CN114339485A - Circuit suitable for multi-machine optical fiber communication - Google Patents
Circuit suitable for multi-machine optical fiber communication Download PDFInfo
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- CN114339485A CN114339485A CN202111454475.4A CN202111454475A CN114339485A CN 114339485 A CN114339485 A CN 114339485A CN 202111454475 A CN202111454475 A CN 202111454475A CN 114339485 A CN114339485 A CN 114339485A
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Abstract
The invention discloses a circuit suitable for multi-machine optical fiber communication, wherein each machine comprises an optical fiber communication circuit, the optical fiber communication circuit comprises sequentially numbered relays KM 1-KM 4, an optical fiber terminal HT1, an optical fiber terminal HT2, an optical fiber receiving port HR1 and an optical fiber receiving port HR2, the relays KM 1-KM 4 respectively comprise an upper end contact and a lower end contact, one end of the upper end contact and one end of the lower end contact of the relay KM1 are both connected with the optical fiber terminal HT1, and one end of the upper end contact and one end of the lower end contact of the relay KM2 are both connected with a signal receiving end Rxd; when the lower end contacts of the relay KM1 to the relay KM4 are closed, the current machine is a host; when the upper end contacts from the relay KM1 to the relay KM4 are closed, the current machine is a slave machine; the invention has the advantages that: the host machine and the slave machine are freely switched, and the use is convenient.
Description
Technical Field
The invention relates to the field of test power supplies, in particular to a circuit suitable for multi-machine optical fiber communication.
Background
In a high-power supply, multi-machine communication adopts an optical fiber communication mode, the optical fiber communication has a good anti-interference function, but the optical fiber communication Can not be like Can communication and Can realize multi-machine communication by bus connection. In the prior art, optical fiber communication can only be single-point transmission and single-point reception, and the traditional optical fiber communication mode is used for transmitting information by N branches for a host computer and receiving information by respective single points of slave computers, for example, chinese patent publication No. CN109787361A, discloses a distributed control system and method suitable for a campus microgrid, the system consists of a microgrid controller, a distributed power grid-connected interface device, a grid-connected point measurement and control protection device, a load control device and matched communication equipment thereof, wherein the control system adopts a master-slave control mode, the microgrid controller is used as a host of the control system, and the other devices are used as slaves and are arranged at a grid-connected point, distributed power supply nodes and load nodes, and the interaction of real-time information acquisition, operation mode switching instructions, load shedding instructions and grid-connected point tripping instructions of each control node in the microgrid is realized through a GOOSE/UDP multicast or broadcast protocol of the optical fiber Ethernet.
In summary, the host and the slave of the conventional optical fiber communication circuit cannot be freely switched, and the use is inconvenient.
Disclosure of Invention
The invention aims to solve the technical problems that a host and a slave of the traditional optical fiber communication circuit can not be freely switched and are inconvenient to use.
The invention solves the technical problems through the following technical means: a circuit suitable for multi-machine optical fiber communication is characterized in that each machine comprises an optical fiber communication circuit, the optical fiber communication circuit comprises sequentially numbered relays KM 1-KM 4, an optical fiber terminal HT1, an optical fiber terminal HT2, an optical fiber receiving port HR1 and an optical fiber receiving port HR2, the relays KM 1-KM 4 comprise upper end contacts and lower end contacts, one end of the upper end contact and one end of the lower end contact of the relay KM1 are connected with the optical fiber terminal HT1, one end of the upper end contact and one end of the lower end contact of the relay KM2 are connected with a signal receiving end Rxd, one end of the upper end contact and one end of the lower end contact of the relay KM3 are connected with a signal sending end Txd, and one end of the upper end contact and one end of the lower end contact of the relay KM4 are connected with an optical fiber receiving port HR 1; the other end of the lower end contact of the relay KM1 is suspended, and the other end of the upper end contact of the relay KM1, the other end of the optical fiber receiving port HR2, the other end of the lower end contact of the relay KM2 and the other end of the upper end contact of the relay KM3 are connected; the other end of the lower end contact of the relay KM4 is suspended, and the other end of the upper end contact of the relay KM4, the other end of the optical fiber terminal HT2, the other end of the upper end contact of the relay KM2 and the other end of the lower end contact of the relay KM3 are connected; when the lower end contacts of the relay KM1 to the relay KM4 are closed, the current machine is a host; when the upper contacts of the relay KM1 to the relay KM4 are closed, the current machine is a slave machine.
When contacts at the lower ends of the relay KM1 and the relay KM4 are closed, the current machine is a host machine; when the contacts at the upper ends of the relay KM1 and the relay KM4 are closed, the current machine is a slave machine, the contact of the relay is controlled to realize the free switching between the master machine and the slave machine, and the use is convenient.
Furthermore, the machines are a plurality of machines which are numbered from a first machine to an Nth machine in sequence, the optical fiber terminal HT2 of the first machine is connected with the optical fiber receiving port HR2 of the second machine, the optical fiber terminal HT2 of the second machine is connected with the optical fiber receiving port HR2 of the third machine, and the optical fiber terminal HT2 of the Nth machine is connected with the optical fiber receiving port HR2 of the first machine; the optical fiber terminal HT1 of the N machine is connected with the optical fiber receiving port HR1 of the N-1 machine, the optical fiber terminal HT1 of the N-1 machine is connected with the optical fiber receiving port HR1 of the N-2 machine, the optical fiber terminal HT1 of the second machine is connected with the optical fiber receiving port HR1 of the first machine, and the optical fiber terminal HT1 of the first machine is connected with the optical fiber receiving port HR1 of the N machine to form a ring connection.
Furthermore, the machine has 3 machines which are numbered from a first machine to a third machine in sequence, the optical fiber terminal HT2 of the first machine is connected with the optical fiber receiving port HR2 of the second machine, the optical fiber terminal HT2 of the second machine is connected with the optical fiber receiving port HR2 of the third machine, and the optical fiber terminal HT2 of the third machine is connected with the optical fiber receiving port HR2 of the first machine; the fiber terminal HT1 of the third machine is connected to the fiber receiving port HR1 of the second machine, the fiber terminal HT1 of the second machine is connected to the fiber receiving port HR1 of the first machine, and the fiber terminal HT1 of the first machine is connected to the fiber receiving port HR1 of the third machine, forming a ring connection.
Further, the optical fiber terminal HT1 and the optical fiber terminal HT2 have the same structure, the optical fiber terminal HT1 includes a sending terminal U1 and a driver U5, the optical fiber terminal HT2 includes a sending terminal U2 and a driver U6, and one end of the upper end contact and one end of the lower end contact of the relay KM1 are both connected with the sending terminal U1 through a driver U5; the transmission terminal U2 and the driver U6 were connected, and the other end of the upper end contact of the relay KM4, the other end of the upper end contact of the driver U6, the other end of the upper end contact of the relay KM2, and the other end of the lower end contact of the relay KM3 were connected.
Furthermore, the structure of the fiber receiving port HR1 and the structure of the fiber receiving port HR2 are the same, the fiber receiving port HR1 includes a receiving terminal U3 and a driver U7, the fiber receiving port HR2 includes a receiving terminal U4 and a driver U8, the receiving terminal U3 is connected with the driver U7, and one end of the upper end contact and one end of the lower end contact of the relay KM4 are both connected with the driver U7; the receiving terminal U4 and the driver U8 are connected, and the other end of the upper end contact of the relay KM1, the other end of the lower end contact of the driver U8, the relay KM2, and the other end of the upper end contact of the relay KM3 are connected.
Further, the model of the transmitting terminal U1 and the transmitting terminal U2 is HFRB-1521.
Furthermore, the signals of the receiving terminal U3 and the receiving terminal U4 are HFRB-2521.
Further, the driver U5, the driver U6, the driver U7 and the driver U8 are of model 74LS 06.
Further, the types of the relays KM 1-KM 4 are G6S-2F DC 5.
The invention has the advantages that:
(1) when contacts at the lower ends of the relay KM1 and the relay KM4 are closed, the current machine is a host machine; when the contacts at the upper ends of the relay KM1 and the relay KM4 are closed, the current machine is a slave machine, the contact of the relay is controlled to realize the free switching between the master machine and the slave machine, and the use is convenient.
(2) The invention realizes the parallel operation of a plurality of machines by setting the connection mode of the optical fiber communication circuit of each machine, and realizes the master-slave switching of each machine by controlling the relay of the optical fiber communication circuit of each machine, thereby realizing the multi-machine communication.
Drawings
FIG. 1 is a schematic diagram of a circuit suitable for multi-machine optical fiber communication according to an embodiment of the present invention;
FIG. 2 is a diagram of a circuit for multi-machine optical fiber communication according to an embodiment of the present invention, in which a current machine is a host;
FIG. 3 is a wiring diagram of a multi-machine optical fiber communication circuit with a slave machine as a current machine according to an embodiment of the present invention;
fig. 4 is a wiring diagram of parallel operation of multiple machines in a circuit suitable for multi-machine optical fiber communication according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a circuit suitable for multi-machine optical fiber communication, each machine comprises an optical fiber communication circuit, the optical fiber communication circuit comprises sequentially numbered relays KM1 to KM4, an optical fiber terminal HT1, an optical fiber terminal HT2, an optical fiber receiving port HR1 and an optical fiber receiving port HR2, relays KM1 to KM4 each comprise an upper end contact and a lower end contact, one end of the upper end contact and one end of the lower end contact of relay KM1 are both connected with the optical fiber terminal HT1, one end of the upper end contact and one end of the lower end contact of relay KM2 are both connected with a signal receiving end Rxd, one end of the upper end contact and one end of the lower end contact of relay KM3 are both connected with a signal transmitting end Txd, and one end of the upper end contact and one end of the lower end contact of relay KM4 are both connected with an optical fiber receiving port HR 1; the other end of the lower end contact of the relay KM1 is suspended, and the other end of the upper end contact of the relay KM1, the other end of the optical fiber receiving port HR2, the other end of the lower end contact of the relay KM2 and the other end of the upper end contact of the relay KM3 are connected; the other end of the lower end contact of the relay KM4 is suspended, and the other end of the upper end contact of the relay KM4, the other end of the optical fiber terminal HT2, the other end of the upper end contact of the relay KM2 and the other end of the lower end contact of the relay KM3 are connected.
Continuing to refer to fig. 1, the optical fiber terminal HT1 and the optical fiber terminal HT2 have the same structure, the optical fiber terminal HT1 includes a sending terminal U1 and a driver U5, the optical fiber terminal HT2 includes a sending terminal U2 and a driver U6, and one end of the upper end contact and one end of the lower end contact of the relay KM1 are connected to the sending terminal U1 through a driver U5; the transmission terminal U2 and the driver U6 were connected, and the other end of the upper end contact of the relay KM4, the other end of the upper end contact of the driver U6, the other end of the upper end contact of the relay KM2, and the other end of the lower end contact of the relay KM3 were connected.
With continued reference to fig. 1, the fiber receiving port HR1 and the fiber receiving port HR2 have the same structure, the fiber receiving port HR1 includes a receiving terminal U3 and a driver U7, the fiber receiving port HR2 includes a receiving terminal U4 and a driver U8, the receiving terminal U3 is connected with the driver U7, and one end of the upper end contact and one end of the lower end contact of the relay KM4 are both connected with the driver U7; the receiving terminal U4 and the driver U8 are connected, and the other end of the upper end contact of the relay KM1, the other end of the lower end contact of the driver U8, the relay KM2, and the other end of the upper end contact of the relay KM3 are connected. The model of the transmitting terminal U1 and the transmitting terminal U2 is HFRB-1521. The signals of the receiving terminal U3 and the receiving terminal U4 are HFRB-2521. The driver U5, the driver U6, the driver U7 and the driver U8 are 74LS06 in model number. The types of the relays KM 1-KM 4 are G6S-2F DC 5.
As shown in fig. 2, when the lower contacts of the relay KM1 to the relay KM4 are all closed, the signal transmitting terminal Txd transmits a signal to the optical fiber terminal HT2, the signal receiving terminal Rxd receives a signal from the optical fiber receiving port HR2, and the current machine is a host.
As shown in fig. 3, when the upper contacts of the relay KM1 to the relay KM4 are all closed, the signal transmitting terminal Txd transmits a signal to the optical fiber receiving port HR2, and the signal receiving terminal Rxd receives a signal from the optical fiber terminal HT2, where the current machine is a slave machine.
The equipment comprises a plurality of machines which are numbered from a first machine 1 to an Nth machine in sequence, wherein an optical fiber terminal HT2 of the first machine 1 is connected with an optical fiber receiving port HR2 of a second machine 2, an optical fiber terminal HT2 of the second machine 2 is connected with an optical fiber receiving port HR2 of a third machine 3, the optical fiber terminals HT2 of the Nth machine are connected with an optical fiber receiving port HR2 of the first machine 1 in sequence according to the rule; the optical fiber terminal HT1 of the N machine is connected with the optical fiber receiving port HR1 of the N-1 machine, the optical fiber terminal HT1 of the N-1 machine is connected with the optical fiber receiving port HR1 of the N-2 machine, the optical fiber terminal HT1 of the second machine 2 is connected with the optical fiber receiving port HR1 of the first machine 1, the optical fiber terminal HT1 of the first machine 1 is connected with the optical fiber receiving port HR1 of the N machine, and a ring-shaped connection is formed.
As shown in fig. 4, taking 3 machines as an example, the 3 machines are numbered sequentially as a first machine 1 to a third machine 3, the optical fiber terminal HT2 of the first machine 1 is connected to the optical fiber receiving port HR2 of the second machine 2, the optical fiber terminal HT2 of the second machine 2 is connected to the optical fiber receiving port HR2 of the third machine 3, and the optical fiber terminal HT2 of the third machine 3 is connected to the optical fiber receiving port HR2 of the first machine 1; the fiber terminal HT1 of the third machine 3 is connected to the fiber receiving port HR1 of the second machine 2, the fiber terminal HT1 of the second machine 2 is connected to the fiber receiving port HR1 of the first machine 1, and the fiber terminal HT1 of the first machine 1 is connected to the fiber receiving port HR1 of the third machine 3, forming a ring connection.
Through the technical scheme, when the lower end contacts of the relay KM1 to the relay KM4 are closed, the current machine is a host; when the contacts at the upper ends of the relay KM1 and the relay KM4 are closed, the current machine is a slave machine, the contact of the relay is controlled to realize the free switching between the master machine and the slave machine, and the use is convenient.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The circuit is characterized in that each machine comprises an optical fiber communication circuit, the optical fiber communication circuit comprises sequentially numbered relays KM 1-KM 4, an optical fiber terminal HT1, an optical fiber terminal HT2, an optical fiber receiving port HR1 and an optical fiber receiving port HR2, the relays KM 1-KM 4 comprise upper end contacts and lower end contacts, one end of the upper end contact and one end of the lower end contact of the relay KM1 are connected with the optical fiber terminal HT1, one end of the upper end contact and one end of the lower end contact of the relay KM2 are connected with a signal receiving end Rxd, one end of the upper end contact and one end of the lower end contact of the relay KM3 are connected with a signal sending end Txd, and one end of the upper end contact and one end of the lower end contact of the relay KM4 are connected with an optical fiber receiving port HR 1; the other end of the lower end contact of the relay KM1 is suspended, and the other end of the upper end contact of the relay KM1, the other end of the optical fiber receiving port HR2, the other end of the lower end contact of the relay KM2 and the other end of the upper end contact of the relay KM3 are connected; the other end of the lower end contact of the relay KM4 is suspended, and the other end of the upper end contact of the relay KM4, the other end of the optical fiber terminal HT2, the other end of the upper end contact of the relay KM2 and the other end of the lower end contact of the relay KM3 are connected; when the lower end contacts of the relay KM1 to the relay KM4 are closed, the current machine is a host; when the upper contacts of the relay KM1 to the relay KM4 are closed, the current machine is a slave machine.
2. The circuit suitable for multi-machine optical fiber communication of claim 1, wherein the machines are multiple and numbered from a first machine to an Nth machine in sequence, the optical fiber terminal HT2 of the first machine is connected with the optical fiber receiving port HR2 of the second machine, the optical fiber terminal HT2 of the second machine is connected with the optical fiber receiving port HR2 of the third machine, and the optical fiber terminal HT2 of the Nth machine is connected with the optical fiber receiving port HR2 of the first machine; the optical fiber terminal HT1 of the N machine is connected with the optical fiber receiving port HR1 of the N-1 machine, the optical fiber terminal HT1 of the N-1 machine is connected with the optical fiber receiving port HR1 of the N-2 machine, the optical fiber terminal HT1 of the second machine is connected with the optical fiber receiving port HR1 of the first machine, and the optical fiber terminal HT1 of the first machine is connected with the optical fiber receiving port HR1 of the N machine to form a ring connection.
3. The circuit suitable for multi-machine optical fiber communication of claim 2, wherein the machines have 3 machines, which are numbered in sequence from a first machine to a third machine, the optical fiber terminal HT2 of the first machine is connected with the optical fiber receiving port HR2 of the second machine, the optical fiber terminal HT2 of the second machine is connected with the optical fiber receiving port HR2 of the third machine, and the optical fiber terminal HT2 of the third machine is connected with the optical fiber receiving port HR2 of the first machine; the fiber terminal HT1 of the third machine is connected to the fiber receiving port HR1 of the second machine, the fiber terminal HT1 of the second machine is connected to the fiber receiving port HR1 of the first machine, and the fiber terminal HT1 of the first machine is connected to the fiber receiving port HR1 of the third machine, forming a ring connection.
4. The circuit suitable for multi-machine optical fiber communication according to claim 1, wherein the optical fiber terminal HT1 and the optical fiber terminal HT2 are identical in structure, the optical fiber terminal HT1 comprises a sending terminal U1 and a driver U5, the optical fiber terminal HT2 comprises a sending terminal U2 and a driver U6, and one end of the upper end contact of the relay KM1 and one end of the lower end contact thereof are connected with the sending terminal U1 through a driver U5; the transmission terminal U2 and the driver U6 were connected, and the other end of the upper end contact of the relay KM4, the other end of the upper end contact of the driver U6, the other end of the upper end contact of the relay KM2, and the other end of the lower end contact of the relay KM3 were connected.
5. The circuit suitable for multi-machine optical fiber communication according to claim 4, wherein the optical fiber receiving port HR1 and the optical fiber receiving port HR2 are identical in structure, the optical fiber receiving port HR1 comprises a receiving terminal U3 and a driver U7, the optical fiber receiving port HR2 comprises a receiving terminal U4 and a driver U8, the receiving terminal U3 is connected with a driver U7, and one end of an upper end contact of the relay KM4 and one end of a lower end contact of the relay KM4 are both connected with a driver U7; the receiving terminal U4 and the driver U8 are connected, and the other end of the upper end contact of the relay KM1, the other end of the lower end contact of the driver U8, the relay KM2, and the other end of the upper end contact of the relay KM3 are connected.
6. The circuit of claim 5, wherein the type of the transmission terminal U1 and the type of the transmission terminal U2 are HFRB-1521.
7. The circuit of claim 5, wherein the signals of the receiving terminal U3 and the receiving terminal U4 are HFRB-2521.
8. The circuit suitable for multi-machine optical fiber communication according to claim 5, wherein the model number of the driver U5, the driver U6, the driver U7 and the driver U8 is 74LS 06.
9. The circuit suitable for multi-machine optical fiber communication of claim 1, wherein the types of the relays KM 1-KM 4 are G6S-2F DC 5.
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| CN202111454475.4A CN114339485B (en) | 2021-12-01 | 2021-12-01 | Circuit suitable for multi-machine optical fiber communication |
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Address after: 230088 No.8 DALONGSHAN Road, hi tech Zone, Hefei City, Anhui Province Applicant after: Cowell Technology Co.,Ltd. Address before: 230088 No.8 DALONGSHAN Road, hi tech Zone, Hefei City, Anhui Province Applicant before: Hefei Kewei Power System Co.,Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |