FIELD: surveillance systems.
SUBSTANCE: invention relates to panoramic television surveillance. Device of computer system for television all-round viewing of inner surface of pipes and pipelines of large diameter comprises television camera and computer of operator as server, to which two or more personal computers are connected. Television camera is placed inside the controlled cylindrical pipe or large-diameter pipeline, moves along it along the monorail by means of an electric drive and contains an illuminator, a panoramic lens and a photodetector. Photodetector has the shape of a circular ring and contains on its crystal an "annular" target, made in the form of lines of light-sensitive elements. For photodetector of color television camera at output of panoramic lens is additionally installed infrared cutoff filter, color photodetector consists of a monochrome sensor and covering it with a "circular" target of a mosaic filter, which divides light into blue, yellow, magenta and green components. Into the expansion connector on the motherboard of the server a video board is installed, which is matched along the input / output channels, control and power supply with the server bus, containing the unit for converting the "ring" frame into the "rectangular" frames (UCRR), which input is connected to the output of the RAM unit per frame, and the output is connected to the "network" output, wherein the number of "rectangular" frames corresponds to one current "ring" frame. Photodetector is made on a chip made using CMOS complementary structures. Sensor target consists of photodiode active pixels, as well as an analogue-to-digital converter (ADC) which provides transmission of the active pixel video signal to its "radial" video bus. ADC control for pixels is carried out using a separate "circular" line bus, the total number of which determines the number of lines in the sensor, and the number of "radial" video buses – the number of pixels in each row of the sensor. On the common crystal of the photodetector there are also units performing scanning and formation of the output voltage of the digital video signal of the color image.
EFFECT: technical result consists in improvement of integration of television camera due to implementation of "circular" sensor by CMOS technology and arrangement of electronic "framing" of photodetector on its crystal.
4 cl, 7 dwg
