CN204695077U - A kind of valve long distance control system based on PLC - Google Patents
A kind of valve long distance control system based on PLC Download PDFInfo
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- CN204695077U CN204695077U CN201520442390.8U CN201520442390U CN204695077U CN 204695077 U CN204695077 U CN 204695077U CN 201520442390 U CN201520442390 U CN 201520442390U CN 204695077 U CN204695077 U CN 204695077U
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Abstract
The utility model discloses a kind of valve long distance control system based on PLC, it is characterized in that: comprise radio transmitting tower, system monitoring center, multiple valving station, valving station comprises PLC body module and connected wireless data transmission module, PLC body module output terminal is connected with A/D modular converter and I/O module respectively, A/D modular converter is connected with sensor group, I/O module is connected with intelligent drive device, and intelligent drive device is connected with valve; Wireless data transmission module one end is connected by RS485 interface mode with the communication module be embedded in PLC body module, and the other end is then connected with the server serial ports at system monitoring center by standard RS232 interface.The utility model is easy to operate, and reliability is high, and performance safety is stablized, and man-machine interface is friendly, and effect is good, and working service is convenient, has good extensibility and higher practical value.
Description
Technical field
The utility model relates to equipment remote monitoring technical field, especially relates to a kind of valve long distance control system based on PLC.
Background technology
Programmable Logic Controller is as the special computing machine of Industry Control, because its structure is simple, function admirable, good in anti-interference performance, reliability is high, programming is simple, debugging is convenient, is applied increasingly widely at industry Industry Control scenes such as machinery, chemical industry, rubber, electric power, petroleum gases, becomes the topmost control device that industry control scene carries out controlling in real time.The serial communication simultaneously utilizing PLC to have and computer remote communication function, can realize the remote centralized control of computing machine to multiple stage PLC control device.
On oil, the long-range delivery line of rock gas, large-caliber gas-oil pipeline valve is one of important infrastructure device, there is the several functions such as cut-off, unlatching, dispensing and pressure regulation, light once break down, affect the conveying function of pipeline, heavy then cause the havoc of pipeline even to cause life safety, therefore the omnidistance condition monitoring of oil and gas pipes and valve is seemed particularly important.
But poor to the monitoring reliability of oil and gas pipes valve in prior art, performance is stable not, effect is not fine, safeguards inconvenience, does not have the centralized control of a kind of PLC of utilization to carry out the set of equipments system of remote monitoring to large-caliber gas-oil pipeline valve.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of valve long distance control system based on PLC is provided, the utility model is made up of a master station and some valve slave stations, adopt wireless digital broadcasting station to interconnect between main website and slave station, the outstanding feature of this system is that on-site data gathering and equipment control to be realized by PLC.It is easy to operate, and reliability is high, and performance safety is stablized, and man-machine interface is friendly, and effect is good, and working service is convenient, has good extensibility and higher practical value.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of valve long distance control system based on PLC, it is characterized in that: comprise radio transmitting tower, system monitoring center, multiple valving station, the wireless data transmission module that described valving station comprises PLC body module and is connected with PLC body module, described PLC body module output terminal is connected with A/D modular converter and I/O module respectively, described A/D modular converter is connected with sensor group, described I/O module is connected with intelligent drive device, and described intelligent drive device is connected with valve; Described wireless data transmission module one end is connected by RS485 interface mode with the communication module be embedded in PLC body module, and the other end is then connected with the server serial ports at system monitoring center by standard RS232 interface.
Above-mentioned a kind of valve long distance control system based on PLC, is characterized in that: the FX2N-32MR that described PLC body module selects Mitsubishi Electric Corporation to produce.
Above-mentioned a kind of valve long distance control system based on PLC, is characterized in that: described A/D modular converter selects the FX2N-4AD supporting with PLC body module.
Above-mentioned a kind of valve long distance control system based on PLC, is characterized in that: described wireless data transmission module selects the MDS2710 digital transmission radio station of the U.S..
Above-mentioned a kind of valve long distance control system based on PLC, is characterized in that: described in the communication module be embedded in PLC body module be FX2n-485-BD.
Above-mentioned a kind of valve long distance control system based on PLC, is characterized in that: described sensor group comprises temperature sensor, flow sensor and pressure transducer.
The utility model compared with prior art has the following advantages:
The utility model is made up of a master station and some valve slave stations, adopts wireless digital broadcasting station to interconnect between main website and slave station, and the outstanding feature of this system is that on-site data gathering and equipment control to be realized by PLC.It is easy to operate, and reliability is high, and performance safety is stablized, and man-machine interface is friendly, and effect is good, and working service is convenient, has good extensibility and higher practical value.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is valve long distance control system structured flowchart of the present utility model;
Fig. 2 is valve long distance control system valve driving machine major loop of the present utility model and PLC outside terminal circuit diagram.
Embodiment
As shown in Figure 1, a kind of valve long distance control system based on PLC, it is characterized in that: comprise radio transmitting tower 1, system monitoring center 2, multiple valving station 3, the wireless data transmission module 31 that described valving station 3 comprises PLC body module 32 and is connected with PLC body module 32, described PLC body module 32 output terminal is connected with A/D modular converter 33 and I/O module 35 respectively, described A/D modular converter 33 is connected with sensor group 34, described I/O module 35 is connected with intelligent drive device 36, and described intelligent drive device 36 is connected with valve 37; Described wireless data transmission module 31 one end is connected by RS485 interface mode with the communication module be embedded in PLC body module 32, and the other end is then connected with the server serial ports at system monitoring center 2 by standard RS232 interface.
As shown in Figure 2, be valve driving machine major loop and PLC outside terminal circuit diagram.Three-phase current motor M respectively by the break-make of A.C. contactor KMO and KMC drive spool suitable, rotate counterclockwise the unlatching or closedown that realize valve.
The FX2N-32MR that described PLC body module 32 selects Mitsubishi Electric Corporation to produce.Intelligent drive device is the SMC many rotary types electric device for valve introducing U.S. Limitorque technology, it can control by separate unit, also can centralized control, can execute-in-place, also remote controlled, decapacitation drives the outer simultaneously state of self can also being sent in the mode of standard signal of valve event to carry out state-detection for PLC.
Described A/D modular converter 33 selects the FX2N-4AD supporting with PLC body module 31, Qi You tetra-tunnel independently Differential Input passage.Each passage may be selected to be current mode (± 20mA) or the input of voltage-type (± 10VDC) signal.Temperature, pressure and flow sensor is loaded onto, to gather the duty of oil-gas pipeline in the appropriate location of each valving station pipeline or valve.Parameter signal through sensor become send after respectively autonomous channel each with FX2N-4AD be connected, be put in corresponding data register after AD conversion, for PLC timing reading.
Adopt wireless digital broadcasting station mode to carry out communication between computing machine and PLC, adopt interleaved code, receive rear retransmission technique, improve the antijamming capability of wireless telecommunications, guarantee the safe and reliable operation of valving station Wireless remote control.Data transmission module selects the MDS2710 digital transmission radio station of the U.S., and the data transmission that it can be between 2 provides the half duplex communication of all-transparent to connect.Its one end is connected by RS485 interface mode with the communication FX2n-485-BD be embedded in PLC, the other end is then connected with the serial ports of monitoring central server by the RS232 interface of standard, the data transmission that composition is accurate two-way and reception wireless communication networks, the maximum node number of network can reach 32.Radio station emissive power is 25W, adopts sending and receiving identical frequency process (235MHz), and main website erection omnidirectional antenna, after valving station sets up directed Yagi spark gap formula antenna, data transmission distance can reach more than 15Km, and in physical features flat country, communication distance can reach 20Km.In order to safety, except the lightning rod at astronomical cycle, the feeder line between antenna to radio station also installed lightning arrester additional.
This system is using PLC as remote control terminal, the remote wireless monitoring network of the master-slave mode point to multi--point using industry control PC as host computer.Slave computer PLC is arranged on each valving station, by unlatching or the closedown of PC control valve, and configures the utility appliance such as various sensor (temperature sensor, flow sensor and pressure transducer), composition data acquistion and control system.Host computer is installed on oil gas dispatching control center, with half-duplex polling mode with each valving station PLC communication, forms data acquisition analysis system with this.Wireless digital broadcasting station adopts transparent mode work, only plays data transmitting effect, and whole network data transmitting-receiving adopts same frequency.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. the valve long distance control system based on PLC, it is characterized in that: comprise radio transmitting tower (1), system monitoring center (2), multiple valving station (3), the wireless data transmission module (31) that described valving station (3) comprises PLC body module (32) and is connected with PLC body module (32), described PLC body module (32) output terminal is connected with A/D modular converter (33) and I/O module (35) respectively, described A/D modular converter (33) is connected with sensor group (34), described I/O module (35) is connected with intelligent drive device (36), described intelligent drive device (36) is connected with valve (37), described wireless data transmission module (31) one end is connected by RS485 interface mode with the communication module be embedded in PLC body module (32), and the other end is then connected with the server serial ports of system monitoring center (2) by standard RS232 interface.
2. according to a kind of valve long distance control system based on PLC according to claim 1, it is characterized in that: the FX2N-32MR that described PLC body module (32) selects Mitsubishi Electric Corporation to produce.
3. according to a kind of valve long distance control system based on PLC according to claim 1, it is characterized in that: described A/D modular converter (33) selects the FX2N-4AD supporting with PLC body module (31).
4. according to a kind of valve long distance control system based on PLC according to claim 1, it is characterized in that: described wireless data transmission module (31) selects the MDS2710 digital transmission radio station of the U.S..
5., according to a kind of valve long distance control system based on PLC according to claim 1, it is characterized in that: described in the communication module be embedded in PLC body module (32) be FX2n-485-BD.
6. according to a kind of valve long distance control system based on PLC according to claim 1, it is characterized in that: described sensor group (34) comprises temperature sensor, flow sensor and pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520442390.8U CN204695077U (en) | 2015-06-26 | 2015-06-26 | A kind of valve long distance control system based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520442390.8U CN204695077U (en) | 2015-06-26 | 2015-06-26 | A kind of valve long distance control system based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204695077U true CN204695077U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520442390.8U Expired - Fee Related CN204695077U (en) | 2015-06-26 | 2015-06-26 | A kind of valve long distance control system based on PLC |
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| CN (1) | CN204695077U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425693A (en) * | 2015-10-30 | 2016-03-23 | 浙江福瑞科流控机械有限公司 | Valve remote wireless monitoring system and method based on wireless intelligent terminal |
| CN112161106A (en) * | 2020-09-24 | 2021-01-01 | 常州工学院 | Control system and control method of valve |
| CN112305988A (en) * | 2020-11-02 | 2021-02-02 | 上海市基础工程集团有限公司 | Push pipe drag reduction grouting wireless remote control system |
| CN113759782A (en) * | 2021-09-08 | 2021-12-07 | 西安电子科技大学 | Multi-valve remote control system and remote control method based on Beidou short message |
-
2015
- 2015-06-26 CN CN201520442390.8U patent/CN204695077U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425693A (en) * | 2015-10-30 | 2016-03-23 | 浙江福瑞科流控机械有限公司 | Valve remote wireless monitoring system and method based on wireless intelligent terminal |
| CN112161106A (en) * | 2020-09-24 | 2021-01-01 | 常州工学院 | Control system and control method of valve |
| CN112305988A (en) * | 2020-11-02 | 2021-02-02 | 上海市基础工程集团有限公司 | Push pipe drag reduction grouting wireless remote control system |
| CN113759782A (en) * | 2021-09-08 | 2021-12-07 | 西安电子科技大学 | Multi-valve remote control system and remote control method based on Beidou short message |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151007 Termination date: 20160626 |