Abstract:
PURPOSE: The accuracy improvement method of a location correction signal and a system using a communication between vehicles are provided to extend a DGPS(Differential Global Positioning System) service coverage by transmitting and receiving a location correction signal through a communication between vehicles. CONSTITUTION: A GPS receiving unit(10) receives a GPS signal from a satellite. A V2X communication unit(20) transmits and receives a DGPS correction signal while performing communication with a roadside reference station or a vehicle within a communication available area. A sensor(30) detects a distance with other vehicle and location information within a neighboring communication available area. A multi-hop signal processing unit(60) retransmits a DGPS correction signal received from a roadside reference station or other vehicle as multi-hop information through a communication unit according to a preset control signal. [Reference numerals] (10) GPS receiving unit; (20) V2X communication unit; (30) Sensor(laser/radar/image); (40) Control unit; (50) DGSP tolerance adjustment unit; (60) Multihop signal processing unit
Abstract:
본 발명은 도로의 노면 상태 감지시스템 및 방법에 관한 것으로, 차량에 부착되어 노면 상태에 대한 측정신호를 생성하는 노면 측정센서, 노면 측정센서로부터 수신된 측정신호를 수치화하고, 수치화된 값에 의거하여 노면 상태에 대한 곡률패턴을 확인하며 확인된 곡률패턴과 기저장된 곡률패턴을 비교하여 노면 상태를 확인하는 제어부를 포함한다.
Abstract:
차량 전방의 일정영역을 감시하는 제1센서, 차량 전측방의 일정영역을 감시하는 제2센서 및 차량 측방을 감시하는 제3센서; 및 차량의 차속을 감지되는 물체와의 거리에 따라 제어하며, 일정속도 미만에서는 제1,2센서만 작동시켜 물체를 감시하고, 일정속도 이상에서는 제1,2,3센서를 작동시키되 제3센서의 물체 감지시부터 제2센서의 측정데이터 수신을 통한 거리계산을 시작하는 제어부;를 포함하는 차량의 스마트 크루즈 컨트롤 시스템 및 그 제어방법이 소개된다.
Abstract:
PURPOSE: A smart cruise control system of a vehicle, and a controlling method thereof are provided to prevent a conflict with a sudden side obstacle by improving the response rate to the sudden side obstacles. CONSTITUTION: A smart cruise control system of a vehicle comprises: a first sensor(100) watching a fixed range in front of a vehicle(120), a second sensor(200) watching a fixed range of side parts in front of the vehicle(210), a third sensor(300) watching a fixed range of side parts of the vehicle(320), and a controlling part(C) controlling the velocity of the vehicle according to the distance from the sensed objects, watching objects by operating the first and second sensors when the velocity is under a fixed value, and operating the first, second, and third sensors when the velocity of the vehicle is over a fixed value while starting to calculate the distance by receiving the measured date by the second sensor when the third sensor senses an object. A controlling method thereof comprises the steps of: checking the velocity of the vehicle, a checking stage(S100); watching objects by operating the first and second sensors when the velocity of the vehicle is under a fixed value, a low speed stage(S200); and operating the first, second, and third sensors when the velocity of the vehicle is over a fixed value, and starting to calculate the distance by receiving the measured date by the second sensor when the third sensor senses an object and a high speed stage(S300).
Abstract:
PURPOSE: A vehicle-inter relative position control method using a mobile base station and a system thereof are provided to induce the safe driving of a vehicle by automatically controlling the driving of the vehicle based on position information received from a mobile base station. CONSTITUTION: A leading vehicle(10) performs a role of a mobile station by including a function for calculating a current position based on a GPS signal. The leading vehicle includes a first GPS receiving unit(11), a position calculating unit(12), and a DGPS correction signal generating unit(13). The position calculating unit includes an inertial measurement system and an inertial navigation system. A following vehicle(20) executes position control by receiving a DGPS correction signal. The following vehicle includes a second GPS receiving unit(22), a position information correcting unit(23), and a driving control unit(24). The driving control unit controls a direction and speed of the vehicle based on the position information outputted from the position information correcting unit. [Reference numerals] (11) First GPS receiving unit; (12) Position calculating unit; (13) DGPS correction signal generating unit; (14) First V2X communicating unit; (21) Second V2X communicating unit; (22) Second GPS receiving unit; (23) DGPS-based position information correcting unit; (24) Driving control unit