CN104502767A - Tooling system for test of alternating-current analog quantity - Google Patents
Tooling system for test of alternating-current analog quantity Download PDFInfo
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- CN104502767A CN104502767A CN201410822724.4A CN201410822724A CN104502767A CN 104502767 A CN104502767 A CN 104502767A CN 201410822724 A CN201410822724 A CN 201410822724A CN 104502767 A CN104502767 A CN 104502767A
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Abstract
The invention discloses a tooling system for test of alternating-current analog quantity. The tooling system comprises a lower computer device, a voltage power amplifier, a current power amplifier and upper computer software. The upper computer software serves as a control center of the tooling system; during test of alternating-current analog quantity, the lower computer device receives orders of the upper computer software to control two DA (digital/analog) circuits to output corresponding alternating-current voltage to the voltage power amplifier and the current power amplifier, high voltage outputted by the voltage power amplifier and current outputted by the current power amplifier are inputted into a voltage input channel and a current input channel of a to-be-tested board respectively, an output end of the to-be-tested board is connected into an AD (analog/digital) channel of the lower computer device, the lower computer device uploads a tested voltage magnitude value and a tested phase angle of each circuit of the AD channel to the upper computer software, and the upper computer software analyzes test results. By the aid of the tooling system for test of alternating-current analog quantity, whether the to-be-tested board has a problem of pseudo soldering or not, whether component soldering directions or parameters are correct or not and whether wiring of a mutual inductor is correct or not can be detected.
Description
Technical field
The invention belongs to AC analogue template detection field in relay protection, be specifically related to the fixture system for ac analog test.
Background technology
AC analogue template generally uses in protective relaying device, and it is the important plate measuring alternating voltage current amplitude and phase place.In ac analog panel products is produced, production test is important step, and after only having test passes, product just can dispatch from the factory.In traditional production test method, be included in system test to the test of simulation template, system test is the test of the allomeric function carried out after whole device has assembled.But system test can not reflect the various problems that simulation template occurs in process of production comprehensively, and assembled due to system test timer, if find during test that quality problems appear in simulation template, device of again dismantling must be obtained just can deal with problems, greatly can reduce production efficiency like this.
Summary of the invention
In order to solve prior art Problems existing, the object of the present invention is to provide a kind of slave computer device of the fixture system for ac analog test, this device provides primary voltage, electric current can to simulation template, and detects its output voltage.
The technical solution adopted in the present invention is as follows:
A slave computer device for ac analog test fixture system, comprises microprocessor module, D/A module and A/D module, and described microprocessor module is the main control unit in slave computer device, for exporting and read with PERCOM peripheral communication, control DA the value that AD gathers; Described D/A module is used for output voltage, and D/A module has two-way; Described A/D module is for gathering voltage data.
Second object of the present invention is to provide a kind of ac analog test fixture system, and this system directly can carry out quality test after simulation template is produced, and has convenient test, high, the reliable feature of efficiency.
The technical solution adopted in the present invention is as follows:
A kind of ac analog test fixture system, is characterized in that, comprise above-mentioned slave computer device, voltage power amplifier, current power amplifier and upper computer software; Described upper computer software is for controlling whole test process, analytical test result; Described slave computer device D/A module is to voltage power amplifier and current power amplifier input voltage, and A/D module gathers the output voltage of tested simulation template; Described voltage power amplifier and current power amplifier are to tested simulation template input voltage, electric current respectively; Voltage power amplifier has the large voltage output end of a road small voltage input end and a road, and it the small voltage of input is converted to large voltage export.Current power amplifier has a road voltage input end and a road current output terminal, and it is that electric current exports by the voltage transitions of input.
Described slave computer device receives the order of upper computer software, slave computer device controls two-way D/A module to voltage power amplifier and current power amplifier input voltage, the electric current that described voltage power amplifier output voltage and current power amplifier export inputs voltage input channel and the electric current input channel of tested simulation template respectively, in the AD passage of the output terminal access slave computer device of tested simulation template, slave computer device will record voltage data and pass to upper computer software, upper computer software analytical test result.
Preferably, in described slave computer device, A/D module gathers the output voltage of two-way D/A module, to learn the exact value that DA exports.
Preferably, in described slave computer device, A/D module has 1-20 road voltage input channel.
Preferably, in described slave computer device, D/A module output voltage is 0 ~ 3.3V.
Preferably, described slave computer device can read No. ID of tested simulation template.
Preferably, described upper computer software supports bar code input.
Preferably, the voltage data that described slave computer device records is voltage magnitude and phase angle.
Second object of the present invention is to provide a kind of ac analog proving installation, and the technical solution adopted in the present invention is as follows:
A kind of ac analog proving installation, comprises slave computer device, voltage power amplifier, current power amplifier, upper computer software and tool; Described slave computer device, voltage power amplifier, current power amplifier are placed in tool; Described upper computer software is for controlling whole test process, analytical test result; Described slave computer device D/A module is to voltage power amplifier and current power amplifier input voltage, and A/D module gathers the output voltage of tested simulation template; Described voltage power amplifier and current power amplifier are to tested simulation template input voltage, electric current respectively.
Preferably, described slave computer device has 1 road Ethernet interface and 1 road serial ports, can communicate with Ethernet with serial ports with host computer.
Preferably, described tool is powered to slave computer device, voltage power amplifier and current power amplifier, and tool has fixing slot to place tested simulation template.
Preferably, described tool there are the Ethernet interface in the lead-out terminal of the lead-out terminal of the input terminal of tested simulation template, voltage power amplifier, current power amplifier, slave computer device and serial ports, the extraction of these terminals facilitates wiring, conveniently communicates with host computer, convenient test.
Tool side is provided with row's connection terminal, can give tested simulation template input analog amount, can obtain the output voltage of voltage power amplifier and the output current of current power amplifier by connection terminal by connection terminal.The side of tool is also provided with Ethernet interface and serial ports, and be connected with serial ports with the Ethernet interface in slave computer device respectively, the Ethernet interface of tool side and serial ports can be connected in host computer, realize the communication of host computer and test fixture.
Preferably, arrange thimble in described tool, with the input end of tested simulation template and output terminal close contact above thimble, thimble bottom is connected to the connection terminal of tool side and the input end of slave computer device.
Annexation is wherein: when analog quantity inputs from the terminal of tool side, be input in the input end of tested simulation template by thimble; The voltage that tested simulation template exports is input in the input end of slave computer device by thimble.In the analog input end of tool side, voltage input end is in parallel, be connected with the output terminal of voltage power amplifier; Current input terminal is connected, is connected with the output terminal of current power amplifier.
Preferably, described tool adopts pneumatic mechanism.After placing tested simulation template, close tool lid, button press, pneumatic mechanism and automatic by tested plate compress, thimble and plate close contact.
Above-mentioned ac analog test fixture system or device, slave computer device can accept the order of host computer by ethernet communication, control voltage output terminal exports corresponding voltage, the result recording each road voltage can be uploaded to host computer, for host computer analytical test result.Wherein support Modbus-TCP agreement in ethernet communication, carry out control voltage by Modbus-TCP agreement and export and read voltage measurements.Serial ports supports order line function, arranges ethernet communication parameter, comprise IP address, gateway and subnet mask by order line.
Above-mentioned ac analog test fixture system or device, upper computer software writes testing procedure by script, and use Lua script, Lua is powerful, writes conveniently.Host computer supports Lua script engine, has again the interface display of hommization.Use script can control the test process of different model simulation template neatly, script can be revised neatly, to meet the analog quantity test under different platform, different requirement.The interface display of hommization can facilitate the operation of tester, and by clicking the testing button on interface, namely can start test, whole test process carries out automatically, and centre no longer needs personnel's parameter, test report is presented on interface after having tested.One keyization operation can allow tester save loaded down with trivial details operation steps, even if the people being ignorant of fixture system principle can learn operation like a cork.
Above-mentioned ac analog test fixture system or device, upper computer software supports bar code input, the bar code of tested analog quantity plate can be scanned in upper computer software, after having tested, the test report of every block plate is all kept in computer by upper computer software, can find the test report of every block plank according to bar code.
Above-mentioned ac analog test fixture system or device, tested simulation template can have No. ID, to identify the plate of different model.Slave computer device can read No. ID of tested simulation template, is uploaded to upper computer software by Modbus-TCP agreement by No. ID.Each road analog quantity channel type and parameter under each model analog quantity plate that configured in advance is good tested in Lua script, automatically can find the parameter configuration of current tested plate during test according to No. ID, test automatically generating test report according to test result and parameter configuration afterwards.
Beneficial effect of the present invention:
The present invention is applied in AC analogue template is produced, produced problem in the various productions such as whether rosin joint, components and parts direction of welding be correct, whether component parameter is correct, whether mutual inductor interstar connection is correct whether is there is for test simulation template, reliably tested efficiently by native system, greatly can improve the quality of production and the production efficiency of veneer.
Have fixing slot to place tested simulation template in tool, fixing slot can ensure that tested plate position is put just not inclined, ensures that thimble all aligns with the pad in plate and terminal, convenient during placement.
Pneumatic mechanism in tool can ensure pad in thimble and plate and terminal reliable contacts, and ensureing can not affect test result because of the contact problems of thimble.The operation of one key button greatly reduces the expense of manpower, convenient during operation.
In slave computer device, input measurement passage is many, is enough to meet the channel requirements in the simulation template of various model.
Use ethernet communication, easy to connect, communication speed is fast, and Modbus-TCP agreement is reliable.
Lua script is easy to use, flexible configuration, can be met testing procedure, test request under different situations, and need not change whole fixture system, also need not change upper computer software by the amendment of script.
Upper computer software friendly interface, easy to operate, non-technical personnel also can be learned to use rapidly.
Upper computer software automatic analysis test result, generates test report, and preserves test report, the error brought when avoiding manual analysis test result.Whether observably show monoblock plate in test result by test, whether also clearly show each road analog quantity by test simultaneously, facilitate tester can judge the good with bad of test result at a glance, improve operating efficiency.
Comprehensive above beneficial effect, the present invention is reliable efficient in ac analog test, can greatly improve the quality of production and production efficiency.
Accompanying drawing explanation
Fig. 1 is the annexation figure of each module of system in the present invention.
Fig. 2 is the structured flowchart of slave computer device in the present invention.
Fig. 3 is the typical test flow figure in the present invention in upper computer software script.
Embodiment
Technical scheme of the present invention is illustrated below in conjunction with accompanying drawing.
Embodiment 1
As shown in Figure 1, ac analog test fixture system comprises slave computer device, voltage power amplifier, current power amplifier, upper computer software.
As shown in Figure 2, in the present embodiment fixture system, slave computer device main modular is microprocessor, DA exports and AD gathers.Microprocessor is the main control module in slave computer device, for exporting and read with host computer communication, control DA the value that AD gathers.
In test process, the processing procedure in slave computer device is described below in detail:
Slave computer device, after the two-way voltage receiving host computer exports order, controls two-way D/A module and exports the ac voltage of specifying respectively.
The voltage that DA exports is input in voltage power amplifier and current power amplifier on the one hand, be input in AD acquisition module on the other hand, like this can the magnitude of voltage of the actual output of Measurement accuracy, the theoretical value of alternative DA output is carried out with the DA output voltage values recorded, then participate in the analysis of test result, make test result more reliable.
AD gathers the alternating voltage that in the alternating voltage and tested simulation template including two-way DA output, each passage exports.Microprocessor reads value that AD gathers in real time and calculates in real time the alternating voltage amplitude and phase place that each road AD channel acquisition comes, and upper computer software can read at any time.
In test process, the present embodiment fixture system check processing process is as follows:
Upper computer software is to the next machine by Modbus-TCP agreement transmitting order to lower levels, and the two-way DA controlled in slave computer device exports the ac voltage of specifying size respectively.This two-way voltage exports respectively as the input of voltage power amplifier and the input of current power amplifier, and control voltage power amplifier exports the magnitude of voltage of specifying size, and controls the current value that current power amplifier exports appointment size;
The large voltage that voltage power amplifier exports is as the input of the voltage channel of tested simulation template, the electric current that current power amplifier exports is as the input of the current channel of tested simulation template, and the input channel of tested simulation template like this has the excitation determining size;
After each passage of tested simulation template has had alternating voltage or alternating current input, the interchange producing low-voltage after voltage transformer (VT) or current transformer has exported;
Each road of tested simulation template exports the AD input channel entering slave computer device, the ac voltage that each road that slave computer device just can measure tested simulation template exports;
Host computer reads amplitude and the phase place of each the road alternating voltage measured by slave computer device by Modbus-TCP agreement.Upper computer software, according to the data computational analysis test result read, generates test report.
Upper computer software is the test process control center of fixture system.
Slave computer device can accept the order of host computer by ethernet communication, control voltage output terminal exports corresponding voltage, the result recording each road voltage can be uploaded to host computer, for host computer analytical test result.Wherein support Modbus-TCP agreement in ethernet communication, carry out control voltage by Modbus-TCP agreement and export and read voltage measurements.Serial ports supports order line function, arranges ethernet communication parameter, comprise IP address, gateway and subnet mask by order line.
Upper computer software writes testing procedure by script, and use Lua script, Lua is powerful, writes conveniently.Host computer supports Lua script engine, has again the interface display of hommization.Use script can control the test process of different model simulation template neatly, script can be revised neatly, to meet the analog quantity test under different platform, different requirement.The interface display of hommization can facilitate the operation of tester, and by clicking the testing button on interface, namely can start test, whole test process carries out automatically, and centre no longer needs personnel's parameter, test report is presented on interface after having tested.One keyization operation can allow tester save loaded down with trivial details operation steps, even if the people being ignorant of fixture system principle can learn operation like a cork.
Above-mentioned ac analog proving installation, upper computer software supports bar code input, the bar code of tested analog quantity plate can be scanned in upper computer software, after having tested, the test report of every block plate is all kept in computer by upper computer software, can find the test report of every block plank according to bar code.
Above-mentioned ac analog proving installation, tested simulation template can have No. ID, to identify the plate of different model.Slave computer device can read No. ID of tested simulation template, is uploaded to upper computer software by Modbus-TCP agreement by No. ID.Each road analog quantity channel type and parameter under each model analog quantity plate that configured in advance is good tested in Lua script, automatically can find the parameter configuration of current tested plate during test according to No. ID, test automatically generating test report according to test result and parameter configuration afterwards.
As shown in Figure 3, typical testing process is as follows:
Click test start button and start test;
The simulation template configuration of each model is read from simulation template configuration file;
Upper software reads plate bar code;
Arrange report store path and report file title, general report file is named with bar code, the test report under easy-to-look-up appointment plate;
Read the information such as No. ID, plate, plate version;
Set the voltage and current size that will export in power amplifier, be generally fixed value;
Control slave computer and export two-way voltage respectively to two power amplifiers;
Time delay 100 milliseconds, treats power amplifier stable output;
Analog quantity amplitude and phase angle that each drive test obtains is read from slave computer;
Control slave computer to stop exporting two-way voltage;
The configuration information under No. D, current I is searched from the configuration of simulation template;
If do not find configuration information, then output error message, then terminates this test;
If find configuration information, then analytical test result, generation report are preserved and are presented on screen, then terminate this test.
Wherein during analysis result, in script, first calculate the theoretical output valve of each passage, then theoretical value and the actual value recorded are compared, amplitude and phase angle all will compare, if deviation is in the scope of specifying, then this lane testing passes through, exceeded the scope of specifying, then this lane testing does not pass through.This wherein will consider the phase angle difference of voltage power amplifier and current power amplifier one secondary side, avoids affecting test result because of phase angle difference.
It is obstructed out-of-date to test, and infer Problems existing in plate according to test result, typical estimating method is as follows:
If the output voltage of simulation template is 0, then there is rosin joint in this passage, or the non-wiring of mutual inductor;
If output voltage and the theoretical value of simulation template are anti-phase, i.e. phase 180 °, then the mutual inductor interstar connection under this passage is anti-, needs to check mutual inductor interstar connection;
If the output voltage of simulation template is not 0, but very large with theoretical value difference, then and the transformer parameter mistake under this passage, needs the nominal parameters checking mutual inductor.
Embodiment 2
For a device for ac analog test, comprise slave computer device, voltage power amplifier, current power amplifier, tool and upper computer software; Described slave computer device, voltage power amplifier and current power amplifier are contained in tool, and the connecting line between above-mentioned each device, module is also all in tool.
Slave computer device has 2 road voltage output channels and 1-20 road voltage input channel, can export 2 road voltages, can measure the voltage input on 1-20 road.Slave computer device also has 1 road Ethernet interface and 1 road serial ports, can communicate with Ethernet with serial ports with host computer.
Voltage power amplifier has the large voltage output end of a road small voltage input end and a road, and it the small voltage of input is converted to large voltage export.Current power amplifier has a road voltage input end and a road current output terminal, and it is that electric current exports by the voltage transitions of input.
Tool is not only used for placing slave computer device, voltage power amplifier and current power amplifier, power to slave computer device, voltage power amplifier and current power amplifier, tested simulation template can also be fixed, the input terminal of tested simulation template can also be drawn, the lead-out terminal of extraction voltage power amplifier, the lead-out terminal of extracted current power amplifier, draw the Ethernet interface in slave computer device and serial ports, the extraction of these terminals facilitates wiring, conveniently communicate with host computer, convenient test.
Upper computer software runs on computers, for controlling whole test process, for analytical test result, and test result is presented on computer screen.
The tool side of above-mentioned ac analog test is provided with row's connection terminal, can tested simulation template input analog amount be given by connection terminal, the output voltage of voltage power amplifier and the output current of current power amplifier can be obtained by device connection terminal.The side of tool is also provided with Ethernet interface and serial ports, and be connected with serial ports with the Ethernet interface in slave computer device respectively, the Ethernet interface of tool side and serial ports can be connected in host computer, realize the communication of host computer and test fixture.
Tested simulation template can be placed in the tool of above-mentioned ac analog proving installation, preferred version, tool is provided with thimble, with the input end of tested simulation template and output terminal close contact above thimble, thimble bottom is connected in the connection terminal of tool side and the input end of slave computer device.Annexation is wherein: when analog quantity inputs from the terminal of tool side, be input in the input end of tested simulation template by thimble; The voltage that tested simulation template exports is input in the input end of slave computer device by thimble.In the analog input end of tool side, voltage input end is in parallel, be connected with the output terminal of voltage power amplifier; Current input terminal is connected, is connected with the output terminal of current power amplifier.
Above-mentioned ac analog proving installation, preferred tool adopts pneumatic mechanism, and after placing tested simulation template, close tool lid, button press, pneumatic mechanism and automatically being compressed by tested plate, thimble and plate close contact.
Above-mentioned ac analog proving installation, slave computer device has 2 road voltage output channels, all can export the voltage between 0 ~ 3.3V exactly, this two-way voltage is input in voltage power amplifier and current power amplifier respectively, allow voltage power amplifier export large voltage be input in the voltage input end of tested simulation template by the terminal of tool side, allow current power amplifier output current be input in the current input terminal of tested simulation template by the terminal of tool side.Slave computer device can measure the voltage of tested each road output terminal of simulation template.
The slave computer device of above-mentioned ac analog proving installation can accept the order of host computer by ethernet communication, control voltage output terminal exports corresponding voltage, the result recording each road voltage can be uploaded to host computer, for host computer analytical test result.Wherein support Modbus-TCP agreement in ethernet communication, carry out control voltage by Modbus-TCP agreement and export and read voltage measurements.Serial ports supports order line function, arranges ethernet communication parameter, comprise IP address, gateway and subnet mask by order line.
The upper computer software of above-mentioned ac analog proving installation writes testing procedure by script, and use Lua script, Lua is powerful, writes conveniently.Host computer supports Lua script engine, has again the interface display of hommization.Use script can control the test process of different model simulation template neatly, script can be revised neatly, to meet the analog quantity test under different platform, different requirement.The interface display of hommization can facilitate the operation of tester, and by clicking the testing button on interface, namely can start test, whole test process carries out automatically, and centre no longer needs personnel's parameter, test report is presented on interface after having tested.One keyization operation can allow tester save loaded down with trivial details operation steps, even if the people being ignorant of fixture system principle can learn operation like a cork.
Above-mentioned ac analog proving installation, upper computer software supports bar code input, the bar code of tested analog quantity plate can be scanned in upper computer software, after having tested, the test report of every block plate is all kept in computer by upper computer software, can find the test report of every block plank according to bar code.
Above-mentioned ac analog proving installation, tested simulation template can have No. ID, to identify the plate of different model.Slave computer device can read No. ID of tested simulation template, is uploaded to upper computer software by Modbus-TCP agreement by No. ID.Each road analog quantity channel type and parameter under each model analog quantity plate that configured in advance is good tested in Lua script, automatically can find the parameter configuration of current tested plate during test according to No. ID, test automatically generating test report according to test result and parameter configuration afterwards.
Ac analog proving installation test plate step is as follows:
1. first open upper computer software, connect ethernet line on tool, connect inflator pump on tool, power on to tool, inflator pump is used for inflating to the pneumatic mechanism of tool.
2. by the bar code scanning of tested analog quantity plate in upper computer software.
3. open tool lid, tested simulation template is put into tool.
4. close tool lid, and to the inflation of tool pneumatic mechanism, click the button of tool side, tested plate can compress by pneumatic mechanism, allows thimble reliable contacts in the input end of tested plate and each road contact of output terminal and tool.
5. click the beginning testing button on upper computer software interface, upper computer software just starts once to test.
6. upper computer software first reads No. ID of tested plate by Modbus-TCP agreement.
7. upper computer software controls slave computer device, starts to test plate.By voltage, the electric current of specifying size to the input of each paths of plate to be measured, the alternating voltage data that each road obtaining tested simulation template exports.
Upper computer software is by Modbus-TCP agreement transmitting order to lower levels, and the two-way DA controlled in slave computer device exports the ac voltage of specifying size respectively.This two-way voltage exports respectively as the input of voltage power amplifier and the input of current power amplifier, exports the magnitude of voltage of specifying size with control voltage power amplifier, controls current power amplifier and exports the current value of specifying size.
The large voltage that voltage power amplifier exports is as the input of the voltage channel of tested simulation template, the electric current that current power amplifier exports is as the input of the current channel of tested simulation template, and the input channel of tested simulation template like this has the excitation determining size.
After each passage of tested simulation template has had alternating voltage or alternating current input, the interchange producing low-voltage after voltage transformer (VT) or current transformer has exported, and is generally 0 ~ 3.53V.
Each road of tested simulation template exports the AD input channel entering slave computer device, the ac voltage that each road that slave computer device just can measure tested simulation template exports.
8. host computer reads amplitude and the phase place of each the road alternating voltage measured by slave computer device by Modbus-TCP agreement.
9. upper computer software is according to the result of this test of the data computational analysis of reading, and generates test report and is saved in computing machine, and test report be presented on screen.
10. according to the test result that screen shows, tester learns that whether tested simulation template is by test, if test is not passed through, then learn specifically which analog quantity has problem according to each drive test test result that screen shows, thus place under repair according to particular problem.
11., to pneumatic mechanism venting, open tool lid, take out the plate tested, put into the tested plate of next block, start once new test.
In the introduction of above-mentioned embodiment, although with typical embodiment openly as above, personnel in the art can flexible without departing from the scope of the present invention, but still belongs to protection scope of the present invention.
Claims (10)
1. the slave computer device of an ac analog test fixture system, it is characterized in that, comprise microprocessor module, D/A module and A/D module, described microprocessor module is the main control unit in slave computer device, for exporting and read with PERCOM peripheral communication, control DA the value that AD gathers; Described D/A module is used for output voltage, and D/A module has two-way; Described A/D module is for gathering voltage data.
2. comprise an ac analog test fixture system for slave computer device described in claim 1, it is characterized in that, comprise slave computer device as claimed in claim 1, voltage power amplifier, current power amplifier and upper computer software; Described upper computer software is for controlling whole test process, analytical test result; Described slave computer device D/A module is to voltage power amplifier and current power amplifier input voltage, and A/D module gathers the output voltage of tested simulation template; Described voltage power amplifier and current power amplifier are to tested simulation template input voltage, electric current respectively
.
Described slave computer device receives the order of upper computer software, slave computer device controls two-way D/A module to voltage power amplifier and current power amplifier input voltage, the electric current that described voltage power amplifier output voltage and current power amplifier export inputs voltage input channel and the electric current input channel of tested simulation template respectively, in the AD passage of the output terminal access slave computer device of tested simulation template, slave computer device will record voltage data and pass to upper computer software, upper computer software analytical test result.
3. fixture system according to claim 2, is characterized in that, in described slave computer device, A/D module gathers the output voltage of two-way D/A module;
In described slave computer device, A/D module has 1-20 road voltage input channel;
In described slave computer device, D/A module output voltage is 0 ~ 3.3V.
4. fixture system according to claim 2, it is characterized in that, described slave computer device can read No. ID of tested simulation template;
The voltage data that described slave computer device records is voltage magnitude and phase angle.
5. fixture system according to claim 2, is characterized in that, described upper computer software supports bar code input.
6. an ac analog proving installation, is characterized in that, comprises slave computer device, voltage power amplifier, current power amplifier, upper computer software and tool; Described slave computer device, voltage power amplifier, current power amplifier are placed in tool; Described upper computer software is for controlling whole test process, analytical test result; Described slave computer device D/A module is to voltage power amplifier and current power amplifier input voltage, and A/D module gathers the output voltage of tested simulation template; Described voltage power amplifier and current power amplifier are to tested simulation template input voltage, electric current respectively.
7. proving installation according to claim 6, it is characterized in that, described slave computer device has 1 road Ethernet interface and 1 road serial ports.
8. proving installation according to claim 6, it is characterized in that, described tool is powered to slave computer device, voltage power amplifier and current power amplifier;
Described tool there are the Ethernet interface in the lead-out terminal of the lead-out terminal of the input terminal of tested simulation template, voltage power amplifier, current power amplifier, slave computer device and serial ports;
Arrange thimble in described tool, with the input end of tested simulation template and output terminal close contact above thimble, thimble bottom is connected to the connection terminal of tool side and the input end of slave computer device;
Described tool adopts pneumatic mechanism.
9. an AC analogue weight testing method, is characterized in that:
Step one, open upper computer software, connect ethernet line on tool, connect inflator pump on tool, power on to tool, inflator pump is used for inflating to the pneumatic mechanism of tool;
Step 2, by the bar code scanning of tested analog quantity plate in upper computer software;
Step 3, open tool lid, tested simulation template is put into tool;
Step 4, close tool lid, and to the inflation of tool pneumatic mechanism, click the button of tool side, tested plate compresses by pneumatic mechanism, allows thimble reliable contacts in the input end of tested plate and each road contact of output terminal and tool;
Step 5, the beginning testing button clicked on upper computer software interface, upper computer software starts once to test;
Step 6, upper computer software first read No. ID of tested plate by Modbus-TCP agreement;
Step 7, upper computer software control slave computer device, start to test plate; By voltage, the electric current of specifying size to the input of each paths of plate to be measured, the alternating voltage data that each road obtaining tested simulation template exports;
Step 8, host computer read amplitude and the phase place of each the road alternating voltage measured by slave computer device by Modbus-TCP agreement;
Step 9, upper computer software, according to the result of this test of the data computational analysis of reading, generate test report and are saved in computing machine, and be presented on screen by test report;
Step 10, to learn that according to the test result that screen shows whether tested simulation template is by test, if test is not passed through, then learn specifically which analog quantity has problem according to each drive test test result that screen shows, thus place under repair according to particular problem;
Step 11, to pneumatic mechanism venting, open tool lid, take out the plate tested, put into the tested plate of next block, start once new test.
10. the AC analogue weight testing method according to claims 9, is characterized in that, in step 7:
Upper computer software is by Modbus-TCP agreement transmitting order to lower levels, and the two-way DA controlled in slave computer device exports the ac voltage of specifying size respectively; This two-way voltage exports respectively as the input of voltage power amplifier and the input of current power amplifier, exports the magnitude of voltage of specifying size with control voltage power amplifier, controls current power amplifier and exports the current value of specifying size;
The large voltage that voltage power amplifier exports is as the input of the voltage channel of tested simulation template, the electric current that current power amplifier exports is as the input of the current channel of tested simulation template, and the input channel of tested simulation template has the excitation determining size;
After each passage of tested simulation template has had alternating voltage or alternating current input, the interchange producing low-voltage after voltage transformer (VT) or current transformer has exported, and is generally 0 ~ 3.53V;
Each road of tested simulation template exports the AD input channel entering slave computer device, the ac voltage of each road output of the tested simulation template of slave computer measurement device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410822724.4A CN104502767B (en) | 2014-12-25 | 2014-12-25 | A kind of fixture system for ac analog test |
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|---|---|---|---|
| CN201410822724.4A CN104502767B (en) | 2014-12-25 | 2014-12-25 | A kind of fixture system for ac analog test |
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| CN104502767A true CN104502767A (en) | 2015-04-08 |
| CN104502767B CN104502767B (en) | 2018-09-11 |
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| CN201410822724.4A Active CN104502767B (en) | 2014-12-25 | 2014-12-25 | A kind of fixture system for ac analog test |
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| CN108957187A (en) * | 2018-07-17 | 2018-12-07 | 国网辽宁省电力有限公司电力科学研究院 | A kind of test device of ac analog channel hardware |
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