JP2001341952A - Elevator information transmission system and information transmission device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator information transmission system and an information processing device superior in convenience in use for many people. SOLUTION: A slave unit 1 has an antenna 3, a camera 5, a loudspeaker 6, a microphone 7 and a display part 8. A master unit 2 has an antenna 4, a display part 9, a loudspeaker 10, a microphone 11, a camera 12 and an operation part 13. The slave unit 1 is arranged in a car of an elevator, and the master unit 2 is arranged in a device existing outside the car of the elevator and monitoring the inside of the elevator car. The antenna 3 and the antenna 4 are used between the slave unit 1 and the master unit 2 when transmitting and receiving information on an image and voice.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator information transmission system and an information transmission apparatus, and more particularly to an elevator ladder, and a monitoring device which is installed at a location remote from the elevator ladder and monitors the elevator ladder. TECHNICAL FIELD The present invention relates to an elevator information transmission system and an information transmission device for transmitting and receiving information between devices.

[0002]

2. Description of the Related Art Conventionally, elevator information transmission for transmitting and receiving information between an elevator car and a monitoring device installed at a place away from the elevator car for security and security in the elevator car. There was a system. In the conventional system, information is exchanged by voice between the inside of the elevator cage and the monitoring device via an intercom or the like. Also, JP-A-11-16
According to the technology disclosed in Japanese Patent No. 067, in addition to exchanging information with a monitoring device by voice, there is a technology that can record an image in an elevator car and reproduce the video in the elevator car.

[0003]

However, in the conventional system, since information was exchanged by voice, it was difficult for a hearing-impaired person or a language-impaired person to use the system easily.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an elevator information transmission system and an information transmission apparatus which are easy to use for many people.

[0005]

An elevator information transmission system according to one aspect of the present invention transmits and receives information between an elevator cab and a monitoring device installed at a location remote from the elevator cab. An elevator information transmission system for performing, in the monitoring device, a monitoring device-side image display means for displaying an image, a car interior photographing means for photographing an image in the elevator car, And a monitor image information transmitting means for transmitting image information based on an image photographed by the photographing means to the monitoring apparatus side image display means.

According to the present invention, an image in the elevator car can be viewed on the monitoring device.

Therefore, the passenger in the elevator cage can send some information to the monitoring device without sending the information by voice. That is, even a passenger who cannot easily send information by voice can easily send information to the monitoring device. From this, it is possible to make the elevator information transmission system easy to use for many people, including passengers who have difficulty sending information by voice.

[0008] An elevator information transmission system according to another aspect of the present invention provides an elevator for transmitting and receiving information between an elevator car and a monitoring device installed at a location remote from the elevator car. In the information transmission system, in the elevator car, a car image display means for displaying an image, a monitor apparatus photographing means for photographing an image in the monitoring apparatus, and an image taken by the monitor apparatus photographing means. And a monitoring device-side image information transmitting means for transmitting image information based on the image to the in-cage image display means.

According to the present invention, an image transmitted from the monitoring device can be viewed in the elevator car.

[0010] Therefore, the passenger in the elevator cage can obtain information from the monitoring device in a mode other than the voice. That is, even a passenger who cannot easily obtain information by voice can easily obtain information from the monitoring device. From this, it is possible to make the elevator information transmission system easy to use for many people, including passengers who have difficulty obtaining information by voice.

In the elevator information transmission system according to the present invention, in the monitoring device, the monitoring device-side image display means for displaying an image, and the in-car image capturing means for taking an image of the inside of the elevator car. It is preferable to further include a cage image information transmitting unit that transmits image information based on an image photographed by the cage interior photographing unit to the monitoring device side image display unit.

[0012] Thus, in the elevator information transmission system, image information can be exchanged bidirectionally between the inside of the elevator car and the monitoring device.

[0013] In the elevator information transmission system according to the present invention, it is preferable that the monitoring device further includes a car-in-car view control means for controlling a field of view taken by the car-in-car photographing means.

Thus, the operator of the monitoring apparatus can obtain image information of a desired portion in the basket while staying away from the basket.

Further, the elevator information transmission system according to the present invention comprises: an in-car image information creating means for creating image information based on an image taken by the in-car image capturing means; A monitoring device-side image information creating unit that creates image information based on an image captured by the means, wherein the in-riding image information creating unit and the monitoring device-side image information creating unit are compressed in a predetermined format. It is preferable to create the obtained image information.

This makes it possible to relatively reduce the hardware scale required for real-time compression processing in the in-riding image information creating means and the monitoring apparatus-side image information creating means.

In the elevator information transmission system according to the present invention, the predetermined format is preferably a JPEG system.

As a result, real-time image communication can be performed between the elevator car and the monitoring device.

The elevator information transmission system according to the present invention may further comprise a monitor-side receiver that outputs sound in the monitor, a receiver in a cage that outputs sound in the elevator, and a monitor in the cage. A monitor-side transmitter to which a voice is input, a cage-side transmitter to which a voice is input in the elevator cab, and a voice input to the monitor-side transmitter by the cab-in-room receiver It is preferable to further include a voice transmission / reception means for outputting the voice input to the in-cage transmitter and outputting the voice input to the monitoring device-side receiver.

Thus, in the elevator information transmission system, passengers in the elevator cab can transmit and receive information to and from the monitoring device not only by images but also by voice.

Further, the elevator information transmission system according to the present invention further includes a voice processing means for performing a process for preventing howling and echo from the sound output from the monitoring device side handset and the car interior handset. Is preferred.

Thus, in the elevator car and the monitoring device, it is possible to suppress the occurrence of howling by the transmitter and the receiver. Therefore, transmission and reception can be performed simultaneously in the elevator car and the monitoring device.

It is preferable that the elevator information transmission system according to the present invention further includes an information input means capable of inputting information to be displayed on the in-car image display means on the monitoring device side.

[0024] Thus, in addition to the video taken by the monitoring device, various images such as advertisement images can be displayed on the image display means in the cage.

An information transmission apparatus according to another aspect of the present invention is an information transmission apparatus installed in an elevator cab, wherein image information sent from a monitoring apparatus installed in a place distant from the elevator cab. It is characterized by including an in-cage image display means capable of displaying an image based on the image.

According to the present invention, an image sent from the monitoring device can be viewed in the elevator car.

Therefore, the passenger in the elevator cab can obtain information from the monitoring device located at a place distant from the elevator cab in a mode other than voice. That is, even a passenger who has difficulty in obtaining information by voice can easily obtain information from the monitoring device. From this, the information transmission device, including passengers who are difficult to obtain information by voice,
It can be easy to use for many people.

An information transmission apparatus according to still another aspect of the present invention is an information transmission apparatus installed at a position distant from an elevator cab, wherein an image based on image information sent from the elevator cab is provided. It is characterized by including a monitor-side image display means capable of displaying.

According to the present invention, an image in the elevator cab can be viewed on the monitoring device at a position away from the elevator cab.

Therefore, the passenger in the elevator cage can send some information to the monitoring device without sending information by voice. That is, even a passenger who cannot easily send information by voice can easily send information to the monitoring device. From this, the information transmission device can be made easy to use for many people, including passengers who have difficulty transmitting information by voice.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An elevator information transmission system according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing main devices constituting an elevator information transmission system, and FIG. 1 (a) shows devices installed in an elevator cage in the elevator information transmission system. FIG. 3 is a front view of a slave unit. FIG. 1B is a front view of a master unit installed at a monitoring center for monitoring the operation of the elevator, which is installed at a position away from the elevator cage in the elevator information transmission system.

Referring to FIG. 1A, the slave unit 1 includes an antenna 3, a camera 5, a speaker 6, a microphone 7, and a display unit 8. 1B, the master unit 2 includes an antenna 4, a display unit 9, a speaker 10, a microphone 11, a camera 12, and an operation unit 13.
It has.

The antennas 3 and 4 are used when information about images and sounds is transmitted and received between the slave unit 1 and the master unit 2.

In the elevator cage, the camera 5 captures an image, and the microphone 7 collects sound. Further, in the elevator cage, an image sent from the master unit 2 is displayed on the display unit 9,
The sound transmitted from the master unit 2 is output by the speaker 10.

FIG. 2 shows a block diagram of the slave unit 1. With reference to FIGS. 1A and 2, in the slave unit 1, an image captured by the camera 5 is input to a video signal processing circuit 14,
In step 4, the data is converted into image data. Image data compression /
The expansion circuit 15 compresses the image data together with the image data memory 16.

The compressed image data is sent to the wireless communication unit 18 by the wireless communication control circuit 17 and transmitted from the antenna 3 to the antenna 4 (see FIG. 1B).

The sound (voice signal) collected by the microphone 7 is
The audio signal is amplified by the microphone amplifier 19 and converted into audio data compressed by the audio signal compression / expansion circuit 20. The voice data is sent to the wireless communication unit 18 by the wireless communication control circuit 17 and transmitted from the antenna 3 to the antenna 4.

The image data received from the master unit 2 at the antenna 3 is sent to the image signal compression / expansion circuit 15 by the wireless communication unit 18 and the wireless communication control circuit 17. Then, the image data compression / decompression circuit 15
The image data is expanded while using the image data memory 16 together. The expanded image data is converted into a video signal by the video signal processing circuit 14 and displayed on the display unit 8.

The audio data received from the master unit 2 by the antenna 3 is sent to the audio signal compression / expansion circuit 20 by the radio communication unit 18 and the radio communication control circuit 17, expanded, and converted into an audio signal. The audio signal is amplified by the audio amplifier 21 and output from the speaker 6.

The audio data processing circuit 22 performs a process for preventing howling and echo due to acoustic coupling between the speaker 6 and the microphone 7. More specifically, the audio data processing circuit 22 includes an echo canceller and an echo compressor, which cancel echoes and perform output level compression processing. Thereby, when the audio data processed by the audio data processing circuit 22 is output from the speaker 6, howling and echo can be prevented. Therefore, in the slave unit 1, transmission and reception can be performed simultaneously.

The system control circuit 24 described above comprises:
The processing of image and audio data in the slave unit 1 is controlled while using the system memory 25 together.

FIG. 3 is a block diagram of the master unit 2. In master unit 2, slave unit 1
The image data received from the image data compression / expansion circuit 2 by the wireless communication unit 26 and the wireless communication control circuit 27.
8 The image data compression / expansion circuit 28 expands the image data while using the image data memory 29 together. The expanded image data is supplied to the video signal processing circuit 30.
Is converted into a video signal, and is displayed on the display unit 9.

The audio data received from the slave unit 1 is sent to the audio signal data compression / expansion circuit 31 by the wireless communication unit 26 and the wireless communication control circuit 27. The audio data is expanded by the audio data compression / expansion circuit 31. The expanded audio data is amplified by the audio amplifier 32 and output from the speaker 10.

Further, a person operating the master unit 2 is photographed by the camera 12. The video signal created by shooting is converted into image data in the video signal processing circuit 30. The image data compression / decompression circuit 28
The converted image data is stored in an image data memory 29.
While compressing. The compressed image data is sent to the wireless communication unit 26 by the wireless communication control circuit 27 and then transmitted from the antenna 4.

The audio signal input from the microphone 11 is amplified by the microphone amplifier 33 and converted into audio data by the audio signal compression / expansion circuit 31. The converted audio data is sent to the wireless communication unit 26 by the wireless communication control circuit 27 and transmitted from the antenna 4. The audio data processing circuit 34 includes the speaker 10 and the microphone 1
(1) A process for preventing howling and echo due to acoustic coupling is performed. More specifically, the audio data processing circuit 34 includes an echo canceller and an echo compressor, which cancel echoes and perform output level compression processing. Thereby, when the audio data processed by the audio data processing circuit 34 is output from the speaker 10, howling and echo can be prevented. Therefore, in the master unit 2, transmission and reception can be performed simultaneously.

The master unit 2 has an input detection circuit 35 for controlling the operation of the camera 5 in the slave unit 1 and the image quality of the captured image. Further, the master unit 2 operates the operation unit 1 for inputting control contents such as the operation of the camera 5 to the input detection circuit 35.
3 is provided. By controlling the operation unit 13, the operator of the master unit 2 can control the operation of the camera 5 and the image quality of a captured image via the input detection circuit 35.

More specifically, the operator inputs desired control contents for the camera 5 to the operation unit 13 as a result of viewing the image displayed on the display unit 9. Thus, the control content is input from the operation unit 13 to the input detection circuit 35. The input control content is transmitted from the antenna 4 to the slave unit 1 via the wireless communication control circuit 27 and the wireless communication unit 26. On the slave unit 1 side, the system control circuit 24 sends the received control content to the camera control unit 23, and the camera control unit 23
In accordance with the contents of the control, the camera 5 executes control such as pan, tilt, and zoom. Although illustration is omitted, the camera 5 includes means for moving the field of view of the camera 5 in the horizontal direction or the vertical direction, and means for changing the focal length of the camera 5. Driven by the unit 23.

The master unit 2 is provided with an information input device 36. The information input device 36 is connected to the video signal processing circuit 30 and the audio signal compression / decompression circuit 31. The information input device 36 is a device for inputting image information to be displayed on the display unit 8 of the slave unit 1 and audio information output to the speaker 6.
That is, the operator of the master unit 2 inputs image information and audio information to be presented to the passengers in the elevator cage to the information input device 36, so that the image information is displayed on the display unit 8, The audio information is output from the speaker 6. Thereby, for example, the display unit 8
Using the speaker 6 and the loudspeaker 6, it is possible to advertise to passengers in the elevator cab.

The system control circuit 38 executes the data processing in the master unit 2 described above by using signals from the system memory 38 and the operation unit 13 together.

FIG. 4 is a view showing a state in which the slave unit 1 shown in FIG. 1A is mounted in the elevator cage.

Referring to FIG. 4, elevator cage 10
In FIG. 0, a door 101 is located forward, and a camera 5, a speaker 6, a microphone 7, and a display unit 8 are mounted on the left side wall. Note that the slave unit 1 includes two cameras 5. One of them is provided on the left side wall in the basket 100, and the other is mounted on the ceiling in the basket 100. In addition, an antenna 3 is attached to the ceiling in the basket 100.

As described above, the slave unit 1 includes the two cameras 5. Then, the operator of the master unit 2 can also input information about which of the two cameras 5 the image taken by the two cameras 5 displays on the display unit 9 to the information input device 36. . The information is transmitted to the slave unit 1. In the slave unit 1, the system control circuit 24 causes the camera control unit 23 to input the video captured by one of the two cameras 5 to the video signal processing circuit 14 according to the information.

The operation unit 13 includes speakers 6, 10
The switch includes a switch for preventing howling and a switch for preventing echo from being output from the voice. The operator of the master unit 2 can operate the switches according to the sound output from the speakers 6 and 10 to determine whether or not a process for preventing howling and echo is required. And slave unit 1
The system control circuit 24 determines whether or not to execute the processing in the audio data processing circuit 22 according to the operation mode of the switch. Further, the system control circuit 37 of the master unit 2 determines whether or not to execute the processing in the audio data processing circuit 34 according to the operation mode of the switch.

Here, the processing contents of the system control circuit 24 and the system control circuit 37 when audio data is received by the antenna 3 or the antenna 4 will be described with reference to FIG.

First, in S1, the system control circuit 24 or the system control circuit 37 determines whether or not audio data has been received by the antenna 3 or the antenna 4. If it is determined that the audio data has been received, the process proceeds to S2.

Next, in S2, the system control circuit 24 or the system control circuit 37 executes a process to determine whether or not a switch for preventing howling is turned on in the operation unit 13, that is, a process for preventing howling. It is determined whether or not the setting has been made. When the switch is turned on and it is determined that the setting for executing the process for preventing howling is performed, in S3, the audio data processing circuit 22 or the audio data processing circuit 34 executes such a process. move on. On the other hand, if it is determined in S2 that the switch is not turned on,
Proceed to S4.

Next, in S4, the system control circuit 24 or the system control circuit 37 determines whether or not the switch for preventing the echo is turned on in the operation unit 13 (S4).
That is, it is determined whether or not it is set to execute processing for preventing echo. If the switch is turned on and it is determined that the processing for preventing the echo is set to be executed, in S5, the audio data processing circuit 22 or the audio data processing circuit 34 executes such processing, and in S6, move on. On the other hand, if it is determined in S4 that the switch is not turned on, the process directly proceeds to S6.

Next, in S6, the system control circuit 24 or the system control circuit 37 converts the received audio data or the audio data processed by the audio data processing circuit 22 or 34 into the audio signal compression / decompression circuit 20 or The audio signal compression / expansion circuit 31 decompresses the audio signal and converts it into an audio signal, and then proceeds to S7.

In S7, the system control circuit 24 or the system control circuit 37 determines whether
The sound is output from the speakers 6 and 10, and the process returns to S1.

In the present embodiment described above, the switch for performing the process for preventing the howling and the echo on the sound output from the speaker 6 is the switch 1
Although the operation unit 13 is provided at a position distant from 00, the operation unit 13 may be provided in the basket 100.

As described above, when the control content for the operation of the camera 5 is input to the operation unit 13, the system control circuit 37 transmits the control content to the slave unit 1.
Send to the side. When the slave unit 1 receives the control content, the system control circuit 24 causes the camera control unit 23 to control the operation of the camera 5 according to the control content. Here, FIG.
7 shows a flowchart of a process executed when the control content transmitted to the operation unit 13 for the operation of the camera 5 is transmitted to the slave unit 1 side. FIG. 7 shows a flowchart of a process executed by the system control circuit 24 when the control content for the operation of the camera 5 is received.

The display section 9 displays an image captured by one of the two cameras 5. The operation unit 13 is provided with a switch for switching the camera 5 that displays a captured image on the display unit 9 from one of the two cameras to the other.

The operation section 13 is provided with a pan switch for moving the field of view of the camera 5 in the horizontal direction, a tilt switch for moving the field of view in the vertical direction, and a zoom switch for moving the focal position of the camera 5. I have.

Then, the system control circuit 37 first
In S11, it is determined whether or not the above-mentioned changeover switch is turned on. If it is determined that the switch is turned on, the process proceeds to S12. If it is determined that the switch is not turned on, the process proceeds to S13. S1
In 2, the system control circuit 37 displays the captured image on the display unit 9.
Then, a camera switching operation control signal for switching the camera 5 to be displayed is generated, and the process proceeds to S19.

On the other hand, in S13, the system control circuit 37
Determines whether or not the above-described pan switch is turned on. If it is determined that the pan switch is turned on, the process proceeds to S14. If it is determined that the pan switch is not turned on, the process proceeds to S15. In S14,
The system control circuit 37 generates a pan operation control signal for moving the field of view of the camera 5 left and right, and proceeds to S19.

In S15, the system control circuit 37 determines whether or not the tilt switch is turned on,
If it is determined that the switch is turned on, the process proceeds to S16. If it is determined that the switch is not turned on, the process proceeds to S17. In S16, the system control circuit 37 generates a tilt operation control signal for moving the field of view of the camera 5 up and down, and proceeds to S19.

At S17, the system control circuit 37 determines whether or not the above-mentioned zoom switch is turned on.
When it is determined that the switch is on, the process proceeds to S18, and when it is determined that the switch is not on, the process returns to S11. In S18, the system control circuit 37 generates a zoom operation control signal for moving the focal position of the camera 5, and proceeds to S19.

In S19, the system control circuit 37 determines in S1
2. The signal created in S14, S16, or S18 is transmitted to the antenna 3 via the antenna 4, and the process ends.

On the other hand, at the antenna 3, S12, S14, S
The system control circuit 24 that has received the signal created in S16 or S18 executes a process as shown in FIG.

That is, first, in S21, S12, S1
4. After receiving the signal created in S16 or S18, in S22, the camera controller 23 drives the camera 5 based on the received signal, and the process ends.

On the other hand, as described above, the information input to the information input device 36 of the master unit 2 can be displayed on the display unit 8 of the slave unit 1 or output from the speaker 6. Here, as one example, the information input device 36
Next, a process executed by the system control circuit 37 when image information of an advertisement is input will be described with reference to FIG.

First, the system control circuit 37 executes S31
Then, it is determined whether or not an operation for turning on the advertisement mode is performed on the operation unit 13. If it is determined that it is turned on, the process proceeds to S32, and if it is determined that it is not turned on, the process proceeds to S36.

In S32, the system control circuit 37 sends the camera 1 from the master unit 2 to the slave unit 1.
The transmission of the information on the video 2 and the information on the sound of the microphone 11 is stopped, and the process proceeds to S33.

In S33, the system control circuit 37 causes the video signal processing circuit 30 to accept the output of information from the information input device 37, and proceeds to S34. As a result, image information to be displayed as an advertisement is output from the information input device 37 to the video signal processing circuit 30.

In S34, the system control circuit 37 determines whether or not the output of the advertisement information input to the video signal processing circuit 30 to the slave unit 1 has been started. If it is determined that the output has been started, the process proceeds to S35. .

In S35, it is determined whether or not the output of the advertisement information determined to have started in S34 has been completed. If it is determined that the process has been completed, the process returns to S31.

On the other hand, if it is determined in S31 that the operation for turning on the advertisement mode has not been performed on the operation unit 13, the system control circuit 37 sends the master unit 2 to the slave unit 1 from the master unit 2 to the slave unit 1 in S36. The information about the video and the information about the sound of the microphone 11 are transmitted, and the process proceeds to S37.

In S37, the video signal processing circuit 30 is set not to accept the output of information from the information input device 37, and the process returns to S31.

As described above, if the operation of turning on the advertisement mode is performed on the operation unit 13,
The advertising information output from the information input device 37 is displayed on the display unit 8.
Will be displayed. If the advertisement information output from the information input device 37 includes audio information, the speaker 6 also outputs audio according to the audio information.

In the elevator information transmission system of the present embodiment described above, the inside of the elevator cage 100 can be monitored in real time at a place different from the elevator cage. Therefore, the convenience of the elevator information transmission system can be improved as compared with the conventional system.

Further, in this embodiment, when an abnormality such as a disaster occurs, an image can be sent to the passenger in the elevator cage 100 from the monitoring center where the master unit 2 is installed. Thus, it is possible to easily give an instruction or a warning to a hearing-impaired person or a language-impaired person.

Further, in this embodiment, when an abnormality such as a disaster occurs, the monitoring center in which the master unit 2 is installed issues a voice warning to the passengers in the elevator cab 100, Can be recognized by voice. Further, since a process for preventing howling and acoustic echo is performed on the sound output from the speaker, hands-free communication can be performed.

In the present embodiment, a plurality of cameras 5
Switching between those displaying images on the display unit 9 and adjusting the pan, tilt, and zoom of the camera 5 can be executed by appropriately operating the operation unit 13 installed away from the elevator car 100.

In the embodiment described above,
The display unit 8, the video signal processing circuit 14, and the image data compression / decompression circuit 15 allow the elevator
The image display means in a cage which displays an image is comprised.

The camera 12 constitutes a monitor-side photographing means for photographing an image in the monitor.

Further, the video signal processing circuit 28 and the image data compression / expansion circuit 30 create image information to be transmitted to the in-cage image display means based on the image captured by the monitoring device-side imaging means. The device-side image information creating means is configured.

Further, the radio signal control circuit 27, the radio communication unit 26, and the antenna 4 transfer the image information created by the monitoring device-side image information creation unit based on the image captured by the monitoring device-side imaging unit. The monitoring device-side image information transmitting means for transmitting the image data to the in-cage image display means is configured.

The display unit 9, the video signal processing circuit 28, and the image data compression / expansion circuit 30 constitute a monitoring device-side image display means for displaying an image based on the received image information in the monitoring device. .

Further, the camera 5 constitutes a car interior photographing means for photographing an image inside the elevator car.

Further, the video signal processing circuit 14 and the image data compression / expansion circuit 15 constitute an in-cage image information creating means for creating image information based on an image taken by the in-cage image capturing means. .

Then, the radio signal control circuit 17, the radio communication unit 18, and the antenna 3 transmit the image information created by the in-car image information creating means to the monitor-side image display means for transmitting the image information in the car cage. Is configured.

Further, the camera control section 23 constitutes an in-cage view control means for controlling the view taken by the in-cage image pickup means in the monitoring device.

The image data compression / expansion circuit 15 and the image data compression / expansion circuit 20 are JPEG (Joint
It is preferable to create image information compressed by the Photographic Coding Experts Group) method. This makes it possible to perform processing in units of frames, thereby facilitating image processing, and thus enabling real-time image digitization.

The speaker 10 constitutes a monitor-side receiver for outputting sound in the monitor, and the microphone 11 constitutes a monitor-side transmitter in which sound is input in the monitor.

The speaker 6 constitutes an in-car receiver for outputting sound in the elevator car, and the microphone 7 constitutes an in-car transmitter for inputting sound in the elevator car. I have.

Then, the audio data processing circuit 22, the audio signal compression / expansion circuit 20, the microphone amplifier 19 and the audio amplifier 21 of the slave unit 1, the audio data processing circuit 34, the audio signal compression / expansion circuit 31 of the master unit 2 The microphone amplifier 33 and the audio amplifier 32 cause the sound input to the monitoring device side transmitter to be output by the in-carriage receiver, and the sound input to the monitoring device side transmitter to the monitoring device side. A voice transmission / reception unit configured to output the signal by the receiver is configured.

Among them, the voice data processing circuit 22 and the voice data processing circuit 34 constitute a voice processing means for performing a process for preventing howling and echo output from the receiver on the monitor side and the receiver in the cage.

[0099] The information input means 36 constitutes an information input means capable of inputting information to be displayed on the in-cage image display means on the monitoring device side. This allows the passengers in the elevator cab 100 to be informed of the notification contents such as advertisements using the speaker 6 and the display unit 8. The information input means may be, for example, a video deck, a DVD driver, or the like.

The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

[0101]

According to the present invention described above, since the image in the elevator cab can be viewed in the monitoring device, the passenger in the elevator cab can send the information to the monitoring device without sending information by voice. Any information can be sent. That is, even a passenger who cannot easily send information by voice can easily send information to the monitoring device. This makes it possible to make the elevator information transmission system easy to use for many people, including passengers who have difficulty transmitting information by voice.

Further, according to the present invention, an image sent from the monitoring device can be viewed inside the elevator car.

Therefore, passengers in the elevator cab can obtain information from the monitoring device in a mode other than voice. That is, even a passenger who cannot easily obtain information by voice can easily obtain information from the monitoring device. From this, it is possible to make the elevator information transmission system easy to use for many people, including passengers who have difficulty obtaining information by voice.

Further, according to the present invention, image information can be exchanged bidirectionally between the inside of the elevator car and the monitoring device, and the usability can be further improved.

Further, according to the present invention, the operator of the monitoring apparatus operates the in-car view control means, so that the operator can view the image of a desired portion in the car while staying away from the elevator car. Information can be obtained.

Further, according to the present invention, since the image information is formed by being compressed, the hardware scale required for the real-time compression processing in the in-car image information creating means and the monitoring apparatus-side image information creating means is reduced. It can be relatively small.

Also, according to the present invention, the image information is
Since compression is performed in the G format, real-time image communication can be performed between the elevator cab and the monitoring device.

Further, according to the present invention, in the elevator information transmission system, the passengers in the elevator car can transmit and receive information to and from the monitoring device not only by images but also by voice.

Further, according to the present invention, it is possible to suppress howling caused by the transmitter and the receiver in the elevator cab and in the monitoring device. Therefore, transmission and reception can be performed simultaneously in the elevator car and the monitoring device.

Further, according to the present invention, the information transmission device installed in the elevator cage displays various images, such as images taken by the monitoring device and advertisement images, on the image display means in the cage. Can be done.

[0111] Therefore, the passenger in the elevator cab can obtain information from a monitoring device located at a place away from the elevator cab in a mode other than voice. That is, even a passenger who has difficulty in obtaining information by voice can easily obtain information from the monitoring device. From this, the information transmission device, including passengers who are difficult to obtain information by voice,
It can be easy to use for many people.

Further, according to the present invention, the image in the elevator cab can be viewed by the monitoring device at a position distant from the elevator cab by the information transmission device installed at a location distant from the elevator cab. .

Therefore, the passenger in the elevator cage can send some information to the monitoring device without sending information by voice. That is, even a passenger who cannot easily send information by voice can easily send information to the monitoring device. From this, the information transmission device can be made easy to use for many people, including passengers who have difficulty transmitting information by voice.

[Brief description of the drawings]

FIG. 1 is a diagram showing main devices constituting an elevator information transmission system according to an embodiment of the present invention.

FIG. 2 is a block diagram of a slave unit of FIG. 1;

FIG. 3 is a block diagram of the master unit shown in FIG. 2;

FIG. 4 is a diagram showing a state where the slave unit of FIG. 1 is installed in an elevator cage.

5 is a diagram showing processing contents of a system control circuit of the slave unit of FIG. 1 and a system control circuit of the master unit of FIG. 1 when audio data is received by the antenna;

6 is executed when the system control circuit of the master unit in FIG. 1 transmits the control content for the operation of the camera of the slave unit in FIG. 1 input to the operation unit to the slave unit in FIG. 1; It is a flowchart of a process.

FIG. 7 is a flowchart of a process executed by a system control circuit of the slave unit of FIG. 1 when control contents for the operation of the camera of the slave unit of FIG. 1 are received;

FIG. 8 shows an information input device of the master unit shown in FIG.
4 is a flowchart of a process executed by a system control circuit of the master unit in FIG. 1 when image information of an advertisement is input.

[Explanation of symbols]

1 slave unit, 2 master units, 3, 4
Antenna, 5,12 camera, 6,10 speaker,
7, 11 microphone, 8, 9 display unit, 13 operation unit, 1
4, 30 video signal processing unit, 15, 28 image data compression / expansion circuit, 17, 27 wireless communication control circuit, 18,
26 wireless communication unit, 19, 33 microphone amplifier, 20,
31 audio signal compression / expansion circuit, 21, 32 audio amplifier, 22, 34 audio data processing circuit, 23 camera control unit, 24, 37 system control circuit.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Naoki Tani 22-22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka F-term (reference) 3F303 DB11 EA01 EA04 EA09 FA01 FA07 FA14

Claims (11)

[Claims] 1. An elevator information transmission system for transmitting and receiving information between an elevator car and a monitoring device installed at a location distant from the elevator car, wherein the monitoring device includes an image. A monitor-side image display means for displaying an image of the inside of the elevator car, and a photographing means in the car cage for photographing an image of the inside of the elevator car; and displaying image information based on the image taken by the photographing means in the car cage on the monitor apparatus side. An elevator information transmission system, comprising: a cage image information transmitting means for transmitting the information to the means. 2. An elevator information transmission system for transmitting and receiving information between an elevator ladder and a monitoring device installed at a location distant from the elevator ladder, wherein the elevator ladder has: Image display means for displaying an image in a cage, image capturing means in a monitoring device for capturing an image in the monitoring device, image information in the cage based on an image captured by the image capturing means in the monitoring device. An elevator information transmission system, comprising: a monitoring device-side image information transmitting unit that transmits the image information to the monitoring unit. 3. In the monitoring device, a monitoring device-side image display means for displaying an image, an in-car photographing means for photographing an image in the elevator car, and an image photographed by the in-car photographing means. The elevator information transmission system according to claim 2, further comprising: an in-cage image information transmission unit that transmits image information based on the information to the monitoring device-side image display unit. 4. The elevator information transmission system according to claim 1, wherein the monitoring device further includes a cage inside view control unit that controls a view taken by the inside cage image capturing unit. 5. An in-car image information creating means for creating image information based on an image taken by the in-car image taking means, and image information based on an image taken by the monitoring device-side photographing means. 4. A monitoring device-side image information creating unit that creates a compressed image information, wherein the in-riding image information creating unit and the monitoring device-side image information creating unit create compressed image information in a predetermined format. Alternatively, the elevator information transmission system according to claim 4. 6. The predetermined format is JPEG (Joint Ph.D.).
The elevator information transmission system according to claim 5, wherein the elevator information transmission system is an otographic CodingExperts Group) system. 7. A monitor-side receiver that outputs sound in the monitoring device, a cab-in-cell receiver that outputs sound in the elevator cab, and a monitor-side transmitter that receives voice in the monitor. An in-cage transmitter to which sound is input in the elevator car, and a sound input to the monitoring device-side transmitter being output by the in-car receiver and the in-car transmission. The elevator information transmission system according to any one of claims 1 to 6, further comprising a voice transmission / reception unit that causes a voice input to a speaker to be output by the monitoring device side receiver. 8. The elevator information transmission system according to claim 7, further comprising voice processing means for performing a process for preventing howling and echo on sounds output from the monitoring device-side receiver and the in-carriage receiver. . 9. The elevator information transmission according to claim 2, further comprising an information input unit that can input information to be displayed on the image display unit inside the car on the monitoring device side. system. 10. An information transmission device installed in an elevator cab, which is capable of displaying an image based on image information sent from a monitoring device installed in a place distant from the elevator cab. An information transmission device including means. 11. An information transmission device installed at a location distant from an elevator car, comprising: a monitor-side image display means capable of displaying an image based on image information sent from the elevator car. apparatus.