DE1078797B - Device for photographic traffic monitoring - Google Patents

Description

GERMAN

The present invention relates to a device for photographic traffic monitoring with a self-registering photographic camera.

Such devices are known. So far they have been associated with the disadvantage that it is police License plate number of the registered vehicle and details of the traffic situation at the time of Recordings were often no longer clearly recognizable during the later evaluation of the recording material.

To overcome these disadvantages is now proposed according to the present invention, at a device for photographic traffic monitoring with an automatically registering photographic Camera in the roadway area, triggering means that can be influenced by a vehicle, in particular contact thresholds or to provide interacting pairs of contact thresholds, which when driving past the Vehicle via an electrical switching device two or more at adjustable time intervals Trigger successive recordings from the surveillance camera, which is designed as a row builder. To monitor compliance with one side of the roadway, it is advisable to position the contact thresholds lengthways the carriageway center line. At intersections with traffic lights, one can trigger the trigger sole effecting contact threshold arranged transversely to the direction of the road at each junction and only effective for the duration of the blocking signal (red light) in the associated direction be. In this case, the device according to the invention can already be used for the duration of the activation The yellow signal lamp of the traffic light is switched on before the red signal lamp of the traffic light be transferable to operational readiness.

To monitor speed limits or S top-S it is also possible to divide by two Contact thresholds located at right angles to the road and spaced apart from one another only record the recordings then to be triggered when the contact thresholds within an adjustable time span one after the other by the same Vehicle are run over.

According to the invention, a timer device that can be switched on when the first photograph of a vehicle is triggered is provided for triggering further photographs at a defined time interval. In particular, a switch influenced by a vehicle can be used to excite a relay which, on the one hand, causes the first shutter release and, on the other hand, the switching on of the electrical switching device by which the second shutter release is controlled. In connection with the speed or stop point monitoring, two switches influenced one after the other by a vehicle can each energize a relay, each of which has a switch for photographic means
Traffic awakening

Applicant:

Agfa Aktiengesellschaft,

Leverkus en Bayerwerk,

Kaiser Wilhelm Allee

Dr. Friedrich Biedermann, Unterhaching near Munich, Dr. Richard Wick, Grünwald near Munich,

and Josef Pfeifer, Unterhaching near Munich,

have been named as inventors

in the circuit of the electromagnet of the camera actuator as well as control one switch each in the circuit of another relay that is used to switch on the electrical switching device is used. This switching device can be one in the circuit of the Electromagnets arranged to control further switches.

According to the invention, means can be provided by which the monitoring device in the period between the successive recordings of a vehicle by other vehicles cannot be triggered is.

According to the invention, the photographic camera of the monitoring device is together with the electrical one Switching device in a common housing arranged on the roadway to be monitored housed. The camera, a flash unit possibly assigned to it, the electrical switching means and, if applicable, their power source can be arranged in the above-mentioned housing in an easily replaceable manner be. Additional devices for displaying the date, time and possibly Be arranged speed of the registered vehicle and reflected in the photographic camera will.

The object of the invention is associated with the significant advantage that as a result of the multiple photographic registration of the vehicle violating a traffic regulation, the entire traffic situation in the respective violation case during the evaluation into the camera of the surveillance equipment

905 768/207

tang loaded film can be determined exhaustively. From the different locations of the illegal moving vehicle during the successive in a known time interval Recordings can also be approximately based on the current speed of the crossing vehicle getting closed. For example, it can be determined whether the crossing vehicle has a Has passed a red light at an intersection at low or high speed. Furthermore, the Police license plates of the crossing vehicle in the vast majority of cases also recorded photographically, if this license plate was covered by other road users when it was first recorded, z. B. by pedestrians standing on the edge of the road or crossing the road.

Some embodiments of the invention will emerge from the following description. These embodiments are shown in more detail in the drawings, namely shows

1 shows a road intersection with traffic lights and a traffic monitoring device in perspective Depiction,

2 parts of the traffic monitoring device in a view from the front,

3 shows the electrical switching device of the monitoring device of Fig. 1,

FIG. 4 shows the electrical circuit arrangement of a signal lamp of the traffic light of FIG. 1,

5 shows a roadway with a device for monitoring compliance with a fixed one Top speed,

6 shows the electrical switching device of the monitoring device of FIG. 5.

Fig. 1 shows a schematic representation of a road intersection 1. At the confluence of an access road 2 is a column 3 with a traffic light, which in a known manner a red signal lamp 4, a yellow signal lamp 5 and a green signal lamp 6.

The traffic monitoring device that interacts with the signal lamps and is described in more detail below determines and registers those vehicles coming from street 2 when there is a red light Illegally drive at intersection 1.

The traffic monitoring device comprises one which is arranged on or in the right-hand lane of road 2 Contact threshold 7 as well as one with regard to shutter release, shutter lift and film transport electromagnetically actuated photographic camera 8, an electronic flash device cooperating with this 9 and an electrical switching device which is arranged on a carrier 10. The camera 8, that Flash device 9 and the carrier 10 with the electrical switching device are in a common housing 11 arranged to be easily exchangeable. The housing 11 is on a few meters in front of the signal lamp column 3 arranged column 12 attached. As can be seen from FIG. 2, the front one has the signal lamps 4 to 6 facing wall 13 of the housing 11 a window 14 behind which the lens of the camera 8 is arranged is, and another window 15, behind which the flash device 9 is set up. The opening angle of the lens the camera 8 and the illumination angle of the reflector of the flash unit 9 are so large that the The road area on and behind the contact threshold 7 is detected or illuminated. The signal lamps 4 to 6 are in the image field of the camera 8 and are shown on the film when the shutter is released.

The electrical switching device, which is arranged on the slide-in carrier 10, is shown in more detail in Fig. 3 and consists essentially of a switching part 16 and an electronic one Time switch 17, which has a common transformer 18 with two secondary windings 19, 20 and each with a multipath rectifier 21 and 22, respectively and are connected to the alternating current network 29, 30 via a respective sieve chain 23, 24, 25 or 26, 27, 28. The switching part 16 and the timer 17 are preferably connected to the power supply units via plug connections 31, 32, 31 ', 32' or 33, 34, 33 ', 34' are connected.

To the DC voltage leading terminals 31 ', 32' of the switching part 16 is via the connecting lines 35, 36 and via the switch 37, which is actuated by the contact threshold 7, a first relay 38 connected, which actuates the switch 38 a lying parallel to the switch 37.

Further, to the connection lines 35, 36 through the relay 38 is actuated by the changeover switch 38 b, a second relay 39 to be connected, in which circuit a capacitor is 40th A resistor 41 can be connected to the capacitor 40 through the changeover switch 38 b.

The relay 39 actuates the switch 39 a, through which the electromagnet 42 can be connected to the lines 35, 36 is. The electromagnet 42 controls the not shown, known per se device for triggering of the shutter as well as for the subsequent tensioning of the same and advancing the film of the photographic camera 8.

The electronic timer 17 is connected to the terminals 33 ', 34' via the lines 43, 44 and comprises, in a known manner, a thyratron 45, the grid 46 of which is connected to a time circuit capacitor 47. This is connected in series with a preferably adjustable resistor 48. The switch 38 c located in the connecting lines of the timer 17 and the switch 38 if located parallel to the time circuit capacitor 47 are controlled by the relay 38 of the switching part 16. The relay 49 in the anode circuit of the thyratron 45 controls a switch 49 α arranged in the circuit of the release magnet 42 and parallel to the switch 39 α and the switch 49 b in the circuit of the relay 38 of the switching part 16.

As can be seen from Fig. 4, the circuit is connected via the conductors 50, 51 and the switch 52 to the AC mains 29,30 connected red signal lamp 4 of the traffic lights another relay 53, the the switch 53 α in the circuit of the relay 38 of the switching part 16 (Fig. 3) controls.

The proposed device works as follows:

If the red signal lamp 4 is not switched on, the switch 52 is therefore open, the relay 53 is also de-energized and the switch 53 α is open. The remaining switches of the switching device 16, 17 assume the position shown in FIG. The switching device is therefore not triggered when a vehicle drives over the contact threshold 7 and therefore closes the switch 37. A photographic registration of the vehicle does not take place.

During the phases in which the access from road 2 to intersection 1 is to be blocked, the Switch 52 closed so that the red signal lamp 4 is on and the relay 53 is energized. Thus is during the "red" phases also switch 53 a closed. The relay 38 and with it the other parts of the

5 6

Switching device 16, 17 remain to be monitored first, for. B. the observance of one currentless. Lane center lane that is not allowed to drive If a vehicle 54 drives with "Red" switched on. For this purpose, too, the one shown in FIGS. 1 to 3 is used Lamp 4 coming from street 2 can be used on the Kreu facility, although on the tongue 1 and thus over the contact threshold 7, so 5 traffic lights with the signal lamps 4, 5, 6 and on this closes the switch 37. This will dispense the switch 53 α and the contact relay 38 energized and on the threshold 7 controlled by him along the lane center lane to switch 38a kept in a state of excitement, and that is orderly.

even when the switch 37 is opened again after the release of the contact threshold 7, which has been modified in this way by a spring 10 to 3, which is not shown, can also be opened again to monitor compliance. As a result of energization of the relay 38 of a no-overtaking ban can be used. In this case, the changeover switch 38 b is switched from the contact element 55 to the contact threshold 7 in the contact element 56 for the overhaul, so that the capacitor 40 not released and used by oncoming traffic is charged via the relay 39. As a result, part of the roadway is to be laid and this is briefly excited in a known manner and thus also to design the switch 15 in such a way that it briefly closes the switch 37 with 39 α , whereby the electric is actuated when it is in one of the two Travel magnet 42 is briefly energized and the closure of the directions is passed. In the case of a load photographic camera 8 is triggered. The vehicle motor vehicle restricted overtaking ban is 54 for the first time photographically registered contact threshold is used, which is only limited by 20 vehicles with a predetermined minimum axle pressure as a result of the aforementioned excitation of the relay 38 in the sense of a triggering of the switching device, the switch 38 is also c of the electronic 16, 17 can be operated. This pressure-dependent switch 17 closed and switch 38 d overall Contact emerging needs, of course, does not open, so that the timing circuit capacitor 47 to be over dependent on direction when it begins charging on motorways resistance 48th As soon as the 25 and other lanes without oncoming traffic used capacitor voltage a predetermined value is achieved.

has enough, the thyratron 45 ignites, so that the relay The principle of repeated photographic Re-49 is excited. As a result, the switch 49 a is registered when the driving locks are driving contrary to the regulations and the photographic camera 8 over the vehicle can also be triggered for the second time when the one-magnet 42 is monitored, while the switch 49 & is opened at the same time and thus turned around while a set maximum speed is maintained . A device suitable for this purpose relay 38 is de-energized. As a result, it is shown in FIG. It comprises two in one switch 38 a, 38 &, 38 c, 38 d , which can be set back to the mutual distance shown in FIG. therefore contact thresholds 58, 59 arranged on track 57 and capacitors 40, 47 are discharged and thyratron 45 is again extinguished on a column 12 next to the carriageway. As a result, the switch 57 arranged housing 11, in which - similar to ter49a is opened again and the switch 49 & again in the object of FIG. 2 - a photographic one is closed. Camera 8, a flash unit 9 and a plug-in unit 10 Then the entire electrical switching device is arranged with an electrical switching device 16, 17 are again in the initial state and for a 40.

new switching time sequence ready for operation. This switching device is shown in FIG By setting the resistance accordingly, it consists of a switching part 60 and two elec-48 the switching time of the timer 17 can be set to approximately tronic timers 61, 62, of which the switching 1 Second are set, so that the time clock 61 to determine the driving distance driving too fast between the first, when crossing 45 witnesses and the timer 62 to repeat the Contact threshold 7 taking place, and the second, by triggering is used. Each of the two Baudie Timer 17 triggered photographic recording groups 60 and 61, 62 is connected to a direct current source of the driving connected to the red light on the junction 1, z. B. with the contact terminals 31 ", tool 54 is about 1 second. 32 "or 33", 34 "to the contact terminals 31, 32 The closing of the switch 53 a and thus the 50 or 33, 34 of the shown in Fig. 3, from TransÜberführung of the switching device 16, 17 existing in the operating formator, rectifier and filter chains Readiness can deviate from the shown off power supply units.

management example instead of when switching on the "red" - The switching part 60 comprises a first relay 67, the Lamp 4 also already during the "red" phase to the connection preceding with the direct voltage "Yellow" phase take place, namely 55 disconnect 31 ", 32" connected conductors 64, 65 via the switch 66 is not connected directly when the "yellow" lamp 5 is switched on, the one through the first or is actuated by contact threshold 58 in the course of the above-mentioned "yellow" phase. The relay 67 legs when the "yellow" lamp 5 is switched on, the switch lying parallel to the switch 66 operates Time switch device. This can be set in this way 67 a.

the that the switch 53 a, for example, after 60 to the conductor 64, 65 of the switching part 60 is on the

is closed by two thirds of the "yellow" time. Switch 68, which is triggered by the second contact threshold 59

The opening of the switch53 α also takes place in this is actuated, a second relay 69 is connected.

Case when switching off the "red" lamp 4, which is known- This actuates the switch 69 a, through which

Together with the "yellow" lamp 5 at the end of the capacitor 70 and resistor 71 in parallel

the “yellow” phase preceding the “green” phase is switched on to the switch 68 or via the conductor 72

is switched. can be short-circuited. The relay 69 is

The principle of repeated photographic registra- tion also actuates the switches in series with switches 66 and

stration of a vehicle driving contrary to the regulations parallel to switch 67 a, switch 69 b.

can of course also be used. In addition, there is a third relay on the conductors 64, 65

if the compliance with other traffic regulations 70 73 is connected, namely via the

lais 67 actuated switch 67 b and via the switch 69 c actuated by the second relay 69. The switches 67 b, 69 c are in series with one another and parallel to the switch 73 α actuated by the relay 73. The relay 73 also actuates the switch 73 b in the circuit of the relay 69.

Finally, the electromagnet 74, which is used to release and tension the shutter and to advance the film of the camera 8, is connected to the conductors 64, 65 via the switch 67 c operated by the relay 67 and via the switch 69 d operated by the relay 69.

The time switches 61, 62 are connected to the contact terminals 33 ", via the common connecting lines 75, 76. 34 "and each include a thyratron 77 or 82 in a known manner, each with a grid 78 or 83 connected time circuit capacitor 79 or 84 and one each with the capacitor 79 or 84 in Series connected, adjustable resistor 80 or 85.

The relay 81 in the anode circuit of the tube 77, the timer 61 controls the switch 81 α in the current circuit of the relay 67 of the shifting member 60. Conversely, controls the relay 67 to lie in the anode circuit of the tube 77 switch 67 d and lying parallel to the time circuit capacitor 79, the switch 61 Switch 67 e.

In contrast, the relay 86 in the anode circuit of the tube 82 of the timer 62 controls the switch 86 a in the connecting line 75 of the timers 61, 62, the switch 86 & in the circuit of the relay 73 of the switching part 60 and the switch 86 c, which is parallel to the switches 67 c, 69 d is arranged in the circuit of the magnet 74 of the switching part 60.

The switching time of the timer 61 is precise by setting the resistor 80 accordingly adapted to the time in which the distance between the contact thresholds 58, 59 from the vehicle 63 is driven through while observing the maximum permissible speed. The switching time of the timer 62 is set to about 1 second.

The operation of the device shown in Fig. 5 and 6 is such that when driving over the first contact threshold 58 the timer 61 is switched on. If the vehicle 63 is going too fast, it releases the shutter of the camera 8 for the first photographic one when the second contact threshold 59 is crossed Registration off and switches on the timer 62, which after about one second the second causes photographic registration of the vehicle moving too fast. The following is how it works the device shown in Fig. 5 and 6 is described in detail:

When the threshold 58 is crossed, the switch 66 is closed briefly, the relay 67 picks up and closes the switches 67 a, 67 b, 67 c, 67 d, while the switch 67 e is opened. The relay 67 remains energized by closing the switch 67a, even if the switch 66 has passed the contact threshold

58 opens again. By closing the switch 67 d and by opening the switch 67 e , the timer 61 is switched on, and the capacitor 79 begins to charge.

If the speed of the vehicle 63 exceeds the maximum permissible speed, so that it the Distance between the contact thresholds 58, 59 in a shorter time than the switching time of the Timer 61 goes through, the contact threshold

59 run over before the tube 77 of the timer 61 ignites. The switch 68 is closed and the relay 69 energized. This puts the changeover switch 69 a from the contact element 87 to the contact element 88, opens the switch 69 & and closes the switches 69 c and 69 d. Since at this point in time the switches 67 b, 67 c are still closed in the event of a violation, the relay 73, which holds itself through the switch 73a, and the magnet 74, which triggers the shutter of the camera 8 for the first time and at the end of the photographic recording again and advances the film by one frame step.

With the aforementioned excitation of the relay 73, the switch 73 b is opened, so that the relay 69 is de-energized again. The switches 69 a, 69 b, 69 c, 69 d are thus reset to the starting position, whereby the magnet 74 is also de-energized again.

At the same time, when the aforementioned excitation takes place when the contact threshold 59 is crossed of the relay 73 and the switch 73 c opened, whereby the timer 62 is turned on and her Capacitor 84 begins to charge.

Before the switching time of the timer 62 has elapsed, the capacitor 79 of the timer 61 charges up to such an extent that the tube 77 ignites, the relay 81 responds and the switch 81a is opened. As a result, the relay 67 is de-energized, so that the switches 67 a, 67 b, 67 c, 67 d are opened and the switch 67 e is closed, the timer 61 is therefore reset to its initial state.

As soon as the capacitor 84 of the timer 62 has the potential required for the ignition of the tube 82 has reached, this ignites. The thereby excited relay 86 closes the switch 86 c, so that the magnet 74 is excited for the second time. Thus, the crossing vehicle 63 becomes photographed for the second time registered.

Since the switch 86 & is opened when the relay 86 is energized, the relay 73 is de-energized, so that the switch 73a is opened again and the switches 73b , 73c are closed again. Furthermore, since the switch 86 a is opened when the relay 86 is energized above, the passage of current through the tube 82 is interrupted. The relay 86 is thus immediately de-energized again, as a result of which the switches 86 a, 86 b, 86 c are reset to the starting position shown in FIG. 6.

The entire switching device 60, 61, 62 is then again in the initial state.

The switch 73 b actuated by the relay 73 and arranged in the circuit of the relay 69, which is opened after a vehicle driving too fast has passed both contact thresholds 58, 59, ensures that the relay 69 is driven by a second vehicle following or traveling in the opposite direction is not re-energized as long as the relay 67 is still energized and thus the second photograph of the first crossing vehicle has not yet been completed. Incorrect registrations by following vehicles are therefore not possible.

Even in the event that a vehicle traveling in the opposite direction crosses the contact threshold 59 in front of the contact threshold 58, the camera shutter will not be triggered, since the switch 69 b is opened when the contact threshold 59 is crossed and therefore when the contact threshold 58 is subsequently crossed the switch 66 is closed by the vehicle traveling in the opposite direction or by another vehicle, but the relay 67 is not energized.

The switched on after crossing the contact threshold 59 and closing the switch 68 in parallel to this Capacitor 70 effects in context

with the resistor 71 that the relay 69 remains energized even after opening the switch 68 and thus the relay 73, which has a certain response delay, is also energized with certainty. Further the magnet 74 remains energized with certainty until the not shown activating the camera 8 Armature of the magnet 74 has ended its switching stroke.

If the speed of the vehicle 63 when driving through the distance between the thresholds 58, 59 does not exceed the permissible maximum value set by the resistor 80, the switches 66, 68 are closed when the contact thresholds 58, 59 are crossed and, as a result, the relays 67, 69 excited; the relay 73 and the magnet 74 do not respond, however, since the switching time of the timer 61 triggered when the threshold 58 is crossed has already expired and therefore the switches 67 b, 67 c are already opened again as a result of the ignition of the tube 77 when the Contact threshold 59 the switches 69 c, 69 d are closed. The camera 8 is therefore not triggered in this case.

By adjusting the resistor 48 of the device shown in FIGS. 1 to 4 or by adjusting the Resistor 85 of the device shown in FIGS. 5 and 6, it is possible to use the one described above Embodiments of the invention set a time interval of 1 second between two to change associated photographic recordings of a vehicle violating the traffic regulations.

It goes without saying that the subject matter of the invention includes a vehicle after it has been determined improper driving style not just twice, but several times at defined time intervals to register photographically. In this case would be in the embodiments shown in the drawings further electronic time switches required, which are triggered by the relay 38 or 49 or 73 or 86 and would control other switches that are in the circuit of the magnets 42 and 74 parallel to the switch 49 a or 86 c would have to be ordered.

Instead of the electronic time switches 17, 61, 62, other time switching devices, e.g. B. those with servomotors are used.

The switching device 16, 17 or 60, 61, 62 can also be connected to batteries instead of the alternating current network or accumulators, which can be accommodated in the housing 11, can be connected.

The device shown in FIGS. 5 and 6 can also be used to monitor compliance more generally »Halt« regulations, which are achieved by putting up a corresponding sign at confusing intersections are enacted. In this case it is possible to adjust the resistance accordingly 80 to set the switching time of the timer 61 to the minimum time span required for holding and Restarting between the contact thresholds 58, 59 is required.

In the housing 11 can also devices for displaying the date, time and possibly also the speed actually driven by the person violating the traffic regulations Be arranged vehicle and reflected in the photographic camera 8, so that at the photographic registration of the crossing vehicle, date, time and, if applicable, also the speed of the vehicle can be registered by the camera 8 and on the film according to his Development can be read.

Claims (17)

Patent claims: 1. Device for photographic traffic monitoring with an automatically registering photographic Camera, characterized by arranged in the lane area, can be influenced by a vehicle Triggering means, in particular contact thresholds or interacting contact threshold pairs, which when the vehicle drives past via an electrical switching device two or more recordings of the Trigger a surveillance camera trained as a trainer. 2. Device according to claim 1 for monitoring compliance with one side of the road, characterized in that the contact thresholds are arranged along the center line of the lane. 3. Device according to claim 1 at an intersection with traffic lights, characterized in that that each a triggering alone causing contact threshold transversely to the direction of the road arranged at each junction and only for the duration of the blocking signal (Red light) is effective in the associated direction. 4. Device according to claim 3, characterized in that it during the duration of the Switching on the red signal lamp (4) of the traffic light preceding switching on the yellow one Signal lamp (5) of the traffic light can be transferred to operational readiness. 5. Device according to claim 1 for monitoring speed limits or Stop points, characterized in that two lying transversely to the roadway, at a distance from one another arranged contact thresholds only cause tripping if they are within a adjustable time span can be driven over one after the other by the same vehicle. 6. Device according to one of the preceding claims, characterized by one upon triggering the first photograph of a vehicle that can be switched on (17; 62) to trigger further recordings at a defined time interval. 7. Device according to claim 6, characterized in that by one of a vehicle influenced switch (37) a relay (38) can be excited, which on the one hand the first release of the shutter and on the other hand causes the switching on of the electrical switching device (17) by which the second shutter release is controlled. 8. Device according to claim 5, characterized in that one relay (67, 69) can be excited by two switches (66, 68) influenced one after the other by a vehicle, each having a switch (67 c, 69 d) in the circuit of the electromagnet (74) control the camera actuation device as well as one switch (67 b, 69 c) in the circuit of a further relay (73) which is used to switch on the electrical switching device (62). 9. Device according to claim 8, characterized in that the switching device (62) controls a switch (86 c) which is arranged in the circuit of the electromagnet (74) and which bridges the switches (67 c, 69 d). 10. Device according to one of the preceding claims, characterized by means by 909 768/207 which it carried out in the period between the successive recordings of a vehicle other vehicles cannot be triggered, 11. Device according to claims 7 and 10, characterized in that the relay (38) by a controlled by it, the switch (37) bridging switch (38 a) remains switched on during the entire switching timing and from the electrical switching device (17) can be switched off by a switch (49 b) controlled by it and arranged in the circuit of the relay (38). 12. Device according to claims 8 and 10, characterized in that the relay (67) has a the switch (66) bridging switch (67 a) controls and that in the circuit of the relay (67) actuated by the timer (61) of the device for determining which vehicles are moving too fast Switch (81a) is arranged. 13. Device according to claims 8 and 10, characterized in that a switch (73b) is arranged in the circuit of the relay (69), which is controllable by the relay (73), and that in the circuit of the relay (73), the one the switches (67 b, 69 c) bridging switch (73 a) controls, a by the electrical switching device (62) influenced switch (86 b) lies. 14. Device according to claim 10, characterized in that a capacitor through the relay (69) (70) can be connected in parallel with the switch (68). 15. Device according to one of the preceding claims, characterized in that the photographic Camera (8) together with the electrical switching means (16, 17; 60, 61, 62) in one common housing (11) arranged on the roadway to be monitored (2; 57) is. 16. The device according to claim 15, characterized in that the camera (8), possibly one of them associated flash device (9), the electrical switching means (16, 17; 60, 61, 62) and possibly their power source are arranged in the housing (11) so as to be easily replaceable. 17. Device according to claim 15, characterized in that additional in the housing (11) Devices for displaying the date and time and, if applicable, the speed of the registered vehicle are arranged and are reflected in the photographic camera (8). 1 sheet of drawings 909 765/207 3.60