Magnetic-induction liquid-level monitor based on CAN bus

The invention relates to a magnetic-induction liquid-level monitor based on a CAN bus. The magnetic-induction liquid-level monitor is characterized by comprising a cylindrical shell and an electronic control device, a spring is arranged on the inner wall of the top end of the cylindrical shell, a float is arranged at the bottom end of the spring, a magnet is installed in the float, and the electronic control device comprises an MCU module, a power supply module, a Hall sensor, a CAN module and an acousto-optic alarm module. The MCU module is connected with the Hall sensor and realizes the measurement of the liquid level by the magnet. The MCU module and the acousto-optic alarm module are connected to achieve the sound and light alarm function, the MCU module and the CAN module are connected to the monitoring center through the CAN bus to monitor the data transmission. The magnetic-induction liquid-level monitor detects the magnet in the float through the Hall sensor, realizes the accurate monitoring function of the liquid level, the abnormal condition alarming function, connects to the monitoring center through the CAN bus and transmits the monitoring data, and the supervisor can deal with the abnormal situation quickly and ensure the normal operation of the industrial production.