| 摘要 |
FIELD: information technologies. ^ SUBSTANCE: system comprises a basic transceiving station 1 and one or more external transceiving stations 2. The basic transceiving station 1 includes a control panel 3, a control unit 4, a coding unit 5, a transceiver 6 with an antenna, to the receiving input of which the following serially connected components are connected - a low pass filter 7, a demodulator 8, an analog-to-digital converter 9, a memory unit 10, a digital-to-analog converter 11, a shaper 12 of a full television signal and a unit 13 of video monitoring devices, a frequency selector 14, connected between the output of the low pass filter 7 and the synchronisation input of the control unit 4 and a supply unit 15, and the external transceiving station 2 comprises a control unit 16, a switchboard 17, to the inputs of which one or more video cameras 18 are connected, and to the output - serially connected low pass filter 19, an analog-to-digital converter 20, a memory unit 21, a digital-to-analog converter 22, a modulator 23 and a transceiver 24 with an antenna, a decoding unit 25, connected between the receiving input of the transceiver 24 and appropriate inputs of the control unit 16, and also a video recorder 26, a programmable timer 27 and a supply unit 28. ^ EFFECT: provision of a video surveillance system with image transfer along narrow-band communication channels. ^ 2 cl, 2 dwg |
