DE3001482A1 - METHOD FOR SIMPLIFYING THE REPLACEMENT OF THE AREA INSERTED IN A CARD DEVICE - Google Patents

Description

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The invention relates to a method for simplifying the changing of the area inserted in a card device a map, wherein the map device has a tracking computer that is derived from the navigation system location coordinates of the vehicle provided in each case to these coordinates corresponding point to be marked is calculated within the inserted area of the card and a control circuit for the drives for the corresponding setting of a movable marking of the card device makes effective, in particular for a card device according to

any one of claims 14 to 17 of the patent

(Patent application P 29 38 483.6).

Usually with card devices several, separate and contiguous or something overlapping map sheets used; when the card edge is reached in a card sheet, the card sheet becomes changed and it then requires a shift of the movable marking of the card device by a card sheet width or card sheet height to get to the correct readjustment of the marking. With this consideration a run-up of a stretch of road after the marking has hit the edge is not taken into account} for this are solutions known, which is why this case need not be considered here.

In the main patent mentioned at the outset, among other things, a card device was proposed in which it is possible to use a insert normal map into the card device, with only a part of the total map in the window of the card device is visible. For this purpose, a part that can be folded up and contains movable marking strips is provided;

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the card is folded up between this part and the base plate inserted and clamped. Here it is possible to display any map section in the · window of the card device. It is necessary to provide the computer with a reference to the map and the map align so that the coordinate grid has a certain predetermined orientation.

If a specified trip or flight is to be carried out, for example diagonally within the map, then the use of such a freely movable map is more suitable than the use of individual ones Map scrolling, because the areas to be inserted into the map device are better adapted to the journey or the flight can.

The task on which the invention is based is to facilitate the insertion of these areas.

This object is achieved by the features specified in claim 1.

By preselecting and identifying reference coordinates in the travel or flight area in the map and the storage of their coordinates in a memory is the insertion of the required map areas one after the other easy to do. The operator then only has to enter the corresponding area in the window of the card device insert and at the same time the reference coordinate marked on the map with a fixed marking in the map device bring to cover. Since the tracking computer has the position of this marking in the map device at its disposal, after inserting the map area, the map coordinates lying under this marking from the memory e.g.

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by. Available at the push of a button by the operator and the actual coordinates of the actual location are also delivered to him by the navigation system he is able to respond to the actual. appropriate point in the inserted To calculate map area and to influence the control circuit so that the movable marking of the card device is moved by the drives to the corresponding point on the map. So remains for the operator just inserting, aligning (aligning) and pressing a button to call up the corresponding memory content. For this purpose, for example, only one of several keys assigned to the individual memories needs to be actuated or a code number (address) assigned to the individual memory can be keyed in.

Exemplary embodiments of the invention are explained with the aid of the drawing. Show it

Fig. 1 - an embodiment of the invention. Fig. 2 - a diagram for explaining others Execution forms

In Fig. 1, an embodiment of a card device according to the invention is shown. Figure 1a shows a Top view, Figure 1b is a side view of the device, from which it can be seen that the part 2, which the two means Cables displaceable marking strips 4, 5 includes, can be folded up by means of the hinges 3, and so on can insert a conventional map between the base plate 1 and the fold-up part 2. A fixed one Marking bears the reference numeral 6. 7 is a display device, and 8 is an operating device.

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Before starting the journey, the navigator looks for various (easily readable) grid intersections in the one to be driven through Area of the map and marks it, 'by giving you a code number, for example. For storage of the associated coordinates, first the key with the additional designation NO is pressed, then the Code number typed in using the operating device 8; after pressing the ENT key, appears the letters E and N on the display device 7 prompting the north and east of the marked Grid point and store it in the memory selected with the code number (ENT).

While driving, if one approaches the hand of the inserted area of the card, the card will be displayed accordingly the further route moved, with the marked grid intersection of the next to be used Area of the map with the marking 6 is brought to coincide. After pressing the NO key and entering the associated The code number is given to the computer by the coordinates of the map point located under the marker 6 Provided. Since the computer determines the position of the fixed marking 6 and the position of the marking 9 knows, the actual coordinates of the vehicle are displayed to him and he a map reference through the from Store the coordinate values that came under the mark 6 has lying map point, he can cause the adjustment of the marker 9, so that the location is displayed on the map.

According to a further development of the invention, the work of precisely "inserting the card into the card device" can be performed make it easier by only approximating the marked grid intersection with the fixed marking brings to cover. It is. then, however, necessary that

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the adjustable marking of the card device forms this fixed marking, i.e. when entering * des Map area change command is running at this particular point.

The method according to the invention should be based on FIG are explained in more detail. There, the window of the card device is designated with 20. The point 6 of Figure 1 The corresponding point 21 is not indicated here by a fixed marking, but by the adjustable marking marked j the marking is - as in Figure 1 - through the intersection of the displaceable threads educated. When the card change command is issued, the crossing point of the thread runs through the corresponding activation of the drives the threads always automatically to position 21. Now the new map area is inserted. When applying this In a further development of the method according to the invention, it is sufficient if the marked grid intersection point is approximately with the point 21 is brought to congruence.

In FIG. 2, the grid intersection marked with 24 dor and the associated grid lines with 24a and 24b. By actuating the drives for the threads 22 and 23 by the operator, the threads are then moved around Ax and Ay set to point 24, i.e. the thread intersection brought to cover with the marked grid intersection point 24. The adjustment paths Δ χ and Δ. y will be in Tracking computer saved! when calculating the setting of the threads for the location display later, these Adjustment paths are taken into account. In other words, a map reference point does not have to be related to a specific one Position of the card device, but its storage is determined and taken into account from this point,

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This makes it essential to insert the card, especially if the operator only has one hand available relieved.

The correction given above is sufficient if the card is aligned, that is to say, for example, the grid line 24b lies parallel to the thread 22. If the map, as assumed in FIG. 2, is still rotated by the angle f , an additional correction must be made. For this purpose, for example, the thread 22 is provided with a marking 25 or 25 * which is at a predetermined distance 1 from the point 21. The thread 22 must now be adjusted by the distance As until its marking 25 lies on the grid line 24b (in 25 ')

From the relationship

j. * f - & S

or the approximation

_ ^ _ s _da f _small

j can be calculated and taken into account when setting the threads for displaying the position. Instead of a marking on the thread 22, the thread 23 can also be moved downwards by the distance 1 in order to: · Find the point 25 to which the thread 22 must be set.

Instead of the marking 25 or 25 'on the thread, a marking can also be provided on the grid line 24b (this is assumed to be identical with 25'), which is at the known distance I ¹ from the marked grid intersection point 24. For example, this marking can be given by another, for example, the next grid intersection. Now will

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the thread 22 is shifted from the position in which it passes through point 24 until it passes through 'the marking 25' to As. From the determined value for s and the known size of l * can now be calculated as follows:

_sin y ₌ A_s_ _or> / ^ ^ s _{(since Ί small)}

The method of the first claim includes that several points are marked on the map and their coordinates should be saved. The correction methods of the following claims are of course related Applicable with the method of the first claim, but also applicable in the same way if an unprepared Map creature takes place, so no grid intersections and their data are not saved, but only when you change cards Grid intersection selected and its data must first be entered.

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Claims (3)

TELDIX GmbH P.O. Box 10 56 08
Grenzhöfer V / eg 36 6900 Heidelberg 1 Heidelberg, December 20, 1979 PI-Ka / Ba E-461 Method to simplify changing the area inserted in a card device a map (Addition to patent application P 29 38 483.6) Claims Method for simplifying the changing of the area of a map inserted in a map device, wherein the map device has a tracking computer, the from a navigation system location coordinates of the vehicle provided in each case to these coordinates corresponding point to be marked within the inserted area of the map is calculated and a control circuit for the drives for the appropriate setting of a movable marking of the Makes card device effective, especially for a card device according to one of claims 14 to 17 of the 130030/0352 / 2 E-461/2 patents Patents (patent application P 29 3.8 483.6), characterized in that when a distance to be covered is known, a grid intersection is identified in each of the map areas required in succession and its easily readable coordinate values are entered into a memory and that when the map area is changed, a fixed marking (6) of the map device is brought into line with the identified grid intersection and the associated stored coordinate values are made available to the computer as reference coordinates for calculating the new position of the movable marker in the map. 2. The method according to claim 1, characterized in that the fixed marking is formed by the marker (21) of the card device running at a certain point when changing cards, that the marked grid intersection (24) in the card is only approximately with this point Coincidence is brought that the marking (21) dos card device is then adjusted in the coordinate directions by lengths ίΔχ and * Ay so that the marking (21) and the grid intersection (24) coincide and that the adjustment paths required here (ίΔχ and ± Δ y) _VO m tracking computer detected and taken into account in the later setting and tracking of the marking (21). 3. The method according to claim 2, characterized in _t that a skew of the Karte.im card device wjlrd taken into account the fact that the mark (located in 24) in a given coordinate direction (x) so long as (Δ s) / 3 130030/0352 E-461/3 Claims is adjusted until a point offset in the other coordinate direction (y) in the extension of the marking and a predetermined distance 1 from the fixed marking (21) coincides with the associated grid line (24b) going through the marked map point and that out this known length 1 and, depending on the chosen coordinate direction of the length i Δ χ or ί Ay, the angle of rotation J of the card according to the relationship Δ s , As ^or or the approximation "(da ^ small and Δ y is determined and that this angle when calculating the setting and tracking of the marking is taken into account. Method according to Claim 2, characterized in that the card is inclined in the card device it is taken into account that the marking (lying in 24) in a predetermined coordinate direction (x) as long as (Δ s) is adjusted until one of the marked grid intersection point (24) by a predetermined length 1 point (25 ') at a distance and lying on the grid line (24b) in the other coordinate direction Extension of the marking in the x or y direction is brought to cover and that from the sizes 1 and Δ s the twist angle tf according to the relationship sin J = 'or the change J = -γ- 130030/0352 / 4 300H82 E-461/4 Claims is determined, and that this angle "in the calculation the setting and tracking of the marking ■ is taken into account. 130030 / 03S2