JP6390533B2 - Directional voice alarm device - Google Patents

Description

  The present invention relates to a directional sound alarm device.

  2. Description of the Related Art Conventionally, a monitoring system that performs process monitoring on the site of plant operation immediately transmits a voice alarm regardless of the presence or absence of a target worker when the alarm is generated. Therefore, when the target worker is absent, there is a possibility that the voice alarm is missed. Further, since the voice alarm is transmitted from the omnidirectional speaker, there is a possibility that the target worker cannot recognize that the target worker is transmitted to himself / herself.

JP 2005-294614 A

  For such a problem, Patent Document 1 discloses a configuration in which an operator detection sensor detects an operator and issues a sound alarm from a directional speaker. However, since workers cannot be distinguished, an alarm is sent to a non-target worker, and the target worker may miss the contents of the voice alarm. In addition, because the direction of the directional speaker is fixed, if the worker's work area is larger than the area covered by the directional speaker, the voice alert may not be issued even if the worker exists in the work area There is.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a directional audio alarm device capable of transmitting an audio alarm to a target worker with high recognizability.

In order to achieve the above object, a first invention is a directional sound alarm device,
A directional speaker that outputs sound having directivity in a specific direction;
A position information transmission device that is carried by the worker and transmits position information with the identifier of the worker every time;
Means for calculating a position and a moving speed of the position information transmitting device based on the position information;
Means for transmitting an audio alert enable signal when the position is in a work area associated with the operator's identifier and the moving speed is less than or equal to a set speed;
Means for directing the directional speaker to the position information transmitting device based on the position when the audio warning enable signal is received;
Means for causing the directional speaker to emit an audio alarm when the audio alarm enabling signal is received.

The second invention is the first invention, wherein
Means for accumulating a plurality of alarms transmitted from the plant monitoring system;
And a means for consolidating the plurality of alarms into one alarm having a higher alarm level than the plurality of alarms to form the voice alarm.

The third invention is the first or second invention, wherein
After the audio warning enable signal is transmitted, the position of the position information transmission device is out of the work area associated with the operator identifier, or the movement speed of the position information transmission device is faster than the set speed. Means for transmitting a voice warning impossible signal;
And a means for interrupting the transmission of the voice alarm until the next voice warning signal is received when the voice warning impossible signal is received.

  According to the first aspect, by using the operator identifier, it is possible to confirm that the target worker exists in the work area and to emit voice information. In addition, since the sound alarm is issued after the directional speaker is directed toward the target worker, the worker can easily recognize the alarm and can prevent omission of alarm confirmation. Therefore, according to the present invention, a voice alarm can be transmitted to the target worker with high recognizability. According to the directional audio alarm device according to the present invention, it is possible to provide a good on-site work environment to the worker at the site of the process monitoring operation that issues an audio alarm.

  According to the second invention, a plurality of alarms transmitted from the plant management system can be integrated into an alarm having a higher alarm level. Therefore, according to the present invention, the confirmation load on the target worker is reduced, and the target worker can recognize the important warning without missing it.

  According to the third invention, when the worker is absent during the transmission of the voice warning, the voice warning can be interrupted until the next presence of the target worker can be confirmed. Therefore, according to the present invention, it is possible to prevent the target worker from missing the voice alarm.

It is the schematic which shows schematic structure of the directional audio | voice warning apparatus which concerns on Embodiment 1 of this invention. It is a block diagram for demonstrating the structure and its operation | movement of the directional audio | voice warning apparatus which concern on Embodiment 1 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the element which is common in each figure, and the overlapping description is abbreviate | omitted.

Embodiment 1 FIG.
[System Configuration of Embodiment 1]
FIG. 1 is a schematic diagram showing a schematic configuration of a directional audio alarm device according to Embodiment 1 of the present invention. FIG. 2 is a block diagram for explaining the configuration and operation of the directional sound alarm device according to Embodiment 1 of the present invention.

  The directional sound alarm device shown in FIG. 1 includes a position information transmission device 10, a position information reception device 20, a sound alarm control device 30, and a sound alarm transmission device 40.

  The position information transmitting apparatus 10 is a terminal that each worker can wear and carry. The position information transmission device 10 is carried by an operator, and a different identifier is assigned to each worker. The position information transmitting apparatus 10 transmits, to the position information receiving apparatus 20 by wireless communication, a position information signal with an operator identifier added to a signal received from a plurality of GPS (Global Positioning System) satellites every time.

  Specifically, the position information transmitting apparatus 10 includes a GPS signal receiving unit 11 and a position information transmitting unit 12. The GPS signal reception unit 11 transmits signals received from a plurality of GPS satellites (including time data of a clock mounted on the satellite, information on the satellite ephemeris (orbit), etc.) to the position information transmission unit 12 every time. To do.

  The position information transmission unit 12 transmits a position information signal obtained by adding an operator identifier to the signal transmitted from the GPS signal reception unit 11 to the position information reception device 20 by wireless communication.

  The position information receiving apparatus 20 includes a position information receiving unit 21 that receives the position information signal transmitted from the position information transmitting apparatus 10. The location information receiving device 20 transmits a location information signal to the voice alarm control device 30 by wired communication.

  The sound alarm control device 30 is a control device that operates the direction of the directional speaker 42 that outputs sound having directivity in a specific direction based on the position information signal, and causes the directional speaker 42 to output a sound alarm. Hereinafter, the operation of the voice alarm control device 30 will be described with reference to FIG.

  The voice alarm control device 30 includes a position information calculation unit 31, a direction operation signal calculation unit 32, a voice warning editing unit 33, and a voice signal transmission unit 34.

  The position information calculation unit 31 first receives a position information signal transmitted from the position information receiving device 20. Next, the position information calculating unit 31 calculates the position and moving speed of the position information transmitting apparatus 10 based on the position information signal.

  Next, the position information calculation unit 31 determines whether or not a voice alarm can be transmitted using the calculated position and moving speed of the position information transmission device 10.

  Specifically, the position information calculation unit 31 is in a work area where the position of the position information transmission device 10 is associated with the identifier of the worker, and the movement speed of the position information transmission device 10 is equal to or lower than the set speed. It is determined that a voice alarm can be sent. Here, a work area in charge is assigned to the worker, and the identifier of the worker is associated with the work area in charge.

  When the position information calculation unit 31 determines that a voice alarm can be transmitted, the position information calculation unit 31 transmits a voice alarm enable signal to the direction operation signal calculation unit 32 and the voice alarm editing unit 33. The audio warning enable signal includes an operator identifier.

  Next, when the position information calculation unit 31 determines that a voice alarm can be transmitted, the position information calculation unit 31 transmits a signal related to the position and the moving speed of the position information transmission device 10 to the direction operation signal calculation unit 32.

  When the direction operation signal calculation unit 32 receives a voice alarm enable signal from the position information calculation unit 31 and a signal related to the position and moving speed of the position information transmission device 10, the direction operation signal calculation unit 32 of the voice alarm transmission device 40 is based on the received signal. Determine the voice transmission direction.

  Specifically, the direction operation signal calculation unit 32 determines a voice transmission direction so that the directional speaker 42 included in the voice warning transmission device 40 is directed to the position information transmission device 10, and a direction operation signal corresponding to the voice transmission direction. Is transmitted to the voice alarm transmitter 40.

  Here, the position information calculation unit 31 transmits a signal related to the position and moving speed of the position information transmitting apparatus 10, but only a signal related to the position of the position information transmitting apparatus 10 may be transmitted. In this case, the direction operation signal calculation unit 32 determines the voice transmission direction of the voice alarm transmission device 40 based on the signal related to the position of the position information transmission device 10.

  The voice alarm transmission device 40 includes a direction controller 41 and a directional speaker 42. First, the direction operation device 41 receives a direction operation signal from the direction operation signal calculation unit 32. The direction operation device 41 controls the drive unit (motor and drive device) connected to the directional speaker 42 according to the received direction operation signal, and changes the direction of the directional speaker 42. The direction operation device 41 transmits the setting completion signal to the direction operation signal calculation unit 32 after directing the directional speaker 42 toward the position information transmission device 10.

  Next, the direction operation signal calculation unit 32 receives the setting completion signal from the voice warning transmission device 40 and transmits the setting completion signal to the voice warning editing unit 33.

  The voice warning editing unit 33 receives a voice warning enable signal from the position information calculation unit 31 and a setting completion signal from the direction operation signal calculation unit 32. The voice alarm editing unit 33 is connected to the plant monitoring system and has a function of accumulating a plurality of alarms transmitted from the plant monitoring system.

  Preferably, the voice warning editing unit 33 has a function of collecting a plurality of warnings accumulated in the voice warning editing unit 33 into one warning having a higher warning level than the plurality of warnings to be a voice warning.

  Specifically, when the voice warning editing unit 33 receives a voice warning possible signal, the number of warnings related to the operator identifier among the warnings stored in the voice warning editing unit 33 is designated in advance. Judge whether the specified number is exceeded. When the voice alarm editing unit 33 determines that the accumulated alarm does not exceed the designated number, the information is transmitted to the voice signal transmission unit 34 as a voice alarm without changing the contents of the accumulated alarm. To do. On the other hand, when it is determined that the accumulated alarm exceeds the specified number, the audio alarm editing unit 33 changes the content of the accumulated alarm and transmits the information to the audio signal transmission unit 34 as an audio alarm. To do.

  Here, the contents of the accumulated alarm are changed as follows. When a plurality of first alarm level alarms are generated for the predetermined device, it is determined that a serious abnormality has occurred in the predetermined device, and the plurality of alarms are set to a second alarm level higher than the first alarm level. The alarms are aggregated into one alarm and this is used as an audio alarm.

  The voice alarm editing unit 33 transmits the edited voice warning to the voice signal transmission unit 34 when the setting completion information is further received from the direction operation signal calculation unit 32 after the processing in the case where the voice warning enable signal is received.

  The audio signal transmission unit 34 transmits an audio alarm to the directional speaker 42 based on the audio alarm received from the audio alarm editing unit 33. The directional speaker 42 issues a sound alarm.

  Preferably, when the voice alarm control device 30 detects the movement of the worker during the transmission of the voice alarm, the voice warning control device 30 stops sending the voice alarm and waits until the voice alarm can be sent again.

  Specifically, the position information calculation unit 31 transmits the voice alarm enable signal, and then the position information transmission device 10 moves outside the work area where the position of the position information transmission device 10 is associated with the operator's identifier or the movement of the position information transmission device 10. When the speed becomes faster than the set speed, a voice warning impossible signal is transmitted to the voice warning editing unit 33.

  When the voice warning editing unit 33 receives a voice warning impossible signal, the voice warning editing unit 33 interrupts the transmission of the voice warning until the next time a voice warning possible signal is received. The voice alarm whose transmission is interrupted is stored in the voice alarm editing unit 33 as an unsent voice alarm. Note that the voice warning editing unit 33 accumulates a warning transmitted from the plant monitoring system during a period when the voice warning enabling signal is not received from the position information calculation unit 31.

  As described above, according to the directional voice alarm device according to the first embodiment, by using the operator identifier, it is confirmed that the target worker exists in the work area, and the voice information is emitted. be able to. In addition, since the voice alarm is issued after the directional speaker 42 is directed to the target worker, the worker can easily recognize the warning and can prevent an alarm check from being missed. In addition, since multiple alarms sent from the plant management system can be aggregated into alarms with higher alarm levels, the burden on the target worker's confirmation is reduced, and the target worker misses important alarms. It can be recognized without. Also, if the worker is absent during the voice alert transmission, the voice alert can be interrupted until the next time the target worker is confirmed, so the target worker misses the voice alert. Can be prevented. Therefore, according to the present invention, a voice alarm can be transmitted to the target worker with high recognizability. According to the directional audio alarm device according to the present invention, it is possible to provide a good on-site work environment to the worker at the site of the process monitoring operation that issues an audio alarm.

DESCRIPTION OF SYMBOLS 10 Position information transmitter 11 GPS signal receiver 12 Position information transmitter 20 Position information receiver 21 Position information receiver 30 Voice alarm controller 31 Position information calculator 32 Direction operation signal calculator 33 Voice alarm editor 34 Voice signal transmission Unit 40 Voice alarm transmitter 41 Directional controller 42 Directional speaker

Claims (3)

A directional speaker that outputs sound having directivity in a specific direction;
A position information transmission device that is carried by the worker and transmits position information with the identifier of the worker every time;
Means for calculating a position and a moving speed of the position information transmitting device based on the position information;
Means for transmitting an audio alert enable signal when the position is in a work area associated with the operator's identifier and the moving speed is less than or equal to a set speed;
Means for directing the directional speaker to the position information transmitting device based on the position when the audio warning enable signal is received;
Means for causing the directional speaker to emit an audio alarm when the audio alarm enable signal is received;
A directional voice alarm device comprising: Means for accumulating a plurality of alarms transmitted from the plant monitoring system;
Means for consolidating the plurality of alarms into one alarm having a higher alarm level than the plurality of alarms, and making the sound alarm;
The directional sound alarm device according to claim 1, comprising: After the audio warning enable signal is transmitted, the position of the position information transmission device is out of the work area associated with the operator identifier, or the movement speed of the position information transmission device is faster than the set speed. Means for transmitting a voice warning impossible signal;
Means for interrupting the transmission of the voice alert until the next voice alert enable signal is received when the voice alert disabling signal is received;
The directional sound alarm device according to claim 1, comprising:

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