Water supply system based on standby water outlet pressure sensor

The utility model provides a water supply system based on a standby water outlet pressure sensor. The water supply system comprises a water inlet pipeline, a water pump, a water outlet pipeline, a switching module, a controller and a frequency converter. The water outlet pipeline is provided with a main water outlet pressure sensor and a standby water outlet pressure sensor; the water inlet pipeline communicates with the input end of the water pump, and the output end of the water pump communicates with the water outlet pipeline. The controller is electrically connected with the frequency converter and the first end and the control end of the switching module; the frequency converter is electrically connected with the water pump; the second end of the switching module is electrically connected with the main water outlet pressure sensor, and the third end of the switching module is electrically connected with the standby water outlet pressure sensor. According to the water supply system based on the standby wa