| 主权项 |
1. A monitoring device of power line and camera mounted on a vehicle, comprising:
a cable line installed within the vehicle, and electrically connected to a power system of the vehicle to form a first power line; a first camera located at a periphery of the vehicle to capture a first image signal; a radio frequency transmitter having an input end electrically connected to the first camera and an output end electrically connected to the first power line, and the first image signal transmitted to the first power line by the radio frequency transmitter; a screen host located in the vehicle to display the first image signal; and a radio frequency receiver having an input end electrically connected to the first power line and an output end electrically connected to the screen host, and the first power line as a medium receiving the first image signal from the radio frequency transmitter and transmitting the signal to the screen host; whereby the first power line generates carrier wave for the first image signal as a radio frequency signal being transmitted to the wired cable line and then to the screen host; and wherein the radio frequency transmitter has a first circuit module; and the first circuit module has a modulator, a first oscillator, a first operational amplifier, and a first capacitor; the first image signal or a second image signal is modulated into a high frequency signal by the modulator, transmitted to the first oscillator to produce a periodic sinusoidal wave signal, and then amplified by the first operational amplifier to be transmitted to the first capacitor for signal coupling, and finally the signal is transmitted to the first power line. |
