CN201319650Y - Fault detection circuit and electronic equipment - Google Patents
Fault detection circuit and electronic equipment Download PDFInfo
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- CN201319650Y CN201319650Y CNU2008201796032U CN200820179603U CN201319650Y CN 201319650 Y CN201319650 Y CN 201319650Y CN U2008201796032 U CNU2008201796032 U CN U2008201796032U CN 200820179603 U CN200820179603 U CN 200820179603U CN 201319650 Y CN201319650 Y CN 201319650Y
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- detection chip
- fault
- detector circuit
- failure detector
- electronic equipment
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Abstract
The utility model discloses a fault detection circuit and electronic equipment, relating to an improvement of an electronic equipment circuit. The fault detection circuit and the electronic equipment solve the problems in the prior art that only the positions of fault devices can be displayed in real time, and complete information about the fault devices cannot be provided for technicians. The provided fault detection circuit comprises a detection chip and a detected unit which is connected with the detection chip; a storage unit is also connected with the detection chip, and the detection chip detects fault information of the detected unit and stores the fault information in the storage unit.
Description
Technical field
The utility model relates to a kind of improvement of electronic device circuitry, specifically, relates to a kind of failure detector circuit and electronic equipment.
Background technology
Along with the increase day by day of television set function, circuit becomes and becomes increasingly complex in the TV, and the probability that causes tv product to break down in running also increases gradually.When TV is keeped in repair,, need to understand the working condition of inner each device of TV for analyzing failure cause.The technical staff needs to carry out a large amount of detections in maintenance process, maintenance work is very difficult.
Add failure diagnosis and warning circuit in equipment, testing circuit state that can be real-time when finding fault, sends alarm signal to the outside, the position of circular defective device.
State in realization in the process of fault location device, the designer finds that there are the following problems in the prior art:
Can help technical staff's fault location device though adopt the mode of Realtime Alerts to circulate a notice of fault, if the technical staff when taking place to report to the police not at the scene, then can miss alarm signal; And tv fault is by E usually
2The PROM component failure causes, because of a lot of E
2The PROM device is to be mutually related when television operations, so might be a plurality of E when breaking down
2PROM device simultaneous faults, and Realtime Alerts once can only be circulated a notice of the fault message of a device can't provide comprehensive fault message comprehensively for the technical staff, for technical staff's maintenance has brought inconvenience.
The utility model content
In order to solve in the prior art, can only real-time prompting defective device position, the problem of comprehensive defective device information can not be provided for the technical staff, the utility model provides a kind of failure detector circuit.
A kind of failure detector circuit comprises: detection chip and the detected unit that is connected with described detection chip, and described detection chip also is connected with memory cell;
Described detection chip detects the fault message of detected unit, and described fault message is stored in the memory cell.
Further, described detected unit can be at least one supply module, and detection chip links to each other with the voltage output end of described supply module.
Further, described detected unit can be the interconnected I2C device of at least one integrated circuit, and described I2C device is connected with described detection chip by the I2C bus.
Further, described I2C device is specially E
2PROM, described storage chip is specially E
2PROM.
Described detection chip also is connected with suggestion device, and described suggestion device comprises dichromatic LED row and buzzer.
Further, described failure detector circuit is specially the television fault testing circuit, and described detection chip is the television set microprocessor.
The utility model also provides a kind of electronic equipment.
A kind of electronic equipment comprises failure detector circuit, and described failure detector circuit comprises detection chip and the detected unit that is connected with described detection chip, and described detection chip also is connected with memory cell;
Described detection chip detects the fault message of detected unit, and described fault message is stored in the memory cell.
Further, described detected unit comprises supply module and I2C device.
Further, described electronic equipment is specially television set.
Failure detector circuit that the utility model provides and electronic equipment, detect the operating state of each detected unit by detection chip, and when finding detected cell failure, fault message is stored in the storage chip, and send alarm signal in real time, thereby realized to defective device location with to the automatic storage of fault message, solved in the prior art and can only show the defective device position in real time, the problem of comprehensive defective device information can not be provided for the technical staff.
Description of drawings
The structural representation of a kind of failure detector circuit that Fig. 1 provides for embodiment of the present utility model;
The circuit diagram of a kind of tv fault testing circuit that Fig. 2 provides for embodiment of the present utility model;
Fig. 3 is the status data structure schematic diagram of memory chip stores among the embodiment of the present utility model;
Fig. 4 is the composition structural representation of error data among the embodiment of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model content is described in detail.
As shown in Figure 1, the utility model provides a kind of failure detector circuit, comprising: detection chip 101, at least one detected unit 102 and memory cell 103.Detection chip 101 1 ends link to each other with detected unit 102, and the other end links to each other with memory cell 103.
Further, the utility model also wraps suggestion device 104, and described suggestion device links to each other with detection chip 101.
Detection chip 101 detects the operating state of detected unit 102, when finding that detected unit 102 breaks down, send alarm signal by suggestion device 104, and the fault message of the detected unit 102 of described fault is sent to memory cell 103, by the described fault message of memory cell 103 storages.
The utility model can be applied in the electronic equipment, as television set.Be example now, the utility model is described with a kind of television set that has failure detector circuit.
A kind of failure detector circuit of television set comprises detection chip, memory cell, detected unit, suggestion device.
Wherein, described detection chip is specially television set microprocessor 201; Described memory cell is specially E
2PROM chip 202; Described detected unit comprises at least one supply module 203 and at least one I2C device 204; Described suggestion device comprises dichromatic LED row 205 and buzzer 206.
Be equipped with the AD interface on the television set microprocessor 201, television set microprocessor 201 links to each other with the output of supply module 203 by described AD interface; Also be equipped with data/address bus SCL interface and clock bus SDA interface on the television set microprocessor 201, be connected with bus on the interface, television set microprocessor 201 links to each other with I2C device 204 with the SDA bus by the SCL bus.
Television set microprocessor 201 also is connected with dichromatic LED row 205 and buzzer 206.
Described E
2 PROM chip 202 models can be 24LC64, E
2PROM chip 202 also is equipped with SCL interface and SDA interface, E
2PROM chip 202 links to each other with described television set microprocessor 201 with the SDA bus by the SCL bus; E
2Also be equipped with the read-write bus between PROM chip 202 and the television set microprocessor 201, support 201 couples of E of television set microprocessor
2Data in the PROM chip 202 are carried out read-write operation.
Below, embodiment of the present utility model is described.
Television set is started shooting at every turn, after finishing system initialization, television set microprocessor 201 at first utilizes the AD interface to read the voltage value of supply module 203 inputs, in television set microprocessor 201, store the standard operation voltage value and the normal fluctuation range of this supply module 203, if the output voltage of described supply module 203 has surpassed normal fluctuation range, think that then this supply module 203 breaks down.At this moment, television set microprocessor 201 is to E
2PROM chip 202 sends the position of described supply module 203 and the temporal information that makes a mistake, E
2After PROM chip 202 receives described information, described information stores is got up.
Owing to have a plurality of supply modules in the television set, so after the start, successively a plurality of supply modules are detected, whenever detect a fault, television set microprocessor 201 all can send to E with the temporal information that detects fault with the position of the supply module that breaks down
2 PROM chip 202 is by E
2The described information of PROM chip 202 storages.
After finishing the detection to supply module, television set microprocessor 201 begins to detect the I2C device 204 of television set.The mode of detection I2C device has multiple, when the I2C device is E
2During PROM, can be by writing data to the I2C device and reading and detect whether operate as normal of I2C device.For example, television set microprocessor 201 at first writes data " 1 " to I2C device 204, reads the data that just write again, if read the result also for " 1 ", then thinks the device operate as normal; If read the result for " 0 ", then think device fault, at this moment, send to E with the address of described I2C device 204 with when detecting fault
2PROM chip 202.
Owing to have a plurality of I2C devices in the television set, after therefore each start, all can detect successively one time to whole I2C devices.Whenever detect an I2C device fault, just the address with fault I2C device sends to E with the temporal information that detects fault
2PROM chip 202 is by E
2The described information of PROM chip 202 storages.
In addition, television set can also by dichromatic LED row 205 and buzzer 206 real-time send warning message.In television set microprocessor 201, store the corresponding relation of display mode in each supply module and I2C address of devices and the dichromatic LED row 205.In the present embodiment, dichromatic LED row 205 include four dichromatic LEDs, corresponding one 4 bit; Described diode can send redness and blue light, sets red light and represents digital " 0 ", blue light representative data " 1 ".After television set detects the I2C device fault, obtain described I2C address of devices for " 1 ", then send binary numbers " 0001 ", then being shown as of dichromatic LED row 205 " red, red, red, indigo plant " to dichromatic LED row 205.Simultaneously, send signal to buzzer 206, buzzer 206 sends alarm sound.
Of particular note, when 201 pairs of supply modules 203 of television set microprocessor and I2C device 204 detect, but when not finding fault, also can and be sent to E detection time with address of devices
2PROM chip 202 stores, and when keeping in repair like this, can infer the time of breaking down according to the time that detects normal condition for the last time after breaking down, for maintenance provides more reference informations.
After having detected the operating state of all I2C devices, detect and finish.After each television boot-strap carries out system initialization, all can carry out once detection to supply module and I2C device.
Below to defective device address information and detect the temporal information of fault at described E
2Storage mode in the PROM chip 202 describes.
E
2The data store organisation of PROM chip 202 storage failure information is being read and write number of times zone 301 storage switch machine total degree information as shown in Figure 3; At the components and parts I of device and time marked region 302 memory errors that makes mistakes
2C address and the time of makeing mistakes; Empty flag bit emptying mark region 303 storage, record empties number of times, as whole E
2After PROM chip 202 was all write and expired, television set microprocessor 201 can control E
2PROM chip 202 empties the fault message of storage, and the numerical value that will empty mark region 303 adds 1.
Wherein, the data of storage further comprise in described make mistakes device and the time marked region 302, as shown in Figure 4, and make mistakes time zone 3021 and fault address zone 3022.The described time zone 3021 of makeing mistakes is 4Byte, the time that storage failure takes place; Described fault address zone 3022 be 1Byte, the address of the components and parts of representing to make mistakes.The time that described fault takes place can be the concrete time, also can identify with the number of times of switching on and shutting down, by the time that switching on and shutting down number of times suspected fault takes place, decides according to embodiment, and the utility model does not limit this.
Failure detector circuit that the utility model provides and electronic equipment, detect the operating state of each detected unit by detection chip, and when finding detected cell failure, fault message is stored in the storage chip, and send alarm signal in real time, thereby realized to defective device location with to the automatic storage of fault message, solved in the prior art and can only show the defective device position in real time, the problem of comprehensive defective device information can not be provided for the technical staff.
Above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited only to the foregoing description; variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection range of the present utility model.
Claims (10)
1, a kind of failure detector circuit is characterized in that, comprises detection chip and the detected unit that is connected with described detection chip, and described detection chip also is connected with memory cell;
Described detection chip detects the fault message of detected unit, and described fault message is stored in the memory cell.
2, failure detector circuit according to claim 1 is characterized in that, described detected unit is at least one supply module, and detection chip links to each other with the voltage output end of described supply module.
3, failure detector circuit according to claim 1 is characterized in that, described detected unit is the interconnected I2C device of at least one integrated circuit, and described I2C device is connected with described detection chip by the I2C bus.
4, failure detector circuit according to claim 3 is characterized in that, described I2C device is specially E
2PROM.
5, failure detector circuit according to claim 1 is characterized in that, described memory cell is specially E
2The PROM chip.
6, failure detector circuit according to claim 1 is characterized in that, described detection chip also is connected with suggestion device, and described suggestion device comprises dichromatic LED and buzzer.
7, failure detector circuit according to claim 1 is characterized in that, described failure detector circuit is specially the television fault testing circuit, and described detection chip is the television set microprocessor.
8, a kind of electronic equipment is characterized in that, comprises failure detector circuit, and described failure detector circuit comprises detection chip and the detected unit that is connected with described detection chip, and described detection chip also is connected with memory cell;
Described detection chip detects the fault message of detected unit, and described fault message is stored in the memory cell.
9, electronic equipment according to claim 7 is characterized in that, described detected unit comprises supply module and I2C device.
10, electronic equipment according to claim 8 is characterized in that, described electronic equipment is specially television set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201796032U CN201319650Y (en) | 2008-11-27 | 2008-11-27 | Fault detection circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201796032U CN201319650Y (en) | 2008-11-27 | 2008-11-27 | Fault detection circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201319650Y true CN201319650Y (en) | 2009-09-30 |
Family
ID=41198407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201796032U Expired - Fee Related CN201319650Y (en) | 2008-11-27 | 2008-11-27 | Fault detection circuit and electronic equipment |
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| CN (1) | CN201319650Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867841A (en) * | 2010-04-12 | 2010-10-20 | 福建新大陆通信科技股份有限公司 | Automatic detection method for programme signal interrupt recovery of set top box |
| CN101888570A (en) * | 2010-06-25 | 2010-11-17 | 深圳创维－Rgb电子有限公司 | Post-sale breakdown maintenance system and method thereof of television |
| CN102186099A (en) * | 2011-04-29 | 2011-09-14 | 冠捷显示科技（厦门）有限公司 | Method for responding messages of broadcast television |
| CN102288890A (en) * | 2011-08-12 | 2011-12-21 | 福建星网锐捷网络有限公司 | Method and device for detecting failures of chip |
| CN102291592A (en) * | 2011-07-29 | 2011-12-21 | 冠捷显示科技（厦门）有限公司 | Method for collecting self-checking failure information of television by using external storage medium |
| CN107238789A (en) * | 2016-11-28 | 2017-10-10 | 华润赛美科微电子(深圳)有限公司 | Fault detect recording method and the Fault of Integrated Circuits record system based on PC |
-
2008
- 2008-11-27 CN CNU2008201796032U patent/CN201319650Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867841A (en) * | 2010-04-12 | 2010-10-20 | 福建新大陆通信科技股份有限公司 | Automatic detection method for programme signal interrupt recovery of set top box |
| CN101867841B (en) * | 2010-04-12 | 2011-08-10 | 福建新大陆通信科技股份有限公司 | Automatic detection method for programme signal interrupt recovery of set top box |
| CN101888570A (en) * | 2010-06-25 | 2010-11-17 | 深圳创维－Rgb电子有限公司 | Post-sale breakdown maintenance system and method thereof of television |
| CN102186099A (en) * | 2011-04-29 | 2011-09-14 | 冠捷显示科技（厦门）有限公司 | Method for responding messages of broadcast television |
| CN102291592A (en) * | 2011-07-29 | 2011-12-21 | 冠捷显示科技（厦门）有限公司 | Method for collecting self-checking failure information of television by using external storage medium |
| CN102291592B (en) * | 2011-07-29 | 2013-11-20 | 冠捷显示科技（厦门）有限公司 | Method for collecting self-checking failure information of television by using external storage medium |
| CN102288890A (en) * | 2011-08-12 | 2011-12-21 | 福建星网锐捷网络有限公司 | Method and device for detecting failures of chip |
| CN102288890B (en) * | 2011-08-12 | 2013-10-23 | 福建星网锐捷网络有限公司 | Method and device for detecting failures of chip |
| CN107238789A (en) * | 2016-11-28 | 2017-10-10 | 华润赛美科微电子(深圳)有限公司 | Fault detect recording method and the Fault of Integrated Circuits record system based on PC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20121127 |