CN113015103A - Digital multi-party calling device supporting elevator entrance guard function - Google Patents
Digital multi-party calling device supporting elevator entrance guard function Download PDFInfo
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- CN113015103A CN113015103A CN202110212864.XA CN202110212864A CN113015103A CN 113015103 A CN113015103 A CN 113015103A CN 202110212864 A CN202110212864 A CN 202110212864A CN 113015103 A CN113015103 A CN 113015103A
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- user terminal
- call
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- elevator
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3446—Data transmission or communication within the control system
- B66B1/3461—Data transmission or communication within the control system between the elevator control system and remote or mobile stations
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
- G07C9/38—Individual registration on entry or exit not involving the use of a pass with central registration
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention provides a digital multi-party communication device supporting an elevator entrance guard function, which comprises an elevator terminal, a first user terminal, a second user terminal, a wireless communication host and an entrance guard control terminal, wherein the elevator terminal is connected with the first user terminal through a wireless communication host; the elevator terminal, the first user terminal and the second user terminal are respectively connected with the wireless communication host; the elevator terminal is used for sending a call request to the first user terminal through the wireless communication host, and establishing communication connection with the first user terminal through the wireless communication host after the first user terminal answers the call request; the first user terminal is used for sending a call request to the second user terminal through the wireless call host, so that the second user terminal is added to the current call after answering the call request; and the access control terminal is used for sending an authority control instruction to the access control terminal; and the access control terminal is used for controlling the elevator access control system to open corresponding control authority according to the received authority control instruction. The invention improves the adaptability of the elevator access control system.
Description
Technical Field
The invention relates to the technical field of elevator entrance guard, in particular to a digital multi-party call device supporting an elevator entrance guard function.
Background
Nowadays, more and more big mansion all is provided with elevator entrance guard in the elevator of high-rise buildings such as house, and elevator entrance guard can take personnel to the elevator and control and manage, prevents that the idle personnel from taking the elevator wantonly and come in and go out the control area to improve the regional safety control level of control.
In the prior art, most of elevator access control systems adopting card swiping type activate an elevator control device through card swiping, so that a user can be allowed to use and take an elevator to reach a corresponding floor, but the mode is not very convenient for external visiting persons to use.
Disclosure of Invention
In view of the above problems, the present invention is directed to a digital multi-party call device supporting an elevator door access function.
The purpose of the invention is realized by adopting the following technical scheme:
the invention discloses a digital multi-party communication device supporting an elevator entrance guard function, which comprises an elevator terminal, a first user terminal, a second user terminal, a wireless communication host and an entrance guard control terminal, wherein the elevator terminal is connected with the first user terminal through a wireless communication host;
the elevator terminal, the first user terminal and the second user terminal are respectively connected with the wireless communication host;
the elevator terminal is used for sending a call request to the first user terminal through the wireless communication host, and establishing communication connection with the first user terminal through the wireless communication host after the first user terminal answers the call request;
the first user terminal is used for sending a call request to the second user terminal through the wireless call host, so that the second user terminal is added to the current call after answering the call request; and the access control terminal is used for sending an authority control instruction to the access control terminal;
and the access control terminal is used for controlling the elevator access control system to open corresponding control authority according to the received authority control instruction.
Optionally, the elevator terminal comprises a calling module and a call module;
the calling module is used for sending a calling request to the first user terminal;
the call module is used for establishing call connection with the wireless call host, and after the call connection is established between the first user terminal and the wireless call host, the call module establishes call with the first user terminal.
Optionally, the first user terminal includes a control module, wherein:
the control module is used for selecting a corresponding floor and sending a corresponding authority control instruction to the access control terminal according to the selected floor.
Optionally, the wireless communication host includes a receiving unit and a mixing processing unit, wherein:
the receiving unit is used for respectively receiving voice call signals sent by the elevator terminal, the first user terminal and the second user terminal;
the sound mixing processing unit is used for carrying out sound mixing processing according to the voice call signals respectively sent by the elevator terminal, the first user terminal and the second user terminal, and sending the voice call signals after sound mixing to the corresponding elevator terminal, the first user terminal and the second user terminal.
Optionally, the wireless communication host further includes a processing unit, wherein:
the processing unit is used for enhancing the voice call signal received by the receiving unit and sending the voice call signal after enhancement processing to the sound mixing processing unit.
The invention has the beneficial effects that: the multi-party call device based on the wireless call host is built, wherein the elevator terminal, the first user terminal and the second user terminal are all connected with the wireless call host, so that multi-party call is realized; the elevator access control system is beneficial to describing fixed users and the visitors who need to visit by communicating with the manager, the manager is further communicated with the fixed users to verify and acquire the visiting instructions transmitted by the fixed users, and the manager opens corresponding elevator use permission so that the visitors can reach appointed floors according to the visiting instructions transmitted by the fixed users.
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 a digital multi-party call device supporting an elevator entrance guard function according to the present invention.
Detailed Description
The invention is further described in connection with the following application scenarios.
Referring to fig. 1, the embodiment of the invention provides a digital multi-party call device supporting an elevator entrance guard function, which comprises an elevator terminal, a first user terminal, a second user terminal, a wireless call host and an entrance guard control terminal;
the elevator terminal, the first user terminal and the second user terminal are respectively connected with the wireless communication host;
the elevator terminal is used for sending a call request to the first user terminal through the wireless communication host, and establishing communication connection with the first user terminal through the wireless communication host after the first user terminal answers the call request;
the first user terminal is used for sending a call request to the second user terminal through the wireless call host, so that the second user terminal is added to the current call after answering the call request; and the access control terminal is used for sending an authority control instruction to the access control terminal;
and the access control terminal is used for controlling the elevator access control system to open corresponding control authority according to the received authority control instruction.
The elevator terminal is arranged and the access control terminal is arranged at an elevator access control system, the access control terminal is connected with the elevator access control system, and the elevator access control system can be controlled to open corresponding authority (such as allowing an elevator to reach an appointed floor, activating a button of a corresponding floor and the like) according to a received authority control command. The elevator terminal is used for visitors (such as couriers, delivery personnel, visitors and the like). The first user terminal is arranged at an elevator management party and can be used by management personnel (such as a manager, an access control manager, a hall reception person and the like) and send a corresponding authority control instruction to the access control terminal. The second user terminal is arranged at a fixed user (such as an enterprise, a business, a resident and the like) of the building and used by the fixed user.
In the embodiment, the multi-party call device based on the wireless call host is set up, wherein the elevator terminal, the first user terminal and the second user terminal are all connected with the wireless call host, so that the multi-party call is realized; the method is beneficial to firstly carrying out communication with a manager to describe the fixed user and the intention to be visited when a visitor needs to visit a fixed user of a building, the manager is further communicated with the fixed user to verify and obtain the visiting instruction transmitted by the fixed user, so that the manager can open the corresponding elevator use permission, the visitor can reach the appointed floor according to the visiting instruction transmitted by the fixed user, and the method is particularly suitable for indicating the visitor to reach the corresponding floor according to the actual condition when the same fixed user simultaneously owns a plurality of floors, so that the adaptability of the elevator access control system is improved.
Meanwhile, the manager preliminarily verifies the intention and identity of the visitor through the first user terminal, so that the problem that the visitor intentionally tries to call different fixed users to bump the fortune through the elevator access control system in the traditional elevator access control system is solved, and the management safety of the elevator access control system is improved.
Optionally, the elevator terminal comprises a calling module and a call module;
the calling module is used for sending a calling request to the first user terminal;
the call module is used for establishing call connection with the wireless call host, and after the call connection is established between the first user terminal and the wireless call host, the call module establishes call with the first user terminal.
The visitor sends a call request to the wireless call host through the call module on the elevator terminal, and the wireless call host forwards the call request to the first user terminal for calling. Meanwhile, when the elevator terminal initiates a call request, the call is connected with the wireless call host according to the module and is in an on-hook state in the wireless call host, and when the first user terminal accesses the wireless call host, the elevator terminal and the second user rotate to establish call connection.
Optionally, the elevator terminal, the first user terminal, and the second user terminal are all provided with a GSM (Global System for Mobile Communications) communication module, and a call connection is established with the wireless call host through the GSM communication module. The GSM communication module is used for establishing a digital signal-based transmission mode, so that the stability in the signal transmission process can be improved.
Optionally, the first user terminal includes a control module, wherein:
the control module is used for selecting a corresponding floor and sending a corresponding authority control instruction to the access control terminal according to the selected floor.
The management personnel select the corresponding floor through the control module, the control module generates a corresponding authority control instruction according to the selected floor information and sends the authority control instruction to the access control terminal, and the access control terminal executes corresponding operation according to the authority control instruction.
In one scenario, when a fixed user indicates that a delivery person is to obtain and deliver to a 9 th floor, a manager selects the 9 th floor from a first user terminal according to the content of a multi-party call, the first user terminal generates a corresponding authority control instruction and sends the instruction to an access control terminal, the access control terminal controls an elevator access control system to open the operation authority of the 9 th floor, and the delivery person can select the 9 th floor from an elevator to control the elevator to reach the corresponding floor.
Optionally, the elevator terminal includes a voice acquisition unit and a voice playing unit;
the voice acquisition unit is used for acquiring voice call signals;
the voice playing unit is used for playing the voice communication signal transmitted by the wireless communication host.
Optionally, the wireless communication host includes a receiving unit and a mixing processing unit, wherein:
the receiving unit is used for respectively receiving voice call signals sent by the elevator terminal, the first user terminal and the second user terminal;
the sound mixing processing unit is used for carrying out sound mixing processing according to the voice call signals respectively sent by the elevator terminal, the first user terminal and the second user terminal, and sending the voice call signals after sound mixing to the corresponding elevator terminal, the first user terminal and the second user terminal.
The wireless communication host is a basis for realizing multi-party communication, wherein the wireless communication host is provided with a sound mixing processing unit, and can perform sound mixing processing on voice communication signals transmitted by an elevator terminal, a first user terminal and a second user terminal in real time, for example, the voice communication signals received by the first user terminal and the second user terminal are subjected to sound mixing processing, and then the sound mixing signals are transmitted to the elevator terminal; and after the voice call signal transmitted by the elevator terminal and the first user terminal is subjected to sound mixing processing, transmitting the sound mixing signal to a second user terminal, and the like, so that the multi-party call among the elevator terminal, the first user terminal and the second user terminal is realized.
Optionally, the wireless communication host further includes a processing unit, wherein:
the processing unit is used for enhancing the voice call signal received by the receiving unit and sending the voice call signal after enhancement processing to the sound mixing processing unit.
In the above embodiment, the wireless communication host is further provided with a processing unit for performing enhancement processing on the voice communication signal, so that the transmitted voice communication signal can be enhanced in the multi-party communication process, the definition of the voice communication signal is improved, and the quality of the multi-party communication is improved.
Optionally, the elevator terminal further comprises a video acquisition unit;
the video acquisition unit is used for acquiring video call signals and transmitting the video call signals to the first user terminal and the second user terminal for display through the wireless call host.
The first user terminal and the second user terminal also comprise a video playing unit, and the video playing unit is used for playing the video call signal transmitted by the wireless call host. The video image information of the visitor is acquired by the manager and the fixed user through the video call signal, so that the call level of the multi-party call device is improved.
Optionally, the processing unit is configured to perform enhancement processing on the voice call signal received by the receiving unit, and specifically includes:
1) framing and windowing the voice call signal acquired by the receiving unit, wherein the voice signal comprises a voice call signal transmitted to the wireless call host by the elevator terminal, the first user terminal and the second user terminal;
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:
in the formula, | N (i, j) | represents the noise spectrum estimation of the voice call signal of the current frame, i represents the current frame number, j represents the frequency level, | X (i, j) | represents the 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 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, β represents the set tolerance adjusting parameter, μ represents the set compensation parameter, and T (| N (i, j) |) represents the transition evaluation parameter, wherein | N (i, j) |) represents the transition evaluation 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
M1, 2, M represents the set adaptive frame number.
In the above embodiment, the wireless communication host is further provided with a special processing unit for performing enhancement processing on the voice communication signal transmitted by the wireless communication host, so as to improve the quality of the voice communication signal transmitted by each party in the multi-party communication process.
Wherein, the collection environment of the voice call signal transmitted by the elevator terminal, the second service terminal and the third service terminal is usually indoor, and the signal-to-noise ratio of the voice call signal collected indoors is higher, so that the conventional enhancement processing technical scheme is easy to have the situation that the voice call signal is distorted due to the phenomenon of over-processing when the enhancement processing is performed on the voice call signal, therefore, the above embodiment provides a technical scheme for enhancing the voice call signal with high signal-to-noise ratio based on the framing frequency spectrum processing of the voice call signal, and provides a noise amplitude frequency spectrum estimation function with high signal change response speed based on the characteristic that the noise influence of the voice call signal with high signal-to-noise ratio is not obvious, and can perform instant processing on the burst noise influence received in the signal transmission process, therefore, the influence of noise on the voice communication signal in the transmission process is effectively filtered, and the definition of the voice communication signal is improved.
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. A digital multi-party call device supporting an elevator entrance guard function is characterized by comprising an elevator terminal, a first user terminal, a second user terminal, a wireless call host and an entrance guard control terminal;
the elevator terminal, the first user terminal and the second user terminal are respectively connected with the wireless communication host;
the elevator terminal is used for sending a call request to the first user terminal through the wireless communication host, and establishing communication connection with the first user terminal through the wireless communication host after the first user terminal answers the call request;
the first user terminal is used for sending a call request to the second user terminal through the wireless call host, so that the second user terminal is added to the current call after answering the call request; and the access control terminal is used for sending an authority control instruction to the access control terminal;
and the access control terminal is used for controlling the elevator access control system to open corresponding control authority according to the received authority control instruction.
2. The digital multi-party call device supporting the elevator entrance guard function according to claim 1, wherein the elevator terminal comprises a call module and a call module;
the calling module is used for sending a calling request to the first user terminal;
the call module is used for establishing call connection with the wireless call host, and after the call connection is established between the first user terminal and the wireless call host, the call module establishes call with the first user terminal.
3. The digital multi-party call device supporting the elevator entrance guard function as claimed in claim 1, wherein the first user terminal comprises a control module, wherein:
the control module is used for selecting a corresponding floor and sending a corresponding authority control instruction to the access control terminal according to the selected floor.
4. The digital multi-party call device supporting the elevator entrance guard function according to claim 1, wherein the wireless call host comprises a receiving unit and a mixing processing unit, wherein:
the receiving unit is used for respectively receiving voice call signals sent by the elevator terminal, the first user terminal and the second user terminal;
the sound mixing processing unit is used for carrying out sound mixing processing according to the voice call signals respectively sent by the elevator terminal, the first user terminal and the second user terminal, and sending the voice call signals after sound mixing to the corresponding elevator terminal, the first user terminal and the second user terminal.
5. The digital multi-party call device supporting the elevator entrance guard function according to claim 1, wherein the wireless call host further comprises a processing unit, wherein:
the processing unit is used for enhancing the voice call signal received by the receiving unit and sending the voice call signal after enhancement processing to the sound mixing processing unit.
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