• 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:
    Charging and communication unit comprising a primary circuit board (1) and a secondary circuit board (2), which circuit boards (1, 2) are arranged in each part of two cooperating parts (90, 91) in a device, which parts (90, 91 ) are mutually movably arranged with each other, where a first part (91) is supplied with power by an external source while a second part (90) is inductively supplied via said first part (91), that said primary circuit board (1) cooperates with a primary coil ( 3) and said secondary circuit board (2) cooperates with a secondary coil (4) for inductive transmission of electrical energy between the circuit boards (1,2) via said primary (3) and secondary coil (4), said primary (3) and secondary coils (4) are also arranged to inductively transmit data communication between said circuit boards (1,2).
    公开号:SE1651482A1
    申请号:SE1651482
    申请日:2012-05-04
    公开日:2016-11-11
    发明作者:Gustafsson Niclas；Andersson Andreas
    申请人:Se Dev Ab；
    IPC主号:
    专利说明:

    TECHNICAL FIELD The present invention relates to a charging and communication unit comprising a primary circuit board and a secondary circuit board, which circuit boards are arranged in each part of two cooperating parts in a device, which parts are mutually reciprocally arranged. extreme source while a second part is inductively supplied via said first part, said primary circuit board cooperating with a primary coil and said secondary circuit board cooperating with a secondary coil for inductive transmission of electrical energy between the circuit boards via said primary and secondary coil, and said electric charge comprising and communication unit. Furthermore, the invention relates to a method for operation and charging of such an electric lock.
    The application constitutes a separate application from SE-A-1250456.
    STATE OF THE TECHNOLOGY In today's society, everything changes from manually manoeuvrable applications to miscellaneous devices, e.g. from manual locks to electric locks. However, there are a lot of disadvantages to installing and using electric locks. In order for the locking part that is located in the door itself to be supplied with power, cables are laid on the outside of the door, which can easily lead to cable breakage and destruction of the cables. To prevent this, there is the alternative of the drill channel through the door for that way to reach with the cables to the lock. This is a time-consuming and costly installation and the risk of cable breakage remains. Another variant is to put rails on the outside of the door to hide the cables, which is not so beautiful either.
    There are locks, for example, in hotels where this problem with the cables has been solved by providing the locking part in the door with batteries, but then the batteries must be regularly inspected and replaced so that they do not risk running out when a guest is housed in the room.
    Another problem that applies to today's electric locks is the lack of coded information transmission, which is a requirement that is coming more and more.
    Document WO 00/77330 describes a door-mounted electric lock that is controlled, monitored and programmed electronically by a main station, a so-called online lock.
    Power is transmitted wirelessly between one locking part in the door and the other locking part in the door frame and data is transmitted via optical or radio link.
    BRIEF DESCRIPTION OF THE INVENTION It is an object of the present invention to eliminate or at least minimize the above problems, which is achieved by a charging and communication unit according to claim 1.
    Thanks to the invention, both energy and data can be transferred inductively, which gives the advantage that cables can be excluded to the part of the charging and communication unit which is placed in, for example, a door. This is advantageous in many ways as wiring / on the door is cumbersome and expensive. With a lock comprising charging and communication unit according to the invention, the locking insert can have the same shape as a conventional locking plate, which makes it easy for a locksmith who has ready-made milling tools to mill out a hole in a door / door frame adapted for said locking insert for recessed mounting of the locking insert. This installation without cables also eliminates the problem of wear / damage to cables that lie on the outside of doors.
    According to another aspect of the invention, it is also advantageous from an environmental aspect that batteries do not need to be used and less cable is used. Furthermore, impaired charging function is avoided due to that charging pins become worn or oxidized.
    According to a further aspect of the invention, the charging and communication unit offers a simple way of detecting possible tampering with the lock and can thereby transmit the alarm.
    According to another aspect of the invention, the advantage is given that through a hand-held unit which provides sufficient drive current to open, for example, a lock in a non-current-connected place can be used.
    According to another aspect of the invention, a capacitor is used in the wireless part, which provides a long service life and stable operation.
    According to a further aspect of the invention, the advantage is obtained that no peripheral components need be used.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with reference to the accompanying drawing figures, in which: Fig. 1 shows a block diagram of a primary circuit board according to the invention, Figs. Fig. 2 shows a block diagram of a secondary circuit board according to the invention; Fig. 3 shows a primary locking insert according to the invention, Fig. 4 shows a secondary locking insert according to the invention, Fig. 5 shows an electric lock in the door and the door frame according to the invention, Fig. 6 shows a block diagram of a primary circuit board according to the invention, Fig. 7 shows different signals schematically, Fig. 8 shows different signals schematically, and Fig. 9 shows a schematic more detailed figure of a pulse width module according to the invention.
    DETAILED DESCRIPTION OF THE DRAWINGS In the solution shown, the following figures describe a preferred embodiment of the invention. The charging and communication unit according to the invention is intended to cooperate between two different parts. The example described below describes how the charging and communication unit is connected to an electric lock in a vertically placed door and associated door frame, but it should be understood that the invention works equally well on doors / gates of a different type than the one described here. It should also be understood that the charging and communication unit can be used in applications other than electric locks, such as handheld units e.g. barcode scanners.
    Figure 1 shows a block diagram of a primary circuit board 1 according to the invention, the primary circuit board 1 comprises a first drive stage 11, a first communication module 12, a pulse width module 13, a primary coil 3, a first pulse receiving module 14 and a first processor 10. Said primary circuit board 1 is further connected to a fixed power supply 5 and arranged in a door frame.
    Figure 2 shows a block diagram of a secondary circuit board 2 comprising a secondary coil 4, a second drive stage 21, a second communication module 22, a second pulse receiving module 23 and a second processor 20. Said secondary circuit board 2 is further connected to a cell 6 such as a battery or a capacitor and the secondary circuit board 2 are arranged in a door.
    Below is a more detailed description of what some of the different parts in the two-circuit boards 1, 2 comprise, but it should be understood that other variants are also possible without compromising the function of the electric lock.
    Both the first and second processors 10, 20 preferably have built-in hardware functions such as Timers, UART, etc. to save space on the primary and secondary circuit boards 1, 2 and to reduce costs.
    The first and second communication modules 12, 22 comprise a standard type circuitry for modulating and demodulating bitstreams, for example RS232.
    The communication module 12, 22 may be integrated in the processor 10, 20.
    The first and second drive stages 11, 21 in their basic form comprise N-channel MosFET, the mosfet drives IC, capacitors and resistors to drive the current at the degenerate carrier frequency through the primary and secondary coil 3, 4 to create a magnetic field.
    The first and second pulse receiving modules 14, 23 comprise full wave shot cooling rectifiers, capacitors, resistors, optocouplers / transistors to handle the energy taken up by said primary and secondary coil 3, 4.
    The primary 1 and the secondary 2 circuit board also comprise a diode bridge (not shown) which diode bridge converts alternating current to direct current. Before the diode bridge, the transmitted pulses for the communication are picked out in the first alternative in the second communication module 12, 22. Otherwise, the communication pulses at the rectification are destroyed.
    With reference to Figures 3, 4 and 5, it will now be described how the locking device according to the invention can be arranged in a door. The embodiment describes a preferred embodiment and other ways of arranging the devices according to the invention are of course conceivable within the scope of the inventive idea.
    Figures 3 and 4 show two cooperating locking inserts 7, 8 which are arranged in a door and a door frame, respectively. The locking inserts are similar in appearance and arranged mirror-inverted. The description below thus refers to both locking inserts 7, 8, even reference is sometimes made to the locking insert which is door-mounted or alternatively core-mounted. In cases where a specific locking insert is meant, the terms primary locking insert 7 and secondary locking insert 8, respectively, are used, while reference to a locking insert thus refers to either of the two.
    The locking insert 7, 8 preferably has the same shape as a conventional locking plate 9 (see Fig. 5), i.e., elongated and with a flat front, which makes it easy for a locksmith who has ready-made milling tools to mill out a hole in a door / door frame adapted for said locking insert 7, 8 for recessed mounting of the locking insert.
    Figure 4 shows the front of a locking insert in a perspective view. The locking insert 7, 8 comprises a mounting plate 73, 83 with mounting holes 72, 82 for e.g. screws at each end. The fringe / outer side of the mounting plate 73, 83 comes to life with the door core when the locking insert 7, 8 is arranged in the door 90 / the door core 91.
    The rear side of the locking insert 7, 8 is best seen in figure 3. On the rear / inner side 71,81 of the mounting plate there is a preferably elongate projecting section 74, 84 around which the coil 3, 4 is wound. The spool 3, 4 is for the application described below preferably built of copper wire with a diameter of 0.6 mm which is wound 16 turns around the ridge 74, 84. The spool has a length of 112 mm, a height of 16 mm and a width of 5 mm . The primary coil 3 in the primary locking insert 7 and the secondary coil 4 in the secondary locking insert 8 are wound exactly the same and tuned so that they are in resonance with each other, ie size, number of turns, thickness of wire and resistance and capacitance in the wire are equal. The locking insert 7, 8 further comprises the primary respective secondary circuit board 1, 2 to which the primary and secondary coil 3, 4, respectively, are connected. The circuit board 1, 2 is preferably arranged on the plane part 75, 85 of the projecting section. To protect the coil 3, 4 and the circuit board 1, 2, the locking insert 7, 8 preferably comprises a housing which can be arranged around the elevation 74, 84 and its parts (not shown). .
    Figure 5 schematically shows an electric lock according to the invention mounted in door 90 and door frame 91. During assembly, holes are milled for the lock inserts 7, 8 in door 90 and door frame 91 respectively and the secondary lock insert 8 is connected via, for example, a small channel locked in the door. The primary locking insert 7 is connected to a fixed power supply 5 arranged in connection with the door core or its vicinity. The two locking inserts 7, 8 are arranged substantially opposite each other and mirror-inverted with preferably an air gap between them of a maximum of 30 mm when the door is closed. The primary locking insert 7 preferably comprises a magnet which senses when the door is closed (not shown).
    The function of the electric lock will now be described with reference to the both circuit diagrams shown in Figures 1 and 2. In the figures the arrows represent electrical signals (so-called pulse trains) sent between the output inputs of the various components and the arrows indicate the direction in which the signal goes. Further, a solid arrow symbolizes command / energy transfer initiated by the primary processor 10 while a dashed arrow symbolizes command / energy transfer initiated by the secondary processor 20. Dashed arrows can also be said to symbolize standby mode.
    In addition to transmitting / receiving data, the primary circuit board 1 (see Figure 1) in the door core 91 has the task of generating a pulse train C which is sent to the primary coil 3 to create a magnetic field which inductively transmits energy and data to the secondary coil 4 in the door. 90. The task of the secondary circuit board 2 is to convert the inductively generated signal from the secondary coil 4 into data and energy and to process and respond to the data being transmitted.
    The first processor 10 generates a pulse width modulated signal B intended for energy transfer to a first input b on a first drive stage 11 and intended as a carrier for the data communication. The pulse width modulated signal B is a DC voltage and preferably has a fixed frequency with a voltage amplitude tuned to the characteristic of the primary coil 3 (in this case 12 V DC). The processor 10 also transmits a pulse train A which is intended for data communication to a first input a of a pulse width module 13, possibly via an extreme communication module 12 for modifying the pulse train A from parallel to serial communication if such a unit is not integrated in the processor 10. In parallel with the pulse train A also a bypass signal A "from the processor to a second input a" of the pulse width module 13 which is the parent pulse train A so that an output signal A "" from the pulse width module 13 to a second input "" on the first drive stage 11 is adapted to provide different operating cases. the hose locking device (see figure 6 and description of different operating cases later on). The output signal A ”” from the pulse width module 13 is used to control (on / off) the output of the first drive stage 11 to the primary coil 3 at a frequency which is determined by the data communication and therefore varies continuously. From the first drive stage output, a magnetic field inducing signal / a pulse train C is sent to the primary coil 3 which is a result of the signal A "" from the pulse width module 13's influence on the pulse width modulated signal B from the processor 10. In the primary coil 3 a magnetic field is generated by the current which is sent through the coil from the fixed current connection 5 and the frequency of the pulse train C. The signal transmitted from the primary coil is a simulated AC voltage.
    The induced signal D is taken out at each end of the secondary coil 4 and sent to each input of a second pulse receiving module 23 on the secondary circuit board 2. In the pulse receiving module 23 the voltage level of the signal D is rectified and adjusted. From the pulse receiving module 23 a pulse train E is sent intended data communication to the second processor 20, possibly via an extreme secondary communication module 22 for modifying the pulse train E from serial to parallel communication if such a unit is not integrated in the processor 20. From the second pulse receiving module 23 inductive energy is also taken out for charging an electric cell 6, which may be a battery but preferably a capacitor for driving the components of the second circuit board 2.
    The secondary circuit board 2 has on its secondary coil 4 connections connected its receiving second communication module 22 in order to be able to receive the communication which is inductively generated by the primary circuit board 1 at the same time as the inductive energy in turn charges the cell 6 connected to the secondary circuit board 2. In order for the secondary circuit board 2 to be able to respond to the data received from the primary circuit board 1, a second drive stage 21 and a second processor 20 are connected just like the primary circuit board 1 and for the primary circuit board 1 to be able to receive data as it is connected as the the secondary circuit board 2 with the exception of the cell 6. In this method one can thus charge and communicate between the primary 1 and the secondary 2 circuit board inductively via the respective coil 3, 4. The second processor 20 generates two signals which are connected to a second drive stage 21. On the one hand a single pulse width modulated signal F intended as a carrier for the data communication and on the other hand a pulse train G, via the second communication module 22, intended for the data communication used to control the output of the second drive stage 211 for modulating the response signal H which is transmitted to the primary circuit 4. that the primary circuit board 1 should be able to receive data, there is a first pulse receiving pulse width module 14 which, in the same way as with the secondary circuit board 2, receives the signal H from both ends of the primary coil 3. The first pulse receiving pulse width module 14 rectifies the signal H and forwards it to the first processor 10 via the first communication module 12. The signal H from the secondary circuit board 2 is only intended to transmit data communication and therefore the rabbit energy in this signal is kept at a low level. This means that very small capacity of the electric cell 6 in the secondary circuit board is sufficient. In addition, the cell 6 must have the capacity to operate the lock under a doorway. Furthermore, this means that control of possible intrusions is facilitated because a small influence of the door / lock means that the response signal from the secondary circuit board 2 is disturbed, which becomes a trigger signal of intrusion.
    In this method, one can thus inductively via respective coil 3, 4 send communication between the primary 1 and the secondary 2 circuit board at the same time as the secondary circuit board 2 is charged with electrical energy. Referring to Figures 6, 7 and 8, some different operating cases will now be described.
    As mentioned above, the first processor 10 generates a pulse width modulated signal Bavsedd for energy transfer to a first input b on a first drive stage 11. It is generally seen about energy transfer by means of pulse width modulation (PWM) that the pulse train B generated is a square wave consisting of a part of the pulse years high, ON, and some when the heart rate is low, OFF. The power of the pulse width modulated signal B can be increased or decreased by varying the distribution between ON and OFF, ie the duty cycle and the more the increase ON, the higher the power of the pulse train. For example, if 10% ON and 90% OFF, a small effect is obtained, while if 100% ON, a full effect is obtained.
    Energy transfer combined with data communication Through its development work, the applicant has developed a lock where it has become possible to combine inductive energy transfer with data communication, which as far as applicants know has not been done before. In order for the transmission of energy and data to function, a fixed frequency is used and with a voltage amplitude which is tuned to the primary 3 and secondary 4 coils so that the two coils 3, 4 resonate with each other. This gives a high efficiency / transfer function, which cannot be used if different frequencies are used. At 50% ON and 50% OFF, most charge versus bus speed and bus range are obtained for communication / data transfer. At 50% ON and 50% OFF, a pulse train B is obtained to the first input b of the first drive stage 11, where each pulse also consists of a partial pulse of 50% ON and a partial pulse of 50% OFF. The pulse width modulated signal B in this case is a DC voltage of 230 kHz, 12 V DC. If the characteristics of the coils change so that resonance in the coils arises at a higher frequency, it means that the speed of the data transmission can be increased.
    The pulse width modulated signal B is always subordinate to the signal from the first pulse width module 13, i.e. pulse train A "" which causes the pulse width modulated signal B to be further modulated by the communicating pulse train A "" so that the output signal C from the first drive stage 11 has an appearance consisting of a pulse train with an appearance according to A "" but where the ON pulses also have a 50/50 characteristic according to the signal B.
    The pulse train A "" is in turn a result of the possible modulation from the bypass signal A "of the data communication signal A. In case one wishes to transmit energy and data, the bypass signal A" was naturally located in a second 130 of two series-connected transistors in the pulse width module 13, whereby the data communication signal A is affected by the first pulse width module 13 via the first 131 of the two-series connected transistors (see Fig. 6). The output pulse train A ”” is thus identical to the data communication signal A, i.e. in data transmission year A = A ”” which is shown in figure 7 when the pulse train A has been modulated to send data information (the pulse train which corresponds to a character, eg a letter), and when the output signal C has the same characteristic but the respective ON pulse in the pulse train has a 50/5 0 characteristic according to the signalB.
    Figure 9 schematically shows a more detailed figure of the first pulse width module 13 which comprises said first transistor 131 (which is an NPN transistor) and said second transistor 130 (which is a PNP transistor) and 5 resistors R1, R2, R3, R4 , R5. The location of the Resistom R2 depends on the make and type of “Mosfet Driver IC.” In the example shown, an MCP14E4, with Weak pull-up on the enable leg only, is used from Microchip. Resistor R2 helps the "Mosfet Driver IC" "to go high, because the internal resistor connected to the plus voltage itself does not have the strength to pull the enable leg high, when the other PNP transistor reaches 130 years closed. The values of the resistors R1, R2, R3, R4, R5 are dimensioned according to the properties of the two transistors 131 and 130 and 'Mosfet Driver IC', and the properties themselves differ between make and model number and therefore the resistance values can also vary. To a professional, their placement is obvious. Most of them are pure pull-up / pull-down and the remaining are series resistors (R4, R5) which limit the current to the base of transistors 130, 131.
    As described above, in case one wishes to transfer energy and data, the bypass signal A ”is set in the low state which then allows current fl surface through the second transistor 130 from emitter to collector. The first transistor 131 is controlled by the data communication signal A, so when the data communication signal A reaches a high (ON) level, current also flows through the first transistor 131, from collector to emitter. Since the emitter of the first transistor 131 is connected to common ground / 0 V with the second transistor 130, the second input a of the first drive stage a "will be pulled low each time the data communication signal A is high (ON) and then closes the output of the first drive stage c. However, each pass data communication signal A is low (OFF), the second input of the first drive stage a "" is pulled high because there is no connection then to common ground / 0 V. This results in the second input a of the first drive stage 11 being pulled high by the resistor R2 whereupon the pulse width modulated signal B which enters the first input of the first drive stage, the beaver exits at the output of the first drive stage c. In this way, the control data communication signal A over the output signal A ”” from the first pulse width module 13 via the first 131 and the second 130 transistor and the output signal C from the first the drive stage 11 is then subordinate to the data communication signal A.
    In data communication, the pulse width modulated signal B is thus modulated by the pulse train A "" at the speed that the pulse train A "has. The pulse width modulated signal B thus always has a carrier frequency of 50% ON and 50% OFF, but then the signal B is further modulated by the signal A ”” in that the signal A ”” controls the output c of the first drive stage 11 to the coil 3. If data is sent, fls are obtained pulse trains with 50/50% and if some data is sent, fewer pulse trains with 50/50% are obtained, which means that the more data that is sent, the more energy can be transferred. The energy transfer is thus to some extent proportional to the amount of data transferred. In addition, the energy transfer is also proportional to the current data in that the respective characters have different configurations of ON pulses and AV pulses, respectively. The signal C has a single characteristic of 50/50 in the ON pulses, but due to the characteristics of the two coils (inductance of the coil together with a capacitor which is parallel to the coil, so-called LC coupling or resonant circuit) a signal D is obtained from the secondary coil 4 where the 50/50 characteristic has been eliminated so that the signal D substantially resembles the signal A in the operating case energy transmission and data communication, i.e. the DIA (according to FIG. 7) or the similar signal A ", i.e. the DIA" in the fast charge operating mode.
    Fast chargingAfter opening a door that has an electric lock according to the invention, a fast charge is run by the cell 6 and then runs 100% ON (in this described example approx. 5 s), so no data is then sent to the primary coil 3. To be able to have the possibility to fast charge the cell 6, the data communication A is bypassed by the signal A ”in the first pulse width module 13. After fast charging, the cell 6 is fully charged. When it is only desired to transfer energy, the bypass signal A "is set naturally high, whereby the low sub-pulses OF the data communication signal A" disappear "and are replaced by ON pulses in the second transistor, ie A" "= A". The output pulse train A "" becomes identical to the bypass signal A ", ie 100% ON, as shown in Figure 8. In the case where no data communication takes place, the signal C to the primary coil 3 receives an effect corresponding to 50% ON and 50% OFF , figure 8. This operating mode is preferably only relevant when it is desired to quickly charge the cell 6 in the secondary circuit board 2, while data communication is preferably cut continuously at all other times, e.g. in order to maintain the cell 6 but also to monitor the operation of the lock and ensure that intrusion attempts / manipulation do not take place between periods of normal data communication in order to lock / unlock the lock.
    Referring to Figure 9, the second transistor 130 shuts off when fast charging, the dabypass signal A ”is high so no current goes from the emitter to the collector of the second transistor 130. This results in the second input a” ”of the first drive stage being left fl surface and interpreted intimately in the first drive stage 11 as high, whereupon the pulse width modulated signal B entering the first input of the first drive stage also exits the output of the first drive stage c. In this position, the input data communication signal A can control the second input a "" of the first drive stage and the output signal C from the first drive stage 11 looks like the pulse width modulated signal B.
    The electric lock includes a magnet that senses when the door is closed and so the front door is closed, communication is sent continuously, except during fast charging, to detect any tampering. Data transmitted can be anything, eg information about what is happening in the door, the position of the pistons, the door is closed, etc. The data information transmitted between the two coils 3, 4 is encrypted and the self-coding takes place in the first 10 or the other processors via an encryption key located in the two processors 10, 20. The encryption key itself is thus sent without data being sent coded and then decoded in the receiving processor 10, 20. It has been possible to perform tests with a magnet in the locking insert without noticing any appreciable effect of the magnet, but should it turn out that it lowers the effect appreciably, it is realized that the locking insert is made longer so that the distance between the magnet and the coil is increased.
    Communication between the primary 1 and secondary 2 circuit board takes place regularly so-called. Master slave polling system. The primary circuit board 1 (master) will send data to the secondary circuit board 2, (slave), and the secondary circuit board 2 responds 12 only when the primary circuit board 1 so requires. When the secondary circuit board 2 is to answer is decided depending on the type of message ex: the primary circuit board 1 sends "needs dozen flushing" and when the secondary circuit board 2 receives this it is programmed to respond. At the same time, the primary circuit board 1 knows that it should receive a response from the secondary circuit board 2 and thus shuts off all charging so that collisions do not occur. When the primary primary circuit board 1 has received a response, it returns to, depending on the response, fast charging or sending unimportant data in order to achieve maintenance charging.
    The charging and communication unit according to the invention provides the opportunity to obtain information in a simple manner that someone is trying to manipulate the lock (intrusion). By regularly sending information about the voltage levels in the secondary circuit board 2, the unit can detect voltage changes if e.g. someone puts a piece of sheet metal in the air gap between the primary 1 and the secondary 2 circuit board by the sheet metal piece stealing magnetic fields. Then the electric lock must run certain pulses with fast charge before the plate steals magnetic field, fast charge must be run to maintain the charge, in this described example 5 V in cell 6, so that cell 6 is not discharged, which triggers a alarm signal.
    The first pulse receiving module 14 on the primary circuit board 1 is generally in standby mode to avoid collisions and errors and is switched on only when data is received from the secondary coil 4.
    When the electric lock is in operation and the secondary circuit board 2 has received a valid signal for door opening, the door can be opened. When the door is opened, energy is drawn from the cell 6 and in the described example, the cell 6 manages a door opening (ie the control mechanism that allows the lock to be opened and locked) and then, when the door is closed, charged by running a fast charge. When the fast charging is complete, data also begins to be transferred and at the same time the cell 6 is charged with maintenance. When the contact between the door and the door frame is broken (after receiving a valid opening signal), everything shuts off to save energy and when a magnet senses the door closed again then a fast charge is run, in this case about 5s, and then the door opens again. The fast charge function is an important part because it is the charged cell 6 that drives the lock. The fast charging function is made possible thanks to the use of a single capacitor and thanks to the use of a capacitor, a longer service life of the cell 6 and a more stable operation is obtained.
    The distance between the primary 1 and the secondary 2 circuit board is advantageously a maximum of 30 mm for best results of the inductive transmission. Should something come in between that 13 disturbs the magnetic field, the alarm goes off, so manipulation of the lock is extremely difficult because so the rapid communication between the two circuit boards 1, 2 is broken, an alarm goes off. Only with a rat opening signal is it possible to open the door and coded data transmission in a lock is a requirement that is becoming more and more common.
    It should be understood that the voltage interval for high or low signal is depending on which voltages are worked with internally on the circuit board, which means that the voltage level for high or low can therefore be varied depending on IC circuits, regulators etc.
    ALTERNATIVE EMBODIMENTS The invention is not limited by what has been described above, but can be varied within the scope of the appended claims. It will be appreciated, for example, that the primary 7 and the secondary 8 locking insert may have other shapes than what has been described, for example, the locking inserts may be longer and the coils may be wound down so that they become longer and thereby transfer more energy.
    Furthermore, those skilled in the art will appreciate that the various components may have alternative locations shown in the figures and the care of the resistors is dimensioned according to the properties of the transistors without resorting to the inventive idea for that purpose.
    In the described electric lock, an electric pressure lock is used as a lock, which locks the door when the door slams shut. Should a door with the electric lock according to the invention be left open for a whole day so that cell 6 is completely discharged, a quick charge is started as soon as the door is closed again, the first time a lock according to the invention is used or if cell 6 is completely discharged, a fast charge of approx. before the lock can be used again. This is a great advantage that makes it advantageous to use this lock in desolate or sill-visited places that may also be exposed to moisture and cold, e.g. a mast. If a lock according to the invention is then installed at the mast, there is a possibility that the part that sits in the door frame is in a handset that the technician who needs access to the mast has with him. The handset is then placed against the lock so that resonance between the coil in the lock and the coil in the handset occurs and quickly charges the time needed to transfer more than enough energy to the lock cell to be able to open the lock (in the described example 13 s). Then no batteries or keys are required to enter and manipulate the lock for an outside year, not simply as both encryption and resonance must be achieved.
    The person skilled in the art also realizes that in places where it can be difficult to change batteries or when it is not possible to have a cable, it is very advantageous to have a lock according to the invention. Another alternative embodiment is to place at the handle some form of casing which houses the spool along the outer edge of the casing so that when the door is closed, the spool is placed opposite the door core where the other spool is located. Other parts of the lock are then placed inside the cover and in this embodiment no damage to the door is needed at all.
    It is also very advantageous to connect the electric lock with an access control system so you are sure that only authorized personnel can unlock.
    It is also understood that instead of a magnet, some other form of sensor mechanism could be used e.g. optical or mechanical.
    Those skilled in the art will also appreciate that an alternative embodiment may be that the electric lock includes rechargeable batteries which, however, does not provide the same benefits as the use of capacitors.
    权利要求:
    Claims (1)
    [1]
    Charging and communication unit comprising a primary circuit board (1) and a secondary circuit board (2), which circuit boards (1, 2) are arranged in each part of two cooperating parts (90, 91) in a device, which parts (90, 91 ) are mutually movable arranged with each other, where a first part (91) is supplied with power by an external source while a second part (90) is inductively supplied via said first part (91), that said primary circuit board (1) cooperates with a primary coil (3) and said secondary circuit board (2) cooperates with a secondary coil (4) for inductive transmission of electrical energy between the circuit boards (1, 2) via said primary (3) and secondary coil (4), said primary (3) and secondary coil (4) also are arranged to inductively transmit data communication between said circuit boards (1, 2), characterized in that said inductive transmission uses a fixed frequency and with a voltage amplitude tuned to the primary (3) and secondary (4) coils so that the two coils (3, 4 ) goes in reso nans with each other. . Charging and communication unit according to claim 1, characterized in that said primary coil (3) and said secondary coil (4) are wound exactly the same. . Charging and communication unit according to claim 1 or 2, characterized in that said data communication is coded. . Charging and communication unit according to claim 3, characterized in that said primary circuit board (1) comprises a first processor (10), that said secondary circuit board (2) comprises a second processor (20) and that both coils (3, 4) are encrypted and The encoding is arranged to take place in the first (10) and the second (20) processor, respectively, via an encryption key present in the two processors (10, 20). . Charging and communication unit according to claim 3 or 4, characterized in that said circuit boards (1, 2) comprise communication modules (12, 22). . Charging and communication unit according to claim 5, characterized in that said communication modules (12, 22) are integrated in said processors (10, 20). 10. ll. 12. 13. 16. Charging and communication unit according to claim 5 or 6, characterized in that said primary and secondary circuit board (1, 2) comprises a diode bridge device arranged to convert alternating current to direct current and that said data communication is arranged to be supplied to one of said communication modules (12, 22). ) before said diode bridge. . Charging and communication unit according to any one of the preceding claims, characterized in that said primary circuit board (1) is connected to a fixed power supply (5). . Charging and communication unit according to any preceding claim, characterized in that said primary circuit board (1) further comprises a first drive stage (11), and a first pulse width module (13) and a first processor (10) for generating a pulse train (C) comprising electrical energy and data to the primary coil (3) and receiving a response signal (H) including data from the secondary coil (4). Charging and communication unit according to any one of the preceding claims, characterized in that said secondary circuit board (2) further comprises a second drive stage (21), a second pulse width module (23) and a second processor (20) receiving an induced signal (D) comprising electrical energy and data from the second coil (4) and generation of said response signal (H). Charging and communication unit according to claims 9 and 10, characterized in that the electrical energy in the induced signal (D) drives the components in the secondary circuit board (2) and that a subset of the energy is stored in a cell (6), preferably a capacitor, for use. when generating the response signal (H) and possibly operating mechanical components in the second part (90). Electric lock characterized in that it comprises a charging and communication unit according to any one of claims 1 - 11. Electric lock according to claim 13 characterized in that said primary circuit board (1) and primary coil (3) are arranged in a first locking insert in a door frame ( 91), and said secondary circuit boards (2) and secondary coil (4) are arranged in a second locking insert in a door (90), the locking inserts being arranged substantially opposite each other with an air gap between them when the door is closed, and includes a sensor that detects when the door is closed. Electrical reading according to claim 12 or 13, characterized in that said reading inserts 5 comprise mounting plates (73, 83) at the rear / inner side (71, 81) of which an elongate projecting section (74, 84) is arranged around which said coil (3, 4 ) is wound. A method of operating and charging an electrical reading in a door according to any one of claims 12-1410, wherein the method comprises the following steps: a) detecting via said sensor that the door is open or closed, b) energy and data transfer between the circuit boards ( 1, 2) via said coils (3, 4), while repeatedly detecting the position of the door according to step c), said data transmission between the circuit boards (1, 2) being coded.
    类似技术:
    公开号 | 公开日 | 专利标题
    SE538775C2|2016-11-15|Charging and communication unit
    CN101542059B|2013-10-30|Lock arrangement and method of providing power to lock
    US9290966B2|2016-03-22|System for providing power and data transmission between a door and a frame
    KR20080038683A|2008-05-07|Apparatus and method for wireless power transmition
    CN205210155U|2016-05-04|Monitor is opened unusually to smart electric meter case
    CN205502775U|2016-08-24|Passive electronic lock through smart mobile phone power supply
    CN205231988U|2016-05-11|Spontaneous electric sensor and door and window monitoring device that generates electricity certainly
    DE202014010683U1|2016-08-11|Housing with wireless communication features
    SE1651482A1|2016-11-11|Charging and communication unit
    CN201663492U|2010-12-01|Wireless control device of driving structure
    CN202658984U|2013-01-09|Embedded type automatic fortification alarm intelligent pair lock
    CN202731460U|2013-02-13|Electronic lock
    CN210181098U|2020-03-24|State visualization Internet of things meter box management system
    CN107028539A|2017-08-11|A kind of toilet paper puts on short allowance device
    KR101552310B1|2015-09-10| access control system using comprehensive wiegand signal gemerator
    CN202838478U|2013-03-27|Ultra-thin multifunctional access control device
    CN207742705U|2018-08-17|A kind of access control and attendance equipment
    CN101845920A|2010-09-29|Electric appliance
    CN206877448U|2018-01-12|A kind of self-power generation type wireless door magnetic alarm
    CN210152441U|2020-03-17|Network-controlled laboratory multifunctional lock
    CN201576024U|2010-09-08|Multifunctional electricity meter box
    CN210924722U|2020-07-03|Intelligent door control device
    CN2613561Y|2004-04-28|Digital door lock with controller
    CN209231997U|2019-08-09|A kind of Internet of Things smart lock
    CN206058338U|2017-03-29|The remotely control lockset system of identifying user identity
    同族专利:
    公开号 | 公开日
    SE542573C2|2020-06-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1651482A|SE542573C2|2012-05-04|2012-05-04|Charging and communication unit comprising inductive transmission between two cooperating mutually moving parts|SE1651482A| SE542573C2|2012-05-04|2012-05-04|Charging and communication unit comprising inductive transmission between two cooperating mutually moving parts|
    [返回顶部]