CN210795404U - Intercom device of elevator car, operation panel of elevator car and elevator - Google Patents

Intercom device of elevator car, operation panel of elevator car and elevator Download PDF

Info

Publication number
CN210795404U
CN210795404U CN201921248803.3U CN201921248803U CN210795404U CN 210795404 U CN210795404 U CN 210795404U CN 201921248803 U CN201921248803 U CN 201921248803U CN 210795404 U CN210795404 U CN 210795404U
Authority
CN
China
Prior art keywords
signal
display screen
emergency call
display
control panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921248803.3U
Other languages
Chinese (zh)
Inventor
陈迎燕
王小红
赵勇
陆品
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kone Elevators Co Ltd
Kone Corp
Original Assignee
Kone Elevators Co Ltd
Kone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kone Elevators Co Ltd, Kone Corp filed Critical Kone Elevators Co Ltd
Priority to CN201921248803.3U priority Critical patent/CN210795404U/en
Application granted granted Critical
Publication of CN210795404U publication Critical patent/CN210795404U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Indicating And Signalling Devices For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

An intercom device of an elevator car, an operation panel and an elevator. The elevator car is internally provided with an emergency call button, a display screen, a car operation control panel and a display screen control panel, the intercom device comprises a microcontroller, a first connector and a second connector, wherein the microcontroller is in signal connection with the emergency call button and the car operation control panel through the first connector, and is in signal connection with the display screen control panel through the second connector, and the microcontroller receives the talkback starting signal from the emergency call button through the first connector after the passenger presses the emergency call button or receives the talkback starting signal from the car operation control panel through the first connector after the elevator main machine or the elevator machine room extension calls the talkback device to start the talkback function, and sequentially transmitting the plurality of display signals to the display screen control board through the second connector, and the display screen control board sequentially displaying images corresponding to the plurality of display signals on the display screen in response to the plurality of display signals.

Description

Intercom device of elevator car, operation panel of elevator car and elevator
Technical Field
The utility model relates to an intercom of elevator car, elevator car's operating panel and the elevator that contains this operating panel.
Background
The intercom device of the elevator is used for realizing the communication between passengers in the elevator and the remote control center. After the passenger presses the emergency call button, the passenger may be anxious because information about the call situation is not obtained and the external situation cannot be known, resulting in failure to provide effective information after establishing a call with the remote control center. In addition, when the intercom device is called by the elevator main machine or the elevator machine room extension, the passengers in the elevator may not be able to provide effective information in time under the condition that the intercom device only provides a call. In these cases, quick and effective rescue soothing is often not achieved. The existing elevator car operation panel has small volume and does not have enough space to realize functions except the communication function.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims at providing an intercom of elevator car, elevator car's operating panel and the elevator that contains this operating panel, this intercom is through setting up extra connector for elevator car's operating panel can provide conversation function and display function simultaneously under the condition of emergency call, and the volume is less, simple structure, low cost and safe pleasing to the eye.
The utility model relates to an intercom device of an elevator car, an emergency call button, a display screen, a car operation control panel which is used for being in signal connection with an elevator main control device to control the operation of the elevator car and a display screen control panel which is used for sending instructions to the display screen to display images are arranged in the elevator car, the intercom device comprises a microcontroller, a first connector and a second connector, wherein the microcontroller is in signal connection with the emergency call button and the car operation control panel through the first connector and is in signal connection with the display screen control panel through the second connector, and wherein the microcontroller receives an intercom starting signal from the emergency call button through the first connector after a passenger presses the emergency call button or receives an intercom starting signal from the car operation control panel through the first connector to start an intercom function after an elevator host or an elevator machine room extension calls the intercom device, and sequentially transmitting the plurality of display signals to the display screen control board through the second connector, and the display screen control board sequentially displaying images corresponding to the plurality of display signals on the display screen in response to the plurality of display signals.
In one embodiment, the plurality of display signals includes an emergency call initiation signal, an emergency call connection signal, and an emergency call talk signal.
In one embodiment, the second connector includes a first interface, a second interface, a third interface, and a fourth interface,
the microcontroller transmits a first signal to the display screen control board through the first interface to serve as a reference signal;
after a passenger presses an emergency call button or after an elevator host or an extension set of an elevator machine room calls an intercom device, the microcontroller transmits a second signal to the display screen control panel through the second interface, and the display screen control panel controls the display screen to display an image corresponding to the emergency call starting signal after receiving the emergency call starting signal formed by the first signal and the second signal;
after a period of time, the microcontroller stops transmitting the second signal through the second interface and simultaneously transmits a third signal to the display screen control panel through the third interface, and the display screen control panel controls the display screen to display an image corresponding to the emergency call connection signal after receiving the emergency call connection signal formed by the first signal and the third signal;
after the microcontroller receives a call connection signal from the car operation control panel, the microcontroller stops transmitting a third signal through the third interface and simultaneously transmits a fourth signal to the display screen control panel through the fourth interface, and the display screen control panel controls the display screen to display an image corresponding to the emergency call signal after receiving the emergency call signal formed by the first signal and the fourth signal;
and after the microcontroller receives the call ending signal from the car operation control panel, the microcontroller stops transmitting the fourth signal through the fourth interface, and the display screen control panel controls the display screen to stop displaying the image related to the emergency call.
In one embodiment, the image corresponding to the emergency call communication signal includes information indicating that a communication is in progress and text prompt information, and the passenger can communicate with the outside through the intercom device according to the text prompt information.
The utility model discloses still relate to an elevator car's operating panel, this operating panel include as above intercom, emergency call button, display screen, car operation control panel and display screen control panel.
In one embodiment, the operation panel further comprises a signal conversion device, the second connector of the intercom device is in signal connection with the display screen control board through the signal conversion device, and the signal conversion device converts the signal from the second connector into a signal suitable for the display screen control board.
In one embodiment, the car operation control panel is in signal connection with the display screen control panel to control the display screen to display the floor information.
In one embodiment, the display screen is a touch display screen, when a passenger performs a touch operation on the display screen, the display screen transmits a floor signal to the elevator main control device through the display screen control panel and the car operation control panel, and the elevator main control device controls the operation of the elevator car in response to the floor signal.
In one embodiment, the car operation control panel is in signal connection with the display control panel by means of a signal conversion device which converts the signal from the car operation control panel into a signal suitable for the display control panel and converts the signal from the display control panel into a signal suitable for the car operation control panel.
In one embodiment, the display screen includes a first display area that displays floor information and a second display area that sequentially displays images corresponding to an emergency call start signal, an emergency call connection signal, and an emergency call talk signal when the elevator car is in an emergency call situation.
The utility model discloses still relate to an elevator, this elevator includes as above operating panel.
Drawings
The advantages and objects of the present invention will be better understood from the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the relationship of the various components. In the drawings:
fig. 1 is a side view of an embodiment of an intercom device of an elevator car of the present invention;
fig. 2 is a schematic plan view of an embodiment of the intercom device of the elevator car of the present invention;
fig. 3 is a schematic view of an embodiment of an operating panel of an elevator car of the present invention;
fig. 4 is a circuit connection block diagram of an embodiment of an operation panel of an elevator car according to the present invention.
Detailed Description
Various embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that, in the drawings, the same reference numerals are given to constituent parts having substantially the same or similar structures and functions, and repeated description thereof will be omitted. The terms "upper" and "lower" herein are used merely to describe relative positions of respective components, and do not limit the scope of the present invention, and "upper" may be "lower" without departing from the scope of the present invention, if not specifically stated. The description of "first" and its variants is merely for the purpose of distinguishing between the parts and does not limit the scope of the invention, which can be written as "second" and so on without departing from the scope of the invention.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof.
Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to fig. 1 to 4.
Fig. 1 and 2 show schematic views of the intercom device 1 of the elevator car of the present invention in different directions.
As shown in fig. 1, the intercom device 1 of an elevator car comprises a microcontroller (not shown in the figures) disposed in its casing, as well as a first connector 2 and a second connector 3. The interfaces of the first connector 2 and the second connector 3 are exposed outside the housing. The first connector and the second connector shown in fig. 1 are arranged side by side on the same side of the casing of the intercom device. The first connector and the second connector may also be arranged on different sides of the housing of the intercom device.
As shown in fig. 2, the intercom device 1 further includes an audio output device 4 and an audio input device 5. The audio output device 4 is, for example, a speaker, and the audio input device 5 is, for example, a microphone. In addition, the intercom device 1 also comprises fixing plug-ins 6 arranged at the two ends of the shell of the intercom device and used for fixing the intercom device in an operation panel of the elevator car. For example, the intercom can be screwed to the casing of the operating panel of the elevator car by passing screws through the notches in the fixing inserts.
Fig. 3 shows an interior view of an elevator car with an operating panel 100 opened according to an embodiment of the invention. The operation panel 100 includes an emergency call button 7, a display screen 8, a car operation control panel 9 for signal connection with an elevator main control device to control operation of an elevator car, a display screen control panel 10 for sending an instruction to the display screen to display an image, and the intercom device 1. In addition, the operation panel shown in fig. 3 further includes a signal conversion device 11.
The display screen 8 in fig. 3 is arranged on the housing of the operating panel and is, for example, a touch display screen, comprising a first display area 12 and a second display area 13, which are arranged side by side on the housing of the operating panel. The first display area 12 displays floor information for the passengers to make touch selections, for example, the current floor, the destination floor, the accessible floor, the elevator running direction, etc. are displayed in different colors. The second display area 13 can display clock information, or display pictures, etc. when the elevator is operating normally. The second display area 13 can display images relating to an emergency call situation when the elevator car is in an emergency call situation.
As shown in fig. 3, the intercom device 1 is disposed inside the casing of the operation panel, below the display screen 8, and the speaker and microphone of the intercom device are aligned with the corresponding holes on the casing. The emergency call button 7 is disposed below the intercom 1 and is aligned with a corresponding hole in the case so that the passenger can press the button to initiate an emergency call situation.
The car operating panel 9, the display panel 10 and the signal conversion device 11 are disposed in a cavity formed by the casing of the operating panel and the side wall of the elevator car. The car operation control panel 9 may be a programmable one-chip microcomputer. The display screen control board 10 may be an LED display screen control card, in which a memory is disposed, so as to send a corresponding display instruction to the LED display screen according to the received signal. The signal conversion device 11 is, for example, a level shifter.
Fig. 4 shows a block diagram of the electrical connections of the operating panel of the elevator car according to one embodiment of the invention. The positions of the various components shown in the figures are schematic and do not represent the actual positions of the various components in the operating panel.
The microcontroller of the intercom 1 is in signal connection with the emergency call button 7 and the car operating control panel 9 via the first connector 2. The emergency call button 7 is also in signal connection with the car operating control panel 9. For example, after the passenger presses the emergency call button 7, the microcontroller receives an intercom starting signal from the emergency call button through the first connector to start the intercom function, and after the call is connected, the passenger can communicate with the elevator main machine or the elevator machine room extension through the intercom device. When the elevator host or the elevator machine room extension calls the intercom device, the microcontroller receives an intercom starting signal from the car operation control panel 9 through the first connector to start the intercom function, and after the communication is connected, the passenger can also communicate with the elevator host or the elevator machine room extension through the intercom device. Further, the car operation control panel 9 supplies power to the intercom device 1 through the first connector.
Referring again to fig. 1, the first connector 2 has four interfaces, two of which (e.g., the left two interfaces) are for signal connection with the emergency call button 7 and the other two (e.g., the right two interfaces) are for signal connection with the car operation control panel 9.
In addition, the microcontroller is in signal connection with the signal conversion device 11 through the second connector 3, and is further in signal connection with the display screen control board 10. The signal conversion device 11 converts the signal from the second connector 3 into a signal suitable for the display screen control board 10. For example, the signal conversion device 11 transmits the converted signal to the display panel 10 through the RS232 interface. Here, the signal conversion device is required to convert the signal because the intercom device and the display screen control board have different signal standards or communication transmission protocols. However, according to practical circumstances, the signal conversion device is not necessary for the operation panel.
When the elevator is in an emergency call situation, that is, after the passenger presses the emergency call button or after the intercom is called by the elevator main machine or the elevator machine room extension, the microcontroller of the intercom 1 sequentially transmits a plurality of display signals to the display screen control board 10 through the second connector 3, and the display screen control board 10 makes the display screen 8 sequentially display images corresponding to the plurality of display signals respectively in response to the plurality of display signals. As shown in fig. 4, the plurality of display signals are transmitted to the signal conversion device 11 through the second connector 3, and are converted and transmitted to the display screen control board 10. The display screen control board 10 sends a corresponding display instruction to the display screen 8 in response to the plurality of display signals, and the display screen 8 displays a corresponding image according to the display instruction.
For example, the plurality of display signals include an emergency call start signal, an emergency call connection signal, and an emergency call talk signal.
Referring again to fig. 1, the second connector 3 includes a total of five interfaces, which are a first interface 31, a second interface 32, a third interface 33, a fourth interface 34, and a fifth interface 35, respectively, arranged in this order from left to right. The fifth interface 35 is an NC interface. In other embodiments, the second connector may comprise only four interfaces 31-34.
The microcontroller transmits a first signal to the signal conversion device 11 through the first interface 31, and further transmits the first signal to the display panel control board 10 as a reference signal. For example, the first signal is a high level dc signal.
After the passenger presses the emergency call button or after the intercom is called by the elevator main machine or the elevator machine room extension, the microcontroller transmits a second signal (for example, a low level signal) to the signal conversion device 11 through the second interface 32, and the second signal is transmitted to the display screen control panel 10 after being converted. At the display screen control panel, the first signal and the second signal form an emergency call initiation signal, for example, by a comparator. The display screen control board controls the second display area 13 to display an image corresponding to the emergency call start signal after receiving the emergency call start signal. An image corresponding to the emergency call initiation signal shows the passenger that an emergency call has been currently initiated to sooth the trapped passenger, such as an alarm bell icon.
After a period of time, for example one second later, the microcontroller stops transmitting the second signal through the second interface 32, and simultaneously transmits a third signal (for example, a low level signal) to the signal conversion device 11 through the third interface 33, and the third signal is transmitted to the display panel 10 after being converted. At the display panel, the first signal and the third signal form an emergency call connection signal, for example, by means of a comparator. The display screen control board controls the second display area 13 to display an image corresponding to the emergency call connection signal after receiving the emergency call connection signal. The image corresponding to the emergency call connection signal shows the passenger that the intercom device of the elevator car is in connection with the elevator main machine or the extension of the elevator machine room, such as the general control room, for example as a call waiting icon.
After the microcontroller receives the call-on signal from the car operation panel, the microcontroller stops transmitting the third signal through the third interface 33, and simultaneously transmits a fourth signal (e.g., a low level signal) to the signal conversion device 11 through the fourth interface 34, and the fourth signal is transmitted to the display panel 10 after being converted. At the display panel, the first signal and the fourth signal form an emergency call conversation signal, for example, through a comparator. The display screen control board controls the second display area 13 to display an image corresponding to the emergency call communication signal after receiving the emergency call communication signal. The image corresponding to the emergency call signal includes information indicating that the call is in progress to show the passenger that he is currently in call with the elevator main control room. In addition, the image corresponding to the emergency call communication signal includes text prompt information, and the passenger can communicate with the outside through the intercom device (i.e., the audio input device 5 of the intercom device 1) according to the text prompt information. The text prompt message may include, for example, a question "please describe your current status" and a plurality of answer options, such as "do someone injured", "do you get trapped in an elevator", "do elevator move", "do door is closed" and "several people are inside". The passengers provide information about the persons and equipment inside the elevator in accordance with the prompt information.
After the microcontroller receives the call end signal from the car operation control panel, the microcontroller stops transmitting the fourth signal through the fourth interface 34, and the second display area 13 stops displaying the image related to the emergency call under the control of the display screen control panel 10, and returns to the normal operation interface.
The above embodiment of the present invention adopts the second display area 13 to display the image related to the emergency call, but the present invention is not limited thereto, and the display screen can also no longer display the floor information after receiving the emergency call display start signal, only display the image related to the emergency call.
In other embodiments, the comparator may also be disposed in the signal conversion device, that is, the signal conversion device compares the signals from the second, third and fourth interfaces with the reference signal from the first interface to respectively obtain a plurality of display signals.
Further, the second, third, and fourth signals may be signals of the same level or signals of different levels.
As shown in fig. 4, the car operation control panel 9 is signal-connected to the display panel 10 through the signal conversion device 11 to perform bidirectional communication. The signal conversion device 11 converts the signal from the car operation panel 9 into a signal suitable for the display panel 10 and converts the signal from the display panel 10 into a signal suitable for the car operation panel 9. The car operation control panel 9 controls a display screen (e.g., the first display area 12 of the display screen) to display floor information. When a passenger performs a touch operation on, for example, the first display area 12, the display screen sends a floor signal to the display screen control panel 10, the display screen control panel 10 sends the converted floor signal to the car operation control panel 9 through the signal conversion device 11, the car operation control panel 9 then transmits the corresponding floor signal to the elevator main control device, and the elevator main control device controls the operation of the elevator car in response to the floor signal input by the passenger, for example, the car is caused to travel to the destination floor of the passenger.
In addition, in one embodiment of the present invention, the operation panel further includes a backup power supply (not shown in the figure) to supply power to the emergency call button after the elevator is powered off. As shown in fig. 4, the car operation panel 9 is connected to the emergency call button 7 through an additional line (e.g., the leftmost line between the emergency call button 7 and the car operation panel 9 in fig. 4) to supply power to the emergency call button after the elevator is powered off, so that the emergency call button can be easily found by the trapped person.
The utility model discloses an elevator includes the above elevator car's operating panel, this operating panel sets up on the elevator inside wall.
The utility model discloses an intercom is through setting up extra connector for can show the information relevant with emergency call on elevator car's operating panel's display screen, thereby pacify stranded passenger in the elevator, and realize effectively exchanging with the passenger. Therefore, the utility model discloses an elevator car's operating panel can provide conversation function and demonstration function simultaneously under emergency call's the condition, and the volume is less, simple structure, low cost and safe pleasing to the eye.
The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention to achieve the aim of the invention.

Claims (11)

1. An intercom device for an elevator car, which is internally provided with an emergency call button, a display screen, a car operation control panel used for being in signal connection with an elevator main control device to control the operation of the elevator car and a display screen control panel used for sending instructions to the display screen to display images, and is characterized in that,
the intercom device comprises a microcontroller, a first connector and a second connector,
wherein the microcontroller is in signal connection with the emergency call button and the car operation control panel through the first connector and in signal connection with the display screen control panel through the second connector, and
the microcontroller receives the talkback starting signal from the emergency call button through the first connector after a passenger presses the emergency call button or receives the talkback starting signal from the car operation control panel through the first connector after an elevator host or an elevator machine room extension calls the talkback device to start the talkback function, and sequentially transmits a plurality of display signals to the display screen control panel through the second connector, and the display screen control panel enables the display screen to sequentially display images respectively corresponding to the display signals in response to the display signals.
2. The intercom device according to claim 1, wherein the plurality of display signals include an emergency call start signal, an emergency call connection signal and an emergency call talking signal.
3. The intercom device according to claim 2, wherein the second connector includes a first interface, a second interface, a third interface, and a fourth interface,
the microcontroller transmits a first signal to the display screen control board through the first interface to serve as a reference signal;
after a passenger presses an emergency call button or after an elevator host or an extension set of an elevator machine room calls an intercom device, the microcontroller transmits a second signal to the display screen control panel through the second interface, and the display screen control panel controls the display screen to display an image corresponding to the emergency call starting signal after receiving the emergency call starting signal formed by the first signal and the second signal;
after a period of time, the microcontroller stops transmitting the second signal through the second interface and simultaneously transmits a third signal to the display screen control panel through the third interface, and the display screen control panel controls the display screen to display an image corresponding to the emergency call connection signal after receiving the emergency call connection signal formed by the first signal and the third signal;
after the microcontroller receives a call connection signal from the car operation control panel, the microcontroller stops transmitting a third signal through the third interface and simultaneously transmits a fourth signal to the display screen control panel through the fourth interface, and the display screen control panel controls the display screen to display an image corresponding to the emergency call signal after receiving the emergency call signal formed by the first signal and the fourth signal;
and after the microcontroller receives the call ending signal from the car operation control panel, the microcontroller stops transmitting the fourth signal through the fourth interface, and the display screen control panel controls the display screen to stop displaying the image related to the emergency call.
4. The intercom device according to claim 3, wherein the image corresponding to the emergency call conversation signal includes information indicating that the conversation is in progress and a text prompt message according to which the passenger can converse with the outside through the intercom device.
5. An operating panel of an elevator car, characterized in that the operating panel comprises an intercom device according to any one of claims 1 to 4, an emergency call button, a display screen, a car operating panel and a display screen panel.
6. The operating panel of claim 5, further comprising a signal converting means, the second connector of the intercom being in signal connection with the display screen control board through the signal converting means, the signal converting means converting a signal from the second connector into a signal suitable for the display screen control board.
7. The operating panel of claim 6, wherein the car operating panel is in signal connection with the display panel to control the display panel to display the floor information.
8. The operating panel of claim 7, wherein the display screen is a touch display screen, and when a passenger performs a touch operation on the display screen, the display screen transmits a floor signal to the elevator main control device through the display screen control panel and the car operation control panel, and the elevator main control device controls the operation of the elevator car in response to the floor signal.
9. The operating panel of claim 8, wherein the car operation control panel is signal-connected to the display panel through a signal converting means which converts a signal from the car operation control panel into a signal suitable for the display panel and converts a signal from the display panel into a signal suitable for the car operation control panel.
10. The operator panel of claim 7, wherein the display screen includes a first display area and a second display area, wherein the first display area displays floor information, and the second display area sequentially displays images corresponding to the emergency call start signal, the emergency call connection signal, and the emergency call talking signal when the elevator car is in the emergency call situation.
11. Elevator, characterized in that it comprises an operating panel according to any of claims 5-10.
CN201921248803.3U 2019-08-02 2019-08-02 Intercom device of elevator car, operation panel of elevator car and elevator Active CN210795404U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921248803.3U CN210795404U (en) 2019-08-02 2019-08-02 Intercom device of elevator car, operation panel of elevator car and elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921248803.3U CN210795404U (en) 2019-08-02 2019-08-02 Intercom device of elevator car, operation panel of elevator car and elevator

Publications (1)

Publication Number Publication Date
CN210795404U true CN210795404U (en) 2020-06-19

Family

ID=71243665

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921248803.3U Active CN210795404U (en) 2019-08-02 2019-08-02 Intercom device of elevator car, operation panel of elevator car and elevator

Country Status (1)

Country Link
CN (1) CN210795404U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110329858A (en) * 2019-08-02 2019-10-15 通力电梯有限公司 The talkback unit of lift car, the operation panel of lift car and elevator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110329858A (en) * 2019-08-02 2019-10-15 通力电梯有限公司 The talkback unit of lift car, the operation panel of lift car and elevator

Similar Documents

Publication Publication Date Title
CN210795404U (en) Intercom device of elevator car, operation panel of elevator car and elevator
CN106715308A (en) Elevator system
CN213141048U (en) Intelligent voice elevator calling control system
CN110329858A (en) The talkback unit of lift car, the operation panel of lift car and elevator
CN109891863B (en) Building controller and intercom system
JPH1081455A (en) Communication device for elevator
KR20130124654A (en) Communication apparatus for elevator
RU194556U1 (en) Remote control device for intercom via global Internet
JP2000341682A (en) Intercom unit and monitor television unit
CN215326267U (en) Elevator warning communication device convenient for disabled people
JPH09151044A (en) Display device for emergency message of elevator
KR20170004086U (en) Information display device for elevator emergency call device
CN109964474B (en) Building controller and intercom system
KR200414563Y1 (en) Apparatus for automatically calling elevator
JP3125993U (en) TV intercom equipment
CN219835376U (en) Electronic equipment storage cabinet
CN108923942A (en) For ensureing the IP broadcast intercom system of Campus Security
CN108569601A (en) A kind of elevator operation is shown and communication system
JP2000069575A (en) Home automation system
JP3836705B2 (en) Apartment house intercom system
CN211830991U (en) Multifunctional display and control console suitable for fixed command places
JPH0896281A (en) Monitoring system
JPS61195062A (en) Multiple display type television door phone
JP2024058028A (en) Common entrance device, relay system, communication system, intercom system, intercom relay system, relay device, entrance slave unit, and main unit
JPH10136104A (en) House information panel system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant