KR101655751B1 - Apparatus and method for controlling video record in car black box - Google Patents

Abstract

An apparatus and method for controlling image recording in a vehicle black box according to the present invention are applied to a vehicle black box or the like which is connected to a car navigation system through wired communication or wireless communication, When an event of a special situation is acquired by at least one of the luminance level of the camera image, the signal level of the input audio, and the frequency pattern of the input audio, at least one of the recording image quality, resolution, The storage capacity of the storage can be more efficiently used and the cause of a vehicle accident occurring in a special situation such as immediately after passing through a tunnel or entering a congested road section or generating a skid mark It is possible to accurately identify the vehicle And when the storage capacity can be improved.

Description

[0001] Apparatus and method for controlling video recording in a car black box [

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an apparatus and method for controlling image recording in a black box for a vehicle, and more particularly, to an image recording control apparatus and method applied to a vehicle black box or the like used for connection to a car navigation system via wired communication or wireless communication .

With the opening of the Internet network and the revision of laws related to location data, a location based service (LBS) related industry is being activated. As a field of location-based services, a navigation-related industry for automobiles that locates the current position of a vehicle or the like equipped with a device or guides a route to a destination is rapidly being activated.

On the other hand, there is an increasing need to provide objective data in order to judge the percentage of negligence according to the responsibility of the accidents that occur during the stopping or operation of the vehicle. Accordingly, a vehicle black box capable of providing objective data is used. However, the conventional vehicle black box can only provide simple and plain data on the state of the vehicle, and thus can not effectively respond to user's needs.

For example, in a vehicle black box connected to a car navigation system through a wired communication or a wireless communication, a camera image is recorded in the storage, and the luminance level of the camera image, the signal level of the input audio, A video recording of a black box for a vehicle in order to record at least one of a recording image quality, a resolution, and a frame number of the camera image by acquiring an event of a special situation by at least one of a frequency pattern, And to provide a control apparatus and method.

A video recording control apparatus in a black box for a vehicle according to a first aspect of the present invention includes: a storage unit for recording and storing camera images; And when the brightness level of the camera image has changed from a high level to a low level and then again to a previous high level after a predetermined time has elapsed, it is determined that the tunnel image passes through the tunnel of the vehicle, Resolution, and the number of frames.

A method of controlling image recording in a vehicle black box according to a second aspect of the present invention is a method of controlling image recording in a vehicle black box, When the vehicle returns to the previous high level, it is judged that the vehicle passes through the tunnel of the first stage; And a second step of increasing at least one of a recording image quality, a resolution, and a frame number of the camera image according to the discrimination result.

An apparatus and method for controlling image recording in a vehicle black box according to the present invention are applied to a vehicle black box or the like which is connected to a car navigation system through wired communication or wireless communication, When an event of a special situation is acquired by at least one of the luminance level of the camera image, the signal level of the input audio, and the input audio frequency pattern, at least one of the recording image quality, the resolution, The storage capacity of the storage can be more efficiently used and the cause of a vehicle accident occurring in a special situation immediately after passing through a tunnel or in a congested road section entry or a skid mark can be more accurately It is possible to distinguish a car black box And it is possible to improve the storage performance.

1 is a diagram of a navigation system in accordance with an embodiment of the present invention.
2 is a diagram of a navigation system according to another embodiment of the present invention.
Fig. 3 is a block diagram of the vehicle navigation system shown in Fig. 1. Fig.
4 is a block diagram of the vehicle black box shown in Fig.
5 is a configuration diagram of a communication network including the navigation system shown in Fig.
6 to 10 are views of embodiments of the user selection menu of the present invention.
11 is a view of an embodiment of a part of the configuration of a black box for a vehicle according to the present invention.
Figures 12-14 are views of embodiments in which events are obtained in accordance with the present invention.
15 is a diagram illustrating an embodiment in which the image quality, resolution, and number of frames of the camera image are variably controlled according to the present invention.
16 is a diagram of an embodiment in which a camera image, a microphone voice, a location, and map data are recorded according to the present invention.
17 is a diagram of an embodiment in which a warning message is displayed in accordance with the present invention.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. It is to be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Like reference numerals designate like elements throughout the specification.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Further, numerals (e.g., first, second, etc.) used in the description process of this specification are only an identifier for distinguishing one component from another component

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

1 is a diagram of a navigation system in accordance with an embodiment of the present invention.

As shown therein, the navigation system 10 according to an embodiment of the present invention may include a navigation system 100 for a vehicle and a black box 200 for a vehicle.

The navigation system 10 may refer to a system that notifies the driver and the passenger of the vehicle of various data related to the operation, maintenance, and the like of the vehicle. In a narrow sense, the navigation system 10 may be a vehicle navigation system 100 itself. In a broad sense, the navigation system 10 may include a vehicle navigation system 100 and various electronic devices operating in wired or wireless operation.

That is, it means that the integrated navigation system 10 can be constructed by connecting various electronic devices capable of complementing and enhancing the function of the navigation system 100 for a vehicle. The electronic device capable of configuring the navigation system 10 by being interlocked with the navigation system 100 for a vehicle may be another mobile terminal, a remote control, or the like that can be connected to the mobile communication network.

In addition, there may be a vehicle black box 200 as an electronic device connected to the navigation system 100 for the vehicle and capable of configuring the navigation system 10. The vehicle black box 200 may be provided integrally or separately from the navigation system 100 for a vehicle. In other words, although FIG. 1 shows that the vehicle black box 200 provided separately from the vehicle navigation device 100 is connected through the communication cable 300, the vehicle black box 200 may be integrated with the vehicle navigation device 100 .

The vehicle navigation system 100 may include a display unit 145 provided on the front surface of the navigation housing 191, a navigation operation key 193, and a navigation microphone 195.

The navigation housing 191 forms the appearance of the navigation system 100 for a vehicle. The vehicle navigation system 100 may be exposed to various conditions such as exposure to a high temperature or a low temperature due to seasonal factors or a direct / indirect external shock. The navigation housing 191 may have a purpose of protecting various electronic components in the navigation system 100 of the vehicle from the change of the external environment and making the appearance of the navigation system 100 of the vehicle better. In order to achieve the above object, the navigation housing 191 can be processed by a method of injection-molding a material such as ABS, PC, or engineering plastic reinforced with strength.

The display unit 145 is a part for visually displaying various data. Various data displayed on the display unit 145 may be map data combined with route data or the like, various broadcast screens including DMB broadcasting, or images stored in a memory. The display unit 145 may be physically or logically divided into several.

The physically divided display unit 145 means a case where two or more display units 145 are provided adjacent to each other. The logically divided display unit 145 means a case where a plurality of independent screens are displayed on one display unit 145 physically. For example, when DMB broadcasting is displayed and the route data is displayed in a part of the display unit 145 or a DMB broadcast and a map screen are displayed in a different area from the display unit 145 Lt; / RTI >

The display portion 145 is logically divided to display various data in accordance with a tendency that various functions converge on the navigation system 100 for a vehicle. Further, in order to display various data, the display unit 145 is gradually becoming a large-sized screen.

The entire surface or a part of the display unit 145 may be a touch screen capable of receiving a user's touch input. For example, by touching a function selection button displayed on the display unit 145, the function can be activated. That is, it means that the display unit 145 can be an output unit (140 in FIG. 3) and an input unit (120 in FIG. 3).

The navigation operation key 193 may be provided to execute various functions of the navigation system 100 for a vehicle or to allow a user to input necessary data directly. It is possible to improve the usability by mapping a specific function frequently used to the navigation operation keys 193.

The navigation microphone 195 may be provided to receive sounds including voice and sound. For example, it is possible to execute the specific function of the vehicle navigation device 100 based on the voice signal received by the navigation microphone 195. [ Further, based on the acoustic signal received by the navigation microphone 195, it is possible to detect the current state of the vehicle such as an accident.

The vehicle black box 200 can exchange data with the vehicle navigation system 100 to store data necessary for the accident process of the vehicle and the like. For example, when an accident occurs while the vehicle is in operation, the image data acquired and stored in the vehicle black box 200 may be analyzed to determine the degree of accident and the extent of the accident. The vehicle black box 200 connected to the navigation system 100 for a vehicle can utilize various data stored in the navigation system 100 for a vehicle. For example, it is possible to increase the utility of the vehicle black box 200 by matching the image acquired by the vehicle black box 200 with the map data stored in the vehicle navigation 100.

The vehicle black box 200 can acquire the data of the vehicle during driving and stopping. That is, it is possible not only to shoot a moving image of a vehicle, but also to shoot an image even when the vehicle is stationary. The image quality of the image obtained through the vehicle black box 200 may be constant or changed. For example, it is possible to store a core image while minimizing a required storage space by increasing the image quality before and after occurrence of an accident, and lowering the image quality in a normal case.

The vehicle black box 200 may include a black box camera 222, a black box microphone 224, and an attaching portion 281. [

The black box camera 222 can photograph the outside of the vehicle or the inside of the vehicle. The number of the black box cameras 222 may be one or more. When there are a plurality of black box cameras 222, one can transmit an image captured in a state of being integrated with the vehicle black box 200 and the remaining one attached to each part of the vehicle to the vehicle black box 200 . In the case where the black box camera 222 is a single person, the black box camera 222 may be installed to photograph the front of the vehicle. The image photographed by the black box camera 222 may be stored in the vehicle black box 200 or the vehicle navigation system 100. [

The black box microphone 224 can acquire a sound generated from the inside and the outside of the vehicle. The black box microphone 224 can perform a function similar to the navigation microphone 195 described above.

The attachment portion 281 can fix the vehicle black box 200 to the vehicle. The attachment portion 281 may be a suction plate capable of attaching the vehicle black box 200 to the front glass of the vehicle or a fixing device capable of engaging with a room mirror or the like of the vehicle.

FIG. 2 is a diagram of a navigation system according to another embodiment of the present invention, and only a portion different from an embodiment of the present invention will be described.

In the navigation system 10 according to another embodiment of the present invention, the navigation system 100 for a vehicle and the black box 200 for a vehicle may be connected wirelessly. That is, the vehicle navigation system 100 and the vehicle black box 200 are separate devices, meaning that there is no physical connection device between them. The vehicle navigation system 100 and the vehicle black box 200 can communicate through Bluetooth, Radio Frequency Identification (RFID), IrDA (Infra Data Association), UWB (Ultra WidBand), ZigBee .

Fig. 3 is a block diagram of the vehicle navigation system shown in Fig. 1. Fig.

The vehicle navigation system 100 according to an embodiment of the present invention includes a first communication unit 100, an input unit 120, a first sensing unit 130, an output unit 140, A first storage unit 150, a power supply unit 160, and a first control unit 170.

The first communication unit 100 may be provided for the vehicle navigation device 100 to communicate with other devices. The first communication unit 100 is a device that acquires position data through a GNSS (Global Navigation Satellite System), a position data module 111, a wireless Internet module 113, and a broadcast transmission position data module 111 . GNSS means a navigation system capable of calculating the position of a receiving terminal using a radio wave signal received from an artificial satellite (20 in FIG. 5). A specific example of GNSS is a GPS (Global Positioning System), a Galileo, a GLONASS (Global Orbiting Navigational Satellite System), a COMPASS, an Indian Regional Navigational Satellite System (IRNSS), a Quasi-Zenith Satellite System . The position data module 111 of the vehicle navigation system 100 according to the embodiment of the present invention may receive the GNSS signal serviced in the area in which the vehicle navigation system 100 is used and obtain position data.

The wireless Internet module 113 is a device that accesses the wireless Internet and acquires or transmits data. The wireless Internet that can be accessed through the wireless Internet module 113 may be a wireless LAN (WLAN), a wireless broadband (WIBRO), a world interoperability for microwave access (WIMAX), or a high speed downlink packet access (HSDPA).

The broadcast transmission / reception module 115 is a device for transmitting and receiving broadcast signals through various broadcasting systems. The broadcasting system that can transmit and receive through the broadcasting transmission and reception module 115 may be a digital multimedia broadcasting terrestrial (DMBT), a digital multimedia broadcasting satellite (DMBS), a media forwarding link (MediaFLO), a digital video broadcasting handheld (DVBH) Integrated Services Digital Broadcast Tereestrial). The broadcast signal transmitted / received through the broadcast transmission / reception module 115 may include traffic data, living data, and the like.

The short-range communication module 117 is a device for short-range communication. The short range communication module 117 can communicate via Bluetooth, Radio Frequency Identification (RFID), Infra Data Association (IrDA), Ultra WidBand (UWB), ZigBee, or the like as described above.

The first wired communication module 119 is an interface device capable of connecting the vehicle navigation device 100 with other devices by wire. The first wired communication module 119 may be a USB module capable of communicating via a USB port. The vehicle navigation system 100 according to one embodiment of the present invention and other embodiments can communicate with other devices via the short-range communication module 117 or the first wired communication module 119 as needed. Furthermore, when communicating with a plurality of devices, it is possible that one communicates with the short-range communication module 117 and the other communicates with the first wired communication module 119.

The input unit 120 is a device that converts a physical input from the outside of the vehicle navigation system 100 into a specific electric signal. The input unit 120 may include a user input module 121 and a first microphone module 123.

The user input module 121 is a key input device that a user can input through a push operation or the like. The user input module 121 can be implemented with a navigation operation key (193 in Fig. 1) outside the housing (191 in Fig. 1) of the vehicle navigation device 100. [

The first microphone module 123 is a device for receiving user's voice and sound generated from the inside and the outside of the vehicle. The first microphone module 123 may be implemented as a navigation microphone 195 outside the housing 191 of the navigation system 100 of the vehicle 100.

The first sensing unit 130 is a device capable of sensing the current state of the navigation system 100 for a vehicle. The first sensing unit 130 may include a first motion sensing module 131 and an optical sensing module 133.

The first motion sensing module 131 may sense movement of the navigation system 100 in the three-dimensional space. The first motion sensing module 131 may include a three-axis geomagnetic sensor and a three-axis acceleration sensor. The movement data obtained through the first motion sensing module 131 can be combined with the position data acquired through the position data module 111 to calculate a more accurate trajectory of the vehicle with the vehicle navigation device 100 attached thereto.

The optical sensing module 133 is a device for measuring the ambient illuminance of the navigation system 100 for a vehicle. The brightness of the display unit 145 can be changed to correspond to the ambient brightness using the illumination data acquired through the optical sensing module 133. [

The output unit 140 is a device for the vehicle navigation device 100 to output data. The output unit 140 may include a display module 141 and an audio output module 143.

The display module 141 is a device for outputting data that can be visually recognized by the vehicle navigation device 100. [ The display module 141 may be implemented as a display unit 145 (FIG. 1) provided on the front surface of the housing 191 (FIG. 1) of the navigation system 100 for a vehicle. If the display module 141 is a touch screen, the data output unit 140 and the input unit 120 can be simultaneously operated as described above.

The audio output module 143 is a device for outputting data that can be audibly perceived by the vehicle navigation system 100. The audio output module 143 may be implemented as a speaker that expresses the sound that the vehicle navigation device 100 should inform the user including the driver.

The first storage unit 150 stores data necessary for the operation of the vehicle navigation system 100 and data generated by the operation. The first storage unit 150 may be a built-in memory or a detachable memory in the navigation system 100 for a vehicle. The data necessary for the operation of the navigation system 100 for an automobile may include an OS, a route search application, a map, and the like. The data generated by the operation of the navigation system 100 for the vehicle may be the searched route data, the received image, and the like.

The power supply unit 160 is a device for supplying power necessary for the operation of the navigation system 100 for a vehicle or the operation of another device connected to the navigation system 100 for a vehicle. The power supply unit 160 may be a battery built in the vehicle navigation system 100, or a device that receives power from an external power source such as a vehicle. Also, the power supply unit 160 may be implemented as a first wired communication module 119 according to the type of the power supply, or may be implemented as a wirelessly supplied device.

The first control unit 170 is a device for outputting a control signal for controlling various operations of the navigation system 100 for a vehicle. Further, the first control unit 170 may output a control signal for controlling another device connected to the navigation system 100 for the vehicle.

4 is a block diagram of the vehicle black box shown in Fig.

The vehicle black box 200 according to an exemplary embodiment of the present invention includes a second communication unit 210, an AV input unit 220, a user input unit 230, a second sensing unit 240, And a second storage unit 250.

The second communication unit 210 is a device capable of communicating with the first communication unit 110 of the vehicle navigation system (100 of FIG. 3) or another device. The second communication unit 210 may include a second short-range communication module 211 and a second wired communication module 213. The second short-range communication module 211 may communicate with the first short-range communication module 117 (FIG. 3), and the second short-range communication module 211 may communicate with the first wired communication module 119.

The AV input unit 220 is a device capable of acquiring sounds and images. The AV input unit 220 may include a camera module 221 and a second microphone module 223.

The camera module 221 can acquire images of inside and outside of the vehicle on which the vehicle black box 200 is mounted. It is as described above that the camera module 221 can be implemented as a black box camera (222 in FIG. 1).

The second microphone module 223 can acquire sounds generated from the inside and the outside of the vehicle. The sound obtained through the second microphone module 223 can be used to control the operation of the vehicle black box 200. [ For example, when the second microphone module 223 receives stronger sound than usual, the camera module 221 can acquire a higher resolution image. The second microphone module 223 may be implemented as a black box microphone 224.

The user input unit 230 is a device provided for the user to directly operate the operation of the black box 200 for a vehicle. The user input unit 230 may be implemented as a push button (not shown) provided outside the black box 200 for a vehicle. However, if the vehicle black box 200 is controlled by the control signal of the first control unit 170 of FIG. 3 (100 of FIG. 3), the user input unit 230 may control the vehicle black box 200 May be excluded.

The second sensing unit 240 is a device that can sense the current state of the vehicle black box 200. The second sensing unit 240 may include a second motion sensing module 241 and performs an operation similar to the first motion sensing module 131 of FIG. 3 except for the installed position. If the second sensing unit 240 is provided in the vehicle black box 200, it may not receive data related to the motion of the three-dimensional space from the navigation system 100 for the vehicle.

The second storage unit 250 stores data necessary for the operation of the vehicle black box 200 and data generated by the operation. The data stored in the second storage unit 250 may be an image acquired through the camera module 221. The second storage unit 250 may be embedded in the vehicle black box 200 or may be a removable memory in the vehicle black box 200.

The second control unit 270 is a device for outputting a control signal for controlling various operations of the vehicle black box 200. The second control unit 270 may be affected by the control signal of the first control unit 170 (Fig. 3) of the vehicle navigation system 100 (Fig. 3). That is, the second control unit 270 may be dependent on the first control unit 170 (FIG. 3).

5 is a configuration diagram of a communication network including the navigation system shown in Fig.

As shown, the navigation system 10 according to an embodiment of the present invention can be connected to various communication networks and other electronic devices 61-64.

The navigation system 10 can calculate the current position using the radio wave signal received from the satellite 20. Each of the satellites 20 can transmit L-band frequencies having different frequency bands. The navigation system 10 can calculate the current position based on the time taken for the L-band frequency transmitted from each satellite 20 to reach the navigation system 10. [

The navigation system 10 can wirelessly connect to the network 30 through the first communication unit 110 (Fig. 3) 110 via the control station 40 (ACR), the base station 50, and the RAS. When the navigation system 10 is connected to the network 30, the electronic devices 61 and 62 connected to the network 30 can also be indirectly connected to exchange data.

The navigation system 10 may indirectly connect to the network 30 through another device 63 having a communication function. For example, when a device capable of connecting to the network 30 is not provided in the navigation system 10, another device 63 having a communication function via the first short-range communication module 117 (FIG. 3) It means that it can communicate.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an image recording control apparatus and method in a black box for a vehicle according to the present invention will be described in detail.

First, the first controller 170 of the vehicle navigation system 100 and the second controller 270 of the vehicle black box 200 perform an interface operation through a local communication module or a wired communication module.

The first controller 170 of the car navigation system operates the display module 141 to control the user navigation menus available in the vehicle navigation system 100 and the vehicle black box 200 as shown in FIG. As shown in FIG.

Meanwhile, the list displays various user selection menus such as a photo album, a video karaoke room, a black box live view, a black box video player, a black box configuration, and the like. For example, When the item is selected, the black box control application program (Black Box Control APP) is executed and basic setting, event setting, acceleration sensor sensitivity setting, self diagnosis, image setting, file backup guidance, And so on.

When the sub menu item of the basic setting shown in FIG. 6 is selected, for example, as shown in FIG. 7, a menu item for selecting one of the normal image quality, intermediate image quality, And menu items for selecting whether or not to automatically delete video files and use variable frames and sound recordings are displayed.

On the other hand, for example, when the sub menu item of the image setting of FIG. 6 is selected, menu items capable of adjusting contrast, brightness, sharpness, color density, color, and the like are displayed as shown in FIG. , An image photographed by the camera module 221 of the vehicle black box is displayed on a part of the menu screen so that the user can appropriately adjust the brightness and brightness while viewing the image.

When a submenu item of the acceleration sensor sensitivity setting of FIG. 6 is selected, for example, as shown in FIG. 9, a menu item for adjusting the sensitivity of the acceleration sensor to sensitivity, normal, insensitivity, (+/-) for allowing the user to arbitrarily up / down the sensitivity of the acceleration sensor when the user-set menu item is selected, and a bar-shaped indicator Indicator) is displayed, and a view or hide menu item for the acceleration sensor indicator is displayed.

For example, when the sub menu item of the event setting of FIG. 6 is selected, menu items of event user setting and event detail description are displayed as shown in FIG. 10, Menu items such as impact, overspeed, rapid deceleration, rapid acceleration, and external noise are displayed, and an adjustment button (+) for allowing the user to arbitrarily set overspeed speed setting, rapid acceleration sensitivity setting, / -).

On the other hand, when a menu item of the event detail description is selected on the event setting menu screen, when an event such as an impact, overspeed, rapid deceleration, rapid acceleration, or external noise occurs, A message is displayed to inform the second storage unit 250 of the box that the image is to be recorded.

When the user normally performs the event setting operation through the above-described series of processes, the first controller 170 of the navigation system for the vehicle determines whether the set value Or share with each other.

Meanwhile, the second controller 270 of the vehicle black box variably controls the image quality, resolution, and the number of frames of the image photographed by the camera module 221 with reference to the event set values set as described above, And records it in the storage unit 250.

For example, when an event occurs in a special situation such as immediately after passing through a tunnel, or when entering a congested road section, or when a skid mark is generated, The resolution, and the number of frames, and when the event is canceled, the image is readjusted to the image quality, resolution, and frame number of the previously set image and recorded.

If an event occurs in the special situation as described above, the second control unit 270 of the vehicle black box may select at least one of the first microphone module 123 of the vehicle navigation device and the second microphone module 223 of the vehicle black box A voice of a microphone received through one or more of them is recorded together with the image.

When an event occurs in the special situation as described above, the second control unit 270 of the vehicle black box displays the position and the map output from the position data module 111 of the vehicle navigation device and the first storage unit 150, The event may be transmitted to the second controller 270 after being detected by the first controller 170 of the vehicle navigation system.

11 shows a configuration of an embodiment of a video recording control apparatus for a vehicle black box according to the present invention. For example, the control unit 270 of the vehicle black box includes a video encoder 271, A data encoder 273, an event detector 274, a controller 275, a mux 276, and the like.

In the video encoder 271, the quality of the image photographed by the camera module 221, resolution, and the number of frames (FPS: Frame, And the video encoder 271 encodes the video data in a format suitable for the second storage unit 250. The video encoder 271 encodes the video data in the camera module 221 .

According to the operation of the controller 275, the audio encoder 272 outputs the microphone voice output by the second microphone module 223 to the audio of the format suitable for the second storage unit 250, The audio encoder 272 may be included in the second microphone module 223 and the audio encoder 272 may include a first microphone module 123 for vehicle navigation, May be encoded into audio data in a format suitable for the second storage unit (250).

The data encoder 273 may store position and map data output from the position data module 111 and the first storage unit 150 of the vehicle navigation device in accordance with the operation control of the controller 275, 2 storage unit 250. The data encoder 273 may be included in the position data module 111 of the vehicle navigation system, for example.

The event detector 274 analyzes at least one of, for example, a camera image, a microphone input audio, a position and a map data, and sensor data, and transmits the data to the event detector 274 immediately after passing through a tunnel, The event detector 274 may be included in the navigation system 100 for the vehicle 100. In this case, the controller 275 may detect an event, such as a skid mark, And may perform an interface with the first controller 170 of the car navigation system to acquire the event.

4, the event detector 274 detects an acceleration value Va detected by the 3-axis geomagnetic sensor and the 3-axis acceleration sensor included in the second motion sensing module 241, The reference value Ref_Va is determined to be a rapid acceleration or deceleration and generates an event to notify the vehicle collision state. The reference value Ref_Va is, for example, Or may be set to a default value set by an experiment result at the time of manufacture of a vehicle black box, as described above with reference to FIG.

The event detector 274 analyzes the brightness level (Y Level) of the camera image and detects an event in a special situation immediately after passing through the tunnel of the vehicle. For example, As shown in FIG. 12, when the vehicle enters the tunnel, the brightness level of the camera image is detected to be sharply lower than the preset reference brightness level (Y_Ref).

When the vehicle passes through the tunnel after a predetermined time (for example, 3 seconds) has elapsed, the brightness level of the camera image sharply becomes higher than the reference brightness level set in advance. Therefore, in the event detector 274, The brightness level of the camera image which is rapidly changed as shown in FIG. 3B is detected, and the event of the special situation immediately after the vehicle passes through the tunnel is detected.

The event detector 274 analyzes an audio level of audio input through a microphone and detects an event in a special situation when the vehicle enters a congested road section. For example, As shown in FIG. 13, when the vehicle travels on a quiet road section, even if the signal level of the audio inputted through the microphone does not exceed or exceeds the preset reference audio level A_Ref, : T_Ref = 3 seconds).

On the other hand, when the vehicle enters a congested road section where a lot of noise such as an intersection is generated, as shown in FIG. 13, the signal level of the audio inputted through the microphone exceeds the preset reference audio level The event detector 174 analyzes the signal level of the audio input through the microphone as described above, and detects the signal level of the audio signal when the vehicle enters the congested road section An event of a special situation is detected.

The event detector 274 analyzes a frequency pattern of audio input through a microphone and detects an event of a special situation in which a skid mark occurs due to a sudden stop of the vehicle , For example, as shown in Fig. 14, when a skid mark is generated due to a sudden stop of the vehicle, the signal level of the audio inputted through the microphone suddenly exceeds the reference audio level A_Ref set in advance And an audio signal of a specific frequency pattern according to a rapid stop is detected.

For example, the specific frequency pattern may be a non-volatile memory (not shown) such as a flash memory or an EEPROM as an experiment result value that is previously stored in advance through an experiment of rapid break performance of the vehicle or the like, Lt; / RTI >

14, a predetermined frequency pattern (e.g., a Skid Mark Audio Frequency Pattern) of a high frequency component corresponding to a roaring sound generated during a rapid stopping operation is stored in advance in the event detector 274. In this event detector 274, When a frequency pattern of an audio signal coinciding with the specific frequency pattern is detected, an event of a special situation in which a skid mark is generated due to a sudden stop of the vehicle is detected.

If the controller 275 detects an event of a special situation such as immediately after the passage of the tunnel, a congested road section, or a skid mark, the video encoder 271 15, for example, the video encoder 271 increases the quality of a camera image from a normal image quality to a high image quality, You can increase the resolution of the camera image from normal resolution (eg mxn) to high resolution (eg, (m + y) x (n + z), or increase the number of frames per second (FPS) (E.g., n) to a higher number of frames (e.g., n + m).

The controller 275 also controls the operation of the audio encoder 272 when a special event such as immediately after the passage of the tunnel or a congested road section enters or a skid mark is detected as described above, 2 microphone module 223 or the first microphone module 123 of the car navigation system to audio data in a format suitable for recording in the storage unit 250. [

The controller 275 controls the operation of the data encoder 273 so that the position data and the map data output from the position data module 111 and the first storage unit 150 of the vehicle navigation system To be encoded into data in a format suitable for recording in the memory 250.

On the other hand, the video encoder 271, the audio encoder 272 and the data encoder 273 are simultaneously operated by the controller 275 to perform the encoding operation, respectively, or by the controller 275 The data encoded and output by the video encoder 271, the audio encoder 272 and the data encoder 273 may be transmitted to the MUX 276 through a packet ), And outputs a data stream in which video, audio, and data packets are multiplexed to the second storage unit 250. [

For example, as shown in FIG. 16, when no event is generated, the mux 276 outputs video data of a camera image of general image quality in a packet unit, Recording.

On the other hand, when the event occurs, for example, in the MUX 276, the video data of the high-quality camera image, the audio data of the microphone voice, and the data of the position and map data are muxed in units of packets, 2 storage unit 250. [0050] FIG.

Then, when the event is released, the MUX 276 outputs video data of a camera image of a general image quality in units of packets and records the video data in the second storage unit 250, 250 can be more efficiently used.

Further, a camera image, a microphone voice, a position and a map data which are photographed in a special situation such as immediately after the passage of a tunnel, or in a congested road section, or a skid mark are recorded and stored in a more various and efficient manner, It is possible to improve the monitoring and storage performance of the system.

On the other hand, in the controller 275, when an event of the special situation as described above occurs, for example, as shown in FIG. 17, through the interface with the first control unit 170 of the vehicle navigation, A warning message indicating a warning is displayed on the display module 141 or a warning sound is output through the audio output module 143 to naturally induce safe driving of the vehicle.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

10: Navigation system 20: Satellite
30: network 40: control station
50: base station 100: vehicle navigation
110: first communication unit 120: input unit
130: first sensing unit 140: output unit
150: First storage unit 160: Power supply unit
170: First control unit 200: Car black box
210: second communication unit 220: AV input unit
230: user input unit 240: second sensing unit
250: second storage unit 270: second control unit
271: Video encoder 272: Audio encoder
273: Data encoder 274: Event detector
275: Controller 276: Mux

Claims (10)

A video recording control device comprising:
A storage unit for recording and storing camera images;
A video encoder for generating video data corresponding to the camera image;
An audio encoder for generating audio data corresponding to a voice signal; And
And a control unit for generating an event related to the special situation,
Wherein,
And generating a first event corresponding to the occurrence of the special situation, and when the first event occurs, at least one of a recording image quality, resolution, and frame number generated by the video encoder is increased, To store the generated audio data in the storage unit,
The second event is generated when the special situation does not occur or the special situation is released and the audio data generated by the audio encoder is not stored in the storage unit when the second event occurs, The second video data in which at least one of a video quality, a resolution, and a frame number is reduced from one video data is stored in the storage unit,
The special situation may be set in a separate electronic device physically distinct from the video recording control device,
The electronic device includes:
A special situation item including at least one of shock, overspeed, rapid deceleration, rapid acceleration, and external noise is displayed on the image recording control device, and information on a user selected item among the special situation items is displayed To the video recording control device through short-range wireless communication,
Wherein the video recording control device comprises:
Receiving information about the user selected item from the electronic device to update a special situation setting value,
Wherein,
Generates a first event when a special situation corresponding to the special situation setting value occurs, generates a notification signal indicating the occurrence of the special situation,
Wherein the notification signal is a signal used to inform the electronic device of the occurrence of the special situation. The method according to claim 1,
And a data encoder for generating position data corresponding to the position of the vehicle,
Wherein,
And controls whether to store the position data generated by the data encoder in the storage unit according to the generated event. 3. The method of claim 2,
Wherein,
A controller for controlling an operation of at least one of the video encoder, the audio encoder and the data encoder according to the generated event; And
And a multiplexer for multiplexing the data generated in at least one of the video encoder, the audio encoder and the data encoder in packet units and outputting the multiplexed data to the storage unit. The method of claim 3,
Further comprising a three-axis acceleration sensor,
Wherein,
Axis acceleration sensor to a predetermined value to generate an event related to a special situation,
The above-
The first video data, the audio data, and the position data, which are increased in at least one of the recording image quality, the resolution, and the frame number, are muxed in units of packets and output to the storage unit,
And outputting, to the storage unit, second video data in which at least one of a recording picture quality, a resolution, and a frame number is reduced from the first video data when the second event occurs, . 5. The method of claim 4,
The predetermined value is a value
Axis acceleration sensor is a value set to a default sensitivity of the three-axis acceleration sensor or a value set to a sensitivity of a three-axis acceleration sensor by a user. A control method of a video recording control apparatus including a storage unit,
The video encoder generating video data corresponding to the camera image;
The audio encoder generating audio data corresponding to the audio signal;
Generating a first event corresponding to a special situation occurrence;
Generating a second event when the special situation does not occur, or when the special situation is released;
Storing the first video data and the audio data in which the at least one of the recording image quality, the resolution, and the frame number is increased in the storage unit when the first event occurs; And
Storing the second video data in which at least one of a video quality, a resolution, and a frame number is reduced from the first video data, when the second event occurs, without storing the audio data; Including,
The special situation may be set in a separate electronic device physically distinct from the video recording control device,
The electronic device includes:
A special situation item including at least one of shock, overspeed, rapid deceleration, rapid acceleration, and external noise is displayed on the image recording control device, and information on a user selected item among the special situation items is displayed To the video recording control device through short-range wireless communication,
Wherein the video recording control device comprises:
Receiving information about the user selected item from the electronic device to update a special situation setting value,
A method of controlling a video recording control apparatus,
Generating a first event when a special situation corresponding to the special situation setting value occurs and generating a notification signal indicating the occurrence of the special situation,
Wherein the notification signal is a signal used to inform the electronic device of the occurrence of the special situation. The method according to claim 6,
The data encoder generating position data corresponding to the position of the vehicle; And
And controlling whether to store the generated position data according to the generated event. 8. The method of claim 7,
Controlling an operation of at least one of the video encoder, the audio encoder, and the data encoder according to the generated event; And
And outputting data generated in at least one of the video encoder, the audio encoder, and all of the data encoders in a packet unit, and outputting the data to the storage unit. 9. The method of claim 8,
Further comprising a three-axis acceleration sensor,
And comparing the value detected by the three-axis acceleration sensor with a predetermined value to generate an event related to the special situation,
Wherein the outputting step comprises:
The first video data, the audio data, and the position data, which are increased in at least one of the recording image quality, the resolution, and the frame number, are muxed in units of packets and output to the storage unit,
And outputting, to the storage unit, second video data in which at least one of a video quality, a resolution, and a frame number is reduced from the first video data when the second event occurs, on a packet-by-packet basis. 10. The method of claim 9,
The predetermined value is a value
Axis acceleration sensor is a value set to a default sensitivity of the three-axis acceleration sensor or a value set to a sensitivity of a three-axis acceleration sensor by a user.

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