CN101866599A - LED on-line detection control system - Google Patents

LED on-line detection control system Download PDF

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Publication number
CN101866599A
CN101866599A CN201010159867A CN201010159867A CN101866599A CN 101866599 A CN101866599 A CN 101866599A CN 201010159867 A CN201010159867 A CN 201010159867A CN 201010159867 A CN201010159867 A CN 201010159867A CN 101866599 A CN101866599 A CN 101866599A
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fault
module
control module
signal
led
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CN101866599B (en
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商松
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Beijing Zhongqing Micro Digital Equipment Development Co Ltd
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Abstract

The invention discloses an LED on-line detection control system for detecting and controlling all display terminals on line, which comprises a display unit, a control unit, a detection unit and a judging unit; the control unit is connected with all elements of the display terminals for sending control signals; the detection unit is connected with all elements of the display terminals for detecting the circuit parameters and the signal parameters of all the elements to generate detection data; the judging unit is provided with a first judging module and a second judging module; the first judging module is used for judging whether connection faults or unit faults occur according to the detection data; the second judging module is connected with the first judging module for judging whether signal faults occur; the control unit generates fault state data according to the judging results; and the display unit serves as a man-machine operation display interface for sending video files, receiving the fault state data and displaying the fault states. The LED on-line detection control system has the advantages of precise detection data, accurate judging results, good detection effect and high control intelligent level.

Description

A kind of LED online detection and control system
Technical field
The present invention relates to the lighting device detection technique, especially relate to a kind of LED online detection and control system.
Background technology
Development along with the LED display technique, LED display application and LED lamp decoration brightening application are low because of its energy consumption, color reducibility is strong, characteristics such as life-span length, enormous size, exotic shape, various occasions have been applied to more and more widely, in the middle of these were used, fault detection technique also more and more embodied its importance.LED display application in the particularly great occasion, because of its movable importance, thereby also higher to the requirement of LED demonstration failure judgment and maintenance.
In the middle of current LED display application, although having recognized LED, users show the significance of fault detection technique, leading firm is also in the research and development of having carried out fault detection technique in varying degrees both at home and abroad.But be limited by the technical strength various factors, present fault judgement focuses mostly on and judges that in visual inspection and experience detection means also stays in offline inspection means such as multimeter, oscillograph, efficient 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, there is defective in prior art, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of detection data accurate, can judge that judged result is accurate according to different faults respectively, detect effective, and, the high LED online detection and control system of control intelligent level.
Technical scheme of the present invention is as follows: a kind of LED online detection and control system, be used for outside each display terminal of online detection and control, and wherein, comprise display unit, control module, detecting unit and judging unit; Described control module is connected with each element of described display terminal by circuit, is used for transmitting control signal according to video file; Described detecting unit is connected with each element of described display terminal, is used to detect the circuit parameter and the signal parameter of each element, generates to detect data; Described judging unit is provided with first judge module and second judge module; Described first judge module is connected with described detecting unit, be used for according to described detection data, judging whether to take place to connect fault or cell failure, is then to generate first fault data and send to described control module, sends to second judge module otherwise will detect data; Described second judge module is connected with described first judge module, is used for judging whether to take place signal fault according to described detection data, generates second fault data or failure-free data, and sends to described control module; Described control module also is connected with described second judge module with described first judge module respectively, is used for according to judged result, generates fault state data, and sends to described display unit; The described display unit that is provided with load module adopts the human-machine operation display interface, be connected with described control module, be used to receive the instruction of outside input, send video file, receive fault state data and show malfunction, described malfunction comprises and breaking down and non-fault that wherein breaking down comprises the break down position and the type that breaks down.
Described LED online detection and control system, wherein, described control module is provided with the type block of described fault, be used for according to judged result, generation comprises the fault state data that connects fault, cell failure and signal fault, wherein, described connection fault comprises that at least circuit connects fault and is connected fault with signal, and described cell failure comprises control module fault, driver element fault, led display unit fault at least.
Described LED online detection and control system, wherein, described control module is connected or wireless connections by network transmission line with described display terminal.
Described LED online detection and control system, wherein, described detecting unit also is connected with described control module, described display unit respectively, when being used to detect described control module and being fault, shows malfunction by described display unit.
Described LED online detection and control system, wherein, described control module is the signalization correcting module also, is connected with described control module with described second judge module respectively, is used for revising described control signal according to described second fault data.
Described LED online detection and control system, wherein, between each element of described control module and described display terminal, the first signal connecting line road and secondary signal connection line are set, be used for transmitting identical control signal respectively, and preferentially select for use the described first signal connecting line road that described fault state data is sent to described display unit.
Described LED online detection and control system, wherein, described control module is the signalization handover module also, be connected with described first judge module, be used for to select for use the described first signal connecting line road to switch to and selecting described secondary signal connection line for use when judging that the described first signal connecting line road is a fault.
Described LED online detection and control system, wherein, described control module is provided with first control module and second control module, and preferentially selects for use described first control module to be connected with described second judge module with described first judge module respectively; Described signal handover module also is used for will selecting for use described first control module to switch to and selecting described second control module for use when the described first control module fault.
Described LED online detection and control system, wherein, described control module also is provided with a memory module, is used to store each parameter of described display terminal; Wherein, each parameter comprises the performance parameter of structural parameters He each LED of each element.
Described LED online detection and control system, wherein, described detecting unit is fixedly installed on the described display terminal.
Adopt such scheme, the present invention transmits control signal by display unit and shows malfunction, can find fault very intuitively, and in time revises; And, detect the circuit parameter and the signal parameter of each element by detecting unit, generate and detect data, through first judge module, judge whether fault or cell failure take place to connect by first judge module, when not having the fault of connection or cell failure, judge whether to take place signal fault by second judge module again, by judging that respectively make judgment data more accurate, judged result is also more accurate; And, again by control module according to judged result, generate fault state data; As showing malfunction, it is effective to detect the control system detection at the LED line by display unit, and, control intelligent level height.
Description of drawings
Fig. 1 is the synoptic diagram of embodiment 1 among the present invention;
Fig. 2 is the synoptic diagram of embodiment 2 among the present invention;
Fig. 3 is the synoptic diagram of embodiment 3 among the present invention;
Fig. 4 is the synoptic diagram of embodiment 4 among the present invention;
Fig. 5 is the synoptic diagram of embodiment 5 among 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 embodiment provides a kind of LED online detection and control system, described LED online detection and control system comprises display unit, control module, detecting unit and judging unit, wherein, described LED online detection and control system is used for online detection and controls each external display terminal, described display terminal comprises various display devices, for example LED display, LED lamp decoration etc., and each display device can be used to show various figures, literal, letter and animated video etc.For example, comprise LED display such as advertisement screen, information screen, animated video screen, LED lamp decorations such as underwater lamp, guardrail pipe, wall lamp.
Described control module is connected with each element of display terminal by circuit, for example, is electrically connected by power lead and each element of described display terminal, and connects with signal by each control chip of signal wire and described display terminal; Each element comprises each LED, each chip for driving, each control chip, each resistance capacitance etc.; And, described control module is also according to the video file of each LED needs displaying contents in the described display terminal, generate control signal, and send to described display terminal, thereby make the described display terminal can be according to described video file, display of video content be as various figures, literal, letter, animation etc., perhaps at described display terminal during, realize variously chasing, display effect such as flicker as the LED lamp decoration.
Wherein, described detecting unit is connected with each element of described display terminal, and for example, described detecting unit can be provided with the plurality of detection module, each module can corresponding described display terminal one or more elements, be used to detect the circuit parameter and the signal parameter of corresponding each element; Perhaps, described detecting unit only is provided with a detection module, corresponding circuit parameter and the signal parameter that detects whole elements of described display terminal of described detection module; And,, generate and detect data, and send to judging unit according to the circuit parameter and the signal parameter of detected each element.Wherein, circuit parameter can comprise in the voltage, electric current, power of each element etc. one or multinomial, and signal parameter can comprise the electric signal of the control signal of each control chip and each chip for driving, each LED input; Each chip for driving can be constant-current driven chip or constant voltage driving chip.
Described judging unit is provided with first judge module and second judge module.Wherein, described first judge module is connected with described detecting unit, receives the detection data from detecting unit, and, according to detecting circuit parameter information and the signal parameter information that comprises in the data, judge whether each element of described display terminal connects fault or cell failure.
For example,, judge whether each element connects fault,, then can judge fault takes place to connect, as the circuit open failure takes place as according to the no-voltage input according to having or not of each element voltage; And for example, normal according to each element voltage transmission, then can judge and not have the fault of connection; And for example, according to having or not of each element input end signal, can judge whether to take place signal and connect fault, then no signal connection fault is arranged, the no signal input then can be judged as signal connection fault takes place; Perhaps, judge whether to be cell failure according to having or not of each element output end signal, for example, the input end signal of control chip A is normal, and the output of output terminal no signal then can be judged this control chip A fault.
When judging that each element connects fault or cell failure for generation, then described first judge module generates first fault data according to described detection data, and, this first fault data is sent to control module; When judging that each element does not have the connection fault, and, during no cell failure, then described detection data are sent to second judge module.
The described second interpretation unit receives described detection data, and, according to described detection data, judge whether described display terminal signal fault takes place; Described signal fault refers to, and each element input and output side all has signal, but it is unusual to appoint the one or both ends signal to take place, and loses situations such as signal data distortion as signal data; Then described second judge module generates second fault data according to described detection data, and is dealt into described control module; Perhaps, second judge module is according to described detection data, the signal input and output of judging each element all just often, promptly non-fault takes place, then second judge module generates failure-free data according to checking data, and, send to described control module.
Described control module receives described first fault data, or receive described second fault data, or after the reception failure-free data, according to this judged result, generate fault state data, wherein fault state data is for connecting fault state data, or cell failure status data, or the signal fault status data, or unfaulty conditions data, and each fault state data sent to described display unit.
Described display unit adopts the human-machine operation display interface, as, described display unit can be a LED display or a LCDs etc.; Described display unit is connected with described control module, and described display unit is provided with load module, described load module is used to import various instructions, as be used to control the video file instruction of display terminal, perhaps, detect display terminal malfunction and malfunction instruction etc.For example, import above-mentioned instruction by the user by described load module.
After described display unit receives the instruction of outside input, send video file to described control module, and, reception is from the fault state data of described control module, and, show malfunction according to described fault state data, wherein, corresponding each fault, described control module is provided with the type block of described fault, and according to judged result, each fault type module is corresponding respectively, generation comprises the connection fault, the fault state data of cell failure and signal fault, described malfunction comprises particular location and the fault type that fault takes place, and described abort situation refers to a certain circuit or the concrete structure position of a certain element in described display terminal of breaking down, and refers to connect fault during described fault type, cell failure and signal fault, wherein, connect fault and comprise that at least circuit connects fault and is connected fault with signal, cell failure comprises the control module fault at least, the driver element fault, led display unit fault, signal fault comprise the control signal fault at least.
And, described control module is connected by network transmission line with described display terminal, be between described control module and the described display terminal, transmit the control signal of each LED by high speed network technologies such as gigabit Ethernet or optical networkings, as, can carry out the transmission of control signal by Category-5 twisted pair, single-mode fiber or multimode optical fiber; Perhaps, described control module and described display terminal be also by wireless connections, promptly by sending and accept wireless signal, thereby thereby with described control signal by control module send to described display terminal can realize control signal than long-distance transmissions, and, make laser propagation effect better.
Wherein, described detecting unit can be fixedly installed on the described display terminal, thereby makes the more close of detecting unit and described display terminal, detection to each element of described display terminal is more convenient, and the detection line syndeton is simple, and testing result is accurate.
Embodiment 2
As shown in Figure 2, on the basis of above-mentioned each example, in the LED online detection and control system that present embodiment provided, described detecting unit also is connected with described control module, described display unit and first judge module, described detecting unit also is used to detect the circuit parameter and the signal participation of described control module, and, generate and detect data, judge by described first judge module whether described control module is fault, be then to generate the control module fault data, and, directly export described control module fault data to described display unit.
For example, can export described control module fault data to described display unit, can in described display unit, alarm module be set, when receiving described control module fault data, then send alerting signal, as, jump out warning window in the described display unit, so, can know fast that then described control module is a fault, thereby unnecessary resource can avoid waste.
Perhaps, also malfunction indicator lamp can be set, described malfunction indicator lamp is connected with described first judge module, can export described control module fault data to described pilot lamp, and indicating described control module by malfunction indicator lamp is fault.
Embodiment 3
As shown in Figure 3, on the basis of above-mentioned each example, in the LED online detection and control system that present embodiment provided, described control module is the signalization correcting module also, and described signal correction module is connected with described control module with described second judge module respectively.
When described second judge module is judged described display terminal generation signal fault, then start described signal correction module, described signal correction module is used for revising described control signal according to described second fault data.
For example, control signal before the correction of each LED is inputed in the described signal correction unit, described second judge module is according to detecting data, judge that relevant elements is a signal fault in the described LED display terminal, then by described second fault data, can know the concrete reason that described signal fault takes place, as, be loss of data, situations such as data distortion, then described signal correction module is promptly according to the raw data of signal, this control signal that breaks down is revised, and revised control signal is sent to described display terminal, be used for each LED of the described display terminal of drive controlling.
Particularly, described signal correction module, the coded system of each control signal data can be adopted the form of network data package, every frame data adopt packet header, data, bag tail to form, every Bao Jun comprises data check and mechanism for correcting errors, in testing process, in case when finding fault such as control signal generation loss of data, distorted signals, promptly start described signal correction module, thereby revise described control signal fast; Adopt described this digital coding mode, can guarantee that data are subjected to uncertain interference in transmission course and when loss of data, error code take place, can utilize algorithm to recover correct raw data, improved the accuracy rate of error-detecting greatly.
Embodiment 4
As shown in Figure 4, on the basis of above-mentioned each example, in the LED online detection and control system that present embodiment provided, between each element of described control module and display terminal, the first signal connecting line road and secondary signal connection line are set, are used for transmitting respectively identical control signal.
Wherein, first control signal is transmitted on the first signal connecting line road, the secondary signal connection line transmits second control signal, first control signal and second control signal are synchronous control signal, and preferentially select for use the described first signal connecting line road that described fault state data is sent to described display unit; By the first signal connecting line road and secondary signal connection line are set, then have two connection lines between control module and each element, the connection reliability height, and, the secondary signal connection line can be the backup on the first signal connecting line road, when break down in the first signal connecting line road, can adopt the secondary signal circuit to connect, the control signal transmission is stable, reliable.
And, one signal handover module also is set, described signal handover module is connected with described first judge module, when first judge module judges that described display terminal is signal connection fault, then start described signal handover module, described signal handover module then will be selected for use a described signal to connect to switch to and select described secondary signal connection line for use, by each LED in the described display terminal of the second control signal drive controlling, make when breaking down on the first signal connecting line road, each LED of described display terminal still can operate as normal, good reliability.
And, described control module also is provided with first control module and second control module, it is the backup that described second control module is affiliated first control module, when the described first control module non-fault, then preferentially select for use described first control module to be connected with described second judge module with described first judge module respectively, promptly adopt described first control module to transmit control signal, and, fault data accepted; When described first was controlled to be fault, described signal handover module also was used for selecting described second control module for use with selecting for use described first control module to switch to, control by described second control module to transmit control signal, and, accept fault data.
For example, described first control module can be connected with described display terminal respectively with the secondary signal circuit by the first signal connecting line road respectively with described second control module, be that described first control module is connected with the secondary signal circuit with the first signal connecting line road respectively, and, second control module also is connected with the secondary signal circuit with the first signal connecting line road respectively, so, make described control module have dual assurance, make described control module better reliability, guaranteed that LED detects the stability of control system work.
Embodiment 5
As shown in Figure 5, on the basis of above-mentioned each example, in the LED online detection and control system that present embodiment provided, described control module also is provided with a memory module, is used to store each parameter of described display terminal; Wherein, each parameter can comprise the performance parameter of structural parameters He each LED of each element.For example, the link position of each LED of described display terminal, each control module, each driver element etc., and parameters such as syndeton each other, performance parameters such as the wavelength of each LED and brightness.
Described memory module is connected with described second judge module with described first judge module respectively, described first judge module and described second judge module are when judging whether each element is fault, also each parameter with described detection data and described display terminal compares, can know the target component data of described display terminal by each parameter, thereby further whether affirmation connects fault or generating unit fault or signal fault or non-fault takes place, and makes judged result more accurate.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.

Claims (10)

1. a LED online detection and control system is used for outside each display terminal of online detection and control, it is characterized in that, comprises display unit, control module, detecting unit and judging unit;
Described control module is connected with each element of described display terminal by circuit, is used for transmitting control signal according to video file;
Described detecting unit is connected with each element of described display terminal, is used to detect the circuit parameter and the signal parameter of each element, generates to detect data;
Described judging unit is provided with first judge module and second judge module;
Described first judge module is connected with described detecting unit, be used for according to described detection data, judging whether to take place to connect fault or cell failure, is then to generate first fault data and send to described control module, sends to second judge module otherwise will detect data;
Described second judge module is connected with described first judge module, is used for judging whether to take place signal fault according to described detection data, generates second fault data or failure-free data, and sends to described control module;
Described control module also is connected with described second judge module with described first judge module respectively, is used for according to judged result, generates fault state data, and sends to described display unit;
The described display unit that is provided with load module adopts the human-machine operation display interface, be connected with described control module, be used to receive the instruction of outside input, send video file, receive fault state data and show malfunction, described malfunction comprises and breaking down and non-fault that wherein breaking down comprises the break down position and the type that breaks down.
2. LED online detection and control system according to claim 1, it is characterized in that, described control module is provided with the type block of described fault, be used for according to judged result, generation comprises the fault state data that connects fault, cell failure and signal fault, wherein, described connection fault comprises that at least circuit connects fault and is connected fault with signal, and described cell failure comprises control module fault, driver element fault, led display unit fault at least.
3. LED online detection and control system according to claim 1 is characterized in that, described control module is connected or wireless connections by network transmission line with described display terminal.
4. LED online detection and control system according to claim 1, it is characterized in that, described detecting unit also is connected with described control module, described display unit respectively, when being used to detect described control module and being fault, shows malfunction by described display unit.
5. LED online detection and control system according to claim 1, it is characterized in that described control module is the signalization correcting module also, be connected with described control module with described second judge module respectively, be used for revising described control signal according to described second fault data.
6. LED online detection and control system according to claim 1, it is characterized in that, between each element of described control module and described display terminal, the first signal connecting line road and secondary signal connection line are set, be used for transmitting identical control signal respectively, and preferentially select for use the described first signal connecting line road that described fault state data is sent to described display unit.
7. LED online detection and control system according to claim 6, it is characterized in that, described control module is the signalization handover module also, be connected with described first judge module, be used for to select for use the described first signal connecting line road to switch to and selecting described secondary signal connection line for use when judging that the described first signal connecting line road is a fault.
8. LED online detection and control system according to claim 7, it is characterized in that, described control module is provided with first control module and second control module, and preferentially selects for use described first control module to be connected with described second judge module with described first judge module respectively; Described signal handover module also is used for will selecting for use described first control module to switch to and selecting described second control module for use when the described first control module fault.
9. LED online detection and control system according to claim 1 is characterized in that described control module also is provided with a memory module, is used to store each parameter of described display terminal; Wherein, each parameter comprises the performance parameter of structural parameters He each LED of each element.
10. LED online detection and control system according to claim 1 is characterized in that described detecting unit is fixedly installed on the described display terminal.
CN201010159867.3A 2010-04-23 2010-04-23 LED on-line detection control system Expired - Fee Related CN101866599B (en)

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CN102006155A (en) * 2010-11-09 2011-04-06 深圳市中庆微科技开发有限公司 Redundant fault-tolerant method of omnidirectional data transmission
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CN103217654B (en) * 2012-01-21 2016-12-28 程抒一 Touch screen remotely monitors fault diagnosis system and method
CN105741718A (en) * 2016-03-24 2016-07-06 北京良业环境技术有限公司 LED pixel screen system having feedback function
CN110036157A (en) * 2016-12-14 2019-07-19 卡特彼勒公司 Detection system is corroded using the tool of augmented reality
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
CN113096570A (en) * 2021-04-23 2021-07-09 四川长虹电器股份有限公司 Liquid crystal display screen capable of intelligently detecting self fault

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