The use of the real-time monitoring system for cold chain should focus on the following core considerations:
1、 Equipment deployment and calibration
1. Accurate positioning of sensors
Avoid direct sunlight and humid areas, and prioritize deployment in the core temperature zone of goods or dead corners of cold storage airflow to ensure that data reflects the real storage environment. At least 5 monitoring points should be set up for every 100 cubic meters of space, and sensors should be arranged in layers to identify local anomalies in the cold storage.
2. Strict calibration mechanism
Before activation, the accuracy of the sensor must be verified, and the temperature error must be controlled within ± 0.5 ℃; Calibrate once every quarter and keep tamper proof records, in compliance with GSP/GMP standards.
2、 Operation monitoring and response
1. Real time dynamic protection
The system needs to run continuously for 7 x 24 hours with millisecond level data refresh. When the threshold is exceeded, immediately activate the three-level alarm: Level 1 warning (APP pop-up), Level 2 alarm (SMS round call), emergency alarm (sound and light+WeChat strong reminder), with a response delay of ≤ 3 minutes throughout the process.
2. Emergency power outage support
Regularly test the switching efficiency of backup power supply (≤ 15 seconds for food cold storage), and medical equipment must meet a power outage protection of ≥ 72 hours; Normal operation must be maintained within a voltage fluctuation range of ± 10%.
3、 Data Management and Maintenance
1. Full chain traceability
Automatically record parameters such as time, location, temperature, and humidity, and store them in the cloud for at least 1 year. Generate compliant electronic ledger, support one click export of temperature curves and alarm logs for auditing.
2. Periodic maintenance
Clean the condenser fins monthly and check the lubricating oil level of the compressor (maintain the oil level of the sight glass at 1/2-2/3); Verify the airtightness of the door seal (air leakage ≤ 3m ³/h · m), and the cold storage door needs to pass the A4 paper resistance test.
4、 Summary of key points
1. Security redundancy: Adopting dual alarm channels (sound and light+mobile end), cold chain transport vehicles need to be equipped with automatic door opening capture function.
2. Energy efficiency optimization: Identify hot spots and dead corners in cold storage through big data analysis, predict equipment maintenance cycles to reduce failure rates.
3. Cross end collaboration: Open multi platform access permissions for web/app/mini programs, facilitating real-time data verification between carriers and customers.