KR19980033498A - Driving Environment Video Recorder of Car - Google Patents

Abstract

The present invention relates to an apparatus mounted on a vehicle and automatically recording the environment around the vehicle as an image.

The surrounding environment of the vehicle is unpredictably changed while driving or while the vehicle is stopped.In the event of an accident with another vehicle or pedestrian while driving the vehicle, the objective data for judging the fault of both parties is It is very useful not only for the driver but also for the other person's car or pedestrian, but it is very difficult to secure the objective data about the situation that occurred while driving on the road or when stopping at the parking lot. It is only about making efforts to secure photographs and to draw witnesses.

According to the present invention, as shown in FIG. 2, cameras are mounted on a vehicle, and peripheral image information captured by the cameras is converted into a digital signal and stored on an image recording medium, and the recorded image information is decoded and displayed immediately on a monitor. By providing a video recording device for the driving environment of a car that can separate the video recording media and play it using a separate video reproducing device, it is possible to secure objective data in case of an accident. It is to ensure accurate image information about the person or the car.

Description

Driving Environment Video Recorder of Car

The present invention relates to a device that is mounted on a car and automatically records the environment around the car as an image. In particular, the camera is equipped with a camera for image capturing and converts the peripheral image information photographed by the camera into a digital signal to record a recording medium. The present invention relates to a video recording apparatus of a driving environment of a vehicle, which is stored in a video recording apparatus and decodes recorded image information to be displayed on a monitor or a recording medium is separated and reproduced using a separate image reproducing apparatus.

While driving on a road, while stationary, or parked, the surroundings of your car change unpredictably. In the event of an accident with another car or pedestrian while driving such a vehicle, securing objective data for judging both parties' faults is a very important problem not only for the driver but also for the other person's car or pedestrian.

In reality, however, it is very difficult to secure objective data on the situation occurring while driving on the road or when stopping at a parking lot. to be.

Moreover, it is very difficult to secure witnesses and credible testimony at the time of the situation.

In addition, there are many car damages such as tire punctures or scratches on parked cars.However, if the offender or the offender escapes, it is difficult to obtain concrete evidence even after discovering this fact. It is impossible to receive.

On the other hand, in the related art, a driving recorder of a vehicle is considered as a technique for considering a driving environment of a vehicle and collecting information related to the driving environment.

However, since the driving recorder records only information such as the speed of the vehicle, the angle of the steering wheel, and the operating time at the time of the accident, frequent contact accidents, pedestrian crossing accidents and signals that may occur during the operation of the vehicle in a complicated and diverse road operating environment. No information can be provided about the car or the car that escapes after the offense.

On the other hand, in order to overcome the blind spots of the car, a sensor is installed in the rear of the car, and when the sensor detects a person or obstacle located behind the car, the device that performs an alarm or a camera capable of shooting the blind spot of the car is suitable. Devices that display the location of the blind spots captured by this camera and display them on the driver's seat are being suggested.However, these devices are merely an auxiliary means of driving the vehicle and display the environment around the vehicle as image information. It could not be recorded and reproduced.

The present invention is equipped with a small camera that can collect the image information of the front / side and rear / side of the car as black and white or color image information, and converts the image taken by the camera into a digital signal in real time on the recording medium The present invention provides a driving environment video recording apparatus for recording and reproducing the recorded video signal and reproducing it on the display means.

In addition, the present invention is equipped with a camera that can collect the image information for the front / side and rear / side of the car in the center of the front windshield and the rear glass of the car, and converts the image taken by the camera into a digital signal The present invention provides a driving environment image recording apparatus of a vehicle for capturing a captured image in real time on a recording medium at regular time intervals and reproducing the recorded image signal to be displayed on a display means.

In addition, the present invention is equipped with a camera that can collect the image information in the front / side and rear / side of the vehicle and a means for detecting external shock to the vehicle, assists the vehicle's own battery power and automatically switch auxiliary power means If the damage to the power supply path of the vehicle itself occurs when an impact is applied to the outside of the vehicle, it is automatically switched to the auxiliary power supply means, and the image taken by the camera is converted into a digital signal and continuously recorded for a predetermined time in real time. Provided is a driving environment video recording apparatus for a vehicle capable of recording on a medium and reproducing the recorded video signal for display on a display means.

1A and 1B are diagrams showing a camera position when the present invention is mounted on an automobile.

Figure 1a is a view showing that the camera is installed in one direction in the front and rear directions, respectively

1B is a view showing that the cameras are installed to cross each other in the front and rear directions

2 is a block diagram of a driving environment video recording apparatus of the present invention;

3 is a flowchart of a driving environment image recording / reproducing process of a vehicle according to the present invention.

Explanation of symbols for main parts of the drawings

Reference Signs List 100: Car 101,102: First and Second Cameras 103: Screen Two Division Processing Unit

104: encoder 105: video recording medium 106: recording interval setting unit

107: power supply 108: auxiliary power supply 109: shock sensor

110: power switching unit 111: forced driving time setting unit 200: video playback device

201: decoder section 202: display section

The construction and operation of the driving environment image recording apparatus of the present invention will be described as an embodiment shown in Figs. 1A to 3.

Figure 1a shows the installation position of the camera in a vehicle equipped with a driving environment image recording apparatus of the present invention.

The front first camera 101 faces the front of the vehicle 100 and is attached to the upper inside of the windshield, and the angle a1 that can be photographed by the first camera 101 is a wide-angle lens, fisheye lens, or other lens. It can be extended appropriately using the back and the like, and image information about the front and front left and right sides is collected.

The rear second camera 102 faces the rear of the vehicle 100 and is attached to the upper upper portion of the rear windshield, and the angle a2 that can be photographed by the second camera 102 is a wide-angle lens, fisheye lens or other lens. It can be extended appropriately using the back and the like, and collects image information on the rear and rear left and right sides.

Such a camera may use a small CCD, and if necessary, a separate camera may be added to the left and right directions.

Meanwhile, as shown in FIG. 1B, the first camera 101 may be installed to face the rear of the vehicle 100, and the second camera 102 may be installed to face the front from the rear. In other words, it is preferable to install the crossover with each other based on the range of a certain distance (d) away from the vehicle body of the vehicle can further extend the operating range of the camera. In this case, the cameras can be operated while eliminating the left and right blind spots of the car.

2 is a block diagram of a driving environment image recording apparatus of a vehicle according to the present invention.

As shown in FIG. 2, the present invention captures images of first and second cameras 101 and 102 mounted on a vehicle in a proper direction to collect image information around the vehicle and the first and second cameras 101 and 102. The screen splitting unit 103 for simultaneously recording and reproducing the video signal in the form of 2 splits on one screen, and the video signal output from the screen splitting unit 103 are composed of a video signal of an appropriate format. Encoder section 104 for converting to a digital signal, video recording medium 105 for storing the digital video signal converted by the encoder 104, and recording interval of the video signal recorded on the video recording medium 105 Recording interval setting unit 106 for setting the power, the power supply unit 107 and the auxiliary power supply 108 of the vehicle itself, the impact sensor unit 109 for detecting a physical shock applied to the vehicle, and the vehicle power supply unit 107 Power supply from When the shock is detected by the shock sensor unit 109, the power supply switching unit 110 for supplying power to the device from the auxiliary power supply unit 108 and the power supply time by the power switching unit 110 to set the impact It includes a forced driving time setting unit 111 for setting the time when the image recording device is to operate when forcibly detected.

A decoder 201 for reproducing the digital video signal recorded on the video recording medium 105 and a display unit 202 for displaying the video signal reproduced by the decoder 201 on the monitor. And a video reproducing apparatus 200.

The image reproducing apparatus 200 may be configured together with the image recording apparatus to immediately reproduce the recorded image, or may be an embodiment in which the image reproducing apparatus 200 is used as a separate device and performs only image recording.

On the other hand, the video recording medium 105 is a medium capable of storing a digital video signal, and comprises a large capacity hard disk drive (HDD), a JAZ drive recordable disk recording medium (Re-writable CD-ROM), and the like. The video recording medium 105 is detachable from the recording apparatus by using a device such as a connector or a communication port.

Alternatively, the video recording medium 105 is constituted by a VCR. In this case, the analog / digital conversion processing of the encoder 104 is not required, and the reproduction of the recorded signal is also an embodiment in which a general analog VCR can be used as it is.

The operation of the driving environment image recording apparatus of the present invention configured as described above will be described with reference to the block diagram of FIG. 2 and the flowchart of FIG.

Usually, the power supply switching unit 110 supplies the power of the vehicle power supply unit 107 as the operating power of the device. The car power source is the battery of the car itself.

When power is supplied to the device, the operations of the first and second cameras 101 and 102 are started in step 301, and the images of the front, rear, and side of the car captured by the cameras are divided into two sides, left and right, on the screen splitting unit 103. The image processing is performed on the screen, and the encoder unit 104 converts the digital signal (step 302).

As described above, the screen dividing process is performed so that the captured image of the first camera 101 and the second camera 102 can be simultaneously monitored on one screen.

The first and second cameras 101 and 102 may be configured as a CCD capable of capturing a black and white or color image. In the case of capturing a color image, the first and second cameras 101 and 102 may recognize not only a vehicle model but also color information. You can recognize impressions more accurately.

Some images of the left and right side of the vehicle can be provided with a separate camera, if necessary, for example, if four cameras to operate on a single screen four camera images are displayed at the same time to perform a four-segmentation process.

The encoder 104 not only converts the photographed video signal into a digital signal but also converts (encodes) the signal into an appropriate signal format. For example, the encoder 104 constitutes a digital video signal of a signal format corresponding to the NTSC system.

This digital video signal is recorded on the video recording medium 105.

At this time, it is determined whether the impact applied to the outside of the vehicle from the impact sensor unit 109 as in step 303, the impact sensor is installed at the appropriate position in the front and rear and lateral direction of the vehicle when contact or collision occurs This device outputs a corresponding detection signal.

When an impact is applied from the outside of the vehicle, power supply from the vehicle power supply unit 107, which is a battery of the vehicle itself, may be stopped. In this case, the power switching unit 110 performs the supply power switching operation as in step 304. To supply power from the auxiliary power supply 108 to the device.

At this time, by continuously supplying the auxiliary power over the forced driving time set by the forced driving time setting unit 111, for example, about 15 minutes, as in step 305, when the contact or collision accident occurs It is possible to collect / record the image information about the environment for a certain time immediately before and after the accident.

In step 306, it is determined whether or not the recording time interval is adjusted. If there is adjustment of the recording interval in this step, the process proceeds to step 309 and the recording interval adjustment unit 106 sets the adjustment of the recording interval. Image recording control is performed at this adjusted set time interval.

For example, when driving, continuous recording is performed. In the case of long-term parking, the surrounding image is recorded in the form of a captured image at regular time intervals in consideration of the recording capacity (recording time) of the image recording medium 105. To give.

By performing step 308, the image recording medium 105 records image collection information around the vehicle as digital information.

This digital information can be compressed and stored using an appropriate compression program to overcome the limitation of the recording time due to the capacity limitation of the video recording medium 105.

The video signal recorded on the video recording medium 105 can be reproduced using the video reproducing apparatus 200 mounted on the vehicle or a separate reproducing apparatus.

In the case of the video reproducing apparatus 200 mounted on a vehicle, when the video reproducing is requested in step 309 (corresponding to a command such as a playback key input by a user), the encoder unit 104 in the decoder unit 201. The digital image information is reproduced by performing encoding and inverse decoding and digital / analog conversion of the digital signal, and displayed on the display unit 202 as shown in step 311.

The display unit 202 may be configured as a VDT or LCD, and when the video signal is converted into the NTSC format by the encoder unit 104, the display unit 202 configures and outputs a composite video signal in the NTSC format. Images captured by the first and second cameras 101 and 102 are displayed on one display unit 202.

If the image reproducing apparatus 200 is a separate device, the image recording medium 105 is separated using a connector or a communication port, and the image recording medium 105 is connected to a separate image reproducing apparatus 200 by a connector or communication. Use a port or the like to connect to enable signal encoding and display.

When the image reproducing apparatus 200 is a PC having a capture board, the displayed image may be captured and stored or printed as a file.

The driving environment image recording apparatus and the image reproducing apparatus of the present invention shown in FIGS. 1A to 3 are one embodiment, and modifications belonging to a category capable of design change to an appropriate form are made according to the characteristics or driving pattern of the vehicle. Could be.

The driving environment image recording device of the present invention provides accurate situational evidence at the time of occurrence of contact accidents, collision accidents, and personal accidents related to the vehicle by real-time recording of the image of the driving of the vehicle and the surroundings of the vehicle while parking. It can be secured as video information.

In addition, the driving environment video recording device of the present invention is supplied with power from the auxiliary power supply when the battery power of the car is cut off due to an accident, so that the continuity of the video recording can be secured. I can make sure.

In addition, since the driving environment image recording apparatus of the present invention can record the image around the vehicle for a long time in the form of a captured image in the case of a parking vehicle, it can also secure a security function for the accident of car injuries while the driver is absent. In addition, information such as color, car number, and impression of the perpetrator, as well as the car model, can be accurately collected as reliable information without depending on the witness.

Claims (6)

Cameras mounted on an automobile and photographing the environment around the vehicle as real-time image information, image signal processing means for processing and processing the image information photographed by the cameras into an appropriate format corresponding to recording and reproducing, and the image And a video recording means for storing the video signal processed by the signal processing means in real time. The display apparatus according to claim 1, further comprising: screen division processing means including at least two cameras and for dividing and recording and reproducing an image captured by the at least two cameras on one screen. Driving environment video recording device of car. The video recording apparatus according to claim 1, further comprising means for adjusting a recording time interval of a video signal recorded in the video recording means. The vehicle according to claim 1, further comprising: a means for sensing an impact applied from the outside of the vehicle, and an auxiliary power supply for supplying power to the apparatus at the time of detecting the impact by the impact sensing means. And a means for forcibly driving for a predetermined time set by switching the power supply path from the power supply to the auxiliary power source. The video recording apparatus of claim 1, further comprising means for reproducing and displaying the video signals recorded in the video recording means. The image recording apparatus of claim 1, wherein the first camera is installed to face from the front to the rear, and the second camera is installed to face to the front. .