JPH0261516A - Destination guide apparatus - Google Patents

Abstract

PURPOSE:To calculate and display the direction and distance of a destination point by preliminarily storing a place name or building name and the position coordinates data thereof in a memory device and selectively inputting the present position and the destination point. CONSTITUTION:A plurality of pairs of the name and position data of a point are stored in a memory device 4. Then, by operating an operation key 1, an address signal is generated through a keyboard controller 2 and an address generation part 3 to output the name and position data of an arbitrary place. Latches 5, 6 store said output temporarily and output the point name data to a present position display means 7 and a destination display means 8, and also input the position coordinates data to a distance calculation means 9 and a direction calculation means 11. After the calculation, a distance and a direction are outputted to a distance display means 10 and a direction display means 12 to be displayed thereon and the direction can be also displayed on a direction meter 13.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a device for grasping and guiding the location of a destination relative to the current location by inputting a person at the current location and a person at the destination. It is.

(Prior Art) Conventionally, as a device for guiding a destination, there is a device for automobiles that combines a geomagnetic sensor, an odometer, and a CD-ROM containing a large amount of map data, and constantly displays the current location and provides road guidance. However, I need road data for
It will be large-scale, expensive, and large.

(Means for Solving the Problems) The present invention is capable of recording place names, building names, etc. and their position coordinate data in advance in a storage device, and by selectively inputting the current position and destination point, the position coordinate data and the compass are displayed. In combination with this, the direction and distance to the destination point are calculated and displayed, allowing the user to grasp the destination point.

(Actions and Examples) The present invention will be explained below with reference to Examples.

In FIG. 1, by operating an operation key (1) on a storage device (4) in which a plurality of pairs of pointer and position data are stored, a key controller (2) and an address generator (3) are activated. Generates an address signal through.

Arbitrary place names and location data are configured to be output. In addition, the latch (5) and the latch (6) temporarily store this output, and regarding the point base data, the current position display means (7) and the destination display means (7) respectively.
8), the position coordinate data are both input to the distance calculation means (9) and the direction calculation means (11), and after calculation, are output to and displayed on the distance display means (10) and direction display means (12), respectively. Ru.

An example of the point base and position coordinate data in the storage device (4) is shown in the table of FIG. The place names are sorted, for example in the order of Aiwe, and the location coordinates are north-south, north-south,
It is assumed that the XY coordinates are scaled east to west at an appropriate scale.

(Function) First, select the current position by operating the operation keys and adding +1 or -1 to the address from the address generator. When the latch (5) is opened, place name data are sequentially displayed on the current position display means 7, and the current position is selected. Next, the destination light position is similarly selected by operating the operation keys through the latch (6) and the destination display means.

Once the current position and the destination light position are determined, the distance calculation means has input the position coordinate data (Xi, Yl) of the current position and the position coordinate data (X2, Y2) of the destination light position, so v'( When XI-X2)2+(Yl-Y2)2 is calculated, this becomes the straight-line distance between the two points, and this is displayed on the distance display means.

The same data is also input to the azimuth angle calculation means (11), and an example of azimuth calculation from the current position 'Fx (XI, Yl) to the destination light position (X2. Y2) is shown in FIG.

Let's consider the angle θ=0 with true north and the positive direction with the clockwise direction, dividing it into four ranges.

However, 8BS(): Absolute value ARCTAN(): Arctangent(a) Y2-Yl>O or ABS((X2-Xi)
/(Y2-Yl))<:1 then 0 = ARCTAN((X2-XI)/(Y2-Yl
)) (b) When Y2-Yl<0 and ABS((X2-XI)/(Y2-Yl))<=1, θ= 180″+ ARCTAN((X2-Xi)/Y
2-Yl)) (c) Y2=Y1 or Al35((
When X2-XI)/(Y2-Yl))>1 and X2-XI>0, 0=90°-ARCTAN((Y2-Yl)/(X2-
Xi)) (d) Y2=Y1 or ABS((X2-
When XI)/(Y2-Yl))>1 and X2-XI<0, θ=270°-ARCTAN((Y2-Yl)/(X2
-XI)) The azimuth angle can be determined by calculating the following.

This is displayed on the azimuth display means (12).

Examples of the compass (13) are shown in FIGS. 4 and 5.

The permanent magnet (16) has a scale board (I7) with ■, 2.・
・・・・・・It is marked with 12 scales. The scale plate (17) has a pivot bearing (19) in the center, which rests on a pin (15) attached to the scale case (14). Therefore, due to the action of the earth's magnetic field, this scale plate always faces in a fixed direction. If the magnet is attached so that scale 12 faces north, scale 6 will be south, scale 3 will be east, and scale 9 will be west.

Therefore, by displaying this number on the azimuth angle display means after calculating the azimuth angle, the user can know the current location and the direction to the destination.

Another example of the azimuth angle display means is shown in FIG.

As a compass (13), the magnetized needle (20) points north and south, but as an azimuth indicator (■2), there are 12
display elements LL, L2. ... ・L12,
This is the arrangement. When displaying the azimuth angle θ, the display element at a position rotated clockwise from L12 by θ is turned on, as shown in FIG.

The operator rotates the entire device while holding it so as to align the north pole of the magnetic needle (20) with the illuminated display element. Then, the direction the operator faces is the direction of the destination. It is easy to understand if an arrow (21) indicating the destination is attached to the top of the device.

This display element can be a light emitting diode, a liquid crystal display element, or the like.

This system can be made smaller by using a microprocessor, and the selection method can be made more sophisticated by creating software such as arranging the location names in a hierarchy.

The selection of the location person is not only possible by simply specifying the location directly, but also by adding attribute data to each location, thereby specifying the attribute and allowing the selection to be made automatically.

For example, by inputting the current location and then specifying the attribute "station", it is possible to display the station name and location of the station closest to the current location.

This calculates the distance for all location data with the same attributes within the device and finds the shortest distance location.

It is done by selecting.

An example of this flowchart is shown in FIG.

This function is not only available at 1M, but also at post offices, banks, department stores,
It can be defined as an attribute and used as needed, such as various specialty stores, various restaurants, various gaming facilities, etc. moreover
Another data structure is to create blocks by collecting objects with the same attributes. In that case, once the attributes are determined, the block is searched, and then the closest location within that block is searched.

Furthermore, it is also possible to use combination logic of not only one attribute but two or more attributes.

Furthermore, the location name data can also be organized into an N-level structure for regions, specifying a large region classification first, and searching within that region.

It is also possible to register an address as a place name and have it selectively input. In that case, first the city, then the town, then the
Next, address data such as the street number! By storing the data in a ' format, input operations can be simplified and the amount of position data can be reduced. For example, if the address is C-chome, B-town, A-city, the location data for A-city is the center point of the city.
It is registered in units of IOK m, and the center point position of town B is registered in units of IKm as relative position data to the position data of city A, and C-chome is registered as its center point; 6
As relative position data to the position data of A city and B town, it is 100 m first, and the same goes for address D, which is 10 m! It is registered with the relative position data of the li position. Therefore, A city B
The location data for the address of C-chome in the town is the sum of these four pieces of data.

In that case, the method of designating the location person is (A) A City
(B) A City, B Town (C) A City, B Town Street (D) A
It is possible to specify four types of city Bwr C-chome address.

Next, an example will be shown in which distance and direction are displayed in two pairs.

If data on the direction of the road that passes beside the point name data is recorded, calculate the answer separately for the direction of the road that the current point touches and the direction perpendicular to it, and calculate the direction and distance of the road, and It is also possible to display the direction and distance perpendicular to the road. Since roads are often relatively orthogonal, this display method is also effective.

(Effects of the Invention) As described above, according to the present invention, there is no need to create complex data such as road data, and the location person is directly specified, making it easy to understand and freely moving from large-scale positions to small-scale positions. In addition, by using attribute data, it is also possible to specify the destination as the closest place with any attribute. Furthermore, since the amount of data is relatively small, it is easy to create data, and it can be created compactly and inexpensively.

[Brief explanation of the drawing]

Figure 1 is a block diagram of an embodiment of the present invention Figure 2 is a table showing an example of data Figure 3 is a subnational policy for calculating azimuth angles Figure 4 is a plan view of the compass Front sectional view FIG. 6 shows another embodiment of the compass and azimuth angle display means. FIG. 7 is a flowchart for searching the destination (1) is the operation key, (2) is the keyboard controller, (3) is the address generator, (4) is a storage device, (5)
and (6) is a latch, (7) is current position display means, (
8) is a direction light display means, (9) is a distance calculation means, (10
) is a distance display means, (11) is an azimuth calculation means, (12
) Azimuth display means, (13) is a compass, (14) is a case, (■5) is a pin, (16) is a permanent magnet, (17)
is a scale plate, (18) is a glass plate, (19) is a pivot bearing, (20) is a magnetized needle, and (21) is an arrow indicating the destination.

Claims (2)

[Claims] (1) A storage device that stores the names of multiple locations and their location data, and at least 2 locations from among the multiple locations.
a means for specifying one point, a means for calculating and displaying the distance between the two points from the position data of the two specified points, and a means for calculating and displaying the azimuth from the first point to the second point. A destination guidance device characterized by a means and a direction indicator. (2) A destination guidance device according to claim 1, which includes means for identifying attributes for each point. (3) As a means of specifying point 2, specify the attribute or combination of attributes of point 2, and specify point 2 from the group of points that meet the conditions based on the order of distance to point 1, etc. A destination guidance device according to claim 2, which has the function of: