KR20130052854A - Avn system for acquring video data using the black box - Google Patents

Abstract

PURPOSE: A black box coupling AVN system is provided to display video recorded by a black box on the LCD screen of an AVN system on a real time basis and to store video or audio data to an internal or external memory. CONSTITUTION: A black box coupling AVN system(180) comprises a black box(200) and an AVN system(300). The black box automatically photographs the driving state of a vehicle and records data with respect to the speed, driving distance, and brake operation state of a vehicle. The AVN system controls the black box and stores video information recorded by the black box for outputting. The black box and AVN system intercommunicate through short-range wireless communications. [Reference numerals] (180) Black box coupling AVN system; (200) Block box; (300) AVN system

Description

AVN system for acquring Video data using the black box}

The present invention relates to an AVN system, and more particularly, to a black box linked AVN system for receiving video and / or sound data from a vehicle black box.

The vehicle black box is a driving image recording device that automatically records a driving state of a vehicle and records data such as a speed and a mileage brake operating state.

1 is a block diagram of a conventional vehicle black box.

The conventional vehicle black box 100 includes a camera unit 110, a memory unit 150, a control unit 130, a power supply unit 120, an external connection connector 140, and a GPS receiver 160. The black box 100 automatically records the driving situation of the vehicle. The memory unit 150 for storing image data can adjust the storage time according to the recording quality, and when the storage space is full, the old image is automatically deleted sequentially.

In the conventional black box 100, when the capacity of the memory unit 150 is exceeded or the memory unit 150 is bad, recording may not be performed or deleted. In addition, in order to check the recorded video, the driver has to connect to an external PC or laptop with a display device to check the recorded video, and there is inconvenience in that the vehicle cannot immediately check the recorded video of the black box.

An object of the present invention is to check the image information recorded in the vehicle black box in real time through the LCD screen of the AVN system using a short-range wireless communication such as Bluetooth, and to convert the image and / to the internal memory or external memory of the AVN system Another object of the present invention is to provide an AVN system interlocking with a black box that can facilitate the driver's convenience of storing sound information.

Black box linked AVN system according to the present invention, the camera unit for photographing the front, rear or side of the vehicle; An image processor which receives an image captured by the camera as an input and processes the image at a predetermined resolution; A transmitter / receiver for transmitting and receiving data with the AVN system; It includes a power supply unit including an internal battery and controls an external power source, and a control unit for controlling the camera unit, the image processing unit, the power supply unit, and the transmission / reception unit, and automatically photographs driving conditions of the vehicle, and operates speed, mileage, and brakes. A transmitting / receiving unit controlling a black box for recording data of a state, storing and outputting image information recorded by the black box, and transmitting and receiving data with the black box; A storage unit which stores the image information from the black box; A display unit for outputting the image information from the black box; And an AVN system including a control unit for controlling the black box, the transmission / reception unit, the storage unit, and the display unit.

According to the present invention, the driver can immediately check in real time through the LCD screen of the AVN system without having to connect to an external PC, laptop, etc. to check the recorded image of the vehicle black box. In addition, the driver can check and edit the recorded video in real time through the AVN system and save the recorded video to an external USB memory.

In addition, memory-related devices and buttons are deleted inside the black box, simplifying the product manufacturing process and reducing the number of parts.

1 is a block diagram of a conventional vehicle black box.
2 is a block diagram of a black box linked AVN system according to an embodiment of the present invention.
3 is a block diagram of a black box according to an embodiment of the present invention.
4 is a configuration diagram of an AVN system according to an embodiment of the present invention.
5 is a configuration diagram of a storage unit according to an embodiment of the present invention.
6 is a flowchart illustrating a method for acquiring an image of a black box linked AVN system according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. To fully disclose the scope of the invention to a person skilled in the art, and the invention is defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms " comprises, " and / or "comprising" refer to the presence or absence of one or more other components, steps, operations, and / Or additions.

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

2 is a block diagram 180 of a black box interlocking AVN system according to an embodiment of the present invention.

Referring to FIG. 2, the black box interworking AVN system 180 according to an embodiment of the present invention includes a black box 200 and an AVN system 300.

The black box 200 is an apparatus for automatically photographing driving conditions of a vehicle and recording data of speed, driving distance, and brake operating state. The AVN system 300 is a device that controls the black box 200 and stores and outputs image information recorded by the black box 200. The black box 200 and the AVN system 300 communicate with each other using short-range wireless communication.

3 is a block diagram of a black box 200 according to an embodiment of the present invention.

Referring to FIG. 3, the black box 200 according to the embodiment of the present invention includes a camera unit 210, an image processor 220, a transmitter / receiver 230, a controller 240, and a power supply 250. .

Specifically, the camera unit 210 photographs the peripheral area of the vehicle including the front, rear or side of the vehicle. The image processor 220 receives an image captured by the camera unit 210 as an input and processes the image at a preset resolution. The transmitter / receiver 230 transmits and receives data with the AVN system 300. The power supply unit 250 supplies power to each component of the black box, and basically uses an external power source and, when the external power source is cut off, supplies power using an internal battery. The controller 240 controls input / output between the camera unit 210, the image processor 220, the transmitter / receiver 230, and the power supply 250.

4 is a configuration diagram 300 of an AVN system according to an exemplary embodiment of the present invention.

Referring to FIG. 4, an AVN system 300 according to an exemplary embodiment of the present invention includes a transmitter / receiver 310, a storage 320, a display 330, and a controller 340.

The transmitter / receiver 310 transmits and receives data with the black box 200. The storage unit 320 stores image information from the black box 200. The display unit 330 outputs image information from the black box 200. The controller 340 controls input / output between the black box 200, the transmitter / receiver 310, the storage 320, and the display 330.

According to the present invention, a process of obtaining an image around the vehicle in more detail is as follows. When an external image is input from the camera unit 210 of the black box 200, the image processor 220 processes the image at a set resolution (for example, 1920 × 1080). The transmitting / receiving unit 230 of the black box transmits the processed image information to the AVN system 300 in real time using short-range wireless communication. Near field communication includes, but is not limited to, Bluetooth, ZigBee, Infrared (IrDA), Wireless Lan, Ultra-wideband (UWB), and the like. All technical ideas within the equivalent scope are included in the scope of the present invention.

Bluetooth (Blue tooth) is a wireless network between computers and communication devices that replaced the wired cable environment with a wireless communication interface. Bluetooth uses a 2.4 GHz radio frequency, which is more straight forward and more transparent than infrared wireless communication. The advantage of Bluetooth is that it comes in one chip or module, so it is less expensive and consumes less power than other wireless systems. In addition, Bluetooth supports voice transmission, the radio wave reach is 50 ~ 200m relatively long compared to other short-range wireless communication, the transmission speed is 4-11Mbps can transmit a large amount of multimedia information.

ZigBee is a wireless personal area network specification that wirelessly connects peripheral devices operating at 868 MHz, 902-928 MHz, and 2.4 GHz. ZigBee allows data to be sent and received at speeds of up to 250 Kbps between peripherals within a 50m distance within a wireless personal area network. ZigBee's advantage is that it can reliably deliver data without loss in communications, and peripherals operate at low power, allowing longer battery life.

Infrared communication (IrDA) is an optical wireless communication using infrared light with a wavelength of 850 ~ 900nm, modulates the infrared light into information and transmits it to the receiver. The advantage of infrared communication is that it can be used in various media such as remote control, notebook, mobile phone etc. in terms of general purpose, and it is a communication using light in terms of legal regulations, so it is not regulated by radio law and security in terms of encryption and coding in terms of security. outstanding.

Wireless Lan is a local area network where two or more computers are connected wirelessly. WLAN uses electromagnetic wave-based OFDM modulation technology to enable devices to communicate with each other. The advantage of wireless LAN is that it does not need a dedicated line by using radio frequency, and it is 50 ~ 200m relatively long in terms of distance, and its transmission speed is 4 ~ 11Mbps, and it can also exchange a large amount of multimedia information.

UWB-Ultra Wide Band (UWB) is a wireless communication technology utilizing a high frequency band of 2 to 10 GHz. Ultra-wideband communication (UWB) is a technology for exchanging data using microwaves, and has been attracting attention as a technology for implementing a home networking system with a short transmission distance of about 10m but a high transmission speed (100Mbps). The advantage of ultra-wideband communications is that data can be sent and received using frequencies already in use by other systems and power consumption is low.

The power supply unit 250 of the black box basically uses an external power source connected to the vehicle, and uses an internal battery when the external power source is cut off.

5 is a configuration diagram of a storage unit 320 according to an embodiment of the present invention.

Referring to FIG. 5, the storage 320 according to an embodiment of the present invention includes an internal memory 322 and an external memory 324.

In connection with the reception and storage of image information, the AVN system 300 communicates with the black box 200 through short-range wireless communication (eg, Bluetooth). The AVN system 300 may receive image information received from the black box 200 and store the image information in the internal memory 322. (For example, NAND memory) The AVN system 300 may also change the path in the stored location setting and store the path in the external memory 324. (E.g. USB memory, SD memory card, SSD memory, SDHC memory card)

NAND memory is a flash memory in which cells are connected in series and is mainly used for data storage and transportation. Unlike NOR-type flash memory for program code storage, it is fast to delete / write and suitable for large capacity.

USB memory is USB (Universal Serial Bus), which is one of the bus standards used to transfer data between a computer and peripheral devices, and flash memory, a type of semiconductor that can store and store data. ) Is combined. USB memory can be stored or deleted once the data is saved. Unlike RAM, which can't be deleted or modified once the data is saved, or when the power is cut off, all data disappears. There is a characteristic that data is preserved.

Secure Digital (SD) memory cards are a flash memory card format for use in portable devices such as digital cameras, PDAs, and GPS devices. As of 2011, the capacity of the SD card is available from 8 MB to 2 TB. Cards with 4 ~ 32 GB are classified as SDHC memory cards to distinguish between high capacity and SDXC from 64 GB.

Solid state drive (SSD) memory is a device that stores information using a semiconductor. Since SSD memory has no mechanical moving parts, it significantly reduces hard disk drive problems such as long seek times, hardware delays, and data transfer failure rates. SSDs usually use non-volatile NAND flash memory and have no data corruption even in the event of a sudden power failure.

Also, in another embodiment of the present invention, the AVN system 300 switches the memory that is automatically stored when the amount of data exceeds the capacity of the internal memory 322 or when the state of the internal memory 322 is bad. 324 may be configured to store the image information.

In relation to the output of the image information, the display unit 330 (for example, the LCD screen) of the AVN system 300 may display an image currently recorded in the black box 200. In this case, the AVN system 300 and the black box 200 are connected by short-range wireless communication. The AVN system 300 may read and display image information stored in the internal memory 322 and / or the external memory 324, and may reproduce and display an image transmitted from a black box in real time.

Meanwhile, the storage 320 may store not only an image but also a sound or an audio. It collects sound from the black box and passes it along with the image to the AVN system so that the AVN system stores the image and sound together, or the AVN system automatically or by the driver fosters the image acquired from the black box. You can also save video, sound and / or audio together by typing.

In addition, the control mode 240 in the black box can set the recording mode. The storage time depends on the recording quality. The video format is stored in the form of an avi file, and the driver can select VGA (640 × 480), QVGA (320 × 240), D1 (720 × 480), or HD (1280 × 720) according to the recording quality. The recording mode is provided with the modes of always-on, emergency, parking, and photography.

The normal mode is to photograph the situation of the vehicle at normal times, the emergency mode is to photograph the emergency situation of the vehicle, and the parking mode is to photograph the situation where the vehicle is parked. The picture taking mode is to take a still picture. The picture format uses jpeg.

6 is a flowchart illustrating a method of acquiring an image of a black box linked AVN system according to an embodiment of the present invention (S400).

Referring to FIG. 6, a process of acquiring an image according to an exemplary embodiment of the present invention will be described below.

The surrounding of the vehicle is photographed using the camera unit 210 of the black box 200 (S410).

The transmitter / receiver 230 of the black box 200 transmits the image information captured by the camera unit 210 to the AVN system 300 (S420).

The transmitter / receiver 310 of the AVN system 300 receives image information (S430).

In this case, the transmitter / receiver 230 of the black box 200 and the transmitter / receiver 310 of the AVN system 300 may communicate with each other using short-range wireless communication. (E.g., Bluetooth, ZigBee, IRDA, Wireless Lan and Ultra-Wideband UWB)

The storage 320 of the AVN system determines a storage path (S440). In this case, the storage path includes an internal memory 322 or an external memory 324.

If it is determined that the image information is stored in the internal memory 322 (S450), the image information is stored in the internal memory 322 (S460). (E.g. NAND memory)

As a result of the determination, when the internal memory is not selected as the storage path (S450), the image information is stored in the external memory 324 (S470). (E.g. USB memory, SD memory card, SSD memory, SDHC memory card)

The storage location is basically determined according to the initial value of the system or the path specified by the driver. However, in the AVN system 300, the amount of data exceeds the capacity of the internal memory 322 even if the storage path is set to the internal memory 322. Alternatively, when the state of the internal memory 322 is poor, the memory may be configured to switch the automatically stored memory to store image information in the external memory 324.

As described above, in the black box AVN system according to the present invention, the driver can immediately check through the LCD screen of the AVN system without having to connect to an external PC or a laptop to check the recorded image of the vehicle black box. In addition, the driver can view and edit the recorded video in real time through the AVN system and store the recorded video in an external memory (eg USB memory).

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments described in the present invention are not intended to limit the scope of the present invention, but are intended to be illustrative, and the scope of the present invention is not limited by these embodiments. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents, which fall within the scope of the present invention as claimed.

Claims (5)

Transmitting and receiving unit for transmitting and receiving data with the black box in the vehicle;
A storage unit including an internal memory and / or an external memory for storing the image information from the black box;
A display unit for outputting the image information from the black box; And
Control unit for controlling the black box, the transmission / reception unit, the storage unit and the display unit
Black box interworking AVN system comprising a.
The method of claim 1, wherein the black box
A camera unit for photographing the periphery of the vehicle;
An image processor which receives an image captured by the camera as an input and processes the image at a predetermined resolution;
A transmitter / receiver for transmitting and receiving data with the AVN system;
A power supply unit including an internal battery and controlling external power;
Control unit for controlling the camera unit, the image processing unit, the power supply unit, the transmission / reception unit
Black box interworking AVN system comprising a.
The method of claim 1,
The storage unit, when the amount of data exceeds the capacity of the internal memory or the state of the internal memory is bad, the black box linked AVN system, characterized in that for storing the image information in the external memory.
The method of claim 2,
Black box linked AVN system, characterized in that for playing back the image processed by the image processing unit in the black box in real time.
The method of claim 1,
The transmitting / receiving unit is a black (Blue tooth), ZigBee (ZigBee), infrared communication (IrDA), wireless LAN (Wireless Lan) and ultra-wideband communication UWB (Ultra-wideband) using a near-field wireless communication method using the black Black box linked AVN system, characterized in that the communication with the box.

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