KR20120061787A - Automotive rear-view monitoring method and apparatus using WiFi camera and smartphone application - Google Patents

Automotive rear-view monitoring method and apparatus using WiFi camera and smartphone application Download PDF

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KR20120061787A
KR20120061787A KR1020120052627A KR20120052627A KR20120061787A KR 20120061787 A KR20120061787 A KR 20120061787A KR 1020120052627 A KR1020120052627 A KR 1020120052627A KR 20120052627 A KR20120052627 A KR 20120052627A KR 20120061787 A KR20120061787 A KR 20120061787A
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South Korea
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vehicle
camera
smartphone
wireless communication
communication unit
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KR1020120052627A
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Korean (ko)
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김승일
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김승일
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/102—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security company or the owner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
    • B60R2300/8066—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring rearward traffic

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Function (AREA)
  • Studio Devices (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE: A back camera function realization method for a vehicle and apparatus thereof are provided to realize cheaply and effectively functions by executing an application related to a smart phone including a Wi-Fi function. CONSTITUTION: A camera unit(21) acquires a back image of a vehicle by being installed at a back side of the vehicle. A wireless communication unit(22) transmits a back image signal through a Wi-Fi network by packetizing the back image signal to a compressed data stream. An operation determination unit(23) determines the transmission of back image information by determining the process state of the vehicle. A smart phone(27) executes high speed data communication with the wireless communication unit by searching a Wi-Fi signal according to the operation of a smartphone back camera application.

Description

와이파이 카메라와 스마트폰 어플리케이션을 사용한 차량용 후방카메라 기능 구현 방법 및 장치{Automotive rear-view monitoring method and apparatus using WiFi camera and smartphone application}Vehicle rear camera function and apparatus using Wi-Fi camera and smartphone application {Automotive rear-view monitoring method and apparatus using WiFi camera and smartphone application}

본 발명은 자동차의 주요 안전운행 장치인 후방카메라 기능을 와이파이 카메라와 스마트폰 어플리케이션을 이용해 구현하는 방법 및 장치에 관한 것이다.The present invention relates to a method and apparatus for implementing a rear camera function, which is a main safety driving device of a vehicle, using a Wi-Fi camera and a smartphone application.

[문헌 1] 10-2010-0088283, 2010. 9. 9[Document 1] 10-2010-0088283, September 9, 2010

[문헌 2] 10-2011-0120647, 2011. 11. 18[Document 2] 10-2011-0120647, November 18, 2011

근래 차량용 내비케이션 및 블랙박스 제품 또는 장치들이 스마트폰에서 동작 되는 관련 어플리케이션(이하 앱)에 의해 시장이 급속히 잠식되고 있으며, 높은 스마트폰의 보급률과 성능에 힘입어 더욱 다양한 자동차 전용 전장제품의 기능과 역할을 흡수하고 대체하려는 추세이다. 이러한 자동차용 스마트폰 앱의 발전에 있어, 현재까지의 내비게이션, 블랙박스 등의 기능을 단순 모방하거나 구현한 단계에서 벗어나 점차 자동차 전용 전장 기능까지 흡수, 통합하여 진화하고 있다.Recently, the market is rapidly being eroded by the related applications (hereinafter referred to as apps) in which car navigation and black box products or devices are operated on smartphones, and thanks to the high penetration rate and performance of smartphones, The trend is to absorb and replace roles. In the development of such smart phone app for the car, it is gradually evolving by absorbing and integrating the electronic function of the automobile, instead of simply imitating or implementing the functions such as navigation and black box.

많은 스마트폰 소지자가 설치, 사용 중인 스마트폰의 내비게이션, 블랙박스 앱과 달리 본 발명이 제안한 후방카메라 앱은 스마트폰 자체의 기능과 사양으로 구현이 어렵다. 따라서, 본 발명은 스마트폰에 후방카메라 기능의 앱 구현을 위해 자동차 뒷부분에 설치되어 후방영상을 취득하는 별도의 카메라 기능과, 이로부터 출력되는 후방영상 신호를 압축해 패킷 데이터 처리하고 와이파이(WiFi)를 통해 전송하는 와이파이 무선통신 기능, 사용자가 소지한 스마트폰에 설치된 후방카메라 앱 구동에 따라 자동으로 와이파이 연결과 전송 상태를 판별하고 전송된 후방영상을 사용자의 스마트폰을 통해 표시하는 기능 등을 통해 해결하고자 한다.Unlike many smartphone owners are installing and using the smartphone navigation, black box apps, the rear camera app proposed by the present invention is difficult to implement the features and specifications of the smartphone itself. Therefore, the present invention is installed in the rear of the car to implement the app of the rear camera function on the smartphone and a separate camera function to acquire a rear image, and compresses the rear image signal output from it to process packet data and Wi-Fi (WiFi) Through the Wi-Fi wireless communication function to transmit through, the rear camera app installed in the user's smart phone automatically determines the Wi-Fi connection and transmission status, and displays the transmitted rear image through the user's smartphone I want to solve.

본 발명은 상기 목적을 달성하기 위해, 차량 뒷부분에 설치되어 자동차의 후방영상을 취득하는 카메라부(21); 이로부터 출력되는 후방영상 신호를 와이파이 통신속도에 맞게 전송하기 위해 정보량을 줄이는 영상 압축과 압축된 데이터 스트림을 패킷(Packet)화하고 이를 와이파이를 통해 전송하는 무선통신부(22); 자동차의 진행 상태를 판별해 후진 시 스마트폰(27)으로 무선통신부(22)를 통해 후방영상 정보의 전송을 결정하는 동작판별부(23); 사용자의 스마트폰 후방카메라 앱 구동에 따라 와이파이 신호를 검색해 무선통신부(22)와 네트워크를 연결해 고속의 데이터 통신하는 스마트폰(27); 및 무선통신부(22)와 주기적으로 와이파이 연결 상태를 관리하고 압축된 후방영상 데이터 전송에 따라 전달된 압축 데이터를 원래로 복원하여 스마트폰의 디스플레이를 통해 사용자에게 자동차의 후방영상 정보를 표시하는 앱(30);을 포함한다.In order to achieve the above object, the present invention, the camera unit 21 is installed at the rear of the vehicle to acquire a rear image of the vehicle; A wireless communication unit 22 for packetizing an image compression and a compressed data stream reducing the amount of information in order to transmit the rear image signal outputted therefrom according to a Wi-Fi communication speed, and transmitting the packet through the Wi-Fi; An operation discriminating unit 23 for determining a progress state of the vehicle and determining transmission of the rear image information through the wireless communication unit 22 to the smart phone 27 when the vehicle reverses; A smart phone 27 for retrieving Wi-Fi signals according to driving of the smartphone rear camera app of the user and connecting the wireless communication unit 22 and the network for high-speed data communication; And an app for periodically managing the Wi-Fi connection state with the wireless communication unit 22 and restoring the compressed data transmitted according to the compressed rear image data transmission and displaying the rear image information of the car to the user through the display of the smartphone. 30);

또한, 스마트폰 후방카메라 앱(30) 구동 시 스마트폰(27)이 주변의 모든 와이파이 네트워크를 검색하지 않고 사용자가 사전에 설정한 무선통신부(22)의 네트워크 정보만 검색하므로 빠른 와이파이 연결이 가능하고 타인의 네트워크 연결을 제한하기 위한 보안용 암호(Lock) 등을 스마트폰 후방카메라 앱(30)의 설정 상에 사용자가 등록해 사용할 수 있게 하는 것이 바람직하다.In addition, when the smartphone rear camera app 30 is running, the smart phone 27 searches only the network information of the wireless communication unit 22 that is set in advance by the user without searching all the surrounding Wi-Fi networks, thereby enabling a quick Wi-Fi connection. It is desirable to allow a user to register and use a security password (Lock) for limiting the network connection of others on the setting of the smartphone rear camera app 30.

또한 상기 스마트폰 후방카메라 앱(30)에 있어, 통상 사용자가 차량 운행 중 함께 사용할 확률이 높은 스마트폰 내비게이션이나 블랙박스 앱과 기능을 통합하여 사용자 편리성과 활용도를 더욱 크게 제공하는 것이 바람직하다.In addition, in the smartphone rear camera app 30, it is desirable to provide a greater user convenience and utilization by integrating a function with a smartphone navigation or a black box app which is usually more likely to be used by the user while driving the vehicle.

와이파이 카메라모듈(20)에 있어, 무선통신부(22)는 스마트폰(27)의 와이파이 기능에 따라 와이파이 공유(AP: Access Point) 또는 와이파이 다이렉트(direct)의 P2P(Peer to Peer) 연결 서비스가 가능하게 하는 것이 바람직하다.In the Wi-Fi camera module 20, the wireless communication unit 22 is capable of P2P (Peer to Peer) connection service of Wi-Fi sharing (AP: Access Point) or Wi-Fi Direct (AP) according to the Wi-Fi function of the smart phone 27. It is desirable to make it.

내비게이션, 블랙박스 등 다양한 전장제품에 대한 스마트폰의 응용에 있어, 자동차의 주요 안전 운행장치인 후방카메라 기능을 와이파이 기능이 구비된 스마트폰과 관련 스마트폰 앱으로 구현할 경우, 현재 고가의 제품을 장착할 필요없이 값싸고 용이하게 기능을 구현, 제공하므로 자동차 안전사고를 예방할 수 있다.In the application of smartphones to various electronic products such as navigation and black boxes, when the rear camera function, which is the main safety driving device of the car, is implemented as a smartphone equipped with a Wi-Fi function and a related smartphone app, it is currently equipped with an expensive product. Inexpensive and easy to implement and provide functions to prevent car accidents.

도 1은 기존 자동차의 후방카메라 구성도,
도 2는 본 발명에 따른 스마트폰용 와이파이 후방카메라 블록도,
도 3은 본 발명에 따른 스마트폰 후방카메라 앱 예시도이다.1 is a diagram illustrating a rear camera of an existing vehicle;
2 is a block diagram of a Wi-Fi rear camera for a smartphone according to the present invention;
3 is an exemplary view of a smartphone rear camera app according to the present invention.

이하 도면을 참조하여 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

자동차(10)에 장착되어 후방 영상을 제공하므로 주차나 후진 시 안전사고를 예방할 목적으로 사용되는 기존의 차량용 후방카메라 장치는 차량 제작 시 장착하는 순정형과 출고 후 장착하는 비순정형으로 나뉜다. 특히, 도 1과 같이, 비순정형 제품의 기능 구성은 차량 뒤의 트렁크 부분에 보통 설치되어 후방을 촬영하는 카메라부(11), 카메라의 출력 영상을 전달하는 신호 케이블의 연결부(13), 차량의 후진 시 카메라에 동작 전원을 전달하는 후진등 전원부(14) 및 카메라에서 전달된 영상신호를 운전자에게 표시하는 디스플레이부(12)로 이루어진다.Since the rear camera is mounted on the vehicle 10 and provides a rear image, the conventional rear camera device for a vehicle used for the purpose of preventing a safety accident during parking or reversing is divided into a genuine type to be mounted at the time of manufacturing a vehicle and an irregular type to be mounted after leaving the vehicle. In particular, as shown in Figure 1, the functional configuration of the non-formal product is usually installed in the trunk portion of the rear of the vehicle camera portion 11 for photographing the rear, the connecting portion 13 of the signal cable for transmitting the output image of the camera, the vehicle It is composed of a reversing lamp power supply unit 14 for transmitting the operating power to the camera when the reverse and the display unit 12 for displaying the image signal transmitted from the camera to the driver.

이때 순정형과 달리 비순정 제품은 연결부(13)의 유선화 작업에 많은 시간과 비용이 요구되기 때문에 영상 신호를 아날로그 알에프(RF: Radio Frequency) 신호로 변조하여 전송하는 방식도 이용되고 있지만 아날로그 품질의 한계와 혼선으로 인해 현실적으로 사용이 제한적이다. 그러나, 차량 제작 시 장착되는 순정 제품은 연결부(13)의 유선 매립으로 높은 통신품질, 강한 혼선방지 및 우수한 자동차 인테리어의 일체감 등 월등한 품질력에 비해 고 가격으로 인한 구매력이 낮다.At this time, unlike the pure type, since the non-pure product requires a lot of time and cost to wire the connection part 13, a method of modulating and transmitting an image signal to an analog radio frequency (RF) signal is also used. Due to limitations and confusion, their use is practically limited. However, the genuine product to be mounted at the time of manufacturing the vehicle is low in purchasing power due to the high price compared to the superior quality such as high communication quality, strong cross-talk prevention and excellent car interior unity by the landfill of the connection portion (13).

본 발명은 기존 순정 제품의 높은 가격 장벽으로 인한 낮은 장착률과 비순정 제품이 갖는 품질과 장착성의 문제를 제거하여 스마트폰을 사용하는 사용자 누구나 쉽고 값싸게 차량에 장착해 사용이 가능할 수 있도록 후방카메라 기능을 앱으로 구현, 제공한다. 본 발명의 구성은 도 2와 같이 사용자가 별도로 구입하여 차량 뒷부분에 장착되는 와이파이 카메라모듈(20)과 자동차 대시보드나 앞유리에 설치된 거치대(26)와 결합해 통상 사용되는 사용자 스마트폰(27)의 두 부분으로 나눈다.The present invention eliminates the problems of low installation rate due to the high price barrier of the existing genuine products and quality and mounting characteristics of the non-genuine products, so that anyone using a smartphone can be easily and cheaply mounted on the vehicle and can be used in the rear camera Implement and provide functions as an app. The configuration of the present invention is a user smartphone (27) commonly used in combination with the cradle 26 installed on the car dashboard or windshield and the Wi-Fi camera module 20 to be separately purchased by the user mounted on the rear of the vehicle as shown in FIG. Divide into two parts.

차량의 뒷부분, 통상 트렁크에 장착되는 와이파이 카메라모듈(20)은 후진 시 후방영상을 촬영하는 카메라부(21), 카메라의 출력인 영상신호를 바로 와이파이로 전송하기에는 데이터량이 너무 크므로 이를 압축하고 와이파이 전송패킷 상의 데이터 페이로드(Payload)에 실어 스마트폰(27)과 통신하는 무선통신부(22), 자동차 후진등(25) 전원을 이용하여 차량의 진행 상태를 판별하고 후진 시 무선통신부(22)의 후방영상신호 전송동작을 결정하는 동작판별부(23), 자동차의 배터리 전원을 사용해 카메라모듈(20)에 전원을 공급하는 전원부(24)로 구성된다.Wi-Fi camera module 20 mounted on the rear of the vehicle, usually the trunk is a camera unit 21 for taking a rear view image when reversing, because the amount of data is too large to directly transmit the video signal output from the camera to the Wi-Fi compressed and Wi-Fi On the data payload (Payload) on the transmission packet to determine the progress state of the vehicle using the wireless communication unit 22, the vehicle back light 25 to communicate with the smart phone 27, the wireless communication unit 22 of the reverse An operation determining unit 23 for determining a rear image signal transmission operation, and a power supply unit 24 for supplying power to the camera module 20 using the battery power of the vehicle.

자동차가 주로 사용되는 야외에 있어, 밤과 낮의 조명 차이가 상당히 크므로 이런 환경 아래 사용하는 카메라부(21)는 광역보정기능(Wide Dynamic Range)을 갖고 있는 것이 바람직하다.In the outdoor where a car is mainly used, the difference in illumination between night and day is considerably large, and therefore, the camera unit 21 used under such an environment preferably has a wide dynamic range.

또한, VGA(640 x 480)급 카메라부(21)를 사용할 경우 출력 영상 데이터 양이 221Mbps(≒ 640 x 480 x 30fps x 24bit)에 달해 통상 < 20~30Mbps 정도의 와이파이 성능으로 데이터 전송이 불가능하다. 따라서, 무선통신부(22)는 카메라부(21)의 영상 출력을 받아 JPEG, MJPEG, MPEG, H.26x 등과 같은 영상 압축 방식을 사용해 전송량을 줄인다. 이때, 후방카메라 영상의 경우 운전자가 보는 후방영상과 실제 후방영상 간에 데이터 처리와 전송에 따른 시간 차(delay)가 발생하고, 이 중 데이터 처리에 따른 시간 차 영향이 크므로 가급적 이 부분을 줄이기 위해 MPEG, H.26x와 같은 프레임간(Inter-frame) 코딩에 따른 딜레이가 큰 방식이 아닌 JPEG, MJPEG과 같이 프레임내(Intra-frame) 방식을 사용해 압축하는 것이 바람직하다.In addition, when the VGA (640 x 480) camera unit 21 is used, the output image data amount is 221 Mbps (≒ 640 x 480 x 30fps x 24bit), which is why it is impossible to transmit data with Wi-Fi performance of <20 to 30Mbps. . Therefore, the wireless communication unit 22 receives the image output from the camera unit 21 and reduces the transmission amount by using an image compression scheme such as JPEG, MJPEG, MPEG, H.26x, and the like. In this case, in the case of the rear camera image, a time delay occurs due to data processing and transmission between the rear image viewed by the driver and the actual rear image. It is preferable to compress using an intra-frame method such as JPEG and MJPEG rather than a large delay due to inter-frame coding such as MPEG and H.26x.

자동차의 운행 상태 중 후진 여부를 파악해 후방영상 전송을 판단하기 위해 동작판별부(23)에 후진 감지신호로 후진등의 전원선(자동차의 경우, 통상 +12V)을 연결해 입력한다. 따라서, 후진 시 후진등이 켜지고 동작판별부(23)로 연결된 후진 감지신호 전압이 동시 인가되어, 동작판별부(23)는 카메라부(21)와 무선통신부(22)를 작동시켜 후방영상 정보를 전방의 스마트폰으로 와이파이를 통해 전송한다.In order to determine whether the vehicle is driving backward and to determine the rear image transmission, the operation determining unit 23 connects a power line (reversely, + 12V in the case of a car) to the operation detection unit 23 and inputs the input signal. Accordingly, when the reverse light is turned on and the reverse sensing signal voltage connected to the operation determiner 23 is simultaneously applied, the operation determiner 23 operates the camera unit 21 and the wireless communication unit 22 to display rear image information. Send via WiFi to the smartphone in front of you.

일반적으로 차량용 거치대(26)에 장착되어 운전 중 사용자가 편리하게 볼 수 있는 위치에 놓인 스마트폰(27)은 그 종류에 따라 후방카메라 전용 앱(30)을 안드로이드(Android) 마켓이나 애플의 앱스토어에서 폰에 직접 다운받아 설치한다. 사용자는, 그림 3과 같이, 설치된 후방카메라 앱(30)을 처음 동작 시 설정을 통해 사용자의 차량에 설치된 후방카메라와 와이파이 네트워크 및 연결제한 암호(Lock) 등을 사전 설정하므로, 이후 앱(30) 구동 시 설정된 네트워크를 자동으로 우선 검색하여 빠른 연결과 보안이 가능하게 한다.In general, the smart phone 27 mounted on the vehicle holder 26 and placed in a position that the user can conveniently see while driving the rear camera-only app 30 depends on the type of the Android market or the Apple App Store. Download and install directly on your phone from. As shown in FIG. 3, the user presets the rear camera installed in the user's vehicle and the Wi-Fi network and the connection restriction password (Lock) through the setup at the first operation of the installed rear camera app 30. It automatically searches for the set network automatically when it starts, enabling quick connection and security.

또한 후방카메라 전용 앱(30)의 설치에 있어, 일반 사용자가 와이파이 네트워크 정보나 보안 등을 설정하기 어려울 수 있으므로 그림 3과 같이 차량 뒤에 설치하는 와이파이 카메라모듈(20)의 제품 시리얼번호(S/N: Serial Number)(31)를 이용해 자동으로 네트워크 정보 및 연결제한 암호가 설정되게 한다.In addition, in the installation of the rear camera dedicated app 30, since the general user may be difficult to set the network information or security, such as the product serial number of the Wi-Fi camera module 20 installed behind the vehicle as shown in Figure 3 (S / N : Serial number (31) is used to automatically set the network information and connection restriction password.

Claims (4)

자동차 후방카메라 기능을 구현하는 스마트폰에 있어,
차량 뒷부분에 설치되어 자동차의 후방영상을 취득하는 카메라부(21);
이로부터 출력되는 후방영상 신호를 와이파이 통신속도에 맞게 전송하기 위해 정보량을 줄이는 영상 압축과 압축된 데이터 스트림을 패킷(Packet)화하고 이를 와이파이를 통해 전송하는 무선통신부(22);
자동차의 진행 상태를 판별해 후진 시 스마트폰(27)으로 무선통신부(22)를 통해 후방영상 정보의 전송을 결정하는 동작판별부(23);
사용자의 스마트폰 후방카메라 앱 구동에 따라 와이파이 신호를 검색해 무선통신부(22)와 네트워크를 연결해 고속의 데이터 통신하는 스마트폰(27); 및
무선통신부(22)와 주기적으로 와이파이 연결 상태를 관리하고 압축된 후방영상 데이터 전송에 따라 전달된 압축 데이터를 원래로 복원하여 스마트폰의 디스플레이를 통해 사용자에게 자동차의 후방영상 정보를 표시하는 앱(30);을 포함하는 것을 특징으로 하는 자동차 후방카메라 기능의 스마트폰.In a smartphone that implements a car rear camera function,
A camera unit 21 installed at the rear of the vehicle to acquire a rear image of the vehicle;
A wireless communication unit 22 for packetizing an image compression and a compressed data stream reducing the amount of information in order to transmit the rear image signal outputted therefrom according to a Wi-Fi communication speed, and transmitting the packet through the Wi-Fi;
An operation discriminating unit 23 for determining a progress state of the vehicle and determining transmission of the rear image information through the wireless communication unit 22 to the smart phone 27 when the vehicle reverses;
A smart phone 27 for retrieving Wi-Fi signals according to driving of the smartphone rear camera app of the user and connecting the wireless communication unit 22 and the network for high-speed data communication; And
App to manage the state of the Wi-Fi connection periodically with the wireless communication unit 22 and restore the compressed data transmitted according to the compressed rear image data transmission to the original to display the rear image information of the car to the user through the display of the smartphone (30) Smartphone; the rear camera function of the vehicle comprising a. 제 1항에 있어,
상기 스마트폰(27)의 후방카메라 앱(30)에 있어, 운전자의 사용편리성과 활용도를 높이기 위해 기존의 스마트폰용 내비게이션, 블랙박스 앱과 기능을 통합해 운영하는 것을 특징으로 하는 차량용 내비게이션, 블랙박스 스마트폰 앱.The method of claim 1,
In the rear camera app 30 of the smart phone 27, in order to increase the driver's ease of use and utilization, navigation, a black box for the vehicle, the car navigation, characterized in that the integrated operation with the app and functions Smartphone app. 제 1항에 있어,
상기 스마트폰(27)과 무선통신부(22) 간 빠른 와이파이 네트워크 연결과 보안을 위해 무선통신부(22)의 와이파이 네트워크 정보와 연결제한 암호(Lock) 등을 앱 상 사전 설정을 하여 사용하는 것을 특징으로 하는 자동차 후방카메라 기능의 스마트폰.The method of claim 1,
For quick Wi-Fi network connection and security between the smartphone 27 and the wireless communication unit 22, the Wi-Fi network information of the wireless communication unit 22 and a connection restriction password (Lock), etc., by using a preset in the app Smartphone with car rearview camera. 차량용 와이파이 후방카메라에 있어,
차량 뒷부분에 설치되어 후방 영상을 취득하는 카메라부(21);
카메라부(21)의 영상 출력신호를 와이파이 전송속도에 맞추기 위해 정보량을 감축하는 영상압축과 압축된 데이터를 패킷(Packet)화하고 통신하는 상대의 와이파이 네트워크 기능에 따라 와이파이 공유(AP: Access Point) 또는 와이파이 다이렉트(direct)의 P2P(Peer to Peer) 연결 기능을 지원하는 무선통신부(22); 및
자동차의 진행 상태를 판별해 후진 시 무선통신부(22)를 통해 후방영상신호를 스마트폰(27)으로 전송을 결정하는 동작판별부(23);를 포함하는 것을 특징으로 하는 와이파이 카메라모듈(20).In the car's Wi-Fi rear camera,
A camera unit 21 installed at the rear of the vehicle to acquire a rear image;
In order to match the video output signal of the camera unit 21 with the Wi-Fi transmission speed, the Wi-Fi sharing is performed according to the video compression that reduces the amount of information and the Wi-Fi network function of the packetized and communicated data. Or a wireless communication unit 22 supporting a peer to peer (P2P) connection function of Wi-Fi Direct; And
Wi-Fi camera module 20 comprising a; operation determining unit 23 for determining the progress of the vehicle to determine the transmission of the rear image signal to the smartphone 27 through the wireless communication unit 22 when the reverse; .
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Cited By (7)

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KR101221427B1 (en) * 2012-09-11 2013-01-21 주식회사 파인디지털 Automatic communication method between smart phone and navigation device when charging smart phone
CN103067266A (en) * 2012-12-26 2013-04-24 大唐微电子技术有限公司 Vehicle-mounted intelligent gateway, vehicle-mounted data transmission system and data transmission method
CN103303221A (en) * 2013-05-16 2013-09-18 郭荣 Vehicle-mounted wireless data image sending and mobile phone display system
KR101654034B1 (en) 2015-09-15 2016-09-05 (주)삼성아이티브이 Vehicle rear view camera interface system using mobile phone and their operational methods
CN106125601A (en) * 2016-06-30 2016-11-16 大连楼兰科技股份有限公司 Mobile phone shakes the device and method starting automobile
KR101705042B1 (en) 2016-04-15 2017-02-13 (주)삼성아이티브이 Smartphone connected to the vehicle door opening detection system and its operation method
KR20210085000A (en) 2019-12-30 2021-07-08 주식회사 초송 Smartphone front and rear camera device that can be linked and smartphone interworking method using vehicle front and rear camera device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101221427B1 (en) * 2012-09-11 2013-01-21 주식회사 파인디지털 Automatic communication method between smart phone and navigation device when charging smart phone
CN103067266A (en) * 2012-12-26 2013-04-24 大唐微电子技术有限公司 Vehicle-mounted intelligent gateway, vehicle-mounted data transmission system and data transmission method
CN103303221A (en) * 2013-05-16 2013-09-18 郭荣 Vehicle-mounted wireless data image sending and mobile phone display system
KR101654034B1 (en) 2015-09-15 2016-09-05 (주)삼성아이티브이 Vehicle rear view camera interface system using mobile phone and their operational methods
KR101705042B1 (en) 2016-04-15 2017-02-13 (주)삼성아이티브이 Smartphone connected to the vehicle door opening detection system and its operation method
CN106125601A (en) * 2016-06-30 2016-11-16 大连楼兰科技股份有限公司 Mobile phone shakes the device and method starting automobile
KR20210085000A (en) 2019-12-30 2021-07-08 주식회사 초송 Smartphone front and rear camera device that can be linked and smartphone interworking method using vehicle front and rear camera device

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