CN103837232A - Illuminance test circuit for LED street lamp test system - Google Patents
Illuminance test circuit for LED street lamp test system Download PDFInfo
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- CN103837232A CN103837232A CN201210487821.3A CN201210487821A CN103837232A CN 103837232 A CN103837232 A CN 103837232A CN 201210487821 A CN201210487821 A CN 201210487821A CN 103837232 A CN103837232 A CN 103837232A
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- illuminance
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Abstract
The invention discloses an illuminance test circuit for an LED street lamp test system. The illuminance test circuit comprises an optical detector, a pre-amplification circuit, a filter circuit, an A/D conversion circuit, a storage circuit, a processor which calculates illuminance of a tested LED street lamp based on signals detected by the optical detector, a display unit which is used for displaying the illuminance of the LED street lamp, a power source which is connected with the processor, a USB interface which is connected with the processor and is used for connecting with other peripheral equipment for auxiliary power supply when the electric quantity of the power source is insufficient, a timing circuit which is connected with the processor, a display driver circuit which is connected with the A/D conversion circuit and the display unit, a switching circuit which is connected with the processor and the optical detector, and a fault alarming circuit which is connected with the processor. The illuminance test circuit is simple in structure, reasonable in design, and convenient to wire, capable of measuring and displaying the illuminance of the LED street lamp in real time during working, high in reliability, sensitive in reaction, and high in test precision.
Description
Technical field
The present invention relates to a kind of test circuit, especially relate to a kind of LED street lamp test macro illuminance test circuit.
Background technology
Along with LED is significantly in the lifting of lighting field application, LED enters rapidly illumination market, owing to having and the distinct space luminescence characteristic of traditional lighting light source, the method that is applicable to conventional light source measurement can not meet the quality control to LED illuminating product, for the requirement of LED illuminating product, constantly put into effect relevant regulations.And the popularization that Chinese Government throws light on for the LED of energy-conserving and environment-protective, the enforcement of ten ten thousand plans in city, makes various places detect and also have very large attention LED street lamp project photochromism.At present, compared with large LED bulb, be different from single LEDs for whole LED light fixture or light-emitting area, its area is larger, and light emission direction is strong, and in actual illumination environment, we need all test electrical property, optical property etc.Measurement for LED lamp illuminance aspect optics is very important, in whole test macro, need to have for this reason one simple in structure, and highly sensitive test circuit carries out illuminance test.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of LED street lamp test macro illuminance test circuit is provided, it is simple in structure and use easy to operately, and work can be measured in real time and show LED street lamp illuminance.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of LED street lamp test macro illuminance test circuit, is characterized in that: comprise the photo-detector for detection of tested LED street lamp light, the pre-amplification circuit joining with photo-detector, the filtering circuit joining with pre-amplification circuit, the simulating signal of filtering circuit output is converted to the A/D change-over circuit of digital signal, storage inside has LED illuminance to calculate the memory circuit of program, the calculated signals detecting according to photo-detector goes out the processor of tested LED street lamp illuminance, for showing the display unit of described LED street lamp illuminance, the power supply joining with processor, join with processor and for be connected the USB interface of carrying out auxiliary power supply with other external unit in the time that electric quantity of power supply is not enough, the timing circuit joining with processor, the display driver circuit joining with A/D change-over circuit and display unit respectively, the on-off circuit joining with processor and photo-detector respectively and the failure alarm circuit joining with processor, the driver that described display driver circuit comprises code translator and joins with code translator, described A/D change-over circuit and filtering circuit join, described memory circuit and display unit all join with processor, and described code translator and processor join, and described driver and display unit join.
Above-mentioned a kind of LED street lamp test macro illuminance test circuit, is characterized in that: also comprise the RS232 interface for joining with PC, described RS232 interface and processor join.
Above-mentioned a kind of LED street lamp test macro illuminance test circuit, is characterized in that: described photo-detector is silicon photocell.
Above-mentioned a kind of LED street lamp test macro illuminance test circuit, is characterized in that: described processor is single-chip microcomputer.
Above-mentioned a kind of LED street lamp test macro illuminance test circuit, is characterized in that: described display unit is liquid crystal display.
The present invention compared with prior art has the following advantages: simple in structure, reasonable in design, easy-to-connect, can measure and show the illuminance of LED street lamp in real time when work, and reliability is high, be quick on the draw, measuring accuracy is high.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Description of reference numerals:
1-photo-detector; 2-pre-amplification circuit; 3-filtering circuit;
4-A/D change-over circuit; 5-memory circuit; 6-processor;
7-display unit; 8-power supply; 9-display driver circuit;
9-1-code translator; 9-2-driver; 10-on-off circuit;
11-failure alarm circuit; 12-USB interface; 13-timing circuit;
14-RS232 interface.
Embodiment
As shown in Figure 1, the present invention includes the photo-detector 1 for detection of tested LED street lamp light, the pre-amplification circuit 2 joining with photo-detector 1, the filtering circuit 3 joining with pre-amplification circuit 2, the simulating signal that filtering circuit 3 is exported is converted to the A/D change-over circuit 4 of digital signal, storage inside has LED illuminance to calculate the memory circuit 5 of program, the calculated signals detecting according to photo-detector 1 goes out the processor 6 of tested LED street lamp illuminance, for showing the display unit 7 of described LED street lamp illuminance, the power supply 8 joining with processor 6, join with processor 6 and for being connected when power supply 8 electric weight the usb 12 that carries out auxiliary power supply when not enough with other external unit, the timing circuit 13 joining with processor 6, the display driver circuit 9 joining with A/D change-over circuit 4 and display unit 7 respectively, the on-off circuit 10 joining with processor 6 and photo-detector 1 respectively and the failure alarm circuit 11 joining with processor 6, the driver 9-2 that described display driver circuit 9 comprises code translator 9-1 and joins with code translator 9-1, described A/D change-over circuit 4 joins with filtering circuit 3, described memory circuit 5 and display unit 7 all join with processor 6, described code translator 9-1 and processor 6 join, and described driver 9-2 and display unit 7 join.
In the present embodiment, also comprise the RS232 interface 14 for joining with PC, described RS232 interface 14 joins with processor 6.
In the present embodiment, described photo-detector 1 is silicon photocell.
In the present embodiment, described processor 6 is single-chip microcomputer.
In the present embodiment, described display unit 7 is liquid crystal display.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (5)
1. a LED street lamp test macro illuminance test circuit, it is characterized in that: comprise the photo-detector (1) for detection of tested LED street lamp light, the pre-amplification circuit (2) joining with photo-detector (1), the filtering circuit (3) joining with pre-amplification circuit (2), the simulating signal of filtering circuit (3) output is converted to the A/D change-over circuit (4) of digital signal, storage inside has LED illuminance to calculate the memory circuit (5) of program, the calculated signals detecting according to photo-detector (1) goes out the processor (6) of tested LED street lamp illuminance, for showing the display unit (7) of described LED street lamp illuminance, the power supply (8) joining with processor (6), join with processor (6) and for be connected the USB interface (12) of carrying out auxiliary power supply with other external unit in the time that power supply (8) electric weight is not enough, the timing circuit (13) joining with processor (6), the display driver circuit (9) joining with A/D change-over circuit (4) and display unit (7) respectively, the on-off circuit (10) joining with processor (6) and photo-detector (1) respectively and the failure alarm circuit (11) joining with processor (6), the driver (9-2) that described display driver circuit (9) comprises code translator (9-1) and joins with code translator (9-1), described A/D change-over circuit (4) joins with filtering circuit (3), described memory circuit (5) and display unit (7) all join with processor (6), described code translator (9-1) joins with processor (6), and described driver (9-2) joins with display unit (7).
2. according to a kind of LED street lamp test macro illuminance test circuit claimed in claim 1, it is characterized in that: also comprise the RS232 interface (14) for joining with PC, described RS 232 interfaces (14) join with processor (6).
3. according to a kind of LED street lamp test macro illuminance test circuit described in claim 1 or 2, it is characterized in that: described photo-detector (1) is silicon photocell.
4. according to a kind of LED street lamp test macro illuminance test circuit described in claim 1 or 2, it is characterized in that: described processor (6) is single-chip microcomputer.
5. according to a kind of LED street lamp test macro illuminance test circuit described in claim 1 or 2, it is characterized in that: described display unit (7) is liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210487821.3A CN103837232A (en) | 2012-11-25 | 2012-11-25 | Illuminance test circuit for LED street lamp test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210487821.3A CN103837232A (en) | 2012-11-25 | 2012-11-25 | Illuminance test circuit for LED street lamp test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103837232A true CN103837232A (en) | 2014-06-04 |
Family
ID=50800955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210487821.3A Pending CN103837232A (en) | 2012-11-25 | 2012-11-25 | Illuminance test circuit for LED street lamp test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103837232A (en) |
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2012
- 2012-11-25 CN CN201210487821.3A patent/CN103837232A/en active Pending
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |