WO2021118214A1 - Vehicle opening/closing system using sound wave communication, mounted in form of module near driver's seat - Google Patents

Vehicle opening/closing system using sound wave communication, mounted in form of module near driver's seat Download PDF

Info

Publication number
WO2021118214A1
WO2021118214A1 PCT/KR2020/017894 KR2020017894W WO2021118214A1 WO 2021118214 A1 WO2021118214 A1 WO 2021118214A1 KR 2020017894 W KR2020017894 W KR 2020017894W WO 2021118214 A1 WO2021118214 A1 WO 2021118214A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
vehicle
closing
sound wave
mobile device
Prior art date
Application number
PCT/KR2020/017894
Other languages
French (fr)
Korean (ko)
Inventor
조원기
류제인
김동환
Original Assignee
주식회사 원키
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 원키 filed Critical 주식회사 원키
Publication of WO2021118214A1 publication Critical patent/WO2021118214A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • 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
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00801—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by acoustic waves

Definitions

  • the present invention relates to a vehicle opening/closing system for a vehicle, that is, a smart key system.
  • a vehicle opening/closing system for a vehicle that is, a smart key system.
  • it relates to a system that is installed around the driver's seat in the form of a module to calculate the time it takes for the sound waves generated by the car to reach the driver's smartphone operated by the car's smart key.
  • the vehicle opening/closing system using radio communication which is currently generally applied, has a weakness in that it is vulnerable to radio wave hacking such as a relay station attack. In addition, it is difficult to open and close the car door with only a smartphone, and it is inconvenient to carry a keypop separately.
  • a vehicle opening/closing system provided in the form of a module around the driver's seat for easy installation is required.
  • An object of the present invention is to provide a system for controlling the opening and closing of a vehicle door without carrying a separate keypop.
  • the present invention provides an opening/closing module installed in a vehicle to control opening and closing of a vehicle door, and a mobile application that is connected to the opening/closing module through wireless communication, and is equipped with an application for managing commands related to opening and closing the door
  • a vehicle opening/closing system comprising a device (2) is provided.
  • the driver can open and close the door of the vehicle without carrying a separate keypop.
  • vehicle theft such as relay hacking attack (RSA) is prevented.
  • RSA relay hacking attack
  • FIG. 1 schematically shows a vehicle opening/closing system according to the present invention.
  • FIG. 2 illustrates that the opening/closing module according to an embodiment of the present invention is mounted on a vehicle.
  • FIG 3 shows an example of a method of calculating a distance between a vehicle and a mobile device using a sound wave transmitted from an opening/closing module according to the present invention.
  • FIG. 4 is a diagram illustrating a wireless communication connection distance and a distance for transmitting a permission signal according to an embodiment of the present invention.
  • an opening/closing module installed in a vehicle to control opening/closing of a door of the vehicle
  • a mobile device connected to the opening/closing module through wireless communication and equipped with an application for managing a command related to opening/closing a door includes;
  • the opening/closing module generates a sound wave signal
  • the mobile device receives the sound wave signal, and calculates a distance between the mobile device and the vehicle based on the strength of the sound wave signal;
  • the mobile device transmits a command for controlling the opening and closing of the vehicle door to the opening/closing module based on the calculated distance.
  • a vehicle opening/closing system includes an opening/closing module 1 and a mobile device 2 installed in a vehicle.
  • the opening/closing module 1 is installed in a vehicle and configured to control opening and closing of a door of the vehicle.
  • the opening/closing module 1 may be equipped with a keyfob provided as a basis of the vehicle. More preferably, a board built into the key pop is mounted, and the door is opened and closed by electrically operating a door open/close switch built into the board.
  • the mobile device 2 is a configuration in which an application for managing a command related to opening and closing a door is carried by a user and mounted thereon.
  • the mobile device 2 and the opening/closing module 1 may be connected through wireless communication. Accordingly, the mobile device 2 transmits a command related to opening and closing the door to the opening/closing module 1 through wireless communication, and the opening/closing module 1 opens and closes the door of the vehicle according to the command.
  • the mobile device 2 measures the distance between the vehicle and the mobile device 2 using sound waves, and controls opening and closing of the door based on the measured distance.
  • Bluetooth or Wi-Fi uses a high frequency of several GHz, whereas sound waves use a frequency of several kHz, which is about 1/1,000,000 of that. can be measured
  • the opening/closing module 1 generates a sound wave signal
  • the mobile device 2 receives the sound wave signal and determines the distance between the mobile device 2 and the vehicle based on the strength of the sound wave signal, that is, decibels. and transmits a command for controlling the opening and closing of the door to the opening/closing module 1 based on the calculated distance. Accordingly, door opening and closing is controlled only when the user approaches the vehicle while carrying the mobile device 2 , and vehicle theft by RSA is prevented.
  • the opening/closing module 1 may include a communication module 11 and a speaker module 12 .
  • the communication module 11 is configured to be connected to the mobile device 2 through wireless communication.
  • the wireless communication may be a commonly used type of wireless communication such as Bluetooth or Wi-Fi. More preferably, it may be Bluetooth Low Energy (BLE).
  • BLE Bluetooth Low Energy
  • the present invention can be easily implemented in a general mobile device 2 such as a smart phone.
  • such wireless communication itself has a connection limit distance of several meters to about 10 meters, there is an effect that the distance range is basically limited.
  • the speaker module 12 is a component for generating a sound wave signal.
  • the speaker module 12 may be a speaker for generating a sound wave signal of an inaudible frequency of 17 kHz or higher.
  • the mobile device 2 receives the sound wave signal and calculates the distance between the driver's mobile device 2 and the vehicle.
  • the mobile device 2 may include a sound wave receiving unit 21 , a communication unit 22 , and a control unit 23 .
  • the sound wave receiver 21 is configured to receive the sound wave signal. This includes the microphone included in a typical smartphone.
  • the sound wave receiving unit 21 is provided as a sound wave receiving unit 21 capable of receiving at least a sound wave of a frequency of 20 kHz.
  • the communication unit 22 is configured to be connected to the communication module 11 through wireless communication.
  • it may be a Bluetooth or Wi-Fi module. More preferably, it may be a low energy Bluetooth module.
  • the control unit 23 is configured to process a command related to opening/closing of a door.
  • the control unit 23 may be a processor mounted on a smartphone.
  • the opening/closing module 1 may be disposed in the center of the inside of the vehicle. More preferably, it may be installed in the center of the vehicle and around the driver's seat. The closer the opening/closing module 1 is to the center of the vehicle interior, the greater the distance from the opening/closing module 1 to the vehicle exterior wall, so that it is easier to recognize whether the location of the mobile device 2 is inside the vehicle or outside the vehicle. In addition, when installed around the driver's seat, the driver can easily operate the opening/closing module 1 .
  • FIG 3 shows an example of a method of calculating the distance between the vehicle and the mobile device 2 using the sound wave transmitted from the opening/closing module 1 according to the present invention.
  • a smart key application (hereinafter referred to as an APP) is executed in the driver's mobile device 2 ( S200 ).
  • the mobile device 2 is, for example, a smartphone, and any device capable of receiving a sound wave signal and processing the sound wave signal in a processor, such as a smart watch or a tablet, is possible.
  • the app executed in the mobile device 2 may operate in the background, and periodically or non-periodically performs an action such as ping for wireless communication connection with the vehicle.
  • the driver's mobile device When the distance between the mobile device 2 and the opening/closing module 1 is within a predetermined distance (eg, 25m) or the driver's mobile device 2 and the opening/closing module 1 are connected via Bluetooth, the driver's mobile device ( The wireless communication connection request transmitted in 2) is transferred to the opening/closing module 1 (S205), and the communication module 11 receives this request.
  • a predetermined distance eg, 25m
  • the opening/closing module 1 transmits a response thereto to the mobile device 2 (S210). Through this, a wireless communication connection is established between the mobile device 2 and the opening/closing module 1 (S215).
  • the mobile device 2 turns on the microphone (Mic ON, S220). This is only an example, and an operation of turning on another type of sensor capable of receiving a sound wave signal transmitted from a vehicle may be performed. Since the microphone is the most common example of a receiver for receiving a sound wave signal, the present invention will be described below based on the microphone.
  • the opening/closing module 1 When the wireless communication connection is established in step S215, the opening/closing module 1 performs an operation to turn on the speaker module 12 (Speaker On, S222).
  • the speaker is an example of a device for transmitting a sound wave signal, and may be an ultrasonic sensor, and the description of the speaker below may be applied to any device for transmitting a sound wave signal.
  • a sound wave is transmitted from the speaker module 12 to the sound wave receiver 21 of the mobile device 2 (S230).
  • the speaker module 12 is provided in plurality and transmits sound waves of different frequencies.
  • the sound wave signal transmitted from the speaker module 12 may be a stereo signal (eg, 2.1 channel or 5.1 channel, etc.), and may be a signal having a frequency in the range of 2 to 24,000 Hz. More preferably, it may be a signal in a band of 19 to 21 kHz, and is also referred to as an inaudible sound wave because people do not hear it well.
  • a stereo signal eg, 2.1 channel or 5.1 channel, etc.
  • the sound wave signal transmitted from the speaker module 12 may be a stereo signal (eg, 2.1 channel or 5.1 channel, etc.), and may be a signal having a frequency in the range of 2 to 24,000 Hz. More preferably, it may be a signal in a band of 19 to 21 kHz, and is also referred to as an inaudible sound wave because people do not hear it well.
  • the controller 23 receives the sound wave signal and calculates the distance between the mobile device 2 and the vehicle ( S235 ).
  • the size of the received sound wave signal is relatively large, and when the mobile device 2 is located outside the vehicle, the size of the received sound wave signal is relatively small, and as the distance increases, the size of the sound wave signal decreases. do. Therefore, when the distance between the mobile device 2 and the vehicle is the reference distance (for example, within 2 m), the strength of the received sound wave signal is set as a predetermined reference value, and when the strength of the received sound wave signal is equal to or greater than the reference value, the mobile device (2) can be determined to have entered within the reference distance from the vehicle. In this case, the sound wave signal can be distinguished from noise through correlation calculation.
  • a plurality of speaker modules 12 may be calculated through triangulation using Heron's formula based on Time of Arrival (ToA) or Time Difference of Arrival (TDoA).
  • Heron's formula is a formula to find the area through the lengths of three sides of a triangle.
  • the mobile device 2 opens the opening/closing module ( 1) transmits a control permission signal (S240).
  • the control permission signal may be transmitted encrypted to prevent hacking.
  • the vehicle may be set to open and close only when the driver directly applies an input (eg, a touch) to the door catcher (not shown).
  • an input eg, a touch
  • the opening/closing module 1 When the opening/closing module 1 receives the control permission signal, it unlocks the door or trunk of the vehicle, or prepares to start the vehicle (S245). For example, when it is determined that the driver's mobile device 2 is located inside the vehicle in a predetermined area within the vehicle as the driver gets on after opening the door (or trunk) of the vehicle, the vehicle's starting is controlled.
  • FIG. 4 shows a wireless communication connection distance (r1) and a distance (r2) for transmitting a permission signal according to an embodiment of the present invention.
  • a permission signal is transmitted based on the distance measurement through the sound wave signal.
  • the door lock of the vehicle is released. Conversely, when the mobile device 2 moves away, opening and closing of the vehicle door is easily controlled by activating the door lock.
  • the biggest advantage of the system according to the present invention is that the user does not need to possess any other module except for the smart phone. Since the sound wave generated by the vehicle is analyzed with the microphone and Bluetooth module that are basically built-in to the mobile device 2 such as a smartphone, a separate module such as a smart key is not required.
  • the parking assist sensor (PAS) attached to the vehicle is basically used for rear detection, or in the case of a vehicle to which the smart parking assist system (SPAS) is applied, a pre-mounted system for the corresponding function is used.
  • a piezo sensor can be used as a speaker.
  • the present invention there is an advantage that it can be simply applied to a case where installation is required in a large number of vehicles such as a rental car or a car sharing company in addition to a general vehicle.
  • the opening/closing module 1 according to the present invention is operated through the vehicle's USB or cigar jack, it is possible to reduce the burden of installation, thereby preventing the consumption of money and time.
  • the system uses a smartphone as a medium, the user can acquire ownership and control of the vehicle through the app without having to personally visit the company to receive the key. In other words, instead of limiting the functions that can be used in the system, money and time benefits can be obtained from the installation.
  • the driver can open and close the door of the vehicle without carrying a separate keypop.
  • vehicle theft such as relay hacking attack (RSA) is prevented.
  • RSA relay hacking attack

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

Disclosed is a system which is mounted in the form of a module inside the interior of a vehicle, and enables a door of the vehicle to be easily opened/closed by means of a mobile device of the driver.

Description

운전석 주변에 모듈 형태로 장착되는 음파 통신을 이용한 차량 개폐 시스템Vehicle opening/closing system using sound wave communication installed in the form of a module around the driver's seat
본 발명은 자동차의 차량 개폐 시스템, 즉, 스마트 키 시스템에 관한 것이다. 보다 자세하게는 자동차에서 발생시킨 음파를 자동차의 스마트 키로 동작하는 운전자의 스마트폰에 도달하는 시간을 계산하는 시스템을 모듈형태로 운전석 주변에 설치하도록 된 시스템에 관한 것이다.The present invention relates to a vehicle opening/closing system for a vehicle, that is, a smart key system. In more detail, it relates to a system that is installed around the driver's seat in the form of a module to calculate the time it takes for the sound waves generated by the car to reach the driver's smartphone operated by the car's smart key.
현재 일반적으로 적용되고 있는 전파 통신을 사용한 자동차 개폐 시스템은 릴레이 스테이션 어택과 같은 전파 해킹에 취약하다는 약점을 가지고 있다. 또한, 스마트폰 만으로는 자동차 문을 여닫는 것이 어렵고 키폽을 별도로 가지고 다녀야 하는 불편함이 있다.The vehicle opening/closing system using radio communication, which is currently generally applied, has a weakness in that it is vulnerable to radio wave hacking such as a relay station attack. In addition, it is difficult to open and close the car door with only a smartphone, and it is inconvenient to carry a keypop separately.
이러한 전파 통신 시스템의 한계를 극복하기 위해 암호화된 음파와 스마트폰을 활용하는 방법이 개발되고 있다. 이때 활용되는 알고리즘으로 블루투스 통신과 음파 통신의 시간차를 통한 차량과 스마트폰 간의 거리를 측위하는 방법이 있다.In order to overcome the limitations of this radio communication system, a method using encrypted sound waves and a smart phone is being developed. As an algorithm used at this time, there is a method of determining the distance between the vehicle and the smartphone through the time difference between Bluetooth communication and sound wave communication.
특히, 설치가 간편하도록 운전석 주변에 모듈 형태로 제공되는 차량 개폐 시스템이 요구된다.In particular, a vehicle opening/closing system provided in the form of a module around the driver's seat for easy installation is required.
[선행기술문헌][Prior art literature]
[특허문헌][Patent Literature]
대한한국 공개특허 제10-2018-0115783호 (2018년 10월 23일 공개)Korean Patent Publication No. 10-2018-0115783 (published on October 23, 2018)
본 발명의 기술적 과제는 별도의 키폽을 휴대하지 않고 차량의 도어의 개폐를 제어하는 시스템을 제공함에 있다.An object of the present invention is to provide a system for controlling the opening and closing of a vehicle door without carrying a separate keypop.
상기한 과제를 해결하기 위해 본 발명은 차량에 설치되어 차량의 도어의 개폐를 제어하는 개폐 모듈 및 상기 개폐 모듈과 무선통신을 통해 연결되고, 도어의 개폐와 관련된 명령을 관리하는 어플리케이션이 탑재된 모바일 장치(2)를 포함하는 차량 개폐 시스템을 제공한다.In order to solve the above problems, the present invention provides an opening/closing module installed in a vehicle to control opening and closing of a vehicle door, and a mobile application that is connected to the opening/closing module through wireless communication, and is equipped with an application for managing commands related to opening and closing the door A vehicle opening/closing system comprising a device (2) is provided.
본 발명에 따르면 운전자가 별도의 키폽을 휴대하지 않고 차량의 도어를 개폐할 수 있다.According to the present invention, the driver can open and close the door of the vehicle without carrying a separate keypop.
또한 본 발명에 따르면 중계 해킹 공격(RSA)와 같은 차량 절도가 방지된다.Also, according to the present invention, vehicle theft such as relay hacking attack (RSA) is prevented.
도 1은 본 발명에 따른 차량 개폐 시스템을 간략하게 나타낸 것이다.1 schematically shows a vehicle opening/closing system according to the present invention.
도 2는 본 발명의 일 실시예에 따른 개폐 모듈이 차량에 장착된 것을 나타낸 것이다.2 illustrates that the opening/closing module according to an embodiment of the present invention is mounted on a vehicle.
도 3은 본 발명에 따라서 개폐 모듈에서 송출된 음파를 이용하여 차량과 모바일 장치 사이의 거리를 계산하는 방법의 일 예를 나타낸다.3 shows an example of a method of calculating a distance between a vehicle and a mobile device using a sound wave transmitted from an opening/closing module according to the present invention.
도 4는 본 발명의 일 실시예에 따른 무선통신 연결 거리 및 허락 신호를 송신하는 거리를 나타낸 것이다.4 is a diagram illustrating a wireless communication connection distance and a distance for transmitting a permission signal according to an embodiment of the present invention.
차량의 도어의 개폐를 제어하는 차량 개폐 시스템에 있어서,In the vehicle opening and closing system for controlling the opening and closing of a vehicle door,
차량에 설치되어 차량의 도어의 개폐를 제어하는 개폐 모듈; 및an opening/closing module installed in a vehicle to control opening/closing of a door of the vehicle; and
상기 개폐 모듈과 무선통신을 통해 연결되고, 도어의 개폐와 관련된 명령을 관리하는 어플리케이션이 탑재된 모바일 장치;를 포함하고,A mobile device connected to the opening/closing module through wireless communication and equipped with an application for managing a command related to opening/closing a door; includes;
상기 개폐 모듈은 음파 신호를 발생하며,The opening/closing module generates a sound wave signal,
상기 모바일 장치는 상기 음파 신호를 수신하고, 상기 음파 신호의 강도에 근거하여 상기 모바일 장치와 상기 차량간 거리를 계산하며,the mobile device receives the sound wave signal, and calculates a distance between the mobile device and the vehicle based on the strength of the sound wave signal;
상기 모바일 장치는 상기 계산된 거리에 근거하여 상기 개폐 모듈에 차량의 도어의 개폐를 제어하는 명령을 전송하는 것을 특징으로 하는 차량 개폐 시스템.The mobile device transmits a command for controlling the opening and closing of the vehicle door to the opening/closing module based on the calculated distance.
이하, 첨부된 도면을 참조하여 본 발명의 실시 예에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 이하에서 개시되는 실시 예에 한정되지 않는다. 또한 도면에서 본 발명을 명확하게 개시하기 위해서 본 발명과 관계없는 부분은 생략하였으며, 도면에서 동일하거나 유사한 부호들은 동일하나 유사한 구성요소들을 나타낸다.Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily implement them. However, the present invention may be implemented in several different forms and is not limited to the embodiments disclosed below. In addition, in order to clearly disclose the present invention in the drawings, parts irrelevant to the present invention are omitted, and the same or similar symbols in the drawings indicate the same but similar components.
본 발명의 목적 및 효과는 하기의 설명에 의해서 자연스럽게 이해되거나 보다 분명해질 수 있으며, 하기의 기재만으로 본 발명의 목적 및 효과가 제한되는 것은 아니다.Objects and effects of the present invention can be naturally understood or made clearer by the following description, and the objects and effects of the present invention are not limited only by the following description.
본 발명의 목적, 특징 및 장점은 다음의 상세한 설명을 통하여 보다 분명해질 것이다. 또한, 본 발명을 설명함에 있어서 본 발명과 관련된 공지 기술에 대한 구체적인 설명이, 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략하기로 한다. 이하, 첨부된 도면을 참조하여 본 발명에 따른 실시예를 상세히 설명하기로 한다.The objects, features and advantages of the present invention will become more apparent from the following detailed description. In addition, in the description of the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 차량 개폐 시스템을 간략하게 나타낸 것이다. 본 발명에 따르면 차량 개폐 시스템은 차량에 설치되는 개폐 모듈(1) 및 모바일 장치(2)를 포함한다.1 schematically shows a vehicle opening/closing system according to the present invention. According to the present invention, a vehicle opening/closing system includes an opening/closing module 1 and a mobile device 2 installed in a vehicle.
개폐 모듈(1)은 차량에 설치되어 차량의 도어의 개폐를 제어하기 위한 구성이다. 바람직하게, 개폐 모듈(1)은 차량의 기본으로 제공되는 키폽(keyfob)이 장착될 수 있다. 보다 바람직하게는, 상기 키폽에 내장되어 있던 보드가 장착되고, 상기 보드에 내장된 도어 개폐 스위치를 전기적으로 조작함으로써 도어를 개폐한다.The opening/closing module 1 is installed in a vehicle and configured to control opening and closing of a door of the vehicle. Preferably, the opening/closing module 1 may be equipped with a keyfob provided as a basis of the vehicle. More preferably, a board built into the key pop is mounted, and the door is opened and closed by electrically operating a door open/close switch built into the board.
모바일 장치(2)는 사용자가 휴대하며, 도어의 개폐와 관련된 명령을 관리하는 어플리케이션이 탑재되는 구성이다. 모바일 장치(2)와 개폐 모듈(1)은 무선통신을 통해 연결될 수 있다. 이에 따라, 모바일 장치(2)는 무선통신을 통해 도어의 개폐와 관련된 명령을 개폐 모듈(1)로 전송하고, 개폐 모듈(1)은 명령에 따라 차량의 도어를 개폐한다.The mobile device 2 is a configuration in which an application for managing a command related to opening and closing a door is carried by a user and mounted thereon. The mobile device 2 and the opening/closing module 1 may be connected through wireless communication. Accordingly, the mobile device 2 transmits a command related to opening and closing the door to the opening/closing module 1 through wireless communication, and the opening/closing module 1 opens and closes the door of the vehicle according to the command.
하지만, 무선통신만을 이용하여 도어를 개폐하는 경우 중계 해킹 공격(RSA, relay station attack)에 취약한 문제점이 있다. 이를 해결하기 위해, 본 발명에서는 음파를 이용하여 모바일 장치(2)에서 차량과 모바일 장치(2)간 거리를 측정하고, 측정된 거리에 근거하여 도어의 개폐를 제어한다. 블루투스 또는 와이파이는 수 GHz의 높은 주파수를 이용하는 반면, 음파는 그 1/1,000,000 정도인 수 kHz의 주파수를 이용하므로, 음파를 사용하면 운전자의 모바일 장치(2)의 위치를 블루투스나 와이파이 신호보다 더 정확하게 측정할 수 있다.However, when the door is opened and closed using only wireless communication, there is a problem in that it is vulnerable to a relay station attack (RSA). To solve this, in the present invention, the mobile device 2 measures the distance between the vehicle and the mobile device 2 using sound waves, and controls opening and closing of the door based on the measured distance. Bluetooth or Wi-Fi uses a high frequency of several GHz, whereas sound waves use a frequency of several kHz, which is about 1/1,000,000 of that. can be measured
상세하게, 상기 개폐 모듈(1)은 음파 신호를 발생시키며, 상기 모바일 장치(2)는 상기 음파 신호를 수신하고, 음파 신호의 강도, 즉 데시벨에 근거하여 모바일 장치(2)와 차량간 거리를 계산하며, 계산된 거리에 근거하여 개폐 모듈(1)에 도어의 개폐를 제어하는 명령을 전송한다. 이에 따라 사용자가 모바일 장치(2)를 소지한 채 차량에 가까이 접근해야만 도어 개폐가 제어되며, RSA에 의한 차량 절도가 방지된다.In detail, the opening/closing module 1 generates a sound wave signal, and the mobile device 2 receives the sound wave signal and determines the distance between the mobile device 2 and the vehicle based on the strength of the sound wave signal, that is, decibels. and transmits a command for controlling the opening and closing of the door to the opening/closing module 1 based on the calculated distance. Accordingly, door opening and closing is controlled only when the user approaches the vehicle while carrying the mobile device 2 , and vehicle theft by RSA is prevented.
본 발명의 일 실시예에 따라, 개폐 모듈(1)은 통신 모듈(11) 및 스피커 모듈(12)을 포함할 수 있다.According to an embodiment of the present invention, the opening/closing module 1 may include a communication module 11 and a speaker module 12 .
통신 모듈(11)은 상기 모바일 장치(2)와 무선통신을 통해 연결되는 구성이다. 바람직하게, 상기 무선통신은 블루투스, 와이파이와 같은 일반적으로 사용되는 형식의 무선통신일 수 있다. 보다 바람직하게, 저에너지 블루투스(BLE)일 수 있다. 이와 같은 무선통신을 사용함으로써 스마트폰과 같은 기 보급된 일반적인 모바일 장치(2)에서 본 발명이 쉽게 구현될 수 있다. 또한, 이러한 무선통신은 자체적으로 연결 한계 거리가 수 미터 내지 10미터 내외이므로, 기본적으로 거리 범위가 제한되는 효과가 있다.The communication module 11 is configured to be connected to the mobile device 2 through wireless communication. Preferably, the wireless communication may be a commonly used type of wireless communication such as Bluetooth or Wi-Fi. More preferably, it may be Bluetooth Low Energy (BLE). By using such wireless communication, the present invention can be easily implemented in a general mobile device 2 such as a smart phone. In addition, since such wireless communication itself has a connection limit distance of several meters to about 10 meters, there is an effect that the distance range is basically limited.
스피커 모듈(12)은 음파 신호를 발생시키기 위한 구성이다. 바람직하게, 스피커 모듈(12)은 17kHz 이상의 비가청주파수의 음파 신호를 발생시키기 위한 스피커일 수 있다.The speaker module 12 is a component for generating a sound wave signal. Preferably, the speaker module 12 may be a speaker for generating a sound wave signal of an inaudible frequency of 17 kHz or higher.
모바일 장치(2)는 상기 음파 신호를 수신하여서 운전자의 모바일 장치(2)와 차량 간의 거리를 계산(calculation)한다. 이를 위해 모바일 장치(2)는 음파 수신부(21), 통신부(22) 및 제어부(23)를 포함할 수 있다.The mobile device 2 receives the sound wave signal and calculates the distance between the driver's mobile device 2 and the vehicle. To this end, the mobile device 2 may include a sound wave receiving unit 21 , a communication unit 22 , and a control unit 23 .
음파 수신부(21)는 상기 음파 신호를 수신하는 구성이다. 일반적인 스마트폰에 포함된 마이크가 이에 해당된다. 바람직하게, 음파 수신부(21)는 적어도 20kHz 주파수의 음파를 수신할 수 있는 음파 수신부(21)로 구비됨이 바람직하다.The sound wave receiver 21 is configured to receive the sound wave signal. This includes the microphone included in a typical smartphone. Preferably, the sound wave receiving unit 21 is provided as a sound wave receiving unit 21 capable of receiving at least a sound wave of a frequency of 20 kHz.
통신부(22)는 상기 통신 모듈(11)과 무선통신을 통해 연결되는 구성이다. 바람직하게, 블루투스 또는 와이파이 모듈일 수 있다. 보다 바람직하게, 저에너지 블루투스 모듈일 수 있다.The communication unit 22 is configured to be connected to the communication module 11 through wireless communication. Preferably, it may be a Bluetooth or Wi-Fi module. More preferably, it may be a low energy Bluetooth module.
제어부(23)는 도어의 개폐와 관련된 명령을 처리하는 구성이다. 일 실시예에 따라, 제어부(23)는 스마트폰에 장착되어 있는 프로세서(processor)일 수 있다.The control unit 23 is configured to process a command related to opening/closing of a door. According to an embodiment, the control unit 23 may be a processor mounted on a smartphone.
도 2는 본 발명의 일 실시예에 따른 개폐 모듈(1)이 차량에 장착된 것을 나타낸 것이다. 바람직한 실시예로서, 개폐 모듈(1)은 차량 내부의 중앙에 배치될 수 있다. 보다 바람직하게 차량 내부의 중앙 및 운전석 주변에 설치될 수 있다. 개폐 모듈(1)이 차량 내부의 중앙에 가까울 수록 개폐 모듈(1)로부터 차량 외벽까지의 거리가 최대가 되므로, 모바일 장치(2)의 위치가 차량 내부 또는 차량 외부인지 인식하는 것이 용이해진다. 또한, 운전석 주변에 설치되는 경우 운전자가 개폐 모듈(1)을 용이하게 조작할 수 있다.2 illustrates that the opening/closing module 1 according to an embodiment of the present invention is mounted on a vehicle. As a preferred embodiment, the opening/closing module 1 may be disposed in the center of the inside of the vehicle. More preferably, it may be installed in the center of the vehicle and around the driver's seat. The closer the opening/closing module 1 is to the center of the vehicle interior, the greater the distance from the opening/closing module 1 to the vehicle exterior wall, so that it is easier to recognize whether the location of the mobile device 2 is inside the vehicle or outside the vehicle. In addition, when installed around the driver's seat, the driver can easily operate the opening/closing module 1 .
도 3은 본 발명에 따라서 개폐 모듈(1)에서 송출된 음파를 이용하여 차량과 모바일 장치(2) 사이의 거리를 계산하는 방법의 일 예를 나타낸다.3 shows an example of a method of calculating the distance between the vehicle and the mobile device 2 using the sound wave transmitted from the opening/closing module 1 according to the present invention.
도 3을 참조하면, 운전자의 모바일 장치(2)에서 스마트 키 어플리케이션(application, 이하 앱(APP)이라 함)이 실행된다(S200). 여기서 모바일 장치(2)는 일 예로 스마트폰이며, 스마트 워치, 태블릿 등 음파 신호를 수신하여 프로세서(processor)에서 음파 신호를 처리할 수 있는 장치는 모두 가능하다.Referring to FIG. 3 , a smart key application (hereinafter referred to as an APP) is executed in the driver's mobile device 2 ( S200 ). Here, the mobile device 2 is, for example, a smartphone, and any device capable of receiving a sound wave signal and processing the sound wave signal in a processor, such as a smart watch or a tablet, is possible.
모바일 장치(2)에서 실행된 앱은 백그라운드(background)에서 동작해도 무관하며 차량과 무선통신 연결을 위하여 핑(ping)과 같은 행위를 주기적 또는 비주기적으로 수행한다.The app executed in the mobile device 2 may operate in the background, and periodically or non-periodically performs an action such as ping for wireless communication connection with the vehicle.
모바일 장치(2)와 개폐 모듈(1) 간의 거리가 소정의 거리 이내(예, 25m)가 되거나, 운전자의 모바일 장치(2)와 개폐 모듈(1)이 블루투스 연결이 되면, 운전자의 모바일 장치(2)에서 전달한 무선통신 연결 요청을 개폐 모듈(1)로 전달(S205)하고 통신 모듈(11)에서 이 요청을 수신한다.When the distance between the mobile device 2 and the opening/closing module 1 is within a predetermined distance (eg, 25m) or the driver's mobile device 2 and the opening/closing module 1 are connected via Bluetooth, the driver's mobile device ( The wireless communication connection request transmitted in 2) is transferred to the opening/closing module 1 (S205), and the communication module 11 receives this request.
개폐 모듈(1)은 이에 대한 응답을 모바일 장치(2)로 전달한다(S210). 이를 통해서 모바일 장치(2)와 개폐 모듈(1) 간에 무선통신 연결이 설립된다(S215).The opening/closing module 1 transmits a response thereto to the mobile device 2 (S210). Through this, a wireless communication connection is established between the mobile device 2 and the opening/closing module 1 (S215).
모바일 장치(2)는 마이크를 켜는 동작을 수행한다(Mic ON, S220). 이는 일 예시일 뿐이며, 차량에서 전달되는 음파 신호를 수신할 수 있는 다른 종류의 센서를 켜는 동작을 수행할 수도 있다. 마이크는 음파 신호를 수신하는 수신기의 가장 일반적인 예이므로, 이하에서 마이크를 기초로 본원 발명을 설명한다.The mobile device 2 turns on the microphone (Mic ON, S220). This is only an example, and an operation of turning on another type of sensor capable of receiving a sound wave signal transmitted from a vehicle may be performed. Since the microphone is the most common example of a receiver for receiving a sound wave signal, the present invention will be described below based on the microphone.
단계 S215에서 무선통신 연결이 설립되면, 개폐 모듈(1)은 스피커 모듈(12)을 켜는 동작을 수행한다(Speaker On, S222). 이 스피커는 음파 신호를 송신하는 장치의 일 예이며, 초음파 센서일 수도 있으며, 이하에서 스피커로 설명함은 음파 신호를 송신하는 장치에 모두 적용될 수 있다.When the wireless communication connection is established in step S215, the opening/closing module 1 performs an operation to turn on the speaker module 12 (Speaker On, S222). The speaker is an example of a device for transmitting a sound wave signal, and may be an ultrasonic sensor, and the description of the speaker below may be applied to any device for transmitting a sound wave signal.
스피커 모듈(12)에서 모바일 장치(2)의 음파 수신부(21)로 음파를 전달한다(S230). 일 예로, 스피커 모듈(12)은 복수로 구비되고 서로 다른 주파수의 음파를 송출한다.A sound wave is transmitted from the speaker module 12 to the sound wave receiver 21 of the mobile device 2 (S230). For example, the speaker module 12 is provided in plurality and transmits sound waves of different frequencies.
이때, 스피커 모듈(12)에서 송출하는 음파 신호는 스테레오 신호일 수 있으며(예, 2.1채널 또는 5.1 채널 등), 2 ~ 24,000Hz 범위의 주파수를 갖는 신호일 수 있다. 보다 바람직하게는, 19~21kHz 대역의 신호일 수 있으며, 보통 사람들이 잘 듣지 못하므로 비가청 음파라고도 한다.In this case, the sound wave signal transmitted from the speaker module 12 may be a stereo signal (eg, 2.1 channel or 5.1 channel, etc.), and may be a signal having a frequency in the range of 2 to 24,000 Hz. More preferably, it may be a signal in a band of 19 to 21 kHz, and is also referred to as an inaudible sound wave because people do not hear it well.
제어부(23)는 음파 신호를 수신하여서 모바일 장치(2)와 차량 간의 거리를 계산(calculation)한다(S235). 모바일 장치(2)가 차량의 내부에 위치한 때에는 수신된 음파 신호의 크기 상대적으로 크며, 차량의 외부에 위치한 때에는 수신된 음파 신호의 크기가 상대적으로 작고, 거리가 멀어질수록 음파 신호의 크기는 감소한다. 따라서 모바일 장치(2)와 차량 간의 거리가 기준 거리일 때의(예를 들어 2m 이내) 수신되는 음파 신호의 강도를 소정의 기준 값으로 정하여, 수신된 음파 신호의 강도가 기준 값 이상인 경우 모바일 장치(2)가 차량으로부터 기준 거리 이내에 진입한 것으로 판단할 수 있다. 이때, 음파 신호는 상관관계(correlation) 계산을 통해 노이즈로부터 구별이 가능하다.The controller 23 receives the sound wave signal and calculates the distance between the mobile device 2 and the vehicle ( S235 ). When the mobile device 2 is located inside the vehicle, the size of the received sound wave signal is relatively large, and when the mobile device 2 is located outside the vehicle, the size of the received sound wave signal is relatively small, and as the distance increases, the size of the sound wave signal decreases. do. Therefore, when the distance between the mobile device 2 and the vehicle is the reference distance (for example, within 2 m), the strength of the received sound wave signal is set as a predetermined reference value, and when the strength of the received sound wave signal is equal to or greater than the reference value, the mobile device (2) can be determined to have entered within the reference distance from the vehicle. In this case, the sound wave signal can be distinguished from noise through correlation calculation.
또한 복수의 스피커 모듈(12)이 구비되는 경우 ToA(Time of Arrival) 또는 TDoA(Time Difference of Arrival)을 기초로 헤론의 공식을 이용한 삼각 측량을 통해 계산될 수 있다. 여기서, 헤론의 공식은 삼각형의 세 변의 길이를 통해 넓이를 구하는 공식이다.In addition, when a plurality of speaker modules 12 are provided, it may be calculated through triangulation using Heron's formula based on Time of Arrival (ToA) or Time Difference of Arrival (TDoA). Here, Heron's formula is a formula to find the area through the lengths of three sides of a triangle.
이어서, 상기 계산한 모바일 장치(2)와 차량 간의 거리를 기초로, 차량과 모바일 장치(2) 사이의 거리가 소정의 거리값 이내(예, 2m)가 되면 모바일 장치(2)는 개폐 모듈(1)로 제어 허락신호(permission signal)를 전달한다(S240).Then, based on the calculated distance between the mobile device 2 and the vehicle, when the distance between the vehicle and the mobile device 2 is within a predetermined distance value (eg, 2m), the mobile device 2 opens the opening/closing module ( 1) transmits a control permission signal (S240).
모바일 장치(2)에서 직접 제어 허락 신호를 전송하기 때문에 제어 허락 신호를 해킹하지 않는 한 모바일 장치(2)의 위치를 위조할 수 없으므로 해킹을 막을 수 있다. 제어 허락 신호는 해킹을 방어할 수 있도록 암호화되어 전달될 수 있다.Since the mobile device 2 directly transmits the control permission signal, the location of the mobile device 2 cannot be forged unless the control permission signal is hacked, thereby preventing hacking. The control permission signal may be transmitted encrypted to prevent hacking.
다른 예로, 제어 허락 신호가 해킹되거나 위변조되는 것을 방지할 수 있도록 도어 캐처에 운전자가 직접 입력(예, 터치)을 가하여야 차량이 개폐되도록 설정될 수도 있다(도면 미표시).As another example, in order to prevent the control permission signal from being hacked or forged, the vehicle may be set to open and close only when the driver directly applies an input (eg, a touch) to the door catcher (not shown).
개폐 모듈(1)은 제어 허락 신호를 수신하면 차량의 도어 또는 트렁크의 잠금을 해제하거나, 차량의 시동이 걸릴 수 있도록 준비한다(S245). 일 예로, 차량의 도어(또는 트렁크)를 개방한 이후에 운전자가 탑승하여 차량 내 정해진 구역에서 운전자의 모바일 장치(2)가 차량 내부에 위치하는 것으로 판단되는 경우 차량의 시동이 제어된다.When the opening/closing module 1 receives the control permission signal, it unlocks the door or trunk of the vehicle, or prepares to start the vehicle (S245). For example, when it is determined that the driver's mobile device 2 is located inside the vehicle in a predetermined area within the vehicle as the driver gets on after opening the door (or trunk) of the vehicle, the vehicle's starting is controlled.
도 4는 본 발명의 일 실시예에 따른 무선통신 연결 거리(r1) 및 허락 신호를 송신하는 거리(r2)를 나타낸 것이다. 도 4에 도시된 바와 같이, 모바일 장치(2)가 무선통신 연결 거리(r1) 내에 진입하여 개폐 모듈(1)과 무선통신을 통해 연결된 후, 음파 신호를 통한 거리 측정에 근거하여 허락 신호를 송신하는 거리(r2)에 진입한 것으로 판단되면 차량의 도어 잠김을 해제하게 된다. 반대로, 모바일 장치(2)가 멀어지는 경우 도어 잠김을 활성화시켜 차량 도어 개폐가 간편하게 제어된다.4 shows a wireless communication connection distance (r1) and a distance (r2) for transmitting a permission signal according to an embodiment of the present invention. As shown in FIG. 4 , after the mobile device 2 enters within the wireless communication connection distance r1 and is connected to the opening/closing module 1 through wireless communication, a permission signal is transmitted based on the distance measurement through the sound wave signal. When it is determined that the vehicle has entered the distance r2, the door lock of the vehicle is released. Conversely, when the mobile device 2 moves away, opening and closing of the vehicle door is easily controlled by activating the door lock.
본 발명에 따른 시스템의 가장 큰 장점은 사용자가 스마트폰을 제외한 별다른 모듈을 소지할 필요가 없다는 점이다. 차량에서 발생되는 음파를 스마트폰과 같은 모바일 장치(2)에 기본적으로 내장되어 있는 마이크와 블루투스 모듈로 분석하기 때문에 스마트키와 같은 별도의 모듈이 필요치 않다.The biggest advantage of the system according to the present invention is that the user does not need to possess any other module except for the smart phone. Since the sound wave generated by the vehicle is analyzed with the microphone and Bluetooth module that are basically built-in to the mobile device 2 such as a smartphone, a separate module such as a smart key is not required.
또한 자동차에 부착하는 모듈의 경우도 기본적으로 후방 감지를 위해 차량에 부착되어 있는 주차 보조 센서(PAS)를 사용하거나, 스마트 주차 보조 시스템(SPAS)이 적용된 차량의 경우, 해당 기능을 위해 기부착된 피에조 센서를 스피커로서 활용할 수 있다.In addition, in the case of a module attached to a car, the parking assist sensor (PAS) attached to the vehicle is basically used for rear detection, or in the case of a vehicle to which the smart parking assist system (SPAS) is applied, a pre-mounted system for the corresponding function is used. A piezo sensor can be used as a speaker.
본 발명에 따르면 일반 차량 외에도 렌터카 차량이나 차량 공유 업체와 같이 다량의 차량에 설치가 필요한 경우에도 간단하게 적용 가능하다는 장점이 있다. 본 발명에 따른 개폐 모듈(1)을 차량의 USB 혹은 시거잭을 통해 운용하게 되면 설치의 부담을 덜 수 있기 때문에 금액 및 시간적인 소모를 방지할 수 있다. 또한 시스템은 스마트폰을 매개로 사용하기 때문에 사용자가 직접 업체를 방문하여 키를 수령하지 않아도 앱을 통해 차량에 대한 소유권 및 제어권을 획득할 수 있다. 즉 시스템에서 활용 가능한 기능에 제한이 생기는 대신 설치로 인한 금전적, 시간적 이득을 취할 수 있게 된다.According to the present invention, there is an advantage that it can be simply applied to a case where installation is required in a large number of vehicles such as a rental car or a car sharing company in addition to a general vehicle. When the opening/closing module 1 according to the present invention is operated through the vehicle's USB or cigar jack, it is possible to reduce the burden of installation, thereby preventing the consumption of money and time. In addition, since the system uses a smartphone as a medium, the user can acquire ownership and control of the vehicle through the app without having to personally visit the company to receive the key. In other words, instead of limiting the functions that can be used in the system, money and time benefits can be obtained from the installation.
상기한 본 발명의 바람직한 실시 예는 예시의 목적으로 개시된 것이고, 본 발명에 대해 통상의 지식을 가진 당업자라면 본 발명의 사상과 범위 안에서 다양한 수정, 변경 및 부가가 가능할 것이며, 이러한 수정, 변경 및 부가는 상기의 특허청구 범위에 속하는 것으로 보아야 할 것이다. The above-described preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art with ordinary knowledge for the present invention will be able to make various modifications, changes and additions within the spirit and scope of the present invention. should be considered to be within the scope of the above claims.
본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서, 여러 가지 치환, 변형 및 변경이 가능하므로, 본 발명은 전술한 실시 예 및 첨부된 도면에 의해 한정되는 것이 아니다.Those of ordinary skill in the art to which the present invention pertains, within the scope of not departing from the technical spirit of the present invention, various substitutions, modifications and changes are possible, so the present invention is described in the above-described embodiments and the accompanying drawings. not limited by
상술한 예시적인 시스템에서, 방법들은 일련의 단계 또는 블록으로써 순서도를 기초로 설명되고 있지만, 본 발명은 단계들의 순서에 한정되는 것은 아니며, 어떤 단계는 상술한 바와 다른 단계와 다른 순서로 또는 동시에 발생할 수 있다. 또한, 당업자라면 순서도에 나타낸 단계들이 배타적이지 않고, 다른 단계가 포함되거나 순서도의 하나 또는 그 이상의 단계가 본 발명의 범위에 영향을 미치지 않고 삭제될 수 있음을 이해할 수 있을 것이다.In the exemplary system described above, the methods are described on the basis of a flowchart as a series of steps or blocks, however, the present invention is not limited to the order of steps, and some steps may occur in a different order or concurrent with other steps as described above. can In addition, those skilled in the art will understand that the steps shown in the flowchart are not exhaustive and that other steps may be included or that one or more steps in the flowchart may be deleted without affecting the scope of the present invention.
본 발명에 따르면 운전자가 별도의 키폽을 휴대하지 않고 차량의 도어를 개폐할 수 있다.According to the present invention, the driver can open and close the door of the vehicle without carrying a separate keypop.
또한 본 발명에 따르면 중계 해킹 공격(RSA)와 같은 차량 절도가 방지된다.Also, according to the present invention, vehicle theft such as relay hacking attack (RSA) is prevented.

Claims (8)

  1. 차량의 도어의 개폐를 제어하는 차량 개폐 시스템에 있어서,In the vehicle opening and closing system for controlling the opening and closing of a vehicle door,
    차량에 설치되어 차량의 도어의 개폐를 제어하는 개폐 모듈; 및an opening/closing module installed in a vehicle to control opening/closing of a door of the vehicle; and
    상기 개폐 모듈과 무선통신을 통해 연결되고, 도어의 개폐와 관련된 명령을 관리하는 어플리케이션이 탑재된 모바일 장치;를 포함하고,A mobile device connected to the opening/closing module through wireless communication and equipped with an application for managing a command related to opening/closing a door; includes;
    상기 개폐 모듈은 음파 신호를 발생하며,The opening/closing module generates a sound wave signal,
    상기 모바일 장치는 상기 음파 신호를 수신하고, 상기 음파 신호의 강도에 근거하여 상기 모바일 장치와 상기 차량간 거리를 계산하며,the mobile device receives the sound wave signal, and calculates a distance between the mobile device and the vehicle based on the strength of the sound wave signal;
    상기 모바일 장치는 상기 계산된 거리에 근거하여 상기 개폐 모듈에 차량의 도어의 개폐를 제어하는 명령을 전송하는 것을 특징으로 하는 차량 개폐 시스템.The mobile device transmits a command for controlling the opening and closing of the vehicle door to the opening/closing module based on the calculated distance.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 개폐 모듈은,The opening/closing module is
    상기 모바일 장치와 상기 무선통신을 통해 연결되는 통신 모듈; 및a communication module connected to the mobile device through the wireless communication; and
    음파 신호를 발생시키는 스피커 모듈;을 포함하고,A speaker module that generates a sound wave signal; includes,
    상기 모바일 장치는,The mobile device is
    상기 스피커 모듈에서 발생된 상기 음파 신호를 수신하고, 상기 음파 신호의 강도에 근거하여, 상기 모바일 장치가 상기 차량으로부터 미리 설정된 기준 거리 이내에 진입했는지 여부를 판단하는 것을 특징으로 하는 차량 개폐 시스템.The vehicle opening and closing system, characterized in that receiving the sound wave signal generated by the speaker module, and determining whether the mobile device enters within a preset reference distance from the vehicle, based on the strength of the sound wave signal.
  3. 제 2 항에 있어서,3. The method of claim 2,
    상기 모바일 장치는,The mobile device is
    상기 음파 신호를 수신할 수 있는 음파 수신부;a sound wave receiver capable of receiving the sound wave signal;
    상기 개폐 모듈과 무선통신으로 연결되는 통신부; 및a communication unit connected to the opening/closing module through wireless communication; and
    상기 도어의 개폐와 관련된 명령을 처리하는 제어부;를 포함하는 것을 특징으로 하는 차량 개폐 시스템.and a control unit that processes a command related to opening and closing of the door.
  4. 제 3 항에 있어서,4. The method of claim 3,
    상기 제어부는,The control unit is
    상기 음파 수신부에 수신된 상기 음파 신호의 강도에 근거하여, 상기 모바일 장치가 상기 차량으로부터 미리 설정된 기준 거리 이내에 진입했는지 여부를 판단하는 것을 특징으로 하는 차량 개폐 시스템.The vehicle opening and closing system, characterized in that it is determined whether the mobile device enters within a preset reference distance from the vehicle, based on the strength of the sound wave signal received by the sound wave receiver.
  5. 제 4 항에 있어서,5. The method of claim 4,
    상기 제어부는,The control unit is
    상기 모바일 장치가 상기 차량으로부터 미리 설정된 기준 거리 이내에 진입한 것으로 판단되면, 상기 통신부를 통해 상기 개폐 모듈로 도어 잠김을 해제하는 명령을 전송하는 것을 특징으로 하는 차량 개폐 시스템.When it is determined that the mobile device enters within a preset reference distance from the vehicle, a command for unlocking the door is transmitted to the opening/closing module through the communication unit.
  6. 제 2 항에 있어서,3. The method of claim 2,
    상기 개폐 모듈은,The opening/closing module is
    상기 무선통신이 연결되지 않은 상태에서는 상기 음파 신호를 발생시키지 않고 대기하며,In the state in which the wireless communication is not connected, it waits without generating the sound wave signal,
    상기 무선통신의 연결되면 상기 음파 신호를 발생시키는 것을 특징으로 하는 차량 개폐 시스템.Vehicle opening and closing system, characterized in that for generating the sound wave signal when the wireless communication is connected.
  7. 제 1 항 내지 제 6 항 중 어느 한 항에 있어서,7. The method according to any one of claims 1 to 6,
    상기 개폐 모듈은,The opening/closing module is
    상기 차량의 기본으로 제공되는 키폽(keyfob)에 내장되어 있던 보드가 장착되고, 상기 보드에 내장된 도어 개폐 스위치를 전기적으로 조작함으로써 도어를 개폐하는 것을 특징으로 하는 차량 개폐 시스템.A vehicle opening/closing system, characterized in that a board embedded in a keyfob provided as a basis of the vehicle is mounted, and the door is opened and closed by electrically operating a door opening/closing switch built into the board.
  8. 제 2 항 내지 제 6 항 중 어느 한 항에 있어서,7. The method according to any one of claims 2 to 6,
    상기 음파 신호는 19kHz 내지 21kHz의 비가청주파수 음파 신호인 것을 특징으로 하는 차량 개폐 시스템.The sound wave signal is a vehicle opening and closing system, characterized in that the inaudible frequency sound wave signal of 19 kHz to 21 kHz.
PCT/KR2020/017894 2018-12-07 2020-12-09 Vehicle opening/closing system using sound wave communication, mounted in form of module near driver's seat WO2021118214A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20180156539 2018-12-07
KR10-2019-0163196 2019-12-09
KR1020190163196A KR102106288B1 (en) 2018-12-07 2019-12-09 System for opening and closing vehicle using soundwave communication based on modules arranged around driver-seat

Publications (1)

Publication Number Publication Date
WO2021118214A1 true WO2021118214A1 (en) 2021-06-17

Family

ID=70732848

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2020/017894 WO2021118214A1 (en) 2018-12-07 2020-12-09 Vehicle opening/closing system using sound wave communication, mounted in form of module near driver's seat

Country Status (2)

Country Link
KR (1) KR102106288B1 (en)
WO (1) WO2021118214A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101289027B1 (en) * 2013-04-02 2013-07-23 나노소프트(주) Sonic wave communication system for wireless and method for the same
JP2015202750A (en) * 2014-04-11 2015-11-16 株式会社東海理化電機製作所 Communication area adjustment device and method
JP2015223981A (en) * 2014-05-29 2015-12-14 トヨタ自動車株式会社 Vehicular authentication system
KR101827517B1 (en) * 2017-08-21 2018-03-22 빌드원 주식회사 Door lock Controller and control method thereof
KR20180105822A (en) * 2017-03-16 2018-10-01 삼성전자주식회사 Door Lock Device and Controlling Method Thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016204838B4 (en) 2016-03-23 2020-01-23 Continental Automotive Gmbh Keyless entry system for a motor vehicle and method for locating a signal generator of the access system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101289027B1 (en) * 2013-04-02 2013-07-23 나노소프트(주) Sonic wave communication system for wireless and method for the same
JP2015202750A (en) * 2014-04-11 2015-11-16 株式会社東海理化電機製作所 Communication area adjustment device and method
JP2015223981A (en) * 2014-05-29 2015-12-14 トヨタ自動車株式会社 Vehicular authentication system
KR20180105822A (en) * 2017-03-16 2018-10-01 삼성전자주식회사 Door Lock Device and Controlling Method Thereof
KR101827517B1 (en) * 2017-08-21 2018-03-22 빌드원 주식회사 Door lock Controller and control method thereof

Also Published As

Publication number Publication date
KR102106288B1 (en) 2020-05-04

Similar Documents

Publication Publication Date Title
WO2019074135A1 (en) Method and device for smart control of vehicle while defending against rsa by using mobile device
US8005490B2 (en) In-vehicle apparatus with radio transmission restricting function and radio transmission restricting system
KR102659794B1 (en) Motor vehicle, electronic vehicle radio key and system for passive access to motor vehicle, and method therefor
KR101667990B1 (en) Method and system for controlling a car using smart phone
KR102110579B1 (en) Device for hands-free of vehicle and method for controlling the connection with mobile phone
US10688965B2 (en) Apparatus for determining the position of a mobile access device on the vehicle
KR20140090728A (en) Smart key system for the reduction of the battery consumption and method thereof
KR102146889B1 (en) Method and device for calculating the distance or angular coordinates between the vehicle and the smartphone using the arrival time of sound waves and triangulation
JP2018165450A (en) Vehicle control system and vehicle control device
JP2015093556A (en) On-vehicle communication system
WO2021118214A1 (en) Vehicle opening/closing system using sound wave communication, mounted in form of module near driver's seat
KR20210035011A (en) System and method for connected vehicle control
KR20190128364A (en) Smart control method and device of a vehicle defending RSA using a mobile device
KR20160044119A (en) Apparatus for controlling smart key system
WO2015174736A1 (en) Smart key device for vehicle, and wireless charging device
WO2021118215A1 (en) Module for using, in sound wave communication, parking assist sensor (pas) or smart parking assist system (spas)
JP5753066B2 (en) In-vehicle charger
JP2020173158A (en) Terminal position detection system and terminal position detection method
KR102146891B1 (en) A method and apparatus for calculating the distance or angular coordinates between the vehicle and the smartphone using the arrival time of sound waves and triangular positioning in consideration of the position of the speaker is not a straight line
TWI597193B (en) Control system, control apparatus, and mobile device for vehicle
JP2007048298A (en) Anomaly occurrence detection method
KR101640682B1 (en) Wireless charging apparatus for preventing loss of the mobile communication terminal and method thereof
KR20240000733A (en) Apparatus for controlling vehicle and method thereof
KR20180070928A (en) Car sharing method using IoT
KR20200118754A (en) Smart control system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20900029

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20900029

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 20900029

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 14/12/2022)

122 Ep: pct application non-entry in european phase

Ref document number: 20900029

Country of ref document: EP

Kind code of ref document: A1