CN104678986B - Variable flow control unit automatic test approach, controller and Auto-Test System - Google Patents
Variable flow control unit automatic test approach, controller and Auto-Test System Download PDFInfo
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- CN104678986B CN104678986B CN201310684732.2A CN201310684732A CN104678986B CN 104678986 B CN104678986 B CN 104678986B CN 201310684732 A CN201310684732 A CN 201310684732A CN 104678986 B CN104678986 B CN 104678986B
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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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
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Abstract
The present invention, which provides a kind of Variable flow control unit automatic test approach, controller and Auto-Test System, this method, to be included：Controller receives the test instruction of test device, and the test instruction includes encouraging the information of passage and the information of exiting form；The controller determines the excitation passage in the controller according to the information of the excitation passage, and tested Variable flow control unit is tested using pumping signal corresponding with the exiting form based on the excitation passage；Test result is sent to the test device by the controller.The Variable flow control unit automatic test approach, acquisition all no manual interventions of test process and test result, testing efficiency are high.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of Variable flow control unit automatic test approach, controller and
Auto-Test System.
Background technology
Track traffic is to significantly improve the mode of traffic carrying ore structure ability, can provide basic guarantor to alleviate traffic congestion
Barrier.With developing rapidly for traffic transport industry, the demand of electric locomotive is continuously increased, and Variable flow control unit is as electric locomotive
The demand of core control part also dramatically increase.
Variable flow control unit is after batch production out, it is necessary to test its each control signal, to detect unsteady flow control
The integrality of Elementary Function processed and design to product verifies.The method of existing detection Variable flow control unit is mainly pin
The project to be detected of test product is treated, test platform is built by manual operation and records test result.
The above-mentioned method of testing to Variable flow control unit, the acquisition of test process and test result need manual intervention ability
Carry out, testing efficiency is low.
The content of the invention
The present invention provides a kind of Variable flow control unit automatic test approach, controller and Auto-Test System, for solving
When testing in the prior art Variable flow control unit, test process and test result need to could be completed by manual intervention, survey
Try the problem of efficiency is low.
One aspect of the present invention provides a kind of Variable flow control unit automatic test approach, including：
Controller receives the test instruction of test device, and the test instruction includes encouraging the information and exiting form of passage
Information；
The controller determines the excitation passage in the controller according to the information of the excitation passage, and based on described
Excitation passage is tested tested Variable flow control unit using pumping signal corresponding with the exiting form；
Test result is sent to the test device by the controller.
Another aspect of the present invention provides a kind of controller, including：
Receiving module, for receive test device test instruct, it is described test instruction include encourage passage information with
The information of exiting form；
Test module, for determining the excitation passage in the controller according to the information of the excitation passage, and it is based on
The excitation passage is tested tested Variable flow control unit using pumping signal corresponding with the exiting form；
Sending module, for test result to be sent into the test device.
Another aspect of the present invention provides a kind of Variable flow control unit Auto-Test System, including controller noted above and survey
Trial assembly is put.
Variable flow control unit automatic test approach, controller and Auto-Test System provided by the invention, controller according to
Excitation passage and exiting form information determine that excitation passage and pumping signal are tested tested Variable flow control unit, and will survey
Test result is sent to test device, acquisition all no manual interventions of test process and test result, testing efficiency height.
Brief description of the drawings
Fig. 1 is Variable flow control unit automatic test approach embodiment schematic flow sheet provided by the invention；
Fig. 2 is the structural representation of controller embodiment provided by the invention；
Fig. 3 is the structural representation of Variable flow control unit Auto-Test System embodiment one provided by the invention；
Fig. 4 is a kind of structural representation of test device in system shown in Figure 3 embodiment one；
Fig. 5 is the structural representation of Variable flow control unit Auto-Test System embodiment two provided by the invention.
Embodiment
Fig. 1 is Variable flow control unit automatic test approach embodiment schematic flow sheet provided by the invention.As shown in figure 1,
This method includes：
10, controller receives the test instruction of test device, and the test instruction includes information and the excitation for encouraging passage
The information of form.
In the present embodiment, controller refers to the feature according to tested Variable flow control unit, by digital signal processor
（Digital Signal Processor, abbreviation DSP）, field programmable gate array（Field Programmable Gata
Array, abbreviation FPGA）, the test control device that is built into of impulse generator, transistor, resistance, the electronic device such as electric capacity.
The information of excitation passage includes the channel case of controller that excitation uses, as use gap marker, use
Number of channels etc..In order to realize the detection of each several part to Variable flow control unit, different passages is respectively adopted to becoming in controller
Each function of flow control unit, modules are tested, for example, the current source output channel of controller is used for testing
The analog quantity sample circuit of Variable flow control unit, the pulse output channel of controller are used for measuring at the speed of Variable flow control unit
Circuit and capturing unit are managed, and because difference is respectively adopted in the analog quantity sample circuit of the A phase, B phase, C phase of Variable flow control unit
Module realize, so controller is simulated to the A phases of Variable flow control unit respectively using different current source output channels again
Amount sample circuit, B phase analog quantity sample circuits and C phase analog quantity sample circuits are tested.
The information of exiting form includes the amplitude of pumping signal, frequency etc..Generally in each circuit to Variable flow control unit
When carrying out functional test, checking, letter is encouraged using the amplitude and frequency identical of the signal with being handled in circuit real work
Number the related circuit of Variable flow control unit tested.
11, the controller determines the excitation passage in the controller according to the information of the excitation passage, and is based on
The excitation passage is tested tested Variable flow control unit using pumping signal corresponding with the exiting form.
For example, the excitation passage that controller determines according to the information of excitation passage leads to for the first of pulse output channel
Road, the pulse signal frequency that output is determined according to the information of exiting form is 1 KHz（kHz）, amplitude be 1 volt（V）, then control
First passage of the device processed based on pulse output channel, using 1kHz, 1V pulse signal to the velocity process of Variable flow control unit
Circuit and capturing unit are tested.
12, test result is sent to the test device by the controller.
Generally, the test device is set on computers, and the controller is connected with the computer by Ethernet.
Generally, controller obtains test instruction from test device by Ethernet and test result is sent into test dress
Put so that when being tested using controller tested Variable flow control unit, completion controller connects with Variable flow control unit
After line, staff can be controlled to test process in the environment away from test site and obtain test result.
Specifically, it is described that pumping signal corresponding with the exiting form is utilized to being tested unsteady flow based on the excitation passage
Control unit is tested, including：
The controller is according to the information of the exiting form, generation the first excitation letter corresponding with the exiting form
Number；
First pumping signal is sent to the tested unsteady flow by the controller by the outlet of the excitation passage
Control unit；
The controller receives the tested Variable flow control unit according to described first by the entrance of the excitation passage
Responded caused by pumping signal；
Test result is sent to the test device by the controller, including：
The response is sent to the test device by the controller.
Generally, Variable flow control unit is tested, including each signal processing circuit of Variable flow control unit is surveyed
Try, such as PWM feedback and external hardware interrupt circuit, analog quantity sample circuit, temperature measurement circuit to Variable flow control unit etc. enters
Row test.For example, if the test instruction that controller receives is to lead to using the first, second of controller pulse output channel
Road, the velocity process circuit and capturing unit of Variable flow control unit are entered using the pulse signal that frequency is 1kHz, amplitude is 1V
Row test, then for controller according to test instruction, generation frequency is 1kHz, and amplitude is 1V pumping signal, passes through controller pulse
The pumping signal of generation is sent to Variable flow control unit by the outlet of first, second passage of output channel, is exported by pulse
The entrance of first, second passage of passage receives Variable flow control unit and responded according to caused by the pumping signal, and this is responded
It is sent to test device.
In addition, the test to Variable flow control unit, in addition to the survey to each signal generating circuit in unsteady flow test cell
Examination, such as to the pulsewidth modulation in Variable flow control unit（Pulse-Width Modulation, abbreviation PWM）PWM caused by circuit
The frequency of signal, dutycycle, the test of upper and lower bridge arm dead time, to each digital protective relaying signal caused by Variable flow control unit
Test etc..
Correspondingly, it is described that pumping signal corresponding with the exiting form is utilized to being tested unsteady flow based on the excitation passage
Control unit is tested, including：
The controller sends the excitation shape by the outlet of the excitation passage to the tested Variable flow control unit
The information of formula, so that the tested Variable flow control unit generates the second pumping signal corresponding with the exiting form；
Second pumping signal of the tested Variable flow control unit transmission is received by the entrance of the excitation passage；
The controller is tested second pumping signal, obtains test result.
For example, if the test instruction that controller receives is to utilize first, second passage for capturing passage to unsteady flow control
The frequency of pwm signal caused by unit processed, dutycycle, upper and lower bridge arm dead time are tested, then controller is logical by capturing
The outlet of the first passage, second channel in road sends the form information of pwm signal to Variable flow control unit, and logical by first
Road, the entrance of second channel receive the upper and lower bridge arm pwm signal of tested Variable flow control unit generation, and utilize corresponding circuit
The upper and lower bridge arm pwm signal received is tested, obtains the frequency of upper and lower bridge arm pwm signal, dutycycle, dead time.
Table 1 show a controller based on DSP and FPGA and other electronic components composition and can completed
Test event to Variable flow control unit and corresponding maximum number of channels.
Rightmost one is classified as each test event of Variable flow control unit in table 1, and Far Left one is classified as and Variable flow control unit
Each resource of controller corresponding to corresponding test event, centre one are classified as a control of the composition based on DSP and FPGA
Most numbers of channels of each test event of the available corresponding Variable flow control unit of device processed.For example, the digital quantity in controller is defeated
Go out resource to be used to, to the information according to exiting form, generate digital quantity signal, and send out digital quantity signal by digital quantity passage
Variable flow control unit is given, and controller can complete the test to 31 digital quantity input blocks of Variable flow control unit simultaneously.
It should be noted that the test event to Variable flow control unit listed in table 1, is simply surveyed to Variable flow control unit
The exemplary for trying content illustrates, and not restriction provision, can to the test event and maximum number of channels of Variable flow control unit
Set according to the test device and available resources of controller, the content to be measured of tested Variable flow control unit and following improvement trend
Put, and can adjust in good time as needed.For example, the velocity process circuit and capturing unit of Variable flow control unit at most need to handle
6 rate signals, then most numbers of channels of the pulse output channel in controller be set as 6 with meet to Variable flow control unit
Test request.The Variable flow control unit more to test event, excitation passage in addition, can pass through the test of extending controller
Project, excitation passage form a controller to realize, such as with several DSP or FPGA concurrent workings, or pass through more controls
The device processed test used in parallel to complete to Variable flow control unit.The present embodiment is not limited this.
Table 1
Further, before the controller receives the test instruction of test device, in addition to：
The test device obtains configuration file；
The test device instructs according to the configuration file generation test；
After test result is sent to the test device by the controller, in addition to：
The test device exports the test result.
Generally, configuration file refers to the test text of the test event for meeting general Variable flow control unit of technical staff's design
Part, user can pass through qualified judgement of configuration file regulation test event, the excitation passage, testing time, the passage that use etc..Survey
Trial assembly is put after obtaining configuration file, and configuration file is changed into test instruction and come according to default agreement, such as MOBUS agreements
Control controller is tested Variable flow control unit.After test device receives test result, test result can be exported
Show on screen or printed test result by printer.
Preferably, the controller is connected with the tested Variable flow control unit by junction box.
Controller can not only complete the test to Variable flow control unit, can also complete pair and Variable flow control cell mesh function
The test of circuit analogous circuit or product, can be in controller and tested Variable flow control unit in order to improve the versatility of controller
An indirect junction box, keep in the case that the line between the junction box and controller immobilizes, to different unit under tests,
The upper wiring corresponding with the project to be tested of unit under test of junction box is attached to the test completed to unit under test.
The Variable flow control unit automatic test approach that the present embodiment provides, information and excitation of the controller according to excitation passage
The information of form determines that excitation passage and pumping signal are tested tested Variable flow control unit, and test result is sent to
Test device, test process and test result all no manual interventions, improve testing efficiency, and the work for reducing tester is strong
Degree.In addition, controller is connected with test device by internet so that tester can be in the environment away from test site
Real Time Observation test process and result, improve the working environment of tester.
Fig. 2 is the structural representation of controller embodiment one provided by the invention.As shown in Fig. 2 controller includes：Receive
Module 20, test module 21, sending module 22, wherein, receiving module, the test for receiving test device instructs, the survey
Examination instruction includes encouraging the information of passage and the information of exiting form；Test module, for the information according to the excitation passage
The excitation passage in the controller is determined, and pumping signal corresponding with the exiting form is utilized based on the excitation passage
Tested Variable flow control unit is tested；Sending module, for test result to be sent into the test device.
Generally, Variable flow control unit is tested, including each signal processing circuit of Variable flow control unit is surveyed
Examination, then above-mentioned test module, is specifically used for：
According to the information of the exiting form, the first pumping signal corresponding with the exiting form is generated；
First pumping signal is sent to the tested Variable flow control unit by the outlet of the excitation passage；
The tested Variable flow control unit is received by the entrance of the excitation passage to be produced according to first pumping signal
Raw response；
The sending module, is specifically used for：
The response is sent to the test device.
In addition, the test to Variable flow control unit, in addition to the survey to each signal generating circuit in unsteady flow test cell
Examination, then test module described above, is specifically used for：
The information of the exiting form is sent to the tested Variable flow control unit by the outlet of the excitation passage, with
The tested Variable flow control unit is set to generate the second pumping signal corresponding with the exiting form；
Second pumping signal of the tested Variable flow control unit transmission is received by the entrance of the excitation passage；
Second pumping signal is tested, obtains test result.
The controller that the present embodiment provides, determine that excitation is logical by the information according to excitation passage and the information of exiting form
Road and pumping signal are tested tested Variable flow control unit, and test result is sent into test device, test process and
Test result all no manual interventions, improve testing efficiency, reduce the working strength of tester.
Fig. 3 is the structural representation of Variable flow control unit Auto-Test System embodiment one provided by the invention.Such as Fig. 3 institutes
Show, the system includes：Controller 30 and test device 31 described in above-described embodiment 2.
The Variable flow control unit Auto-Test System that the present embodiment provides, controller are swashed by what is sent according to test device
Encourage the information of passage and the information of exiting form determine that excitation passage and pumping signal are tested tested Variable flow control unit,
And test result is sent to test device, test process and test result all no manual interventions, testing efficiency is improved, is reduced
The working strength of tester.
Fig. 4 is a kind of structural representation of test device in system shown in Figure 3 embodiment one.As shown in figure 4, the device bag
Include：Acquisition module 40, generation module 41, sending module 42, receiving module 43 and output module 44, wherein,
Acquisition module 40, for obtaining configuration file；
Generation module 41, for being instructed according to the configuration file generation test；
Sending module 42, for the test instruction to be sent into the controller；
Receiving module 43, the test result sent for receiving the controller；
Output module 44, for exporting the test result.
Fig. 5 is the structural representation of Variable flow control unit Auto-Test System embodiment two provided in an embodiment of the present invention.
As shown in figure 5, on the basis of system shown in Figure 4 embodiment one, the test device 31 sets on computers 50, the control
Device 30 processed is connected with the computer 50 by Ethernet 51.
Further, above-mentioned Auto-Test System also includes junction box 52, is tested for connecting the controller with described
Variable flow control unit 53.
The Variable flow control unit Auto-Test System that the present embodiment provides, controller and test device are connected by internet
Connect so that tester can away from test site environment in Real Time Observation test process and result, improve tester
The working environment of member.In addition, controller is connected with tested Variable flow control unit by junction box, Auto-Test System is improved
Versatility.One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (13)
- A kind of 1. Variable flow control unit automatic test approach, it is characterised in that including：Controller receives the test instruction of test device, and the test instruction includes encouraging the information of passage and the letter of exiting form Breath；The controller determines the excitation passage in the controller according to the information of the excitation passage, and is based on the excitation Passage is tested tested Variable flow control unit using pumping signal corresponding with the exiting form；Test result is sent to the test device by the controller；The information of the excitation passage includes the gap marker of the excitation passage and the number of channels of the excitation passage.
- 2. according to the method for claim 1, it is characterised in that described to be utilized and the excitation shape based on the excitation passage Pumping signal corresponding to formula is tested tested Variable flow control unit, including：The controller generates the first pumping signal corresponding with the exiting form according to the information of the exiting form；First pumping signal is sent to the tested Variable flow control by the controller by the outlet of the excitation passage Unit；The controller receives the tested Variable flow control unit according to the described first excitation by the entrance of the excitation passage Responded caused by signal；Test result is sent to the test device by the controller, including：The response is sent to the test device by the controller.
- 3. according to the method for claim 1, it is characterised in that described to be utilized and the excitation shape based on the excitation passage Pumping signal corresponding to formula is tested tested Variable flow control unit, including：The controller sends the exiting form by the outlet of the excitation passage to the tested Variable flow control unit Information, so that the tested Variable flow control unit generates the second pumping signal corresponding with the exiting form；Second pumping signal of the tested Variable flow control unit transmission is received by the entrance of the excitation passage；The controller is tested second pumping signal, obtains test result.
- 4. according to the method for claim 1, it is characterised in that the test that the controller receives test device instructs it Before, in addition to：The test device obtains configuration file；The test device instructs according to the configuration file generation test；After test result is sent to the test device by the controller, in addition to：The test device exports the test result.
- 5. the method according to any one of claims 1 to 4, it is characterised in that the test device is set on computers, The controller is connected with the computer by Ethernet.
- 6. according to the method for claim 5, it is characterised in that the controller passes through with the tested Variable flow control unit Junction box connects.
- A kind of 7. controller, it is characterised in that including：Receiving module, the test for receiving test device instruct, and the test instruction includes information and the excitation for encouraging passage The information of form；Test module, for determining the excitation passage in the controller according to the information of the excitation passage, and based on described Excitation passage is tested tested Variable flow control unit using pumping signal corresponding with the exiting form；Sending module, for test result to be sent into the test device；The information of the excitation passage includes the gap marker of the excitation passage and the number of channels of the excitation passage.
- 8. controller according to claim 7, it is characterised in that the test module, be specifically used for：According to the information of the exiting form, the first pumping signal corresponding with the exiting form is generated；First pumping signal is sent to the tested Variable flow control unit by the outlet of the excitation passage；The tested Variable flow control unit is received according to caused by first pumping signal by the entrance of the excitation passage Response；The sending module, is specifically used for：The response is sent to the test device.
- 9. controller according to claim 7, it is characterised in that the test module, be specifically used for：The information of the exiting form is sent to the tested Variable flow control unit by the outlet of the excitation passage, so that institute State tested Variable flow control unit and generate the second pumping signal corresponding with the exiting form；Second pumping signal of the tested Variable flow control unit transmission is received by the entrance of the excitation passage；Second pumping signal is tested, obtains test result.
- A kind of 10. Variable flow control unit Auto-Test System, it is characterised in that including：As described in any in claim 7~9 Controller and the test device.
- 11. system according to claim 10, it is characterised in that the test device includes：Acquisition module, for obtaining configuration file；Generation module, for being instructed according to the configuration file generation test；Sending module, for the test instruction to be sent into the controller；Receiving module, the test result sent for receiving the controller；Output module, for exporting the test result.
- 12. the system according to claim 10 or 11, it is characterised in that the test device is set on computers, institute Controller is stated to be connected by Ethernet with the computer.
- 13. system according to claim 12, it is characterised in that also include：Junction box, for connecting the controller and tested Variable flow control unit.
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| CN115453326B (en) * | 2022-09-29 | 2024-06-21 | 北京华峰测控技术股份有限公司 | Test machine, test control device and method |
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