CN110329116A - A kind of electric locomotive automatic passing over of neutral section detection device and its detection method - Google Patents
A kind of electric locomotive automatic passing over of neutral section detection device and its detection method Download PDFInfo
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- CN110329116A CN110329116A CN201910706076.9A CN201910706076A CN110329116A CN 110329116 A CN110329116 A CN 110329116A CN 201910706076 A CN201910706076 A CN 201910706076A CN 110329116 A CN110329116 A CN 110329116A
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- signal
- electric locomotive
- passing over
- neutral section
- bobber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
- B60M3/04—Arrangements for cutting in and out of individual track sections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of electric locomotive automatic passing over of neutral section detection device and its detection methods, it is related to acoustic detection technology field, device includes inlet wire sensor (1), signal picker (2), velocity sensor (3), bobber magnetic steel (4), sound collection unit (5), off-line sensors (6), car number identification system (7) and computer processing system；The signal picker (2), velocity sensor (3), bobber magnetic steel (4) and sound collection unit (5) are separately mounted to track side surfaces, the inlet wire sensor (1) and the off-line sensors (6) are separately positioned on the end of incoming cables of track and offline end, the car number identification system (7) are arranged on rear side of track end of incoming cables.The features such as present invention utilizes acoustic detection technology, realizes high efficient detection automatic passing over of neutral section, and anti-interference is stronger, recall rate is higher can take precautions against due to vehicle-mounted automatic passing over of neutral section failure bring security risk.
Description
Technical field
The present invention relates to acoustic detection technology fields, and in particular to and it is a kind of to utilize acoustic detection technology, certainly to electric locomotive
Moved the realization of the detection method of split-phase detection device.
Background technique
With the development of China railways cause, electric locomotive has been widely used in railway transport field, due to electrification
The contact net for power supplying of railway is powered using split-phase section, and electric locomotive must power off coasting in split-phase section, in excessive phase processor
On using based on vehicle-mounted automatic passing over of neutral section, manually supplemented by.
Due to the influence of electric locomotive running environment, automatic neutral-section passing device needs periodic detection.Traditional detection mode
By the way of artificial detection or detection track current.Manual detection efficiency is low, and artifical influence factor is high, can not carry out section's credit
Analysis.Track current detection mode, there is anti-interferences it is weak, recall rate is not high the disadvantages of.From the foregoing, it will be observed that designing a kind of anti-interference
Stronger, the method for the vehicle-mounted automatic passing over of neutral section detection device of the higher electric locomotive of recall rate of property, is electric locomotive automatic passing over of neutral section
The technical field technical issues that need to address.
Summary of the invention
Aiming at the problems existing in the prior art, the purpose of the present invention is utilizing acoustic detection technology, a kind of electric power is proposed
Locomotive vehicle-mounted automatic passing over of neutral section detection device and its detection method realize high efficient detection automatic passing over of neutral section, anti-interference is stronger,
The features such as recall rate is higher, prevention is due to vehicle-mounted automatic passing over of neutral section failure bring security risk.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of electric locomotive automatic passing over of neutral section detection device, including inlet wire sensor, signal picker, velocity sensor,
Bobber magnetic steel, sound collection unit, off-line sensors, car number identification system and computer processing system；The signal picker,
Velocity sensor, bobber magnetic steel and sound collection unit are separately mounted to track side surfaces, the inlet wire sensor and described offline
Sensor is separately positioned on the end of incoming cables of track and offline end, the car number identification system are arranged on rear side of track end of incoming cables.
Further, the velocity sensor is no less than three, and the bobber magnetic steel is no less than three, the sound collection
Unit is no less than two；The signal picker is installed along Orbital Symmetry, carries out data acquisition；The velocity sensor and institute
State bobber magnetic steel mounted in pairs；The velocity sensor and the bobber magnetic steel are installed using rounded projections arranged mode.
Judge whether locomotive reaches bobber magnetic steel position, the bobber magnetic steel by way of calculating locomotive present speed
Magnet steel cooperation on locomotive, controls the disconnection and closure of locomotive principal piece, the signal picker acquires and stores voice data
Information；Computer processing system can read voice data from signal picker, analyze and show voice data.
Sound collection unit in above-mentioned electric locomotive automatic passing over of neutral section detection device is not limited to microphone or other vibrations
Sensor collected sound signal or vibration signal.
The detection method of above-mentioned electric locomotive automatic passing over of neutral section detection device are as follows: firstly, electric locomotive enters detection zone
When, after inlet wire sensor obtains inlet wire signal, inlet wire signal is sent to signal picker, signal picker is started to work and sent
Start-up operation signal is to computer processing system, and voice signal when sound collection unit acquires current fan operation is as background
Signal；Then, electric locomotive passes through first bobber magnetic steel, and electric locomotive principal piece disconnects, and sound collection unit acquires current
Voice signal；Secondly, when electric locomotive passes through next bobber magnetic steel, electric locomotive principal piece closure, sound collection unit acquisition
The voice signal of fan operation；Again, electric locomotive passes through off-line sensors, after off-line sensors obtain off-lined signal, Xiang Xin
Number collector sends off-lined signal, the digital signal for the sound that signal picker acquisition sound collection unit is recorded, and sends
Power cut-off signal is to computer processing system；Finally, obtaining signal after computer processing system receives power cut-off signal
Collector data are analyzed and show data.
Electric locomotive fan operation when principal piece is closed, electric locomotive are disconnected in principal piece in above-mentioned automatic passing over of neutral section detection device
Blower stops when opening.Voice data when by acquisition blower start and stop believes the time domain of acquisition sound using Fourier transform
Number it is converted into frequency-region signal.Frequency-domain signal data is analyzed by computer processing system, judges the working condition of blower, and then sentence
Disconnected electric locomotive principal piece is closure or off-state.
Under background noise data and blower starting state in above-mentioned automatic passing over of neutral section detection device under blower halted state
Operation data judge frequency-domain waveform of the blower in operating status than blower halted state by the analysis of frequency-region signal
Under amplitude of the background noise data on several fixed frequency points want high.
Voice data in above-mentioned automatic passing over of neutral section detection device under all acquisition blower start and stop states all passes through computer
Software carries out the data processing of early period.Filtering interference signals make voice signal be more easier to be identified.
Computer processing system carries out the voice data under blower start and stop state in above-mentioned automatic passing over of neutral section detection device
Analysis, according to car number identification system, draws the best frequency-domain waveform figure of this license number blower start and stop.
The invention has the benefit that
1, the detection method of the invention using acoustic detection technology detection vehicle power locomotive automatic neutral-section passing device, this
Method be based on the different objects different principle of its vibration frequency during exercise, come detect automatic passing over of neutral section whether Yi Chang side
Method, the method is higher compared with conventional method recall rate, accuracy rate is higher.
2, what the present invention utilized is acoustic detection technology, this technology can not only pass through the start and stop of detection blower fan when implementing
State, and then judge the quality of vehicle mounted autopassing phase separation apparatus；It can also be right by big data analysis, the advanced technologies such as cloud computing
Current sound data are effectively analyzed, and whether detection locomotive has other security risks.
Detailed description of the invention
Fig. 1 is a kind of scheme of installation of electric locomotive automatic passing over of neutral section detection device of the present embodiment.
Fig. 2 is a kind of working principle diagram of the detection method of electric locomotive automatic passing over of neutral section detection device of the present embodiment.
Fig. 3 is a kind of sound collection original waveform figure of electric locomotive automatic passing over of neutral section detection device of the present embodiment.
Fig. 4 be in a kind of electric locomotive automatic passing over of neutral section detection device of the present embodiment sound collection after data are analyzed
Spectrum analysis figure.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of scheme of installation of electric locomotive automatic passing over of neutral section detection device of the present embodiment, including into
The bobber magnetic steel 4, two of velocity sensor 3, three of signal picker 2, three of line sensor 1, two sound collection unit 5, from
Line sensor 6, car number identification system 7 and computer processing system；The signal picker 2, velocity sensor 3, bobber magnetic steel 4
Track side surfaces are separately mounted to sound collection unit 5, the inlet wire sensor 1 and the off-line sensors 6 are separately positioned on
The end of incoming cables of track and offline end, the car number identification system 7 are arranged on rear side of track end of incoming cables.
The signal picker 2 is installed along Orbital Symmetry, carries out data acquisition；The velocity sensor 3 and the fortune
Dynamic 4 mounted in pairs of magnet steel；The velocity sensor 3 and the bobber magnetic steel 4 are installed using rounded projections arranged mode.
Judge whether locomotive reaches 4 position of bobber magnetic steel, 4 He of bobber magnetic steel by way of calculating locomotive present speed
Magnet steel cooperation on locomotive, controls the disconnection and closure of locomotive principal piece, and signal picker 2 acquires and stores voice data information；
Computer processing system can read voice data from signal picker 2, analyze and show above-mentioned data information.
Microphone can be used in sound collection unit 5 in the automatic passing over of neutral section detection device or other vibrating sensors are adopted
Collect voice signal or vibration signal.
As shown in Fig. 2, a kind of work of the detection method of electric locomotive automatic passing over of neutral section detection device of the present embodiment is former
Reason figure, in automatic passing over of neutral section detection process, signal picker 2 acquires the sound that several alternative sounds acquisition units 5 acquire
Signal, in these sound collection units detect electric locomotive during " --- principal piece disconnection --- principal piece is closed before principal piece disconnects "
The voice signal of blower, signal picker 2 convey data to computer processing system by way of wirelessly or non-wirelessly.Pass through
Processing and analysis to voice signal, and then it is able to detect the operational process of electric locomotive automatic passing over of neutral section, guarantee driving safety.
On the basis of Fig. 1, a kind of detection using acoustic detection technology to electric locomotive automatic passing over of neutral section detection device
Method, specific steps include:
Step 1: when electric locomotive enters detection zone, after inlet wire sensor 1 obtains inlet wire signal, to signal picker 2
Inlet wire signal is sent, signal picker 2 starts to work and sends start-up operation signal to computer processing system, sound collection list
Voice signal when the member current fan operation of acquisition is as background signal；
Step 2: electric locomotive passes through first bobber magnetic steel, electric locomotive principal piece is disconnected, and sound collection unit 5 acquires
Current voice signal；
Step 3: electric locomotive principal piece closure, sound collection unit 5 is adopted when electric locomotive passes through next bobber magnetic steel
The voice signal of wind collector operation；
Step 4: electric locomotive passes through off-line sensors 6, after off-line sensors 6 obtain off-lined signal, to signal picker
2 send off-lined signal, and signal picker 2 acquires the digital signal for the sound that sound collection unit is recorded, and sends end work
Make signal to computer processing system；
Step 5: obtaining the data of signal picker 2, analysis after computer processing system receives power cut-off signal
And show data.
In above-mentioned automatic passing over of neutral section detection device, sound collection unit 5 acquire electric locomotive " before principal piece disconnects ----it is main
During section disconnects --- after-principal piece closure " voice data of fan operation under state.Fig. 3 is the time domain waveform for acquiring sound,
At this point, being difficult to differentiate the operating status of blower by time domain waveform due to the influence of train external environment.
When electric locomotive passes through off-line sensors 6, signal picker 2 sends power cut-off letter to computer processing system
Number, computer processing system obtains 2 data of signal picker and analyzes, and obtains the frequency-domain waveform figure of Fig. 4.It is obtained by software algorithm
Out, the running frequency of blower nearby has bigger amplitude at 520HZ, 1100HZ, 1650HZ, 3200HZ.Stop in blower
When, this band frequency amplitude weakens.Train number recognition and this data analysis are matched by computer-processing software
After save.At this point, user remotely can be compared the test result at scene by user interface program.To user
Direct feel.
In conclusion computer processing system is transformed into frequency domain letter by software algorithm, the time-domain signal of voice data
Number, then frequency-region signal is analyzed, it has filtered out since outside environmental elements bring is interfered.By determining the specific of blower
Frequency-domain waveform, judges the operating status of power car automatic passing phase insulator device, and then reaches testing goal.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the present invention in any form, and appoints
What those skilled in the art, without departing from the scope of the present invention, according to the technical essence of the invention to
Any simple modification made by upper embodiment, equivalent variations and modification, are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of electric locomotive automatic passing over of neutral section detection device, it is characterised in that: including inlet wire sensor (1), signal picker
(2), velocity sensor (3), bobber magnetic steel (4), sound collection unit (5), off-line sensors (6), car number identification system (7) and
Computer processing system；The signal picker (2), velocity sensor (3), bobber magnetic steel (4) and sound collection unit (5) point
Be not mounted on track side surfaces, the inlet wire sensor (1) and the off-line sensors (6) be separately positioned on track end of incoming cables and
Offline end, the car number identification system (7) are arranged on rear side of track end of incoming cables.
2. electric locomotive automatic passing over of neutral section detection device according to claim 1, it is characterised in that: the velocity sensor
(3) three are no less than, the bobber magnetic steel (4) is no less than three, and the sound collection unit (5) is no less than two；The letter
Number collector (2) is installed along Orbital Symmetry, carries out data acquisition；The velocity sensor (3) and the bobber magnetic steel (4) at
To installation；Every three velocity sensors (3) are installed using rounded projections arranged mode, every three bobber magnetic steels
(4) it is also installed using rounded projections arranged mode.
3. electric locomotive automatic passing over of neutral section detection device according to claim 1, it is characterised in that: worked as by calculating locomotive
The mode of preceding speed judges whether locomotive reaches bobber magnetic steel (4) position, and the magnet steel on the bobber magnetic steel (4) and locomotive matches
It closes, controls the disconnection and closure of locomotive principal piece, the signal picker (2) acquires and stores voice data information；At computer
Reason system can read voice data from signal picker (2), analyze and show voice data.
4. electric locomotive automatic passing over of neutral section detection device according to claim 2, it is characterised in that: worked as by calculating locomotive
The mode of preceding speed judges whether locomotive reaches bobber magnetic steel (4) position, and the magnet steel on the bobber magnetic steel (4) and locomotive matches
It closes, controls the disconnection and closure of locomotive principal piece, the signal picker (2) acquires and stores voice data information；At computer
Reason system can read voice data from signal picker (2), analyze and show voice data.
5. according to claim 1 to electric locomotive automatic passing over of neutral section detection device described in one of 4, it is characterised in that: the sound
Sound acquisition unit (5) is not limited to microphone or other vibrating sensor collected sound signals or vibration signal.
6. a kind of electric locomotive automatic passing over of neutral section detection method, it uses electric locomotive automatic passing over of neutral section described in claim 1
Detection device, which comprises the following steps:
Step 1: when electric locomotive enters detection zone, after inlet wire sensor (1) obtains inlet wire signal, to signal picker (2)
Inlet wire signal is sent, signal picker (2) starts to work and sends start-up operation signal to computer processing system, sound collection
Voice signal when unit (5) the current fan operation of acquisition is as background signal；
Step 2: electric locomotive passes through first bobber magnetic steel, electric locomotive principal piece is disconnected, and sound collection unit (5) acquisition is worked as
The voice signal that preceding blower stops；
Step 3: when electric locomotive passes through next bobber magnetic steel, electric locomotive principal piece closure, sound collection unit (5) acquisition
The voice signal of fan operation；
Step 4: electric locomotive passes through off-line sensors (6), after off-line sensors (6) obtain off-lined signal, to signal picker
(2) off-lined signal, the digital signal for the sound that signal picker (2) acquisition sound collection unit is recorded are sent, and sends knot
Beam working signal is to computer processing system；
Step 5: obtaining signal picker (2) data after computer processing system receives power cut-off signal, analyzing and show
Registration evidence.
7. electric locomotive automatic passing over of neutral section detection method according to claim 6, it is characterised in that: electric locomotive is in principal piece
Fan operation when closure, electric locomotive blower when principal piece disconnects stop, voice data when by acquisition blower start and stop, then pass through
Fourier transform is crossed, the time-domain signal of acquisition sound is converted into frequency-region signal, frequency domain letter is analyzed by computer processing system
Number, judges the working condition of blower, and then judges that electric locomotive principal piece is closure or off-state.
8. electric locomotive automatic passing over of neutral section detection method according to claim 7, it is characterised in that: under blower halted state
Background noise data and blower starting state under operation data judge blower in operation shape by the analysis of frequency-region signal
Frequency-domain waveform when state is higher than amplitude of the background noise data under blower halted state on several fixed frequency points.
9. electric locomotive automatic passing over of neutral section detection method described according to claim 6 or 7 or 8, it is characterised in that: all acquisitions
Voice data under blower start and stop state all carries out the data processing of early period by computer software, and filtering interference signals make sound
Sound signal is more easier to be identified.
10. electric locomotive automatic passing over of neutral section detection method according to claim 9, it is characterised in that: computer disposal system
System analyzes the voice data under blower start and stop state, according to car number identification system (7), draws this license number blower start and stop
Best frequency-domain waveform figure.
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| CN201910706076.9A CN110329116B (en) | 2019-08-01 | 2019-08-01 | Automatic neutral section passing detection device and detection method for electric locomotive |
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Cited By (1)
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| CN112172619A (en) * | 2020-10-20 | 2021-01-05 | 中车青岛四方机车车辆股份有限公司 | Phase-split control method and related system |
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| WO2008005931A2 (en) * | 2006-06-30 | 2008-01-10 | Nac Service, Inc. | Acoustic based positioning system and method |
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