| 摘要 |
The invention relates to a surveillance system wherein a localisation terminal TL and a surveillance terminal co-operate. Each terminal TL comprises: means for the acquisition M1 L of a localisation message; communication means MRL-ARL; and control means MCL for connecting the acquisition means and the communication means in response to an activation signal. Said terminal also comprises a co-ordination body MCL for automatically producing the activation signal, the control means being activated if, and only if, the activation signal is present. |
