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Vehicle running recorder

A vehicle driving and recorder technology, applied in vehicle parts, instruments, electric vehicles, etc., can solve the problems of poor versatility of different vehicles, short recording period, long data transmission time, etc., to increase storage period, improve reading speed, The effect of improving efficiency

Inactive Publication Date: 2004-02-11
QIMING INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a driving recorder for vehicles, which overcomes the problems of short recording period, long data transmission time and poor versatility of different vehicles in the existing driving recorder

Method used

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  • Vehicle running recorder
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Embodiment Construction

[0008] according to figure 1 As shown, the MCU uses the W77E58 microcontroller, where the crystal oscillator input and output terminals XTAL1 and XTAL2 of the microcontroller MCU are connected to the 11.0592MHz crystal oscillator circuit through a capacitor, the reset circuit is connected to the reset terminal RESET of the MCU, and the serial ports TX0 and RX0 of the MCU are connected to the The corresponding port of the RS232 interface circuit is connected, and the RF output terminal of the GPS antenna RF is connected to the RF signal input terminal of the GPS module. After the received positioning and status information is processed by the GPS module, the processed signal is transmitted through the sending serial port TX and the receiving serial port. RX is transmitted to the microcontroller MCU through the RS232 interface circuit. After the MCU processes the received signal, it communicates with the host computer through the serial port TX1 and RX1 through the USB interface ...

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Abstract

The vehicle running recorder consists of micro control unit MCU, USB interface, great capacity memory, satellite receiving positioning module, etc. MCU serial port is connected to RS232 interface circuit, GPS antenna to the RF output of the GPS module to receive the positioning and state information and send to serial port TX, the receiving serial port RX to RS232 interface circuit, and MCU processes the received signal before transmitting via USB data bus to upstream computer through USB interface to complete the transmission of real-time position and state information. The GPS technology makes the determination and record of running locus accurate and USB data transmission raises the data transmission and read-out rate to reduce peripheral chip and minimize the product.

Description

Technical field: [0001] The invention discloses a vehicle driving recorder, relates to a recording device for recording vehicle driving states, and belongs to the technical field of vehicle driving data storage. Background technique: [0002] The following problems exist in the existing driving recorder: 1, the memory adopts EEPROM, the storage capacity is small, and the recording period is short. 2. RS232 serial port is used for data transmission, and the transmission time is longer when the data transmission volume is large. 3. There is no voltage protection part, the actual voltage of the vehicle is complicated, the voltage fluctuates greatly, and there is a phenomenon of continuous high voltage, and the power supply part is often burned. 4. The actual voltage of different vehicles is different, and different types of terminals are used for vehicles with different voltages. 5. There are not many vehicle status signals connected. By adding sensors and accessing vehicle s...

Claims

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Application Information

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IPC IPC(8): B60L1/00B60R16/02G06F3/00
Inventor 马振华朱晓玉张宇黄志福秦浩岩
Owner QIMING INFORMATION TECH