Real-time vehicle navigation method based on wireless data network

Abstract

The invention discloses a real-time vehicle navigation method based on a wireless data network. In the method, (1) destination information is input into a vehicle-mounted end by a user, positioning information is acquired by a GPS (Global Position System) positioning module and sent to the vehicle-mounted end, and the positioning information, the destination information and a vehicle identification code are sent to a server end through the wireless network by the vehicle-mounted end; (2) the sever end receives the information sent by the vehicle-mounted end, respectively extracts the positioning information, the destination information and the identification code information, works out a navigation path according to GIS (Geographic Information System) data, a digital map and traffic condition information, and marks a vehicle position on the path in real time and finally stores the vehicle position into a database at the server end; and (3) the positioning information, the map and the path information of the vehicle can be checked from a screen at the vehicle-mounted end through web access or use of special software by the vehicle-mounted end and automatic identification by the server end, thereby the real-time navigation of the vehicle can be realized. The invention can acquire real-time traffic conditions, can update GIS and a digital map at real time, thereby realizing real-time navigation and improving vehicle running efficiency.

Description

technical field [0001] The invention belongs to the field of information technology, and relates to vehicle navigation, in particular to a vehicle navigation method based on a wireless data network. Background technique [0002] In recent years, the technology of car navigation has developed very rapidly, and it is very convenient to obtain relevant traffic information. GPS information marks the location of the vehicle on the map. By inputting the destination address, the terminal automatically finds a route on the map. The disadvantages of this type of product mainly include two aspects. First, the map needs to be updated frequently. Generally, the map update of this type of product The frequency is once every six months or even once a year. Due to the rapid development of the city, this update speed can no longer keep up with the pace of changes in urban road construction. The use of outdated maps will seriously affect the accuracy of navigation; secondly, the real-time ro...

AI Technical Summary

Problems solved by technology

[0002] In recent years, the technology of car navigation has developed very rapidly, and it is very convenient to obtain relevant traffic information. GPS information marks the location of the vehicle on the map. By inputting the destination address, the terminal automatically finds a route on the map. The disadvantages of this type of product mainly include two aspects. First, the map needs to be updated frequently. Generally, the map update of this type of product The frequency is once every six months or even once a year. Due to the rapid development of the city, this update speed can no longer keep up with the pace of changes in urban road construction. The use of outdated maps will seriously affect the accuracy of navigation; secondly, the real-time road conditions cannot be obtained. Since the offline navigation is used, the optimal navigation route planned is based on the physical route on the map and does not take into account the real-time traffic conditions. Therefore, the driving route planned by the navigation system is not necessarily a time-consuming route during the peak hours of urban traffic. The use of this system may increase the fuel consumption and time cost of travel during peak hours, which is inconsistent with the current society's current requirements for building energy-saving cities