CN217787638U - Photoelectric conversion device for water and electricity control system - Google Patents
Photoelectric conversion device for water and electricity control system Download PDFInfo
- Publication number
- CN217787638U CN217787638U CN202221574493.6U CN202221574493U CN217787638U CN 217787638 U CN217787638 U CN 217787638U CN 202221574493 U CN202221574493 U CN 202221574493U CN 217787638 U CN217787638 U CN 217787638U
- Authority
- CN
- China
- Prior art keywords
- photoelectric conversion
- module
- conversion unit
- local
- branch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Optical Communication System (AREA)
- Selective Calling Equipment (AREA)
Abstract
The utility model discloses a photoelectric conversion device for a hydroelectric control system, which is used for photoelectric signal conversion between a local IO branch and a remote-end extended IO branch of the hydroelectric control system; the photoelectric conversion device comprises a local photoelectric conversion unit and a remote photoelectric conversion unit; one end of the local photoelectric conversion unit is connected with an IO _ BUS interface of the local IO branch, the other end of the local photoelectric conversion unit is connected with one end of the far-end photoelectric conversion unit, and the other end of the far-end photoelectric conversion unit is connected with the IO _ BUS interface of the far-end expanded IO branch; the utility model discloses utilize local photoelectric conversion unit and distal end photoelectric conversion unit to realize the conversion between optical signal and the signal of telecommunication, utilize local photoelectric conversion unit can expand local IO branch to the distal end, promoted communication efficiency and security between main control room equipment and the distal end system on the spot equipment.
Description
Technical Field
The utility model belongs to the technical field of water and electricity control system, in particular to be used for water and electricity control system photoelectric conversion device.
Background
The hydropower control system is the core of the control of the hydropower equipment, and the communication implementation modes between each hydropower control system controller and each type of IO equipment connected below the controller are various; for example: the method is realized through a Profibus DP protocol, an EtherCAT protocol or a free protocol; in a hydroelectric power plant, because the equipment is widely distributed, the wiring distance between main control room equipment and remote on-site system equipment reaches thousands of meters, and the remote communication problem is faced when the data of the controllers of the remote on-site system equipment and the main control room equipment are interacted; at present, remote communication between the existing controller and remote IO equipment mostly passes through hard connecting wires, and the problems of low communication rate and low communication efficiency exist.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model provides a be used for water and electricity control system photoelectric conversion device to there is communication speed low, the lower technical problem of communication efficiency in the remote communication of solving between current controller and the distal end IO equipment.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a photoelectric conversion device for a hydroelectric control system, which is used for photoelectric signal conversion between a local IO branch and a remote-end extended IO branch of the hydroelectric control system; the photoelectric conversion device comprises a local photoelectric conversion unit 1 and a far-end photoelectric conversion unit;
one end of the local photoelectric conversion unit is connected with an IO _ BUS interface of a local IO branch, the other end of the local photoelectric conversion unit is connected with one end of the far-end photoelectric conversion unit, and the other end of the far-end photoelectric conversion unit is connected with the IO _ BUS interface of a far-end expanded IO branch;
the local photoelectric conversion unit is configured to convert an electrical signal output by the local IO branch into an output optical signal, and send the output optical signal to the remote photoelectric conversion unit; or used for converting the optical signal output by the far-end photoelectric conversion unit into an input electric signal and sending the input electric signal to the local IO branch;
the far-end photoelectric conversion unit is used for converting the electric signal output from the far-end extended IO branch into an input optical signal and sending the input optical signal to the local photoelectric conversion unit; or the optical signal output by the local photoelectric conversion unit is converted into an outgoing electrical signal, and the outgoing electrical signal is sent to the remote expansion IO branch.
Further, the local photoelectric conversion unit and the remote photoelectric conversion unit have the same structure, and each of the local photoelectric conversion unit and the remote photoelectric conversion unit includes a power module, a first transceiver, a second transceiver, an FPGA module, a first optical port transmission module TX1, a second optical port transmission module TX2, a first optical port reception module RX1, and a second optical port reception module RX2;
in the local photoelectric conversion unit, a first output end of the power supply module is connected with a kernel power supply interface of the FPGA module, and a second output end of the power supply module is connected with an IO power supply interface of the FPGA module;
the first end of the first transceiver is connected with a first IO pin of the FPGA module, and the second end of the first transceiver is connected with an IO _ BUSA interface of a local IO branch; a first end of the second transceiver is connected with a second IO pin of the FPGA module, and a second end of the second transceiver is connected with an IO _ BUSB interface of a local IO branch;
a first end of the first optical port transmission module TX1 is connected to the third IO pin of the FPGA module, and a second end of the first optical port transmission module TX1 is connected to the first optical port receiving module RX1 in the far-end photoelectric conversion unit; a first end of the second optical port transmitting module TX2 is connected to a fourth IO pin of the FPGA module, and a second end of the second optical port transmitting module TX2 is connected to a second optical port receiving module RX2 in the far-end photoelectric conversion unit; a first end of the first optical port receiving module RX1 is connected to a fifth IO pin of the FPGA module, and a second end of the first optical port receiving module RX1 is connected to a first optical port transmitting module TX1 in the far-end photoelectric conversion unit; a first end of the second optical port receiving module RX2 is connected to the sixth IO pin of the FPGA module, and a second end of the second optical port receiving module RX2 is connected to the second optical port transmitting module TX2 in the far-end photoelectric conversion unit.
Furthermore, the system also comprises a dial switch module; a signal port of the dial switch module is connected with a seventh IO pin of the FPGA module; the dial switch module is used for sending a switch instruction to the FPGA module; the switching instruction comprises a baud rate setting instruction and a working mode switching instruction.
Furthermore, the power module comprises a first power module, a second power module, a port protection circuit, a DCDC isolation module, a first DCDC converter and a second DCDC converter;
the first power supply module and the second power supply module are used as two-way redundant power supply modules; the output end of the first power supply module is connected with the first input end of the port protection circuit, and the output end of the second power supply module is connected with the second input end of the port protection circuit;
the output end of the port protection circuit is connected with the input end of the DCDC isolation module; the first output end of the DCDC isolation module is connected with the input end of a first DCDC converter, and the output end of the first DCDC converter is connected with the kernel power interface of the FPGA module; the second output end of the DCDC isolation module is connected with the input end of the second DCDC converter; and the output end of the second DCDC converter is connected with an IO power supply interface of the FPGA module.
Furthermore, the DCDC isolation module adopts URB2405ZP-6WR3 to isolate the power supply module.
Further, the first DCDC converter and the second DCDC converter both adopt SY8032 type DCDC converters.
Further, the FPGA module is a PGL22G-6IFBG256 type FPGA chip.
Further, the first transceiver and the second transceiver both adopt RS485 transceivers of TPT481 type.
Furthermore, the first optical port transmission module TX1 and the second optical port transmission module TX2 both use HFBR-1414 type fiber emitters; the first optical port receiving module RX1 and the second optical port receiving module RX2 both use an AFBR-2419 type optical fiber receiver.
Further, the local photoelectric conversion unit and the local IO branch adopt IO _ BUS communication with own protocol, and the remote photoelectric conversion unit and the remote expanded IO branch adopt IO _ BUS communication with own protocol; and the local photoelectric conversion unit is connected with the far-end photoelectric conversion unit by adopting an optical fiber.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a be used for water and electricity control system photoelectric conversion device, through set up local photoelectric conversion unit and distal end photoelectric conversion unit between local IO branch and distal end extension IO branch, utilize local photoelectric conversion unit and distal end photoelectric conversion unit to realize the conversion between light signal and the signal of telecommunication, utilize local photoelectric conversion unit can be with local IO branch extension to the distal end, effectively promoted communication efficiency and security between main control room equipment and the distal end system on the spot equipment among the water and electricity control system.
Further, an IO-BUS interface of the local IO branch is connected to the local photoelectric conversion unit, a first transceiver and a second transceiver which are respectively connected with the IO-BUSA interface and the IO-BUSB interface of the local IO branch are reserved in the local photoelectric conversion unit, a message verification mechanism is designed at the transceivers, and problems such as network storms can be filtered through the complete verification mechanism; the local photoelectric conversion unit checks the message sent by the local IO branch through a preset message checking mechanism, and then sends the message to the far-end photoelectric conversion unit through the optical port sending module; the far-end photoelectric conversion unit is used for converting optical signals into electric signals, and the IO-BUS interface of the far-end expansion IO branch receives the electric signals to complete corresponding instruction operation, so that the problems that the application cost of a traditional optical network switch is high and the network blocking phenomenon exists when a network storm occurs are effectively solved.
Drawings
Fig. 1 is a schematic diagram of a connection structure of a photoelectric conversion device according to an embodiment, a local IO branch, and a remote extended IO branch;
fig. 2 is a block diagram of a local photoelectric conversion unit or a remote photoelectric conversion unit in the embodiment;
fig. 3 is a device layout diagram of a local photoelectric conversion unit or a remote photoelectric conversion unit in the embodiment.
Wherein, 1 local photoelectric conversion unit, 2 remote photoelectric conversion unit.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution and the beneficial effects thereof are more clearly understood, and the following detailed description is made for the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
Take the communication process between the main control room equipment and the remote local system equipment in a certain hydroelectric control system as an example.
As shown in fig. 1, the present embodiment provides a photoelectric conversion device for a hydroelectric control system, where the photoelectric conversion device is used for photoelectric signal conversion between a local IO branch and a remote extended IO branch of the hydroelectric control system; the photoelectric conversion device comprises a local photoelectric conversion unit 1 and a remote photoelectric conversion unit 2.
An RJ45 port of the local photoelectric conversion unit 1 is connected with an IO _ BUS interface of a local IO branch, an optical port of the local photoelectric conversion unit 1 is connected with an optical port of the remote photoelectric conversion unit 2, and an RJ45 port of the remote photoelectric conversion unit 2 is connected with an IO _ BUS interface of a remote expansion IO branch; the local photoelectric conversion unit 1 is configured to convert an electrical signal output by the local IO branch into an output optical signal, and send the output optical signal to the remote photoelectric conversion unit 2; or for converting the optical signal output by the far-end photoelectric conversion unit 2 into an input electrical signal and sending the input electrical signal to the local IO branch; the far-end photoelectric conversion unit 2 is configured to convert an electrical signal output from the far-end extended IO branch into an input optical signal, and send the input optical signal to the local photoelectric conversion unit 1; or is used to convert the optical signal output by the local photoelectric conversion unit 1 into an outgoing electrical signal and send the outgoing electrical signal to the remote expansion IO branch.
In this embodiment, the local IO branch includes a controller base, a local IO branch adapter, and a local IO base; the controller base is internally provided with 6 paths of redundant IO _ BUS interfaces, and each path of redundant IO _ BUS interface can be connected with one path of local IO branch adapter or local photoelectric conversion unit 1; each path of redundant IO _ BUS interface comprises an IO _ BUSA interface and an IO _ BUSB interface; the local IO branch adapter is connected with the local IO board card through the local IO base; the local IO base supports maximum connection of 10 local IO board cards; each local IO board card can be configured with a local controller, the local controller is communicated with the local IO board card through an own protocol IO _ BUS, and the rate is 5Mbps; the remote-end expansion IO branch comprises a remote-end expansion IO branch adapter and a remote-end IO base, one end of the remote-end expansion IO branch adapter is connected with the remote-end photoelectric conversion unit 2, and the other end of the remote-end expansion IO branch adapter is connected with the remote-end IO board card through the remote-end IO base; the remote IO base supports maximum connection of 10 remote IO board cards; and each far-end IO board card can be configured with a far-end controller, and the far-end controllers and the far-end IO board cards are communicated through an own protocol IO _ BUS.
As shown in fig. 2 and 3, the local photoelectric conversion unit 1 and the remote photoelectric conversion unit 2 in this embodiment have the same structure, and each of the local photoelectric conversion unit and the remote photoelectric conversion unit includes a power module, a first transceiver, a second transceiver, an FPGA module, a first optical port transmission module TX1, a second optical port transmission module TX2, a first optical port reception module RX1, a second optical port reception module RX2, and a dial switch module.
Taking the structure of the local photoelectric conversion unit as an example, the connection relationship between the modules is as follows:
the power supply module comprises a first power supply module, a second power supply module, a port protection circuit, a DCDC isolation module, a first DCDC converter and a second DCDC converter; the first power supply module and the second power supply module are used as double-path redundant power supply modules; preferably, the first power module and the second power module adopt 24V field power, the DCDC isolation module adopts a Kingyang URB2405ZP-6WR3 isolation power module, and the first DCDC converter and the second DCDC converter both adopt SY8032 type DCDC converters.
The output end of the first power supply module is connected with the first input end of the port protection circuit, and the output end of the second power supply module is connected with the second input end of the port protection circuit; the output end of the port protection circuit is connected with the input end of the DCDC isolation module; the first output end of the DCDC isolation module is connected with the input end of a first DCDC converter, and the output end of the first DCDC converter is connected with the kernel power interface of the FPGA module; the second output end of the DCDC isolation module is connected with the input end of the second DCDC converter; and the output end of the second DCDC converter is connected with an IO power supply interface of the FPGA module.
A first end of the first transceiver is connected with a first IO pin of the FPGA module, and a second end of the first transceiver is connected with an IO _ BUSA interface of a controller base in a local IO branch; a first end of the second transceiver is connected with a second IO pin of the FPGA module, and a second end of the second transceiver is connected with an IO _ BUSB interface of a controller base in a local IO branch; preferably, the first transceiver and the second transceiver are both provided with RJ45 interfaces; and the RJ45 interface is connected with the local IO branch or the remote-end expansion IO branch through a shielding network cable.
A first end of the first optical port transmission module TX1 is connected to the third IO pin of the FPGA module, and a second end of the first optical port transmission module TX1 is connected to the first optical port receiving module RX1 in the far-end photoelectric conversion unit 2; a first end of the second optical port transmitting module TX2 is connected to the fourth IO pin of the FPGA module, and a second end of the second optical port transmitting module TX2 is connected to the second optical port receiving module RX2 in the far-end photoelectric conversion unit 2.
A first end of the first optical port receiving module RX1 is connected to the fifth IO pin of the FPGA module, and a second end of the first optical port receiving module RX1 is connected to the first optical port transmitting module TX1 in the far-end photoelectric conversion unit 2; a first end of a second optical port receiving module RX2 is connected to the sixth IO pin of the FPGA module, and a second end of the second optical port receiving module RX2 is connected to a second optical port transmitting module TX2 in the far-end photoelectric conversion unit 2; a signal port of the dial switch module is connected with a seventh IO pin of the FPGA module; the dial switch module is used for sending a switch instruction to the FPGA module; the switching instruction comprises a baud rate setting instruction and a working mode switching instruction.
In this embodiment, the specific structure and principle of the remote photoelectric conversion unit 2 are substantially the same as those of the local photoelectric conversion unit; the difference lies in that:
in the far-end photoelectric conversion unit 2, the second end of the first transceiver is connected with the IO _ BUSA interface of the far-end expansion IO branch adapter; the second end of the second transceiver is connected with an IO _ BUSB interface of the remote expanded IO branch adapter; other similar structures are not described in detail herein.
In the embodiment, the FPGA module adopts a PGL22G-6IFBG256 type FPGA chip created by purple light; the first transceiver and the second transceiver both adopt a Schrepps TPT481 type RS485 transceiver; the first optical port transmitting module TX1 and the second optical port transmitting module TX2 both adopt HFBR-1414 type optical fiber transmitters with high warfare; the first optical port receiving module RX1 and the second optical port receiving module RX2 both adopt AFBR-2419 type optical fiber receivers with high warfare; the dial switch module adopts an 8-bit dial switch.
The working principle is as follows:
when the photoelectric conversion device for the hydroelectric control system is used, a double-path redundant 24V field power supply is used as a power supply module of a local photoelectric conversion unit or a remote photoelectric conversion unit, and is converted and isolated by a DCDC isolation module after passing through a port protection circuit, so that DC24V is converted into a DC5V power supply for system work; one path of the DC5V power supply is converted into a DC1.1V power supply through a first DCDC converter and is used for supplying power to a core power supply of the FPGA module; the other way of DC5V power is converted into DC3.3V power through a second DCDC converter, and is used for IO power supply of the FPGA module.
In the process that the local IO branch communicates with the remote-end expansion IO branch through the photoelectric conversion device, when the local IO branch sends data, an electric signal output by the local IO branch is input to the FPGA module through the first transceiver or the second transceiver, is driven and converted to form an optical signal, and is transmitted to the remote-end photoelectric conversion unit through the optical fiber through the first optical port sending module TX1 or the second optical port sending module TX 2; when the local IO branch receives data, an optical signal output by the far-end photoelectric conversion device is input to the FPGA module from the first optical port transmitting module TX1 or the second optical port transmitting module TX2, is driven and converted to form an electric signal, and is transmitted to the local IO branch through the first transceiver or the second transceiver; the working principle of the far-end photoelectric conversion unit is similar to that of the local photoelectric conversion unit, and the description is omitted here; thus, the mutual conversion of the photoelectric signals is realized.
The utility model discloses a photoelectric conversion device for water and electricity control system is applied to and requires to avoid application occasions such as electromagnetic interference, thunderbolt, chemical corrosion or remote transmission, can make IO _ BUS BUS network realize the interconversion function of photoelectric medium in the physical layer, expands the physical length of IO _ BUS BUS to guarantee the security and the validity of data transmission; any pair of redundant IO _ BUSs of the controller base can be connected into an RJ45 interface of the local photoelectric conversion unit and connected into the remote photoelectric conversion unit through an optical port sending module of the local photoelectric conversion unit by optical fibers; in the far-end photoelectric conversion unit, firstly, the optical port receiving module receives an optical signal through an optical fiber, and then the RJ45 interface of the far-end photoelectric conversion unit is connected with the far-end expansion IO branch.
In the utility model, the photoelectric conversion device is used in cooperation with the Huanen Ruo Wo DCS; the photoelectric conversion device is used for expanding the local IO branch to a remote expanded IO branch; the IO-BUS of the local IO branch is connected to the photoelectric conversion device, an IO-BUSA interface and an IO-BUSB interface are reserved in the photoelectric conversion device, a message verification mechanism is designed, and problems such as network storms can be filtered through the complete verification mechanism; the local photoelectric conversion unit transmits the message to the remote photoelectric conversion unit through the optical port after passing the message check, the remote photoelectric conversion unit converts an optical signal into an electric signal, and the IO-BUS of the remote expanded IO branch receives the electric signal to complete corresponding instruction operation; compared with the traditional optical network switch, the application cost is high on one hand, and the network blocking phenomenon exists when the network storm occurs on the other hand.
The photoelectric conversion device of the utility model realizes the conversion between the optical signal and the electric signal by arranging the local photoelectric conversion unit and the far-end photoelectric conversion unit between the local IO branch and the far-end expansion IO branch, realizes the expansion of the local IO branch to the far end by using the local photoelectric conversion unit, and effectively improves the communication efficiency and the safety between the main control room equipment and the far-end local system equipment in the hydroelectric control system; meanwhile, the system has the characteristics of small communication delay, stable communication, small volume, convenience in installation and the like.
The above embodiment is only one of the embodiments that can realize the technical solution of the present invention, and the scope of the present invention is not limited only by the embodiment, but also includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention.
Claims (10)
1. The photoelectric conversion device is used for photoelectric signal conversion between a local IO branch and a remote extended IO branch of a hydroelectric control system; the photoelectric conversion device comprises a local photoelectric conversion unit and a remote photoelectric conversion unit;
one end of the local photoelectric conversion unit is connected with an IO _ BUS interface of a local IO branch, the other end of the local photoelectric conversion unit is connected with one end of the far-end photoelectric conversion unit, and the other end of the far-end photoelectric conversion unit is connected with the IO _ BUS interface of a far-end expanded IO branch;
the local photoelectric conversion unit is configured to convert an electrical signal output by the local IO branch into an output optical signal, and send the output optical signal to the remote photoelectric conversion unit; or the optical signal output by the far-end photoelectric conversion unit is converted into an input electric signal, and the input electric signal is sent to the local IO branch;
the far-end photoelectric conversion unit is used for converting the electric signal output from the far-end extended IO branch into an input optical signal and sending the input optical signal to the local photoelectric conversion unit; or the optical signal output by the local photoelectric conversion unit is converted into an outgoing electrical signal, and the outgoing electrical signal is sent to the remote expansion IO branch.
2. The photoelectric conversion device for the hydropower control system according to claim 1, wherein the local photoelectric conversion unit and the remote photoelectric conversion unit have the same structure, and each of the local photoelectric conversion unit and the remote photoelectric conversion unit comprises a power supply module, a first transceiver, a second transceiver, an FPGA module, a first optical port transmission module TX1, a second optical port transmission module TX2, a first optical port receiving module RX1 and a second optical port receiving module RX2;
in the local photoelectric conversion unit, a first output end of the power supply module is connected with a kernel power supply interface of the FPGA module, and a second output end of the power supply module is connected with an IO power supply interface of the FPGA module;
the first end of the first transceiver is connected with a first IO pin of the FPGA module, and the second end of the first transceiver is connected with an IO _ BUSA interface of a local IO branch; a first end of the second transceiver is connected with a second IO pin of the FPGA module, and a second end of the second transceiver is connected with an IO _ BUSB interface of a local IO branch;
a first end of the first optical port transmission module TX1 is connected to the third IO pin of the FPGA module, and a second end of the first optical port transmission module TX1 is connected to the first optical port receiving module RX1 in the far-end photoelectric conversion unit; a first end of the second optical port transmitting module TX2 is connected to a fourth IO pin of the FPGA module, and a second end of the second optical port transmitting module TX2 is connected to a second optical port receiving module RX2 in the far-end photoelectric conversion unit; a first end of the first optical port receiving module RX1 is connected to a fifth IO pin of the FPGA module, and a second end of the first optical port receiving module RX1 is connected to a first optical port transmitting module TX1 in the far-end photoelectric conversion unit; a first end of the second optical port receiving module RX2 is connected to the sixth IO pin of the FPGA module, and a second end of the second optical port receiving module RX2 is connected to the second optical port transmitting module TX2 in the far-end photoelectric conversion unit.
3. The photoelectric conversion device for the hydroelectric control system of claim 2, further comprising a dial switch module; a signal port of the dial switch module is connected with a seventh IO pin of the FPGA module; the dial switch module is used for sending a switch instruction to the FPGA module; the switching instruction comprises a baud rate setting instruction and a working mode switching instruction.
4. The photoelectric conversion device for the hydropower control system according to claim 2, wherein the power supply module comprises a first power supply module, a second power supply module, a port protection circuit, a DCDC isolation module, a first DCDC converter and a second DCDC converter;
the first power supply module and the second power supply module are used as two-way redundant power supply modules; the output end of the first power supply module is connected with the first input end of the port protection circuit, and the output end of the second power supply module is connected with the second input end of the port protection circuit;
the output end of the port protection circuit is connected with the input end of the DCDC isolation module; the first output end of the DCDC isolation module is connected with the input end of a first DCDC converter, and the output end of the first DCDC converter is connected with the kernel power interface of the FPGA module; the second output end of the DCDC isolation module is connected with the input end of the second DCDC converter; and the output end of the second DCDC converter is connected with an IO power supply interface of the FPGA module.
5. The photoelectric conversion device for the hydroelectric control system according to claim 4, wherein the DCDC isolation module adopts URB2405ZP-6WR3 to isolate the power supply module.
6. The photoelectric conversion device for the hydropower control system according to claim 4, wherein the first DCDC converter and the second DCDC converter are both SY8032 type DCDC converters.
7. The photoelectric conversion device for the hydroelectric control system of claim 2, wherein the FPGA module is a PGL22G-6IFBG256 FPGA chip.
8. The photoelectric conversion device for the hydroelectric control system of claim 2, wherein the first transceiver and the second transceiver are both RS485 transceivers of TPT481 type.
9. The photoelectric conversion device for the hydroelectric control system according to claim 2, wherein the first optical port transmission module TX1 and the second optical port transmission module TX2 both use HFBR-1414 type fiber emitters; the first optical port receiving module RX1 and the second optical port receiving module RX2 both use an AFBR-2419 type optical fiber receiver.
10. The photoelectric conversion device for the hydropower control system according to claim 1, wherein the local photoelectric conversion unit is in communication with the local IO branch through an IO _ BUS with a protocol of its own, and the remote photoelectric conversion unit is in communication with the remote extended IO branch through an IO _ BUS with a protocol of its own; and the local photoelectric conversion unit is connected with the far-end photoelectric conversion unit by adopting an optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221574493.6U CN217787638U (en) | 2022-06-22 | 2022-06-22 | Photoelectric conversion device for water and electricity control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221574493.6U CN217787638U (en) | 2022-06-22 | 2022-06-22 | Photoelectric conversion device for water and electricity control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217787638U true CN217787638U (en) | 2022-11-11 |
Family
ID=83936405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221574493.6U Active CN217787638U (en) | 2022-06-22 | 2022-06-22 | Photoelectric conversion device for water and electricity control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217787638U (en) |
-
2022
- 2022-06-22 CN CN202221574493.6U patent/CN217787638U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107241382B (en) | Data conversion method and device used between serial port and Ethernet | |
| CN201536427U (en) | Integrated base station antenna system | |
| CN201805421U (en) | Communication device between direct current (DC) protection systems and DC control systems | |
| CN217787638U (en) | Photoelectric conversion device for water and electricity control system | |
| CN108768530B (en) | Data transmission control system and method of optical fiber transceiver | |
| CN103227636A (en) | High-isolation direct splicing half-duplex communication interface module for interconnection of multiple controllers | |
| CN112260760B (en) | Nuclear power plant distributed control system field bus system based on optical loop | |
| CN202121600U (en) | Power failure directly connected Ethernet optical fiber exchanger protected by photoswitch | |
| CN203847102U (en) | CAN bus and 485 bus node circuit | |
| CN107682084A (en) | A kind of photoelectric communication conversion equipment and photoelectric communication system | |
| CN212935922U (en) | Remote centralized alarm system | |
| CN203618007U (en) | Multichannel Ethernet cable extender main terminal with optical port | |
| CN216122468U (en) | Double CAN redundant ring network communication gateway | |
| CN203193608U (en) | High isolation direct splice half-duplex communication interface module for interconnection of multiple controllers | |
| CN210093253U (en) | System for fusing PLC control system and control system of DALI protocol | |
| CN213072654U (en) | CKL-I type railway leakage coaxial cable monitoring system | |
| CN104753596A (en) | Multi-port terminal of passive beam splitting RS-485 optical fiber bus | |
| CN204013549U (en) | A kind of CAN bus network based on optical fiber communication | |
| CN216490537U (en) | Communication line connecting structure for each electric fire-fighting subsystem in factory | |
| CN201533316U (en) | Power-line carrier adapter and power-line carrier communication equipment provided therewith | |
| CN218213868U (en) | Multi-equipment parallel communication system | |
| CN105743581A (en) | Anti-interference high-speed differential isolation data asynchronous communication module | |
| CN212623689U (en) | Power on-off control circuit based on Ethernet | |
| CN201509189U (en) | 485 interface converter | |
| CN102820705A (en) | Intelligent broadband communication system based on power carrier transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |