CN103528624B - The comprehensive on-line real-time measuremen of optical fiber type pantograph and control system - Google Patents
The comprehensive on-line real-time measuremen of optical fiber type pantograph and control system Download PDFInfo
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- CN103528624B CN103528624B CN201310487863.1A CN201310487863A CN103528624B CN 103528624 B CN103528624 B CN 103528624B CN 201310487863 A CN201310487863 A CN 201310487863A CN 103528624 B CN103528624 B CN 103528624B
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Abstract
The comprehensive on-line real-time measuremen of optical fiber type pantograph disclosed by the invention and control system, relate to the comprehensive on-line real-time measuremen of pantograph for railway locomotive or railcar or motor train unit etc. and control technology, belongs to train safe and travel monitoring field.Optical fiber type pantograph carbon slide abrasion Real-time and On-line and optical fiber type pantograph lift-up pressure Real-time and On-line are integrated in one by the present invention.Optical fiber type pantograph carbon slide abrasion Real-time and On-line is for detecting pantograph carbon slide abrasion situation.Optical fiber type pantograph lift-up pressure Real-time and On-line is for recording the lift-up pressure value F of pantograph carbon slide
c.Air bag controlled valve is controlled, adjustment pantograph carbon slide lift-up pressure F according to preset
cand contact condition, avoid the situation such as off-grid, holder net, meanwhile, the detection system described in utilization can extend the serviceable life of pantograph carbon slide, and improves train current carrying quality, ensures safe train operation.
Description
Technical field
The present invention relates to the comprehensive on-line real-time measuremen of a kind of pantograph based on Optical Fiber Transmission principle and control technology, particularly relate to the comprehensive on-line real-time measuremen of pantograph for railway locomotive or railcar or motor train unit etc. and control technology, belong to train safe and travel monitoring field.
Background technology
Fibre Optical Sensor is at present fast-developing New Sensing Technology, the advantage such as have good insulating, electromagnetism interference, environmental corrosion resisting, highly sensitive, transmission range is long, structure is dexterous; The pantograph carbon slide abrasion of railway locomotive or railcar or motor train unit etc. and contact force state are the key problems of the pantograph contact line relation of railway locomotive or railcar or motor train unit etc.The real-time change of real-time online detection system foundation contact value and wearing valve adjusts the good contact between pantograph and contact net in time, is to ensure that can train obtain the important step of enough traction powers, significant.Pantograph is the important diversion component obtaining electric power with power transmission network, thus require that used sensor need possess the characteristic of withstand high pressures and strong electromagnetic, the remarkable advantages such as optical fiber sensing technology has anti-electromagnetism, anti-high pressure, scene is adaptable, monitoring is reliable, structure is dexterous.
The contrast of existing conventional method: the adjusting gear of the contact of pantograph and contact net now, just rely on by driving the change of intracapsular pressure value to adjust to current collecting bow lifting, the method cannot accomplish to adjust in time, accurately to the contact of pantograph and contact net, and error is larger.
Summary of the invention
Technical matters solved by the invention is Real-Time Monitoring pantograph carbon slide wearing valve, pantograph carbon slide lift-up pressure F
c, and to pantograph carbon slide wearing valve and pantograph carbon slide lift-up pressure F
ccomprehensive Comparison, automatically adjusts to the lifting of pantograph, realizes pantograph carbon slide and contacts with the optimum of power supply network, and described optimum contact refers to that pantograph carbon slide contacts with power supply network and meets preset.
The present invention exports according to preset the lift-up pressure F that the feedback signal being used for Controlling solenoid valve adjusts pantograph and contact net in good time
cand contact condition, effectively avoid the situation such as off-grid, holder net, meanwhile, the detection system described in utilization can extend the serviceable life of pantograph carbon slide, and improves train current carrying quality, ensures safe train operation.
The object of the invention is to be achieved through the following technical solutions.
The comprehensive on-line real-time measuremen of optical fiber type pantograph of the present invention and control system optical fiber type pantograph carbon slide are worn away Real-time and On-line and optical fiber type pantograph lift-up pressure Real-time and On-line is integrated in one.Optical fiber type pantograph carbon slide abrasion Real-time and On-line is for detecting pantograph carbon slide abrasion situation.Optical fiber type pantograph lift-up pressure Real-time and On-line is for recording the lift-up pressure value F of pantograph carbon slide
c.By signal processing unit system to pantograph carbon slide wearing valve and pantograph carbon slide lift-up pressure F
ccomprehensive Comparison, exports the feedback signal for controlling air bag controlled valve according to preset, in good time the lift-up pressure F of adjustment pantograph carbon slide and contact net
cand contact condition, effectively avoid the situation such as off-grid, holder net, meanwhile, the detection system described in utilization can extend the serviceable life of pantograph carbon slide, and improves train current carrying quality, ensures safe train operation.
Described preset is: (1) pantograph carbon slide when pantograph carbon slide wearing valve is greater than abrasion threshold value reaches the upper limit in serviceable life, changes pantograph carbon slide; (2) as pantograph carbon slide lift-up pressure F
cbe less than reasonable lift-up pressure F
cduring range lower limit, promoting pantograph carbon slide height increases lift-up pressure F suffered by it
c, effectively avoid off-grid, improve current carrying quality, ensure safe train operation; When being subject to pantograph carbon slide lift-up pressure F
cbe greater than reasonable lift-up pressure F
cduring range limit, reduce pantograph carbon slide height and reduce lift-up pressure F suffered by it
c, and then prevent pantograph holder net from causing contact net and carbon slipper damage.(3) when exceptional value appears in pantograph carbon slide wearing valve, according to pantograph carbon slide lift-up pressure F
ccomprehensive Comparison, and same alarm, undertaken judging whether fall bow operation or automatically carry out falling bow operation by trainman.(4) when locomotive is by when flowing out existing exception, according to pantograph carbon slide wearing valve and pantograph carbon slide lift-up pressure F
ccomprehensive Comparison, is undertaken judging whether to carry out falling bow operation by trainman.Wherein, threshold value, rationally lift-up pressure F is worn away
cscope can adjust, as use occasions such as high ferro, motor-car, subways according to carbon slipper kind, carbon slipper use occasion difference.
Described pantograph carbon slide wearing and tearing are all wear and tear successively from upper surface to lower surface, and when wearing valve is greater than preset, pantograph carbon slide reaches the upper limit in serviceable life, changes pantograph carbon slide.
Described optical fiber type pantograph carbon slide abrasion Real-time and On-line, comprises light source, multi-core fiber plug, optical fiber type abrasion sensor, photoelectrical coupler, signal processing unit.
Light source selects infrared band LED or visible light wave range LED.
Multi-core fiber plug is used for each discrete optical device and connects, the plug-in type clustering ring that preferably ceramic makes.
Optical fiber abrasion sensor comprises optical fiber radical, fibre diameter and each optical fiber and pastes the accuracy of detection requirement of spacing foundation and set.Optical fiber type abrasion sensor be lying side-by-side at suprabasil high-temperature resistant optical fiber band, its choice of the substrates compound substance, macromolecule flexible material.The precision that spacing determines optical fiber type pantograph carbon slide abrasion Real-time and On-line pasted by fibre diameter in high-temperature resistant optical fiber band and each optical fiber, and it is higher that the less then measuring accuracy of spacing pasted by thinner, each optical fiber of high-temperature resistant optical fiber diameter.
Optical fiber abrasion sensor can apply to the different occasions such as high ferro, motor-car, subway, and its concrete size also can use the size of carbon slipper according to different occasion and set.
Optical fiber type abrasion sensor, therefore can high pressure resistant, anti-strong electromagnetic not containing electromagnetic element or other conductive materials; Optical fiber type abrasion sensor is that silicon material is formed, and environmental corrosion resisting, is convenient to On-line sampling system.
The light signal that photoelectrical coupler is used for optical fiber type to wear away sensor collection is converted into electric signal.Select photodetector or CCD.
The electric signal that signal processing unit is used for photoelectrical coupler to send carries out analog to digital conversion, processes in real time, obtain lift-up pressure F to the digital signal obtained
c, carbon plate abrasion value s.According to above-mentioned lift-up pressure F
c, carbon plate abrasion value s, control in real time the pressure in air bag controlled valve increase and decrease air bag, to raise or to reduce pantograph height h, thus reach best net-fault state.Select the signal processing circuit be made up of DSP or FPGA.
Light source, photoelectric coupled device all wear away sensor by multi-core fiber plug and optical fiber type and are connected to form complete optical path, and optical fiber type abrasion sensor is fixed on pantograph carbon slide side by adhesive means.When pantograph carbon slide operationally produces wearing and tearing, in optical fiber type abrasion sensor, corresponding optical fiber ruptures, corresponding light path is unglazed to be passed through, be attached thereto the photoelectrical coupler output signal connect to change, record change amount signal by pantograph signal processing unit, obtain abrasion position and the wear data of pantograph carbon slide.Optical fiber type pantograph carbon slide abrasion Real-time and On-line of the present invention is onboard system, can obtain pantograph carbon slide abrasion condition omnidistance, in real time.
Light source, photoelectric coupled device all wear away sensor by multi-core fiber plug and optical fiber type and are connected to form complete optical path, and described complete optical path is laid mode by the following two kinds and realized:
Transmission-type lays mode: light source sends light beam, wears away sensor by optical fiber type, is transmitted into photoelectric coupled device, forms complete transmission-type light path.Signal processing unit is connected with photoelectrical coupler by shielded cable.Transmission-type is laid mode and is comprised two multi-core fiber plugs, and dismounting is inconvenient, but cost is lower.
Reflective laying mode: light source sends light beam, and light beam wears away sensor by optical fiber type, is reflected into photoelectrical coupler at the optical fiber type abrasion sensor other end by light echo body, forms complete reflected light path.Described light echo body is the cavity by grinding formation.Signal processing unit is connected with photoelectrical coupler by shielded cable.Reflective laying mode only has a multi-core fiber plug, easy accessibility, but needs at optical fiber type abrasion sensor one end processing light echo body, complex process.
Described optical fiber type pantograph lift-up pressure Real-time and On-line, comprises pantograph carbon slide, elastic plate, fibre optic strain sensor, carbon slipper support, fibre optic accelerometer, goat's horn and signal processing unit.
Fibre optic strain sensor for measuring the elastic strain of elastic plate, thus calculates section force value F
d.
Fibre optic accelerometer is for measuring inertia force value F suffered by pantograph
ine.
Pantograph carbon slide and carbon slipper support are by elastic plate support and connection, fibre optic strain sensor is pasted on elastic plate, fibre optic accelerometer is installed on pantograph carbon slide lower surface, signal processing unit is connected with fibre optic accelerometer respectively with fibre optic strain sensor, and signal processing unit surveys inertia force value F for the elastic strain and fibre optic accelerometer gathering fibre optic strain sensor
ine, and carry out signal transacting.Lift-up pressure F
caccording to formula: F
c=F
d+ F
ineobtain.
According to lift-up pressure F
c, carbon plate abrasion value s can grasp pantograph groundwork state, signal processing unit is according to above-mentioned parameter lift-up pressure F
c, carbon plate abrasion value s, control in real time the pressure in air bag controlled valve increase and decrease air bag, to raise or to reduce pantograph height h, thus reach best net-fault state.
1, the present invention is installed on pantograph body, can move with testee, carries out measuring and adjustation in real time to the lift-up pressure of pantograph carbon slide.
2, on-the-spot adaptable: fibre optic strain sensor, fibre optic accelerometer, optical fiber type abrasion sensor good insulating can high pressure resistant, anti-strong electromagnetic, environmental corrosion resisting, is convenient to On-line sampling system;
3, high precision: pantograph carbon slide wearing valve monitoring accuracy is brought up to 0.2mm;
4, structure is dexterous: fibre optic strain sensor, fibre optic accelerometer, optical fiber type abrasion sensor construction is light and handy, and being convenient to be installed on increases responsive pantograph carbon slide position to weight;
5, maintainable good: to utilize multi-core fiber plug, fibre optic strain sensor, fibre optic accelerometer, optical fiber type abrasion sensor are separated with signal processing unit, are convenient to spot replace;
6, can automatically adjust to the lifting of pantograph, realize pantograph carbon slide and contact with the optimum of power supply network.
Accompanying drawing explanation
Fig. 1 is the principle assumption diagram of the comprehensive on-line real-time measuremen of transmission-type pantograph and control system;
Fig. 2 is the principle assumption diagram of the comprehensive on-line real-time measuremen of reflective pantograph and control system;
Fig. 3 is the partial enlarged drawing that reflection type optical fiber formula abrasion sensor is laid;
Fig. 4 is feedback control system block diagram.
Wherein: 1-pantograph carbon slide, 2-elastic plate, 3-fibre optic strain sensor, 4-carbon slipper support, 5-fibre optic accelerometer, 6-goat's horn, 7-signal processing unit, 8-optical fiber type abrasion sensor, 9-multi-core fiber plug, 10-light source, 11-photoelectrical coupler, 12-light echo body, 13-answer the smooth optic fibre, 14-deluster optical fiber, the 15-detection threshold position line, 16-air bag controlled valve
Embodiment
Embodiment 1
As shown in Figure 1, the present embodiment the comprehensive on-line real-time measuremen of optical fiber type pantograph and optical fiber type pantograph carbon slide is worn away Real-time and On-line by control system and optical fiber type pantograph lift-up pressure Real-time and On-line is integrated in one.Optical fiber type pantograph carbon slide abrasion Real-time and On-line, for detecting pantograph carbon slide [1] abrasion situation, adopts transmission-type to lay mode.Optical fiber type pantograph lift-up pressure Real-time and On-line is used for the lift-up pressure value F recording pantograph carbon slide [1]
c.And to pantograph carbon slide [1] wearing valve and pantograph carbon slide [1] lift-up pressure F
ccomprehensive Comparison, exports the lift-up pressure F in good time adjusting pantograph carbon slide [1] and contact net for the feedback signal controlling air bag controlled valve according to preset
cand contact condition, effectively avoid the situation such as off-grid, holder net, meanwhile, the detection system described in utilization can extend the serviceable life of pantograph carbon slide [1], and improves train current carrying quality, ensures safe train operation.
Described preset is: (1) pantograph carbon slide when pantograph carbon slide wearing valve is greater than abrasion threshold value reaches the upper limit in serviceable life, changes pantograph carbon slide; (2) as pantograph carbon slide lift-up pressure F
cbe less than reasonable lift-up pressure F
cduring range lower limit, promoting pantograph carbon slide height increases lift-up pressure F suffered by it
c, effectively avoid off-grid, improve current carrying quality, ensure safe train operation; When being subject to pantograph carbon slide lift-up pressure F
cbe greater than reasonable lift-up pressure F
cduring range limit, reduce pantograph carbon slide height and reduce lift-up pressure F suffered by it
c, and then prevent pantograph holder net from causing contact net and carbon slipper damage.(3) when exceptional value appears in pantograph carbon slide [1] wearing valve, according to pantograph carbon slide [1] lift-up pressure F
ccomprehensive Comparison, and same alarm, undertaken judging whether fall bow operation or automatically carry out falling bow operation by trainman.(4) when locomotive is by when flowing out existing exception, according to pantograph carbon slide [1] wearing valve and pantograph carbon slide [1] lift-up pressure F
ccomprehensive Comparison, is undertaken judging whether to carry out falling bow operation by trainman.Wherein, threshold value, rationally lift-up pressure F is worn away
cscope can adjust, as use occasions such as high ferro, motor-car, subways according to carbon slipper kind, carbon slipper use occasion difference.
Described pantograph carbon slide [1] wearing and tearing are all wear and tear successively from upper surface to lower surface, and when wearing valve is greater than preset, pantograph carbon slide [1] reaches the upper limit in serviceable life, changes pantograph carbon slide [1].
Described optical fiber type pantograph carbon slide abrasion Real-time and On-line, comprises light source [10], multi-core fiber plug [9], optical fiber type abrasion sensor [8], photoelectrical coupler [11], signal processing unit [7].
Light source [10] selects infrared band LED or visible light wave range LED.
Multi-core fiber plug [9] connects for each discrete optical device, the plug-in type clustering ring that preferably ceramic makes.
Optical fiber abrasion sensor comprises optical fiber radical, fibre diameter and each optical fiber and pastes the accuracy of detection requirement of spacing foundation and set.Optical fiber type abrasion sensor be lying side-by-side at suprabasil high-temperature resistant optical fiber band, its choice of the substrates compound substance, macromolecule flexible material.The precision that spacing determines optical fiber type pantograph carbon slide abrasion Real-time and On-line pasted by fibre diameter in high-temperature resistant optical fiber band and each optical fiber, and it is higher that the less then measuring accuracy of spacing pasted by thinner, each optical fiber of high-temperature resistant optical fiber diameter.
Optical fiber abrasion sensor can apply to the different occasions such as high ferro, motor-car, subway, and its concrete size also can use the size of carbon slipper according to different occasion and set.
Optical fiber type abrasion sensor, therefore can high pressure resistant, anti-strong electromagnetic not containing electromagnetic element or other conductive materials; Optical fiber type abrasion sensor is that silicon material is formed, and environmental corrosion resisting, is convenient to On-line sampling system.
Photoelectrical coupler [11] is converted into electric signal for light signal optical fiber type being worn away sensor [3] and gather.Select photodetector or CCD.
Signal processing unit [7] carries out analog to digital conversion for the electric signal sent by photoelectrical coupler, processes in real time the digital signal obtained, and obtains lift-up pressure F
c, carbon plate abrasion value s.According to above-mentioned parameter lift-up pressure F
c, carbon plate abrasion value s, control in real time the pressure in air bag controlled valve increase and decrease air bag, to raise or to reduce pantograph height h, thus reach best net-fault state.Select the signal processing circuit be made up of DSP or FPGA.
Light source [10], photoelectric coupled device [11] all wear away sensor [8] by multi-core fiber plug [9] and optical fiber type and are connected to form complete optical path, and optical fiber type abrasion sensor [8] is fixed on pantograph carbon slide [1] side by adhesive means.When pantograph carbon slide [1] operationally produces wearing and tearing, in optical fiber type abrasion sensor [8], corresponding optical fiber ruptures, corresponding light path is unglazed to be passed through, be attached thereto photoelectrical coupler [11] output signal connect to change, record change amount signal by pantograph signal processing unit [7], obtain abrasion position and the wear data s of pantograph carbon slide [1].Optical fiber type pantograph carbon slide abrasion Real-time and On-line of the present invention is onboard system, can omnidistance, obtain pantograph carbon slide [1] abrasion condition in real time.
Transmission-type lays mode: light source [10] sends light beam, wears away sensor [8] by optical fiber type, is transmitted into photoelectric coupled device [11], forms complete transmission-type light path.Signal processing unit [7] is connected with photoelectrical coupler [11] by shielded cable.Transmission-type is laid mode and is comprised two multi-core fiber plugs [9], and dismounting is inconvenient, but cost is lower.
Described optical fiber type pantograph lift-up pressure Real-time and On-line, comprises pantograph carbon slide [1], elastic plate [2], fibre optic strain sensor [3], carbon slipper support [4], fibre optic accelerometer [5], goat's horn [6] and signal processing unit [7].
Fibre optic strain sensor [3] for measuring the elastic strain of elastic plate [2], thus calculates section force value F
d.
Fibre optic accelerometer [5] is for measuring inertia force value F suffered by pantograph
ine.
Pantograph carbon slide [1] and carbon slipper support [4] are by elastic plate [2] support and connection, fibre optic strain sensor [3] is pasted on elastic plate [2], fibre optic accelerometer [7] is installed on pantograph carbon slide [1] lower surface, signal processing unit [5] is connected with fibre optic accelerometer [5] respectively with fibre optic strain sensor [3], signal processing unit [5] for gather the elastic strain of fibre optic strain sensor [3] and fibre optic accelerometer [5] survey inertia force value F
ine, and carry out signal transacting.Lift-up pressure F
caccording to formula: F
c=F
d+ F
ineobtain.
As shown in Figure 4, signal processing unit [7] is according to lift-up pressure F
c, carbon plate abrasion value s can grasp pantograph groundwork state, according to above-mentioned parameter lift-up pressure F
c, carbon plate abrasion value s, control in real time the pressure in air bag controlled valve increase and decrease air bag, to raise or to reduce pantograph height h, thus reach best net-fault state.
Embodiment 2:
As shown in Figure 2,3, the present embodiment the comprehensive on-line real-time measuremen of optical fiber type pantograph and optical fiber type pantograph carbon slide is worn away Real-time and On-line by control system and optical fiber type pantograph lift-up pressure Real-time and On-line is integrated in one.Optical fiber type pantograph carbon slide abrasion Real-time and On-line, for detecting pantograph carbon slide [1] abrasion situation, adopts reflective laying mode.Optical fiber type pantograph lift-up pressure Real-time and On-line is used for the lift-up pressure value F recording pantograph carbon slide [1]
c.And to pantograph carbon slide [1] wearing valve and pantograph carbon slide [1] lift-up pressure F
ccomprehensive Comparison, exports according to preset the lift-up pressure F that the feedback signal being used for Controlling solenoid valve adjusts pantograph carbon slide [1] and contact net in good time
cand contact condition, effectively avoid the situation such as off-grid, holder net, meanwhile, the detection system described in utilization can extend the serviceable life of pantograph carbon slide [1], and improves train current carrying quality, ensures safe train operation.
Described preset is: (1) pantograph carbon slide when pantograph carbon slide wearing valve is greater than abrasion threshold value reaches the upper limit in serviceable life, changes pantograph carbon slide; (2) as pantograph carbon slide lift-up pressure F
cbe less than reasonable lift-up pressure F
cduring range lower limit, promoting pantograph carbon slide height increases lift-up pressure F suffered by it
c, effectively avoid off-grid, improve current carrying quality, ensure safe train operation; When being subject to pantograph carbon slide lift-up pressure F
cbe greater than reasonable lift-up pressure F
cduring range limit, reduce pantograph carbon slide height and reduce lift-up pressure F suffered by it
c, and then prevent pantograph holder net from causing contact net and carbon slipper damage.(3) when exceptional value appears in pantograph carbon slide [1] wearing valve, according to pantograph carbon slide [1] lift-up pressure F
ccomprehensive Comparison, and same alarm, undertaken judging whether fall bow operation or automatically carry out falling bow operation by trainman.(4) when locomotive is by when flowing out existing exception, according to pantograph carbon slide [1] wearing valve and pantograph carbon slide [1] lift-up pressure F
ccomprehensive Comparison, is undertaken judging whether to carry out falling bow operation by trainman.Wherein, threshold value, rationally lift-up pressure F is worn away
cscope can adjust, as use occasions such as high ferro, motor-car, subways according to carbon slipper kind, carbon slipper use occasion difference.
Described pantograph carbon slide [1] wearing and tearing are all wear and tear successively from upper surface to lower surface, and when wearing valve is greater than preset, pantograph carbon slide [1] reaches the upper limit in serviceable life, changes pantograph carbon slide [1].
Described optical fiber type pantograph carbon slide abrasion Real-time and On-line, comprises light source [10], multi-core fiber plug [9], optical fiber type abrasion sensor [8], photoelectrical coupler [11], signal processing unit [7].
Light source [10] selects infrared band LED or visible light wave range LED.
Multi-core fiber plug [9] connects for each discrete optical device, the plug-in type clustering ring that preferably ceramic makes.
Optical fiber abrasion sensor comprises optical fiber radical, fibre diameter and each optical fiber and pastes the accuracy of detection requirement of spacing foundation and set.Optical fiber type abrasion sensor be lying side-by-side at suprabasil high-temperature resistant optical fiber band, its choice of the substrates compound substance, macromolecule flexible material.The precision that spacing determines optical fiber type pantograph carbon slide abrasion Real-time and On-line pasted by fibre diameter in high-temperature resistant optical fiber band and each optical fiber, and it is higher that the less then measuring accuracy of spacing pasted by thinner, each optical fiber of high-temperature resistant optical fiber diameter.
Optical fiber abrasion sensor can apply to the different occasions such as high ferro, motor-car, subway, and its concrete size also can use the size of carbon slipper according to different occasion and set.
Optical fiber type abrasion sensor, therefore can high pressure resistant, anti-strong electromagnetic not containing electromagnetic element or other conductive materials; Optical fiber type abrasion sensor is that silicon material is formed, and environmental corrosion resisting, is convenient to On-line sampling system.
Photoelectrical coupler [11] is converted into electric signal for light signal optical fiber type being worn away sensor [3] and gather.Select photodetector or CCD.
Signal processing unit [7] carries out analog to digital conversion for the electric signal sent by photoelectrical coupler, processes in real time the digital signal obtained, and obtains lift-up pressure F
c, carbon plate abrasion value s.According to above-mentioned parameter F
c, s, control in real time the pressure in air bag controlled valve increase and decrease air bag, to raise or to reduce pantograph height h, thus reach best net-fault state.Select the signal processing circuit be made up of DSP or FPGA.
Light source [10], photoelectric coupled device [11] all wear away sensor [8] by multi-core fiber plug [9] and optical fiber type and are connected to form complete optical path, and optical fiber type abrasion sensor [8] is fixed on pantograph carbon slide [1] side by adhesive means.When pantograph carbon slide [1] operationally produces wearing and tearing, in optical fiber type abrasion sensor [8], corresponding optical fiber ruptures, corresponding light path is unglazed to be passed through, be attached thereto photoelectrical coupler [11] output signal connect to change, record change amount signal by pantograph signal processing unit [7], obtain abrasion position and the wear data of pantograph carbon slide [1].Optical fiber type pantograph carbon slide abrasion Real-time and On-line of the present invention is onboard system, can omnidistance, obtain pantograph carbon slide [1] abrasion condition in real time.
Reflective laying mode: light source [10] sends light beam, light beam wears away sensor [8] by optical fiber type, is reflected into photoelectrical coupler [11], forms complete reflected light path at optical fiber type abrasion sensor [8] other end by light echo body [12].Described light echo body [12] is the cavity by grinding formation.Signal processing unit [7] is connected with photoelectrical coupler [11] by shielded cable.Reflective laying mode only has a multi-core fiber plug [9], easy accessibility, but needs at optical fiber type abrasion sensor [8] one end processing light echo body [12], complex process.
Described optical fiber type pantograph lift-up pressure Real-time and On-line, comprises pantograph carbon slide [1], elastic plate [2], fibre optic strain sensor [3], carbon slipper support [4], fibre optic accelerometer [5], goat's horn [6] and signal processing unit [7].
Fibre optic strain sensor [3] for measuring the elastic strain of elastic plate [2], thus calculates section force value F
d.
Fibre optic accelerometer [5] is for measuring inertia force value F suffered by pantograph
ine.
Pantograph carbon slide [1] and carbon slipper support [4] are by elastic plate [2] support and connection, fibre optic strain sensor [3] is pasted on elastic plate [2], fibre optic accelerometer [7] is installed on pantograph carbon slide [1] lower surface, signal processing unit [5] is connected with fibre optic accelerometer [5] respectively with fibre optic strain sensor [3], signal processing unit [5] for gather the elastic strain of fibre optic strain sensor [3] and fibre optic accelerometer [5] survey inertia force value F
ine, and carry out signal transacting.Lift-up pressure F
caccording to formula: F
c=F
d+ F
ineobtain.
As shown in Figure 4, signal processing unit [7] is according to lift-up pressure F
c, carbon plate abrasion value s can grasp pantograph groundwork state, according to above-mentioned parameter lift-up pressure F
c, carbon plate abrasion value s, control in real time the pressure in air bag controlled valve increase and decrease air bag, to raise or to reduce pantograph height h, thus reach best net-fault state.
Scope is not only confined to embodiment, embodiment for explaining the present invention, all changes with the present invention under same principle and design condition or revise all within protection domain disclosed by the invention.
Claims (2)
1. the comprehensive on-line real-time measuremen of optical fiber type pantograph and control system, is characterized in that: the comprehensive on-line real-time measuremen of pantograph and control system optical fiber type pantograph carbon slide are worn away Real-time and On-line and optical fiber type pantograph lift-up pressure Real-time and On-line is integrated in one; Optical fiber type pantograph carbon slide abrasion Real-time and On-line is for detecting pantograph carbon slide (1) abrasion situation; Optical fiber type pantograph lift-up pressure Real-time and On-line is used for the lift-up pressure value F recording pantograph carbon slide (1)
c; By signal processing unit (7) to pantograph carbon slide (1) wearing valve and pantograph carbon slide (1) lift-up pressure F
ccomprehensive Comparison, according to preset, exporting the feedback signal for controlling air bag controlled valve, adjusting the lift-up pressure F of pantograph carbon slide (1) in good time
cand contact condition, effectively avoid off-grid, holder net situation, meanwhile, utilize described optical fiber type pantograph carbon slide abrasion Real-time and On-line can extend the serviceable life of pantograph carbon slide (1), and improve train current carrying quality, ensure safe train operation;
Described preset is, (1) pantograph carbon slide (1) when pantograph carbon slide (1) wearing valve is greater than abrasion threshold value reaches the upper limit in serviceable life, changes pantograph carbon slide (1); (2) as pantograph carbon slide (1) lift-up pressure F
cwhen being less than reasonable lift-up pressure range lower limit, promoting pantograph carbon slide (1) highly increases lift-up pressure F suffered by it
c, effectively avoid off-grid, improve current carrying quality, ensure safe train operation; As pantograph carbon slide (1) lift-up pressure F
cwhen being greater than reasonable lift-up pressure range limit, reducing pantograph carbon slide (1) and highly reduce lift-up pressure F suffered by it
c, and then prevent pantograph holder net from causing contact net and carbon slipper damage; (3) when exceptional value appears in pantograph carbon slide (1) wearing valve, according to pantograph carbon slide (1) lift-up pressure F
ccomprehensive Comparison, and same alarm, undertaken judging whether fall bow operation or automatically carry out falling bow operation by trainman; (4) when locomotive is by when flowing out existing exception, according to pantograph carbon slide (1) wearing valve and pantograph carbon slide (1) lift-up pressure F
ccomprehensive Comparison, is undertaken judging whether to carry out falling bow operation by trainman; Wherein, wear away threshold value, rationally lift-up pressure scope to adjust, as high ferro, motor-car, subway use occasion according to pantograph carbon slide (1) kind, pantograph carbon slide (1) use occasion difference;
Described optical fiber type pantograph carbon slide abrasion Real-time and On-line, comprises light source (10), multi-core fiber plug (9), optical fiber type abrasion sensor (8), photoelectrical coupler (11), signal processing unit (7);
Optical fiber type abrasion sensor (8) comprises optical fiber radical, fibre diameter and each optical fiber and pastes the accuracy of detection requirement of spacing foundation and set; Optical fiber type wears away sensor (8) for lying side-by-side is at suprabasil high-temperature resistant optical fiber band, its choice of the substrates compound substance, macromolecule flexible material; The precision that spacing determines pantograph carbon slide (1) abrasion Real-time and On-line pasted by fibre diameter in high-temperature resistant optical fiber band and each optical fiber, and it is higher that the less then measuring accuracy of spacing pasted by thinner, each optical fiber of high-temperature resistant optical fiber diameter; Optical fiber type abrasion sensor (8), therefore can high pressure resistant, anti-strong electromagnetic not containing electromagnetic element or other conductive materials; Optical fiber type abrasion sensor (8) is silicon material formation, and environmental corrosion resisting, is convenient to On-line sampling system; Optical fiber mill formula consumption sensor (8) can apply to high ferro, motor-car, the different occasion of subway, and its concrete size also can use the size of carbon slipper according to different occasion and set;
Light source (10) selects infrared band LED or visible light wave range LED;
Multi-core fiber plug (9) connects for each discrete optical device, the plug-in type clustering ring of ceramic making;
Photoelectrical coupler (11) is converted into electric signal for light signal optical fiber type being worn away sensor (8) and gather; Select photodetector or CCD;
Signal processing unit (7) carries out analog to digital conversion for the electric signal sent by photoelectrical coupler (11), processes in real time the digital signal obtained, and obtains lift-up pressure F
c, carbon plate abrasion value s; According to lift-up pressure F
c, carbon plate abrasion value s, control in real time the pressure in air bag controlled valve increase and decrease air bag, to raise or to reduce pantograph height h, thus reach best net-fault state;
Light source (10), photoelectrical coupler (11) all wear away sensor (8) by multi-core fiber plug (9) and optical fiber type and are connected to form complete optical path, and optical fiber type abrasion sensor (8) is fixed on pantograph carbon slide (1) side; When pantograph carbon slide (1) operationally produces wearing and tearing, in optical fiber type abrasion sensor (8), corresponding optical fiber ruptures, corresponding light path is unglazed to be passed through, be attached thereto photoelectrical coupler (11) output signal connect to change, record change amount signal by signal processing unit (7), obtain abrasion position and the carbon plate abrasion value s of pantograph carbon slide (1);
Light source (10), photoelectrical coupler (11) all wear away sensor (8) by multi-core fiber plug (9) and optical fiber type and are connected to form complete optical path, and described complete optical path is laid mode by the following two kinds and realized:
Transmission-type lays mode: light source (10) sends light beam, wears away sensor (8) by optical fiber type, is transmitted into photoelectrical coupler (11), forms complete transmission-type light path; Signal processing unit (7) is connected with photoelectrical coupler (11) by shielded cable;
Reflective laying mode: light source (10) sends light beam, light beam wears away sensor (8) by optical fiber type, be reflected into photoelectrical coupler (11) at optical fiber type abrasion sensor (8) other end by light echo body (12), form complete reflected light path; Described light echo body (12) is the cavity by grinding formation; Signal processing unit (7) is connected with photoelectrical coupler (11) by shielded cable.
2. the comprehensive on-line real-time measuremen of optical fiber type pantograph according to claim 1 and control system, it is characterized in that: described optical fiber type pantograph lift-up pressure Real-time and On-line, comprises pantograph carbon slide (1), elastic plate (2), fibre optic strain sensor (3), carbon slipper support (4), fibre optic accelerometer (5), goat's horn (6) and signal processing unit (7);
Fibre optic strain sensor (3) for measuring the elastic strain of elastic plate (2), thus calculates section force value F
d;
Fibre optic accelerometer (5) is for measuring inertia force value F suffered by pantograph
ine;
Pantograph carbon slide (1) and carbon slipper support (4) are by elastic plate (2) support and connection, fibre optic strain sensor (3) is pasted on elastic plate (2), fibre optic accelerometer (5) is installed on pantograph carbon slide (1) lower surface, signal processing unit (7) is connected with fibre optic accelerometer (5) respectively with fibre optic strain sensor (3), signal processing unit (7) for gather the elastic strain of fibre optic strain sensor (3) and fibre optic accelerometer (5) survey inertia force value F
ine, and carry out signal transacting; Lift-up pressure F
caccording to formula: F
c=F
d+ F
ineobtain;
Signal processing unit (7) is according to lift-up pressure F
c, carbon plate abrasion value s can grasp pantograph groundwork state, according to parameter lift-up pressure F
c, carbon plate abrasion value s, control in real time the pressure in air bag controlled valve increase and decrease air bag, to raise or to reduce pantograph height h, thus reach best net-fault state.
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| CN201310487863.1A CN103528624B (en) | 2013-10-18 | 2013-10-18 | The comprehensive on-line real-time measuremen of optical fiber type pantograph and control system |
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| CN113777105A (en) * | 2021-09-03 | 2021-12-10 | 河北地质大学 | Optical fiber detection system for monitoring abrasion of carbon slide plate of pantograph |
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