License plate and license plate recognition system monitoring device

The present invention provides a monitoring device and a license plate license plate recognition system, the license plate recognition system comprising: a monitoring device license plates, license plate detection device; the license plate monitoring device comprising: a spring pressure metal sheet, a support member, a control circuit, a switch ; wherein the control circuit is fixed to the plate; said switch in series in the control circuit and an oFF state; said support member secured to said plate; metal sheet provided on the pressure member and the support of the between said spring. License plate and license plate recognition system monitoring device of the present invention has high stability, more rational design, license plate recognition stronger, more timely access to data and so on.