KR20130098005A - Apparatus for video recoding of black box using car and method thereof - Google Patents

Abstract

PURPOSE: An image recording device of a black box for a vehicle is provided to record images for a long time in parking by selectively using a data storage device according to a driving mode and a parking mode and varying an image recording method. CONSTITUTION: An image recording device of a black box for a vehicle comprises a driving signal generating unit (101), a control unit (104), an image processing unit (106), a memory selection unit (107), and a first and a second SD memory slot (108,110). The driving signal generating unit generates a driving signal to determine whether the vehicle is driven or not. The control unit determines a driving mode and a parking mode based on a driving signal generated in the driving signal generation unit. The control unit generates an image processing control signal and a memory selection signal according to the determined mode. The image processing unit processes images obtained by a camera (105) according to the image processing control signal generated in the control unit by separating the images with image qualities. The memory selection unit selects a storage path of the images outputted from the image processing unit according to the memory selection signal generated in the control unit. The first and the second SD memory slot selectively stores the images, which are outputted through the storage path of the images selected by the memory selection unit, in either a first SD memory card (109) or a second SD memory card (111). [Reference numerals] (101a) GPS receiver; (101b) G sensor; (103) Power supply unit; (104) Control unit; (105) Camera; (106) Image processing unit; (107) Memory selection unit; (108) First SD memory slot; (109) First SD memory card; (110) Second SD memory slot; (111) Second SD memory card; (AA) 30 frame; (BB) 5 frame

Description

Apparatus for video recoding of black box using car and method

The present invention relates to an image recording apparatus and a method of a black box for a vehicle, and more particularly, to selectively use a data storage device (SD memory card) according to a driving mode and a parking mode, and to parking a vehicle using a different image recording method. The present invention relates to a video recording apparatus of a vehicle black box and a method for allowing a long time video recording.

As the number of automobiles increases, traffic accidents caused by automobiles inevitably increase. Moreover, the rate of traffic accidents in complex urban areas that provide various traffic accident factors is increasing.

It is not easy to identify the cause of traffic accidents and the perpetrators and victims because the traffic accidents occur in a momentary situation, and it is difficult to determine the exact traffic accidents as most cases are handled according to the on-site situation and testimony of the witnesses. Did.

In particular, traffic accidents on automobile-only roads, such as roads or highways, which are scarcely located, have been frequently damaged by victims being reversed due to wrong traffic accidents.

Recently, a vehicle video recording device (also called a "black box") has been developed and commercialized for recording a vehicle's exterior image to identify the cause of a traffic accident. The technology is actively being developed and discussed in accordance with the box's legislation.

Among them, the technology for a vehicle black box that has been proposed in the Republic of Korea Patent Publication No. 10-0936014 (registered on Dec. 31, 2009) (Invention name: camera integrated vehicle video recording device) (hereinafter, "Prior Art 1 Is abbreviated as "."

The disclosed prior art 1 is a front camera, a rear camera, a built-in microphone, an encoder, a vehicle driving information sensing means, a brake light fuse line, an emergency light fuse line, a sensor interface means, an external memory means, as shown in FIG. And an interface means, an image output module, an internal memory means, a decoder, a speaker, a time information providing unit, a display means, a communication module, and a control means.

The conventional technology 1 configured as described above simply installs the main body to collect and record the front image and the inner image of the vehicle, and the side / rear image thereof, and employs an external memory type to record the image directly to the removable external memory. Thus, it is easy to preserve the image recorded in the memory even in a sudden situation, the user can easily remove the external memory to check the image on the personal computer as well as to easily store the necessary image.

In particular, the prior art 1 determines the recording mode of the image in any one of four modes, such as driving mode, manual mode, stop mode, reservation mode according to the operation mode selected by the user. Here, the driving mode means recording when driving, and manual mode means that recording is not performed when the user does not select recording even when driving, and recording is performed only when the user selects recording. The mode refers to a case in which recording is performed only for a time set by the user, and the stop mode refers to a case in which recording is performed only when a predetermined shock occurs in the vehicle when the vehicle is stopped.

In addition, another technology for a vehicle black box proposed in the prior art is published in Korean Patent Application Publication No. 10-2009-0104300 (2009.10.06. Published) (name of the invention: a vehicle black box having a dual storage structure) (hereinafter , Abbreviated as "Prior Art 2".

The disclosed prior art 2 stores all image data transmitted from a camera mounted on a vehicle and detects a shock applied to the vehicle, a first storage device fixedly installed in the vehicle black box, a second storage device installed to be detached from the vehicle black box, and the vehicle. When the shock detection unit, the shock detection unit detects the impact of the first storage device and the control unit for storing the image data for a predetermined time before and after the accident occurs in the second storage device.

Since the prior art 2 is configured to store the accident-related image data securely in two, it is possible to guarantee the stability, easy to submit as evidence in the event of an accident, and is encrypted and stored to ensure the privacy of the individual.

1. Patent Registration No. 10-0936014 (Registered on Dec. 31, 2009) of Korea Patent Office (Invention: Camera integrated vehicle video recording device) 2. Korean Patent Office Publication No. 10-2009-0104300 (2009.10.06. Published) (name of the invention: a vehicle black box having a dual storage structure)

However, the prior art as described above, there is a disadvantage that does not operate as a black box for the monitoring function when parking. Particularly, in the conventional technique 1, video recording is possible when the vehicle is stopped according to a recording mode that allows recording even when the vehicle is stopped. However, since the operation is performed only when a shock occurs in the vehicle, the function of parking surveillance cannot be performed. There was this.

In addition, the capacity of the SD memory card that is applied to the car black box is usually 32GB, the prior art when recording a video in HD class (30 frames) is short recording time it is impossible to record a lot of time, In particular, in the prior art 1, when the capacity of the SD memory card is exceeded, the original data is overwritten to record the image data, so that only a certain amount of the image data can be recorded so that important image data is lost by overwriting. There are many disadvantages.

In addition, the prior art 2 has the advantage that the accident-related image data can be stored more safely through the dual storage structure, but also this structure is impossible to monitor when parking, the image data and the second storage device recorded in the first storage device Since the image data recorded in the same is the same, the efficiency of the memory device is inferior.

Accordingly, the present invention has been proposed to solve various problems occurring in the related arts and to maximize the efficiency of the memory device.

The problem to be solved by the present invention is to selectively use a data storage device (SD memory card) according to the driving mode and the parking mode, the image recording method of the vehicle black box to enable a long time image recording during parking The present invention provides a recording apparatus and a method thereof.

Another problem to be solved by the present invention is to provide a video recording apparatus and a method of a vehicle black box to enable a long time image recording during parking, to perform a sufficient monitoring function during parking.

Another problem to be solved by the present invention is to provide a video recording device and a method of the vehicle black box to maximize the efficiency of the data storage device by selectively utilizing the data storage device according to the driving mode and parking mode There is.

The "image recording apparatus of the vehicle black box" according to the present invention for solving the above problems,

Driving signal generating means for generating a driving signal for determining whether the vehicle is driven;

A controller for determining a driving mode and a parking mode based on the driving signal generated by the driving signal generating means, and generating an image processing control signal and a memory selection signal according to the determined driving mode or parking mode;

An image processing unit for separating and processing an image acquired by a camera according to an image processing control signal generated by the control unit with an image quality;

A memory selector configured to select a storage path of an image output from the image processor according to a memory selection signal generated by the controller;

And first and second SD memory slots for selectively storing the image output through the storage path of the image selected by the memory selector in one of the first and second SD memory cards.

The driving signal generating means in the above,

It includes a GPS receiver or geomagnetic sensor and an acceleration sensor that receive signals from GPS satellites and generate vehicle position information and acceleration / deceleration information as driving signals, and detects the movement of an object using gravity, and drives the motion detection signal. Characterized in that the G-sensor generated by the signal.

In this case,

The driving mode and the parking mode may be determined based on the acceleration / deceleration information or the motion detection signal included in the input driving signal.

In the above,

According to an image processing control signal generated by the controller, an image acquired by the camera may be extracted in units of 30 frames or in units of 5 frames.

In the above, the memory selection unit,

The storage path of the image output from the image processor is selected as the first SD memory card or the second SD memory card according to the memory selection signal generated by the controller, and is output from the image processor according to the selected SD memory card. The image is transferred to the first SD memory slot or to the second SD memory slot.

The "image recording method of a vehicle black box" according to the present invention for solving the above problems,

(a) determining a vehicle driving mode based on a vehicle driving signal generated by a GPS receiver or a G sensor;

(b) In the driving mode, when the driving mode is selected, the first SD memory card is selected as a storage device for storing the surveillance video, and the surveillance video obtained from the camera is extracted at a high definition level (30 frame units) to the selected first SD memory card. Storing;

(c) In the parking mode, the second SD memory card is selected as a storage device to store the surveillance video, and the surveillance video obtained from the camera is extracted in low quality (5 frames). And storing in the SD memory card.

According to the present invention, since a data storage device (SD memory card) is selectively used according to the driving mode and the parking mode, and the image recording method is different, it is possible to record the video for a long time during parking, so that the vehicle black box can be used as the parking monitoring device. There is an advantage that it can.

In addition, according to the present invention, by allowing a long time image recording during parking, there is an advantage that can fully perform the monitoring function when parking.

Further, according to the present invention, by selectively utilizing the data storage device according to the driving mode and the parking mode, there is an advantage of maximizing the efficiency of the data storage device.

1 is a block diagram of a video recording apparatus of a vehicle black box according to the present invention.
Figure 2 is a flow chart showing an image recording method of a vehicle black box according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a block diagram of an image recording apparatus of a vehicle black box according to the present invention, which includes a driving signal generating means 101, a power supply 103, a controller 104, a camera 105, an image processor 106, and memory selection. A unit 107, a first SD memory slot 108, a first SD memory card 109, a second SD memory slot 110 and a second SD memory card 111.

Although the video recording apparatus of the vehicle black box according to the present invention is not shown in FIG. 1, in addition to the configuration shown in FIG. 1, a structure provided in a black box mounted in a general vehicle, for example, a speaker, a display unit, a key input unit, and a data It is assumed to include components such as an input / output unit and a communication module.

The driving signal generating means 101 serves to generate a driving signal for determining whether the vehicle is running, and receives the signal from the GPS satellites to generate the vehicle position information and the acceleration / deceleration information of the vehicle as the driving signal. It includes a receiver (101a) or a geomagnetic sensor and an acceleration sensor, and includes a G sensor (Gravity sensor) (101b) for detecting the movement of the object using gravity, and generates a motion detection signal as a driving signal. Here, the driving signal generating means 101 is shown as including both configurations in FIG. 1 for convenience, but when the device is actually implemented, the GPS receiver 101a and the G sensor 101b may implement the driving signal even if only one of them is implemented. It is possible to generate the driving signal by implementing both as needed.

The power supply unit 103 serves to supply driving power required for a configuration that requires power among the components provided in the black box, and is configured in a form capable of charging and discharging to receive a DC (12V) voltage of the vehicle. It includes a battery that supplies.

The controller 104 determines a driving mode and a parking mode based on the driving signal generated by the driving signal generating means 101 and generates an image processing control signal and a memory selection signal according to the determined driving mode or parking mode. Do it. The control unit 104 is preferably implemented as a control device such as a microprocessor, a microcomputer, a controller, a central processing unit. More preferably, the controller 104 determines the driving mode and the parking mode based on the acceleration / deceleration information or the motion detection signal included in the input driving signal.

The camera 105 is a camera mounted on a normal black box, and serves to capture an image of the outside of the vehicle. The camera 105 is a front camera that captures an image of the front of the vehicle, a rear camera that captures an image of the rear of the vehicle, and a side of the vehicle. It is preferable to include a side camera for taking an image.

The image processor 106 divides and processes the image acquired by the camera 105 into image quality according to the image processing control signal generated by the controller 104. The image generated by the controller 104 is processed. According to the processing control signal, the image obtained by the camera 105 is extracted at a high quality level (HD level) in units of 30 frames, or at low quality in units of 5 frames. In this case, the image processing unit 106 preferably includes an image converter which makes an image acquired by the camera into a 30-frame unit image or a 5-frame unit image.

The memory selector 107 selects a storage path of an image output from the image processor 106 according to a memory selection signal generated by the controller 104. The memory selector 107 is implemented by a general switch, a multiplexer, or the like. desirable.

The first SD memory slot 108 serves to store a high quality image of a 30-frame unit selected by the memory selector 107 in the first SD memory card 109, and the second SD memory slot 110. ) Stores the low quality image of the 5 frame units selected by the memory selector 107 in the second SD memory card 111.

Here, the first and second SD memory slots 108 and 110 are data interface means of the first and second SD memory cards 109 and 111, respectively, and include the first and second SD memory cards 109 and 111, respectively. It includes a structure that can be mounted or detached.

In the video recording apparatus of the vehicle black box according to the present invention configured as described above, when driving power is supplied by the power supply unit 103, the control unit 104 draws a control program for recording an image from the internal memory, and controls the control. The video recording operation is controlled according to the program.

In order to control the image recording operation, it is first necessary to determine whether the current vehicle mode is the driving mode or the parking mode, and this mode determination is based on the driving signal output from the driving signal generating means 101.

For example, the GPS receiver 101a of the driving signal generating means 101 receives a signal from the GPS satellites, extracts the position information of the vehicle and the acceleration / deceleration information of the vehicle, and transmits it to the controller 104 as a driving signal. In addition, the G sensor 101b includes a geomagnetic sensor and an acceleration sensor, detects the movement of the object using gravity, and transmits a motion detection signal to the controller 104 as a driving signal.

The controller 104 analyzes the acceleration / deceleration information included in the driving signal generated by the GPS receiver 101a and / or the motion detection signal included in the driving signal generated by the G sensor 101b to determine whether the vehicle is in the driving mode. It is determined whether the parking mode. For example, when acceleration / deceleration information is present or a motion detection signal is present, the vehicle is determined to be a driving mode. In contrast, when acceleration / deceleration information does not exist or when there is no motion detection signal, the passage of time is checked through an internal counter. It is checked whether the acceleration / deceleration information does not exist or there is no motion detection signal continuously for a predetermined time. As a result of this check, if the acceleration / deceleration information does not exist continuously or there is no motion detection signal, the parking mode is determined.

In addition, the driving mode or the parking mode is determined by combining the acceleration / deceleration information and the motion detection signal. For example, when both the acceleration / deceleration information and the motion detection signal exist, it is determined as the driving mode. When the acceleration / deceleration information and the motion detection signal do not exist continuously for a predetermined time, the parking mode is determined.

The control unit 104 generates an image processing control signal and transmits the image processing control signal to the image processing unit 106 according to the result of determining the mode of the vehicle, and generates and transmits a memory selection signal to the memory selection unit 107. The image processing control signal may be an image processing control signal for extracting a high quality image of 30 frames in the driving mode or an image processing control signal for extracting a low quality image of 5 frames in the parking mode.

The image processor 106 processes the surveillance image acquired from the camera 105 according to an image processing control signal applied by using an internal image converter. In this case, when the image processing control signal is a control signal for a driving mode, The captured surveillance image is extracted as a high quality image of 30 frames and transferred to the memory selector 107. In contrast, when the image processing control signal is a control signal for the parking mode, the acquired surveillance image is transmitted in 5 frame units. The low quality image is extracted and transferred to the memory selector 107. The image processing control signal for the driving mode and the image processing control signal for the parking mode may be divided into a high signal 5V and a low signal 0V or a digital signal 11 and 00.

The memory selector 107 selects a storage path of an image output from the image processor 106 according to a memory selection signal transmitted from the controller 104. For example, when the memory selection signal is the memory selection signal for the driving mode, the memory selecting unit 107 selects the first SD memory slot 109 as the image storage path, and when the memory selection signal is the memory selection signal for the parking mode. The memory selector 107 selects the second SD memory slot 110 as an image storage path. The memory selection signal may be classified into a high signal (5V) when the memory selection signal for the driving mode, and a low signal (0V) when the parking mode.

In the driving mode, an image storing path is formed in the first SD memory slot 108, and the image selecting unit 107 transmits a 30-frame unit image output from the image processing unit 106 to the first SD memory slot 108. The first SD memory slot 108 stores the applied image in the first SD memory card 109. In this case, the first SD memory card 109 may be embodied as a 32GB memory provided in a typical vehicle black box.

On the contrary, in the parking mode, an image storage path is formed in the second SD memory slot 110, and the image of the 5-frame unit output from the image processor 106 by the memory selector 107 is stored in the second SD memory slot 110. The second SD memory slot 110 stores the applied image in the second SD memory card 111. In this case, the second SD memory card 111 may be embodied as a 32GB memory provided in a normal vehicle black box.

In the parking mode, if the video is saved in the SD memory card in 5 frame units, the amount of data stored in the video can be significantly reduced, allowing long time recording even when using an SD memory card with a capacity of 32GB. Therefore, it can be fully utilized as a monitoring device when parking.

2 is a flowchart showing an image recording method of a vehicle black box according to the present invention, where S represents a step, and the image recording method is software-controlled by the controller of the image recording apparatus of the vehicle black box of FIG. 1. It shows a control process consisting of.

As shown therein, (a) determining a vehicle driving mode based on a vehicle driving signal generated by a GPS receiver or a G sensor (S101, S103, S113); (b) In the driving mode, when the driving mode is selected, the first SD memory card is selected as a storage device for storing the surveillance video, and the surveillance video obtained from the camera is extracted at a high definition level (30 frame units) to the selected first SD memory card. Storing steps S105 to S111; (c) In the parking mode, the second SD memory card is selected as a storage device to store the surveillance video, and the surveillance video obtained from the camera is extracted in low quality (5 frames). 2 is stored in the SD memory card (S115 to S121).

In the video recording method of the vehicle black box, in which the driving power is supplied by the power supply unit 103, the control unit 104 must first determine whether the current vehicle mode is the driving mode or the parking mode in step S101. The determination of the mode is based on the driving signal output from the driving signal generating means 101.

For example, the GPS receiver 101a of the driving signal generating means 101 receives a signal from the GPS satellites, extracts the position information of the vehicle and the acceleration / deceleration information of the vehicle, and transmits it to the controller 104 as a driving signal. In addition, the G sensor 101b includes a geomagnetic sensor and an acceleration sensor, detects the movement of the object using gravity, and transmits a motion detection signal to the controller 104 as a driving signal.

In step S103 and step S113, the controller 104 analyzes the acceleration / deceleration information included in the driving signal generated by the GPS receiver 101a and / or the motion detection signal included in the driving signal generated by the G sensor 101b. It is determined whether the vehicle is in driving mode or parking mode. For example, when acceleration / deceleration information is present or a motion detection signal is present, the vehicle is determined to be a driving mode. In contrast, when acceleration / deceleration information does not exist or when there is no motion detection signal, the passage of time is checked through an internal counter. It is checked whether the acceleration / deceleration information does not exist or there is no motion detection signal continuously for a predetermined time. As a result of this check, if the acceleration / deceleration information does not exist continuously or there is no motion detection signal, the parking mode is determined.

In addition, the driving mode or the parking mode is determined by combining the acceleration / deceleration information and the motion detection signal. For example, when both the acceleration / deceleration information and the motion detection signal exist, it is determined as the driving mode. When the acceleration / deceleration information and the motion detection signal do not exist continuously for a predetermined time, the parking mode is determined.

If it is determined that the vehicle mode is the driving mode in step S103, the control unit moves to step S105 to generate a control signal for selecting the first SD memory card. Then, in step S107, a surveillance image is acquired from the camera. The obtained surveillance image is extracted in units of 30 frames of high definition (HD class), and the image is recorded on the first SD memory card in step S111. The video recording method is the same as the video recording method in a general vehicle black box.

The present invention records the surveillance video to the first SD memory card in the same manner as in the conventional driving mode of the vehicle, and if it is determined that the vehicle mode is the parking mode, the second SD memory card additionally includes an image storage path. Set up and save the surveillance video in the second SD memory card by the video extraction method different from the general video extraction method, so that the black box can park the video for a long time in the same memory capacity when parking. It can be used as a city monitoring device.

For example, if it is determined that the vehicle mode is the parking mode in step S113, a control signal for moving to step S115 to select the second SD memory card is generated, and in step S117, a surveillance image is acquired from the camera, and in step S119. In step S121, the obtained surveillance image is extracted as a low quality image in units of 5 frames, and the image is recorded on the second SD memory card.

In the parking mode, if the video is saved in the SD memory card in 5 frame units, the amount of data stored in the video can be significantly reduced, allowing long time recording even when using an SD memory card with a capacity of 32GB. Therefore, it can be fully utilized as a monitoring device when parking.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

101 ... Running signal generating means
104 ... The control unit
106 ... The image processor
107 ... Memory selector
108 ... 1st SD memory slot
109 ... 1st SD memory card
110 ... 2nd SD memory slot
111... 2nd SD memory card

Claims (6)

Driving signal generating means for generating a driving signal for determining whether the vehicle is driven;
A controller for determining a driving mode and a parking mode based on the driving signal generated by the driving signal generating means, and generating an image processing control signal and a memory selection signal according to the determined driving mode or parking mode;
An image processing unit for separating and processing an image acquired by a camera according to an image processing control signal generated by the control unit with an image quality;
A memory selector configured to select a storage path of an image output from the image processor according to a memory selection signal generated by the controller;
And a first and second SD memory slots for selectively storing an image output through the storage path of the image selected by the memory selection unit in one of the first and second SD memory cards. Video recording device.
The method of claim 1, wherein the driving signal generating means,
It includes a GPS receiver or geomagnetic sensor and an acceleration sensor that receive signals from GPS satellites and generate vehicle position information and acceleration / deceleration information as driving signals, and detects the movement of an object using gravity, and drives the motion detection signal. An image recording apparatus for a black box for a vehicle, comprising a G sensor generated as a signal.
The apparatus of claim 1,
And a driving mode and a parking mode on the basis of the acceleration / deceleration information or the motion detection signal included in the input driving signal.
The method of claim 1, wherein the image processing unit,
According to the image processing control signal generated by the control unit in the driving mode, the image obtained by the camera is extracted in units of 30 frames, in the parking mode is characterized in that the image obtained by the camera is extracted in units of 5 frames Video recording device of a car black box.
The method of claim 1, wherein the memory selector,
In the driving mode, the storage path of the image output from the image processor is selected as the first SD memory card in the driving mode, and the storage path of the image output from the image processor is selected in the parking mode. 2. Selected as an SD memory card, the image recording apparatus of the black box for a vehicle according to the selected SD memory card, wherein an image output from the image processor is transferred to a first SD memory slot or a second SD memory slot.
(a) determining a vehicle driving mode based on a vehicle driving signal generated by a GPS receiver or a G sensor;
(b) In the driving mode, when the driving mode is selected, the first SD memory card is selected as a storage device to store the surveillance video, and the surveillance video obtained from the camera is extracted in high definition (30 frame units) to the selected first SD memory card. Storing;
(c) In the parking mode, the second SD memory card is selected as a storage device to store the surveillance video, and the surveillance video obtained from the camera is extracted in low quality (5 frames). The video recording method of the vehicle black box comprising the step of storing in the SD memory card.

Images