A vehicle-mounted electronic voice playback system

Abstract

The invention relates to a vehicle-mounted electronic voice playing system. The vehicle-mounted electronic voice playing system is composed of a data emitting end circuit module (1) and a data receiving and processing end circuit module (2), and is characterized in that the data emitting end circuit module (1) is composed of an MCU emitting control circuit (3), an interface circuit (4), a vehicle door switch sensor detection circuit (5), a copilot seat pressure sensor circuit (6), a radio frequency emitting circuit (7) and an emitting end power supply battery (13); the data receiving and processing end circuit module (2) is composed of an MCU receiving control circuit (8), a radio frequency receiving circuit (9), a voice chip circuit (10), a driving circuit (11), a horn (12) and a receiving end power supply battery (14). According to the vehicle-mounted electronic voice playing system, a single-chip microcomputer MCU serves as the core, a special voice chip and a 2.4GHz radio frequency receiving-emitting chip are adopted, a peripheral circuit is simplified, and the vehicle-mounted electronic voice playing system has the advantages of lowering system power consumption, modifying voice conveniently, effectively saving hanging part space, being accurate in voice playing detection control, and being good in use effect.

Description

Technical field: [0001] The invention relates to a vehicle-mounted electronic voice playing system, which belongs to the technical field of automatic control design. Background technique: [0002] The existing vehicle-mounted electronic voice playback system generally requires two systems to complete the entire work process, including the broadcast system and the trigger system. The broadcast system is installed in the pendant in the car, and the trigger system is a simple remote control with one button; Data transmission via Bluetooth. The advantage of this system is that the whole system adopts the bluetooth data transmission method, the transmission data system is stable, the transmission distance is long, and the anti-interference ability is strong. But the disadvantage is that the bluetooth of the system itself is relatively large, and the battery loss is large, and the battery needs to be replaced frequently. The pendant and the pendant of the remote control are also ...

AI Technical Summary

Problems solved by technology

But the disadvantage is that the bluetooth of the system itself is relatively large, and the battery loss is large, and the battery needs to be replaced frequently. The pendant and the pendant of the remote control are also relatively large, and it is difficult to embed in pendants with small pendants such as jade. ; At the same time, the development time period of the software is relatively long, and the relative development cost and production cost are relatively high

The advantage of this method is that it is easy to develop. 38KIR itself has a mature transmitting and receiving module, which is currently widely used in the short-distance wireless market, and has low cost, simple lines, and short development cycle; but its disadvantage is that it needs to be installed on the broadcast system. Holes are opened to facilitate the transmission of wireless signals, which affects the appearance of the broadcast system. At the same time, because the car is a moving object, and the transmission of 38KIR signals has strong directionality, the pendant of the broadcast system is hung on the car. During the driving movement, the pendant swings without direction, which makes the direction of the receiving hole unclear, so that it is difficult for the car to receive the broadcast command sent by the trigger module during driving, which directly affects the application effect of the electronic voice playback system

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