FR2474162A1 - METHOD FOR SIMPLIFYING THE CHANGE OF THE REGION OF A GEOGRAPHIC MAP THAT IS INSERTED IN A CARD READER - Google Patents

Abstract

READER 1 INCLUDES A COMPUTER DETERMINING, FROM THE POSITION COORDINATES OF THE VEHICLE, THE CORRESPONDING POINT ON THE MAP REGION INSERTED IN READER 1 AND COMMANDS THE CORRESPONDING MOVEMENT OF A MOBILE MARK 9 OF READER 1. THE PROCEDURE CONSISTS OF AND CODE INTERSECTION POINTS OF THE CARD NETWORK ON THE MAP REGIONS TO BE INSERTED SUCCESSIVELY ON READER 1, TO STORE THEIR COORDINATES, AND TO CHANGE THE MAP REGION ON READER 1, MAKE THE MARKED POINT AND CORRESPONDING CODE IN A PRECISE POSITION 6 ON READER 1, THE CORRESPONDING STORED COORDINATES BEING PROVIDED TO THE COMPUTER AS REFERENCE COORDINATES FOR CALCULATING THE NEW POSITION ON THE CARD, SO THAT THE MOBILE MARK 9 IS ADJUSTED TO THE POSITION CORRESPONDING TO THE POSITION. APPLICATION TO NAVIGATION, ESPECIALLY AIR.

Description

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  The invention relates to a method for

  to simplify the change of the map of a geo-

  graph, which is inserted into a card reader provided with a tracking computer which, starting from the vehicle position coordinates, provided each

  required by a navigational installation.

  tion, calculates each time the point to be marked, corresponding to

  spawning at these coordinates, within the region

  inserted into the card and activates a circuit for

  training to adjust accordingly.

  a moving marker on the card reader.

  Usually, in the card readers, several card sheets separate from one another and connecting to one another or overlapping more or less are used; when the edge of a map sheet is reached, we change the sheet of

  card, and it is then necessary to move the

  the height of a moving marker sheet on the card reader to obtain the correct new setting

  of the marker. In this reading mode, we do not take into account

  a distance traveled after the marker landed against the edge; we know for that solutions and

  this is why this case does not need to be considered here.

  To use normal maps, which can be folded or divided,

  It seems advantageous to give the card reader a

  such that the card can be inserted by folding

  in the card reader, only part of the

  appears from the map appearing in the player window.

  For this purpose, there is a part able to rise and containing sliding marking strips; we insert and block the card between this lifting part and the

  base plate. It is possible here to bring in the window

  be from the card reader any piece of the card.

  It is necessary to communicate to the calculator a reference

  the card and align the card so

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  that the coordinate network has an alignment

prescribed and determined.

  If it is a question of carrying out a prescribed route or flight, for example approximately diagonally inside the map, it is more appropriate to use such a map, which can slide at will, that to use separate map sheets, because the regions to be inserted into the map reader may be better suited to the route or the flight.

  The object of the invention is to facilitate the

these regions.

  The problem is solved by the fact that, knowing a path to be made in areas of the map that are needed successively, each

  once a point of intersection of the network or other

  fathers and that we memorize the values of coordination

  easily readable data thereof, and that in case of change of the region of the map, is fixed each time in the card reader, in a specific position, the intersection point of the network or the map marker that it has been defined, and that is provided to the calculator, as reference coordinates to calculate the new position

  on the map, the stored coordinate values cor-

  corresponding, so that the movable marker is set to

  the position corresponding to the actual position.

  Because we choose in advance and

  defined in the map of reference coordinates.

  this located in the area traveled or overflown and that

  these coordinates are memorized in a memory, inserted into

  tion of the map areas, which are needed successively

  can be done more simply. It is then sufficient for the operator to insert the corresponding region in the card reader window and to bring for example the reference coordinate defined on the card to coincide with a fixed marker in the card reader. Since the tracking calculator has the position of this marker in the card reader, after the insertion of the map region, the map coordinates

  under this mark are provided to the calculator by the

  moire, for example by means of a button which is pressed

  and that, furthermore, he receives from the navigation

  the instantaneous coordinates of the actual position

  it is able to calculate, in the region of

  inserted card, the point corresponding to the position

  and influence the selection circuit so that the moving marker of the card reader is

  workouts on the corresponding point of the map. AIN-

  if, the operator only has to perform the insertion, the alignment (coincidence) and the pressure on the

  button to call the corresponding contents of the memory.

  For this purpose, it suffices for example to actuate one of several keys attached to the different memory or

  still, to enter a corresponding code (address)

vidually in memory.

  According to an advantageous improvement of the invention, a connection element is fixed to the card, for example a clamping element, a perforated strip

  or a splint, so that by means of a mount

  on the card reader, the card is

  to obtain a reference between the map and the

  tor. This is achieved by the fact that the link

  sound is provided with a marker, and that we put this mark in

  connection with the selected intersection point of the

  bucket, so that by introducing the coordination values

  data in the memory before starting the journey, when inserting the map, just call this

  value and the correlation between the movable landmark and the

  card is established automatically.

  If we use as a link

  its a transparent sheet or a similar element,

  can be affixed to the map and provided with holes for

  In addition, it is possible to affix several of these elements to different parts of a map and, depending on the

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  the choice of the portion, to put the card in relation to the card reader by means of the holes that are adapted to the points provided on the card reader in such a case, depending on the number of connecting elements, memory is stored coordinate intersection points

  and depending on the map portion, we can call them

corresponding data.

  According to another embodiment, it is

  by means of a coding affixed to the element of

  lo binding the coordinates of the intersection point of the

  bucket with which the connecting element has been correlated

  lation, so that by means of a detector device, the coordinates are detected during the insertion of the card and thus obtained, without manual introduction, the correlation between the mobile marker and the card. This coding can be carried out by sticks in a known manner or by holes, the holes being detected mechanically at

sensing means or optically.

  Examples of execution of the invention

  are described below with reference to the drawings on

  which Figure 1 shows an embodiment of the invention;

  Figure 2 is a diagram explaining from

very modes of execution

  Figure 3 shows a possibility of dis-

  position of a map in the map reader. FIG. 1 represents an exemplary execution of a card reader according to the invention. Figure la is a front view and Figure lb a side elevation of the apparatus, to see that can be raised through the hinges 3 part 2, which includes the

  two marking tapes 4, 5 which can be

  by means of cable controls, and thus, one can

  insert between the base plate 1 and the

  ble 2 a usual map. A fixed landmark carries

  reference 6. A display device 7 has been designated

  chage, and by 8 a control device.

  Before the start of the route, the navigator searches, in the region to be traversed on the map, different points of intersection of the network (clearly legible).

  and mark them by assigning them for example a code.

  To memorize the corresponding coordinates, it is

  first press the key with the designation sup-

  NO, then it strikes the code by means of the

  positive control 8; after pressing the ENT key, the letters E and N appear on the display 7

  invites the operator to enter the values of north (la-

  titude) and east (longitude) of the defined network point and store them in the memory (ENT) selected by

the code.

  Then, during the journey, when

  near the edge of the inserted region of the map, we slide the map in accordance with the rest of the course, and we bring the marked intersection point of the next

  region to use the map to coincide with the 6 mark.

  After having pressed the NO key and entered the corresponding code, the calculator is provided with the coordinates of the point of the card which is under the reference numeral 6. Since the calculator knows the position of the fixed marker 6 and the position of the marker 9, given the actual coordinates of the vehicle and that it has a card reference by the values, coming from the memory, of the coordinates of the point of the card, which is under the mark 6, it can cause the setting of the reference 9 of

  to indicate the position on the map.

  According to one embodiment, which facilitates the exact insertion of the card in the card reader, it brings the defined intersection point of the network to coincide only approximately with the fixed reference. However, it is then necessary that the benchmark

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  The adjustable card reader forms this fixed marker;

  to say that, when the order of change of

  region of the map, he went to that position determining

  undermined. The process will be explained more precisely

  according to the invention with reference to FIG.

  Here, the card reader window has been designated.

  Position 21, which corresponds to point 6 of FIG. 1, is here defined not by a fixed reference point but by the reference

  adjustable; the marker is formed - as in Figure 1 -

  by the insertion point of the moving wires. During the card change order, the point of intersection of the wires always goes automatically to position 21, as a result of a corresponding selection of the drives. The new map region is then inserted. When using this refinement of the method according to the invention, it suffices that the marked intersection point of the network

  to coincide approximately with the posi-

21.

  In Figure 2, we have indicated by 24 the point

  marked intersection of the network and 24a and 24b the

  networks. By activating the

  son of 22 and 23, the operator then moves the son of courses t x and LAy to get to point 24, and thus coincides the point of intersection of the son with the marked intersection point 24 of the network. Groceries

  t x and Z \ y are stored in the calculation calculator.

  after; when calculating the adjustment of the wires to indicate the position, these

  races. In other words, it is not necessary here to

  lead a reference point on the map to a position

  determined by the card reader, but the dis-

  which separates it from this position and

  account. Thus, the insertion of the card is notably

  ciliated, in particular when the operator has only

with one hand.

  The correction indicated above is sufficient, when the card is aligned, that is to say for example

  when the network line 24b is parallel to the wire 22.

  If the map is still inclined by the angle y, as assumed in Figure 2, an additional correction must be made. For this purpose, the wire 22 is for example provided with a marker 25, 25 ', which is located at a prescribed distance 1 from the position 21. It is necessary to

  now move wire 22 from the race \ s, jus-

  that his mark 25 is located on the line of

network 24b (in 25 ').

By the relation \ s

tg? = -

  1+ \ y or by the approximation tf Ai s, since t is small and 1 >> y, we can calculate and take into account when setting the wires for the position indication. Instead of a mark on the wire 22, it is possible to move the fi, 23 of the distance 1 downwards and thus find the point

  on which to adjust the wire 22.

  Instead of the mark 25, 25 'on the wire, it is also possible to provide a mark on the trunk line 24b (which is assumed to be identical to 25') which is situated at the known distance 1 'of the marked intersection point. 24 of the network. For example, this marker may be formed by another intersection point of the network, for example the following. The wire 22 is then moved from the position where it passes through the point 24, until, after it passes through the mark 25 '. According to the value determined for at s and the known magnitude of 1 ', we can now calculate + as follows: toAs' as

  sin f = -r or le'-y (since (f is small).

  According to the first method of execution

  invention, it is necessary to mark several

  points on the car-te and memorize their coordinates.

  The other modes of execution ("correction" methods) are of course applicable in combination with the first, but they are also applicable when

  makes an unprepared card change, so when

  that there are no predetermined intersection points of the network, whose data are stored, but

  that when changing the card, it is first necessary to select

  a point of intersection of the network and introduce

the data of it.

  Figure 3 shows a folded map 33, which

  is hooked to spikes27 of the card reader 1 (only

  partially represented) by means of a partially bonded sheet 26 which has housing holes

28 in the unglued part 2.

  On the card 33 is glued another sheet 34, the sheets 26, 34 carrying marker arrows, which are aligned on points of intersection of the network. In addition, on the sheets 26, 34 are affixed, in coded form, the coordinates of the corresponding network intersection point 29, 35. Between the points 27 of the reader

  of card 1 is provided a detector device 31.

  If the card 33 is inserted in the card reader 1 - as indicated in FIG. 3 - the detection device 31 detects by means of the coding 30 of the sheet 26 the point of intersection 29 of the network, or its coordinates, and communicates them to the calculator, which then indicates the actual position by means of the mobile marking on this portion of the map. If the position varies and arrives in the lower region of the map or moves down

  beyond the map portion shown, we can

  pull the card 33 and fold it in the region of the fold 32 and the card 33 is then fixed to the tips 27 by means of

  the sheet 34 which adheres only to the map by me-

  lower. If the card is made up of different

  the, the calculator then determines, by comparisons of coordinates, the next map sheet that is needed and indicates the number thereof on the optical display device. Thanks to this, even when using

  parts of the card, a change is made

  safe and fast portion of the visible map. The disc

  positive detector 31 then determines the coordinates of the new point of intersection 35 of the network, by coding of the sheet 34, and the continuation of the movable marker

  is carried out as described above.

Claims (8)

R E V E N D I C A T IO N S   1.- Method for simplifying the change of the region of a map, which is inserted   in a card reader equipped with a calculator of   which, starting from the vehicle position coordinates, provided whenever necessary by a navigation installation, shall calculate each time the point to be marked, corresponding to these coordinates, within the inserted region of the card, and puts into action a   drive selection circuit to adjust the   corresponding to a mobile marker of the card reader, characterized in that, knowing a path to be made in regions of the map that is needed   successively, we define each time a point of inter-   network section or other map markings (29) and that the easily readable coordinate values thereof are stored, and that in the case of a change in the region of the map, reader   map, in a precise position, the point of   section of the network or the map mark (29) that you have   defined, and that is provided to the calculator, camme coor-   reference data to calculate the new position   on the map, the stored coordinate values cor-   corresponding, so that the movable marker (4, 5)   the position corresponding to the position tive.   2. The process according to claim 1, wherein   characterized by causing a fixed marker (6) of the card reader to coincide with the point of intersection network or benchmark (29) defined.   3. The process according to claim 1, wherein   characterized in that a connecting element, fixed to the card and having a predetermined position relative to the point of intersection of the grating (29), is brought to coincide with a complementary element disposed in the card reader and that the we fix the map, thanks to this link, in the prescribed position.   4. Process according to claim 3, characterized   rised by inserting into the card reader a   transparent sheet (26) or the like,   affixing to the card, constituting a connecting member and provided with receiving holes (28) at a free end, such that tips (27) disposed in the card reader engage with the housing holes and fix the map.   5.- Method according to one of the claims   3 and 4, characterized in that the reference coordinates are affixed to the connecting element in the form of a code (30) and during or after insertion of the card a detector device (31) the card reader detects the code (30) and transmits the coordinates reference to the calculator.   6. Process according to any one of   Claims 1 to 5, characterized in that the   fixed mark by means of the mark Q1) which goes to a position   determined when the map sheet is changed, only the defined point of intersection (24) of the network on the map to be approximated with this position is brought, and then the marker (21) of the reader is moved. a map of the strokes + * \ x and + Ay in the coordinate directions, so that the marker (21) and the intersection point (24) of the lattice coincide and the tracking computer detects the necessary displacements ( + 8 x and + 6ny) and then takes into account when setting and tracking the mark (21).   7. A process according to claim 6, characterized   in order to take account of an inclined position   the card reader, the mark (located at 24) is moved in a prescribed coordinate direction (x), sufficiently (A s) so that a point located   - in the other direction of coordinates (y) in the prolongation   the mark and at a prescribed distance (1) from the fixed mark (21) coincides with the corresponding grating line (24b) passing through the defined point on the chart and that from that known length (1) and in the direction of chosen coordinates and the length + Cix or + Ésy, one determines the angle of inclination of the map according to the relation: ss tg of = l + x or + or according to the approximation t SK ls since t is small and queZ \ y <1, and this angle is taken into account in the calculation of   setting and tracking.   8. A process according to claim 6, characterized   in that in order to take account of an inclined position of the card in the card reader, the mark (located at 24) is moved in a prescribed coordinate direction (x), sufficiently (Zss) so that the dot (25) ') located at a prescribed distance (i') from the defined intersection point of network (24) in the other direction of coordinates is made to coincide with the extension of the reference in the x or y direction and that starting from the magnitudes 1 'and   s. the deflection angle is determined according to the relationship   tion: sin - = _ or according to the approximation W = Es 1 'and that this angle is taken into account in the calculation of the   setting and tracking.