KR20160146400A - The rear image display apparatus of vehicle - Google Patents

Abstract

The present invention relates to a rear image display apparatus for a vehicle, which automatically displays the rear image of a vehicle on a separate display device in association with a start switch and/or a gear sensor according to users selection, allows a camera to follow the object and to film the object when a rear object is detected, thereby improving parking convenience. The rear image display apparatus for a vehicle comprises: a mode setting unit for setting a mode for selecting an image to be displayed and a mode for tracking an object; a starter switch for detecting the starting state of a box truck or a commercial vehicle; a gear position sensor for detecting the gear state position of the box truck or the commercial vehicle; a distance sensor for sensing a distance between the box truck or the commercial vehicle and a sensed rear object; an image acquisition unit for acquiring the rear image of the box truck or the commercial vehicle; a control unit for controlling the image display based on the start state information and the gear state information according to the mode set by the mode setting unit and controlling display of distance between the selected image and the sensed rear object; and a display unit for displaying a distance between the display image and the sensed rear object on a screen in linking with the control unit.

Description

[0001] The present invention relates to a rear image display apparatus for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear image display of a vehicle, and more particularly, to a rear image display of a vehicle, in which a rear image of a vehicle is automatically displayed on a separate display device in conjunction with a start switch and / or a gear sensor, So that the convenience of parking can be improved.

Here, the term "vehicle" means a vehicle and a commercial vehicle.

Generally, as a means for safe driving of a vehicle, a side mirror for securing a view of a rear side of the vehicle and a roof mirror for installing a rearview mirror of a vehicle ).

Such a mirror can grasp the side and rear conditions up to a certain level, but it may also cause an inadequate area to recognize the rear situation, that is, a blind spot that is not seen by the mirror. If there are objects or persons in such blind spots, it may cause damage due to collision of the vehicle, and may even cause personal injury.

In addition, there is a room mirror for checking the rear view of a top car or a commercial vehicle. However, in the case of a top car, it is impossible to check the rear because many containers such as a container are mounted in the rear. In the case of a commercial vehicle, it is possible to check the rear through a small window formed behind the driver's seat using a room mirror. However, since it is mostly used for transportation of a commercial vehicle, it is almost impossible to check the rear through a room mirror due to actual cargo. Therefore, in the case of a top or commercial vehicle, it is impossible to check the rear side through a room mirror. Therefore, in the reverse parking, a vehicle collision occurs due to a collision with a rear object, and sometimes a personnel accident occurs.

In order to prevent an accident occurring in a dead zone behind the vehicle and a vehicle or a commercial vehicle, a rearward surveillance camera for rearward surveillance is installed in the vehicle, and the image of the rear of the vehicle is displayed on the screen through a display device. A technique has been proposed for a rearward surveillance system that allows the driver to recognize the situation of the rear of the vehicle while accurately driving the vehicle.

As is well known, a technique of monitoring the rear of a vehicle mounted on a vehicle and exposing it as an image is disclosed in Patent Documents 1 to 3 below.

In the conventional art disclosed in Patent Document 1, a rearview of a vehicle or a national airwave broadcast is viewed according to a driving condition of a vehicle through a room mirror provided in a vehicle interior, thereby eliminating a blind spot in a rear view, It is possible to solve the inconvenience caused by the installation of the device which is not considered in the case of installation.

The conventional art disclosed in Patent Document 2 includes a room mirror housing, a half mirror installed on the front surface of the room mirror housing, a display panel provided on the rear surface of the half mirror, a display panel provided with a permanent magnet, and an electromagnet corresponding to the permanent magnet, The image captured by the rear camera of the automobile is outputted to the inner display panel of the vehicle room mirror, so that the driver can easily watch the rear screen when backing up, thereby preventing the accident and the damage of the vehicle.

The conventional technology disclosed in Patent Document 3 is a patent registered by the present inventor and registered as a patent. It includes a start switch for detecting a start state, a direction change switch for detecting a direction change, a gear position sensor for detecting a gear position, A distance detection sensor for detecting a distance between the rear sensing object and the rear sensing object, an image acquisition unit for acquiring a side image and a rear image of the vehicle; And a control unit for controlling the display of the image on the room mirror and displaying the distance on the rearview mirror. The rear and side images of the vehicle are displayed on the room mirror, and the display image is selected according to the starting state, Display in the room mirror.

Korean Patent Publication No. 2002-0009711 (published on Feb. 2, 2002) (Name of the invention: image-realizing device using room mirror) Korean Patent No. 10-0792933 (2008.01.08. Announcement) (Name of invention: Automobile room mirror and rear detection system equipped with it) Korean Registered Patent No. 10-1400419 (Registered May 21, 2014) (Name of invention: Image display device using a room mirror of a vehicle)

However, the above-described related art has an advantage in that the driver views the back of the vehicle and displays it on the room mirror, thereby securing the rear view of the driver when the vehicle is parked or reversed, but the driver can not select the display image.

In addition, the conventional art has a disadvantage in that it can not shoot an object to be sensed optimally by following an object detected by the rear camera. For example, since the rear camera is fixed at a specific position and photographs the rear, the driver may not be able to identify the rear object through the display device even when an alarm sound is generated by sensing the rear object by the actual distance sensor.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is therefore an object of the present invention to provide a display device, And an object of the present invention is to provide a rear image display apparatus for a vehicle.

It is another object of the present invention to provide a rear image display device for a vehicle that allows a camera to follow an object and detect a rear object so as to facilitate parking.

According to another aspect of the present invention, there is provided a rear image display apparatus for a vehicle, comprising: a mode setting unit for setting a mode for selecting an image to be displayed and a mode for tracking an object;

A starter switch for detecting a starting state of a top vehicle or a commercial vehicle;

A gear position sensor for detecting a gear state position of the top or commercial vehicle;

A distance detection sensor for detecting a distance between the vehicle or the vehicle and the rear sensing object;

An image acquisition unit for acquiring a backward image of the top or commercial vehicle;

A control unit for controlling the image display based on the start state information and the gear state information according to the mode set by the mode setting unit and controlling the distance display between the selected image and the rear sensing object; And

And a display unit for displaying a distance between the display image and the rear sensing object on the screen in cooperation with the control unit.

Further, in the rear video display device of the present invention,

A camera driver for driving the camera of the image acquisition unit under the control of the control unit and rotating the camera; An alarm sound generator for generating an alarm sound for identifying a distance to the rear sensing object according to a differential alarm sound generation signal generated by the control unit in accordance with the distance from the sensing object, ; And a communication module for transmitting the stored image to the black box, receiving the image stored in the black box, and transmitting the image to the controller for reproduction.

The mode setting unit may include a first image mode for automatically displaying a backward surveillance image on the screen when the start or stop of the vehicle is detected by the start switch and the gear position sensor detects the state of the drive (D). A second image mode for displaying a rear surveillance image on the screen when the gear position sensor detects a backward (R) state after startup of the top or commercial vehicle by the start switch; A third image mode for controlling the camera to follow the object when the object is sensed; And a fourth image mode for controlling the camera not to follow the object when the object is sensed.

The control unit controls the image display by detecting the start state information and the gear state information based on the first through fourth image modes set by the mode setting unit and controls the distance between the image selected at the time of image display and the rear- And displays a rear image on the screen when the gear state is in a drive state and a state in which the top or commercial vehicle is started when the second image mode is set, When the gear state is in the reverse state, the rear image is displayed on the screen. In the third image mode setting, if an object is detected within the set distance when the vehicle or the commercial vehicle moves backward, the camera is followed in accordance with the position of the distance sensor A rear image is displayed on the screen, and when the fourth image mode is set, Even if an object is detected within a set distance in the backward direction, the camera is fixed to the initial setting position and the rear image is displayed on the screen.

The controller may further include an object position determining module that determines an object position based on position information of the distance sensor when the object is detected by the distance sensor; A camera photographing position determining module for determining a camera photographing position when the position of the object detected by the object position determining module is determined; A camera tracking control module for comparing the camera photographing position determined by the camera photographing and positioning module with the photographing position of the current camera and controlling the camera to follow the object by rotating the camera by the difference; And a mode display control module for controlling the display of the photographed image according to the mode set by the mode setting unit.

According to the present invention, there is an advantage that a rear image of a top or commercial vehicle can be automatically displayed on a separate display device in conjunction with a start switch and / or a gear sensor according to a user's selection.

In addition, according to the present invention, when a rear object is detected, a camera follows an object and photographs the object, thereby providing convenience in parking.

FIG. 1 is a block diagram of a rear video display device of a vehicle according to a preferred embodiment of the present invention.
FIG. 2 is a block diagram of an embodiment of the control unit of FIG.
FIG. 3 is an exemplary view showing a rear image on a screen by using a rear image display apparatus of a vehicle according to the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vehicle rear image display apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a rear image display apparatus of a vehicle according to a preferred embodiment of the present invention.

The vehicle rear image display apparatus 100 according to the present invention includes a mode setting unit 101, a start switch 102, a gear position sensor 103, a distance detection sensor 104, a control unit 105, An image processing unit 107, a camera driving unit 108, a display unit 109, an alarm sound generating unit 111, a speaker 110, a memory 112 and a communication module 113.

In FIG. 1, reference numeral 200 denotes a black box 200 for recording a surveillance image mounted on a vehicle.

The mode setting unit 101 sets a mode for selecting images to be displayed and a mode for tracking objects. Such a mode setting may be realized by physically implementing a mode setting button or by implementing a screen of the display unit 109 with a touch panel and setting a mode by software through a touch.

The mode setting unit 101 includes a first image mode for automatically displaying a backward monitoring image on a screen when the vehicle (top or commercial vehicle) is started by the start switch 102 and the gear position is in a drive state; A second image mode for displaying a rear monitoring image on the screen when the gear position detected by the gear position sensor (103) is in a reverse state after the start of the vehicle by the start switch (102); A third image mode for controlling the camera 106 to follow the object when the object is sensed; And a fourth image mode for controlling the camera 106 not to follow the object when the object is sensed.

When only one of the first to fourth image modes is selected, only functions corresponding to the corresponding modes are performed, and when a plurality of images are selected, a plurality of functions are simultaneously combined. For example, when the first image mode and the third image mode are selected, the rear monitor image is automatically displayed on the screen if the start is taken and the gear position is the drive state, and the camera follows the object when the object is detected at the same time. In addition, when the first image mode and the fourth image mode are selected, startup is performed and, if the gear position is in the drive state, the rearward monitoring image is automatically displayed on the screen and the camera does not follow the object even if an object is detected. Similarly, when the second image mode is selected and the third image mode is selected, the rear image is displayed on the screen only when the gear position sensor detects the reverse gear position when the gear position is sensed, and if the object is sensed at the same time, the camera follows the object . In the other cases, the respective functions are appropriately combined to control the image display.

The ignition switch 102 serves to detect the starting state of the vehicle, and is preferably installed in a key box of the vehicle.

The gear position sensor 103 detects the gear position of the vehicle and detects the gear position and transmits the detected gear position to the control unit 105. In the present invention, It is considered to be delivered.

The distance detection sensor 104 serves to detect the distance between the vehicle and the rear sensing object and uses a normal ultrasonic sensor. At least one or more sensors are installed on the left, right, , The distance between the vehicle and the rear sensing object is detected. In the present invention, it is assumed that three distance sensors are used to detect left, right, and center objects behind the vehicle. By separately embodying the input ports corresponding to the respective distance detection signals, the controller 105 can easily determine the position of the distance detection signal.

The image acquisition unit 106 serves to acquire a rear image of the vehicle, and uses a normal camera.

The image processing unit 107 processes the image acquired by the image acquisition unit 106 and may include a codec for processing an image captured by a conventional CCTV camera.

The control unit 105 controls the image display based on the start state information and the gear state information according to the image selection mode or the object following mode set by the mode setting unit 101. When the distance between the selected image and the rear sensing object It controls the display. The control unit 105 is preferably implemented as a control device such as a microprocessor, a microcomputer, a central processing unit, and a controller.

The control unit 105 detects the start state information and the gear state information based on the first to fourth image modes set by the mode setting unit 101 to control the image display, Controls the distance display with the sensing object. If the first image mode is set and the vehicle is started and the gear position is the drive state, the rear image is displayed on the screen. In the second image mode setting, when the vehicle is started, And displays the rear image on the screen only at the position. When the object is detected within the set distance when the vehicle is moving backward in the third image mode setting, the rear image is displayed on the screen by following the camera corresponding to the position of the distance sensor. In addition, when the fourth image mode is set, it is preferable to display the rear image on the screen by fixing the camera to the initial setting position even if an object is detected within the set distance when the vehicle is backward.

2, the control unit 105 includes an object position determination module 104 for determining an object position based on position information of the distance detection sensor 104 detected when an object is detected by the distance detection sensor 104 131); A camera photographing position determining module 132 for determining a camera photographing position when the position of the object detected by the object position determining module 131 is determined; A camera tracking control module 133 for comparing the camera photographing position determined by the camera photographing and positioning module 132 with the photographing position of the current camera and controlling the camera to follow the object by rotating the camera by the difference; And a mode display control module 134 for controlling the display of the photographed image according to the mode set by the mode setting unit 101.

The camera driving unit 108 drives the camera, which is the image capturing unit 106, under the control of the control unit 105, and rotates the camera. Here, the camera driving unit 108 is assumed to include driving means capable of tilting the camera up, down, left, and right. Since the driving means for tilting the camera up, down, left and right is a well-known technique, a detailed description thereof will be omitted.

The display unit 109 displays the distance between the display image and the rear sensing object on the screen in cooperation with the control unit 105. The display unit 109 may be implemented as a liquid crystal display (LCD) or a touch panel.

The alarm sound generating unit 111 interlocks with the control unit 105 and identifies a distance to the rear sensing object according to a differential alarm sound generation signal according to the distance to the sensing object generated by the control unit 105 And transmits the generated alarm sound through the speaker 110.

Here, the differential alarm sound generation signal stores various alarm sound generation signals in advance in the memory 112 according to the distance between the vehicle and the sensed object in the control unit 105, and outputs a corresponding alarm sound from the memory 112 And extracts the generated signal. As the distance between the vehicle and the sensing object becomes closer, the sound becomes larger and it is effective to cause the sound to be generated by shortening the period of occurrence of the alarm sound (interval between the primary alarm sound and the next alarm sound).

The memory 112 stores the generated image, stores generated data, and incorporates a control program for rearward monitoring and control.

The communication module 113 transmits a stored image to the black box 200 and receives the image stored in the black box 200 and transmits the image to the controller 105 for reproduction.

The operation of the rear image display apparatus of the vehicle according to the present invention will now be described in detail.

First, when the vehicle is started by the ignition switch 102, the rear image display device 100 of the vehicle starts to be supplied with driving power. The same operation as that of the ignition switch 102 is performed when the ignition is turned on in the vehicle by using the ignition key. Preferably, the driving power source is supplied with power from a battery provided in the vehicle or a separate battery is installed therein.

Here, the rear image display apparatus 100 may be implemented as a separate image display apparatus. It is also possible to connect necessary equipment through an input / output port to a navigation system, which is almost indispensable to a vehicle, and to embed a software program therein.

When power is supplied, the control unit 105 performs initialization and controls the image display based on the mode set by the mode setting unit 101 and the gear position detected through the gear position sensor 103. Here, the gear position means the state of the drive D, the neutral N, the reverse R and the parking P state.

Here, the mode setting unit 101 includes the above-described first to fourth image modes. Through the mode setting unit 101, the user can display the backward image on the display unit 109 at a desired time point .

For example, when the user sets the first image mode, the mode display control module 134 of the control unit 105 confirms the gear position and, if the drive state is in the drive state, the rear image acquired through the image acquisition unit 106, 107, and displays it on the display unit 109. [ When a rear object is detected by the distance sensor 104, the distance between the vehicle and the rear object is calculated using the detection signal, the display unit 109 overlaps the calculated distance with a predetermined position of the rear image, . FIG. 3 is an exemplary view illustrating a rear image displayed on the rear image display device 100. FIG.

Thus, even if the user can not monitor the rear through the room mirror like a top or commercial vehicle, the state of the rear of the vehicle can be easily confirmed as an image even in the drive state using the above-described image display method.

In this case, when the ultrasonic sensor is used as the distance sensor 104, the distance can be calculated using the time that ultrasonic waves are transmitted and the ultrasonic waves are reflected from the object. The shorter the reflected time is, the closer the distance between the vehicle and the object, and the longer the time of reflection and the longer the distance between the object and the vehicle is.

When the user sets the second image mode, the mode display control module 134 of the control unit 105 confirms the gear position. If the user is in the backward state, the rear image acquired through the image acquisition unit 106 is transmitted to the image processing unit 107 And displays the result on the display unit 109. [ When a rear object is detected by the distance detection sensor 104, the distance between the vehicle and the rear object is calculated using the detection signal, the calculated distance value is superimposed on a predetermined position of the rear image, ).

Here, if the gear state is the backward direction, the alarm sound data is extracted from the memory 112 using the calculated distance value, and the alert sound data is transmitted to the alarm sound generation unit 111. The alarm sound generating unit 111 converts the alarm sound data to be transmitted into an analog alarm sound signal and sends it to the outside via the speaker 110. Accordingly, when an object is detected in the backward direction, the user confirms the object through the screen and recognizes the distance information to recognize the distance between the object and the vehicle. It also predicts the distance between the object and the vehicle through voice.

According to another aspect of the present invention, there is provided a method of displaying a rear image on a screen by interlocking with a gear position sensor, The image can be displayed following the image.

For example, when the user selects the third video mode while the first video mode or the second video mode is selected, the controller 105 acquires the backward video by following the detected object with the camera, . Here, when the camera follows an object and acquires the image, it is useful when an object is actually behind and an object is not displayed on the screen due to a blind spot of the camera even though a distance and an object are detected.

In other words, since a photographing angle is determined depending on an installation position of a rear camera mounted on a normal vehicle, there is a blind spot where shooting can not be performed depending on the installation position.

When an object is detected in such a blind spot, it is possible to detect the object, and to display the distance between the object and the vehicle. However, since the driver can not confirm the object with the image, Therefore, in order to solve such anxiety of driving, the present invention allows the camera to follow the object and acquire the backward image according to the user's selection.

When the third image mode is selected as described above, the object position determination module 131 determines the object position based on the detection signal sent from the distance detection sensor 104. For example, the distance sensor 104 is installed on the left, right, and center of the rear of the vehicle. And the detection signal input ports of the respective distance detection sensors are different from each other. Therefore, the object position determination module 131 determines which object is located by confirming to which input port the distance detection signal (meaning the same as the object detection signal, a distance detection signal is generated only when an object is detected) is input .

The object position discrimination signal thus discriminated is transmitted to the camera photographing and positioning module 132. The camera photographing and positioning module 132 determines the camera photographing position based on the transmitted object position discrimination signal. That is, when the distance detection signal is generated from the left distance sensor, the camera photographing position is shifted to the left, when the distance detection signal is generated from the center distance sensor, the camera photographing position is centered When the distance detection signal is generated, the camera shooting position is determined to the right.

In this case, when the distance detection signal is generated through the single distance sensor, the camera photographing position can be easily discriminated. However, when two or more distance detecting signals are simultaneously generated, it is easy to identify the camera photographing position I do not. Therefore, in this case, the camera shooting position is determined by the following conditions.

That is, when the distance detection signal is generated by the left distance detection sensor and the center distance detection sensor, the camera shooting position is determined as a position where the center and left sides can be photographed at the same time. In addition, when a distance detection signal is generated by the right distance sensor and the center distance sensor, the camera position is determined as a position where the center and the right can be simultaneously photographed. Also, when a distance detection signal is generated in both the left distance detection sensor, the center distance detection sensor, and the right distance detection sensor, the photographing position of the camera is determined as a position at which the center of the current position can be photographed.

The photographing position value thus determined is transmitted to the camera tracking control module 133. The camera tracking control module 133 searches the memory 112 based on the photographed position value and extracts a camera tilting control value corresponding to the photographed position value. Here, it is assumed that camera tilting control values for respective photographing position values are stored in advance in the memory 112 through experiments. Then, the extracted camera tilting control value and the position value of the current camera are calculated, and the difference is calculated. For example, assuming that the current camera position value is 50 (center) and the camera tilting control value is 20, the left side 20 is calculated (subtracted) from 50, and 30 is calculated as the resultant value. The resultant value 30 thus calculated is consequently the control data to rotate the current position 30 times to the left. In addition, the above-described control method rotates the camera only in the horizontal direction (left and right). The present invention can rotate the camera in the vertical direction (up and down) in addition to the horizontal direction as described above. Here, the vertical rotation of the camera rotates downward by a preset value. Generally, when an object is detected by the rear camera but the object is not visible on the screen, it is common that an object exists close to the lower end of the bumper. Therefore, in the present invention, it is preferable to set the camera control value so that the camera is rotated downward by a predetermined angle in the downward direction by rotating the camera using the camera tilting control value in the horizontal direction. In case the object is not visible on the screen even though the camera has been rotated to the left and down directions when the object is detected, the user may additionally provide a button for separately selecting the up and down directions, It is also possible. The camera tracking control module 133 automatically rotates the camera in a specific direction. When the user operates the button and inputs the operation signal up or down, the camera tracking control module 133 rotates the camera correspondingly.

The camera tilting control value generated in the camera tracking control module 133 is inputted to the camera driving unit 108. [ The camera driving unit 108 rotates the camera, which is the image obtaining unit 106, based on the input camera tilting control value, and acquires a rear image of the vehicle while following the object.

The backward image acquired by following the object is processed through the image processor 107 and then transmitted to the controller 105 and displayed on the display unit 109.

Therefore, even when an object is located in a blind spot of a rearview camera of a vehicle, the object can be accurately photographed and displayed on the screen.

According to the present invention, even when an object detection signal and an alarm sound are generated as in the conventional art, objects can not be seen on the screen.

On the other hand, when the user sets the fourth image mode, the control unit 105 does not perform object tracking control even if an object is detected in the rear of the vehicle. In this case, the backward image is displayed on the display unit 109 only by the first image mode or the second image mode.

As another feature of the present invention, it is possible to reproduce an image of a black box in the rear video display device 100. [ For example, if the user wishes to check the black box image using the rear image display device 100, the input device (not shown) operates the black box image reproduction button.

When the black box image reproduction button is operated, the control unit 105 controls the communication module 113 to perform communication with the black box. Then, when communication with the black box is performed, the image received from the black box is received. In other words, the image stored in the black box is received and transmitted to the display unit 109, so that the image of the black box can be checked in real time through the rear image display device 100. In order to check an image of a black box provided in an actual vehicle, a black box and a separate display device are connected to reproduce an image stored in a black box, or a memory chip stored in a black box is connected to another display device to reproduce a black box image However, in the present invention, only the black box image reproduction button provided in the rear image display device 100 is operated, so that the driver can conveniently view the image of the black box through the rear image display device 100 in real time As shown in Fig.

Also, as another feature of the present invention, it is also possible to store the backward image acquired through the backward image display device 100 in the black box 200. For example, when a user requests a storage command of a rear image through an input device, the control unit 105 stores the vehicle rear image acquired through the image processing unit 107 in the black box 200 through the communication module 113 .

The back image of the stored vehicle can be used to identify the cause of the accident or to use it as evidence.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

The present invention is applied to a technique of checking the rear of a vehicle on a vehicle or a commercial vehicle as an image, storing a vehicle rear image in a black box, or reproducing a black box image in real time through a rear image display device.

100: rear image display device
101: Mode setting section
102: Start switch
103: Gear position sensor
104: Distance detection sensor
105:
107:
108: camera driver
109:
111: Alarm sound generator
113: Communication module
131: Object position determination module
132; Camera shooting positioning module
133: Camera tracking control module
134: Mode display control module

Claims (5)

A mode setting unit for setting a mode for selecting an image to be displayed and a mode for tracking an object;
A starter switch for detecting a starting state of a top vehicle or a commercial vehicle;
A gear position sensor for detecting a gear state position of the top or commercial vehicle;
A distance detection sensor for detecting a distance between the vehicle or the vehicle and the rear sensing object;
An image acquisition unit for acquiring a backward image of the top or commercial vehicle;
A control unit for controlling the image display based on the start state information and the gear state information according to the mode set by the mode setting unit and controlling the distance display between the selected image and the rear sensing object; And
And a display unit for displaying a distance between the display image and the rear sensing object on the screen in cooperation with the control unit.
The camera driving unit drives the camera of the image capturing unit according to the control of the control unit and rotates the camera; An alarm sound generator for generating an alarm sound for identifying a distance to the rear sensing object according to a differential alarm sound generation signal generated by the control unit in accordance with the distance from the sensing object, ; Further comprising a communication module for transmitting the stored image to the black box, receiving the image stored in the black box, and transmitting the stored image to the controller for playback.
The mode setting unit may include a first image mode for automatically displaying a backward surveillance image on the screen when the start or stop of the top or commercial vehicle is detected by the start switch and the gear position sensor detects the state of the drive D, A second image mode for displaying a rear surveillance image on the screen when the gear position sensor detects a backward (R) state after startup of the top or commercial vehicle by the start switch; A third image mode for controlling the camera to follow the object when the object is sensed; And a fourth image mode for controlling the camera not to follow the object when the object is sensed.
The control unit controls the image display by detecting the start state information and the gear state information based on the first through fourth image modes set by the mode setting unit, A rear view image is displayed on the screen when the first or second image mode is set, and when the gear state is the drive state, the rear image is displayed on the screen, and when the second image mode is set, When the gear state is in a backward state in a state in which the commercial vehicle is started, the rear image is displayed on the screen. When the object is detected within the set distance when the third vehicle is set in the third image mode, The rear image is displayed on the screen by following the camera correspondingly, and the fourth image mode setting There tapcha commercials or reverse settings even when an object is detected within the distance to secure the camera to Choshi positioned rearward image display device for a vehicle, characterized in that for displaying a rear image on the screen.
An object position determination module for determining an object position based on position information of the distance sensor when the object is detected by the distance sensor; A camera photographing position determining module for determining a camera photographing position when the position of the object detected by the object position determining module is determined; A camera tracking control module for comparing the camera photographing position determined by the camera photographing and positioning module with the photographing position of the current camera and controlling the camera to follow the object by rotating the camera by the difference; And a mode display control module for controlling the display of the photographed image according to the mode set by the mode setting unit.

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