The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of ethernet device with bypass circuit, can in power down,Automatically the faulty equipment is skipped, realizes the circuit redundancy feature of physical layer.
What the embodiment of the present invention was realized in：
A kind of ethernet device with bypass circuit, including the power supply for power supply, IC chip, at least two networks becomeDepressor and at least two Ethernet power port connectors, in addition to：Control signal module and at least two relays, power supply and IC coresPiece connects, and the coil of power supply and relay connects, and the first signal output part and secondary signal output end of IC chip connect respectivelyFirst network transformer and the second network transformer, first network transformer connect the normally opened contact of the first relay, the second netNetwork transformer connects the normally opened contact of the second relay, and the normally-closed contact of the normally-closed contact of the first relay and the second relay is mutualEven, the first Ethernet power port connector connects the central contact of the first relay, the second Ethernet power port connector connection secondThe central contact of relay；Coil of the control signal module respectively with least two relay is connected, control relayThe power or power-down of coil.
The control signal module is a switch, is connected between the coil and power supply of relay.
The embodiment of the present invention realizes bypass functionality by the way that relay is linked into the circuit of ethernet device, in power downOr when artificially being set by control signal so that two Ethernet power port connectors of ethernet device are directly connected to, so as to realPurpose is now bypassed, when an ethernet device failure, by direct-connected mode, the ethernet device of failure is skipped, makes chainIt will not be paralysed in the communication system of connection, realize the circuit redundancy feature of physical layer, reduce loss caused by equipment fault；CircuitIn be provided with control signal module, manually relay can be controlled, ensure that the flexibility to equipment operation.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and ExamplesThe present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, andIt is not used in the restriction present invention.
It is described in detail below in conjunction with specific implementation of the specific embodiment to the present invention：
As shown in Figures 1 to 4, the bypass circuit of ethernet device, including：IC chip, relay, control signal module,Network transformer and 10M/100M/1000M Ethernet power port connectors, Ethernet power port connector can be any one confessionThe connector that industry spot communication uses, such as：RJ45 stands, M12 stands, Europlug connector etc..Control signal moduleIt is connected with relay, for the on/off of control relay, when needing to carry out manual control to relay, such as sometimesEthernet device is overhauled, at this moment just needs to operate, only need operating control signal module on relay coil electricity orPower-off, you can realize the control to relay, ensure that the flexibility of whole equipment operation.
The present invention uses in pairs in design and in application, first Ethernet power port connector and second Ethernet power portConnector partners by pass (bypass) interface, when powering normal, first Ethernet power port connector and second withToo net power port connector works independently between each other, does not establish any physical connection, believes when powering abnormal or by controllingNumber artificial when setting, first Ethernet power port connector and second Ethernet power port connector then directly turn on, and establish thingReason connection.The present invention utilizes the operation principle of relay, sees Fig. 2, i.e.,：When powering abnormal, the central contact O meetings of relayIt is connected to form path with normally-closed contact A；And when powering normal, the central contact O of relay can disconnect and normally-closed contact A automaticallyConnection transfers to be connected to form path with normally opened contact B.
The signal pins of two Ethernet power port connectors are connected with the central contact of relay respectively, each EthernetThe signal pins of network transformer corresponding to power port are connected with the normally opened contact of relay respectively, and by first Ethernet power portThe normally closed of relay used in the normally-closed contact of relay used in connector and second Ethernet power port connector is touchedPoint connection.When powering normal, the power port connector of relay center contact is connected to by relay and is connected to normally opened touchThe network transformer of point establishes connection, and first Ethernet power port connector and second Ethernet power port connector are as normalEthernet power port is advised to use.When artificially setting when powering abnormal or by control signal, relay center contact is connected toPower port connector pass through relay and be connected to the opposite end power port connector of normally-closed contact and establish and connect, first Ethernet electricityMouth connector and second Ethernet power port connector establish physical connection so as to directly turn on.
As shown in figure 5, a kind of ethernet device with bypass circuit, including the power supply for power supply, IC chip, at leastTwo network transformers and at least two Ethernet power port connectors, in addition to：Control signal module and at least two relays,Power supply is connected with IC chip, the coil connection of power supply and relay, the first signal output part and the secondary signal output of IC chipEnd connects first network transformer T1 and the second network transformer T2, first network transformer T1 the first relays of connection K1 respectivelyNormally opened contact, second network transformer T2 the second relays of connection K2 normally opened contact, the first relay K1 normally-closed contactInterconnected with the second relay K2 normally-closed contact, first Ethernet power port connector J1 the first relays of connection K1 center is touchedPoint, second Ethernet power port connector J2 the second relays of connection K2 central contact；Control signal module respectively with it is described extremelyThe coil of few two relays is connected (not shown), the power or power-down of control relay coil, control signal moduleCan be by controlling power supply to realize the control to relay to relay coil power or power-down, when some relay of needsJust to electricity on some relay, it is necessary to just give some relay power down process during power down when upper electric, by power or power-down so thatIn the normally-closed contact or normally opened contact access circuit that determine relay, so that relay is artificially controllable, in overhaul of the equipments,Operation is flexible.The control signal module is a switch, is connected between the coil and power supply of relay, when switching offWhen, the coil of relay and separated, the coil power down of power supply.
Whole circuit is mainly connected by IC chip, first network transformer T1, the first relay K1, the first Ethernet power portDevice J1, the second network transformer T2, the second relay K2 and the second Ethernet power port connector J2 compositions.First network transformerT1, the first relay K1 and the function element that the first Ethernet power port connector J1 is port Port1, the second network transformerT2, the second relay K2 and the second Ethernet power port connector J2 are port Port2 function element, the first relay K1 and theTwo relay K2 are the relays of a two-way, and contact centered on O, A are normally opened contact, B is normally-closed contact.Two Ethernet electricityMouth connector connection relay center contact O, the ethernet signal of IC chip are connected to two relays by network transformerNormally opened contact A, the normally-closed contact of two relays is connected with each other.
When power supply power supply is normal, IC chip and the first relay K1, the second relay K2 normal works, O1 and A1, O2It is connected with A2, O3 and A3, O4 and A4, the first Ethernet power port connector J1 output signals are R1+ and R1-, and the second Ethernet is electricMouth connector J2 output signals are R2+ and R2-.
When power supply power supply is abnormal, IC chip and the first relay K1, the second relay K2 do not work, O1 and B1, O2It is connected with B2, O3 and B3, O4 and B4, and B1 has established physical connection so O1 and O3, O2 and O4 on the line with B3, B2 and B4Also connection is established, i.e. the first Ethernet power port connector J1 and the second Ethernet power port connector J2 are directly turned on.
In Fig. 6, it is assumed that a total of 10 section compartment of certain train, each compartment install an interchanger and be used to gather in the compartmentData and transmission, first and second port of interchanger be connected respectively with the interchanger in front and rear compartment, i.e., used between each compartmentChain structure connects, and the 1st compartment is data summarization and the processing that control room is responsible for each compartment.
If first and second port of this batch of ethernet device does not possess power down By Pass (bypass) function, when in systemDuring the unexpected power down cisco unity malfunction of a certain equipment, such as the 2nd compartment device looses power, then the 2nd compartment and the 1st compartment and the 3rdDisconnecting between compartment, then control room will be unable to receive the data of 2-10 compartments collection, whole system is all paralysed.
If first and second port of this batch of ethernet device possesses power down By Pass functions, when some in systemDuring the unexpected power down cisco unity malfunction of equipment, for example the 2nd compartment device looses power, first and second port of the equipment can turn on automatically,Directly it is connected equivalent to the 1st compartment with the 3rd compartment, the constraint not by intermediate node is continued normal work by whole system.
When needing to overhaul some equipment in system, for example the equipment in the 2nd compartment is overhauled, canBy the coil power down of control signal module control relay, to allow first and second port of equipment in the 2nd compartment to lead automaticallyIt is logical, directly it is connected equivalent to the 1st compartment with the 3rd compartment, the constraint not by intermediate node is continued normal work by whole system；InspectionAfter the completion of repairing, by electric on control signal module control relay coil, the equipment in the 2nd compartment will normal operation, addThe flexibility of control.
In embodiments of the invention, to employ the industry spot system of chain structure, to provide a kind of circuit of physical layer superfluousComplementary work energy, when when intermediate equipment is because of power down cisco unity malfunction or needing manual control, can skip automatically the faulty equipment withRecover whole system communication, reduce equipment can not normal power supply when to caused by industry spot loss.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present inventionAll any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.