CN109471422B - Aging tool control system and detection method thereof - Google Patents
Aging tool control system and detection method thereof Download PDFInfo
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- CN109471422B CN109471422B CN201811347359.0A CN201811347359A CN109471422B CN 109471422 B CN109471422 B CN 109471422B CN 201811347359 A CN201811347359 A CN 201811347359A CN 109471422 B CN109471422 B CN 109471422B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
- G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
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Abstract
The invention discloses an aging tool control system and a detection method thereof, and the aging tool control system comprises an aging tool bottom plate, a function detection computer, a control enabling signal module, a CAN interface module, a power supply module, an analog signal input module and a PWM signal module, wherein VCU signal ports corresponding to the control enabling signal module, the CAN interface module, the power supply module, the analog signal input module and the PWM signal module are respectively installed on the aging tool bottom plate, the whole aging detection process is initially set to be 4 hours, the interface of the function detection computer only has two buttons which need manual operation for detection start and report printing, all signal detection and information interaction in the detection process are automatically completed at the background, and meanwhile, the interface displays the working indication and the state indication of each VCU to be detected in real time.
Description
Technical Field
The invention relates to a tool control system and a detection method, in particular to an aging tool control system and a detection method thereof.
Background
The existing VCU aging adopts one-to-one aging tools, each aging tool can only age one VCU at the same time, and the detected aging needs a long time, so that the working efficiency is extremely low. Besides the low aging efficiency, the traditional aging tool also has the following problems and disadvantages: the aging time is not controlled enough, the aging effect is not enough when the aging time is too short, and the production progress of detection is influenced when the aging time is too long; VCUs cannot be read simultaneously in the aging process, and the reliability of VCU reading and the stability of detection work cannot be ensured in real time; when problems occur in the VCU reading process, the aging tool cannot identify the types of the problems occurring in the VCU reading process, and is inconvenient for workers to maintain; the detection plug is directly inserted into an aged tool, and after repeated plugging, the socket of the aged tool is easily damaged, so that the service life of the aged tool is greatly influenced.
Disclosure of Invention
The invention aims to provide an aging tool control system and a detection method thereof, which have the advantages of automatic completion and real-time display and are used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an aging tool control system comprises an aging tool bottom plate, a function detection computer, a control enabling signal module, a CAN interface module, a power supply module, an analog signal input module and a PWM signal module, wherein a VCU signal port corresponding to the control enabling signal module, the CAN interface module, the power supply module, the analog signal input module and the PWM signal module is respectively arranged on the aging tool bottom plate, the VCU signal port is also electrically connected with an AD acquisition port on the aging tool bottom plate through a control line, and the output end of the AD acquisition port is connected with the function detection computer;
the control enabling signal module is provided with a path I/O signal by a function detection computer, the signal is respectively connected with a VCU signal port and used as a detection result output enabling signal, when the signal is effective, the detection computer is represented to carry out function detection on the VCU, and the other VCUs do not react to the input detection signal and information at the moment;
the CAN interface module is mainly used for completing information transmission between a target VCU to be tested and the function detection computer, completing acquisition and output of corresponding signals according to test content information and feeding back to the function detection computer through the CAN interface;
in the aging test process of the power supply module, three power supply outputs of +9V, +12V and +16V can be provided for a VCU to be tested to use according to the test process, and the power of the programmable power supply is not less than 200W;
the analog signal input module outputs 6 paths of analog signals to the aging chemical installation plate 1 through the function detection computer and is sequentially connected with the AD acquisition port through the control enabling signal module;
the PWM signal module comprises PWM input signal detection and PWM output signal detection.
Furthermore, the corresponding VCUs to be detected are placed at the VCU signal ports, and the signals to be detected corresponding to each VCU are connected by a bus-type topological structure.
Furthermore, the PWM input signal detection is realized by outputting 2 paths of PWM waves with fixed frequency by the function detection computer and simultaneously enabling the VCU to be tested to acquire PWM signals one by controlling an enabling signal; and (3) detecting a PWM output signal, enabling the VCU to be detected successively by the function detection computer through a control enabling signal, and sending a PWM output signal request through the CAN interface module.
The invention provides another technical scheme, and the detection method of the aging tool control system comprises the following steps;
s1: after the system is initialized, all VCUs to be detected are placed on an aging tool bottom plate, an enabling signal module is controlled, a function detection computer is used for controlling the enabling signal module in a periodic polling mode, and detection is carried out after one VCU is gated once;
s2: the analog signal input module sends a test signal to a VCU to be detected, whether the test signal passes the detection is determined, the PWM input signal detection is executed if the test signal passes the detection, and a fault is reported if the test signal does not pass the detection;
s3: detecting the PWM input signal, determining whether the detection is passed, if the detection is passed, executing the detection of the PWM output signal, and if the detection is not passed, reporting a fault;
s4: and (3) detecting the PWM output signal, confirming whether the PWM output signal passes the detection, enabling the VCU if the PWM output signal passes the detection, reporting the fault if the PWM output signal does not pass the detection, starting the detection of the next VCU to confirm whether the aging time is up, finishing the aging time if the aging time is up, and performing periodic detection if the aging time is not up.
Furthermore, the whole aging detection process is initially set to be 4 hours, the interface of the function detection computer only has two buttons which need manual operation for detection start and report printing, and all signal detection and information interaction in the detection process are automatically completed in the background.
Compared with the prior art, the invention has the beneficial effects that:
the aging tool control system and the detection method thereof have the advantages that the whole aging detection process is initially set to be 4 hours, only two buttons which need manual operation are used for detection starting and report printing on an interface of a function detection computer, all signal detection and information interaction in the detection process are automatically completed in a background, and meanwhile, the interface displays the work indication and the state indication of each VCU to be detected in real time.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a wiring topology of the present invention;
FIG. 3 is a software flow diagram of the present invention;
FIG. 4 is a schematic diagram of the detection interface of the present invention.
In the figure: 1. aging the tool bottom plate; 11. a VCU signal port; 12. an AD acquisition port; 2. a function detection computer; 3. a control enable signal module; 4. a CAN interface module; 5. a power supply module; 6. an analog signal input module; 7. and a PWM signal module.
Detailed Description
The technical scheme in the embodiment of the invention will be made clear below by combining the attached drawings in the embodiment of the invention; fully described, it is to be understood that the described embodiments are merely exemplary of some, but not all, embodiments of the invention and that all other embodiments, which can be derived by one of ordinary skill in the art based on the described embodiments without inventive faculty, are within the scope of the invention.
Referring to fig. 1-4, an aging tool control system includes an aging tool bottom plate 1, a function detection computer 2, a control enable signal module 3, a CAN interface module 4, a power supply module 5, an analog signal input module 6 and a PWM signal module 7, the aging tool bottom plate 1 is respectively provided with a VCU signal port 11 corresponding to the control enable signal module 3, the CAN interface module 4, the power supply module 5, the analog signal input module 6 and the PWM signal module 7, the VCU signal port 11 is provided with corresponding VCUs to be detected, the signals to be detected corresponding to each VCU are connected by a bus-type topology structure, the VCU signal port 11 is further electrically connected with an AD acquisition port 12 on the aging tool bottom plate 1 through a control line, and an output end of the AD acquisition port 12 is connected with the function detection computer 2.
The control enabling signal module 3 provides 20I/O signals from the function detecting computer 2, the signals are respectively connected with the VCU signal ports 11 and used as detection result output enabling signals, when the signals are effective, the detection computer is represented to carry out function detection on the VCU, other VCUs do not react to the input detection signals and information at the moment, the control enabling signal module 3 is controlled by the function detecting computer 2 in a periodic polling mode, after one VCU is gated once, the function detection and CAN communication are carried out, after the detection is finished, the next VCU is enabled to carry out detection in sequence, once the fault occurs, an alarm lamp is lightened in a VCU area corresponding to the number of the monitoring screen to prompt production line workers, and if the fault occurs, after the detection time is finished for 4 hours, the detection result of each slot VCU is displayed on the monitoring screen.
The CAN interface module 4 mainly completes information transmission between a target VCU to be detected and the function detection computer 2, completes acquisition and output of corresponding signals according to test content information, feeds back the corresponding signals to the function detection computer 2 through the CAN interface, and after the function detection computer 2 and the tested VCU complete detection project commands and result feedback responses, the function detection computer 2 pulls down an enabling control signal, and the tested VCU closes the CAN communication function.
In the aging test process, the power supply module 5 can provide +9V, +12V, +16V three power outputs for the VCU to be tested according to the test process, and the power of the programmable power supply is not less than 200W.
The analog signal input module 6 outputs 6 paths of analog signals to the aging tool bottom plate 1 through the function detection computer 2, and is sequentially connected with the AD acquisition port 12 through the control enabling signal module 3.
The PWM signal module 7 includes PWM input signal detection and PWM output signal detection.
The corresponding VCUs to be detected are placed on the VCU signal port 11, and the signals to be detected corresponding to each VCU are connected in a bus-type topological structure.
The PWM input signal detection is that the function detection computer 2 outputs 2 paths of PWM waves with fixed frequency, simultaneously the VCU to be detected is enabled successively by controlling an enabling signal to carry out PWM signal acquisition, finally the VCU transmits the acquired result back to the detection computer through a CAN interface, and the detection computer carries out comparison and result judgment; and (3) detecting a PWM output signal, enabling the VCU to be detected successively by the function detection computer 2 through a control enabling signal, sending a PWM output signal request through the CAN interface module 4, outputting a corresponding PWM wave signal according to information content after the VCU to be detected receives CAN information to be detected by the function detection computer 2, detecting whether the frequency and duty ratio of the output signal of the VCU accord with the frequency and duty ratio required by a sending instruction or not by the function detection computer 2, and outputting a judgment result.
The invention provides another technical scheme, and the detection method of the aging tool control system comprises the following steps;
the method comprises the following steps: after the system is initialized, all VCUs to be detected are placed on the aging tool bottom plate 1, the enabling signal module 3 is controlled by the function detection computer 2 in a periodic polling mode, and detection is carried out after one VCU is gated once; step two: the analog signal input module 6 sends a test signal to a VCU to be detected, whether the test signal passes the detection is determined, the PWM input signal detection is executed if the test signal passes the detection, and a fault is reported if the test signal does not pass the detection;
step three: detecting the PWM input signal, determining whether the detection is passed, if the detection is passed, executing the detection of the PWM output signal, and if the detection is not passed, reporting a fault;
step four: and (3) detecting the PWM output signal, confirming whether the PWM output signal passes the detection, enabling the VCU if the PWM output signal passes the detection, reporting the fault if the PWM output signal does not pass the detection, starting the detection of the next VCU to confirm whether the aging time is up, finishing the aging time if the aging time is up, and performing periodic detection if the aging time is not up.
In summary, according to the aging fixture control system and the detection method thereof, the whole aging detection process is set to 4 hours initially, the interface of the function detection computer 2 only has two buttons for starting detection and printing report, which need manual operation, all signal detection and information interaction in the detection process are automatically completed in the background, and meanwhile, the interface displays the work indication and the state indication of each VCU to be detected in real time.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. An aging tool control system comprises an aging tool bottom plate (1), a function detection computer (2), a control enabling signal module (3), a CAN interface module (4), a power supply module (5), an analog signal input module (6) and a PWM signal module (7), and is characterized in that the aging tool bottom plate (1) is respectively provided with a VCU signal port (11) corresponding to the control enabling signal module (3), the CAN interface module (4), the power supply module (5), the analog signal input module (6) and the PWM signal module (7), the VCU signal port (11) is also electrically connected with an AD acquisition port (12) on the aging tool bottom plate (1) through a control line, and the output end of the AD acquisition port (12) is connected with the function detection computer (2);
the control enabling signal module (3) is provided with 20 paths of I/O signals by a function detection computer (2), the signals are respectively connected with a VCU signal port (11) and used as a detection result output enabling signal, when the signals are effective, the detection computer is represented to carry out function detection on the VCU, and the other VCUs do not react to the input detection signals and information at the moment;
the CAN interface module (4) mainly completes information transmission between a target VCU to be tested and the function detection computer (2), completes acquisition and output of corresponding signals according to test content information, and feeds back the corresponding signals to the function detection computer (2) through the CAN interface;
the power supply module (5) can provide +9V, +12V, +16V three kinds of power outputs for VCU to be tested to use according to the test process in the aging test process, and the power of the programmable power supply is not less than 200W; the analog signal input module (6) outputs 6 paths of analog signals to the aging chemical installation plate (1) through the function detection computer (2) and is sequentially connected with the AD acquisition port (12) through the control enabling signal module (3);
the PWM signal module (7) comprises PWM input signal detection and PWM output signal detection.
2. The aging tool control system according to claim 1, wherein: the VCUs to be detected are correspondingly arranged on the VCU signal ports (11), and the signals to be detected corresponding to each VCU are connected in a bus-type topological structure.
3. The aging tool control system according to claim 1, wherein: the PWM input signal detection is realized by outputting 2 paths of PWM waves with fixed frequency by a function detection computer (2), and meanwhile, the VCU to be detected is enabled successively by controlling an enable signal to acquire the PWM signal; and PWM output signal detection, wherein the function detection computer (2) enables the VCU to be detected successively through a control enabling signal, and sends a PWM output signal request through the CAN interface module (4).
4. The detection method of the aging tool control system according to claim 1, comprising the steps of;
s1: after a system is initialized, all VCUs to be detected are placed on an aging tool bottom plate (1), an enabling signal module (3) is controlled by a function detection computer (2) in a periodic polling mode, and detection is carried out after one VCU is gated once;
s2: the analog signal input module (6) sends a test signal to a VCU to be detected, whether the test signal passes the detection is determined, the PWM input signal detection is executed if the test signal passes the detection, and a fault is reported if the test signal does not pass the detection;
s3: detecting the PWM input signal, determining whether the detection is passed, if the detection is passed, executing the detection of the PWM output signal, and if the detection is not passed, reporting a fault;
s4: and (3) detecting the PWM output signal, confirming whether the PWM output signal passes the detection, enabling the VCU through the detection, reporting the fault if the PWM output signal does not pass the detection, starting the detection of the next VCU to confirm whether the aging time is up, ending the aging time if the aging time is up, and carrying out periodic detection if the aging time is not up.
5. The method for detecting the aging tool control system according to claim 4, wherein the whole aging detection process is set to 4 hours, the interface of the function detection computer (2) only has two buttons of detection start and report printing which need manual operation, and all signal detection and information interaction in the detection process are automatically completed in the background.
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