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1. Application background
The informatization level of the current container logistics process is one of the bottlenecks restricting the development of container transportation. The current status of domestic container management is: the information collection of containers basically depends on manual transcription or semi-automation, and the circulation management, tracking and monitoring of the container supply chain When the information is in isolation, only 65% of the real-time accurate data is available. Manual collection of container number information is used in the circulation of containers, which is inefficient and difficult to realize port automation. According to analysis, the global loss caused by theft of container cargo amounts to 30-50 billion U.S. dollars. Including indirect losses, the world loses 200 billion U.S. dollars every year. The flaws and loopholes in the container seal have become the soil for the breeding of various container crime methods. Criminals always use the loopholes and flaws in the container seal to easily commit crimes, and have repeatedly succeeded. Many logistics companies that specialize in container transportation have suffered multiple container thefts. Not only have they suffered economic losses, but the reputation they have suffered in the industry has also been lost, even more immeasurable.
Compared with traditional container seals, electronic seals have built-in chips that have unique ID numbers, unique passwords and unmodifiable performance, making it impossible for others to make electronic seals with the same ID number. The use of RFID electronic seals can more efficiently, accurately and safely control the status of each link in the transportation process of the container, and through the wireless intelligent mobile terminal with the function of reading and writing RFID, the terminal device can firstly realize the automatic acquisition of the container. The data in the electronic label not only facilitates the operation of the front staff, but also ensures the accuracy and authenticity of the data; secondly, realizes the data communication between the front staff and the rear management system anytime and anywhere, and further performs unified data processing and background management Personnel and cargo owners can monitor the cargo transportation process in real time, which greatly strengthens the strength of container management and guarantees the safety of the entire transportation process.
Second, the system architecture
From the perspective of application, the container electronic seal management system can be divided into five components: smart mobile terminal application, electronic seal management center, system intermediate application service, background system management platform, and information service platform.
The intelligent mobile terminal application part mainly refers to the various users in the front who use intelligent terminal equipment to perform operations such as information query, information collection, and status modification of the container to achieve business needs. It mainly includes mobile terminal hardware, a secure wireless access network, network equipment set up with the wireless access network, and authentication equipment required for a secure access platform. The most important part of this is the smart mobile terminal, which includes software and hardware. It is not only a general term for mobile handheld devices, built-in RFID read-write modules, printing devices and other handheld terminal devices, but also a general term for software systems running on these devices.
The electronic seal management center refers to a one-time seal with an RFID chip, which can store and modify the information of the container inside. The data in the electronic seal can be operated through the intelligent mobile terminal to ensure the accuracy of the information in the electronic seal. The electronic seal part mainly includes two parts: the electronic seal module and the electronic seal management center. The electronic seal module is designed for one-time use, ensuring that the seal will not be replaced or reused under abnormal operation. The electronic seal management center means that before the electronic seal is extracted and used, it is necessary to perform data initialization, data storage registration, inventory planning, and issuance records on the electronic seal in the management center. The electronic seal is in use. The electronic seal management center will provide the back-end management platform with data support about the real-time information in the seal.
System intermediate application service is an application service that provides requested services for mobile terminals. It consists of middleware services and hardware servers. Smart mobile terminals will directly communicate with the intermediate application services after accessing through the wireless network. The intermediate services are based on the front-end data. After requesting and analyzing the data, it is connected with the back-end system or other business systems, and then the feedback result data is sent back to the front-end, which is a bridge between the front-end and the back-end.
The back-end management platform includes data center, system management, interface management, and monitoring platform. All business data collected by the system and basic system data will be stored in the database of the data center. System management is used to realize the management of container electronic seals. The user, department, authority, equipment, log and other management of the system, users can customize configuration. Interface management is responsible for all external data services or external connection to other system interfaces. The system will design the interface management part as a unified and universal interface management method, so that the connection between this system and other systems can be flexibly configured. Thereby reducing the construction cost of the system. The monitoring platform still uses terminal equipment to collect the GPS coordinate information of the meeting and expand the application to better supervise the people and goods on the scene in front.
The information service platform is based on business needs, sharing some data, providing a unified data exchange platform, and publishing data. Through the Internet, customs, public security, inspection, quarantine, port areas, shipping companies, logistics companies, consignees and consignees can share hierarchical information through the information service platform, and users can also use the information service platform to customize some business information or other Value-added services. The information service platform releases the latest business data, industry information and other services to the personal mobile phones of various users through SMS platforms and the Internet to provide convenient and efficient information services.
Three, system function
3.1. Electronic seal management subsystem
The electronic seal management subsystem is a functional module for unified management of electronic seals. It monitors, maintains, and manages the entire process from the production of electronic seals and the storage operation to the end of a transportation task of electronic seals. . And provide data support on the basic information and status of electronic seals for the business process of container transportation. The electronic seal management subsystem is composed of several modules including warehousing registration, issuance, status tracking, and data statistics.
3.2. Smart mobile terminal subsystem
The intelligent mobile terminal reads and writes the information in the electronic seal, and sends the data to the background to obtain detailed information, so as to realize the various business needs of the transportation driver, port container inspector, and container manager during the container transportation process, and guarantee the electronic The state of the lead seal during transportation is true and accurate.
Smart mobile terminal users first log in to the system with their own account and password by connecting to the VPN network. The background service will automatically verify the legitimacy and authority of the user, thereby loading the software function modules that can be operated.
The system login first verifies whether the user identity and password are correct, and then compares the software version of the terminal system in the background. If a new version is found, the terminal software will be automatically upgraded. After the upgrade is completed, the terminal system will be automatically logged in.
After logging in, you will enter the main interface of the container electronic seal system. The main interface will display the functional modules of the logged-in user, including driver operations, terminal operations, other operations, information operations, advanced operations, system settings, etc. Entering the system settings, users can personalize the terminal software system, configure external devices, modify network connections, obtain basic data, dictionary data, and other operations.
If the on-site network fails and cannot access the background service, the user can log in offline, and the business operation can still be performed after logging in to the system. The business data generated by the operation will be temporarily stored on the terminal device. When the network returns to normal, the system will automatically upload it The data is sent, and the data is unified with the back-end data center.
3.3. Information Service Platform System
The information service platform is a relatively independent Web information service system running on the Internet of Things. It mainly includes information publishing, shared information query, early warning information subscription, and third-party business data exchange. It sets up a security isolation device with the internal network of the system, thereby ensuring that the data of the main business system will not be leaked. After the security isolation process, the system can publish the internal data to the external network service according to the demand, and provide data support to the outside. .
3.4. System management platform subsystem
In order to ensure the normal and smooth operation of the container electronic seal system, a management system must be provided to assist. It mainly completes the management of users, permissions, handheld devices, logs, information forwarding and software upgrade management of handheld systems for various business applications, completes various information query statistics, and actively monitors the status of existing systems. It is a container electronic seal An indispensable assistance system for the system.
4. Introduction of main equipment
4.1 Electronic seal
The electronic lead seal for the container has a built-in RFID module, which forms an electrical circuit inside, and is enclosed by engineering plastics outside. The screw is automatically disconnected after the steel rope is locked. Without destroying the appearance and performance, the electronic lead seal cannot be opened with tools, such as destructively opening the lead seal. Performance and appearance cannot be restored. The size, size, appearance, logo, etc. can be customized according to customer needs and specifications.
Figure 1: Example of container electronic seal
4.2 Smart IoT data collection handheld terminal
The handheld terminal for data collection of electronic seals for containers is required to have industrial-grade standards and excellent reading performance.
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