CN201788258U - LED failure detecting system and dedicated chip thereof - Google Patents

LED failure detecting system and dedicated chip thereof Download PDF

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Publication number
CN201788258U
CN201788258U CN 201020110644 CN201020110644U CN201788258U CN 201788258 U CN201788258 U CN 201788258U CN 201020110644 CN201020110644 CN 201020110644 CN 201020110644 U CN201020110644 U CN 201020110644U CN 201788258 U CN201788258 U CN 201788258U
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CN
China
Prior art keywords
led
control system
end control
fault detection
test chip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201020110644
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Chinese (zh)
Inventor
杨伟艺
杨佰诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fushun Optoelectronics Technology Co., Ltd.
Original Assignee
Fujian Fushun Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Fujian Fushun Electronics Co Ltd filed Critical Fujian Fushun Electronics Co Ltd
Priority to CN 201020110644 priority Critical patent/CN201788258U/en
Application granted granted Critical
Publication of CN201788258U publication Critical patent/CN201788258U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an LED failure detecting system and a dedicated chip thereof. The LED failure detecting system comprises an upper-end control system, a lower-end control system and a power supply circuit, wherein the upper-end control system is in communication connection with the lower-end control system via a network or an optical fiber; and the upper-end control system comprises a PC (Personal Computer). The detecting system has the structural characteristics that the lower-end control system comprises an embedded master controller, a failure detecting and driving circuit of an LED module group, and a failure detecting plate, wherein the failure detecting and driving circuit of the LED module group comprises a dedicated detecting chip; the dedicated detecting chip is connected with an LED on the one hand, and is connected with the failure detecting plate on the other hand; and the failure detecting plate is connected with the embedded master controller. The LED failure in specific places indoors can be detected by a detecting personnel via the PC, so that not only can the working efficiency of a maintenance personnel be improved, but also the time of the maintenance personnel can be greatly saved, and the technical requirements to the maintenance personnel can be further lowered.

Description

A kind of LED fault detection system and special chip thereof
Technical field:
The utility model relates to a kind of LED fault detection system and special chip thereof, is applicable to the LED display fault detect.
Background technology:
At present, the application of LED is more and more wider, and the environment of use is also more and more abominable, and this just brings very big difficulty to breakdown maintenance, and is also higher to maintenance personal's technical requirement, therefore brings very big inconvenience aspect safeguarding.
Summary of the invention:
The purpose of this utility model is to provide a kind of high precision, high-accuracy, and a kind of LED fault detection system and the special chip thereof that can stay indoors and just can detect especially are applicable to the LED that is operated in the rugged surroundings.
The purpose of this utility model is achieved in that described a kind of LED fault detection system, comprise end control system and following end control system and power circuit, described upward end control system communicates with following end control system by network or by optical fiber and is connected; The described end control system of going up comprises PC, its design feature is described end control system down, the fault detect and driving circuit and the fault detection board that comprise embedded master control, led module group, the fault detect of described led module group and driving circuit comprise the dedicated test chip, the dedicated test chip is connected with LED on the one hand, the dedicated test chip is connected with fault detection board on the other hand, and fault detection board connects embedded master control.
The purpose of this utility model can also be achieved through the following technical solutions, and described a kind of LED fault detection system, its characteristics are that described testing circuit comprises dedicated test chip, resistance and 5V power supply, and the dedicated test chip is connected with the 5V power supply by resistance.Described a kind of LED fault detection system, its characteristics adopt electric current led drivers such as 16 bits for the dedicated test chip.Described a kind of LED fault detection system, its characteristics are that embedded master control is connected with temperature detecting module and ambient brightness detection module and control panel in the casing.
The special chip of described a kind of LED fault detection system, its characteristics are that special chip adopts electric current led drivers such as 16 bits.
Advantage of the present utility model: the testing staff can specifically be which place LED breaks down in indoor detection by PC, so not only can improve maintenance personal's work efficiency, and can reduce time of maintenance personal greatly, can also reduce maintenance personal's technical requirement, especially be suitable for the LED display of in rugged surroundings, to work.Electric current led drivers such as the utility model use MBI502716 bit have the error detection function as the dedicated test chip.This chip can be operated under the different mode of operations: general modfel is as current drivers such as LED; Be set at the error detection pattern, can the LED on each road be detected; The benefit of using this chip is that the switching of two kinds of patterns does not need to increase pin, as long as the sequence signal different to control pin input, and switching working mode easily just.
Description of drawings:
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is a FB(flow block) of the present utility model.
Fig. 3 is the connection layout of testing circuit.
Embodiment:
Below in conjunction with accompanying drawing the utility model is elaborated:
As Fig. 1, Fig. 2, shown in Figure 3, a kind of LED fault detection system described in the utility model comprises end control system and following end control system and power circuit, and power circuit provides the power supply supply of all chips and circuit.The described end control system of going up comprises PC, comprises also that wherein the detection software of prior art is communicated by letter with the networking; Described down end control system comprises fault detect and the driving circuit and the fault detection board of embedded master control, led module group.The chip of AT32UC3A model is adopted in described embedded master control, the fault detect of described led module group and driving circuit comprise that dedicated test chip, resistance and 5V power supply connect, the dedicated test chip can be selected MBI5027 (electric current led driver such as 16 bits), follow LED by the dedicated test chip, resistance and 5V power supply connect, then failure message is issued fault detection board, handle the back through fault detection board the result is fed back to embedded master control.The circuit that described fault detection board adopts ATMEGA64 model chip to form is as adopting existing circuit.Embedded master control also is connected with temperature detecting module and ambient brightness detection module and control panel in the casing.
Last end control system can or be followed down by optical fiber by network, and end control system communicates.
Detection method is: by the mode of operation of embedded master switching dedicated test chip, finish fault detect by testing circuit then.
The fault detect and the driving circuit of led module group are: with LED, resistance and 5V power supply connect, and then failure message are issued fault detection board by the dedicated test chip, handle the back through fault detection board the result is fed back to embedded master control.
Special chip is the dedicated test chip: what we used is the electric current led drivers such as 16 bits of MBI5027, and has the error detection function.This chip can be operated under the different mode of operations: general modfel is as current drivers such as LED; Be set at the error detection pattern, can the LED on each road be detected; The benefit of using this chip is that the switching of two kinds of patterns does not need to increase pin, as long as the sequence signal different to control pin input, and switching working mode easily just.
See Fig. 2, embedded master control starts the LED display part, and check-out console cycle detection dedicated test chip carries out coordinate scanning to the LED display ranks fluorescent tube of LED display part, and check-out console carries out waveform relatively.Waveform is normal, feeds back to embedded master control, and master control feeds back to PC; Waveform is undesired, carry out fault detect decoding analysis, calculation process, calculate the coordinate of wrong waveform, LED fluorescent tube fault coordinate data feeds back on the PC of control center by embedded master control transmission the most at last, be reacted on the visual interface by software, and at the corresponding failure logging of backstage automated back-up.
See among Fig. 3, the testing staff sends detection information to embedded master control by PC, and embedded master control receives order, embedded major control data is through the dedicated test chip of sheet choosing, make dedicated test chip switching working mode, enter the fault detect pattern, do not influence the normal demonstration of LED this moment, fault detection board is handled the information that the dedicated test chip sends then, data are fed back to embedded master control again to check-out console, so just can determine which fluorescent tube breaks down.
Sequence signal can make MBI5027 dedicated test chip enter the error detection pattern, and its LE positive pulse is any data of bolt-lock not; When dedicated test chip MBI5027 was operated in the error detection pattern, clock signal can make system controller see through the SDO pin, has read the error detection sign indicating number; Burst can make dedicated test chip MBI5027 return to general modfel; By switching the different working modes of dedicated test chip MBI5027, just can finish the task of particular design.

Claims (4)

1. a LED fault detection system comprises end control system and following end control system and power circuit, and described upward end control system communicates with following end control system by network or by optical fiber and is connected; The described end control system of going up comprises PC, it is characterized in that described end control system down, the fault detect and driving circuit and the fault detection board that comprise embedded master control, led module group, the fault detect of described led module group and driving circuit comprise the dedicated test chip, the dedicated test chip is connected with LED on the one hand, the dedicated test chip is connected with fault detection board on the other hand, and fault detection board connects embedded master control.
2. a kind of LED fault detection system according to claim 1 is characterized in that described fault detect and driving circuit comprise dedicated test chip, resistance and 5V power supply, and the dedicated test chip is connected with the 5V power supply by resistance.
3. a kind of LED fault detection system according to claim 1 and 2 is characterized in that the dedicated test chip adopts electric current led drivers such as 16 bits.
4. a kind of LED fault detection system according to claim 1 and 2 is characterized in that embedded master control is connected with temperature detecting module and ambient brightness detection module and control panel in the casing.
CN 201020110644 2010-02-05 2010-02-05 LED failure detecting system and dedicated chip thereof Expired - Lifetime CN201788258U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020110644 CN201788258U (en) 2010-02-05 2010-02-05 LED failure detecting system and dedicated chip thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020110644 CN201788258U (en) 2010-02-05 2010-02-05 LED failure detecting system and dedicated chip thereof

Publications (1)

Publication Number Publication Date
CN201788258U true CN201788258U (en) 2011-04-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201020110644 Expired - Lifetime CN201788258U (en) 2010-02-05 2010-02-05 LED failure detecting system and dedicated chip thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104422817A (en) * 2013-09-09 2015-03-18 太白Hitech公司 Device for detecting LED module
WO2020191537A1 (en) * 2019-03-22 2020-10-01 深圳市大像视讯科技有限公司 Led display screen artificial intelligence detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104422817A (en) * 2013-09-09 2015-03-18 太白Hitech公司 Device for detecting LED module
WO2020191537A1 (en) * 2019-03-22 2020-10-01 深圳市大像视讯科技有限公司 Led display screen artificial intelligence detection

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
C56 Change in the name or address of the patentee

Owner name: FUSHUN OPTOELECTRONICS TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: FUJIAN FUSHUN ELECTRONIC CO., LTD.

CB03 Change of inventor or designer information

Inventor after: Yang Weiyi

Inventor after: Yang Baicheng

Inventor before: Yang Weiyi

Inventor before: Yang Baicheng

CP01 Change in the name or title of a patent holder

Address after: 363000 hi tech park, Lantian Industrial Zone, Zhangzhou, Fujian

Patentee after: Fushun Optoelectronics Technology Co., Ltd.

Address before: 363000 hi tech park, Lantian Industrial Zone, Zhangzhou, Fujian

Patentee before: Fujian Fushun Electronics Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110406