CN103995225A - LED failure detection system - Google Patents
LED failure detection system Download PDFInfo
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- CN103995225A CN103995225A CN201410156808.9A CN201410156808A CN103995225A CN 103995225 A CN103995225 A CN 103995225A CN 201410156808 A CN201410156808 A CN 201410156808A CN 103995225 A CN103995225 A CN 103995225A
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- led lamp
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Abstract
Disclosed is an LED failure detection system. The LED failure detection system comprises a power module, a switch unit, an LED lamp set, a voltage detection unit, a control unit and an output filtering unit. The power module is respectively connected with the switch unit, the LED lamp set, the voltage detection unit, the control unit and the output filtering unit through a voltage stabilization unit, the output end of the output filtering unit is connected with the input end of the control unit, the output end of the control unit is connected with the input end of the switch unit, the first output end of the switch unit is connected with the LED lamp set, the second output end of the switch unit is connected with the output filtering unit, and the LED lamp set is connected with the control unit through the voltage detection unit. The LED failure detection system can effectively perform LED failure detection on an LED and can ensure that the failure number of LEDs in an LED array can be effectively counted no matter the LEDs are at open circuit failure states or at short circuit failure states.
Description
Technical field
The present invention relates to LED technical field, be specially a kind of LED failure detection system.
Background technology
Along with the develop rapidly of semiconductor technology, light emitting diode (LED) has been widely used in the products such as illumination, luminescence display and indication.Due to light emitting diode, it generally adopts the mode of array to arrange in use, to reach good result of use.Concrete as signal light path, various advertising indicator boards etc.Due to long use, some light emitting diode in light emitting diode matrix there will be inefficacy to work, and affects like this result of use of whole light emitting diode matrix.For this situation, only have in the past integral replacing light emitting diode matrix, this will increase cost greatly.
Summary of the invention
The object of the invention is, for for the problems referred to above, provides a kind of LED failure detection system.
In order to achieve the above object, the technical scheme that the present invention takes is:
A kind of LED failure detection system, comprise power module, switch element, LED lamp group, voltage detection unit, control module and output filtering unit, described power module is distinguished connecting valve unit, LED lamp group, voltage detection unit, control module and output filtering unit by voltage regulation unit, the input end of the output terminal connection control unit of described output filtering unit, the input end of the output terminal connecting valve unit of control module, the first output terminal of switch element connects LED lamp group, and the second output terminal connects output filtering unit; Described LED lamp group is by voltage detection unit connection control unit.
As preferably, described voltage detection unit comprises single-chip microcomputer, and described single-chip microcomputer is connected with control module.
The invention has the beneficial effects as follows: the present invention can effectively carry out LED failure detection, can guarantee no matter LED is in open failure state or in short-circuit failure state, can effectively count the inefficacy number of LED in light emitting diode matrix.
Accompanying drawing explanation
Fig. 1 is modular structure schematic block diagram of the present invention;
1-power module; 2-voltage regulation unit; 3-switch element; 4-LED lamp group; 5-voltage detection unit; 6-control module; 7-output filtering unit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is illustrated.
As shown in Figure 1, a kind of LED failure detection system, comprise power module, switch element, LED lamp group, voltage detection unit, control module and output filtering unit, described power module is distinguished connecting valve unit, LED lamp group, voltage detection unit, control module and output filtering unit by voltage regulation unit, the input end of the output terminal connection control unit of described output filtering unit, the input end of the output terminal connecting valve unit of control module, the first output terminal of switch element connects LED lamp group, and the second output terminal connects output filtering unit; Described LED lamp group is by voltage detection unit connection control unit.
Described voltage detection unit comprises single-chip microcomputer, and described single-chip microcomputer is connected with control module.
Such scheme is optimum implementation of the present invention, but is not changing under spiritual background of the present invention, and any improvement of doing, within all dropping on protection scope of the present invention.
Claims (2)
1. a LED failure detection system, comprise power module, switch element, LED lamp group, voltage detection unit, control module and output filtering unit, it is characterized in that, described power module is distinguished connecting valve unit, LED lamp group, voltage detection unit, control module and output filtering unit by voltage regulation unit, the input end of the output terminal connection control unit of described output filtering unit, the input end of the output terminal connecting valve unit of control module, the first output terminal of switch element connects LED lamp group, and the second output terminal connects output filtering unit; Described LED lamp group is by voltage detection unit connection control unit.
2. a kind of LED failure detection system according to claim 1, is characterized in that, described voltage detection unit comprises single-chip microcomputer, and described single-chip microcomputer is connected with control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156808.9A CN103995225A (en) | 2014-04-18 | 2014-04-18 | LED failure detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156808.9A CN103995225A (en) | 2014-04-18 | 2014-04-18 | LED failure detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103995225A true CN103995225A (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410156808.9A Pending CN103995225A (en) | 2014-04-18 | 2014-04-18 | LED failure detection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN103995225A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070086A (en) * | 2015-07-29 | 2015-11-18 | 杭州云正科技有限公司 | Intelligent traffic signal lamp fault detection and alarm system and method |
| CN109738774A (en) * | 2018-11-29 | 2019-05-10 | 西北工业大学 | A kind of diode detection instrument |
| CN109752990A (en) * | 2018-11-29 | 2019-05-14 | 西北工业大学 | A kind of control of multi-channel circuit on-off and voltage collecting device |
| CN110108973A (en) * | 2019-05-07 | 2019-08-09 | 武汉辉天同康科技有限公司 | A kind of bonder terminal test macro |
-
2014
- 2014-04-18 CN CN201410156808.9A patent/CN103995225A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070086A (en) * | 2015-07-29 | 2015-11-18 | 杭州云正科技有限公司 | Intelligent traffic signal lamp fault detection and alarm system and method |
| CN105070086B (en) * | 2015-07-29 | 2017-12-19 | 杭州云正科技有限公司 | A kind of traffic signal light fault Intelligent Measurement, warning system and method |
| CN109738774A (en) * | 2018-11-29 | 2019-05-10 | 西北工业大学 | A kind of diode detection instrument |
| CN109752990A (en) * | 2018-11-29 | 2019-05-14 | 西北工业大学 | A kind of control of multi-channel circuit on-off and voltage collecting device |
| CN109752990B (en) * | 2018-11-29 | 2023-12-05 | 西北工业大学 | Multichannel circuit on-off control and voltage acquisition device |
| CN110108973A (en) * | 2019-05-07 | 2019-08-09 | 武汉辉天同康科技有限公司 | A kind of bonder terminal test macro |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140820 |