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1. Background and system introduction
Military physical training and appraisal standards are the common basic requirements of soldiers of different services and arms, and they are also an important prerequisite for completing their duties. But for a long time, the difficulty of multi-person training and the cumbersome multi-person assessment have been a difficult and long-standing problem.
Based on this, the military physical training assessment system using RFID technology solves the problems of simultaneous training, assessment timing, lap counting, and counting of multiple people in running subjects such as 20 kilometers, 5 kilometers, 3000 meters, 5000 meters, and 400 meters obstacle races. When the sports timing chip tag carried by the training examiner passes the timing coil antenna, the timing coil antenna sends the received data signal of the RFID timing chip tag to the timing reader/writer connected to it, and the timing reader/writer records the current time And the related information of the timing chip label, that is, complete timing, lap counting, and counting functions. Competition results can be displayed in real time, and training organizers can view, edit, and print the results through the timing system software installed on the computer.
1. System content
Carry out regular inspections and evaluations of the military’s physical health status;
Provide scientific training plan for military fitness training;
Conduct intelligent appraisal and evaluation of military fitness training effects;
Provide scientific fitness exercise prescriptions for military personnel;
Establish a database for the physical fitness assessment of the entire army.
2. System composition and characteristics
Background data processing middleware;
Visual entry and display module of personnel information;
Data storage, statistics, and export modules;
Data entry, including military name, gender, age, position number and other information;
Competition grouping and competition method, you can set the number of laps of the competition;
Data saving statistics export function.
3. System hardware composition and products
Motion timing system reader (trigger reading and writing integrated reader)
Sports timing chip (electronic label)
125K ground induction coil antenna (low frequency cable antenna)
Operating system server platform composition (sports timing lap counting system software)
Whenever a soldier carries a dual-frequency electronic tag through the timing coil on the runway, the 125K low-frequency activation antenna can immediately activate the dual-frequency electronic tag information, and the dual-frequency electronic tag actively sends data to nearby readers in real time, and the reader will read it again The received card data is uploaded to the connected computer, and the computer obtains the relevant information of the athletes and records the corresponding time when passing, and uses special software to perform a series of processing on the information. The start time of running can be collected by the “timing start” button drawn by the reader and uploaded to the computer back-end system software. The back-end system software corresponds the collected start time and card information with the corresponding athlete information, and counts the competition situation, so as to realize the running status. The purpose of automatic project timing.
The system lays a set of 125K ground-coil antennas at the end for the sports lap counting system.
When the dual-frequency sports timing chip tag carried by the military passes the timing carpet antenna, the carpet antenna sends the response signal of the received RFID tag to the reading head connected to it, and the reading head records the current time and related information of the tag, and it is complete Timing function. Competition results can be displayed in real time, and referees or training organizers can view, edit, and print the results through the timing system software installed on the computer.
Four, system advantages
High real-time: Once the tag in the field is triggered, the data will be uploaded immediately, and the software will process the timing information and statistics and save the time ranking information in the database;
Strong anti-interference: The human body, metal, dust, and humidity will not cause any impact on the system, and the robustness of the product has been strictly tested;
Convenient installation of equipment: The convenience of installation is fully considered during product design. 125K low-frequency and 2.45G dual-frequency integrated reading realizes accurate timing requirements. No other equipment is required. Card issuance and software can be used to realize mid- and long-distance running lap counting. application;
No crosstalk event occurs: When high-power microwave equipment of the same frequency or different frequencies is used at the same time, the product will flexibly hop frequency to avoid interference sources;
Large data capacity: The card reader in the system uses the 2.45G frequency band as the main channel for data circulation, and the data communication rate is 2Mbits/S;
Simultaneous recognition of multiple tags: each reader can recognize 200 cards in the reader area at the same time, no collision and no crosstalk;
Strong EMI and EMS capabilities, card transmission power is one-thousandth of the mobile phone transmission power, green and no danger of electromagnetic wave radiation. Will not conflict with Bluetooth, 802.11, and wireless local road networks;
Low power consumption and long life: The electronic tag will only send data when it enters the ground sensing coil trigger area. When it does not enter the ground sensing coil area or stays in the same ground sensing coil area for a long time, the electronic tag is in a dormant state, which greatly reduces Improve the power consumption of the electronic tag and extend the service life of the battery;
Five, system hardware product introduction
Electronic smart timing host
Adopt dual frequency technology, low frequency trigger, high frequency receive data, improve timing accuracy and test number
The host can store 200,000 pieces of data
Support GPS time synchronization, 4G data upload
The host can trigger the timing by electronic command, the trigger distance is 1000 meters in the open environment
The host supports simultaneous testing of 5 items to improve testing efficiency
The host’s own battery supports 12 hours of continuous work
The timing chip adopts a low-power solution, and there is no need to replace the battery within 1 year
High-speed 200km/h can still be accurately measured
Ethernet interface to synchronize time and data transmission
Water-proof, pressure-proof, dust-proof, dual-lock shell design
Timing chip label
Recognition distance: 0 ~ 100 meters adjustable
Recognition speed: 200 km/h
Recognition ability: 200 frames per second anti-collision performance
Recognition method: omnidirectional recognition
Variable gain: 0～3 levels can be selected on demand
Working frequency: 2.45GHz, 125KHz
Communication rate: 250K
Communication mechanism: Based on HDLC time division multiple access and synchronous communication mechanism
Anti-interference: channel isolation technology, multiple devices do not interfere with each other
Security: Encrypted calculation and security authentication to prevent link detection
Power consumption standard: The average working power is microwatts
Service life: 1.5 years
Voltage detection: Low voltage can be warned by wireless or buzzer at the same time
Packaging characteristics: ABS+PC material, resistant to high-strength drop and vibration
Environmental characteristics: Working temperature -40℃ ～+85℃ Working humidity <95%
Reliability: Waterproof and dustproof, meeting the requirements of industrial environment
Appearance: Binaural Square
Size: 40×36×12 mm
Weight: 12g
Installation method: Add watch strap to wear
Timing carpet/induction coil
1) The dual-frequency motion timing induction coil needs to be connected to the electronic smart timing host to complete the timing function. When the timing induction coil receives the response signal from the dual-frequency timing chip tag, the reading head records the current time and the tag ID number. The timing induction coil can be used in various environments and is waterproof, and can be used for running, cycling, and ice and snow sports; the carpet is quite strong and durable.
2) The ground induction coil contains an independent induction loop (125kHz to activate and wake up the tag) and a receiving loop (2.45G to receive the tag response signal). Sometimes the resonant frequency of the loop will be affected by surrounding metal objects (such as reinforced concrete, water pipes, etc.), thereby affecting the reading distance. For this reason, a special auto-tuning circuit is included in the reading head to minimize this effect.
Six, successful cases
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