| 摘要 |
FIELD: information technology, security systems. ^ SUBSTANCE: arrangement of a GSM-network connecting all the property security guard facilities, personal kits and response facilities. The property security guard facility consists of a GSM-receiver/annunciator and controller as well as a satellite navigation unit (GPS-receiver) and a transmitter/receiver unit designed to support hopping frequency receipt and transfer of code parcels. The controller signal inputs are connected to the alarm annunciators outputs with its navigation input connected to the satellite navigation unit output, the data output and input - to the output and input of the transmitter/receiver unit accordingly and the control output - to the inputs of the executor units. The personal kit handled by the owner/authorised user of the property being guarded contains a primary GSM-module (cell phone). The response facility disposed of by a rapid reaction force contains the following components, serially connected: secondary GSM-module (cell phone), data format synchronisation unit and a personal navigator supporting GPS system signals receipt. The personal kit contains a transmitter and a receiver for hopping frequency receipt and transfer of code parcels as well as an antenna switch, a data format conversion controller and a command message generation unit. The controller primary input and output are connected to the output and the data input of the primary GSM-module accordingly. The transmitter modulation input is connected to the controller secondary output. Outputs of the command message generation unit are connected to the control inputs of the transmitter and the primary GSM-module. The transmitter output is connected to the antenna switch input whose output is connected to the controller secondary input via the receiver. ^ EFFECT: enhanced resistance to deliberate interference. ^ 4 dwg |
