CN112968999B - Digital-analog mixed elevator multi-party call device - Google Patents
Digital-analog mixed elevator multi-party call device Download PDFInfo
- Publication number
- CN112968999B CN112968999B CN202110208484.9A CN202110208484A CN112968999B CN 112968999 B CN112968999 B CN 112968999B CN 202110208484 A CN202110208484 A CN 202110208484A CN 112968999 B CN112968999 B CN 112968999B
- Authority
- CN
- China
- Prior art keywords
- terminal
- call
- digital
- image
- manager
- 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
Links
Images
Classifications
-
- 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
- H04M3/42221—Conversation recording systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention provides a digital-analog mixed elevator multi-party call device, which comprises a digital-analog mixed call terminal, a machine room terminal and a management center terminal, wherein the digital-analog mixed call terminal is connected with the machine room terminal; the digital-analog mixed call terminal, the machine room terminal and the management center terminal are connected in sequence; the machine room terminal is used for transferring the call data between the digital-analog mixed call terminal and the management center terminal; the management center terminal comprises a call module, an authority control module and a storage module; the call module is used for being connected with the machine room terminal; the storage module is used for storing the conversation content of the conversation between the digital-analog mixed conversation terminal and the management center line terminal; the authority control module is used for controlling the management authority of the storage module. Through setting up storage module storage conversation content for after the accident appears, elevator managers can carry out the rerank to the rescue process of whole accident, makes things convenient for managers to discover not enough in the rescue process.
Description
Technical Field
The invention relates to the field of communication, in particular to a digital-analog hybrid elevator multi-party communication device.
Background
The elevator multi-party call generally refers to the call between five parties, namely a management center host, an elevator car, an elevator machine room extension, an elevator top and an elevator shaft bottom. In the prior art, the storage and management of the multi-party call content of the elevator are generally not performed, so that the whole rescue process cannot be repeated after an accident occurs, and the defects in the rescue process are discovered.
Disclosure of Invention
In view of the above problems, the present invention provides a digital-analog hybrid elevator multi-party call device, which includes a digital-analog hybrid call terminal, a machine room terminal and a management center terminal;
the digital-analog mixed call terminal, the machine room terminal and the management center terminal are connected in sequence;
the digital-analog mixed communication terminal comprises a communication antenna and a terminal body; the communication antenna is arranged at the top of the terminal body; the terminal body comprises a protective shell, a control chip, a display screen, a control key, a microphone and a loudspeaker;
the communication antenna is arranged at the top of the protective shell and connected with the control chip;
the control chip is respectively connected with the display screen, the control key, the microphone and the loudspeaker;
the machine room terminal is used for transferring the call data between the digital-analog mixed call terminal and the management center terminal;
the management center terminal comprises a call module, an authority control module and a storage module;
the call module is used for being connected with the machine room terminal;
the storage module is used for storing the conversation content of the conversation between the digital-analog mixed conversation terminal and the management center line terminal;
the authority control module is used for controlling the management authority of the storage module.
Preferably, the terminal body further comprises a storage battery, and the storage battery is respectively connected with the control chip, the communication antenna, the display screen, the microphone, the control key and the loudspeaker.
Preferably, the control chip and the storage battery are both arranged inside the protective shell;
the display screen and the control keys are arranged on the surface of the protective shell;
the microphone and the loudspeaker are both arranged at the bottom of the protective shell.
Preferably, the digital-analog hybrid call terminal comprises a first call terminal arranged in the elevator, a second call terminal arranged at the top of the elevator and a third call terminal arranged at the bottom of the elevator shaft;
the first call terminal, the second call terminal and the third call terminal are respectively connected with the machine room terminal.
Preferably, the call module comprises a data receiving and sending unit, a call prompting unit and a call unit;
the data receiving and sending unit is used for communicating with the management center terminal and starting the call prompting unit after receiving the call data sent by the management center terminal;
the call prompting unit is used for playing a pre-stored prompting sound;
the communication unit is used for converting the communication data into voice to broadcast and collecting voice data of personnel using the communication unit.
Compared with the prior art, the invention has the advantages that:
according to the elevator multi-party call device, the storage module is arranged to store call contents, so that elevator managers can repeat the rescue process of the whole accident after the accident occurs, and the managers can conveniently find the defects in the rescue process.
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 diagram of an exemplary embodiment of a digital-analog hybrid call terminal according to the present invention.
Fig. 2 is a diagram of an exemplary embodiment of a digital-analog hybrid elevator multi-party call device of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in the embodiments in fig. 1 and fig. 2, the present invention provides a digital-analog hybrid elevator multi-party call device, which includes a digital-analog hybrid call terminal, a machine room terminal and a management center terminal;
the digital-analog mixed call terminal, the machine room terminal and the management center terminal are connected in sequence;
the digital-analog mixed communication terminal comprises a communication antenna 1 and a terminal body 2; the communication antenna 1 is arranged at the top of the terminal body 2; the terminal body 2 comprises a protective shell 21, a control chip (not shown in the figure), a display 22, a control key 23, a microphone (not shown in the figure) and a loudspeaker (not shown in the figure);
the communication antenna 1 is arranged at the top of the protective shell 21 and connected with the control chip;
the control chip is respectively connected with the display screen 22, the control key 23, the microphone and the loudspeaker;
the machine room terminal is used for transferring the call data between the digital-analog mixed call terminal and the management center terminal;
the management center terminal comprises a call module, an authority control module and a storage module;
the call module is used for being connected with the machine room terminal;
the storage module is used for storing the conversation content of the conversation between the digital-analog mixed conversation terminal and the management center line terminal;
the authority control module is used for controlling the management authority of the storage module.
The communication modes between the digital-analog mixed communication terminal and the machine room terminal comprise an analog communication mode and a digital communication mode.
And the call content is stored in a recording mode.
Preferably, the terminal body 2 further includes a storage battery, and the storage battery is connected to the control chip, the communication antenna 1, the display screen 22, the microphone, the control key 23, and the speaker, respectively.
Preferably, the control chip and the storage battery are both arranged inside the protective shell 21;
the display screen 22 and the control keys 23 are both arranged on the surface of the protective shell 21;
the microphone and the speaker are both disposed at the bottom of the protective case 21.
Preferably, the digital-analog hybrid call terminal comprises a first call terminal arranged in the elevator, a second call terminal arranged at the top of the elevator and a third call terminal arranged at the bottom of the elevator shaft;
the first call terminal, the second call terminal and the third call terminal are respectively connected with the machine room terminal.
Preferably, the call module comprises a data receiving and sending unit, a call prompting unit and a call unit;
the data receiving and sending unit is used for communicating with the management center terminal and starting the call prompting unit after receiving the call data sent by the management center terminal;
the call prompting unit is used for playing a pre-stored prompting sound;
the communication unit is used for converting the communication data into voice to broadcast and collecting voice data of personnel using the communication unit.
Preferably, the storage module comprises a storage submodule and a management submodule;
the storage submodule is used for storing the call content; the management submodule is used for managing the call content in the storage submodule;
and the management comprises the steps of retrieving all the stored call contents in the storage submodule according to the retrieval conditions and deleting the call contents stored in the storage submodule.
Preferably, the controlling the management authority of the storage module includes:
carrying out identity authentication on a manager using the management submodule, and allowing the manager to use the management submodule if the manager passes the identity authentication; otherwise, the manager is not allowed to use the management submodule.
After the authority control is carried out, the malicious deletion of the call content stored in the storage submodule can be avoided, and therefore the data safety of the elevator multi-party call device is guaranteed.
Preferably, the identity verification of the manager who uses the management submodule includes:
acquiring a head image of the manager;
cutting the head image to obtain a face image only containing the face skin part of the manager;
carrying out gray processing on the face image to obtain a gray image;
carrying out noise reduction processing on the gray level image to obtain a noise reduction image;
enhancing the noise-reduced image to obtain an enhanced image;
acquiring feature data contained in the enhanced image;
and matching the characteristic data with the pre-stored characteristic data of the personnel using the management submodule, wherein if the matching is successful, the manager passes the identity authentication, otherwise, the manager does not pass the identity authentication.
Preferably, the cutting the head image to obtain a face image containing only a face skin portion of the manager includes:
performing skin color detection on the head image, acquiring skin color pixel points, and storing all the skin color pixel points in a set U1；
Obtaining U1Average coordinate (x) of pixel points in (1)ave，yave)：
In the formula, xaAnd yaRespectively represent U1Abscissa and ordinate, numU, of the pixel point a in (1)1Represents U1Total number of pixels in (1), xaveRepresents U1Average value of abscissa, y, of pixel points in (1)aveRepresents U1Average value of the vertical coordinates of the pixel points in (1);
foreground segmentation is carried out on the head image to obtain foreground pixel points, and all the foreground pixel points are stored in a set U2；
Calculate U2Pixel point of (c) and (x)ave，yave) The Euclidean distance between the U and the U is less than a preset distance threshold value2In (3) the pixel points are stored into a set U3Performing the following steps;
to U1And U3Taking the union set to obtain a set U4；
Will be set U4The pixels in (1) form a face image.
If only single skin color detection is performed, due to the influence of light, more cavity points appear in the obtained face image easily, and therefore structural information in the face image is lost seriously. Therefore, the foreground pixel point detection is further performed. If simply put U on1And U2Get the union, then can lead to the pixel in the hair region that is difficult to remove to be added in again, wrong face's pixel also can increase moreover, consequently, this application is through to U2Pixel point of (3) and U1Judging U by the distance between the average coordinates of the pixel points in2Whether the pixel points in (2) can be added into the set U3In (3), if the distance is too large, it means U2The middle pixel point is too far away from the skin color pixel point, so that the middle pixel point cannot be added into the set U3In (1). Thus, passing through U2The hole points caused by skin color detection are filled by the pixel points in the face image, and the structural information in the face image is effectively reserved. Thereby providing more detailed information for subsequent identification. And the safety of the management submodule is ensured.
Preferably, the performing noise reduction processing on the grayscale image to obtain a noise-reduced image includes:
carrying out noise point detection on the gray level image to obtain noise point pixel points;
carrying out the following processing on the noise point pixel point to obtain a noise reduction pixel point:
in the formula, azsn (b) represents a noise reduction pixel point nu corresponding to the noise pixel point bbRepresenting a set of pixels in a spatial range of h x h centered on pixel b, j (b, c) representing pixels b and nubCh (b, c) represents the difference of h components of the pixel points corresponding to b and c in the head image in the hsv color space; d1And d2Zsn (c) represents the gray of pixel c as a weight parameterPixel value in degree image, ubc denotes nubThe standard deviation of the euclidean distance between the pixel point of (a) and the pixel point b,
numnubrepresentation nubThe total number of elements in (a) is,
abo (b) denotes nubHas a pixel value greater than nubThe number of pixels of the pixel value average in (a), (b), (c) represents a set nu composed of pixels in a spatial range of h × h centered on the pixel ccThe number of the pixels with the pixel values larger than the average value of the pixel values of all the pixels in the space range;
and after all the noise point pixel points in the gray level image are processed, a noise reduction image is obtained.
The traditional denoising processing is generally global denoising, namely denoising processing is carried out on all pixel points, the processing mode easily causes the loss of edge information in an image, and the difference between the currently calculated pixel points and the pixel points in the neighborhood of the currently calculated pixel points in the aspects of Euclidean distance, h component, the number of the pixel points larger than the pixel mean value and the like is considered when denoising, so that more detailed information can be kept after denoising. Particularly, the difference of the h component is set, so that the influence that detail information is not obvious due to uneven illumination can be well reduced.
Preferably, the enhancing the noise-reduced image to obtain an enhanced image includes:
processing the gray level image by using a Prewitt algorithm to obtain a first image;
storing the pixel points in the first image in a set fiU;
for a pixel point fi in the first image, the distance between fi and each pixel point except fi in fiUStore-leave collection diUfiObtaining diUfiIf the average value avemi of the 3 elements with the minimum median value is smaller than a preset average value threshold value, the following detection is carried out on fi:
performing convolution calculation on pixel points fi in a first image by using edge detection operators with different detection angles respectively to obtain convolution results, and taking the detection angle corresponding to the minimum convolution result as the edge angle of the pixel point;
calculating the gradient angle of the pixel point;
calculating a difference value between the edge angle and the gradient angle, and if the difference value is smaller than a preset difference threshold value, storing fi in a set bjU;
and performing enhancement processing on the noise-reduced image by using the pixel points in bjU:
str(bju)＝gray(bju)+β×graynei(bju)
in the formula, str (bju) represents the pixel value of bjU after the corresponding pixel point bju in the noise-reduced image is enhanced, β represents a control parameter, and graynei (bju) represents the mean value of the pixel values of 8 neighborhood pixels of the corresponding pixel point bju in bjU in the noise-reduced image;
after the above enhancement processing is performed on the noise-reduced image using all the pixel points in bjU, an enhanced image is obtained.
fiU, most of the pixels are edge pixels, but there are some pixels far from the cluster center fiU, so we need to filter these pixels. First, the value of the average value of the currently calculated pixel point and other pixel points over 3 minimum spatial distances is considered. If the average value is too large, it indicates that the currently calculated pixel is far from the cluster center of fiU, and therefore, filtering is required. However, not all the pixels closer to the clustering center are edge pixels, sometimes some independent pixels not connected to the edge pixels are generated near the edge pixels, and the pixels do not belong to real edge pixels, so that whether the pixel is an independent pixel is afraid of being warmed through calculation of the edge angle and the gradient angle of the pixel. After the noise-reduced image is enhanced by using the pixel points in fiU, the obtained enhanced image has more obvious edges, which is beneficial to reserving more features for subsequent identification.
Preferably, the different angles include 0 degrees, 45 degrees, 90 degrees, 135 degrees. The edge detection operator comprises an edge detection operator in a sobel detection algorithm.
Preferably, the clustering center is an average value of coordinates of the clustering centers obtained by clustering the pixel points in fiU by using a K-means clustering algorithm when the number of the clustering centers is 2.
While embodiments of the invention have been shown and described, it will be understood by those skilled in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. A digital-analog mixed elevator multi-party call device is characterized by comprising a digital-analog mixed call terminal, a machine room terminal and a management center terminal;
the digital-analog mixed call terminal, the machine room terminal and the management center terminal are connected in sequence;
the digital-analog mixed communication terminal comprises a communication antenna and a terminal body; the communication antenna is arranged at the top of the terminal body; the terminal body comprises a protective shell, a control chip, a display screen, a control key, a microphone and a loudspeaker;
the communication antenna is arranged at the top of the protective shell and connected with the control chip;
the control chip is respectively connected with the display screen, the control key, the microphone and the loudspeaker;
the machine room terminal is used for transferring the call data between the digital-analog mixed call terminal and the management center terminal;
the management center terminal comprises a call module, an authority control module and a storage module;
the call module is used for being connected with the machine room terminal;
the storage module is used for storing the conversation content of the conversation between the digital-analog mixed conversation terminal and the management center line terminal;
the authority control module is used for controlling the management authority of the storage module;
controlling the management authority of the storage module, comprising:
carrying out identity authentication on a manager using the management submodule, and allowing the manager to use the management submodule if the manager passes the identity authentication; otherwise, the manager is not allowed to use the management submodule;
after the authority control is carried out, the malicious deletion of the call content stored in the storage submodule can be avoided, so that the data security of the elevator multi-party call device is ensured;
identity verification is carried out on the manager using the management submodule, and the method comprises the following steps:
acquiring a head image of the manager;
cutting the head image to obtain a face image only containing the face skin part of the manager;
carrying out gray processing on the face image to obtain a gray image;
carrying out noise reduction processing on the gray level image to obtain a noise reduction image;
enhancing the noise-reduced image to obtain an enhanced image;
acquiring feature data contained in the enhanced image;
matching the characteristic data with pre-stored characteristic data of personnel using the management submodule, wherein if the matching is successful, the manager passes identity authentication, otherwise, the manager does not pass identity authentication;
cutting the head image to obtain a face image only containing the face skin part of the manager, wherein the face image comprises:
performing skin color detection on the head image, acquiring skin color pixel points, and performing skin color detection on all the skin color pixel pointsInto a set U1；
Obtaining U1Average coordinate (x) of pixel points in (1)ave，yave)：
In the formula, xaAnd yaRespectively represent U1Abscissa and ordinate, numU, of the pixel point a in (1)1Represents U1Total number of pixels in (1), xaveRepresents U1Average value of abscissa, y, of pixel points in (1)aveRepresents U1Average value of the vertical coordinates of the pixel points in (1);
foreground segmentation is carried out on the head image to obtain foreground pixel points, and all the foreground pixel points are stored in a set U2；
Calculate U2Pixel point of (c) and (x)ave，yave) The Euclidean distance between the U and the U is less than a preset distance threshold value2In (3) the pixel points are stored into a set U3Performing the following steps;
to U1And U3Taking the union set to obtain a set U4；
Will be set U4The pixels in (1) form a face image.
2. The digital-analog hybrid elevator multi-party call device according to claim 1, wherein the terminal body further comprises a storage battery, and the storage battery is respectively connected with the control chip, the communication antenna, the display screen, the microphone, the control button and the speaker.
3. The digital-analog hybrid elevator multi-party call device as claimed in claim 2, wherein the control chip and the storage battery are both disposed inside the protective casing;
the display screen and the control keys are arranged on the surface of the protective shell;
the microphone and the loudspeaker are both arranged at the bottom of the protective shell.
4. The digital-analog hybrid elevator multi-party call device according to claim 1, wherein the digital-analog hybrid call terminal comprises a first call terminal disposed in an elevator, a second call terminal disposed at the top of the elevator, and a third call terminal disposed at the bottom of an elevator shaft;
the first call terminal, the second call terminal and the third call terminal are respectively connected with the machine room terminal.
5. The digital-analog hybrid elevator multi-party call device according to claim 1, wherein the call module comprises a data transceiving unit, a call prompting unit and a call unit;
the data receiving and sending unit is used for communicating with the management center terminal and starting the call prompting unit after receiving the call data sent by the management center terminal;
the call prompting unit is used for playing a pre-stored prompting sound;
the communication unit is used for converting the communication data into voice to broadcast and collecting voice data of personnel using the communication unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110208484.9A CN112968999B (en) | 2021-02-25 | 2021-02-25 | Digital-analog mixed elevator multi-party call device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110208484.9A CN112968999B (en) | 2021-02-25 | 2021-02-25 | Digital-analog mixed elevator multi-party call device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112968999A CN112968999A (en) | 2021-06-15 |
| CN112968999B true CN112968999B (en) | 2021-11-12 |
Family
ID=76285995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110208484.9A Active CN112968999B (en) | 2021-02-25 | 2021-02-25 | Digital-analog mixed elevator multi-party call device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112968999B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104077579B (en) * | 2014-07-14 | 2017-07-04 | 上海工程技术大学 | Facial expression recognition method based on expert system |
| CN205739811U (en) * | 2016-05-12 | 2016-11-30 | 温州墨熵微电子有限公司 | A kind of elevator Internet of Things is met an urgent need communicator |
| CN107633229A (en) * | 2017-09-21 | 2018-01-26 | 北京智芯原动科技有限公司 | Method for detecting human face and device based on convolutional neural networks |
| CN108275547A (en) * | 2018-01-24 | 2018-07-13 | 常州海德克智能科技有限公司 | A kind of elevator emergency communications management system and method |
| CN110113079B (en) * | 2019-05-29 | 2024-04-26 | 南京市特种设备安全监督检验研究院 | Elevator emergency call system and control method |
-
2021
- 2021-02-25 CN CN202110208484.9A patent/CN112968999B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112968999A (en) | 2021-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20060147093A1 (en) | ID card generating apparatus, ID card, facial recognition terminal apparatus, facial recognition apparatus and system | |
| CN108509902B (en) | Method for detecting call behavior of handheld phone in driving process of driver | |
| CN110084135A (en) | Face identification method, device, computer equipment and storage medium | |
| CN108335396A (en) | A kind of artificial intelligence visitor management system with Car license recognition | |
| CN113752983B (en) | Vehicle unlocking control system and method based on face recognition/eye recognition | |
| WO2014186422A1 (en) | Image masks for face-related selection and processing in images | |
| CN108877009B (en) | Intelligent access control system based on face recognition | |
| CN108986342B (en) | Face recognition locker system based on cloud computing platform | |
| CN111209820B (en) | Face living body detection method, system, equipment and readable storage medium | |
| CN111798635A (en) | Building intelligent security system | |
| US20050058369A1 (en) | Apparatus, method and program for generating photo card data | |
| CN112968999B (en) | Digital-analog mixed elevator multi-party call device | |
| US11978231B2 (en) | Wrinkle detection method and terminal device | |
| JP4619762B2 (en) | Image processing method, apparatus, and program | |
| CN113256673A (en) | Intelligent wrinkle removing system based on infrared laser | |
| CN115620117B (en) | Face information encryption method and system for network access authority authentication | |
| CN112565674A (en) | Exhibition hall central control system capable of realizing remote video monitoring and control | |
| CN110427907B (en) | Face recognition preprocessing method for gray level image boundary detection and noise frame filling | |
| CN111310703A (en) | Identity recognition method, device, equipment and medium based on convolutional neural network | |
| CN111899436A (en) | Intelligent chemical storage cabinet | |
| CN111417982B (en) | Color spot detection method and electronic equipment | |
| CN107229927B (en) | Face detection anti-cheating method | |
| JP2005084979A (en) | Face authentication system, method and program | |
| CN113609998A (en) | Bottom layer spot detection method, electronic device and readable storage medium | |
| CN112070956A (en) | Identity recognition system based on face image |
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 |