JPS61100609A - Apparatus for correcting start point of navigator for vehicle - Google Patents

Abstract

PURPOSE:To make it possible to simply correct the data at a start point once inputted prior to starting running, by canceling the data at the start point and correcting a selectively changed-over desired point as the data of a new start point. CONSTITUTION:An operation key 2c is set as a lead one and the data at the start point of a vehicle and that of the objective point of a running destination are inputted by a code number of plural figures. The data at the start point is selectively changed over to a desired point by operation keys 2e-2i of an English character and canceled by a microcomputer 5 while the selectively changed-over desired point is corrected as the data at a new start point and running route guide data is operated on the basis of the data at the new start point and the data of the objective point. By this method, the data at the start point once inputted by a code number can be simply corrected to the data at the desired point only by operating one selection switch.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a vehicle navigator that is mounted on a vehicle and instructs the occupants about the current location and direction of travel, etc. The present invention relates to a departure point correction device that easily modifies departure point data.

[Conventional technology]

As a conventional vehicle navigator, for example, JP-A-58-
This is a technique as shown in Japanese Patent No. 215017. This method calculates and displays the shortest route between the two points by inputting the numerical code number corresponding to each point as the departure point data and destination point data using the operation keys.

[Problems to be solved by the present invention]

According to such conventional technology, crew members do not always input departure point data accurately, and if they input inaccurate data in unfamiliar territory, they must check the hood number corresponding to the exact point. You will need to re-enter using the operation keys.
It was very bothersome.

The present invention was invented in view of the above-mentioned problems, and its purpose is to provide a vehicle navigator with departure point data that can be corrected with just one operation. The purpose is to provide formal attire.

Means and Examples for Solving Problem C] The present invention (C
The departure point data q of such a vehicle navigator is stored in a map information storage unit 1 that records map pattern data as shown in FIG. a point data input section for inputting the starting point data, a selection switch for selecting and switching the starting point data to a desired point, and a starting point correction for canceling the starting point data and correcting the selected and switched desired point as new starting point data. means, route calculation means for calculating travel route guide data based on the new departure point data and the destination point data, and a display section 6 for displaying the map pattern data and the travel route guide data in a heavy electric manner. +l'+form.

Reference numeral 2 designates an operation panel, which, as shown in FIG. 2, is provided with contact operation keys 2a to 21 having normally open contacts (not shown) that are temporarily turned ON only during a suppression operation. These operation keys 2a to 21 are used to issue data switching signals based on map pattern data inputted from the map information storage section 1 to the microcomputer 5.

The operation keys 2a consisting of 10 numbers from "1" to "0" are used to enter the code number corresponding to each point. It has the function of a point data input section for inputting departure point data and destination point data of the travel destination. It has the function of a selection switch to select a desired point from points "A" to "E."The operation key 2b is a clear/clear signal that issues a clear signal to clear the point data input from the point data input section and the selection switch. Functions as a switch.Operation key 2d l-j Functions as a start switch that issues a start signal to start the route guide display system of the vehicle navigator.

3 is a direction detecting section which detects the direction of travel of the vehicle and inputs direction data to the microcomputer 5;
This is achieved using geomagnetic sensors, gyroscopes, etc. Reference numeral 4 denotes a vehicle speed detection section that detects vehicle speed and inputs vehicle speed data to the microcomputer 5. The microcomputer 5 inputs each data from the geoacoustic information storage section 1, each operation key 2a to 21 of the operation panel 2, the direction detection section 3, and the vehicle speed detection section 4, calculates and compares the data, and displays each data on the display section 6. In addition to outputting route guide display data, the functions of the starting point correction means and route calculation means will be explained based on the control flowchart of the microcomputer shown in FIG. In addition, number 10 in Figure 6
1 to 116 indicate each step of the control flowchart.

Now, in a vehicle equipped with this device, when the ignition switch (not shown) is turned on, the microcomputer 5
receives a stabilizing voltage from a stabilizing snowfield circuit (not shown) and enters the operating state, and executes the arithmetic processing of the control program at a fixed period of about several hundred milliJ seconds.

That is, the arithmetic processing is started from the start step shown in FIG. 3, and the process proceeds to the initial setting routine 101, where the registers, registers, latches, etc. in the microcomputer are set to the initial states necessary for starting the arithmetic processing. Next, step 1
In step 02, map pattern data is input from the map information storage unit 1, and the corresponding map pattern is displayed on the CRT 61).
Proceed to step 103. In step 103, operation key 2
Enter the starting point data and the destination point data of the traveling light by operating the combination of c and 2a. Next, step 10
In step 4, find the shortest distance between both points based on the above point data,
A route that can be traveled in the shortest time is calculated, and the map pattern data and travel route guide road display are displayed in 11x11 on the CRT 6b. At this time, the CRT6b displays its display surface S.
For example, map pattern data as shown in FIG. 4 is displayed. The display format is, for example, a map pattern in the vicinity of the departure point, with general road display being represented by Sl, and route guide road display being represented by B2. Furthermore, each intersection on the road in this map pattern' is marked with an identification symbol for each individual point, for example, the English letter A as shown in FIG.

B1......E is displayed. In this case, the departure point corresponding to the departure point data is displayed as point A. Although not shown in FIG. 4, names such as road names and intersection names are also displayed on the display surface S of the CRT 6b.

Next, in step 105, the selection switch, that is, the operation key 2
It is determined whether e to 21 are ON, and if the determination is YES, the process proceeds to step 108, and if the determination is N or O, the process proceeds to step 106. In step 106, it is determined whether the start switch, that is, the operation key 2d is ON, and if the determination is YES, the process proceeds to step 107, and if the determination is NO, the process returns to step 105.

Step 107 causes the CRT 6b to display a guide degree of the vehicle travel route based on the data on both points inputted in step 103. This guide display superimposes map pattern data and travel route guide data, and, for example, distinguishes and displays the route the vehicle has traveled and the route the vehicle has not traveled, and displays the route the vehicle has traveled with a dotted line or It is also possible to display the untraveled route as a solid line.

On the other hand, if YES is determined in step 105, that is, it is determined that the selection switch is ON, step 10B is performed using the operation key 2e.
Point X, which is the point determined by which of 21 to 21 is turned on, is the point A, which is the starting point input in step 103.
Determine whether it matches the point and select YES'l! If 11 is constant, step 109, if NO, step jQ6 ψ
nothing. Then, in step 103, the starting point data once input ((If there is an error or an incorrectly listed point, each point B to E near point A displayed on the display screen S of the CRT 6b) For example, if it is point B, turning on the operation key 2f causes the process to proceed to step 109.

Step 109 indicates that the X point is on the route, that is, step 104
At this time, it is determined whether the surface is on the route guide road display s2 shown in FIG. 4, which is displayed on the display screen S of the CRT 6t). Proceed to +3.

Therefore, if the above-mentioned point

Step 1fQ cancels the route from point A to point X of the route guide road display S2 shown in diagram α14,
Proceed to step 111. Step 1111dc'R'r
In 6b display S, the route from x 4 to the destination point in route kite road display S2 is displayed with It'd added. Next, the step 112 determines whether the start switch is ON, and if the determination is YES, the process proceeds to step 107, and the CRT 6t) guides the vehicle travel route using the X point as the base point, and if the determination is NO, the step 112 returns to its own step 112.

In addition, in step 113, since point X is point 0 to E on the general road display S' shown in FIG. Point Y, which is a certain intersection, is calculated and detected. For example, in the map pattern data shown in the 4th IC, the distance between each point is 8, the distance between points A and B is 8, the distance between points A and C is
Let the distance between points be 7, the distance between points C and D be 5, and the distance between points B and D be It depends on the following.

L 2(L, (L, (L,...)
...(1) (L1+ L5z) ((L3+L, 4)
・・・・・・(2)(L2+L3)>L, ・
(3) That is, when the X point is 0, the Y point is the A point, and when the X point is the D point, the Y point is the B point.

Next, in step 114, it is determined whether the above-mentioned point Y is inconsistent with point A, and if YES (≠1 constant), the process goes directly, and if the determination is No, the process goes to step 116 via step 115. Step 115 cancels the route from point A to Y, a. In step 116, a route from point X to point Y is calculated, and the process proceeds to step 111. In this case, in step 111, the following corrections are made and displayed on the display surface S of the CRT 6b. That is, if the X point is 0, the 0 point is used as the starting point, and the route via points A and B to the destination point input in step 103 is displayed as the route guide road display S2. Further, if point X is point D, the route guide road display S2 is displayed starting from point D and passing through point B to the destination point.

Enhancement Example 1 (In this example, the number of operation keys 2θ to 21 as selection switches is not limited to five, and can be made to correspond to the hQ of the point indicated in the map pattern data as appropriate.

〔Effect of the invention〕

In a vehicle navigator, it is possible to provide a departure point correction device that can easily modify departure point data once entered using a code number to desired point data by just one-touch operation of one selection switch.

[Brief explanation of the drawing]

1st:,! , (FIG. 2 is an electrical equivalent block diagram showing a preferred embodiment of the starting point correction device for a vehicle navigator according to the present invention, and FIG. 2 is the operation in FIG. 1). FIG. 1 is a control flowchart of the Kel microcomputer, and FIG. 4 is a display diagram showing an example of the display on the display screen of the CRT in the 11iJl. 1...Map information storage unit, 2...Operation panel. 2a to 21...operation keys, 5...microcomputer, 6...-display section. that's all

Claims (1)

[Claims] a map information storage unit that stores map pattern data; a point data input unit that inputs data on a departure point and a destination point where a vehicle travels based on the map pattern data; and a selection switch that selects and switches the departure point data to a desired point. a switch, a departure point correction means for canceling the departure point data and modifying the selected desired point as new departure point data, and calculating travel route guide data based on the new departure point data and the destination point data. 1. A starting point correction device for a vehicle navigator, comprising: a route calculation means for calculating the map pattern; and a display section for superimposing and displaying the map pattern data and the traveling route guide data.