Power van control system based on wireless local area network Modbus communication

Abstract

The utility model belongs to the field of power van wireless control, and particularly relates to a power van control system based on wireless local area network Modbus communication, which comprises a handheld operating device, a direct current voltage stabilizing module, a PLC (programmable logic controller), a controller and a sensor. The direct current voltage stabilizing module provides power for electric equipment, the handheld operation device is in wireless communication with the PLC, the PLC is electrically connected with the controller, the controller controls the power source device, and the sensor is electrically connected with the controller. According to the utility model, the problem that the power van cannot be remotely operated is solved, the operation of the power van end and the load end can be completed by a single person, the labor cost is saved, and the convenience and safety of the operation are improved; the PLC serves as a data interaction medium, a wireless local area network and an RS485 network are adopted to achieve issuing and execution of wireless operation instructions, and the function of remotely and wirelessly operating starting, stopping and an output mode of the power van is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of wireless control of power supply vehicles, specifically relating to a power supply vehicle control system based on Modbus wireless local area network communication. Technical Background

[0002] A power supply vehicle is a mobile power supply unit integrating a generator set, control system, power distribution device, and auxiliary equipment. It provides stable and reliable power support when there is no fixed power source or when the power grid fails. It is widely used in emergency rescue, engineering construction, military activities, and large-scale event support, serving as an important supplement to the modern power supply system. Regarding its control system, current products on the market use onboard control boxes or panels for human-machine interaction. This requires at least one person operating the power supply vehicle and another operating the load. Throughout the process, the two individuals need to maintain constant communication and coordination via walkie-talkies or similar devices. This method demands significant human resources and is prone to information transmission errors during communication. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a power vehicle control system based on Modbus wireless local area network (WLAN) communication. The control system includes a handheld tablet, a wireless router, a DC voltage regulator module, a PLC, an IG controller, an IM controller, a circuit breaker, and various sensors. The operator uses the handheld tablet to transmit control commands to the PLC via the LAN created by the wireless router. The PLC then transmits the control commands to the IG and IM controllers using the Modbus communication protocol. Finally, the IG and IM controllers execute the control commands to control the circuit breaker's on / off state, achieving wireless control functionality. Simultaneously, voltage, current, and temperature signals collected by various sensors can also be transmitted to the handheld tablet, allowing the operator to remotely view the real-time status information of the power vehicle.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A power supply vehicle control system based on Modbus wireless local area network communication includes a handheld operating device, a DC voltage regulator module, a PLC, a controller, and sensors; the DC voltage regulator module provides power to the electrical equipment, the handheld operating device communicates wirelessly with the PLC, the PLC is electrically connected to the controller, the controller controls the power supply vehicle's power supply device, and the sensors are electrically connected to the controller.

[0006] Furthermore, the PLC creates a local area network (LAN) via a wireless router, and the handheld operating device connects to the LAN via Wi-Fi to interact with the PLC.

[0007] Furthermore, the PLC, controller, and sensors form an RS485 network.

[0008] Furthermore, the RS485 network uses the Modbus communication protocol for data exchange.

[0009] Furthermore, the handheld operating device is independent of the power supply vehicle. The wireless router, DC regulated power supply, and PLC are located in the electrical control box, the controller is located on the operating panel, the circuit breaker is located in the circuit breaker cabinet of the vehicle, and various sensors are located on the output wiring harness of the power supply vehicle and inside the vehicle.

[0010] Furthermore, the controller includes an IG controller and an IM controller, which control the on / off state of the circuit breaker.

[0011] This invention implements a power supply vehicle control system based on Modbus wireless local area network communication. It solves the problem of the inability to remotely operate the power supply vehicle, enabling a single person to operate both the power supply vehicle and the load end, saving labor costs and improving operational convenience and safety. Using a PLC as the data interaction medium, it employs both wireless local area network and RS485 network to achieve the issuance and execution of wireless operation commands. It realizes the function of remotely wirelessly operating the power supply vehicle's start / stop and output modes. Attached Figure Description

[0012] Figure 1 : Schematic diagram of the control system described in this utility model. Detailed Implementation

[0013] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solution of this application, rather than limitations on the technical solution of this application. Unless otherwise specified, the embodiments and technical features in the embodiments can be combined with each other.

[0014] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0015] like Figure 1As shown, a power vehicle control system based on Modbus wireless LAN communication includes a handheld operating device, a wireless router, a DC voltage regulator module, a PLC, an IG controller, an IM controller, a circuit breaker, and various sensors. The handheld operating device is independent of the power vehicle and is used by the operator within the operating area; in this embodiment, the handheld operating device is a handheld tablet. The wireless router, DC voltage regulator, and PLC are located in the electrical control box; the IG controller and IM controller are located on the operating panel; the circuit breaker is located in the vehicle's circuit breaker cabinet; and various sensors are located on the power vehicle's output wiring harness and inside the vehicle. The DC voltage regulator module provides 24V DC power to the wireless router and PLC. The wireless router and PLC are connected via Ethernet ports to create a local area network (LAN). The handheld tablet connects to the LAN via Wi-Fi to achieve data interaction with the PLC. The PLC is connected to the IG controller and IM controller via RS485 lines, using the Modbus communication protocol for data interaction. The IG controller and IM controller control the circuit breaker's on / off state via hardwired connections to control the power vehicle's output power. Various sensors transmit the collected voltage, current, and temperature signals to the IG controller and IM controller via hardwired connections.

[0016] A local area network (LAN) is formed by a handheld tablet, a wireless router, and a PLC. This LAN facilitates data exchange between the handheld tablet and the PLC. Operators transmit control commands to the PLC via the handheld tablet, enabling remote wireless command issuance. An RS485 network is formed by the PLC, IG controller, IM controller, circuit breakers, and various sensors. The RS485 network uses the Modbus communication protocol to enable data exchange between the PLC and the IG and IM controllers. Upon receiving control commands, the IG and IM controllers control the opening and closing of the circuit breakers and the start and stop of the generator set according to their internal programs, thus executing remote wireless control commands. Simultaneously, the PLC can also read generator set voltage, current, and temperature information from the IG and IM controllers via the RS485 network and transmit it to the handheld tablet via the LAN, enabling remote monitoring of the generator set's status.

[0017] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A power vehicle control system based on Modbus wireless local area network communication, characterized in that, It includes a handheld operating device, a DC voltage regulator module, a PLC, a controller, and sensors; the DC voltage regulator module provides power to the electrical equipment, the handheld operating device is wirelessly connected to the PLC, the PLC is electrically connected to the controller, the controller controls the power supply device of the power supply cart, and the sensors are electrically connected to the controller.

2. The power vehicle control system based on Modbus wireless local area network communication according to claim 1, characterized in that, The PLC creates a local area network (LAN) via a wireless router, and the handheld operating device connects to the LAN via Wi-Fi to interact with the PLC.

3. The power vehicle control system based on Modbus wireless local area network communication according to claim 1, characterized in that, The PLC, controller, and sensors form an RS485 network.

4. The power vehicle control system based on Modbus wireless local area network communication according to claim 3, characterized in that, The RS485 network uses the Modbus communication protocol for data exchange.

5. The power vehicle control system based on Modbus wireless local area network communication according to claim 1, characterized in that, The handheld operating device is independent of the power supply vehicle. The wireless router, DC regulated power supply, and PLC are located in the electrical control box, the controller is located on the operating panel, the circuit breaker is located in the circuit breaker cabinet in the carriage, and various sensors are located on the power supply vehicle's output wiring harness and inside the carriage.

6. The power vehicle control system based on Modbus wireless local area network communication according to claim 5, characterized in that, The controller includes an IG controller and an IM controller, which control the circuit breaker's on / off state.

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