CN111163021B - Data conversion transmission equipment based on two lines - Google Patents
Data conversion transmission equipment based on two lines Download PDFInfo
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- CN111163021B CN111163021B CN202010011324.0A CN202010011324A CN111163021B CN 111163021 B CN111163021 B CN 111163021B CN 202010011324 A CN202010011324 A CN 202010011324A CN 111163021 B CN111163021 B CN 111163021B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/03—Power distribution arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/035—Cooling of active equipments, e.g. air ducts
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
A data conversion transmission device based on two lines comprises an intelligent two-line main controller and an intelligent two-line access device, wherein the intelligent two-line main controller comprises a first power module, a first Ethernet switching module and a first modulation and demodulation module; the intelligent two-wire access device comprises a second power module, a second Ethernet switching module and a second modulation and demodulation module, wherein the second power module is electrically connected with the second Ethernet switching module and the second modulation and demodulation module and is electrically connected with extension equipment, the second Ethernet switching module is in signal connection with the second modulation and demodulation module, the second Ethernet switching module is in signal connection with a plurality of sickbed extension equipment, and the first modulation and demodulation module is in signal connection with the second modulation and demodulation module.
Description
Technical Field
The invention relates to the field of communication equipment, in particular to data conversion transmission equipment based on two lines.
Background
Currently, a medical care talkback special server used in a hospital, a nurse station management platform, a nurse station management machine, data conversion and transmission equipment, sickbed extension equipment in a sickroom and the like need to form a complete communication network.
At present, two common device networking schemes of hospitals comprise a two-wire power carrier scheme and a network cable wiring scheme. The power line carrier (namely, the power supply is carried out on 2 lines and data is transmitted at the same time) products are divided into a low-speed product and a high-speed product, the market is common low-speed products, the transmission bandwidth is very small, and the information transmission requirement in the information era cannot be met; high speed products have a large transmission bandwidth but generate a large amount of heat. Both low and high speed products suffer from the following drawbacks: 1. the module is integrated in each device, so that the cost is high; 2. the heating value is large, and the system is easy to be unstable due to overheating; 3. the device is easily interfered by peripheral signals, thereby resulting in poor signal quality; 4. the whole system is broken down when the equipment is in failure or short circuit; 5. the power is supplied in a centralized manner, the requirement on the power supply is too high, and the power supply is easily burnt out when the host is powered off and restarted (the peak current is too large, and the requirement on the power supply is higher); 6. the two-wire system networking capability is weak, and when a certain number of the two-wire system networking capability is exceeded, one host or relay equipment is required to be added. The network cable networking has the characteristics of high reliability, but the construction amount is huge, the construction period is long, the construction cost is high, the wire consumption is large, the wire cost is high, the interior of the exchange equipment is large, and the cost of the exchange equipment is high.
Disclosure of Invention
The invention provides a two-wire-based data conversion transmission device, which mainly aims to overcome the problems in the prior art.
The invention is realized by adopting the following technical scheme:
a data conversion transmission device based on two lines comprises an intelligent two-line main controller and an intelligent two-line access device, wherein the intelligent two-line main controller comprises a first power module, a first Ethernet switching module and a first modulation and demodulation module; the intelligent two-wire access device comprises a second power module, a second Ethernet switching module and a second modulation and demodulation module, wherein the second power module is electrically connected with the second Ethernet switching module, the second modulation and demodulation module and a plurality of sickbed extension equipment, the second Ethernet switching module is in signal connection with the second modulation and demodulation module, the second Ethernet switching module is in signal connection with the plurality of sickbed extension equipment, and the first modulation and demodulation module is in signal connection with the second modulation and demodulation module through a two-core cable.
The first power supply module supplies power to the first Ethernet switching module and the first modulation and demodulation module; the first Ethernet switching module is used for performing data interaction on a network data packet and superior switching equipment (such as a medical talkback special server, a nurse station management platform and a nurse station management machine) and sending the network data packet to the first modem module; the first modulation and demodulation module is used for transmitting a two-wire digital signal modulated by the network data packet of the first Ethernet switching module to the second modulation and demodulation module of the intelligent two-wire access device, and simultaneously demodulating the data signal modulated by the intelligent two-wire access device into a network data packet and transmitting the network data packet to the superior switching equipment. The second power supply module supplies power to the second Ethernet switching module, the second modulation and demodulation module and each sickbed extension equipment; the second Ethernet switching module is used for exchanging data with the extension equipment of the sickbed and sending a network data packet of the extension equipment of the sickbed to the second modem module; the second modulation and demodulation module is used for demodulating the digital signals of the intelligent two-wire main controller into network data packets and sending the network data packets to the second Ethernet switching module, and meanwhile, the two-wire signals modulated by the second Ethernet switching module are sent to the first modulation and demodulation module of the intelligent two-wire main controller.
Furthermore, the first ethernet switching module is in signal connection with the floor switch through more than five types of network cables and RJ45 interfaces.
Furthermore, the first modem module and the second modem module are connected by RVV2 × 0.75 cable signals.
Furthermore, the second ethernet switching module is in signal connection with each hospital bed extension device through a super-five type cable and an RJ45 interface.
Further, the first power supply module is connected with a 24V power supply line, and the second power supply module is connected with a 12V power supply line.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages: the invention is used as intermediate transmission equipment, integrates the characteristics of simple wiring of two-line carrier waves and high reliability of network networking, and has the following specific advantages:
1. the existing product scheme is that a modem module is integrated in each extension device, application scene devices such as hospitals and communities are relatively dense, and the modem module is integrated on an intelligent two-wire access device, and the other devices are accessed through a standard Ethernet. Such as: four sickbed extension equipment are arranged in one sickroom, four modulation and demodulation modules are needed by adopting the existing product, and only one modulation and demodulation module is needed by the scheme, so that three modulation and demodulation modules are saved.
2. The existing product scheme is integrated in the extension equipment, and the heat of the modem module and the heat of other devices and liquid crystal screens in the extension equipment cause great challenges to the equipment in a relatively limited space. According to the scheme, large heat sources such as a liquid crystal screen are eliminated, the modulation and demodulation module can be independently arranged on the metal shell, heat is reduced better, and the path of emission is increased.
3. Better signal quality, the existing product loads data on a power line, the power itself is an interference source, various electromagnetic waves can interfere with transmitted signals, and meanwhile, the power frequency is higher, and the data are also easily subjected to signal crosstalk of the same frequency at the periphery. The scheme only uses two lines to modulate and demodulate data, is not interfered by a power supply, and can provide signals with higher quality.
4. The bus short circuit system is normally used, the conventional product supplies power through the main control equipment, so that when the node is short-circuited to cause the whole system to be broken down, the data modulation and demodulation are carried out by using two lines, and when the node is short-circuited or broken down, only the node is influenced, and the system is not broken down.
5. Distributed generator reliability is higher more stable, and current product is unified through the two lines through main control equipment and is transmitted, and it is too big to power on peak current again after the equipment outage, all has very high requirement to cable and power. And the present case uses distributed power supply, is not so high requirement to cable and power, and intelligence two line access ware is still supplied power for extension equipment simultaneously independently, only influences the equipment of intelligence two line access ware part when power failure, can not cause the system paralysis.
6. The maximum networking capacity of one main control device of the existing product is a peak value, and the maximum networking capacity is 15 terminal devices, and the network expansion is realized by adding the main control devices after the number of the terminal devices exceeds the number of the terminal devices, while the maximum networking capacity of a single intelligent two-wire main controller in the scheme is 45 intelligent two-wire access devices, and each intelligent two-wire access device can expand 4, 8, 16, 24 and 48 Ethernet ports, namely the maximum terminal can realize 45 × 48=2160 network devices.
7. The scheme is used as an intermediate transmission device, has higher compatibility, can be connected to conventional network equipment, and is not like the existing product and can only be used in own equipment. Meanwhile, the equipment has lower networking cost and faster deployment time.
Drawings
Fig. 1 is a system configuration diagram of the present invention.
Fig. 2 is a block diagram of an intelligent two-wire master of the present invention.
Fig. 3 is a constitutional view of the intelligent two-wire access device of the present invention.
Fig. 4 is a system networking diagram of the present invention.
Detailed Description
Refer to fig. 1 to 3. A two-wire based data conversion transmission device comprises an intelligent two-wire master controller 1 and an intelligent two-wire access device 2. The intelligent two-wire master controller 1 comprises a first power module 11, a first Ethernet switching module 12 and a first modulation and demodulation module 13, wherein the first power module 11 is electrically connected with the first Ethernet switching module 12 and the first modulation and demodulation module 13, the first Ethernet switching module 12 is in signal connection with the first modulation and demodulation module 13, and the first Ethernet switching module 12 is in signal connection with a floor switch 3. The intelligent two-wire access device 2 comprises a second power module 21, a second Ethernet switching module 22 and a second modulation and demodulation module 23, the second power module 21 is electrically connected with the second Ethernet switching module 22, the second modulation and demodulation module 23 and a plurality of sickbed extension devices 4, the second Ethernet switching module 22 is in signal connection with the second modulation and demodulation module 23, the second Ethernet switching module 22 is in signal connection with the plurality of sickbed extension devices 4, and the first modulation and demodulation module 13 is in signal connection with the second modulation and demodulation module 23 through a two-core cable.
Refer to fig. 1 to 4. The first power supply module 11 supplies power to the first ethernet switching module 12 and the first modem module 13; the first ethernet switching module 12 is configured to perform data interaction between a network data packet and a superior switching device (such as a medical care talkback dedicated server, a nurse station management platform, and a nurse station management machine), and send the network data packet to the first modem module 13; the first modem module 13 modulates the network data packet of the first ethernet switch module 12 into a two-wire digital signal, and sends the two-wire digital signal to the second modem module 23 of the intelligent two-wire access device 2, and simultaneously demodulates the data signal modulated by the intelligent two-wire access device 2 into a network data packet, and sends the network data packet to the superior switch device. The second power module 21 supplies power to the second ethernet switching module 22, the second modem module 23, and each hospital bed extension apparatus 4; the second ethernet switching module 22 is configured to perform data exchange with the hospital bed extension device 4, and simultaneously send a network data packet of the hospital bed extension device to the second modem module 23; the second modem module 23 is configured to demodulate the digital signal of the intelligent two-wire master 1 into a network data packet, send the network data packet to the second ethernet switch module 22, and send the two-wire signal modulated by the second ethernet switch module 22 to the first modem module 13 of the intelligent two-wire master 1.
Refer to fig. 1 to 3. The first ethernet switching module 12 is in signal connection with the floor switch 3 through more than five types of network cables and RJ45 interfaces. The first modem module 13 and the second modem module 23 are connected by a cable signal with model RVV2 × 0.75. The second ethernet switching module 22 is in signal connection with each bed extension apparatus 4 through a category-five cable and an RJ45 interface. The first power module 11 is connected to a 24V power line, and the second power module 21 is connected to a 12V power line. The intelligent two-wire master controller 1 and the intelligent two-wire access device 2 are further provided with DC-DC converters, the first power module 11, the first ethernet switching module 12 and the first modem module 13 are connected to corresponding DC-DC converters, and the second power module 21, the second ethernet switching module 22 and the second modem module 23 are connected to corresponding DC-DC converters, so that the working voltages of the first ethernet switching module, the first modem module 13, the second ethernet switching module 22 and the second modem module 23 are 3.3V.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (5)
1. A two-wire based data conversion transmission apparatus, characterized in that: the intelligent two-wire main controller comprises a first power module, a first Ethernet switching module and a first modulation and demodulation module, wherein the first power module is electrically connected with the first Ethernet switching module and the first modulation and demodulation module; the intelligent second-line access device comprises a second power module, a second Ethernet switching module and a second modulation and demodulation module, wherein the second power module is electrically connected with the second Ethernet switching module, the second modulation and demodulation module and a plurality of sickbed extension devices, the second Ethernet switching module is in signal connection with the second modulation and demodulation module, the second Ethernet switching module is in signal connection with the plurality of sickbed extension devices, and the first modulation and demodulation module is in signal connection with the second modulation and demodulation module through a two-core cable.
2. A two-wire based data conversion transmission apparatus as claimed in claim 1, wherein: and the first Ethernet switching module is in signal connection with the floor switch through more than five types of network cables and RJ45 interfaces.
3. A two-wire based data conversion transmission apparatus as claimed in claim 1, wherein: the first modulation and demodulation module and the second modulation and demodulation module are connected through RVV2 × 0.75 cable signals.
4. A two-wire based data conversion transmission device according to claim 1, wherein: and the second Ethernet switching module is in signal connection with each hospital bed extension equipment through a super-five type wire and an RJ45 interface.
5. A two-wire based data conversion transmission device according to claim 1, wherein: the first power supply module is connected with a 24V power line, and the second power supply module is connected with a 12V power line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010011324.0A CN111163021B (en) | 2020-01-06 | 2020-01-06 | Data conversion transmission equipment based on two lines |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010011324.0A CN111163021B (en) | 2020-01-06 | 2020-01-06 | Data conversion transmission equipment based on two lines |
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| CN111163021A CN111163021A (en) | 2020-05-15 |
| CN111163021B true CN111163021B (en) | 2022-05-27 |
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