CN104090186A - Analog quantity automatic check system based on safety instrument - Google Patents
Analog quantity automatic check system based on safety instrument Download PDFInfo
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- CN104090186A CN104090186A CN201410315147.XA CN201410315147A CN104090186A CN 104090186 A CN104090186 A CN 104090186A CN 201410315147 A CN201410315147 A CN 201410315147A CN 104090186 A CN104090186 A CN 104090186A
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Abstract
The invention provides an analog quantity automatic check system based on a safety instrument. The system comprises a master control computer, a digital module, a programmable resistor, a dielectric withstand voltage tester, an oscilloscope, a programmable direct-current power source, a programmable digital multimeter, a signal generator, a signal conditioning box and a clamp. The master control computer, the digital module, the programmable resistor, the dielectric withstand voltage tester, the oscilloscope, the programmable direct-current power source, the programmable digital multimeter and the signal generator are all connected with the signal conditioning box, and the signal conditioning box is connected with the clamp through a flexible cable. A modularized structure is adopted for the analog quantity automatic check system based on the safety instrument, so that the system is convenient to detach, the measurement range can be expanded, and the system can adapt to different occasions; the check standards are objective and unified, and real-time data acquisition, processing, display and record playback can be achieved; uncontrollable human factors are reduced, and the production quality is guaranteed more reliably due to automation.
Description
Technical field
The present invention relates to a kind of checking system, particularly relate to a kind of analog quantity automatic checking system based on safety instrument.
Background technology
Along with the development of automatic technology, the accuracy of safety instrument performance test and the real-time of communication are greatly improved, reduce artificial labour intensity, effectively ensured the normal operation of safety instrument, avoided to a great extent the generation of security incident.Meanwhile, safety automation technology, as the application of the technology such as safety detection and supervisory system, safety control system, safety bus, distributed operation, for production run provides further safety guarantee.The safety instrument that is applied to robot control system(RCS), coal production, oil and gas industry is being safeguarded the stability and safety operation of whole automated system.Therefore,, for the manufacturing process of safety instrument, there is very strict requirement.This just need to accomplish to the security performance of safety instrument itself 100% detection.
But traditional instrument and meter manufacturing company production automation level is not high, conventionally can adopt a large amount of desk checking modes.And there is following defect in desk checking:
(1) check consuming time, inefficiency;
(2) reviewer tests for a long time and can cause eye fatigue, makes criterion possibility inconsequent;
(3) assay is decided according to the experience of self by individual reviewer, lacks objectivity.
Closely during the last ten years, the development of instrument and meter is very rapid in the world, its main trend is: the appearance of (1) digital technology makes the precision of analog meter instrument, resolution and inspection speed improve several orders of magnitude, lays a good foundation for realizing inspection automation; (2) introducing of computing machine, make the function of instrument and meter that the variation of matter occur, be transformed into the characteristic parameter of inspection whole system from the inspection of indivedual parameters, from simple reception, show that changing controls, analysiss, processings, calculating and demonstration into exports, measure by measuring system from being transformed into single instrument measurement; (3) the further infiltration of computer technology in instrument and meter, makes electronic device outside traditional time-domain and frequency-domain, has occurred again data field inspection; (4) the scientific and technical breakthrough of instrument and meter and measurement makes again the intelligent degree of instrument and meter be further enhanced.
Especially, for the relevant instrument of security classes, client requires to improve constantly to the quality bills of materials of instrument.Along with riseing of domestic labor cost, manufacturing inspection robotization is imperative.This is because inspection automation has the following advantages:
(1) checkability improves greatly, and average each reviewer's throughput rate promotes more than one times;
(2) owing to adopting robot to replace operative employee, make operative employee away from dangerous inspection machines such as high voltage, large electric current, explosions, processing safety is improved;
(3) check data realizes information system management, and the product of plant produced can be reviewed, and the qualitative control of components and parts obtains effective monitoring;
(4) reduced artificial uncontrollable factor, robotization makes quality bills of materials obtain ensureing more reliably;
(5) drive the progress of the supporting industry of robotization, promoted automatization level.
Therefore, build a kind of analog quantity automatic checking system based on safety instrument and become a hot subject of current development.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of analog quantity automatic checking system based on safety instrument, can carry out to safety instrument the test of the aspects such as insulating property, production interchange precision, ripple, carrying load ability, power consumption, pilot lamp, digital communication, and test result is accurate, testing efficiency is high.
For achieving the above object and other relevant objects, the invention provides a kind of analog quantity automatic checking system based on safety instrument, at least comprise: main control computer, digital module, programmable resistance, dielectric voltage withstand tester, oscillograph, programmable DC power supply, programmable digital multimeter, signal generator, signal process box and fixture; Described main control computer, described digital module, described programmable resistance, described dielectric voltage withstand tester, described oscillograph, described programmable DC power supply, described programmable digital multimeter and described signal generator are all connected with described signal process box, and described signal process box is connected by flexible cable with described fixture; Described main control computer is used for moving testing software and store test data, and whole checking system is controlled; Described digital module is used for the switching channel of the relay of controlling described signal process box; Described programmable resistance is used for providing the 2 above programmable resistance passages in road; Described dielectric voltage withstand tester is for carrying out dielectric voltage withstand test to tested object; Described oscillograph is for exporting ripple and the digital output waveform of tested object; Described programmable DC power supply is for powering to tested object; Described programmable digital multimeter is for measuring output voltage and the output current of tested object, and the output accuracy of tested object; Described signal generator is for providing the signal source of digital communication test to tested object; Described signal process box is for building the required test logic of the tested object of test; Described fixture is used for installing equipment under test.
According to the above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described main control computer is the built-in industrial control machine with pci bus.
According to the above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described signal process box comprises high-voltage relay route matrix, low-voltage relay route matrix, resistance and electric current loop.
According to the above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described fixture comprises fixture external interface, pilot lamp checkout equipment and barcode scanner.
Further, according to the above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described fixture external interface is for being connected with tested object; Whether described pilot lamp checkout equipment is lighted for detection of the pilot lamp of tested object; Described barcode scanner is for scanning the Quick Response Code on tested object, to obtain the information of tested object.
According to the above-mentioned analog quantity automatic checking system based on safety instrument, wherein: also comprise electric current, Voltage-output card, for input required electric current and voltage in the time testing tested object.
According to the above-mentioned analog quantity automatic checking system based on safety instrument, wherein: carry out data communication by pci bus between described main control computer, described digital module and described programmable resistance.
According to the above-mentioned analog quantity automatic checking system based on safety instrument, wherein: carry out data communication by GPIB/USBA/232/LAN between described dielectric voltage withstand tester, described oscillograph, described programmable DC power supply, described programmable digital multimeter and described signal generator.
According to the above-mentioned analog quantity automatic checking system based on safety instrument, wherein: the described analog quantity automatic checking system based on safety instrument is placed in rack.
According to the above-mentioned analog quantity automatic checking system based on safety instrument, wherein: the back side of described signal process box arranges some interfaces; Wherein a part of interface is connected to tested object by cable; Another part interface is connected to fixture external interface.
As mentioned above, the analog quantity automatic checking system based on safety instrument of the present invention, has following beneficial effect:
(1) the present invention adopts modular construction, and for convenience detach, flexible combination can be expanded measuring range, strengthens power of test, is adapted to different occasions, configures different modules and can realize different functions, demand;
(2) the objective unification of test stone, assay accuracy is high;
(3) check data realizes information system management, can realize real-time data acquisition, processing, show, records playback, and the product of plant produced can be reviewed, and the qualitative control of components and parts obtains effective monitoring;
(4) reduced artificial uncontrollable factor, robotization makes quality bills of materials obtain ensureing more reliably.
Brief description of the drawings
Fig. 1 is shown as the structural representation of the analog quantity automatic checking system based on safety instrument of the present invention;
Fig. 2 is shown as the structural representation in signal process box front in the present invention;
Fig. 3 is shown as the structural representation at the signal process box back side in the present invention;
Fig. 4 is shown as the software configuration schematic diagram of the analog quantity automatic checking system based on safety instrument of the present invention;
Fig. 5 is shown as user management process flow diagram in the analog quantity automatic checking system based on safety instrument of the present invention;
Fig. 6 is shown as the data stewardship program figure in the analog quantity automatic checking system based on safety instrument of the present invention.
Element numbers explanation
1 computing machine
2 digital modules
3 programmable resistances
4 dielectric voltage withstand testers
5 oscillographs
6 programmable DC power supplys
7 programmable digital multimeters
8 signal generators
9 signal process box
91 high-voltage relay route matrixs
92 low-voltage relay route matrixs
93 resistance
94 electric current loops
10 fixtures
101 fixture external interfaces
102 pilot lamp checkout equipments
103 barcode scanner
Embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this instructions.The present invention can also be implemented or be applied by other different embodiment, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
It should be noted that, the diagram providing in the present embodiment only illustrates basic conception of the present invention in a schematic way, satisfy and only show with assembly relevant in the present invention in graphic but not component count, shape and size drafting while implementing according to reality, when its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
Analog quantity automatic checking system based on safety instrument of the present invention can be tested to aspects such as the insulating property of safety instrument, production interchange precision, ripple, carrying load ability, power consumption, pilot lamp and digital communications.With reference to Fig. 1, the analog quantity automatic checking system based on safety instrument of the present invention comprises main control computer 1, digital module 2, programmable resistance 3, dielectric voltage withstand tester 4, oscillograph 5, programmable DC power supply 6, programmable digital multimeter 7, signal generator 8, signal process box 9 and fixture 10.Main control computer 1, digital module 2, programmable resistance 3, dielectric voltage withstand tester 4, oscillograph 5, programmable DC power supply 6, programmable digital multimeter 7 and signal generator 8 are all connected with signal process box 9, and signal process box 9 is connected by flexible cable with fixture 10 again.Between main control computer 1, digital module 2, programmable resistance 3, carry out data communication by pci bus.Between dielectric voltage withstand tester 4, oscillograph 5, programmable DC power supply 6, programmable digital multimeter 7 and signal generator 8, carry out data communication by GPIB/USBA/232/LAN.
Wherein, main control computer 1 is for moving testing software and store test data, and the mode of mixing by multiple bus controls other parts of checking system, thereby makes checking system become as a whole.What adopt in the present invention is the built-in industrial control machine with pci bus.
Digital module 2, for pilot relay switching channel, can provide 160 road programmable digital passages.What adopt in the present invention is 7811R digital module.
Programmable resistance 3 is for providing the 2 above programmable resistance passages in road.In the present invention, the resolution of programmable resistance module is 24bit, and resistance range 0-16M Ω, for tested object (Unit Under Test, UUT) provides load.
Dielectric voltage withstand tester 4 is for carrying out dielectric voltage withstand test to tested object.
Oscillograph 5 is for exporting ripple and the digital output waveform of tested object.
Programmable DC power supply 6 is for powering to tested object.
Programmable digital multimeter 7 is for measuring output voltage and the output current of tested object, and the output accuracy of tested object.
Signal generator 8 is for providing the signal source of digital communication test to tested object.
Signal process box 9 comprises high-voltage relay route matrix 91, low-voltage relay route matrix 92, resistance 93 and electric current loop 94, for building the required test logic of the tested object of test.Wherein, the present invention adopts the resistance of 250 Ω and the electric current loop of 4-20mA.In the time need to testing a certain performance of tested object, need to build corresponding test logic in signal process box and test.
Fixture 10 comprises fixture external interface 101, pilot lamp checkout equipment 102 and barcode scanner 103, for equipment under test is installed.Wherein, fixture external interface 101 is for being connected with tested object.Whether pilot lamp checkout equipment 102 is lighted for detection of the pilot lamp of tested object.If light, prove that tested object normally connects; If be not lit, prove that tested object connects extremely, after needing to adjust, just can carry out the test of correlated performance.Barcode scanner 103, for scanning the Quick Response Code on tested object, to obtain the relevant information of tested object, and will be tested the data that obtain according to this Quick Response Code storage, processing.
Preferably, also comprise current/voltage output card.Be connected with main control computer, for input required electric current and voltage in the time testing tested object.
Particularly, in actual use, the analog quantity automatic checking system based on safety instrument of the present invention is placed in to rack.Conventionally, the rack that employing standard is 19 inches, places electric control box, signal generator, programmable digital multimeter, dielectric voltage withstand tester, oscillograph, keyboard and mouse, signal process box, main control computer, programmable DC power supply from top to bottom successively.Oscillograph is fixed on rack one side by rocking arm, can conveniently regulate, operator during by fixture operation oscillograph be positioned at fixture top.In the time that needs are revised parameter by keyboard, keyboard can be moved on to rack front.Wherein, electric control box is for controlling the power supply of whole rack.
Introduce in detail signal process box below.In the present invention, test macro signal condition is made to cabinet pattern, i.e. signal process box.As shown in Figure 2, the front of signal process box is thermovent.As shown in Figure 3, the back side of signal process box is some interfaces.Wherein, a part of interface is connected to tested object by cable; Another part interface is connected to fixture external interface, and this part connector is supported fast insert-pull.The all resources of system are guided to signal process box front panel by banana head, are convenient to manual monitoring signal and test macro instrument calibration.
Particularly, at the analog quantity automatic checking system based on safety instrument of the present invention, the reference configuration of all parts is as shown in table 1.
Table 1, hardware reference configuration
| Instrument title | Model | Producer | Quantity |
| Programmable DC power supply | IT6502A | Ai Dekesi | 1 |
| Rack | 19 inches | Run quickly safe | 1 |
| Industrial computer | IPC-610H | Grind China | 1 |
| Digital module | PCI7811R | NI | 1 |
| Programmable resistance | 50-295-021-3/24 | Pickering | 1 |
| Dielectric voltage withstand tester | GPT-9801 | GWinstek | 1 |
| Oscillograph | DSOX2022A | Agilent | 1 |
| Programmable digital multimeter | Fluke8845A | Fluke | 1 |
| Signal generator | 33510B | Agilent | 1 |
| Programmable DC power supply | PCI-6704 | NI | 1 |
| Electric control box | Customization | Customization | 1 |
| Signal process box | Customization | Customization | 1 |
In order to ensure the processing safety of checking system, the analog quantity automatic checking system that the present invention is based on safety instrument has carried out following setting:
(1) pcb board enters position, location, the non-regulation of door and window and opens etc. security alarm is all set;
(2) man-machine interface, arranges security password management, the convenient management to equipment;
(3) equipment abnormal shutdown, everything keeps original position, and after start, equipment all resets;
(4) emergency stop switch, the processing being conveniently in an emergency are placed in equipment personnel position easy to operate.
On main control computer, operation has testing software.The structural drawing of testing software as shown in Figure 4.Wherein, system interface provides and has entered each functional module interface.Wherein parameter configuration module is that Access database is operated, corresponding to the channel information of preserving in former ICD database by when test the test channel of actual use and the pin of system under test (SUT) be mapped, the test that ICD database and actual needs are completed is mapped.Flow process configuration module is for configuring each test procedure that each when test need to complete, and the information such as test resource, passage corresponding relation using in each step.Configure after testing process, in the time that needs are tested, the testing process configuration file that is directly written into this test correspondence just can complete, and does not need each test all to reconfigure testing process.System self-test module is used for detecting the duty of test macro itself, comprises test channel, configuration file etc. between used modular instrument, test resource and system under test (SUT).
Consider safety problem, the analog quantity automatic checking system based on safety instrument of the present invention provides rights management function, only has specific operation personnel just can carry out equipment operating.And the entrance door that the main interface of the testing software of main control computer is the system of entering carries out operations and management, the here light all functions of calling system.Want to enter testing software, corresponding user profile just need to be provided.
Particularly, user profile comprises user name, password and authority.Software is stored to all users' information in registration table, file, database or the webserver, to preserve and read inquiry.Especially, for the security of user profile, password is preserved through md5 encryption.Wherein, user management flow process as shown in Figure 5.In the present invention, System Privileges is divided into two classes: keeper and operator.Keeper can enter the functional modules such as system configuration, flow process editor, test run, instrument panel, browsing data, Log Browser and operate.Operator can only enter test run and Log Browser functional module operates.But operator's authority can be added and delete according to actual conditions.
Data stewardship program in analog quantity automatic checking system based on safety instrument of the present invention as shown in Figure 6.When each test, all test datas and system information are stored to database, and arrive central server by Network Synchronization, then browsing data module can be connected with Database, the operation such as inquires about, analyzes and browse to being stored to the information of database.
Data management is the best means of test process reproduction, and system software can be preserved test data after test finishes, and the mistake in test process also will be preserved by system, in order to a day post debugging.Software provides data management function also to comprise browsing data, can the test data of storage be browsed and be analyzed.
In sum, the analog quantity automatic checking system based on safety instrument of the present invention adopts modular construction, for convenience detach, flexible combination, can expand measuring range, strengthen power of test, be adapted to different occasions, configure different modules and can realize different functions, demand; The objective unification of test stone, assay accuracy is high; Check data realizes information system management, can realize real-time data acquisition, processing, show, records playback, and the product of plant produced can be reviewed, and the qualitative control of components and parts obtains effective monitoring; Reduced artificial uncontrollable factor, robotization makes quality bills of materials obtain ensureing more reliably.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (10)
1. the analog quantity automatic checking system based on safety instrument, is characterized in that: at least comprise: main control computer, digital module, programmable resistance, dielectric voltage withstand tester, oscillograph, programmable DC power supply, programmable digital multimeter, signal generator, signal process box and fixture; Described main control computer, described digital module, described programmable resistance, described dielectric voltage withstand tester, described oscillograph, described programmable DC power supply, described programmable digital multimeter and described signal generator are all connected with described signal process box, and described signal process box is connected by flexible cable with described fixture;
Described main control computer is used for moving testing software and store test data, and whole checking system is controlled;
Described digital module is used for the switching channel of the relay of controlling described signal process box;
Described programmable resistance is used for providing the 2 above programmable resistance passages in road;
Described dielectric voltage withstand tester is for carrying out dielectric voltage withstand test to tested object;
Described oscillograph is for exporting ripple and the digital output waveform of tested object;
Described programmable DC power supply is for powering to tested object;
Described programmable digital multimeter is for measuring output voltage and the output current of tested object, and the output accuracy of tested object;
Described signal generator is for providing the signal source of digital communication test to tested object;
Described signal process box is for building the required test logic of the tested object of test;
Described fixture is used for installing equipment under test.
2. the analog quantity automatic checking system based on safety instrument according to claim 1, is characterized in that: described main control computer is the built-in industrial control machine with pci bus.
3. the analog quantity automatic checking system based on safety instrument according to claim 1, is characterized in that: described signal process box comprises high-voltage relay route matrix, low-voltage relay route matrix, resistance and electric current loop.
4. the analog quantity automatic checking system based on safety instrument according to claim 1, is characterized in that: described fixture comprises fixture external interface, pilot lamp checkout equipment and barcode scanner.
5. the analog quantity automatic checking system based on safety instrument according to claim 4, is characterized in that: described fixture external interface is for being connected with tested object; Whether described pilot lamp checkout equipment is lighted for detection of the pilot lamp of tested object; Described barcode scanner is for scanning the Quick Response Code on tested object, to obtain the information of tested object.
6. the analog quantity automatic checking system based on safety instrument according to claim 1, is characterized in that: also comprise current/voltage output card, for input required electric current and voltage in the time testing tested object.
7. the analog quantity automatic checking system based on safety instrument according to claim 1, is characterized in that: between described main control computer, described digital module and described programmable resistance, carry out data communication by pci bus.
8. the analog quantity automatic checking system based on safety instrument according to claim 1, is characterized in that: between described dielectric voltage withstand tester, described oscillograph, described programmable DC power supply, described programmable digital multimeter and described signal generator, carry out data communication by GPIB/USBA/232/LAN.
9. the analog quantity automatic checking system based on safety instrument according to claim 1, is characterized in that: the described analog quantity automatic checking system based on safety instrument is placed in rack.
10. the analog quantity automatic checking system based on safety instrument according to claim 1, is characterized in that: the back side of described signal process box arranges some interfaces; Wherein a part of interface is connected to tested object by cable; Another part interface is connected to fixture external interface.
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| CN110515369A (en) * | 2019-08-29 | 2019-11-29 | 西门子工厂自动化工程有限公司 | The security association data processing method and processing device of automatic control system |
| CN110634368A (en) * | 2019-09-14 | 2019-12-31 | 国网福建省电力有限公司检修分公司 | Universal defect eliminating simulation device for defect eliminating simulation of electrical control loop of power transformation equipment |
| CN110634368B (en) * | 2019-09-14 | 2021-09-24 | 国网福建省电力有限公司检修分公司 | Universal defect eliminating simulation device for defect eliminating simulation of electrical control loop of power transformation equipment |
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