JP5500657B2 - Horn receiver, horn system, driving method and program for horn receiver - Google Patents

Description

  The present invention relates to a horn receiver, a horn system, a horn receiver driving method, and a program for receiving horn sound and alarm radio waves generated from a vehicle.

  Electric cars and electric bicycles do not make engine noise compared to conventional cars and motorcycles. Therefore, a method for notifying that an electric vehicle or an electric bicycle is approaching is required.

  A driver of a vehicle such as an electric car or an electric bicycle may notify a pedestrian in front that the vehicle is approaching by sounding a horn. However, in the case of an elderly person with a long ear or a hearing-impaired person, the sound of a horn that makes noise may not reach a healthy person. Therefore, it is desirable to realize a mechanism for notifying not only a healthy person but also an elderly person who is far away from the ear or a hearing-impaired person when the driver rings a horn.

  The basic idea of such a mechanism is that when the driver presses the horn switch, the conventional horn sounds, and at the same time, the FM horn or communication radio wave is used to notify that the horn switch has been pressed. If a pedestrian has a receiver that can receive the signal and receives the notification, the receiver can operate a vibrator or the like so that even a person with hearing impairment can recognize the horn. Various invention proposals have already been made based on this basic concept.

  Broadly speaking, it was invented on the assumption of the situation of a car and a pedestrian, and the situation to prevent a contact accident between a machine like a crane and a worker there at a noisy construction site, etc. And can be divided into those invented.

  Patent Document 1 and Patent Document 2 are invented assuming the situation of a car and a pedestrian. On the other hand, Patent Document 3 and Patent Document 4 are invented assuming a construction site where noise is large.

  Patent Document 1 aims to convey the presence or absence of a horn sound generated from a vehicle to a hearing impaired person. When the driver presses a normal horn switch on the steering wheel, the normal horn is turned on, and at the same time, FM broadcast radio waves for short distance are transmitted.

  On the other hand, the hearing impaired person has a receiver of the FM broadcast radio wave. When the receiver receives a specific radio wave determined in advance, the connected vibrator is vibrated. Thereby, a hearing-impaired person can also recognize the warning by the action which pushes a driver | operator's horn switch like a healthy person by experiencing vibration. However, the size and urgency of the horn are fixed. In a normal horn, the volume can be changed by pressing the horn switch. Therefore, the driver makes a loud sound when he wants to call attention, and makes a small sound when he wants to give a little notice to the pedestrian. However, this invention does not have a mechanism for the driver to selectively change the degree of vibration movement.

  Patent Document 2 aims to convey the presence or absence of a horn sound generated from a vehicle to a hearing impaired person. In this invention as well, as in Patent Document 1, when a horn switch is pressed on the vehicle body side, warning radio waves are broadcast simultaneously from the radio wave transmission device installed on the hood of the vehicle body. On the other hand, the pedestrian has a corresponding receiver. When the radio wave is received, although not specified, a pedestrian is notified of the presence of an approaching vehicle by vibration or the like.

  Patent Document 3 discloses an alarm device for a worker who works in the vicinity by attaching a transmitter to a crane hook at a construction site or the like. When the transmitter is turned on, a warning electromagnetic wave is always transmitted from the transmitter. On the other hand, the receiver is held by the worker's body (eg, helmet), so that the worker can recognize the reception of the electromagnetic wave of the transmitter by vibration or the like (although not specified) even when working in a noisy environment. It is to make. Further, since such a warning signal is unnecessary for an operator who is far away from the crane hook, the reach distance can be changed. As a result, the warning signal is transmitted only to a worker near the crane or a worker approaching the crane. As described above, the feature of the present invention is that a warning signal is always transmitted and the reachable distance of the warning signal can be changed.

  Patent Document 4 discloses an alarm device for a worker who works in the vicinity by attaching a transmitter to a machine tool at a work site or the like as in Patent Document 3. The feature of this invention is that when an abnormality occurs in a machine tool, the abnormal state is transmitted by radio waves and transmitted to nearby workers. In Patent Document 3, since a crane or the like was an object, it was always transmitted in order to inform that it was near the crane. However, in the case of this invention, it is transmitted only when the machine tool is in an abnormal state. Is different.

These four inventions can be summarized as follows.
-There are a number of proposals for mechanisms to alert people by sending radio waves from cars and cranes to humans (pedestrians and workers).
-As the transmission means, both FM radio waves and communication radio waves exist.
・ In the case of a car, when the horn switch is pressed, a warning is sent, but in the case of a construction site, radio waves can always be sent from a crane or machine tool to notify nearby workers. I am doing so.
-The receiving side has a mechanism that can transmit warnings to people who have difficulty in recognizing the sound of the horn (eg deaf people) using a vibrator.
-In patent document 3, the range (distance) which conveys attention can be designated. This eliminates the annoyance of being notified to people far enough away.
In Patent Document 4, radio waves are not always transmitted from a machine tool, but are transmitted only when the machine tool is in an abnormal state.

JP 2007-182195 A JP 2002-092781 A Japanese Utility Model Publication No. 07-013092 JP 2006-221463 A

  As described above, in the above-mentioned patent document, a plurality of inventions have already been proposed. However, none of these inventions includes “from which direction is the notification”. For example, when a pedestrian is struck by a horn, there is no way of knowing whether it is from the rear, from the right side, from the left side, or from the front. It was only notified that the subject, such as a vehicle, was nearby.

  An object of the present invention is to realize a mechanism for transmitting an alarm by means of detecting an alarm radio wave while simultaneously transmitting an alarm by a sound of a normal horn when a driver rings a horn.

A horn receiver according to the present invention includes a receiving antenna that receives an identifiable alarm radio wave output simultaneously with a horn sound, and
While detecting the horn sound, horn sound detection identifying means for identifying the direction of the horn sound,
Informing means for informing the direction of the horn sound identified by the horn sound detection and identification means,
When receiving the identifiable alarm radio wave by the receiving antenna, the horn sound detection and identification means is instructed to identify the direction of the horn sound, and the notification means is informed of the direction obtained by the identification result. A horn reception control unit,
It is characterized by having.

The horn system according to the present invention is a horn unit that generates a horn sound that is large if the specified reaching distance is long, and small if the reaching distance is small,
A radio horn unit for transmitting an alarm radio wave so that a propagation distance of the alarm radio wave is long if the arrival distance is long, and a propagation distance of the alarm radio wave is close if the arrival distance is small, and a horn including the reach distance In response to the operation instruction, both the horn unit and the radio horn unit are operated by specifying the reach distance, and when the horn operation instruction is stopped, both the horn unit and the radio horn unit A horn generator having a horn switch to stop operation;
The horn receiver according to the present invention is provided.

The driving method of the horn receiver according to the present invention receives an identifiable alarm radio wave output simultaneously with the horn sound,
Upon receiving the identifiable alarm radio wave, the horn sound is detected and the direction of the horn sound is identified,
The identified direction is notified by an informing means for informing the direction of the horn sound.

A program according to the present invention is stored in a computer.
When a receiving antenna receives an identifiable alarm radio wave that is output simultaneously with the horn sound, the horn sound detection and identification means detects the horn sound and instructs to identify the direction of the horn sound;
A function of controlling the notification means so as to notify the direction of the horn sound identified by the horn sound detection identification means by the notification means;
Is executed.

  The first effect of the present invention is that the driver makes a sound to a target person such as a person who is difficult to hear the horn of a car or a motorcycle by sound, such as a hearing impaired person or an elderly person, or a worker who is noisy. It is possible to provide a mechanism for notifying by means of vibration other than the above, and it is possible not only to turn vibration on and off but also to tell which direction the sound source is.

  The second effect of the present invention is that the driver can variably designate a range in which the horn is desired to propagate in both the horn sound and the electromagnetic horn according to the distance.

It is a block diagram which shows the structure of the horn system of 1st Embodiment concerning this invention. It is a block diagram which shows the structure of the horn generator of the horn system of 2nd Embodiment concerning this invention. It is a flowchart which shows operation | movement of a horn reception control part. It is explanatory drawing which shows the principle of the horn receiver of one Embodiment concerning this invention. It is explanatory drawing which shows the principle of the horn system of one Embodiment concerning this invention.

  Hereinafter, typical embodiments according to the present invention will be described with reference to the drawings.

  First, the principle of a horn receiver and a horn system according to an embodiment of the present invention will be described with reference to FIGS. FIG. 5 is an explanatory diagram showing the principle of the horn system of the present embodiment, and FIG. 4 is an explanatory diagram showing the principle of the horn receiver of the present embodiment.

As shown in FIG. 5, when the horn switch of the horn transmission device is pressed, not only the horn sounds (the horn sound is output) but also an alarm radio wave is transmitted at a short distance. On the other hand, the receiver has a receiver (horn receiving device) for the alarm radio wave, and when the alarm radio wave is received, the connected vibrator is vibrated. This configuration and operation is based on Patent Document 1. However, in this embodiment, compared with Patent Document 1, the receiver has an additional function. In addition to the radio wave receiver, the receiver
・ Microphone array to estimate the direction of the sound source (multiple microphones)
• Provide multiple vibrators that can vibrate independently in the direction unit. In this microphone array (which serves as a horn sound detection / identification means), the position of the sound source is estimated using the horn that is struck as an input. And only the vibrator corresponding to the direction is vibrated. The notification means for informing the direction is not limited to the vibrator, and a plurality of bone conduction speakers may be provided. In a plurality of vibrators and a plurality of bone conduction speakers constituting the notification means, each vibrator and each bone conduction speaker serve as a notification element.

The sound source direction estimation technique is not limited to the microphone array, and an existing technique related to sound source direction estimation can be used. For sound source direction estimation, research on sound source direction estimation (Tokyo Denki Lab)
http://www.asp.c.dendai.ac.jp/act_s_DOA01.html
It is described in. A sound source direction detecting device is described in Japanese Patent Application Laid-Open No. 11-83982.

  An image of a receiver incorporating this mechanism is shown in FIG. FIG. 4 shows a state where a pair of a microphone and a vibrator is wearing a coronal shape in which a pair of microphones and vibrators are fixed one by one in four right diagonal lines. In this state, suppose that a car approaches the back of this person and a horn sounds. Then, the position of the sound source is first identified by the microphone array. If it is determined that the sound source is at the rear, only the rear vibrator corresponding to the microphone close to the sound source is vibrated. Thereby, this person can recognize that the vibrator attached to the rear part of the head vibrates that the horn sounded from the rear part. This may be 6 directions or 8 directions. The number of microphone / vibrator pairs is not particularly limited, and is set as necessary. For example, a pair of a microphone and a vibrator can be set in two directions and three directions. However, at intersections and the like, bicycles and the like may appear from the front and rear and from the left and right, so it is desirable that there are four or more directions.

  Details of the principle of the configuration of this receiver will be further described with reference to FIG.

  In the horn system of the present embodiment, when a driver of a vehicle such as a bicycle including an electric bicycle, a motorcycle (motorcycle), an automobile including an electric vehicle or the like presses a horn switch, the horn as an actual sound, By using both, the approach event and its direction are communicated to the recipient.

  When the driver of the vehicle presses the horn switch, a horn sound sounds and at the same time, the fact that the switch has been pressed is transmitted by FM radio waves to a range that reaches around the vehicle.

  On the other hand, a pedestrian's receiver first receives the FM radio wave. When it is received, it instructs the microphone array to identify the direction (position) of the sound source of the sound produced at that time. When the microphone array identifies the direction (position) of the sound source, it issues a command to vibrate the vibrator in that direction. For example, when it is determined that the microphone A is close to the direction of the sound source, a vibration command is issued to the vibrator A corresponding to the microphone A.

  Here, if the horn sound can always be correctly detected by the microphone array, the direction identification can be realized only by using the horn sound. However, in the world, there are various sounds around the receiver, not just the horn sound, and it is the sound processing of current computers that distinguishes only the horn sound from the various sounds. The technology is not yet accurate enough. In fact, when the frequency component included in the horn sound generated from the horn unit is realized by a mechanism that detects by the PLL circuit, it is affected by the movement of a vehicle such as an automobile in which the horn unit is arranged and the noise of the surrounding environment, The frequency of the horn sound is easily changed, and there is a possibility that the horn sound is erroneously detected or not detected.

  Further, it is required to adjust the setting value of the frequency divider, the voltage value of the VCO, and the like in the PLL circuit.

  On the other hand, it is possible to accurately detect when the horn has been heard by notifying the horn switch that the horn switch has been pressed at the same time as the horn sound. Therefore, it is possible to estimate the sound source position of the horn sound with high accuracy by estimating the sound source position of the sound using the microphone array.

  In Patent Document 1, it is noted that the vibrator could not indicate the direction because there was only one recipient.

  This embodiment is composed of two embodiments in terms of content. The first embodiment represents a basic configuration in the present invention. The second embodiment is an applied form in which a function is added to the first embodiment.

  The second embodiment operates by distinguishing whether the horn is sounded far (eg, a pedestrian 50 meters away from the car) or only close (eg: a pedestrian 10 meters away from the car). A mechanism is added. In the case of a conventional horn, a loud sound is produced when pressed hard, and a small sound is produced when pressed lightly. Therefore, whether or not the horn is transmitted to a distant pedestrian can be controlled by the strength of the sound. However, in this embodiment, since the vibration is transmitted instead of the sound, the strength of the sound cannot be used. Therefore, by changing the strength of the communication radio wave on the transmission side, it is possible to control whether a signal is transmitted to a far receiver or only a nearby receiver is transmitted. The receiver does not take any special measures. The receiving side processes if the radio wave arrives at itself, and does nothing if the radio wave does not reach itself. In Patent Document 3 of the existing invention, the intensity of the radio wave that can designate a range (distance) for transmitting attention is made variable. However, in the present embodiment, “source direction” information that does not exist in Patent Document 3 is further added. In combination, it can be provided to recipients.

  Hereinafter, a first embodiment according to the present invention will be described.

  FIG. 1 shows a first embodiment according to the present invention.

  In FIG. 1, reference numeral 1 denotes a horn unit that generates a large noise when instructed to operate the horn from the outside. When considering the case where the configuration of FIG. 1 is incorporated in an automobile, the horn unit 1 may be a horn normally installed in an existing automobile.

  Reference numeral 2 denotes a radio horn unit. When an instruction to operate the horn is given from the outside, an alarm radio wave that can be identified as an alarm is generated while the instruction is given, and the radio wave is propagated by FM modulation. A transmission antenna is set and transmitted so that the distance is limited within a predetermined range. For the identifiable alarm radio wave, a specific code determined in advance is stored in a memory and embedded in the radio wave source signal when the radio wave is generated.

  Reference numeral 3 denotes a horn switch. When the driver instructs the horn operation so as to call attention to a person or car in front of the field of view, the horn broadcast transmission unit of the horn unit 1 and the radio horn unit 2 is instructed. An instruction is sent to both to activate the horn, and if the driver's instruction stops, the sending is stopped. In the case of an existing automobile, the horn switch 3 is conveniently installed on the steering wheel.

  The horn unit 1, the radio wave horn unit 2 and the horn switch 3 are installed on the vehicle side and constitute a vehicle installation horn unit.

  Next, components of a pedestrian holding horn receiving unit held by a hearing impaired person or an elderly pedestrian will be described.

  Reference numeral 4 denotes a receiving antenna that receives an identifiable alarm radio wave.

  Reference numeral 5 denotes four vibrators that are arranged at positions corresponding to the four directions of the right-angled diagonal line, and vibrate for tactile notification to a hearing-impaired person according to instructions from the outside. When each vibrator receives an instruction from the outside, each vibrator converts it into a motor drive signal, and drives the motor included in the vibrator using this motor drive signal.

  Reference numeral 6 denotes a microphone array that includes four microphones corresponding to the four vibrators, and identifies and outputs the direction of the sound source of the sound emitted from the horn unit 1. Each vibrator of the vibrator 5 and each microphone of the microphone array 6 correspond one to one. The microphone array 6 may be a commercial product.

  Further, in this figure, four directions are used for simplicity, but it is possible to install microphones in finer directions, such as 6, 8, and 12, and similarly, the same number of vibrators. As the number of microphones and vibrators increases, the accuracy of identifying the direction of the sound source increases. On the other hand, the cost increases and the weight of the device also increases, so the balance between accuracy and practical use is important. In the present embodiment, the number of microphones is not specified and is set as necessary. For example, microphones can be set in two directions and three directions. However, at intersections and the like, bicycles and the like may appear from the front and rear and from the left and right, so it is desirable that there are four or more directions.

  7 receives an alarm radio wave that can be identified by the receiving antenna 4, and instructs the microphone array 6 to identify the direction of the sound source. The vibrator 5 corresponding to the direction obtained from the identification result is displayed for a certain period of time. A horn reception control unit to be operated. The reception antenna 4, vibrator 5, microphone array 6, and horn reception control unit 7 collectively constitute a pedestrian holding horn reception unit.

  The processing flow of the horn reception control unit is shown as a flowchart in FIG.

  Prior to the processing, the horn reception control unit 7 stores the same identifiable code stored in the memory of the radio horn unit 2 in the memory in advance. The horn reception control unit 7 always receives an alarm radio wave that can be identified by the reception antenna 4. When a radio wave is received by the receiving antenna 4 (step S100), the code included in the radio signal is collated with a specific code stored in the memory (step S101). While collation does not match, it is ignored as it is (step S102). As long as there is no vehicle around the horn reception control unit 7 or the vehicle is not ringing the horn, the verification is not established for most of the time.

  On the other hand, when a car comes near and a driver rings a horn from a car that has a device on the transmission side based on this embodiment, an alarm radio wave is emitted at the same time. Can be taken. When collation is obtained in such a situation, it is identified that a desired alarm radio wave has been received, and an instruction is given to the microphone array 6 to identify the direction of the sound source (step S103). Direction information, which is an identification result, is received from the microphone array 6. Then, a command is issued to vibrate the vibrator 5 arranged in the direction information for a certain time (step S104).

  As a result of checking a specific code in this way, it is common for each vehicle and for each receiver. Therefore, any pedestrian holding the receiver for any alarm wave from any vehicle having the horn device of the present invention. You will be able to react to.

  Next, a second embodiment according to the present invention will be described.

  In the second embodiment, only the vehicle installation horn part of the first embodiment is replaced with a new one, and the same pedestrian holding horn receiving part as that of the first embodiment is used.

  In FIG. 2, reference numeral 11 denotes a distance variable horn unit that is a horn that generates a large noise if the reach distance is long and a small noise if the reach distance is small when the horn is instructed from outside with a specified value of the reach distance. . As for the designated value of the reach distance, there can be a plurality of stages such as three stages and ten stages like a bicycle gear. In the present embodiment, a specific number of stages is not specified, and an arbitrary number can be set as necessary.

  When the configuration of the embodiment of FIG. 2 is considered in the case of being incorporated in an automobile, the distance variable horn unit 11 may be a horn (horn) that is normally installed in an existing automobile. A horn installed in an existing automobile can usually be generated with a variable volume. As for the designated value of the reach distance, there can be a plurality of stages such as three stages and ten stages like a bicycle gear. In the present embodiment, a specific number of stages is not specified, and an arbitrary number can be set as necessary.

  Reference numeral 12 denotes a variable distance radio horn unit, which generates an alarm radio wave that can be identified as an alarm while instructed to operate the horn together with a designated value of the reach distance from the outside. With an FM modulated radio wave, a transmission antenna is set and transmitted so that the propagation distance of the radio wave is long if the designated arrival distance is long, and the propagation distance is short if it is small.

  The distance variable type radio horn unit 12 has the same mechanism as the radio horn unit 2, but when a designated value of the reach distance is given from the outside, the radio field intensity is read with reference to a correspondence table as shown in FIG. It broadcasts to the surroundings using its radio field strength. Here, the reach distance level is set in three stages, the level 1 radio wave intensity reaches around 10 meters, the level 2 radio wave intensity reaches around 30 meters, and the level 3 radio wave intensity reaches around 50 meters. Yes. Note that this is an approximation, and even if it is about 30 meters around, depending on the surrounding environment, it may propagate over 30 meters, or conversely, it may propagate only below that.

  Reference numeral 13 denotes a variable distance horn switch. When the driver instructs the horn operation including the distance of the reach so as to call attention to the person and the vehicle in front of the field of view, the horn unit and the radio horn are instructed. This is a variable distance type horn switch that sends an instruction to operate both horns including the perspective setting to operate the horn and stops sending if the driver's instruction stops.

  Similarly to the horn switch 3, the variable distance type horn switch 13 is conveniently installed on the steering wheel if it is an existing automobile. In the case of the variable distance type horn switch 13, unlike the horn switch 3, the driver needs to be able to input the level easily. Although the form is not specified in the present embodiment, FIG. 2 shows an example in which there are three levels. Here, three button switches are arranged in succession. By pressing any of these, the driver can instruct the generation of a horn with a specified reach distance. The horn reception control unit according to the first and second embodiments described above is configured by hardware such as a dedicated IC, but can also be realized by software. The computer is composed of storage means such as CPU and ROM, and memory such as RAM, and the operation of the horn reception control unit as shown in FIG. 3 is described by a program. The function of the horn reception control unit of the present embodiment can be realized by a program by storing necessary information in a memory such as a RAM and causing the CPU to operate the program.

  According to the configuration of each embodiment described above, the driver can be used for a person who is difficult to hear the horn of a car or motorcycle by sound, such as a hearing impaired person or an elderly person, or a worker who is noisy. It is possible to provide a mechanism for notifying by means of vibration other than sound. At this time, not only on / off of vibration, but also in which direction the sound source is present can be communicated.

  Further, according to the configuration of each embodiment, the range in which the driver wants to propagate the horn can be variably specified according to the distance. This makes it possible to generate a horn in the case of “I want to notify a wide range of distances although the degree of urgency is low” (for example, a car of a waste collection company is passing).

  A part or all of the above embodiment can be described as in the following supplementary notes, but is not limited to the following configuration.

(Appendix 1)
A receiving antenna for receiving an identifiable alarm radio wave output together with a horn sound; and
While detecting the horn sound, horn sound detection identifying means for identifying the direction of the horn sound,
Informing means for informing the direction of the horn sound identified by the horn sound detection and identification means,
When receiving the identifiable alarm radio wave by the receiving antenna, the horn sound detection and identification means is instructed to identify the direction of the horn sound, and the notification means is informed of the direction obtained by the identification result. A horn reception control unit,
A horn receiver.

(Appendix 2)
In the horn receiver according to appendix 1,
The notification means includes a plurality of notification elements, and the horn reception control unit operates a notification element arranged in the direction of the horn sound among the plurality of notification elements to notify the direction of the horn sound. Receiver device.

(Appendix 3)
The horn receiver according to appendix 1, wherein the horn sound detection and identification unit is a microphone array including a plurality of microphones provided corresponding to the plurality of notification elements.

(Appendix 4)
A horn unit that generates a horn sound if the specified reaching distance is long and small if the reaching distance is small;
A radio horn unit that transmits an alarm radio wave so that a propagation distance of the alarm radio wave is long if the reach distance is long, and a distance of the alarm radio wave is close if the reach distance is small, and a horn operation that includes the reach distance In response to the instruction, both the horn unit and the radio horn unit are operated by designating the reach distance, and when the horn operation instruction is stopped, both the horn unit and the radio horn unit are operated. A horn generator having a horn switch for stopping
A horn system comprising the horn receiver according to any one of appendices 1 to 3.

(Appendix 5)
Receives an identifiable alarm wave output with the horn sound,
Upon receiving the identifiable alarm radio wave, the horn sound is detected and the direction of the horn sound is identified,
A method for driving a horn receiver, which informs the identified direction by an informing means for informing the direction of the horn sound.

(Appendix 6)
In the driving method of the horn receiver according to appendix 5,
The notification means includes a plurality of notification elements, and a driving method of a horn receiver that notifies a direction of the horn sound by operating a notification element arranged in the direction of the horn sound among the plurality of notification elements.

(Appendix 7)
The horn receiver driving method according to appendix 5, wherein the horn sound is detected and identified by a plurality of microphones provided corresponding to each of the plurality of notification elements.

(Appendix 8)
On the computer,
A function for instructing the horn sound detection and identification means to detect the horn sound and to identify the direction of the horn sound when receiving an identifiable alarm radio wave output together with the horn sound,
A function of controlling the notification means so as to notify the direction of the horn sound identified by the horn sound detection identification means by the notification means;
A program that executes

  The present invention relates to a horn receiver, a horn system, a horn receiver driving method and a horn receiver used for vehicles such as automobiles, motorcycles, bicycles, etc., especially for electric cars and electric bicycles that do not generate engine noise, or at construction sites where noise is high. Applies to the program.

1 Horn
2 Radio horn
3 Horn switch
4 Receive antenna
5 Vibrator
6 Microphone array
7 Horn reception controller
11 Distance variable horn
12 Distance variable radio horn
13 Distance variable horn switch

Claims (8)

A receiving antenna that receives an identifiable alarm radio wave output simultaneously with the horn sound, and
While detecting the horn sound, horn sound detection identifying means for identifying the direction of the horn sound,
Informing means for informing the direction of the horn sound identified by the horn sound detection and identification means,
When receiving the identifiable alarm radio wave by the receiving antenna, the horn sound detection and identification means is instructed to identify the direction of the horn sound, and the notification means is informed of the direction obtained by the identification result. A horn reception control unit,
A horn receiver. The horn receiver according to claim 1,
The notification means includes a plurality of notification elements, and the horn reception control unit operates a notification element arranged in the direction of the horn sound among the plurality of notification elements to notify the direction of the horn sound. Receiver device. The horn receiver according to claim 1,
The notification means includes a plurality of notification elements,
The horn sound detection and identification means is a horn receiver that is a microphone array including a plurality of microphones provided corresponding to the plurality of notification elements. A horn unit that generates a horn sound if the specified reaching distance is long and small if the reaching distance is small;
A radio horn unit for transmitting an alarm radio wave so that a propagation distance of the alarm radio wave is long if the arrival distance is long, and a propagation distance of the alarm radio wave is close if the arrival distance is small, and a horn including the reach distance In response to the operation instruction, both the horn unit and the radio horn unit are operated by specifying the reach distance, and when the horn operation instruction is stopped, both the horn unit and the radio horn unit A horn generator having a horn switch to stop operation;
A horn system comprising the horn receiver according to any one of claims 1 to 3. Receives an identifiable alarm signal that is output simultaneously with the horn sound,
Upon receiving the identifiable alarm radio wave, the horn sound is detected and the direction of the horn sound is identified,
A method for driving a horn receiver, which informs the identified direction by an informing means for informing the direction of the horn sound. In the driving method of the horn receiver according to claim 5,
The notification means includes a plurality of notification elements, and a driving method of a horn receiver that notifies a direction of the horn sound by operating a notification element arranged in the direction of the horn sound among the plurality of notification elements. In the driving method of the horn receiver according to claim 5,
The notification means includes a plurality of notification elements,
A method of driving a horn receiver, wherein the detection and identification of the horn sound are performed by a plurality of microphones provided corresponding to each of the plurality of notification elements. On the computer,
When a receiving antenna receives an identifiable alarm radio wave that is output simultaneously with the horn sound, the horn sound detection and identification means detects the horn sound and instructs to identify the direction of the horn sound;
A function of controlling the notification means so as to notify the direction of the horn sound identified by the horn sound detection identification means by the notification means;
A program that executes

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