| abstract |
The invention discloses a high-precision water quality PH real-time monitoring system, comprising an acquisition module, a signal processing module, a display module, a power supply module and a wireless transmission module. The acquisition module includes a PH monitoring and amplification module and a temperature sensor. The amplifying module includes a PH electrode output module and a PH amplifying calibration module, the PH amplifying calibration module includes a non-inverting amplifier and a voltage follower; the signal processing module includes a micro-control unit MCU with an ADC module; the wireless transmission module includes RS485 Communication module, data transmission unit DTU and cloud platform. The monitoring system of the invention realizes real-time automatic monitoring of water quality and pH, has functions of automatic calibration and temperature compensation, and adopts hardware calibration to improve calibration efficiency and improve the accuracy of pH monitoring. |