Operating specifications for new warm body dummies

In order to ensure the accuracy of test data and the life of equipment, the operation specification of the new warm body dummy should be formulated in combination with its high-precision sensing, intelligent control and bionic characteristics. The following is the standardized operation process:

1. Preparation before operation

Environmental adaptation

Temperature and humidity control: Adjust the laboratory environment to the target test conditions （such as temperature 20±1℃， humidity 65± 5%RH）。

Space requirements: Ensure that there is no strong airflow around the dummy （recommended distance from the wall/equipment ≥1m）。

Electromagnetic shielding: prevent wireless devices from interfering with sensor signals （such as turning off WiFi, Bluetooth）。

Equipment inspection

Hardware status: Ensure that the heating unit, sensor, and connection cable are not damaged, and the skin surface is clean and free of foreign bodies.

Software calibration: Start the control software to check the temperature baseline of each area （deviation should be less than 0.3℃）。

Power supply safety: Use a power supply with a ground resistance ≤4 ohms. Avoid sharing circuits with other high-power devices.

2. Startup and parameter setting

Bionic model selection

Static test: Select "basal metabolic mode" （e.g., sedentary, metabolic rate 1.2 met）。

Dynamic simulation: Enable "Movement Mode", enter the activity type （such as walking 3 km/h） and duration.

Thermophysiological parameter configuration

Core temperature: Set 36.8±0.2 ° C （simulated hypothalamic regulation）。

Skin temperature partition: 33±0.5 ° C for torso, 30±0.5 ° C for limbs （matching human heat distribution）。

Sweat simulation: Enable the "Wet Management module" and set the sweat rate （e.g. 0.5-1.0g /m²·min）。

Sensor calibration

Blackbody radiation calibration: Verify infrared sensor accuracy with a standard blackbody source （e.g. 35 ° C）。

Contact calibration: Compare the body surface sensor with the standard thermometer （±0.1 ° C）， and return to the factory for maintenance if the error exceeds the standard.

3. Test execution

Dress/environment

Clothing test: Dress the dummy according to the standard dressing process （such as wearing underwear before wearing a coat）， record the number of layers and materials of clothing.

Environmental testing: Place the dummy in a target environment （e.g. a car cabin, a building model） to ensure that there is no direct sunlight or cold source interference.

Data acquisition

Real-time monitoring: Observe the temperature, thermal resistance （Clo）， wet resistance （Ret） and other parameters of each area through the software interface.

Synchronous recording: Use the data logger to synchronize environmental parameters （temperature and humidity, wind speed, radiant heat）。

Dynamic adjustment

Postural changes: Using electric joints to simulate sitting, standing, or arm swings （such as switching every 30 minutes）。

Burst interference: When testing extreme conditions （such as sudden spraying of water mist）， enable "emergency mode" to protect the circuit.

4. Shutdown and maintenance

Cooling process

Gradient cooling: After the test, gradually reduce the heating power （5% every 5 minutes） to avoid sudden cooling damage to the material.

Power off Confirm: After the power is turned off completely, check the residual temperature of the sensor （≤ ambient temperature +2 ° C）。

Cleaning and storage

Surface cleaning: Wipe the surface of the skin with a neutral disinfectant and avoid using alcohol （which may corrode the material）。

Component protection: Apply lubricating silicone grease to joints, and cover sensor ports with dust caps.

Storage environment: Store in a dry place away from light, temperature 15-25℃， humidity ≤ 60%RH.

5. Safety regulations

Electrical safety

Leakage protection: Regularly test the insulation resistance （≥5 MΩ）， and use a power socket with leakage protection function.

Overheat protection: Set the temperature threshold （such as the core temperature > 38℃ automatic power off） to prevent the risk of fire.

Emergency treatment

Sensor failure: When a single sensor fails, the adjacent area data compensation algorithm is enabled.

Skin damage: Stop testing immediately and cover the damage with electrical tape to prevent short circuits.

Fire emergency: equipped with carbon dioxide fire extinguishers, do not use water to extinguish fire （may aggravate circuit damage）。

6. Calibration and verification

Periodic calibration

Monthly calibration: Check the sensor zero drift （if the offset is greater than 0.5 ° C, recalibrate）。

Annual calibration: A third-party laboratory is commissioned for full parameter certification （e.g. ISO 15831）。

Contrast verification

Real person control: Compare data with real subjects every quarter （temperature difference should be ≤0.8℃）。

Peer comparison: Participating in international thermal comfort test comparison projects （e.g. IEA EBC Annex 80）。

7. Data management and compliance

Record keeping

Raw data: Save test videos, environmental parameters, dummy setting parameters （at least 5 years）。

Report format: Prepare test reports in accordance with ASTM F2370 or ISO 15831 standards.

Compliance check

Standard update: Quarterly verification of compliance with the latest national standard （such as China GB/T 18047）。

Audit Trail: Enable software operation logs to record all parameter adjustments and operator information.

Operating tips

Pre-stability of the environment: Before starting the test, open the environment chamber at least 2 hours in advance to stabilize the temperature and humidity.

Sensor protection: Avoid direct hand contact with the sensor probe （sebum may affect accuracy）。

Backup solution: Enable two dummies to run synchronously during critical tests to improve data reliability.

By strictly following the operating specifications, the bionic advantages of the new warm body dummy can be maximized, and high-quality data support for thermal comfort research can be provided.

2025-03-19 16:07