CN112995178A - Elevator multi-party call device with remote callback function - Google Patents
Elevator multi-party call device with remote callback function Download PDFInfo
- Publication number
- CN112995178A CN112995178A CN202110212855.0A CN202110212855A CN112995178A CN 112995178 A CN112995178 A CN 112995178A CN 202110212855 A CN202110212855 A CN 202110212855A CN 112995178 A CN112995178 A CN 112995178A
- Authority
- CN
- China
- Prior art keywords
- call
- module
- elevator
- unit
- terminal
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42195—Arrangements for calling back a calling subscriber
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
The invention provides an elevator multi-party communication device with a remote callback function, which comprises: the first call module is used for establishing call connection with the elevator terminal; the second communication module is used for establishing a communication connection processing module with the external terminal and is used for accessing the external terminal into the current communication with the elevator terminal so as to realize the communication connection between the external terminal and the elevator terminal; the first communication module comprises a call-back unit, a call-back unit and a call-back unit, wherein the call-back unit is used for calling back a corresponding elevator terminal according to a call record and establishing communication connection with the corresponding elevator terminal; the call record is generated according to the call request when the first call module receives the call request of the elevator terminal. The elevator intercom device is beneficial to improving the adaptability of the elevator intercom device to special people.
Description
Technical Field
The invention relates to the technical field of intelligent elevator equipment, in particular to an elevator multi-party call device with a remote callback function.
Background
Most of elevator equipment is provided with an intercom system, so that passengers in the elevator can contact a duty room when the elevator is in an emergency, the passengers trapped in the elevator and the duty personnel can communicate with the conditions in the elevator in time, and the duty personnel can take corresponding measures in time.
However, most of the existing elevator intercom systems can only provide one-way connection between the elevator and a duty room, and a leak exists when the elevator intercom system is used for certain specific user groups (such as old people, children and the like), so that the use effect of the elevator intercom system is influenced.
Disclosure of Invention
In view of the above problems, the present invention is directed to an elevator multi-party call device with remote callback function.
The purpose of the invention is realized by adopting the following technical scheme:
the invention discloses an elevator multi-party communication device with a remote callback function, which comprises: the first call module is used for establishing call connection with the elevator terminal;
the second communication module is used for establishing communication connection with an external terminal;
the processing module is used for accessing the external terminal into the current call with the elevator terminal to realize the call connection between the external terminal and the elevator terminal;
the first communication module comprises a call-back unit, a call-back unit and a call-back unit, wherein the call-back unit is used for calling back a corresponding elevator terminal according to a call record and establishing communication connection with the corresponding elevator terminal; wherein the call record is generated by the first call module upon receiving a call request from the elevator terminal.
Optionally, the elevator multi-party call device further comprises an acquisition module and a playing module;
the acquisition module is used for acquiring a user call signal, transmitting the user call signal to the elevator terminal through the first call module, and transmitting the user call signal to the external terminal through the second call module;
the playing module is used for playing the call signals transmitted by the first call module and the second call module.
Optionally, the acquisition module includes a voice acquisition unit and a video acquisition unit;
the voice acquisition unit is used for acquiring a user voice call signal;
the video acquisition unit is used for acquiring a user video call signal;
the user call signal comprises a user voice call signal and a user video call signal;
the playing module also comprises a voice playing unit and a video playing unit;
the voice playing unit is used for playing voice call signals transmitted by the first call module and the second call module;
the video playing unit is used for playing the video call signals transmitted by the first call module and the second call module.
Optionally, the processing module includes a receiving unit and a mixing processing unit;
the receiving unit is used for respectively receiving voice call signals transmitted by the acquisition module, the first call module and the second call module;
the sound mixing processing unit is used for carrying out sound mixing processing according to the voice call signals transmitted by the acquisition module, the first call module and the second call module respectively, and transmitting the voice call signals after sound mixing to the corresponding playing module, the first call module and the second call module.
Optionally, the processing module further includes a video processing unit, and the video processing unit is configured to perform enhancement processing on the video call signal transmitted by the first call module and the second call module.
The invention has the beneficial effects that: the communication device capable of achieving the remote callback function and the multi-party communication is suitable for being used for establishing communication connection with an elevator terminal, and meanwhile, an external terminal can be further actively added to call to join the communication, so that the external terminal can achieve the multi-party communication with the elevator terminal and the communication device, and the adaptability of the elevator communication device to special people is improved.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a frame structure diagram of an embodiment of an elevator multi-party call device with a remote callback function according to the present invention.
Detailed Description
The invention is further described in connection with the following application scenarios.
Referring to fig. 1, an elevator multi-party call device with a remote callback function includes: the first call module is used for establishing call connection with the elevator terminal;
a second communication module for establishing communication connection with an external terminal
The processing module is used for accessing the external terminal into the current call with the elevator terminal to realize the call connection between the external terminal and the elevator terminal;
the first communication module comprises a call-back unit, a call-back unit and a call-back unit, wherein the call-back unit is used for calling back a corresponding elevator terminal according to a call record and establishing communication connection with the corresponding elevator terminal; wherein the call record is a call record generated by the first call module when a call request of the elevator terminal is received.
In one scenario, the elevator terminal comprises an intercom terminal arranged in an elevator car, the external terminal is an intelligent communication terminal (such as a smart phone and the like) of a designated user, and the call device is arranged in a duty room, wherein the elevator multi-party call device is in communication connection with the elevator terminals of the elevators, and the call connection between the call device and the elevator terminals is realized through the first call module; meanwhile, the communication device can initiate a call request to the external terminal, and the second communication module is used for establishing communication connection with the external terminal, so that multi-party communication among the elevator terminal, the communication device and the external terminal is realized.
In one scenario, when the elevator is in failure, a passenger can initiate a call request to the communicator through the elevator terminal, and a person on duty can operate the communicator to establish a call connection with the elevator terminal in response to the call request, so that the person on duty can get in touch with the passenger in the car. When the person on duty finds that the emotion of the passenger is unstable, the person on duty can further dial a family contact way corresponding to the passenger through the communication device (if the passenger is a child of a unit resident, the person on duty can dial the contact way of a parent of the unit according to the unit number), contact the family through the communication device and inform the situation on site, and meanwhile, the family can be accessed into the communication between the current communication device and the elevator terminal through the processing module, so that the family can directly communicate with the passenger trapped in the car, the emotion of the trapped passenger can be directly soothed by the family, and the situation on site can be stabilized.
In a scene, aiming at the condition that a person on duty possibly leaves a duty room and misses a call request initiated by an elevator terminal, a call device is also provided with a callback unit, when the call device receives the call request from the elevator terminal, a first call module can automatically generate a call record according to the ID information of the elevator terminal and carry out highlight display on the call record, when the person on duty returns to the duty room and finds the call record at the first time, the corresponding elevator terminal can be called back according to the ID information of the elevator terminal to establish call connection with the elevator terminal, the problem that the opportunity of establishing a call is missed when the real-time call request is missed in a traditional elevator object system is avoided, and the stability of the call device is improved.
In the above embodiment, a communication device capable of implementing a remote callback function and a multi-party communication is provided, and when the communication device is suitable for establishing a communication connection with an elevator terminal, an external terminal can be further actively added to call for communication, so that the external terminal can realize multi-party communication with the elevator terminal and the communication device, and the improvement of the adaptability of the elevator communication device to special people is facilitated.
Optionally, the communication device further includes a dialing module, where the dialing module is configured to initiate a call request to the external terminal in a dialing/calling manner, and after the external terminal responds to the call request, the communication device establishes a communication connection with the external terminal through the second communication module.
In one scenario, the dialing module may call the external terminal by way of a telephone number, or the network ID may call the external terminal by way of a local area network.
In one scenario, the external terminals include a mobile phone, an intercom, an indoor intercom terminal, and the like.
The external terminal can also be actively accessed into the multi-party call device, and the corresponding elevator terminal is called back according to the call record to establish call connection with the elevator terminal.
Optionally, the communication device further comprises an acquisition module and a playing module;
the acquisition module is used for acquiring a user call signal, transmitting the user call signal to the elevator terminal through the first call module, and transmitting the user call signal to the external terminal through the second call module;
the playing module is used for playing the call signals transmitted by the first call module and the second call module.
Optionally, the acquisition module includes a voice acquisition unit and a video acquisition unit;
the voice acquisition unit is used for acquiring a user voice call signal;
the video acquisition unit is used for acquiring a user video call signal;
wherein the user call signal comprises a user voice call signal and a user video call signal.
The playing module also comprises a voice playing unit and a video playing unit;
the voice playing unit is used for playing voice call signals transmitted by the first call module and the second call module;
the video playing unit is used for playing the video call signals transmitted by the first call module and the second call module.
The communication modes of the communication device, the elevator terminal and the external terminal comprise voice communication and video communication, and different requirements can be met.
Optionally, the first communication module includes a GSM unit, and/or the second communication module includes a GSM unit. The communication device is connected with the elevator terminal and the external terminal based on the GSM unit to realize data interaction.
Optionally, the processing module includes a receiving unit and a mixing processing unit;
the receiving unit is used for respectively receiving voice call signals transmitted by the acquisition module, the first call module and the second call module;
the sound mixing processing unit is used for carrying out sound mixing processing according to the voice call signals transmitted by the acquisition module, the first call module and the second call module respectively, and transmitting the voice call signals after sound mixing to the corresponding playing module, the first call module and the second call module.
The communication device is the basis for realizing multi-party communication, wherein the processing module is provided with a sound mixing processing unit which can perform sound mixing processing on voice communication signals transmitted by the communication device, the elevator terminal and the external terminal in real time, for example, the voice communication signals collected by the acquisition module of the communication device and the voice communication signals transmitted by the external terminal are subjected to sound mixing processing, and the sound mixing signals are transmitted to the elevator terminal; after the voice call signals respectively transmitted by the elevator terminal and the external terminal are subjected to sound mixing processing, the voice call signals are played through a playing module of the call device, and multi-party call among the elevator terminal, the call device and the external terminal is realized.
Optionally, the processing module further includes a voice processing unit, and the voice processing unit is configured to perform enhancement processing on the voice call signal received by the receiving unit, and send the voice call signal after the enhancement processing to the sound mixing processing unit.
1) Framing and windowing the voice call signal acquired by the receiving unit, wherein the voice signal comprises a voice call signal which is received by the first call module and transmitted to the call device by the elevator terminal, a voice call signal which is received by the second call module and transmitted to the call device by the external terminal, and a voice call signal acquired by the call device by the acquisition module;
2) processing each frame of voice call signal in sequence according to the transmission sequence of the voice call signal, wherein the processing for the current frame of voice call signal comprises:
21) carrying out Fourier transform on the current frame voice call signal to obtain a frequency spectrum | X (i, j) | of the current frame voice call signal;
22) obtaining noise spectrum estimation | N (i, j) | according to the current frame voice call signal:
where | N (i, j) | represents a noise spectrum of the current frame voice call signalEstimating, i represents the current frame number, j represents the frequency level, | X (i, j) | represents the frequency spectrum of the voice call signal of the current frame, | N (i-1, j) |, | N (i-2, j) |, | N (i-3, j) | represents the noise frequency spectrum estimation of the voice call signal of the previous 1 frame, the previous 2 frame and the previous 3 frame of the current frame respectively, | represents the set tolerance adjusting parameter, mu represents the set compensation parameter, and T (| N (i, j) |) represents the transition estimation parameter, wherein | N (i, j) |) represents the transition estimation parameter
ω and
respectively representing transition regulation parameters;
23) performing spectral subtraction processing based on the spectrum | X (i, j) | of the current frame voice call signal and the noise spectrum estimation | N (i, j) | to obtain a voice call signal spectrum | X' (i, j) |:
|X′(i,j)|＝|X(i,j)|-ρ|N(i,j)|-(1-ρ)|N(i-1,j)|
in the formula, rho represents a set mixed adjustment parameter, wherein rho belongs to [0.7,0.99 ];
24) and performing inverse Fourier transform according to the voice call signal spectrum | X' (i, j) | to obtain the current frame voice call signal after enhancement processing.
Wherein, in the processing of the voice call signal of the first M frames in the initial transmission period of the voice call signal, the corresponding noise spectrum estimation
M represents the set adaptation frame number.
In the above embodiment, the processing module of the communication device is further provided with a special processing unit for performing enhancement processing on the voice communication signal transmitted by the communication device, so as to improve the quality of the voice communication signal transmitted by each party in the multi-party communication process.
Optionally, the processing module further includes a video processing unit, and the video processing unit is configured to perform enhancement processing on the video call signal transmitted by the first call module and the second call module.
Optionally, the video processing unit performs enhancement processing on the video call signal transmitted by the first call module and the second call module, and further includes:
performing framing processing on the video call signal to acquire each frame of video call image in the video call signal;
sequentially enhancing each frame of video call image, and outputting each enhanced frame of video call image;
and reconstructing according to the enhanced video call images to obtain enhanced video call signals, and transmitting the enhanced video call signals to the corresponding playing module, the first call module and the second call module.
Wherein, in the video processing unit, carry out enhancement processing to each frame video call image respectively in proper order, each frame video call image after the output enhancement further includes:
in the processing process, aiming at the current processing frame video call image, the image is subjected to enhancement processing, and the enhancement processing comprises the following steps:
dividing a current frame video call image into N multiplied by N area units with the same size, and acquiring information representation parameters of each area unit:
in the formula, B (n) represents the information characterization parameter of the nth area unit, (a, b) represents the pixel point in the nth area unit, H (a, b) represents the gray value of the pixel point (a, b), HpiRepresenting a set image characterizing threshold, SnThe total number of pixel points in the nth area unit is represented, wherein N is 1,2, … and N is multiplied by N;
aiming at each pixel point in the current frame video call image, enhancing each pixel point:
in the formula, H' (x, y) represents enhancement processingThe gray value of the rear pixel point (x, y), H (x, y) represents the gray value of the pixel point (x, y) in the video call image of the current frame,
represents the gray average value H of the neighborhood pixels in the 3 x 3 region centered on the pixel (x, y) in the current frame video call imagen(x,y)Representing the gray level mean value of each pixel in a region unit n (x, y) where the pixel (x, y) is located in the current frame video call image, B (n (x, y)) representing the information representation parameter of the region unit n (x, y) where the pixel is located, T representing a set region judgment threshold value, and H't-1Representing the gray value omega of the enhanced pixel point (x, y) in the last frame of video call image1、ω2、ω3、ω4、ω5Respectively representing set weight parameters;
respectively carrying out enhancement processing on each pixel point and then inputting an enhanced current frame video image;
and reconstructing each enhanced frame of video image to obtain an enhanced video call signal.
In the above embodiment, a technical solution for performing enhancement processing on a video call signal transmitted by an elevator terminal and an external terminal is further provided, so as to solve the problem that image quality is damaged due to the fact that the elevator terminal and the external terminal are easily affected by an unstable environment in the process of performing the video call signal. The communication device frames the video communication in sequence according to the sequence of the received video communication signals and processes each frame signal in sequence, wherein an image enhancement processing technical scheme based on a region unit is provided for the video communication image of each frame, and the image enhancement processing technical scheme is particularly used for respectively processing a part with more detail characteristics and a part with less detail characteristics according to the image characteristics of the video communication image, so that the improvement of the image definition of the video image can be facilitated, and the noise interference in the image can be effectively removed.
It should be noted that, functional units/modules in the embodiments of the present invention may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules are integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of software functional units/modules.
From the above description of embodiments, it is clear for a person skilled in the art that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code or any appropriate combination thereof. For a hardware implementation, a processor may be implemented in one or more of the following units: an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, other electronic units designed to perform the functions described herein, or a combination thereof. For a software implementation, some or all of the procedures of an embodiment may be performed by a computer program instructing associated hardware. In practice, the program may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be analyzed by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. An elevator multi-party call device with a remote callback function, comprising: the first call module is used for establishing call connection with the elevator terminal;
the second communication module is used for establishing communication connection with an external terminal;
the processing module is used for accessing the external terminal into the current call with the elevator terminal to realize the call connection between the external terminal and the elevator terminal;
the first communication module comprises a call-back unit, a call-back unit and a call-back unit, wherein the call-back unit is used for calling back a corresponding elevator terminal according to a call record and establishing communication connection with the corresponding elevator terminal; wherein the call record is generated by the first call module upon receiving a call request of the elevator terminal.
2. The elevator multi-party call device with the remote callback function as claimed in claim 1, further comprising a collection module and a playing module;
the acquisition module is used for acquiring a user call signal, transmitting the user call signal to the elevator terminal through the first call module, and transmitting the user call signal to the external terminal through the second call module;
the playing module is used for playing the call signals transmitted by the first call module and the second call module.
3. The elevator multi-party call device with the remote callback function as claimed in claim 1, wherein the collection module comprises a voice collection unit and a video collection unit;
the voice acquisition unit is used for acquiring a user voice call signal;
the video acquisition unit is used for acquiring a user video call signal;
the user call signal comprises a user voice call signal and a user video call signal;
the playing module also comprises a voice playing unit and a video playing unit;
the voice playing unit is used for playing voice call signals transmitted by the first call module and the second call module;
the video playing unit is used for playing the video call signals transmitted by the first call module and the second call module.
4. The elevator multi-party call device with the remote callback function as claimed in claim 3, wherein the processing module comprises a receiving unit and a mixing processing unit;
the receiving unit is used for respectively receiving voice call signals transmitted by the acquisition module, the first call module and the second call module;
the sound mixing processing unit is used for carrying out sound mixing processing according to the voice call signals transmitted by the acquisition module, the first call module and the second call module respectively, and transmitting the voice call signals after sound mixing to the corresponding playing module, the first call module and the second call module.
5. The elevator multi-party call device with the remote callback function as claimed in claim 4, wherein the processing module further comprises a video processing unit for performing enhancement processing on the video call signals transmitted by the first call module and the second call module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110212855.0A CN112995178B (en) | 2021-02-25 | 2021-02-25 | Elevator multiparty call device with remote callback function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110212855.0A CN112995178B (en) | 2021-02-25 | 2021-02-25 | Elevator multiparty call device with remote callback function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112995178A true CN112995178A (en) | 2021-06-18 |
| CN112995178B CN112995178B (en) | 2023-04-25 |
Family
ID=76350755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110212855.0A Active CN112995178B (en) | 2021-02-25 | 2021-02-25 | Elevator multiparty call device with remote callback function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112995178B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115766670A (en) * | 2022-11-03 | 2023-03-07 | 四川汇龙智能工业技术服务有限公司 | Method for realizing simultaneous multi-party call between elevator and outside |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08256382A (en) * | 1995-03-16 | 1996-10-01 | Toshiba Elevator Technos Kk | Remote supervisory system for elevator |
| CN202518901U (en) * | 2011-12-27 | 2012-11-07 | 上海永大电梯设备有限公司 | Wireless telephone alarm system of elevator |
| CN103159100A (en) * | 2011-12-09 | 2013-06-19 | 北京科苑隆科技有限公司 | Internet of things elevator monitoring system |
| CN105621186A (en) * | 2016-03-17 | 2016-06-01 | 杭州高城科技有限公司 | Elevator maintenance device and elevator safety system with elevator maintenance device |
| CN106315331A (en) * | 2015-06-25 | 2017-01-11 | 赵红芳 | System of remotely processing elevator failures |
| CN106328156A (en) * | 2016-08-22 | 2017-01-11 | 华南理工大学 | Microphone array voice reinforcing system and microphone array voice reinforcing method with combination of audio information and video information |
| CN206922933U (en) * | 2017-06-21 | 2018-01-23 | 深圳市吉融科技有限公司 | A kind of audio frequency and video clawback communication apparatus |
| CN207596269U (en) * | 2017-12-13 | 2018-07-10 | 甘肃省建筑设计研究院 | A kind of elevator intercommunication phone system based on security protection net |
| CN110300276A (en) * | 2019-06-25 | 2019-10-01 | 成都新潮传媒集团有限公司 | A kind of elevator safety management system and its method for supporting multi-party video calls |
| CN111311526A (en) * | 2020-02-25 | 2020-06-19 | 深圳市朗驰欣创科技股份有限公司 | Video enhancement method, video enhancement device and terminal equipment |
| CN111436011A (en) * | 2019-01-11 | 2020-07-21 | 郭哲 | Real-time cloud network elevator intercom system |
| CN111861204A (en) * | 2020-07-20 | 2020-10-30 | 山东劳动职业技术学院（山东劳动技师学院） | Course mobile learning evaluation system and method based on intelligent platform |
-
2021
- 2021-02-25 CN CN202110212855.0A patent/CN112995178B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08256382A (en) * | 1995-03-16 | 1996-10-01 | Toshiba Elevator Technos Kk | Remote supervisory system for elevator |
| CN103159100A (en) * | 2011-12-09 | 2013-06-19 | 北京科苑隆科技有限公司 | Internet of things elevator monitoring system |
| CN202518901U (en) * | 2011-12-27 | 2012-11-07 | 上海永大电梯设备有限公司 | Wireless telephone alarm system of elevator |
| CN106315331A (en) * | 2015-06-25 | 2017-01-11 | 赵红芳 | System of remotely processing elevator failures |
| CN105621186A (en) * | 2016-03-17 | 2016-06-01 | 杭州高城科技有限公司 | Elevator maintenance device and elevator safety system with elevator maintenance device |
| CN106328156A (en) * | 2016-08-22 | 2017-01-11 | 华南理工大学 | Microphone array voice reinforcing system and microphone array voice reinforcing method with combination of audio information and video information |
| CN206922933U (en) * | 2017-06-21 | 2018-01-23 | 深圳市吉融科技有限公司 | A kind of audio frequency and video clawback communication apparatus |
| CN207596269U (en) * | 2017-12-13 | 2018-07-10 | 甘肃省建筑设计研究院 | A kind of elevator intercommunication phone system based on security protection net |
| CN111436011A (en) * | 2019-01-11 | 2020-07-21 | 郭哲 | Real-time cloud network elevator intercom system |
| CN110300276A (en) * | 2019-06-25 | 2019-10-01 | 成都新潮传媒集团有限公司 | A kind of elevator safety management system and its method for supporting multi-party video calls |
| CN111311526A (en) * | 2020-02-25 | 2020-06-19 | 深圳市朗驰欣创科技股份有限公司 | Video enhancement method, video enhancement device and terminal equipment |
| CN111861204A (en) * | 2020-07-20 | 2020-10-30 | 山东劳动职业技术学院（山东劳动技师学院） | Course mobile learning evaluation system and method based on intelligent platform |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115766670A (en) * | 2022-11-03 | 2023-03-07 | 四川汇龙智能工业技术服务有限公司 | Method for realizing simultaneous multi-party call between elevator and outside |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112995178B (en) | 2023-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10542136B2 (en) | Transcribing audio communication sessions | |
| US20210375298A1 (en) | Voice processing method, apparatus, electronic device, and storage medium | |
| US11276392B2 (en) | Communication of transcriptions | |
| CN100484240C (en) | Network terminalized door-bell system and method | |
| US11765017B2 (en) | Network device maintenance | |
| CN104767960B (en) | Wechat storied building visible intercommunication system and its communication means | |
| DK2551847T3 (en) | A method of reducing power consumption calls for a mobile terminal and a mobile terminal | |
| WO2021052110A1 (en) | Method and device for improving sound quality of speaker | |
| WO2011050682A1 (en) | Method and device for realizing videophone | |
| CN110602327A (en) | Voice call method and device, electronic equipment and computer readable storage medium | |
| WO2014182751A1 (en) | Noise reduction | |
| CN112995178A (en) | Elevator multi-party call device with remote callback function | |
| CN117480554A (en) | Voice enhancement method and related equipment | |
| CN113015262B (en) | All-digital elevator multiparty call device | |
| JP6153020B2 (en) | Mobile terminal, program, call system | |
| US8345664B2 (en) | IP communication apparatus | |
| JP2011055103A (en) | Condominium intercom system | |
| US8615073B2 (en) | Image display apparatus, communications control method of the same, and communications control system | |
| US11580985B2 (en) | Transcription of communications | |
| CN115174724A (en) | Call noise reduction method, device and equipment and readable storage medium | |
| CN114466324A (en) | Calling method and related device | |
| JP7006302B2 (en) | Image processing equipment, image processing system, and video conference system | |
| KR20130132040A (en) | Method and system for conference call using a different kinds of device | |
| CN102932656A (en) | Video data transmission method and device | |
| CN113015103B (en) | Digital multi-party calling device supporting elevator entrance guard function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |