KR100486483B1 - Digital video recorder using universal serial bus memory for vehicle mounting and video recording method using the recorder - Google Patents

Abstract

The present invention relates to a digital image storage device, and more particularly, a USB storage device is used as a storage means, and is mounted on a mobile vehicle provided with a pointer addition unit for displaying a motion detection display to extract and reproduce the stored image data. A digital image storage device using a USB memory and an image storage method using the device. A digital image storage apparatus using a USB memory mounted in a mobile vehicle according to the present invention comprises: an imaging unit for photographing a predetermined area and generating analog image data; An A / D converter converting the analog image data into digital image data; A packing unit to compress the converted digital image data; A motion detection sensor unit detecting a motion in the preset area; A first pointer adding unit which receives a motion detection signal from the motion detection sensor unit and inserts a motion detection pointer into a corresponding portion of the compressed digital image data; A controller which controls the imaging unit, the A / D conversion unit, the packing unit, and the first pointer adding unit; A data matching processing unit converting the data received from the packing unit into a data format processable by the control unit; And a USB storage unit storing compressed digital image data to which the motion detection pointer received from the controller is added.

Description

DIGITAL VIDEO RECORDER USING UNIVERSAL SERIAL BUS MEMORY FOR VEHICLE MOUNTING AND VIDEO RECORDING METHOD USING THE RECORDER}

The present invention relates to an image storage device, and more particularly, to use a USB storage device for miniaturization and safe storage of image data, and to add a pointer to the image data so that the image data can be extracted and reproduced. The present invention relates to a digital image storage device using a USB memory mounted in a mobile vehicle including a pointer addition unit and an image storage method using the device.

8 is a view showing the configuration of a conventional digital image storage device. As shown in FIG. 8, the conventional digital image storage apparatus converts and compresses analog image data generated by the image capturing unit 80 and the analog image data generated by the image capturing unit 80 into digital image data. The image processing unit 81, the hard disk storage device 84 for storing the compressed digital image data, and the control unit 83 for controlling the imaging unit 80, the image processing unit 81, and the motion detection sensor unit 82 It is composed.

However, when the image storage device is used in the vehicle, a separate storage space must be formed in the vehicle. The image storage device using the conventional hard disk storage device has a size of the image storage device installed by the size of the hard disk itself. Since miniaturization is limited, there is a problem that a predetermined space must be secured.

In addition, since most of the image storage device installed in the vehicle is used during the movement, the vibration of the vehicle should be taken into account. Since the image data storage in the conventional image storage device is performed while the hard disk rotates, mechanical driving is required. In case of severe vibration, there is a problem in that image data cannot be stored properly.

To solve this problem, an external hard disk storage device has been used.However, in order to play back image data, it is necessary to remove the external hard disk storage device from the video storage device and move it to the playback means. If it is dropped, the hard disk is damaged and the video data is lost.

External hard disks also have limited size miniaturization, which has not solved the problem of moving.

In addition, since the image storage device using the hard disk storage device has to supply a separate independent power to the hard disk storage device itself, there is a problem that the power supply is complicated and the production cost increases.

The conventional video storage device adopts a method of recording and storing all images sequentially according to time, or a method of recording only when a motion is detected by a sensor. There was an inconvenience that only the part where motion was detected can be seen.

The present invention has been made to solve the above problems, an object of the present invention is to stably store the image data, to move easily and to the impact resistant USB storage device and to extract a part of the entire recorded image data can be reproduced. The present invention provides a digital image storage device using a USB memory mounted in a mobile vehicle including a pointer adder and an image storage method using the device.

The object of the present invention described above is an imaging unit for generating analog image data by photographing a predetermined area; An A / D converter converting the analog image data into digital image data; A packing unit to compress the converted digital image data; A motion detection sensor unit detecting a motion in the preset area; A first pointer adding unit which receives a motion detection signal from the motion detection sensor unit and inserts a motion detection pointer into a corresponding portion of the compressed digital image data; A controller which controls the imaging unit, the A / D conversion unit, the packing unit, and the first pointer adding unit; A data matching processing unit converting the data received from the packing unit into a data format processable by the control unit; And a USB storage unit for storing the compressed digital image data to which the motion detection pointer received from the controller is added.

The object of the present invention described above is an imaging unit for generating analog image data by photographing a predetermined area; An A / D converter converting the analog image data into digital image data; A packing unit to compress the converted digital image data; A motion readout detection unit that reads the digital image data and detects motion within a predetermined area; A second pointer adder which receives a motion detection signal from the motion readout detection unit and inserts a motion detection pointer into a corresponding portion of the compressed digital image data; A controller for controlling the imaging unit, the A / D conversion unit, the packing unit, the motion readout detection unit, and the second pointer addition unit; A data matching processing unit converting the data received from the packing unit into a data format processable by the control unit; And a USB storage unit for storing the compressed digital image data to which the motion detection pointer received from the control unit is added, can also be achieved by the image storage device using the USB memory mounted on the mobile vehicle.

In order to achieve the above object, it is preferable that a network port is further provided for transmitting the compressed digital image data to which the motion detection pointer received from the controller is added through a wireless network.

Further, in order to achieve the above object, a buffer memory for temporarily storing the digital image data compressed by the packing unit is further included, wherein the corresponding portion into which the motion detection pointer is inserted is the digital image corresponding to the detected motion Preferably, the data is part of digital image data before and after a predetermined time from the data.

In addition, in order to achieve the above object, the control unit preferably adds pop-up command data to a portion of the motion detection pointer of the compressed digital image data to which the motion detection pointer is added.

An object of the present invention as described above comprises the steps of capturing a predetermined area of the image pickup unit to generate analog image data; Converting the analog image data into digital image data; Compressing the digital image data; Determining whether the motion detection sensor detects motion; Transmitting, by the motion detection sensor unit, a motion detection signal to a first pointer adding unit; Inserting a motion detection pointer into the digital image data by the first pointer addition unit receiving the motion detection signal; And storing the digital image data to which the motion detection pointer is added, in the USB storage unit. The image storage method using the image storage apparatus using the USB memory may be achieved.

Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the image storage device using a USB memory mounted in a mobile vehicle according to an embodiment of the present invention.

1 is a view showing a state of use applied to the PC (5) by moving the USB storage unit 50 of the image storage device using a USB memory mounted on a mobile vehicle according to an embodiment of the present invention. As shown in FIG. 1, the image storage apparatus using the USB memory according to the present invention uses the USB flash memory 51 as a storage means in the image storage apparatus main body in which a camera, which is an imaging means, is installed. The USB flash memory 51 storing the digital image data can be separated from the main body of the image storage device and connected to the PC 5 through the USB port of the PC 5.

2 is a view showing a state of use of the image storage device using a USB memory mounted on a mobile vehicle according to an embodiment of the present invention applied to a PC using a wireless network (7). As shown in FIG. 2, the image storage apparatus using the USB memory according to the present invention transmits image data captured by mounting the wireless LAN card 6 through the wireless network 7, and reproduces the transmitted image data. It can be applied to the PC (5) equipped with a wireless LAN card (6).

3 is a diagram illustrating a schematic configuration of an image storage device using a USB memory mounted in a mobile vehicle according to a preferred embodiment of the present invention. As shown in FIG. 3, the image storage apparatus using the USB memory according to the present invention includes an imaging unit 10 for photographing a predetermined area to generate image data, an image processing unit 20 for applying additional processing to the image data, Motion detection sensor unit 40, motion readout detection unit 30, control unit 60, network port 70, buffer memory 55 temporarily storing digital image data, USB port for detecting motion of the predetermined area 52 and the USB storage unit 50.

The imaging unit 10 may be an analog camera 11 or a CCTV camera capable of shooting about 30 frames per second. The image processing unit 20 converts and compresses the image data received by the imaging unit 10 and will be described in detail later.

The motion detection sensor unit 40 is for detecting the movement of the set area, that is, motion. Preferably, a motion sensor is used and a heat sensor may be used. The motion detection sensor unit 40 generates a motion detection signal at the time of motion detection, and the motion detection signal is transmitted to the image processing unit 20 through the control unit 60 to be used for processing image data.

The motion readout detection unit 30 operates when the motion sensor is in an inoperative state, and detects whether motion has occurred in a specific area by receiving and reading image data from the image capturing unit 10. When the motion is detected, the motion detection signal is transmitted to the image processor 20 and the image data is processed accordingly.

The USB port 52 is a connection terminal for connecting the USB storage unit 50 to the control unit 60. The USB storage unit 50 is generated by the imaging unit 10 and performs a predetermined process in the image processing unit 20. As the storage of the rough image data, a USB flash memory 51 and a USB hard disk are preferably used. At this time, the USB flash memory 51 has a capacity of 256MB, 512MB, and the like, and the portable function is very excellent.The USB hard disk is larger than the USB flash memory 51, but can store a large amount of data of several tens of GB and is detachable. This is free.

The network port 70 is for transmitting the processed image data to a remote PC 5 or the like through a wireless network 7 without passing through a storage device. The network port 70 is electrically connected to the control unit 60. The wireless LAN card 6 ) Corresponds to the connection terminal to which it is connected.

The controller 60 controls the imaging unit 10, the image processing unit 20, and the motion readout detection unit 30. The CPU is used, and the image processing unit 20 controls the image data generated from the imaging unit 10. Control to process according to the motion detection signal from the motion detection sensor unit 40 or the motion readout detection unit 30, and store the processed image data in the USB storage unit 50 and / or via the wireless network 7 Control to transmit. The driving of the controller 60 is performed by a Linux operating system stored in a ROM (not shown).

4 is a diagram illustrating a configuration of an image processing unit of an image storage device using a USB memory mounted in a mobile vehicle according to an embodiment of the present invention. As shown in FIG. 4, the image processing unit 20 of the image storage device 1 according to the present invention includes an A / D converter 21, a packing unit 22, and a first unit connected to the imaging unit 10. The pointer adding section 23, the second pointer adding section 24, and the data matching processing section 25 are formed.

The A / D converter 21 is a part for converting the analog image data generated by the imaging unit 10 into digital image data which is easy to store and reproduce. The packing unit 22 converts the digital image data generated by the conversion. This is the part to compress for efficient storage.

The first pointer adding unit 23 is for displaying a motion detection part on a corresponding part of the digital image data when the motion detection signal is received from the motion detection sensor unit 40. The detection of the compressed digital image data is performed. The motion detection start pointer is inserted in the part where the motion started and the motion detection end pointer is inserted in the part which has elapsed for a predetermined time from the start part. Or a motion detection start pointer and a motion detection end pointer from a digital image data portion representing the image of the previous part of the predetermined time and a digital image data portion representing the image after the predetermined time from the digital image data corresponding to the detected motion. You can also insert

The second pointer adding unit 24 communicates with the control unit 60 to operate when the motion detection sensor unit 40 does not operate. The second pointer adding unit 24 reads compressed digital image data and checks whether there is a change over a predetermined range of the digital image data. It is determined whether there is motion in the predetermined region. When a motion is detected, a motion detection start pointer is inserted in a portion where the detected motion of the compressed digital image data starts and a motion detection end pointer in a portion that has elapsed for a predetermined time from the start portion. Alternatively, as in the case of the first pointer adding unit 24, the digital image data indicating the image of the previous part of the predetermined time and the digital image indicating the image after the predetermined time from the digital image data corresponding to the detected motion. The motion detection start pointer and the motion detection end pointer may be inserted in the portion of the image data.

The data matching processing unit 25 is connected between the packing unit 22 and the control unit 60, respectively, and converts the data processed by the packing unit 22 into a format of the data processed by the control unit 60 or the control unit ( The data processed by 60 is converted into a data format processed by the packing unit 22. The data matching processor 25 is preferably a programmable logic device (PLD).

The controller 60 determines whether the motion sensor switch (not shown) is in an ON / OFF state, and when the controller is in the ON state, operates the first pointer adder 23 and detects the motion received from the motion sensor 40. The signal is transmitted to the first pointer adding unit 23. Thereafter, the controller 60 stores the compressed digital image data to which the motion detection pointer is added by the first pointer adder 23 in the USB storage 50. When the motion sensor switch is in the OFF state, the second pointer adder 24 and the motion readout detector 30 are operated, and the motion detection signal received from the motion readout detector 30 is transferred to the second pointer adder 24. send. Accordingly, the second pointer adding unit 24 stores the compressed digital image data to which the motion detection pointer is added, in the USB storage unit 50. In addition, the controller 60 adds pop-up command data to a portion of the motion detection pointer of the compressed digital image data to which the motion detection pointer is added.

Hereinafter, an image storage method and an operation method using a digital image storage device using a USB memory mounted on a mobile vehicle according to an embodiment of the present invention having the above configuration will be described in detail.

5 is a flowchart illustrating a first embodiment of an image storing method using an image storing apparatus using a USB memory mounted in a mobile vehicle according to a preferred embodiment of the present invention. As shown in FIG. 5, according to the first embodiment of the image storage method according to the preferred embodiment of the present invention, the imaging unit 10 photographs a predetermined area to generate analog image data (S10), and A / D. The conversion unit 21 converts the received analog image data into digital image data (S11), and compresses the converted digital image data for effective storage (S12). The control unit 60 determines whether the motion detection sensor unit 40 detects motion during the photographing (S13), and when the motion detection sensor unit 40 detects motion, the control unit 60 detects motion. The motion detection signal received from the sensor unit 40 is transmitted to the first pointer adding unit 23 (S14), and the first pointer adding unit 23 receiving the motion detection signal adds a motion detection pointer to the digital image data. In operation S15, the digital image data to which the motion detection pointer is added is stored in the USB storage unit 50 (S16). If the motion detection sensor unit 40 does not detect motion, the compressed digital image data is stored as it is (S17).

6 is a flowchart illustrating a second embodiment of an image storing method using an image storing apparatus using a USB memory mounted in a mobile vehicle according to a preferred embodiment of the present invention. As shown in FIG. 6, in the second embodiment of the image storage method according to the preferred embodiment of the present invention, the imaging unit 10 captures a predetermined area to generate analog image data (S20), and A / D. The conversion unit 21 converts the received analog image data into digital image data (S21), and compresses the converted digital image data for effective storage (S22). The controller 60 determines whether the motion readout detection unit 30 has detected motion (S23), and when detecting the motion, the controller 60 determines that the motion readout detection unit 30 adds a motion detection signal to the second pointer. The second pointer adding unit 24, which is to be transmitted to the unit 24 (S24) and receives the motion detection signal, inserts a motion detection pointer into the digital image data (S25), and adds the motion detection pointer to the digital image data. Is stored in the USB storage unit 50 (S26). If the motion detection sensor unit 40 does not detect motion, the compressed digital image data is stored as it is (S27).

7 is a diagram illustrating a method of reproducing image data stored by an image storage device using a USB memory mounted in a mobile vehicle according to an exemplary embodiment of the present invention. As shown in FIG. 7, the method of reproducing image data stored in the image storage device according to the present invention connects a USB storage device storing digital image data of a captured image to a USB port 52 of a PC (5). (S100). The user selects a full play or a partial play through a program capable of playing video data (S). If full playback is selected, the video data stored in the USB storage device is sequentially played back according to the time (S130). If a part of the playback is selected, only the part where the motion detection pointer is inserted is played (S140). Particularly in the case of some reproduction, the portion of the image data from the start to the end of the detected motion may be reproduced, and the portion of the image data from the start of the detected motion before the predetermined time and after the predetermined time from the end of the motion is detected. When inserted into the video, the video includes the video corresponding to the time before and after the detected motion.

In the image storage apparatus according to the present invention, the first pointer adder 23 and the second pointer adder 24 insert a motion detection start pointer and a motion detection end pointer into the digital image data, and the motion detection end pointer is inserted. If a new motion is detected before, the motion detection start pointer is inserted in the corresponding part and the previous motion detection end pointer is not inserted. When the digital image data stored in this way is partially reproduced, all of the images passing through the plurality of motion detection start pointers are reproduced until the end of the motion detection end pointer.

When the image data stored by the image storage device according to the present invention is reproduced with a plurality of windows, the window is automatically popped up when the image of the portion to which the pop-up command data is added is played. It will be played on the screen.

In the preferred embodiment of the present invention, the image data received from the image pickup unit is stored in a USB storage device, and at this time, a motion detection pointer is inserted into a specific image data portion. However, the present invention is not limited thereto. By temporarily storing the image data input using the buffer memory, and receiving the image data corresponding to before and after the motion detection from the buffer memory, only the portion of the image data where the motion detection pointer is displayed is stored on the USB storage device. It is also possible to adopt a configuration for storing.

In the preferred embodiment of the present invention, the image pickup unit is adopted as a configuration, and the present invention has been described mainly for storing image data. However, the present invention is not limited thereto. It is also possible to implement storage.

Although the preferred embodiment of the present invention adopts a configuration of displaying a motion detection mark on image data using a sensor for detecting a motion, the present invention is not limited thereto, and the present invention is not limited thereto. Adopting a configuration for adding the door opening and closing indication to the data will all be included in the scope of the present invention.

In a preferred embodiment of the present invention disclosed an image storage device having a structure in which the analog camera corresponding to the imaging unit is connected by a separate wire, the present invention is not limited thereto, and the camera is mounted to be fixed to the image storage device integrally. It is also possible to have a structure.

According to a digital image storing apparatus using a USB memory mounted on a mobile vehicle and an image storing method using the apparatus according to a preferred embodiment of the present invention having the above-described configuration, a storage apparatus comprising a small USB flash memory or a USB hard disk Since the video storage device is configured by installing the image storage device, the size of the video storage device is reduced in size, so that there is an effect that can be used even in a narrow installation space.

Since the USB storage device is supplied with power from the USB port itself, there is no need to configure a separate power supply means, thereby simplifying the configuration of the power supply unit of the image storage device.

Since the USB storage device has a hot plug-in hot plug-out function that can be detached and detached during operation, the inconvenience of having to reapply power after installing the storage device with the power off is solved.

In addition, the image storage device installed in the vehicle is always exposed to vibration, and the image storage device using the UBS storage device according to the present invention is not vibrated because it is not stored by a mechanical configuration such as a motor, a read laser and a hard disk. It is strong and has a remarkable effect of ensuring stable recording or storage.

Since the image storage device according to the present invention can easily backup and reproduce the captured image even in a remote place through a wireless network, there is an excellent effect of recognizing and coping with a specific event in real time.

Even in a place where the sensor is difficult to install or when a failure occurs in the operation of the sensor, the motion reading detection unit detects motion to generate image data enabling excerpt reproduction.

The image storage device according to the present invention includes a pointer adder that displays a portion of the image data to be extracted, so that the user can search the entire image or extract the image of only the portion where the motion is detected when the user plays. It works. In particular, when it is necessary to recognize the situation before and after the occurrence of such an accident, such as a car accident, the image data indicating the situation before and after the event plays a big role as evidence.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

1 is a view showing a state of use applied to a PC by moving the USB storage unit of the image storage device using a USB memory mounted in a mobile vehicle according to an embodiment of the present invention,

FIG. 2 is a view showing a usage state in which an image storage device using a USB memory mounted in a mobile vehicle according to an exemplary embodiment of the present invention is applied to a PC using a wireless network.

3 is a view showing a schematic configuration of an image storage device using a USB memory mounted in a mobile vehicle according to an embodiment of the present invention,

4 is a diagram illustrating a configuration of an image processing unit of an image storage device using a USB memory mounted in a mobile vehicle according to an embodiment of the present invention.

5 is a flowchart illustrating a first embodiment of an image storing method using an image storing apparatus using a USB memory mounted in a mobile vehicle according to a preferred embodiment of the present invention;

6 is a flowchart illustrating a second embodiment of an image storing method using an image storing apparatus using a USB memory mounted on a mobile vehicle according to a preferred embodiment of the present invention;

7 is a view showing a method of reproducing image data stored by an image storage device using a USB memory mounted in a mobile vehicle according to an embodiment of the present invention,

8 is a view showing the configuration of a conventional digital image storage device.

Explanation of the Main References

1: Video storage device 5: PC

6: wireless LAN card 10: imaging unit

11: analog camera 20: image processing unit

21: A / D conversion part 22: Packing part

23: first pointer addition portion 24: second pointer addition portion

25: data matching processing unit 30: motion readout detection unit

40: motion detection sensor unit 50: USB storage unit

60: control unit

Claims (7)

An imaging unit 10 for photographing a predetermined area and generating analog image data; An A / D converter 21 for converting the analog image data into digital image data; A packing unit 22 for compressing the converted digital image data; A motion detection sensor unit 40 for detecting a motion in the preset area; A first pointer adder (23) for receiving a detection signal from the motion detection sensor unit (40) and inserting a motion detection pointer into a corresponding portion of the compressed digital image data; A controller 60 for controlling the imaging unit 10, the A / D conversion unit 21, the packing unit 22, and the first pointer adding unit 23; A data matching processing unit 25 for converting data received from the packing unit 22 into a data format processable by the control unit 60; And And a USB storage unit (50) configured to store compressed digital image data to which the motion detection pointer received from the controller (60) is added. An imaging unit 10 for photographing a predetermined area and generating analog image data; An A / D converter 21 for converting the analog image data into digital image data; A packing unit 22 for compressing the converted digital image data; A motion readout detector (30) which reads the digital image data and detects motion within a predetermined area; A second pointer adder (24) for receiving a detection signal from the motion readout detector (30) and inserting a motion detection pointer into a corresponding portion of the compressed digital image data; A control unit 60 for controlling the imaging unit 10, the A / D conversion unit 21, the packing unit 22, the motion readout detection unit 30, and the second pointer adder unit 24; A data matching processing unit 25 for converting data received from the packing unit 22 into a data format processable by the control unit 60; And And a USB storage unit (50) configured to store compressed digital image data to which the motion detection pointer received from the controller (60) is added. The method according to claim 1 or 2, And the control unit (60) adds pop-up command data to a portion of the motion detection pointer of the compressed digital image data to which the motion detection pointer is added. The method according to claim 1 or 2, A buffer memory 55 for temporarily storing the digital image data compressed by the packing unit is further included, The corresponding portion into which the motion detection pointer is inserted is a portion of digital image data before and after a predetermined time from the digital image data corresponding to the detected motion. Image storage device used. The method according to claim 1 or 2, The USB storage unit 50 is an image storage device using a USB memory mounted on a mobile vehicle, characterized in that consisting of a USB flash memory 51 or a USB hard disk. The method according to claim 1 or 2, And a network port 70 for transmitting the compressed digital image data to which the motion detection pointer received from the controller 60 is transmitted through the wireless network 7. Image storage device used. The imaging unit 10 photographing a predetermined area to generate analog image data (S10); Converting the analog image data into digital image data (S11); Compressing the digital image data (S12); Determining whether the motion detection sensor unit 40 detects motion (S13); When the motion is detected, the motion detection sensor unit 40 transmitting a motion detection signal to the first pointer adding unit 23 (S14); Inserting, by the first pointer adder 23, the motion detection signal into the digital image data (S15); And Storing digital image data to which the motion detection pointer is added in a USB storage unit (S16); And And storing (S17) the compressed digital image data in the USB storage unit (50) when motion is not detected.