CN103929241B - A kind of method of work of optical path switching interface mechanism for fiber channel test - Google Patents
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Abstract
The present invention relates to a kind of method of work of optical path switching interface mechanism for fiber channel test, the power end of the control module of switching-over light path interface agency is connected with control power supply, input is connected with button diverter switch, output is connected with driver module, light path handover module comprises two optomagnetic switches, four send optical fiber interface and four reception optical fiber interfaces, the output of driver module is connected with the control end of two optomagnetic switches respectively, the input of two optomagnetic switches and output and corresponding transmission optical fiber interface, reception optical fiber interface connects, the control signal of the light path handover module of corresponding conducting is provided by control module, got final product and protective relaying device by changeable optical-path interface mechanism, light power meter or Optical attenuator connect, the light path driving light path handover module to carry out multiplex roles by driver module again switches, normal running status can be entered and enter the test mode of protection test and optical-fibre channel test.
Description
The application is application number: 201010502186.2, and invention and created name is " optical path switching interface mechanism for fiber channel test of protective relaying device ", and the applying date is: the divisional application of the application for a patent for invention on September 29th, 2010.
Technical field
The present invention relates to a kind of method of work of optical path switching interface mechanism for fiber channel test of protective relaying device, belong to protective relaying device technical field.
Background technology
Secondary device in electric power system is used for monitoring the work of primary equipment, control, regulate, protect and for running, attendant provides operating condition or the low voltage electrical equipment produced needed for command signal, and relaying protection mechanism is important secondary loop in power system equipment.Along with the progressively popularization of intelligent substation and intelligent grid, its traditional cable communication mode replace by optic fiber beam sensor mode.The protection of 220kV and above optical-fibre channel is in protective calibration test and when measuring luminous power; need frequently fiber cable joint to be mounted and dismounted from protective relaying device; therefore be easy to cause the wearing and tearing of optical cable interface and optical fiber interface contact-making surface attenuation to increase; thus affect the accuracy of protective relaying device verification; even because optical cable interface damages, bring hidden danger to the safe and reliable operation of power circuit main protection.
And the verification of protector revise, especially optical-fibre channel that current optical fiber protecting equipment both domestic and external runs for scene not yet has standard and perfect checking process.
Summary of the invention
Object of the present invention provides a kind of without in the optical fiber interface situation of dismounting protective relaying device; switched by the light path of multiplex roles, the method for work of the optical path switching interface mechanism for fiber channel test of the protective relaying device of protection test and optical-fibre channel test job can be completed.
The present invention is the technical scheme achieved the above object: the method for work providing a kind of optical path switching interface mechanism for fiber channel test, described optical path switching interface mechanism for fiber channel test comprises: hood and the control module be arranged in hood, driver module and light path handover module, described control module is complicated programmable logic device, the power end of control module is connected with control power supply, the input of control module is connected with the button diverter switch of the running status be arranged on hood panel and test mode, the output of control module is connected with driver module, driver module is made up of Darlington transistor, described light path handover module comprises two optomagnetic switches, four send optical fiber interface and four reception optical fiber interfaces, the output of driver module is connected with the control end of two optomagnetic switches of light path handover module respectively, 2 × 2A/D magneto-optic shutter selected by optomagnetic switch, two inputs of the first optomagnetic K switch l meet the first transmission optical fiber interface TX1 and the 3rd respectively and send optical fiber interface TX3, two outputs of the first optomagnetic K switch l meet the second transmission optical fiber interface TX2 and the 4th respectively and send optical fiber interface TX4, two inputs of the second optomagnetic K switch 2 meet the second reception optical fiber interface RX2 and the 3rd respectively and receive optical fiber interface RX3, two outputs of the second optomagnetic K switch 2 meet the first reception optical fiber interface RX1 and the 4th respectively and receive optical fiber interface RX4, described hood panel is positioned at each transmission optical fiber interface and each reception optical fiber interface place is separately installed with optical fiber interface indicator light group, and the output of control module is connected with optical fiber interface indicator light group,
The method of work of this optical path switching interface mechanism for fiber channel test comprises: respectively send optical fiber interface during use and be connected with the optical fiber interface on protective relaying device and light power meter or Optical attenuator by the optical fiber of two ends with joint with reception optical fiber interface;
Switched between " normal condition " and " test mode " by pressing button diverter switch, the input signal of the button diverter switch on panel is gathered by control module, after logical transition, control the conducting of two magneto-optic shutters or closedown by driver module thus carry out light path switching;
While completing light path switching, control module controls the display of corresponding optical fiber interface indicator light.
Further, when pressing the button diverter switch and entering running status, the transmission anode TXa that signal is protected through this side of protective relaying device, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l and the first output OUT1, after second transmission optical fiber interface TX2, the reception negative terminal RXb of access protective relaying device offside protection, through the transmission negative terminal TXb of offside protection, second receives optical fiber interface RX2, enter the second input IN2 of the second optomagnetic K switch 2, first output OUT1, the reception anode RXa that optical fiber interface RX1 enters the protection of this side is received by first, now protective relaying device enters normal operation,
When pressing the button diverter switch and entering test mode, switching-over light path passage, by external short fiber, the 4th transmission optical fiber interface TX4 and the 3rd is received optical fiber interface RX3 to be connected, the now transmission anode TXa that protects through this side of protective relaying device of signal, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l, second output OUT2, 4th sends optical fiber interface TX4, 3rd receives optical fiber interface RX3, enter the first input end IN1 of the second optomagnetic K switch 2, again through the first output OUT1, the reception anode RXa that optical fiber interface RX1 enters this protection side, side is received by first, carry out this side protection from ring,
When pressing the button diverter switch and entering test mode, switching-over light path passage, its the 4th transmission optical fiber interface TX4 connects light power meter, now the transmission anode TXa of signal through this protection side, side of protective relaying device, first sends the second input IN2 of optical fiber interface TX1, the first optomagnetic K switch l, send optical fiber interface TX4 and light power meter through the second output OUT2, the 4th again, the test of this side protection luminous power can be carried out;
When pressing the button diverter switch and entering test mode, switching-over light path passage, 4th receives optical fiber interface RX4 connects light power meter, the transmission negative terminal TXb, second that now signal is protected through protective relaying device offside receives optical fiber interface RX2, the second input IN2 of the second optomagnetic K switch 2, Ran receives optical fiber interface RX4 and light power meter through the second output OUT2, the 4th, carries out the test of offside protection luminous power;
When pressing the button diverter switch and entering test mode, switching-over light path passage, Optical attenuator is connected on the 4th and receives between optical fiber interface RX4 and the 3rd reception optical fiber interface RX3, now signal is through the transmission negative terminal TXb of the offside protection side of protective relaying device, second receives optical fiber interface RX2, second input IN2 of the second optomagnetic K switch 2, again through the second output OUT2, 4th receives optical fiber interface RX4, Optical attenuator, 3rd receives optical fiber interface RX3, through the first input end IN1 of the second optomagnetic K switch 2, first output OUT1, the reception anode RXa that optical fiber interface RX1 enters the protection of this side is received finally by first, carry out the test of passage surplus.
Apply switching-over light path interface agency of the present invention and comprise control module, driver module and light path handover module, control module is CPLD, cheap, powerful, and control logic cocoa customizes arbitrarily as requested.Light path handover module of the present invention adopts magneto-optic shutter to be connected with sending optical fiber interface and receive optical fiber interface, realize passive light to switch, the high speed being conducive to light path switches, and magneto-optic shutter has, and time response is fast, switching time is short, loss is little, light path character changes little and controls simple feature, the control signal of the light path handover module of corresponding conducting is provided by control module, then is switched by the light path that driver module drives light path handover module to carry out multiplex roles.The present invention is due to without the need to the fiber cable joint on dismounting protective relaying device; can be connected with protective relaying device, light power meter or Optical attenuator by changeable optical-path interface mechanism; switch through light path; normal running status can be entered and enter the test mode of protection test and optical-fibre channel test; solve the frequent dismounting of optical fiber splice on protective relaying device and problem that the loose contact problem that causes and optical fiber interface damage, for raising scene protection School Affairs maintenance levels, there is important function.
Accompanying drawing explanation
Do further carefully to state in detail to embodiments of the invention below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention.
Fig. 2 is theory diagram of the present invention.
Fig. 3 is that light path handover module of the present invention is protected with this side and testedly protects the electrical schematic diagram be connected.
Wherein: 1-hood, 2-optical fiber interface indicator light group, 3-button diverter switch, 4-status indicator lamp, 5-controls power supply, 6-control module, 7-driver module, 8-driving power, 9-light path handover module.
Embodiment
See shown in Fig. 1 ~ 3, the optical path switching interface mechanism for fiber channel test of the present embodiment, comprise hood l and be arranged on the control module 6 in hood l, driver module 7 and light path handover module 9, control module 6 of the present invention is complicated programmable logic device, this complicated programmable logic device adopts altera corp to manufacture, by the switching signal that control module 6 inputs to provide the light path handover module 9 of corresponding conducting, the power end of control module 6 is connected with control power supply 5, this control power supply 5 takes DC24V, its power consumption is the smaller the better, the input of control module 6 is connected with the button diverter switch 3 of the running status of installing on hood l panel and test mode, this button diverter switch 3 presses at each, switch between " normal condition " and " test mode ", the input signal of the button diverter switch 3 on panel is gathered by control module 6, after logical transition, conducting or the closedown of two magneto-optic shutters is controlled by driver module 7, to reach the object that light path switches.As shown in Figure 2, the output of control module 6 of the present invention is connected with driver module 7, driver module 7 is made up of Darlington transistor, conventional one-level NPN Darlington triode can be adopted, the base stage of Darlington triode is made to connect the output of control module 6, collector and emitter is connected with the input of two optomagnetic switches of light path handover module 9 respectively, and control module 6 drives the action of two magneto-optic shutters by driver module 7, the external independent driving power 8 of driver module 7 of the present invention.See Fig. 2, shown in 3, light path handover module 9 of the present invention comprises at least two optomagnetic switches, the reception optical fiber interface of the transmission optical fiber interface of more than four and more than four, this control module 6, driver module 7 and two optomagnetic switches all weld on circuit boards, circuit board is arranged in hood l by insulation board or insulating barrier, each transmission optical fiber interface of the present invention and reception optical fiber interface can adopt a PC/FC optical fiber splice, and be separately fixed at the both sides of hood l, be connected with the optical fiber interface on protective relaying device and light power meter or Optical attenuator by the optical fiber of two ends with joint, reach the object of protection test and optical-fibre channel test job.As shown in Figure 2, the top of hood l of the present invention is respectively equipped with power interface, serial communication interface and locking interface etc., the output of driver module 7 is connected with the control end of two optomagnetic switches of light path handover module 9 respectively, to control the action of each optomagnetic switch respectively, optomagnetic switch selectable 2 × 2A/D magneto-optic shutter, two inputs of the first optomagnetic K switch l meet the first transmission optical fiber interface TX1 and the 3rd respectively and send optical fiber interface TX3, and two outputs of the first optomagnetic K switch l meet the second transmission optical fiber interface TX2 and the 4th respectively and send optical fiber interface TX4; Two inputs of the second optomagnetic K switch 2 meet the second reception optical fiber interface RX2 and the 3rd respectively and receive optical fiber interface RX3; two outputs of the second optomagnetic K switch 2 meet the first reception optical fiber interface RX1 and the 4th respectively and receive optical fiber interface RX4; during use; send optical fiber interface TX1 and first to receive the transmission anode TXa that optical fiber interface RX1 and this side of protective relaying device protect and receives anode RXa be connected first, the transmission negative terminal TXb that protects of the second reception optical fiber interface RX2 and second transmission optical fiber interface TX2 and offside with receive negative terminal RXb and be connected.
As shown in Figure 1, the optical path switching interface mechanism for fiber channel test of the present embodiment is positioned at each transmission optical fiber interface and each reception optical fiber interface place is separately installed with each optical fiber interface indicator light at hood l panel, and the output of control module 6 is connected with each optical fiber interface indicator light group 2, while completing light path switching, control module 6 controls the display of corresponding optical fiber interface indicator light.Same hood l panel is also provided with the status indicator lamp 4 of running status and the status indicator lamp 4 of test mode, the output of same control module 6 is connected with each status indicator lamp 4, press switch between " normal condition " and " test mode " time, shown the state of input signal by status indicator lamp 4.
As shown in Figure 3, when the optical path switching interface mechanism for fiber channel test of the present embodiment works, when pressing the button diverter switch 3 and entering running status, the transmission anode TXa that signal is protected through this side of protective relaying device, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l and the first output OUT1, after second transmission optical fiber interface TX2, the reception negative terminal RXb of access protective relaying device offside protection, through the transmission negative terminal TXb of offside protection, second receives optical fiber interface RX2, enter the second input IN2 of the second optomagnetic K switch 2, first output OUT1, the reception anode RXa that optical fiber interface RX1 enters the protection of this side is received by first, now protective relaying device enters normal operation.
As shown in Figure 3, when the optical path switching interface mechanism for fiber channel test of the present embodiment works, when pressing the button diverter switch 3 and entering test mode, switching-over light path passage, by external short fiber, the 4th transmission optical fiber interface TX4 and the 3rd is received optical fiber interface RX3 to be connected, the now transmission anode TXa that protects through this side of protective relaying device of signal, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l, second output OUT2, 4th sends optical fiber interface TX4, 3rd receives optical fiber interface RX3, enter the first input end IN1 of the second optomagnetic K switch 2, again through the first output OUT1, the reception anode RXa that optical fiber interface RX1 enters this protection side, side is received by first, carry out this side protection from ring.
As shown in Figure 3; when the optical path switching interface mechanism for fiber channel test of the present embodiment works; when pressing the button diverter switch 3 and entering test mode; switching-over light path passage; its the 4th transmission optical fiber interface TX4 connects light power meter; now the transmission anode TXa of signal through this protection side, side of protective relaying device, first sends the second input IN2 of optical fiber interface TX1, the first optomagnetic K switch l; send optical fiber interface TX4 and light power meter through the second output OUT2, the 4th again, the test of this side protection luminous power can be carried out.
As shown in Figure 3; when the optical path switching interface mechanism for fiber channel test of the present embodiment works; when pressing the button diverter switch 3 and entering test mode; switching-over light path passage; 4th receives optical fiber interface RX4 connects light power meter; the transmission negative terminal TXb, second that now signal is protected through protective relaying device offside receives optical fiber interface RX2, the second input IN2 of the second optomagnetic K switch 2, Ran receives optical fiber interface RX4 and light power meter through the second output OUT2, the 4th, carries out the test of offside protection luminous power.
As shown in Figure 3, when the optical path switching interface mechanism for fiber channel test of the present embodiment works, when pressing the button diverter switch 3 and entering test mode, switching-over light path passage, Optical attenuator is connected on the 4th and receives between optical fiber interface RX4 and the 3rd reception optical fiber interface RX3, now signal is through the transmission negative terminal TXb of the offside protection side of protective relaying device, second receives optical fiber interface RX2, second input IN2 of the second optomagnetic K switch 2, again through the second output OUT2, 4th receives optical fiber interface RX4, Optical attenuator, 3rd receives optical fiber interface RX3, through the first input end IN1 of the second optomagnetic K switch 2, first output OUT1, the reception anode RXa that optical fiber interface RX1 enters the protection of this side is received finally by first, carry out the test of passage surplus.
Claims (1)
1. the method for work of an optical path switching interface mechanism for fiber channel test, it is characterized in that described optical path switching interface mechanism for fiber channel test comprises: hood and the control module be arranged in hood, driver module and light path handover module, described control module is complicated programmable logic device, the power end of control module is connected with control power supply, the input of control module is connected with the button diverter switch of the running status be arranged on hood panel and test mode, the output of control module is connected with driver module, driver module is made up of Darlington transistor, described light path handover module comprises two optomagnetic switches, four send optical fiber interface and four reception optical fiber interfaces, the output of driver module is connected with the control end of two optomagnetic switches of light path handover module respectively, 2 × 2A/D magneto-optic shutter selected by optomagnetic switch, two inputs of the first optomagnetic K switch l meet the first transmission optical fiber interface TX1 and the 3rd respectively and send optical fiber interface TX3, two outputs of the first optomagnetic K switch l meet the second transmission optical fiber interface TX2 and the 4th respectively and send optical fiber interface TX4, two inputs of the second optomagnetic K switch 2 meet the second reception optical fiber interface RX2 and the 3rd respectively and receive optical fiber interface RX3, two outputs of the second optomagnetic K switch 2 meet the first reception optical fiber interface RX1 and the 4th respectively and receive optical fiber interface RX4, described hood panel is positioned at each transmission optical fiber interface and each reception optical fiber interface place is separately installed with optical fiber interface indicator light group, and the output of control module is connected with optical fiber interface indicator light group,
The method of work of this optical path switching interface mechanism for fiber channel test comprises: respectively send optical fiber interface during use and be connected with the optical fiber interface on protective relaying device and light power meter or Optical attenuator by the optical fiber of two ends with joint with reception optical fiber interface;
When pressing the button diverter switch and entering running status, the transmission anode TXa that signal is protected through this side of protective relaying device, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l and the first output OUT1, after second transmission optical fiber interface TX2, the reception negative terminal RXb of access protective relaying device offside protection, through the transmission negative terminal TXb of offside protection, second receives optical fiber interface RX2, enter the second input IN2 of the second optomagnetic K switch 2, first output OUT1, the reception anode RXa that optical fiber interface RX1 enters the protection of this side is received by first, now protective relaying device enters normal operation,
When pressing the button diverter switch and entering test mode, switching-over light path passage, by external short fiber, the 4th transmission optical fiber interface TX4 and the 3rd is received optical fiber interface RX3 to be connected, the now transmission anode TXa that protects through this side of protective relaying device of signal, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l, second output OUT2, 4th sends optical fiber interface TX4, 3rd receives optical fiber interface RX3, enter the first input end IN1 of the second optomagnetic K switch 2, again through the first output OUT1, the reception anode RXa that optical fiber interface RX1 enters this protection side, side is received by first, carry out this side protection from ring,
When pressing the button diverter switch and entering test mode, switching-over light path passage, its the 4th transmission optical fiber interface TX4 connects light power meter, now the transmission anode TXa of signal through this protection side, side of protective relaying device, first sends the second input IN2 of optical fiber interface TX1, the first optomagnetic K switch l, send optical fiber interface TX4 and light power meter through the second output OUT2, the 4th again, the test of this side protection luminous power can be carried out;
When pressing the button diverter switch and entering test mode, switching-over light path passage, 4th receives optical fiber interface RX4 connects light power meter, the transmission negative terminal TXb, second that now signal is protected through protective relaying device offside receives optical fiber interface RX2, the second input IN2 of the second optomagnetic K switch 2, Ran receives optical fiber interface RX4 and light power meter through the second output OUT2, the 4th, carries out the test of offside protection luminous power;
When pressing the button diverter switch and entering test mode, switching-over light path passage, Optical attenuator is connected on the 4th and receives between optical fiber interface RX4 and the 3rd reception optical fiber interface RX3, now signal is through the transmission negative terminal TXb of the offside protection side of protective relaying device, second receives optical fiber interface RX2, second input IN2 of the second optomagnetic K switch 2, again through the second output OUT2, 4th receives optical fiber interface RX4, Optical attenuator, 3rd receives optical fiber interface RX3, through the first input end IN1 of the second optomagnetic K switch 2, first output OUT1, the reception anode RXa that optical fiber interface RX1 enters the protection of this side is received finally by first, carry out the test of passage surplus,
While completing light path switching, control module controls the display of corresponding optical fiber interface indicator light.
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| CN201410132150.8A CN103929241B (en) | 2010-09-29 | 2010-09-29 | A kind of method of work of optical path switching interface mechanism for fiber channel test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410132150.8A CN103929241B (en) | 2010-09-29 | 2010-09-29 | A kind of method of work of optical path switching interface mechanism for fiber channel test |
| CN201010502186.2A CN101969341B (en) | 2010-09-29 | 2010-09-29 | Optical path switching interface mechanism for fiber channel test of relay protection device |
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| CN201010502186.2A Division CN101969341B (en) | 2010-09-29 | 2010-09-29 | Optical path switching interface mechanism for fiber channel test of relay protection device |
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| CN103929241B true CN103929241B (en) | 2016-04-13 |
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| EP1313346A1 (en) * | 2001-11-16 | 2003-05-21 | Alcatel | Method and apparatus of determining loss characteristics in DWDM links |
| CN1538642A (en) * | 2003-04-15 | 2004-10-20 | 中兴通讯股份有限公司 | Device of full light network reusing segment shared protection |
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Free format text: CORRECT: INVENTOR; FROM: DONG ZUCHEN TO: FAN ZHONG XU ZHEN DONG ZUCHEN |
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