Disclosure of Invention
In view of the above, the embodiment of the application provides a bypass protection device, a bypass protection method and network equipment, which can effectively solve the problems that in the prior art, the relay is worn and corroded by an internal mechanical mechanism and a contact caused by long-term working in a severe environment, the reliability and the speed of the relay are seriously affected, the performance of the whole equipment is further reduced, and even the problems of signal attenuation, delay increase, data packet loss and the like are caused in the data transmission process.
In a first aspect, an embodiment of the present application provides a bypass protection device, including at least one set of switching control circuits, at least one set of transformers, and at least one set of ethernet interfaces.
The first input ends of the first switching control circuits of each group are respectively and electrically connected with the first Ethernet ports of each switch chip, the second input ends of the first switching control circuits of each group are respectively connected with the second input ends of the second switching control circuits of each group, the output ends of the first switching control circuits of each group are respectively connected with the input ends of the first transformers of each group, and the output ends of the first transformers of each group are respectively connected with the first Ethernet interfaces of each group;
The first input ends of the second switching control circuits of each group are respectively and electrically connected with the second Ethernet ports of each switch chip, the output ends of the second switching control circuits of each group are respectively connected with the input ends of the second transformers of each group, and the output ends of the second transformers of each group are respectively connected with the second Ethernet interfaces of each group;
and the switching control circuits of the groups are used for controlling the switch chip to perform network transmission with each Ethernet interface through each transformer when the switch chip works normally, and controlling the first Ethernet interface and the second Ethernet interface in the groups to perform network transmission when the switch chip cannot work normally.
In some embodiments, each switching control circuit has the same structure and comprises a relay and a protection module, wherein one end of a coil of the relay is used for being connected with a power supply, the other end of the coil of the relay is grounded, a first common end of the relay is electrically connected with each transformer, a second common end of the relay is electrically connected with each transformer, a first normally open contact of the relay is electrically connected with an Ethernet port of each switch chip, a second normally open contact of the relay is electrically connected with an Ethernet port of each switch chip, the first normally closed contact of the relay is connected with a first normally closed contact of a relay in the same group, the second normally closed contact of the relay is connected with a second normally closed contact of a relay in the same group, and one end of the protection module is used for being connected with the power supply.
In some embodiments, each of the switching control circuits further includes a filter module, one end of the filter module is used for connecting to the power supply, and the other end of the filter module is grounded.
In some embodiments, the filtering module comprises a filtering capacitor, one end of the filtering capacitor is used for being connected with the power supply, and the other end of the filtering capacitor is grounded.
In some embodiments, the bypass protection device further comprises an anti-interference module, one end of the anti-interference module is used for being connected with the power supply, and the other end of the anti-interference module is connected with one end of a coil of the relay.
In some embodiments, the anti-interference module comprises a magnetic bead, one end of the magnetic bead is used for being connected with the power supply, and the other end of the magnetic bead is connected with one end of a coil of the relay.
In some embodiments, the bypass protection device further comprises at least one group of filter circuits, one end of each group of first filter circuits is connected with the first Ethernet port of each switch chip, the other end of each group of first filter circuits is connected with the first input end of each group of first switch control circuits, one end of each group of second filter circuits is connected with the second Ethernet port of each switch chip, and the other end of each group of second filter circuits is connected with the first input end of each group of second switch control circuits.
In some embodiments, each filter circuit has the same structure and comprises a first resistor, a second resistor, a first capacitor and a second capacitor, wherein one end of the first resistor is connected with the positive electrode end of each Ethernet port, the other end of the first resistor is connected with the positive electrode of the first input end of each switching control circuit, one end of the second resistor is connected with the negative electrode end of each Ethernet port, the other end of the second resistor is connected with the negative electrode of the first input end of each switching control circuit, one end of the first capacitor is connected with the positive electrode end of each Ethernet port, the other end of the first capacitor is grounded, one end of the second capacitor is connected with the negative electrode end of each Ethernet port, and the other end of the second capacitor is grounded.
In a second aspect, an embodiment of the present application provides a bypass protection method, where the bypass protection method is applied to at least one bypass protection device described in the first aspect, and the bypass protection method includes:
When the switch chip works normally, the first input ends of the first switching control circuits of the groups are controlled to be respectively connected with the output ends of the first switching control circuits of the groups, and the first input ends of the second switching control circuits of the groups are controlled to be respectively connected with the output ends of the second switching control circuits of the groups, so that the switch chip can respectively carry out network transmission with all Ethernet interfaces through all transformers;
when the switch chip cannot work normally, the second input ends of the first switching control circuits of the groups are controlled to be respectively connected with the output ends of the first switching control circuits of the groups, and the second input ends of the second switching control circuits of the groups are controlled to be respectively connected with the output ends of the second switching control circuits of the groups, so that network transmission is carried out between the first Ethernet interfaces and the second Ethernet interfaces of the groups.
In a third aspect, an embodiment of the present application provides a network device, where at least one bypass protection device as described in the first aspect is provided.
The embodiment of the application has the following beneficial effects:
The bypass protection device comprises at least one group of switching control circuits, at least one group of transformers and at least one group of Ethernet interfaces, wherein the first input ends of the first switching control circuits of the groups are respectively and electrically connected with the first Ethernet ports of the switch chips, the second input ends of the first switching control circuits of the groups are respectively connected with the second input ends of the second switching control circuits of the groups, the output ends of the first switching control circuits of the groups are respectively connected with the first Ethernet interfaces of the groups through the first transformers of the groups, the first input ends of the second switching control circuits of the groups are respectively connected with the second Ethernet ports of the switch chips, the output ends of the second switching control circuits of the groups are connected with the second Ethernet interfaces of the groups through the second transformers of the groups, and when the switch chips cannot work normally, network transmission is carried out between the first Ethernet interfaces of the groups and the second Ethernet interfaces of the groups, so that the networks of the groups are still in a communicating state.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.
The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
The terms "comprises," "comprising," "including," or any other variation thereof, are intended to cover a specific feature, number, step, operation, element, component, or combination of the foregoing, which may be used in various embodiments of the present application, and are not intended to first exclude the presence of or increase the likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the application belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is the same as the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in connection with the various embodiments of the application.
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.
In consideration of the problems that the relay in the existing scheme is worn and corroded by an internal mechanical mechanism and a contact in a severe environment due to long-term working, the reliability and the speed of the relay are seriously affected, the performance of the whole equipment is further reduced, and signal attenuation, delay increase and data packet loss are caused even in the data transmission process, the bypass protection device, the bypass protection method and the network equipment are provided. According to the application, the switching control circuit is arranged in front of the transformer, and is protected by the transformer, so that the switching control circuit is prevented from working in a severe environment for a long time, the abrasion and ageing degree of the internal electric elements and mechanical structures of the switching control circuit are greatly slowed down, the high-speed transmission and stability of network data transmission are ensured, and the performance of the whole equipment is greatly improved.
The bypass protection device is described below in connection with specific embodiments.
Fig. 1 shows a schematic structural view of a bypass protection device according to an embodiment of the present application. Illustratively, the bypass protection device includes at least one set of switching control circuits 10, at least one set of transformers 20, and at least one set of Ethernet interfaces 30. It will be appreciated that the two are divided into a group, the group of switching control circuits 10 includes the first switching control circuit 101 and the second switching control circuit 102, the group of transformers 20 includes the first transformer 201 and the second transformer 202, and the group of ethernet interfaces 30 includes the first ethernet interface 301 and the second ethernet interface 302.
As other embodiments, a set of transformers 20 may also be implemented using a single transformer with at least two sets of primary and secondary windings, the single transformer having different primary winding inputs and secondary winding outputs, the different primary winding inputs being connected to different switching control circuits, the different secondary winding outputs being connected to different ethernet interfaces, isolation between the first ethernet port and the first ethernet interface 301 and isolation between the second ethernet port and the second ethernet interface 302 in a set being implemented using a single transformer, further, only one transformer may be provided in the bypass protection device, isolation between the first ethernet port and the first ethernet interface 301 and isolation between the second ethernet port and the second ethernet interface 302 in a plurality of sets being implemented using a single transformer.
The number of sets of the switching control circuit and the ethernet interface may be set according to practical situations, and it is understood that the number of sets of the switching control circuit is the same as the number of sets of the ethernet interface, and each set of switching control circuit should correspond to one set of ethernet interfaces 30.
The first input ends of the first switching control circuits 101 of each group are respectively and electrically connected with the first ethernet ports of the switch chips 40, the second input ends of the first switching control circuits 101 of each group are respectively connected with the second input ends of the second switching control circuits 102 of each group, the output ends of the first switching control circuits 101 of each group are respectively connected with the input ends of the first transformers 201 of each group, and the output ends of the first transformers 201 of each group are respectively connected with the first ethernet interfaces 301 of each group.
The first input end of each group of second switching control circuits 102 is electrically connected with the second ethernet ports of each switch chip 40, the output end of each group of second switching control circuits 102 is connected with the input end of each group of second transformers 202, the output end of each group of second transformers 202 is connected with each group of second ethernet interfaces 302, as other embodiments, multiple groups of switching control circuits can be connected with different ethernet ports of a single switch chip 40, multiple groups of switching control circuits can also be connected with different switch chips 40, the first switching control circuits 101 and the second switching control circuits 102 in the single group of switching control circuits can also be connected with the ethernet ports of different switch chips 40, and the connection between the switching control circuits and the switch chips 40 can be set according to practical application conditions.
The switch control circuits of each group are used for controlling the switch chip 40 to perform network transmission with each ethernet interface through each transformer when the switch chip 40 works normally, and controlling the first ethernet interface 301 and the second ethernet interface 302 in each group to perform network transmission when the switch chip 40 cannot work normally.
Illustratively, relays are disposed in each switching control circuit, and the transmission between networks is controlled by controlling the relays with a power signal or a control circuit, specifically, when the switch chip 40 works normally, the first input end of the first switching control circuit 101 is communicated with the output end, the switch chip 40 sequentially passes through the first switching control circuit 101 and the first transformer 201 to perform network transmission with the first ethernet interface 301, the first input end of the second switching control circuit 102 is communicated with the output end, and the switch chip 40 sequentially passes through the second switching control circuit 102 and the second transformer 202 to perform network transmission with the second ethernet interface 302.
When the switch chip 40 cannot normally operate, the second input end of the first switching control circuit 101 is connected to the output end, the second input end of the second switching control circuit 102 is connected to the output end, and network transmission is performed between the first ethernet interface 301 and the second ethernet interface 302.
The bypass protection device of the embodiment is characterized in that the switching control circuit is arranged at the front end of the transformer, the transformer can be isolated, the interference to the internal circuit of the equipment after external absorption is reduced, the stability and the safety of the internal circuit of the equipment are protected, meanwhile, the interference and the loss to the relay can be reduced, the service life of the relay is prolonged, the high-speed transmission and the stability of network data transmission are guaranteed, the performance of the whole equipment is improved, signals can be converted, the requirements of different equipment and interfaces can be met by the signals, and the integrity and the accuracy of the signals in the transmission process are further guaranteed.
As an alternative, fig. 2 is a schematic circuit diagram of a switching control circuit according to an embodiment of the present application.
In an embodiment, as shown in fig. 2, on the basis of the above embodiment, each switching control circuit has the same structure, and includes: relay K1 and protection module 111, one end of the coil of relay K1 (corresponding to the 1 st pin of relay K1 in fig. 2) is used for connecting to the power supply, the other end of the coil of relay K1 (corresponding to the 2 nd pin of relay K1 in fig. 2) is grounded, the first common end of relay K1 (corresponding to the 5 th pin of relay K1 in fig. 2) is electrically connected to each transformer, the second common end of relay K1 (corresponding to the 6 th pin of relay K1 in fig. 2) is electrically connected to each transformer, the first normally open contact of relay K1 (corresponding to the 3 rd pin of relay K1 in fig. 2) is electrically connected to the ethernet port of each switch chip 40, the second normally-open contact of the relay K1 (corresponding to the 4 th pin of the relay K1 in fig. 2) is electrically connected with the ethernet port of each switch chip 40, the first normally-closed contact of the relay K1 (corresponding to the 7 th pin of the relay K1 in fig. 2) is connected with the first normally-closed contact of the relay K1 in the same group, the second normally-closed contact of the relay K1 (corresponding to the 8 th pin of the relay K1 in fig. 2) is connected with the second normally-closed contact of the relay K1 in the same group, one end of the protection module 111 is used for connecting a power supply, the other end of the protection module 111 is grounded, it is understood that fig. 2 takes the first switching control circuit 101 as an example, the normally-open contact is connected with the first ethernet port of the switch chip 40, the common end is connected with the first transformer 201, the normally-closed contact is connected with the second switching control circuit 102, the power supply is denoted by VCC and the ground is denoted by GND.
Specifically, when the power supply outputs a power supply signal, two public ends of the relay K1 are closed with two normally open contacts, signals of the Ethernet port flow to the Ethernet interface through the transformer, when the power supply is powered off, the two public ends of the relay K1 are closed with the two normally closed contacts, network transmission is carried out between the Ethernet interfaces of the same group, and it is understood that the Ethernet port comprises a positive end of the Ethernet port and a negative end of the Ethernet port, and the positive end and the negative end are respectively electrically connected with the two normally open contacts of the relay K1.
The protection module 111 may be any protection module, and as shown in fig. 2, the protection module 111 is a diode.
According to the bypass protection device, the relay K1 is arranged in the switching control circuit, bypass protection is achieved through the relay K1, network service is still available when network equipment fails, and high availability and reliability of a system are improved. Diodes are connected in parallel to the two ends of the coil of the relay K1, so that high reverse voltage can be prevented from being generated, and the circuit can be protected.
In one embodiment, as shown in fig. 2, each switching control circuit further includes a filtering module 112, where one end of the filtering module 112 is used for connecting to a power source, and the other end of the filtering module 112 is grounded.
It is understood that the filtering module 112 may be any filtering module, and as shown in fig. 2, the filtering module 112 is a filtering capacitor.
According to the bypass protection device, the filter capacitors are connected in parallel to the two ends of the coil of the relay K1, transient voltage can be further restrained, a circuit is protected, electromagnetic interference can be reduced, and electromagnetic compatibility of a system is improved.
As an alternative, fig. 3 is a schematic diagram of another structure of the bypass protection device according to the embodiment of the present application.
In an embodiment, as shown in fig. 3, the bypass protection device further includes an anti-interference module 50, wherein one end of the anti-interference module 50 is used for connecting with a power supply, and the other end of the anti-interference module 50 is connected with one end of a coil of the relay K1.
It is understood that the anti-interference module 50 may be any anti-interference module, and the anti-interference module 50 is exemplified by magnetic beads.
According to the bypass protection device, the magnetic beads are arranged between the power supply and the coil of the relay K1, so that the quality of a power supply signal can be improved, and electromagnetic interference can be further restrained.
In an embodiment, as shown in fig. 3, the bypass protection device further includes at least one group of filter circuits 60, one end of each group of first filter circuits 601 is connected to the first ethernet port of each switch chip 40, the other end of each group of first filter circuits 601 is connected to the first input end of each group of first switch control circuits 101, one end of each group of second filter circuits 602 is connected to the second ethernet port of each switch chip 40, and the other end of each group of second filter circuits 602 is connected to the first input end of each group of second switch control circuits 102.
It is understood that the filter circuit may be any filter circuit, the filter circuit may be an RC filter circuit, the filter circuit may also be an RL filter circuit, the filter circuit may also be an LC filter circuit, etc.
The bypass protection device of the embodiment sets a filter circuit between the switch chip 40 and the switching control circuit, which can protect the switch chip 40, prolong the service life of the switch chip 40, improve the reliability of the system, reduce the reflection and ringing on the signal line, and improve the signal integrity.
In an embodiment, fig. 4 is a schematic circuit diagram of a filter circuit according to the embodiment of the present application, where on the basis of the above embodiment, each filter circuit has the same structure and includes a first resistor R1, a second resistor R2, a first capacitor C1 and a second capacitor C2, one end of the first resistor R1 is connected to the positive end of each ethernet port, the other end of the first resistor R1 is connected to the positive end of the first input end of each switching control circuit, one end of the second resistor R2 is connected to the negative end of each ethernet port, the other end of the second resistor R2 is connected to the negative end of the first input end of each switching control circuit, one end of the first capacitor C1 is connected to the positive end of each ethernet port, the other end of the first capacitor C1 is grounded, one end of the second capacitor C2 is connected to the negative end of each ethernet port, and the other end of the second capacitor C2 is grounded. Fig. 4 exemplifies a first filter circuit 601.
The bypass protection device of the embodiment has the advantages that the filter circuit comprises a resistor and a capacitor, the structure is simple, the cost is low, the switch chip 40 can be protected, and meanwhile, the cost of a system is reduced.
The embodiment of the application also provides a bypass protection method, and fig. 5 shows a schematic flow chart of the bypass protection method according to the embodiment of the application, where the bypass protection method is applied to the bypass protection device according to any one of the embodiments, and includes:
Step S101, when the switch chip 40 works normally, the first input ends of the first switch control circuits 101 of each group are respectively connected to the output ends of the first switch control circuits 101 of each group, and the first input ends of the second switch control circuits 102 of each group are respectively connected to the output ends of the second switch control circuits 102 of each group, so that the switch chip 40 performs network transmission with each ethernet interface through each transformer.
When the switch chip 40 works normally, the switch chip 40 sequentially passes through the first switching control circuit 101 and the first transformer 201 to perform network transmission with the first ethernet interface 301, and the switch chip 40 sequentially passes through the second switching control circuit 102 and the second transformer 202 to perform network transmission with the second ethernet interface 302.
Step S102, when the switch chip 40 cannot normally work, the second input ends of the first switching control circuits 101 of each group are respectively connected with the output ends of the first switching control circuits 101 of each group, and the second input ends of the second switching control circuits 102 of each group are respectively connected with the output ends of the second switching control circuits 102 of each group, so that network transmission is performed between the first Ethernet interfaces 301 and the second Ethernet interfaces of each group.
When the switch chip 40 cannot work normally, the first ethernet interface 301 is turned on with the second ethernet interface 302 sequentially through the first switching control circuit 101 and the second switching control circuit 102.
In the embodiment, the bypass protection is realized by using the switching control circuit, so that the network service is still available when the network equipment fails, and the high availability and reliability of the system are improved. The switching control circuit is arranged at the front end of the transformer, the transformer can be isolated, the interference to the internal circuit of the equipment after external absorption is reduced, the stability and the safety of the internal circuit of the equipment are protected, meanwhile, the interference and the loss to the relay K1 can be reduced, the service life of the relay K1 is prolonged, the high-speed transmission and the stability of network data transmission are guaranteed, and the performance of the whole equipment is improved.
The embodiment of the application also provides a network device, in which the bypass protection device mentioned in any embodiment is arranged, and it can be understood that the network device can be any network device, the network device can be a network security device such as a firewall, the network device can also be a network switch, the network device can also be a router, the network device can also be a network monitoring device, and the network device can also be a medical network device.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, of the flow diagrams and block diagrams in the figures, which illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules or units in various embodiments of the application may be integrated together to form a single part, or the modules may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a smart phone, a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application.