CN102621481B - System and method for automatically diagnosing fault of circuit board - Google Patents
System and method for automatically diagnosing fault of circuit board Download PDFInfo
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- CN102621481B CN102621481B CN201210121609.5A CN201210121609A CN102621481B CN 102621481 B CN102621481 B CN 102621481B CN 201210121609 A CN201210121609 A CN 201210121609A CN 102621481 B CN102621481 B CN 102621481B
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Abstract
The invention discloses a system for automatically diagnosing a fault of a circuit board. The system comprises a testing probe, a signal excitation device, a signal testing device, a central control machine and a robot movement mechanism, wherein the central control machine controls the signal excitation device; the signal excitation device is connected with a signal excitation end of a circuit board; the testing probe acquires data of a tested point of the circuit board to be transmitted to the signal testing device; the signal testing device processes the data and transmits the data to the central control machine; the central control machine controls the robot movement mechanism; the robot movement mechanism is used for controlling the testing probe to move; and the testing probe is used for testing the fault of the circuit board. The robot movement mechanism is controlled to drive the testing probe to move to a target testing point by the central control machine, so that fault diagnosis of the circuit board is fully automatically tested, manual operation is replaced by the robot movement mechanism, and manual labor is saved; and moreover, the fault of the circuit board can be accurately tested, and the system is convenient to use.
Description
Technical field
The present invention relates to Fault Diagnosis of Circuit Board device, particularly relate to a kind of system and the diagnostic method that are automatically carried out Fault Diagnosis of Circuit Board by robot motion mechanism.
Background technology
At present, the use of electronic product gets more and more, and when electronic product breaks down, often needs to carry out fault diagnosis to circuit board wherein.The Chinese patent application file being " CN 101806857A " as publication number discloses a kind of online fault diagnostic apparatus for circuit board, include host computer for carrying out online signal transacting and fault diagnosis and for providing desired signal for circuit-under-test plate and uploading the slave computer of detecting information, host computer and slave computer adopt universal serial bus to be connected and communicate.Host computer adopts portable notebook computer, in-built Failure Detection Expert System Software, slave computer function comprises generation control and test data collection and the analysis ratiocination etc. of pumping signal, carries out the fault diagnosis of circuit board or components and parts in conjunction with fault diagnosis expert system.After on the interfacing equipment that slave computer received by circuit-under-test plate, various pumping signal is applied to circuit-under-test plate by PC control slave computer, then the collection of response signal is carried out, according to collection result, startup separator diagnostic expert system, by localization of fault to replaceable components and parts, realize the on-line fault diagnosis to electronic devices and components.For another example the patent No. is disclose a kind of H5 type PCM intelligent maintaining detector in the Chinese patent document of " 200820182844.2 ", detects PCM circuitry plate and keeps in repair.It is by the trace routine in CPU execute store, control detection signal to produce and control module, clock control and cross-connection unit, ringing-current generator send detection signal to circuit board, the reaction signal of the circuit board to be detected that Probing pen extracts is read from data acquisition unit, detection signal normal value in the parameters such as the amplitude of reaction signal, frequency, dutycycle and storer is compared, judge whether normal, the test point being provided test result by Maintenance Expert System database or detected further.
As shown in the above, current Fault Diagnosis of Circuit Board is all carry out fault diagnosis by signal-testing apparatus, signal exciting bank, debug machine, test probe pen to circuit board, but all need the artificial test probe pen that uses to detect impact point, thus data acquisition is carried out to the leg signal of the components and parts on circuit board.This artificial use test probe pen carries out the method not only waste of manpower tested, and easily occurs mistake, very inconvenient.
Summary of the invention
The object of this invention is to provide a kind of System of Circuit-board Hitch Diagnosis and automatic diagnosis method, do not need manual operation to test probe pen, automatically can carry out fault diagnosis to circuit board.
The present invention adopts following technical proposals: a kind of board failure auto-check system, comprise test probe pen, signal exciting bank, signal-testing apparatus and center control machine, the signal output part connection signal proving installation of test probe pen, signal-testing apparatus connects center control machine by communication interface, center control machine is by communication interface connection signal exciting bank, the signal output part of signal exciting bank is used for the signal excitation end of connecting circuit board, also comprise robot motion mechanism, the control signal of described center control machine connects the control signal input end of machine robot movement mechanism by communication interface, robot motion mechanism is used for controlling test probe pen and moves, test probe pen is used for testing circuit board fault.
Described robot motion mechanism is integrally formed to motion, Y-direction motion, Z-direction motion by X, and X is all fixed with for the first motor of brought into motion mechanism kinematic, the second motor and the 3rd motor to the end of motion, Y-direction motion, Z-direction motion; Described test probe pen is by probe pen support installing in the bottom of Z-direction motion, and robot motion mechanism drives test probe pen respectively to X, Y, Z-direction motion.
The first described motor, the second motor and the 3rd motor are servomotor, center control machine controls the motion of the first servomotor, the second servomotor and the 3rd servomotor by communication interface respectively by servo-control system, first servomotor connects Z-direction motion by rotating translation converting means, makes Z-direction motion be X to motion; Second servomotor connects X to motion by rotating translation converting means, makes X to the motion of motion Y-direction, and the 3rd servomotor connects probe pen support by rotating translation converting means, and probe pen support Z-direction is moved.
Described probe pen internal stent is provided with probe pen protection mechanism, and probe pen protection mechanism is pressure transducer, and test probe pen top Bonding pressure sensor, the signal output part of pressure transducer is connected to center control machine.
Also comprise circuit board support and board support platform, circuit board support is arranged on board support platform, and circuit board support is used for placing circuit-under-test plate and makes circuit-under-test plate and board support platform parallel; Described X is to motion, Y-direction motion and board support platform parallel, and Z-direction motion is vertical with board support platform.
A kind of board failure automatic diagnosis method, comprises the following steps: (1), center control machine send pumping signal by signal exciting bank to circuit-under-test plate, makes circuit-under-test plate be in it in normal operating conditions; (2), center control machine according to the coordinate information of the tested pilot be set up, send control command to robot motion mechanism, make robot motion mechanism drive test probe pen motion, touch measured target point; (3), test probe pen start measure, the data of collection are sent to signal-testing apparatus; (4), center control machine receive signal-testing apparatus send test data after judge whether circuit-under-test plate breaks down, if break down, then stop measure; If do not break down, then return step (2), carry out the test of next impact point.
Also comprise in described step (2) and judge that probe pen contacts good step: be i.e. the measured value of center control machine detected pressures sensor, when pressure reaches setting value, center control machine exports control signal makes the 3rd servomotor stop operating.
The present invention drives test probe pen to carry out moving to target detection point by center control machine control motion structure, thus the full-automatic testing of realizing circuit plate fault diagnosis, manual operation is replaced with robot motion mechanism, save manpower, accurate positioning, can test accurately, very easy to use; By test probe pen top probe pen protection mechanism is set, ensure that test probe pen both good contact to measured point, do not destroy again circuit-under-test plate and test probe pen; Circuit board support and support platform ensure that circuit board is in by the state of stable support.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present invention;
Fig. 2 is structural representation of the present invention.
Embodiment
As shown in Figure 1 and Figure 2, a kind of board failure auto-check system of the present invention, comprise test probe pen, signal exciting bank, signal-testing apparatus, also comprise center control machine, robot motion mechanism, wherein center control machine adopts computing machine.Described robot motion mechanism is integrally formed to motion 21, Y-direction motion 22, Z-direction motion 23 by X, X is all fixed with the first servomotor 11, second servomotor 12 for brought into motion mechanism kinematic and the 3rd servomotor 13 to the end of motion 21, Y-direction motion 22, Z-direction motion 23, center control machine controls the first servomotor 11, second servomotor 12 by servo-control system and the 3rd servomotor 13 moves.First servomotor 11 connects Z-direction motion 23 by rotating translation converting means, makes Z-direction motion 23 drive probe pen to move in X-direction; Second servomotor 12 turns translation device by rotation and connects X to motion 21, and X is moved in the Y direction to motion 21; 3rd servomotor 13 turns translation device by rotation and connects card extender 5, probe pen support 3 is arranged on card extender 5, described test probe pen 4 is fixed by probe pen support 3, and the probe of probe pen exposes in the bottom of probe pen support 3, thus makes card extender 5 drive test probe pen 4 to move in Z-direction.Therefore robot motion mechanism ensure that test probe pen 4 can be moved in X-direction, Y-direction, Z-direction.Rotation translation converting means wherein described in the present embodiment is the device rotation of servomotor being converted to linear translation, adopts ball-screw to complete.To move in the Y direction to motion 21 for X and be described: the second servomotor 12 rotates and drives the ball-screw of Y-direction motion 22 inside to rotate, thus the nut on drive ball-screw carries out Y-direction motion, nut is fixedly connected with to motion 21 with X by card extender 10, thus drives X also to carry out Y-direction motion to motion 21.Z-direction motion 23 the motion of X-direction and card extender 5 the same at the motion principle of Z-direction, do not repeat them here.Described probe pen support 3 inside is provided with probe pen protection mechanism; probe pen protection mechanism is pressure transducer; the probes touch of test probe pen 4 changes to the pressure of pressure transducer during circuit board; when reaching setting value, center control machine receives signal output control signal makes the 3rd servomotor 13 stop operating.Therefore pressure transducer is guaranteed to test probe pen 4 both good contact measured points, does not destroy again circuit-under-test plate 6 and test probe pen 4.Board support platform 8 is bases of board failure auto-check system, circuit board support 7 is arranged on board support platform 8, circuit board support 7 is used for placing circuit-under-test plate 6, circuit board support 7 is guaranteed to prop and parallel with board support platform 8 stable for circuit-under-test plate 6, X is parallel with board support platform 8 to motion 21, Y-direction motion 22, and Z-direction motion 23 is vertical with board support platform 8.Described center control machine exports control signal control machine robot movement mechanism and moves, thus drive test probe pen 4 to move, test probe pen 4 is used for testing circuit board fault, the signal output part of test probe pen 4 is transferred to signal-testing apparatus by signal transmssion line 9, signal-testing apparatus is connected with center control machine by communication interface, center control machine controls exciting bank output drive signal, the signal excitation end of the signal output part connecting circuit board of signal exciting bank.Signal exciting bank sends excitation to circuit-under-test plate, thus makes circuit board be in normal operating conditions, and signal exciting bank needs configuration, as equipment such as direct supply, signal source, Arbitrary Waveform Generator, digital signal generations according to user.Signal-testing apparatus accepts the data that probe pen gathers, and carries out treatment and analysis, can need configuration, as multimeter, oscillograph, frequency spectrograph etc. according to user.
As shown in Figure 1 and Figure 2, the method of board failure automatic diagnosis of the present invention, comprise the following steps: (1), center control machine control signal exciting bank send pumping signal to circuit-under-test plate, center control machine also can be given an order to circuit-under-test plate, normal operating conditions when making circuit-under-test plate be in test;
(2), center control machine according to the coordinate information of tested pilot, send control command to robot motion mechanism, test probe pen 4 moved and touches measured target point; Wherein also comprise and judge that test probe pen 4 contacts good step: be i.e. the measured value of center control machine detected pressures sensor, when pressure reaches setting value, center control machine exports control signal makes the 3rd servomotor 13 stop operating, and reaches and makes probe not only good contact circuit board but also do not damage the object of circuit board;
(3), test probe pen 4 start measure, the data of collection are transferred to signal-testing apparatus; Signal-testing apparatus is sent to center control machine by after test data process;
(4), center control machine receive signal-testing apparatus send data after judge whether circuit-under-test plate breaks down, if break down, then stop measure; If do not break down, then return step (2), carry out the test of next impact point.
Claims (3)
1. a board failure auto-check system, comprise test probe pen, signal exciting bank, signal-testing apparatus and center control machine, the signal output part connection signal proving installation of test probe pen, signal-testing apparatus connects center control machine by communication interface, center control machine is by communication interface connection signal exciting bank, the signal output part of signal exciting bank is used for the signal excitation end of connecting circuit board, it is characterized in that: also comprise robot motion mechanism, the control signal of described center control machine connects the control signal input end of machine robot movement mechanism by communication interface, robot motion mechanism is used for controlling test probe pen and moves, test probe pen is used for testing circuit board fault,
Described robot motion mechanism is integrally formed to motion, Y-direction motion, Z-direction motion by X, and X is all fixed with for the first motor of brought into motion mechanism kinematic, the second motor and the 3rd motor to the end of motion, Y-direction motion, Z-direction motion; Described test probe pen is by probe pen support installing in the bottom of Z-direction motion, and robot motion mechanism drives test probe pen respectively to X, Y, Z-direction motion;
The first described motor, the second motor and the 3rd motor are servomotor, center control machine controls the motion of the first servomotor, the second servomotor and the 3rd servomotor by communication interface respectively by servo-control system, first servomotor connects Z-direction motion by rotating translation converting means, makes Z-direction motion be X to motion; Second servomotor connects X to motion by rotating translation converting means, makes X to the motion of motion Y-direction, and the 3rd servomotor connects probe pen support by rotating translation converting means, and probe pen support Z-direction is moved;
Described probe pen internal stent is provided with probe pen protection mechanism, and probe pen protection mechanism is pressure transducer, and test probe pen top Bonding pressure sensor, the signal output part of pressure transducer connects the signal input part of center control machine.
2. board failure auto-check system according to claim 1, it is characterized in that: also comprise circuit board support and board support platform, circuit board support is arranged on board support platform, and circuit board support is used for placing circuit-under-test plate and makes circuit-under-test plate and board support platform parallel; Described X is to motion, Y-direction motion and board support platform parallel, and Z-direction motion is vertical with board support platform.
3. a board failure automatic diagnosis method, is characterized in that: comprise the following steps: (1), center control machine send pumping signal by signal exciting bank to circuit-under-test plate, makes circuit-under-test plate be in it in normal operating conditions; (2), center control machine according to the coordinate information of the tested pilot be set up, send control command to robot motion mechanism, make robot motion mechanism drive test probe pen motion, touch measured target point; (3), test probe pen start measure, the data of collection are sent to signal-testing apparatus; (4), center control machine receive signal-testing apparatus send test data after judge whether circuit-under-test plate breaks down, if break down, then stop measure; If do not break down, then return step (2), carry out the test of next impact point;
Also comprise in described step (2) and judge that probe pen contacts good step: be i.e. the measured value of center control machine detected pressures sensor, when pressure reaches setting value, center control machine exports control signal makes the 3rd servomotor stop operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121609.5A CN102621481B (en) | 2012-04-24 | 2012-04-24 | System and method for automatically diagnosing fault of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121609.5A CN102621481B (en) | 2012-04-24 | 2012-04-24 | System and method for automatically diagnosing fault of circuit board |
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| Publication Number | Publication Date |
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| CN102621481A CN102621481A (en) | 2012-08-01 |
| CN102621481B true CN102621481B (en) | 2014-12-24 |
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| CN201210121609.5A Expired - Fee Related CN102621481B (en) | 2012-04-24 | 2012-04-24 | System and method for automatically diagnosing fault of circuit board |
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Families Citing this family (13)
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| CN103853095B (en) * | 2012-11-30 | 2017-04-12 | 天津泰科激光科技股份有限公司 | Intelligent terminal comprehensive test robot |
| CN104062945B (en) * | 2013-03-18 | 2016-12-28 | 张朵 | A kind of automatic detection control method and system |
| CN104175313B (en) * | 2013-05-27 | 2018-04-17 | 深圳市精捷能电子有限公司 | Circuit board testing monitoring system and method |
| CN104155591A (en) * | 2014-07-14 | 2014-11-19 | 惠州市蓝微电子有限公司 | Current calibration equipment and method for charge management ICs |
| CN105425140A (en) * | 2015-12-17 | 2016-03-23 | 埃泰克汽车电子(芜湖)有限公司 | Testing device and testing method of PCB half-finished product |
| CN105527578A (en) * | 2016-01-14 | 2016-04-27 | 广州蓝奇电子实业有限公司 | Battery detection control system |
| CN107015137B (en) * | 2017-05-26 | 2023-12-08 | 深圳市赛伦北斗科技有限责任公司 | Circuit board detection device, system and method |
| CN107656515A (en) * | 2017-08-29 | 2018-02-02 | 浙江鉴丰电子科技有限公司 | A kind of failure detector and detection method for treadmill control system |
| US10901032B1 (en) * | 2019-09-13 | 2021-01-26 | Raytheon Company | System and method for remote intelligent troubleshooting |
| CN110837036A (en) * | 2019-11-07 | 2020-02-25 | 东南大学 | Circuit board fault automatic detection system |
| CN111015695B (en) * | 2019-12-10 | 2021-06-29 | 深圳市优必选科技股份有限公司 | Mechanical arm zero setting method and device and desktop-level mechanical arm |
| CN112557879A (en) * | 2020-12-12 | 2021-03-26 | 江西洪都航空工业集团有限责任公司 | Device for rapidly testing hardware board card of motor driver |
| CN113821011A (en) * | 2021-08-18 | 2021-12-21 | 北京机械设备研究所 | Steering engine servo electronic system batch test equipment and test method |
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| TW539858B (en) * | 2000-10-17 | 2003-07-01 | Ando Electric | IC tester adjusting unit |
| CN1555100A (en) * | 2003-12-25 | 2004-12-15 | 上海交通大学 | Glue coating package integrated robot of super thin space solar cell sheet |
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2012
- 2012-04-24 CN CN201210121609.5A patent/CN102621481B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW539858B (en) * | 2000-10-17 | 2003-07-01 | Ando Electric | IC tester adjusting unit |
| CN1555100A (en) * | 2003-12-25 | 2004-12-15 | 上海交通大学 | Glue coating package integrated robot of super thin space solar cell sheet |
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