CN207123754U - A kind of device for testing switch acquisition real-time - Google Patents
A kind of device for testing switch acquisition real-time Download PDFInfo
- Publication number
- CN207123754U CN207123754U CN201720902644.9U CN201720902644U CN207123754U CN 207123754 U CN207123754 U CN 207123754U CN 201720902644 U CN201720902644 U CN 201720902644U CN 207123754 U CN207123754 U CN 207123754U
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- signal
- isolator
- fastener
- time
- signal generator
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Abstract
The utility model provides a kind of device for testing switch acquisition real-time, including scattered control system server, On-off signal fastener, signal isolator, analog switch amount trigger signal module；The signal output part of the analog switch amount trigger signal module and the signal receiving end of signal isolator connect；The signal output part of the signal isolator is connected with the signal receiving end of On-off signal fastener；The signal output part of the On-off signal fastener is connected with server.Compared with prior art, the real-time that on-off model gathers is gone out by the device to test, can effectively anti-stop signal erroneous judgement, reduce protection misoperation, improve the security of equipment and the reliability of protection.
Description
Technical field
The utility model belongs to industrial stokehold technical field, more particularly to a kind of test switch acquisition real-time
Device.
Background technology
The problem of switch acquisition is common in computer application.In thermal power plant's complex automatic system, for signal
The accuracy and real-time of collection all have higher requirements, as microcomputer protecting device, monitoring system and automation equipment require
Switch acquisition in time, accurately, otherwise can cause remote signalling to judge by accident, even result in protection misoperation.In certain special cases, it is accurate
There may be conflict with real-time for true property.If just think of accuracy it is necessary to which using longer time as cost, electric power can not be met
System switch amount conjugates the requirement of temporal resolution.But just think of real-time, it is possible to judge to be forbidden, cause the frequency of switching value
Numerous displacement, influence the normal work of device.So properly solve the real-time of switch acquisition and accuracy problem to realizing
Thermal power plant's comprehensive automation has considerable meaning.
Utility model content
The purpose of this utility model can be sent out to solve the accuracy for signal acquisition in the prior art and real-time
The defects of raw conflict, there is provided a kind of device for testing switch acquisition real-time solves the above problems.
To achieve these goals, the technical solution of the utility model is as follows：
It is a kind of test switch acquisition real-time device, including scattered control system server, On-off signal fastener,
Signal isolator, analog switch amount trigger signal module；
The signal output part of the analog switch amount trigger signal module and the signal receiving end of signal isolator connect；Institute
The signal output part for stating signal isolator is connected with the signal receiving end of On-off signal fastener；The On-off signal fastener
Signal output part is connected with server.
Preferably, the analog switch amount trigger signal module is any including first any function signal generator and second
Function signal generator；First any function signal generator connected with the second arbitrary function signal generator after with it is described
Signal isolator connects.
Preferably, described first any function signal generator provides a fixed resistance value；Second arbitrary function signal
Generator sends the square wave voltage signal for being capable of trigger switch amount input card DI passages.
Preferably, the resistance is suitable with DI passage internal resistance values.
The utility model compared with prior art, has the advantages that：
The utility model is a kind of device for testing switch acquisition real-time, is touched using this method by analog switch amount
Signal, disturbed using signal isolator shielding outer signals after analog signal is more stablized, the signal is accessed and tested
DI passages, and the square-wave curve of the signal is observed on DCS pictures, by the frequency of square-wave signal added by adjustment, until drawing
Distortion phenomenon occurs for the square-wave curve on face, and the now added square-wave signal cycle is the real-time of switch acquisition.Pass through
This method tests out the real-time of on-off model collection, can effectively anti-stop signal erroneous judgement, reduce protection misoperation, raising is set
Standby security and the reliability of protection.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Embodiment
The effect of to make to architectural feature of the present utility model and being reached, has a better understanding and awareness, to compared with
Good embodiment and accompanying drawing coordinate detailed description, are described as follows：
It is industrial control as shown in figure 1, the utility model discloses a kind of device for testing on-off model collection real-time
System switch amount signal (DI) processed receives and the device of the test of processing speed.Including scattered control system (DCS) server,
On-off signal fastener, signal isolator, first any function signal generator, the second arbitrary function signal generator, wiring
Passage, control logic configuration.There is provided a fixed resistance value with first any function signal generator, (its size is interior with DI passages
Resistance is suitable), sending lower frequency certain voltage value with the second arbitrary function signal generator, (magnitude of voltage size depends on switching value
The trigger voltage of fastener) square wave voltage signal, access signal isolator after the series connection of two arbitrary function signal generators, through every
From the On-off signal fastener passage that test is accessed after device, and on DCS system picture observation signal trend；Gradually rise this
The frequency of square-wave voltage, until DCS system picture starts the phenomenon for square-wave curve distortion occur, DCS system picture institute can be correct
The square-wave cycle of reflection is the real-time of switch acquisition.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply principle of the present utility model, the utility model also has respectively on the premise of the spirit and scope of the utility model is not departed from
Kind changes and improvements, these changes and improvements are both fallen within claimed the scope of the utility model.The requires of the utility model
Protection domain defined by appended claims and its equivalent.
Claims (4)
- A kind of 1. device for testing switch acquisition real-time, it is characterised in that：Including scattered control system server, switching value Input card, signal isolator, analog switch amount trigger signal module；The signal output part of the analog switch amount trigger signal module and the signal receiving end of signal isolator connect；The letter The signal output part of number isolator is connected with the signal receiving end of On-off signal fastener；The signal of the On-off signal fastener Output end is connected with server.
- A kind of 2. device for testing switch acquisition real-time according to claim 1, it is characterised in that：The simulation is opened Pass amount trigger signal module includes first any function signal generator and the second arbitrary function signal generator；It is described first Meaning function signal generator is connected after being connected with the second arbitrary function signal generator with the signal isolator.
- A kind of 3. device for testing switch acquisition real-time according to claim 2, it is characterised in that：It is described first Function signal generator of anticipating provides a fixed resistance value；The second arbitrary function signal generator send can trigger switch amount it is defeated Enter the square wave voltage signal of fastener DI passages.
- A kind of 4. device for testing switch acquisition real-time according to claim 3, it is characterised in that：The fixed resistance Value is equal with DI passage internal resistance values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902644.9U CN207123754U (en) | 2017-07-24 | 2017-07-24 | A kind of device for testing switch acquisition real-time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902644.9U CN207123754U (en) | 2017-07-24 | 2017-07-24 | A kind of device for testing switch acquisition real-time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207123754U true CN207123754U (en) | 2018-03-20 |
Family
ID=61613038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720902644.9U Expired - Fee Related CN207123754U (en) | 2017-07-24 | 2017-07-24 | A kind of device for testing switch acquisition real-time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207123754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112748718A (en) * | 2020-12-15 | 2021-05-04 | 北京无线电测量研究所 | Servo control system debugging table and debugging method |
-
2017
- 2017-07-24 CN CN201720902644.9U patent/CN207123754U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112748718A (en) * | 2020-12-15 | 2021-05-04 | 北京无线电测量研究所 | Servo control system debugging table and debugging method |
| CN112748718B (en) * | 2020-12-15 | 2022-08-05 | 北京无线电测量研究所 | Servo control system debugging table and debugging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 Termination date: 20180724 |