• 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:
    Intelligent power supply for led lighting systems with integrated light and presence sensors and visible light and power line communication that, in addition to the power step (8), incorporates a light sensor (2) and a motion sensor (9) ) connected externally, and internally, microprocessor (4), variable gain amplifier (3), where the signal from the light sensor (2) that controls the microprocessor (4), low-pass filter (6) of very low frequency, to which the amplified signal (5) arrives and eliminates all electrical noise, and, to program and configure the source (1), micro-cut detector (12) and micro-consumption generator (13) to receive data, and macro detector cuts (14) for programming. In addition, it incorporates a local power supply (10) that keeps the microprocessor (4) active in all situations in which the power step (8) is turned off. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2643137A1
    申请号:ES201630495
    申请日:2016-04-18
    公开日:2017-11-21
    发明作者:Agustin Montoro Iradier；Jose Vicente Molera Picazo；David DOMINGUEZ SANCHEZ
    申请人:Airis Tech Solutions S L；AIRIS TECHNOLOGY SOLUTIONS SL；
    IPC主号:
    专利说明:

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    The power supply (1) also includes a local power supply (10) that allows the microprocessor (4) to be kept active in all situations in which we turn off the power step (8) to achieve maximum energy savings otherwise, we would only have to partially turn off the power step (8) to continue delivering power to the microprocessor (4) and other auxiliary devices.
    The communications of the source (1) are essential to carry out very precise and, therefore, highly effective energy saving plans. Such is the case, to adapt the lighting to changing times according to the season of the year, or according to the special circumstances of a locality (if it is of industrial type or mainly of residence or of second residence for weekends or holidays, etc.) or the orography of the city (certain streets receive more or less light at certain times, etc.) or at office hours, etc.
    Communications are also used to facilitate the configuration of sources remotely. When the configuration is locally, "flash programming" or "pulse programming" can be used. For a custom configuration, such as assigning the identity of each source, the flash configuration is especially efficient and convenient.
    These communications are achieved through the two functions referred to above as "data reception" and "data transmission" which are carried out through corresponding communication components provided in the proposed power supply.
    Thus, to receive data, an external device (28), which as indicated in previous sections we call modem, makes certain micro cuts in the alternating current network, referenced at the entry point as (11), close to the crossing by zero, marking certain cycles of the wave that are detected by a micro-cut detector (12) provided for this purpose. Counting the number of normal cycles between marked cycles, the information to be received is coded thus performing the "data reception" function.
    To transmit data, the source (1) also marks certain network cycles through a micro consumption generator (13) that incorporates, by generating a low frequency alternation (of less than 3 Khz) between current consumption and absence of it during a network half cycle, which is easily detectable in the device
    image8
    ൌ ଶ ݄
    We pass from the Laplace variable p to the permanent rate pulsation variable
    and ob- → െ ݅ ߱ ሻ ݌ ߱ ሻሺ ݄ /. ݅ → ݌ /. ݄ ൌ ሺ ଶ ݄ and we get the squared module of the gain: ߱
    we have
    ఒమ ఠమ ା ఒ ሺ ఒ ି ሺ ିଶା ఒ ሻ ఠమ ା ఒఠర ሻ
    5
    We solve the cutting pulse in which the square gain is 1/2:
    ඩ െ1൅ ሺ െ2൅ ߣ ሻ ߣ ൅ ට 1 ൅ ߣ ቀ 4 ൅ ߣ൫2 ൅ ߣ ሺ െ4൅5 ߣ ሻ ൯ ቁ ߣ ଶ
    ߱ → √2
    10 We solve  so that the cutting pulse is the unit and we choose the positive value:
    ߣ → 1 ൅√2
    The profit looks like this:
    fifteen
    1h ൌ
    ൅ ݌ ሻ 2√ሺ ݌1 ൅
    As a final step, we choose a cutoff frequency of half Hz and assign the value of 470nF to C2, since we still have degrees of freedom and the result is: ሼ R1 → 280528.2380739626, R2 → 677255.0769867889, C1 → 0.000001134680374315354 ሽ
    20 We take the standardized values of R1 = 270K, R2 = 680K and C1 = 1uF.
    Figures 4 and 5 show the Bode diagram of the magnitude of response of the filter and phase, respectively.
    The local power supply (10) is preferably carried out, as shown in the diagram in Figure 6, operating as follows: The resistor R4 polarizes and drives the transistor Q2 from the output of the source rectifier bridge (10) . Through resistance R3, Q2 polarizes transistor Q1, which also starts to drive. At the moment when the current of Q1 manages to raise the voltage of the resistance R1 to the value of the diode
    30 zener DZ1 minus the emitting base drop of Q1, the zener diode DZ1 starts to drive and steals the current from the base of Q1 which starts to drive less. Since the current of Q1 was circulating through the coil L, it reacts by reducing the collector voltage of Q1 until the diode D1 supplants Q1 and remains with the current that cannot change abruptly in the coil. The diode D2 also conducts and removes the current from the base of Q2, which transistor Q1 no longer conducts, accelerating this disconnection by means of resistor R2, which also steals current from the base of Q1. This situation lasts until the coil L completely discharges its current on the load, after which the process starts again causing R4 to lead Q2 again. This situation lasts until the coil L completely discharges its current on the load, after which the process starts again causing R4 to lead Q2 again. The current iL through the coil is a sawtooth with a maximum current whose maximum is
    iLmax ൌ ௏ ీౖభ ି୚୉୆. If the load voltage increases too much, diode DZ2
    ୖଵ
    would start driving through R6 and the MOSFET transistor (Metal-oxide-semiconductor Field-effect transistor, metal-oxide-semiconductor field effect transistor) M1 would disconnect Q2, so the coil could not be reloaded. The result is a constant voltage at the VDD output equal to that of the zener diode DZ2 plus the threshold voltage of the MOSFET M1 to power the microprocessor (4) and other subsystems of the source. This local power supply (10) is novel because it uses the "thyristor effect" of the two transistors Q1 and Q2 to achieve a low-cost circuit that resists high input voltages and makes it ideal for maintaining the power of the source ( 1) Main when it is necessary to turn off the LED source.
    For its part, the micro-cut detector (12), as seen in Figure 7-A, preferably takes the voltage of the network input (11) by means of the resistive divider formed by resistors R1 and R2 which gives a half wave voltage (16) which we apply to a comparator (17) that measures the difference with a constant voltage reference (18) and thus we can distinguish between a micro cut (19) and a normal half wave signal (16) . The comparator output (17) is applied to the microprocessor (4) which checks if the voltage is below the reference in moments synchronized with the network near the zero crossing of the network wave. The data is encoded by counting the number of normal half-wave cycles (16) between micro cuts (19).
    The micro consumption generator (13) will be carried out by means of the circuit shown in Figure 8-A in which a MOSFET M1 transistor marks a half-wave cycle with a low frequency carrier that produces a current consumption pattern (20) in the network, by means of the activation signal (20a) of the gate of transistor M1 represented in the scheme of Figure 8-B, easily identifiable at destination and that does not decrease in intensity with the distance appreciably, being able to distinguish at destination ( in the modem) between normal (21) and marked (22) cycles using digital filters. As before, the information is encoded by the number of normal cycles between marked cycles. We chose a different system for transmission and reception because the microprocessor (4) preferred for the source (1) is low cost and therefore does not have the necessary computing power for digital filtering, but it does for the detection of micro cuts, while the modem can have a powerful microprocessor.
    Finally, the macro cut detector (14) simply resides in the microprocessor software (4) that counts the ignition time between cuts and receives the same information as the micro cut detector (12) or that the flash pulses encoding in the ignition times between cuts the information to be transmitted.
    Figure 9 shows the frames of transmission or reception of data. They are similar between the four communication systems, that is, by macro cuts, by micro cuts by micro consumptions and by flash. There are some marks (23) and some spaces (24) between the marks, the length of the spaces being what transmits the information. The marks (23) can be a network half cycle where we have seen a micro cut or other network half cycle where the modem has seen a low frequency carrier from the micro consumption generator or a total network cut for reception by macro cuts or a space without light between two flash of a mobile camera. We have a preamble (25) with two spaces of three units (can be three network cycles for micro cuts or micro consumptions, or three seconds for macro cuts or 3 times 30ms at 50Hz for flash pulses lasting three times the half cycle of network, for synchronization reasons). Next comes an indicator of the data group (26) to be transmitted starting in five units for the "Yes / No" type options, seven units for the maximum lamp current, etc. At the end of the whole, a stop (27) formed by a single space of three units is sent.
    Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to make its explanation more extensive so that any person skilled in the art understands its scope and the advantages that derive from it, stating that, within its essentiality, it may be carried out in other embodiments that differ in detail from that indicated by way of example, and to which it will also achieve the protection that is sought as long as it is not altered, changed or
    image9
    权利要求:
    Claims (1)
    [1]
    image 1
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    同族专利:
    公开号 | 公开日
    WO2017182685A1|2017-10-26|
    ES2643137B1|2018-08-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US9386668B2|2010-09-30|2016-07-05|Ketra, Inc.|Lighting control system|
    JP6371158B2|2013-11-14|2018-08-08|ルネサスエレクトロニクス株式会社|LED lamp, projector, data processing method, and collision prevention apparatus|
    法律状态:
    2018-08-29| FG2A| Definitive protection|Ref document number: 2643137 Country of ref document: ES Kind code of ref document: B1 Effective date: 20180829 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630495A|ES2643137B1|2016-04-18|2016-04-18|SMART POWER SUPPLY FOR LED LIGHTING SYSTEMS WITH INTEGRATED LIGHT AND PRESENCE SENSORS AND COMMUNICATION BY VISIBLE LIGHT AND POWER LINE.|ES201630495A| ES2643137B1|2016-04-18|2016-04-18|SMART POWER SUPPLY FOR LED LIGHTING SYSTEMS WITH INTEGRATED LIGHT AND PRESENCE SENSORS AND COMMUNICATION BY VISIBLE LIGHT AND POWER LINE.|
    PCT/ES2017/070224| WO2017182685A1|2016-04-18|2017-04-10|Intelligent power supply for led lighting systems, with integrated light and presence sensors, and power line and visible light communication|
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