Comprehensive management and control system of hydrogen refueling station

Abstract

The utility model discloses a hydrogen refueling station comprehensive management and control system. The utility model aims to solve the problems of poor integration level and low management efficiency of each management control system of the existing hydrogen refueling station. The system comprises a station control system, a gateway and a server, wherein the station control system is in corresponding communication connection with a compressor in a hydrogen refueling station, hydrogen refueling / hydrogen unloading equipment, an alarm controller, sensors for monitoring corresponding environmental parameters and electromagnetic valves for controlling connection and disconnection of corresponding pipelines; the gateway is in communication connection with the station control system; the server is in wired / wireless communication connection with the gateway; the applet management and control module correspondingly interacts with the server and runs on terminal equipment; the station control system comprises a PLC, a communication unit and an input and output unit, wherein the communication unit and the input and output unit are in corresponding communication connection with the PLC. According to the system, the management and control efficiency of the hydrogen refueling station can be improved and the management cost of the hydrogen refueling station can be reduced through overall data planning and an applet control module based on terminal equipment.

Description

Technical Field

[0001] This application relates to the technical field of hydrogenation, and specifically relates to a comprehensive management and control system for a hydrogen refueling station. Background Art

[0002] As the core support in the field of hydrogen energy application, a hydrogen refueling station is a key infrastructure for hydrogen fuel cell vehicles to move towards commercialization. A hydrogen refueling station is specifically used to refuel hydrogen fuel cell vehicles, storing and transporting hydrogen in a high-pressure or low-temperature manner to meet the hydrogen refueling needs of hydrogen fuel cell vehicles. For a hydrogen refueling station with off-site hydrogen supply, its hydrogen is mainly transported to the hydrogen refueling station by means of long tube trailers, liquid hydrogen tank trucks, pipelines, etc., then pressurized by a hydrogen compressor and stored in a high-pressure storage tank in the station, and finally hydrogen is refueled into the fuel cell vehicle through a hydrogen dispenser.

[0003] The control system of a hydrogen refueling station is a crucial part of the hydrogen refueling station, which is responsible for the operation monitoring, equipment control, data recording, safety management, etc. of the entire hydrogen refueling station. Among them, the control system of a hydrogen refueling station usually includes multiple subsystems, such as an information management system, a station control system, a safety monitoring system, a hydrogen dispenser control system, etc. However, during the process of implementing the technical solutions in the embodiments of this application, the inventors of this application found that the existing control systems of hydrogen refueling stations are in a relatively independent relationship, and data sharing cannot be achieved between systems, with disadvantages such as poor system integration and low management efficiency.

[0004] The information disclosed in this background art section is only used to deepen the understanding of the background art of this disclosure, and should not be regarded as an admission or any form of implication that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0005] In view of at least one of the above technical problems, this disclosure provides a comprehensive management and control system for a hydrogen refueling station, aiming to solve the problems of poor integration and low management efficiency of the existing management and control systems of hydrogen refueling stations.

[0006] According to one aspect of this disclosure, a comprehensive management and control system for a hydrogen refueling station is provided, which includes a station control system respectively corresponding to and communicatively connected to a compressor, hydrogen refueling / unloading equipment, an alarm controller, various sensors for monitoring the operating parameters of corresponding equipment, and various solenoid valves for controlling the on / off of corresponding pipelines in the hydrogen refueling station, a gateway communicatively connected to the station control system, a server communicatively connected to the gateway by wire / wireless, and a small program management and control module corresponding to and interacting with the server and running on a terminal device; the station control system includes a PLC, a communication unit and an input / output unit respectively corresponding to and communicatively connected to the PLC.

[0007] In some embodiments of this disclosure, the station control system is connected to the compressor through a network cable and transmits data in accordance with the Siemens S7 protocol.

[0008] In some embodiments of the present disclosure, the hydrogenation equipment includes a hydrogen storage container, a sequence control panel, and a hydrogenation machine; the hydrogen unloading equipment includes a hydrogen unloading column.

[0009] In some embodiments of the present disclosure, the alarm controller includes a fire alarm controller and a combustible gas leakage alarm controller.

[0010] In some embodiments of the present disclosure, the station control system is communicatively connected to the hydrogenation / hydrogen unloading equipment and / or the alarm controller via an RS485 bus, and data is transmitted correspondingly using the Modbus protocol.

[0011] In some embodiments of the present disclosure, the station control system is connected to the gateway via a network cable, and data is exchanged correspondingly using the TCP protocol.

[0012] In some embodiments of the present disclosure, the server and the gateway communicate wirelessly via 4G / 5G.

[0013] In some embodiments of the present disclosure, the mini-program control module includes a hydrogenation station control module for monitoring the operation status of the hydrogenation station, a hydrogen source control module for monitoring the hydrogen source within the station, and a vehicle control module for providing the operation status of each hydrogenation station and the position relative to the mini-program running terminal based on the mini-program running terminal positioning module.

[0014] One or more technical solutions provided in the embodiments of the present application have at least any one of the following technical effects or advantages:

[0015] The operation and operation data of each device within the hydrogenation station are read and controlled through the station control system, and a connection with the server is established through the gateway, thereby achieving the purpose of overall sharing of data between the in-station systems and improving the system integration degree. The mini-program control module running on the user terminal device queries and regulates the data uploaded to the server, thereby reducing the control cost and improving the control efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic block diagram of a comprehensive control system for a hydrogenation station in an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The programs involved or relied on in the following embodiments are all conventional programs or simple programs in the technical field, and those skilled in the art can make conventional selections or adaptive adjustments according to specific application scenarios. The unit modules, sensors, and other devices involved in the following embodiments are all conventional commercially available products unless otherwise specified.

[0018] To better understand the technical solutions of the present application, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0019] To solve the technical problems of the existing hydrogen refueling station control systems being independent of each other, with poor system integration and low management efficiency, this example discloses a comprehensive control system for hydrogen refueling stations. Refer to Figure 1 , which includes a station control system, a gateway, a server, and a mini-program control module running on a terminal device.

[0020] Specifically, in this embodiment, to achieve the integrated monitoring of various working information and parameters such as the operation of the hydrogen refueling station, a station control system is set up. In this example, the station control system includes a programmable logic controller (PLC). To achieve the transmission of data to the gateway and the server, the station control system also includes a communication unit electrically connected to the PLC, and a data path between the PLC, the gateway, and the server is established through the communication unit. In addition, in this embodiment, the PLC is connected to each device in the hydrogen refueling station through an input / output unit to achieve the purpose of obtaining the working data of each device in the station and transmitting corresponding control instructions.

[0021] In a hydrogen refueling station, a hydrogen compressor is provided to achieve hydrogen refueling. To control the compressor, in this embodiment, the station control system establishes a communication connection with the control unit of the compressor through an Ethernet cable, and transmits the operating data of the compressor and sends control commands to the compressor through the Siemens S7 protocol, thereby achieving the control of the working state of the compressor. In addition, the station control system also establishes a communication connection with the hydrogen refueling equipment and hydrogen unloading equipment in the hydrogen refueling station through the RS485 bus, and conducts data transmission through the Modbus protocol. Specifically, in this embodiment, the hydrogen refueling equipment includes a hydrogen storage container, a sequence control panel, and a hydrogen refueling machine. The station control system communicates with the control units of the hydrogen storage container, the sequence control panel, and the hydrogen refueling machine respectively, and correspondingly obtains the hydrogen storage capacity information in the hydrogen storage container, reads and controls the working state of the sequence control panel, obtains the working information of the hydrogen refueling machine and hydrogen refueling control; in addition, in this example, the hydrogen unloading equipment includes a gas unloading column. Through the communication between the station control system and the gas unloading column, the on / off of the gas unloading column can be controlled and the current working information of the gas unloading column can be read. To achieve safety control in the hydrogen refueling station, an alarm controller including a fire alarm controller and a combustible gas leakage alarm controller is also provided in the hydrogen refueling station. The station control system establishes a data transmission path with the alarm controller through the RS485 bus and reads data through the Modbus protocol to obtain the safety control information in the station. In addition, various sensors for monitoring the working state of equipment and information such as hydrogen pressure, concentration, and temperature are respectively provided in the hydrogen refueling equipment. A number of solenoid valves for controlling the on / off of the pipeline where they are located are also connected in the hydrogen transmission pipeline. In this embodiment, the station control system also establishes a communication connection with each sensor and solenoid valve to obtain the hydrogen refueling working parameters; specifically, in this example, the sensor and the solenoid valve are respectively electrically connected to their corresponding equipment control units, and the station control system then establishes a data transmission path with the equipment control unit, thereby indirectly obtaining the working data of each solenoid valve and each sensor, and outputting corresponding instructions to control the corresponding solenoid valve to act.

[0022] See Figure 1, to obtain and control the information of each device in the station, a mini-program control module runs on the terminal device. To enable the mini-program control module in the terminal device to obtain the working information of the hydrogen refueling station in a timely and accurate manner, in this embodiment, a communication link is established between the mini-program control module and the station control system through a gateway and a server. Specifically, in this example, a wired data transmission path is established between the gateway and the station control system through a network cable, and the TCP protocol is used to implement data interaction. The server includes a database and a management system. Data collection and detection are realized through the management system, and data storage is realized through the database. In this embodiment, the database uses a cloud database, and 5G wireless communication is used between the gateway and the database. In some other embodiments, 4G wireless communication is used between the gateway and the database. Thus, the mini-program control module establishes a communication interaction connection with the server through the wireless communication module of the terminal device, and then realizes data interaction with the station control system through the gateway, so as to realize the overall monitoring and management of various data in the hydrogen refueling station.

[0023] In this embodiment, the mini-program control module includes a hydrogen refueling station control module for monitoring the operation status of the hydrogen refueling station, a hydrogen source control module for monitoring the hydrogen source in the station, and a vehicle control module based on the mini-program running terminal positioning module for providing the operation status of each hydrogen refueling station and the position relative to the mini-program running terminal. Among them, through the hydrogen refueling station control module, the real-time operation data of the hydrogen refueling station equipment, the safety data of the alarm controller, etc. can be collected and uploaded to the server through the data gateway. The server performs logical processing and analysis on the uploaded data, which can be queried by the mini-program control module and can reduce the control pressure of the station control system at the same time. In addition, through the authorized mini-program running terminal device, there is no time and space limit to view the operation data of the hydrogen refueling station in a timely manner and perform corresponding control according to the authorization level. Since a data communication is established between the control unit of the hydrogen storage container and the station control system, the mini-program control module can read the hydrogen storage data uploaded to the server in real time through the data gateway through the hydrogen source control module. At the same time, after the logical processing of the server, if the current hydrogen storage is lower than the set lower limit of the storage, the server can actively send a prompt message to the terminal device through the mini-program control module, which is convenient for authorized logged-in users to timely master the hydrogen remaining information in the hydrogen refueling station and allocate the gas source in advance to avoid affecting the normal operation of the hydrogen refueling station. In addition, in this example, the mini-program control module also includes a vehicle control module for consumer users. The station control system uploads its operation status and site location to the server through the gateway. The consumer user can call the positioning module of the terminal device through the mini-program control module of the terminal device to query the nearby sites and routes, and can also obtain the operation information of the corresponding site received in the server through the vehicle control module for consumers to make reference decisions.

[0024] Although some preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted to include the preferred embodiments as well as all changes and modifications that fall within the scope of the present application.

[0025] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of its inventive concept. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A comprehensive management and control system for a hydrogen refueling station, characterized in that It includes a station control system respectively corresponding to and communicatively connected to a compressor, a hydrogen refueling device, a hydrogen unloading device, an alarm controller, various sensors for monitoring the operating parameters of the corresponding devices, and various solenoid valves for controlling the on / off of the corresponding pipelines, a gateway communicatively connected to the station control system, a server wired / wirelessly communicatively connected to the gateway, and a mini-program control module corresponding to interact with the server and running on a terminal device; The station control system includes a PLC, a communication unit and an input / output unit respectively corresponding to and communicatively connected to the PLC.

2. The integrated control system for a hydrogen refueling station according to claim 1, characterized in that, The station control system is connected to the compressor through a network cable and transmits data corresponding to the Siemens S7 protocol.

3. The comprehensive control system for a hydrogen refueling station according to claim 1, wherein, The hydrogen refueling device includes a hydrogen storage container, a sequence control panel, and a hydrogen refueling machine; the hydrogen unloading device includes a hydrogen unloading column.

4. The integrated hydrogen refueling station control system according to claim 1 or 3, characterized in that The station control system is communicatively connected to the hydrogen refueling / hydrogen unloading device and / or the alarm controller through an RS485 bus and transmits data corresponding to the Modbus protocol.

5. The comprehensive control system for a hydrogen refueling station according to claim 1, characterized in that The alarm controller includes a fire alarm controller and a combustible gas leakage alarm controller.

6. The integrated control system for a hydrogen refueling station according to claim 1, characterized in that, The station control system is connected to the gateway through a network cable and exchanges data corresponding to the TCP protocol.

7. The integrated control system for a hydrogen refueling station according to claim 1, wherein The communication between the server and the gateway is 4G / 5G wireless communication.

8. The integrated control and management system for a hydrogen refueling station according to claim 1, wherein The mini-program control module includes a hydrogen refueling station control module for monitoring the operating status of the hydrogen refueling station, a hydrogen source control module for monitoring the hydrogen source in the station, and a vehicle control module for providing the operating status of each hydrogen refueling station and the position relative to the mini-program running terminal based on the mini-program running terminal positioning module.

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