CN201477198U - Long-time synchronous online photoelectric detection device for large amount of LED lamps - Google Patents
Long-time synchronous online photoelectric detection device for large amount of LED lamps Download PDFInfo
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- CN201477198U CN201477198U CN2009202078645U CN200920207864U CN201477198U CN 201477198 U CN201477198 U CN 201477198U CN 2009202078645 U CN2009202078645 U CN 2009202078645U CN 200920207864 U CN200920207864 U CN 200920207864U CN 201477198 U CN201477198 U CN 201477198U
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Abstract
A long-time synchronous online photoelectric detection device for large amount of LED lamps belongs to test field and comprises a plurality of photoelectric detector groups and a set of terminal computer installed with test software, the signal output end of each photoelectric detector group is respectively and sequentially provided with a preamplifier, an A/D conversion module and wireless transmitter modules with address coding correspondingly; the signal input end of the terminal computer is provided with a wireless data receiver module controlled by a singlechip, and the wireless data receiver module is connected with the terminal computer through a serial data interface; the wireless data receiver module and multiple wireless transmitter modules construct a short range wireless signal transmission unit with multiple-to-one mode and star network topology structure. The long-time synchronous online photoelectric detection device avoids the defects of the wired signal transmission mode, has convenient use, reliable operation and ensures the whole system to stably operate for long time, is applicable to long-time attenuation online test of large amount of LED lamps and the test field of common lamps.
Description
Technical field
The utility model belongs to field tests, relates in particular to a kind of proving installation that light fixture is tested serviceable life of being used for.
Background technology
In recent years, raising along with people's living standard, the development of city lighting engineering and freeway net, requirement to room lighting, road lighting and building's Floodlighting improves day by day, therefore increasing to the demand of various LED lighting sources and LED light fixture, require also to improve constantly, also promoted the develop rapidly of LED lighting industry simultaneously, various efficient, energy-conservation LED lights also constantly occur.
The quality of estimating any LED light fixture how, key is to see how it can reach which type of illuminating effect and its actual life in actual applications.
Have only and produce the good illumination effect in actual applications and have the light fixture that is only high-quality than the LED light fixture of long life.
The LED device is the new light sources of efficient and long life, and the general life-span was several ten thousand hours.
LED lamp life test, the same with other light source, two kinds of the general test methods of the method for testing of accelerated deterioration and not accelerated deterioration are also arranged.Accelerated ageing test method, the theory and the test equivalence that need acceleration mechanism prove; Be not accelerated deterioration test the most intuitively.
According to " national semiconductor lighting engineering developme and the recommendatory technical manual LB/T001-2008 of industry alliance " (playing enforcement on July 1st, 2008 issue, on September 1st, 2008), the lifetime measurement of LED street lamp does not adopt the method for testing of accelerated deterioration.
No matter adopt which kind of method of testing, the durability test of LED light fixture needs that all light fixture is carried out long online energising and " lights " test, and this is a test job very consuming time.
Existing light fixture test macro, " light " when test carrying out online energising, normally carry out one to one, promptly a cover light fixture corresponding overlaps test macro, because in long " lighting " test process, the sample frequency of data is minute/time or tens of minutes/times, pretends to be the important component part in the test macro-be mounted with the microsystem of test/logging software, and the utilization factor under this test mode is low-down.
Carry out big quantity simultaneously (for the inspection center of a national level for ease of test macro; usually can be tens cover or covers up to a hundred), the life test evaluation of the LED light fixture of long-time (being at least usually thousands of hours); be the centralized management of its full test process of needs and focusing on of test data, need to adopt big quantity even the simultaneously online Photoelectric Detection new method of a hundreds of LED light fixture.
In order to give full play to the effect of the microsystem that is mounted with test/logging software, adopting optical detection device/detector is that the LED lamp life detection system of detection resources (is applied for before this as the applicant, application number is CN200910054184.9, name is called " a kind of LED light fixture method for testing lumen efficiency " and application number is CN200920077654.9, name is called disclosed method of testing/device in " a kind of LED light fixture luminous efficiency proving installation ") in, adopting many-to-one system architecture (promptly many cover light fixture photodetector detection resources and attached signal transformation/transmission units thereof, a corresponding cover test/record microsystem) is that ten minutes is necessary and feasible; The travelling speed and the data-handling capacity of microcomputer make a cover test/record microsystem can be competent at/tackle the data processing and the writing task in up to a hundred/cover Photoelectric Detection source fully simultaneously now.
In technique scheme, transmit to the signal the test/record microsystem from many covers light fixture photodetector detection resources at the scene, if adopt wire transmission mode, can bring a large amount of wiring, connect up, lay and converge problems such as setting up of wire casing, if certain bar circuit goes wrong, searching/differentiating of its circuit is very difficult, brings the difficulty that can't overcome can for the enforcement of whole technical proposal.
The utility model content
Technical problem to be solved in the utility model provides a kind of large quantity of LED lamps online photoelectric detection system simultaneously when long, it adopts the short-range wireless signal transmission form that has geocoding, make that many-to-one LED lamp life test system structure is easy to realize, many drawbacks of wire signal transmission mode have been avoided, the on-line testing of optical attenuation in the time of can implementing large quantity of LED lamps length simultaneously, can be to the centralized management of large quantity of LED lamps life test and focusing on of test data, its a whole set of test macro takes up room littler, need not the existing building structure is changed/handles or lays remittance wire casing/cable testing bridge, and be convenient to more safeguard.
The technical solution of the utility model is: online photoelectric detection system of while when providing a kind of large quantity of LED lamps long, comprise the terminal microsystem that is mounted with test/logging software with corresponding a plurality of photodetector groups of tested LED light fixture quantity and a cover, it is characterized in that: at the signal output part of described each photodetector group, the corresponding successively respectively wireless transmitter module that prime amplifier, A/D conversion module is set and has geocoding; At the signal input part of described terminal microsystem, be provided with one and be subjected to monolithic processor controlled wireless data receiver module; Described wireless data receiver module is connected with the terminal microsystem through serial data interface; Described wireless data receiver module and a plurality of wireless transmitter module formation are many-to-one, the short-range wireless signal transmission unit of hub-and-spoke network topology structure.
Its described short-range wireless signal transmission unit is the short-range wireless data transmission/receiving circuit based on IEEE 802.15.4 standard communications protocol.
Its described short-range wireless signal transmission unit is ZigBee wireless data transmission circuit or wireless singlechip circuit.
Its described single-chip microcomputer is the ARM microcontroller circuit.
Described ARM microcontroller circuit and ZigBee module have constituted a wireless serial hub, and the wireless data signal that a plurality of wireless data transmission circuit are launched with geocoding chronologically adopts the circuit topological structure of star-like wireless network to send into the terminal microcomputer through serial ports to carry out corresponding data acquisition, processing and demonstration or output.
Its described photodetector group comprises neutral variable optical attenuator, luminosity function match filter, photodetector, substrate that sets gradually and the SMD temperature sensor that is arranged at substrate back.
Compared with the prior art, the utility model has the advantages that:
1. adopt the transmission of wireless signals mode that has geocoding, make that many-to-one LED lamp life test system structure is easy to realize, avoided many drawbacks of wire signal transmission mode;
2. adopt ZigBee wireless data transmission circuits built short-range wireless signal transmission unit, simplified the circuit system structure greatly, reduced the quantity of peripheral circuit element, easy to use, reliable operation, cheap, for the long-time steady operation of total system provides reliable assurance;
3. adopt many-to-one system topology, given full play to the work efficiency of terminal microsystem, satisfy test macro carries out long-time, continuous life-span/optical attenuation index test and appraisal simultaneously to the LED light fixture of big quantity needs, filled up the blank of existing LED light fixture method of testing and proving installation.
Description of drawings
Fig. 1 is the block diagram of system of this device;
Fig. 2 is the structural representation of photodetector;
Fig. 3 is the wiring diagram of ZigBee module embodiment;
Fig. 4 is the netinit FB(flow block).
1 is tested LED light fixture among the figure, and 2 is the photodetector group, and 3 is prime amplifier, 4 is the A/D conversion module, and 5 is wireless transmitter module, and 6 is emitting antenna, 7 is receiving antenna, and 8 is wireless receiving module, and 9 is single-chip microcomputer, 10 is the terminal microcomputer, 31 is neutral variable optical attenuator, and 32 is the luminosity function match filter, and 33 is photodetector, 34 is substrate, and 35 is SMD temperature sensor.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Among Fig. 1, the pick-up unit in the technical program comprises tested LED light fixture 1 and the corresponding with it photodetector group 2 that is provided with, and the quantity of its photodetector group is corresponding with the quantity of tested LED light fixture.
In other words, each tested LED light fixture all has a photodetector group corresponding with it; When test macro carries out the life test evaluation of big quantity, long LED light fixture simultaneously, having tens even a hundreds of LED light fixture carries out online energising simultaneously and " lights " test, then this moment the corresponding photo detector group also can be provided with tens even hundreds of corresponding with it, the implication of " big quantity " that Here it is preamble is alleged.
At the signal output part of each photodetector group 2, the corresponding successively wireless transmitter module 5 that prime amplifier 3, A/D conversion module 4 is set and has geocoding, its wireless signal of launching is by emitting antenna 6 transmission.
A wireless data receiver module 8 that is subjected to single-chip microcomputer 9 controls is set, and it receives the wireless data signal of each wireless transmitter module emission by receiving antenna 7.
Wireless data receiver module 8 is connected with terminal microsystem 10 through serial data interface.
Wireless data receiver module and a plurality of wireless transmitter module formation are many-to-one, the short-range wireless signal transmission unit of hub-and-spoke network topology structure.
Its single-chip microcomputer receives 254 data sets that wireless transmitter module transmitted with different geocodings simultaneously from wireless signal transmitting unit, make the terminal microsystem discern the data of being transmitted by the geocoding of determining, automatically patrol and examine and gather the pairing light intensity delta data of each tested LED light fixture in real time, to each tested LED light fixture or optional tested LED light fixture, implement test and management and intensive data and handle respectively.
Aforesaid single-chip microcomputer can adopt the ARM microcontroller circuit.
Aforesaid short-range wireless data transmission/receiving circuit can adopt the ZigBee modular circuit based on IEEE 802.15.4 standard communications protocol.
During practical application, its short-range wireless signal transmission unit is preferably ZigBee wireless data transmission circuit or wireless singlechip circuit.
ZigbBee is a kind of emerging short distance, low rate, low power consumption wireless network technology, and it is a kind of technology motion between radio mark technology and bluetooth.It is known as " HomeRF Lite " or " FireFly " wireless technology before this, is mainly used near radio and connects.
The Zigbee technology is a kind of short-distance wireless communication technology with uniform technical standards.Its Physical layer and media access control layer agreement are the IEEE802.15.4 consensus standard, and network layer and safe floor are formulated by Zigbee alliance, and the exploitation of application layer should develop and utilize it according to user's oneself needs.
On wireless communication technology, adopt the multiple carrier channel of exempting to conflict to insert (CSMA-CA) mode, avoided the conflict between the radio carrier effectively.In addition, for guaranteeing the reliability of transmission data, set up complete acknowledge communication agreement.
Zigbee equipment is low power consuming devices, its emission output power is 0～3.6dBm, communication distance is generally 30～70m, has energy measuring and link-quality indication ability, according to these testing results, equipment can be adjusted emissive power automatically, under the condition that guarantees communication link quality, and minimally consumer device energy.
On networking performance, Zigbee can be configured to Star Network or point-to-point peer-to-peer network; In the wireless network that each Zigbee forms, the link address sign indicating number is divided into 16bit short address sign indicating number or the long address code of 64bit, has bigger network capacity.
In fact, the wireless data receiver module of the technical program is to utilize ARM microprocessor and ZigBee module to constitute a wireless serial hub, and the data-signal that a plurality of wireless data transmission circuit are launched with geocoding chronologically adopts the circuit topological structure of star-like wireless network to send into the terminal microcomputer through serial ports to carry out corresponding data acquisition, processing and demonstration or output.
In Fig. 2, each photodetector comprises neutral variable optical attenuator 31, luminosity function match filter 32, photodetector 33, substrate 34 that sets gradually and the SMD temperature sensor 35 that is arranged at substrate back.
About photodetector, but REFERENCE TO RELATED people is applied for before this, application number is CN 200910054184.9, name is called " a kind of LED light fixture method for testing lumen efficiency " and application number is CN 200920077654.9, name is called disclosed related content in " a kind of LED light fixture luminous efficiency proving installation ", no longer narrates at this.
In Fig. 3, provided the application circuit figure of ZigBee module CC2430, as seen it has considerably less peripheral cell and connection line.
Its chips CC2430 has only provided used pin.Use a unbalanced antennas A, connecting balun transformer makes receptivity better, balun transformer in the circuit is made up of capacitor C 4 and inductance L 3, L1, L2 and a PCB microwave transmission line, and total satisfies the requirement of RF I/O build-out resistor (50 Ω).
Its inner T/R switched circuit is finished the exchange between LNA and the PA.
R1 and R2 are biasing resistor, and resistance R 2 is mainly used to provide a suitable working current for crystal oscillator XTAL.Constitute frequency (for example, crystal oscillating circuit 32MHz) with 1 quartz resonator XTAL1 and 2 capacitor C 5 and C6; Constitute another frequency (for example, crystal oscillating circuit 32.768kHz) with 1 quartz resonator XTAL2 and 2 capacitor C 2 and C3.
C1 and C7 are decoupling capacitances, are used for power filter, to improve the stability of chip operation.
The ZigBee module is the module of preparing at the product development of piece speed, efficient, stable application, it with the ZigBee chip must be external device, and complex process such as high frequency cabling stashes, the user does not need to understand radio frequency knowledge, directly use to get final product, reduced the hardware design difficulty of ZigBee network greatly according to the form of common chip.
About the ZigbBee module, the commercially available prod of a lot of maturations has been arranged now, common Zigbee transmission of wireless signals platform all is made up of one 8 or 16 s' single-chip microcomputer and Zigbee radio frequency chip.Along with the development of chip design, wireless singlechip has appearred at present, and be about to processor module and radio-frequency module and be integrated in the same chip.The CC2430 of Ti-Chipcon company is exactly so, and CC2430 is integrated Zigbee radio-frequency front-end, ROM and 8051 microcontrollers are in a chip, and size only is 7mm * 7mm, so just make device integration height, peripheral components seldom, profile is very little; Under reception and emission mode, current loss is lower than 27mA or 25mA respectively, and supports can reduce power consumption widely by four kinds of dormancy mechanisms; CC2430 is operated in the free frequency range of 2.4GHz, and chip price is cheaper, and use cost is very low, so CC2430 meets the designing requirement of Zigbee wireless data signal transmission network platform very much.
In addition, ZigBee/802.15.4RF module XBee of U.S. MaxStream company (indoor emission/receiving range is 30 meters) or XBee-PRO (indoor emission/receiving range is 100 meters), then has the integrated degree of more increasing, set up RF communication and need not any configuration, its need are plugged antenna, energized, simply data are input to a module, data just can be sent to the other end of wireless connections automatically, also can use simple AT order to carry out advanced configuration, simplify the structure workload of hardware greatly.
When emission/reception communication distance is nearer, also can select for use the low-cost low energy consumption RF such as CC1100 of Chipncon AS company to receive/send out chip.
Concrete principle of work and application circuit about various ZigBee modules, can be with reference to the product information of the production firm of each chip/module, it also can provide the standard application circuit of chip and the preferred parameter of respective element separately, so its further information is no longer narrated at this.
Among Fig. 4, provided the netinit flow process of wireless communication networks.
Practical application at this system, network topology adopts typical hub-and-spoke configuration: a Centroid (being aforesaid wireless data receiver module) is served as network coordinator, the wireless transmitter module of other each check points is equivalent to the RFD node in the wireless sensor network, only communicates by letter with Centroid.
About the concrete structure of ZigBee wireless network module, can (www.embedcontrol.com) go up related content in the ZigBee module ZICM2410 application and development guide with reference to " embedded industry control net ", no longer narrate at this.
According to " national semiconductor lighting engineering developme and the recommendatory technical manual LB/T001-2008 of industry alliance " (playing enforcement in issue on July 1st, 2008, on September 1st, 2008), the durability test of each LED light fixture: initial value was measured 1000 hours, was more than 41 days; The test that continues 5000 hours is more than 208 days.
Therefore, each street lamp, follow-on test (lifetime measurement) work of 6000 hours of will carry out at least (nearly 250 days), this has also embodied the implication of previously described " during length " or " for a long time ".
According to the technical manual that " alliance " recommended, this life experiment also needs " measuring a plurality of LED street lamps of the same type to obtain the mean lifetime of LED street lamp ".Therefore, the test job of each kind LED street lamp is actually test job very consuming time, that expend.
The utility model adopts photodetector group and the wireless data transmission emitter suitable with tested LED light fixture quantity, respectively the photooptical data of LED light fixture and the temperature data of photodetector self is emitted to wireless receiving system.The wireless data receiving system can receive hundreds of large quantity of LED lamps output intensity delta datas and each photodetector self temperature data simultaneously, and by serial ports entry terminal computing machine.
Specifically, the photoelectric detector group directly receives the light output of each LED light fixture and makes its electric signalization; The output signal of photodetector and temperature sensor realizes Analog signals'digital output respectively through prime amplifier and A/D module; Digital signal is sent into wireless transmitter module, and wireless transmitter module is emitted to the wireless data transmission receiving system with photooptical data and temperature data respectively with geocoding chronologically.
Wireless data transmission receiver module in the wireless data receiving system to the data-signal that is received, carries out wireless network and concentrates collection, and by serial ports input computing machine.Its wireless data receiving system can be implemented stable patrol and examine automatically, receive simultaneously hundreds of large quantity of LED lamps output intensity delta datas and each photodetector temperature data and entry terminal computing machine.
Adopt in the online photodetector system of LED light fixture that the ZigBee module construction is many-to-one, the short-range wireless signal transmission unit of hub-and-spoke network topology structure, its advantage is fairly obvious:
1, power saving: the support of use powered battery reaches the service time (according to transmitting power and frequency) about 6 months to 5 years;
2, reliable: adopted collision-avoidance mechanism, simultaneously for to need the communication service of fixed-bandwidth to reserve dedicated time slot, competition and conflict when having avoided sending data; The function that has the automatic dynamic networking between the node module, the information mode by automatic route in whole Zigbee network is transmitted, thereby has guaranteed the reliability of communication;
3, time delay is short: for delay sensitive should be used as optimization, communication delay and the time delay that activates from resting state are all very short;
4, network capacity is big: can support to reach 65000 nodes;
5, safety: ZigBee provides data integrity inspection and authentication functions, and AES adopts general AES-128;
6, high security: 64 factory numbers are encrypted with support AES-128.
Adopt the application's technical scheme, can implement simultaneously the on-line testing of the long-time optical attenuation of large quantity of LED lamps, can realize the centralized management of large quantity of LED lamps life test and focusing on of test data. Use this checkout gear, also can with LED lamp life test data, at any time send to the client of censorship by wireless or cable network. The client of censorship can be at any time finds their censorship light fixture in the online monitoring data of central laboratory and dynamically, is convenient to both sides and in time grasps test situation at network.
The utility model not only is confined to be applied in the on-line testing of large quantity of LED lamps optical attenuation when long, also can be widely used in principle the field tests of general light fixture, spreads to easily the evaluation experimental chamber.
Claims (6)
1. online photoelectric detection system of while when a large quantity of LED lamps is long comprises the terminal microsystem that is mounted with test/logging software with corresponding a plurality of photodetector groups of tested LED light fixture quantity and a cover, it is characterized in that:
At the signal output part of described each photodetector group, the corresponding successively respectively wireless transmitter module that prime amplifier, A/D conversion module is set and has geocoding;
At the signal input part of described terminal microsystem, be provided with one and be subjected to monolithic processor controlled wireless data receiver module;
Described wireless data receiver module is connected with the terminal microsystem through serial data interface;
Described wireless data receiver module and a plurality of wireless transmitter module formation are many-to-one, the short-range wireless signal transmission unit of hub-and-spoke network topology structure.
2. online photoelectric detection system of while when growing according to the described large quantity of LED lamps of claim 1 is characterized in that described short-range wireless signal transmission unit is the short-range wireless data transmission/receiving circuit based on IEEE 802.15.4 standard communications protocol.
3. online photoelectric detection system of while when growing according to the described large quantity of LED lamps of claim 1 is characterized in that described short-range wireless signal transmission unit is ZigBee wireless data transmission circuit or wireless singlechip circuit.
4. online photoelectric detection system of while when growing according to the described large quantity of LED lamps of claim 1 is characterized in that described single-chip microcomputer is the ARM microcontroller circuit.
5. online photoelectric detection system of while when growing according to claim 3 or 4 described large quantity of LED lamps, it is characterized in that described ARM microcontroller circuit and ZigBee module have constituted a wireless serial hub, the wireless data signal that a plurality of wireless data transmission circuit are launched with geocoding chronologically adopts the circuit topological structure of star-like wireless network to send into the terminal microcomputer through serial ports to carry out corresponding data acquisition, processing and demonstration or output.
6. online photoelectric detection system of while when growing according to the described large quantity of LED lamps of claim 1 is characterized in that described photodetector group comprises neutral variable optical attenuator, luminosity function match filter, photodetector, substrate that sets gradually and the SMD temperature sensor that is arranged at substrate back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202078645U CN201477198U (en) | 2009-08-14 | 2009-08-14 | Long-time synchronous online photoelectric detection device for large amount of LED lamps |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009202078645U CN201477198U (en) | 2009-08-14 | 2009-08-14 | Long-time synchronous online photoelectric detection device for large amount of LED lamps |
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| CN201477198U true CN201477198U (en) | 2010-05-19 |
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| CN2009202078645U Expired - Lifetime CN201477198U (en) | 2009-08-14 | 2009-08-14 | Long-time synchronous online photoelectric detection device for large amount of LED lamps |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625400B (en) * | 2009-08-14 | 2011-11-30 | 上海半导体照明工程技术研究中心 | Long-time simultaneous online photoelectric detection method of large quantity of LED lamps and device thereof |
| CN103323104A (en) * | 2012-03-23 | 2013-09-25 | 台湾超微光学股份有限公司 | Optical measurement system, bearing structure and optical measurement method |
| CN104931813A (en) * | 2015-05-19 | 2015-09-23 | 深圳市共济科技有限公司 | Method and system for detecting states of machine room server LED lamps |
-
2009
- 2009-08-14 CN CN2009202078645U patent/CN201477198U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625400B (en) * | 2009-08-14 | 2011-11-30 | 上海半导体照明工程技术研究中心 | Long-time simultaneous online photoelectric detection method of large quantity of LED lamps and device thereof |
| CN103323104A (en) * | 2012-03-23 | 2013-09-25 | 台湾超微光学股份有限公司 | Optical measurement system, bearing structure and optical measurement method |
| CN103323104B (en) * | 2012-03-23 | 2016-04-27 | 台湾超微光学股份有限公司 | Optical measurement system, bearing structure and optical measurement method |
| CN104931813A (en) * | 2015-05-19 | 2015-09-23 | 深圳市共济科技有限公司 | Method and system for detecting states of machine room server LED lamps |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100519 Effective date of abandoning: 20090814 |