Vehicle-mounted device and signal processing method thereof
A vehicle-mounted device and signal processing technology, applied in connection management, wireless communication, receiver monitoring, etc., can solve problems such as failure to form a link, deterioration of signal received by the antenna of the vehicle-mounted device, and achieve the effect of preventing traffic jams or accidents
Active Publication Date: 2021-02-05
AIRPOINT
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Problems solved by technology
[0015] In addition, the angle between the antenna of the vehicle-mounted device and the antenna of the roadside base station changes as the vehicle travels. Therefore, the received signal of the antenna of the vehicle-mounted device may be deteriorated, resulting in incompatibility with the roadside base station (RSE) of the driving lane. Form the problem of link, and the problem of the present invention is just to solve these technical problems
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[0034] The above objects, features, and advantages will be made clearer by referring to the attached drawings and the detailed description to be described later, so those skilled in the art will be able to easily implement the technical idea of the present invention. In addition, when describing the present invention, if it is considered that the detailed description of known techniques of the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.
[0035] Furthermore, throughout the specification, when it is indicated that certain components are "connected" to other components, not only the case of "direct connection" but also the case of "electrical connection" with other elements interposed therebetween are included. In addition, when it is pointed out that certain components "include" or "have" certain constituent elements, it means that they may also "include" or "have" other constituent elements, and do not mea...
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A vehicle-mounted device for communicating with a roadside base station comprises a plurality of antennas, a selection portion, and the control portion which communicates with a first roadside base station and a second roadside base station through a selected antenna, so as to form a link. The control portion compares the intensity the first received signal acquired from the first roadside base station and the intensity of the first received signal obtained from the second roadside base station for the first time, and compares the intensity of the second received signal acquired from the firstroadside base station and the intensity of the first received signal acquired from the second roadside base station for the second time. When the first comparison result and the second comparison result are the same, the control portion determines a roadside base station with strong received signal intensity in the first roadside base station and the second roadside base station as a host roadside base station. The control unit forms a link by sending a vehicle service table packet to the determined host roadside base station and receiving a response signal.
Description
technical field [0001] The present invention relates to an on-board device (OBE: On-Board Equipment) that forms a link with a roadside base station (RSE: Road-Side Equipment) in the environment of an electronic toll collection system (ETCS: Electronic Toll Collection System) serving multiple lanes and Its signal processing method, in more detail, relates to a method of controlling the inclination of an on-board equipment (OBE) antenna according to the moving speed of the vehicle when the vehicle passes through a toll booth serving multiple lanes to communicate with a roadside base station of the driving lane On-board equipment (OBE) and signal processing method thereof. Background technique [0002] The Electronic Toll Collection System (ETCS) is a system that can electronically collect vehicle tolls even when the vehicle enters and exits the toll road without stopping. A system that collects tolls from vehicles by communicating between roadside base stations (RSE) on tollb...
Claims
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IPC IPC(8): H04B17/29H04B17/318H04W76/10G07B15/06
CPCG07B15/063H04B17/29H04B17/318
Inventor 白承浚崔重汉
Owner AIRPOINT