CN101806871B - A kind of online test method - Google Patents
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- CN101806871B CN101806871B CN201010140511.5A CN201010140511A CN101806871B CN 101806871 B CN101806871 B CN 101806871B CN 201010140511 A CN201010140511 A CN 201010140511A CN 101806871 B CN101806871 B CN 101806871B
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- 238000010998 test method Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 29
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- 238000005034 decoration Methods 0.000 claims description 6
- 238000000547 structure data Methods 0.000 claims description 6
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Abstract
The invention discloses a kind of online test method, wherein, comprise the steps; The status of electrically connecting of a, the respectively each unit of detection display terminal and signal connection status; Described unit comprises driver element, control module and display unit; B, according to testing result, generate fault data respectively; Described fault comprises electrical connection fault, signal connects fault, driver element fault, control module fault, display unit fault; C, according to each fault data, failure judgement position and fault type; D, output malfunction.The present invention can the specifically status of electrically connecting of each unit of detection display terminal and the precise information of signal connection status, and accurate failure judgement position and type, Real-Time Monitoring fault, finds fault fast.
Description
Technical field
The present invention relates to a kind of fault detection method of lighting device, particularly, relate to a kind of online test method.
Background technology
Along with the development of LED display technique, LED display application and the brightening of LED decorations are applied because its energy consumption is low, color reducibility is strong, the features such as life-span length, enormous size, exotic shape, be applied to various occasion more and more widely, in the middle of these application, fault detection technique also more and more embodies its importance.LED display application particularly in great occasion, because of the importance of its activity, thus shows the requirement of the judgement of fault and maintenance to LED also higher.
In the middle of current LED display application, although users have recognized that LED shows the significance of fault detection technique, domestic and international leading firm is also in the research and development carrying out fault detection technique in varying degrees.But be limited by technical strength various factors, current breakdown judge focuses mostly in visual inspection and micro-judgment, and detection means also stays in the offline inspection such as multimeter, oscillograph means, efficiency is low, weak effect, and detection means falls behind, levels of precision is not high, and intelligent level is low.The contradiction of widespread popularity and fault-detecting ability deficiency is also more and more outstanding.
Therefore, prior art existing defects, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is, there is provided a kind of can the specifically status of electrically connecting of each unit of detection display terminal and the precise information of signal connection status, failure judgement position and type accurately, can Real-Time Monitoring, the quick online test method finding fault.
Technical scheme of the present invention is as follows: a kind of online test method, wherein, comprises the steps; The status of electrically connecting of a, the respectively each unit of detection display terminal and signal connection status; Described unit comprises driver element, control module and display unit; B, according to testing result, generate fault data respectively; Described fault comprises electrical connection fault, signal connects fault, driver element fault, control module fault, display unit fault; C, according to each fault data, failure judgement position and fault type; D, output malfunction.
Described online test method, wherein, in step a, sequentially, the status of electrically connecting of the random or each unit of backward detection display terminal and signal connection status, wherein, described display unit is display module or display lamp point.
Described online test method, wherein, in step c, successively judges whether electrical connection, signal connection, each control module, each driver element, each display unit break down in order.
Described online test method, wherein, described display terminal comprises LED display, LED decorations; In step a, the status of electrically connecting of each LED module of detection display terminal or each LED point and signal connection status.
Described online test method, wherein, before execution step a, also comprise the steps a1: the structured data storing described display terminal, wherein, described structured data comprises the signal connection structure data between electric connection structure data between composition each cell position data of described display terminal, each unit and each unit.
Described online test method, wherein, steps d specifically performs: according to described fault data, contrasts the structured data of described display terminal, the position that failure judgement occurs and the type that fault occurs.
Described online test method, wherein, described signal connects the first control signal connection comprising control signal transmission direction contrary and is connected with the second control signal; Steps d also performs, and judges that described first control signal connects and breaks down, then described first control signal connected and switch to described second control signal to connect.
Described online test method, wherein, step c also performs following steps: described fault data is converted to wireless data signal; Further, steps d comprises: wireless output malfunction.
Described online test method, wherein, also comprises step e: send failure alarm signal or display malfunction.
Described online test method, wherein, also comprises step f: store described fault data and described malfunction.
Adopt such scheme, the present invention passes through status of electrically connecting and the signal connection status of detection display Terminal Control Element, each driver element and display unit respectively, then according to testing result, generate fault data respectively, again according to each fault data, failure judgement position is connected fault, driver element fault, control module fault, display unit fault with fault type electrical connection fault, signal, finally exports malfunction; So, status of electrically connecting and the signal connection status of each unit of display terminal accurately can be detected, detection position is concrete, data are accurate, and, can the accurately particular location of failure judgement and type according to precise information, thus fault can be found fast, and on-call maintenance.
Accompanying drawing explanation
Fig. 1 is the first implementing procedure schematic diagram of the present invention;
Fig. 2 is the second implementing procedure schematic diagram of the present invention;
Fig. 3 is the third implementing procedure schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, present embodiments provide a kind of online test method, comprise the steps; First, the respectively each unit of detection display terminal or the wherein status of electrically connecting of each element and signal connection status.Status of electrically connecting can comprise the status of electrically connecting of all elements of display terminal, also can be the status of electrically connecting of each unit of display terminal; Signal connection status can comprise the signal connection status of all elements of display terminal, also can be the signal connection status of each unit of display terminal.
Wherein, described display terminal comprises various display device, such as LED display, LED decorations etc., such as, comprise the LED display such as advertisement screen, information screen, animated video screen, the LED decorations such as underwater lamp, guardrail pipe, wall lamp; Each element can comprise assorted LED, control chip etc.
A LED display or LED decorations, can be made up of one or more display module, each display lamp point can be a LED luminescence unit, each LED luminescence unit comprises one or more LED, each LED can be the one in redness, green, blueness, or any two kinds, or the LED of three kinds of colors; A display module can comprise several display lamp points; And, one or more control chip and one or more driving chip are also set in each display module, the corresponding one or more driving chip of each control chip, and, can corresponding one or more LED luminescence unit by described driving chip, control chip by input control signal, after driving chip, can some LED luminescence units of its correspondence of drived control; Described driving chip can be the chip of any known drive mode, such as constant voltage driving chip or constant-current driven chip etc.
Such as, when detecting described display terminal, respectively a detection module can be set in each control chip, each detection module, the voltage input and voltage output, control signal input and control signal output, the electric signal that may be used for the control chip detecting its correspondence export, the input of driving chip electric signal and electric signal output, and the state such as LED electrical signal input.
Then, according to testing result, generate fault data respectively; Such as, each detection module, can input according to the voltage at the control chip two ends detecting its correspondence and voltage exports, and generates electrical connection fault data; Or, input and control signal output according to the control signal at the control chip two ends detecting its correspondence, generate signal and connect fault data; Or the electric signal according to detecting its corresponding control chip exports, and generates control chip fault data; To input and electric signal exports, generation driving chip fault data according to detecting the electric signal at driving chip two ends that control chip corresponding to it be connected; Or the electric signal according to detecting each LED that control chip corresponding to it is connected inputs, generate LED fault data etc.
And, each fault data can be sent to a judge module by described detection module, fault data, control chip fault data and LED fault data is connected according to described electrical connection fault data, signal again by described judge module, namely can failure judgement position and fault type.
Such as, control chip A, control chip B, control chip C are order serial signal cascade and order power sources in parallel, therefore, when voltage input end or voltage output end that control chip A detected break down, namely input end or power supply connection output terminal can be connected at the power supply of control chip A in failure judgement position, further, fault type is electrical connection fault; Or, when control chip A, control chip B, control chip C are order power sources in series, when the voltage output end of detection control chip A breaks down, and, during control chip B input end no-voltage, namely can failure judgement position between control chip A and control chip B, and fault type is electrical connection fault.
Or, when the control signal input end of control signal output terminal and control chip B that control chip A detected breaks down respectively, namely can failure judgement position between control chip A and control chip B, and, fault type be signal connect fault.
Or, when the electrical connection of control chip A and signal connect be normal time, detect that the electric signal of control chip A exports and break down, then can failure judgement position be control chip A, fault type be control module fault.
Or, when the electrical connection of control chip A and control chip A and signal connect be normal time, detect that the electric signal of the driving chip a be connected with control chip A inputs and electric signal exports and breaks down, then can be between control chip A and driving chip a or be driving chip a itself in failure judgement position, fault type is driver element fault.
Or, when the electrical connection of control chip A, signal connect, control chip A and driving chip a be normal time, when detecting that the electric signal input of a certain LEDX be connected with driving chip a is broken down, then failure judgement position is between driving chip A and LEDX or LEDX itself breaks down, and fault type is display unit fault.
After judging the abort situation that occurs and fault type, described judge module exports malfunction, and described malfunction can by the form of data, and, exported by circuit.
As shown in Figure 2, described judge module is connected with a display device, shown judge module exports fault data to described display device, by described display device display malfunction, described display device is can various display, as, the various electronic console such as computer, mobile phone, shows the position of each fault generation and the type of fault generation by display device.
Further, failure alarm signal can also being sent by described display device, during as arranged fault generation in a display device, jumping out failure warning window, or, send failure warning sound.
Or described judge module can also be connected with each pilot lamp, occurred by assorted pilot lamp indication fault, and the type that the instruction of different colours pilot lamp occurs, and location of fault.So fast, intuitively can check abort situation and fault type, and, detect data accurate, can Real-Time Monitoring, find fault, and on-call maintenance.
Embodiment 2
On above-mentioned each routine basis, in the online test method that the present embodiment provides, when detecting status of electrically connecting and the signal connection status of described display terminal each unit, order, random or backward status of electrically connecting and the signal connection status of each unit of described display terminal can be detected.
Such as, according to the order that each unit of described display terminal connects, as, the waterfall sequence of each control chip, detects described control chip, driving chip and each LED be connected with described driving chip and electrical interconnection, signal connecting line road etc. between described control chip and adjacent control chip.
And for example, the described control chip A of display terminal described in random detection and each driving chip be connected with described control chip A, each LED and the electrical interconnection between described control chip A and adjacent control chip, signal connecting line road etc.
And for example, according to the direction that the cascade of each control chip is contrary, the each driving chip detecting described control chip and be connected with described control chip, each LED and the electrical interconnection between described control chip and adjacent control chip, signal connecting line road etc., namely backward detects status of electrically connecting and the signal connection status of described display terminal.
So, can detect status of electrically connecting and the signal connection status of each unit of described display terminal according to actual needs setting, detection mode is versatile and flexible.
Embodiment 3
As shown in Figure 3, on above-mentioned each routine basis, in the online test method that the present embodiment provides, before the status of electrically connecting and signal connection status of each unit of difference detection display terminal, also store the structured data of described display terminal.
Wherein, described structured data comprises each unit of the described display terminal of composition, as the signal connection structure data between the electric connection structure data between the position data of each control chip, each driving chip, each LED, each unit and each unit, wherein, signal connection structure comprises the cascade Mach-Zehnder interferometer signal connection structure between control chip, and the electric signal connection result between control chip and each driving chip, and the electric signal connecting structure between each driving chip and each LED.
And, described judge module is when the position that failure judgement occurs and type, contrasted by the structured data of fault data that each judge module is received and storage, the structured data corresponding with fault data can be found out, thus accurately can obtain the particular location of described fault at described display terminal, for the electrical connection of concrete certain is broken down, or the signal connection of certain is broken down, or a certain control module or control chip break down, or a certain driver element or driving chip break down, or a certain display unit or display module or display lamp point break down, such as, LED display module or LED point etc., thus export and show described malfunction, and, the fault data received by each judge module and the structured data of storage are contrasted, described judge module can also be helped to confirm the type that failure judgement occurs further, make judged result more accurate.
Embodiment 4
On above-mentioned each routine basis, in the online test method that the present embodiment provides, described signal connects the first control signal connection comprising control signal transmission direction contrary and is connected with the second control signal; Namely two control signal input ends and two control signal output terminals can be set in each control chip, each control signal input end inputs identical control signal respectively, so, it is the backup that the first control signal connects that the second control signal can be made to connect, when the first control signal connection is broken down, the second control signal can be adopted to connect, and control signal transmission is stable, reliable.
When judge module judges that described first control signal connects as fault, during as judged that the control signal input end generation signal that first control signal of control chip A connects connects fault, then namely described first control signal connection can switch to described second control signal to connect by described control chip, the control signal of the control signal input end input connected by adopting the second control signal, carry out each LED of drived control, each LED still can normally be worked, good reliability.
Embodiment 5
On above-mentioned each routine basis, in the online test method that the present embodiment provides, described fault data can also be converted to wireless data signal, fault data is exported by transmission of wireless signals, and by display device receiving radio data signal, then show fault, remote fault data transmission can be carried out.
Such as, each detection module is arranged on described display terminal, and, described terminal one data conversion module, by described data conversion module, the fault data that judge module generates can be converted to wireless data signal, and, remote display device is given by transmission of wireless signals, thus can without the need to on-the-spot to display terminal, namely receiving radio data signal can be carried out by arranging receiving trap, thus reception fault data, and the type of position and the fault broken down is shown by described display device, or, failure alarm signal is sent by described display device, the detection of fault is made to become simpler, convenient, save the man power and material of Site Detection.
Embodiment 6
On above-mentioned each routine basis, in the online test method that the present embodiment provides, after the type that the position that display fault occurs and fault occur, store described fault data and described malfunction, by recording the state that breaks down at every turn, and the fault data of its correspondence, failure logging in the past can be checked at any time fast; Further, when can also there is the malfunction of similar type afterwards, check record fast, the fault data and reference was broken down in the past during state, finds failure cause in time, and keeps in repair.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (4)
1. an online test method, is characterized in that, comprises the steps;
The status of electrically connecting of a, the respectively each unit of detection display terminal and signal connection status; Described unit comprises driver element, control module and display unit, and described display terminal comprises LED display, LED decorations, the status of electrically connecting of each LED module of detection display terminal or each LED point and signal connection status;
B, according to testing result, generate fault data respectively; Described fault comprises electrical connection fault, signal connects fault, driver element fault, control module fault, display unit fault;
C, according to described fault data, contrast the structured data of described display terminal, the position that failure judgement occurs and the type that fault occurs, described terminal one data conversion module, by described data conversion module, the fault data that judge module generates is converted to wireless data signal;
D, output malfunction, judge that the first control signal connects and break down, then described first control signal connected and switch to the second control signal to connect, give remote display device by wireless signal by fault data transmission;
E, by assorted pilot lamp indicating fault status, the type that the instruction of different colours pilot lamp occurs, and location of fault;
Before execution step a, also comprise the steps a1: the structured data storing described display terminal, wherein, described structured data comprises the signal connection structure data between electric connection structure data between composition each cell position data of described display terminal, each unit and each unit.
2. online test method according to claim 1, is characterized in that, in step a, sequentially, the status of electrically connecting of the random or each unit of backward detection display terminal and signal connection status, wherein, described display unit is display module or display lamp point.
3. online test method according to claim 1 and 2, is characterized in that, in step c, successively judges whether electrical connection, signal connection, each control module, each driver element, each display unit break down in order.
4. online test method according to claim 1 and 2, is characterized in that, also comprises step f: store described fault data and described malfunction.
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| CN102169666B (en) * | 2011-03-17 | 2016-04-27 | 深圳市中庆微科技开发有限公司 | The LED display system that a kind of intelligent online detects |
| CN102184706B (en) * | 2011-03-22 | 2016-03-02 | 深圳市中庆微科技开发有限公司 | A kind of Intelligent Installation method of LED display system |
| CN105279873B (en) * | 2015-09-29 | 2018-06-08 | 小米科技有限责任公司 | Reminding method and device |
| CN105652141B (en) * | 2016-03-14 | 2018-06-05 | 湖南工业大学 | Locomotive top climbing high pressure alarm self-diagnosable system |
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| CN1359010A (en) * | 2000-08-30 | 2002-07-17 | 株式会社赛尔鲍尔 | Apparatus and method for positioning parallel double electricity transmission line |
| CN201293830Y (en) * | 2008-11-24 | 2009-08-19 | 青岛海信电器股份有限公司 | Detection device and system for display lamp |
| CN102841321A (en) * | 2011-06-23 | 2012-12-26 | 海洋王照明科技股份有限公司 | Alarm control circuit and alarm tool for lamp aging test |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359010A (en) * | 2000-08-30 | 2002-07-17 | 株式会社赛尔鲍尔 | Apparatus and method for positioning parallel double electricity transmission line |
| CN201293830Y (en) * | 2008-11-24 | 2009-08-19 | 青岛海信电器股份有限公司 | Detection device and system for display lamp |
| CN102841321A (en) * | 2011-06-23 | 2012-12-26 | 海洋王照明科技股份有限公司 | Alarm control circuit and alarm tool for lamp aging test |
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