ES2251688T3 - PROCEDURE AND DEVICE OF A SIGNAL BEAM. - Google Patents

Abstract

The invention enables remote triggering, by means of a triggering device (1), of an action (Ak) executable by a beacon (Bj). Therefor, said action (Ak) is associated with at least an orientation code (OAk), and to trigger the action (Ak), the device (1) is oriented, and the action (Ak) is caused to be executed by the signal beacon (Bj) when the orientation of the device is true.

Description

Procedure and device of a beacon signaling

The present invention relates to triggering, using a trigger or trigger device, of at least one action executable by a signaling beacon. The action executable by the beacon is, for example, but not exclusively, the dissemination of information.

In this text, the "device trigger or trigger "can be a portable device, carried by a natural person, called a user, or also a adjustable device embarked on a mobile object, such as, by example, a transport vehicle, or also a device installed in a fixed and adjustable installation.

In this text, the term "beacon signaling "means, in a general way, any or all element whose function is to execute an action under the command of a trigger or trigger device. It is among others, and not exclusively, of fixed elements, which provide information, especially visual, luminous and / or readable, set to disposition of a human being sufficiently close to the beacon, or also of mobile elements, specially installed on board a vehicle in order to provide, for example, information to This same human being.

As an example, among the main beacons concerned with the invention can be especially cited signaling lights, and in particular traffic lights for pedestrians placed at road crossings, being in this case one of the actions associated with the beacon spreading a message linked to signaling light status and orientation of the corresponding protected passage. You can also quote the indicator panels, which carry readable information, such as example, panels that indicate a location or an address (street name, name of a station or a stop, proposed addresses, departure indication, etc.). But the beacon can also be embarked on a vehicle, being, in this case, one of the actions associated with it, the dissemination of a message linked to the identification of the vehicle itself or its destiny, for example.

According to the invention, the action triggered or caused by the trigger or trigger device means, in this case, in a general way, at least, in the diffusion, by middle of the beacon, of the information that is associated with it. This dissemination can be translated into a local generation, through the beacon, of the information that is added, and can more particularly translate into a local broadcast by the beacon of a sound type information, which is audible by the user (for example, emission of a sound or of a succession or series of sounds characteristic of the information, or even restitution or local reproduction in vocal and intelligible form of information added to the beacon) Likewise, this diffusion can be translated in the emission, by means of said beacon that has been activated, of all or part of the information that is added, destined to trigger device being equipped in this case said device with an adapted receiver and with means, which allow to restore or reproduce (in a sound, vibratory, visual ...) the information that has been transmitted to you from a distance for the beacon.

More particularly, and by way of example, in the In the case of a first application, the invention is intended for command selective of one of the information associated with a beacon signaling, which carries visual information, such as, by example, traffic lights or lights, road signs, panels indicators, marker or information guard, ... for a user equipped with a trigger or trigger device, with the in order to spread through said signaling beacon (and / or by means of the trigger device itself) a refund or reproduction of said visual information (light status of signaling, information carried by the indicator panel, directional information, ...). In the case of this application, the invention preferably finds its interest for people with defective vision or no vision.

Similarly, the invention finds its application, for example and not exclusively, to remote triggering of information associated with a signaling beacon, of the type that Equip a subway station or a bus stop for a trigger device or trigger embarked on a vehicle transport. In the case of this application, this triggering it translates, for example, in the shipment to the transport vehicle of an information, which identifies the name of the station or the name or number of the station or stop, being equipped said vehicle, in this case, with means that allow a restitution or reproduction in sound and / or visual form of this information for all passengers of the transport vehicle. Likewise, in the case of this application, the triggering of the information can also be translated into a refund or local reproduction by the beacon, in vocal or visual form, of a information that identifies the transport vehicle that is Approaches the beacon.

Some devices have already been proposed for signaling and guidance system. These based on a transmission bright, especially infrared, they are mainly based on a system that involves a transmitter placed in a signaling beacon fixed, which emits a signal characteristic of the signaling beacon the receiver being carried by a user. For example, in the case of an application, the infrared emitter equips a traffic light or light of  road signaling, and emits an infrared signal characteristic of the state (red or green) of the traffic light The receiver is associated, by example, to a vibrator or similar, and allows to restore or reproduce for the user the infrared signal received in sound form. Thanks to the directivity of the light emission, the reception of the signal by the receiver allows a certain user guide that Take the receiver.

Other systems, more evolved, use the same support to send the user some more information complete, especially vowels (name of streets, addresses proposals, ...). In the case of these solutions, in addition to the fact that the photosensitive element of the led receiver must remain imperatively discovered, the signaling beacon (for example, the traffic light or an indicator panel equipped with a transmitter) must be practically "faced" by the user, who wishes receive the information and be guided, this guide being limited to light beam itself. Therefore, if a user does not show up correctly in front of the emitter, or if an obstacle gets in the way Between the sender and the receiver, you will not receive any information. In addition, this solution is likely to generate errors of guide (beam reflections on shop windows or showcases, for example) and the information transmitted is limited to the address that the user takes, not being able to direct this system with precision or correct its trajectory, if necessary; so the information is subject to interpretation: take right, by example, it says nothing about how much you have to turn to your right to be correctly oriented with respect to the information given. The difficulty is all the more important when several are proposed directions according to different angles. Also, when the user has actually turned around, not facing the issuer, You can no longer receive information, unless you anticipate several beacons for the same intersection (for example, one for each direction possible), which needs facilities and costs supplementary Also, in the case of this solution, the action of the signal beacon is reduced to the continuous emission of the information to display; Therefore, this solution is not very flexible in terms of actions executed by the beacon.

Other systems are based on a transmission radio (HF). The broadcast, omnidirectional this time, presents the advantage of not needing precise user guidance within of the emission zone. In return, the user does not have information about the address to take depending on your displacement or its real orientation; so, every user present within the broadcast zone, the same information is received by anyone Let it be your personal destiny. Thus, the information issued by the beacon they are of general order and cannot refer to some directions to take for lack of diectivity, but also and about all for not knowing the orientation even of the susceptible user if interested in the information; therefore this Solution is also very limited.

In the case of these various solutions proposals, depending on the case, the information provided by the beacon diffuse continuously, or diffuse repetitively, or even triggered by the user; on the other hand, it privileges this last way of acting if the information associated to the beacon must be disseminated publicly (signal sound, vocal information), this in order to reduce the Annoyance to the riverside. In this case where the information is transmits remotely privately, an infrared broadcast continuous does not pose an environmental problem, because of its spatial delimitation limited to a precise sector, even if he prefers a repeated discontinuous emission for the simple purpose of optimize the life of the issuer by reducing the consumption of energy can be used continuously to avoid a constant occupation of a frequency that can be used Occasionally by other applications. So, the radio broadcast Regular audio information is not desirable, not to mention the perennial even of the issuer.

That the information is disseminated publicly (speaker) or private (infrared or radio transmission), the fact that the user systematically receive the information when is within the issuer's emission zone, may present an annoying or irritating character for the habituated person who would prefer a simple confirmation reference on a route or route  known. This is a supplementary reason - in addition to the search or inquiry of the limitation of sound discomfort through a public dissemination of command information - which drives no trigger the issuance of your information by the beacon signaling, more than, when this is truly necessary, that is, in the presence of the user, it is also best to limit this broadcast to the dissemination of the single information desired by the interested in itself.

As regards manual triggering, the user is equipped with a remote control (transmitter), which allows him remotely activate the beacon, which is equipped with a adapted receiver. Therefore, this solution is recommended in the case of sound beacons, for example, in a light signaling or traffic light for pedestrians, designed to provide a vocal message about the state of light. Instead, this solution it presents some major inconveniences: on the one hand, the user is forced to activate a remote control for unlocking or triggering of the beacon, which greatly limits your interest in the case of blind or visually impaired people, and of On the other hand, each action on your part triggers all the beacons present within the issuer's emission field. In as for the solution that consists of making emit automatically and regularly the issuer of the user, on the one hand, does not allow more selective triggering of the beacons (the user systematically triggers all during its passage), and, on the other part, the excessive and useless consumption of energy, which results from it,  considerably limits the autonomy of the trigger device laptop.

In the European Patent application EP-A-338 997 has also been proposed a technical solution, in which the user is equipped with a trigger device, of the radio remote control type, which can be use to interrogate a beacon at a distance, such as, by for example, a signaling light or traffic light equipped with a transmitter (T) which transmitter is capable of broadcasting information stored in memory. In the case of this solution, trigger device and beacon transmitter (T) they are equipped with a directive type HF emission antenna respectively, and distance communication takes place in two stages, In a first stage, the user must guide correctly the trigger device in such a way that its antenna be correctly oriented with respect to the transmitter antenna (T) of the beacon. In the course of this first stage, the device trigger automatically modulates or tunes to the transmitter (T). Then, in a second stage, the user can, with help, for example, of a keyboard provided on the device trigger, interrogate the transmitter remotely to trigger some actions, and, in particular, for the transmitter (T) to emit the information stored to the trigger device in memory of.

The aforementioned solution described in the application for European Patent EP-A-338 997 It has a major drawback: the good orientation of the trigger device with respect to the beacon depends on the physical orientation of communication antennas, which converts to this solution in frozen or petrified and not very flexible use (a single possible device orientation trigger for all executable actions using the beacon.

The present invention aims to propose a new triggering procedure for at least one trigger device of at least one action (A_ {K}) executable by a signal beacon (B_ {i}), which procedure especially palliates the previous drawback of the solution described in the patent application European EP-A-338 997).

This goal is achieved through the procedure, presenting the technical characteristics of the claim one.

Comparatively to the described solution described in the European patent application EP-A-338 997, the procedure of the  invention is essentially differentiated by the fact that a action executable by the beacon is associated with an orientation code  parametrable, depending on the triggering of the action of the orientation of the trigger device and this code orientation.

Preferably, the trigger device is equipped with a medium, called a compass, designed to measure angularly the orientation of the trigger device with respect to to a reference direction (D) relative to the magnetic field terrestrial, according to a sense of angular rotation (S).

To trigger at least the action (A_ {K}), called action oriented, executable by the signaling beacon (B_ {i}), the orientation code representative of the angle formed by the element linked to said beacon and the code of representative orientation of the angle measured by the device trigger must conform to each other. To allow a comparison of the respective orientation codes, by consequently, from the angles of each of the two objects, establishes a wireless communication between this beacon and the trigger device, for example, positioning the device trigger (an object) in the vicinity of said signal beacon (B_ {i}), (another object) so that the issuance of one of the objects can be received by the receiver of the other object. When a communication is established between the beacon (B_ {i}) and the trigger device, the orientation code (OA_ {K}) relative the action (A_ {K}) associated with the beacon (B_ {i}) is compared with the orientation code (OM_ {t}) representative of the measure of angle formed by the trigger device, at the instant (t), with respect to a reference address (D2) relative to the field Earth magnetic Later we will see how it can be established this communication between the signaling beacon and the device trigger.

Depending on the application, the comparison and the Conformity verification of the two codes can be perform either by the trigger device or by the beacon.

In the case of a preferred embodiment of the invention, the signaling beacon (B_) is advantageously suitable to execute several actions [A_ {1} ... A_ {n}], and is associated with each action (A_ {K}) an orientation code (OA_ {K}) specific, in such a way that it is possible to trigger, so selective, an action (A_ {K}) among the set of actions [A_ {1} ... A_ {n}] executable by the beacon when orienting the trigger device.

More particularly, but not necessarily, for associate each action (A_ {K}) executable by a beacon with, at less, an orientation code (OA_ {K}), said orientation code in the beacon.

The triggered actions can be coated various ways and depend on the applications and the realizations

In the case of a first embodiment, the action triggered by the signal beacon is the emission of a signal sound or vocal, depending on the selection of this action on the compliance of the orientations between said trigger device and the element linked to said signal beacon.

In the case of a second embodiment, the action triggered by the trigger device is restitution or playback by this device trigger information associated with the signaling beacon, depending on the selection of this information on the conformity of the guidelines between said trigger device and the element linked to said beacon signaling

In the case of a third embodiment, the actions triggered by the beacon and each trigger device all or part of the actions triggered in the case of both first embodiments, depending on your selection of compliance of the orientations between said trigger device and the beacon signaling

Let's study the different variants

In the case of the first variant, the communication between signal beacon and trigger device is set by a radio broadcast of the trigger device (remote control) and a reception, adapted to this broadcast, by the beacon signaling At the moment (t), when the user activates their remote control, the code (OM_ {t}) that represents the angular measurement (with respect to Earth's magnetic north, for example) made by the compass of the trigger device at this time (t), it issued by the issuer of the user's trigger device. He receiver of the signaling beacon (integrated in the traffic light intended for pedestrians in this example) receive this code and compare with the code (OA_ {K}), which is stored, representative of the orientation of the protected passage (K) linked to this traffic light (also with respect to magnetic north terrestrial, for example). If the two codes (OM_ {t}) and (OA_ {K}) are satisfied, this means that the trigger device It is oriented in the same direction as the protected passage. In this In this case, the action triggered by the traffic light is the generation of an audible signal, for example, in the manner agreed according to its state. The codes conforming to each other are considered when they represent the same orientation, that is, the same direction angular with the predicted tolerance by program, with respect to a reference direction according to the direction of angular rotation established, or when the angular difference between the orientations corresponds to what is actually expected in the case of application.

With each traffic light in memory (including the located on the opposite side) different orientations, only the traffic light oriented in the same direction as measured by the compass of the user's trigger device is induced or driven to react, especially through a sound or vocal signal adapted to the circumstances. Thanks to this sound or vocal signal, the user can approach the traffic light that has triggered and orient correctly with a view to crossing parallel to the axis of the protected passage.

So, the triggering of the action associated to the beacon certainly depends on the results of the comparison between orientation codes (OA_ {K}) of this protected passage, and (OM_ {t}), especially at the time of user action on its remote control, being located this user within a perimeter relatively close to traffic light intended for pedestrians, close enough for this beacon is within reach of the emitter of the trigger device, the emission power of this emitter being sufficient to trigger the action at a distance.

In this way, the only or single action unchained is certainly the one associated with the only traffic light linked to user orientation, through the orientation of your trigger device; this action is not triggers more than if the user is correctly oriented with regarding the protected passage, avoiding comparison tolerance an overly sharp search for alignment with this step protected. In the absence of emission, the traffic light remains mute, also in case of issuance when the codes are not compliant each. This limits the noise nuisance to the strict minimum, not the sound signal being emitted more by the set of beacons of the crossing, but only for the one that concerns the user well oriented that eager to know the state of the traffic light and the orientation of the protected passage, activates its remote control.

We will warn that the sound or vocal signal can be replaced or completed by a message, which informs the user of the state of traffic light, which concerns you, and that invites you to present yourself on the bright side of the traffic light (on the left or on the right) to make him really face the step protected avoiding the risk of collision with obstacles potentials located outside the planned crossing area.

The signaling beacon and trigger device they can also be equipped with a transmitter and radio receiver complementary respectively, which would allow the beacon of publicize your messages privately to the user, but also transmit to the trigger device the code of orientation (OA_ {k}) of the action (A_ {k}) that linked it. In that case this code can be memorized for a few seconds by the trigger device and be regularly compared to codes (OM_ {tx}) relative to the different angular measures performed regularly (at each time tx) by the beat of the trigger device with respect to a field reference Earth magnetic This allows you to regularly check the good presentation of the user in front of the protected passage and of invite you, if necessary, to correct your career during the crossing. This way of acting constitutes more specifically the object of the third embodiment variant.

In order to automate the selection a bit of the action to be triggered, it has been thought to provide for an activation regulate the emitter of the trigger device, which would proceed to issuing codes (OM_ {tx}) of said device trigger related to its orientation at different times. This avoids the need for manual activation by the interested party, but present, in addition to the inconvenience of triggering all correctly aligned beacons found in its path, a important and useless consumption of energy incompatible with the autonomy sought for a lightweight and portable device.

To avoid these inconveniences, a second variant of the invention therefore consists in making issue their orientation codes for signal beacons in yes. This time, it is the signal beacons that are equipped with a radio transmitter, and trigger devices which are equipped With the right radio receiver. Each beacon (B_ {i}) emits, with repetitive preference, the targeting code (OA_ {k}) of the action (A_ {k}), which is associated with it, and, if In this case, the message (1_ {k}) '' that corresponds to the element (k) linked to this beacon (B_ {i}). When he trigger device reaches the emission perimeter of the beacon (the traffic light for pedestrians, for example), receives and memorize this code as well as, eventually, the message (1_ {k}) corresponding (for example, the state of the traffic light). The reception of this code can already be interpreted as a warning signal to the user who enters into an area capable of operating a action or to provide information, whatever the orientation of the trigger device.

Upon receipt of the code orientation (OA_ {k}), the trigger device memorizes it and proceed regularly to compare this code with the code of orientation (OM_ {tx}) measured at each moment (tx) by the compass of the trigger device. In case of conformity of the codes, the trigger device authorizes receipt and / or dissemination to the interested party of the message (1_ {k}) associated with the beacon and transmitted by the latter, message eventually memorized by the trigger device at the time of receipt, or also restores or reproduces a message previously registered in the trigger device corresponding to the eventual code issued by the beacon instead of or in addition to the message (1_ {k}). In that case, the user thus informed in a private capacity, for example earmuff, you can make decisions with full knowledge of your environment or environment and not activate the public sound emission or vowel more than the beacon that interests you according to the crossing in question. This trigger can also be manual, but also performed automatically when the user presents the same orientation for an agreed time so that your trigger device measures several times, during this time, practically the same angle with respect to the direction of reference.

Manual triggering after taking  knowledge of the environment or its automation through measures virtually identical angles within a given time, allow not to request the trigger device more than in the case in which it is effectively located within the emission zone of a beacon and that its orientation matches that of the linked element to this beacon; the autonomy of the trigger device ensures best.

This variant is more particularly suitable for cases in which the action to be triggered remains located in the trigger device, in the case of our example, in the restitution of a message associated with the beacon itself.

A third variant regroups the advantages of first two. Allows the triggering of an action associated with a beacon by a user, this also automatically or manual according to your criteria, taking into account the particularities of the user itself, while retaining the principles mentioned above about limiting consumption of energy and radio emissions.

The signaling beacon (B_ {i}) and the device trigger are equipped respectively with a transmitter and with a receiver designed to allow information exchange Between the two elements.

As in the case of the second variant, each beacon (B_ {i}) emits, preferably repetitively, the orientation code (OA_ {k}) of the action (A_ {k}), which It is associated. When the trigger device reaches the emission perimeter of the beacon (the traffic light intended for pedestrians, for example), receive and memorize this code. Here also, the fact of having received a code recognized as being an orientation code determines a memorization of this code by the trigger device and regular comparison by said trigger device with its orientation code (OM_ {tx}) measured at each moment (tx) by the measure of the trigger device. In case of conformity of the codes, the trigger device transmitter triggers the signal remotely sound or vocal of the beacon, thus manifesting its location space to help the user get closer. The system has Become interactive.

The triggering of this signal is Consecutive agreement of device orientations trigger and the element (k) corresponding to the action (A_ {k}) of the beacon, action with respect to the same direction. To the approaching the signal beacon, the user is at the same time correctly positioned and correctly oriented in front of the element (k) linked to the beacon. In our example, the user Be informed of the location and direction of the passage protected.

Here also all the information coming of the beacon can be transmitted to the user by radio, through of the receiver of your trigger device. Being memorized on orientation code (OA_ {k}) on the trigger device, it warns the user of whether this code and the orientation code (OM_ {tx}) are no longer compliant with each other, that is, if moves away from the appropriate direction, therefore if the planned path has just been modified. For example, in the case of the traffic light intended for pedestrians, the device trigger can invite the user, privately, to correct your path at the time of your crossing if you move away from the pass protected you have taken.

When leaving the radio coverage area of the beacon (loss of the beacon radio signal and absence of reception of your orientation code), or when entering another area (new beacon found), the trigger device memory previously loaded with the orientation code (OA_ {k}) reset to zero, and, if necessary, load with the new targeting code Apart from all radio code reception which means an area of action or information, the device trigger no longer proceeds to some comparisons of codes orientation.

Whatever the variant or application, and To avoid any misinterpretation of codes, you can it is useful to precede each issuance of targeting code of an agreed code to signal to the receiver that the code that will continue, it is certainly a code that should be compared with the local code For the sequence of explanations, this code of Activation of the angular comparison is called ACA code.

Other features and advantages of the invention will be more clearly evidenced with the reading of the subsequent description of several applications of the procedure of the invention, which description is made by way of example not limiting and in reference to the attached drawings, in which:

- Figure 1 represents schematically, seen from above, a junction equipped with signaling lights or traffic lights for pedestrians, each equipped with a circuit electronic that is specific to the invention, and that allows transform signaling light or traffic light into a beacon signaltics according to the invention;

- Figure 2 is a synoptic scheme that illustrates, on the one hand, an example of electronic architecture for the electronic circuit, which equips each signaling light or traffic light (signal beacon), and, on the other hand, an example of electronic architecture for the trigger device of the invention, which is intended to be carried by a pedestrian, and which is suitable, depending on its location, to communicate remotely with the electronic circuit of one or more signaling lights or traffic lights;

- Figure 3 is an example of the organization chart of electronic circuit operation of a traffic light or signaling;

- Figure 4 is an example of the organization chart of trigger device operation;

- Figures 5 and 6 are another example of flow chart of operation of electronic circuits respective of a signaling light or traffic light (beacon) and of the trigger device;

- Figure 7 represents, seen from above, a multi-way crossing (hall) that propose several destinations in different directions, this crossing being equipped with a signal beacon according to the invention;

- Figure 8 represents, seen from above, a circulation route, which involves or presents on each side two bus stations, each station being equipped with a beacon signaling according to the invention.

Application / signaling lights or traffic lights for pedestrians

In a first embodiment of the invention, which will now be described in detail with reference to Figures 1 to 6, the signal beacons (B_ {)} are constituted by signaling lights or traffic lights for regular pedestrians, who have been equipped with a circuit specific electronic, allowing the execution of the procedure of selective triggering of the invention. In the course of the This description, by simplification, shall be designated by the terms "signaling light or traffic light" B_ {i}, the beacon signaling (B_ {i}), that is, actually the signaling light or traffic light equipped with its specific electronic circuit of the invention.

In the case of the particular example of Figure 1, a traffic crossing with four lanes V_ {1} has been represented, V_ {2}, V_ {3}, V_ {{}}, each track being equipped, one and the other part with two traffic lights or signaling lights for pedestrians, are placed facing each other at the level of the steps to pedestrians (for example, traffic lights B_ {1} and B_ {2} for the track V1 and the protected step PP). Thus, in the example of realization of the Figure 1, are listed as traffic lights (B_ {1} to B_ {8}). By way of usual, when the pedestrian traffic light is green, pedestrians they can cross the corresponding path, and vice versa when the Pedestrian traffic light is red, pedestrians should wait.

The electronic circuit that equips each traffic light or signaling light (and whose architecture example is illustrated in the left part of figure 2) is designed to communicate to distance with one or several trigger devices (1). This electronic circuit is preferably integrated in a box existing, but may, for example, be housed within another waterproof box, fixed to the traffic light post or signaling light, and provided with an inspection record, which allows access to the electronic circuit for maintenance personnel.

A trigger device (1) (portable type) it is carried by a pedestrian, for example, hung around the neck under the shape of a medallion, or in the form of sheet metal or badge, or also partially or fully integrated into a pair of glasses. When a pedestrian equipped with a trigger device (1) is located within the CH_ {i} emission field of a traffic light or signaling light B_ {i}, automatically receives the orientation code (OA_ {k}), memorized and periodically issued by the circuit electronic traffic light or signaling light B_ {i}. This code It is representative of the angle (\ alpha_ {x}), which forms the axis of the corresponding protected step with respect to the address of reference (D) (which can be Earth's magnetic north, by example) according to an established angular rotation direction (S) (which it can be the conventional trigonometric sense, for example).

Upon receipt of this code by the device trigger (1), the latter memorizes it and warns the user of that has entered an information zone, by means of a signal or a previously registered message. In this case the compass of trigger device proceeds regularly to an angle measurement (13), which forms with the reference direction (D) according to the direction of angular rotation set (S). In every moment (t), this measure is translated into a code (OM_ {t}), which is compared to the code (OA_ {k}). In case of conformity of the codes of orientation (OA_ {k}) and (OM_ {t}), this means that the trigger device is oriented in the same way as the protected passage; in this case the emitter of the trigger device send this code (OM_ {t}) to traffic light B_ {i}, which recognizes compliance with its own code (OA_ {k}), which triggers the sound signal or the voice message agreed according to the status of the traffic light or signaling light B_ {i}, and, where appropriate, Any other planned action.

This sound signal (or this vocal message) allows to the pedestrian locate the traffic light B_ {i}, the only traffic light triggered therefore only traffic light representative of it orientation than that of the trigger device and within the field of emission in which it is located.

In a second time, after automatic triggering of the traffic light or signaling light, of In accordance with the method of the invention, the pedestrian is automatically informed of the state (green or red) of the traffic light as well as its location (street name, for example).

The other traffic lights also emit your code of orientation, but with different emission periods, what which allows the receiver of the device (1) located within a emission zone common to several traffic lights, for example, not receiving more than one code at a time to compare the codes received with which he forms with respect to the address reference (D). It will not issue your code (OM_ {t}) except if it is according to the code received, that is, that it is correctly oriented in front of a traffic light (or protected passage corresponding) to not trigger more than the action that is associated.

In this way, this first application of the invention advantageously allows, on one hand, each pedestrian equipped with a trigger device (1), can be located easily in an urban environment, without being forced to read the papers indicators, which indicate the names of the roads, and, on the other hand, be guided in its displacement with respect to a traffic light or light of signaling and be automatically informed of the status of traffic light relative to its crossing and in whose proximity it is. By this, this application adapts more particularly, but not exclusively, to pedestrians who have a visual impairment (people with defective vision or no vision), and allows to guide these visually impaired pedestrians and improve the safety of their movements in urban areas, especially at the moment of the crossing of a road.

Architecture of the emitter / receiver circuit of a beacon B_ {i} - figure 2

On the left side of figure 1 it has been represented an example of embodiment of an electronic circuit 2 of the invention, which equips each traffic light or signaling light B_ {i}, and whose electronic architecture is based on the use of a microcontroller 20, such as, for example, the MICROCHIP PIC 16C84 microcontroller, indicating that they are other forms of thought for the specialist, the treatment unit being specially made programmable constituted by microcontroller 20, by means of another microcontroller, a microprocessor or an electronic circuit ASIC type specific.

The microcontroller 20 of the electronic circuit 2 It essentially involves:

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a processor 201, accompanied by a quartz 202,

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some Input / output ports 203, which allow to communicate the processor 201 with outer peripherals,

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a first memory 204, of type ROM, in which a resident program, which allows the processor 201 to operate, and that is specific to the invention,

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and one second memory 205, of type ROM, in which they are safeguarded mainly several codes (OA_ {k}, ACA, AMM1, AMM2) and information ("MESSAGE"); the nature and usefulness of these codes and information will be explained later in the moment of the description of the operation of all the beacons (B_ {i}) and a trigger device (1).

In addition to microcontroller 20, the circuit electronic 2 includes:

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a radio transmitter (HF) 21, connected to an output port adapted from the microcontroller 20,

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 a radio receiver (HF) 22, unique to an angry port adapted from the microcontroller 20,

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a sound generator 23, which, depending on the case, can be a simple sound vibrator or a vocal message generator,

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if necessary, a magnetic compass 24, which measures the effective angle between the orientation of the beacon, and a  reference direction relative to the earth's magnetic field; no this compass is always necessary, especially in the case of fixed signaling beacon, in which it is carried out with the setting in single beacon service relative to the orientation of the element associated to the beacon, this measure being memorized, in such case, in the form of an OA_ {k} code.

Depending on the case, the power supply (no represented) of the set of the aforementioned active components of the electronic circuit 2 can be done from the existing power supply of the other components usual traffic light or signaling light, or be made of independently by means of an electrical source or spring autonomous, type batteries.

Being of known conception the radio transmitter (HF) 21 its structure and operation will not be detailed. From in a general way, it allows to emit omnidirectionally (Figure 1 / emission field CH_ {1}) and over a small range (in practice, in a few meters up to a few tens of meters), in the form of a radio signal, carrier wave type high frequency (HF) modulated, codes given in forms binaries that are sent to you by processor 201. By way of non-limiting examples, for the radio emission of the data binaries, which are transmitted to it by processor 201, the sender radio 21 is designed to use the protocols of standard communication based on frequency modulation or with drive width

It is also the responsibility of the specialist to choose from judicious and well-known way, radiation means (antennas) of the radio transmitter 21, as well as the emitted HF power, depending on the intended application, and in luck to obtain the scope of required emission. Referring to figure 1, and for greater clarity has materialized through a circle only the emission field CH_ {1} of the radio transmitter 21 of the traffic light B_ {1}. In the case of this application, each radio transmitter (not shown) in figure 1), of a traffic light B_ {i} has a sufficient range so that the radio emission field covers at least the entire width of the corresponding adjacent protected passage (PP) without covering, without However, an area that is too important, must be maintained located the information to guide the interested party. In practice, the radius of the necessary coverage will be dependent on the local facilities; for information you should often stay between 3 and 10 meters.

The radio receiver (HF) 22 allows, so known, the omnidirectional reception of a high carrier wave frequency (HF) modulated (HF wave emitted by a device trigger (1) and demodulation of this carrier wave. The data binaries from or resulting from this demodulation can be communicate to processor 201 via the input port, at which receptor (HF) binds 22. In practice, sensitivity of receiver (HF) 22 is sufficient to allow communication in several tens of meters.

If referring to figure 2, an input port of the microcontroller also receives a signal 27, which is, by example, of numerical type (all or nothing), and whose state characterizes the state (green or red) of the signaling light or traffic light. This signal 27 comes from the control box 26 (known per se) of the traffic light B_ {i}, which allows, in the usual way, to send in time the change of state of the traffic light or signaling light. Every change status of signal 27, which corresponds to a change of state of the signal light or traffic light for pedestrians, generates in the port corresponding input an interrupt for processor 201. The treatment of this interruption will be explained below in reference to figure 3.

Trigger device architecture (1) - figure 2

On the right side of figure 2 it has represented an embodiment of a trigger device (I) of the invention.

This device (1) includes a microcontroller 10, which essentially comprises:

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a processor 101, accompanied by a quartz 102,

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some Inputs / Outputs ports 103, which allow to communicate the 101 processor with outer peripherals,

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a first memory 104, of type ROM, in which a resident program, which allows the processor 101 to be operated and which is specific to the invention,

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and one second memory 105, of the ROM type.

The microprocessor 10 is constituted by a MICROCHIP PIC 16C84 microcontroller, for example.

Within the memory 105, several codes (ACA, P) detailed below are safeguarded or protected. The OM_ {t} codes representative of the orientation of the device at each time t are stored within this memory 105; Each value is replaced by the following. Also, within this memory 105, in each address dotted by the code "AMM1" and by the code "AMM2" of a traffic light or signaling light, two phrases "MESSAGE 1" and "MESSAGE 2" respectively are safeguarded.

In addition to microcontroller 10, the device (1) involves:

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a radio receiver (HF), which joins an input port of the microcontroller 20,

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a radio transmitter (HF) 12, which joins an output port of the microcontroller 20,

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a vocal message generator 13,

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a magnetic compass 14, which measures the effective angle between its orientation and a reference address relative to the field Earth's magnetic, in the case of this example,

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a autonomous power supply (not shown) of the battery type or battery, which supplies the necessary electrical power to each active component of the device.

The radio receiver (HF) 11 is adapted to the transmitter radius (HF) 21 of each signaling light or traffic light B_, and ensures demodulation and decoding of data transmitted by radio, which are reversed with demodulation and with the coding performed by each radio transmitter (HF) 21.

The radio transmitter (HF) 12 adapts to the receiver radius (HF) 22 of each traffic light or signaling light B_, and performs a carrier modulation (HF) that is capable of remodulating each radio receiver (HF) 22.

Audio section 13 is known and includes essentially the audio amplifier and speaker miniature needed for restitution or vocal reproduction of audible messages by the pedestrian equipped with the device trigger (1). This miniature speaker may consist of a headset that the pedestrian holds inside his ear, or places on the immediate proximity of your ear, so that the messages delivered vocals, from audio section 13, be audible by the pedestrian.

Operation of the beacons (B_ {5} and the device trigger - figures 3 and 4

The algorithm of Figure 3 illustrates a variant of performing an operating cycle of processor 201 of a traffic light or signaling light B_ {i}. Every time the light of signaling or traffic light B_ {i} changes state (passing traffic light green or red), signal 27 received at the entrance by the Microcontroller 20 generates an interruption for processor 201. At each interruption, this processor 201 starts a cycle again of operation when executing the organizational chart stages of the Figure 3. This operating cycle is executed in a loop (loop iterative 307), for as long as traffic light B_ {i} does not Change state As soon as the traffic light B_ {i} changes from status, processor 201 interrupts its operation (end of cycle) and restart a new cycle.

In the course of each operating cycle, the microcontroller 20 emits (figure 3 / block 302) in a repetitive manner, via the radio transmitter (HF) 21, a beacon orientation code (OA_ {k}), which is contained within memory 205 of the microcontroller, and which identifies the orientation, with respect to a reference direction (D) relative to the earth's magnetic field according to an established direction of rotation (S), of the signaling light or traffic light (B_ {1 }) or more generally the orientation of the corresponding protected passage. As already indicated, in the case of another variant, a device can be made in which it is the emitter of the trigger device (1) that emits a trigger code, regularly or on demand, subordinating the triggering of the beacon to the Conformity of the orientation code (OM_ {t}) with respect to this same reference address (D) with that stored in the beacon (B_ {i}) to which the user arrives. However, the fact of having the beacon emitted regularly (B_ {i}) before the trigger device (1) allows the user of the latter to be advised of their arrival in an information area by simply receiving the orientation code (OA_ {k}) of a nearby beacon (B_ {i}) without needing a maneuver on your part, although avoiding useless energy consumption of the device
trigger (1).

In the course of the description, for the application of figure 1, the scope of the issuance of each beacon (B_ {i}) integrated in the traffic light is insufficient to cover up to the beacon emission coverage area corresponding to the parallel track. Thus, it will be considered that each traffic light (B_ {i}) is identified by an orientation code beacon (OA_ {i}) representative of the orientation of the element that joins him, especially, in the present case, to the protected passage corresponding, with respect to a reference address (D) relative to the earth's magnetic field according to a direction of rotation established (S). In other words, it will be admitted only to simplification title, which the eight orientation codes beacon OB_ {1} to OB_ {8} are enough to distinguish traffic lights each. This is not limiting the invention. In the case of others  realizations for traffic lights or in the case of other applications of the invention, several signal beacons can be parameterized with the same beacon orientation code, especially because they are representative of the same element (even protected passage, by example).

Now we will detail a working example of traffic lights B_ {1} to B_ {8} and of the trigger device (1) of figure 1, referring to the flow charts of figures 3 and Four.

With reference to figure 1, a pedestrian equipped with the trigger device (1) it is located within the field of emission CH1 of the traffic light or signaling light B_ {1} (called visible beacon). This pedestrian is supposed to be, like his ported trigger device, is oriented in it address relative to the traffic light or signal light B_ {1}, in such a way that the orientation, with respect to a reference direction (D) relative to the earth's magnetic field according to an established direction of rotation (S), of its measure 14 is orient in the same way with respect to the orientation of the step protected, whose orientation code is stored inside the traffic light or signaling light B1.

Initially, the microcontroller 10 of the device (1) is waiting to receive an ACA code, which is an activation code of the angular comparison section of the device (1) (figure 4 / block 401 and test 402).

When the visible beacon B_ {1}, in the course of its operating cycle, issues this ACA code (figure 3 / block 301), this code is received by the radio receiver (HF) 11 of the device (1), and is transmitted to the processor 101 of the microcontroller 10. This ACA code allows to inform the microcontroller 10 that the next code you will receive, is a orientation code beacon.

When processor 101 receives and recognizes this ACA code, automatically activated to measure 14, by means of the control signal 15 as well as the angular comparison program (Figure 4 / step 404). Measure 14 therefore proceeds to regular measures for the verification of conformities, measures that you transfer to processor 101 via the command signal 16.

In the case of another variant, it could be constantly operate this angular comparison, but in This example energy consumption would be uselessly increased.

After issuing an ACA code, the microcontroller 20 of traffic light B_ {{}}, emits, via the radio transmitter (HF) 21, its orientation code (OA_ {k}), which is saved in memory 205 (figure 3 / block 302). By For example, for each traffic light B_ {i} this code represents the effective angle (\ alpha_ {i}) between the protected passage corresponding to the traffic light B_ {i} and the reference address (D) relative to the earth's magnetic field according to a sense of established rotation (S). In the case of another variant this code of  orientation comes from a regular measurement using a measure 24 of the effective angle between the orientation of the beacon and this reference address (D), especially in the case where it should a modification of the orientation is taken into account, or when several information linked to different addresses are propose by the beacon. Such a regular measure can also serve to maintenance services to warn them of a modification of the orientation of the beacon by comparison with the code (OA_ {i}) memorized at the time of installation and the code representative of the effective angle (\ alpha_ {i}). This same measure 24 is necessary for applications where the signaling beacon is movable, especially when shipped on A vehicle.

This code (OA_ {k}) is received by the trigger device microcontroller 10 processor 101 (1), which processor compares (figure 4 / block 405) this code with the code (OM_ {t}) representative of the angle that forms the measure 14 of the device (1) at the instant (t), with respect to a reference address (D) relative to the magnetic field terrestrial according to an established direction of rotation (S). In that case the orientation codes of the beacon (OA_ {k}) and the trigger device (OM_ {t}) are the same (with tolerance provided by the comparison program), which authorizes, of a part, the emission by the device (1) (figure 4 / block 406) of the activation code that can be triggered by beacon (B_ {i}) certain particular operations as a sound triggering or a radio broadcast, and, on the other hand, authorizes the operation of audio section 13 of the device trigger (1) by means of command signal 17.

We will warn that without recognition of the angular compliance between codes (OA_ {k}) and (OM_ {t}) is not activate neither the selective triggering of the beacon (B_ {i}) nor the operation of the audio section of the device trigger.

After issuing a code of orientation, the microcontroller 20 of the signaling light or traffic light B_ {1}, emits, via the radio transmitter (HF) 21, the message (variable "MESSAGE"), which is stored in memory 205 (Figure 3 / block 302): For example, for each traffic light B_ {i} this message consists of the information following: number and name of the road at which level it is located the traffic light or signaling light B_ {i}. This message is received. by the processor 101 of the microcontroller 10 of the device (1), which processor forwards or returns (signal 18 / figure 2) the Information received constituting this message to the section audio 13, allowing a restitution or vocal reproduction of this information for the pedestrian. Thus the pedestrian is informed automatically of the number and name of the road towards which directs, which allows it to be advantageously located.

Instead of the message, the beacon can emit, at less, a code between the codes that are memorized previously (AMM1 and AMM2, for example). These codes are representative of the routing of the audio messages previously memorized in the carrier's tongue. At the time of his reception, the trigger device (1) restores the message or corresponding messages.

When restitution or reproduction is completed message vowel, the microcontroller 10 of the device (1) commands the stop (signal 17 / figure 2) of the audio section (figure 4 / block 405). In the case of another variant, a device (1), in which audio section 13 is constantly working. However, such continuous operation of this audio section, on the one hand, causes a nuisance (noise from background) for the pedestrian, and, on the other hand, increases consumption energy of the device (1). That way, temporary activation of audio section 13, long enough for the restitution or vocal reproduction of the message, allows advantageously, on the one hand, avoid a nuisance to the user and, on the other hand, considerably reduce energy consumption of the device (1).

In parallel, the other traffic lights or lights of signaling B_ {2} to B_ {8}, in the course of its cycle of operation, they also emit their beacon code so repetitive However, when the device (1) is placed inside the reception field CH_ {1} of traffic light B_ {1} and giving the measure 14 of this device (1) the same code relative to the angle with with respect to the Earth's magnetic north that the code relative to the measure 24 of traffic light B_ {1}, or the code that is stored in he representing the orientation of the corresponding protected passage (with the tolerance provided by the comparison program), only the beacon orientation code (OA_ {1}) is accepted by the microcontroller 10 of the trigger device (1) of Figure 1; the other beacon orientation codes (OA_ {2} to OA_ {8}) emitted in parallel by the other traffic lights or lights of signaling are not taken into consideration by the device trigger (1); each one of them cannot be taken in counts more than if the trigger device (1), when changing its orientation, ends up having the same orientation as the element linked to the corresponding beacon, in this case here the step protected. However, according to the angular recognition program of the trigger device, this selective triggering of the beacon (B_ {i}) may also concern a beacon that represents another angle (OA_ {i} + x 0}), for example, the beacon opposite if the need is felt (OA_ {i} + 180º).

When you receive the beacon guidance code OB_ {1}, the microcontroller 10 of the device (1) safeguards this beacon code in living memory 104 (figure 4 / block 403), later, he will use it, if the case arises, to form the code triggering the beacon and issuing it via its emitter (HF) 22. When issued omnidirectionally this code OB_ {1}, it is convenient to limit the scope of the issuer of the trigger device or provide identification codes specific to each beacon of an area covered by an emission of important scope, received in this case by the 20 microcontrollers of all traffic lights or lights signaling B1 to B8.

Orientation Code (OA_ {k})

In general, the selective triggering of a beacon is subordinated to the conformity of the orientation code (OM_ {t}) (figure 4 / block 405) of the trigger device (1), code representative of its effective orientation with respect to a reference address (D) relative to the earth's magnetic field at time or moment t , with the beacon code (OA_ {k}) representative of the orientation of the beacon B_ {1} itself with respect to this same reference direction (D), be of the orientation of the linked element in this beacon (that is, the traffic light B_ {1) and the protected passage PP of the track V1 respectively in the case of the operating example of Figure 1).

More particularly, in the case of a first variant embodiment, this conformity is total, by representing the orientation code OA_ {k} of the beacon B_ {i} and the code OM_ {t} of the trigger device (1) the same angles with respect to this reference direction (D) relative to the earth's magnetic field at time t , with the desired tolerance.

In the case of a second variant of realization, compliance is checked if the beacon code (OA_ {k}) determined by the orientation of a device trigger (1) is representative of a different orientation to the of the beacon (or of the element corresponding to the beacon), being planned this different orientation by program to be considered as another triggering condition, for example, when it is convenient to trigger two beacons oriented at the same time differently (two opposite traffic lights, for example) or when the compass of the trigger device (1) is installed according to another angle than the trigger itself when the conditions to authorize the triggering, not being Limiting these examples.

Treatment of the orientation code (OM_ {t}) for traffic lights B_ {i}

In the course of an operating cycle, each traffic light or signaling light B1 to B8 is waiting for a predetermined duration of receiving a code from orientation (OM_ {t}) of a trigger device (figure 3 / test 303) (first and third variants mentioned). When a trigger device sends its orientation code (OM_ {t}), This code is received by traffic lights present within the limited emission zone, especially the traffic lights of the tracks adjacent, and each of these traffic lights makes a comparison of this code (OM_ {t}) with its own targeting code beacon (figure 3 / block 304), and verify the conformity of the Orientation code (OM_ {t}) received with your own code beacon (OA_ {i}) (figure 3 / test 305). When a traffic light B_ {i} receive a beacon code (OM_ {t}) sent by the device (1) which is in accordance with its beacon orientation code (OA_ {i}); saying traffic light B triggers one or more actions (figure 3 / stage 306).

When the targeting code (OM_ {t}), which is issued by the device (1), is identical to the code of guidance beacon received (OA_ {i}) (first and third variants cited above), the verification of the conformity of the codes by each traffic light B_ {figure 3 / block 305) is a simple conformity detection of codes. Thus, in the case of example of figure 1, the traffic light or signaling light B1, when you receive a code (OM_ {t}) that conforms to the code (OA_ {1}), detects that it is the same orientation and automatically triggers planned actions. Instead, the other traffic lights being parameterized with codes of different code orientation (OA_ {1}), when they receive the code (OM_ {t}) issued by the device (1), does not recognize a conformity of this code with yours and, therefore, do not trigger no action Thus, the comparison of orientation codes between the traffic light B_ {1} and the device (1) allows advantageously cause triggering by the device (1), so selective and automatic, only the traffic light B_ {1}, which is normally visible to the pedestrian.

Treatment of the orientation code (OA_ {k}) by trigger devices

In the course of an operating cycle, each trigger device is waiting to receive a guidance code (OA_ {k}) issued by a beacon (second and third variant mentioned). When a beacon sends its code orientation (OA_ {k}), this code is received by the device or the trigger devices present within the zone of beacon emission, and each of these trigger devices regularly measure the angle it forms with the reference direction (D) relative to the earth's magnetic field (Figure 4 / block 404), then proceed for each measurement made to the comparison of this code (OA_ {k}) received with its own guidance code (OM_ {t}) verifying the conformity of the Orientation code (OA_ {k}) received with your own code (OM_ {t}) Figure 4 / test 405). When one of these measures corresponds to the one represented by the code (OA_ {k}) sent by a beacon, that is, when the orientation code (OM_ {t}) is according to the orientation code (OA_ {k}) received, said trigger device triggers one or more actions figure 4 / step 406).

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Triggered actions

The action or actions that are automatically triggered by a traffic light or signaling light B_ {i} (figure
3 / block 306), or by a trigger device (Figure 4 / block 406), can be of various natures, and will, of course, depend on the application. Among these actions automatically triggered by the beacon, which has recognized the conformity of the orientations, that is, the traffic light B1, in the case of the example of Figure 1, it is possible to cite the automatic transmission of the signaling information of the beacon (state of the green or red light inside the application frame with two traffic lights or signaling lights) for the pedestrian, which carries the trigger device (1).

In a first embodiment variant, the Transmission of this information can be generated locally at the level of the traffic light. For example, the action triggered by the traffic light it consists of piloting your local voice message generator 23, to in order to emit under vocal form and audibly for each pedestrian, which is within walking distance, an audible signal or a vocal message indicating the status of the traffic light (for example, a distinctive sound signal for the green phase or a verbal signal "red light - wait" for the red phase). Likewise, in the case of an embodiment variant, which can be accumulated with the first previous variant, the transmission of information on traffic light status can be done by transmitting this information by the traffic light or signaling light, by way of your radio transmitter (HF) 21, to the device (1), remaining guaranteed restitution or reproduction in sound form of this information by the trigger device (1). More particularly in the case of a preferred embodiment, the action triggered by the traffic light consists of sending an address code memory (AMM1 or AMM2 depending on the status of the traffic light state) by the path of your radio transmitter (HF) 21. When the microcontroller 10 of the trigger device (1) receives this addressing code memory, retrieves the message saved in memory with the address corresponding to the received code (MESSAGE 1: "light green pedestrians "/ MESSAGE 2:" red light, wait "). Then the microcontroller 10 sends the vocal generator 13, in order to make issue the message (MESSAGE 1 or MESSAGE 2), which is addressed or sent by the code (AMM1 or AMM2) received. The same can happen with other messages previously memorized in the user's language, in special to inform you of the side of the beacon towards which head safely.

The trigger device intended for a deaf person can translate the transmission of information about the state of the traffic light vibratingly. So, the actions triggered by a trigger device can be broadcast of a private information in the language of the interested party, but also the commissioning of a vibrator, or the emission of a code, without these examples being limiting.

Particular code P

In the case of a more refined variant, each trigger device (1) is designed to transmit in addition to the orientation code (OM_ {t}) of the instant t , at least, a supplementary code, called a particular code P. This code Particular P allows characterizing specificities suitable for the trigger device (1) and more particularly suitable for the pedestrian carrying this device. For example, this particular code P may contain an indication about the language of the pedestrian. In this case, when the traffic light that has received this code triggers an action, it can take into account the language of the pedestrian to trigger this appropriate action, such as, for example, an emission by the voice generator of the traffic light of a message in the language of the pedestrian, or also the transmission of an AMM_ {x} code corresponding to a memory address of the trigger device (1) within which the message corresponding to the state of the traffic light is stored in the pedestrian's language, without these examples being limiting .

The particular code P can characterize also pedestrian handicap. In particular, in the case of a variant embodiment, it can be provided at the device level trigger (1), in addition to a vocal generator 13, a vibrator mechanical (not shown in the figures) as already indicated. When the particular code P forwarded indicates to the traffic light that the pedestrian carrying the trigger device (1), hears with difficulty, in this case the action that is triggered by the traffic light, can consist of restitution or reproduction in vocal form of a message about the state of the traffic light, for example, in local, at traffic light level but with more restitution power high.

In the case of the particular application with two traffic lights or signaling lights just described in reference to figures 1 to 4, the local sound signal and the message which indicates to the user on which side the traffic light should go, allows advantageously a pedestrian guide with respect to the protected passage towards which it is directed. Especially, when the pedestrian receives clearly the traffic light location message, knows that it is oriented in the same direction as the protected passage correspondent. If you approach the traffic light indicated, position, by definition, correctly for the crossing or He passed.

However, the use of a transmission omnidirectional radio type between the beacon and the device trigger is not limiting of the invention. In the case of others executions, may be provided at the level of each beacon, instead of a radio transmitter, a direct transmitter, infrared, for example; in this case, each trigger device (1) is equipped, instead of a radio receiver, of a manager type receiver, adapted to the issuer of the beacons. Likewise, in the case of another variant, the signal beacons can be equipped with a supplementary emitter, for example, of type HF, behaving in this case the device trigger (1) an HF supplementary receiver, adapted to the HF transmitter of the beacons. This supplementary HF transmitter and receiver can be used, for example, for the transmission of the message of location (message sent by the traffic light after sending an activation code), on another frequency, by example, in this case, after receiving this code from activation, the microcontroller 10 is preferably designed to  in order to activate temporarily, not only the amplifier goes down frequency of audio section 13, as described more above, but also the HF receiver demodulator supplementary.

Likewise, in the case of the variant of embodiment, which has been described above, the issuance of a message about the location of the traffic light with a view to its restitution under vocal or similar form for the pedestrian, is optional.

In Figures 5 and 6, another variant embodiment, in which there is no issuance of codes of part orientation of the beacon part for the device trigger (1); Here is a manual action from the interested party, or a repetitive emission of the trigger device, which triggers the angular comparison and, where appropriate, the action associated to the beacon. Stage 501 of the flow chart of Figure 5 it is identical to step 404 of the flow chart of Figure 4; the stages 502 and 50; are identical respectively to steps 301 and 302 of the flow chart of Figure 3; stage 601, test 602 and stages 603 and 605 as well as test 604 of the flow chart of the figure 6 are identical respectively to step 401, test 402 and stages 403 and 406 as well as test 405 of the flow chart of the figure 4.In the case of this embodiment variant, they are returned to find also the activation features of the section of angular comparison of the beacon by issuing a code ACA by the trigger (1), followed by the issuance of a code orientation by said device, code that is compared by the beacon to trigger, if the case arises, the action planned.

Application / information beacon

In figure 7 another application has been represented of the invention, in which the beacon B_ {i} is a marker or Guardacantos, which has information on some addresses corresponding to proposed or desired destinations. This cairn, or guard, called BIO, and more particularly positioned in public places, in the "nodes" of possible addresses, like the crossings of corridors or passageways, the intersections of pathways, such as are found within the hallways of public or private buildings (railway stations, metro stations, shopping centers etc.).

More particularly, it has been represented in a way  schematic a milestone or information guard and of orientation (BIO) arranged at the intersection of 6 different routes V1 to V6, which lead to 6 different destinations DS1 to DS2. The BIO is equipped with a B_ {i} signaling beacon of the invention, which It is designed to communicate with trigger devices present within the BIO CH emission zone, such as trigger device carried by the user U.

In the case of this application, the beacon B_ {i} It is equipped with an electronic circuit, whose architecture is identical to the one described above in reference to figure 2, if it does not happen more than the microcontroller of the beacon of the figure 7 does not necessarily receive an interrupt signal 27 resulting from a change in fixation status (except local peculiarities), contrary to the beacon described more above in reference to figure 2.

In the case of this application of Figure 7, the user U is equipped with a trigger device (1), whose electronic architecture is, for example, identical to the one already described for the preceding application.

The main difference between this application and the previously described application of traffic lights or lights signaling for pedestrians is constituted by the two programs residents, who operate the respective microcontrollers of the beacon and trigger devices. Organization charts of operation of the respective programs, which are executed by BIO and trigger device microcontrollers (1) carried by the interested party, are, for example, identical to retrieved in Figures 3 and 4, except that the code (OA_ {k}) successively take the values corresponding to the different guidance codes proposed by the BIO.

Referring to Figure 7, the user U, who is represented (bearer of a trigger device (1), is located within the emission field CH of the beacon B i of the marker or BIO guard). The trigger device (1 ) of the user U receives from the beacon B_ {i} of the BIO marker the different orientation codes (OA_ {1}) to (OA_ {6}), respectively representative of the 6 addresses DS1 to DS6 of the tracks V1 to V6 proposed by said BIO marker with respect to a reference direction (D) of the earth's magnetic field, in which case these codes are memorized by the trigger device (1) which, at each moment t , proceeds to the comparison of each of between them with their own orientation code (OM_ {t}) representative of the angle that forms with the reference direction (D) measured by measure 24.

In case of conformity of the codes (OM_ {t}) and (OA_ {x}), therefore of user orientation with with respect to the DSx address (x which represents one of the six here possibilities of the example), the trigger device (1) performs a certain number of shares, such as the issuance of its targeting code (OM_ {t}).

In the case of our example, the user goes to track 3; the compass of the trigger device (1) carried by the user U naturally measures, at every moment t , the angle?, which forms with respect to the reference direction (D). Each measure is converted into a code (OM_ {t}). This angle [beta] {t} is not more than the angle [alpha] {3} of track 3 ([alpha] 3 and [alpha] 6 are very different); therefore, the orientation code (OM_ {t}) is in accordance with the orientation code (OA_ {3}), which has been memorized by the trigger device (1) at the time of its arrival in the CH emission zone . Thus, this conformity determines the triggering of actions, such as the emission by the trigger device (1) of its code (OM_ {t}), which is received by the B_ {i} beacon of the BIO. In turn, this beacon compares this orientation code (OM_ {t}) received with its orientation codes that it has in memory. In this case, it recognizes the conformity of codes (OM_ {t}) and (OA_ {3}) and selectively performs a certain number of actions; for example, it transmits a precise message, in this case the one corresponding to the address of track 3 in our example, without transmitting all the available messages.

Therefore, the user receives no more than the message corresponding to your orientation. If you change it, you receive the new message corresponding to your new orientation since this Last corresponds to an address proposed by the beacon.

You can imagine that the user formulates, of a any way (choice between a developing menu, vocal formulation, etc.), a request about a precise destination (proposed or not by the BIO marker), indicating the beacon B_ {i} to user, if the case arises, which is in good address, or by inviting him to correct his career in the case Otherwise, in this case, the trigger device is designed to invite your user to orient yourself differently when this is necessary, always being the trigger of each one of these actions depending on the conformity of the codes of orientation with each other.

Application / bus stations

Another application of the invention, in which each signaling beacon B_ {i} is a beacon identifying a place, and more particularly is positioned at the height of a bus station S_ {i} and allows to identify said station.

More particularly, in Figure 8 it has been schematically represented a circulation path V of double direction, and two bus stations S_ {1} and S_ {2} opposite each other on both sides of the road V. Station S_ {1} is equipped with a signaling beacon of the invention B_ {1}, which is designed to communicate with buses running on the upper road, such as bus B of figure 8, which is headed in the direction of the station buses S_ {1}, the orientation code being provided (OA_ {1}) to be in accordance with the direction of movement of the buses corresponding to this route. Within the same spirit, the beacon B_ {2} is designed, as regards it, to communicate with buses that come in reverse from the side Bottom of the road.

In general, this embodiment could be generalized to any station for transport vehicle in  common, and, for example, may be transposed to subway stations, to  Train Stations, ...

In the case of this application, each beacon B_ {i} is equipped with an electronic circuit, whose architecture is identical to the one described above in reference to figure 2, if it does not happen more than the microcontroller of the beacons of figure 8 do not receive an input signal from interruption 25, contrary to the beacon described above in reference to figure 2.

In the application of Figure 8, each bus that circulates in an urban environment, such as, for example, bus B, is equipped with a trigger device (1) on board, whose electronic architecture is, for example, identical to the one already described for the preceding applications.

With reference to figure 8, bus B, which it is represented, it is located within the emission field CH_ {1} of the beacon B_ {1} of the station S_ {1}, and is directed at Station address S_ {1}. So this bus B receives the beacon orientation code (OA_ {1}), representative of a angle \ alpha_ {1}, which is sent by the beacon B_ {1} and Compare this code with your orientation code (OM_ {t}). This Orientation code (OM_ {t}) transmitted by the bus is truly representative of the angle \ beta_ {t}, which forms the bus at time (t) with respect to an address of reference (D) relative to the earth's magnetic field according to a direction of rotation set (S), in accordance with what is already It has been described above for the first application. With this code, the on-board trigger device transmits the code particular P, which advantageously contains information of bus identification (for example, bus number, line on service, destination, origin, or even information according to which the bus is not in service and, therefore, does not take passengers to board).

When the beacon B_ {1} has received the code of orientation (OM_ {t}) and the particular code P, which are sent by the bus, detects that the code (OM_ {t}), which transmits to you, it is according to your beacon guidance code (OA_ {1}), and thus automatically triggers a certain number of actions below. Instead, the beacon B_ {2} that You can also receive these codes (OM_ {t}) and P, detects that the code (OM_ {t}) received does not conform to its code (OA_ {2})  representative of its angle \ alpha_ {2}, and therefore not It triggers no particular action.

The actions triggered by the B1 beacon are, For example, the following.

Beacon B_ {1} triggers, for example, a first action, which consists in transmitting, by way of an issuer radio or infrared, for example, to bus B in approximation a message, which identifies the station S_ {1} (for example, the name of the station). The trigger device (1) embarked on the bus B, is in this case equipped and programmed for after receiving a message of this nature, spread said message in vocal and audible form for all passengers of the bus. Also, another action that can be triggered by the beacon B_ {1}, is to spread locally, at the height of the station S_ {1}, a message, which is audible by passengers in wait inside the station, and that identifies bus B in approach (bus number, line in service, ...). This message is automatically generated by the microcontroller of the beacon B_ {1}, based on the information contained in the P code that has been returned by bus B in approach.

Likewise, this message can also be communicated by beacon B_ {1}, to all pedestrians equipped with a trigger device (1), with a view to its diffusion in the form Pedestrian audible by device microcontroller trigger (1) carried by the pedestrian.

Advantageously, in the case of the realization that has just been described, being automatically informed at the same time the stations S_ {1} of the identification of each bus in approach (thanks to the particular code P), it becomes possible to join each of the stations S_ {1} to a central location of the buses. In addition, each station S_ {1} is designed to communicate to this central location the identification of each Approach bus (particular code P). In this way, it fits the possibility, centrally and remotely, of knowing the location of each bus in circulation.

In short, it is perfectly possible to provide a signaling beacon embarked on the vehicle instead of trigger device, signaling beacon that will emit repetitive orientation code of the moment, code relative to Vehicle orientation As in the case of the application of traffic lights or pedestrian lights, this regular emission is intended for the trigger devices present within the zone of beacon emission, movable this time. In this case these trigger devices, fixedly installed or carried by mobile users, compare these received orientation codes with yours and trigger various actions associated with the beacon (message issuance ...) according to the conformity of the respective codes This allows, in particular, a person waiting for the arrival of a bus being prevented from arrival (without being warned of the arrival of the bus at the station opposite) being, for example, the actions triggered the issuance by the beacon of a message concerning the destination of the bus in approach.

The invention is not limited to only applications which have just been described in reference to figures 1 to 8, but You can find numerous other applications. In particular, the invention can be applied to any beacon that allows communicating at least at least one signaling information that is added.

Likewise, in the case of variants of Embodiments described with reference to the attached figures, the conformity check of device orientation trigger with each orientation code (OA_ {k}) is performed by the trigger device. This is not limiting the invention. In the case of another embodiment variant, this function could be secured or guaranteed by the beacon. In this case, the device trigger is preferably designed to communicate to the beacon a characteristic information of its orientation in the space.

In the examples that will be described, the addresses are measured with respect to an address of reference relative to the earth's magnetic field, and the means of Measurements are, in particular, magnetic compasses or compasses. But other reference directions and adapted means to measure the angles formed with respect to these reference directions  They can be used. These referral addresses can occur, for example, by some ground emitting beacons or space to allow comparison measures in order to determine and compare directions.

Claims (34)

1. Remote triggering procedure, by means of a trigger device (1), of an action (A_ {k}) executable by a signaling beacon (B_ {)}, characterized by the fact that it is associated with said action (A_ {k}), at least one orientation code (OA_ {k}), and by the fact that the trigger device (1_) is oriented to trigger the action (1), and is executed the action (A_ {k}) by the signaling beacon (B_ {i}) when the orientation of the trigger device (1) is in accordance with the orientation code (OA_ {k}) associated with the action (A_ {k}). 2. Method according to the first claim characterized by the fact that the signaling beacon (B_ {i}) is capable of executing several actions [A_ {1} ... A_ {n}], by the fact that it is associated with each action (A_ {k}) a specific orientation code (OA_ {k}), in such a way that it is possible to selectively trigger an action (A_ {k}) between the set of actions [A_ {1 } ... A_ {n}], executable by the beacon when orienting the trigger device (1). 3. Method according to claim 1 or 2, characterized in that in order to associate with each action (A_ {k}) an orientation code (OA_ {k}) said orientation code is stored in the beacon. Method according to one of the first to third claims, characterized in that each orientation code (OA_ {k}) is representative of an angle (? X) formed with respect to a reference direction (D1 ) according to a direction of angular reference rotation (S1), and by the fact that each trigger device measures the angle (? {t}) that it forms at the moment (t) with respect to a reference direction (D2) according to a direction of angular reference rotation (S2), a measure identified by an orientation code (OM_ {t}), and for the fact that to trigger, at less, the action (A_ {k}), a comparison of its respective targeting codes, and the action is triggered (A_ {k}) when the orientation code (OM_ {t}) of the trigger device conforms to orientation code (OA_ {k}). 5. Method according to claim 4, characterized in that the reference directions (D1) and (D2) are the same, and / or the fact that the angular reference rotation directions (S1) and (S2 ) they are the same. Method according to claim 4, characterized in that the angles represented by the orientation codes (OA_ {k}) and (OM_ {t}) are in accordance with each other according to a predetermined tolerance for the application. 7. Method according to one of claims 1 to 6, characterized in that the orientation code (OA_ {k}) is determined from the measurement made by the signaling beacon (B_ {) of the angle that forms with respect to a reference direction (D1) according to a direction of angular reference rotation (S1). Method according to claim 4, characterized in that the orientation code (OM_ {t}) is a predetermined code associated with the trigger device (1). 9. Method according to claim 4, characterized in that the orientation code (OM_ {t}) is determined from the measurement made by the trigger device (1) of the angle it forms with respect to a reference direction (D2) according to a direction of angular reference rotation (S2). Method according to one of claims 1 to 9, characterized in that the signaling beacon (B_ {) emits its orientation code (OA_ {k}), preferably in a repetitive manner. Method according to one of claims 1 to 10, characterized in that the emission of the beacon (B i) and / or the device (1) is omnidirectional. 12. Method according to one of claims 1 to 11, characterized in that the trigger device (1) emits its orientation code (OM_ {t}), possibly repetitively. 13. Method according to one of claims 1 to 12, characterized in that the emission of the beacon (B1) and / or of the device (1) is an emission by modulation of a high frequency carrier. 14. Method according to one of the first to thirteenth claims, characterized in that the action (A k) triggered is the local distribution, preferably in sound form, of information associated with the beacon. 15. The method according to one of the first to fourteenth claims, characterized in that the action (A k) triggered is a command of the device (1), so that said device diffuses, preferably in sound form, the information associated with the beacon or previously registered information. 16. Method according to one of the first to fifteenth claims, characterized in that each issuance of an orientation code is preceded by the issuance of a predetermined code (ACA) to inform the object to which this code is issued ( ACA), that the next code that is issued, is an orientation code.

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17. Method according to one of the first to sixteenth claims, characterized in that the beacon is a signaling light or traffic light. 18. A method according to claim 17, characterized in that an action (A_k) executable by the beacon is the diffusion of the information of the state of the traffic light. 19. Method according to one of the first to sixteenth claims, characterized in that the signaling beacon is an orientation beacon, being an action (Ak) executable by said beacon the dissemination of information relating to an address. 20. Method according to one of the first to nineteenth claims, characterized in that the trigger device is shipped in a transport vehicle. 21. Signal beacon for the execution of the method proposed in any one of claims first to 20, characterized in that it is designed to execute at least one action (A_ {) remote triggered, depending on, at least one default targeting code (OA_ {k}). 22. Beacon according to claim 21, characterized in that the orientation code (OA_ {k}) is stored in memory within the beacon. 23. Beacon according to claim 21 or 22, characterized in that it is designed to measure the angle it forms with respect to a reference direction and to determine an orientation code (OA_ {k}) representative of this measure. 24. Signal beacon according to one of the twenty-first to twenty-third claims, characterized in that it comprises an emitter (21), and is designed to emit automatically, and preferably repetitively, at least one orientation code (OA_ {k}) associated with an action (A_ {k}) executable by the beacon. 25. Signal beacon according to one of the twenty-first to twenty-fourth claims, characterized in that it comprises a receiver (22), and is designed to automatically trigger one or more predefined actions when it receives an orientation code (OM_ {t} ), which is in accordance with its orientation code (OA_ {k}). 26. Signaling beacon according to the twenty-fifth claim, characterized in that it comprises means, which allow verifying the conformity of the orientation code (OM_ {t}) received with the orientation code (OA_ {k}) associated with the action (A_ {k}) and trigger the action (A_ {k}), and by the fact that it is designed for, after verification of the conformity of the orientation code (OM_ {t}) with the orientation code (OA_ {k}), send said means of execution of the action (A_ {k}), in order to execute the action (A_ {k}). 27. Signal beacon according to one of the twenty-first to twenty-sixth claims, characterized in that it constitutes a traffic light or signaling light, being an action associated with the beacon, in particular, the diffusion of information on the state of light of the traffic light. 28. Signal beacon according to one of claims 21 to 26, characterized in that it constitutes an information and orientation beacon, the action associated with the beacon, in particular, the dissemination of information relating to an address. 29. Trigger device (1), which allows a remote beacon to be triggered in accordance with the method proposed in any one of claims 1 to 20, characterized in that it comprises an emitter (12) and a means (14) of measure of the angle it forms with respect to a reference direction. 30. Device according to claim 29, characterized in that it is designed to emit, possibly repetitively, an orientation code (OM_t) representative of the measurement of this angle. 31. Device according to claim 29, characterized in that it comprises a receiver (11) and a means (14) for measuring the angle it forms with respect to a reference direction, and by the fact that it is designed to trigger automatically one or more predefined actions when it receives an orientation code (OA_ {k}), which is in accordance with its orientation code (OM_ {t}) representative of the measure of this angle. 32. Cairn or guardian of information and of orientation (BIO) equipped with a signaling beacon (B_ {i}) according to one of claims 21 to 28. 33. Transport vehicle (B) equipped with a trigger device (1) according to one of claims 29 a 31, or with a signal beacon (B_ {)} according to one of the claims 21 to 28. 34. Station (S_ {i}) equipped with a trigger device (1) according to one of claims 29 a 31, or with a signal beacon (B_ {)} according to one of the claims 21 to 28.