DE1548539A1 - Method for determining the coordinates of a point located at an intersection of a grid field - Google Patents

Description

TEL E PUIKEI tverwertungsgesells

mb H.
Ulm (Danube), Elisabethenstrasse 3

Patentverwertungsgesellschaft λ mb H. '

Ulm (Danube), July 28, 1966 FE / PT - Ka / Eg - U 14-1 / 66

"Method for the determination of the coordinates of an in a crossing point of a grid field lying point

The invention "relates to a method for determining the coordinates of a point that represents any point of intersection of a grid field. In this procedure, the lines are and columns of the grid formed as mutually isolated lines and it is determined by an evaluation circuit, in which column line and in which row line when a voltage is applied at a crossing point a change in current or voltage is caused.

Such a method can be used, for example, the coding for a z. B, punched tape controlled machine, for example Drill press to create. The holes to be drilled must, however, be in the intersection points of a grid field lie. On a corresponding to the drilling grid, for example however, the smaller grid is successively attached to the

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Crossing points voltage placed, at the corresponding points in the drilling grid a hole is to be made. the Points to which voltage is to be applied can be created, for example, by projecting the drilling plan onto the corresponding device be marked. By means of the evaluation device is now determined at which grid point voltage was applied, so what coordinates this grid point has. This information is then stored in an information carrier that will later be used by the Machine controls, entered.

Compared to the known method for determining the coordinates, in which the coordinates are counted by a person are established, the method explained above brings a very great simplification «.

As the closest way to carry out the described procedure The galvanic coupling of voltages from the lines crossing each other at the corresponding points is an option. The arrangement used here would be constructed similarly to a cross line selector, in which a galvanic connection is established between the cable runs. In contrast to the cross line selector, however, the Coupling made at the intersection.

The galvanic coupling has the disadvantage that over a longer period of time

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In terms of time, perfect contact is made due to corrosion or the abrasion is in question with frequent contact. The object on which the invention is based is to avoid these disadvantages-

This object is achieved in that to achieve the current or Voltage change

a) either an electrode connected to a pole of a voltage source and located at the intersection juxtaposed with crossing cable runs' *., whereby a capacitive coupling is caused in the crossing lines or

b) one of the lines crossing at the point firmly opposite electrode is connected to one pole of a voltage source, whereby a capacitive coupling into the crossing lines will also call forth. '

The voltage or current change can be caused by charging and / or discharging the three-pole capacitors formed from the cables and electrodes be effected. During charging, a direct current is applied to the electrode opposite the cable runs.

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BATH ORIGINAL

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Voltage source applied. The charging causes a current surge in the crossing lines. To. Termination of The "triple capacitors" are charged at the individual crossing points when the DC voltage source is charged and switched off. They may need to be unloaded. Günatiger is 88 but one at the crossing points over the electrode Coupling in high frequency voltage. This high frequency voltage can be decoupled from the cable runs as long as the high-frequency voltage is effective at the crossing point.

The arrangement for carrying out the method according to the invention is advantageously designed so that the distance between the intersecting Lines to one another and also the distance between the electrode and the line runs is as small as possible during coupling. You can cross the lines of cables, for example, by two preferably perpendicular groups of running parallel, applied to a carrier made of insulating material Form cable runs. The carrier can also be flexible in accordance with known technology. A material with a high dielectric constant is favorably used as the insulating material. When using flexible cable carriers, the cable runs are advantageously embedded in the flexible cable carriers. However, it is also possible to produce the intersecting lines of conductors using thin-film technology.

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As mentioned above, the electrode can be applied to the individual Put on crossing points and in this way cause the coupling. In this case, however, is the coupling pressure between the electrode and the lines of the pad of the electrode as well as depending on whether the electrode is placed plane-parallel. A flawless realization of the Method according to the invention with an electrode to be placed on it calls for the reasons mentioned, a certain amount of effort. It has therefore also been proposed to place electrodes at the crossing points to be firmly arranged, and this for coupling with a To connect voltage source. In this case, the distance between the lines and the electrodes is always the same and there can also be no incorrect measurement due to different strengths The electrode is pressed on. The electrodes firmly attached to the crossing points are advantageously formed extensive, whereby the coupling between the electrode and the cable runs is increased. For example, you can use the Form electrodes as small plates, which are galvanically connected to the voltage source when coupled via a stylus will. The planar electrodes can be manufactured using the same technology as the cable runs, i.e. when using thin film technology, the electrodes also produced by the thin-film technology, while using a carrier for the groups of cable runs the one carrier also applies the electrodes at the same time.

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The coupling between the electrode and the two crossing each other Cable runs are different sizes because the distance between them Electrode and the individual cable runs are of different sizes. About the same size coupling between the electrode and "both To achieve line runs, the line that has the greater distance from the electrode is wider than the other line is formed. To protect the invention The overall arrangement can be arranged by means of an insulating material plate cover that only has openings at the crossing points of the cable runs. Also, the use of the Isolierstoffplatte still has the advantage that the placement of the connecting pen on the crossing points is facilitated.

In the drawing, the preferred arrangement for carrying out the method according to the invention is shown in FIGS. 1a and 1b. The two groups of cable runs which are perpendicular to one another and which are embedded in the carrier 1, which is assumed to be transparent, are denoted by 2 and 3. The cable runs 3 lying below are designed to be wider than the cable runs 2 lying above in order to achieve a coupling of the same size. The structure of the arrangement is shown in FIG. 1b, where a section along a line section 2 of the arrangement in FIG. 1 is shown. Fläohen-like electrodes 4 are applied at the crossing points of the lines 2 and 3. As already mentioned above, they are briefly connected to a voltage source.

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In FIG. 1b, the cover plate 5 is also drawn in, which has openings 6 which lie at the crossing points of the lines 2 and 5. It is assumed here that the line cables 2 and. 5 are embedded in an insulating carrier 1 and that the electrodes 4 are applied to the surface of this plastic carrier with a high dielectric constant. However, it is also possible to embed the cable runs 2 and 3 in separate insulating material carriers and then to apply the electrodes 4 to the insulating material carrier containing the cable runs. For the sake of simplicity, only four electrodes 4 are shown in FIG. 1a.

FIG. 2 shows an evaluation circuit, shown in simplified form, on the assumption that a high-frequency voltage is coupled in at the crossing points of the arrangement in FIG. From FIG. 2 it can be seen that by means of the switch 7, the before: G-Iied 8 is switched on periodically after the switch 9 is closed; the lines 10 are interrogated one after the other _; - The lines 10 should be connected to the ends of the cable runs 2. The switch 7 is switched on until it has a line

10 finds that has a voltage. The switch 7 is so switched on until the line with the. 3-1 e i honor i ent

11 is connected, in the corresponding line (Loitungszug 2) Voltage is coupled. In the threshold level 12 is determined whether the existing voltage exceeds a certain threshold

I ι

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BATH

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If this is the case, the element 12 causes the switch 7 to be shut down. At the terminal 13, information can be obtained about how many steps the switch 7 has taken to find the live line. Correspondingly, it is determined how many steps a switch has to carry out until it finds the column whose line run also has a correspondingly high voltage due to the coupling. Both pieces of information together give the position of the raster point. These. Information can be stored in the information carrier.

The arrangement proposed above for carrying out the inventive Process allows the production of any grid, which is not easily possible with galvanic coupling is.

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Claims (3)

- 9 - U 141/66 Claims 1 · Procedure for determining the coordinates of a point that represents any crossing point of a grid field, ■ where the rows and columns of the grid are considered to be isolated from each other Line runs are formed and in which it is determined by an evaluation circuit in which column lines «. train und.Lin which row line train when a voltage is applied caused a current or voltage change at a crossing point is, characterized in that to achieve the current or voltage change a) either an electrode connected to a pole of a voltage source and located at the crossing point crossing lines of cables is compared, creating a capacitive coupling into the crossing line runs is caused, or "b) an electrode with the one pole of a voltage source is connected, creating a capacitive coupling into the itself crossing line runs is caused. - 10 - 0098 17/0052 - 10 - U 141/66 2..Verfahren according to claim 1, characterized in that about the electrode a high frequency voltage in the intersecting cables are coupled. 5. The method according to claim 1, characterized in that for Generation of a current or voltage change in the line c trains the charging and / or discharging of the from the cable trains and Three-pole capacitors formed by electrodes are used, 4. Arrangement for performing the method according to one of the claims 1 to 3, characterized in that the points at the intersection fixed electrodes formed fläohenhaft out Electrodes are briefly connected to the voltage source get connected , 5. Arrangement according to claim 4 or for the implementation of the driving according to one of claims 1 to 3 »characterized in that that the intersecting cable runs through two preferably perpendicular groups of parallel, are formed on a preferably flexible carrier made of insulating material applied cable runs, 6. Arrangement according to claim 5> characterized in that on the layer of insulating material covering the flat cables the planar electrodes are firmly applied - 11 009817/0052 - 11 - U 141/66 7. Arrangement naoh one of claims 1 to 6, characterized in that that a material with a high dielectric constant is used as the insulating material, in which the cable runs are embedded are. 8. Arrangement for carrying out the method according to one of the Claims 1 to 3 or arrangement according to Claim 4 »characterized in that that the crossing lines and possibly also the fixed electrodes according to the type of Thin film technology are made. 9. Arrangement according to one of claims 4 to 8, characterized in that that in order to achieve a coupling of approximately the same size on both lines, the one in the one of the electrode is larger Line runs having spaced plane lying wider than the other line runs are formed. 10. Arrangement according to one of claims 4 to 9, characterized in that that it is covered with a sheet of insulating material, the openings only at the crossing points of the cable runs having, 11, The application of the method according to any one of claims 1 to - 12 Q 0 9 8 1 7 / U 0 5 2 - 12 - U 141/66 3 or the arrangement according to one of claims 4 "to 10 for programming a machine that must control certain points in a corresponding grid, in such a way that voltage is applied to the points to be controlled by the machine one after the other across the electrode, so that the position of the point in the Auswerteinriohtung is determined and that this location in the information carrier z. B, is stored in a punched tape 0098 ■: 7/0 052