CN110764483A - Valve wireless measurement and control method and system based on cloud SCADA - Google Patents
Valve wireless measurement and control method and system based on cloud SCADA Download PDFInfo
- Publication number
- CN110764483A CN110764483A CN201911198156.4A CN201911198156A CN110764483A CN 110764483 A CN110764483 A CN 110764483A CN 201911198156 A CN201911198156 A CN 201911198156A CN 110764483 A CN110764483 A CN 110764483A
- Authority
- CN
- China
- Prior art keywords
- valve
- information
- scada
- data
- base station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 title claims abstract description 25
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims abstract description 123
- 238000012544 monitoring process Methods 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims description 34
- 238000004891 communication Methods 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 12
- 230000003044 adaptive effect Effects 0.000 claims description 8
- 238000004088 simulation Methods 0.000 claims description 6
- 238000004886 process control Methods 0.000 abstract description 2
- 230000001131 transforming effect Effects 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 229940126535 potassium competitive acid blocker Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/4186—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication by protocol, e.g. MAP, TOP
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The invention provides a valve wireless measurement and control method and system based on cloud SCADA, and belongs to the technical field of process control. For monitoring and controlling an industrial valve having an actuator, comprising: can with actuating mechanism electric connection's of valve LORA monitoring control device, LORA basic station, SCADA high in the clouds processing center and user terminal. The method and the system for transforming the control valve have the advantages that the method and the system are universal and have the advantages of being low in cost, long in distance, low in power consumption, multi-node and low in cost, the operation cost can be reduced, and safety risks can be reduced.
Description
Technical Field
The invention belongs to the technical field of process control, and particularly relates to a valve wireless measurement and control method and a measurement and control system based on a cloud SCADA.
Background
The industrial valve has the functions of controlling the on-off of fluid, adjusting the pressure of the fluid, changing the flowing direction of the fluid and the like in a pipeline system, and an actuating mechanism of the control valve has pneumatic, electric and other modes. Traditionally, the industrial valves are mostly controlled by buses, and form a centralized control mode such as a DCS control system, a PLC control system, an FCS control system and the like by using wired transmission. However, the bus control method not only needs to purchase auxiliary facilities such as cables, line racks, control cabinets and I/O with a large amount of capital, but also has the disadvantages of troublesome line arrangement, long consumed time, more labor, strong professional property and complex maintenance. In some special places, such as high-temperature and high-corrosion places, the cable is exposed for a long time, and the cable is easy to age, so that the valve is in an out-of-control state.
The internet of things technology which develops rapidly provides convenience for solving the problem, the electric actuator networking measurement and control system provided in the prior art comprises a data transmission circuit, a cloud server and a monitoring computer, UART (universal asynchronous receiver/transmitter) of a UART interface and an electric actuator main control unit is adopted to carry out serial port communication, data acquisition and data interaction of equipment are completed through a TTL (transistor-transistor logic) level mode and an electric actuator main control board, although wireless control over the electric actuator is realized in the mode, the UART interface has large limitation, a large number of valve actuators do not have the UART interface, and if the UART interface needs to be added, high reconstruction cost needs to be invested.
Disclosure of Invention
In view of the above, the invention provides a wireless valve measurement and control system based on a cloud SCADA, so as to solve the technical problems of poor universality and high modification cost in the process of realizing data interaction by using a UART interface in the prior art.
The invention further provides a valve wireless measurement and control method based on the cloud SCADA.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a wireless system of observing and controling of valve based on high in clouds SCADA for monitoring and control have actuating mechanism's industrial valve, include: the system comprises an LORA monitoring control device, an LORA base station, an SCADA cloud processing center and a user terminal, wherein the LORA monitoring control device can be electrically connected with an actuating mechanism of a valve;
the LORA monitoring control device is used for acquiring a working state signal reflecting the working condition of the valve from an executing mechanism of the valve, converting the working state signal into valve working state information based on a Modbus protocol, and sending the valve working state information to the LORA base station in a wireless mode, and is also used for receiving adaptive valve control information based on the Modbus protocol and sent by the LORA base station in a broadcasting mode, converting the valve control information into an executing signal, and sending the executing signal to the executing mechanism of the valve so as to enable the executing mechanism to control the valve to work;
the LORA base station is used for receiving the valve working state information in a wireless mode and transmitting the valve working state information to an SCADA cloud processing center, and the LORA base station is also used for receiving the valve control information transmitted by the SCADA cloud processing center and transmitting the valve control information in a broadcasting mode;
the SCADA cloud processing center is communicated with the LORA base station through a network and is used for receiving the working state information of the valve, analyzing the received working state information of the valve into valve state data and storing the valve state data; the SCADA cloud processing center is further used for receiving valve control instruction data sent by the user terminal, converting the received valve control instruction data into valve control information based on a Modbus protocol, and transmitting the valve control information to the LORA base station;
the user terminal is connected with the SCADA cloud processing center through a network, the user terminal is used for acquiring stored valve state data from the SCADA cloud processing center so as to be referred by monitoring personnel using the user terminal, and the user terminal is further used for responding to operation made by the monitoring personnel according to the valve state data, generating corresponding valve control instruction data and providing the valve control instruction data for the SCADA cloud processing center.
Preferably, the LORA monitoring control device includes: the signal conversion unit is electrically connected with the actuating mechanism of the valve, and is used for acquiring a working state signal reflecting the working condition of the valve from the actuating mechanism of the valve, converting the working state signal into valve working state information based on a Modbus protocol and outputting the valve working state information; the communication unit is electrically connected with the signal conversion unit, is used for receiving the valve working state information output by the signal conversion unit and sending the information to the LORA base station in a wireless mode, and is also used for receiving adaptive valve control information based on a Modbus protocol and sent by the LORA base station in a broadcasting mode and outputting the valve control information.
Preferably, the LORA base station communicates with the SCADA cloud processing center based on a GPRS communication protocol or a 2G/3G/4G/5G/6G protocol.
Preferably, the SCADA cloud processing center includes a valve monitoring module and a valve control module, and the valve monitoring module is configured to receive the valve operating state information transmitted by the LORA base station, and analyze and store the received valve operating state information into valve state data; and the valve control module is used for receiving the valve control instruction data sent by the user terminal, converting the valve control information of the received valve control instruction data based on a Modbus protocol, and transmitting the valve control information to the LORA base station.
Preferably, the valve monitoring module includes a data receiving unit, a first data conversion unit and a storage unit, the data receiving unit communicates with the LORA base station through a network, the data receiving unit is configured to receive valve operating state information transmitted by the LORA base station, the first data conversion unit is configured to analyze the received valve operating state information into valve state data, and the storage unit is configured to store the valve state data.
Preferably, the valve control module includes an instruction receiving module, a second data conversion unit and an information output module, the instruction receiving module communicates with the user terminal through a network, the instruction receiving module is configured to respond to an operation performed by a monitoring person according to valve state data and generate corresponding valve control instruction data, the second data conversion unit is configured to convert the received valve control instruction data into valve control information based on a Modbus protocol, the information output module communicates with the LORA base station through the network, and the information output module is configured to transmit the valve control information to the LORA base station in a wireless manner.
Preferably, the valve control module further comprises a fault judgment unit, a reset information acquisition unit and a reset information output unit, wherein the fault judgment unit is used for comparing the received valve working state information with prestored fault state information, judging whether the current valve is in a fault state, and outputting a judgment result; the reset information acquisition unit is used for acquiring the valve state data at the last moment from the storage unit according to the received judgment result to be used as valve reset instruction information; the reset information output unit is in communication with the LORA base station through a network, and is configured to wirelessly transmit the received valve reset instruction data to the LORA base station.
A wireless valve measurement and control method based on cloud SCADA comprises a monitoring process of a valve working state and a control process of a valve, wherein the monitoring process of the valve working state comprises the following steps:
a1. acquiring a working simulation signal reflecting the working condition of the valve;
a2. converting the obtained working simulation signal into valve working state information capable of being transmitted in a wireless mode according to a Modbus protocol, forwarding the valve working state information through an LORA base station according to an LORA protocol, and transmitting the valve working state information to an SCADA cloud server;
a3. based on an SCADA cloud server, converting the valve working state information into valve state data, and storing the valve state data;
a4. acquiring valve state data stored in the SCADA cloud server for reference of monitoring personnel;
the control process for the valve comprises the following steps:
b1. responding to input operation performed by monitoring personnel after referring to the valve state data, and generating corresponding valve control instruction data;
b2. sending the valve control instruction data to an SCADA cloud server through a network; b3. based on an SCADA cloud server, converting the valve control instruction data into valve control information according to a Modbus protocol, outputting the valve control information to an LORA base station in a wireless mode according to an LORA protocol, and sending the valve control information in a broadcast mode through the LORA base station;
b4. and receiving the adapted valve control information, converting the valve control information into an execution signal, and providing the execution signal to an execution mechanism of the valve so that the execution mechanism controls the valve to work.
Preferably, the control process of the valve further comprises the steps of:
c1. acquiring the working state information of the valve;
c2. comparing the working state information of the valve with preset fault state information of the valve to judge whether the valve is in a fault state;
c3. when the valve is judged to be in a fault state, valve state data at the last moment stored in an SCADA cloud server is obtained, and the valve state data is used as valve reset control information;
c4. according to the LORA protocol, valve reset control information is wirelessly output to an LORA base station and is sent out in a broadcast mode through the LORA base station;
c5. and receiving the adaptive valve reset control information, converting the valve reset control information into a reset execution signal, and providing the reset execution signal to an execution mechanism of the valve so that the execution mechanism controls the valve to recover the state before the fault.
Preferably, the working analog signal is a voltage signal or a current signal; the execution signal is a voltage signal or a current signal, and the reset execution signal is a voltage signal or a current signal.
By adopting the technical scheme, the invention has the beneficial effects that: the method and the system for transforming the control valve have the advantages that the method and the system are universal and have the advantages of being low in cost, long in distance, low in power consumption, multi-node and low in cost, the operation cost can be reduced, and safety risks can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of a valve wireless measurement and control system based on a cloud SCADA.
Fig. 2 is a circuit connection diagram of the LORA monitor and control device.
Fig. 3 is a functional block diagram of a SCADA cloud processing center.
Fig. 4 is a working logic diagram of a valve wireless measurement and control method based on cloud SCADA.
In the figure: the system comprises a wireless valve measurement and control system 10 based on a cloud SCADA (supervisory control and data acquisition), an execution mechanism 11, an LORA (remote monitoring and control System) monitoring control device 100, a signal conversion unit 110, a valve state information input terminal 111, a valve control information output terminal 112, a first signal interaction terminal 113, a power input terminal 114, a second signal interaction terminal 121, a power output terminal 122, a communication unit 120, a power supply device 130, an LORA base station 200, an SCADA cloud processing center 300, a valve monitoring module 310, a data receiving unit 311, a first data conversion unit 312, a storage unit 313, a valve control module 320, an instruction receiving module 321, a second data conversion unit 322, an information output module 323, a fault judgment unit 324, a reset information acquisition unit 325, a reset information output unit 326 and a user terminal 400.
Detailed Description
Referring to fig. 1, in an embodiment of the present invention, a wireless measurement and control system 10 for monitoring and controlling an industrial valve having an actuator 11 based on a cloud SCADA is provided, including: the system comprises an LORA monitoring control device 100, an LORA base station 200, an SCADA cloud processing center 300 and a user terminal 400 which can be electrically connected with an actuating mechanism 11 of a valve.
The LORA monitoring and controlling device 100 is configured to obtain a working status signal reflecting a working condition of the valve from the executing mechanism 11 of the valve, convert the working status signal into valve working status information based on a Modbus protocol, and send the valve working status information to the LORA base station 200 in a wireless manner. The LORA monitoring and controlling device 100 is further configured to receive adapted valve control information based on the Modbus protocol and sent by the LORA base station 200 in a broadcast manner, convert the valve control information into an execution signal, and transmit the execution signal to the actuator 11 of the valve, so that the actuator 11 controls the operation of the valve.
The LORA base station 200 is configured to receive the valve operating state information in a wireless manner, and transmit the valve operating state information to the SCADA cloud processing center 300, and the LORA base station 200 is further configured to receive the valve control information transmitted by the SCADA cloud processing center 300, and transmit the valve control information in a broadcast manner.
The SCADA cloud processing center 300 is in communication with the LORA base station 200 through a network, and the SCADA cloud processing center 300 is used for receiving the valve working state information, analyzing the received valve working state information into valve state data and storing the valve state data. The SCADA cloud processing center 300 is further configured to receive valve control instruction data sent by the user terminal 400, convert the valve control information into valve control information based on a Modbus protocol, and transmit the valve control information to the LORA base station 200.
The user terminal 400 is connected to the SCADA cloud processing center 300 through a network, the user terminal 400 is configured to obtain stored valve state data from the SCADA cloud processing center 300 for reference by a monitoring person using the user terminal 400, and the user terminal 400 is further configured to respond to an operation performed by the monitoring person according to the valve state data, generate corresponding valve control instruction data, and provide the valve control instruction data to the SCADA cloud processing center 300.
On one hand, for example, the LORA monitoring and controlling device 100 is electrically connected to the actuator 11 of the valve, and a working state signal from the actuator 11 of the valve, which can reflect the working condition of the valve, is obtained by the LORA monitoring and controlling device 100, where the working state signal may be a voltage signal or a current signal, and for example, the working state signal is one of a voltage signal of 1 to 5V, a voltage signal of-10 to 10V, a current signal of 4 to 20mA, or a current signal of 0 to 20 mA. After acquiring the working status signal, the LORA monitoring and controlling device 100 converts the working status signal according to the Modbus protocol into working status information capable of being wirelessly transmitted, where the working status information at least includes LORA frame code information, valve address information, target data information, and check code information, and may further include basic information corresponding to the valve, such as valve range, accuracy, and the like. The working state information is wirelessly output by the LORA monitoring and controlling device 100, forwarded by the LORA base station 200, and wirelessly transmitted to the SCADA cloud processing center 300. The SCADA cloud processing center 300 receives the working state information, analyzes the working state information according to a Modbus protocol, reads target data information in the working state information, converts the target data information into valve state data, and stores the valve state data. The user terminal 400 accesses the SCADA cloud processing center 300 through the internet by a valve monitoring person, and acquires the valve state data for reference by the monitoring person using the user terminal 400.
On the other hand, the valve monitoring personnel judge that the working state of a certain valve needs to be adjusted according to the acquired valve state data, at this moment, the valve monitoring personnel inputs and forms corresponding valve control instruction data by the user terminal 400, and the valve control instruction data is transmitted to the SCADA cloud processing center 300 through the network. The SCADA cloud processing center 300 acquires the valve control instruction data, converts the valve control instruction data according to a Modbus protocol to form valve control information capable of being wirelessly transmitted, and the valve control information at least comprises LORA frame code information, valve address information, target data information and check code information so as to correspond to the LORA monitoring and controlling device 100 for adaptive identification. The SCADA cloud processing center 300 transmits the valve control information to the LORA base station 200 in a wireless manner, and the LORA base station 200 outputs the valve control information in a broadcast manner. The corresponding LORA monitoring and controlling device 100 identifies and receives the valve address information according to the valve address information, and converts the valve control information into an execution signal, where the execution signal may be a voltage signal or a current signal, and the working state signal is, for example, one of a voltage signal of 1 to 5V, a voltage signal of-10 to 10V, a current signal of 4 to 20mA, or a current signal of 0 to 20 mA. The LORA monitoring and controlling device 100 transmits the execution signal to the actuator 11 of the valve, so that the actuator 11 controls the valve to operate, and the valve is in the operation state expected by the valve monitoring personnel.
Further, the LORA monitoring and control device 100 includes: the signal conversion unit 110 is electrically connected to the valve actuator 11, and is configured to obtain a working state signal reflecting a working condition of the valve from the valve actuator 11, convert the working state signal into valve working state information based on a Modbus protocol, and output the valve working state information. The signal conversion unit 110 is further configured to receive the Modbus protocol-based valve control information transmitted by the communication unit 120, convert the valve control information into an execution signal, and transmit the execution signal to an actuator of the valve. The communication unit 120 is electrically connected to the signal conversion unit 110, the communication unit 120 is configured to receive the valve operating state information output by the signal conversion unit 110 and send the valve operating state information to the LORA base station 200 in a wireless manner, and the communication unit 120 is further configured to receive adapted valve control information based on the Modbus protocol and sent by the LORA base station 200 in a broadcast manner and output the valve control information.
Specifically, the signal conversion unit 110 has a valve state information input terminal 111 and a valve control information output terminal 112, the valve state information input terminal 111 conducts a feedback loop of the actuator 11, and the valve control information output terminal 112 conducts a control loop of the actuator 11. On the other hand, the valve operating state signal fed back by the feedback loop of the actuator 11 is input to the signal conversion unit 110 through the valve state information input terminal 111, and is converted into valve state information according to the Modbus protocol. On the other hand, the valve control information based on the Modbus protocol issued by the SCADA cloud processing center 300 is input from the valve control information output terminal 112, converted into a current or voltage signal executable by the execution mechanism 11, and input to the execution mechanism 11 to control the valve operation.
Specifically, the signal conversion unit 110 has a first signal interaction terminal 113, the communication unit 120 has a second signal interaction terminal 121, and the second signal interaction terminal 121 is electrically connected to the first signal interaction terminal 113. For example, the second signal interaction terminal 121 and the first signal interaction terminal 113 are connected through an RS485 communication cable to realize data interaction between the signal conversion unit 110 and the communication unit 120.
Specifically, the LORA monitoring and controlling device 100 further includes a power supply device 130 for supplying power to the communication unit 120, and the power supply device 130 turns on the communication unit 120. The power supply device 130 may be a battery with an output of 3.6V, or may be an external 24V power supply to supply power to the communication unit 120.
Specifically, the communication unit 120 has a power output terminal 122, the signal conversion unit 110 has a power input terminal 114, and the power input terminal 114 turns on the power output terminal 122 to provide the signal conversion unit 110 with power for keeping its normal operation.
The following illustrates a specific embodiment of the present invention by way of example. For example, the signal conversion unit 110 may be a Modbus analog converter, which can convert the current or voltage signal into data information satisfying the Modbus protocol, and can also convert the data information satisfying the Modbus protocol into the current or voltage signal. The communication unit 120 may be a LORA wireless module having LORA wireless communication function, and the LORA wireless module has the features of long distance, low power consumption, multiple nodes, and low cost.
Referring to fig. 2, for example, the electric butterfly valve is covered with a meter, the input and output signals of the valve are all 4-20mA current signals, and the I + and I-terminals are the control signal input of the valve, i.e. the control loop; the O + and O-terminal is the feedback signal output of the valve, namely a feedback loop; l and N are power supply circuits of the valve.
The LORA monitoring and controlling device 100 draws out a six-core cable, which is a power line (a red line is connected to the positive pole of the external power supply, and a black line is connected to the negative pole of the external power supply), wherein the red line is connected to L, and the black line is connected to N (not shown in the drawing); a valve status information input terminal 111 (for easy understanding and distinction, including a brown line and a white line), wherein the brown line is connected to the O + terminal of the valve, and the white line is connected to the O-terminal of the valve, so as to realize the signal interaction between the execution signal converted by the LORA monitoring and control device 100 and the execution mechanism 11; and a valve control information output terminal 112 (including a green line and a yellow line for easy understanding and distinction), wherein the green line is connected to the I + terminal of the valve, and the yellow line is connected to the I-terminal of the valve, so as to realize data interaction between the operating state signal of the valve and the LORA monitoring and controlling device 100.
IN the LORA monitoring and controlling device 100, the signal conversion unit 110 has two analog signal input terminals ⑦ and ⑧, i.e., a valve state information input terminal 111, two connection terminals IN2 and IN1, a GND common ground terminal ⑤, and a control signal output terminal ⑥, i.e., a valve control information output terminal 112, and the connection method of the signal conversion unit 110 is that a brown line is connected to ⑧, a green line is connected to ⑥, and white and yellow lines are connected to ⑤.
The RS485A/B terminal of the signal conversion unit 110, i.e. the first signal interaction terminal 113, is connected with the RS485 +/-terminal of the PCBA board of the communication unit 120, i.e. the second signal interaction terminal 121, the power supply device 130 is connected with the PCBA board power terminal of the communication unit 120, and the battery pack plug is inserted into the PCAB board power port to provide power.
For example, the working process of the cloud SCADA-based valve wireless measurement and control system 400 is as follows: for example, when the SCADA cloud processing center 300 sends a command for reading status data, 010300000001840a (the command is an inquiry formula and the command is fixed), a valve position feedback signal return value is 0103020B E0 BE FC, where 0B E0 is valve position feedback data, and the analysis process is as follows, the value of the data after being converted into decimal data by a Modbus analog converter is y =3040, and a formula I = y × K is used, and the value of K in the formula is defined by valve manufacturers, and the values of K in different manufacturers are different. For example, taking K to 20/4095, current value I is 14.84 mA. Since the valve range is 0-100 and the output current is 4-20mA, the ratio is calculated to be 6.25 by 100/(20-4). The numerical value of the valve count table 67 was matched with 14.84 × 6.25= 67.75. And displaying the opening degree of the valve to be 67 in the cloud SCADA after analysis.
For example, when the SCADA cloud processing center 300 issues a command to control the valve full-closing command to be 01060078000009D3, the LORA adaptation unit 100 outputs a 4mA current signal to the valve actuator, and then the valve executes a closing operation. When the lower open command is 01060078271013EF, the LORA adaptation unit 100 outputs a 20mA current signal to the actuator 11 of the valve, and the valve performs an opening operation. For example, if the half-open command is 0106007813880485, the LORA wireless adapter outputs a 12mA current signal, and so on. The valve comprises a backflow preventer, a pressure reducing valve, a pressure relief valve, a water replenishing valve, an electric valve, a flow control valve and the like. The LORA adaptation unit 100 meets explosion-proof requirements, meets GB38361-2010 explosive environment equipment general requirements and explosion-proof standards, and can be applied to explosion-proof areas such as petrochemical industry and the like.
Further, the LORA base station 200 has a wireless communication device, and the wireless communication device is configured based on a GPRS communication protocol or a 2G/3G/4G/5G/6G protocol, and preferably configured based on a 4G/5G/6G protocol, so as to implement data interaction with the SCADA cloud processing center 300, improve a data transmission rate, and enhance stability of data transmission.
Referring to fig. 3, the SCADA cloud processing center 300 further includes a valve monitoring module 310 and a valve control module 320, where the valve monitoring module 310 is configured to receive the valve operating state information transmitted by the LORA base station 200, and analyze and store the received valve operating state information into valve state data. The valve control module 320 is configured to receive valve control instruction data sent by the user terminal 400, convert the received valve control instruction data into valve control information based on a Modbus protocol, and transmit the valve control information to the LORA base station 200.
Further, the valve monitoring module 310 includes a data receiving unit 311, a first data converting unit 312 and a storage unit 313, the data receiving unit 311 communicates with the LORA base station 200 through a network, the data receiving unit 312 is configured to receive the valve operating state information transmitted by the LORA base station 200, the first data converting unit 312 is configured to analyze the received valve operating state information into valve state data, and the storage unit 313 is configured to store the valve state data.
Further, the valve control module 320 includes an instruction receiving module 321, a second data converting unit 322, and an information outputting module 323, where the instruction receiving module 321 communicates with the user terminal 400 through a network, the instruction receiving module 321 is configured to respond to an operation performed by a monitoring person according to valve state data and generate corresponding valve control instruction data, the second data converting unit 322 is configured to convert the received valve control instruction data into valve control information based on a Modbus protocol, the information outputting module 323 communicates with the LORA base station 200 through a network, and the information outputting module 323 is configured to transmit the valve control information to the LORA base station 200 in a wireless manner.
Further, the valve control module 320 further includes a fault determining unit 324, a reset information obtaining unit 325, and a reset information output unit 326, where the fault determining unit 324 is configured to compare the received valve operating state information with pre-stored fault state information, determine whether the current valve is in a fault state, and output a determination result. The reset information obtaining unit 325 is configured to obtain, as the valve reset instruction information, the valve state data at the previous time from the storage unit 313 according to the received determination result. The reset information output unit 326 communicates with the LORA base station 200 through a network, and the reset information output unit 326 is configured to wirelessly transmit the received valve reset instruction data to the LORA base station 200.
Referring to fig. 4, that is, the data receiving unit 311 continuously receives the valve operating state information transmitted by the LORA base station 200, and firstly passes through the fault determining unit 324 to compare with the valve fault information prestored in the fault determining unit 324, and if the valve operating state information is not one of the prestored valve fault information, that is, if the valve operating state information is determined to be feedback information when the valve is normally operated, the valve operating state information is input to the first data converting unit 312. The first data conversion unit 312 parses the received valve operating state information into valve state data, and stores the valve state data in the storage unit 313. If the valve operating state information is one of the pre-stored valve failure information, that is, if the valve operating state information is feedback information when the valve operating state information is determined to be a valve failure, the input of the valve operating state information to the first data conversion unit 312 is stopped, and the reset information acquisition unit 325 acquires the most recent (i.e., last time) valve state data of the valve stored in the storage unit 313 as valve reset instruction information. The valve reset command information is wirelessly transmitted to the LORA base station 200 through the reset information output unit 326, and is output in a broadcast form through the LORA base station 200. When the fault of the valve is removed and the valve is recovered to normal, the LORA monitoring and controlling device 100 receives the valve reset instruction information, converts the valve reset instruction information into a reset instruction signal, and inputs the reset instruction signal to the valve executing mechanism 11, so that the valve is recovered to the working state before the fault.
In a specific embodiment of the present invention, a valve wireless measurement and control method based on a cloud SCADA is further provided, including a monitoring process of a valve operating state and a control process of a valve, where the monitoring process of the valve operating state includes the following steps:
a1. acquiring a working simulation signal reflecting the working condition of the valve;
a2. converting the obtained working simulation signal into valve working state information capable of being transmitted in a wireless mode according to a Modbus protocol, forwarding the valve working state information through an LORA base station according to an LORA protocol, and transmitting the valve working state information to an SCADA cloud server;
a3. based on an SCADA cloud server, converting the valve working state information into valve state data, and storing the valve state data;
a4. acquiring valve state data stored in the SCADA cloud server for reference of monitoring personnel;
the control process for the valve comprises the following steps:
b1. responding to input operation performed by monitoring personnel after referring to the valve state data, and generating corresponding valve control instruction data;
b2. sending the valve control instruction data to an SCADA cloud server through a network;
b3. based on an SCADA cloud server, converting the valve control instruction data into valve control information according to a Modbus protocol, outputting the valve control information to an LORA base station in a wireless mode according to an LORA protocol, and sending the valve control information in a broadcast mode through the LORA base station;
b4. and receiving the adapted valve control information, converting the valve control information into an execution signal, and providing the execution signal to an execution mechanism of the valve so that the execution mechanism controls the valve to work.
Further, the control process for the valve further comprises the following steps:
c1. acquiring the working state information of the valve;
c2. comparing the working state information of the valve with preset fault state information of the valve to judge whether the valve is in a fault state;
c3. when the valve is judged to be in a fault state, valve state data at the last moment stored in an SCADA cloud server is obtained, and the valve state data is used as valve reset control information;
c4. according to the LORA protocol, valve reset control information is wirelessly output to an LORA base station and is sent out in a broadcast mode through the LORA base station;
c5. and receiving the adaptive valve reset control information, converting the valve reset control information into a reset execution signal, and providing the reset execution signal to an execution mechanism of the valve so that the execution mechanism controls the valve to recover the state before the fault.
Further, the working analog signal is a voltage signal or a current signal; the execution signal is a voltage signal or a current signal, and the reset execution signal is a voltage signal or a current signal.
It should be noted that the valve includes at least one of an electric valve, a pneumatic valve and a hydraulic valve, and of course, the present invention is not limited to wireless measurement and control of the control valve, and can also be applied to the field of motor control and the like.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a wireless system of observing and controling of valve based on high in clouds SCADA for monitoring and control have actuating mechanism's industrial valve, its characterized in that includes: the system comprises an LORA monitoring control device, an LORA base station, an SCADA cloud processing center and a user terminal, wherein the LORA monitoring control device can be electrically connected with an actuating mechanism of a valve;
the LORA monitoring control device is used for acquiring a working state signal reflecting the working condition of the valve from an executing mechanism of the valve, converting the working state signal into valve working state information based on a Modbus protocol, and sending the valve working state information to the LORA base station in a wireless mode, and is also used for receiving adaptive valve control information based on the Modbus protocol and sent by the LORA base station in a broadcasting mode, converting the valve control information into an executing signal, and sending the executing signal to the executing mechanism of the valve so as to enable the executing mechanism to control the valve to work;
the LORA base station is used for receiving the valve working state information in a wireless mode and transmitting the valve working state information to an SCADA cloud processing center, and the LORA base station is also used for receiving the valve control information transmitted by the SCADA cloud processing center and transmitting the valve control information in a broadcasting mode;
the SCADA cloud processing center is communicated with the LORA base station through a network and is used for receiving valve working state information, analyzing the received valve working state information into valve state data and storing the valve state data; the SCADA cloud processing center is further used for receiving valve control instruction data sent by the user terminal, converting the received valve control instruction data into valve control information based on a Modbus protocol, and transmitting the valve control information to the LORA base station;
the user terminal is connected with the SCADA cloud processing center through a network, the user terminal is used for acquiring stored valve state data from the SCADA cloud processing center so as to be referred by monitoring personnel using the user terminal, and the user terminal is further used for responding to operation made by the monitoring personnel according to the valve state data, generating corresponding valve control instruction data and providing the valve control instruction data for the SCADA cloud processing center.
2. A cloud SCADA based valve wireless measurement and control system according to claim 1, wherein the LORA monitoring and control device comprises: a signal conversion unit and a communication unit;
the signal conversion unit is electrically connected with the actuating mechanism of the valve, and is used for acquiring a working state signal reflecting the working condition of the valve from the valve actuating mechanism, converting the working state signal into valve working state information capable of being wirelessly transmitted based on a Modbus protocol and outputting the valve working state information;
the communication unit is electrically connected with the signal conversion unit, is used for receiving the valve working state information output by the signal conversion unit and sending the information to the LORA base station in a wireless mode, and is also used for receiving adaptive valve control information based on a Modbus protocol and sent by the LORA base station in a broadcasting mode and outputting the valve control information.
3. A cloud SCADA based valve wireless measurement and control system according to claim 1 or 2, wherein the LORA base station communicates with the SCADA cloud processing center based on GPRS communication protocol or 2G/3G/4G/5G/6G protocol.
4. The cloud-based SCADA wireless measurement and control system of claim 3, wherein the SCADA cloud processing center comprises a valve monitoring module and a valve control module, the valve monitoring module is configured to receive valve operating status information transmitted by the LORA base station, and parse the received valve operating status information into valve status data and store the valve status data; the valve control module is used for receiving the valve control instruction data sent by the user terminal, converting the received valve control instruction data into valve control information based on a Modbus protocol, and transmitting the valve control information to the LORA base station.
5. The cloud-based SCADA valve wireless measurement and control system of claim 4, wherein the valve monitoring module comprises a data receiving unit, a first data conversion unit, and a storage unit, the data receiving unit communicates with the LORA base station through a network, the data receiving unit is configured to receive valve operating state information transmitted by the LORA base station, the first data conversion unit is configured to analyze the received valve operating state information into valve state data, and the storage unit is configured to store the valve state data.
6. The cloud-based SCADA valve wireless measurement and control system of claim 5, wherein the valve control module comprises an instruction receiving module, a second data conversion unit and an information output module, the instruction receiving module is in communication with the user terminal through a network, the instruction receiving module is used for responding to operations made by monitoring personnel according to valve state data and generating corresponding valve control instruction data, the second data conversion unit is used for converting the received valve control instruction data into valve control information based on a Modbus protocol, the information output module is in communication with the LORA base station through the network, and the information output module is used for transmitting the valve control information to the LORA base station in a wireless manner.
7. The cloud-based SCADA wireless valve measurement and control system of claim 6, wherein the valve control module further comprises a fault determination unit, a reset information acquisition unit, and a reset information output unit, wherein the fault determination unit is configured to compare the received valve operating state information with pre-stored fault state information, determine whether the current valve is in a fault state, and output a determination result; the reset information acquisition unit is used for acquiring the valve state data at the last moment from the storage unit according to the received judgment result to be used as valve reset instruction information; the reset information output unit is in communication with the LORA base station through a network, and is configured to wirelessly transmit the received valve reset instruction data to the LORA base station.
8. A wireless valve measurement and control method based on cloud SCADA comprises a monitoring process of a valve working state and a control process of a valve, and is characterized in that,
the monitoring process of the working state of the valve comprises the following steps:
a1. acquiring a working simulation signal reflecting the working condition of the valve;
a2. converting the obtained work simulation signal into valve work state information according to a Modbus protocol, forwarding the valve work state information through an LORA base station according to an LORA protocol, and transmitting the valve work state information to an SCADA cloud server;
a3. based on an SCADA cloud server, converting the valve working state information into valve state data, and storing the valve state data;
a4. acquiring valve state data stored in the SCADA cloud server for reference of monitoring personnel;
the control process for the valve comprises the following steps:
b1. responding to input operation performed by monitoring personnel after referring to the valve state data, and generating corresponding valve control instruction data;
b2. sending the valve control instruction data to an SCADA cloud server through a network;
b3. based on an SCADA cloud server, converting the valve control instruction data into valve control information capable of being transmitted in a wireless mode according to a Modbus protocol, outputting the valve control information to an LORA base station in a wireless mode according to an LORA protocol, and sending the valve control information in a broadcasting mode through the LORA base station;
b4. and receiving the adapted valve control information, converting the valve control information into an execution signal, and providing the execution signal to an execution mechanism of the valve so that the execution mechanism controls the valve to work.
9. The cloud-based SCADA valve wireless measurement and control method of claim 8, wherein the valve control process further comprises the steps of:
c1. acquiring the working state information of the valve;
c2. comparing the working state information of the valve with preset fault state information of the valve to judge whether the valve is in a fault state;
c3. when the valve is judged to be in a fault state, valve state data at the last moment stored in an SCADA cloud server is obtained, and the valve state data is used as valve reset control information;
c4. according to the LORA protocol, valve reset control information is wirelessly output to an LORA base station and is sent out in a broadcast mode through the LORA base station;
c5. and receiving the adaptive valve reset control information, converting the valve reset control information into a reset execution signal, and providing the reset execution signal to an execution mechanism of the valve so that the execution mechanism controls the valve to recover the state before the fault.
10. The cloud-based SCADA valve wireless measurement and control method of claim 9, wherein the working analog signal is a voltage signal or a current signal; the execution signal is a voltage signal or a current signal, and the reset execution signal is a voltage signal or a current signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198156.4A CN110764483A (en) | 2019-11-29 | 2019-11-29 | Valve wireless measurement and control method and system based on cloud SCADA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198156.4A CN110764483A (en) | 2019-11-29 | 2019-11-29 | Valve wireless measurement and control method and system based on cloud SCADA |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110764483A true CN110764483A (en) | 2020-02-07 |
Family
ID=69340398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911198156.4A Pending CN110764483A (en) | 2019-11-29 | 2019-11-29 | Valve wireless measurement and control method and system based on cloud SCADA |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110764483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758704A (en) * | 2020-06-05 | 2021-12-07 | 国核电站运行服务技术有限公司 | Intelligent valve diagnosis monitoring system, method, terminal and intelligent terminal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937230A (en) * | 2009-07-01 | 2011-01-05 | 陈礼宝 | Remote service system and remote service method for automatic revolution door |
| CN104049931A (en) * | 2014-06-17 | 2014-09-17 | 佛山市顺德区美的电热电器制造有限公司 | Reset displaying device, reset displaying method and cooking heating equipment |
| CN105570512A (en) * | 2016-02-02 | 2016-05-11 | 扬州电力设备修造厂有限公司 | Intelligent valve remote control system and working method thereof |
| CN107590987A (en) * | 2017-10-23 | 2018-01-16 | 天津云拓网络科技有限公司 | A kind of long-distance meter-reading system based on low-power consumption Internet of Things |
| CN208969484U (en) * | 2018-12-25 | 2019-06-11 | 天津科技大学 | A kind of Electric Actuator networking TT&C system |
| CN110018926A (en) * | 2018-11-22 | 2019-07-16 | 阿里巴巴集团控股有限公司 | Fault recovery method, device, electronic equipment and computer readable storage medium |
| CN110349397A (en) * | 2019-08-06 | 2019-10-18 | 陕西科技大学 | A kind of rural area water meter intelligent meter data recording system based on LoRa Yu the 4G network integration |
| CN210776306U (en) * | 2019-11-29 | 2020-06-16 | 宁夏锐波网络有限公司 | Wireless valve measurement and control system based on cloud SCADA |
-
2019
- 2019-11-29 CN CN201911198156.4A patent/CN110764483A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937230A (en) * | 2009-07-01 | 2011-01-05 | 陈礼宝 | Remote service system and remote service method for automatic revolution door |
| CN104049931A (en) * | 2014-06-17 | 2014-09-17 | 佛山市顺德区美的电热电器制造有限公司 | Reset displaying device, reset displaying method and cooking heating equipment |
| CN105570512A (en) * | 2016-02-02 | 2016-05-11 | 扬州电力设备修造厂有限公司 | Intelligent valve remote control system and working method thereof |
| CN107590987A (en) * | 2017-10-23 | 2018-01-16 | 天津云拓网络科技有限公司 | A kind of long-distance meter-reading system based on low-power consumption Internet of Things |
| CN110018926A (en) * | 2018-11-22 | 2019-07-16 | 阿里巴巴集团控股有限公司 | Fault recovery method, device, electronic equipment and computer readable storage medium |
| CN208969484U (en) * | 2018-12-25 | 2019-06-11 | 天津科技大学 | A kind of Electric Actuator networking TT&C system |
| CN110349397A (en) * | 2019-08-06 | 2019-10-18 | 陕西科技大学 | A kind of rural area water meter intelligent meter data recording system based on LoRa Yu the 4G network integration |
| CN210776306U (en) * | 2019-11-29 | 2020-06-16 | 宁夏锐波网络有限公司 | Wireless valve measurement and control system based on cloud SCADA |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758704A (en) * | 2020-06-05 | 2021-12-07 | 国核电站运行服务技术有限公司 | Intelligent valve diagnosis monitoring system, method, terminal and intelligent terminal |
| CN113758704B (en) * | 2020-06-05 | 2024-02-27 | 国核电站运行服务技术有限公司 | Intelligent diagnosis and monitoring system and method for valve, terminal and intelligent terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103513638B (en) | Robot welding manufacturing line wireless network supervisory system | |
| RU2380732C2 (en) | Technological device with diagnostic annunciation | |
| CN210776306U (en) | Wireless valve measurement and control system based on cloud SCADA | |
| CN201610970U (en) | GPRS intelligent electric valve actuating mechanism | |
| CN202003213U (en) | PROFIBUS (process field bus)-based electric control system of coal mining machine | |
| CN110942400B (en) | Automatic point-to-point method and device for intelligent substation monitoring system | |
| CN104380216A (en) | Use of an IO link for linking field devices | |
| CN201107613Y (en) | LD intelligent electric operator based on Modbus on site bus | |
| US20080155241A1 (en) | Method and apparatus to facilitate logic control and interface communication | |
| CN110764483A (en) | Valve wireless measurement and control method and system based on cloud SCADA | |
| CN110825013A (en) | Intelligent remote monitoring, early warning and control terminal | |
| CN201427207Y (en) | Flying saw controlling system based on singlechip human-machine interface module | |
| US6906638B2 (en) | Sensor unit | |
| CN210604894U (en) | Relay comprehensive test device | |
| CN109120724B (en) | Method for realizing GPRS collector for data transmission based on GPRS network | |
| CN209560322U (en) | Dynamic environment monitoring device | |
| CN210052032U (en) | Well site sharing intelligent remote terminal control device based on wireless network | |
| CN211744144U (en) | Intelligent monitoring device for low-voltage direct-current small bus | |
| CN113176438A (en) | Transformer substation secondary circuit detector and detection method | |
| KR101368791B1 (en) | Programmable fieldbus internet gateway control method. | |
| Wang et al. | Design of PC communication with HART field instrumentation | |
| CN220582660U (en) | Air quantity valve remote monitoring system of central air conditioner | |
| CN107632737B (en) | Resistance touch screen additional control circuit and control method based on digital bridge | |
| CN204437452U (en) | Intelligent electric valve positioning device | |
| KR100415937B1 (en) | Real Time Monitoring and Data Acquisition Control System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |