PC5 short-range communication roadside equipment for providing high-precision positioning service
A technology of short-range communication and roadside equipment, applied in the field of vehicle-road coordination and intelligent transportation, to achieve the effect of low-latency, high-precision positioning service and cost reduction.
Pending Publication Date: 2021-11-09
NANJING LES CYBERSECURITY & INFORMATION TECH RES INST CO LTD
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Problems solved by technology
[0004] Connect to the manufacturer's server in the form of 4G / 5G, report GNSS information to the server, and receive high-precision positioning corrected by the server. There is a large network delay. In the case of low coverage of 5G base stations, 4G communication bidirectional Latency is usually around 100ms
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[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0039] like figure 1 As shown, the present invention discloses a PC5 short-range communication roadside device that provides high-precision positioning services, including a main processing unit, a PC5 short-range communication unit, a differential positioning edge computing unit, a GNSS receiver unit, and a 5G communication unit;
[0040] The PC5 short-range communication unit communicates directly with the vehicle-mounted terminal through the PC5 antenna, receives the GNSS information sent by the vehicle-mounted terminal, and then sends the GNSS information to the main processing unit in the form of a message. The main processing unit preprocesses the GNSS message and processes it. The final GNSS longitude observation value and GNSS latitude observation value are sent to the differential positioning edge computing unit;
[0041] Th...
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The invention discloses PC5 short-range communication roadside equipment for providing high-precision positioning service, and the equipment comprises a main processing unit, a PC5 short-range communication unit, a differential positioning edge calculation unit, a GNSS receiver unit and a 5G communication unit. The PC5 short-range communication unit receives GNSS information sent by a vehicle-mounted terminal, and the GNSS information is preprocessed by the main processing unit, and then is sent to the differential positioning edge calculation unit; the differential positioning edge calculation unit combines GNSS information sent by a GNSS receiver unit of the differential positioning edge calculation unit and calibrated longitude and latitude information of the differential positioning edge calculation unit to carry out differential calculation to obtain high-precision GNSS positioning information, and then the high-precision GNSS positioning information is processed by the main processing unit and then is sent to a vehicle-mounted terminal by a PC5 short-distance communication unit; therefore, the high-precision positioning of the vehicle-mounted terminal is realized; and the 5G communication unit is connected with the main processing unit and is used for providing network services.
Description
technical field [0001] The invention relates to the fields of intelligent transportation and vehicle-road coordination, in particular to a PC5 short-range communication roadside device providing high-precision positioning services. Background technique [0002] With the rapid development of 5G communication, big data, cloud computing, artificial intelligence, and Internet of Things technologies, the Internet of Vehicles has become the main direction of a new round of global industrial competition. High-precision positioning is a key technology in the field of Internet of Vehicles. GNSS positioning information is the key information of vehicle status and the most frequent data for vehicle-road coordination V2V and V2I interactions. The key to realizing automatic driving is to ensure the accuracy and practicality of V2V and V2I application scenarios. [0003] Traditional high-precision differential positioning requires the use of separate base stations and computing platforms...
Claims
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IPC IPC(8): H04W4/40G01S19/41
CPCH04W4/40G01S19/41
Inventor 王宏善付柏杨崔建顺杜宝伟郑文超丁维昊
Owner NANJING LES CYBERSECURITY & INFORMATION TECH RES INST CO LTD