CN102410876A - Illumination sensing device - Google Patents
Illumination sensing device Download PDFInfo
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- CN102410876A CN102410876A CN2011102990040A CN201110299004A CN102410876A CN 102410876 A CN102410876 A CN 102410876A CN 2011102990040 A CN2011102990040 A CN 2011102990040A CN 201110299004 A CN201110299004 A CN 201110299004A CN 102410876 A CN102410876 A CN 102410876A
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Abstract
The invention relates to an illumination sensing device which comprises a wireless emitting unit and an illumination sensing unit, wherein the wireless emitting unit and the illumination sensing unit are respectively connected with an energy-storing power supply unit; a trigger signal is supplied to the wireless emitting unit by the illumination sensing unit; the energy-storing power supply unit comprises a photoelectric switching device and further comprises a first energy-storing unit and a second energy-storing unit which are in parallel connection; a volume of the second energy-storing unit is more than the volume of the first energy-storing unit; a first voltage control structure and a first switch unit controlled by the first voltage control structure are arranged in front of the second energy-storing unit; and when an output voltage of the first energy-storing unit reaches a threshold value of the first voltage control structure, the first switch unit is switched on by the first voltage control structure to charge the second energy-storing unit. The illumination sensing device is capable of storing electric energy, quickly supplying a working current to a circuit at rear end, obviously shortening a waiting time for supplying power to the circuit at rear end, working in a low energy-consumption mode and sending the signal in a wireless mode, thereby avoiding complex wiring and long-term maintenance, randomly distributing the mounting of composed equipment according to a practical condition and promoting the mounting flexibility.
Description
Technical field
The present invention relates to the illumination sensing device, is a kind of wireless illumination sensing device concretely.
Background technology
Illumination with office or public domain, road is an example, and the situation at existing abundant daylight or lamp need not to re-use lighting, usually with energy savings., often control automatically at present for this reason, have only when extraneous lighting level drops to be lower than under the preset threshold and prescribe a time limit, just turn-on power is used lighting through illuminance transducer illumination light source; When the ambient lighting degree surpasses upper threshold, then automatic cutout mains lighting supply.The energy-provision way of tradition illuminance transducer mainly contains two kinds, and a kind of is to provide work required energy with wired mode, as supplying power through 220VAC or 12/24VDC; Another kind is to adopt the battery mode to supply power.These two kinds of power supply modes require to carry out complicated wiring in the actual installation process, and in use require regular or irregular system or battery to be safeguarded, these require to give installs and use and all bring certain difficulty.In addition, the existing illuminance transducer of restriction adopts above dual mode that the main former also because circuit power consumption is big of energy is provided, and needs more powerful power supply during its long-term work and for it lasting energy is provided.
The mode of ambient light illumination device sensor output signal also mainly contains two kinds; A kind of is the illumination intensity signal that collects through various serial or parallel buses (like 485 buses) output with wired mode, and another kind is with the form of wireless signal the signal that collects to be transmitted; First kind of control mode need connect up and match with it, brings difficulty to actual installation.Second kind of control mode is more convenient in installation process, but there is strict requirement in country to radio transmit power, has limited the power of wireless transmit.
Summary of the invention
To above-mentioned situation; The invention provides a kind of illumination sensing device of illumination sensing device, particularly a kind of low energy consumption, can for the illumination sensing device electric energy be provided through opto-electronic conversion; And signal is sent through wireless mode; Avoid complicated wiring and long-term maintenance, the installation of each component devices can be distributed arbitrarily according to actual conditions, improved installation flexibility.Opto-electronic conversion can also provide WV fast simultaneously.
Illumination sensing device of the present invention comprises the wireless transmitting unit and the illumination sensing unit that are connected with the energy storage power supply unit respectively, and the illumination sensing unit provides trigger pip to wireless transmitting unit.Energy storage power supply unit wherein is between the photoelectric conversion device of sun power and electric energy output end, to be provided with energy storing structure; Said energy storing structure is first energy storage device and second energy storage device of parallelly connected state; And the stored energy capacitance of second energy storage device is greater than first energy storage device; In the parallel circuit at second energy storage device place; Also be provided with the first Control of Voltage structure before this second energy storage device and receive the break-make of this charging circuit of first switch element control of its control, when the output voltage of just thinking first energy storage device was higher than the setting threshold of this first Control of Voltage structure, the first Control of Voltage structure conducting, first switch element charged to second energy storage device.
Energy storage power supply unit in apparatus of the present invention can guarantee store electrical energy under more weak illumination condition, and makes the apparatus that receives its power supply can normally carry out work.After energy storage is full, but the electricity supply and use equipment continuous firing is tens of even nearly hundred hours.Its groundwork process and principle; Be that output current by the photoelectric conversion device of sun power is earlier to less first energy storage device charging of stored energy capacitance; Make it can be satisfied the output voltage of the minimum WV of back-end circuit, and begin to be the back-end circuit power supply by rapid charge.And in the second energy storage device circuit parallelly connected with first energy storage device, because the output voltage of first energy storage device does not reach the setting threshold of the first Control of Voltage structure as yet, therefore the circuit of second energy storage device is in cut-off state.Has only the setting threshold that reaches (being equal to or higher than) the first Control of Voltage structure when the output voltage of first energy storage device; This first Control of Voltage structure is conducting first switch element; Begin second energy storage device is charged; When first energy storage device made the voltage of output be lower than the setting threshold of WV and the first Control of Voltage structure of back-end circuit because of continued power, the output current of photoelectric conversion device just stopped the charging of second energy storage device, and restarts first energy storage device is charged; Make it Rapid Realization export power supply again to the back-end, so repeatedly.When second energy storage device of this big stored energy capacitance store into be enough to satisfy the electric energy of output is provided after, back-end circuit is carried out long-time continued power in beginning by second energy storage device to the back-end.
The energy storage power supply unit carries out opto-electronic conversion and stored energy, for entire circuit provides operate as normal required energy.After the entire circuit operate as normal, the illumination sensing unit carries out sensing to ambient light illumination, and with converting digital signal into after the simulating signal amplification, is input in the wireless transmitting unit.Wireless transmitting unit is judged and is sent corresponding wireless signal according to the variation of illumination sensing unit input signal.
On the said structure basis, described photoelectric conversion device is preferably at least two groups of parallelly connected state, can be first energy storage device and the charging of second energy storage device more quickly to increase the opto-electronic conversion amount, to satisfy, and the use of shortening the duration of charging needs.
Said second energy storage device also can preferably adopt at least two group capacitance structures of parallel connection, to increase the memory capacity of electric energy, satisfies the needs that more permanent power supply can be provided for back-end circuit.
In the said structure; Switch element in the parallel circuit at said second energy storage device place preferably is adopted as MOSFET (FET), positive-negative-positive triode or NPN type triode, like the low grid voltage P channel mosfet of the PowerTrench of Fairchild semiconductor company technology etc.; It has cut-in voltage low (1.8V); Characteristics such as conducting resistance is little, and switching speed is fast can effectively reduce the power consumption of circuit.Metal-oxide-semiconductor is a kind of conducting control structure commonly used at present, and the P channel MOS tube has the low level on state characteristic, can realize circuit function more easily.The said first Control of Voltage structure that is used to control its on/off can be selected at present existing report and/super low-power consumption that the intersil company that uses the produces chip ISL88003 series that resets, or the super low-power consumption of the MAXMIN chip series of products etc. that reset.This type chip has the advantages that to select multiple different reset levels, can adapt to and satisfy the use needs of different situations.
Experiment shows; In the illumination sensing device of the present invention; Except that special purpose or needing; Said first energy storage device is adopted as the tantalum capacitance structure of at least one capacity >=470uF, like the TAJ series tantalum electric capacity that AVX Corp. produces, model such as TAJC337*006#NJ, TAJD337*006#NJ, TAJD4777*006#NJ etc.; Second energy storage device is adopted as the farad capacitor structure of at least one capacity >=0.33F; SD series farad capacitor and SG series farad capacitor like the production of Panasonic company; Model such as EECS0HD 104 (H), EECS5R5 (H) 474 also can be the PAS farad capacitors of the PAS614L model of Shoei company production.Adopt the capacitance structure of said capacity and model can satisfy use needs generally.
Illumination sensing unit described in the above-mentioned illumination sensing device of the present invention generally can comprise the photosensitive structure and subsequent the computing amplifying unit of sensitive context illumination, and its output terminal is connected with described wireless transmitting unit.The VTB8440B that photosensitive structure can adopt PerkinElmer company to produce, or the devices such as LLS05-A produced of gloomy despot's photoelectricity company limited.The computing amplifying unit can be selected the integrated operational amplifier spares of producing like TI company such as OPA364 for use.The simulating signal of photosensitive structure output exports described wireless transmitting unit to through output terminal after the computing amplifying unit converts digital signal into.
Input end at said photosensitive structure can be connected with the divider resistance choice structure that is used to be provided with the sensing threshold value, through the divider resistance place in circuit with different resistances, can realize the adjustment to the intensity of illumination sensing range.Wherein, Said divider resistance choice structure can adopt by the electric resistance structure of driving switch adjusting or continuously adjustable variable resistor structure etc. multi-form; The horizontal DIP switch of the ALPS company SSGM140100 model of producing for example; The 3362 serial slip variohms that BOURNS company produces etc. are to adapt to and the needs that satisfy different application scenarios.
The output terminal of above-mentioned illumination sensing unit can be connected with the wireless transmit chip corresponding input end mouth that has emitting antenna in the wireless transmitting unit.Because wireless transmit requires the emissive power limit value less than 5mW (e.r.p); The dutycycle limit value that transmits is less than 1%; Effective propagation path is not less than 100m; Therefore can to select the power consumption under the holding state for use be the STM300 wireless transmit chip of 0.2uA to the wireless transmit chip; Or chips such as the nrf240 in the nrf series, nrf2401, nrf24L, nrf905, and like module, PTR2030 radio receiving transmitting modules such as the CC2500 in SmartRF 04 series of Chipcon company, CC2550, or adopt the forms such as radio receiving transmitting module of Zigbee technology.
Illumination sensing device of the present invention; Can through opto-electronic conversion to less solar energy acquisition with carry out and storage of electrical energy, can satisfy fast for back-end circuit provides required supply voltage/electric current, obviously shorten the stand-by period that back-end circuit is supplied power; Back-end circuit can be started working fast; Simultaneously can be embodied as back-end circuit again provides long normal power supply, and with the mode work of low energy consumption with through wireless mode signal is sent, and has avoided complicated wiring and long-term maintenance; The installation of each component devices can be distributed arbitrarily according to actual conditions, improved installation flexibility.
Below in conjunction with the embodiment of accompanying drawing illustrated embodiment, foregoing of the present invention is remake further detailed description.But should this be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following instance.Do not breaking away under the above-mentioned technological thought situation of the present invention, various replacements or change according to ordinary skill knowledge and customary means are made all should comprise within the scope of the invention.
Description of drawings
Fig. 1 is the structured flowchart of illumination sensing device of the present invention.
Fig. 2 is a kind of structural representation of energy storage power supply unit among Fig. 1.
Fig. 3 is a kind of structural representation of illumination sensing unit among Fig. 1.
Fig. 4 is a kind of structural representation of wireless transmitting unit among Fig. 1.
Embodiment
Illumination sensing device of the present invention as shown in Figure 1 comprises the wireless transmitting unit and the illumination sensing unit that are connected with the energy storage power supply unit respectively, and the illumination sensing unit can provide trigger pip to wireless transmitting unit.
Shown in Figure 2 is a kind of version of energy storage power supply unit; For between the photoelectric conversion device J1 of sun power and electric energy output end, being provided with energy storing structure; Said energy storing structure is the first energy storage device C1 and the second energy storage device C2 of parallelly connected state; Wherein the first energy storage device employing capacity is the tantalum capacitance structure of 470uF, and the second energy storage device employing capacity is the farad capacitor structure of 0.33F.In the parallel circuit at second energy storage device C2 place; Also be provided with the first Control of Voltage structure U1 before this second energy storage device C2 and receive the break-make of this charging circuit of first switch element Q1 control of its control; When the output voltage V CC that just thinks the first energy storage device C1 was higher than the setting threshold of this first Control of Voltage structure U1, the first Control of Voltage structure U1 conducting, the first switch element Q1 charged to the second energy storage device C2.Between the photoelectric conversion device J1 of the first energy storage device C1 and the second energy storage device C2 and front end; Respectively be connected with the rectification unit that the front end rectifier structure D1 by diode constitutes respectively; While is in the electric energy output end of the first energy storage device C1 and the second energy storage device C2; The corresponding rectification unit that also constitutes through the rear end rectifier structure D2 by diode that connects is separately respectively exported electric energy; To guarantee that when not having illumination the electric charge of farad capacitor is only supplied with the back-end circuit use in the circuit, on this circuit, has no consumption.In the parallel circuit at second energy storage device C2 place; Before this second energy storage device C2; Also be provided with the super low-power consumption of producing by intersil company reset formations such as chip ISL88003 series (or the super low-power consumption of MAXMIN reset chip series) the first Control of Voltage structure U1 and receive the switch element Q1 of its control, control the break-make of this charging circuit.The P channel mosfet of the BSS138N that produces of switch element Q1 FDN304P that can select to produce or infineon etc. wherein like FAIRCHILD company.Have only when the output voltage V CC of the first energy-storage units C1 is equal to or higher than the setting threshold (can use needs to set according to difference) of this first Control of Voltage structure U1; The first Control of Voltage structure U1 is this first switch element of conducting Q1, begins the second energy-storage units C2 is charged.
When the original state of energy storage power supply unit does not have energy storage; The electric current that is provided by photoelectric conversion device J1 is the first energy storage device C1 rapid charge; And when its positive terminal voltage is lower than the resetting voltage of setting threshold of the first Control of Voltage structure U1; The RESET pin output voltage identical of the first Control of Voltage structure U1 with the pin of output voltage V CC, thus make switch element Q1 be in cut-off state, and the second energy storage device C2 is not recharged.Because the first energy storage device C1 capacity is less relatively, can realize that therefore more than the rapid at short notice minimum WV VCC of voltage charging back-end circuit with the first energy storage device C1, beginning is the back-end circuit power supply.
Behind the resetting voltage of the voltage charging U1 of first energy storage device C1 setting threshold; The RESET pin output low level of the first Control of Voltage structure U1; Thereby make switch element Q1 conducting, the electric current that provided by solar photo-electric conversion device J1 this moment changes by charging to the second energy storage device C2 through switch element Q1.Because the second energy storage device C2 capacity is bigger, its charging voltage rises slowly, but this moment, the first energy storage device C1 voltage can guarantee the back-end circuit operate as normal, can not have influence on the operate as normal of back-end circuit.
Reduce to the resetting voltage of the first Control of Voltage structure U1 when following when making its supply voltage behind the first energy storage device C1 continued power; The RESET pin of the first Control of Voltage structure U1 ends switch element Q1 again; Stop charging, and recover again the first energy storage device C1 is charged the second energy storage device C2.Come back to more than the resetting voltage of the first Control of Voltage structure U1 when the voltage of the first energy storage device C1 after, switch element Q1 is conducting once more, begins again the second energy storage device C2 is charged.So back and forth, after the second energy storage device C2 charges to more than the minimum WV VCC of back-end circuit, be that back-end circuit provides long power supply by the second energy storage device C2.
Can know that through calculating the appearance value of establishing the second energy-storage units C2 in the circuit is C, its maximum charging voltage is U
Max, because not exclusively there is minimum WV U in the farad capacitor discharge
Min, then its energy that can store is:
The farad capacitor stored charge is:
; I.e.
So it can provide the ampere-hour of energy to count n for
:.If charging current is I
In, then the farad capacitor duration of charging is:
, promptly
Required electric current is 1 μ A when wireless transmitting unit in apparatus of the present invention and illumination sensing unit operate as normal; Minimum WV is 2.1V; When if the second energy storage device C2 voltage dashes to 4.5V; Its continuous firing duration is:
; Wherein
; Further learn
; After promptly once being full of electricity, can continuous firing 220 hours.The photoelectric conversion device J1 of sun power selects that output voltage is the solar panels of 18uA for the 5V electric current under 200lux illumination for use; Then after the first energy storage device C1 charging; For back-end circuit WV is provided fast time is
; Just under the illumination of 200lux, can start working with interior in two minutes; Improve work efficiency greatly, shortened start-up time.
Shown in Figure 3 is the structure of a kind of illumination sensing unit in the said apparatus, comprises the photosensitive structure D5 and subsequent the first amplifying unit U3 that are used for sensitive context illumination, and its output terminal is connected with described wireless transmitting unit.The VTB8440B that photosensitive structure D5 can adopt PerkinElmer company to produce, or the devices such as LLS05-A produced of gloomy despot's photoelectricity company limited.The simulating signal of said photosensitive structure D5 output exports described wireless transmitting unit to through output terminals A D_0 after computing amplifying unit U3 converts digital signal into.The OPA364 integrated operational amplifier that computing amplifying unit U3 can select for use TI company to produce.Wherein, also be connected with and select structure by the different divider resistances of driving switch S1 operation, be used to be provided with and adjust the sensing range threshold value of intensity of illumination at the input end of photosensitive structure D5.
In wireless transmitting unit shown in Figure 4, the wireless transmit chip U7 corresponding input end mouth that has emitting antenna in the output terminal of illumination sensing unit and the wireless transmitting unit is connected.Because wireless transmit requires the emissive power limit value less than 5mW (e.r.p); The dutycycle limit value that transmits is less than 1%; Effective propagation path is not less than 100m; Therefore can to select the power consumption under the holding state for use be the STM300 wireless transmit chip of 0.2uA to the wireless transmit chip; Or chips such as the nrf240 in the nrf series, nrf2401, nrf24L, nrf905, and module, PTR2030 radio receiving transmitting modules such as the CC2500 in SmartRF 04 series of Chipcon company, CC2550, or adopt the forms such as radio receiving transmitting module of Zigbee technology.
The course of work of apparatus of the present invention is that the energy storage power supply unit carries out opto-electronic conversion and stored energy, for entire circuit provides operate as normal required energy.After the entire circuit operate as normal, the illumination sensing unit carries out sensing to ambient light illumination, and with converting digital signal into after the simulating signal amplification, is input in the wireless transmitting unit.Wireless transmitting unit is judged and is sent corresponding wireless signal according to the variation of illumination sensing unit input signal.
Claims (9)
1. illumination sensing device; It is characterized by and comprise wireless transmitting unit and the illumination sensing unit that is connected with the energy storage power supply unit respectively; The illumination sensing unit provides trigger pip to wireless transmitting unit; Energy storage power supply unit wherein is between the photoelectric conversion device (J1) of sun power and electric energy output end, to be provided with energy storing structure; Said energy storing structure is first energy storage device (C1) and second energy storage device (C2) of parallelly connected state; And the stored energy capacitance of second energy storage device (C2) is greater than first energy storage device (C1); In the parallel circuit at second energy storage device (C2) place; Also be provided with the first Control of Voltage structure (U1) before and receive first switch element (Q1) of its control to control the break-make of this charging circuit at this second energy storage device (C2), when the output voltage (VCC) of just thinking first energy storage device (C1) was higher than the setting threshold of this first Control of Voltage structure (U1), first Control of Voltage structure (U1) conducting first switch element (Q1) charged to second energy storage device (C2).
2. illumination sensing device as claimed in claim 1 is characterized by described photoelectric conversion device (J1) and is at least two groups of parallelly connected state.
3. illumination sensing device as claimed in claim 1 is characterized by at least two group capacitor type structures of described second energy storage device (C2) for parallel connection.
4. illumination sensing device as claimed in claim 1, the switch element (Q1) that it is characterized by in the parallel circuit at described second energy storage device (C2) place is MOSFET, positive-negative-positive triode or NPN type triode.
5. like the described illumination sensing device of claim 1 to 7, the capacity that it is characterized by first energy storage device (C1) in the energy storage power supply unit is >=470uF the capacity >=0.33F of second energy storage device (C2).
6. like the described illumination sensing device of one of claim 1 to 5; It is characterized by photosensitive structure (D5) and subsequent computing amplifying unit (U3) that described illumination sensing unit comprises sensitive context illumination, its output terminal (AD_0) is connected with described wireless transmitting unit.
7. illumination sensing device as claimed in claim 6, the input end that it is characterized by said photosensitive structure (D5) is connected with the divider resistance choice structure that is used to be provided with the sensing threshold value.
8. illumination sensing device as claimed in claim 7 is characterized by described divider resistance choice structure for dialling the electric resistance structure or the continuously adjustable swept resistance structure of being regulated by driving switch (S1).
9. illumination sensing device as claimed in claim 6 is characterized by the output terminal of illumination sensing unit and is connected with wireless transmit chip (U7) the corresponding input end mouth that has emitting antenna in the wireless transmitting unit.
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| CN2011102990040A CN102410876A (en) | 2011-09-29 | 2011-09-29 | Illumination sensing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102990040A CN102410876A (en) | 2011-09-29 | 2011-09-29 | Illumination sensing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112654112A (en) * | 2020-12-04 | 2021-04-13 | 深圳市道和实业有限公司 | LED control system capable of displaying in Internet of things |
| CN114008889A (en) * | 2021-06-18 | 2022-02-01 | 武汉领普科技有限公司 | Power supply circuit, sensing equipment and application thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2700971Y (en) * | 2004-03-19 | 2005-05-18 | 侯康 | Intelligent alarm lamp for gate burglarproofing |
| CN1905314A (en) * | 2005-07-05 | 2007-01-31 | Somfy两合公司 | Autonomous domestic management technique sensor-transmitter and its method of operation |
| TWI273756B (en) * | 2004-05-14 | 2007-02-11 | Nec Tokin Corp | Power source device and charge controlling method to be used in same |
| EP1928070A2 (en) * | 2006-11-30 | 2008-06-04 | Beijing Hi-Tech Wealth Investment & Development Co., Ltd. | Method for supplying power with light voltage battery, device and system thereof |
| CN101431246A (en) * | 2008-12-19 | 2009-05-13 | 北京理工大学 | Apparatus and method for improving output efficiency of low-power photovoltaic battery |
| JP2010218808A (en) * | 2009-03-16 | 2010-09-30 | L-Kougen Co Ltd | Solar battery lighting system |
| CN201726379U (en) * | 2010-05-13 | 2011-01-26 | 陈健 | Light controlled remote control switch |
| EP2365606A1 (en) * | 2010-03-11 | 2011-09-14 | Sanyo Electric Co. Ltd | A battery system |
| CN202267531U (en) * | 2011-09-29 | 2012-06-06 | 成都英泰力电子有限公司 | Illumination sensing device |
-
2011
- 2011-09-29 CN CN2011102990040A patent/CN102410876A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2700971Y (en) * | 2004-03-19 | 2005-05-18 | 侯康 | Intelligent alarm lamp for gate burglarproofing |
| TWI273756B (en) * | 2004-05-14 | 2007-02-11 | Nec Tokin Corp | Power source device and charge controlling method to be used in same |
| CN1905314A (en) * | 2005-07-05 | 2007-01-31 | Somfy两合公司 | Autonomous domestic management technique sensor-transmitter and its method of operation |
| EP1928070A2 (en) * | 2006-11-30 | 2008-06-04 | Beijing Hi-Tech Wealth Investment & Development Co., Ltd. | Method for supplying power with light voltage battery, device and system thereof |
| CN101431246A (en) * | 2008-12-19 | 2009-05-13 | 北京理工大学 | Apparatus and method for improving output efficiency of low-power photovoltaic battery |
| JP2010218808A (en) * | 2009-03-16 | 2010-09-30 | L-Kougen Co Ltd | Solar battery lighting system |
| EP2365606A1 (en) * | 2010-03-11 | 2011-09-14 | Sanyo Electric Co. Ltd | A battery system |
| CN201726379U (en) * | 2010-05-13 | 2011-01-26 | 陈健 | Light controlled remote control switch |
| CN202267531U (en) * | 2011-09-29 | 2012-06-06 | 成都英泰力电子有限公司 | Illumination sensing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112654112A (en) * | 2020-12-04 | 2021-04-13 | 深圳市道和实业有限公司 | LED control system capable of displaying in Internet of things |
| CN112654112B (en) * | 2020-12-04 | 2023-04-11 | 广州震雄装饰工程有限公司 | LED control system capable of displaying in Internet of things |
| CN114008889A (en) * | 2021-06-18 | 2022-02-01 | 武汉领普科技有限公司 | Power supply circuit, sensing equipment and application thereof |
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Application publication date: 20120411 |