Method for receiving and displaying dynamic traffic information via FM and navigation device
A traffic information and navigation device technology, applied in the field of navigation, can solve the problems of inaccurate positioning, slow processing speed of dynamic traffic road condition information, etc., and achieve the effect of speeding up
Active Publication Date: 2017-05-10
NAVINFO
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is to provide a method and a navigation device for receiving and displaying dynamic traffic information through FM, so as to solve the problem that the existing technology of providing dynamic traffic information through FM is not enough to locate the display position of traffic information on the road Accurate, technical defect of slow processing of dynamic traffic information
Method used
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[0025] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0026] Provide solutions for various cities across the country. First, compile the TMC data and road condition display data. Use the compiled compiled data in the application to provide solutions for different products and different cities, and display traffic and road condition information. on both sides of the road.
[0027] An embodiment of the present invention provides a method for receiving and displaying dynamic traffic information through FM, which is applied to a navigation device, including:
[0028] Step 101, in each cycle, read TMC data;
[0029] Step 102, analyzing the TMC data to obtain traffic road condition information;
[0030] Step 103: According to the location point record of the traffic road condition information, match the traffic...
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The embodiment of the invention provides a method for receiving and displaying dynamic traffic information via FM and a navigation apparatus. The method for receiving and displaying dynamic traffic information via FM is applied to the navigation apparatus. The method comprises the steps of: reading TMC data in each cycle; analyzing the TMC data in order to obtain traffic information; matching the traffic information with a segment corresponding to a road according to a position point record of the traffic information, and displaying the traffic information on the two sides of the road corresponding to the matched segment. User messages and system messages acquired by analyzing TMC data are used as the traffic information. The traffic information can be matched with different segments of the road because having the position point record. The traffic information is displayed at the matched segment in order to prompt drivers. Therefore, the displayed position of the traffic information on the road is accurately positioned and such a process is available in different cities.
Description
technical field [0001] The invention relates to navigation technology, in particular to a method for receiving and displaying dynamic traffic information through FM and a navigation device. Background technique [0002] In Remote Data Services-Traffic Message Channel (RDS-TMC, Remote Data Services-TrafficMessage Channel) technology, RDS is a European standard for data broadcasting systems formulated by the European Broadcasting Union (EBU). RDS-TMC utilizes existing FM broadcasting resources, Realized by inserting digital codes into the broadcast signal, only a small amount of investment can be used to build a broadcast transmitter. It is separate from the audio signal and does not interfere with reception or affect sound quality. When the radio detects and demodulates these digital codes, it can provide the corresponding functions. The FM band of the RDS radio is 87.5~108.0MHz, the interval between adjacent radio bands is at least 100kHz, and the subcarrier data is loaded...
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IPC IPC(8): G08G1/0968
CPCG08G1/091G08G1/096855
Inventor 马文
Owner NAVINFO