WO1980002209A1

WO1980002209A1 - Process for providing a guiding device on predetermined paths and device so obtained

Info

Publication number: WO1980002209A1
Application number: PCT/FR1980/000056
Authority: WO
Inventors: G Brandely; P Nony
Original assignee: G Brandely; P Nony
Priority date: 1979-04-12
Filing date: 1980-04-11
Publication date: 1980-10-16
Also published as: EP0026776A1; FR2493011A1

Abstract

Process for providing a device for guiding a person along a predetermined path; on locations distributed along the path are recorded, on an appropriate stand, indications characterising the aspect of each of these locations as they are perceived by a person following that path, as well as other indications as to the direction to take in that location and all other useful information, so as to form a combination of coordinated records which are usable in the successive rank of order to recognise and follow that path; application to all modes of information, visual and (or) sound information.

Description

Method for producing a guidance device on predetermined routes and device thus obtained

The invention relates to guiding people moving to. on foot or by vehicle, on predetermined routes. A pedestrian wishing to go from one point to another in an unknown city (especially if he does not know the language), a motorist having to move in the suburbs of a big city or else take a interchange or choose an outing highway, an excursionist wishing to follow on foot or by bicycle (for example in the forest) an unmarked route, an athlete wishing to take part in a regatta, a boater navigator wishing to follow a coπplicated channel, etc ... currently do not have as a means guide as plans, maps and descriptive notices. It is enough to have practiced these exercises to realize that it is very easy to get lost. In addition, any modification of the road network, which occurs frequently in the suburbs, means that maps and plans have to be redone entirely. Finally, permanent safety indications such as, for example, frequent ice, risk of landslides, etc. are generally not observed.

The essential object of the invention is the production of a guidance device making it possible to easily follow a predetermined route without having to. consult neither map nor map and can be easily updated to take into account changes in the road network.

Another object is to allow the production of a guidance device comprising the possibility of informing the driver of a vehicle of an alteration liable to occur under the conditions of the journey. In accordance with the present invention, in order to produce the guiding device, indicatioris characterizing the appearance of each of these places as they appear to a person are recorded on a suitable support, at locations staggered along the route. along the route, as well as indications on the direction to take in this place and all other useful information, all so as to form a combination of coordinated records which can be used in their order of succession to recognize and navigate the route.

Registration can be done in various ways. In one embodiment, photographic or drawn views are taken at points staggered on the route and are provided with indications, these points and these indications being chosen so as to designate the route clearly and unambiguously on each view. As far as possible, the points of view are preferably chosen so as to encompass easily identifiable elements or configurations of the environment. In another embodiment, the views are systematically taken from regularly spaced points on the route, and the series of views forms an uninterrupted film; the user guides himself on the route by projecting it or examining it in a viewer; at least some of the views have indications which designate the route clearly and unambiguously.

The views may include in particular one or more of the following indicatioxis: - inscriptions such as conventional signs (for example arrows) indicating, on the view, the direction to follow, the distance from the point of the route from which it is taken the next view of the series, or the direction of a signal (for example the location of a buoy, a beacon or a bitter),

- location elements that are part of the environment, such as a direction sign or a plaque bearing the name of a street,

- the presence and / or attitude of a mobile guide (person or vehicle) carrying a distinctive sign enabling it to be identified without error.

The views can also peddle conventional signs designating remarkable sites or constructions, tourist curiosities, etc., which facilitate the comparison of the view and the real landscape.

The views may be supplemented by written or recorded texts, which add to the indications given on these views other indications relating for example to elements of the route not visible, or to alterations, for example seasonal, likely to affect route conditions. But the views can also be replaced entirely or partially by descriptive texts of the staggered points of the route which can be printed and projected calm the views, or be recorded and reproduced by audio as the course of the course route.

In one embodiment of the invention, the series of visual documents forms a bundle and the series of sound recordings forms a magnetic tape; the user is given this bundle and / or this strip. In this embodiment, each visual document or each record concerts an indication making it possible to go to the next point of view or hearing point (for example a distance, as explained above, or the presence of 'a mobile guide, from this point of view, in the case of a series of views), This embodiment is particularly suitable for a user moving on foot. In another embodiment of the invention, more usable in a vehicle, the series of visual documents forms an uninterrupted film and the guidance device comprises a projection device or a viewer driven at a speed proportional to the speed of the vehicle, for example by mechanical connection with the flexible transmission cable used to drive the distance counter; while the series of sound recordings is made on a magnetic cassette known per se, this cassette being placed in a cassette player, known per se, put into service for a time determined by a timed switch, at time intervals of duration inversely proportional to the speed of the vehicle, for example by means of a cam connected to the flexible transmission cable used to drive the speedometer.

In still other embodiments, which can also be used in a vehicle, a series of visual documents and / or a tape of sound recordings are placed in the magazine of an apparatus which exposes the visual documents to the eye and / or triggers the playback of sound recordings successively, as the vehicle reaches their respective views and hearing, either under the action of a mechanism actuated by a transmission cable used for. drive an odometer, either under the action of signals from outside the vehicle or transmitted according to a program established in advance according to the distance traveled by the vehicle. Specific external signals can cause the appearance of particular visual or audio documents indicating the presence of alterations likely to occur in the conditions of the course, such as "traffic jam", ice, etc.

The description which follows, with reference to the appended drawings, given by way of nonlimiting examples, will make it possible to understand the advantages of the invention and the art of making it, all the particularities which emerge both from the figures and from the reentering text. , of course, in the context of said invention.

Figures 1, la and lb show views forming part of a bundle intended to guide pedestrians on a city route. Figures 2, 2a and 2b show views forming part of a series of views intended to guide a cyclist, a motorist or a motorcyclist on a country route.

Figures 3, 3a, 3b, 3 £ and 3d show views which are part of a series of views intended to guide motorists on a suburban route.

Figure 3 'reproduces the text written on a card or recorded • on a magnetic support and intended to replace the view of Figure 3. Figure 3'd reproduces the text written on a card or recorded on a magnetic support and intended to complete the 3d view.

Figure 3'e_ represents a sheet intended to warn the user of a traffic hazard.

FIG. 4 represents an apparatus intended to present successively to a motorist visual documents such as those corresponding to FIGS. 3, 3a, 3b, 3c, 3d, 3 ', 3'd, 3'e and / or to broadcast sound recordings whose contents are texts such as those reproduced in Figures 3 ', 3'd, 3'e, the apparatus being seen in section along the line IV-IV of Figure 5, Figure 5 is a sectional view along line VV of FIG. 4.

Figure 6 is a sectional view along line VI-VI of Figure 5.

FIG. 7 represents a projection apparatus driven at a speed proportional to that of a vehicle, the apparatus being seen in elevation along arrow VII of FIG. 8, with partial section of the drive mechanism.

Figure 8 is a sectional view along line VIII-VIII of Figure 7.

FIG. 9 represents an apparatus intended to present visually, in response to signals, visual documents such as those of FIGS. 3, 3a, 3b, 3c, 3d, 3 ', 3'd, 3'e and / or to broadcast sound recordings whose contents are texts such as those reproduced in Figures 3 ', 3'd, 3'e, the apparatus being seen in section along the line IX-IX of Figure 10.

Figure 10 is a sectional view along line XX of Figure 9. Figure 11 shows schematically a player for transmitting, in response to signals, audio instructions corresponding to recordings such as those contained in Figures 3 ' , 3'd, 3'e.

We see in Figures 1, 1a and 1b three successive images of a character 1 who moves through the streets of a city following a certain route and who represents the user. These three images are part of a bundle of views (not shown as a whole) which will be given to a user wishing to follow the itinerary. In the embodiment shown, the character 1 is remarkable for his hairstyle or any other distinctive sign making it possible to easily identify the character in the traffic possibly represented in the images.

Figure 1 indicates to the user that he will find, shortly after a characteristic building designated by a conventional sign 2 (in this case a star), a crossroads whose location is specified by the position of character 1, and the arrow 3 indicates the street he should take. The figure at the bottom right of the view indicates that the user will then have to travel 40 meters to reach the position occupied by the character in, figure la. In this figure, the attitude of the character clearly indicates that the user will have to take the second street on the right. FIG. 1b is a view taken from the location occupied by character 1 in FIG. 1a and the attitude of this character in FIG. 1b clearly indicates that the user will have to take a left, immediately after a zebra crossing 4 and at near a characteristic monument designated by the sign 5, a street whose name appears on a plate 6. The figure at the bottom right of Figure 1b indicates that the user will have to walk 30 meters to reach the location occupied by the character on the next view (not shown) and so on. The user will thus be guided from sight to sight, clearly and unambiguously, to his destination. It is therefore understood that the invention makes it possible in particular to easily guide tourists, visiting a foreign city, from their hotel to the main curiosities of the city.

FIGS. 2, 2a and 2b show how it is possible to guide a user on a route by means of a series of sketches as the crow flies or of photographs taken for example from a helicopter, these sketches or photographs not bearing indications that conventional signs (in this case arrows) and locating elements forming part of the environment. The views of Figures 2, 2a and 2b are part of a series whose other views are not shown. In FIG. 2, the user sees by the arrow 7 that he must turn right at a crossroads designated by a red light 8 and an indicator panel 9. In the following view 2a, he sees that he must then continue all right (arrows 10, 10a and 10b) at a crossroads designated by a tree 11 and a sign 12,. In the next view 2b, he sees by arrows 13 that he must turn left at a place designated by a stop of bus 13a. Figures 3, 3a, 3b, 3c and 3d show how a motorist can be guided on a suburban route by successive images of a remarkable vehicle 14 represented at characteristic points of this route. The motorist understands without hesitation that he must follow the image of the vehicle 14 which, in FIG. 3, leaves the peripheral boulevard 15 to engage on the highway designated by the panel 16. In FIG. 3a, the motorist must follow the guide vehicle 14 which does not take the right branch of the highway designated by the panel 17, but continues on the main branch designated by the panel 18, In Figure 3b, the motorist notes that the guide vehicle 14 rolls on the right lane of the highway and the arrow 13-shows that it will take the next exit designated by panel 20. Figure 3c confirms that the guide vehicle 14 takes this exit, and panel 21 indicates that the highway stops there. Figure 3d shows that at the place indicated by the "stop" panel 22 and the indicator panels 23, the guide vehicle 14 has taken the left road and that it is therefore necessary to take this road and so on.

It can be seen from FIGS. 3, 3a, 3b that the following method the invention makes it possible to warn a motorist, moving on a motorway or a peripheral boulevard, of the direction which he must take, sufficiently in advance to enable him to place himself, quickly and without haste, on the suitable queue and thus avoid the risk of accident. Likewise, it can be seen in FIG. 3 ′ that the method according to the invention makes it possible to warn a motorist of the presence of a temporary deterioration in circulation. The invention therefore makes it possible to improve traffic safety.

To eliminate any ambiguity in determining the route, one could have written on each of the views of Figures 3 to 3d, or include in the text intended to replace them, the mention of the distance to be traveled to the point from where the following view was taken, but in the embodiment shown, the visual documents are placed in the magazine 24 and / or the sound recordings in the reader 60 of the apparatus of FIGS. 4 to 6 which, respectively, expose them to the look of the user and / or makes them hear to the user, as the vehicle of the latter reaches their respective points of view.

This device comprises a housing 25, in which is mounted for rotation a drum 24a provided at its periphery with a plurality of axes 24b parallel to its axis of rotation and regularly spaced angularly. On these axes 24b are articulated the visual documents corresponding respectively to Figures 3 or 3 ', 3a, 3b, 3c 3d, 3'd, which are here respectively designated by the references 26, 26a, 26b, 26c, 26d and a number other visual documents which complete the definition of the route. The drum 24a and its axes 24b thus form the. device store 24.

A drive shaft 27, parallel to the drum 24a, is also rotatably mounted in the housing 25. This shaft 27 can be driven on one side by a knurled button 28 and on the other side by a mechanism 29, which will be described further and is connected to the shaft 24c of the drum 24a. by a friction transmission (pulleys 27a, 24d and belt 30), On the control shaft 27 is keyed a cam drum 31 provided with a plurality of bosses such as 31a, 31b, 31c, 31d, 31e distributed over circular pistas such as 32, 32a each located opposite a retaining lever such as 33, 33a whose upper end is pivotally mounted at 34 in the housing 25 whose lower end carries a hook 35. Each of the visual documents such as 26a is provided at its outer edge with a tab such as 36, 36a which, during the rotation of the drum 24a, is placed facing at least one of the levers such as 33, 33a, the hook 35 of which comes then enter a hole 37 in this tab. It can thus be seen, in FIG. 5, that the tab 36a of the visual document 26n can be placed facing the lever 33a, while the tab 36 of the visual document 26a is, in the position shown, facing the two levers 33 and 33a, the hooks 35 of which are engaged respectively in two holes 37 of this tab 36, During the rotation of the cam drum 31, the bosses such as 31a come to bear successively against the levers such as 33, thus doing successively rotate these clockwise.

The mechanism 29 is a gear mechanism, the input shaft 29a of which can be driven in rotation by a flexible power cable 38, itself driven at a speed proportional to that of the drive wheels of the vehicle (not shown) in which is installed the device, like the odometer drive cable, The connection between the gear mechanism 29 and the flexible cable 38 is shown uncoupled in Figure 5, but the threaded end ring 38a of the cable flexible is normally screwed onto the threaded connection 29b of the mechanism, so that when the vehicle is moving the flexible cable 38 rotates the input shaft 29a of this mechanism 29, which rotates the shaft 27 and the latter ci drives the drum 24a in rotation through the friction transmission 27a-30-24d.

The drum 24a thus brings, one after the other, the visual documents such as 26, in a vertical position in which their tab, such as 36, is locked by one or more levers such as 33, 33a, the one or more hooks 35 are engaged in the hole or holes 37 of the tab. In this way, the rotation of the drum 24a is interrupted, the belt 30 slipping, until this or these levers are actuated by the corresponding boss or bosses of the cam drum. The drum 24a of the magazine then resumes its rotation, thus releasing the visual document such as 26a which hitherto was blocked outside the projection field of a lamp 40, as will be explained below. The document, released, falls by pivoting about its axis 24d and is stopped in a horizontal position by the branch opposite a stop device ro tative 39 in the form of a swastika, pivotally mounted about an axis 39a parallel to the axis 24c of the drum. It is understood, in Figure 4, that the visual document 26a, falling, will rotate the stop device 39 by a quarter of a turn, thereby releasing the visual document 26 which until then was locked in a horizontal position. The document 26 then falls into the vertical position previously occupied by the visual document 26n, while the document 26a is now locked against the stop 39, in the horizontal position. It is also understood that the rotation of the stop 39, by acting on the timed interrupteixr 61, by means of the pusher 62, will put a cassette player 60 into service for a predetermined time at least equal to the duration of the longest recording. from the Serie. The user will thus hear the recording corresponding to view 26a, placed horizontally.

In the embodiment shown, the visual documents are assumed to be transparent (for example slide photographs), and the visual document in a horizontal position (the visual document 26 in FIG. 4) is illuminated transparently by a lamp 40; its image, reflected on a mirror 41, is observed by the user through a magnifying optic 42. The electric lamp 40 is advantageously supplied with electric current each time a visual document falls in a horizontal position, in order to attract the attention of the user, and then turns off after a predetermined period of time. The means not shown may include a timed switch, known per se, actuated by the rotary stop 39. The flexible cable 38 is driven by the wheels of the vehicle not shown, with a reduction ratio such that the cam drum 31 rotates very slowly. , for example that it makes a complete revolution each time the vehicle travels 600 meters. It is thus possible to choose the arrangement of the bosses such as 31a and that of the tabs such as 36, so that the visual documents fall successively in the horizontal examination position (position occupied by the visual document 26 in FIG. 4) as the vehicle reaches their views. For example, in the arrangement shown, the bosses 31a and 31d will soon actuate the retaining levers 33 and 33a simultaneously, thereby releasing the visual document 26a.

It can be seen that by the play of the stop device 35, 37 and the friction drive 27a, 30, 24d, the device described makes it possible to combine a continuous drive proportional to the movement of the vehicle with a displacement of the views step by step, so that each view can be examined for a sufficient time. The driver of the vehicle will himself have to limit the speed of his vehicle to be able to read each view and compare it to the real landscape.

As shown in FIG. 6, one of the pinions of the mechanism 29, designated by the reference 43, is mounted on a lever 44, articulated around the axis of rotation 45a of one of the pinions 45, with which it meshes, and recalled by a spring 46 to a position in which the pinion 43 is engaged with the other pinion 47, with which it meshes. It therefore suffices to actuate the lever 44 against the action of the spring. 46 to decouple the shaft 27 from the flexible cable 38, which makes it possible, to zero the device or in the event of incorrect adjustment of the 'apparatus, to rotate the shaft 31 by hand by means of the knurled button 28, in order to present the visual document which has been produced at the location where the vehicle is located. Likewise, to reset the series of sound recorders to zero, or to reset it to the place where it must be if the device had gone out of adjustment, this operation would be carried out by an independent controller (the one known per se as commander cassette players for example),

Figures 7 and 8 illustrate a device usable for guiding a motorist by film and / or by recorded cassette. A projection device similar to a cinematographic projection device, shown diagrammatically at 48, is actuated by a mechanism 29 ′, analogous to the mechanism 29 in FIGS. 5 and 6, driven by a flexible transmission cable 38 ′ similar to that in FIG. 5, to. a speed proportional to that of the drive wheels of the vehicle not shown. The output shaft 29 'c of this mechanism 29' is coupled at 49 to the input shaft 48a, the rotation of which controls the movement, in the projection apparatus 48, of a film carrying a series of documents visuals corresponding to. regularly spaced points on the route. Marie, the recording reader 60 ′ is activated by a timer 61 ′, for example by means of contacts distributed over the film, each time the film arrives in a position where a visual document is going to be projected or even each that the shaft 48a has made a predetermined number of turns or a predetermined fraction of a turn. The shots were taken at regular points spaced along the route by means of a camera detached from its motor and driven by a mechanism identical to the mechanism 29 '. Thus, each group of views corresponding to a point on the route can be projected when the vehicle is in the place from which it was taken. Also, the hearing of the corresponding sound recording can take place, alone or associated with the projection of the image, when the vehicle is in exactly the same place. It suffices for this that the film and the recording medium are placed respectively in the projection apparatus and in the sound recording player at a starting point of the vehicle fixed in advance. The lever 44 ′ allows, as in the embodiment of FIG. 6, to possibly correct the adjustment of the device.

Also, to reset the series of sound recorders to zero or to reset it to where it should be if the device had gone out of adjustment, this adjustment would be made by an independent command (the one known per se controlling the cassette players for example),

Visual documents can be projected on the dashboard of the vehicle.

In the case where the vehicle driver is accompanied by a passenger who can guide him, the projection device 48 can be replaced by a viewer driven by the mechanism 29 ′ and allowing the passenger to directly observe the images of the film. It should be understood that in the foregoing, the terms

"cinematographic projection device" does not mean a device subject to an imposed image projection rate. Rather, it is a device specific to. scroll in front of the observer of successive views of a determined point on the route, taken on a film pool.

But to produce a true cinematographic projection of images photographed at. the cinematic rate, one can use, both at the shooting than at the projection, a camera moved by its engine, it is enough for that to associate with the push button of release of the engine of the camera a cam moved in proportion to the displacement of the vehicle, like the cam 31 in FIG. 4. By its bosses, of which the intervals will be proportional to the distances between the successive points of view, this cam will actuate the pusher the trigger of the camera engine for a period of time, a few seconds for example, sufficient to realize or project a characteristic cinametographic sequence.

In the embodiment of FIGS. 9 and 10, in which the elements playing the role that in FIGS. 4 and 6 are designated by the reference numeral pools with the sign "prime", the axis 24'c of the rotary drum 24'a is coupled to a "step-by-step" electric motor 50, known per se, which rotates by a predetermined angle α each time it receives an electric current pulse triggered by a relay, shown diagrammatically at 51 , when the latter receives a signal. The successive visual documents 26 ', 26'a, 26'b etc of a series of visual documents defining a route are articulated respective to the successive axes 24'b and the predetermined angle α is equal to. the angular difference between two adjacent axes 24'b. In this embodiment, the stop 39 ′ triggers, by its rotation, the hearing of the corm sound recordings described with reference to FIGS. 4, 5, 6.

The device is initially set in the arrangement shown, in which the first visual document 26 'is retained in a horizontal position by the rotary stop 39' and is illuminated transparently by the lamp 40 'and observed through the magnifying optics 42 'in reflection on the mirror 41', and the following visual document is retained in a vertical position by its outer edge in abutment against a fixed retaining member 33 ', When the relay 51 receives the first signal, the "stepping motor" step "50 rotates the drum 24 'a by the angle α, so that the visual document 26' a. escapes from the retaining member 33 ′ and takes the place of the visual document 26 ′, horn it has been explained with reference to FIG. 4. When the relay 51 receives the second signal, it is the visual document 26 ′ b which comes in a horizontal position on the rotary stop 39 ', and so on.

In the embodiment of FIG. 11, the guidance is done only by hearing the sound recordings; the relay 51 'receiving the external signals activates, through a terrrporisation 61' '' the recording reader 60 '' '.

In the embodiments of FIGS. 9, 10 and 11, the signals controlling the relay 51 or 51 ′ are transmitted each time the vehicle fitted with the device passes at a point where a visual document or an audio document from the series has been produced, so that the driver is guided from point to point throughout the route.

In an embodiment usable in particular for guiding vehicles equipped with an apparatus according to FIGS. 9, 10, 11, the signals are transmitted according to a program established in advance, as a function of the distance traveled by the vehicle, by a device installed on board the vehicle. They can, for example, result from the closing of an electrical contact controlled by a cam rotating at a speed proportional to that of the vehicle and carrying staggered bosses such as the views or the points corresponding to the sound recordings.

In another embodiment, usable in particular for guiding vehicles on an alternate route in the event of congestion on a main route, the signals are emitted by beacons arranged at the shooting points staggered along the route of clearance, these beacons emitting for example radio, infrared or ultrasonic beams transversely to the road.

In another embodiment, the signals are emitted in particular circumstances requiring a reaction from the driver, such as accident, traffic jam, flood, ice, fog, etc. These signals are sent by a series of pulses received by the stepping motor, the appearance of a specific record or the hearing of a specific sound recording indicating the attitude to adopt. The specific sheets and records are contained in a device such as that shown in Figures 9, 10, 11 and reserved for this purpose, or are located in reserved locations of stores containing the sheets and guide records themselves.

It goes without saying that the embodiments described are only examples and that they could be modified, in particular by substitution of technical equivalents, without departing from the scope of the invention. In particular, in FIGS. 4 and 9, the coming into observation of a new visual document can be signaled to the attention of the user by a temporary lighting of the lamp 40 or 40 ′, as explained in look at Figure 4, or if the lairpe 40, 40 'remains permanently on, either by a temporary increase in the brightness of this lamp, or by a sound signal possibly emitted by a recording of the series of sound recordings. Likewise, the transparent visual documents could be replaced by opaque documents illuminated by reflection. Nor would it be departing from the scope of the invention to replace the cam drum 31 of FIGS. 4 and 5 by a series of circular cams driven at staggered speeds by a transmission similar to that which drives the counting wheels of a odometer. In addition, it would not go beyond the scope of the invention to replace the cassette and its player by any other known method of recording and reproducing sound, or even by recording visual documents on a magnetic tape thanks to. a video recorder known per se, and by presenting them to the user on a cathode-ray screen, or even by making sound recordings on a support linked to the visual document like the sound system for slides developed by the Company 3 M,

Claims

REVEN DICATIONS

1. A method of making a device for guiding a person on a predetermined route, characterized in that in locations staggered along the route, indications characterizing the appearance are recorded of each of these places as they appear to a person on the route, as well as indications on the direction to take there and all other useful information, all so as to form a Combination of coordinated records which can be used in their order of succession to recognize and navigate the route.

2. Method according to claim 1, characterized in that the recordings are made, at least in part, by photographic means or by drawing, so as to form a combination of coordinated images usable in their order of succession.

3. Method according to claim 2, characterized in that the successive photographic views are taken on a film.

4. Method according to claim 1, characterized in that the recorded indications are, at least in part, in the form of descriptive texts written on cards which correspond to irrrportant and successive points of the route.

5. Method according to claim 1, characterized in that the recorded indications are, at least in part, in sound form.

6. Method according to one of the preceding claims, characterized in that some of the visual or sound recordings include indications relating to an alteration of conditions of the route, such as traffic jam, accident, ice.

7. the new industrial product constituted by the set of coordinated recordings produced by the processes according to 1 to 6, which set may include either purely visual recordings, or sound recordings, or a combination of the two.

8. Device for using the product according to claim 7, characterized in that the visual and / or sound recordings are mounted in an apparatus adapted to reproduce said recordings in their sequence.

9. Device according to claim 8, characterized in that the visual and / or sound reproduction device installed on board a vehicle is associated with means making it possible to actuate it as a function of the movement of the vehicle.

10. Device according to claim 9, characterized in that these means are corrugated by a transmission connected to the propulsion mechanism of the vehicle.

11. Device according to claim 10, characterized in that the continuous drive from the vehicle thruster is combined with a step-by-step drive, so that each visual recording comes and remains in the examination position for a sufficient time or that each sound or cinenatographic recording, of shorter duration than the step-by-step interval, can be reproduced completely in this interval.

12. Device according to claim 11, characterized in that the step-by-step drive from the continuous drive coming from the propellant of the vehicle, comprises means for temporarily blocking the scrolling of views combined with a friction drive and cam means for progressively releasing said means.

13. Device according to claim 9, characterized in that the reproduction device is actuated by an electric stepping motor, combined with a signal transmitter to actuate this motor.

14, Device according to claim 13, characterized in that the signal transmitter is installed on board the vehicle and controlled by the propellant thereof.

15, Device according to claim 13, characterized in that the signal transmitter is installed at points located along the path of the vehicle.