KR20030037740A - Black and white picture recording system for vehicle - Google Patents

Abstract

PURPOSE: A black-and-white image storage device for vehicles is provided to store video information about an accident generated in a vehicle to utilize the video information as evidence data of the accident. CONSTITUTION: A black-and-white image storage device for vehicles includes a monitoring camera(20) for capturing the image of the inside of a vehicle, a video input unit(30) for receiving the output video signal of the monitoring camera, an A/D converter(31) for converting the video signal stabilized by the video input unit into a digital signal, and a video DSP(32) for encoding and compressing the digital signal. The device further includes a microcomputer(35) for generating a control signal to temporarily store the compressed video signal in the first memory(33) and finally store the signal in the second memory(34), a D/A converter(36) for converting the video signal decoded and decompressed by the video DSP into an analog signal, a mixer(38) for mixing the analog video signal with horizontal and vertical synchronous signals to generate a composite video signal, an on-screen-display(40) for displaying a screen on which character data for indicating a reproduction operation is output and a password, a vehicle ID, a driver's name are set, changed and canceled, a video output unit(39) for processing a final video signal obtained by overlaying the composite video signal with the character data, and a display(50) for displaying the final video signal.

Description

Black and white picture recording system for vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a black and white image storage device for a vehicle. In particular, a black and white image storage for a vehicle for storing image information of an incident occurring in a vehicle, such as a vehicle crime, theft, and a charge grab of a commercial vehicle, can be used as evidence for an incident site. Relates to a device.

In general, in modern life, cars have become an indispensable means of transportation, providing both abundance and comfort to modern people. However, the number of people who are killed or injured in accidents year after year by automobiles that are important to modern people.

Recently, as automotive technology enters the era of Car Electronics, which adds various advanced electronic devices to internal machinery, its functions are diversified. There are also a lot of people who are involved in criminal acts, and the car is convenient and the target of criminal acts.

Thus, when a crime such as a robbery or theft occurred inside the vehicle, it could only be solved through oral statements and situational identification of the offender and the victim during the investigation, and it was not easy to catch the offender. In other words, it was difficult to grasp the situation objectively, so there was a difficult problem in criminal investigation.

The present invention is to solve the above problems, primarily to store the video information of the incident occurred in the vehicle, such as vehicle crimes, theft and charge grab of commercial vehicles, as well as to use as evidence for the incident site, as well as secondary Its purpose is to be able to use it when it is necessary to photograph important situations in a vehicle.

An object of the present invention is connected to the cigarette lighter jack for the vehicle power supply unit for supplying power to each circuit; A surveillance camera for capturing an in-vehicle image by a recording key on the keypad; An image input unit to which an output image signal of the surveillance camera is input; An A / D converter converting the image signal stabilized in the image input unit into a digital signal; An image DSP unit for encoding and compressing an image signal converted into the digital signal; A microcomputer for temporarily storing the compressed video signal in a first memory unit and outputting a control signal to be finally stored in the second memory unit; A D / A converter for converting a video signal decoded and extended by the video DSP unit into an analog by a playback key on a keypad; A synchronization signal generator for generating horizontal and vertical synchronization signals; A mixing unit which generates a composite signal by mixing the analog image signal and the horizontal and vertical synchronization signals; An on-screen display unit for outputting text data indicating that a playback operation is in progress, and for outputting a screen for setting, changing, and releasing a password for inquiry and deletion of the recorded and recorded video signal information; An image output unit configured to input-process the composite image signal and the final image signal overlaid with the text data; The display unit is configured to display a final image signal output from the image output unit.

1 is a circuit block diagram of a vehicle black and white image storage device of the present invention

** Description of the main parts of the drawing **

20: surveillance camera 30: video input unit

31: A / D conversion unit 32: Video DSP unit

33: first memory unit 34: second memory unit

35: microcomputer 36: D / A conversion unit

37: sync signal generator 38: mixing section

39: video output unit 40: on-screen display unit

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

1 is a circuit block diagram of a vehicle black and white image storage device of the present invention, as shown in the present invention, the power supply unit 10 is connected to the vehicle cigar jack for applying power to each circuit unit; A surveillance camera 20 for capturing an in-vehicle image by a recording key on the keypad; An image input unit 30 to which an output image signal of the surveillance camera 20 is input; an A / D converter 31 converting the image signal stabilized by the image input unit 30 into a digital signal; An image DSP unit 32 for encoding and compressing an image signal converted into the digital signal; A microcomputer 35 for temporarily storing the compressed video signal in the first memory unit 33 and outputting a control signal to the second memory unit 34 for final storage; A D / A converter 36 for converting a video signal decoded and decoded by the video DSP unit 32 into an analog by a playback key on the keypad; A synchronization signal generator 37 for generating horizontal and vertical synchronization signals; A mixing unit (38) for mixing the analog image signal and the horizontal and vertical synchronization signals to produce a composite signal; An on-screen display unit 40 for outputting text data indicating that a playback operation is being performed, and for outputting a screen for setting, changing, and releasing a password for inquiry and deletion of the recorded and recorded video signal information; An image output unit 39 for input processing the composite image signal and the final image signal overlaid with the text data; The display unit 50 displays the final image signal output from the image output unit 39.

And the micro switch or sensor 70 is installed in the vehicle door so that it is operated every time an event such as opening of the vehicle door during boarding occurs and automatically records at the frame number and recording period specified in the setting menu on the keypad 60.

In addition, the emergency recording button is installed near the driver's seat or the pedal so as to record at an interval of 1 second when an emergency situation, i.e., when the strength changes into an intrusion or a robbery, is touched.

In addition, a memory space pocket save area in the second memory unit 34 capable of reselecting and re-recording only necessary video information from the recorded video information while watching a video by pressing a playback key on the keypad 60. This is made up. The pocket save area may be configured to be variable.

Meanwhile, a screen for inputting and storing a vehicle ID number and a driver's name is configured on the on-screen display unit 40 so as to be applied to a commercial taxi or a bus to prevent fare grab. In this case, it is preferable to set the frame number and recording cycle interval setting on the setting menu to automatically record at a predetermined time interval when boarding the passenger, and to record at the recording cycle interval when the door is opened, and to automatically stop the recording after the set number of frames.

Operation of the present invention configured as described above is described with reference to FIG.

12V or 24V is inputted to the power supply unit through the vehicle cigar jack, where it is converted into a suitable voltage for each circuit unit and applied. When the power key on the keypad 60 is turned on, the black and white image storage device of the present invention is driven.

Subsequently, when the recording key on the keypad 60 is pressed, the signal is transmitted to the microcomputer 35, and an image signal captured by the monitoring camera 20 is applied to the image input unit 30 by the control signal. The video signal is input to the A / D converter 31 after the DC bias is stabilized. Subsequently, the analog video signal is converted into a digital signal by the luminance signal 8 bits by the A / D converter 31 and input to the video DSP unit 32.

In the image DSP unit 32, the image signal is encoded and compressed into JPEG, and the image signal data encoded and compressed by the control signal of the microcomputer 35 is stored in the first memory unit (for example, DRAM) 33. Temporarily stored, and finally, the video signal data is stored in a designated position of the second memory section (e.g., flash memory) 34. As shown in FIG.

Such a manual recording method may be preferable to record one time each time the user presses the recording key.

As described above, when the video signal data stored in the second memory unit 34 is pressed on the keypad 60, the signal is transmitted to the microcomputer 35 and transmitted to the image DSP unit 32 by the control signal. And decode, and also send other character data such as "playing" to the ON SCREEN DISPLAY unit 40.

The D / A converter 36 converts the decoded and decoded image signal from the image DSP unit 32 into an analog image signal, and the horizontal and vertical signals generated by the synchronization signal generator 37 are converted to the image signal. The synchronization signals H. SYNC and V. SYNNC are mixed in the mixing unit 38 to produce a composite signal.

The video signal generated as described above and the text data applied by the on-screen display unit 40 are overlaid and the final signal is output to the video output unit 39.

Subsequently, the image output unit 39 displays the overlaid image and text data through the display unit 50.

The recording and reproducing operation of the image photographed by the surveillance camera 20 has been described. In the method of storing the image, there is a method of manually recording by pressing a previously described recording key, and also has a method of auto recording. (Emergency) There is a way to record every time a situation occurs.

In the automatic recording method, whenever an event such as opening of the vehicle door occurs, the micro switch or sensor 70 installed in the vehicle door is operated to record at a predetermined frame count and recording period in the setting menu on the keypad 60.

In case of an emergency recording method, emergency recording button is installed near the driver's seat or pedal, and when the emergency situation occurs, that is, when the strength or invasion turns into an invasion or the intensity, when the user touches the hand / foot, the recording is performed every second. Depending on the capacity of 34), the number of recorded frames may vary. For example, it may be 80 frames or 500 to 1000 frames.

The photographed information may be submitted as evidence for on-site evidence, which may be helpful in criminal investigations.

After securing a pocket save area, which is a memory space of an appropriate frame, the second memory unit 34 re-selects and re-records only necessary video information from the recorded video information by pressing the play key. To be stored back in the pocket save. When the image information stored in the pocket save area is full, the subsequent images are overwritten.

The recording and re-recording of important video information selected and re-recorded are provided with a password setting function only for the authorized person, and also includes a function for changing and releasing the password.

Such a password setting, changing, and releasing function is performed by pressing the setting key on the keypad 60 of the present invention. The on-screen display unit 40 is driven to display the time / date, vehicle ID number and driver name, password input field, and other matters. Is displayed.

After that, if a password input field is set, a password input field is displayed and the password input standby state is entered. Subsequently, when a password is input using letters or numbers, a storage command is issued, the microcomputer 35 processes the microcomputer 35 to store the second memory unit 34. In addition, the password change and release function is controlled by the microcomputer 35 similarly to the setting so that the password set in the second memory unit 34 is changed and deleted.

In this case, the password change function is possible only if the previously set password matches the input password. If the password is changed, the new password can be entered into a standby state for inputting a new password. Then, to confirm the newly entered password again, it is required to enter it again.

Like the change function, the password release function is possible only when the previously set password matches the input password. If the password is released, the new password input standby state is entered. In this case, the password is released if the password is not input and the user enters the standby mode.

In addition, the present invention displays the vehicle ID number and the driver's name together with the recorded image information by inputting and storing the vehicle ID number and the driver's name so as to prevent the charge taking by applying to a commercial taxi or a bus with a password function. ) Can be displayed.

Here, the password function as described above is provided so that each taxi or bus driver cannot delete the stored video information.

Similar to the password input described above, when the vehicle ID number and the driver name input field are set, the password input field is displayed next, and when it passes, the input field for entering the vehicle ID number and the driver's name is displayed and the standby mode is entered. You can enter the vehicle ID number and the driver's name using the numbers.

Here, only one of the vehicle ID number and the driver name may be set.

On the other hand, if the password is matched, a new vehicle ID number and driver's name can be entered when the password is matched.If the password is released, it can be released by using a combination of a setting key and another key, or by pressing a specific key. In that case, the number may be various. Of course, if the passwords do not match, the password is entered again.

As such, when applied to commercial taxis or buses for the purpose of preventing charges, automatic recording at regular intervals is possible every time a passenger boards.

That is, after setting the number of frames and setting the recording interval interval (for example, 2 seconds to 30 minutes) on the setting menu, when the door is opened, the recording is made at regular intervals at the setting cycle interval.

As described above, the present invention is intended to prevent vehicle crimes and charge taking of commercial taxis or buses, and by installing the black and white image storage device of the present invention inside a vehicle to record an event occurring in the vehicle. It can also facilitate the resolution of cases such as charge embezzlement, and can be used as conclusive evidence of the event.

Claims (4)

A power supply unit 10 connected to the cigar jack for the vehicle to apply power to each circuit unit; A surveillance camera 20 for capturing an in-vehicle image by a recording key on the keypad 60; An image input unit 30 to which an output image signal of the surveillance camera 20 is input; An A / D converter 31 for converting a video signal stabilized by the video input unit 30 into a digital signal; An image DSP unit 32 for encoding and compressing an image signal converted into the digital signal; A microcomputer 35 for temporarily storing the compressed video signal in the first memory unit 33 and outputting a control signal to the second memory unit 34 for final storage; A D / A converter 36 for converting a video signal decoded and decoded by the video DSP unit 32 into an analog by a playback key on the keypad 60; A synchronization signal generator 37 for generating horizontal and vertical synchronization signals; A mixing unit 38 for producing a composite signal by mixing the analog image signal and the horizontal and vertical synchronization signals; On-screen display that outputs text data indicating that playback is in progress, and a screen for setting, changing and releasing password, vehicle ID number and driver name for inquiry and deletion of recorded and recorded video signal information as described above. Section 40; An image output unit 39 for input processing the composite image signal and the final image signal overlaid with the text data; And a display unit (50) for displaying the final image signal output from the image output unit (39). The method of claim 1, wherein the microcomputer or sensor 70 installed in the vehicle door is connected to the microcomputer 35 to operate the monitoring camera 20 by the detection signal when an event such as a door open occurs. Vehicle black and white image storage device. The vehicle black and white of claim 1, wherein an emergency recording button provided near a driver's seat and a pedal is connected to the microcomputer 35 to operate the monitoring camera 20 by the touch signal when an emergency occurs. Video storage device. 2. The black and white image storage apparatus for a vehicle according to claim 1, wherein a pocket save area is configured to store only necessary image information among image information recorded in the second memory unit (34).