CN102621481A - 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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- CN102621481A CN102621481A CN2012101216095A CN201210121609A CN102621481A CN 102621481 A CN102621481 A CN 102621481A CN 2012101216095 A CN2012101216095 A CN 2012101216095A CN 201210121609 A CN201210121609 A CN 201210121609A CN 102621481 A CN102621481 A CN 102621481A
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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 the board failure diagnostic device, relate in particular to a kind of system and diagnostic method that carries out the board failure diagnosis through robot motion mechanism automatically.
Background technology
At present, the use of electronic product is more and more, and electronic product often need carry out fault diagnosis to circuit board wherein when breaking down.For the one Chinese patent application file of " CN 101806857A " a kind of online fault diagnostic apparatus for circuit board is disclosed like publication number; Include the host computer that is used to carry out online signal Processing and fault diagnosis and be used to the slave computer that the circuit-under-test plate provides desired signal and uploads detecting information, host computer is connected with slave computer employing universal serial bus and communicates by letter.Host computer adopts portable notebook computer; Interior dress fault diagnosis expert system software; The slave computer function comprises generation control and the 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.Receive on the interfacing equipment of slave computer when the circuit-under-test plate after; Apply various pumping signals by the PC control slave computer to the circuit-under-test plate; Carry out the collection of response signal then,, start fault diagnosis expert system according to collection result; Localization of fault to replaceable components and parts, is realized the on-line fault diagnosis to electronic devices and components.The patent No. detects and keeps in repair PCM circuitry plate for disclosing a kind of H5 type PCM intelligence maintenance detector in the Chinese patent file of " 200820182844.2 " for another example.It is by the trace routine in the CPU execute store; Generation of control detection signal and control module, clock control and cross-connection unit, ringing-current generator send detection signal to circuit board; Read the reaction signal of the circuit board to be detected of Probing pen extraction from data acquisition unit; Detection signal normal value in parameters such as the amplitude of reaction signal, frequency, dutycycle and the storer is compared; Judge whether normally, provide test result or the further test point that detects by the maintenance expert system database.
Can know by foregoing; Present board failure diagnosis all is to visit pen through signal-testing apparatus, signal excitation device, debug machine, test circuit board is carried out fault diagnosis; But all need artificial use test to visit pen impact point is surveyed, thereby the leg signal of the components and parts on the circuit board is carried out data acquisition.The not only waste of manpower of method that pen is tested is visited in this artificial use test, and occurs mistake easily, and is very inconvenient.
Summary of the invention
The purpose of this invention is to provide a kind of board failure diagnostic system and automatic diagnosis method, do not need the manually-operated test to visit pen, can automatically carry out fault diagnosis circuit board.
The present invention adopts following technical proposals: a kind of board failure auto-check system; Comprise test spy pen, signal excitation device, signal-testing apparatus and center control machine; The signal output part that pen is visited in test connects signal-testing apparatus; Signal-testing apparatus connects center control machine through communication interface, and center control machine connects the signal excitation device through communication interface, and the signal output part of signal excitation device is used for the signal excitation end of CC plate; Also comprise robot motion mechanism; The control signal of described center control machine connects the signal input end of machine robot movement mechanism through communication interface, and robot motion mechanism is used for the control test and visits pen and move, and test is visited pen and is used for the testing circuit board fault.
Described robot motion mechanism constitutes one to motion, Z to motion to motion, Y by X, and X all is fixed with first motor, second motor and the 3rd motor that is used for driving the motion motion to motion, Y to motion, Z to the end of motion; Described test is visited pen and is installed in the bottom of Z to motion through visiting a support, and robot motion mechanism drives test and visits pen respectively to X, Y, the motion of Z direction.
Described first motor, second motor and the 3rd motor are servomotor; Center control machine is controlled first servomotor, second servomotor and the motion of the 3rd servomotor through servo-control system respectively through communication interface; First servomotor connects Z to motion through rotating the translation converting means, makes Z be X to motion to motion; Second servomotor connects X to motion through rotating the translation converting means, make X to motion Y to motion, the 3rd servomotor connects and visits a support through rotating the translation converting means, makes and visits a support Z to motion.
A described spy internal stent is provided with visits a protection mechanism, and visiting a protection mechanism is pressure transducer, and test is visited a top and connected pressure transducer, and the signal output part of pressure transducer is connected to center control machine.
Also comprise circuit board support and circuit board support platform, circuit board support is arranged on the circuit board support platform, and circuit board support is used for placing the circuit-under-test plate makes the circuit-under-test plate parallel with the circuit board support platform; Described X is parallel with the circuit board support platform to motion to motion, Y, and Z is vertical with the circuit board support platform to motion.
A kind of board failure automatic diagnosis method may further comprise the steps: (1), center control machine send pumping signal through the signal excitation device to the circuit-under-test plate, make the circuit-under-test plate be in it in normal operating conditions; (2), center control machine is according to the coordinate information of the tested pilot that is set up, sends control command to robot motion mechanism, makes robot motion mechanism drive test and visits the pen motion, touches the measured target point; (3), test visits pen and begins to measure, and the data of gathering are sent to signal-testing apparatus; (4), center control machine judges whether the circuit-under-test plate breaks down after receiving the test data that signal-testing apparatus sends, if break down, then stops measurement; If do not break down, then return step (2), carry out the test of next impact point.
Also comprise in the described step (2) and judge to visit the good step of pen contact: i.e. the measured value of center control machine detected pressures sensor, when pressure reached setting value, center control machine output control signal stopped operating the 3rd servomotor.
The present invention drives test spy pen through center control machine control robot motion structure and moves to the target test point; Thereby realize the full-automatic testing of board failure diagnosis; Replace manually-operated with robot motion mechanism, save manpower, accurate positioning; Can test accurately, very easy to use; Be provided with and visit a protection mechanism through visit a top in test, guaranteed that test visits pen and both well touched the measured point, do not destroy the circuit-under-test plate again and visit pen with test; Circuit board support and support platform guarantee that circuit board is in by the state of stable support.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention;
Fig. 2 is a structural representation of the present invention.
Embodiment
Like Fig. 1, shown in Figure 2, a kind of board failure auto-check system of the present invention comprises test spy pen, signal excitation device, signal-testing apparatus, also comprises center control machine, robot motion mechanism, and wherein center control machine adopts computing machine.Described robot motion mechanism constitutes one to motion 22, Z to motion 23 to motion 21, Y by X; X all is fixed with first servomotor 11, second servomotor 12 and three servomotor 13 that are used for drive motion motion to motion 22, Z to the end of motion 23 to motion 21, Y, and center control machine is controlled first servomotor 11, second servomotor 12 and 13 motions of the 3rd servomotor through servo-control system.First servomotor 11 connects Z to motion 23 through rotating the translation converting means, makes Z drive the spy pen to motion 23 and moves at directions X; Second servomotor 12 connects X to motion 21 through rotating translation device, and X is moved in the Y direction to motion 21; The 3rd servomotor 13 connects card extender 5 through rotating translation device; Visiting a support 3 is installed on the card extender 5; It is fixing by visiting a support 3 that pen 4 is visited in described test, and the probe of visiting pen exposes in the bottom of visiting a support 3, visits pen 4 and move in the Z direction thereby make card extender 5 drive test.Therefore robot motion mechanism has guaranteed that test spy pen 4 can move on directions X, Y direction, Z direction.Wherein the rotation translation converting means described in the present embodiment adopts ball-screw to accomplish for converting the rotation of servomotor in the device of straight line translation.Is that example describe to motion 21 in the motion of Y direction with X: second servomotor 12 rotates drive Y and is rotated to motion 22 inner ball-screws; Thereby the nut on the drive ball-screw carries out Y to motion; Nut is fixedly connected to motion 21 with X through card extender 10, also carries out Y to motion thereby drive X to motion 21.Z is the same at the motion principle of Z direction at the motion and the card extender 5 of directions X to motion 23, repeats no more at this.A described spy support 3 set inside have a protection mechanism of spy; Visiting a protection mechanism is pressure transducer; The pressure of pressure transducer changed when the probe of test spy pen 4 touched circuit board; When reaching setting value, center control machine receives signal output control signal stops operating the 3rd servomotor 13.Therefore pressure transducer guarantees that test visits pen 4 and both well contacted the measured point, does not destroy circuit-under-test plate 6 again and visits pen 4 with test.Circuit board support platform 8 is bases of board failure auto-check system; Circuit board support 7 is arranged on the circuit 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 circuit board support platform 8 circuit-under-test plate 6 is stable, and X is parallel with circuit board support platform 8 to motion 22 to motion 21, Y, and Z is vertical with circuit board support platform 8 to motion 23.Described center control machine output control signal control robot motion moves; Thereby driving test spy pen 4 moves; Test is visited pen 4 and is used for the testing circuit board fault, and the signal output part that pen 4 is visited in test is transferred to signal-testing apparatus through signal transmssion line 9, and signal-testing apparatus is connected with center control machine through communication interface; Center control machine control exciting bank output drive signal, the signal excitation end of the signal output part CC plate of signal excitation device.The signal excitation device sends excitation to the circuit-under-test plate, thereby makes circuit board be in normal operating conditions, and the signal excitation device is according to the configuration of user's needs, like equipment such as direct supply, signal source, random wave generator, digital signal generations.Signal-testing apparatus is accepted to visit the data that pen is gathered, and analyzes and handles, can be according to the configuration of user's needs, like multimeter, oscillograph, frequency spectrograph etc.
Like Fig. 1, shown in Figure 2; The method of board failure automatic diagnosis of the present invention; May further comprise the steps: (1), center control machine control signal exciting bank send pumping signal to the circuit-under-test plate; Center control machine also can be given an order to the circuit-under-test plate, the normal operating conditions when making the circuit-under-test plate be in test;
(2), center control machine is according to the coordinate information of tested pilot, sends control command to robot motion mechanism, make test visit pen 4 motions and touch the measured target point; Wherein also comprise and judge that test visits the good step of pen 4 contacts: be i.e. the measured value of center control machine detected pressures sensor; When pressure reaches setting value; Center control machine output control signal stops operating the 3rd servomotor 13, reaches the purpose that makes the not only good contact circuit plate of probe but also do not damage circuit board;
(3), test visits pen 4 and begins to measure, with the data transmission of gathering to signal-testing apparatus; Signal-testing apparatus is sent to center control machine after test data is handled;
(4), center control machine judges whether the circuit-under-test plate breaks down after receiving the data that signal-testing apparatus sends, if break down, then stops measurement; If do not break down, then return step (2), carry out the test of next impact point.
Claims (7)
1. board failure auto-check system; Comprise test spy pen, signal excitation device, signal-testing apparatus and center control machine; The signal output part that pen is visited in test connects signal-testing apparatus; Signal-testing apparatus connects center control machine through communication interface, and center control machine connects the signal excitation device through communication interface, and the signal output part of signal excitation device is used for the signal excitation end of CC plate; It is characterized in that: also comprise robot motion mechanism; The control signal of described center control machine connects the signal input end of machine robot movement mechanism through communication interface, and robot motion mechanism is used for the control test and visits pen and move, and test is visited pen and is used for the testing circuit board fault.
2. board failure auto-check system according to claim 1; It is characterized in that: described robot motion mechanism constitutes one to motion, Z to motion to motion, Y by X, and X all is fixed with first motor, second motor and the 3rd motor that is used for driving the motion motion to motion, Y to motion, Z to the end of motion; Described test is visited pen and is installed in the bottom of Z to motion through visiting a support, and robot motion mechanism drives test and visits pen respectively to X, Y, the motion of Z direction.
3. board failure auto-check system according to claim 2; It is characterized in that: described first motor, second motor and the 3rd motor are servomotor; Center control machine is controlled first servomotor, second servomotor and the motion of the 3rd servomotor through servo-control system respectively through communication interface; First servomotor connects Z to motion through rotating the translation converting means, makes Z be X to motion to motion; Second servomotor connects X to motion through rotating the translation converting means, make X to motion Y to motion, the 3rd servomotor connects and visits a support through rotating the translation converting means, makes and visits a support Z to motion.
4. board failure auto-check system according to claim 3; It is characterized in that: a described spy internal stent is provided with visits a protection mechanism; Visiting a protection mechanism is pressure transducer; Test is visited a top and is connected pressure transducer, and the signal output part of pressure transducer connects the signal input part of center control machine.
5. according to the arbitrary described board failure auto-check system of claim 1 to 4; It is characterized in that: also comprise circuit board support and circuit board support platform; Circuit board support is arranged on the circuit board support platform, and circuit board support is used for placing the circuit-under-test plate makes the circuit-under-test plate parallel with the circuit board support platform; Described X is parallel with the circuit board support platform to motion to motion, Y, and Z is vertical with the circuit board support platform to motion.
6. board failure automatic diagnosis method, it is characterized in that: may further comprise the steps: (1), center control machine send pumping signal through the signal excitation device to the circuit-under-test plate, make the circuit-under-test plate be in it in normal operating conditions; (2), center control machine is according to the coordinate information of the tested pilot that is set up, sends control command to robot motion mechanism, makes robot motion mechanism drive test and visits the pen motion, touches the measured target point; (3), test visits pen and begins to measure, and the data of gathering are sent to signal-testing apparatus; (4), center control machine judges whether the circuit-under-test plate breaks down after receiving the test data that signal-testing apparatus sends, if break down, then stops measurement; If do not break down, then return step (2), carry out the test of next impact point.
7. board failure auto-check system according to claim 6; It is characterized in that: also comprise in the described step (2) and judge to visit the good step of pen contact: i.e. the measured value of center control machine detected pressures sensor; When pressure reached setting value, center control machine output control signal stopped operating the 3rd servomotor.
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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210121609.5A CN102621481B (en) | 2012-04-24 | 2012-04-24 | System and method for automatically diagnosing fault of circuit board |
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| CN102621481A true CN102621481A (en) | 2012-08-01 |
| CN102621481B CN102621481B (en) | 2014-12-24 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103853095A (en) * | 2012-11-30 | 2014-06-11 | 天津泰科激光科技发展有限公司 | Intelligent terminal comprehensive test robot |
| CN104062945A (en) * | 2013-03-18 | 2014-09-24 | 张朵 | Automatic detection control method and system |
| 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 |
| CN104175313A (en) * | 2013-05-27 | 2014-12-03 | 富泰华工业（深圳）有限公司 | Circuit board test monitoring system and method |
| 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 |
| CN107015137A (en) * | 2017-05-26 | 2017-08-04 | 深圳市赛伦北斗科技有限责任公司 | A kind of 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 |
| CN110837036A (en) * | 2019-11-07 | 2020-02-25 | 东南大学 | Circuit board fault automatic detection system |
| CN111015695A (en) * | 2019-12-10 | 2020-04-17 | 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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| US10901032B1 (en) * | 2019-09-13 | 2021-01-26 | Raytheon Company | System and method for remote intelligent troubleshooting |
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- 2012-04-24 CN CN201210121609.5A patent/CN102621481B/en not_active Expired - Fee Related
Patent Citations (2)
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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 |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103853095A (en) * | 2012-11-30 | 2014-06-11 | 天津泰科激光科技发展有限公司 | Intelligent terminal comprehensive test robot |
| CN104062945A (en) * | 2013-03-18 | 2014-09-24 | 张朵 | Automatic detection control method and system |
| CN104062945B (en) * | 2013-03-18 | 2016-12-28 | 张朵 | A kind of automatic detection control method and system |
| CN104175313A (en) * | 2013-05-27 | 2014-12-03 | 富泰华工业（深圳）有限公司 | Circuit board test monitoring system and method |
| 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 |
| CN107015137A (en) * | 2017-05-26 | 2017-08-04 | 深圳市赛伦北斗科技有限责任公司 | A kind of 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 |
| CN110837036A (en) * | 2019-11-07 | 2020-02-25 | 东南大学 | Circuit board fault automatic detection system |
| CN111015695A (en) * | 2019-12-10 | 2020-04-17 | 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 |
| 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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| CN102621481B (en) | 2014-12-24 |
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