JP2905023B2 - Elevator sound system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio apparatus for an elevator, which provides voice guidance to an elevator user and enables a conversation with an external person through an intercom system in an emergency.

[0002]

2. Description of the Related Art In recent years, a variety of devices have been used to improve the use environment of elevators, which are vertical transportation systems in buildings. This is due to the fact that elevators have not only functioned as transportation means but also as important facilities in buildings, and it has been demanded that human interface functions be enhanced for users. In particular, the voice guidance announcement function has come to perform various broadcasts as a user-friendly function. For example, an elevator arrival announcement such as "I'm on the first floor" or "I'm on the second floor" or "The door closes."
In addition to conventional announcements such as door opening / closing announcements as described above, enhancements have been made to a function of giving voice announcements when a user has trouble operating. The latter guidance announcement is sometimes referred to as an attentive announcement, and is intended to allow the user to respond to the guidance announcement when the operation is lost or an abnormality occurs.
As an example of this, when it is full, it is necessary to re-register the call, "You are full. Please get off at the end." When you need to re-register, please press the destination floor button again. There are announcements such as.

[0003] In general, a method of outputting voice for such a guidance announcement by voice synthesis for restoring voice data stored in an IC chip is adopted. And the voice synthesizer of the elevator is often installed in the elevator car, while the elevator control device that outputs the voice command is installed in the machine room of the building,
The signals between them are controlled by a serial transmission scheme.

[0004] Generally, the number of voice messages is about 30 messages, and if other control commands are included, about 50 signals are required. However, if these signals are transmitted and received in parallel, the required number of wires is 50. As a result, not only the number of electric wires increases, but also an interface device for receiving these electric wires becomes large. Therefore, the control is performed by using about two wires by the serial transmission method. Generally, the serial transmission method is based on RIA according to the EIA standard.
In many cases, S485 is adopted, and a serial bus structure is used in which an elevator control device installed in a machine room is a master. In addition, a wire called a twisted pair wire is often used.

The structure of a voice synthesizer for voice announcement in an elevator is generally as shown in FIGS. FIG. 5 shows a case where the voice synthesizer 1 is installed on the operation panel 3 of the elevator car 2. The operation panel 3 includes a car call button 4, a door open button 5 for generating an elevator operation command, and a door opening button 5. It comprises a door closing button 6, an elevator position indicator 7, an intercom 8, and the like.

Here, the intercom 8 is the only communication means for seeking rescue when the elevator is out of order, etc.
This is a device that allows a user to talk with a building manager via the intercom microphone 12 by pressing 1.

[0007] The voice guidance speaker 9 of the voice synthesis device 1
Due to its structure, a hole for sound emission must be provided in the mounting panel in front of it, and it is often installed side by side with the intercom speaker 10 of the intercom 8 from the design point of view, and the large intercom speaker 10 is operated by elevator passengers. It will take the form that appears to be installed on the board 3.

The general electrical configuration of the speech synthesizer 1 is as shown in FIG. 6, and a general signal from a control device 14 in an elevator machine room 13 is transmitted via a serial transmission line 15 such as a twisted pair line. The transmission is transmitted to the serial transmission control unit 16 on the elevator car side, and the important signal is received by the parallel transmission control unit 18 via the general electric wire 17. In accordance with the received command, the control CPU 19 analyzes the data according to the procedure stored in the storage unit 20 and instructs the voice synthesis processing unit 21 to issue a voice guidance message command. Is read out at sampling time intervals in accordance with a voice synthesis method, D / A converted, and then output from the voice guidance speaker 9.

[0009]

However, as described above, the conventional elevator audio apparatus has a problem that a general voice guidance speaker may adversely affect the intercom for emergency use. .

One of them is that the above announcement is made in voice guidance. However, regardless of the mode, a situation arises in which an intercom must be used when an abnormality occurs. In such a case, the sound output from the voice guidance speaker 9 may be wrapped around and input to the microphone 12 of the intercom 8, so that the interphone 8 may not be able to communicate.

FIG. 7 shows an electrical configuration of the intercom 8, which is generally composed of an intercom speaker 10, an intercom microphone 12, and an audio amplifier 23.
And a voice switch 24. The intercom 8 used in the elevator car 2 does not have a handset like a telephone, and an intercom speaker 10 and an intercom microphone 12 are mounted at a position close to each other. Utter toward you. In the interphone 8 having such a structure, the sound output from the intercom speaker 10 is
The pick-up causes a howling phenomenon, and the sound output from the intercom speaker 10 becomes a keen sound. Therefore, by providing the voice switch 24, the volume in both directions for talking, that is, the sound output from the speaker 10 and the microphone 12 The loudness of a sound coming from the speaker 10 is measured, and the loudest sound is prioritized. Even if the sound output from the speaker 10 is picked up by the microphone 12, the voice switch 24 does not pass the sound, thereby preventing the occurrence of the howling phenomenon. It is.

However, when such a voice switch 24 is provided, when a voice announcement is issued from the voice synthesizer 1 during use of the intercom 8, the microphone 12 picks up the sound, and the voice switch 24 uses the voice as a voice input. In order to output to the elevator manager side, the voice from the elevator manager side is switched to the voice switch 2.
In some cases, the signal is blocked at 4 and is not output from the speaker 10.

The situation in which the conversation through the intercom 8 cannot be performed due to the output of the voice guidance occurs only for a few seconds at most, but in an emergency, it is possible to know what else will occur. In some cases, if the guidance voice is continuously announced due to an abnormal situation, the conversation through the intercom 8 may become impossible.

Another problem is that the voice guidance speaker 9
And intercom microphone 12 and intercom speaker 10
Are arranged side by side on the surface plate of the operation panel 3. Further, the voice guidance speaker 9 is always in a state in which voice can be output by the voice amplification function of the voice synthesis processing unit 21 in the voice synthesis device 1. For this reason, a very small driving output is always applied to the voice guidance speaker 9, and a very small vibration is input to the intercom microphone 12 through the surface plate.
There was also a problem of noise.

[0015] These problems are, in particular, in the case of an acoustic device for an elevator, a microphone and an output target are completely different.
Voice control must be performed in a closed room with two speakers, and since the elevator car is made of metal and has high acoustic coupling, it is an important problem that must be solved especially. Had become.

The present invention has been made in view of such a conventional problem, and provides an elevator audio apparatus capable of reliably operating an intercom facility in an emergency and improving acoustic performance. The purpose is to:

[0017]

A first aspect of the present invention is an audio apparatus for an elevator in which a speaker and an intercom facility for providing a guidance announcement to an elevator user by voice are installed in an operation panel of the elevator car. A speaker and a microphone of an intercom are installed on the top, and a speaker for voice guidance is installed on the operation panel at a position that does not affect the directivity range of the microphone.

According to a second aspect of the present invention, in the elevator audio apparatus of the first aspect, the speaker for voice guidance is housed in a speaker case and installed on an operation panel surface plate.

According to a third aspect of the present invention, in the elevator audio apparatus of the second aspect, a voice guidance speaker is housed in a speaker case together with a voice synthesis unit that synthesizes a guidance voice to be output to the speaker.

According to a fourth aspect of the present invention, there is provided an elevator sound apparatus in which a speaker for giving a guidance announcement to an elevator user by voice and an intercom equipment are installed in the operation panel of the elevator car, wherein the speaker of the interphone is provided on the operation panel surface plate. A microphone is installed, and a speaker for voice guidance is installed on the back panel of the operation panel at a position behind the intercom.

According to a fifth aspect of the present invention, in the elevator audio apparatus of the fourth aspect, the speaker for voice guidance is housed in a speaker case and installed on the back panel of the operation panel.

According to a sixth aspect of the present invention, in the elevator audio apparatus of the fifth aspect, the guide speaker is housed in a speaker case together with a voice synthesizing section for synthesizing a guide voice to be output to the speaker.

According to a seventh aspect of the present invention, in the elevator audio apparatus according to any one of the fourth to sixth aspects, a speaker of the intercom is mounted on the operation panel surface plate with a predetermined gap.

[0024]

According to the first aspect of the present invention, there is provided an elevator acoustic device.
The intercom speaker and microphone are installed on the operation panel surface plate, and the voice guidance speaker is installed on the operation panel at a position that does not affect the directivity range of the microphone. In addition, the voice of the guidance announcement is not input to the microphone at a high level, so that the function of the intercom is not adversely affected and the function of the intercom in an emergency is not hindered.

In the elevator audio apparatus according to the second aspect of the present invention, the audio output of the guidance announcement is improved by storing the audio guidance speaker in the speaker case and installing it on the operation panel surface plate.

In the elevator audio apparatus according to the third aspect of the present invention, the voice guidance speaker is housed in the speaker case together with the voice synthesis unit for synthesizing the guidance voice to be output to the voice guidance speaker, so that the synthesized voice output to the voice guidance speaker is provided. Can be given from the voice synthesizing unit in the same speaker case, and the number of signal lines to the elevator control device installed in the machine room can be reduced.

According to the fourth aspect of the present invention, the speaker and the microphone of the intercom are installed on the front panel of the operation panel, and the speaker for voice guidance is installed on the rear panel of the operation panel at a position behind the interphone. Accordingly, even if the voice guidance announcement is output from the voice guidance speaker while the emergency intercom is being used, the guidance voice does not sneak into the microphone and hinders the function of the intercom.

In the elevator audio apparatus according to the fifth aspect of the present invention, the sound quality of the voice guidance announcement can be improved by storing the voice guidance speaker in the speaker case and installing it on the back panel of the operation panel. it can.

In the elevator audio apparatus according to the sixth aspect of the present invention, the synthesized voice output to the voice guidance speaker is housed in the speaker case together with the voice synthesis unit for synthesizing the guidance voice to be output to the guidance speaker. The signal can be supplied from the voice synthesizing unit in the same speaker case, and the number of signal lines to the elevator control device installed in the machine room can be reduced.

In the elevator audio apparatus according to the present invention, the speaker of the intercom is mounted on the operation panel surface plate through a predetermined gap, so that the output of the voice guidance speaker is controlled by the gap between the interphone speaker and the surface plate. Can be output to the outside through the surface plate, and the voice of the guidance announcement can be easily heard.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a common embodiment of the first and second aspects of the present invention, and shows a mounting structure on the back surface of a surface plate 3a of an operation panel 3 in an elevator car 2 shown in FIG. An intercom 8 is installed at an appropriate position on the back surface of the surface plate 3a of the operation panel 3, that is, at a portion between the position indicator 7 and the mounting positions of the operation buttons 4, 5, 6 as shown in FIG. A voice guidance speaker 9 hermetically sealed in a speaker case 25 is mounted on the back of the downwardly inclined portion 3b of the operation panel surface plate 3a at a lower position.

It is assumed that the intercom 8 houses an interphone speaker 10 and a microphone 12, and also houses a circuit part of an audio amplifier 23 and a voice switch 24 as shown in FIG.

The inclination angle of the inclined portion 3b to which the voice guidance speaker 9 is attached is not particularly limited, but the voice of the voice guidance announcement must be output in a direction that does not affect the directional characteristics of the intercom microphone 12.

Thus, in the elevator audio apparatus of this embodiment, even if the voice guidance announcement is output from the voice guidance speaker 9 while the intercom 8 is used in an emergency, the guidance voice is transmitted to the interphone microphone 12. Input with large sound pressure in the range of directional characteristics of
As a result, the voice switch 24 is actuated so that the output from the intercom speaker 10 is not adversely affected.

According to the first aspect of the present invention, the speaker 9 for voice guidance can be attached to the rear surface of the inclined portion 3b of the surface plate 3a of the operation panel 3 without being housed in the speaker case. In the first and second aspects of the present invention, the mounting position of the voice guidance speaker is not particularly limited to the downward inclined portion as described above. Part, and a voice guidance speaker can be attached to it, or an upwardly inclined part can be formed and attached to it, and the sound of the guidance announcement with high sound pressure within the range of the directional characteristics of the intercom microphone. The mounting method and the mounting position are not limited as long as they are not input.

Next, based on FIGS.
A common embodiment of the invention according to claim 7 will be described. FIG. 2 shows the mounting structure of the rear surface of the operation panel 3 in the elevator car 2 shown in FIG. 5 at an appropriate position on the rear surface of the surface panel 3a of the operation panel 3, that is, FIG. The intercom 8 is installed at a position between the position indicator 7 and the mounting positions of the operation buttons 5 and 6, and is closed by the speaker case 25 on the back plate 3 c of the operation panel 3 at the rear position of the interphone 8. A voice guidance speaker 9 having a structure is provided. The stored state of the voice guidance speaker 9 is shown in FIG.
4 and FIG. 4, the speaker 9 is attached to the front inside the speaker case 25, and the circuit components constituting the voice synthesizer 1 shown in FIG. The voice synthesizer 1 is usually 100 mm × 1
Since it is about 00 mm x 20 mm, the speaker case 2
5 needs to be of a volume that can accommodate both the voice synthesizer 1 and the speaker 9.

However, it is impossible to make the speaker case 25 excessively large because of the structure of the elevator. Therefore, as shown in FIG. 3, the substrate 28 of the voice synthesizer 1 is attached to the bottom cover of the speaker case 25. Reduce the size. In this case, since the magnet of the speaker 25 has a thickness of about 15 mm, a short component 27 is laid out at the board position where the magnet is located, and the normal IC 26 is arranged at other places.
Since it is difficult to directly mount the board 28 of the voice synthesizer 1 on the back plate 3c of the operation panel 3, the board 2
An insulating plate 29 such as a bakelite is arranged and attached to the back of 8. Further, as the material of the speaker case 25 itself, it is appropriate to select a material having a relatively low density such as ABS resin instead of metal. As shown in FIG. 4, an output hole 30 is formed on the front surface of the spice case 25 so that sound from the speaker 9 can be easily output. This output hole 30 is generally about 10% of the speaker area.

On the intercom 8 side, the front surface of the intercom speaker 10 and the front panel 3a of the operation panel 3 are provided so that the sound output from the voice guidance speaker 9 located behind the interphone 8 can easily enter the elevator car through the front panel 3a. A gap 31 of about 2 to 3 mm is provided between the mounting surface and the mounting surface. The formation of the gap 31 can be realized by interposing a spacer such as a rubber ring around the speaker 10.

As described above, in the elevator acoustic apparatus of this embodiment, the guide speaker 9 is installed at a position away from the surface plate 3a of the operation panel 3, but the speaker case 25
Since the sound guide is closed, the sound quality is not deteriorated, and the sound guide announcement output from the sound guide speaker 9 can be heard with good sound quality. Further, since the voice synthesizing device 1 is housed in the speaker case 25 together with the voice guiding speaker 9, a twisted pair line for serial transmission and a power line as a general electric wire are provided between the speaker control device installed in the elevator machine room. Can only be connected,
Wiring of the transmission system is simplified.

In the case of this embodiment, even when the voice guidance announcement is output from the voice guidance speaker 9 when the intercom 8 is in use in an emergency, this speaker 9
Is located at a position behind the intercom 8, the voice switch 24
There is no risk of adversely affecting the intercom and the intercom call is not disturbed.

The invention of claim 4 is not limited to the above embodiment, and includes a case where the voice guidance speaker is not housed in the speaker case but is arranged at the rear position of the intercom as it is. The invention of claim 5 is not limited to the above embodiment, and includes a case where the voice synthesizer is provided in the elevator control device side without being housed in the speaker case.

Further, according to the third aspect of the invention, the voice synthesizer is housed in the speaker case of the voice guidance speaker having the structure as shown in FIG. 3, and is attached to the inclined portion of the front panel of the operation panel. It can also be.

[0043]

According to the first aspect of the present invention, an intercom speaker and a microphone are installed on the operation panel surface plate, and a voice guidance speaker is installed on the operation panel at a position that does not affect the directivity range of the microphone. Therefore, even if there is a guidance announcement while using the intercom, the voice of the guidance announcement is not input at a high level to the microphone, and the intercom function in an emergency without adversely affecting the function of the intercom is Does not inhibit.

According to the second aspect of the present invention, since the voice guidance speaker is housed in the speaker case and installed on the operation panel surface plate, the voice output of the guidance announcement can be improved.

According to the third aspect of the present invention, since the voice guidance speaker is housed in the speaker case together with the voice synthesis unit for synthesizing the guidance voice to be output thereto, the synthesized voice output to the voice guidance speaker is the same. The signal can be provided from the voice synthesis unit in the speaker case, and the number of signal lines between the speaker control device and the elevator control device installed in the machine room can be reduced.

According to the fourth aspect of the present invention, the speaker and microphone of the intercom are installed on the operation panel surface plate, and the speaker for voice guidance is installed on the operation panel rear plate at a position behind the interphone. Even if the voice guidance announcement is output from the voice guidance speaker during the use of the emergency intercom, the guidance voice does not sneak into the microphone and hinders the function of the intercom.

According to the fifth aspect of the present invention, since the voice guidance speaker is housed in the speaker case and installed on the back panel of the operation panel, the sound quality of the voice guidance announcement can be improved.

According to the sixth aspect of the present invention, since the guide speaker is housed in the speaker case together with the voice synthesizing unit for synthesizing the guide voice to be output to the speaker, the synthesized voice to be output to the voice guide speaker is the same. The signal can be provided from the voice synthesizing unit in the case, and the number of signal lines to the elevator control device installed in the machine room can be reduced.

According to the seventh aspect of the present invention, since the speaker of the intercom is mounted on the operation panel surface plate with a predetermined gap therebetween, the output of the voice guidance speaker is expressed by the gap between the interphone speaker and the surface plate. It is possible to output to the outside through the face plate, so that the voice of the guidance announcement can be easily heard.

[Brief description of the drawings]

FIG. 1 is a sectional view of a common embodiment of the first and second aspects of the present invention.

FIG. 2 is a sectional view of a common embodiment of the inventions of claims 4 to 7;

FIG. 3 is a cross-sectional view of a speaker case accommodating a voice guidance speaker used in the embodiment.

FIG. 4 is a front view of a speaker case accommodating a voice guidance speaker used in the embodiment.

FIG. 5 is a front view showing an attached state of an operation panel in a general elevator car.

FIG. 6 is a circuit block diagram of a general speech synthesizer.

FIG. 7 is an operation explanatory diagram of a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 3 operation panel 3a surface plate 3b inclined portion 3c back plate 8 intercom 9 audio guidance speaker 10 intercom speaker 12 intercom microphone 25 speaker case 26 IC 27 circuit component 28 substrate 29 insulating plate 30 sound output hole 31 void

Claims (7)

(57) [Claims] 1. An audio system for an elevator in which a speaker and an intercom facility for giving an announcement to a user of an elevator by voice are installed in an operation panel of the elevator car, wherein a speaker and a microphone of the interphone are installed on a surface plate of the operation panel. An audio device for an elevator, wherein the voice guidance speaker is installed at a position on the operation panel that does not affect the directivity range of the microphone. 2. The elevator audio apparatus according to claim 1, wherein said voice guidance speaker is housed in a speaker case and installed on said operation panel surface plate. 3. The elevator sound apparatus according to claim 2, wherein the speaker for voice guidance is housed in the speaker case together with a voice synthesizer for synthesizing a guidance voice to be output to the speaker. apparatus. 4. An audio system for an elevator in which a speaker and an intercom facility for giving a guidance announcement to an elevator user by voice are installed in an operation panel of the elevator car, wherein a speaker and a microphone of the intercom are installed on the operation panel surface plate. An audio device for an elevator, wherein a speaker for voice guidance is provided on the rear panel of the operation panel at a position behind the interphone. 5. The acoustic device for an elevator according to claim 4, wherein the speaker for voice guidance is housed in a speaker case and installed on the back panel of the operation panel. 6. The elevator audio apparatus according to claim 5, wherein the speaker speaker is housed in the speaker case together with a voice synthesis unit that synthesizes a guidance voice to be output to the guidance speaker. . 7. The sound device for an elevator according to claim 4, wherein a speaker of the intercom is mounted on a surface plate of the operation panel via a predetermined gap.