Method for discovering equipment in local area network based on UDP broadcast

The invention discloses a method for discovering equipment in a local area network based on UDP broadcast, which comprises the following steps that: an NVR sends a UDP broadcast message in the local area network, and searches an IPC to be added in the local area network through the sent UDP broadcast message, so that the IPC in the local area network returns IPC equipment information correspondingto the IPC; the NVR receives IPC equipment information returned by the IPC and displays the received IPC equipment information, so that a user can confirm whether to add the IPC corresponding to theIPC equipment information to an equipment management list corresponding to the NVR or not; the NVR receives an addition confirmation instruction triggered by a user, and adds the IPC equipment information to an equipment management list corresponding to the NVR according to the addition confirmation instruction; and the purpose of discovering the IPC equipment to be added in the local area networkby using the UDP broadcast