CN108327743A - A kind of infrared detection system and detection method applied to high-speed EMUs - Google Patents
A kind of infrared detection system and detection method applied to high-speed EMUs Download PDFInfo
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- CN108327743A CN108327743A CN201810271829.3A CN201810271829A CN108327743A CN 108327743 A CN108327743 A CN 108327743A CN 201810271829 A CN201810271829 A CN 201810271829A CN 108327743 A CN108327743 A CN 108327743A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
- B61L1/181—Details
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Abstract
The invention discloses a kind of infrared detection system and detection method applied to high-speed EMUs, belong to railway security monitoring field.Detection system is that host connects control cabinet and license number case, and control cabinet connects bottomside sounding case and two multielement transducer probes, and each multielement transducer probe includes polynary photonic device, wide-angle multielement optical system and probe processing circuit；Detection method is：When train passes through, the component of underbody generates infra-red radiation and is received by wide-angle multielement optical system, it converges on the chip of photonic device, voltage signal is generated through opto-electronic conversion, probe processing circuit such as is amplified voltage signal, filters and improves at the processing, it is transferred to host after control cabinet is handled and generates thermal map, then is modified by the intelligent thermal map processing module and center big data platform of system, obtains the integrated temperature Ts of each component；And judge whether temperature Ts is more than preset value, and heat-flash early warning or sharp thermal warning are sent out according to different preset values, realize effective, the accurate detection to EMU car bottom parts.
Description
Technical field
The invention belongs to railway security monitoring fields, are related to train infrared thermometry system, specifically a kind of to be applied to height
The infrared detection system and detection method of fast EMU.
Background technology
It to be supervised in real time in the process of running in the operation component of railway security monitoring field, high-speed railway EMU
Control, such as traction electric machine, gear-box, brake disc and axle box etc..It is often adjoint to send out when these component malfunctions
Heat, and then there is serious problems influence traffic safety.
Currently, the fevers such as the traction electric machine of motor train unit train, gear-box and axle box operation component has been respectively mounted contact temperature
Spend sensor, the heat condition for monitoring these components.But temperature sensor occasional breaks down, and causes temperature inaccurate
It really or interrupts, monitoring personnel can not carry out effective monitoring to the operation heat generating components of EMU on vehicle at this time, be produced to traffic safety
Life seriously affects.Thus, it is also necessary to there are external contactless detection means to ensure the traffic safety of EMU.
Infra-red detection technology has applied to the detection of train axle box for many years, is a kind of technology of comparative maturity.In order to
Multiple and different heat generating components at enough probe vehicles bottoms simultaneously, current detecting devices be typically configure multiple units or multielement transducer probe,
Multiple targets of different direction are detected with different angle.There are following problems for this detecting devices：
1, it pops one's head in and detection box number is excessive, installation is not easy, and maintenance cost rises；
2, detection angle is fixed, and is easy the generation wrong report that is interfered；
3, detection angle can not cover most component, it is difficult to adapt to whole vehicles.
Have that some technologies use non-refrigeration type and refrigeration mode thermal imaging detector is detected, can solve detection angle and
The problem of adapting to vehicle.But there are still problems with for these detecting devices：
1, the non-refrigeration type thermal imaging detection system speed of response and frame frequency are all relatively low, it is difficult to adapt to 60km/h or more speeds
Train infrared acquisition；
2, the refrigeration mode thermal imaging detection system speed of response is high, but refrigeration machine short life, expensive；
Invention content
The present invention realizes simple, effective and accurate to solve the problems, such as high-speed EMUs critical component infrared acquisition
Detection, provides a kind of infrared detection system and detection method applied to high-speed EMUs.
The detection system, including multielement transducer probe, wheel detector, AEI license numbers antenna, visualization license number module, bottom
Portion detects case, control cabinet, power supply box, host, license number case and lightning protection box；
The host is separately connected control cabinet and license number case by cable, control cabinet by cable be separately connected power supply box and
Bottomside sounding case, further connects multielement transducer probe；Wheel detector connects after lightning protection box with control cabinet, when wheel passes through
Signal is generated, for functions such as the booting of system, counting shaft with axle counter, speed calculating.License number case is separately connected AEI license numbers by cable
Antenna and visualization license number module, provide the information such as train number and train model.
Multielement transducer probe is no more than two, is separately mounted in bottomside sounding case, can detect EMU bottom Critical comprehensively
Component；And as core exploring block, each multielement transducer probe includes a polynary photonic device, wide-angle multielement optical system, visits
Head processing circuit and protecting window.Polynary photonic device is connected with probe processing circuit by conducting wire, the spy of polynary photonic device
It surveys in light path and wide-angle multielement optical system is installed, wide-angle multielement optical system is equipped with protecting window in light path；At probe
Reason circuit handles the signal of polynary photonic device, and signal is converted and amplified, indoor control is transmitted through the cable to
Case processed.
In the polynary photonic device, the quantity of infrared-sensitive chip is N, N >=16, using the arrangement of non-linear array and efficiently
Cooling base designs, and is detected while capable of realizing N different locations, is not generated when receiving infra-red radiation and interferes and be distorted.
Wide-angle multielement optical system is set using infrared wide-angle light path for the optical system of polynary photonic device design
Meter, reaches the wide visual field range and low distortion effect of infrared acquisition.
Probe processing circuit handles the signal of polynary photonic device, and the signal that polynary photonic device is generated carries out
Conversion and amplification, are transmitted through the cable to indoor control cabinet.
Protecting window is made of infra-red material, is protected to wide-angle multielement optical system and polynary photonic device
Window reduces sunlight interference.
Using the infrared acquisition method that high-speed EMUs infrared detection system carries out motor train unit train, specific steps are such as
Under：
Step 1: multielement transducer probe, wheel detector, AEI license numbers antenna, visualization license number module and bottomside sounding case are pacified
Dress is fixed on rail side；
Multielement transducer probe is used to detect the infrared signal of EMU car bottom parts, and wheel detector is for being switched on and to EMU
It the positioning of underbody component and tests the speed, AEI license number antennas receive the motor-car group information for being mounted with license number label, visualize license number module
The information such as the train number and model of acquisition and differentiation EMU side, bottomside sounding case is for protecting and carrying multielement transducer probe.
Step 2: when train passes through, the rails edge equipment such as multielement transducer probe, wheel detector acquires signal, and passes through cable
It is transferred on control cabinet；
Specially：The components such as traction electric machine, gear-box and the brake disc of underbody send out infra-red radiation thermogenetic, by wide-angle
Multielement optical system converges on the chip of polynary photonic device, and polynary photonic device generates after receiving heat radiation through opto-electronic conversion
Faint voltage signal；Probe processing circuit is amplified, filters to this voltage signal, improving and the processing such as AD conversion, leads to
Cable transmission is crossed to indoor control cabinet；
Step 3: control cabinet after acquisition signal processing to transferring to host, host to be further processed to obtain motor train unit train vehicle
The temperature information at bottom；
Control cabinet carries out filtering and Shape correction accordingly to the analog and digital signal that multielement transducer probe transmits, then
Give AD cards by cable transmission, be acquired be converted into digital signal or be transferred directly to host Ethernet interface it is soft by picking up
Part is received, and temperature computation uses adaptive algorithm, passes through formulaObtain each portion in EMU car bottom
The temperature Ta of part；
Step 4: host generates the infrared chart at EMU car bottom, the integrated temperature of each component in EMU car bottom is obtained
Ts；
Temperature information by intelligent thermal map image processing techniques, is rejected invalid interference, motor train unit train underbody by host
The heat condition of each component carries out integrated treatment, and accurate, true heating temperature data Tb is obtained on the basis of Ta.
Meanwhile by system other sensors, the data of center big data server carry out comprehensive intelligent analysis, to Tb into
Row is corrected, and the heat of combination EMU sentences model and heat sentences standard, obtains the integrated temperature Ts of each component.
Step 5: judging whether the integrated temperature Ts of each component is more than the preset value T1 of the component, if it is, sending out
Heat-flash early warning；Otherwise, it continues to determine whether to be more than preset value T2, if it is, sending out sharp hot early warning；Otherwise, it does not send out any
Early warning.
Step 6: by center is uploaded to the analysis of the thermal map of EMU car bottom parts and message, while will overheat early warning letter
Breath is sent to the monitoring system on motor train unit train by communication system.
The method have the characteristics that：
(1) a kind of infrared detection system applied to high-speed EMUs, multielement transducer probe set the polynary photonic device of non-linear array
Meter and infrared wide-angle Optical System Design are combined, and realize that the complete of accurate positionin and entire underbody to EMU car bottom parts covers
Lid detection, takes into account all EMU vehicles.
(2) a kind of infrared detection system applied to high-speed EMUs, only configuration are no more than 2 multielement transducer probes, using more
First photonic device reduces probe and probe box number, reduces maintenance difficulties, simply and effectively realizes to EMU bottom Critical
The accurate detection of part temperatures.
(3) a kind of infrared detection system applied to high-speed EMUs, overcomes non-refrigeration type thermal imaging system and refrigeration
The shortcomings that type thermal imaging system, realizes the EMU infrared chart detection of high speed, long lifespan, moderate cost.
(4) the infrared measurement of temperature data of underbody can be generated heat by a kind of infrared acquisition method applied to high-speed EMUs
Figure, can effectively analyze heat generating components by thermal map, and early warning accuracy is improved.
Description of the drawings
Fig. 1 is a kind of monolithically fabricated figure of infrared detection system applied to high-speed EMUs of the invention；
Fig. 2 is that a kind of multielement transducer probe of infrared detection system applied to high-speed EMUs of the invention constitutes figure；
Fig. 3 is a kind of detection schematic diagram of infrared detection system applied to high-speed EMUs of the invention；
Fig. 4 is a kind of flow chart of infrared acquisition method applied to high-speed EMUs of the invention.
1- sleepers, 2- rails, 3- wheels, 4- axis, 5- gear-boxes, 6- motors, 7- bottomside sounding casees.
Specific implementation mode
Below in conjunction with drawings and examples, the present invention is described in further detail.
A kind of infrared detection system applied to high-speed EMUs of the present invention, using the polynary photonic device of non-linear array and
The multielement transducer probe that wide-angle multielement optical system is combined as core exploring block, as shown in Figure 1, further include wheel detector,
AEI license numbers antenna, visualization license number module, bottomside sounding case, control cabinet, power supply box, host, license number case and lightning protection box；
The host is separately connected control cabinet and license number case by cable, control cabinet by cable be separately connected power supply box and
Bottomside sounding case, further connects multielement transducer probe；Wheel detector connects after lightning protection box with control cabinet, when wheel passes through
Signal is generated, by signal by cable transmission to control cabinet, for functions such as the booting of system, counting shaft with axle counter, speed calculating；Vehicle
Number case is separately connected AEI license numbers antenna and visualization license number module by cable, provides the information such as train number and train model.
Bottomside sounding case carries multielement transducer probe, plays the role of protecting multielement transducer probe；Bottomside sounding case is mounted in rail
Portion, as core exploring block, as shown in Fig. 2, including a polynary photonic device, wide-angle multielement optical system, probe processing
Circuit and protecting window.Polynary photonic device is connected with probe processing circuit by conducting wire, the detection light path of polynary photonic device
On wide-angle multielement optical system is installed, wide-angle multielement optical system uses infrared wide-angle light path design, equipped with protecting in light path
Protect window；Probe processing circuit handles the signal of polynary photonic device, and signal is converted and amplified, cable is passed through
It is transferred to indoor control cabinet.
The multielement transducer probe is no more than two, using the polynary photonic device of customization, by infrared-sensitive chip
Non- linear array arrangement and the design of high efficiency and heat radiation pedestal, realize at least 16 infrared-sensitive chip individual reception infra-red radiations without generating
It interferes with each other, while detecting multiple and different positions of EMU.
Wide-angle multielement optical system is set using infrared wide-angle light path for the optical system of polynary photonic device design
Meter, reaches the wide visual field range and low distortion effect of infrared acquisition.
Protecting window is made of infra-red material, is protected to wide-angle multielement optical system and polynary photonic device
Window reduces sunlight interference.
As shown in figure 3, the target of system detection includes the gear-box 5 and motor 6 at EMU car bottom, train operation is in rail
On 2, system realizes the detection to EMU car bottom by light path shown in figure.
The method that infrared acquisition is carried out to train using high-speed EMUs infrared detection system, as shown in figure 4, tool
Steps are as follows for body：
Step 1: multielement transducer probe, wheel detector, AEI license numbers antenna, visualization license number module and bottomside sounding case are pacified
Dress is fixed on rail side；
Multielement transducer probe is used to detect the infrared signal of EMU car bottom parts, and wheel detector is for being switched on and to EMU
It the positioning of underbody component and tests the speed, AEI license number antennas receive the motor-car group information for being mounted with license number label, visualize license number module
The information such as the train number and model of acquisition and differentiation EMU side, bottomside sounding case is for protecting and carrying multielement transducer probe.
Step 2: when train passes through, the rails edge equipment such as multielement transducer probe, wheel detector acquires signal, and passes through cable
It is transferred on control cabinet；
Specially：The components such as traction electric machine, gear-box and the brake disc of underbody send out infra-red radiation thermogenetic, by wide-angle
Multielement optical system converges on the chip of polynary photonic device, and polynary photonic device generates after receiving heat radiation through opto-electronic conversion
Faint voltage signal；Probe processing circuit such as is amplified this voltage signal, filters and improves at the processing, is passed by cable
It is defeated to arrive indoor control cabinet；
Control cabinet controls the device on rail side simultaneously also by cable.
Step 3: control cabinet after acquisition signal processing to transferring to host, host to be further processed to obtain motor train unit train vehicle
The temperature information at bottom；
Control cabinet carries out filtering and Shape correction accordingly to the analog and digital signal that multielement transducer probe transmits, then
It is acquired to AD cards by cable transmission and is converted into digital signal or is transferred directly to host to be received by picking up software,
Temperature computation uses adaptive algorithm, passes through formulaObtain the temperature Ta of each component in EMU car bottom；
Step 4: host generates the infrared chart at EMU car bottom, the integrated temperature of each component in EMU car bottom is obtained
Ts；
Temperature information by intelligent thermal map image processing techniques, is rejected invalid interference, motor train unit train underbody by host
The heat condition of each component carries out integrated treatment, obtains accurate, true heating temperature data Tb.
Meanwhile by system other sensors, the data of center big data server carry out comprehensive intelligent analysis, to Tb into
Row is corrected, and the heat of combination EMU sentences model and heat sentences standard, obtains the integrated temperature Ts of each component.
Step 5: judge whether the integrated temperature Ts of each component is more than the preset value T1 of the type component, if it is,
Send out heat-flash early warning；Otherwise, it continues to determine whether to be more than preset value T2, if it is, sending out sharp thermal warning；Otherwise, it does not send out
Any alarm.
Preset value T1 and T2 is set according to the technical parameter and forecast experience of the type component.
Step 6: by center is uploaded to the analysis of the thermal map of EMU car bottom parts and message, and warning information is sent
To the monitoring system on motor train unit train.
The present invention is designed using the polynary photonic device of non-linear array and wide-angle multielement optical system, and improve system uses the longevity
Life, maintainable and reliability.Meanwhile simple system effectively realizes the accurate spy to EMU bottom Critical part temperatures
It surveys；Can the data of detection be subjected to integrated treatment, generate thermal map, the fever point of EMU car bottom parts is carried out by thermal map
Analysis, can more accurately judge the heat condition of underbody component, improve the accuracy of early warning.
Claims (6)
1. a kind of infrared detection system applied to high-speed EMUs, it is characterised in that, can including rail edge equipment and indoor equipment
Real time temperature detection is carried out to critical components such as EMU gear-box, motor, shaft coupling, brake disc, wheel, axle boxes simultaneously, and
Generate thermal map, comprehensive pre-warning；The rail edge equipment include multielement transducer probe, bottomside sounding case, wheel detector, AEI license numbers antenna,
Visualize license number module；The indoor equipment includes control cabinet, power supply box, host, license number case and lightning protection box；
The host is separately connected control cabinet and license number case by cable, and control cabinet is separately connected power supply box and bottom by cable
Case is detected, multielement transducer probe is further connected；Wheel detector is connect after lightning protection box with control cabinet, and license number case is distinguished by cable
Connect AEI license numbers antenna and visualization license number module；
Multielement transducer probe is no more than two, is mounted in rail inside bottom detection case, as core exploring block, each polynary spy
Head all includes a polynary photonic device, wide-angle multielement optical system, probe processing circuit and protecting window；Polynary photonic device
It is connected by conducting wire with probe processing circuit, wide-angle multielement optical system is installed in the detection light path of polynary photonic device, extensively
Angle multielement optical system uses infrared wide-angle light path design, and protecting window is equipped in light path；Processing circuit pop one's head in polynary light
The signal of sub- device is handled, and signal is converted and amplified, indoor control cabinet is transmitted through the cable to；
Comprising non-linear array arrangement infrared-sensitive chip and high efficiency and heat radiation pedestal in the polynary photonic device, wherein non-linear array is arranged
The quantity of cloth infrared-sensitive chip is no less than 16, can detect 16 or more motor train unit train different parts simultaneously, receives infrared
It does not generate and interferes with each other when radiation.
2. a kind of infrared detection system applied to high-speed EMUs as described in claim 1, it is characterised in that：Suitable for state
Interior all EMU vehicles.
3. a kind of infrared detection system applied to high-speed EMUs as described in claim 1, it is characterised in that：Indoor host computer
Including image processing module and integrated alarm module, the signal fitting multielement transducer probe acquisition is thermal map, and utilizes intelligent algorithm
Integrated alarm.
4. a kind of infrared detection system applied to high-speed EMUs as described in claim 1, it is characterised in that：The wide-angle
Optical system is designed for the infrared-sensitive member of non-linear arrangement, and multiple positions, and multiple sensitive members are realized while detecting
Between independently of one another, do not interfere with each other.
5. a kind of infrared acquisition method of application infrared detection system applied to high-speed EMUs as described in claim 1,
It is characterized in that, comprising the following steps：
Step 1: multielement transducer probe, wheel detector, AEI license numbers antenna and visualization license number module are fixed on rail
Side；
Step 2: when train passes through, the rails edge equipment such as multielement transducer probe, wheel detector acquires signal, and passes through cable transmission
Onto control cabinet；
When train passes through, wheel detector is triggered, AEI license number antennas acquire EMU license number label information, visualize license number
Module acquires and differentiates the train number and type information of EMU side, through cable transmission to indoor license number case；Polynary infrared probe
The infrared radiation signal for acquiring traction electric machine, gear-box, brake disc, axle box and wheel within sweep of the eye, through signal amplification, filter
Wave, conditioning and AD conversion, through cable transmission to indoor control cabinet；
Step 3: control cabinet is after acquisition signal processing to transferring to host, host is further processed to obtain motor train unit train underbody every
The temperature information of a component；
Control cabinet carries out filtering and Shape correction accordingly to the analog and digital signal that multielement transducer probe transmits, and then passes through
Cable transmission gives AD cards, be acquired be converted into digital signal or be transferred directly to the Ethernet interface of host by pick up software into
Row receives, and temperature computation uses adaptive algorithm, passes through formulaObtain the temperature of each component in EMU car bottom
Ta；
Step 4: host handles the temperature data of detection, the infrared chart at EMU car bottom is generated, EMU car is obtained
The integrated temperature Ts of each component in bottom；
Step 5: judging whether the integrated temperature Ts of each component is more than the preset value T1 of the component, if it is, sending out heat-flash
Early warning；Otherwise, it continues to determine whether to be more than preset value T2, if it is, sending out sharp thermal warning；Otherwise, any alarm is not sent out；
Step 6: by center is uploaded to the analysis of the thermal map of motor-car group parts and message, and as needed, by under communication system
Issue the monitoring system on motor train unit train.
6. a kind of infrared acquisition method applied to high-speed EMUs as claimed in claim 5, which is characterized in that the step
Rapid four are specially：After the temperature data of detection is fitted to thermal map by host, by intelligent thermal map image processing techniques, it is invalid to reject
Interference, recalculates the heat condition of each component of motor train unit train and optimized, obtained on the basis of Ta accurate, true
Real heating temperature data Tb；
Meanwhile comprehensive intelligent analysis is carried out by system other sensors, the data of center big data server, Tb is repaiied
Just, and the heat of combination EMU sentences model and heat sentences standard, obtains the integrated temperature Ts of each component.
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| CN114572271A (en) * | 2022-02-15 | 2022-06-03 | 北京康拓红外技术股份有限公司 | Sunlight interference resistant temperature measuring device and method based on railway infrared shaft temperature detection |
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