Container transportation monitoring system based on active electronic seal and GPS satellite positioning
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I. Introduction
Container transportation is an important part of logistics transportation. Due to the loopholes in the container transportation process, it is very easy to be stolen, package dropped in the middle, and reselling in other places during the transportation of valuable goods, causing huge losses to the enterprise. During the customs transit, it was used by criminals. Smuggling goods. All of the above urgently need to use a high-tech method to effectively monitor container transportation.
The GPS satellite positioning system with active electronic seal not only monitors the container transportation and the status of the container, and can clearly grasp the driving situation of the vehicle at any time, but also monitors the information of the container in real time through the active electronic seal. Fully use the GPS monitoring interface to monitor vehicles and containers, real-time positioning, alarm and other operations, to achieve real-time and comprehensive dynamic information management throughout the transportation process.
2. System structure
GPS satellite positioning system with active electronic lead seal, using active RFID technology, GPRS/SMS service of GSM communication technology, GPS global satellite positioning technology, GIS technology, computer network and database technology. The system consists of six parts: GIS map platform, control center system, wireless communication platform (GSM), global satellite positioning system (GPS), on-board equipment, and active electronic seal RFID equipment to form an all-weather, full-range container transport vehicle supervision platform. The vehicles connected to the network are mainly container transportation. The system can implement functions such as dynamic tracking, monitoring, scheduling, management, sealing/unsealing monitoring of active electronic seals, and container monitoring on the way to registered vehicles. For the monitored vehicle, it can be displayed on the electronic map, and the vehicle running track data, real-time active electronic seal information and container status can be saved, and the information will be sent to the center once it is abnormal.
The overall structure of the system
The GPS satellite positioning system with active electronic seal is based on the Internet, which organically combines the monitoring center, remote monitoring workstation, data server, wireless mobile communication network, GPS vehicle terminal, and active electronic seal. Realizing distributed multi-level monitoring with Internet server as the core has the advantages of “economical, practical, high performance-price ratio, and strong scalability”.
3. Application of GPS satellite positioning system with active electronic lead seal in container transportation
For applications in container transportation, the container transportation vehicle management system is an integral part of the monitoring center or sub-control center and the user center. It provides the application server with an operation interface for registering, modifying, and deregistering on-board terminal users. At the same time, it provides an operation interface for configuring alarm routing information and vehicle terminal parameters, and also integrates a large number of business analysis and management tools for container transportation.
The application in container transportation has the following business contents:
(1) Vehicle monitoring;
(2) Container monitoring and alarm (active electronic lead sealing system provides functions);
(3) Real-time positioning;
(4) Data reported by on-board equipment;
(5) Vehicle alarm and report functions;
(6) Alarm monitoring;
(7) Remote control;
(8) Vehicle scheduling;
(9) Saving and playback of vehicle trajectory data.
Four, core technology
1. Multi-level low power consumption technology
Add an automatic power management module at the hardware level, and implement an adaptive hardware sleep mechanism for modules with fewer operations. At the software level, it implements a multi-level energy management mechanism at the hardware driver level, protocol level, and application level to minimize node operating power consumption.
2. RFID anti-metal tag antenna design based on 2.4GHz frequency band
The starting point of the design is to make reasonable use of the coupling effect between the metal object and the antenna, so as to solve the problem of the sensitivity of the tag antenna to metal. When the tag antenna is close to a metal object, the function of the surface of the metal object is similar to the reflector of a traditional Yagi antenna. If the metal surface becomes a part of the tag antenna itself, that is, used as an energy reflector, the adverse effects of metal on the antenna can be turned into a beneficial side.
Five, concluding remarks
The GPS satellite positioning system with active electronic lead seals is used in container transportation to build an intelligent container transportation dispatch management platform, which can not only meet the needs of data and voice, wireless and wired dispatch management, but also provide protection The monitoring method of robbing the police. The active electronic lead sealing system further extends the information monitoring tentacles, making the monitoring information more comprehensive and detailed. In order to build a highly information-based modern management system that meets the needs of intelligent dispatch, vehicle monitoring and management, anti-robbery alarm, emergency rescue, etc., so as to effectively improve the operating efficiency and benefits of vehicles, and vigorously improve the management level of container transportation to achieve Modernization, real-time and informatization of container transportation dispatching management.
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