| 摘要 |
The invention relates to a wireless high-technology alarm system providing telecontrol and telewarning possibilities via cellular telephony means (GSM). The invented device is composed of three parts: the alarm system (SECURITY ALARM 2000 (air block) (EMC CERTIFICATION ref. No 1999848198/1999.01.06); the electronic board (fig.1) used for telecontrol and telewarning purposes in case of forcing; the GSM wich, along with the electronic board, constitutes a complete telecontrol an telewarning system. The advantages of the invention are that the telecontrol is triggered from whatever point covered by the mobile telephone network; the device may be handled by up to 250 users, the calls of which are stored on the GSM; the device recognizes the incoming call numbers and executes orders solely from call numbers stored on the Nokia telephone device, any other call numbers being rejected; the device is actuated or deactivated by free-charge calls sent by the users; telewarning is achieved by outgoing calls sent to the main user, each time the area is forced. |
