Methods and systems for managing LNG distributed terminals based on internet of things (IoT)

A method for managing a liquefied natural gas (LNG) distributed terminal based on Internet of Things (IoT), comprising steps of:

• configuring a distributed terminal object platform through a sensing network platform configuration interface, obtaining relevant information of the terminal object platform, and uploading the relevant information of the terminal object platform to a terminal management platform arranged in a cluster, the terminal object platform including a plurality of access points, and a sensing network platform being respectively connected with the access points and inter-network protocol IP segments in parallel;
• the terminal object platform comprising an LNG smart gas supply terminal and a smart gas meter, the sensing network platform being connected to the access points of the LNG smart gas supply terminal and the smart gas meter, respectively, transmitting through the sensing network platform to the terminal management platform operating status information, location information, malfunction information, LNG storage information, and LNG vaporization information of the LNG smart gas supply terminal;
• transmitting the operating status information, the malfunction information, and gas consumption volume information of the smart gas meter to the terminal management platform through the sensing network platform;
• the sensing network platform comprising a switch and connected to the access points of the LNG smart gas supply terminal and the smart gas meter respectively through a configuration interface of the switch, obtaining parameters, command templates, and binding parameters of the LNG smart gas supply terminal and the smart gas meter, the binding parameters and the parameters being associated with the command templates, and the command templates being obtained by analyzing and rectifying control commands of the LNG smart gas supply terminal and the smart gas meter, and the LNG smart gas supply terminal and the smart gas meter corresponding to different command templates;
• sending an instruction by a service platform to the terminal management platform through an asynchronous interaction according to a request of a user platform, and storing communication information via redis;
• the asynchronous interaction including following steps:
• storing request information for sending a configuration file in a redis sequence in a memory database by the terminal management platform, and the configuration file being used to configure the terminal object platform;
• establishing a relationship with the user platform and the terminal management platform through the service platform, and storing a session request sent by the user platform to the service platform in the redis sequence by the terminal management platform;
• sending a relevant configuration file by the terminal management platform to the user platform according to the instruction sent by the service platform;
• storing received information in the redis sequence after completing receiving by the user platform;
• performing information management by the terminal management platform on the sensing network platform and the terminal object platform respectively according to the instruction sent by the service platform;
• the terminal management platform comprising an information processing module, the information processing module abstracting the request information for sending the configuration file into a Download Object instance object and storing the Download Object instance object in the redis sequence in the memory database according to serial numbers of the LNG smart gas supply terminal and the smart gas meter;
• the terminal management platform also comprising a sensing network management module and a terminal object management module, after passing a two-way authentication between the information processing module and the service platform, conducting a session with the service platform through the sensing network management module and the terminal object management module;
• the service platform comprising a comprehensive query module, when starting a first session by the comprehensive query module with the sensing network management module and the terminal object management module through the information processing module, respectively, the sensing network platform and the terminal object platform reporting an inform message, the inform message comprising a session ID and a device information, the device information comprising a switch access point information, the operating status information, the location information, the malfunction information, the LNG storage information, the LNG vaporization information of the LNG smart gas supply terminal, the operating status information, the malfunction information, the gas consumption volume information of the smart gas meter, and the parameters, the command templates and the binding parameters of the LNG smart gas supply terminal and the smart gas meter, establishing through the information processing module a first request between the session ID and the comprehensive query module and storing the first request in the redis sequence;
• and the service platform also comprising an account management module and an alarm indication module, after passing the two-way authentication between the comprehensive query module and the user platform by the user platform, conducting a communication by the user platform with the account management module and the alarm indication module, and storing the communication information via the redis when the user platform sends multiple session requests.