(I) System Functions: 
1. System Functions 
(1) The system has multiple functions, including personnel management, equipment management, score management, evaluation standard management, and comprehensive extreme fighting assessment (individual or team assessment), close-combat training and evaluation functions, and single-machine training modes. It also has vital signs monitoring functions; (2) Comprehensive Extreme Fighting Assessment Function: Specifically for training and assessment, it can automatically identify individuals and automatically count continuous assessments with different evaluation standards within a set time limit (time can be set, such as 30 seconds) (for example: whip leg + front kick + elbow strike) and other functions. It also has a team assessment function, allowing for team examinations and automatic assessment of team scores; (3) Close-Combat Training and Evaluation Function: Specifically for the training and evaluation needs of nine movements (straight punch, swing punch, hook punch, snap kick, side kick, front kick, side kick, horizontal elbow strike, and front knee strike) in single-soldier close-combat and fighting subjects. It can collect the force value of a single strike, the number of effective strikes, and the maximum strike force value. The software has a continuation function to meet the needs of time-segmented assessments of the nine close-combat movements; (4) The system can select 1-4 electronic evaluation sandbags to be connected to the system, allowing 1-4 people to train or be assessed simultaneously. It can judge individual movements (or preset combination movements) of the assessed personnel based on movement type, gender, and weight, and comprehensively assess the assessed personnel's scores based on multiple movements; (5) Import the name, gender, and weight information of the training or assessment personnel. There are voice prompts during training or assessment, and the system can voice-broadcast the score information after the assessment. Score management allows for querying, exporting, and printing individual or team scores for single or combined movements; (6) Vital Signs Monitoring Function: Through the use of a headband-type monitoring device, it can real-time detect physiological indicators such as heart rate, blood oxygen, and blood pressure, and display the changes in physical fitness data during training through the software interface. It also supports alerts for abnormal changes in physical fitness data, providing objective and accurate data references for physical fitness training monitoring management and functional assessment; 
2. Evaluation Sandbag 
The electric lifting and lowering bracket can be manually/remotely controlled to hang and fix the electronic evaluation sandbag. The sandbag collects the striking force and number of strikes of movements such as straight punches, hook punches, swing punches, snap kicks, side kicks, front kicks, side kicks, horizontal elbow strikes, and front knee strikes at 360 degrees. When the electronic sandbag is struck, the number of times and force value collected are accurate and the state is stable. The multi-layer composite structure of the protective cover of the evaluation electronic sandbag effectively reduces the reaction force, preventing injury; 
3. Weight Collector 
The weight collector is connected to the data display screen and is used for weight information collection and strike data display. It supports the wireless connection of 1-4 data display screens to the computer for display. The data display screen supports single-machine training without a computer; 
4. Vital Signs Detector 
(1) Headband type, tight-fitting and does not hinder training and assessment movements; (2) Uses a wireless connection system to collect the trainee's heart rate, blood oxygen, and blood pressure data and display it on the assessment interface; 
5. Special Protective Gear 
(1) Gloves: Waterproof and wear-resistant surface, inner lining made of multi-layer imitation latex composite molding, strong energy absorption effect, wrap-around Velcro strap for easy and comfortable wear; (2) Knee and Elbow Pads: Waterproof and easy-to-clean fabric, inner lining with strong energy absorption effect, effectively protects knee and elbow joints, wrap-around elastic elastic band buckle, tight and comfortable to wear; (3) Instep Guards: Waterproof and wear-resistant fabric, protective layer with segmented structure laminated plastic plate, impact resistant, with air vents, Velcro fastening for adjustable size, tight and comfortable to wear, reliable protection; (4) Protective Gear Bag: Waterproof and scratch-resistant surface, with classified liner-type partitions, can accommodate special protective gear (6 pairs of special gloves, 6 pairs of special knee pads, 6 pairs of special elbow pads, 6 pairs of special instep guards), with wheels at the bottom for easy carrying; 
(II) Performance Indicators: 
1. Software System 
(1) The outdoor high-brightness all-in-one machine has a domestically produced Zhaoxin CPU motherboard and is pre-installed with a domestically produced Linux operating system. It is used to run the evaluation management software. The outdoor all-in-one machine display screen size is ≥32 inches, brightness ≥2000cd/㎡, meeting the requirements for data display in sunlight. The all-in-one machine also supports external 24V mobile power supply (battery standby working time ≥6 hours) and 220V AC power supply. It is equipped with a touch screen, and the evaluation management software can be directly operated by touch; (2) Data distribution display method: WIFI intranet wireless distribution display, HDMI wired synchronous split-screen display; (3) Wireless communication frequency: 434±10MHZ; (4) Wireless communication distance: ≥150 meters; (5) Wireless communication frequency points: ≥20, a single frequency point can connect 4 electronic sandbags simultaneously; (6) Supports wireless access to vital signs monitors, a single system can connect 4 sets of vital signs monitors simultaneously; 
2. Evaluation Sandbag 
(1) Sandbag material: The inner lining is made of alloy casting, and the buffer layer is made of integral foaming; (2) Sandbag repeated calibration accuracy: The repeated calibration error with a static force of 300 kg is less than 1%. A calibration certificate is provided by a national-recognized professional metrology institution; (3) Sandbag multi-point force measurement error: When hitting the upper, middle, and lower parts of the sandbag with a dynamic impact force of 200 kg, the force measurement error is less than 3%. Repeated hitting, the effective force value deviation is less than 5%, and the fast force collection speed is greater than (or equal to) 10 times/second; (4) Signal collector interface type: 3 RJ45 sensor interfaces; (5) Sandbag installation positioning: Hanging installation on the electric lifting and lowering frame of the sandbag, the bottom of the sandbag is equipped with two sets of multi-directional impact force absorbers for positioning and fixed to the side suspension arm of the sandbag lifting and lowering frame. The bottom of the evaluation sandbag is equipped with a kick-proof protective cover; (6) The sandbag frame is wirelessly remote-controlled electric lifting and lowering, with a lifting and lowering range of 160-190 cm; (7) Evaluation sandbag protective cover material: Thickness 0.75 mm-0.9 mm; Tear strength ≥45N; Peel strength ≥65N; 24-hour hydrolysis resistance; (8) Energy absorption effect of the evaluation sandbag protective cover: 1 kg weight, 0.5M free fall, rebound height ≤5 cm; (9) Sensor accuracy calibrated by a professional metrology calibration institution, measurement uncertainty is less than 1%; (Calibration certificate required); (10) Rated range 500 (±30) kg, maximum range not less than 700 kg; 
3. Weight Collector 
(1) Weight collection range: 0-250KG, maximum error: ≤1 kg; (2) Wireless communication frequency: 434±10MHZ, 2.4-2.5GHZ dual-band; (3) Weight collector power supply method: DC 5V or AC 220V; (4) Data display screen power supply method: AC 220V; (5) Data display screen specifications: 32-inch display screen, resolution 1366*768; (6) Data display software applicable platform: Based on Android system TVs, tablet computers, handheld terminals, etc.; (7) Cycle life: >500 times; Charging time: <5 hours; 
4. Vital Signs Monitor 
(1) Wireless communication frequency: 2.4GHZ band, wireless communication distance greater than 20 meters; (2) Power supply: Built-in rechargeable lithium battery, supports continuous use for more than 8 hours; (3) Uses wireless connection, a single system can connect 4 sets of vital signs monitors simultaneously; (4) Measurement accuracy, blood pressure, heart rate and blood oxygen within ±2% deviation; 
5. Special Protective Gear 
(1) Boxing Gloves 
① Leather: Thickness 0.57-0.63mm; Tear ≥30N; Peel ≥35N; 24H hydrolysis peel ≥75%; Dry rubbing color fastness grade 4; Abrasion resistance 1KG/300; Sewing strength ≥160N; ② Lining: Abrasion resistance color fastness staining ≥3-4; Perspiration resistance color fastness staining acid ≥3-4; Perspiration resistance color fastness staining alkali ≥3-4; Burst strength ≥400N; Water repellent ≥ grade 3; Antibacterial AAA grade; ③ Inner lining: Inner lining surface hardness: Shore A 9°-11°; 
(2) Knee pads, elbow pads 
① Diving fabric: Abrasion resistance color fastness staining ≥3-4; ② Inner lining: Inner lining surface hardness: Shore A 20°-25°; 
(3) Instep guard 
① Leather: Thickness 0.57-0.63mm; Tear ≥30N; Peel ≥35N; 24H hydrolysis peel ≥75%; Dry rubbing color fastness grade 4; Abrasion resistance 1KG/300; Sewing strength ≥160N; ② Lining: Weight ≥220G; Abrasion resistance color fastness staining ≥3-4; Perspiration resistance color fastness staining acid ≥3-4; Perspiration resistance color fastness staining alkali ≥3-4; Burst strength ≥400N; Water repellent ≥ grade 3; Antibacterial AAA grade; 
(4) Protective Gear Bag 
Fabric: Tear ≥35N; Dry rubbing grade 4; Wet rubbing grade 3; Sewing strength ≥200N; 
(5) Identity Identifier 
A single system can connect 4 sets of identity identifiers simultaneously;

6. Environmental Adaptability 
(1) Low temperature operation: The product can operate normally in a -10°C environment; (2) High temperature operation: The product can operate normally in a +50°C environment; (3) Low temperature storage: The product can operate normally when stored at -10°C; (4) High temperature storage: The product can operate normally when stored at +50°C; 
7. Appearance Quality 
(1) The outer surface should be clean and free of rust and dust accumulation; (2) The surface treatment of the sandbag should meet the drawing specifications, and there should be no peeling, damage, uneven color, etc.; (3) Local damage to the sandbag frame paint layer should be repaired, and the color should be basically consistent; (4) The product name and logo silk-screened on the outside of all products should meet the drawing requirements; (5) The anthropomorphic sandbag has an installed protective cover, and the filling material should be uniform and firmly attached; (6) The stitching lines on the surface of the protective gear are straight and uniform, without loose threads, damage, or uneven color defects, and the filling material should be uniform and firmly attached.