WO2012173484A1

WO2012173484A1 - Method for warning road users and a corresponding warning system for warning road users

Info

Publication number: WO2012173484A1
Application number: PCT/NL2012/050425
Authority: WO
Inventors: Robert Jacobus Franciscus Johannes VAN WESENBEECK
Original assignee: Van Wesenbeeck Robert Jacobus Franciscus Johannes
Priority date: 2011-06-17
Filing date: 2012-06-18
Publication date: 2012-12-20
Also published as: EP2721594A1; NL1038875C2

Abstract

The invention relates to a method for warning road users comprising the steps of placing at least one beacon, having a transmitting range, at a fixed predetermined location. It comprises the step of programming the at least one beacon, by transmitting programming signals to the at least one beacon and receiving the programming signals by the at least one beacon, wherein the at least one beacon is located in the transmitting range of the programming means. It comprises transmitting warning signals from the at least one beacon, wherein the warning signals are representative to the received programming signals. It comprises receiving the warning signals from the at least one beacon by at least one receiving means carried by a road user, wherein the receiving means is located in the transmitting range of the at least one beacon. It comprises the step of collecting the at least one beacon.

Description

Title: Method for warning road users and a corresponding warning system for warning road users

The invention relates to a method for warning road users, in particular cyclists. It further relates to a warning system for warning road users. Road users, in particular cyclists who follow a predetermined track, make use of warnings to decrease a risk of accidents. For example, example during a cycling course, it is known that cyclists are warned for possible hazardous situations.

Drawback of current methods and warning systems is that they only warn at the location itself and not at distance from that location. For example, cyclists are warned for a traffic island on the road by means of a steward waving flags, for example red flags. The steward is located at the same location as the hazard, in this case the traffic island.

Additionally, the steward blows a whistle to indicate the hazardous situation. However, often cyclists race with at least one ear plug and cannot hear the whistle signal that is given by the steward.

Cyclist teams currently use radio communication devices in order to talk to cyclists or warn them against hazards. Currently the hazard warning is largely ineffective because team leaders move behind the cyclists and cannot report about hazards that lay ahead. At the same time, some sporting organizations are working on forbidding these communication methods because they influence the cycling sport. Fact is that in the cycling sport, talent, training and intelligence are key factors and the last has become unimportant today.

It is an object of the present invention to eliminate abovementioned problems or at least provide an alternative.

In particular it is an object of the present invention to provide a method for warning road users that is adaptable to changing hazardous situations.

The object is achieved by a method for warning road users according to claim 1.

This method for warning road users comprising the steps of placing at least one beacon, having a transmitting range, at a fixed predetermined location along a predetermined track.

Preferably, the road users are cyclists who participate in an organized cycling race. Before or during the race, before the first cyclists pass through, the beacons are placed at the fixed predetermined locations along the predetermine track. For example, the beacons are placed well before the start of the race, e.g. half an hour. In another example, the beacons are placed during the race, e.g. a few minutes before the first cyclists pass through.

A few minutes may for example be 1 to 5 minutes. The predetermined location is the location where a potential hazard may arise, for example a traffic island and/or a narrowing road. The predetermined track is the track corresponding to a route that the cyclist must follow during the cycling race. Each beacon has a transmitting range depending on a power source, e.g. battery, comprised in the beacon. Preferably, the transmitting range of the at least one beacon is 1 kilometre.

It further comprises the step of programming the at least one beacon, by transmitting programming signals from at least one programming means to the at least one beacon.

The programming means is operated by a operating person. Preferably, the operating person is an official, such as a member of the organization of the cycling race.

The operating person may also be a team leader. The programming means may be carried by the operating person and is preferably a hand held device, such as a laptop connected with a transmitting antenna. The programming means together with operating person may for example be moving in a car, e.g. a safety car, a motorcycle and/or any motorized vehicle.

Each programming means has a transmitting range, depending on a power source, e.g. battery of the programming means. Preferably, the transmitting range of the

programming means is 1 km.

Warning and/or information data representative for a surroundings situation of the respective beacon is entered by the operating person through an interface and is

incorporated into the programming signal such that it can be transmitted to the respective beacon.

For example, the surroundings situations may be wet road, a traffic island and/or any other hazardous situation. This typically is entered as warning data.

For example, the surroundings situations may be the finish, a provisioning location, and/or a location where points can be gathered by whoever arrives at this points at first (sprint points).

The method comprises the step of receiving the programming signals by the at least one beacon. The at least one beacon is located in the transmitting range of the

programming means, such that the at least one beacon can be programmed, i.e. receiving the programming signals.

The method further comprises the step of transmitting warning signals from the at least one beacon. The warning signal may be a relay of the program signals.

For example, warning and/or information data incorporated into the programming signals is relayed into the warning signal.

The warning signals are therefore representative to, i.e. depending on, the received programming signals. The method comprises the step of receiving the warning signals from the at least one beacon by at least one receiving means carried by a road user.

Preferably, each road user, e.g. each cyclist who participates in the cycling game, carries one receiving means. When the cyclist moves into the transmitting range of the beacon it is able to receive the warning signals as the receiving means is located in the transmitting range of the respective beacon.

Preferably, the warning and/or information data is decoded by the receiving means and displayed on an user interface.

The method also comprises the step of collecting the at least one beacon. When all cyclists have passed the beacon, for example when they have finished the cycling race as they have cycled along the predefined track, there is no need anymore for warning the cyclists.

The beacons are therefore collected, for example by a steward, an official or a team leader.

Preferably, the beacons are collected by a person who drives, e.g. by car, directly behind a last cyclist in the race.

For example, afterwards, a supervisor using a programming means may after the cyclists, e.g. racers have passed a hazard, pick up the beacon in preparation for the next event.

Having a beacon placed at the fixed predetermined location, allows a more flexible and secure warning to the road users. It is advantageous as the beacon may be placed sufficiently prior to a start of the cycling race. Moreover, it may be more efficient as it is not necessary to place beacons along the complete predefined track, but only at hazardous locations or locations that are otherwise interesting to know, such as the finish. Having the programming means allows a dynamic update of the beacons. The programming means may for example moving well before the road user. Another programming means may move more closer to the road users or in between the road users to program a respective beacon if a surrounding situation has been changed.

Therefore, the invention provides an improved method for warning road users that is adaptable to changing hazardous situations.

In an embodiment of the method according to the invention the programming signals comprise warning and/or information data representative to a surroundings situation of the at least one beacon.

Warning data is representative for a hazardous surroundings situation. For example, along a predefined track or course of a cycling race, danger areas may exist. For example dangerously parked cars, central reserves, roundabouts and sharp turns that need to be negotiated. The warning data used in the method may also relate to warnings for wet road surfaces, 60% bottlenecks in the road, moss growth on the road, partial descends with hazards at the left side, railroad crossings at 30° at the left or right, etc. The hazardous surroundings situations are not limited to the above mentioned examples.

Information data is representative to other types of surroundings situations. For example, at the same time the method allows for providing information about a group of 6 cyclists, i.e. racers, who are moving 1.20 minutes ahead, supply posts, etc. The beacons can be reprogrammed by means of received programming signals, so that beacons can be adjusted so they can send out different warning signals respectively comprising different warning and/or information data representative for respective surroundings situations.

For example, a supervisor who drives 500 meters ahead of the cyclists, i.e. racers, may program the beacons by means of a programming means.

Preferably, in an embodiment of the method according to the invention the method further comprising the step of transmitting a confirmation signal from the at least one beacon to the at least one programming means. This allows a function check confirmation received by a person who operates the programming means, e.g. the supervisor.

In an embodiment of the method according to the invention, the warning signals comprise warning and/or information data representative to a surroundings situation of the at least one beacon. The warning data and information data is representative to the

surroundings situation and is transmitted to the receiving means, when the receiving means is located in the transmitting range of the at least beacon.

For example, the warning data and information data is modulated into the warning signals by means of coding. The receiving means receive the warning signal and extracts the code sent out by the beacon. The corresponding warning data and information data may for example be played a user selected language, selectable on the receiving means.

In an embodiment of the method according to the invention, the step of programming the at least one beacon comprises moving the programming means towards the at least one beacon such that the at least one beacon falls within the transmitting range of the

programming means.

This is advantageous as it allows a beacon to be reprogrammed when a change of corresponding surroundings situation occurs. For example, the programming means is moved towards the beacon by means of a motorized vehicle. This is advantageous as it allows a relatively fast update or reprogramming of the beacon. In another example, more than one programming means are used to program and/or reprogram a respective beacon. This may for example be a closest programming means with respect to the beacon.

Preferably, during a cycling race, a so called safety car comprises a programming means and drives before a first cyclist in the cycling range. For example, 2 to 12 minutes ahead. Further preferably, a first car, for example an officials car, drives between cyclists. The first car also comprises a programming means and this allows programming a beacon that is sufficiently close, e.g. a beacon that falls within a transmitting range of the respective programming means. This allows for programming the beacon such that cyclists that come after the first car may be provided with an updated warning signal transmitted by the updated beacon. In another example, the first car is a team leader car.

In another preference, a last car is driving behind the last cyclists of the cycling race.

The last car also comprises a programming unit and transmits a programming signal representative to switching off the beacon. Before, switching off the beacon the

programming signal may be representative for a localization request. The beacon receiving the localization requests transmits a warning signal comprising the location info, e.g. GPS coordinates of the beacon. The last car receiving this warning signal is able to locate the beacon and collect the beacon.

In an embodiment of the method according to the invention, the step of receiving the warning signals comprises moving the receiving means towards the at least one beacon such that the receiving means falls within the transmitting range of the at least one beacon.

The receiving means only receive warning signals when they are sufficiently close to the beacon, e.g. fall within the transmitting range of the beacon.

Preferably, the receiving means worn by cyclists participating in the cycling race. The cyclists follow the predetermined track, e.g. the course of the cycling race. Beacons are placed along the predetermined track and provide warning signals, representative for a respective surroundings situation of the respective location of the beacon.

In another preference, the receiving means comprises a display that is fitted by means of a cycle mount on the bicycle and displays, e.g. indicates a respective hazard.

In another preference, the receiving means comprises a loudspeaker that plays a warning sound representative to the surroundings situation. This is achieved by the loudspeaker, e.g. a headphone or earplugs fitted with speakers.

In another preference, the receiving means is configured to also indicate a type of hazard. Type's for example may be a wet road surface, a narrowing of the road, a railway crossing, a traffic island, dangerously parked cars, central reserves, roundabouts and/or sharp turns that need to be negotiated, etc.

Preferably, each beacon sends its own warning signal representative to its surroundings situation. Therefore, beacons transmit different warning signals in order to accomplish this. In another example, a control unit of the receiving means is configured to provide a hazard warning in several languages. A desired language may be selected by a user of the receiving means, e.g. the cyclist.

In an embodiment of the method according to the invention, the step of placing the at least one beacon comprises placing a first beacon, having a first beacon transmitting range and placing a second beacon, having a second beacon transmitting range, wherein the first beacon is placed within the second beacon transmitting range.

This is advantageous as it allows for communication between two beacons, e.g. between the first beacon and the second beacon. This allows for additional functionality as a surroundings situation near the first beacon can be transmitted to the second beacon and vice versa.

In a further embodiment, the first beacon is placed within the second beacon transmitting range.

This is advantageous as it allows communication from the first beacon to the second beacon as well as from the second beacon to the first beacon.

Preferably, the transmitting range of the first beacon as well as the second beacon have an equal radius, i.e. cover a same area.

A further advantage is that a programming means, which is inside the transmitting range of the first beacon, but outside the transmitting range of the second beacon, still is able to program the second beacon.

In an embodiment of the method according to the invention the method further comprising the step of moving at least one programming means by a motorized vehicle.

The motorized vehicle for example is a car, a helicopter, a motorcycle and/or any type of vehicle comprising a power source. This is advantageous as it allows the

programming means to move relatively fast, compared to the road users, to program, e.g. update, a beacon.

In an embodiment of the method according to the invention, the step of programming the at least one beacon comprises the steps of transmitting programming signals to a first beacon and receiving the programming signals by the first beacon and transmitting programming signals, being updated in time, to the first beacon and receiving the updated programming signals by the first beacon.

This is advantageous as it allows the first beacon being reprogrammed, e.g. updated when the surroundings situation near the first beacon is changed.

In an embodiment of the method according to the invention the method further comprises the step of transmitting programming signals by a first beacon and receiving the programming signals from the first beacon by beacons placed within the transmitting range of the first beacon. This is advantageous as it allows beacons nearby the first beacon to transmit warning signals that are also representative for the surroundings situation of the first beacon. In other words, it copies the surroundings situation of the first beacon to all other beacons within the transmitting range of the first beacon.

Preferably, the programming signals from the first beacon are received by all beacons placed within the transmitting range of the first beacon.

This is advantageous as it allows all beacons in the transmitting range of the first beacon to transmit warning signals that are also representative for the surroundings situation of the first beacon.

In a further embodiment, the first beacon may be any beacon along the predefined track. For example, the first beacon may also be the last beacon along the predefined track. Therefore, it is foreseen that the method comprises the step of transmitting programming signals by a last beacon and/or any beacon with number n (n may be any real number) and receiving the programming signals from the last beacon and/or any beacon with number n placed within its transmitting range.

In an embodiment of the method according to the invention, the step of placing at least one beacon comprises placing n+1 beacons, each beacon having a transmitting range, and wherein beacon n+1 is placed such that beacon n+1 falls within the transmitting range of beacon n.

Here, n is any real number from 1 to infinity. This allows for building a chain of n+1 beacons. Preferably, the n+1 beacons are placed such that they cover the predefined track, e.g. course of the cycling game, in its entirety.

This is advantageous as it allows communication between the first beacon at a beginning of the chain and beacon with number n+1 at an end of the chain.

For example beacon 2 falls within the transmitting range of beacon 1. Beacon 3 falls within the transmitting range of beacon 2. Therefore, beacon 1 is able to communicate with beacon 3, although beacon 3 may be outside the transmitting range of beacon 1.

For example, n is equal to 10. In another example, n is equal to 100. Typically, a transmitting range of one beacon is 1 km. For a cycling game having a length of a predefined track of in total 200 km, an order magnitude of n is therefore 200. One beacon having a transmitting range of 1 km covers an area in a form of a circle with a radius of 1 km. In terms of length it therefore covers 1 km to one direction and 1 km in another, e.g. opposite, direction. In total one beacon may cover a 2 km length of the predefined track. To allow adjacent beacons to communicate with each other, a beacon is placed within the 1 km radius of an adjacent beacon.

In an embodiment of the method according to the invention, the step of placing at least one beacon comprises placing n+1 beacons, wherein warning and/or information data assigned to beacon n+1 is also comprised in warning and/or information data of beacon n+1-i and beacon n+1 +i.

Here, n is any real number from 1 to infinity. Here, i is any positive real number however smaller or equal to n.

This allows beacon nearby beacon n to also comprise warning and/or information data representative to the surroundings situation of beacon n.

For example, when n is equal to 99, a total of 100 beacons is placed along the predefined track. When i is equal to one, this results in that beacon 49 as well as beacon 51 comprise warning and/or information data representative to the surroundings situation of beacon 50.

In another example, when i is equal to 5, this results in that beacon 55 as well as beacon 45 comprises warning and/or information data representative to the surroundings situation of beacon 50.

Preferably, in a further embodiment, warning and/or information data of beacon n+1 is also comprised in the beacons between beacon n+1 -i and beacon n+1 +i. In an example, when i is equal to 5, this results in that beacons 45, 46, 47, 48, 49 as well as 51 , 52, 53, 54, 55 comprise warning and/or information data representative to the surroundings situation of beacon 50. In an embodiment of the method according to the invention, the warning signals and programming signals comprise position data representative to a position of a surroundings situation of the at least one beacon and/or a position of the at least one beacon and/or a position of the at least one programming means and/or a position of the at least one receiving means.

This is advantageous as this allows the road user to know where an absolute location of a surroundings situation and/or a beacon and/or a programming means and or another receiving means is.

In a further embodiment, the position data and the corresponding type of warning and/or information is received by programming means or another receiving means and digitally displayed on a map. For example, all, or a combination of, surroundings situations, beacons, programming means and/or receiving means are displayed on a single display.

In a further embodiment, a beacon and/or a programming means and/or a receiver means comprises a memory unit suitable for storing warning and/or information data. When a programming means and/or a receiving means fall within corresponding respective transmitting ranges, the programming and/or receiving means request the warning and/or information data stored in the memory unit. The programming means and/or receiving means collect the warning and/or information data stored in the respective memory units. This warning and/or information data, preferably assigned with position data is being displayed on the programming and/or receiving means.

In an embodiment every beacon sends a warning signal to an approaching receiving means at 200m and 100m intervals. The beacons are provided with a GPS-unit and a compass besides a radio signalling function. The radio signalling function allows the receiving means to know its relative position with respect to the beacon. The GPS-unit provide an absolute position of the beacon. Together with the compass and/or the radio signalling function, the receiving means may be provided with its absolute position. For this purpose, the receiving means communicates with the beacon and the beacon is configured to determine the absolute and/or relative position of the receiving means with respect to the beacon. This is transmitted in the warning signal to the receiving means.

In an embodiment of the method according to the invention the method further comprising the step of relaying a two-way communication signal by the at least one beacon. It further comprises the step of communicating the two-way communication between at least one of the receiving means and/or at least one of the programming means.

The programming signals and warning signal are used for communication. This allows communicating, e.g. by voice, between receiving means and/or programming means.

The receiving means are therefore fitted with radio communication so that team leaders may communicate with their racers. This preferably is a 2-way communication. Additionally, it may be possible to activate and deactivate communication, as well as selecting between two-way communication and one-way communication.

In a further embodiment, the beacons can be configured to transmit the

communication in different frequencies. For example, 25 different frequencies to avoid interference between teams that use the same beacons. Also there is a possibility for a supervisor or race official to communicate directly with all racers or racers of several teams.

In a further embodiment, the road user carrying the receiving means receives the warning signals, but is also facilitated with a 1-way or 2-way communication between the road user, e.g. racer, and a supervisor and or any third party.

The invention further relates to a warning system for road users, in particular suitable for performing the method according to one or more of the above embodiments.

Warning systems for road users are known for example US-201 1/0090093 discloses a warning system for a pedestrian which warns the pedestrian that a vehicle is nearby. For this purpose the pedestrian carries a transmitter and receiver for communicating a global position of the pedestrian and the vehicle also carries a transmitter and receiver for communicating a global position of the vehicle. An alert is provided to at least one of the pedestrian or the vehicle indicating a presence of the pedestrian or vehicle based on the respective global positions of the pedestrian and the vehicle. Drawback of this system is that warnings for the pedestrian are limited to information present or generated in the vehicle.

It is an object of the present invention to eliminate abovementioned problem or at least provide an alternative.

In particular it is an object of the present invention to provide a warning system for road users that is adaptable to changing hazardous situations.

The object is achieved by a warning system for road users according to claim 15. The warning system comprises a beacon comprising a control unit configured for receiving programming signals and configured for transmitting warning signals.

Preferably, the warning system comprises multiple beacons. The beacons are suitable for placing along a predetermined location along a predefined track or path.

It further comprises a receiving means comprising a control unit configured for receiving the warning signals and providing the warning signals to a user interface.

Preferably, the warning system comprises multiple receiving means. The receiving means are each carried by a road user, e.g. a cyclist. The road user follows the predefined track. Preferably, the beacon has a transmitting range and when the receiving means falls within the transmitting range of the beacon it receives the warning signal. The warning signal warns or informs the road user about possible hazardous situations at the right moment in time in order to prevent accidents. The warning system for warns road user who follow the predetermined track, for example a cycling race along a predefined course.

At the same time beacons have been placed along the predefined track, these beacons send out the warning signal to those road users who are approaching a possible hazard area. In order to make the process as efficient as possible, the beacons are placed at some distance from the actual hazard area. An example is a situation where a Tour de France stage is using a track, e.g. route, that is also used by daily traffic. The traffic is redirected from the track in order to let the entire group of cyclists, e.g. racers, pass.

The warning system also comprises programming means comprising a control unit configured for transmitting the programming signals.

The programming means is physically detached from the beacon and the receiver and communicates by means of a wireless programming signal with the beacon.

This is advantageous as the programming means allow to program, e.g. update, the beacon. When the beacons are placed along the predefined track, the programming means may move before the road users along the predefined track and program the beacons when necessary. This allows the beacon to be programmed depending on changed surroundings situations such that the warning system is easily adaptable to changing hazardous situations. In an embodiment of the warning system according to the invention, the programming signals comprise warning and/or information data being representative for a surroundings situation of the beacon.

In an embodiment of the warning system according to the invention, the warning signals comprise warning and/or information data being representative for a surroundings situation of the beacon.

In an embodiment of the warning system according to the invention, the receiving means are suitable for being carried by a road user, in particularly a cyclist.

This is advantageous as each road user carries its own receiving means, such that identification is possible.

In an embodiment of the warning system according to the invention, the receiving means comprise display means for displaying warning and/or information data.

This is advantageous as it provides an alternative to audio, such that also in an environment with a lot of noise, it is possible for the road user to notify warning and/or information data.

In an embodiment of the warning system according to the invention, the receiving means comprise audio means for emitting audio representative for warning and/or information data. This is advantageous as it provides an alternative to visual displays, such that also in an environment where there is little sight, it is possible for the road user to notify warning and/or information data.

In an embodiment of the warning system according to the invention, the receiving means comprise a control unit configured for emitting the audio representative for warning and/or information data in a predefined language.

This is advantageous a it allows for a more user friendly interface between the road user and the receiving means.

In an embodiment of the warning system according to the invention, the receiving means comprise a control unit configured for emitting and/or displaying a predefined selection of the warning and/or information data.

This is advantageous as it allows to tailor available warning and/or information data to the needs of the road user. For example, the road user is only interested in warning data and no information data. The road user may preselect that the receiving means only discloses warning data to the road user. In another example, the road user may preselect only desired types of warning data.

In an embodiment of the warning system according to the invention, the beacon and the receiving means are configured to transmit and receiving at a preset frequency.

This is advantageous as it allows different road users having each a receiving means to receive different warning signals, depending on a set frequency of the beacon and corresponding receiving means.

For example, this allows that warning and/or information data is only received by a particular team all having receiver means operating at a same preset frequency.

In an embodiment of the warning system according to the invention, the beacon and the programming means are configured to receive and transmit at a preset frequency.

This is advantageous as it allows different operators, supervisors and/or stewards etc. having each a programming means to transmit different program signals, depending on a set frequency of the beacon and corresponding programming means.

For example, a team leader may only transmit a program signal in a certain frequency.

In an embodiment of the warning system according to the invention, the beacon comprises alarm means configured for generating an alarm signal representative for a movement of the beacon.

This is advantageous for preventing a placed beacon to be moved by bystanders. It is a security feature that protect the beacon from being stolen. In an embodiment of the warning system according to the invention, the beacon comprises alarm means configured for generating an alarm signal depending on a received programming signal.

This is advantageous as it allows an operator of a programming means to locate the beacon when it is lost or when an exact location is unknown. The alarm signal may for example be a audio signal. In another example the alarm signal is a radio signal that is received by the programming means.

In an embodiment of the warning system according to the invention, the beacon is free from a physical power switch for switching the beacon on and/or off.

This is advantageous as it prevents bystanders, who are not allowed to program the beacon, from turning on and/or off the beacon.

Preferably, the beacon is free from a physical power switch for switching the beacon off.

In an embodiment, the beacon is free from a physical power switch for switching the beacon off and comprises a physical power switch for switching the beacon on.

This is advantageous as it provides a protection against spectators, e.g. people who are watching the race, to turn off the beacon. Turning off the beacon by spectators is unwanted. Having no physical power switch for switching the beacon off prevents spectators to undesirably switch the beacon off.

In an embodiment of the warning system according to the invention, the beacon comprises a power interface for connecting to a power source and wherein the control unit is configured for automatically switching the beacon on when the beacon disconnects from the power source.

This is advantageous as it allows for an easy activation of the beacon where there is no need for a power switch.

In an embodiment of the warning system according to the invention, the control unit of the beacon is configured to set the beacon in transmit mode depending on a received programming signal.

This is advantageous as it allows a remote activation of the beacon. The beacon is powered on, but only transmits one or more programming- and/or warning signals when it receives a certain programming signal. The certain programming signal is an activation signal, that when received by the beacon allows the beacon to transmit programming- and/or warning signals. This is advantageous as it is more energy efficient as the beacon only transmits, i.e. uses battery power, when necessary and activated by a person who sends the activation signal.

In an embodiment of the warning system according to the invention, the beacon comprises an attitude sensor for generating an attitude signal, wherein the control unit of the beacon is configured to receive the attitude signal and is configured for transmitting the warning signal depending on the attitude signal.

When the beacon has a predefined attitude, the beacon transmits a warning signal representative to the attitude. For example, the beacon is tied to an barrier, e.g. gate of a railway crossing. When a train passes, the barrier rotates and the attitude of the beacon changes. As a result the beacon transmits a warning signal representative for the attitude of the beacon and therefore representative to a passing train.

This is advantageous as it allows for a beacon to transmit warning signals representative to the attitude of the beacon.

In a further embodiment, the attitude sensor is a GPS sensor.

In an alternative further embodiment, the attitude sensor is a digital compass.

In a further embodiment, the beacon control unit is configured to transmit the warning signals in a direction depending on the attitude signal.

This is advantageous as it allows transmitting warning signals only in a desired direction, e.g. in a direction of the predefined track on which cyclists are arriving to the beacon. Using the attitude signal a heading or direction may be calculated by the beacon control unit. This may for example be done by means of dead reckoning, e.g. integrating the attitude signal with respect to time. In an alternative, the heading e.g. direction may be acquired by means of a digital compass.

In an embodiment of the warning system according to the invention, the receiving means comprises a velocity sensor for generating a velocity signal and the control unit of the receiving means is configured to provide warning signals to the user interface depending on the velocity signal.

This is advantageous as the beacon provides a warning signal when the beacon has a predefined velocity. For example, the beacon transmits a warning signal when the beacon is stolen and moves at a velocity higher than a predefined velocity.

In a further embodiment, the velocity sensor is a GPS sensor.

In an embodiment of the warning system according to the invention, the control unit of the programming means, the control unit of the beacon and the control unit of the receiving means are configured for transmitting and receiving communication signals for allowing a two-way communication between the receiving means and/or the programming means.

This is advantageous as it allows for communication between a road user and an operator of the programming means or any other third party.

When the program signals is received by the beacon, the beacon transmits the warning signal. The warning signal warns or informs the road user about possible hazardous situations at the right moment in time in order to prevent accidents, while the warning system can provide information with one or more communication lines fully or partially disabled.

In an embodiment of the warning system according to the invention, the warnings system comprises more than 10 beacons, in particular more than 50 beacons, more in particular more than 100 beacons.

This is particularly advantageous as it allows a coverage of a typical full length of a stage of an cycling game, such as the Tour the France. Typically, the length of such a stage is in the order magnitude of 50 km to 220 km. Based on the transmitting range of the beacons, i.e. on the power source of the beacon, the number of beacons may be evenly distributed along the respective predefined track.

In an embodiment of the warning system according to the invention, the system further comprises a storage block for storing one or more receiving means and/or beacons, wherein the storage block comprises an interface for digitally connecting the one ore more receiving means and/or beacons with a programming means.

This is advantageous as it allows the one ore more receiving means and/or beacons to be programmed simultaneously.

For example, the storage block is arranged to store and interface with 10 beacons that simultaneously can be transported and programmed. The programming means may for example be a laptop or a PC that is digitally connected with the beacons. For example, the beacons can be programmed with a desired language, such that warning signals received by the beacons are interfaced to the road user in the desired language.

In a further embodiment, the storage block further comprises an interface for electrically connecting the one or more receiving means and/or beacons with a power supply for electrically charging the one or more receiving means and/or beacons.

This is advantageous as it allows for simultaneously charging the receiving means and/or beacons. For example, the storage block is arranged to store and charge 10 beacons simultaneously. The storage block may be carried by a motorcycle or any motorized vehicle and placed along the predefined track. Another motorized vehicle may carry a second storage block and may collect beacons after a race and place them in the second storage block such that the beacons can be charged.

Preferably, the storage block comprises an interface for both a digital connection as well as an electrical connection, such that beacons can be programmed as well as charged by the storage block.

These and further embodiments of the method and the warning system according to the invention are captured in the dependent claims.

These and other aspects, characteristics and advantages of the present invention will be explained in more detail by means of the following description of embodiments of the method and apparatus according to the invention, in which identical reference numerals denote identical components, and in which:

figure 1 a discloses a top view of a warning system and method according to a first embodiment of the invention;

figure 1 b discloses a side view of warning system and method according to the first embodiment of the invention;

figure 2a discloses a top view of a warning system and method according to a second embodiment of the invention;

figure 2b discloses a side view of a warning system and method according to the second embodiment of the invention;

figure 3a discloses a top view of a warning system and method according to a third embodiment of the invention;

figure 3b discloses a side view of a warning system and method according to the third embodiment of the invention;

figure 4a discloses a top view of a warning system and method according to a fourth embodiment of the invention;

figure 4b discloses a side view of a warning system and method according to the fourth embodiment of the invention;

figure 5a discloses a top view of a warning system and method according to a fifth embodiment of the invention;

figure 5b discloses a side view of a warning system and method according to the fifth embodiment of the invention;

figure 6 discloses an overview of a warning system and method according to a sixth embodiment of the invention.

Figure 1a shows a warning system according to a first embodiment of the invention in a top view. Figure 1 b shows the same however here the view is a side view. The warning system is suitable for warning road users. Here, the road users are cyclists 7a, 7b who participate in a cycling game, e.g. a stage in the Tour the France.

The warning system comprises three beacons 2a, 2b, 2c each having a transmitting range. The beacons 2a, 2b, 2c comprise a control unit for receiving programming signals and is also configured for transmitting warning signals.

The warning system comprises three programming means 5a, 5b, 5c, 5d, 5e. Each programming means 5a, 5b, 5c is located in a car 10a, 10b, 10c driving on a road, in particular a road being part of a predefined track of the stage. The programming means 5a, 5b, 5c comprises a control unit configured for transmitting the programming signals. The warning system also comprises receiving means 3a, 3b. The receiving means are carried by the cyclists. Shown in figure is a group of nine cyclists 6a. Each carries its own receiving means 3a. The receiving means comprise a control unit configured for receiving the warning signals and providing the warning signals to a user interface.

Figure 1a and figure 1 b show the warning system used in a method according to the invention.

A safety car 10a, being the first, carries a first programming means 5a. Persons in the safety car 10a have placed the beacons 2a, 2b, 2c along the predefined track.

A transmitting range 7a of the programming means 5a is indicated by a circle around the safety car 10a. The first beacon 2a is now located in the transmitting range 7a of the

programming means 5a and is programmed by the person in the safety car 10a. For example, this person is a team leader, a steward or an official.

Before the first beacon 2a was placed along the predefined track, a second beacon 2b and a third beacon 2c were also been placed by the person of the safety car 10a. The second beacon 2b has a second beacon transmitting range 11b. The radius B of the second beacon transmitting range 11 b is approximately 500 m.

A second group of cyclists 6b, comprising two cyclists each having a receiving means 3b, fall inside the second beacon transmitting range 11 b and are able to receive warning signals send by the second beacon 2b.

Just before the second group of cyclists 6b a second car 10b is driving which carries a second programming means 5b. The second car 10b checks whether the predefined track is free from any hazards. Here, the second car 10b drives at approximately 2-12 minutes after the safety car 10a. If there is a hazard the second car 10b sends a program signal to the second beacon 2b, such that cyclists that arrive later and pass by the second beacon 2b are able to receive updated, e.g. reprogrammed, warning signals. Here, the distance A, expressed in minutes, between the first car 10a and the second car 10b is 6 minutes. This corresponds approximately with 4,5 km when a typical speed of the cyclist is 45 km/hour.

The same applies to a third beacon 2c. A third car 10c carries a third programming means 5c. The third programming means has a third programming means transmitting range 7c. It sends a localisation signal to the third beacon 2c, which receives the localisation signal and replies with a warning signal to the third programming means 5c, such that a person in the third car 10c is able to locate the third beacon 2c. Preferably, the localisation signal is send when the third car 10c, e.g. the third programming means 5c is at 50 m from the third beacon 2c. After thirty seconds the third beacon 2c is deactivated or it deactivates when the third beacon 2c is placed back in a charger box.

The person from the third car 10c collects, e.g. picks up, the third beacon 2c. Preferably, the beacons 2a, 2b, 2c are fixed at a location along the predetermined track during the cycling game.

Also shown in figures 1a and 1 b are a first motorcycle 10d carrying a first motorcycle programming means 5d. It also shows a second motorcycle 10e carrying a second motorcycle programming means 5e. The operators of these programming means 5d, 5e update, e.g.

reprogram, the beacons 2a, 2b, 2c when necessary and when their respective transmitting range is sufficient large such that the respective bacon 2a, 2b, 2c fall within the transmitting range.

Figure 2a and figure 2b show a second embodiment. However, features and elements indicated with same reference numbers are considered to be the same as in other described embodiments.

Figure 2a-2b again shows a safety car 10a carrying a first programming means 5a. The safety car transmits programming signals representative for a surroundings situation. The first programming means 5a have transmitting range 7a.

Further disclosed is a first motorcycle 10d carrying a first motorcycle programming means 5d and a second motorcycle 10e carrying a second motorcycle programming means 5e. The motorcycle receiving means 5d, 5e are also configured to receive and relay received program signals. Therefore, the motorcycle programming means 5d, 5e are transponders each having a motorcycle transponder transmitting range 7d, 7e.

Further disclosed is a first beacon 2a, a second beacon 2b and a third beacon 2c. Each beacon 2a, 2b, 2c has a transmitting range 1 1a, 1 1 b, 1 1c. The second beacon 2b is placed within the first beacon transmitting range 1 1a. The third beacon 2c is placed within the second beacon transmitting range 11 b. To allow for a communication in two directions, the second beacon 2b is placed within the third beacon transmitting range 1 1 c and the first beacon 2a is placed within the second beacon transmitting range 11 b. Each beacon transmitting range 1 1 a, 1 1 b, 1 1 c overlaps at least one beacon 2a, 2b, 2c. The beacons 2a, 2b, 2c transmit warning signals to all road users, e.g. cyclists, which fall within their respective transmitting range.

Figures 2a-2b show the method of relaying a program signal originated by the first programming means 5a. This program signal is entered by a person from the safety car 10a. As can be seen, all transmitting ranges 7a, 12d, 12e, 11a, 11 b, 11c are partly overlapping one or more beacons 2a, 2b, 2c such that respective programming signals are allowed to reach the beacons 2a, 2b, 2c such that they are able to transmit corresponding warning signals.

Figure 3a-3b show a third embodiment. However, features and elements indicated with same reference numbers are considered to be the same as in other described embodiments. Here, a safety car 10a, a first motorcycle 10d and a second motorcycle 10e explore, e.g. scout, e.g. investigate the road. They enter a hazardous surrounding situations in their respective programming means 5a, 5d, 5e. For example, the safety car 5a notices the roundabout 20. The first motorcycle 5d notices a diverging part 21 of a road. The second motorcycle 5e does not notice any hazard.

Here, the programming means 5a, 5d, 5e are also configured to receive

programming signals and relay them to a beacon 2a that falls within their respective transmitting range 7a, 7d, 7e.

Here, the surroundings situations of the first motorcycle 10d is relayed by means of the first programming means 5a of the safety car 10a to the second motorcycle

programming means 5e. The second motorcycle programming means 5d transmits warning signals to the first beacon 2a.

Figure 4a-4b show a fourth embodiment. However, features and elements indicated with same reference numbers are considered to be the same as in other described embodiments.

Figure 4a-4b shows a first group of cyclists 6a wherein each cyclist has a receiving means 3a. Also a second group of cyclists 6b is disclosed wherein each cyclist has a receiving means 3b. Also a third group of cyclists 6c is disclosed wherein each cyclist has a receiving means 3c.

Further disclosed is a first beacon 2a having a transmitting range 1 1 a. It further discloses a first motorcycle 10d carrying a first motorcycle programming means 5d. The first motorcycle programming means 5d has a transmitting range 7d.

Here, the motorcycle programming means 5d is configured to receive warning signals and relay them.

Here, the receiving means 3a, 3c are configured to transmit and relay warning signals. The receiving means 3a, 3c each have a transmitting range 12a, 12c.

In this embodiment it is disclosed that a warning signal W originated by the first beacon 2a is relayed by all programming- and receiving means 3a, 3b, 3c, 5d that are able to relay this signal. Here, all programming- and receiving means 3a, 3b, 3c, 5d are transponders able to both receive and transmit, thus relay, warning signals W. Thus, a method is disclosed that relays a warning signal W from the first beacon 2a to the first group of cyclists 6a, e.g. their corresponding receiving means 3a.

Note, that the respective transmitting ranges 7d, 1 1a, 12a, 12b, 12c sufficiently overlap the first beacon 2a and/or one or more programming- and/or receiving means 3a, 3b, 3c, 5d.

Figure 5a-5b show a fifth embodiment. However, features and elements indicated with same reference numbers are considered to be the same as in other described embodiments.

Figure 5a-5b shows a first group of cyclists 6a wherein each cyclist has a receiving means 3a. Also a second group of cyclists 6b is disclosed wherein each cyclist has a receiving means 3b. Further disclosed is a second car 10b carrying a first programming means 5a having a transmitting range 7b.

Here, the first programming means 5a is configured to generate warning signals. In other words, it is arranged as a beacon. The second car 10b drives just before the second group of cyclists 6b who are the first group in the race. The safety car 10a, not shown here, has not noticed any hazards. However, the second car 10b notices life stock on the road, here in the form of two horses 22. A person in the second 10b enters this surroundings situation in the second programming means 5b. The second programming means 5b transmits a warning signal which is received with the second programming means transmitting range 7b.

Here both the first as the second group of cyclists 6a, 6b are within this transmitting range 7b. Their respective receiving means 3a, 3b show the surroundings situation, e.g. two horses approaching on the predefined track to each of the individual cyclists. The invention is not limited to the described embodiments. Any combination of the described embodiments are possible and foreseen.

In an embodiment of the method, the beacons are placed such that the transmitting ranges of the beacons cover the whole predefined track.

This is advantageous as it increases safety as it allows road users to receive warning signals along the whole predefined track.

In an embodiment of the method, multiple beacons are programmed before they are placed along the predefined track. Preferably, they are programmed with warning- and/or information data assigned to location coordinates, e.g. GPS coordinates.

In an embodiment of the method, a beacon placed on a road junction only transmits warning signals in a predefined direction. For example, only a direction corresponding with cyclists who are approaching the beacon.

In an embodiment of the method, the programming signals are warning signals and vice versa. In other words, the receiving means and/or beacons and/or programming means have additional functionality. A programming means may for example generate warning signals and therefore has additional beacon functionality. In another example, a beacon generates programming signals and therefore has programming means functionality.

In an embodiment of the warning system, the receiving means and/or the programming means comprises a control unit configured to receive warning and programming signals and display locations of warning and/or information data on a display comprised in the receiving means and/or programming means.

When a first beacon is named, it is foreseen that this may be any of the beacons in a chain of beacons, thus not necessarily the first- or last one on the chain. This is advantageous as it provides a user, e.g. operator of the programming means and/or receiving means with an overview of multiple beacons, programming means, receiving means and/or corresponding surroundings situations.

For example, the receiving means and/or programming means comprise a tablet or a laptop.

In an embodiment of the warning system, a printing plate, e.g. PCB or FPGA, is similar for the beacon and the programming means. In a further embodiment the printing plate is also similar to the receiving means.

This is advantageous as it allows for cheaper manufacturing costs. Functionality of the resp. beacon, resp. programming means, resp. receiving means may differ from each other by configuring and/or setting firmware and/or software on the printing plate differently depending on a desired functionality.

As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriate detailed structure. Further, the terms and phrases used herein are not intended to be limiting, but rather, to provide an understandable description of the invention.

The terms "a" or "an", as used herein, are defined as one or more than one. The term "multiple", as used herein, is defined as two or more than two. The term "another", as used herein, is defined as at least a second or more. The terms "including" and/or "having", as used herein, are defined as comprising (i.e. open language, not excluding other elements or steps). Any reference signs in the claims should not be construed as limiting the scope of the claims of the invention.

The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Claims

Method for warning road users comprising the steps of:

placing at least one beacon, having a transmitting range, at a fixed predetermined location along a predetermined track;

programming the at least one beacon, by transmitting programming signals from at least one programming means, having a transmitting range, to the at least one beacon and receiving the programming signals by the at least one beacon, wherein the at least one beacon is located in the transmitting range of the programming means;

transmitting warning signals from the at least one beacon, wherein the warning signals are representative to the received programming signals; receiving the warning signals from the at least one beacon by at least one receiving means carried by a road user, wherein the receiving means is located in the transmitting range of the at least one beacon;

collecting the at least one beacon.

Method for warning road users, according to one of the preceding claims, wherein the programming signals comprise warning and/or information data

representative to a surroundings situation of the at least one beacon.

Method for warning road users, according to one of the preceding claims, wherein the warning signals comprise warning and/or information data representative to a surroundings situation of the at least one beacon.

Method for warning road users, according to claim 1 , wherein the step of programming the at least one beacon comprises moving the programming means towards the at least one beacon such that the at least one beacon falls within the transmitting range of the programming means.

Method for warning road users, according to one of the preceding claims, wherein the step of receiving the warning signals comprises moving the receiving means towards the at least one beacon such that the receiving means falls within the transmitting range of the at least one beacon.

6. Method for warning road users, according to one of the preceding claims, wherein the step of placing the at least one beacon comprises; placing a first beacon, having a first beacon transmitting range;

placing a second beacon, having a second beacon transmitting range, wherein the first beacon is placed within the second beacon transmitting range.

7. Method for warning road users, according to one of the preceding claims, further comprising the step of:

moving at least one programming means by a motorized vehicle. 8. Method for warning road users, according to one of the preceding claims, wherein the step of programming the at least one beacon comprises the steps of:

transmitting programming signals to a first beacon and receiving the programming signals by the first beacon;

transmitting programming signals, being updated in time, to the first beacon and receiving the updated programming signals by the first beacon.

Method for warning road users, according to one of the preceding claims, further comprising the step of:

transmitting programming signals by a first beacon;

receiving the programming signals from the first beacon by beacons placed within the transmitting range of the first beacon.

Method for warning road users, according to one of the preceding claims, wherei the warning signals and programming signals comprise position data

representative to a position of at least one of a surroundings situation of the at least one beacon, at least one beacon, the at least one programming means and/or the at least one receiving means.

Method for warning road users, according to one of the preceding claims, wherein the step of placing at least one beacon comprises placing n+1 beacons, each beacon having a transmitting range, and wherein beacon n+1 is placed such that beacon n+1 falls within the transmitting range of beacon n.

Method for warning road users, according to one of the preceding claims, wherein the step of placing at least one beacon comprises placing n+1 beacons, wherein warning and/or information data assigned to beacon n+1 is also comprised in warning and/or information data of beacon n+1-i and beacon n+1 +i. Method for warning road users, according to one of the preceding claims, further comprising the step of:

relaying a two-way communication signal by the at least one beacon;

communicating the two-way communication between at least one of the receiving means and/or at least one of the programming means.

transmitting a confirmation signal from the at least one beacon to the at least one programming means.

Warning system for road users, in particular suitable for performing the method according to one of the preceding claims, comprising:

a beacon comprising a control unit configured for receiving programming signals and configured for transmitting warning signals;

a programming means comprising a control unit configured for transmitting the programming signals;

a receiving means comprising a control unit configured for receiving the warning signals and providing the warning signals to a user interface.

Warning system for road users, according to claim 15, wherein the programming signals comprise warning and/or information data being representative for a surroundings situation of the beacon.

Warning system for road users, according to one of the preceding claims 15-16, wherein the warning signals comprise warning and/or information data being representative for a surroundings situation of the beacon.

Warning system for road users, according to one of the preceding claims 15-17, wherein the receiving means are suitable for being carried by a road user, in particularly a cyclist.

19. Warning system for road users, according to one of the preceding claims 15-18, wherein the receiving means comprise display means for displaying warning and/or information data.

20. Warning system for road users, according to one of the preceding claims 15-19, wherein the receiving means comprise audio means for emitting audio representative for warning and/or information data.

21. Warning system for road users, according to the previous claim, wherein the receiving means comprise a control unit configured for emitting the audio representative for warning and/or information data in a predefined language.

22. Warning system for road users, according to one of the preceding claims 15-21 , wherein the receiving means comprise a control unit configured for emitting and/or displaying a predefined selection of the warning and/or information data.

23. Warning system for road users, according to one of the preceding claims 15-22, wherein the beacon and the receiving means are configured to transmit and receiving at a preset frequency.

24. Warning system for road users, according to one of the preceding claims 15-23, wherein the beacon and the programming means are configured to receive and transmit at a preset frequency.

25. Warning system for road users, according to one of the preceding claims 15-24, wherein the beacon comprises alarm means configured for generating an alarm signal representative for a movement of the beacon.

26. Warning system for road users, according to one of the preceding claims 15-25, wherein the beacon comprises alarm means configured for generating an alarm signal depending on a received programming signal.

27. Warning system for road users, according to one of the preceding claims 15-26, wherein the beacon is free from a physical power switch for switching the beacon on and/or off.

28. Warning system for road users, according to the previous claims, wherein the beacon is free from a physical power switch for switching the beacon off and comprises a physical power switch for switching the beacon on.

29. Warning system for road users, according to one of the preceding claims 15-28, wherein the beacon comprises a power interface for connecting to a power source and wherein the control unit is configured for automatically switching the beacon on when the beacon disconnects from the power source.

30. Warning system for road users, according to one of the preceding claims 15-29, wherein the control unit of the beacon is configured to set the beacon in transmit mode depending on a received programming signal. 31. Warning system for road users, according to one of the preceding claims 15-30, wherein the beacon comprises an attitude sensor for generating an attitude signal, wherein the control unit of the beacon is configured to receive the attitude signal and is configured for transmitting the warning signal depending on the attitude signal.

32. Warning system for road users, according to the previous claim, wherein the beacon control unit is configured to transmit the warning signals in a direction depending on the attitude signal. 33. Warning system for road users, according to one of the preceding claims 15-32, wherein the receiving means comprises a velocity sensor for generating a velocity signal and the control unit of the receiving means is configured to provide warning signals to the user interface depending on the velocity signal. 34. Warning system for road users, according to one of the preceding claims 15-33, wherein the control unit of the programming means, the control unit of the beacon and the control unit of the receiving means are configured for transmitting and receiving communication signals for allowing a two-way communication between the receiving means and/or the programming means.

35. Warning system for road users, according to one of the preceding claims 15-34, comprising more than 10 beacons, in particular more than 50 beacons, more in particular more than 100 beacons. 36. Warning system for road users, according to one of the preceding claims 15-35, wherein the system further comprises: a storage block for storing one or more receiving means and/or beacons, wherein the storage block comprises an interface for digitally connecting the one ore more receiving means and/or beacons with a programming means.

Warning system for road users according to the previous claim, wherein the storage block further comprises an interface for electrically connecting the one more receiving means and/or beacons with a power supply for electrically charging the one or more receiving means and/or beacons.