CN104394406A - Detection system and method applicable to AC startup and shutdown test of television - Google Patents
Detection system and method applicable to AC startup and shutdown test of television Download PDFInfo
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- CN104394406A CN104394406A CN201410665024.9A CN201410665024A CN104394406A CN 104394406 A CN104394406 A CN 104394406A CN 201410665024 A CN201410665024 A CN 201410665024A CN 104394406 A CN104394406 A CN 104394406A
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Abstract
The invention relates to the technology for detecting the reliability of televisions, discloses detecting system and method applicable to the AC startup and shutdown of the television, and aims at solving the problems the television AC startup and shutdown test manner of the traditional technology needs testers to participate in all testing processes, which causes large workload and easily leads to omission. The method comprises the following steps: controlling the connection of an AC power supply of the television through a PC; sequentially communicating with an oscilloscope, an inter-machine debugging tool and a colorimeter; collecting the working data of a power supply, an inter-machine and a screen system; analyzing and determining; determining whether to suspend or continue the testing process according to the determining result; in case of no abnormality after determining, disconnecting the AC power supply of the television under the control of the PC; entering the next startup and shutdown cycle according to the preset parameters. According to the method, all the processes are completely automatic and can be done with one key; a problem point causing the fault can be accurately positioned; the system and method apply to the test of the television before delivery.
Description
Technical field
The present invention relates to for television set reliability detection technique, be specifically related to a kind of detection system and the method that are applied to the test of TV alternating-current switch machine.
Background technology
Design and develop with in test process at television set, be the reliability of inspection television set, often need carry out the test of alternating-current switch machine.At present, special alternating-current switch test instrumentation is had to can be used for test, but the break-make that this instrument is only limitted to carry out television set AC-input voltage switches, and need tester on duty aside, viewing test process at any time, record test data, particularly must suspend test at once to retain scene when there are abnormal conditions.
Because whole procedural test personnel must participate in the overall process, workload is quite large, and is very easy to some abnormal conditions accidentally occurred of careless omission, is also difficult to judge abnormal conditions by which portions of circuitry of television set are caused.
Summary of the invention
Technical problem to be solved by this invention is: propose a kind of detection system and the method that are applied to the test of TV alternating-current switch machine, solving in conventional art need participate in the overall process to the tester of alternating-current switch of television machine test mode existence causes workload large, and easily occurs the problem of careless omission.
The technical solution adopted for the present invention to solve the technical problems is: a kind of detection system being applied to the test of TV alternating-current switch machine, comprise PC, fixed signal source, whole set of television to be measured, AC power, also comprise the colorimeter be installed on before television screen to be measured be electrically connected with described PC, and the ac power switch be electrically connected with described PC, AC power, television set to be measured respectively controls frock, the movement debugging tool be electrically connected with television set to be measured and described PC respectively, and the oscilloscope be electrically connected with described PC and television set to be measured respectively;
Described PC, as the control core of whole system, is responsible for issuing command, controls testing process, receives data and carries out analyzing and processing and storage to information, controls the operation of whole system;
Described colorimeter, as the measuring unit of system, is responsible for the state detecting television screen to be measured;
Described alternating current source switch control rule frock, as the control unit of television set AC-input voltage to be measured, under the control of PC, is switched on or switched off the AC power of TV to be measured;
The middleware that described movement debugging tool is connected with television set as PC, under the control of PC, completes the communication of PC and Core of TV set, reads the DEBUG information of movement, judges whether movement normally starts and steady operation;
Described fixed signal source is responsible for exporting signal specific to television set to be measured, makes television set show specific picture;
Described oscilloscope is as the measuring unit of system, the operating state of load detecting TV set power system, after television set exchanges the start that powers on, by the control of PC, voltage, the current parameters of testing power supply system core point, and pass data back PC process, judge that whether power-supply system work is normal.
Concrete, described PC is connected with colorimeter by USB or Serial Port Line, is connected with alternating current source switch control rule frock by parallel port line, connects movement debugging tool and then is connected with whole set of television to be measured, be connected by Serial Port Line with oscilloscope by USB.
In addition, present invention also offers a kind of detection method being applied to the test of TV alternating-current switch machine, it comprises:
A.PC machine controls the connection of AC source of TV. set to be measured, and keeps on-state according to the available machine time of presetting, and television set to be measured powers on start;
B.PC machine communicates with oscilloscope, read the real-time voltage/current parameters of power-supply system key point, according to the comparison of measured parameter value with setting threshold, judge whether power-supply system normally starts and steady operation, start and steady operation if normal, enter step C, otherwise time-out is tested and retains test data for analysis;
Whether normally C.PC machine is communicated with Core of TV set by movement debugging tool, reads movement DEBUG information, judge movement startup also steady operation, start and steady operation, then enter step D, otherwise time-out is tested and retains test data for analysis if normal;
D.PC machine communicates with colorimeter, read the real-time optical parameter of television screen, the parameter area of setting whether is met according to measured parameter value, judge whether screen system normally starts and steady operation, start and steady operation if normal, then enter step e, otherwise time-out is tested and retains test data for analysis;
E.PC machine disconnects the AC power of television set, and remains open state according to the unused time of presetting;
F. system judges whether to reach default cycle-index, if do not reach, then refreshes the make-and-break time of AC power and cycle-index according to test pattern, and enters and circulate next time; If reach, then exit test.
Concrete, in step, also comprise:
After switching on and shutting down control testing software startup, user selects test pattern and sets time and number of times, each Circuits System decision threshold parameter of AC power break-make.
Concrete, described test pattern, according to the change of AC power make-and-break time after each circulation, is divided into " independent assortment pattern ", " time increment mode ", " stochastic model ".
The invention has the beneficial effects as follows: this detection system running full automation, the each Circuits System running status of real-time display television set, change the present situation needing to arrange staff on duty in current switch machine test process, personnel are freed from the stronger test job of repeatability, to be absorbed in the analyze and solve of abnormal problem and the perfect of means of testing, promote whole work efficiency; This detection method can the operating state of each Circuits System of comprehensive detection TV, and when ensureing that test is abnormal, testing process interrupts in time, and locking fault trigger point, retains related data and phenomenon of the failure in time, prevent artificial careless omission rapidly.
Accompanying drawing explanation
Fig. 1 is detection system structural representation of the present invention;
Fig. 2 is detection method flow chart.
Embodiment
The present invention is intended to a kind of detection system and method being applied to the test of TV alternating-current switch machine of proposition, and solving in conventional art need participate in the overall process to the tester of alternating-current switch of television machine test mode existence causes workload large, and easily occurs the problem of careless omission.Circuits System due to television set is made up of movement circuit, screen circuit and power circuit, therefore this programme is by the automatic detection to this three parts running status in the cyclic process of alternating-current switch machine, judge the operating state of whole set of television, and the service data of comprehensive real time record, storage each several part Circuits System, complete the inspection to TV power on and off reliability.
This programme can by the time of user's self-defined alternating-current switch machine (ms level) and the parameter such as number of times, each Circuits System decision threshold, omnidistance one-key operation, need not tester on duty, automatic display test process, automatic retention fault scene and relevant test data, also can manual suspending/resuming as required, grasp testing process flexibly.
Below in conjunction with drawings and Examples, the solution of the present invention is further described, it should be noted that, embodiment scheme described is below only for explaining the present invention, not as a limitation of the invention.
See Fig. 1, detection system in this example comprises: PC, fixed signal source, whole set of television to be measured, AC power (meaning not shown in the figures), also comprise the colorimeter be installed on before television screen to be measured be electrically connected with described PC, and the ac power switch be electrically connected with described PC, AC power, television set to be measured respectively controls frock, the movement debugging tool be electrically connected with television set to be measured and described PC respectively, and the oscilloscope be electrically connected with described PC and television set to be measured respectively;
PC main frame: as the control core of whole system, is responsible for issuing command, controls testing process, and reception data and information carry out analyzing and processing and storage, controls the operation of whole system.Comprise the Survey control of colorimeter, the control of alternating-current switch time, with the communication of TV set core, oscillographic Survey control, the judgement etc. of operating conditions of TV set in test process.It is connected with colorimeter by USB or Serial Port Line, is connected with alternating current source switch control rule frock by parallel port line, connects movement DEBUG frock and then is connected with whole set of television to be measured, be connected by Serial Port Line with oscilloscope by USB.
Colorimeter: as the measuring unit of system, is responsible for the state detecting television screen to be measured.After television set exchanges the start that powers on, by the control of PC, measure the optical parametric of television set, and pass data back PC process, judge whether screen normally shows.Native system adopts the CA210 of KONICA MINOLTA, and this analyzer equipment is in the field of business to be widely used.Described colorimetric analysis instrument is connected with PC by USB or Serial Port Line, follows serial ports and the usb communication agreement of standard with the communication of PC.
Alternating current source switch control rule frock: as the control unit of television set AC-input voltage to be measured, the break-make of load alternating current source.By the control of PC, be switched on or switched off the alternating current source of TV to be measured, main devices is solid-state relay, pcb board, the safe frock box of PVC.Described alternating current source switch control rule frock is connected with PC by parallel port line.
Movement debugging tool: the middleware be connected with television set as PC, makes PC using the serial equipment process of different television sets as a standard, can be responsible for the state detecting Core of TV set.By the control of PC, complete the communication of PC and Core of TV set, read the DEBUG information of movement, judge whether movement normally starts and steady operation.It is connected with PC by USB or Serial Port Line, and the serial communication protocol of standard is followed in communication, also can use the virtual serial port of USB; And be connected with television set by VGA line, based on serial communication, but specifically defined by Core of TV set master chip, different chip is different.
Fixed signal source: export signal specific to television set to be measured, make television set show specific picture, be connected with television set by HDMI wire or AV line.
Oscilloscope: as the measuring unit of system, the operating state of load detecting TV set power system.After television set exchanges the start that powers on, by the control of PC, voltage, the current parameters of testing power supply system core point, and pass data back PC process, judge that whether power-supply system work is normal.Native system adopts power section oscilloscope, and this oscilloscope is in the field of business to be widely used.Described oscilloscope is connected with PC by Serial Port Line, follows the serial communication protocol of standard with the communication of PC.
Whole set of television to be measured: as the object element of system, the object of whole system is whether detect television set to be measured each several part Circuits System in alternating-current switch machine process can normally start and steady operation.
Based on said detecting system realize to TV alternating-current switch machine test detection method flow process see Fig. 2, it comprises:
1, after switching on and shutting down control testing software startup, select test pattern (according to the change of AC power make-and-break time after each circulation by user, test pattern is divided into " independent assortment pattern ", " time increment mode ", " stochastic model "), and set time of AC power break-make and the parameter such as number of times, each Circuits System decision threshold (if do not arrange, then system call default setting), confirm signal wiring;
2, test formally starts, and PC makes the AC power of television set to be measured connect by alternating current source switch control rule frock, and according to the available machine time maintenance on-state preset, television set powers on start;
3, PC communicates with oscilloscope, read the real-time voltage/current parameters of power-supply system key point, judge whether power-supply system normally starts and steady operation, if be judged to be abnormal (if voltage is lower than the threshold value of setting or the electric current threshold value higher than setting), then testing process suspends, and retains test data to analyze; If be judged to be normal, then enter next step;
4, PC is communicated with Core of TV set by movement debugging tool, read movement DEBUG information, judge whether movement normally starts and steady operation, if be judged to be abnormal (if communications opportunity core aspect is without to respond or echo message does not meet the requirement of setting), then testing process suspends, and retains test data to analyze; If be judged to be normal, then enter next step;
5, PC communicates with colorimeter, read the real-time optical parameter of television screen, judge whether screen system normally starts and steady operation, if be judged to be abnormal (as brightness lower than the threshold value of setting or other optical parametrics not in the scope of setting), then testing process suspends, and retains test data to analyze; If be judged to be normal, then enter next step;
6, so far, can judge after alternating voltage is connected, the movement circuit of television set, screen circuit and power circuit all normally start and are in the state of steady operation, and once normal start process realizes;
7, afterwards, PC disconnects AC source of TV. set, and the unused time according to presetting remains open state, refreshes display " normal boot-strap number of times " and " flow cycles number of times " in software interface specific location simultaneously;
8, so far, complete alternating-current switch machine circulation is completed once.Now, system reaches default cycle-index by judging whether, if do not reach, then refreshes the make-and-break time of AC power according to test pattern, and enters and circulate next time; If reach, then exit and test and point out " test completes ".
Claims (5)
1. one kind is applied to the detection system of TV alternating-current switch machine test, comprise PC, fixed signal source, whole set of television to be measured, AC power, it is characterized in that, also comprise the colorimeter be installed on before television screen to be measured be electrically connected with described PC, and the ac power switch be electrically connected with described PC, AC power, television set to be measured respectively controls frock, the movement debugging tool be electrically connected with television set to be measured and described PC respectively, and the oscilloscope be electrically connected with described PC and television set to be measured respectively;
Described PC, as the control core of whole system, is responsible for issuing command, controls testing process, receives data and carries out analyzing and processing and storage to information, controls the operation of whole system;
Described colorimeter, as the measuring unit of system, is responsible for the state detecting television screen to be measured;
Described alternating current source switch control rule frock, as the control unit of television set AC-input voltage to be measured, under the control of PC, is switched on or switched off the AC power of TV to be measured;
The middleware that described movement debugging tool is connected with television set as PC, under the control of PC, completes the communication of PC and Core of TV set, reads the DEBUG information of movement, judges whether movement normally starts and steady operation;
Described fixed signal source is responsible for exporting signal specific to television set to be measured, makes television set show specific picture;
Described oscilloscope is as the measuring unit of system, the operating state of load detecting TV set power system, after television set exchanges the start that powers on, by the control of PC, voltage, the current parameters of testing power supply system core point, and pass data back PC process, judge that whether power-supply system work is normal.
2. as claimed in claim 1 a kind of be applied to TV alternating-current switch machine test detection system, it is characterized in that, described PC is connected with colorimeter by USB or Serial Port Line, be connected with alternating current source switch control rule frock by parallel port line, connect movement debugging tool by USB and then be connected with whole set of television to be measured, being connected with oscilloscope by Serial Port Line.
3. be applied to a detection method for TV alternating-current switch machine test, it is characterized in that, comprising:
A.PC machine controls the connection of AC source of TV. set to be measured, and keeps on-state according to the available machine time of presetting, and television set to be measured powers on start;
B.PC machine communicates with oscilloscope, read the real-time voltage/current parameters of power-supply system key point, according to the comparison of measured parameter value with setting threshold, judge whether power-supply system normally starts and steady operation, start and steady operation if normal, enter step C, otherwise time-out is tested and retains test data for analysis;
Whether normally C.PC machine is communicated with Core of TV set by movement debugging tool, reads movement DEBUG information, judge movement startup also steady operation, start and steady operation, then enter step D, otherwise time-out is tested and retains test data for analysis if normal;
D.PC machine communicates with colorimeter, read the real-time optical parameter of television screen, the parameter area of setting whether is met according to measured parameter value, judge whether screen system normally starts and steady operation, start and steady operation if normal, then enter step e, otherwise time-out is tested and retains test data for analysis;
E.PC machine disconnects the AC power of television set, and remains open state according to the unused time of presetting;
F. system judges whether to reach default cycle-index, if do not reach, then refreshes the make-and-break time of AC power and cycle-index according to test pattern, and enters and circulate next time; If reach, then exit test.
4. as claimed in claim 3 a kind of be applied to TV alternating-current switch machine test detection method, it is characterized in that, in step, also comprise:
After switching on and shutting down control testing software startup, user selects test pattern and sets time and number of times, each Circuits System decision threshold parameter of AC power break-make.
5. as claimed in claim 4 a kind of be applied to TV alternating-current switch machine test detection method, it is characterized in that, described test pattern, according to the change of AC power make-and-break time after each circulation, is divided into " independent assortment pattern ", " time increment mode ", " stochastic model ".
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| CN105704484A (en) * | 2016-01-18 | 2016-06-22 | 四川长虹电器股份有限公司 | Testing device and method for simulating user operation on TV set |
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| CN107371018A (en) * | 2017-07-31 | 2017-11-21 | 深圳市帆泰检测技术有限公司 | Television set early stage endurance testing device and method |
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| CN109005459A (en) * | 2018-08-01 | 2018-12-14 | 四川长虹电器股份有限公司 | A method of the detection smart television application starting time |
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