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For the military, the mobilization of logistical materials is the most important guarantee for winning the war, especially during the war. However, how to carry out such a huge and complicated task quickly and accurately is a major problem that currently plagues the military. This phenomenon was particularly prominent in the 1991 Gulf War. At that time, the United States shipped about 40,000 containers to the Middle East, but due to unclear markings, more than 20,000 of them had to be reopened, registered, packaged and put into the transportation system again. When the war ended, there were still more than 8,000 opened containers that could not be used.
During the Iraq War, the U.S. military accurately tracked the 40,000 containers sent by the Ministry of Defense to the Gulf by installing radio frequency satellite chips on every container shipped to the Gulf, and tracked the “flow of personnel”, “flow of equipment” and “flow of equipment” throughout the entire process. Material flow” and command and control its reception, distribution and exchange, which makes the supply and management of materials more transparent and greatly improves the effectiveness of guarantees.
The U.S. Department of Defense believes that radio frequency identification has great development potential in container intermodal transportation tracking and inventory tracking. At present, the US Department of Defense has used the system internally to track approximately 400,000 items — everything from containers to buzzers. As a solution for remote container tracking, radio frequency identification will be further widely used in logistics systems in the defense sector.
Radio frequency identification is not only convenient, but also creates considerable economic benefits. At present, the value of materials processed by the U.S. defense material utilization and sales system in the United States each year is more than 6 billion U.S. dollars. It is estimated that after the use of radio frequency identification technology, in addition to saving more than 100 million US dollars each year, about 1 billion US dollars of materials can be used between units with surplus and insufficient materials, which can greatly save purchase and maintenance costs. .
Cinda Huicong based on the actual situation of national defense logistics applications. Two sets of solutions have been worked out:
Specific item finding system
Material visibility system in transit
1. A system for finding specific items. It is composed of a radio frequency card and a handheld radio interrogator. The radio frequency card is attached to the container or pallet and can be used to store and send material information in the container. The radio frequency card is the size of a deck of cards and contains a miniature radio transceiver, a microprocessor and a battery. The microprocessor can store 128,000 characters in a specific database file format, which is equivalent to 300 pages of text data. A radio frequency card is installed on each container or bulky container, and all the information such as the name, quantity, condition, end point, and user of the material contained in the box is stored in the card. The radio frequency card is quite solid, resistant to severe weather and impact, and can be used many times under field conditions. The handheld radio interrogator can send out pulse waves to “activate” the radio frequency card, and can read the information on the card within a distance of more than 90 meters. There are usually hundreds of containers stacked on a container yard. When it is necessary to find a specific item urgently, the interrogator can ask according to the name and code of the item, and the radio frequency card on all the containers with the item will be Respond, and then use the interrogator to activate the buzzer on the radio frequency card, and the operator can follow the sound to find the container. If the sound is outside the search range, it can be approached gradually according to the distance displayed by the rangefinder on the interrogator. The entire search process only takes a few minutes.
2. Material visibility system in transit. That is, the radio frequency card is installed on the container or the whole loading and unloading truck, and the fixed or hand-held interrogator and the microcomputer system are configured at the transportation starting point, the ending point and the intermediate transfer stations. When the transport vehicle passes by, the interrogator reads the information on the card and transmits this information to the computer system for storage and display. The computer system can also transmit material information to the central database via telephone lines or communication satellites, and all levels of logistics personnel and related units can use the database to obtain all material information in transit in time. The system can provide communication and tracking capabilities. The equipped microcomputer can display a rolling map. The driver can determine exactly where he is at any time, and can receive and send e-mails. The logistics commander can know the location of the vehicle in time, track the driving route and communicate with Drivers contact, direct the accurate and timely flow and transportation of battlefield security assets, which can provide drivers in transportation with the actual location of the security object, the best route to choose, road conditions, possible threats, concealed places, and the next time. Gather information such as place and time. So as to realize the real-time monitoring of the progress of the transportation support force and improve the efficiency of vehicle utilization.
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