The warning system comprises an MCU and a DSP which are installed on a vehicle machine PCB, the MCU is in communication connection with the DSP, the input end of the MCU is in communication connection with a CAN transceiver, and the input end of the DSP is in communication connection with a loudspeaker; the CAN transceiver is used for acquiring current vehicle information, analyzing the current vehicle information through a CAN protocol and sending the analyzed current vehicle information to the MCU; the MCU is used for receiving the information sent by the CAN transceiver and judging whether a triggering condition for triggering the low-speed pedestrian warning sound is met or not, and if the triggering condition is met, the information is sent to the DSP; and the DSP is used for receiving the information sent by the MCU, calling the audio data stored in the MCU, synthesizing the low-speed pedestrian warning sound, and driving the loudspeaker to make a sound by using the synthesized low-speed pedestrian warning sound through a power amplifier. The device is small in occupied space, saves cost, and can effectively improve the reuse rate of the vehicle-mounted information entertainment product.
本发明公开了一种车机集成低速行人警示音的警示系统及方法,包括分别安装在车机PCB板上的MCU和DSP,MCU与DSP通信连接,MCU的输入端通信连接有CAN收发器,DSP的输入端通信连接有扬声器;CAN收发器,用于获取当前车辆信息,并通过CAN协议解析当前车辆信息,将解析后的当前车辆信息发送给MCU;MCU,用于接收CAN收发器发送的信息,并判断是否满足触发低速行人警示音的触发条件,如果满足则向DSP发送信息;DSP,用于接收MCU发送的信息,调用存储在MCU中的音频数据,并合成低速行人警示音,将合成后的低速行人警示音通过功放驱动扬声器发声。本发明占用空间小,节约了成本,能有效提高车机复用率。
Warning system and method with low-speed pedestrian warning sound integrated in vehicle machine
一种车机集成低速行人警示音的警示系统及方法
13.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
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