CN206805286U - A kind of device of DCS system simulations amount signal acquisition browsing real-time data - Google Patents
A kind of device of DCS system simulations amount signal acquisition browsing real-time data Download PDFInfo
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- CN206805286U CN206805286U CN201720704229.2U CN201720704229U CN206805286U CN 206805286 U CN206805286 U CN 206805286U CN 201720704229 U CN201720704229 U CN 201720704229U CN 206805286 U CN206805286 U CN 206805286U
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- voltage source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a kind of device of DCS system analog signalses collection browsing real-time data, including scattered control system controller (1), analog input fastener (2), bias direct current voltage source (3), alternating sinusoidal voltage source (4), wherein analog input fastener (2) includes several AI passages, connected between wherein tested two input ports of AI passages the bias direct current voltage source (3) and alternating sinusoidal voltage source (4), the output end of tested AI passages is connected to scattered control system controller (1), the scattered control system controller (1) is connected with display (12).The utility model has advantages below compared with prior art：Bias voltage is provided using a direct voltage source, gradually increases the frequency of sinusoidal alternating voltage source, until sinusoidal wave distortion on the picture of DCS system, the cycle is the real-time of system simulation amount collection, can accurately reflect the real-time of analog signalses collection.
Description
Technical field
The utility model belongs to industrial stokehold technical field, more particularly to a kind of signal pickup assembly.
Background technology
DCS system analog acquisition signalling channel completes the survey pick-up of equipment main analog amount parameter, critical analog amount ginseng
Several control, regulation and protection alarm etc..The real-time of analog acquisition should be consistent with the setting sampling period, otherwise just up to not
To the requirement of system real time.Therefore, the test that DCS system analog signalses are gathered with real-time is particularly important.
The method of the analog signalses collection browsing real-time data of Present Thermal Power unit is by configurable controller, receives AI
The analog quantity modular converter output of passage, connects high/low limit alarm module, and high level is converted to logical signal " 1 ", less than high electricity
Ordinary mail number is converted to logical signal " 0 ", and logical signal is through rolling counters forward.Using pulse signal generator to analog signal input card
Can part terminal adds square-wave pulse signal, change the frequency of signal and correctly add up input pulse number by observing counter to sentence
The real-time of disconnected analog signalses collection, this method of testing using pulse square wave are limited in that, it is impossible to AI passages
Point in range is analyzed point by point, i.e., can not accurately reflect the real-time of analog signalses collection, therefore is proposed a kind of
DCS system analog signalses gather the device of browsing real-time data.
Utility model content
Technical problem to be solved in the utility model, which is the provision of one kind, can accurately reflect analog signalses
The device of the DCS system analog signalses collection browsing real-time data of the real-time of collection.
The utility model is that solve above-mentioned technical problem by the following technical programs：A kind of DCS system analog signalses
The device of browsing real-time data is gathered, including scattered control system controller display (1), analog input fastener (2), biasing are directly
Voltage source (3), alternating sinusoidal voltage source (4) are flowed, wherein analog input fastener (2) includes several AI passages, wherein tested
Connect the bias direct current voltage source (3) between two input ports of AI passages of examination and alternating sinusoidal voltage source (4), the AI lead to
Road output end connection scattered control system controller (1), scattered control system controller (1) are connected with display (12).
Optimization, also set up a switch between the bias direct current voltage source (3) and alternating sinusoidal voltage source (4).
Optimization, the bias direct current voltage source (3) and alternating sinusoidal voltage source (4) use voltage signal generator.
Optimization, the model FLUKE754 of the bias direct current voltage source (3) and alternating sinusoidal voltage source (4).
As another optional technical scheme, the alternating sinusoidal voltage source (4) uses voltage signal generator, biasing
Direct voltage source (3) uses dry cell.
Optimization, the device also includes voltage measuring apparatus (5) and switchs (6), on bias direct current voltage source (3) simultaneously
It is associated with the voltage measuring apparatus (5) and switch (6) of series connection.
Optimization, the model FLUKE754 of the alternating sinusoidal voltage source (4).
The utility model has advantages below compared with prior art：
1st, bias voltage is provided using a direct voltage source, gradually increases the frequency of sinusoidal alternating voltage source, until DCS systems
Sinusoidal wave distortion on the picture of system, the cycle are the real-time of system simulation amount collection, can accurately reflect analog quantity
The real-time of signal acquisition.
2nd, the accuracy of DC offset voltage is ensured using a voltage measuring apparatus.
3rd, give loop with whole voltage in voltage measuring apparatus loop respectively and connect a switch, facilitate the break-make in loop.
Brief description of the drawings
Fig. 1 is that the structure of the device embodiment one of the utility model DCS system analog signalses collection browsing real-time data is shown
It is intended to；
Fig. 2 is that the structure of the device embodiment two of the utility model DCS system analog signalses collection browsing real-time data is shown
It is intended to.
Embodiment
Embodiment of the present utility model is elaborated below, the present embodiment using technical solutions of the utility model before
Put and implemented, give detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited
In following embodiments.
Embodiment one
As shown in figure 1, the device of the present embodiment DCS system analog signalses collection browsing real-time data includes decentralised control system
System controller (DCS) 1, analog input fastener 2, bias direct current voltage source 3, alternating sinusoidal voltage source 4.
Wherein analog input fastener 2 includes several AI passages, wherein tested two input ports of AI passages it
Between connect the bias direct current voltage source 3 and alternating sinusoidal voltage source 4, the output end of AI passages connects the scattered control system
Controller 1, the scattered control system controller 1 are connected with display 12, and simulation numerical quantity is dispersed through controlling corresponding to the AI passages
System controller 1 processed calls, and is shown in display 12.Preferably, between bias direct current voltage source 3 and alternating sinusoidal voltage source 4
It is provided with switch.
Wherein, the bias direct current voltage source 3 and alternating sinusoidal voltage source 4 use voltage signal generator.It can adopt
Model FLUKE754.
One voltage signal generator depends on analog input fastener 2 as bias DC voltage source, voltage set value
In be tested AI passages internal resistance, in addition a voltage signal generator send the sinusoidal alternating voltage of lower frequency, make AI
Passage input signal concussion, and on the picture of scattered control system controller display 1 observation signal trend；Gradually rise
The frequency of high sinusoidal alternating voltage, until the picture of scattered control system controller display 1 starts sinusoidal wave distortion occur
Phenomenon, the sine wave period that the picture of scattered control system controller display 1 can correctly reflect is that analog signalses are adopted
The real-time of collection.
Embodiment two
As shown in Fig. 2 the device of the present embodiment DCS system analog signalses collection browsing real-time data includes decentralised control system
System controller (DCS) 1, analog input fastener 2, bias direct current voltage source 3, alternating sinusoidal voltage source 4, voltage measuring apparatus 5
And switch 6.
Connected the bias direct current between two input ports of the AI passages being tested wherein in analog input fastener 2
Voltage source 3 and alternating sinusoidal voltage source 4, the output end of AI passages connect the scattered control system controller 1, the decentralised control
System controller 1 has display 12, and simulation numerical quantity corresponding to the AI passages is dispersed through control system controller 1 and called, and shows
Display 12 is shown in, the voltage measuring apparatus 5 and switch 6 of series connection are parallel with bias direct current voltage source 3.
Wherein, the alternating sinusoidal voltage source 4 uses voltage signal generator, and bias direct current voltage source 3 uses dry cell,
Because dry cell voltage in discharge process may change, it is therefore desirable to which a voltage measuring apparatus 5, the voltage measuring apparatus 5 can
So that FLUKE754 can be selected using universal meter, alternating sinusoidal voltage source 4.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of device of DCS system analog signalses collection browsing real-time data, it is characterised in that including scattered control system control
Device (1) processed, analog input fastener (2), bias direct current voltage source (3), wherein alternating sinusoidal voltage source (4), analog input
Fastener (2) includes several AI passages, wherein the bias direct current electricity of being connected between tested two input ports of AI passages
Potential source (3) and alternating sinusoidal voltage source (4), AI channel output ends connection scattered control system controller (1), decentralised control system
System controller (1) is connected with display (12).
2. a kind of device of DCS system analog signalses collection browsing real-time data according to claim 1, its feature exist
In also setting up a switch between the bias direct current voltage source (3) and alternating sinusoidal voltage source (4).
3. a kind of device of DCS system analog signalses collection browsing real-time data according to claim 1, its feature exist
In the bias direct current voltage source (3) and alternating sinusoidal voltage source (4) use voltage signal generator.
4. a kind of device of DCS system analog signalses collection browsing real-time data according to claim 3, its feature exist
In the model FLUKE754 of the bias direct current voltage source (3) and alternating sinusoidal voltage source (4).
5. a kind of device of DCS system analog signalses collection browsing real-time data according to claim 1, its feature exist
In the alternating sinusoidal voltage source (4) uses voltage signal generator, and bias direct current voltage source (3) uses dry cell.
6. a kind of device of DCS system analog signalses collection browsing real-time data according to claim 5, its feature exist
In the device also includes voltage measuring apparatus (5) and switch (6), and the voltage of series connection is parallel with bias direct current voltage source (3)
Measurement apparatus (5) and switch (6).
7. a kind of device of DCS system analog signalses collection browsing real-time data according to claim 5, its feature exist
In the model FLUKE754 of the alternating sinusoidal voltage source (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704229.2U CN206805286U (en) | 2017-06-16 | 2017-06-16 | A kind of device of DCS system simulations amount signal acquisition browsing real-time data |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704229.2U CN206805286U (en) | 2017-06-16 | 2017-06-16 | A kind of device of DCS system simulations amount signal acquisition browsing real-time data |
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| Publication Number | Publication Date |
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| CN206805286U true CN206805286U (en) | 2017-12-26 |
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| CN201720704229.2U Expired - Fee Related CN206805286U (en) | 2017-06-16 | 2017-06-16 | A kind of device of DCS system simulations amount signal acquisition browsing real-time data |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508878A (en) * | 2018-06-30 | 2018-09-07 | 中国华电集团科学技术研究总院有限公司 | A kind of validation checking system and method for power plant analog output channel |
| CN109343511A (en) * | 2018-10-22 | 2019-02-15 | 贵州电网有限责任公司 | A kind of DCS control system common mode and series mode rejection ratio test device and test method |
| CN109688032A (en) * | 2019-03-04 | 2019-04-26 | 国电科学技术研究院有限公司 | A kind of network transmission performance test method and device |
-
2017
- 2017-06-16 CN CN201720704229.2U patent/CN206805286U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508878A (en) * | 2018-06-30 | 2018-09-07 | 中国华电集团科学技术研究总院有限公司 | A kind of validation checking system and method for power plant analog output channel |
| CN109343511A (en) * | 2018-10-22 | 2019-02-15 | 贵州电网有限责任公司 | A kind of DCS control system common mode and series mode rejection ratio test device and test method |
| CN109688032A (en) * | 2019-03-04 | 2019-04-26 | 国电科学技术研究院有限公司 | A kind of network transmission performance test method and device |
| CN109688032B (en) * | 2019-03-04 | 2023-09-22 | 国家能源集团科学技术研究院有限公司 | Network transmission performance testing method and device |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180616 |
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| CF01 | Termination of patent right due to non-payment of annual fee |