KR19980053364A - Display method of vehicular traffic guidance system - Google Patents

Abstract

The present invention relates to a display method of a vehicular traffic guidance system, the method comprising: recognizing whether a moving vehicle has reached a distance close to an intersection while displaying a map including a desired route on a monitor; When the distance is displayed, the control signal is output to the on-screen display driver from the microprocessor that recognizes the distance, and the necessary number and character information is read from the character IC and displayed on the display panel of the instrument panel. At first glance, it is possible to make a quick and accurate decision about the surrounding situation and driving.

Description

Display method of vehicular traffic guidance system

The present invention relates to a display method of a traffic guidance system for a vehicle capable of setting a destination and a route and providing voice guidance. In particular, important information is displayed on a display unit formed on the front panel while displaying map data including a route selected by a user on a monitor. The present invention relates to a display method of a vehicle traffic guidance system that allows information to be accurately and quickly transmitted to a driver by displaying numbers and letters.

Nowadays, more and more people are driving their own cars to get to their destinations due to the increasing number of vehicles, and because of the complicated road conditions and the increasing number of vehicles, many vehicles coming from behind do not move quickly and accurately to their destinations. It hindered progress.

If the driver is embarrassed because the driver does not know the route to the destination in the case of a first-time or crowded city, the operation of the vehicle is further delayed and it is difficult to find the destination.

In particular, if you can't quickly decide whether you want to turn left, turn right, or make a U-turn at an intersection, you'll miss the opportunity to change lanes and have to change directions sharply, or you'll just have to go past and use a distant road to get back.

Therefore, the data of each map is subdivided and input using CD-ROM (Compact Disk Read Only Memory) for vehicle navigation system, and then GPS (Global Positioning System) using a satellite, gyro sensor, geomagnetic sensor, vehicle speed sensor, etc. By matching the current vehicle location with the map data, it is easy to search the road or select the route.

However, according to the screen display method of the conventional vehicle traffic guidance system as described above, CD-ROM driver, CD-ROM map program, GPS antenna. Hardware such as gyro sensors, geomagnetic sensors, and vehicle speed sensors can be used to guide the route to the destination, while the map is only displayed on the monitor and the monitor is in the middle of the driver's seat and driver's seat. In addition to the disadvantages of not being able to keep an eye on it or from time to time, if the driver notices too late to reach a left, right or u-turn intersection, he will miss the opportunity to change lanes and will have to turn sharply or simply There was a problem to go back by using a distant road.

Accordingly, in the present invention, while displaying map data including a route selected by a user on a monitor, important information is displayed on the display formed on the front panel by numbers and letters so that information can be accurately and quickly transmitted to the driver. It is an object of the present invention to provide a display method of a guidance system.

The present invention for achieving the above object is to recognize the state that the vehicle moves when displaying the map data on a conventional vehicle traffic guidance system,

Recognizing whether a moving vehicle has reached a distance near an intersection while displaying a map including a desired route on a monitor,

If the distance is close to the intersection, the control signal is output to the on-screen display driver from the microprocessor that recognizes it, and the necessary number and character information is read out from the character IC and displayed on the display panel of the instrument panel. By looking at the displayed guidance information, etc., it is possible to make a quick and accurate decision about the surrounding situation and driving.

1 is a block diagram schematically showing the overall configuration of the present invention.

2 is a flow chart illustrating an operation process of the present invention.

3 is a schematic diagram illustrating an embodiment of an on-screen display of the present invention.

Explanation of symbols on the main parts of the drawings

2: microprocessor 16: character IC

17: On Screen Display IC 18: Display Part

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In addition to the keys for the user to operate the vehicle, a selection key (SEL), an up / down key (U / D), an input key (IN), a position selection joystick (JOY), and a map selection key (EX / RE) A key input unit 1 including a key input unit for receiving a user's optional features;

A microprocessor (2) for controlling an internal operation by a method and a procedure of control stored in an internal program memory (3) when the key receives input of a user's option through the input unit (1);

First storage means of a memory 4 for temporarily storing and outputting information according to an operation under the control of the microprocessor 2;

Second storage means of the CD-ROM (5) for selectively outputting map data and attribute data stored therein under the control of the microprocessor (2);

The map including the route to the destination according to the map data read from the CD-ROM 5 and the main place names are represented on the liquid crystal display unit 7 by the data signal selected and output by the microprocessor 2. Map data drive unit 6,

A sensor unit 8 which transmits an operation state of the vehicle to the microprocessor 2 through a geomagnetic sensor MAGNET, a gyro sensor GYRO, a speed sensor SPEED, and a brake sensor BREAK;

A GPS (Global Positioning System) receiving unit 10 for receiving radio waves of information on road conditions or vehicle driving directions from a satellite through an antenna 9,

Third storage means of the CD-ROM audio 11 for outputting data of voice guidance according to the progress of the vehicle under the control of the microprocessor 2;

An electronic volume 12 for controlling the level of data of the voice guidance output from the CD-ROM audio 11 while being controlled by the microprocessor 2;

After receiving a voice signal from the electronic volume 12 and receiving the voice signal from the other sound devices of the vehicle, selectively output under the control of the microprocessor 2 and amplified by the output amplifier 14 A function controller 13 for allowing sound to be heard through the speaker 15,

A character IC 16 which outputs data of numbers and characters stored therein under the control of the microprocessor 2;

Screen that receives the control signal of the data signal (Data), the strobe signal (Strobe) and the clock signal (Clock) from the microprocessor (2) while receiving the data of the numbers and characters output from the character IC (16) An on-screen display IC 17 for outputting a display signal;

The numerals and letters are represented by the on-screen display signal transmitted from the on-screen display IC 17, and the display units 18 are located on the front panel of the driver.

The screen display method of the vehicular traffic guidance system of the present invention configured as described above selects the display mode of the map while recognizing whether the user turns on the selection key SEL of the key input unit 1 to receive traffic guidance while driving the vehicle. If the user selects the display mode (step 21), the microprocessor 2 which receives the input is displayed to select the starting position and the destination of the vehicle through the liquid crystal display 8 (step 22).

In the microprocessor 2, the name of the starting point and the destination is sequentially entered on the liquid crystal display 8 through the map data driver 7 according to a state in which the user presses the up / down key U / D of the key input unit 1. In step 23, the user selects a current starting point and a desired destination and inputs a desired place name through the input key IN (step 24).

When the user selects and inputs a place name of a starting point and a destination through an up / down key (U / D) and an input key (IN) of the key input unit 1, the microprocessor 2 recognizes the destination. After setting the route to the optimum state (step 25), the CD-ROM 6 reads the map information of the area to be routed when the driver wants to go from the origin to the destination (step 26). The data signal, the clock signal and the strobe signal are output to the map data driver 7 and displayed on the liquid crystal display 8 (step 27).

While displaying the map data, the GPS receiver 10 and the sensor unit receive the current position of the vehicle while receiving information on the road situation from the satellite through the GPS receiver 10 via the antenna 9 (step 28). Check through the geomagnetic sensor, the gyro sensor, the speed sensor and the brake sensors of (9) (step 29).

Then, after displaying the destination mark selected by the driver so as to be located at the upper center portion of the map of the liquid crystal display 8 (step 30), the current vehicle position is displayed as the current position mark of the vehicle at the center lower portion of the liquid crystal display 8 ( Step 31).

When the vehicle is moved in the state and the position change is confirmed through the geomagnetic sensor, the gyro sensor, the speed sensor, and the brake sensors of the GPS receiver 10 and the sensor unit 9 (step 32), the direction of the vehicle in progress And the angular velocity is tracked through the geomagnetic sensor and the gyro sensor of the sensor unit 9 (step 33).

Next, the state of movement of the vehicle on the map displayed on the liquid crystal display 8 is checked (step 34), and the current position mark of the vehicle is moved according to the movement distance of the vehicle (step 35), corresponding to the movement direction of the vehicle. The orientation of the map displayed on the love display unit 8 is rotated and displayed through the map data driver 7 as much as an angle (step 36).

On the other hand, it is recognized whether the moving vehicle has reached a distance close to the intersection (for example, about 50 m, which is a sufficient distance to change lanes), or a distance close to an unaccessible area (step 37). If so, the microprocessor 2 that recognizes this outputs a control signal to the character IC 16 so that the data of numbers and characters stored therein are read out (step 38).

At the same time, the control signal of the data signal (Data), the strobe signal (Strobe) and the clock signal (Clock) is output to the on-screen display IC 17, while receiving the data of the numbers and characters output from the character IC (16) Output a screen display signal (step 39).

Therefore, by the on-screen display signal transmitted from the on-screen display IC 17, the display unit 18 located on the driver's front instrument panel 19 can easily and quickly recognize the situation in front of the vehicle as shown in FIG. It represents numbers and letters that can be done.

Therefore, according to the display method of the vehicular traffic guidance system of the present invention, while displaying a map including a desired route on a monitor, the on-screen display driver from the microprocessor recognizes whether the moving vehicle has reached a distance close to the intersection. By outputting the control signal, the character IC reads out the required number and character information and displays it on the display panel of the instrument panel. It is possible to make an accurate decision.

Claims (3)

Recognizing whether a moving vehicle has reached a distance near an intersection while displaying a map including a desired route on a monitor, Outputting a control signal to the character IC from the microprocessor that recognizes the distance when the distance is close to the intersection, and reading necessary numeric and character information; And displaying the numbers and letters on the display of the instrument panel by outputting a control signal from the microprocessor to the on-screen display IC. The method for displaying a screen of a traffic guidance system for a vehicle according to claim 1, wherein the display unit warns of entering into an area in which access is not possible, including an intersection. The method of claim 1, wherein the display unit uses the on-screen display display unit of the point gauge of the vehicle separately from the monitor displaying the map.