Method and device for issuing traffic information of radio data broadcast system

Abstract

The invention discloses a method and a device for issuing traffic information of a radio data broadcast system and relates to the field of navigation. The method comprises the following steps: considering each estimation index of road condition in balance; calculating an important level weight value of traffic information of each road of which the traffic state is crowded or amble; ordering the traffic information of each road according to the important level weight value; and issuing the traffic information through an RDS (radio data broadcast system) issuing channel according to an order of the important level weight values from high to low. The device comprises a weight value calculation module and an order issuing module. According to the embodiment of the invention, each estimation index of the road condition can be comprehensively considered in balance, so that the quantity of effective data in the issued data of the RDS is improved, namely the validity of the issued data of the RDS is improved, and the issued information is enabled to be more accurate and reasonable.

Description

technical field [0001] The invention relates to the field of navigation, in particular to a method and device for issuing traffic information in a wireless data broadcasting system. Background technique [0002] RDS (Radios Data System, Wireless Data Broadcasting System) is a European specification for data broadcasting systems formulated by the European Broadcasting Union (EBU) in 1984. The main feature of RDS urban traffic information broadcasting is to use existing FM broadcasting resources to broadcast This is achieved by inserting digital codes into the signal. When the radio detects and demodulates these digital codes, it can provide the corresponding function. [0003] TMC (Traffic Message Channel, Traffic Information Channel) is a digital coding system. TMC can generate a continuous flow of traffic information, such as traffic jams or accidents, and can report the location, time and result of the accident. The information includes traffic conditions within a certai...

AI Technical Summary

Problems solved by technology

[0006] During the research and practice of the prior art, the inventor found the following problems in the prior art: in the prior art, when using the RDS release channel to release TMC data, more consideration should be given to sorting the published data according to the importance level Road grade, that is to say, usually try to release the traffic information with high road grade, and the possibility of releasing traffic information with low road grade is very small

In this way, some road information with very serious congestion may not be released due to a slightly lower road grade, but the actual released information may not be very serious, but only because the road grade is high, so that the importance level of the RDS release data is high The amount of data is relatively small, that is, the effectiveness of the TMC events released by the RDS release channel is poor, and the release information is not accurate and reasonable enough

Images