CN104090186B - A kind of analog quantity automatic checking system based on safety instrument - Google Patents
A kind of analog quantity automatic checking system based on safety instrument Download PDFInfo
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Abstract
The present invention provides a kind of analog quantity automatic checking system based on safety instrument to include: main control computer, digital module, programmable resistance, insulation Hi-pot Tester, oscillograph, programmable DC power supply, programmable digital circuit tester, signal generator, signal process box and fixture；Described main control computer, described digital module, described programmable resistance, described insulation Hi-pot Tester, described oscillograph, described programmable DC power supply, described programmable digital circuit tester are all connected with described signal process box with described signal generator, and described signal process box is connected by flexible cable with described fixture.The analog quantity automatic checking system based on safety instrument of the present invention uses modular construction, conveniently dismantles, can extend measuring range, is adapted to different occasions；The objective unification of touchstone, can realize real-time data acquisition, process, show, record playback；Decreasing artificial uncontrollable factor, automatization makes manufacture quality obtain relatively reliable guarantee.
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, substantially increase the accuracy of safety instrument performance test and the real-time of information transmission
Property, reduce artificial labor intensity, be effectively guaranteed the properly functioning of safety instrument, largely avoid safety
The generation of accident.Meanwhile, safety automation technology, as safety detection and monitoring system, safety control system, safety bus,
The application of the technology such as distributed operation, provides further safety guarantee for production process.It is applied to robot control system(RCS), colliery life
Product, the safety instrument of oil and gas industry maintain the stable safe operation of whole automated system.Therefore, for safe instrument
The manufacturing process of table, has very strict requirement.This is accomplished by the security performance of safety instrument itself is accomplished 100%
Detection.
But traditional instrument and meter manufacturing company production automation level is the highest, it will usually use substantial amounts of desk checking mode.
And there is following defect in desk checking:
(1) time-consuming, inefficiency is checked；
(2) reviewer tests for a long time and can cause eyestrain so that criterion may inconsequent；
(3) assay is determined according to the experience of self by individual reviewer, lacks objectivity.
The most during the last ten years, the development of instrument and meter is extremely rapid in the world, and its major trend is: the appearance of (1) digital technology makes
Obtain the precision of analog meter instrument, resolution improves several order of magnitude with inspection speed, has laid good for realizing inspection automation
Good basis；(2) introducing of computer, makes the function of instrument and meter there occurs the change of matter, changes from the inspection of indivedual parameters
Become inspection whole system characteristic parameter, from simple reception, display be changed into control, analyze, process, calculate and show defeated
Go out, measure by measurement system from measuring with single instrument to be transformed into；(3) computer technology entering in instrument and meter
One step infiltration, makes electronic machine outside traditional time-domain and frequency-domain, occurs in that again data field is checked；(4) instrument and meter and survey
The breakthrough of amount science and technology makes again instrument and meter intelligence degree be further enhanced.
Especially, for the instrument that security classes is relevant, the manufacture quality requirements of instrument is improved constantly by client.Along with domestic work
Riseing of power cost, manufacturing inspection automatization is the most imperative.This is because inspection automation has the advantage that
(1) checkability improves greatly, and the productivity ratio of average each reviewer promotes more than one times；
(2) owing to using robot to replace operative employee, make operative employee away from the dangerous inspection equipment such as high voltage, big electric current, explosion,
Processing safety is improved；
(3) check number shows information system management factually, and the product of plant produced can be reviewed, and the qualitative control of components and parts is had
Effect monitoring；
(4) decreasing artificial uncontrollable factor, automatization makes manufacture quality obtain relatively reliable guarantee；
(5) drive the progress of the supporting industry of automatization, promote 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, it is an object of the invention to provide a kind of analog quantity based on safety instrument automatic
Checking system, it is possible to safety instrument is carried out insulating properties, production interchange precision, ripple, carrying load ability, power consumption, instruction
The test of the aspect such as lamp, digital communication, and test result is accurate, testing efficiency is high.
For achieving the above object and other relevant purposes, the present invention provides a kind of analog quantity automatic checking system based on safety instrument,
At least include: main control computer, digital module, programmable resistance, insulation Hi-pot Tester, oscillograph, programmable DC electricity
Source, programmable digital circuit tester, signal generator, signal process box and fixture；Described main control computer, described digital module,
Described programmable resistance, described insulation Hi-pot Tester, described oscillograph, described programmable DC power supply, described number able to programme
Word circuit tester is all connected with described signal process box with described signal generator, and described signal process box and described fixture are by flexibility
Cable connects；Described main control computer is for testing results software and storage test data, and controls whole checking system
System；Described digital module is for controlling the switching channel of the relay of described signal process box；Described programmable resistance is used for providing
2 road above programmable resistance passages；Described insulation Hi-pot Tester for carrying out the voltage-withstand test that insulate to tested object；Described
Oscillograph is for exporting ripple and the numeral output waveform of tested object；Described programmable DC power supply is for tested object
Power supply；Described programmable digital circuit tester is for measuring output voltage and the output electric current of tested object, and tested object
Output accuracy；Described signal generator for providing the signal source of digital communication test to tested object；Described signal condition
Case is for building the test logic tested needed for tested object；Described fixture is used for installing equipment under test.
According to above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described main control computer is total with PCI
The built-in industrial control machine of line.
According to above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described signal process box includes high-voltage relay
Device route matrix, low-voltage relay route matrix, resistance and electric current loop.
According to above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described fixture include fixture external interface,
Display lamp detection equipment and barcode scanner.
Further, according to above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described fixture external interface
For being connected with tested object；Whether described display lamp detection equipment is lighted for the display lamp detecting tested object；Described
Barcode scanner is for scanning the Quick Response Code on tested object, to obtain the information of tested object.
According to above-mentioned analog quantity automatic checking system based on safety instrument, wherein: also include electric current, voltage output card, use
Electric current needed for the input when testing tested object and voltage.
According to above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described main control computer, described numeral mould
Data communication is carried out by pci bus between block and described programmable resistance.
According to above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described insulation Hi-pot Tester, described in show
Ripple device, described programmable DC power supply, pass through between described programmable digital circuit tester and described signal generator
GPIB/USBA/232/LAN carries out data communication.
According to above-mentioned analog quantity automatic checking system based on safety instrument, wherein: described analog quantity based on safety instrument is certainly
Dynamic checking system is placed in rack.
According to above-mentioned analog quantity automatic checking system based on safety instrument, wherein: if the back side of described signal process box is arranged
Stem grafting mouth；A portion interface is connected to tested object by cable；Another part interface is connected to fixture external interface.
As it has been described above, the analog quantity automatic checking system based on safety instrument of the present invention, have the advantages that
(1) present invention uses modular construction, convenient dismounting, flexible combination, it is possible to extension measuring range, strengthens power of test,
Being adapted to different occasions, differently configured module can realize different function, demand；
(2) the objective unification of touchstone, assay accuracy is high；
(3) check number shows information system management factually, can realize real-time data acquisition, process, shows, record playback, and factory gives birth to
The product produced can be reviewed, and the qualitative control of components and parts obtains effective monitoring；
(4) decreasing artificial uncontrollable factor, automatization makes manufacture quality obtain relatively reliable guarantee.
Accompanying drawing explanation
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's management flow chart 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 computer
2 digital modules
3 programmable resistances
4 insulation Hi-pot Testers
5 oscillographs
6 programmable DC power supplys
7 programmable digital circuit testers
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 display lamp detection equipment
103 barcode scanner
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be by disclosed by this specification
Content understand other advantages and effect of the present invention easily.The present invention can also be added by the most different detailed description of the invention
To implement or application, the every details in this specification can also be based on different viewpoints and application, in the essence without departing from the present invention
Various modification or change is carried out under god.
It should be noted that the diagram provided in the present embodiment illustrates the basic conception of the present invention the most in a schematic way, the most graphic
In component count, shape and size time only display with relevant assembly in the present invention rather than is implemented according to reality draw, its reality
During enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout kenel is likely to increasingly complex.
The analog quantity automatic checking system based on safety instrument of the present invention can be to the insulating properties of safety instrument, production interchange essence
The aspects such as degree, ripple, carrying load ability, power consumption, display lamp and digital communication are tested.With reference to Fig. 1, the present invention's
Analog quantity automatic checking system based on safety instrument include main control computer 1, digital module 2, programmable resistance 3, insulate resistance to
Pressure tester 4, oscillograph 5, programmable DC power supply 6, programmable digital circuit tester 7, signal generator 8, signal condition
Case 9 and fixture 10.Main control computer 1, digital module 2, programmable resistance 3, insulation Hi-pot Tester 4, oscillograph 5,
Programmable DC power supply 6, programmable digital circuit tester 7 are all connected with signal process box 9 with signal generator 8, signal condition
Case 9 is connected by flexible cable with fixture 10 again.PCI is passed through between main control computer 1, digital module 2, programmable resistance 3
Bus carries out data communication.Insulation Hi-pot Tester 4, oscillograph 5, programmable DC power supply 6, programmable digital circuit tester 7
And carry out data communication by GPIB/USBA/232/LAN between signal generator 8.
Wherein, main control computer 1 tests data for testing results software and storage, and by the way of multiple bus mixes
Other parts of checking system are controlled, so that checking system becomes an entirety.Use band in the present invention
There is the built-in industrial control machine of pci bus.
Digital module 2 is used for controlling relay switching channel, using the teaching of the invention it is possible to provide 160 road programmable digital passages.Adopt in the present invention
Be 7811R digital module.
Programmable resistance 3 is for providing 2 road above programmable resistance passages.In the present invention, the resolution of programmable resistance module
For 24bit, resistance range 0-16M Ω, provide load for tested object (Unit Under Test, UUT).
Insulation Hi-pot Tester 4 for carrying out the voltage-withstand test that insulate to tested object.
Oscillograph 5 is for exporting ripple and the numeral output waveform of tested object.
Programmable DC power supply 6 is for powering to tested object.
Programmable digital circuit tester 7 is for measuring output voltage and the output electric current of tested object, and tested object is defeated
Go out precision.
Signal generator 8 for providing the signal source of digital communication test to tested object.
Signal process box 9 includes high-voltage relay route matrix 91, low-voltage relay route matrix 92, resistance 93 and electric current loop
94, for building the test logic tested needed for tested object.Wherein, the present invention uses the resistance of 250 Ω and 4-20mA
Electric current loop.When needing a certain item performance testing tested object, need to build corresponding test logic in signal process box and enter
Row test.
Fixture 10 includes fixture external interface 101, display lamp detection equipment 102 and barcode scanner 103, is used for installing equipment under test.
Wherein, fixture external interface 101 is for being connected with tested object.Display lamp detection equipment 102 is used for detecting tested object
Display lamp whether light.If lighting, then prove that tested object normally connects；If non-lit up, then prove tested object
Abnormal connection, just can carry out the test of correlated performance after needing to adjust.Barcode scanner 103 is for scanning the two dimension on tested object
Code, to obtain the relevant information of tested object, and the data that will obtain according to the storage of this Quick Response Code, process test.
Preferably, current/voltage output card is also included.It is connected with main control computer, for the input when testing tested object
Required electric current and voltage.
Specifically, in actual use, the analog quantity automatic checking system based on safety instrument of the present invention is placed in rack.
Generally, use the rack of standard 19 inches, be sequentially placed electric control box, signal generator, programmable digital ten thousand from top to bottom
With table, insulation Hi-pot Tester, oscillograph, keyboard and mouse, signal process box, main control computer, programmable DC power supply.
Oscillograph is fixed on rack side by rocking arm, can conveniently regulate, and operator is positioned on fixture by oscillograph during fixture operation
Side.When needs are by keyboard amendment parameter, keyboard can be moved on to rack front.Wherein, electric control box is for whole
The power supply of rack is controlled.
Signal process box is described in detail below.In the present invention, cabinet pattern is made in the conditioning of test system signal, i.e. believes
Number conditioning case.As in figure 2 it is shown, the front of signal process box is thermovent.If as it is shown on figure 3, the back side of signal process box is
Stem grafting mouth.Wherein, a part of interface is connected to tested object by cable；Another part interface is connected to fixture external interface,
This part connector supports fast insert-pull.The all resources of system guide to signal process box front panel by Fructus Musae head, it is simple to manually supervise
Survey signal and test system instrument calibration.
Specifically, at the analog quantity automatic checking system based on safety instrument of the present invention, the reference configuration of all parts such as table 1
Shown in.
Table 1, hardware reference configure
| 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 |
| Insulation Hi-pot Tester | GPT-9801 | GWinstek | 1 |
| Oscillograph | DSOX2022A | Agilent | 1 |
| Programmable digital circuit tester | 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, present invention analog quantity based on safety instrument automatic checking system carried out as
Lower setting:
(1) pcb board enters position, location, the non-regulation of door and window are opened etc. is respectively provided with security alarm；
(2) man machine interface, arranges security password management, the convenient management to equipment；
(3) equipment abnormal shutdown, everything keeps in situ, and after start, equipment all resets；
(4) emergency stop switch, the process being conveniently in an emergency are placed in the easy operating position of equipment personnel.
Main control computer runs and has test software.The structure chart of test software is as shown in Figure 4.Wherein, system interface provides
Enter each functional module interface.Wherein parameter configuration module is to operate Access data base, corresponding to former ICD number
The pin of TCH test channel actually used when testing and system under test (SUT) is mapped, ICD number according to the channel information preserved in storehouse
It is mapped according to storehouse and the test being actually needed.It is each that flow process configuration module has needed when being used to configure test every time
Individual test procedure, and each step uses test resource, the information such as passage corresponding relation.Configure testing process
After, when needs are tested, the testing process configuration file being directly loaded into this test corresponding just can complete, without every time
Test all reconfigures testing process.System self-test module is used for detecting the duty of test system itself, including used
TCH test channel between modular instrument, test resource and system under test (SUT), configuration file etc..
In view of safety problem, the analog quantity automatic checking system based on safety instrument of the present invention provides rights management function, only
There are specific operation personnel just can carry out equipment operation.And the main interface of test software of main control computer is that entrance system carries out every behaviour
Make and the entrance door of management, here can all functions of light calling system.Want to enter test software, it is necessary to carry
For corresponding user profile.
Specifically, user profile includes user name, password and authority.The information of all users is stored to registration table, literary composition by software
Part, data base or the webserver are carried out preserve and read inquiry.Especially, for the safety of user profile, password warp
Cross md5 encryption to preserve.Wherein, user's management process is as shown in Figure 5.In the present invention, System Privileges is divided into two classes: management
Member and operator.Manager can enter system configuration, flow process editor, test run, board, browsing data, daily record
The functional module such as browse to operate.Operator can only enter test run and Log Browser functional module operates.But behaviour
The authority of author can be added according to practical situation and delete.
Data stewardship program in the analog quantity automatic checking system based on safety instrument of the present invention is as shown in Figure 6.Test every time
Time, all of test data and system information are stored to data base, and by Network Synchronization to central server, then data
Browse module to be connected with Database, the operation such as inquire about, analyze and browse to storing to the information of data base.
Data management is the best means of test process reproduction, and test data can be preserved by systems soft ware after the test is ended,
Mistake in test process also will be preserved by system, in case day post debugging.Software provides data management function also to comprise browsing data,
The test data of storage can be browsed and analyze.
In sum, the analog quantity automatic checking system based on safety instrument of the present invention uses modular construction, conveniently dismounting,
Flexible combination, it is possible to extension measuring range, strengthens power of test, is adapted to different occasions, and differently configured module can be real
Existing different function, demand；The objective unification of touchstone, assay accuracy is high；Check number shows information system management factually,
Can realize real-time data acquisition, process, show, record playback, the product of plant produced can be reviewed, the quality of components and parts
Management obtains effective monitoring；Decreasing artificial uncontrollable factor, automatization makes manufacture quality obtain relatively reliable guarantee.Institute
With, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Any it is familiar with this skill
Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage of art.Therefore, such as
All that in art, tool usually intellectual is completed under without departing from disclosed spirit and technological thought etc.
Effect is modified or changes, and must be contained by the claim of the present invention.
Claims (10)
1. an analog quantity automatic checking system based on safety instrument, it is characterised in that: at least include: main control computer, numeral mould
Block, programmable resistance, insulation Hi-pot Tester, oscillograph, programmable DC power supply, programmable digital circuit tester, signal
Generator, signal process box and fixture；Described main control computer, described digital module, described programmable resistance, described absolutely
Edge Hi-pot Tester, described oscillograph, described programmable DC power supply, described programmable digital circuit tester and described signal are sent out
Raw device is 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 for testing results software and storage test data, and is controlled whole checking system；
Described digital module is for controlling the switching channel of the relay of described signal process box；
Described programmable resistance is for providing 2 road above programmable resistance passages；
Described insulation Hi-pot Tester for carrying out the voltage-withstand test that insulate to tested object；
Described oscillograph is for exporting ripple and the numeral output waveform of tested object；
Described programmable DC power supply is for powering to tested object；
Described programmable digital circuit tester is for measuring output voltage and the output electric current of tested object, and tested object
Output accuracy；
Described signal generator for providing the signal source of digital communication test to tested object；
Described signal process box is for building the test logic tested needed for tested object；
Described fixture is used for installing equipment under test.
Analog quantity automatic checking system based on safety instrument the most according to claim 1, it is characterised in that: described master control calculates
Machine is the built-in industrial control machine with pci bus.
Analog quantity automatic checking system based on safety instrument the most according to claim 1, it is characterised in that: described signal condition
Case includes high-voltage relay route matrix, low-voltage relay route matrix, resistance and electric current loop.
Analog quantity automatic checking system based on safety instrument the most according to claim 1, it is characterised in that: described fixture includes
Fixture external interface, display lamp detection equipment and barcode scanner.
Analog quantity automatic checking system based on safety instrument the most according to claim 4, it is characterised in that: described fixture is external
Interface is for being connected with tested object；Described display lamp detection equipment is for detecting the display lamp whether point of tested object
Bright；Described barcode scanner is for scanning the Quick Response Code on tested object, to obtain the information of tested object.
Analog quantity automatic checking system based on safety instrument the most according to claim 1, it is characterised in that: also include electric current electricity
Pressure output card, the electric current needed for the input when testing tested object and voltage.
Analog quantity automatic checking system based on safety instrument the most according to claim 1, it is characterised in that: described master control calculates
Data communication is carried out by pci bus between machine, described digital module and described programmable resistance.
Analog quantity automatic checking system based on safety instrument the most according to claim 1, it is characterised in that: described insulation is pressure
Tester, described oscillograph, described programmable DC power supply, described programmable digital circuit tester and described signal generator it
Between carry out data communication by GPIB/USBA/232/LAN.
Analog quantity automatic checking system based on safety instrument the most according to claim 1, it is characterised in that: described based on safety
The analog quantity automatic checking system of instrument is placed in rack.
Analog quantity automatic checking system based on safety instrument the most according to claim 1, it is characterised in that: described signal is adjusted
The back side of reason case arranges some interfaces；A portion interface is connected to tested object by cable；Another part interface is even
Receive fixture external interface.
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| CN110515369B (en) * | 2019-08-29 | 2022-11-15 | 西门子工厂自动化工程有限公司 | Safety association data processing method and device of automatic control system |
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