ACC signal acquisition device and method of vehicle-mounted equipment

Abstract

The invention belongs to the field of automobiles and relates to an ACC signal acquisition device of vehicle-mounted equipment. The ACC signal acquisition device comprises an ACC signal sending end and an ACC signal receiving end paired with the ACC signal sending end. The ACC signal sending end is connected with an original ACC of a vehicle through a signal line to obtain original ACC signals of the vehicle, process the ACC signals and send out the ACC signals in a RF signal mode. The ACC signal receiving end is connected with the mounted equipment needing the ACC signals, receives the RF signals, converts the RF signals into level signals, and then transmits the level signals to the mounted equipment. The invention further discloses an ACC signal acquisition method of the vehicle-mounted equipment. The ACC signal acquisition method and device of the vehicle-mounted equipment adopt the RF signals to transmit the ACC state signals, through the scheme, signal synchronization is effective and reliable; by the adoption of the RF wireless transmission signals, long wires do not need to be arranged, so the installation is simple, meanwhile, the wire harness cost is lowered, and the problem that the mounted terminal equipment can not obtain the ACC signals is effectively solved.

Description

technical field [0001] The invention belongs to the field of automobiles, and relates to a method for acquiring and transmitting an ACC signal and an improved technology of a device. Background technique [0002] In some cases, the added car modules, equipment or modified parts cannot obtain the ACC signal due to the installation position or the definition of the body signal line (the general car ignition switch has four gears of START, ON, ACC and LOCK , ACC means that before the car is started, as long as the key is turned to the ACC position, some devices that do not consume much electricity, such as: radios, cigarette lighters, air conditioners, etc., will be powered on. When the car is ignited, it needs A strong current, at this time the ACC bit stops supplying power, and when the car is ignited, it starts to supply power again.), the usual solution is to look for a signal line that can be synchronized with the ACC on the car instead of the actual ACC signal line. It i...

AI Technical Summary

Problems solved by technology

), the usual solution is to look for a signal line nearby that can be synchronized with the ACC on the car, rather than the actual ACC signal line. In this case, the signal is likely to be out of sync; Car ACC signal line, in this case, when the installation location is far away from this signal, it even needs to be obtained from the fuse box, which requires long wiring and installation time, which increases the difficulty of installation

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