CN101426151A - Method and system for television set fault display - Google Patents
Method and system for television set fault display Download PDFInfo
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- CN101426151A CN101426151A CNA2007101242633A CN200710124263A CN101426151A CN 101426151 A CN101426151 A CN 101426151A CN A2007101242633 A CNA2007101242633 A CN A2007101242633A CN 200710124263 A CN200710124263 A CN 200710124263A CN 101426151 A CN101426151 A CN 101426151A
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- 238000012360 testing method Methods 0.000 claims description 26
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- 230000006837 decompression Effects 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
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Abstract
The invention discloses a method for displaying TV fault, including the steps of: setting TV set fault type classification levels; detecting the input level of input and output interfaces, and judging the TV fault type of the input level according to the set TV set fault type classification levels; and displaying the TV fault according to the judged TV fault type. Accordingly, the present invention also provides a system for displaying TV fault. The inventive scheme for displaying TV fault has advantages of a much broader application, capability of quickly finding and displaying a variety of TV fault types, simultaneously reduced workload of the after-sale repair and upgraded product service quality.
Description
Technical field
The present invention relates to a kind of technical field of television sets, relate in particular to a kind of method and system of television set fault display.
Background technology
Along with the high speed development of television technologies and the increase day by day of television set function, the system for TV set circuit becomes and becomes increasingly complex, the probability that breaks down in running of tv product also increases gradually thus, if can not judge and get rid of these faults in time, not only can cause the decline of tv product overall performance, when serious even also can cause the damage of equipment, thereby influence normally watching of TV programme.Meanwhile, when unusual condition appears in equipment, owing to lack necessary failure diagnosis and warning circuit in the equipment, the technical staff often is difficult to judge in time the television fault type, thereby need test to judge the television fault type each circuit module of television set, bring a lot of difficulties for thus the inspection maintenance work of equipment, cause technical staff's workload heavy.
In order to address the above problem, application number is that 200620085373.4 Chinese patent discloses a kind of television set with complete machine automatic fault diagnosis warning circuit, it is by I2C (Inter-Integrated Circuit, internal integrated circuit) whether bus detects with the modular circuit of this bus communication normal, after detecting described modular circuit and breaking down, to LED (Light Emitting Diode, light-emitting diode) indicator light circuit sends pulse signal, the LED light circuit is according to described pulse signal, with specific color and flicker frequency indicate concrete which partly break down, realize early warning and warning, thereby the guide maintenance personnel determine trouble location rapidly, find out failure cause, greatly improved the maintenance efficiency of tv product.
The defective of this patent is, is of limited application.It only can point out the circuit module with I2C function to break down, and television set in actual use, and its most faults concentrate on the circuit module that does not possess the I2C function.
In summary, the technical scheme of existing television set fault display obviously exists inconvenience and defective on reality is used, so be necessary to be improved.
Summary of the invention
At above-mentioned defective, the present invention's first purpose is to provide a kind of method of television set fault display, and this method has wide range of applications, and can search and show multiple television fault type fast.
The present invention's second purpose is to provide a kind of system for displaying TV fault, and this system applies is in extensive range, and can search and show multiple television fault type fast.
In order to realize above-mentioned first purpose, the invention provides a kind of method of television set fault display, described method comprises the steps:
A, TV set fault type classification levels is set;
B, detect the incoming level of input/output interface, and judge television fault type under the described incoming level according to set TV set fault type classification levels;
C, according to the television fault type of being judged, television set fault display.
The method according to this invention, described step B further comprises:
B1, detect television fault after, send incoming level to this input/output interface;
B2, from this input/output interface, detect described incoming level;
B3, judge television fault type under the described incoming level according to set TV set fault type classification levels.
The method according to this invention is among the described step B1, after failure detector circuit detects television fault, to the input/output interface transmission incoming level of micro-control unit;
Among the described step B2, micro-control unit detects described incoming level from its input/output interface;
Among the described step B3, micro-control unit is judged television fault type under the described incoming level according to set TV set fault type classification levels.
The method according to this invention, described step C further comprises:
C1, according to the television fault type of being judged, issue corresponding TV set fault idsplay order;
C2, according to described television fault idsplay order, television set fault display.
The method according to this invention, among the described step C1, micro-control unit issues corresponding TV set fault idsplay order by analog to digital converter to fault display circuit according to the television fault type of being judged;
Among the described step C2, fault display circuit is according to described television fault idsplay order, television set fault display.
In order to realize above-mentioned second purpose, the invention provides a kind of system for displaying TV fault, comprising:
Fault type classification level is provided with circuit, is used to be provided with TV set fault type classification levels;
Micro-control unit is used to detect the incoming level of its input/output port, and according to fault type classification level the set TV set fault type classification levels of circuit is set and judges television fault type under the described incoming level;
Fault display circuit is used for according to the television fault type of being judged, television set fault display.
According to system of the present invention, further comprise:
Failure detector circuit is used to detect television fault, and sends the television fault incoming level to the input/output interface of micro-control unit.
According to system of the present invention, described failure detector circuit includes X ray testing circuit, over-current detection circuit, line testing circuit, loses testing circuit, over-voltage detection circuit, and/or under-voltage, decompression testing circuit, wherein:
Whether described X ray testing circuit is used to detect the X ray that the television set internal electron excited and exceeds standard, and send the television fault incoming level to this micro-control unit under situation about exceeding standard;
Whether described over-current detection circuit is used to detect line-scan circuit, field-scanning circuit and switching tube circuit and is short-circuited, and sends the television fault incoming level to this micro-control unit under the situation of short circuit;
Described line testing circuit, whether the beam electronic current that is used to detect the beam current of kinescope circuit exceeds standard, and sends the television fault incoming level to this micro-control unit under the situation that beam electronic current exceeds standard;
Losing testing circuit for described, whether have field pulse output, and send the television fault incoming level to this micro-control unit under the situation of no field pulse output if being used for the checkout area scanning circuit;
Described over-voltage detection circuit, whether normal, and send the television fault incoming level to this micro-control unit under the abnormal situation of voltage if being used to detect voltage;
Described under-voltage, decompression testing circuit, be used for detect circuit occur under-voltage or the decompression situation under, send the television fault incoming level to this micro-control unit.
According to system of the present invention, described fault display circuit is light-emitting diode indicating circuit or television set display board circuit.
According to system of the present invention, described light-emitting diode indicating circuit is by the number of times of LED flash or the flashing mode television set fault display of combination of long drives and drop shots.
The present invention is by being provided with TV set fault type classification levels, detect the incoming level of input/output port then, and judge television fault type under the described incoming level according to set TV set fault type classification levels, last according to the television fault type television set fault display of being judged.Compared with prior art, the range of application of the scheme of television set fault display of the present invention is more extensive and can search and show multiple television fault type fast.Reduce the workload of after-sales service simultaneously, promoted the service of goods quality.
Description of drawings
Fig. 1 is system for displaying TV fault construction module figure provided by the invention;
Fig. 2 is the method flow diagram of television set fault display provided by the invention;
Fig. 3 is the method flow diagram of the television set fault display that provides of the preferred embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Basic thought of the present invention is: TV set fault type classification levels is set, detect the incoming level of input/output port then, and judge television fault type under the described incoming level according to set TV set fault type classification levels, come television set fault display according to the television fault type of being judged at last.
Fig. 1 is system for displaying TV fault construction module figure provided by the invention, this system 100 comprises that fault type classification level is provided with circuit 101, failure detector circuit 102, MCU (Micro ControllerUnit, micro-control unit) 103 and fault display circuit 104, wherein:
Fault type classification level is provided with circuit 101, links to each other with failure detector circuit 102 with MCU 103, is used to be provided with TV set fault type classification levels.
Particularly, the voltage or the electric current of 102 pairs of detected circuit of failure detector circuit detect, when the voltage of detected circuit or electric current surpass set point, the voltage of failure detector circuit 102 changes, thereby detect television fault, and send the television fault incoming level to MCU 103.It specifically comprises: testing circuit 1024 and/or over-voltage detection circuit 1025 are lost in X ray testing circuit 1021, over-current detection circuit 1022, line testing circuit 1023, field, wherein:
Whether X ray testing circuit 1021 is used to detect the X ray that the television set internal electron excited and exceeds standard, and send the television fault incoming levels to MCU 103 under situation about exceeding standard.For example, when the CRT of television set broke down, its voltage can raise, thereby the X ray that causes internal electron to excite exceeds standard.
Over-current detection circuit 1022, comprise the line output circuit over-current detection circuit, the vertical output circuit over-current detection circuit, the switching tube over-current detection circuit, be used for detecting row, field-scanning circuit, switching tube circuit and whether be short-circuited, under the situation of short circuit to MCU 103 transmission television fault incoming levels.
Under the normal condition, the continuous output field pulse of field-scanning circuit, when field-scanning circuit breaks down when quitting work, no field pulse output after losing testing circuit 1024 and detecting, sends the television fault incoming levels to MCU 103.
Over-voltage detection circuit 1025 comprises low pressure over-voltage detection circuit and high pressure over-voltage detection circuit, and whether be used to detect voltage normal, and sends the television fault incoming level to MCU 103 under the abnormal situation of voltage.
Further, described failure detector circuit 102 also can comprise under-voltage, decompression testing circuit, this is under-voltage, the decompression testing circuit detect circuit occur under-voltage or the decompression situation under, send the television fault incoming levels to MCU 103.
Particularly, failure detector circuit 102 is to the incoming level of I/O interface 1031, after described MCU 103 detects incoming level, according to fault type classification level circuit 101 set TV set fault type classification levels being set judges and television fault type under the described incoming level issues and television fault type corresponding TV fault idsplay order then by A/D converter 1032 to fault display circuit 104.
Preferably, described fault display circuit 104 is LED (Light Emitting, a Diode light-emitting diode) indicating circuit.Described light-emitting diode indicating circuit is after receiving the television fault indicator that MCU 103 issues, by the number of times of the short flicker of LED or the flashing mode television set fault display of combination of long drives and drop shots.
As another execution mode of the present invention, described fault display circuit 104 is the television set display board circuit, is used for the television fault type judged according to MCU 103, directly television set fault display information on screen.
Fig. 2 is the method flow diagram of television set fault display provided by the invention, and this method comprises as follows:
Step S201 is provided with TV set fault type classification levels.
Step S202 detects the incoming level of I/O interface, and judges television fault type under the described incoming level according to set TV set fault type classification levels.
Step S203 is according to the television fault type television set fault display of being judged.
The method of the television set fault display that the preferred embodiment of the present invention provides is described in conjunction with the system of Fig. 1 as shown in Figure 3, and this method specifically comprises as follows:
Step S301, fault type classification level is provided with circuit 101 TV set fault type classification levels is set.
Step S302 after failure detector circuit 102 detects television fault, sends incoming level to I/O interface 1031.
Step S303, MCU 103 detect described incoming level from this I/O interface 1031.
Step S304, MCU 103 are provided with circuit 101 set TV set fault type classification levels according to fault type classification level and judge television fault type under the described incoming level.
Step S305, MCU 103 issue corresponding TV set fault idsplay order according to the television fault type of being judged by A/D converter 1032.
Step S306, fault display circuit 104 is according to the television fault idsplay order that is received, television set fault display.In the present embodiment, described fault display circuit 104 is the LED indicating circuit, after it receives the television fault idsplay order, by the number of times of the short flicker of LED or the flashing mode television set fault display of combination of long drives and drop shots, thereby prompting user or attendant's television set break down, and point out guilty culprit.
In sum, the present invention is by being provided with TV set fault type classification levels, detect the incoming level of input/output port then, and judge television fault type under the described incoming level according to set TV set fault type classification levels, last according to the television fault type television set fault display of being judged.Compared with prior art, the range of application of the scheme of television set fault display of the present invention is more extensive and can search and show multiple television fault type fast.Reduce the workload of after-sales service simultaneously, promoted the service of goods quality.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1, a kind of method of television set fault display is characterized in that, described method comprises the steps:
A, TV set fault type classification levels is set;
B, detect the incoming level of input/output interface, and judge television fault type under the described incoming level according to set TV set fault type classification levels;
C, according to the television fault type of being judged, television set fault display.
2, method according to claim 1 is characterized in that, described step B further comprises:
B1, detect television fault after, send incoming level to this input/output interface;
B2, from this input/output interface, detect described incoming level;
B3, judge television fault type under the described incoming level according to set TV set fault type classification levels.
3, method according to claim 2 is characterized in that, among the described step B1, after failure detector circuit detects television fault, to the input/output interface transmission incoming level of micro-control unit;
Among the described step B2, micro-control unit detects described incoming level from its input/output interface;
Among the described step B3, micro-control unit is judged television fault type under the described incoming level according to set TV set fault type classification levels.
4, method according to claim 1 is characterized in that, described step C further comprises:
C1, according to the television fault type of being judged, issue corresponding TV set fault idsplay order;
C2, according to described television fault idsplay order, television set fault display.
5, method according to claim 4 is characterized in that, among the described step C1, micro-control unit issues corresponding TV set fault idsplay order by analog to digital converter to fault display circuit according to the television fault type of being judged;
Among the described step C2, fault display circuit is according to described television fault idsplay order, television set fault display.
6, adopt system, it is characterized in that, comprising as claim 1～5 method as described in each:
Fault type classification level is provided with circuit, is used to be provided with TV set fault type classification levels;
Micro-control unit is used to detect the incoming level of its input/output port, and according to fault type classification level the set TV set fault type classification levels of circuit is set and judges television fault type under the described incoming level;
Fault display circuit is used for according to the television fault type of being judged, television set fault display.
7, system according to claim 6 is characterized in that, further comprises:
Failure detector circuit is used to detect television fault, and sends the television fault incoming level to the input/output interface of micro-control unit.
8, system according to claim 7, it is characterized in that, described failure detector circuit includes X ray testing circuit, over-current detection circuit, line testing circuit, loses testing circuit, over-voltage detection circuit, and/or under-voltage, decompression testing circuit, wherein:
Whether described X ray testing circuit is used to detect the X ray that the television set internal electron excited and exceeds standard, and send the television fault incoming level to this micro-control unit under situation about exceeding standard;
Whether described over-current detection circuit is used to detect line-scan circuit, field-scanning circuit and switching tube circuit and is short-circuited, and sends the television fault incoming level to this micro-control unit under the situation of short circuit;
Described line testing circuit, whether the beam electronic current that is used to detect the beam current of kinescope circuit exceeds standard, and sends the television fault incoming level to this micro-control unit under the situation that beam electronic current exceeds standard;
Losing testing circuit for described, whether have field pulse output, and send the television fault incoming level to this micro-control unit under the situation of no field pulse output if being used for the checkout area scanning circuit;
Described over-voltage detection circuit, whether normal, and send the television fault incoming level to this micro-control unit under the abnormal situation of voltage if being used to detect voltage;
Described under-voltage, decompression testing circuit, be used for detect circuit occur under-voltage or the decompression situation under, send the television fault incoming level to this micro-control unit.
9, system according to claim 6 is characterized in that, described fault display circuit is light-emitting diode indicating circuit or television set display board circuit.
10, system according to claim 9 is characterized in that, described light-emitting diode indicating circuit is by the number of times of LED flash or the flashing mode television set fault display of combination of long drives and drop shots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101242633A CN101426151A (en) | 2007-11-02 | 2007-11-02 | Method and system for television set fault display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101242633A CN101426151A (en) | 2007-11-02 | 2007-11-02 | Method and system for television set fault display |
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| CN101426151A true CN101426151A (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101242633A Pending CN101426151A (en) | 2007-11-02 | 2007-11-02 | Method and system for television set fault display |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969578A (en) * | 2010-09-17 | 2011-02-09 | 青岛海信电器股份有限公司 | Fault detection system and method as well as television |
| CN102123162A (en) * | 2010-12-21 | 2011-07-13 | 海尔集团公司 | Method for automatically classifying feedback fault information of washing machine through internet of things |
| CN108391122A (en) * | 2018-02-28 | 2018-08-10 | 合肥京东方视讯科技有限公司 | A kind of fault detect card |
| CN112542116A (en) * | 2020-12-14 | 2021-03-23 | 四川长虹电器股份有限公司 | Method for rapidly positioning display fault of TCONLESS liquid crystal display television |
-
2007
- 2007-11-02 CN CNA2007101242633A patent/CN101426151A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969578A (en) * | 2010-09-17 | 2011-02-09 | 青岛海信电器股份有限公司 | Fault detection system and method as well as television |
| CN101969578B (en) * | 2010-09-17 | 2012-10-10 | 青岛海信电器股份有限公司 | Fault detection system and method as well as television |
| CN102123162A (en) * | 2010-12-21 | 2011-07-13 | 海尔集团公司 | Method for automatically classifying feedback fault information of washing machine through internet of things |
| CN108391122A (en) * | 2018-02-28 | 2018-08-10 | 合肥京东方视讯科技有限公司 | A kind of fault detect card |
| CN112542116A (en) * | 2020-12-14 | 2021-03-23 | 四川长虹电器股份有限公司 | Method for rapidly positioning display fault of TCONLESS liquid crystal display television |
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Application publication date: 20090506 |