KR19980013762A - Vehicle navigation system - Google Patents

Abstract

The present invention relates to a car navigation system, and more particularly, to a car navigation system for tracking and displaying a current position of a car on a map screen provided from a map data storage unit 5 for storing various types of geographical information related to road conditions A direction sensor 9 for sensing the direction of movement of the vehicle, a vehicle speed sensor 10 for sensing the traveling speed of the vehicle, a position of the vehicle on the map screen according to the detection results of the sensors and the current position of the vehicle A control unit 4 for determining a driving trajectory and a driving history, and a control unit 4 for storing data related to a driving trajectory and a driving history of the vehicle determined by the control unit 4 and simulating the stored data at the time of inputting a predetermined control signal And a running data storage unit 11 for storing running data.

Description

Vehicle navigation system

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a car navigation system, and more particularly, to a car navigation system for storing a driving history of a car.

In recent years, the increase in the number of vehicles on the road has caused very large traffic congestion. Such traffic congestion is even more serious in large cities, but there is a demand for resources that can not be afforded to expand road networks due to the astronomical rise of land prices. Therefore, as a more practical solution, an attempt is made to efficiently control the traffic flow by using the existing road network as it is, but using an artificial intelligent system. As one of the methods, a car navigation system This is under development. The most basic function of this car navigation system is to track the location of the vehicle in operation and accurately display it on the road map. Ancillary functions can be used to grasp the traffic situation on other roads or useful information about hotels, gas stations, There is a function to provide.

Such a car navigation system includes a stand-alone navigation system that employs a plurality of sensors and tracks vehicle positions using information provided from the sensors, a batting navigation system that uses position information provided by a GPS satellite, And a hybrid navigation system that combines the two systems.

1 is a control block diagram of a conventional batting navigation system of a vehicle. As shown in FIG. 1, the conventional batting navigation system is installed at a main point of the road, receives radio waves simultaneously from three different global positioning system (GPS) satellites 1, and calculates the longitude and latitude of the point A map data storage unit 5 for storing road map data, and a controller 5 for processing the longitude and latitude data received by the GPS receiver 3 to store the current position of the vehicle in the map data storage A display unit 8 for visually displaying an optimum road map to a current position and a destination of the vehicle, a display unit 8 for visually displaying the current position and a destination of the vehicle, and an automatic navigation control unit 4 And an indicator mechanism (7) for driving the indicator (8) according to the control.

1, reference numeral 2 denotes an antenna connected to the GPS receiver 3 to receive GPS data in the form of radio waves, 6 denotes a key input unit, and the key input unit 8 is connected to a map It can be used to reduce or enlarge the screen.

On the other hand, as the number of vehicles increases, traffic accident rates and vehicle - based crime rates also increase. However, since there is no electronic means to identify the situation at the time of an accident in the event of an accident, it was possible to obscure the complaint by the statement of the driver, the road condition at the time of the accident and the statement of the witness, .

Accordingly, the present invention provides a vehicle navigation system having a driving history storage device for storing a driving trajectory and a history of a vehicle using such a conventional vehicle navigation system, and then simulating desired information about the driving trajectory and history of the vehicle in the future And the like.

1 is a control block diagram of a conventional car navigation system.

2 is a control block diagram of a vehicle navigation apparatus having a travel history storage device according to the present invention.

Description of the Related Art [0002]

1: GPS satellite, 3: GPS receiver, 4: control unit, 5: map data storage unit, 9: orientation sensor, 10: vehicle speed sensor, 11:

In order to realize this object, the car navigation system according to the present invention is a car navigation system for tracking and displaying the current position of a car on a map screen provided from a map data storage unit for storing various geographical information related to road conditions, A vehicle speed sensor that senses the traveling speed of the vehicle, a position of the vehicle on the map screen according to the detection result of the sensors, and the present position of the vehicle, and determines the driving trajectory and the traveling history And a driving data storage unit for storing data related to the driving trajectory and the driving history of the vehicle determined by the control unit and for simulating the stored data at the time of inputting a predetermined control signal through the simulation unit.

The traveling data storage unit stores time data, position data of the vehicle, speed data, and traveling direction data.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a configuration and operation effects according to preferred embodiments of the present invention will be described in detail.

FIG. 2 is a control block diagram of a hybrid vehicle navigation system having a travel history storage device according to the present invention. The same components as those in FIG. 1 are denoted by the same reference numerals and will be described in detail below. A GPS receiver 3 installed at a main point of the road and receiving radio waves simultaneously from three different global positioning system (GPS) satellites 1 to calculate the longitude and latitude of the point, a map storing road map data A control unit 4 for processing the hardness and latitude data received by the GPS receiver 3 to match the current position of the vehicle with the map data provided from the map data storage unit 5, A display device 8 for visually displaying an optimal route to the destination and a current position of the vehicle on the road map; a display mechanism unit 7 for driving the display device 8 under the control of the control unit 4; And an orientation sensor 9 and a vehicle speed sensor 10 for sensing the direction and speed of movement of the vehicle in order to correct display errors caused by GPS data.

A driving data storage unit 11 (hereinafter referred to as a driving data storage unit) 11 for storing information on the current position of the vehicle determined by the control unit 4 and the traveling direction and the traveling speed of the vehicle detected by the direction sensor 9 and the vehicle speed sensor 10 ).

Reference numeral 2 denotes an antenna connected to the GPS receiver 3 for receiving GPS data in the form of radio waves. Reference numeral 6 denotes a key input unit. The key input unit 6 is connected to a map It can be used to reduce or enlarge the screen or to set the destination.

In this configuration, in the travel data storage unit 5, the position data per second of the vehicle received by the GPS receiver 3 and the traveling speed data and the time data of the vehicle detected by the vehicle speed sensor 10, Data and the like. This causes the control unit 4 to match the longitude and latitude data received by the GPS receiver 3 on the road map provided from the map data storage unit 5, And corrects the positional errors of the latitude and longitude data received by the GPS receiver 3 based on the speed and the traveling direction of the vehicle sensed by the GPS receiver 3 and the like. On the other hand, the data such as the position, progress direction, and the traveling speed of the present vehicle determined by the control unit 4 are sequentially stored in the traveling data storage unit 11.

Therefore, when the traffic accident or the like occurs, the running history stored in the running data storage unit 11 is simulated by a simulation means such as a personal computer or the like, thereby making it possible to more accurately determine the situation at the time of an accident.

As described above, according to the vehicle navigation system having the driving history storage device according to the present invention, the driving history and the driving trajectory of the vehicle can be stored, and the driving history and the driving trajectory of the vehicle can be simulated at a desired point in time. It is possible to easily grasp the driving route of the crime vehicle or the accident.

Claims (2)

A vehicle navigation system for tracking and displaying a current position of a vehicle on a map screen provided from a map data storage unit (5) for storing various types of geographical information related to a road condition, comprising: a direction sensor (9) A controller 4 for determining a driving trajectory and a driving history by matching the position of the vehicle on the map screen according to the detection result of each sensor and the current position of the vehicle, a vehicle speed sensor 10 for detecting the traveling speed of the vehicle, And a traveling data storage unit 11 for storing data related to the driving trajectory and traveling history of the vehicle determined by the control unit 4 and simulating the stored data at the time of inputting a predetermined control signal through simulation means do. The vehicle navigation system according to claim 1, wherein the traveling data storage unit (11) stores time data, position data of the vehicle, speed data, and traveling direction data.