CN201532777U - Nuclear power plant signal acquisition and driving control system - Google Patents
Nuclear power plant signal acquisition and driving control system Download PDFInfo
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- CN201532777U CN201532777U CN2009202603436U CN200920260343U CN201532777U CN 201532777 U CN201532777 U CN 201532777U CN 2009202603436 U CN2009202603436 U CN 2009202603436U CN 200920260343 U CN200920260343 U CN 200920260343U CN 201532777 U CN201532777 U CN 201532777U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The utility model relates to a nuclear power plant signal acquisition and driving control system, which comprises a control cabinet and on-site equipment. The control cabinet comprises at least one processor, each processor is provided with an interface module, the on-site equipment comprises at least one intelligent meter, each intelligent meter is provided with a signal converting module, each interface module is connected to one end of a main signal transmission line, the other end of each main signal transmission line is connected with each signal converting module through at least one secondary signal transmission line, and each intelligent meter converts digital control signals received from the processor into analog signals to actuate corresponding actions, and/or converts collected analog measuring data into digital signals through the signal converting module and then transmit the signals to the processor. The nuclear power plant signal acquisition and driving control system can realize control and acquired signal transmission between the control cabinet and the on-site equipment only needing few signal transmission lines, reduces cost, decreases inference of signal transmission, and guarantees accuracy of acquiring and controlling signals.
Description
Technical field
The utility model belongs to the thermal meter technical field, more particularly, relates to a kind of nuclear power station signals collecting and driving control system.
Background technology
As shown in Figure 1, present nuclear power station signals collecting and driving control system mainly comprise control rack 10 and equipment 20 on the spot.Wherein control rack 10 and comprise main processor 11A of using and backup processor 11B, be redundant configuration.Main with corresponding interface module 12A and the interface module 12B of being provided with of processor 11A with backup processor 11B, and and each instrument between send and the I/O module 13a to 13e of reception simulating signal.Equipment 20 comprises various instrument on the spot, as instrument a to e.The data measured of the instrument a to e of equipment 20 are simulating signal on the spot, therefore are the measurement data of coming transportation simulator by cable on the spot between the I/O module 13a to 13e of the instrument a to e of equipment 20 and processor.Equally, the control signal of the instrument a to e of equipment 20 response also is a simulating signal on the spot, so also need to transmit by cable the control signal of this simulation.
Yet, because the metered quantity in the equipment 20 is huge on the spot, and each instrument needs at least one independent cable to send and receive simulating signal, therefore control rack 10 and on the spot the connection between the equipment 20 just need a large amount of cables, not only increase the cost (comprising cable, crane span structure etc.) of consumptive material, also increased the workload of construction maintenance.Simultaneously, cable exists electromagnetic interference problem when transmission of analogue signal, has influenced the accurate transmission of signal, may cause security incident thus, and consequence is comparatively serious.
The utility model content
The technical problems to be solved in the utility model is, at between the above-mentioned control rack of prior art and the processor by the defective of many cable transmission simulating signals, a kind of nuclear power station signals collecting and driving control system that carries out communication by a few signals transmission line digital signal is provided.
The technical scheme that its technical matters that solves the utility model adopts is: adopting the intelligence instrument that has analog-digital conversion function in the equipment on the spot, with the conversion between automatic realization simulating signal and the digital signal, thereby the processor of control rack and only need transmission of digital signals between the intelligence instrument of equipment on the spot, the collection that just can time signal and the control of instrument.
The utility model provides a kind of nuclear power station signals collecting and driving control system, comprising:
The control rack, described control rack comprises at least one processor, each described processor is provided with interface module;
Equipment on the spot, described equipment on the spot comprises at least one intelligence instrument, each described intelligence instrument is provided with signal conversion module;
Described each interface module is connected in an end of a main signal transmission line, link to each other by at least one signal transmssion line between the other end of every main signal transmission line and each signal conversion module, the control signal of the numeral that each intelligence instrument will receive from processor by signal conversion module is converted to simulating signal and carries out corresponding actions, and/or the measurement data of the simulation that will gather by signal conversion module is converted to digital signal and sends to processor and handle.
In nuclear power station signals collecting described in the utility model and driving control system, described control rack comprises the first processor and second processor, and described first processor is that the master uses processor, and described second processor is a backup processor.
In nuclear power station signals collecting described in the utility model and driving control system, contain control class instrument in described a plurality of intelligence instrument, the described signal conversion module of its setting is a D/A converter module, and the control signal of the first processor that will receive from described time coupled signal transmssion line or the numeral of second processor is converted to simulating signal and drives this intelligence instrument.
In nuclear power station signals collecting described in the utility model and driving control system, contain in described a plurality of intelligence instrument and measure the class instrument, the described signal conversion module of its setting is an analog-to-digital conversion module, with the analog signal conversion of this measurement instrument collection is digital signal, sends to described first processor and second processor is handled.
In nuclear power station signals collecting described in the utility model and driving control system, the part that described each intelligence instrument is connected with time signal transmssion line is main with time signal transmssion line, and part time signal transmssion line is standby signal transmssion line.
In nuclear power station signals collecting described in the utility model and driving control system, described control class instrument is the control module of control nuclear power station valve site, motor or pump.
In nuclear power station signals collecting described in the utility model and driving control system, described measurement class instrument is the instrument of pressure, flow or the rotating speed at measurement nuclear power station scene.
In nuclear power station signals collecting described in the utility model and driving control system, described main signal transmission line is a twisted-pair feeder.
Implement nuclear power station signals collecting of the present utility model and driving control system, has following beneficial effect: control rack in this system and pass through a spot of signal transmssion line transmission of digital signals on the spot between the equipment, with the collection of realization signal and the drive controlling of instrument, reduced the cost of consumptive material; Reduce the interference of signal transmission simultaneously, ensured the accuracy of collection and control signal.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of nuclear power station signals collecting and driving control system in the prior art;
Fig. 2 is the structural representation of an embodiment of the utility model nuclear power station signals collecting and driving control system.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also Fig. 1, nuclear power station signals collecting that the utility model provides and driving control system mainly comprise control rack 100 and equipment 200 on the spot.Wherein, described control rack 100 comprises at least one processor.In the present embodiment, control rack 100 comprises the first processor 110 and second processor 120, is respectively main with processor and backup processor, Rong Yu relation each other.In nuclear power projects, in order to guarantee reliability, general processor all is a redundant configuration, and one main one is equipped with.When normal operation, a processor is in the state of " master ", and another processor is in the state of " being equipped with ".If be in the processor fault of " master " state, the processor that then is in " being equipped with " state can obtain control automatically.Therefore, the first processor 110 here and second processor 120 are actually in order to guarantee reliability setting.Equally,, also can suitably increase the quantity of processor,, ensure the security of nuclear power operation to realize more reliable control in order to guarantee the reliability of system.
Each described processor is provided with interface module, is provided with interface module 111, the second processors 120 as first processor 110 and is provided with interface module 121, is used for transmitting control signal and measurement data that receiving instrument is gathered.
Control rack 100 is with being connected by signal transmssion line between the equipment 200 finishes on the spot.Wherein each interface module is connected in an end of a main signal transmission line, links to each other by at least one signal transmssion line between the other end of every main signal transmission line and each signal conversion module.As shown in Figure 2, the interface module 111 of first processor 110 links to each other with an end of the first main signal transmission line 310.The other end of the first main signal transmission line 310 is connected to equipment 200 places on the spot, so that itself and being connected of each intelligence instrument.For example, the signal conversion module 211 of first intelligence instrument 210 by the first time signal transmssion line 411 be connected to the first main signal transmission line 310, thereby realize the signal transmission between first processor 110 and first intelligence instrument 210.Equally, second intelligence instrument 220 by two for the second time signal transmssion line 421 be connected to the first main signal transmission line 310; The 3rd intelligence instrument 230 is connected to the first main signal transmission line 310 by signal transmssion line 431 for the third time; The 4th intelligence instrument 240 is connected to the first main signal transmission line 310 by two the 4th signal transmssion lines 441; Thereby realized that respectively the signal between second intelligence instrument 220, the 3rd intelligence instrument 230 and the 4th intelligence instrument 240 and the first processor 110 transmits.And similarly, the interface module 121 of second processor 120 links to each other with an end of the second main signal transmission line 320.The other end of the second main signal transmission line 320 is connected to equipment 200 places on the spot, so that itself and being connected of each intelligence instrument.For example, the signal conversion module 211 of first intelligence instrument 210 by the first time signal transmssion line 412 be connected to the second main signal transmission line 310, thereby realize that the signal between second processor 120 and first intelligence instrument 210 transmits.Correspondingly, second intelligence instrument 220 by two for the second time signal transmssion line 422 be connected to the second main signal transmission line 320; The 3rd intelligence instrument 230 is connected to the second main signal transmission line 320 by signal transmssion line 432 for the third time; The 4th intelligence instrument 240 is connected to the second main signal transmission line 320 by two the 4th signal transmssion lines 442; Thereby realized that respectively the signal between second intelligence instrument 220, the 3rd intelligence instrument 230 and the 4th intelligence instrument 240 and second processor 120 transmits.
The preferred twisted-pair feeder of described main signal transmission line, this is the most common signal transmission line, is the Network Transfer Media that the copper conductor by two mutually insulateds is intertwined mutually and forms according to certain specification.Twisted-pair feeder mainly is used for transmission of analogue signal, but is equally applicable to the transmission of digital signal.If the interference equal and opposite in direction that the external electromagnetic signal produces on two leads of twisted-pair feeder and phase place is opposite, this undesired signal will be cancelled out each other so.Therefore, use twisted-pair feeder can effectively reduce the interference of signal transmission.In addition,, can adopt optical fiber to transmit if the distance of transmission is longer, if adopt optical fiber as transmission medium, then need the control rack and on the spot the equipment both sides respectively add a fiber optic switching module.
Contain control class instrument in described a plurality of intelligence instrument, the described signal conversion module of its setting is a D/A converter module, and the control signal of the first processor that will receive from described time coupled signal transmssion line or the numeral of second processor is converted to simulating signal and drives this intelligence instrument.Described control class instrument is the control module of control nuclear power station valve site, motor or pump.In Fig. 2, first intelligence instrument 210 and second intelligence instrument 220 are control class instrument.
Contain in described a plurality of intelligence instrument and measure the class instrument, the described signal conversion module of its setting is an analog-to-digital conversion module, is digital signal with the analog signal conversion of this measurement instrument collection, sends to described first processor and second processor is handled.Described measurement class instrument is the instrument of pressure, flow or the rotating speed at measurement nuclear power station scene.In Fig. 2, the 3rd intelligence instrument 220 and the 4th intelligence instrument 230 are for measuring the class instrument.
When nuclear power station signals collecting that provides at the utility model and driving control system carry out signal controlling, when controlling first intelligence instrument 210 and realize control to the nuclear power station valve site as needs.At first, generate the control signal of the numeral that has first intelligence instrument, 210 station number information, send, be sent to equipment 200 places on the spot by the first main signal transmission line 310 by interface module 111 by first processor 110.At this moment, first intelligence instrument 210 by the first time signal transmssion line 411 detect this control signal and have its corresponding station number information, and it is received.First intelligence instrument, 210 built-in signal conversion module 211 are D/A converter module, and the control signal that this is digital is converted to the control signal of simulation, carries out work thereby drive first intelligence instrument 210, realize the control to valve site.If first processor 110 faults or other reason do not start, and by after second processor, the 120 automatic acquisition controls, then generate the control signal of the numeral that has first intelligence instrument, 210 station number information by second processor 120, send by interface module 121, be sent to equipment 200 places on the spot by the second main signal transmission line 320.At this moment, first intelligence instrument 210 by the first time signal transmssion line 412 detect this control signal and have its corresponding station number information, and it is received.Therefore, the signal transmssion line 411 and 422 first time of two first intelligence instruments 210 also is presented as the function of the inferior signal transmssion line and the standby inferior signal transmssion line of main usefulness.
When nuclear power station signals collecting that provides at the utility model and driving control system carry out signals collecting, when gathering the measurement data of the 3rd intelligence instrument 230 as needs.At first, the pressure at the nuclear power station scene of measuring by the 3rd intelligence instrument 230, the data of this measurement are simulating signal, the signal conversion module 231 that is provided with in the 3rd intelligence instrument 230 is an analog-to-digital conversion module, with this analog signal conversion is digital signal, send first processor 110 to by the interface module 111 of signal transmssion line 431, the first main signal transmission line 310, first processor 110 for the third time successively again and handle, thereby realize collection on-site signal.Correspondingly, also can send second processor 120 to by the interface module 121 of signal transmssion line 432, the second main signal transmission line 320, second processor 120 for the third time handles.
Nuclear power station signals collecting and driving control system that the utility model provides, adopting the intelligence instrument that has analog-digital conversion function in the equipment on the spot, with the conversion between automatic realization simulating signal and the digital signal, thereby the processor of control rack and only need transmission of digital signals between the intelligence instrument of equipment on the spot, the collection that just can time signal and the control of instrument.The utility model only needs a spot of signal transmssion line just can realize controlling rack and the digital data transmission between the equipment on the spot, has reduced the cost of consumptive material; Reduce the interference of signal transmission simultaneously, accurately realized the collection of signal and the drive controlling of instrument.
The utility model is described according to specific embodiment, but it will be understood by those skilled in the art that when not breaking away from the utility model scope, can carry out various variations and be equal to replacement.In addition, for adapting to the specific occasion or the material of the utility model technology, can carry out many modifications and not break away from its protection domain the utility model.Therefore, the utility model is not limited to specific embodiment disclosed herein, and comprises that all drop into the embodiment of claim protection domain.
Claims (8)
1. nuclear power station signals collecting and driving control system is characterized in that, comprising:
The control rack, described control rack comprises at least one processor, each described processor is provided with interface module;
Equipment on the spot, described equipment on the spot comprises at least one intelligence instrument, each described intelligence instrument is provided with signal conversion module;
Described each interface module is connected in an end of a main signal transmission line, link to each other by at least one signal transmssion line between the other end of every main signal transmission line and each signal conversion module, the control signal of the numeral that each intelligence instrument will receive from processor by signal conversion module is converted to simulating signal and carries out corresponding actions, and/or the measurement data of the simulation that will gather by signal conversion module is converted to digital signal and sends to processor and handle.
2. nuclear power station signals collecting according to claim 1 and driving control system is characterized in that, described control rack comprises the first processor and second processor, and described first processor is that the master uses processor, and described second processor is a backup processor.
3. nuclear power station signals collecting according to claim 2 and driving control system, it is characterized in that, contain control class instrument in described a plurality of intelligence instrument, the described signal conversion module of its setting is a D/A converter module, and the control signal of the first processor that will receive from described time coupled signal transmssion line or the numeral of second processor is converted to simulating signal and drives this intelligence instrument.
4. nuclear power station signals collecting according to claim 2 and driving control system, it is characterized in that, contain in described a plurality of intelligence instrument and measure the class instrument, the described signal conversion module of its setting is an analog-to-digital conversion module, with the analog signal conversion of this measurement instrument collection is digital signal, sends to described first processor and second processor is handled.
5. according to claim 3 or 4 described nuclear power station signals collecting and driving control systems, it is characterized in that the part that described each intelligence instrument is connected with time signal transmssion line is main with time signal transmssion line, part time signal transmssion line is standby signal transmssion line.
6. nuclear power station signals collecting according to claim 3 and driving control system is characterized in that, described control class instrument is the control module of control nuclear power station valve site, motor or pump.
7. nuclear power station signals collecting according to claim 4 and driving control system is characterized in that, described measurement class instrument is the instrument of pressure, flow or the rotating speed at measurement nuclear power station scene.
8. nuclear power station signals collecting according to claim 1 and driving control system is characterized in that, described main signal transmission line is a twisted-pair feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202603436U CN201532777U (en) | 2009-11-11 | 2009-11-11 | Nuclear power plant signal acquisition and driving control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202603436U CN201532777U (en) | 2009-11-11 | 2009-11-11 | Nuclear power plant signal acquisition and driving control system |
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| Publication Number | Publication Date |
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| CN201532777U true CN201532777U (en) | 2010-07-21 |
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| CN2009202603436U Expired - Lifetime CN201532777U (en) | 2009-11-11 | 2009-11-11 | Nuclear power plant signal acquisition and driving control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970029A (en) * | 2012-11-06 | 2013-03-13 | 北京广利核系统工程有限公司 | High-safety digital quantity signal acquisition circuit |
-
2009
- 2009-11-11 CN CN2009202603436U patent/CN201532777U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970029A (en) * | 2012-11-06 | 2013-03-13 | 北京广利核系统工程有限公司 | High-safety digital quantity signal acquisition circuit |
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| GR01 | Patent grant | ||
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Granted publication date: 20100721 |