Bioreactor Data Control System

AbstractBioreactor Data Control SystemAdopting Siemens PLC control, including upper computer program, server-side program, B-end (browser) program, and C-end (PC) program. The server-side program uploads real-time data to the SQL database during system runtime, and performs data queries and other operations on the WeChat mini program through API interfaces.

Technical characteristics:

1Precise temperature control：Using PID assisted scripting to dynamically control the current of the heating package, through program training or long-term system operation, the system will intelligently modify PID parameters and control parameters in the script, further improving temperature control accuracy. Tested temperature controlAccuracy reaches 0.1 ℃ instead of± 0.1 ℃ (equivalent to±0.05℃）Note: The temperature control results shown in the following figure were obtained in the experiment without cooling water. If supplemented with circulating water cooling, the temperature control results will also be further improved.

2. The server communicates through TCP/IP and connects to the lower computer program to read real-time reactor data, including temperature, pH value, DO value, motor speed, and gas (CO)₂And O₂）Record parameters such as the flow rate of the quality flowmeter and the actual material volume of the variable frequency feeding peristaltic pump onto the enterprise data server.

3. Real time sharing of data recorded in the data server to the B or C end through API interface.

4. Realize remote and real-time querying of reactor data through API interfaces and WeChat mini programs.

5. Main hardware configuration:

5.1 Siemens 200SMARTPLC

5.2 Heating Package with Controllable Silicon Control

5.3 Variable frequency peristaltic pump (Jiehengru dynamic pump)

5.4 Panasonic servo motor

5.5 Dake transmitter

5.6 MCGS Screen (Pro)