The feasibility of the first chapter of the project
Looking at any country in the world, the development of the military will undoubtedly not rely on information technology as a support point, and develop and grow in combination with itself. Regardless of the military unit, the informatization construction work centered on the development and utilization of information resources has been included in the agenda of army building. The new military revolution centered on information technology is causing profound changes in the military field. The essence of this revolution is the transformation of the mechanized military form of industrial society into the informationized military form of the information society. Along with this historic and dramatic transformation, the informatization of the military has gradually become an important means of accelerating the modernization of the military, and it has also become an important research component of the modernization of the military.
RFID (Radio Frequency Identification) technology is an automated identification technology that matured from the 1980s. It has its own immeasurable advantages over other identification technologies such as bar code. It stores a large amount of information and stores it. The content can be dynamically changed, the target distance can be read farther, and multiple targets can be identified at the same time. Its automatic and real-time recognition ability is especially suitable for the military management requirements of personnel for vehicles, vehicles and ordnance, and materials.
According to the national army, the most representative use of RFID technology is the US military. The US Department of Defense's application of RFID technology stems from the needs of modern warfare: In the 1991 Gulf War, the United States shipped about 40,000 containers to the Middle East, but due to unclear identification, more than 20,000 containers had to be reopened and registered. , package and re-invest in the transportation system. After the war, more than 8,000 opened containers were not used. Later, the US military estimated that if RFID technology was used to track the whereabouts of logistics and obtain a list of contents of the container, it would save the Ministry of Defense about $2 billion in expenses. After the Gulf War, the US military provided a quick and accurate logistic support for combat troops in solving the serious problems in the process of requesting, transporting, distributing, etc., and proposed an asset visualization management plan to achieve assets in logistics support. Highly transparent. The application of RFID technology makes it possible for the US military to realize the logistical material transparency, and provides convenient and flexible solutions for automatically obtaining information on storage, in transit, and materials used for visualization.
RFID technology has been widely used by the US military in the field of military logistics support, such as the specific item search system, the on-the-spot material visualization management system, the individual electronic medical record card, the ordnance armament material storage and management, etc., which has greatly reformed the traditional logistics tracking method. By adopting RFID technology, the average logistics replenishment time of the US military has been greatly shortened.
The information management of armaments and other military materials is precisely the weak link of our army's overall information construction. Most of the warehouse management relies mainly on manual operations, which can't adapt well to the requirements of future war for fast and accurate guarantee. Therefore, fully utilize RFID technology to realize ordnance. The automatic management of military materials is the key practical element of our military in the field of logistics informationization. It is also the visualization of the whole process of material security in the future, the establishment of a “precise” battlefield material security system, and the realization of the scientific and rapid basis for material security decision-making.
Case: The 2003 Iraq War, saving billions of dollars for the US military
In the 2003 Iraq war, the US and British coalitions used RFID technology to build a visual logistics network, which made the US military's logistics supply capacity unprecedented. The US military can easily grasp the real-time information of all logistics supplies. The British army also uses this network. , up to 90% of the logistics materials can be efficiently delivered to the front line. This is a far cry from the situation in the 1990 Gulf War.
In this Gulf War, the US military obtained real-time access to logistical supplies in the assembly points of Saudi Arabia, Kuwait, Turkey, the United Arab Emirates, Qatar and Yemen. In combat, the US military's logistics supply line also uses mobile RFID readers to ensure that the replenishment to the front line can arrive on time, and the use of automatic identification technology to shorten the time in the transfer of materials and inventory, the benefits of logistics replenishment fully use.
Figure 1: Radio Frequency Identification Equipment (fixed and handheld readers) used by the US-British coalition
Figure 2 US military containers are equipped with radio frequency identification reading devices at various ports, airports, railways, and logistics centers to collect dynamic data for logistics supply.
Figure 3: During the process of shipping and replenishing supplies from the material assembly point to the front line, a mobile RFID reader is installed along the line. Click here to lose.
Figure 4 Radio frequency identification tag installed on the helicopter
Figure 5 Helicopter transport
The US Department of Defense continues to use radio frequency identification technology, which has produced great utility in military logistics and helped the US military to complete the following tasks:
※ Increase productivity through automation and limit manual intervention to avoid human error;
※ Achieve complete visualization of the supply chain;
※ Eliminate excess inventory (application for excess supplies);
※ Get fast logistics management and get real-time supply chain dynamic data;
※ Accelerate the transportation of logistics materials from the factory to the foxhole and improve the mastery of transportation;
※ Reduce redundant data entry and improve the correctness of the data;
Chapter 2 Overview of RFID System
The long-distance radio frequency automatic identification system realizes the contactless information transmission through the spatial coupling through the radio frequency signal and realizes the automatic identification of the items under different states (moving, stationary) through the transmitted information, thereby realizing the automatic management of the target.
The system can manage the network according to different management requirements, and realize the networkization of long-distance radio frequency identification.
use. The system's reading equipment uses ultra-high frequency short-wave frequency (transmitting and receiving frequency 902-928MHz) to achieve reliable full-duplex wireless data communication.
The basic principles of RFID management product data
Chapter III System Process
According to the information identified by the system scan, if an irregular operation is found, such as mistaking the firearm equipment belonging to other consecutive teams, the system will alarm.
Chapter IV, System Product Composition
The system product consists of a software system and a hardware system, wherein the software system mainly refers to application software. If a handheld data acquisition device is used, the software system also includes an embedded software part, which is mainly used for information collection, processing and transmission. The hardware system consists of electronic tags, antennas, readers, and PCs for information acquisition, identification, and application software.
Electronic tag: Attached to the identified object to identify the object.
Antenna: used to transmit and receive radio signals;
Reader: Used to collect tag information.
PC: Run the application software.
5.1 Electronic Label
The main considerations for electronic tag selection are:
◎ The actual application and environment of the customer;
◎ read and write distance of the label;
◎ transmission rate;
◎ read and write speed;
◎ working frequency;
◎ Memory and package form.
According to the user's needs, we also refer to the above factors. In order to achieve accurate reading and prevent cross-talking, we choose passive single-frequency electronic tags.
◎ The working frequency of the tag is UHF band, 915M;
◎ The memory of the label adopts the EPC CLASS 1 Gen2 standard;
For the complex situation of monitoring items, special material packaging is applied to the surface of metal objects.
The reader plays a decisive role in the RFID system. The frequency of the reader determines the working frequency band of the RFID system. The power of the reader directly affects the distance of the RFID. Generally speaking, a high frequency tag has a larger reading distance, but it requires a larger electromagnetic wave energy output from the reader. A high frequency tag can be read within a distance of 3 to 8 meters.
The selection principle of the reader is as follows:
◎ High reading rate and high stability;
◎ The RF module and control software of the reader are highly consistent;
◎ Comply with multiple protocols and can read multiple types of labels;
◎ The reader software can be smoothly upgraded according to the development of multiple standards such as EPC;
◎ has a rich interface;
◎ It can realize multi-tag simultaneous reading in the reading and writing area, and has anti-collision function;
◎ Verify error information during reading and writing;
◎ Support TCP/IP protocol, easy to configure and manage through the network.
◎ The current of the matching antenna coil is large enough;
◎ Antenna power matching;
◎ The antenna has sufficient bandwidth to ensure the transmission of carrier signals.
You can also choose a handheld reading and writing device, as shown below:
Read-write protocol: UHF Gen 2.
Card reading distance: 0-2.0 meters