CN219812164U

CN219812164U - Redundant switch

Info

Publication number: CN219812164U
Application number: CN202320450398.3U
Authority: CN
Inventors: 李鸿; 李丰华
Original assignee: Wondertek Technology Kunshan Co ltd
Current assignee: Wondertek Technology Kunshan Co ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-10-10
Anticipated expiration: 2033-03-10

Abstract

The utility model discloses a redundant switch and a plurality of Ethernet data interfaces, wherein the Ethernet data interfaces comprise two redundant Ethernet interfaces, and the Ethernet data interfaces support four-channel PSE POE AF/AT to supply power to PD equipment; and the integrated double-circuit power supply comprises a first direct current power supply port and a second direct current port. By adopting the technology provided by the utility model, redundancy is reduced while low time delay and high bandwidth are realized.

Description

Redundant switch

Technical Field

The utility model relates to the technical field of communication, in particular to a redundant switch.

Background

Along with the further acceleration of intelligent intelligence, mechanization and intelligence become the most basic guarantee of synergy of enterprises; the further individuation, the subdivision and the high timeliness of the exchange period of the social consumption demands enable the process link of the whole product to be intelligent and the daily necessities to be increased. In industrial environments, such as railways, mineral products, airports, subways, coal mines, intelligent storage, industrial automation control, intelligent garages and other sites, the requirements on the reliability of an industrial control network are high.

In the prior art, the following two ways are adopted to cope with the working environment:

1. a plurality of switches are adopted to form a switch system, and the switch and redundancy are processed, for example, chinese patent publication CN107995106A discloses an industrial Ethernet (Ethernet) switch redundancy ring system, which comprises a main switch and five slave switches, wherein the main switch and the five slave switches are sequentially and circularly connected by using WDTRING protocol to form a ring link, and the slave switches start from the main switch to form a main link together with a plurality of slave switches along one side of the ring link and form backup links together with other slave switches along the other side of the ring link. In the mode, a plurality of switches are required to cooperate, so that the cost is high, and meanwhile, the network distribution is inconvenient.

2. A redundant switch is adopted, for example, a Chinese patent publication No. CN203071960U, which discloses a redundant switch, wherein two switch boards are arranged, and each switch board comprises a redundant processing unit, a PHY unit and an MAC switching unit; the MAC switching unit is provided with a communication interface for accessing the Ethernet; the PHY unit is connected with the MAC exchange unit; the MAC exchange unit is integrated with a CPU and a stacking port; and forming a redundant backup link through interconnection of the stacking ports. In the working environment, the time delay is long.

Disclosure of Invention

The utility model provides a redundant switch to solve the problem of reducing redundancy while realizing low time delay and high bandwidth.

In order to solve the technical problems, the technical scheme adopted by the utility model is to provide a redundant switch, which comprises: the system comprises a plurality of Ethernet data interfaces, wherein the Ethernet data interfaces comprise two redundant Ethernet interfaces, and four Ethernet data interfaces can supply power to PD equipment, namely the Ethernet data interfaces support four channels PSE (Power Sourcing Equipment) POE (Power over Ethernet) AF/AT to supply power to the PD equipment; the system comprises an SFP optical fiber port and a grounding port, wherein the SFP optical fiber port signal is used for photoelectric signal conversion; and the integrated double-circuit power supply comprises a first direct current power supply port and a second direct current port.

The technical scheme provided by the utility model has the beneficial effects that:

the redundant switch is provided with a plurality of Ethernet interfaces, the adopted physical interfaces are RJ45 ports for accessing the Ethernet, wherein two Ethernet data interfaces in the plurality of Ethernet data interfaces support redundant data transmission and are redundant Ethernet interfaces, and the redundant Ethernet interfaces are two to form link redundancy. The Ethernet data interface of the redundant switch supports four-channel POE power supply, can input and output higher voltage, is provided with a first direct current power supply port and a second direct current port, wherein the first direct current power supply port and the second direct current port are combined into an integrated two-way power supply, and when one power supply is disconnected, the other power supply immediately starts to work, so that data loss caused by sudden power failure is avoided. The SFP optical fiber port effectively realizes gigabit photoelectric signal conversion, is used for signal conversion and data transmission, and implements the IEEE802.3 standard. The grounding port is connected with the grounding device, and can provide grounding protection for the switch equipment.

In some embodiments, the redundant switch is further provided with a configuration transmission unit and a redundant processing unit, wherein one end of the configuration transmission unit is connected with the redundant ethernet interfaces, and the other end of the configuration transmission unit is connected with CPU (Central Processing Unit), and is capable of receiving data of two redundant ethernet interfaces and transmitting the data to the CPU; the redundancy processing unit can mark the data of the CPU in real time and transmit the data to the Ethernet data interface, and the maximum bandwidth of the redundancy Ethernet interface is 1000Mbps.

By adopting the technical scheme, redundant data is transmitted to the CPU by configuring the transmission unit. When one of the links has a problem, the configuration transmission unit can rapidly convert the link to form link redundancy, and the data after redundancy processing is transmitted. The redundancy processing unit marks and positions the data received by the CPU, analyzes the data in the CPU, and transmits the data after redundancy processing to the Ethernet data interface through the data line for transmission. By implementing the redundant data processing common in the prior art on the redundant switch, bandwidth can be effectively enhanced and latency reduced. By setting two Ethernet interfaces, port aggregation is formed, and bandwidth increase of redundant Ethernet interfaces is realized.

In some embodiments, the redundant switch is capable of executing POE power supply of IEEE802.3 AT protocol, wherein the integrated two-way power supply is dc power supply when the power supply range of the redundant switch is 12V to 44V, and wherein the POE power supply is capable of operating and providing reverse connection protection when the power supply range of the redundant switch is 44V to 57V.

By adopting the technical scheme, the integrated two-way power supply executes the IEEE802.3 AT protocol, and the protocol is POE power supply standard. DC (direct current) 12-57V wide-voltage power supply is adopted, the power supply voltage range is divided into two sections, when the first section is 12-57V, direct current power supply is adopted when the power supply voltage range is within the section, the power transmission investment is less, and the electric energy loss is lower; when the second interval is 44V-57V, POE is adopted to supply power in the power supply voltage range, reverse connection protection is realized by utilizing the unidirectional conduction characteristic of the diode, and the redundant switch is safer in the use process. And the POE power supply and direct current power supply modes are adopted, so that double redundancy of power supply is realized, and the reliability of power supply is effectively ensured.

In some embodiments, the redundant switch is further provided with a YT8521 series chip, the YT8521 series chip connecting the SFP fabric port and CPU.

By adopting the technical scheme, the YT8521 serial chips are chips adopted by the Ethernet PHY (Physical Layer) module, so that the CPU light conversion port is realized.

In some embodiments, the redundant switch is provided with a power supply indicator light, an ethernet status indicator light, a light port power supply indicator light, and a system operation indicator light, the power supply indicator light comprising a dc power supply indicator light and a POE power supply indicator light.

By adopting the technical scheme, the redundant switch is provided with various indicator lamps to identify the current redundant switch.

In some embodiments, the redundant switch further comprises a system program storage space, a mobile storage space, and RAM memory. The storage temperature range of the redundant exchanger is-40-85 ℃, and the storage humidity range is 5-90% RH.

By adopting the technical scheme, flash is arranged in the system program storage space, the SD card is installed in the mobile storage space, and the RAM memory is DDR (Double Date Rate), so that space allocation is realized.

In some embodiments, the redundant switch operates at a temperature in the range of-45 ℃ to 70 ℃ and is capable of not condensing in an environment having a humidity in the range of 10% rh to 90% rh.

By adopting the technical scheme, the MT7621 is adopted as a CPU and is used as an industrial chip, and the MT7621 can continuously work at the ambient temperature of-45-70 ℃ so as to meet the requirement of a more severe working environment.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it will be obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic block flow diagram illustrating one embodiment of a redundant switch provided by the present utility model;

FIG. 2 is a schematic diagram of a redundant switch according to an embodiment of the present utility model;

FIG. 3 is a schematic circuit diagram illustrating one embodiment of a redundant switch according to the present utility model;

in the figure:

an Ethernet data interface-10; ethernet status indicator-100; redundant ethernet interfaces-11;

integrating a two-way power supply-20; direct current power supply indicator lamp-200; POE power supply indicator lamp-201; a first dc power supply port-21; a second dc power supply port-22;

CPU-30; configuring a transmission module-31; a tag resolution module-32; PHY module-33; YT8521 series chip-330; DDR-34; flash-35; SD card-36;

SFP fiber port-40; light port status indicator light-400.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

Referring to fig. 1 to 2, fig. 1 is a schematic block flow diagram of a redundant switch according to the present utility model, and fig. 2 is a schematic block diagram of a three-dimensional structure of a redundant switch according to the present utility model.

In some embodiments, as shown in connection with 1, the redundant switch comprises: a plurality of ethernet data interfaces 10, wherein the ethernet data interfaces 10 comprise two redundant ethernet interfaces 11, and the ethernet data interfaces 10 support four-channel PSE POE AF/AT to supply power to PD devices; the system comprises an SFP optical fiber port and a grounding port, wherein the SFP optical fiber port signal is used for photoelectric signal conversion; and a collective two-way power supply including a first direct current power supply port 21 and a second direct current port.

In the embodiment of the present utility model, referring to fig. 2, the number of ethernet data interfaces 10 is 5, and RJ45 ports are used as physical interfaces, where the ethernet data interfaces 10 include two redundant ethernet interfaces 11, so that link redundancy can be formed. The ethernet data interface 10 supports four PSE POE AT/AF to supply power to PD devices, i.e. to supply power to redundant switches through the four ethernet data interfaces 10. The integrated dual-path power supply 20 comprises a first direct current power supply port 21 and a second direct current power supply port 22, and both ports can be externally connected with power supply equipment to supply power for the redundant switch. When one of the power supplies is disconnected, the other power supply immediately starts to work, so that data loss caused by sudden power failure is avoided.

In some embodiments, as shown in fig. 1, the redundant switch is further provided with a configuration transmission unit and a redundant processing unit, wherein one end of the configuration transmission unit is connected to the redundant ethernet interfaces 11, and the other end of the configuration transmission unit is connected to the CPU30, and is capable of receiving data of two redundant ethernet interfaces 11 and transmitting the data to the CPU30; the redundant processing unit is capable of marking the data of the CPU30 in real time and transmitting to the ethernet data interface 10. The maximum bandwidth of the redundant ethernet interface 11 is 1000Mbps. The ethernet data interface 10 includes two redundant ethernet interfaces 11, and when the redundant ethernet interfaces 11 are in an active state, the redundant ethernet interfaces can be used as hardware interfaces to send and receive messages; when the redundant ethernet interface 11 is in an inactive state, it can act as an ethernet data interface 10.

In the embodiment of the present utility model, two redundant ethernet interfaces 11 access data, and the data is transmitted by configuring the transmission module 31, the data of the redundant ethernet interfaces 11 is transmitted to the CPU30, and the data transmitted by the redundant ethernet is subjected to real-time tag analysis by the tag analysis module 32, where the real-time tag analysis of the data is performed as in the prior art. And then output to the ethernet data interface 10 after parsing. Through the steps, two paths of redundant data are transmitted, and the data after redundancy analysis is transmitted to the Ethernet data interface 10. By providing two redundant ethernet interfaces 11, transmission is performed via the configuration transmission module 31 and port aggregation is formed, so that bandwidth of the redundant ethernet interfaces 11 is increased.

When one of the links has a problem, the configuration transmission unit can quickly convert the link to form link redundancy, and the bandwidth can be effectively enhanced and the time delay can be reduced by realizing the common redundant data processing in the prior art on the redundant switch, for example, the redundant time is less than 10ms under the data of TCP/IP 100Mbps flow.

Referring to fig. 3, fig. 3 shows a schematic circuit connection diagram of a redundant switch according to the present utility model.

In some embodiments, the integrated two-way power supply 20 is capable of performing POE power supply of IEEE802.3 AT protocol, wherein the integrated two-way power supply 20 is dc power supply when the power supply range of the redundant switch is 12V to 44V, and the POE power supply is capable of operating and providing reverse connection protection when the power supply range of the redundant switch is 44V to 57V.

In the embodiment of the present utility model, as shown in fig. 3, when the first DC power supply port 21 and the second DC power supply port 22 of the integrated two-way power supply 20 are respectively connected to DC12 to 57V power supplies, they are processed into DC5V power supplies by voltage reduction, and distributed to a plurality of circuits according to the current splitting principle. The circuit shown in, for example, 3 is split into a 3.3V dc voltage circuit, a 1.2V dc voltage circuit, a 1.1V dc voltage circuit, a 1.0V dc voltage circuit, and a 1.5V dc voltage circuit.

The integrated dual-channel power supply 20 implements the IEEE802.3 AT protocol, which is POE power standard. The DC10-57V wide-voltage power supply is adopted, the power supply voltage range is divided into two sections, when the first section is 12V to 44V, the power supply range of the redundant switch is in the section, the DC power supply is adopted, the power transmission investment is less, and the electric energy loss is lower; when the second interval is 44V to 57V, the power supply range of the redundant switch adopts POE power supply in the interval, and reverse connection protection is realized by utilizing the unidirectional conduction characteristic of the diode, so that the redundant switch is safer in the use process. And the POE power supply and the integrated dual-power supply 20 direct current power supply form are adopted, so that dual redundancy of power supply is realized, and the reliability of power supply is effectively ensured.

In some embodiments, the redundant switch is further provided with an SFP fiber port 40, a ground port, and a YT8521 series chip 330, the YT8521 series chip 330 connecting the SFP fiber port 40 and the CPU30, wherein the SFP fiber port 40 signals are used for optical-to-electrical signal conversion.

In an embodiment of the present utility model, as shown in fig. 3, the SFP fiber port 40 is an optical port, which is used for signal conversion and data transmission, and implements the IEEE802.3 standard. The data transmitted from the optical port is transmitted to the CPU30 through the YT1821 serial chip, where the YT8521 serial chip 330 is a chip adopted by the ethernet PHY (Physical Layer) module 33, so as to implement the data transmission processing of the optical port of the CPU 30. A ground port (not shown) is connected to the ground device to provide ground protection for the switch equipment.

In some embodiments, as shown in connection with fig. 2, the redundant switch is provided with power supply indicator lights, ethernet state indicator light 100, optical port power supply indicator light 400, and system operation indicator lights, including dc power supply indicator light 200 and POE power supply indicator light 201.

In the embodiment of the utility model, the redundant switch is provided with a plurality of indicator lamps for identifying the state of the current redundant switch. As shown in connection with fig. 2, the power supply indicator lights illustratively include 1 dc power indicator light 200, 4 POE power indicator lights 201,1 light port status indicator lights 400,1 system operation indicator lights, and 5 ethernet status indicator lights 100. The status is identified by the indicator lamps that are normally on, flash, and different colors, for example, the power supply indicator lamp is normally on, the direct current power supply indicator lamp 200 is normally on to indicate that the direct current power supply is connected, the ethernet status is identified by the ethernet status indicator lamp 100, for example, a link is established by the ethernet status indicator lamp 100 that is normally on, and the ethernet status indicator lamp 100 that is on the lower side determines the connected network status.

In the embodiment of the utility model, as shown in fig. 3, the system program storage space is Flash35, the mobile storage space is SD card 36, the RAM memory is DDR (Double Date Rate), the circuit which is transmitted by combining the integrated dual-path power supply 20 and is subjected to current diversion is connected to DDR34, the YT8521 serial chip 330 is connected to the SD card 36, and the Flash35 is connected with the CPU30, so that space allocation is realized.

In the embodiment of the utility model, the MT7621 chip is adopted as the CPU30 and is used as an industrial chip, and the MT7621 chip can continuously work at the ambient temperature of-45 ℃ to 70 ℃ so as to meet the requirement of a more severe working environment.

The foregoing description is only of embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields using the descriptions and drawings of the present utility model should be carried within the scope of the present utility model.

Claims

1. A redundant switch, comprising:

the system comprises a plurality of Ethernet data interfaces, wherein the Ethernet data interfaces comprise two redundant Ethernet interfaces, and four Ethernet data interfaces can supply power to PD equipment;

the system comprises an SFP optical fiber port and a grounding port, wherein the SFP optical fiber port signal is used for photoelectric signal conversion;

and the integrated double-circuit power supply comprises a first direct current power supply port and a second direct current port.

2. The redundant switch according to claim 1, wherein the redundant switch is further provided with a configuration transmission unit and a redundant processing unit, one end of the configuration transmission unit is connected with the redundant ethernet interfaces, and the other end is connected with the CPU, so that data of two redundant ethernet interfaces can be received and transmitted to the CPU; the redundant processing unit can mark the data of the CPU in real time and transmit the data to the Ethernet data interface.

3. The redundant switch of claim 2, wherein the maximum TCP/IP bandwidth of the redundant ethernet interface is 1000Mbps.

4. The redundant switch of claim 1, wherein the redundant switch is capable of executing POE power under IEEE802.3 AT protocol, wherein the integrated two-way power supply is dc power when the power range of the redundant switch is 12V to 44V, and wherein the POE power supply is capable of operating and providing reverse connection protection when the power range of the redundant switch is 44V to 57V.

5. The redundant switch of claim 1 further provided with a YT8521 series chip, the YT8521 series chip connecting the SFP fabric port and CPU.

6. The redundant switch of claim 1, wherein the redundant switch is provided with a power supply indicator light, an ethernet status indicator light, a light port power supply indicator light, and a system operation indicator light, the power supply indicator light comprising a dc power supply indicator light and a POE power supply indicator light.

7. The redundant switch of claim 1, wherein the redundant switch further comprises a system program storage space, a mobile storage space, and RAM memory.

8. The redundant switch of claim 7, wherein the redundant switch has a storage temperature in the range of-40 ℃ to 85 ℃ and a storage humidity in the range of 5% rh to 90% rh.

9. The redundant switch of claim 1, wherein the redundant switch has an operating temperature in the range of-45 ℃ to 70 ℃ and is capable of not condensing in an environment having a humidity in the range of 10% rh to 90% rh.