FR91758E - - Google Patents

Description

FRENCH REPUBLIC

1ST ADDITION

MINISTRY OF INDUSTRY FOR THE PATENT OF INVENTION

INDUSTRIAL PROPERTY SERVICE

No. 1.457.317

P.V. n ° 21.780 International Classification î

N ° 91.758 G 05 b // B 611

Servo-control and motion control device.

Mr. Pierre, René HAAS aka ROLLE residing in France (Seine).

[Main patent issued May 25, 1965.)

Requested on June 22, 1965, at 3:15 p.m., in Paris.

Issued by decree of July 1, 1968.

{Official Bulletin of Industrial Property, No. 32 of August 9, 1968.)

{Certificate of addition the issue of which has been postponed pursuant to article 11, § 7, of the law of 5 July 1844 amended by the law of 7 April 1902.)

The object of this addition is to make additional provisions concerning elements included in the patent application> P.V. 18.239, filed May 25, 1965.

These provisions can be applied, in particular, but without limitation, to the automatic control and command of the running of mobile machinery which normally has no material contact with the ground when they are in motion.

Similar operating conditions make it impossible to generate signals controlled by running gear. It is therefore important that the latter be replaced by means transmitting to the on-board equipment the necessary information relating to the speed and the distance traveled.

According to the arrangements which will be described below, the information considered results from the influence that means affecting the very general shape of slots and placed in a fixed manner on the ground, exert on the means carried by the mobile device, so that the movement of the latter generates in the on-board equipment, current pulses whose frequency is proportional to the speed of the moving body and the number proportional to the distance traveled.

. The means carried by the mobile device are advantageously constituted by the coupling elements of a radio frequency generator, so that the passage of these mobile means in front of the fixed means, in the general form of slots and made of a conductive material, causes a succession of intermittent stalls, of the aforementioned oscillations.

8 210548 7

The means carried by the mobile device. Can also be constituted by elements .respectively connected to a radio frequency generator and to a corresponding receiver, so that the crossing of the fixed means causes a succession of couplings and decouplings between the generator and the (considered receiver.

It is obvious that any combination of the above arrangements and the number of means can be effected according to the desired results.

In the appended drawing, given by way of example, the various figures represent respectively, in a stehematic form:

FIGS. 1 and 2, fixed means and mobile means whose modification of the relative positions determines by alternations the successive coupling and decoupling of a radio frequency generator, with two appropriate amplifiers;

FIG. 3, a general arrangement corresponding to that of FIGS. 1 and 2, in which, however, two mobile means influenced by the fixed means provide the coupling necessary for the generation and maintenance of radio frequency oscillations and are, for this reason effect, each connected respectively to an HF generator, itself connected continuously to an appropriate amplifier;

FIG. 4, pilot relays corresponding to those indicated in FIG. 1 of the main patent application to which the present addition is attached; this FIG. 4 making it possible to better specify the switching performed by the aforementioned relays.

In FIG. 1, the coupling pads PF are fixed to the ground by means of the base SF. These

[91.758 / 1.457.317] -

studs are simple metal plates, the dimensions of which are conditioned by those of the elements of the mobile device and the desired use.

The equipment of the mobile machine includes the OMZ radio frequency generator, as well as the corresponding amplifiers AD1 and AD2. The OMZ generator is connected by a shielded line, to each of two free ends COI and C02. A similar arrangement is adopted for amplifier AD1 and end CA1, as well as for amplifier AD2 and end CA2, respectively.

The arrangement of the shields of the aforementioned lines prohibits any direct coupling between the free ends thereof. On the contrary, the metallic surface of a pad PF produces a capacitive coupling between the ends COI and CA1, C02 and CA2, respectively, when the fixed means and the mobile means considered are opposite. In addition, these means are arranged such that at least one of the two amplifiers AD1 and AD2 is coupled to the OMZ generator, regardless of the position of the mobile machine relative to the fixed elements.

Under these conditions, if the device is stationary, at least one of the two aforementioned amplifiers transmits a direct current, but as soon as this device is in motion, said amplifiers transmit current pulses which result from the intermittence of the coupling caused. by the fixed pads, the frequency of which is proportional to the speed of the moving body, their number being proportional to the distance traveled.

The information signals thus generated are identical to those generated by the generator AX2 indicated in the main patent application and produce the same effects on the on-board equipment, without requiring any material contact with the ground.

In FIG. 2, the OMZ generator and the amplifiers AD1 and AD2 are identical to those shown in FIG. 1; the modifications relate only to the location of the free line ends C01-CA1 and C02-CA2, each of these groups being, in FIG. 2, arranged on a plane transverse to the direction of movement of the mobile.

In the example given by FIG. 3, the amplifiers AD1 and AD2 are each supplied, respectively, by the microwave frequency generators OM1 and 0M2, the coupling elements necessary for the production of the current in question, respectively bear the references OGl and 0G2.

The fixed pads PF are simple conductive surfaces either electrically connected to the ground or isolated from the latter without the operation of the device being modified; the base SF can therefore be formed by the ground itself.

The arrangement and the dimensions of the fixed means and of the mobile means are provided such that placing a PF pad and coupling elements (OG1 or 0G2) opposite each other interrupts the production of the current which supplies the corresponding amplifier, but that at least one of the amplifiers AD1 and AD2 is always supplied, whatever the position of the mobile means relative to the fixed means.

Under these conditions, as long as the machine is stationary, at least one of the amplifiers transmits a direct current and, as soon as this machine is in motion, the crossing of the fixed pads causes intermittent operation of each of the OM1 and 0M2 generators. , thus determining the transmission of pulses to the corresponding amplifiers. As previously, the frequency and the number of pulses are respectively proportional to the speed of the moving body and to the distance traveled by the latter; the information signals are therefore, in this example also, identical to those generated by the generator AX2 of the main patent application and the effects produced are the same, without requiring any more material contact with the ground.

In the majority of practical applications, the embodiment indicated last has advantages, in particular in terms of completely unconditional security.

It will also be noted that the combination of the two modes described above, the placing in series of the switching means depending on each of these and the suitable arrangement of the different coupling elements, make it possible to obtain an automatic shutdown trigger. , in the case of any defect affecting the beaconing and even of the disappearance of the latter, since one of the modes considered requires the presence of a metal surface for the production of a signal, while the other mode cannot on the contrary, produce a signal only in the absence of a metallic surface.

It is understood that the examples given above, in schematic form, are in no way limiting and all appropriate shapes and arrangements may be determined according to the applications.

The radio frequencies used as information signal will be favorably modulated at lower frequencies, in order to make any parasitic influence practically impossible.

Among the advantages presented by this device for generating information signals on the speed and the distance traveled, the application of the latter, at least partially, to vehicles provided with running gear, makes it possible to obviate to the drawbacks resulting, for the transmission of certain information, from the engagement, slippage or wear of said running gear.

It will also be noted that from the base formed by the signals considered, by combining it with the means described in the main patent application, it is possible to establish codings integrating the pulse or absence times. neck

rant at the output of amplifiers AD1 and AD2, favorable arrangement when the pulses are transmitted at very low frequency.

It is obvious that the effects of a crenellated screen can be produced on photo-conditioning means, but it is equally obvious that these means cannot, in practice, be made 'insensitive to the consequences of bad weather, projections. sludge and dust, as are the elements constituting the .dispositif .described above.

This description of the additional arrangements will be completed with reference to FIG. 4, in which there is once again shown, with all the references of the connections, the pilot relays included in FIG. 1 of the main patent application, at the exception of the CZ relay, the latter not being affected by the following indications.

In this figure 4, the number of contacts has been increased to three for the T relay, four for the RAMT relay and two for the ZC relay, in order to better specify that information supplying the ZC relay cannot cause any re-energization, but only to maintain relays still energized when this information is transmitted.

The connection of the lower winding of each of the different relays to the current source B is controlled as follows:

Relays NX1 and NX2, by contact 1 of relay RAMT or contact 1 of relay ZC;

Relay ZI to Z6, via contact 3 of the RAMT relay;

Relay T, by contact 1 of this relay and, then, contact 1 of relay RAMT or contact 1 of relay ZC;

Relays Cl and C3 to C6, by contact 2 of relay T and contact 2 of relay RAMT or contact 2 of relay ZC;

RN relay, by contact 1 of this relay and then either by contact 2 of relay T and contact 2 of relay RAMT, or by contact 2 of relay ZC.

Channel AC2 is connected to the upper winding of relay RN by contact 4 of relay RAMT or contact 3 of relay T and, then, contact 2 of relay RN itself.

The above indications, relating to the switching operations carried out by the pilot relays, clearly specify that the contacts of the ZC relay only have an effect on the so-called "holding" lower windings, in accordance with the arrangement described in the application. of main patent and recalled by the relays RN and T in the present figure 4. Thus, the closing

3 - [91.758 / 1.457.317]

metering of the contacts considered cannot therefore cause any re-excitation.

abstract

The object of this addition is to make additional provisions concerning elements included in the main patent application. These provisions are remarkable in particular by the following characteristics considered separately and in any combination:

1 ° Fixed means installed on the path of a mobile machine with a predetermined route affect the general shape of a crenellated screen, in order to act on the means included in the equipment ■ of said machine, by controlling current pulses the frequency of which is proportional to the speed and the number proportional to the distance traveled, thus providing the equipment of the mobile vehicle with all the useful information concerning the movement, without requiring material contact with the ground;

2 ° The fixed means according to 1 ° are constituted by simple plates of conductive material, the electrical connection of which with the ground has no influence on the operation;

3 ° The means carried by the mobile device, according to 1 °, are constituted by the coupling elements of a radio frequency generator, so that the passage of these mobile means in front of the fixed means causes a succession of intermittent stalls of the Hertzian frequency oscillators;

4 ° The means carried by the mobile device, according to 1 °, are constituted by elements respectively connected to a radio frequency generator and to a corresponding receiver, so that the movement of the mobile device causes a sucœssion of couplings and of decouplings between the generator and the receiver considered;

5 ° The equipment of the mobile machine comprises at least two groups of means on which the fixed means act according to 1 ° and arranged so that at least one of the groups considered determines the production of a current in the equipment on board, regardless of the position of the mobile device relative to said fixed means.

Pierre, René HAAS aka ROLLE

Vicarious :

P. Letheule

For the sale of the booklets, contact the National Imfrimerie, 27, rue de la Convention, Paris (15 *) »