It is our urgent mission at present to introduce a concept of a vigilance system for medical devices and to establish the medical devices vigilance regulation in China in strengthening the supervision and administration.

On the basis of study on the Guidance on the operation of the EU vigilance system in the UK, this guidance has been introduced.

The paper introduces the remote vision system s function and technical realization,and expounds the specific application of remote vision system in Qinghai unattended substation with the example.

Tele-video system provided key information for tele-operator about spot video,but tele-video system in-use was limited to passive supervisory of the whole system.

Data association and tracking algorithm for a shipborne infrared surveillance system;

According to the practical need of infrared surveillance system,the infrared radiation feature of missile and predigest model under the background of sea and sky was studied.

According to the practical need of infrared surveillance system, the predigest model of infrared radiation feature of missiles observed directly is erected under the complicated background of sea and sky in this paper.