Video signal network damage simulation device, system and method

The invention discloses a video signal network damage simulation device, system and method. The device comprises a communication connection module for receiving an original video data message from a network camera simulation unit and sending the video data message with the damage to a detected NVR; an address configuration module for configuring information of the network camera simulation unit and the detected NVR; a damage parameter setting module for setting a network signal damage type and a network signal damage parameter; a protocol analysis module for analyzing the message received by the communication connection module and judging the message type, and adding the damage in the video data message according to the parameter configured by the damage parameter setting module. Through the adoption of the device, system and method disclosed by the invention, the damage type and the damage parameter can be set, and the damage is added in the video data message to simulate the network damage; the problem that the damage type and the damage parameter of the communication network signal cannot be freely set in the prior art is solved, and the truth and the flexibility of the simulation network signal are improved.