• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device (20) for transmitting acoustic messages from electrical devices, comprising at least one microphone (21) and at least one loudspeaker (22). A supply circuit connects the device to a network ( 27), a unit (23), electrically powered by said acoustic message processing power supply circuit, adapted to: ○ receive an acoustic message from the microphone, ○ extract coded data in each acoustic message received, ○ produce an acoustic message, from the data extracted from a received message, ○ transmit this acoustic message to the loudspeaker.
    公开号:FR3048145A1
    申请号:FR1651397
    申请日:2016-02-19
    公开日:2017-08-25
    发明作者:Emmanuel Ruiz
    申请人:Soc Euroamericaine De Commerce；
    IPC主号:
    专利说明:

    The invention relates to a device for transmitting acoustic messages such as control messages for electrical devices.
    The remote control of electrical appliances is generally effected by the transmission of control messages from a radio wave or wired control apparatus. These two modes of transmission have several disadvantages.
    First, wired link transmissions require a high installation cost of wired links. In addition, the control device and the electrical devices must remain connected to the wire link in order to transmit or receive the control messages thus preventing or limiting their relative movement.
    The radio wave data transmission has the advantage of having a long communication range and allowing the relative movement of the control device and electrical devices. Radio data transmissions are also less expensive than wired links. However, data transmission over radio waves is often slower than wired transmission. Advantageously, radio wave data transmissions allow the use of a mobile control apparatus. Thus, the control device can be any type of electronic terminal such as a smart phone, a connected watch or a computer tablet of a user.
    However, radio waves can interfere with surrounding electronic devices. However, interference can lead to problems in the operation of surrounding electronic devices, problems to avoid especially in sensitive environments such as hospitals. In addition, radio waves are used by many everyday technologies such as Wi-Fi® gateways, microwaves, GPS, satellite broadcasting. The radiofrequency spectrum of the radio waves is thus congested and interference during communications can occur. It is therefore necessary to limit the use of radiofrequency communications. Other wireless communication modes, such as optical communications and acoustic communications, can be envisioned for transmitting data to electrical devices. A disadvantage of optical communications such as Li-Fi® is that a receiver of a data transmission must be positioned on a transmission axis of a light beam emitted by a transmitter of the data transmission for the transmitter and the receiver can communicate with each other. Thus, the mobility of the control apparatus is reduced to a very limited detection area of an electrical apparatus having an optical receiver.
    In the case of acoustic communication, acoustic waves propagate in all directions. Thus a control device can be mobile in an area for transmitting data in acoustic form to an electronic device.
    However, to date, no device is adapted to transmit data by acoustic transmission to control electrical devices.
    For example, US2012 / 0171963 discloses a device for transmitting and receiving acoustic waves. More particularly, such a device is also capable of receiving radio waves and converting these radio waves into acoustic waves, advantageously ultrasounds. Thus, such a device can receive data transmitted by radio waves from a radio antenna and transmit these data by acoustic waves to a device of a user such as a mobile phone or a computer. Such a device also makes it possible to receive data transmitted by acoustic waves from an apparatus of a user and to transmit these data by radio waves to a radio antenna. The purpose of this device is to establish a communication between a user's device and a radio antenna so that the user is not exposed to radio waves in order to reduce the health problems associated with a user's exposure to the airwaves. radio. Indeed, according to US2012 / 0171963, radio waves can also cause health problems of a user, such as cancer, if the user is regularly exposed to such waves.
    However, a device as proposed by US2012 / 0171963 does not allow to control an electronic device from an acoustic message transmitted by a control device.
    In addition, everyday electrical appliances are generally not suitable for being controlled by acoustic messages.
    Throughout the text, the term "acoustics" refers generally to sounds and sound waves, that is, to sounds that are audible to the human ear, as well as to infrasound and ultrasound. The term "acoustic frame" refers to a periodic acoustic wave that can have several frequencies. The invention aims to overcome these disadvantages by providing a device and a method for remote control of electrical devices by acoustic waves. The invention aims to provide such a device for selective control without interference of at least one electrical device. The invention also aims at providing such a device that is economical. The invention also aims to provide such a device having a simple structure and adapted to allow its assembly to any electrical device. The invention also aims to provide such a device having a simple operation, fast and easy to configure. The invention also aims to provide such a device that is energy efficient. The invention also aims at providing such a device for controlling several electrical appliances simultaneously. The invention also aims at providing such a device that can extract and quickly process acoustic message data. The invention also aims at providing such a device that is compatible with any electrical distribution network -participating with any installation of electrical energy distribution of residential, commercial or industrial premises- and can be integrated therein.
    To this end, the invention relates to a device for transmitting acoustic messages, such as acoustic messages for controlling electrical appliances, comprising: at least one microphone adapted to receive an acoustic message, at least one adapted loudspeaker for transmitting an acoustic message, characterized in that it also comprises a power supply circuit provided with electrical connectors enabling it to be connected to an electric power distribution network; a unit powered electrically by said power supply circuit; acoustic message processing adapted to: o receive an electrical signal representative of an acoustic message from the microphone, o extract data encoded in a received acoustic message (i.e. extracting these data from an electrical signal representative of acoustic message received), o producing an electrical signal representative of at least one acoustic message that said acoustic message to be transmitted, coding data produced by the processing unit from data extracted from a received acoustic message, o transmit to the loudspeaker an electrical signal representative of each acoustic message to be transmitted.
    Thus, such a device is adapted to receive an acoustic message from a control device of a user, said user device, which can emit acoustic frames. For example, a user device may be a smartphone.
    A device according to the invention is also adapted to transmit acoustic messages to another device according to the invention having the same characteristics, and / or to an electrical device, and / or to a user device. The whole of an acoustic message can be represented by a single acoustic frame or extend over several acoustic frames. An acoustic message may allow either to configure the device according to the invention or to control the device according to the invention or to transmit files such as images, audio files ... An acoustic message to configure the device according to the invention is said configuration message and an acoustic message for controlling an electrical device is said control message.
    Advantageously, the processing unit comprises at least one microprocessor and / or at least one microcontroller. Such a device according to the invention therefore has a simple structure, and is economical. The invention makes it possible, for the first time, to obtain a device that can transmit acoustic messages as a function of the received data.
    More particularly, in order to identify a device according to the invention, the device comprises a physical address, identifying the device individually, stored in memory in a memory of the processing unit. It is then possible for the user device to address acoustic messages to a device according to the particular invention.
    Thus, advantageously and according to the invention, the processing unit is adapted to extract data from an acoustic message selected from the group consisting of: at least one physical address of a device according to the recipient invention connected to an electrical apparatus, making it possible to know to which device the message is addressed, - at least one instruction indicating what action to perform to the device according to the recipient invention connected to an electrical apparatus, and, - data, called content data. , Representative of a file, such as an image, an audio file or a configuration file for configuring the device according to the invention, recipient, connected to an electrical device.
    More particularly, advantageously and according to the invention, the processing unit is adapted to extract a coded data item in an acoustic message from at least one frequency peak included in a frequency spectrum of this same acoustic message.
    According to a first mode of transmission, called sequential transmission, implemented by a device according to the invention, an acoustic message comprises sequentially transmitted frequency peaks. An acoustic message is thus distributed over several acoustic frames. According to a second mode of transmission, said simultaneous transmission implemented by a device according to the invention, an acoustic message comprises frequency peaks transmitted on the same frequency spectrum in order to send the entire message in a single acoustic frame. The mode of transmission is determined according to the intended application. If one wishes to control a single electrical device, the simultaneous transmission is favored because it allows a transmission almost instantaneous. If it is desired to control several electrical devices and / or to send several instructions from a single acoustic message at the same time, the simultaneous transmission can be carried out until saturation of the frequency spectrum, that is to say until that all the frequencies of the frequency band are used. Otherwise, it is preferable to use the sequential transmission longer than the simultaneous transmission because several acoustic frames are sent. Indeed, the sequential transmission has no limit as to the number of frequency peaks that can be transmitted.
    During a sequential transmission, the acoustic frames are transmitted at a predetermined time interval. Thus, when a device according to the invention receives several acoustic frames at non-regular intervals, the processing unit can determine which acoustic frames constitute the acoustic message. Indeed, the processing unit assembles the acoustic frames received according to the predetermined time interval. Thus, the risk of obtaining an unwanted acoustic message is limited. The predetermined time interval can be transmitted to the processing unit by a configuration file. Thus, a device according to the invention has a flexible operation to adapt to different circumstances of transmission. Nevertheless, the two modes of transmission can be combined with each other during a hybrid transmission. A hybrid transmission is then a sequential transmission in which several frequency peaks can be combined in each acoustic frame. A hybrid transmission makes it possible to reduce the transmission time of an acoustic message during a sequential transmission.
    Advantageously and according to the invention, the processing unit comprises a memory in which at least one correspondence table is selected from the group consisting of: a correspondence table relating frequency peaks to physical addresses, a correspondence table relating frequency peaks with instructions. a correspondence table relating frequency peaks with content data.
    Thus, when receiving an acoustic message, the processing unit compares the frequency (s) present (s) in the acoustic message with the instructions, the physical addresses and the content data present in the registered tables. in memory of the processing unit. Advantageously and according to the invention, the tables may be modified by the transmission of a configuration message by the user device to the device according to the invention. The processing of an acoustic message is thus fast, simple.
    Furthermore, preferably, a device according to the invention also comprises an input / output module, connected to the electrical power distribution network, able to transmit and receive data. Advantageously, the input / output module may be a socket on a wired network for transmitting and receiving data by carrier line.
    In addition, advantageously and according to the invention, the device according to the invention comprises a switch comprising connection links to said electrical power distribution network and to said electrical apparatus, the processing unit being adapted to control the opening and the closing the switch according to the acoustic message received. Thus, it is possible to control the opening and closing of the switch to turn on or off an electrical device from an acoustic message sent to the device according to the invention.
    Advantageously, the processing unit stores in memory an operating state of the device according to the invention representative of the opening or closing of the switch. Thus, the device according to the invention is in a closed state when the switch is closed and in an open state when the switch is open.
    Furthermore, preferably, the processing unit is adapted to generate an electrical signal representative of an acoustic message confirming the processing of an instruction, said confirmation message, representative of the fact that the processing unit has processed the instruction of an acoustic message after reception of the latter. Thus, the user is informed that his message has been processed.
    Furthermore, preferably, the processing unit is adapted to generate an electrical signal representative of an acoustic error message, called an error message, indicating an error in the processing of an acoustic message.
    Furthermore, the device according to the invention can communicate with other devices according to the invention having the same characteristics, it is possible to design a home automation network acoustic communication to control a remote electrical device. Such a network is then characterized in that it comprises at least one device according to the invention and in that at least one acoustic message is transmitted in the network. Thus, a network comprises at least one device according to the invention for transmitting acoustic messages between them. Such a network thus makes it possible to transmit the same acoustic message of a device according to the invention to each other device according to the invention of the acoustic range network of each other.
    Such a network then makes it possible to improve the user experience, since the user no longer has to be located near the device according to the invention that receives the acoustic message and is connected to an electrical device. Indeed, each device according to the invention of the network may be a device according to the invention input network and transmit the acoustic messages it receives other devices according to the invention of the network.
    The network thus created is a mesh network in which the devices according to the invention communicate step by step from a device according to the invention input to a device according to the invention recipient connected to an electrical device. Each device of the network according to the invention can therefore be either a device according to the invention input, or a relay device, or even a device according to the recipient invention connected to an electrical device.
    In particular, a zone, called transmission zone, of acoustic propagation is associated with each device according to the invention, and delimits a maximum transmission distance of an acoustic message that can be picked up by another device according to the present invention. in this transmission zone. Indeed, the acoustic messages propagate in a zone of limited propagation. The devices according to the invention are therefore located close to each other in order to ensure transmission of acoustic messages to all the devices according to the invention of the network. Thus, in order to ensure a good functioning of the communication between devices according to the invention: a device according to the invention of input of the network must be situated in acoustic range (transmission zone) of at least one other device according to the invention the invention of the network, - a device according to the invention relay network must be located acoustic range (transmission area) of at least two other devices according to the invention of the network, - a device according to the invention recipient the network must be located in acoustic range (transmission area) of at least one other device according to the invention of the network.
    The maximum distance between two devices according to the invention may be variable. It is advantageously between 1m and 100m, in particular of the order of ten meters. The invention also extends to a method of extracting at least one coded data item in an acoustic message characterized in that: - an acoustic message is received by a microphone included in a device according to the invention, said device reception, the acoustic message having a frequency spectrum comprising at least one frequency peak, - data are extracted from the acoustic message from a relationship between frequency peaks and data by a processing unit. The invention also extends to a method for transmitting at least one data encoded in an acoustic message, characterized in that: - data are encoded in an acoustic message from a relationship between frequency peaks and data by a processing unit. the acoustic message is transmitted by a loudspeaker included in a device according to the invention. data are extracted from the acoustic message from a relationship between frequency peaks and data by a processing unit. The invention also relates to a device, a network and a method characterized in combination by all or some of the characteristics mentioned above or below. Other objects, features and advantages of the invention will become apparent on reading the following non-limiting description which refers to the appended figures in which: FIG. 1 is a functional block diagram of an embodiment of a device according to the invention, - Figure 2 is a sequential diagram of acoustic message processing by a device according to the invention, - Figure 3 is an example of control of a device according to the invention included in a acoustic network comprising devices according to the invention.
    A device 20 according to the invention for transmitting acoustic messages of electrical apparatus is shown in FIG. 1. In the embodiment shown, the device 20 according to the invention is in the form of a housing comprising a peripheral rigid wall 43 defining a frame and delimiting an inner chamber of the device 20 according to the invention. The device 20 according to the invention comprises a microphone 21 for receiving acoustic messages. An acoustic message can be represented in a single acoustic frame or extend over several acoustic frames. Advantageously, the microphone 21 is adapted to be able to pick up ultrasonic acoustic messages, that is to say to detect acoustic frequencies over a frequency band ranging for example from 18 kHz to 100 kHz.
    The device 20 according to the invention also comprises a loudspeaker 22 for emitting acoustic messages. Advantageously, the loudspeaker 22 is adapted to be able to emit ultrasonic acoustic messages, that is to say to emit acoustic frequencies over a frequency band ranging for example from 18 kHz to 100 kHz.
    The device 20 according to the invention also comprises a unit 23 for processing electrical signals representative of acoustic messages. For the sake of clarity, the term "acoustic message" will be used in the remainder of the text, when it is related to a processing unit, an electrical signal representative of an acoustic message. Advantageously, the processing unit 23 comprises at least one microprocessor and / or at least one microcontroller. The processing unit 23 is assembled to the wall of the device 20 according to the invention in the enclosure of the device. The processing unit 23 is connected to the microphone 21 by an electrical connection allowing the processing unit 23 to read the acoustic messages received by the microphone 21. The treatment unit 23 is also connected by an electrical connection to the loudspeaker. speaker 22 so as to be able to transmit electrical signals representative of acoustic messages. The processing unit 23 comprises a physical address, identifying the device according to the invention materially individually, stored in a memory of the processing unit 23.
    The device 20 according to the invention also comprises a switch 28 controlled by the processing unit 23. The switch 28 is placed in a peripheral housing of the device 20 according to the invention and is connected to a first electrical connection connecting the switch 28 to a power distribution network 27. In some embodiments of the invention, the switch 28 is also assembled to a second electrical link connecting the switch 28 to a device 26 of branch on which can be connected a power cable of an electrical device. Nevertheless nothing prevents to directly assemble the switch 28 to a power cable of an electrical device. The electrical connection connecting the switch 28 to the power distribution network 27 may be an electrical connection socket. Thus, when closed, the switch 28 connects a device 26 for connection to the network 27 for distributing electric current. When it is open, the switch 28 isolates the device 26 from the power distribution network 27. Thus, the device 20 according to the invention is in a closed state when the switch 28 is closed and in an open state when the switch 28 is open. The opening and closing of the switch 28 therefore modify the operating state in which the device 20 according to the invention is located. The switch 28 is connected to the processing unit 23 so that the latter can control the opening of the switch 28 as well as its closing. Furthermore, the processing unit stores the operating state of the device 20 according to the invention. The switch 28 may be a diode, a transistor, or a thyristor, so that it can be controlled by electrical signals delivered by the processing unit 23. In particular, the user apparatus makes it possible to control the switch 28 of the device 20 according to the invention. An instruction of an acoustic message may make it possible to control the opening or closing of the switch 28. An acoustic message may also command the device 20 according to the invention to transmit its operating state to the user device.
    The device 26 for connection comprises at least one electrical connection socket. The device 26 for connection can be assembled to a peripheral housing wall of the device 20 according to the invention or be placed outside the device 20 according to the invention. An electrical apparatus 29 may be connected to an electrical connection socket of the connection device 26 via a power supply cable. The electrical apparatus 29 may for example be a lamp or a bulb, or other electrical appliance, in particular home automation. Thus, the electric apparatus 29 is off when the switch 28 is open and on when the switch 28 is closed.
    An acoustic message may be transmitted to a device 20 according to the invention by an apparatus of a user wishing to control an electric apparatus. A user apparatus may be a computer including a program stored in memory for generating acoustic frames from data that can be analyzed by a device 20 according to the invention. An acoustic message 24 then comprises data corresponding to a control of an electrical apparatus 29 or to a configuration file making it possible to configure a device 20 according to the invention so that the processing unit can process the acoustic messages it receives. The acoustic message 24 emitted is then received by any device 20 according to the invention located within the acoustic range of the user device.
    In some advantageous embodiments, an acoustic message has frequency peaks in the frequency spectrum of one acoustic frame (s). Frequency peaks can themselves represent the data of the acoustic message. Alternatively, data may be modulated on these frequency peaks according to any appropriate modulation scheme. The data of an acoustic message can be combined in a single acoustic frame during a simultaneous transmission or extended in several acoustic frames during a sequential transmission. The number of data of an acoustic message during a simultaneous transmission is limited by the number of frequency peaks that can be detected in the frequency spectrum of an acoustic frame. Advantageously, the simultaneous transmission allows an almost instantaneous transmission. A sequential transmission makes it possible to transmit a greater number of data to the device 20 according to the invention than a simultaneous transmission. Indeed, the number of data that can be transmitted is not limited by the number of frequency peaks that can be inserted into the frequency band of each acoustic frame. Thus, the number of data is mainly limited by the number of acoustic frames composing the acoustic message. Since the duration of a sequential transmission depends on the number of acoustic frames to be transmitted, it is advantageous to find an equilibrium between the data to be transmitted and the desired time of a transmission.
    During a sequential transmission, the acoustic frames are advantageously transmitted according to a known predetermined time interval of the device 20 according to the invention. Thus, when a device 20 according to the invention receives several acoustic frames at non-regular intervals, the processing unit 23 can determine which acoustic frames constitute the acoustic message. Indeed, the processing unit 23 assembles the acoustic frames received according to the predetermined time interval. Thus, the risk of obtaining an unwanted acoustic message is limited.
    Both transmission modes can be combined with each other during a hybrid transmission. A hybrid transmission is then a sequential transmission in which several frequency peaks can be combined in each acoustic frame of the acoustic message. Hybrid transmission makes it possible to reduce the transmission time of an acoustic message during a sequential transmission.
    Advantageously, a frequency peak or several combined frequency peaks may represent a datum such as a physical address of a device according to the invention addressed to the acoustic message, said destination physical address, an instruction or data, called data of content, representative of a file such as an image, an audio file or a configuration file. The processing unit 23 is adapted to extract each of these data. The recipient physical address included in the acoustic message 24 allows the processing unit 23 of a device 20 according to the invention receiver receiving the acoustic message 24 to know which device according to the invention is addressed the acoustic message 24 and therefore if the device 20 according to the invention receiver must transmit this acoustic message 24 or treat it. The acoustic message may be a control message for controlling one or more devices according to the invention and / or one or more electrical devices. The control message therefore represents data representative of at least one destination physical address and at least one instruction. Thus a control message makes it possible to control an electric device 29 connected to the device 20 according to the invention, the physical address of which is identical to that included in the control message.
    In order to configure or reconfigure a device 20 according to the invention so that it can process the acoustic messages that reach it, the acoustic message can also be a configuration message of the device according to the invention. A configuration message includes a configuration file. A configuration message is presented by frequency peaks in the frequency spectrum of an acoustic frame (s) representing content data. The combination of the content data makes it possible to constitute a configuration file. A configuration file can then make it possible to construct correlation tables between frequency peaks and data of an acoustic message so that the unit 23 for processing the device 20 according to the invention and the user device, after having memorized this configuration file, can analyze the frequency spectrum of each acoustic frame composing an acoustic message or generate an acoustic message. A configuration file can thus comprise: a correspondence table between frequency peaks and physical addresses; a correspondence table relating the frequency peaks with instructions; a correspondence table relating the peaks of frequency with content data.
    Advantageously and according to the invention, the tables can be modified by sending a configuration message by the user device to the device 20 according to the invention.
    The processing of an acoustic message is thus fast and simple, and makes it possible to control an electric device 29.
    An input / output module 42 connected to the electric power distribution network 27 and to the processing unit 23 makes it possible to receive data transmitted by the processing unit 23 and then to transmit these data by carrier currents in line ( CPL) in the power distribution network 27. The input / output module 42 may be placed in the enclosure of the device 20 according to the invention or may be incorporated in the wall of the device 20. The data may be data previously received by the microphone 21 or the module 42 of the device. input / output of the device 20 according to the invention or data generated by the processing unit 23. The use of an input / output module 42 makes it possible to speed up the transmission of data as well as the transmission range.
    A method for extracting at least one coded data item in an acoustic message received by a device 20 according to the invention is shown in FIG. 2. At a reception stage 31, the microphone 21 of the device 20 according to FIG. The invention receives an acoustic message 24 that can be transmitted by a user device or other device 20 according to the invention. During a step 32, the received acoustic message 24 is then transmitted to the processing unit 23 which analyzes the frequency peaks present in the frequency spectrum of each acoustic frame composing the acoustic message in order to extract the coded data in the acoustic message 24, including the recipient's physical address. A test 33 makes it possible to verify whether the physical address destination of the acoustic message is the same as that of the device 20 according to the invention receiving the message. In order to extract the recipient physical address, the processing unit 23 uses the correspondence table between frequency peaks and physical addresses stored in memory of the processing unit 23. For example, such a lookup table can be represented as below:
    If the physical address to which the acoustic message is addressed is the same as that of the device 20 according to the invention, the processing unit 23 extracts the instruction (s) from the frequency peaks present in the frequency spectrum of each acoustic frame composing the acoustic message. Once the instruction has been extracted, the processing unit 23 executes it during a step 34. To extract the instruction from the acoustic message 24, the processing unit 23 uses the correspondence table between frequency peaks and instructions. stored in memory of the processing unit 23. For example, such a lookup table can be represented as below:
    Thus, in this example, an acoustic message 24 makes it possible to open or close a switch 28 or to control the device 20 according to the invention to send its operating state.
    Thus, if the processing unit 23 detects a frequency peak at 3 kHz of the frequency spectrum of an acoustic frame of the acoustic message, the processing unit transmits a signal representing an instruction to open the switch. The processing unit 23 then sends a confirmation message, during a step 35, indicating that the acoustic message has been processed, to the loudspeaker 22 which transmits this confirmation message.
    If the physical address to which the acoustic message is addressed is not the same as that of the device 20 according to the invention receiving the message, the received acoustic message 24 is transmitted to the loudspeaker 22 which emits it during a step 36. Thus, according to the correlation table between frequency peaks and physical addresses represented above, if a frequency peak at 2 kHz is present in the frequency spectrum of the acoustic message, this means that the acoustic message is intended for the device according to FIG. invention whose physical address is 3. Thus, if the physical address of a device according to the invention receiving this acoustic message is different from that encoded in this acoustic message, this same device according to the invention sends a message acoustic data comprising the same data as the acoustic message received. The processing unit 23 then waits for the microphone 21 to receive a confirmation message during a step 37 indicating that the acoustic message has indeed been processed by the device according to the recipient invention connected to an electrical device. A test 38 is then performed by the processing unit 23 to check whether a confirmation message has been received after a predetermined duration of between 0.5 seconds and 5 seconds, more particularly of the order of 1 to 2 seconds. If a confirmation message has been received, the processing unit 23 then transmits an electrical signal representative of a confirmation acoustic message to the loudspeaker 22 which transmits this acoustic confirmation message during a step 39. broadcast the confirmation message to the user device so that the user knows that his acoustic message has been received and processed by the device according to the recipient invention. If no confirmation message has been received, the processing unit 23 generates and then transmits an electrical signal representative of an error message to the loudspeaker 22 which transmits this error message during a step 40. If a device 20 according to the invention receives an error message, the error message is also transmitted by the loudspeaker 22 in order to reach the user device. Thus, the user is informed that the instruction of the acoustic message has not been processed. If a device 20 according to the invention receives an error message, it can also emit the acoustic message again.
    Alternatively or in combination, when the physical address of the address of the acoustic message 24 is different from that of the device 20 according to the invention receiving the acoustic message 24, the device 20 according to the invention can transmit the data contained in the acoustic message 24 by the input / output module 42.
    In addition, in order to improve the power consumption of the processing unit 23, the processing unit 23 can automatically put itself in standby so as not to carry out any instructions and therefore not to analyze any acoustic message until it is received. an interrupt message. The processing unit 23 consumes very little energy when it is in standby. The interrupt message may be a particular acoustic frequency, called the waking acoustic frequency. Upon receipt of an interrupt message, the processing unit 23 can then process an acoustic message. When the processing unit 23 finishes processing an acoustic message, the processing unit resumes standby. In order for the processing unit 23 to process an acoustic message when receiving this acoustic message, an interrupt message must be transmitted before the transmission of each acoustic message.
    In certain embodiments of the invention, an end of transmission of an acoustic message is indicated by a determined frequency peak for example. An indication of the end of transmission of an acoustic message may be useful when the acoustic message transmitted is composed of several acoustic frames, for example.
    Since a device 20 according to the invention can receive and transmit acoustic messages, it is then possible to arrange several devices 20 according to the invention according to an acoustic network 41, represented in FIG. 3 according to one embodiment, comprising several devices. According to the invention of the same type. Each device according to the invention of the network 41 can be, according to the transmission of the acoustic message, either a device 20 according to the input invention, that is to say the device according to the invention closest to the user device, that is to say a device according to the invention recipient, that is to say the device according to the invention to which is addressed the acoustic message 24 transmitted by the user device, or a device according to the invention of relay transmitting an acoustic message 24 through the acoustic network 41. Each device 20 according to the invention has a zone, called a transmission zone, in which it can transmit an acoustic message 24 that can be picked up by another device 20 according to the invention present in this zone. Each device 20 according to the invention present in a transmission zone of another device 20 according to the invention can receive acoustic messages 24 transmitted by the latter device. Thus, a device according to the invention of the input of the network must be located within acoustic range (in the transmission zone) of at least one other device according to the invention of the network, a device according to the invention of relay of the network must be located within acoustic range (in the transmission zone) of at least two other devices according to the invention of the network, - a device according to the invention to the network recipient and connected to an electrical device must be located within range acoustic (in the transmission zone) of at least one other device according to the invention of the network.
    The maximum distance between two devices according to the invention is preferably less than 25 m, for example of the order of ten meters.
    In certain embodiments, an acoustic network 41 according to the invention has devices 20 according to the invention arranged spatially so that each device 20 has at most two other devices 20 according to the invention in its transmission zone. Nevertheless, nothing prevents having an acoustic network 41 according to the invention of the mesh network type (according to a so-called "mesh" topology) as represented in FIG. 3, that is to say an acoustic network 41 comprising a device 20 according to the invention having more than two other devices 20 according to the invention in its transmission zone.
    Thus, in the acoustic network 41 shown in FIG. 3, a device A according to the invention comprises, in its transmission zone 43, two other devices B, C according to the invention. The device B according to the invention comprises in its transmission zone 44 the device A according to the invention, the device C according to the invention and a device D according to the invention. The device C according to the invention comprises in its transmission zone 45 the device A according to the invention, the device B according to the invention and the device D according to the invention. The device D according to the invention comprises in its transmission zone 46 the device B according to the invention, the device C according to the invention and a device E according to the invention. The device E according to the invention comprises in its transmission zone 47 the device D according to the invention and a device F according to the invention. The device F according to the invention comprises in its transmission zone 48 only the device E according to the invention.
    In an example of transmission of an acoustic message through an acoustic network 41, a user chooses to send an acoustic message to the device F according to the invention when it is close to the device A according to the invention. The device F is thus the device according to the recipient invention whose physical address is encoded in the acoustic message and the device A is the device according to the input invention. The other devices according to the invention are then devices according to the invention of relay. In this example, the user apparatus transmits the acoustic message. The acoustic message can then propagate in the acoustic network along several paths: A-B-D-E-F, A-C-D-E-F, A-B-C-D-E-F, A-C-B-D-E-F. Thus, certain devices according to the invention receive several times the same acoustic message. Each device according to the invention then processes only the first acoustic message 24 that it receives in order not to send several times the same acoustic message. To do this, a device 20 according to the invention can memorize a history of the acoustic messages received in memory or an index indicating that an acoustic message has just been received or transmitted by this same device 20. In order to manage the collisions, each processing unit 23 of each device according to the invention implements a protocol such as the MACAW protocol ("Multiple access with collision avoidance for wireless").
    Advantageously, a datum of an acoustic message can indicate that the acoustic message must be processed by all the devices according to the invention of the acoustic network. Thus, it is possible to send an opening command of all the switches 28 of the devices according to the invention of the acoustic network 41.
    In another embodiment of the invention, a device according to the invention does not have a switch but relays only the acoustic messages.
    In another embodiment according to the invention, the user can modify the operating state of a device according to the invention by voice command. To do this, at least the processing unit of the input device of an acoustic network comprises a speech recognition program making it possible to identify the instruction as well as the physical address of a device according to the invention in the voice command. The processing unit of the device according to the input invention can then convert the voice command into an acoustic message described above and transmit this acoustic message to the other devices according to the invention of the acoustic network.
    Such devices according to the invention can be used in particular in a living room to control a household electrical appliance remote from the user, or in an industrial or commercial premises (offices, hospitals, workshops ...) to control domotic electrical appliances or not. The commands that can be transmitted by an acoustic network according to the invention are not only ignition or extinguishing commands, but extend to all commands that can be addressed to electrical devices (intensity, temperature control , activation / deactivation of alarms, request of status messages ...). In particular, an electrical appliance that can be controlled by a device according to the invention can for example be chosen from the group consisting of lighting appliances, heating appliances, air-conditioning appliances, locking devices (electric locks). ), automatic closing devices (motorized opening, automatic gates ...), electric shutters, household appliances (refrigerators, washing machines, dishwashers, ovens, hobs, etc.), alarm, computer apparatus, television apparatus, public address apparatus, communication apparatus (telephony, Internet connection boxes, etc.), luminous and / or audible signaling apparatus, floor cleaning apparatus, and window cleaning appliances or vertical walls. Other examples are possible.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1 / - Device (20) for transmitting acoustic messages, comprising: - at least one microphone (21) adapted to receive an acoustic message, - at least one speaker (22) adapted to emit an acoustic message, characterized in it also comprises a power supply circuit provided with electrical connectors enabling it to be connected to a power distribution network (27); a unit (23) powered electrically by said power supply circuit; acoustic messages adapted to: o receive an electrical signal representative of an acoustic message from the microphone (21), o extract coded data in a received acoustic message, o produce an electrical signal representative of at least one acoustic message, said message acoustic signal to be transmitted, coding data produced by the processing unit from the data extracted from a received acoustic message, o tran transmitting to the loudspeaker (22) an electrical signal representative of each acoustic message to be transmitted.
    [0002]
    2 / - Device according to claim 1, characterized in that it comprises a physical address identifying the device, stored in a memory of the processing unit (23).
    [0003]
    3 / - Device according to one of claims 1 or 2, characterized in that the processing unit (23) is adapted to extract from a received acoustic message data selected from the group consisting of: - at least one physical address, at least one instruction, and data representative of a file.
    [0004]
    4 / - Device according to one of claims 1 to 3, characterized in that the processing unit (23) is adapted to extract a coded data in a received acoustic message, from at least one peak frequency included in a frequency spectrum of this acoustic message received.
    [0005]
    5 / - Device according to one of claims 1 to 4, characterized in that the processing unit (23) comprises a memory in which is stored at least one correspondence table selected from the group consisting of: - a table correspondence connecting frequency peaks with physical addresses, - a correspondence table relating frequency peaks with instructions. a correspondence table relating frequency peaks to data representative of a file.
    [0006]
    6 / - Device according to one of claims 1 to 5, characterized in that it also comprises a module (42) input / output, connected to the network (27) of electric power distribution, able to transmit and receive Datas.
    [0007]
    7 / - Device according to one of claims 1 to 6, characterized in that it comprises a switch (28) comprising connecting connections to said network (27) of electric power distribution and to an apparatus (29) electrical, the processing unit (23) being adapted to control the opening and closing of the switch (28) according to a received acoustic message.
    [0008]
    8 / - Device according to one of claims 1 to 7, characterized in that the processing unit (23) is adapted to generate an electrical signal representative of an acoustic message confirmation of treatment of an instruction, said message confirmation message, representative of the fact that the processing unit (23) has processed an instruction of an acoustic message after reception of the latter.
    [0009]
    9 / - Device according to one of claims 1 to 8, characterized in that the processing unit (23) is adapted to generate an electrical signal representative of an acoustic error message, said error message, indicating an error in the processing of an acoustic message.
    [0010]
    10 / - Network (41) home control system of electrical appliances characterized in that it comprises at least one device (20) according to one of claims 1 to 9.
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    同族专利:
    公开号 | 公开日
    FR3048145B1|2019-05-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20050254344A1|2002-09-04|2005-11-17|David Barras|Data transmission system and method using sound waves|
    CN103244445A|2012-02-14|2013-08-14|上海爱加科技有限公司|Online intelligent fan and communication method thereof|
    US20150088495A1|2013-09-24|2015-03-26|Powervoice Co., Ltd.|Encoding apparatus and method for encoding sound code, decoding apparatus and methdo for decoding the sound code|US10623403B1|2018-03-22|2020-04-14|Pindrop Security, Inc.|Leveraging multiple audio channels for authentication|
    US10665244B1|2018-03-22|2020-05-26|Pindrop Security, Inc.|Leveraging multiple audio channels for authentication|
    US10873461B2|2017-07-13|2020-12-22|Pindrop Security, Inc.|Zero-knowledge multiparty secure sharing of voiceprints|
    法律状态:
    2017-02-28| PLFP| Fee payment|Year of fee payment: 2 |
    2017-08-25| EXTE| Extension to a french territory|Extension state: PF |
    2017-08-25| PLSC| Search report ready|Effective date: 20170825 |
    2018-02-26| PLFP| Fee payment|Year of fee payment: 3 |
    2018-03-09| CA| Change of address|Effective date: 20180129 |
    2018-03-09| CD| Change of name or company name|Owner name: COPSONIC, FR Effective date: 20180129 |
    2020-02-28| PLFP| Fee payment|Year of fee payment: 5 |
    2021-02-26| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1651397|2016-02-19|
    FR1651397A|FR3048145B1|2016-02-19|2016-02-19|DEVICE FOR TRANSMITTING ACOUSTIC MESSAGES|FR1651397A| FR3048145B1|2016-02-19|2016-02-19|DEVICE FOR TRANSMITTING ACOUSTIC MESSAGES|
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