Automatic warning and breaking system for vehicle

• US 7,990,256 B2
• Filed: 10/30/2008
• Issued: 08/02/2011
• Est. Priority Date: 05/06/2008
• Status: Expired due to Fees

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Chen, Ga-Lane
• Primary Examiner(s): Hofsass; Jeffery
• Application Number:
  US12/261,300
• Publication Number:
  US 20090278675A1
• Time in Patent Office: 1,006 Days
• Field of Search: 340/453, 340/435, 340/436, 340/438
• US Class Current: 340/435
• CPC Class Codes: B60Q 9/008 for anti-collision purposes
• CPC Class Codes: B60T 17/221 Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems hydraulic pressure systems in general F15B19/00, F15B21/04; testing structures or apparatus G01M
• CPC Class Codes: B60T 7/22 initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle , or by means of contactless obstacle detectors mounted on the vehicle
• CPC Class Codes: G08G 1/16 Anti-collision systems road vehicle drive control systems for predicting or avoiding probable or impending collision otherwise than by control of a particular sub-unit B60W30/08
• CPC Class Codes: G08G 1/205 Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental

Abstract

An automatic warning and breaking system for a vehicle, includes a plurality of cameras, a motion sensor, a data process unit, an alarm unit, a control unit and an adjustor unit. The cameras are for capturing images of objects inside and outside of the vehicle. The motion sensor unit includes at least an acceleration sensor and a gyro sensor, configured for sensing motion of the vehicle. The data process unit is electrically connected to the cameras and the motion sensor unit, configured for processing data from the respective cameras and the motion sensor unit. The alarm unit is connected to the data process unit, configured for giving a warning signal if a data processing result is unsafe. The control unit is configured for generating a control signal based on the warning signal. The adjustor unit is configured for adjusting a break unit of the vehicle based on the control signal.

Claims

1. An automatic warning and breaking system for a vehicle, comprising:

a plurality of cameras for capturing images of objects inside and outside of the vehicle;

a motion sensor unit comprising at least an acceleration sensor and a gyro sensor, configured for sensing motion of the vehicle, the acceleration sensor comprising a substrate, a mass and four resistors, the mass and the four resistors being arranged in a diaphragm on the substrate, at least two of the four resistors being piezoelectric resistors, and the four resistors being connected to each other to form a Wheatstone bridge;

a data process unit, electrically connected to the cameras and the motion sensor unit, configured for processing data from the respective cameras and the motion sensor unit;

an alarm unit, connected to the data process unit, configured for generating a warning signal for the driver of the vehicle if the data process unit detects unsafe driving conditions;

a control unit configured for generating a control signal based on the warning signal;

a break unit; and

an adjustor unit, connected to the break unit, configured for applying an adjusting force on the break unit based on the control signal of the control unit.

2. The system of claim 1, further comprising a display for displaying data processing result by the data process unit.

3. The system of claim 1, wherein each of the cameras has an IR-pass filter with wavelength in a range from 850 nm to 1000 nm.

4. The system of claim 1, wherein all of the four resistors are piezoelectric resistors.

5. The system of claim 1, wherein two of the four resistors are piezoelectric resistors;

one of the other two resistors is an adjustable resistor, and the other one is a constant resistor.

6. The system of claim 1, wherein the alarm unit comprises a buzzer, an emergency light and a wireless communication equipment.