Patent ID: 11861552
Assignee: CHENGDU PUHUIDAO SMART ENERGY TECHNOLOGY CO., LTD.
Field: IT methods for management (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. An Internet of Things system for managing liquefied natural gas (LNG) tanking safety based on location matching, which is realized by a method for managing LNG tanking safety based on location matching, wherein the Internet of Things system includes an object platform, a sensor network platform, an LNG distributed energy management platform, a service platform, and a user platform;
the object platform is configured to perceive and acquire vehicle information of an LNG tanker and terminal operation information of an LNG distributed energy intelligent terminal, generate a request for tanking based on the terminal operation information and transmit the request for tanking to the LNG distributed energy management platform through the sensor network platform;
the object platform includes the LNG distributed energy intelligent terminal and LNG tanker; the LNG distributed energy intelligent terminal is configured to perceive and acquire location information and LNG storage information of the LNG distributed energy intelligent terminal through a perceiving and acquiring device, and generate the request for tanking when an LNG storage is lower than a preset alarm threshold, and send the request for tanking and location information to the LNG distributed energy management platform;
the sensor network platform is configured to realize a communication connection for perception and control between the management platform and the object platform;
the LNG distributed energy management platform is configured to generate a task plan for tanking based on the acquired vehicle information of the LNG tanker and the terminal operation information of the LNG distributed energy intelligent terminal and send the task plan for tanking to the LNG tanker and the LNG distributed energy intelligent terminal respectively, and perform real-time tracking and monitoring on a driving path of LNG tanker; the LNG distributed energy management platform is configured to obtain vehicle information of an LNG tanker currently in communication with the LNG distributed energy management platform after receiving the request for tanking and location information of the LNG distributed energy intelligent terminal, the vehicle information includes a tanker number, vehicle location information, and vehicle speed information; obtain a tanker number and vehicle location information of an LNG tanker with a shortest transportation time from the LNG distributed energy intelligent terminal according to a shortest time matching principle, generate the task plan for tanking and send the task plan for tanking to the LNG tanker and the LNG distributed energy intelligent terminal respectively;
a process of performing real-time tracking and monitoring on a driving path of the LNG tanker by the LNG distributed energy management platform specifically includes:
pre-planning, by the LNG distributed energy management platform, a path for the LNG tanker according to the vehicle location information of the LNG tanker and a location of the LNG distributed energy intelligent terminal;
selecting an inertial reference system as a reference, setting a center of coordinates at a center of the LNG tanker, and constructing driving coordinates of the LNG tanker according to the vehicle location information and vehicle speed information of the LNG tanker;
determining an attitude angle and direction information of the LNG tanker based on the driving coordinates of the LNG tanker, dividing a total gravitational acceleration of the LNG tanker into several components, and adopting an accumulating linear acceleration manner to obtain a displacement range of the LNG tanker, calculating a directional angle value of the LNG tanker, and introducing measured acceleration components into the driving coordinates to infer a driving direction of the LNG tanker;
analyzing and obtaining the driving path of the LNG tanker according to the driving direction and vehicle location information of the LNG tanker, and matching a pre-planned path for the tanking and the driving path of the LNG tanker, issuing a path deviation alarm to the LNG tanker if the two paths do not match;

the service platform is configured to obtain the vehicle information of the LNG tanker and the terminal operation information of the LNG distributed energy intelligent terminal in a process of LNG tanking required by a user from the LNG distributed energy management platform; and
the user platform is configured to obtain the vehicle information of the LNG tanker and the terminal operation information of the LNG distributed energy intelligent terminal from the service platform for various users.