KR20130099332A - A vehicular black box using gps data and specific map data, and a recording method for a vehicular black box - Google Patents

Abstract

PURPOSE: A black box for a vehicle using GPS data and map basic data and an image storage method thereof are provided to reflect various accident risk situation by efficiently predicting the same and efficiently utilize a black box storage device by storing image data of high qualities during important moments. CONSTITUTION: A black box for a vehicle using GPS data and map basic data comprises a navigation data receiving unit (100), an image receiving unit (110), a voice receiving unit (120), a control unit (130), a map basic data storage unit (140), and a storage unit (150). The navigation data receiving unit receives navigation data including a position, speed, and a time. The image receiving unit takes photographs of the images in the image quality the control unit desires. The voice receiving unit records the inside and outside voices of the vehicle. The control unit determines whether a position which the navigation data receiving unit receives is a specified area of the map basic data storage unit or not and controls the image quality to be changed in a predetermined image quality when a current position is the specified area. The map basic data storage unit stores map data of the specified area. The storage unit stores voice data recorded by the voice receiving unit and image data photographed by the image receiving unit. [Reference numerals] (100) Navigation data receiving unit; (110) Image receiving unit; (120) Voice receiving unit; (130) Control unit; (140) Map basic data storage unit; (150) Storage unit; (AA) Speed/location/time

Description

A vehicular black box using GPS data and specific map data, and a recording method for a vehicular black box}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle black box using GPS (Global Positioning System) data and map basic data, and a method for storing the image thereof. Specifically, the present invention relates to a position, a speed, Vehicle black box and its image storage by changing the image quality or quality of the image stored when the vehicle passes the accident risk area by using the data such as time and basic data of the map for the area of high accident risk stored in the black box It is about a method.

Black boxes were originally equipped on the aircraft to investigate the cause of the accident, but recently, due to the improvement and distribution of digital devices, the number of vehicles equipped with vehicle black boxes has been continuously increasing. Doing.

In general, a vehicle black box uses a camera to store a situation around the vehicle as a video. Since the storage capacity of the black box can be stored in a storage device of the black box, there is a limit in recording time for continuously storing video data. Therefore, when the video quality and quality of the video are stored in the same way, a situation may occur in which the image of the important accident moment that is actually needed may not be stored.

As a conventional technology for solving such a problem, Patent Document 1 proposed in the following prior art document records a camera image of a black box in a storage, but the luminance level of the camera image, the signal level of the input audio, and the input audio When an event of a special situation is acquired by one or more of the frequency patterns, by recording at least one of the recording quality, resolution, and the number of frames of the camera image, the limited storage capacity of the storage can be used more efficiently. An apparatus and method for controlling video recording in a vehicle black box are disclosed.

Patent document 2 records a camera image of a black box in storage, but when a vehicle congestion that is likely to cause a vehicle accident on a driving path is detected, patent document 2 increases the recording quality, resolution, and the number of frames of the camera image to increase the recording. The present invention discloses an apparatus and method for controlling video recording in a black box for a vehicle, which enables more efficient use of the limited storage capacity of the storage.

Patent document 3 captures driving images by changing the frame rate, exposure time, and sensitivity to reflect the current driving speed of the vehicle, so that an image having excellent discrimination ability can be obtained at high speeds, and the vehicle black can efficiently use memory at low speeds. Disclosed is a method of photographing external images of a box and a vehicle.

In order to efficiently use the storage device of a vehicle black box, the above-mentioned conventional patent documents are used to determine a certain event (collision, sudden brake, etc.) occurrence, to detect a specific situation (vehicle congestion), and to determine a speed change. Disclosed are an apparatus and a method for changing the number of frames to efficiently use a limited storage capacity of a storage device.

However, in some conventional technologies, since the image quality of the recorded video is changed by using an external device such as a navigation device or a smartphone, there is a possibility that the image quality cannot be changed when communication between devices is not possible. In addition, a specific event mentioned in the prior art, a specific situation such as a traffic jam, a speed change, etc. may not reflect all important accident moments, and an additional device may be required to detect a specific event, a specific situation, a speed change, and the like. Therefore, it is necessary to efficiently predict various accident risk areas and change the image quality or the quality of the recorded video.

In the prior art, by using data such as position, speed, and time received from a radio positioning device such as GPS, and basic data of a map for a high accident area stored in a black box, when the vehicle passes the accident risk area, the black box No device or method for changing and storing the image quality or the quality of the image stored in the device is disclosed.However, changing the image quality or the quality of the image stored in the black box using GPS data and the basic map data effectively saves the accident risk area. It can be an alternative to predict and use the storage capacity of the black box storage more efficiently.

KR 10-2011-0087525 A 2011.08.03. KR 10-1015371 B1 2011.02.10. KR 10-2011-0047482 A 2011.05.09.

Accordingly, an object of the present invention is to efficiently store images in the black box by reflecting various accident risk situations by the black box alone without an external connection device, thereby storing the black box due to the high-capacity image data recorded in high quality in an unnecessary shooting section. To overcome the storage capacity limitations of the device.

The present invention effectively predicts and reflects various accident risk situations by using data such as location, speed, and time received from a radio positioning device such as GPS, and basic data of a map for a region of high accident risk stored in a black box, Vehicle black box and its video storage that can save more video data of important moment by efficiently utilizing black box storage device by saving image data by changing image quality or quality of recorded video when the vehicle passes the accident risk area To provide a way.

In order to solve the above technical problem, the present invention provides a navigation data receiving unit for receiving navigation data including a location, a map basic data storage unit for storing map data of a specific region, and a position received from the navigation data receiving unit for the map basic data. A control unit which determines whether the storage unit is the specific region, and controls to change the recorded image quality to a preset image quality when the current location is the specific region, an image receiving unit which captures an image at the changed image quality, and the image receiving unit It provides a vehicle black box including a storage unit for storing the image taken by.

The present invention also provides a first step of receiving navigation data including a location; a second step of determining whether a location received in the first step is a specific area stored in a map basic data storage unit; A third step of changing the recorded image quality to a preset image quality if the location is the specific region, a fourth step of capturing the image at the image quality specified in the previous step, and a fifth step of storing the image photographed at the fourth step It provides a method of storing an image of a vehicle black box comprising the step.

The present invention is recorded by using the data such as position, speed, time, etc. received from the radio positioning device such as GPS and the basic data of the map for the area of high risk of accident stored in the black box, when the vehicle passes the accident risk area By providing a vehicle black box that stores image data by changing the quality of the image and a method of storing the image, the black box storage device can be efficiently stored by storing more high-quality image data at important moments while effectively predicting and reflecting various accident risk situations. It has the effect to utilize.

In addition, by combining navigation data such as location, speed, and time, and including map data to prevent unnecessary high-quality video recording in addition to the accident risk zone, the map basic data storage includes a black box storage with limited storage capacity. It has the effect of utilizing the device even more efficiently.

1 is a block diagram of a vehicle black box according to an embodiment of the present invention.
FIG. 2 is a diagram for describing in detail map data stored in a map basic data storage unit of FIG. 1; FIG.
Figure 3 is a block diagram of a vehicle black box according to another embodiment of the present invention.
4 is a view for explaining a situation set as an event.
5 is an image storing method of a vehicle black box according to another embodiment of the present invention.
6 is an image storing method of a vehicle black box according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 to 3, the vehicle black box of the present invention includes a navigation data receiver 100, an image receiver 110, a voice receiver 120, a controller 130, a map basic data storage 140, and storage. The unit 150 and the attachment unit 160 is included.

The navigation data receiver 100 receives navigation data including a location, a speed, a time, and the like, and receives the navigation data by wired or wirelessly connecting an external device such as a navigation device or a smartphone mounted in a vehicle, or receives a GPS receiver. In addition, a radio positioning device receiver such as a Galileo receiver or a GLONASS receiver may be built in to receive navigation data.

The map basic data storage unit 140 stores map data of a specific region. As shown in FIG. 2, the map data of the specific region stored in the map basic data storage unit 140 includes an accident occurrence section, a speeding section, and a traffic jam. Include map data for intervals, irregularities, child protection zones, and other hazards. The other dangerous section includes a construction section, a rockfall section, a section designated by the user, etc. In addition, the map basic data storage unit 140 adds map data necessary to efficiently use the storage capacity of the storage unit 150. Can be stored as As such, various map data may be stored in the map basic data storage 140, and various map data selected from traffic accident statistics or various user's experiences may be stored.

The image receiving unit 110 captures an image with the image quality specified by the control unit 130. The image receiver 110 includes a camera for capturing an image, and a digital camcorder for capturing a video is generally used.

The voice receiver 120 records the inside and outside voices of the vehicle. The voice receiver 120 generally includes a microphone for voice recording.

The storage unit 150 stores the image data photographed by the image receiving unit 110 and the audio data recorded by the audio receiving unit 120. The storage unit 150 is used by a storage medium that can be built in or external to a vehicle black box to store data. Examples of such storage media include Secure Digital Card, Micro Secure Digital Card, Flash Memory, Solid State Drive, HDD (Hard Disc Drive) and USB Memory (Universal Serial). Bus), and various types of digital storage media that can be connected to a vehicle black box are available.

The attachment part 160 shown in FIG. 3 attaches the vehicle black box to the inside of the vehicle. In general, the user attaches the vehicle black box using the attachment unit 160 to a location that is good for photographing a situation around the vehicle.

The controller 130 determines whether the location received by the navigation data receiver 100 is the specific area of the map basic data storage 140, and changes the recorded video quality to a preset image quality when the current location is the specific area. To control. In addition, the controller 130 may control to change the image quality according to two or more data selected from the position, the speed, and the time received by the navigation data receiver 100 in addition to the current position data. By changing the image quality recorded in consideration of various navigation data in addition to the location, it is possible to more efficiently utilize the storage capacity of the storage unit 150. In addition, the GPS time can be used to automatically correct the time even if the time information is misaligned.

In order to change the image quality, the controller 130 needs to consider a screen resolution indicating the precision of the screen and a frame per second (fps) which is the number of still images captured per second to implement a video. .

The resolution is divided into progressive scanning and interlaced scanning according to the scanning method. In order to display the resolution, the number of vertical scanning lines is indicated by numbers, and p is displayed for sequential scanning and i is displayed for interlaced scanning. For example, 720p and 1080i represent a high definition (HD) resolution, and 1080p represents a full definition (high definition) resolution.

The frame rate represents the number of still images taken per second, that is, the number of frames. When the accident situation or precise situation analysis is required, the number of frames per second must be sufficient, so it must be taken into account when taking an image. However, since a larger frame rate increases the capacity of the image data, an appropriate frame rate may be selected according to a situation so that the storage capacity of the storage unit 150 may be effectively used.

In the present invention, the control unit 130 controls to change the resolution (resolution) and / or frame rate (fps: frame per second) to change the image quality, the resolution and the frame rate is the setting screen of the vehicle black box It can be preset by the user. Basically, in the present invention, in order to efficiently use the storage capacity of the storage unit 150, map data of a region having a high risk of accident is stored in the map basic data storage unit 140, and the controller 130 is configured to map the current location. In the case of an accident occurrence section, a speeding section, a child protection zone, and other dangerous sections stored in the data storage unit 140, the control is performed to increase the resolution and / or frame rate of the recorded video. In addition, the controller 130 controls to reduce the resolution and / or frame rate of the recorded video when a relatively high quality video recording is not required. An example of such image quality change is as follows.

General section 720p / 30fps setting-> Accident multiple section 1080p / 30fps setting

General section 720p / 30fps setting-> Normal stagnation section 720p / 15fps setting

General Section 720p / 30fps Settings-> Parental Control Area 1080p / 30fps Settings

Speed 40 km / h or less 720p / 15 fps setting-> Speed 40 km / h or more 1080p / 15 fps setting

In general, the vehicle black box designates a specific event situation, and when such an event situation occurs, the image quality is recorded by increasing the image quality. In the present invention, the control unit 130 determines the section that does not require event recording and automatically generates an event. Control to turn off. By preventing unnecessary event recording that is continuously loaded into the vehicle black box, the storage capacity of the storage unit 150 can be utilized more efficiently.

As shown in FIG. 4, the event includes a shock or crash situation, a speeding situation, a sudden deceleration situation, a rapid acceleration situation, and an external noise change situation, and a section requiring no event recording is an uneven section, a mountain section, or an unpaved road section. You can specify to include any one or more. The controller 130 of the vehicle black box uses the map data of the map basic data storage unit and an additional sensor output (for example, an accelerometer, a gyro sensor, etc.) to determine a section that does not require event recording by itself and automatically executes an event. Control to turn off. In addition, the controller 130 controls to record an image by increasing the image quality in a region or a tourism mode designated by the user. When a vehicle passes a famous tourist attraction or a scenic spot, it can be recorded as a high-quality video by designating a tourist mode so that it can automatically record the desired surroundings while driving. An example of such an operation is as follows.

If only the fluctuation of the z-axis sensor value in the uneven section is severe-> Unnecessary event off using 멥 information

Event off on mountain and dirt road-> Event on normal road

General section 720p / 30fps setting-> Tourism mode 1080p / 30fps setting

Referring to FIG. 5, the method for storing an image of a vehicle black box according to the present invention includes a first step (S1 step) of receiving navigation data including a location, a speed, and a time, and storing the map basic data in the location received in the first step. A second step (S2) of determining whether it is a specific area stored in the unit 140; a third step of changing the recorded video quality to a preset image quality when the current location is the specific area as a result of the determination of the second step (S3); Step), a fourth step (S4 step) of capturing an image with the image quality specified in the previous step, a fifth step (S5 step) of storing the image data photographed in the fourth step, and confirming the power-off of the vehicle black box If the power is turned off, the operation is terminated. If the power is not turned off, the sixth step (S6) proceeds to the first step. If the current location is not the specific area, the image quality is recorded. Merlin set to remain (Normal) image quality, and a seventh step (Step S7), which proceeds to the fourth step. The normal image quality may be preset by the user as an image quality determined by a default resolution and a default frame rate set to record an image when driving on a general road section.

In the first step, the vehicle black box is connected to an external device by wire or wirelessly to receive navigation data, or internally receives a GPS receiver, a Galileo receiver or a GLONASS receiver to receive navigation data.

The map data of the specific area stored in the map basic data storage unit 140 includes map data for an accident occurrence section, a speeding section, a regular traffic congestion section, an uneven section, a child protection zone, and other dangerous sections, and the other dangerous sections. Includes a construction section, a rockfall section, a user-designated section, and the like, and in addition, the map basic data storage 140 may further store map data necessary for efficiently utilizing the storage capacity of the storage 150. .

In the third step, the control unit 130 of the vehicle black box controls to change the image quality according to two or more data selected from the position, the speed, and the time received in the first step. In addition, in the third step, the controller 130 of the vehicle black box controls to change the resolution or frame rate (fps) to change the image quality, and the resolution and the frame rate are preset by the user. It is possible. In addition, in the third step, the control unit 130 of the vehicle black box controls to increase the resolution and / or frame rate of the recorded video when the current location is an accident accident section, a speeding section, a child protection zone, or another dangerous section. do.

In the third step, the control unit 130 of the vehicle black box additionally determines a section that does not require event recording and controls the event to be turned off (see step S30 of FIG. 6), so that an unnecessary event is continuously loaded into the vehicle black box. By preventing the recording, the storage capacity of the storage unit 150 can be utilized more efficiently. The section that does not require event recording includes any one or more of uneven section, mountain section, unpaved road section, the event includes a shock or crash situation, speeding situation, rapid deceleration situation, rapid acceleration situation, external noise change situation do.

100: navigation data receiver
110: video receiver
120: voice receiver
130:
140: map basic data storage unit
150:
160: attachment portion

Claims (21)

A navigation data receiver configured to receive navigation data including a location;
A map basic data storage unit for storing map data of a specific region;
A controller configured to determine whether the position received by the navigation data receiver is the specific region of the map basic data storage unit and to change the recorded image quality to a preset image quality when the current position is the specific region;
An image receiving unit capturing an image at an image quality changed by the controller;
A storage unit which stores the image data photographed by the image receiving unit;
Car black box comprising a. The method of claim 1,
The navigation data received by the navigation data receiver further includes a speed and time. The method of claim 1,
And the controller controls to change a resolution and / or a frame per second (fps) to change the image quality. The method of claim 3,
The resolution and the frame rate of the vehicle black box can be preset by the user. The method of claim 1,
The map data of the specific region stored in the map basic data storage unit includes a map data for accident accident section, speeding section, stagnation congestion section, uneven section, child protection zone, other dangerous section. The method of claim 5,
The other dangerous section is a vehicle black box including a construction section, rockfall section, user-specified section. The method of claim 5,
The control unit may increase the resolution and / or frame rate of the recorded video when the current location is an accident multiple section, speeding section, child protection zone, other dangerous section. The method of claim 1,
The control unit controls to turn off the event by determining the section that does not require event recording,
The section that does not require event recording includes any one or more of uneven section, mountain section, dirt road section,
The event includes a vehicle black box including a shock or crash situation, an overspeed situation, a sudden deceleration situation, a rapid acceleration situation, and an external noise change situation. The method of claim 2,
And the control unit controls to change the image quality according to two or more pieces of data selected from a position, a speed, and a time received by the navigation data receiver. The method of claim 1,
The navigation data receiver connects to an external device in a wired or wireless manner to receive navigation data, or internally receives a GPS receiver, a Galileo receiver or a GLONASS receiver to receive navigation data.
A voice receiver configured to record internal and external voices of the vehicle;
An attachment part attaching the vehicle black box to a vehicle interior;
Car black box further comprising a. A first step of receiving navigation data including a location;
A second step of determining whether the location received in the first step is a specific area stored in a map basic data storage unit;
A third step of changing the recorded video quality to a preset image quality when the current location is the specific region as a result of the determination of the second step;
A fourth step of capturing an image with the image quality specified in the previous step;
A fifth step of storing the image data photographed in the fourth step;
Image storage method of a vehicle black box comprising a. 12. The method of claim 11,
A sixth step of checking the power off of the vehicle black box and ending when the power is turned off, and proceeding to the first step if the power is not turned off;
A seventh step of setting the image quality to be recorded as the normal image quality if the current location is not the specific region as the determination result of the second step, and proceeding to the fourth step;
Further comprising:
The normal image quality is the image storage method of the vehicle black box is the image quality determined by the default resolution and the default frame rate is set to record the image when driving on a normal road section. 12. The method of claim 11,
The navigation data received in the first step further comprises a speed and time image storage method of a vehicle black box. 12. The method of claim 11,
In the third step, the control unit of the vehicle black box is controlled to change the resolution and / or frame rate (fps: frame per second) in order to change the image quality. 15. The method of claim 14,
The resolution and the frame rate is an image storage method of a vehicle black box that can be preset by the user. 12. The method of claim 11,
The map data of the specific region stored in the map basic data storage unit includes an image storing method of a black box for a vehicle including map data on an accident occurrence section, a speeding section, a standing congestion section, an uneven section, a child protection area, and other dangerous sections. . 17. The method of claim 16,
The other dangerous section includes a construction section, rockfall section, the image storage method of the vehicle black box including a user-designated section. 17. The method of claim 16,
In the third step, the control unit of the vehicle black box stores an image of the vehicle black box which increases the resolution and / or frame rate of the recorded video when the current location is an accident multiple section, a speeding section, a child protection zone, or another dangerous section. . 12. The method of claim 11,
In the third step, the control unit of the vehicle black box determines the section that does not require event recording and controls to automatically turn off the event,
The section that does not require event recording includes any one or more of uneven section, mountain section, dirt road section,
The event may include a shock or crash situation, an overspeed situation, a sudden deceleration situation, a rapid acceleration situation, and an external noise change situation. The method of claim 13,
The control method of the vehicle black box in the third step, the image storage method of the vehicle black box to control to change the image quality according to the two or more data selected from the position, speed, and time received in the first step. 12. The method of claim 11,
In the first step, the vehicle black box is connected to an external device in a wired or wireless manner to receive navigation data, or a GPS black box, a Galileo receiver, or a GLONASS receiver internally receives the navigation data. How to save video.

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