CN103953251A - Electric vehicle electric electric vehicle window anti-pinch device based on cameras - Google Patents

Abstract

The invention discloses a camera-based anti-pinch device for electric vehicle windows of automobiles, comprising a camera, a processor, and an LCD display; the camera is arranged on one side of the window frame of each window; the camera collects The image data is sent to the processor; the LCD display screen is placed on the top of the instrument panel to display the image in each window area captured by the camera; the processor is connected to the window button, when the processor receives the window After the window closing instruction of the button, first judge whether there is a stationary or moving object in the window area through the image data transmitted by the camera; if there is a stationary or moving object in the window area, the processor does not send an instruction to the window motor, The window does not make any action; the invention can accurately identify stationary or moving objects blocked in the window closing area before and during the closing process of the window, and stop closing the window in time to prevent the window from being pinched.

Description

A camera-based anti-pinch device for automobile electric windows

technical field

The invention relates to an improvement of an anti-pinch device for an electric window, in particular to a device that can accurately identify stationary or moving objects blocked in the window closing area before and during the closing process of the window, and stop closing in time Camera-based anti-trap device for automotive power windows to prevent window pinching.

Background technique

In order to increase the comfort of the car, many cars are equipped with electric windows, which are very convenient to operate. However, when the hands or other objects of the driver and passengers stick out of the window, if the window button is misoperated, it is easy to be pinched by the closing window, and even life-threatening. For safety reasons, many vehicles now have electric anti-pinch windows.

Current electric anti-pinch windows mainly adopt two technologies. One is the speed detection protection method, which detects the speed of the window motor through the Hall current sensor. When the window is closed, the moment the window glass touches an object, the deceleration information of the window motor will be detected and the action of stopping the window motor will be executed. This method is to deal with the object when it has touched the window glass, or even in the state of being clamped. There is a hysteresis, and in many cases the clamped object has been slightly injured.

The other is the infrared detection protection method, which detects whether there is an object in the designated area through an infrared sensing device. This method can implement object detection without touching the object, and stop the operation of the window motor in advance. However, infrared detection is susceptible to interference from various heat sources, sunlight sources, and radio frequency radiation, which may cause erroneous actions. To this end, we have developed a system that can accurately identify stationary or moving objects blocking the window closing area before and during the closing process of the window, and stop closing the window in time to prevent the window from being pinched. Anti-pinch device for car electric windows with camera.

Contents of the invention

The object of the present invention is to overcome the deficiencies in the prior art and provide a method that can accurately identify stationary or moving objects blocked in the window closing area before and during the closing process of the window, and stop closing the window in time to Camera-based anti-trap device for automotive power windows to prevent window pinching.

In order to achieve the above object, the technical solution adopted in the present invention is: a camera-based automobile electric window anti-pinch device, comprising a camera, a processor, and an LCD display; One side; the image collected by the camera includes the corresponding window area; the image data collected by the camera is sent to the processor; the LCD display is placed on the top of the instrument panel, showing each window captured by the camera The image in the area is convenient for the driver to view; the processor is connected to the window button, and when the processor receives the window closing command from the window button, it first judges whether there is a still image in the window area through the image data transmitted by the camera. or moving objects; if there are stationary or moving objects in the window area, the processor does not send commands to the window motors, and the windows do nothing. the

Preferably, the camera is a wireless miniature infrared camera.

Preferably, the camera-based automobile electric window anti-trap device also includes a buzzer alarm; the buzzer alarm is installed on the side of the back of the driver's seat, when the processor receives the window closing button from the window button After the instruction, it is found that the image data transmitted by the camera shows that there is a stationary or moving object in the window area; the controller controls the buzzer alarm to sound an alarm to remind the drivers and passengers.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

The camera-based anti-pinch device for automobile electric windows of the present invention can accurately identify stationary or moving objects blocked in the window closing area before and during the closing of the windows, and stop closing the windows in time to Prevent window pinching.

Description of drawings

Below in conjunction with accompanying drawing, technical solution of the present invention will be further described:

Accompanying drawing 1 is the schematic diagram of the anti-trapping device of automobile electric window based on camera according to the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Accompanying drawing 1 is the anti-pinch device of automobile electric window based on camera according to the present invention, comprises wireless micro-infrared camera, processor, buzzer, LCD display; Described wireless micro-infrared camera is arranged on each window One side of the car window frame; the image collected by the wireless miniature infrared camera includes the corresponding window area; the wireless miniature infrared camera wirelessly transmits the collected image data to the processor; the LCD display is placed on the instrument panel Above, the image in each window area captured by the wireless micro-infrared camera is displayed, which is convenient for the driver to view; the buzzer alarm is installed on the side of the back of the driver's seat, and the signal from the receiving processor sends out an alarm sound , to remind drivers and passengers; the processor is connected to the window button, and when the processor receives the window closing command from the window button, it first judges whether there is stillness or movement in the window area through the image data transmitted by the wireless miniature infrared camera If there is a stationary or moving object in the window area, the processor will not send instructions to the window motor, and the window will not do any action; at the same time, the processor will do the following two tasks: (1) Send a signal to the buzzer The alarm sends out an alarm sound to remind the drivers and passengers; (2) send the image data transmitted by the wireless miniature infrared camera corresponding to the vehicle window area with static or moving objects to the LCD display screen for playback, so that the driver can find the situation conveniently, and Correct it in time; if there are stationary or moving objects in the window area, it will be played according to the serial number of the wireless miniature infrared camera; if there is no stationary or moving object in the window area, the processor will send an instruction to close the window to Window motor, the window motor runs to close the windows.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

The camera-based anti-pinch device for automobile electric windows of the present invention can accurately identify stationary or moving objects blocked in the window closing area before and during the closing of the windows, and stop closing the windows in time to Prevent window pinching.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (3)

1. the anti-clamping device for car power window based on camera, is characterized in that: comprise camera, processor, LCD display; Described camera is arranged on a side of the window frame of automobile of each vehicle window; The image of described camera collection comprises corresponding vehicle window region; The view data of collection is sent to processor by described camera; Described LCD display is placed in the top of instrument desk, shows the image in each vehicle window region of being taken by camera, facilitates checking of driver; Described processor is connected with vehicle window button, and when processor receives after the pass window instruction of vehicle window button, the view data first transmitting by camera judges in vehicle window region, whether there is object static or motion; If there is object static or motion in vehicle window region, processor does not send instruction to Car window electric machine, and vehicle window does not do any action.

2. the anti-clamping device for car power window based on camera according to claim 1, is characterized in that: described camera is radio micro infrared pick-up head.

3. the anti-clamping device for car power window based on camera according to claim 1 and 2, is characterized in that: also comprise buzzer siren; Described buzzer siren is arranged on a side of operating seat backrest, when processor receives after the pass window instruction of vehicle window button, in the view data demonstration vehicle window region of finding to transmit by camera, has object static or motion; Described controller control buzzer siren sends chimes of doom, reminds driver and conductor.