CN108429570B - Digital-analog mixed five-party intercom system - Google Patents
Digital-analog mixed five-party intercom system Download PDFInfo
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- CN108429570B CN108429570B CN201810207996.1A CN201810207996A CN108429570B CN 108429570 B CN108429570 B CN 108429570B CN 201810207996 A CN201810207996 A CN 201810207996A CN 108429570 B CN108429570 B CN 108429570B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/60—Systems for communication between relatively movable stations, e.g. for communication with lift
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- 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
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- 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
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
The invention discloses a digital-analog mixed five-party intercom system, which comprises four intercom extension sets of a machine room, an A/D conversion module and a management center module, it is characterized in that the machine room intercom extension is matched with a first power supply module, a car top extension, a car cage extension and a pit bottom extension, the output end of the first power supply module is connected with the machine room intercom extension, the car top extension, the car cage extension and the pit bottom extension, the machine room intercom extension, the car top extension, the car cage extension and the pit bottom extension are sequentially connected with one another, the A/D conversion module is used for converting an input analog signal into an output digital signal, the output end of the A/D conversion module is connected with four machine room intercom extension sets, the management center module comprises a management center host, a management host, a mobile handset, a management center computer and a second power supply module. The invention has the advantages of flexible networking, stable communication, clear voice, strong expansibility, long transmission distance, low power consumption, low failure rate and the like.
Description
Technical Field
The invention relates to the technical field of five-party talkback, in particular to a digital-analog hybrid five-party talkback system.
Background
Although many elevators used in the market begin to use the five-way intercom system, the traditional five-way intercom system using analog signals has poor conversation quality and is easy to be interfered, and circuits must be accessed independently, so that great circuit waste is caused if the number of the elevators is large, and the elevators are not easy to overhaul; digital signal processing is expensive, complex in wiring and high in cost. In view of the above, the present invention develops a digital-analog hybrid five-way intercom system, which can solve the above-described common problem that is not easy to solve.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a digital-analog hybrid five-party intercom system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the digital-analog hybrid five-party intercom system comprises four machine room intercom extensions, an analog-to-digital (A/D) conversion module and a management center module, and is characterized in that the machine room intercom extensions are matched with a first power supply module, a car top extension, a car cage extension and a pit bottom extension, the output end of the first power supply module is connected with the machine room intercom extensions, the car top extension, the car cage extension and the pit bottom extension in a homogeneous mode, the machine room intercom extensions, the car top extension, the car cage extension and the pit bottom extension are sequentially connected with one another, the A/D conversion module is used for converting an input analog signal into an output digital signal, the output end of the A/D conversion module is connected with the four machine room intercom extensions in a homogeneous mode, the management center module comprises a management center host, a management host, a mobile handset, a management center computer and a second power supply module, and the management center host, The management host and the mobile handset are connected in sequence, the A/D conversion module is connected with the management center host, the management center computer is connected with the management center host, and the management center host and the management host are both connected with the output end of the second power supply module.
Preferably, the a/D conversion module is configured to perform interconversion between the analog voice signal and the digital voice signal, perform centralized processing on the analog signals sent by the four machine room modules, and then convert the analog signals into digital signals and transmit the digital signals to the processing center.
Preferably, the machine room intercom extension, the car top extension, the car cabin extension and the pit bottom extension are all connected through two-core CAN communication buses, the two-core CAN buses are used for coding, decoding and networking transmission of voice data, and the car cabin extension is provided with a camera.
Preferably, the output end of the first power supply module is connected with the intercom extension of the machine room, the car top extension, the car extension camera and the pit bottom extension through power lines, and the management center host and the management host are connected with the output end of the second power supply module through power lines.
Preferably, the first power supply module and the second power supply module are both 12-24V power supplies.
Preferably, the management center computer is connected with the management center host through a USB cable.
The invention has the beneficial effects that: the digital-analog mixed five-party intercom system is an intercom system for converting an analog voice signal and a digital voice signal, not only makes up for the defects of an analog voice signal transmission mode, but also overcomes the defect of digital voice signal transmission. The traditional elevator simulation talkback wiring is complicated, the signal is unstable, the transmission process is easy to make mistakes, if upgrade the system, it is with high costs, waste time and energy. The system adopts advanced voice processing technology and CAN bus communication technology (the end which outputs digital signals is in CAN bus mode) to carry out coding, decoding and networking transmission of voice data, and the product has the advantages of flexible networking, stable communication, clear voice, strong expansibility, long transmission distance, low power consumption, low failure rate and the like.
Drawings
Fig. 1 is a schematic structural diagram of a digital-analog hybrid five-party intercom system provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a digital-analog hybrid five-party intercom system comprises four machine room intercom extensions, an a/D conversion module and a management center module, and is characterized in that the machine room intercom extensions are matched with a first power supply module, a car top extension, a car cage extension and a pit bottom extension, the output end of the first power supply module is connected with the machine room intercom extension, the car top extension, the car cage extension and the pit bottom extension, the machine room intercom extension, the car top extension, the car cage extension and the pit bottom extension are sequentially connected with one another, the a/D conversion module is used for converting an input analog signal into an output digital signal, the output end of the a/D conversion module is connected with the four machine room intercom extensions, the management center module comprises a management center host, a management host, a mobile handset, a management center computer and a second power supply module, the management center host, the management host and the mobile handset are connected in sequence, the A/D conversion module is connected with the management center host, the management center computer is connected with the management center host, and the management center host and the management host are both connected with the output end of the second power supply module.
In the embodiment, the A/D conversion module can be placed near each elevator according to the requirement, only a section of line is led out from each elevator and is connected to the port of the A/D converter (one end of one A/D converter can be connected with 4 lines simultaneously), and the placement of the A/D conversion module follows the principle of being nearby. Without the a/D converter, each elevator entrance to the general control room needs to deploy a separate line, and go through the same line, which results in waste of wire. The A/D converter is arranged, wiring is not needed to be repeatedly done for each elevator, the output end of the A/D conversion module converts an analog signal into a digital signal to be output, in this time, the output signal does not need to pass through 4 lines, only one bus is needed to be output, the wiring amount of four lines is reduced to one line, the wiring amount is shortened, the wiring material is greatly saved, the cost is reduced, meanwhile, the elevator fault detection and maintenance are facilitated, the time is saved, the inconvenience is reduced, and the maximum benefit can be realized at the lowest cost.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The digital-analog hybrid five-party intercom system comprises four machine room intercom extensions, an analog-to-digital (A/D) conversion module and a management center module, and is characterized in that the machine room intercom extensions are matched with a first power supply module, a car top extension, a car cage extension and a pit bottom extension, the output end of the first power supply module is connected with the machine room intercom extensions, the car top extension, the car cage extension and the pit bottom extension in a homogeneous mode, the machine room intercom extensions, the car top extension, the car cage extension and the pit bottom extension are sequentially connected with one another, the A/D conversion module is used for converting an input analog signal into an output digital signal, the output end of the A/D conversion module is connected with the four machine room intercom extensions in a homogeneous mode, the management center module comprises a management center host, a management host, a mobile handset, a management center computer and a second power supply module, and the management center host, The management host and the mobile handset are connected in sequence, the A/D conversion module is connected with the management center host, the management center computer is connected with the management center host, and the management center host and the management host are both connected with the output end of the second power supply module.
2. The digital-analog hybrid five-way intercom system according to claim 1, wherein the a/D conversion module is configured to convert analog voice signals and digital voice signals into each other, perform centralized processing on the analog signals sent from the four machine room modules, and convert the analog signals into digital signals to be transmitted to the processing center.
3. The digital-analog hybrid five-party intercom system according to claim 1, wherein the intercom extension of the machine room, the car top extension, the car cage extension and the pit bottom extension are all connected through two-core CAN communication buses, the two-core CAN buses are used for coding, decoding and networking transmission of voice data, and the car cage extension is provided with a camera.
4. The digital-analog hybrid five-party intercom system according to claim 1, wherein the output end of the first power supply module is connected with the intercom extension set of the machine room, the car top extension set, the car extension set camera and the pit bottom extension set through power lines, and the management center host and the management host are connected with the output end of the second power supply module through power lines.
5. The digital-analog hybrid five-way intercom system according to claim 1, wherein the first power supply module and the second power supply module are both 12-24V power supplies.
6. The digital-analog hybrid five-party intercom system according to claim 1, wherein the management center computer is connected with the management center host through a USB cable.
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| CN201810207996.1A CN108429570B (en) | 2018-03-14 | 2018-03-14 | Digital-analog mixed five-party intercom system |
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| CN108429570B true CN108429570B (en) | 2021-04-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109660754A (en) * | 2018-11-09 | 2019-04-19 | 珠海全视通信息技术有限公司 | A kind of digital-to-analogue merges integrated communication system, method and device |
| CN109867185B (en) * | 2019-03-14 | 2021-03-23 | 北京科苑隆科技有限公司 | Five square intercom systems of elevator of bus network deployment |
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