JP2007214749A - System for displaying photographed image of circumstance behind automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for displaying a photographed image of circumstance behind an automobile, whereby the backward circumstance can be surely and effectively confirmed during driving and can be quickly and conveniently viewed. <P>SOLUTION: Many imaging sensing components are mainly installed to a vehicle body, and the imaging sensing components are connected to particular display apparatuses in a vehicle through a control circuit. The imaging sensing components are respectively installed to positions at both sides in front of the vehicle body and installed at positions at the top of the vehicle body in place of a back mirror. Each display apparatus is installed to a middle and both sides of a driver's cab respectively, and after the imaging sensing components photograph an image of the circumstance behind the vehicle body in this way, the display apparatuses provide the circumstance behind the vehicle body so as to enhance the safety of driving. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a kind of vehicle rear-shot image display system. In particular, the present invention relates to a vehicle rear image capturing image display system that can directly view the scenery behind the vehicle by a display when the vehicle is stationary or traveling, and can be more easily driven and can improve safety.

In general, when driving a vehicle, in order to know the situation of the vehicle traveling behind the vehicle, usually, as shown in FIG. The object can be reflected and the eyes can confirm the image of the object. Thus, it is possible to check the vehicle traveling behind when the vehicle is traveling or when turning right or left, and improve safety. However, this type of known rearview mirror has the following disadvantages when used.
(1) Since the visible angle is generally around degrees and the viewing angle is narrow, erroneous determination is likely to be caused, which adversely affects traveling safety.
(2) At night, the driver's headlights make it difficult for the driver to identify the image, which adversely affects driving safety.
(3) Since the entire area of the rearview mirror is large and protrudes to the outside, there is a risk of danger during traveling, and noise is generated.
(4) Since the rearview mirror protrudes to the outside during traffic jams, it is easily hit by a vehicle (especially a two-wheeled vehicle) traveling behind and easily damaged.
(5) If the rearview mirror is not folded inward at the time of parking, it is easy to break due to a collision and is very troublesome.
(6) In order to see the rearview mirrors on both sides when driving, the driver must shake his head to the left and right, and it is easy to lose attention to a car that is bothersome and traveling forward and backward. When the passenger is in the vehicle, the movement of the passenger blocks the line of sight and adversely affects safety.

  As described above, the known rearview mirror cannot provide the driver with convenience in confirming the rear situation, and is not ideal.

  It mainly provides a car rear view image display system, which allows the driver to check the rear situation reliably and effectively while driving, which can be viewed quickly and conveniently, improving driving safety be able to.

  The image display system includes a large number of image sensing components, the image sensing components are connected to a control circuit, and are connected to the same number of displays by the control circuit, and the image sensing components replace the rear-view mirrors on both sides in front of the vehicle body. It is installed at the appropriate position at the top of the vehicle body, and the display is installed on both sides of the meter in the driver's seat, so that the driver can check the rear situation conveniently while driving, the image sensing component Is a CMOS or CCD image sensor, and the display is an LCD or screen.

  The image sensing component of the image display system has low-exposure (LOW LUX) and white balance (backlight compensation) effects, and the captured image becomes clearer, which is advantageous for confirming the rear in night driving.

  The control circuit of the image display system instantly captures and transmits an image, and also has a mirror image effect (ie, a function that reverses the left and right), infrared nighttime, and a noise filtering effect, so the captured image is even clearer. Appears on the display.

  The viewing angle of the sensor component of the image display system is 65 to 70 degrees, and the total viewing angle of both sensor parts is 125 to 150 degrees, which is close to the viewing angle (150 to 180 degrees) of ordinary people, that is, the rear viewing angle is The vehicle rear-viewing image display system is characterized by being able to improve driving safety because it becomes large.

The invention of claim 1 mainly includes an image sensing component and a display, and the image sensing components are installed at appropriate positions on both the front side and the top of the vehicle body, respectively, and the displays are installed on both sides and the center of the driver's seat, respectively. Thus, after the image sensing component is connected to the control circuit, the image sensing component is connected to the display by the control circuit, and thus the image of the rear of the vehicle photographed by the image sensing component is displayed on the display, and the vehicle body is displayed by the display during driving. The rear vehicle image display system is characterized in that the rear situation can be conveniently checked.
According to a second aspect of the present invention, the image sensing component is a CMOS or CCD image sensor.
According to a third aspect of the present invention, the image sensing component has a low exposure (LOW LUX) and white balance (backlight compensation) effect, which is advantageous for photographing a night image. It is a shooting image display system.
According to the invention of claim 4, since the control circuit connected to the image sensing component immediately captures and transmits an image, and has an infrared nighttime and a noise filtering effect, the image on the display is further cleared. The vehicle rear photographing image display system according to claim 1, wherein
According to a fifth aspect of the present invention, since the control circuit connected to the image sensing component has a mirror image effect (that is, a function in which left and right are reversed), the image display on the display is further cleared. The vehicle rear photographing image display system according to Item 1.
According to a sixth aspect of the present invention, there is provided the rear image capturing image display system for an automobile according to the first aspect, wherein the connected image sensing parts have a waterproof and seismic effect so that the image display on the display is clearer. Yes.

  The rear view image display system of the present invention solves the problem that occurs because the reflection angle of the known rearview mirror is too small, clears the rear situation, wide viewing angle, no blind spot in the car Can be read. Further, since the image sensing component is compact, it is possible to solve problems such as collision and damage that are easily caused by a known rearview mirror having an excessive protrusion area. In addition, a sensor that replaces the rearview mirror can reduce the air resistance and the sound caused by the vehicle running, and can improve safety. Furthermore, the driver can directly check the rear situation at the driver's seat and does not have to shake his head from side to side, so there is no need to change driving habits, and the angle of the head which has been moved greatly is smaller as shown in FIG. However, it is possible to ensure the safety of traveling, and there is no fear of being blocked even if there are passengers in the passenger seat. In addition, since the vision is wide, parking is possible safely without the need to electrically adjust the angle of the rearview mirror during parking. In addition, since it is not necessary to fold the rearview mirror, it is convenient to use. The total angle of the two image sensing components is in the range of 125 to 150 degrees, which is close to the general human viewing angle (150 to 180 degrees), that is, the rear viewing angle is increased, so when changing lanes or turning left or right Both are easy to confirm backwards, and can improve safety naturally. In addition, the known rearview mirror has a problem that rainwater adheres to it when it rains and affects the safety of driving, but it can be solved and the situation behind can be seen clearly even in bad weather, driving It is advantageous for inside judgment

  As shown in FIGS. 2, 3, and 4, the present invention mainly installs the same number of displays 3 as many image sensing components 2. The image sensing component 2 is a CMOS or CCD image sensor and has a waterproof and anti-seismic effect. The image sensing components 2 are installed on both front sides of the vehicle body 1 (the rear view mirror positions on both sides of the driver's seat or the best visual position on both sides of the vehicle body) and on the appropriate position of the vehicle body vertex (the rear part of the vehicle body vertex). As a result, the image sensing component 2 is connected to the control circuit 4, and the control circuit 4 is connected to the display 3.

  The displays 3 are installed on both sides and the center of the driver's seat 12, respectively. The displays 3 on both sides correspond to the left and right image sensing parts 2, and the center display 3 corresponds to the image sensing part 2 at the top of the vehicle body.

  Next, as shown in FIGS. 5, 6, and 7, the image sensing component 2 captures an image behind the vehicle, processes it by the control circuit 4, and displays it on the display 3. As a result, the driver discriminates the car traveling behind and the situation from the image of the display 3 while traveling, and uses it for observation when changing lanes or turning left or right. In this way, it is not necessary to check the left and right rearview mirrors by a method of shaking the head as shown by the dotted line in FIG. 7, and it is possible to concentrate on driving and improve traveling safety.

  Since each image sensing component 2 has the effects of low exposure (LOW LUX) and white balance (backlight compensation), it eliminates the miscellaneous signal caused by the lack of light at night and the glare reflection caused by the headlight of the rear vehicle. be able to. As a result, the shadowed image is not formed by irradiation with the automobile light, and the captured image is clear and easy to see, and the safety can be greatly improved.

  Further, as shown in FIG. 8, the control circuit 4 includes a CMOS / CCD sensor module and an image display module. The rear image of the vehicle photographed by the image sensing component 2 (ie, CMOS or CCD image sensor) is sent to the processing unit of the CMOS / CCD sensor module (see FIG. 10 for details), and the processed signal is displayed on the image. Re-output to the module and displayed on the display 3.

  Subsequently, as shown in FIG. 9, a shadow image photographed by the CMOS / CCD lens is input by the IC 1a, and is output after being identified, enlarged and screened by the IC 1 and IC 2. The horizontal and vertical synchronizing signals of the output signal are provided by an oscillator circuit composed of transistors Q1 and Q2. Transistors Q1 and Q2 are driven by a pulse signal generated by a built-in quartz oscillator (not shown).

  Further, as shown in FIG. 10, the processing unit includes a built-in micro connector (Micro-connector passive) that connects to the image sensing component 2. The processing unit further includes several control chips (shown as “Sensor Package Controller Device-1” in the figure), and controls the enlargement and the focus set of the image sensing component 2, the operation of the image sensing component 2, and the like. To do. The processing unit further includes several digital signal processing chips (shown as “DPS Controller Device-2” in the figure), and performs miscellaneous signal filtering and image compression and enhancement functions of analog / digital signal interconversion. . The processing unit further includes one night sensing chip, which instructs the digital signal processing chip when the ambient lighting is not enough, adjusts the screen quality of the output image against the image, and clears in any environment Keep the screen clean. The night sensing chip also has a backlight compensation function. The processing unit further includes an encoder chip for encoding the image signal. The RAM storage device and power device used by the encode chip receive the direct current (12V, etc.) output by the vehicle battery and provide it for use in other parts of the system. The image signal output last is sent to the image display module. Since the image display module has a known structure, it will not be described in detail.

  As described above, the present invention solves the problems that occur because the reflection angle of the known rearview mirror is too small, makes the rear situation clearer, has a wide viewing angle, and can be read in the vehicle without a blind spot. . Further, since the image sensing component is compact, it is possible to solve problems such as collision and damage that are easily caused by a known rearview mirror having an excessive protrusion area. In addition, a sensor that replaces the rearview mirror can reduce the air resistance and the sound caused by the vehicle running, and can improve safety. Furthermore, the driver can directly check the rear situation at the driver's seat and does not have to shake his head from side to side, so there is no need to change driving habits, and the angle of the head which has been moved greatly is smaller as shown in FIG. However, it is possible to ensure the safety of traveling, and there is no fear of being blocked even if there are passengers in the passenger seat. In addition, since the vision is wide, parking is possible safely without the need to electrically adjust the angle of the rearview mirror during parking. In addition, since it is not necessary to fold the rearview mirror, it is convenient to use. The total angle of the two image sensing components is in the range of 125 to 150 degrees, which is close to the general human viewing angle (150 to 180 degrees), that is, the rear viewing angle is increased, so when changing lanes or turning left or right Both are easy to confirm backwards, and can improve safety naturally. In addition, the known rearview mirror has a problem that rainwater adheres to it when it rains and affects the safety of driving, but it can be solved and the situation behind can be seen clearly even in bad weather, driving It is advantageous for the inside judgment.

It is an installation example figure of a well-known rearview mirror. It is an installation example figure of this invention. It is a component connection Example figure of this invention. It is a display installation example figure of this invention. It is a use Example figure of this invention. It is a use Example figure of this invention. 2 is a visual embodiment of the present invention. It is a functional block chart of the present invention. It is a circuit embodiment figure of the image sensing component of this invention. It is a functional block chart of the processing unit of the image sensing module of the present invention.

Explanation of symbols

1 Car body 2 Image sensing component 11 Rearview mirror 3 Display 12 Driver's seat 4 Control circuit

Claims (6)

  It mainly includes an image sensing component and a display, and the image sensing components are installed at appropriate positions on both the front side of the vehicle body and the apex of the vehicle body, respectively, and the displays are installed on both sides and the center of the driver's seat, respectively. After connecting to the control circuit, connect to the display by the control circuit, thus displaying the rear image of the vehicle imaged by the image sensing component on the display, and conveniently confirming the situation behind the vehicle body by the display during driving A vehicle rear-view image display system characterized by being capable.   2. The rear image capturing image display system according to claim 1, wherein the image sensing component is a CMOS or CCD image sensor.   2. The rear image capturing image display system according to claim 1, wherein the image sensing component has low exposure (LOW LUX) and white balance (backlight compensation) effects, and is advantageous for capturing images at night.   The control circuit connected to the image sensing component instantly captures and transmits an image, and has an infrared nighttime and noise filtering effect so that the image on the display is clearer. Car rear view image display system.   2. The rear view of an automobile according to claim 1, wherein the control circuit connected to the image sensing component has a mirror image effect (i.e., a function of reversing the left and right), so that the image display of the display becomes clearer. Image display system. 2. The rear image pickup image display system according to claim 1, wherein the connected image detection parts have a waterproof and seismic effect, so that the display of the image on the display is even clearer.

Images