| 摘要 |
PURPOSE: A controlling device for conversion in order of an image channel in a wireless camera system is provided to increase an observation capacity as converting on-the-spot situations of an area for being observed in order, without performing another manual operations to change channels, by outputting an image signal of a corresponding channel at regular time intervals as selecting wireless cameras. CONSTITUTION: A controlling device for conversion in order of an image channel in a wireless camera system comprises many CCD(Charge Coupled Device) cameras, RF(Radio Frequency) transmitting modules according to each channel, an RF receiving module(30), a video IF(Intermediate Frequency) circuit(33)/an audio IF circuit(34), and a micom(31). The RF transmitting modules modulate and output audio signals and video signals outputted from the CCD cameras to RF signals of other different frequency bands. The RF receiving module receives all delivery signals of the RF transmitting modules. The video IF circuit/the audio IF circuit convert the RF signals of the RF receiving modules into IF frequency signals, and output the video/the audio signals. The micom applies a control signal for orderly converting all received channels at regular time intervals, according as an automatic scanning key of a key inputter(32) is inputted, to the RF receiving module.
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