Accurate cable searching system and method

The invention discloses an accurate cable searching system and method, and relates to the technical field of optical fiber sound wave sensing, the system comprises an optical fiber sound wave sensing host, an optical cable clamp, a vibration generator and an optical cable fiber winding disc, the optical cable clamp is used for fixing any optical cable to be measured at the fiber outlet end of the optical cable fiber winding disc and changing the vibration conduction coefficient of the optical cable; the vibration generator is used for causing vibration to a to-be-measured optical cable located on the optical cable clamp and a to-be-measured optical cable between the optical cable fiber winding disc and the optical cable clamp, and backward Rayleigh scattering light generated by vibration is transmitted to a target optical cable at the fiber inlet end through the optical cable; the optical fiber sound wave sensing host is connected with a target optical cable at the fiber inlet end of the optical cable fiber w