Gate valve rotation control lock control system

Abstract

The invention discloses a gate valve rotation control lock control system which comprises a system power supply, a master control MCU, a CAN communication bus circuit, a motor driving circuit, a motor, a wrench in-place sensor, an opening in-place sensor, a closing in-place sensor, a display and input module and a memory module. A logic judgment module is arranged in the main control MCU, a motor control instruction is generated according to a sensor signal or an external instruction, and the CAN communication bus circuit supports multi-protocol communication. The display and input module realizes man-machine interaction, and the memory module stores system data. The system solves the problems of inconvenient interaction, data storage missing, poor communication compatibility and the like of an existing gate valve lock control system, has the advantages of convenient interaction, data traceability, high communication compatibility and the like, and is suitable for gate valve intelligent control in industrial automation and other scenes.

Description

Technical Field

[0001] This application relates to the technical field of valve control, and particularly to a gate valve rotation control and locking system. Background Art

[0002] There are significant defects in the current gate valve locking control systems on the market: Firstly, the operation interactivity is poor. There is a lack of display and input modules, making it impossible to intuitively display the system status and difficult to receive convenient user input. Secondly, the data storage capacity is missing, and it is unable to record key data such as system parameters and operation logs, which is not conducive to later maintenance and data analysis. Thirdly, the communication compatibility is insufficient. The communication modules of traditional locking control systems are difficult to adapt to various external device protocols, restricting system expansion. Fourthly, the control intelligence level is low, relying on manual judgment of the valve state, with low operation efficiency and prone to errors. For example, in industrial scenarios, traditional gate valve locking control systems prevent operators from obtaining the valve status in real time and remotely adjusting parameters, seriously affecting the production automation process. Summary of the Invention

[0003] This invention mainly aims at the problems of inconvenient interaction, lack of data storage, and poor communication compatibility in the existing gate valve locking control systems, and provides a gate valve rotation control and locking system.

[0004] The object of this invention is mainly achieved through the following solutions: A gate valve rotation control and locking system includes: A system power supply for powering the entire locking control system; A main control MCU electrically connected to the system power supply and serving as the system control core; A CAN communication bus circuit communicatively connected to the main control MCU for realizing communication functions with external devices; A motor drive circuit electrically connected to the main control MCU to receive control signals from the main control MCU; A motor electrically connected to the motor drive circuit to perform a rotation action under the drive of the motor drive circuit; A wrench-in-place sensor, an open-in-place sensor, and a close-in-place sensor, all electrically connected to the main control MCU, respectively used to detect the wrench-in-place state, the open-in-place state of the locking gate valve, and the close-in-place state of the locking gate valve.

[0005] Preferably, the system further includes a display and input module for displaying the system status and receiving user input.

[0006] Preferably, the system further includes a memory module for storing system parameters and data.

[0007] Preferably, the main control MCU is built-in with a logic judgment module for generating motor drive control instructions according to the signals fed back by the wrench-in-place sensor, the open-in-place sensor, and the close-in-place sensor.

[0008] Preferably, the main control MCU controls the motor drive circuit by receiving external instructions or sensor signals, and then controls the forward and reverse rotation of the motor to realize the opening and closing of the gate valve.

[0009] Preferably, the CAN communication bus circuit supports multiple communication protocols to ensure the compatibility and stability with different external devices.

[0010] In summary, compared with the prior art, the present invention has the following beneficial technical effects: (1) Through the integration of the main control MCU and multiple sensors, the present invention realizes the intelligent control of the rotation operation of the gate valve, improving the accuracy and reliability of the operation; (2) By setting the CAN communication bus circuit to support multiple communication protocols, the present invention can seamlessly dock with different external devices, meet the integration requirements of diverse scenarios, and improve the system scalability; (3) In the present invention, the display and input module displays information such as the state of the gate valve and the operating parameters of the system in real time, and the user can quickly issue instructions through the input module without relying on additional devices, improving the intuitiveness and convenience of the operation; (4) In the present invention, the memory module stores system parameters, operation records, fault data, etc., which is convenient for later traceability analysis and provides data support for system maintenance and optimization. Description of the Drawings

[0011] Figure 1 is a structural block diagram of the present invention. Detailed Embodiments

[0012] The technical solution of the present invention will be further specifically described below through specific embodiments in conjunction with the drawings. It should be understood that the implementation of the present invention is not limited to the following embodiments, and any formal modification and / or change made to the present invention will fall within the protection scope of the present invention.

[0013] As Figure 1 shown, the present invention discloses a technical solution, a gate valve rotation control and locking system, including: a system power supply, a main control MCU, a CAN communication bus circuit, a motor drive circuit, a motor, a wrench-in-place sensor, an open-in-place sensor, a close-in-place sensor, a display and input module, and a memory module.

[0014] The system power supply uses a high-performance switching power supply to provide stable and reliable electrical energy for the entire system; The main control MCU is electrically connected to the system power supply and serves as the system control core. It is built-in with a logic judgment module (including a logic judgment algorithm) and is connected to each module through interfaces such as GPIO, CAN, and PWM, and can generate motor drive control instructions according to sensor signals; The CAN communication bus circuit is communicatively connected to the main control MCU and is used to implement communication functions with external devices. It adopts a high-speed CAN bus, supports multiple communication protocols, and ensures compatibility and stability with external devices. The motor drive circuit is electrically connected to the main control MCU, receives the control signal from the main control MCU, and the motor drive chip can achieve precise control of the motor. The motor is electrically connected to the motor drive circuit and performs a rotation action under the drive of the motor drive circuit. Select a suitable model according to actual needs. For example, a DC motor is driven based on the L298N chip and receives the PWM signal from the main control MCU to control forward and reverse rotation. The wrench-in-place sensor, open-in-place sensor, and close-in-place sensor are all electrically connected to the main control MCU and are respectively used to detect the wrench-in-place state, the open-in-place state of the lock gate valve, and the close-in-place state of the lock gate valve.

[0015] Specifically, the system further includes a display and input module for displaying the system status and receiving user input.

[0016] Specifically, the system further includes a memory module for storing system parameters and data.

[0017] Specifically, the main control MCU controls the motor drive circuit by receiving external instructions or sensor signals, and then controls the rotation of the motor to achieve the opening and closing of the gate valve.

[0018] The working principle of a gate valve rotation control and locking system provided by this application is as follows: 1. Hardware construction: The system power supply adopts an AC-DC conversion circuit to convert 220V AC into 12V DC, and outputs 5V and 3.3V voltages through a voltage stabilization module to supply power to the display and input module, the main control MCU, etc. The main control MCU selects an ARM Cortex-M4 series chip. Its I / O ports are connected to the wrench-in-place sensor (using an infrared transmissive sensor), the open-in-place sensor (reed switch), and the close-in-place sensor (Hall sensor); the communication interface is connected to the CAN communication bus circuit (integrated with transceivers supporting MODBUS and CANopen protocols); the data interface is connected to the memory module (selecting a Flash memory); the display and input module uses a touch screen and is connected to the main control MCU through an SPI interface. The motor drive circuit selects an L298N drive chip, receives the PWM signal and direction control signal from the main control MCU, and drives the DC motor to rotate forward and backward.

[0019] 2. Working process: Gate valve opening: The user issues a "valve opening" command through the display and input module. After receiving the command, the main control MCU detects the signal of the wrench in place sensor. After confirming that the wrench is in place, a forward rotation command is generated through the logic judgment module to drive the motor to drive the gate valve to rotate. After the valve in place sensor detects that the valve is in place, a feedback signal is sent to the main control MCU, the motor stops, and at the same time, the display and input module shows the "valve opening completed" status, and the memory module records data such as the valve opening time and operation instructions; Data interaction: The external device sends a parameter configuration command through the CAN communication bus circuit. After parsing the protocol, the CAN communication bus circuit transmits the command to the main control MCU. The main control MCU updates the system parameters and stores them in the memory module, and at the same time prompts the successful parameter update through the display and input module.

[0020] This system can be widely applied to various industrial automation scenarios, such as chemical industry, petroleum, natural gas, water treatment and other fields. By intelligently controlling and managing the gate valve, it can improve production efficiency, reduce operating costs and ensure production safety.

[0021] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A gate valve rotation control and locking system, characterized in that: include: System power supply, used to power the entire lock control system; The main control MCU is electrically connected to the system power supply and serves as the system control core; CAN communication bus circuit, connected to the main control MCU, is used to realize the communication function with external devices; The motor drive circuit is electrically connected to the main control MCU and receives the control signal of the main control MCU; The motor is electrically connected to the motor drive circuit and performs a rotational motion when driven by the motor drive circuit; The wrench in-position sensor, the open in-position sensor, and the closed in-position sensor are all electrically connected to the main control MCU, and are used to detect the wrench in-position state, the gate valve open in-position state, and the gate valve closed in-position state respectively.

2. A gate valve rotation control and locking system according to claim 1, characterized in that: The system also includes a display and input module for displaying system status and receiving user input.

3. A gate valve rotation control and locking system according to claim 1, characterized in that: The system also includes a memory module for storing system parameters and data.

4. A gate valve rotation control and locking system according to claim 1, characterized in that: The main control MCU is equipped with a logic judgment module for generating a motor drive control instruction according to the feedback signals of the wrench in-position sensor, the open in-position sensor and the closed in-position sensor.

5. A gate valve rotation control and locking system according to claim 4, characterized in that: The main control MCU controls the motor drive circuit by receiving external instructions or sensor signals, and further controls the rotation of the motor to realize the opening and closing of the gate valve.

6. A gate valve rotation control and locking system according to claim 1, characterized in that: The CAN communication bus circuit supports multiple communication protocols to ensure compatibility and stability with different external devices.

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