A navigation device and adaptation method for adapting bus and non-bus vehicles

Abstract

The invention relates to navigation equipment adapting to a bus vehicle type and a non-bus vehicle type and an adaptation method thereof. The vehicle-mounted navigation equipment is provided with a bus adaptation module and a single program initiation (SPI) communication port which is connected with an output end of the bus adaptation module. An external rigid line matched with a signal line of the non-bus vehicle type and a bus transceiver matched with a bus of the bus vehicle type can be optionally connected with the bus adaptation module. The method comprises the steps: judging whether a vehicle type is the bus vehicle type or not by the bus adaptation module after carrying out compound judgment on a received external level signal and a bus signal, entering a working mode with corresponding configuration, converting an effective signal into a standardized signal, sending the signal to a navigation host by the SPI communication port, and achieving the purpose that the equipment is adaptive to the vehicle type provided with a bus working mode and a non-bus working mode. The navigation equipment and the method for adapting to the bus vehicle type and the non-bus vehicle type have clear logic management levels, the purpose that one hardware host can have the bus vehicle type and the non-bus vehicle type in a compatible mode can be perfectly achieved, structure is simple, and a control function is strong.

Description

technical field [0001] The invention relates to the field of in-vehicle electronics, in particular to a navigation device for adapting bus and non-bus models and an adapting method thereof. Background technique [0002] There are various configurations and grades of cars. Among them, whether there is a body bus is also an important distinction. For the aftermarket modification market, this is a problem that needs to be faced. For the input of models without bus; for models with bus, these signals are sent to the audio host through CAN bus. Therefore, the ignition, headlight status, reversing start signal, handbrake status, vehicle speed, etc. that are often related to the entertainment system are generally sent to the audio host using level signals. The plan is to develop two models (including software and hardware) respectively. , to match models with and without buses. The series models of many car manufacturers are often the same in terms of installation size, that is, ...

AI Technical Summary

Problems solved by technology

The series models of many car manufacturers are often the same in terms of installation size, that is, they can be installed in them. However, due to the difference in the bus, the navigation supplier will develop two hosts, which will undoubtedly increase the various process costs of new product development. Will lead to the complexity of after-sales maintenance

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