WIFI-based wireless vibrating wire strain collecting device and implementation method thereof

The invention discloses a WIFI-based wireless vibrating wire strain collecting device and an implementation method thereof that are applied to data acquisition of a bridge monitoring system. The WIFI-based wireless vibrating wire strain collecting device is composed of a controller, a power supply module, a high-voltage boosting circuit, a high voltage switch, a signal conditioning circuit, and aWIFI wireless module. The controller receives a data acquisition instruction from an upper computer through the WIFI wireless module and outputs a PWM signal to control the high-voltage boosting circuit to generate a high voltage; the high-voltage boosting circuit loads high voltage excitation to a string wire sensor by the high voltage switch; the string wire sensor carries out vibration under the high voltage excitation and a the frequency signal related with the string wire tension is outputted to the signal conditioning circuit for adjustment; and then the controller carries out capturingcounting on the adjusted f