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Vehicle side turning alarming device

An alarm device and technology on the car side, applied in the field of vehicle rollover alarm system, can solve the problems of reducing the reliability of system measurement and increasing the complexity of system software algorithm, and achieve the effect of simple interface circuit

Inactive Publication Date: 2008-03-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lateral acceleration and roll angle are two important factors for evaluating roll. Simply measuring one value not only increases the complexity of the system software algorithm, but also reduces the reliability of system measurement.

Method used

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  • Vehicle side turning alarming device
  • Vehicle side turning alarming device
  • Vehicle side turning alarming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In conjunction with Fig. 1, present embodiment comprises microprocessor module 1, the power supply module 10 that connects microprocessor module 1, keyboard circuit 5, alarm circuit 4, MEMS micro-accelerometer module and roll angle circuit, roll angle circuit includes being installed in automobile The roll angle sensor 2 on the carriage, the MEMS micro-accelerometer module includes the MEMS micro-accelerometer 2 installed on the car compartment, the microprocessor module 1 uses the microprocessor ARM7LPC2131 as the microprocessor of the device, and the MEMS micro-accelerometer 2 uses ADI The dual-axis accelerometer ADIS16006 with the SPI interface of the company, the interface circuit between the dual-axis accelerometer with the SPI interface of ADI and the microprocessor module 1 is shown in Figure 3, and the microprocessor module 1 completes the data transmission by reading and writing the corresponding registers . The roll angle sensor 3 uses the two-dimensional magn...

Embodiment 2

[0048] In conjunction with Figure 4, the basic structure of this embodiment is the same as that of Embodiment 1, the difference is that the MEMS micro-accelerometer 2 adopts the dual-axis accelerometer MXC62020M with the I2C interface of MEMSIC, and the circuit schematic diagram of the dual-axis acceleration interface of the I2C interface of MEMSIC is shown in the figure Shown in 4, other structures are with embodiment 1.

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PUM

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Abstract

The invention provides a vehicle side-turning over alarm device which comprises a microprocessor module, a power supply module connected with the microprocessor module, a keyboard circuit, an alarm circuit, a LED drive display module, a MEMS micro-accelerometer module and a roll angle circuit, wherein an output port of the roll angle circuit is connected with an I / O input port of the microprocessor module, the MEMS micro-accelerometer module is connected with an input interface of the microprocessor module, the roll angle circuit comprises a roll angle sensor arranged on a vehicle carriage, and the MEMS micro-accelerometer module comprises a MEMS micro-accelerometer arranged on the vehicle carriage. The device has the small volume and the high reliability, and can be applied to various new and old vehicles. The device has the obvious action for improving the running safety of the vehicle.

Description

(1) Technical field [0001] The invention relates to a vehicle rollover alarm system, which belongs to the field of automotive electronics. (2) Background technology [0002] With the continuous development of the automobile industry, the driving speed of automobiles has been continuously improved, and the safety of driving has received more and more attention from many aspects. Safety measures such as airbags, automobile anti-lock braking systems (ABS), and tire pressure measurement systems are widely used, which have a significant effect on reducing the accident rate during automobile collisions and braking. But one of the important safety problems of automobiles - rollover has not been taken seriously. According to the U.S. Highway Traffic Safety Administration (NHTSA), the hazard degree of accidents caused by vehicle rollover is second only to accidents caused by vehicle collisions, ranking second. Statistical analysis of traffic accidents in Europe and North America sh...

Claims

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Application Information

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IPC IPC(8): G01M17/007
Inventor 刘晓为刘骁吕炳均张海峰周扬唐佳禄
Owner HARBIN INST OF TECH
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