Vehicle-mounted mobile radiation safety inspection system and control method thereof

Abstract

The invention discloses a vehicle-mounted mobile radiation safety inspection system which comprises a radiation source, a scanning arm and a detector. The system further comprises a geomagnetic switch which is arranged at an entrance from which a detected object comes into a scanning channel, a first light curtain switch which is arranged at the entrance of the scanning channel and is used for detecting whether the detected object enters and leaves the scanning channel, and a main beam detection switch which is arranged at a main beam position in the downstream direction of the scanning channel and is used for detecting whether the detected object reaches the main beam position. When the geomagnetic switch, the first light curtain switch and the main beam detection switch are triggered in turn, the radiation source is started to prepare a beam outgoing operation. In addition, the invention further relates to a control method of the vehicle-mounted mobile radiation safety inspection system.

Description

technical field [0001] The invention relates to a vehicle-mounted mobile radiation safety inspection system, in particular to a vehicle-mounted mobile radiation safety inspection system in a passive scanning mode. In addition, the invention also relates to a control method of a vehicle-mounted mobile radiation safety inspection system. Background technique [0002] At present, with the sharp increase in trade exchanges between countries in the world and the increasingly severe international security situation, countries are constantly strengthening the cargo security inspection at customs, aviation and border checkpoints. The cargo such as container radiation safety inspection system is used as a private inspection It is a powerful weapon for danger and is the first choice of customs, aviation and border checkpoints in various countries. [0003] The vehicle-mounted mobile radiation safety inspection system is a new type of cargo radiation safety inspection system, which in...

AI Technical Summary

Problems solved by technology

[0006] However, based on the characteristics of the vehicle-mounted mobile radiation safety inspection system, there is no fixed and pre-set scanning channel, so it is impossible to use the light curtain emitter set on one side of the scanning channel and the other side of the scanning channel to connect with the The receiving end relative to the transmitting end mentioned above, that is to say, the light curtain switch cannot be used, but the diffuse reflection switch which is small in size and easy to install

Since the working principle of the diffuse reflection switch is based on the point-based trigger operation, no matter the size of the object, as long as a point enters the detection range of the diffuse reflection switch, the trigger action can be activated, so there is a danger of the driver being mistakenly scanned

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