DE102007057818A1 - Information e.g. data about road works, transmitting method for e.g. passenger car, involves feeding optical and/or acoustic sensible actuators e.g. LEDs, as indicators corresponding to situation - Google Patents

Abstract

The method involves providing a coordinate-like assignable differentiating signal by sensors (2) of an information system. A data converter (3) is assigned with a host computer (4), where an alignment with a reference-normal is carried out in the data converter. A specific signal is generated based on a comparison result between the alignment and the reference-normal. Optical and/or acoustic sensible actuators (5) e.g. LEDs, are feed as indicators in the form of display corresponding to a situation. Information for a national-wide traffic information provider is detected and documented. An independent claim is also included for a device for implementing a method for transmitting information to a driver of a vehicle on a road.

Description

The The invention relates to an information system comprising telematics components can be upgraded, for the leaders of vehicles and thus the safety equipment of roads, highways and the like driveways.

Current technical developments for influencing traffic and increasing traffic safety are pursued in the automotive industry with the installation of intelligent driver assistance systems in the respective vehicles, in which the integration of as many functions as possible into the vehicle electronics takes place. Thus, it is common for moving vehicles to have such facilities that there is communication with the environment by registra- tion of environmental conditions relevant to the specific vehicle via regularly installed in-vehicle facilities and on the basis of determined values relative to base values Derivatives for the operation of the respective vehicle are taken. Such is exemplified in the publication DE 10 2005 051 520 A1 described.

Other Technology projects are called steer by wire, developed brake by wire and similar adaptations. The Concept in the vehicle is supplemented by highly sensitive laser, infrared and microwave technology as well as GPS and WLAN based information and data transmission systems.

in addition comes the principle of car to car communication as information sharing between the vehicles themselves. This is the introduction Such solutions tend to be longer term in upper middle class and luxury cars as well as makes sense economically in trucks.

It has already been suggested that via an offset component on the guardrail (Leitpost with light emitting diode array) a signal system is controlled so that one of the guardrail towering Hazard warning lights on the guardrail possible danger situations should signal in advance. This solution was separate over Cable installed in the ground, and only the indicator was built on the previous guardrail in addition. Of the Installation effort weighed the functional results and the improvements not in traffic safety.

As well It is known that along traffic routes individual states, such as temperature and the like detected and regularly be displayed directly on the spot.

task The invention is therefore a method and a suitable device to develop, with the help of which the driver on his Driveway important dynamic environment, traffic and safety information directly on site via a roadside information system Consideration also constantly changing Environmental, traffic and safety information transmitted in real time taking into account conflict-free driving is given and in the case of a specific preparation of the vehicle can be waived.

The Task is solved by walking along a street, a Highway and / or the like way more than one of the states Temperature, fog, radar, traffic density, airspeed of a relevant Vehicle, distance of relevant vehicle to others, information the volume of space of a detected vehicle, relevant traffic guidance notes, Construction sites, including those that are regularly used as hiking sites be called, congestion information and locks, also suddenly through Accidents caused by in a passive protection device integrated sensors detected as state-related traffic data become. This passive protection device can be a guardrail, a concrete wall and the like. About these sensors become one respective information base assignable distinctive electronic signals that are both analog and digital in nature can be provided. These become a data converter supplied with a host computer. Here is a comparison with Reference standards. As a result of comparison with these reference standards The resulting specific signals become conflict-related and state-related optical and / or audible perceptible display elements in shape representations corresponding to the respective situation, the indicative Character, and used to control them. The forwarding after the registration takes place through the use a data bus running at 10 kbit / sec. or larger running, allowing the collection of relevant traffic data and Derivation of consequences promptly at intervals that are very clear in the range below the hundredths of a second range takes place.

A inventive preferred variant provides that arranged between host computer and sensors communication controller are. These serve all of the respective assemblies coming information is constantly interpreted and defined be, among themselves and to the host computer or from the host computer Coming information and instructions to the modules communicates become. As a rule, a communication controller itself is more integral Part of the corresponding module.

The host computer archives collected data, processes these and / or redirects them. From the incoming information from the sensors and other information and signal sources warnings and warnings are generated to the road users and provided actuators and display elements for documentation. The master computer can thus control the activities which the system according to the invention is to perform or sets warning messages, status information about the media of telecommunications (ISDN, GSM, GPRS, UMTS ...) to z. B. traffic control centers. In the feedback this also includes special conditions indicating special signals.

As well It is possible for certain sections to be self-sufficient work by the sensors assigned to the communication controller itself and regardless of the existing host from the Sensor signals and stored in the communication controllers Reference standards the actuators are controlled. Likewise, a collaboration directly possible with other communication controllers. Thereby can reduce the reaction time on particularly critical sections of the infrastructure be lowered considerably.

A Apparatus for carrying out the method is characterized characterized in that a conventional passive protective device having continuously closed channels. These channels are either integrated into a guardrail, as in the intellectual property literature already proposed, or a conventional passive protection device is retrospective with an installation-capable duct system been provided. In this channel system sensors are integrated, with their working direction facing the track and the serve events for early warning of road users to be detected and evaluated by the master computer to deliver. This will provide warnings and warnings to road users generated.

in the some of these are such sensors, about the temperature, fog, radar, by comparing several signals a significant vehicle over a period of time Own speed of a relevant vehicle, distance of one relevant vehicle to others and the number of passing vehicles per time unit and thus the traffic density is registered.

The Sensors can also be optical sensors for perception the pictorial detection of a vehicle and the subsequent Scanning his dimensions to determine his cubature.

Of others are radio interfaces or similar devices present, with the help of which detected signals one for one certain route competent host computers are transferred by comparing with reference normal decisions in the Appropriately meaningful signals are taken. Furthermore, the channels are connected to the sensors Data lines integrated as well as the energy supply of the sensors and the like elements serving lines exist. The master computer can also via ent speaking interfaces with the other information platforms, such as GSM or GPRS, interacting be educated.

In usually four lines are required, namely two metallic cores for power supply and two more metallic, preferably made of copper, with the function of Data bus. Here is a separate contact-safe power supply available. If this is the case, a shielding of the data line is very appropriate, on the one hand an influence of the same from the outside, For example, in the case of vandalism a non-excludable damaging Influence by an electromagnetic weapon, as well as to another a non-excludable disturbing radiation to avoid. Likewise here is a high security against influences of Given vibrations.

Of the Data bus is designed to run at 10 kbit / sec. or larger running. This is an update rate in the ms range available.

Around the sensitivity to non-exclude vandalism influences to reduce, the data line can also be implemented as a fiber optic cable be, which in comparison to the metallic data line also higher Baud rates enabled. If the data is modulated onto the power supply line, a metallic two-wire cable may be used. in this connection However, there are special methods for signal conditioning and for Recovery required.

Preferably, at the connections of individual elements of the passive protection device, the individual sections contacting systems with length reserve, which can release a length reserve in case of violent contact and intrusion of a vehicle in the passive protection device. These components are not only for the guardrail itself, but also integrated into all leading lines. For example, these may be wire breakage sensors. Thus, in severe damage to the guardrail due to accidents, the electrical connection is maintained or when activating a connection monitoring or when disconnecting the electrical connection is an immediate information to the host and continue to the traffic monitoring. Thus, the Kontaktiersystem is also an important Informati onssensor for accurate crash detection and for quick initiation of auxiliary and safety measures. Preferably, there may be a coupling with external optical and / or acoustic signal devices in order to put them into operation and thus make the threatening defect of the system visually perceptible. Thus, the coordinates of the vulnerable connection for a space-related registered and representable and also easy to find by control or repair vehicles.

In The data lines of the communication controller are standard interfaces present to link to GPS information systems to be able to. This allows reference fix points to Supplementing the GPS data will be created. Furthermore there is the possibility, in addition to the optical displays communication elements between the information system and receivers in the vehicle use.

The The simplest form is that of a vehicle to be monitored has a unit that has a specific distinctive character digital signal can be fed and reflected there, so in the further the vehicle is characterizing bar and to be transmitted Environment information associated with this vehicle specifically can.

In a variant according to the invention is provided, a wireless communication interface, for example this is a blue toth interface, for information sharing on a receiver for installation or the Retrofitting in preferably small and medium-sized vehicles provided. The driver receives the recorded and detected traffic flow information and warnings compressed immediately in real time via this additional equipment displayed in the car or per head up display on the windshield projected.

In Another variant is the information in the navigation and transmitted vehicle control by telemetry or fed into the car to car communication. That would be in the last consequence also their use for active interventions in the vehicle guidance given (steer by wire or brake by wire or by wireless LAN). This is also possible with the integrated into a vehicle digital tachograph, ie the tachograph to communicate, to determine its status and control the driving time.

In defined preferably carries small distances the passive guard actuators. These are signaling devices, for example, pictograms that should be illuminated and the like display devices, also mechanical nature. Preferably, LEDs are used which by suitably controlling their color changing are formed. These are connected to the master computer - the can also be wireless - and serve the mediation the notes and information from the evaluation of the processed data to the driver. There are adapted to the respective Situation at the place of deployment different stages of the display.

in the The simplest case has yellow LED fields with flashing function indicate an undefined hazard situation. Likewise Diode fields with color change to symbol effect different Warning levels appealing (green - no danger, yellow - caution! Too high speed, red - accident or traffic jam ahead) serve.

A Another possibility is the presentation of the relevant Information on a LED display panel in the vicinity of the passive Protective device in the form of pictograms or as continuous text.

By Use of the guardrail will provide traffic-accompanying information delivered in co-ordinate form. Especially In traffic-sensitive areas, traffic safety becomes crucial elevated. In area expansion is the proposed System suitable, traffic flows regionally adapted to time rhythms, Weather conditions and traffic in real time to influence it as an alternative to constant speed limits on highways and highways through competent administrations is required.

As well can provide information for supraregional Traffic information providers are recorded and documented.

The proposed solution has a high vandalism security because all the relevant components in black-box-like housings can be accommodated.

each the energy supply units used is the coupling point between the energy source and the consumers of the passive protection device integrated system components and serves the defined feeder the energy (current / voltage). When using a low voltage is at longer lengths of energy supply a frequent feed and / or reinforcement possible and appropriate. Furthermore are coupling possibilities of other energy sources (eg accumulators, solar stations, etc.) designed to the possibility Parameterization and query of the device status by the Host computer, a communication controller or by service devices and / or - to create staff.

With The energy and data feed can be data converters coupled, for amplification and / or modulation serve the obtained signals. This is especially true for long transmission distances advantageous. The data converter is therefore for the preparation of the Level ratios of energy and data needed and placed within well-defined sections.

With the mentioned possibilities is the mentioned one Solution has become more universal and speaks broad market areas and larger market volumes. Execution in the form of compact units is the specific requirements well adapted and made possible on highways and highways a high degree of prefabrication. It is also essential that already existing infrastructure of roads in the form of various passive guards can be used. In this will be the media and functional channel integrated, the one Power supply and data bus system and devices, Display elements, sensors and actuators for driver assistance and traffic telematics systems in real time. This is beside an intelligent security structure an active traffic control Real-time on-site and increased traffic safety where. After a crash is an intervention of an accident service as soon as possible. The communication and traffic information infrastructure is einregindbar nationwide. It is a step by step expandable Interaction between vehicle and infrastructure or human-machine interfaces possible. The cost structure is in proportion low to known systems. That refers to the efficiency the manufacturing and repair costs alike.

By The connection to the master computer can be a communication of various installed areas among themselves or to regional and supraregional Systems can be realized via radio data transmission. This must be the proposed Information system not continuously installed along the crash barriers but can also sometimes sections of focal points, construction sites or other traffic-influencing entities in the sense of networked intelligent train sections are used.

The Invention will hereinafter be an embodiment be explained in more detail. In the associated Drawing shows

1 the basic arrangement of the individual assemblies zuein other in an exemplary ausgestaltet variant of the present invention proposed guard rail system.

A well-known guard rail system is continuous with a closed channel 1 made of a known impact-resistant plastic. In this guard rail system are directed with their detection direction in the direction of the track to be controlled sensors 2 arranged. These sensors 2 are used to collect values for fog, humidity, temperature and speed.

The distance of the arrangement of the individual sensors 2 to each other depends on the specific case. Sensors for fog and humidity are installed in relatively short distances, which should not be greater than 50 m, in the case of a climatically difficult route. sensors 2 to register the temperature on mountainous roads are more often to install than on climatically uncomplicated routes of a highway located in the lowlands. Likewise are optical sensors 3 to detect the imaging and the subsequent scanning of a vehicle to determine its cubature and resulting inferences on the size and the resulting dynamic values before an exit of a highway depending on the curve radius located there more frequently to determine a tendency of the speed development and to cause a derivative for the signaling of a non-excludable hazard.

At one in the canal 1 inserted electrical line is a voltage of 42 V at. This is where the sensors become 2 powered. Furthermore, there is a data cable made of copper, which is shielded against disturbing radiation and against the influence of interfering radiation from the outside and which works as a data bus with a high baud rate. This is first with a data converter 3 connected, in which a comparison of the data obtained takes place. As far as a deviation can be deduced from this comparison with standards, the resulting signals become a host computer 5 transferred. This can be network-based or in the form of wireless transmission. In the master computer 5 a further evaluation is made depending on time and space and a storage of accumulated data. On the basis of the further evaluation carried out by the master computer and possibly necessary linkage, signals are triggered which are for information about actuators 6 be displayed. By way of example, black ice is recognized. On the basis of stored normals, it can be seen that an approaching lorry inadvertently runs the risk of leaving the lane in the event of another upcoming section of lane.

On the guardrail are therefore at a distance of 10 meters as actuators 6 Warning lights attached, each with a three-level threshold-controlled diode field in the colors green yellow red, each individually controllable are equipped. By controlling the frequency of the diodes via the master computer 5 For example, if the vehicle in question is accompanied by the color "yellow", the driver of this vehicle will then have the opportunity to perceive that the possibility of a crash is very high, and if it is determined over time that there is even an increase in speed, the color " Yellow "switched to a vehicle accompanying" red ".

Of course, there are other actors 6 as the already mentioned diodes possible. For example, this can also be a parallel to the diodes switched light panel, be broadcast on the perceptible signals in writing. It may also be flashing, depending on the urgency of the information.

Through the sensors 2 detected signals are in the host computer 5 stored in order to further enable the statistical recording to derive further traffic management measures.

At the joints of the guardrails elements are formed, which allow the forcible penetration of a vehicle in these within limits a change in length. This allows disruptive forces to be reduced without the system losing its effectiveness. Furthermore, there are sensors 2 designed so that the crash occurred the host computer 5 is signaled.

The master computer 5 has an interface that retrieves captured data over the Internet.

1

channel

2

sensors

3

data converters

4

master computer

5

actuators

6

contacting system with length reserve

7

communications controller

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 102005051520 A1 [0002]

Claims (24)

A method of informing the drivers of vehicles on roads and the like, which can be upgraded with telematics components, and thus the safety equipment of roads, highways and the like routes, in the important dynamic environment, traffic and safety information directly on the ground via a roadside information system are transmitted and evaluated, characterized in that - along a travel path and / or on the same at least one of the states of temperature, fog, traffic density, airspeed of a passing vehicle, information on the volume of a detected vehicle by integrated into the guideway passive protection integrated Sensors ( 2 ), - via these sensors ( 2 ) an information system can be provided with coordinates that can be assigned in a co-ordinate manner, - these are assigned to a data converter ( 3 ) with a host computer ( 4 ), - in the data converter ( 3 ) a comparison with reference standards takes place and - specific signals arising as a result of the comparison with these reference standards are generated and - these conflict-related and condition-related optical and / or acoustically perceptible actuators ( 5 ) supplied as display elements in the form of the respective situation corresponding representations and there for Informa tion of the track users are documented. Method according to claim 1, characterized in that that - the state-related determination of traffic data promptly in sub-hundredths of a second intervals he follows. Method according to one of claims 1 or 2, characterized in that - the signals corresponding to the traffic data a communication controller ( 7 ) and be interpreted and defined by this. Method according to claim 3, characterized in that - in the communication controller ( 7 ) existing reference standards by this directly a control of actuators ( 5 ) he follows. Method according to claim 3, characterized in that - in the communication controller ( 7 ) existing reference standards through this directly a control of located in other working levels communication controllers ( 7 ) he follows. Method according to one of claims 1 to 5, characterized in that - from the recorded Data alerts and alerts are generated to road users become. Device for carrying out the method according to one of claims 1 to 6, characterized in that - a conventional passive protective device closed channels ( 1 ), - in these with their direction of perception of the roadway facing sensors ( 2 ), the conditions of temperature, fog, traffic density, airspeed of a working direction of the sensors ( 2 ) passing vehicle, information on the volume of space of a detected vehicle are formed adequately registering signals, - the sensors ( 2 ) Communication Controller ( 7 ), - into the closed channels ( 1 ) of the passive protective device are integrated into an energy supply and data bus system serving lines, - with these a host computer ( 4 ), which, after comparison with basic standards, is designed to trigger and indicate decisions in the sense of the generation of suitable signals for warning the driver and / or other traffic-guiding systems. Apparatus according to claim 7, characterized in that - the communication interfaces between data lines and host computer ( 4 ) are configured wirelessly acting. Device according to one of claims 7 or 8, characterized in that - through the data line to be transmitted signals on the power supply line are modulated. Device according to one of claims 7 or 8, characterized in that - the power supply line and the data line are made metallic and - the Data line against magnetic and the like influences and shielded against self-emission is installed. Device according to one of claims 7 and 9 or 10, characterized in that - the Data line is made in fiberglass. Device according to one of claims 7 to 11, characterized in that - in the compounds of individual elements of the guard rail system Kontaktiersysteme with length reserve ( 6 ) are integrated. Device according to one of claims 7 to 12, characterized in that - in the connecting elements of the power supply and data bus systems, a length reserve releasing components are integrated. Device according to one of claims 7 to 13, characterized in that - the passive protective device with as actuators ( 5 ) is provided externally perceptible optical and / or acoustic signaling devices. Apparatus according to claim 14, characterized in that - the externally perceptible optical and / or acoustic signal devices electrically / electronically with the host computer ( 4 ) are connected. Device according to one of claims 7 to 15, characterized in that - in the data lines at least one link with GPS information systems integrated standard interfaces. Device according to one of claims 7 to 16, characterized in that - Communication elements between the information system and receiving devices in the Vehicle acting are integrated into the data lines. Device according to one of claims 7 to 16, characterized in that - this one on detected in a vehicle existing receiver Traffic flow information is set up. Device according to one of claims 7 to 18, characterized in that - in the passive protective device as actuators ( 5 ) indicating elements have a pictogram representation. Device according to one of claims 7 to 19, characterized in that - in the guard rail system as actuators ( 5 ) indicating elements of a mechanical nature. Device according to one of claims 7 to 20, characterized in that - the actuators ( 5 ) are in the guard rail system LED, which are designed by appropriate control their color changing. Device according to one of claims 7 to 20, characterized in that - the actuators ( 5 ) in the passive protection device are body text conveying devices. Device according to one of claims 7 to 22, characterized in that - the energy supply system Coupling possibilities for other self-sufficient energy sources such as accumulators, solar stations and the like. Device according to one of claims 7 to 22, characterized in that - with the power supply and / or data bus system for amplifying and / or modulating the signals obtained data converter ( 3 ) are coupled.