DE102018106150A1 - Utility vehicle and / or special vehicle and method for transmitting radio signals - Google Patents

Abstract

Auxiliary and / or special vehicle (1) and method for transmitting radio signals (7) of emergency and / or special vehicles (1) in order to avoid other road users (4) on the public roads (4) on the public roads and / or special vehicles (1). 40) with information, instructions and / or data to supply, with a computer device (4) controlled by a radio transmitter unit (6) radio signals (7) are emitted. Depending on external conditions, a signal strength of the radiated radio signal (7) is changed during operation and / or a spatial radiation characteristic (20) of the radiated radio signal (7) is changed.

Description

The present invention relates to an emergency vehicle and / or a special vehicle and a method for transmitting radio signals. In emergencies often important time is lost because, for example, emergency lanes are not formed correctly or too late in the road and because in road trips with emergency vehicles or special vehicles other road users are often overwhelmed.

With the DE 20 2015 000 237 U1 has become known a mobile transmitter of electromagnetic waves, with the warning of road users in the near to medium environment of a vehicle emergency is possible. A mobile transmitter of electromagnetic waves is used whose electromagnetic waves can be received in the near to medium environment of receivers and which can transmit messages via traffic information technologies or via the Radio Data System (RDS). According to this document, the transmitter in the emergency vehicle transmits radio waves which can be received within a radius of 500 m. Each vehicle in this environment receives a warning about the receiver installed in it, that an emergency vehicle is approaching. Basically, with such a system a mission trip can be made harmless. The disadvantage, however, is that when used within a city, the road users are confused in a relatively large area, since they have to assume based on the radio announcements that approach an emergency vehicle, although the corresponding road users, for example, on a parallel road or a cross road is traveling and away from the emergency vehicle.

It is therefore the object of the present invention to provide an application and / or special vehicle and a method for transmitting radio signals, whereby the affected road users can be informed more reliably and thus the risk is reduced that uninvolved road users are unnecessarily unsettled.

This object is achieved by a service vehicle and / or special vehicle having the features of claim 1, by a system having the features of claim 17 and by a method having the features of claim 19. Preferred embodiments of the invention are the subject of the respective subclaims. Further advantages and features of the present invention will become apparent from the general description and the description of the embodiments.

An insert and / or special vehicle according to the invention has a body and in particular a plurality of wheels and preferably a separate drive in order to drive at least also (automatically) on public roads. The insert and / or special vehicle according to the invention comprises at least one computer device and at least one radio transmitter unit at least for the emission of radio signals via, for example, VHF. A signal strength of the radiated radio signal is variable and / or the radio signal is radiated locally.

An inventive and / or special vehicle has many advantages. A considerable advantage of an insert and / or special vehicle according to the invention is that radio signals can be transmitted to other road users by the radio transmitter unit, a signal strength of the radiated radio signal being variable and / or the radio signal being able to be emitted locally. In addition, the range of the transmitted radio signal can be influenced. In addition, over one direction of the signal, the radio signal is not uniformly radiated in all directions. As a result, for example, lateral areas can be left out so that only vehicles in front of / behind the mission and / or special vehicle receive the corresponding radio signals.

An emergency vehicle or special vehicle according to the invention can be designed, for example, as a police vehicle, fire engine, ambulance, ambulance or THW vehicle or the like. Also possible is the inventive equipment of a clearing vehicle or a construction vehicle. In the following, the term "special vehicle" is understood in each case to mean an emergency vehicle and / or a special vehicle. Particularly preferred emergency vehicles are equipped accordingly.

As radio signals electromagnetic waves are emitted, which are preferably formed as radio waves. Basically, the transmission of the radio signals in any wavelength ranges is possible.

In a preferred embodiment of the invention, the special vehicle has a mounted on the body and / or on a roof of the body special signal unit, which contains or comprises one or more than one signal generator for emitting acoustic and / or visual warning signals. About such signal generator, the mission and / or special vehicle emitting acoustic and optical signals to the road users in the vicinity, so that they are made visually and acoustically aware of the special vehicle. Such a configuration has in particular emergency vehicles.

Preferably, the radio transmitter unit and / or the computer device is accommodated in the special signal unit. This allows a space-saving design. Often, there is still sufficient space available in the special signal unit to accommodate a radio transmitter unit or even a plurality of radio transmitter units and one or more computer devices and similar electrical devices.

In a preferred embodiment, a receiving unit or at least one receiving unit is included to detect a location signal. With the location signal, a position of the special vehicle can be determined. For example, a GPS signal (or another satellite-based signal) can be detected or the radio cell of at least one mobile radio network is determined in order to obtain at least an approximate position of the special vehicle. In particular, it is possible to change a signal strength of the radiated radio signal as a function of the position determined.

In preferred developments, the computer device is set up to emit a greater signal strength via the radio transmitter unit when the special vehicle is outside a (closed) location or outside a closed building area. The computer device is preferably set up to emit a lower signal strength via the radio transmitter unit if the special vehicle is located within a location or in the immediate vicinity of a location. The term "immediate proximity" is understood in particular to mean a distance which is smaller than a typical range of the radio transmission unit at maximum signal strength. It is also possible that the signal strength is reduced, if the special vehicle has approached to a place to half the range with maximum signal strength. Also possible are other levels of signal strength and distance to a location.

In a preferred refinement, at least one route type from a group of route types is determined from the position of the special vehicle, the group of route types at least including inner-city streets, highways, highways and freeways or motorway-like streets and the like. It is also possible that forest roads and farm roads and the like are more included. By determining a path type on which the special vehicle is located, the signal strength and / or the orientation of the radiated radio signals can optionally be varied depending on the route type. Due to the typically higher speeds on highways or highway-like roads, greater signal strength is preferably emitted on such roads than on inner-city roads or on country roads.

The computer device is preferably set up to emit a greater signal strength via the radio transmitter unit if the special vehicle is located on a road with more than two lanes. In particular, it is preferable to set the signal strength as a function of the route type and the position of the special vehicle. Thus, a greater signal strength is preferably set on federal roads outside built-up areas than, for example, on farm roads.

In preferred developments, the computer device is set up to adjust the signal strength as a function of a driving speed and / or a measure of a traffic density.

For example, if the special vehicle is traveling on the highway at a speed of 130 km / h, it is preferable to set a greater signal strength than if the special vehicle travels on a trade route at 50 km / h. If the special vehicle moves through a traffic jam on the freeway, a medium range is more appropriate than one too low.

With a low traffic density, a greater signal strength is preferably transmitted in order to increase the range so that an approaching road user is warned in good time. Thus, for example, a signal strength that is greater at night than at daytime in a liquid convoy on the highway is preferably set on a country road with little traffic.

Preferably, a spatial radiation characteristic (for the radio signals) is designed so that in the direction of travel and / or against the direction of travel a transmitted signal strength is considerably greater than transverse to the direction of travel. By such a radiation characteristic can be reduced to a considerable extent the probability that uninvolved road users receive the transmitted radio signals. This can also increase the acceptance of such a system. In addition, an unintentional confusion of uninvolved road users can be reduced.

Preferably, a spatial radiation characteristic of the radio signal is variable. In particular, the spatial radiation characteristic during operation repeatedly and / or continuously changeable.

In particularly preferred developments, 2 or more antennas are included, whose Radio signals are controllable to set a desired spatial radiation characteristics. The signals of the individual antennas can be combined by interference and / or superimposition to obtain a desired spatial radiation characteristics.

It is also possible that at least one switchable directional antenna and / or at least one dipole antenna and / or at least one folded dipole antenna is included. It is also possible that 2 or more identical or different antennas are included. Individual antennas can be aligned in individual directions, so that by activating individual antennas, the radiation characteristic can be changed or adjusted.

Preferably, a spatial radiation characteristic is variable as a function of a planned route of the vehicle and / or the course of the road. Preferably, a position of the vehicle is detected by a navigation system or the like. The data stored in the navigation system make it possible for the computer device to change or set the spatial emission characteristic and / or the emitted signal strength as a function of the road course and / or the planned route.

For example, if it is planned that the special vehicle at the next bend or intersection, for example, turns right or left, so the transmission power of the radio signal can be adjusted accordingly when the special vehicle approaches the turnstile. In addition, the emission characteristic can be adapted and changed in such a way that a corresponding signal strength is also conducted to the route section which the special vehicle travels after turning off. By means of a combination of the setting of the emitted signal strength and the setting of a desired emission characteristic, optimum signal transmission can be set in which the affected parties are informed in good time and reliably to let the approaching of the special vehicle to road users. In a corresponding manner subsequent vehicles can be informed of the use of the special vehicle, for example, when an accident has occurred.

In all embodiments, preferably at least one operating element is included, upon actuation of which a predefined and / or variable message can be transmitted via the radio signal. Such an operating element may be formed, for example, as a control knob.

But it is also possible that the operating element is shown on a touch-sensitive surface or is formed. Preferably, a plurality of operating elements are provided, wherein each element preferably triggers a predetermined and / or selectable and / or adjustable function. For example, different controls may be provided for different messages.

It is possible and preferred that at least one operating element is provided, in which a freely deposited message is sent out. It is also possible that an operating element or at least one operating element is provided, which provides, for example, a push-to-talk function, so that after the actuation of the corresponding operating element, the current speech signal is transmitted.

Preferably, the radio signal is transmitted as a radio signal. It is possible and preferred that the radio signal is transmitted in chronological succession and / or simultaneously to at least 2 radio frequencies.

Preferably, the radio signal is transmitted in the VHF range. However, it is also possible for the radio signal to be transmitted additionally or instead as a long-wave signal or as a short-wave signal or as a medium-wave signal. It is also possible that the radio signal for digital radio is sent out. It is also possible that the radio signal is broadcast IP-based over the Internet. Then the radio signal passes via corresponding radio waves to the special vehicle or the like. Suitable algorithms can be used to ensure that only receivers in the desired area (in front of, behind, etc.) receive and evaluate the corresponding radio signal around the special vehicle.

In preferred embodiments, at least one radio reception module is included with which the transmission frequencies of a number of locally receivable radio stations can be determined. Preferably, the radio signal is broadcast on the number of detected transmission frequencies. In this case, a simultaneous or sequential radiation of the radio signal can take place at the different transmission frequencies.

For example, an analysis of the receivable radio stations can be carried out periodically with the radio reception module. For example, the 5 or 10 strongest radio stations (with or without traffic information) can be determined. Subsequently, the radio signals are broadcast on the frequencies of the determined radio stations. This ensures that virtually all road users who have turned on the radio reception, receive the radiated radio signal and thus receive the emitted message.

Preferably, a traffic signal is transmitted with the radio signal to set a receiving radio to traffic reception. In many popular car radios, the volume is set larger on receipt of a traffic signal and, for example, interrupted a CD playback, so that the traffic news can be played. In this application, announcements of the special vehicle are then output in the car radios of the received road users instead of the traffic news, so that the drivers are informed accordingly.

An inventive system comprises at least one control center and at least one use and / or special vehicle with a body and in particular a plurality of wheels to drive at least on public roads. The deployment and / or special vehicle comprises a computer device and a radio transmission unit at least for the transmission of radio signals via electromagnetic waves and, for example, VHF. A signal strength of the radiated radio signal is variable and the radio signal is radiated locally. The service and / or special vehicle may have further features, as described above. From the control center from control signals are output or control signals can be output, which are received by a receiver of the mission and / or special vehicle. The computer device of the mission and / or special vehicle is set up and designed to control the radio transmitter unit and to emit radio signals.

The system according to the invention also has many advantages. The system according to the invention allows the control of the emitted radio signals from the mission and / or special vehicles from a control center. This makes it possible for a service vehicle and / or special vehicle or several such vehicles to emit radio signals without the drivers and crews of the corresponding vehicles having to deal with the transmission of the corresponding messages.

The control center preferably receives current position data of the emergency and / or special vehicle via data signals and controls the radio signal by means of the position data and alters a signal strength of the radiated radio signal during operation and / or alters a spatial radiation characteristic of the radiated radio signal. As a result, different radio signals can be transmitted from different control and / or special vehicles from the control center, which are each adapted to the local conditions of the corresponding vehicles. In a corresponding manner, the signal strength of the respective radio signals and possibly also their spatial radiation characteristics can be adjusted and adjusted. Thus, the radio signals of multiple emergency and / or special vehicles can be controlled, which approach, for example, via different paths to an accident location.

The method according to the invention is used to transmit radio signals from emergency vehicles and / or special vehicles in order to provide other road users with information, instructions and / or data at least on public roads, radio signals being radiated by a computer unit via a radio transmitter unit. In this case, depending on external conditions, a signal strength of the radiated radio signal is changed during operation and / or a spatial emission characteristic of the radiated radio signal is changed.

With the method according to the invention, radio signals of emergency and / or special vehicles can be sent out in an advantageous manner in order to inform the road users in the nearer or farther surroundings of the emergency and / or special vehicle accordingly.

Overall, the invention offers many advantages. So far, important time is often lost in emergencies, for example, escape routes are formed incorrectly or too late. The present invention allows emergency vehicles or special vehicles in a lighter way to reach the site in case of emergency and to secure them.

It creates a safer working environment for the helpers, as, among other things, subsequent accidents can be better avoided. The system is an advantageous device for emergency and special vehicles of the police and rescue services, with which pre-made or currently recorded audio messages and instructions to the car radios of other road users can be sent.

It is a one-way communication between the emergency vehicle and other road users by announcement made possible. Individual information can be transmitted. Preferably, this is done with a mobile FM transmitting unit, which is installed in the special vehicle and optionally activated with the other special signaling devices.

In the prior art, many mistakes can be made in forming a rescue lane, making it harder for the emergency vehicles to be quickly at the scene of the accident. This saves valuable time. In addition, accidents can happen when evading the emergency vehicle because the road users in unfamiliar Situations are overwhelmed. Also by the "Gaffen" forces are disabled and it is lost valuable time.

In city traffic, after the remark of a service or special vehicle, there is often only a short time to make room for the corresponding vehicle. The short period of time and the unfamiliar situation make it difficult for the road users to act properly. Fear and stress can make mistakes happen. Inexperienced or otherwise stressed drivers can quickly reach their limits and then block emergency vehicles. With on-the-spot information, such as hints on the proper formation of an escape route or instructions on how to get out of the way, it can be made easier for all parties to master the situation. This is made possible by the present invention.

With the invention, the arrival of an emergency vehicle is no longer perceived as stressful and complex situations, but due to the deliberate transfer of information from the emergency vehicle to the road users a basis for a quick and proper decision-making is offered. This supports the correct action of the road users and it enables the emergency vehicle to be even faster at the scene of the accident and thus to offer the urgently needed help as quickly as possible. By adjusting the signal strength of the radiated radio signal and by setting an advantageous spatial radiation characteristic, it is possible that substantially only involved road users are informed.

The invention provides a simple and effective method that facilitates the daily lives of emergency services. By sending messages via a VHF radio signal, emergency vehicles and special vehicles can reach the site faster. Communication with the road users allows a regulated and safe process. For example, the communication and the early perception of an emergency vehicle makes it easier to form escape routes. The situation is much easier for the traffic participants, which increases the safety.

However, road users who have switched off their radio and are thus not directly accessible, but perceive the reactions of other road users and adapt earlier to the actions of other road users, so that also contributes to increased safety.

Overall, the invention makes it possible to calm the frequently stressed road users, so that they can cooperate better. This will allow the task forces to perform their already dangerous job more effectively and safely.

Preferably, the transmission via an FM or MW or LW and / or KW radio station, which transmits the desired announcement about (at least) a radio signal and in particular a traffic signal to all vehicles within the set radiation characteristic. Thus, the radios in the cars of the road users serve as recipients and there is a one-sided and adapted communication starting from the emergency vehicle.

In all embodiments, it is also possible to transmit the radio signals on one or more radio frequencies.

Pre-set announcements can preferably be started or transmitted after a simple push of a button or after the activation of a control element. Thus, after activation, a correspondingly stored message is transmitted. Through the use of ready-made announcements, a secure communication can be guaranteed even in a stressful situation.

Preferably, it is also possible to make an announcement in order to be able to react specifically to specific situations. This is then sent out to the road users within the selected emission characteristic and within the range resulting from the signal strength.

The computer device and the radio transmitter unit and further components can preferably be installed within a special signal unit. The special signal unit can be embodied, for example, as a special signal bar and can be placed on or on the roof unit. In the special signal unit there is regularly enough space to install the components. In addition, the existing cable harness can be used to use a control unit in the vehicle compartment to operate the various functions.

Due to the elevated position on the roof of an emergency vehicle also a low-noise transmission operation with a greater range is possible.

The radio transmitter unit is intended to transmit a directional radio signal and in particular a directional VHF signal. This means that mainly the vehicles within the set or desired emission characteristic receive the signal. In simple embodiments, the vehicles receive the signal in front of and / or behind the emergency vehicle in the direction of travel.

If necessary, it is also possible to provide deployment sites with a 360 ° signal coverage.

For the particular application, it is preferable to adjust the transmission power of the transmitter. For example, in urban areas usually a shorter range is needed than on the highway. The transmitter can be adjusted in terms of signal range and in terms of the beam angle.

One way to achieve the directional characteristic of the radio signals, for example, the targeted use of interference, can be limited by the superposition of waves transmission ranges. The switching on and off of individual antennas also influences the directional characteristic of the radio signals.

The areas of application are varied. In general, the invention can be used wherever road users in specific situations should be specifically informed. This ranges from securing a simple construction site for support during a mission and / or column drive to combating the gaffe problem and securing accident sites.

It is also possible to use the invention in a traffic control. In today's conventional systems, the police makes noticeable by the special signal system and an LED matrix display. This is located on the roof of the patrol car and ensures the visual attention in an emergency and during traffic control. With the present invention, the road user to be checked can also be addressed directly and concretely. By sending out warning messages backwards, additional and effective rear protection can be achieved, which reduces the risk of an accident for all road users involved. In the event of an accident, the rescue services can secure the accident site.

The use is also possible for example in a tracking drive. A pursuit trip is relatively rare in everyday police life, but represents a relatively large risk for the participants and the other road users. With the invention, driving ahead road users can be warned of the danger, which they can adjust early on the unfamiliar situation. As a result, personal injury and / or property damage can be reduced or avoided. In addition, the invention has a psychological effect on the fugitives. The task forces have the opportunity to specifically address the fugitive.

Within a construction site, an application of the invention can also take place. On motorways or highways, employees of road maintenance and local authorities have a relatively dangerous job. With the invention can be additionally warned by the site, so that the work environment can be made a bit safer. In addition, the traffic flow in the construction site region can be improved with the invention.

If the invention is used with a special signal unit which comprises, for example, an LED matrix with text output, an individual text output can be made in addition to individual communication via radio announcements. About a built-in example in the control panel microphone also a push-to-talk button can be realized.

To control a standard small computer can be used. Depending on the number of functions to be performed and the complexity, a correspondingly larger computer or a multi-core processor can also be used.

In all embodiments, it is possible that the announcements are made in several and different languages. By transmitting directional indications or directions, it is also possible that, for example, only vehicles in a traffic direction receive the messages.

Directional radio can be used to set the emission characteristic, wherein, for example, 2 or more antennas are addressed one behind the other delayed in time, so that the individual waves are superposed. The directional characteristic is then produced by adding or subtracting the wave amplitudes in the different emission angles. Three, four or more antennas can be used. Controlling multiple antennas is fundamentally computationally expensive, but available and cost-effective computational resources become ever larger.

It is also possible to use dipole antennas or folded dipole antennas which already have a directional characteristic. Positioned at right angles to the direction of travel, they send them in a defined area. For FM radio waves, such a folded dipole preferably has a width of about 1.0 m to 1.7 m and in particular 1.2-1.5 m.

In further developments, it is possible that the messages are reproduced not only verbally, but also for example by navigation devices and multimedia systems. The messages can thus be transmitted visually on a screen. This can also be done via the digital data transmission via mobile Internet and a direct feed into the navigation systems. It is possible that the messages through the Determining the positions of each vehicle can be transmitted more precisely. Thus, a conclusion can be drawn in relation to the travel path and to the direction of travel of the emergency vehicle and only the road users receive the messages which move on the route of the special vehicle or emergency vehicle.

In all embodiments, unidirectional data transmission is preferably preferred by means of electromagnetic waves (eg in the VHF transmission range or also in the mobile radio range) for the purpose of unidirectional communication between service vehicles and special vehicles and the other road users.

A particular unidirectional message transmission of operational and special vehicles to navigation devices of other (road) road users in the vicinity of the mission and special vehicle is also possible and preferred. In addition, automatically generated or other announcements and / or warnings can be transmitted to other road users.

It is also a unidirectional messaging by control centers to navigation devices of road users in the vicinity of the emergency and special vehicle possible and preferred to transmit announcements and / or warnings to other road users and there preferably automatically output.

Further advantages and features of the present invention will become apparent from the embodiments, which are explained below with reference to the accompanying figures.

• 1 eine schematische Draufsicht auf ein erfindungsgemäßes Einsatz- und/oder Sonderfahrzeug;
• 2 eine schematische Draufsicht auf einen Abschnitt einer Autobahn;
• 3 eine schematische Draufsicht auf einen Abschnitt einer Stadtstraße oder Landstraße;
• 4 eine schematische Darstellung eines erfindungsgemäßen Systems; und
• 5 eine schematische Draufsicht auf die Route eines Einsatzfahrzeugs.

In the figures show:

• 1 a schematic plan view of an inventive and / or special vehicle;
• 2 a schematic plan view of a section of a highway;
• 3 a schematic plan view of a section of a city street or country road;
• 4 a schematic representation of a system according to the invention; and
• 5 a schematic plan view of the route of an emergency vehicle.

In 1 is a schematic plan view of a mission and / or special vehicle 1 shown, the vehicle 1 over a body and wheels 3 features. The vehicle is driven by at least one drive, not shown.

On the roof 9 of the special vehicle 1 is a special signal unit 10 attached, the acoustic and visual signalers 26 includes to road users visually and acoustically on the special vehicle 1 to draw attention.

In the special signal unit 10 is enough space available to at least one computer device 5 and at least one radio transmitter unit 6 accommodate.

Furthermore, at least one antenna can also be used 21 in the special signal unit 10 be housed. Here are in the special signal unit 10 also a receiving unit 11 for detecting a position signal of the special vehicle 1 and a radio receiving module 25 accommodated. With the radio reception module 25 Periodically, a list of the currently strongest receivable radio stations is determined.

When driving with the special vehicle 1 in the direction of travel 17 becomes in a case of application a radio signal 7 with the radiation characteristic 20 in the direction of travel 17 and in the opposite direction 18 radiated. In addition, road users in the direction of travel 17 and subsequent road users behind the special vehicle received information.

In the embodiment according to 1 sends the special vehicle 1 mainly radio signals 7 directed forward and backward. About the controls 24 in the interior of the special vehicle 1 can use predefined messages or individually recorded messages as radio signals 7 be radiated.

Normally it is in the transverse direction 19 radiated signal strength significantly lower than the signal strength of the radio signal in the direction of travel 17 or opposite direction 18 , A ratio of the signal strengths is greater than 1: 2 and preferably 1: 4 and in particular greater than 1:10.

The invention enables the adjustment of the emission characteristic 20 , so that, for example, the radiation characteristic shown in dots 20 can be adjusted, preferably in the area front right of the special vehicle 1 Radio signals are output. This can be useful, for example, if the special vehicle 1 turn right onto another road or z. B. follows a curve of the road.

2 shows a plan view of a section of a highway 16 Here are three lanes 31 . 32 and 33 includes. While the first vehicles already formed a Rettungsgasse and on the outer lanes 31 and 33 have changed, the vehicle changes 41 Only just the lane from the lane 32 on the lane 31 ,

Through the radio signal 7 of the special vehicle 1 be the front of the special vehicle 1 moving vehicles 40 and 41 early on the approach of the special vehicle 1 informed, so the escape route 32 is formed earlier than it has been the case so far. Contrary to the direction of travel, the following vehicles are emitted by the radio signals radiated to the rear 7 warned, so that they are informed early.

3 shows a schematic plan view of a city street or highway, on the example, two vehicles 40 collide with each other and block a lane. The special vehicle 1 For example, be warned by only radiated to the rear radio signals early traffic ahead of the obstacle, so that the vehicle 41 according to already prepared for the bottleneck.

By sending corresponding radio signals also in the direction of travel, the oncoming traffic can be warned accordingly early in front of the bottleneck.

4 shows a schematic of the interconnection of a system according to the invention 100 which is a control center 50 and at least one mission or special vehicle 1 includes.

With the control unit 12 inside the passenger compartment of the special vehicle 1 can by activating controls 24 via the control device 29 the special signal unit sends a signal to the computer device 5 be passed on, which then via the antenna amplifier 28 the antennas 21 and 22 controls, in turn, a corresponding radio signal 7 send out.

Through the control center 50 It is centrally possible, a control signal 51 send out, for example, directly from the computer device 5 or an associated antenna. About the control signal 51 becomes the computing device 5 causes a corresponding radio signal via the antennas 21 . 22 send out. In such a variant, the crew of a special vehicle 1 do not become active in order to transmit radio signals. This can be automatically warned in front of an accident site and the like.

5 shows a schematic plan view of a landscape section on which, for example, a place 14 is located, through which various city streets run. Within the village is a special vehicle 1 Shown in which the range and the radiation characteristics 20 are set so that only a small area directly in front of and behind the special vehicle 1 Receives radio signals.

The special vehicle 1 however, which is here from below on the street 15 in the direction of the place 14 moves, plans according to the calculated route 23 turn left before entering the village. The position 13 of the special vehicle 1 is through the receiving unit 11 (see 1 ) determined on an ongoing basis. Accordingly, depending on the planned route 23 and / or the road a radiation characteristic 20a set, which has here approximately the form of a "banana". The radiation characteristic 20a is chosen so that even on the road after the turn of the special vehicle still a sufficiently strong radio signal is emitted, so that the road users there early on the approach of the special vehicle 1 be informed.

According to the route 23 drives the special vehicle 1 finally on the highway 16 on. There the special vehicle moves 1 with higher speed, so a different radiation characteristics 20 is set, in which the range is set to front and rear significantly larger, in order to reach vehicles ahead of early and warn subsequent vehicles early. If appropriate, the emission characteristic can be chosen so that vehicles are recessed on the opposite lane.

Overall, the invention provides an advantageous deployment and / or special vehicle 1 available to send out messages to vehicles within a certain emission characteristics. Depending on the location and situation, the range of the radio signal can be adjusted via the radiated signal strength, so that, for example, within a location, a shorter range than on the highway is set.

LIST OF REFERENCE NUMBERS

1

Emergency vehicle, special vehicle

2

body

3

bikes

4

Street

5

computer equipment

6

Remote sensor

7

radio signal

8th

reach

9

top, roof

10

Special signal unit

11

receiver unit

12

operating unit

13

position

14

place

15

Street

16

Highway

17

direction of travel

18

opposite direction

19

transversely

20

radiation

20a

radiation

21

antenna

22

antenna

23

route

24

operating element

25

Radio receiver module

26

signaler

27

receiver

28

antenna amplifier

29

control device

31

lane

32

lane

33

lane

40

vehicle

41

vehicle

50

control center

51

control signal

100

system

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202015000237 U1 [0002]

Claims (19)

Service and / or special vehicle (1) with a body (2) and a plurality of wheels (3) to drive at least on public roads (4), with a computer device (5) and a radio transmitter unit (6) at least for Broadcasting of radio signals (7) via z. B. VHF, characterized in that a signal strength of the radiated radio signal (7) variable and / or that the radio signal (7) is locally directed radiated. Special vehicle (1) to Claim 1 in which a special signal unit (10) mounted on the body and / or on a roof (9) of the body comprises signal generators (26) for emitting acoustic and / or visual warning signals, and wherein the radio transmitter unit (6) and / or the computer device ( 5) are housed in the special signal unit (10). Special vehicle (1) to Claim 1 or 2 in which a reception unit (11) for a location signal is included in order to determine a position (13) of the special vehicle (1) and wherein the signal strength of the radiated radio signal (7) is variable as a function of the position (13). Special vehicle (1) according to one of the preceding claims, wherein the computer device (5) is set up to emit a greater signal strength via the radio transmitter unit (6) if the special vehicle (1) is outside a location (14) than if the special vehicle (1) is located outside a location (14) Special vehicle (1) located within a place (14) or in close proximity to a place (14). Special vehicle (1) according to one of the two preceding claims, wherein from the position (13) at least one route type can be determined from a group of route types, the group of route types at least inner-city streets (15), highways, highways and motorway-like streets (16) includes. Special vehicle (1) according to the preceding claim, wherein the computer device (5) is adapted to emit a greater signal strength via the radio transmitter unit (6) if the special vehicle (1) is on a road (16) with more than two lanes (31 -33). Special vehicle (1) according to one of the preceding claims, wherein the computer device (5) is adapted to adjust the signal strength as a function of a driving speed and / or a measure of a traffic density. Special vehicle (1) according to one of the preceding claims, wherein a spatial radiation characteristic (20) is formed so that in the direction of travel (17) and / or against the direction of travel (19) a transmitted signal strength is considerably greater than transverse (19) to the direction of travel , Special vehicle (1) according to one of the preceding claims, wherein a spatial radiation characteristic (20) of the radio signal (7) is variable. Special vehicle (1) according to one of the preceding claims, wherein two or more antennas (21, 22) are included whose radio signals are controllable in order to set a desired spatial radiation characteristic (20). Special vehicle (1) according to one of the preceding claims, wherein at least one switchable directional antenna and / or at least one dipole antenna and / or at least one folded dipole antenna is included. Special vehicle (1) according to one of the preceding claims, wherein a spatial radiation characteristic (20) in dependence on a planned route (23) of the vehicle (1) and / or the road course is variable. Special vehicle (1) according to one of the preceding claims, wherein at least one operating element (24) is included, upon actuation of which a predefined and / or variable message can be transmitted via the radio signal (7). Special vehicle (1) according to one of the preceding claims, wherein the radio signal (7) is transmitted as a radio signal and the radio signal (7) is transmitted in chronological succession and / or simultaneously to at least two radio frequencies. Special vehicle (1) according to one of the preceding claims, wherein a radio receiving module (25) is included, with which the transmission frequencies of a number of locally receivable radio stations can be determined and wherein the radio signal (7) is emitted on the number of determined transmission frequencies. Special vehicle (1) according to one of the preceding claims, wherein the radio signal (7) a traffic signal is sent to set a receiving radio to traffic reception. System (100) comprising at least one control station (50) and at least one deployment and / or special vehicle (1) according to one of the preceding claims, wherein from the control center (50) from control signals (51) are output, which by a receiver (27 ) of the service and / or special vehicle (1) are received and wherein the Computer device (5) is set up and configured to control the radio transmitter unit (6) and to emit radio signals (7). System (100) according to the preceding claim, wherein the control center (50) via data signals current position data of the mission and / or special vehicle (1) receives and controls the radio signal (7) by means of the position data and changes a signal strength of the radiated radio signal during operation and / or a spatial radiation characteristic (20) of the radiated radio signal (7) changed. Method for transmitting radio signals (7) of emergency and / or special vehicles (1) in order to provide other road users (40) with information, instructions and / or data, at least on public roads (4), with a computer device (4 ) controlled by a radio transmitter unit (6) radio signals (7) are emitted, characterized in that depending on external conditions, a signal strength of the radiated radio signal (7) changed during operation and / or a spatial radiation characteristic (20) of the radiated radio signal (7) becomes.

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