CN110293997A - The jamproof whistle control system of tramcar and axis-counting device - Google Patents
The jamproof whistle control system of tramcar and axis-counting device Download PDFInfo
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- CN110293997A CN110293997A CN201910522982.3A CN201910522982A CN110293997A CN 110293997 A CN110293997 A CN 110293997A CN 201910522982 A CN201910522982 A CN 201910522982A CN 110293997 A CN110293997 A CN 110293997A
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- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000000284 extract Substances 0.000 claims abstract description 9
- 238000007493 shaping process Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 230000008034 disappearance Effects 0.000 claims description 18
- 230000001939 inductive effect Effects 0.000 claims description 13
- 210000001367 artery Anatomy 0.000 claims description 9
- 210000003462 vein Anatomy 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000011664 signaling Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 12
- 238000000605 extraction Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- 230000002688 persistence Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
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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
- B61L1/16—Devices for counting axles; Devices for counting vehicles
- B61L1/161—Devices for counting axles; Devices for counting vehicles characterised by the counting methods
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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
- B61L1/16—Devices for counting axles; Devices for counting vehicles
- B61L1/163—Detection devices
- B61L1/165—Electrical
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Radar Systems Or Details Thereof (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The present invention relates to tramcar signalling technique fields, and in particular to a kind of jamproof whistle control system of tramcar and axis-counting device.One axle counting system of whistle control system, the axle counting system includes: Shaping Module；Waveform detection module；Judgment module；Interference signal filtering module.Axle counting system and axis-counting device of the invention extracts waveform feature data according to two pulse signals of wheel detector, judge whether the first pulse signal and the second pulse signal meet axle-counting signal feature further according to waveform feature data, to identify abnormal disturbing pulse signal, meter shaft accuracy is improved.
Description
Technical field
The present invention relates to tramcar signalling technique fields, and in particular to a kind of tramcar jamproof signal control system
System and axis-counting device.
Background technique
Axis-counting device because of external disturbance, usually generates abnormal pulsers, train is formed by sensor during operation
For continuous wave as shown in Figure 1, the waveform in Fig. 1 positioned at both ends is what tablet generated, being located in the middle two waveforms is charging
The interference waveform of blade, said circumstances cause axis-counting device output abnormality to occupy, are especially used in the signal control of tramcar
In system processed, train uses storage battery power supply to charge a battery when train is stopped AT STATION, and charging blade interferes meter shaft to pass
Sensor, the probability for forming abnormal pulsers are very big.
In consideration of it, overcoming the above defect in the prior art, a kind of jamproof signal control of new tramcar is provided
System, to be formed by different wave shape for tablet and charging blade induction by processing axis pulse signal and interference signal
It is analyzed, then filters the similar interference signals such as charging blade, it is correct to identify axis pulse and disturbing pulse.
Summary of the invention
It is an object of the invention in view of the above drawbacks of the prior art, provide a kind of jamproof signal control of tramcar
System processed and axis-counting device.
The purpose of the present invention can be realized by technical measures below:
The present invention provides a kind of jamproof whistle control systems of tramcar comprising for detecting, analyzing, judge
The axle counting system of tramcar location information, the axle counting system include:
Shaping Module, for generating the first pulse letter according to the inductive signal of the two of wheel detector sensor circuits respectively
Number and the second pulse signal；
Waveform detection module, for generating wave character number according to first pulse signal and second pulse signal
According to；
Judgment module, for judging whether the first pulse signal and the second pulse signal are full according to the waveform feature data
Sufficient preset condition；
Interference signal filtering module, for extracting first pulse signal when the judging result of judgment module, which is, is
It is exported with second pulse signal as the axle-counting signal of wheel detector；Otherwise, by the first pulse signal and second
Pulse signal is filtered as interference signal.
Preferably, the waveform feature data further includes the overlapping range of the first pulse signal and the second pulse signal；
The waveform detection module is used to obtain the pulse of first pulse signal and second pulse signal respectively
Edge goes out current moment and disappearance moment；According to going out for disappear moment and second pulse signal of first pulse signal
Current moment determines the overlapping range of the first pulse signal and the second pulse signal；
The judgment module is used to judge the first pulse signal and the second pulse signal according to the waveform feature data
Whether overlapping range is greater than preset time threshold.
Preferably, the waveform feature data includes the pulse width of the first pulse signal and the second pulse signal；
The waveform detection module is used to obtain the pulse of first pulse signal and second pulse signal respectively
Width；
The judgment module is used to judge according to the waveform feature data pulse width and second of the first pulse signal
Whether the pulse width of pulse signal is greater than predetermined pulse width threshold value.
Preferably, the waveform feature data further includes the overlapping range of the first pulse signal and the second pulse signal；
The waveform detection module is also used to obtain the arteries and veins of first pulse signal and second pulse signal respectively
Trimming edge goes out current moment and disappearance moment；According to disappear moment and second pulse signal of first pulse signal
Current moment determines the overlapping range of the first pulse signal and the second pulse signal out；
The judgment module is also used to judge the first pulse signal and the second pulse signal according to the waveform feature data
Overlapping range whether be greater than preset time threshold.
Preferably, the axle counting system further include:
Counting module, for identifying current of traffic according to the axle-counting signal of wheel detector and calculating wheel count；
Meter shaft module, for judging institute according to the wheel count for two wheel detectors for being located at same track section both ends
State track section occupancy or idle.
The present invention also provides a kind of anti-interference axis-counting devices comprising:
At least two wheel detectors, the wheel detector include two magnetic heads, and for the magnetic field according to magnetic head
Variation forms two sensor circuits of inductive signal；
Amplification board, for generating the first pulse signal according to the inductive signal of the two of wheel detector sensor circuits respectively
With the second pulse signal；
Filter circuit, for being filtered to input signal；
Memory for storing instruction；
For executing the processor of described instruction；
Executing when described instruction executes on the processor includes following each process:
Waveform feature data is generated according to first pulse signal and second pulse signal；
Judge whether the first pulse signal and the second pulse signal meet preset condition according to the waveform feature data；
When the judgment result is yes, it controls the filter circuit and extracts first pulse signal and second pulse letter
It number is exported as the axle-counting signal of wheel detector；Otherwise, the filter circuit is controlled by the first pulse signal and second
Pulse signal is filtered as interference signal.
Preferably, the axis-counting device further include:
Meter shaft plate, for identifying current of traffic according to the axle-counting signal of wheel detector and calculating wheel count；With
And the track section occupancy or sky are judged according to the wheel count for two wheel detectors for being located at same track section both ends
It is not busy.
Preferably, the waveform feature data includes the pulse width of the first pulse signal and the second pulse signal；
The pulse width of first pulse signal and second pulse signal is obtained respectively；
According to the waveform feature data judge the first pulse signal pulse width and the second pulse signal pulse it is wide
Whether degree is greater than predetermined pulse width threshold value.
Preferably, the waveform feature data includes the overlapping range of the first pulse signal and the second pulse signal；
Also executing when described instruction executes on the processor includes following procedure:
Obtain the porch of first pulse signal and second pulse signal respectively goes out current moment and disappearance
Moment；
The first arteries and veins is determined according to the current moment that goes out of the disappearance moment of first pulse signal and second pulse signal
Rush the overlapping range of signal and the second pulse signal；
Judge whether the overlapping range of the first pulse signal and the second pulse signal is greater than according to the waveform feature data
Preset time threshold.
Preferably, the waveform feature data include the first pulse signal and the second pulse signal overlapping range and
The pulse width of first pulse signal and the second pulse signal；
Also executing when described instruction executes on the processor includes following procedure:
Obtain the porch of first pulse signal and second pulse signal respectively goes out current moment and disappearance
Moment；
The pulse width of first pulse signal and second pulse signal is obtained respectively；
The first arteries and veins is determined according to the current moment that goes out of the disappearance moment of first pulse signal and second pulse signal
Rush the overlapping range of signal and the second pulse signal；
According to the waveform feature data judge the first pulse signal pulse width and the second pulse signal pulse it is wide
Whether degree is greater than predetermined pulse width threshold value, judges the first pulse signal and the second pulse signal according to the waveform feature data
Overlapping range whether be greater than preset time threshold.
Control system and axis-counting device of the invention extracts wave character number according to two pulse signals of wheel detector
According to, judge whether the first pulse signal and the second pulse signal meet axle-counting signal feature further according to waveform feature data, with know
Not abnormal disturbing pulse signal improves meter shaft accuracy.
Detailed description of the invention
Fig. 1 is the waveform acquisition figure when axle-counting signal of wheel detector in the present invention has an interference.
Fig. 2 is the structural block diagram of the jamproof whistle control system of tramcar of the embodiment of the present invention 1.
Fig. 3 is the waveform diagram of the interference signal of wheel detector in the present invention.
Fig. 4 is the schematic diagram that the axle-counting signal of wheel detector is formed.
Fig. 5 is the waveform diagram of the axle-counting signal of wheel detector.
Fig. 6 is the structural block diagram of the jamproof whistle control system of tramcar of the embodiment of the present invention 2.
Fig. 7 is the structural block diagram of the anti-interference axis-counting device of the embodiment of the present invention 3.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing and specific implementation
Invention is further described in detail for example.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention,
It is not intended to limit the present invention.
In order to keep the narration of this disclosure more detailed with it is complete, below for embodiments of the present invention and specific real
It applies example and proposes illustrative description；But this not implements or uses the unique forms of the specific embodiment of the invention.Embodiment
In cover multiple specific embodiments feature and to construction with operate these specific embodiments method and step it is suitable with it
Sequence.However, can also reach identical or impartial function and sequence of steps using other specific embodiments.
Such as " processing ", " calculating ", " operation ", " determination ", " foundation ", " analysis ", " inspection " etc. described in this specification
Term may refer to the following operation and/or processing of computer, computing platform, computing system or other electronic computing devices, this
A little operations and/or handle the represented data manipulation of the physics (electronics) of the register of computer and/or memory amount and/or
It is transformed to computer register and/or memory or can store instruction to execute the other information storage of operation and/or processing
The analogously represented other data of the physical quantity of medium.
The embodiment of the present invention 1 provides a kind of jamproof whistle control system of tramcar, the whistle control system packet
An axle counting system is included, is please referred to shown in Fig. 2, the axle counting system includes: Shaping Module 10, waveform detection module 20, judges mould
Block 30 and interference signal filtering module 40, wherein Shaping Module 10 is used for respectively according to the two of wheel detector sensor circuits
Inductive signal generate the first pulse signal and the second pulse signal；Waveform detection module 20 is used to be believed according to first pulse
Number and second pulse signal generate waveform feature data；Judgment module 30 is used to judge the according to the waveform feature data
Whether one pulse signal and the second pulse signal meet preset condition；Interference signal filtering module 40 is used to when judging result be yes
When, it extracts first pulse signal and second pulse signal is exported as the axle-counting signal of wheel detector；It is no
Then, it is filtered using the first pulse signal and the second pulse signal as interference signal.
When tablet or charging blade are close to the magnetic head of wheel detector, cause the changes of magnetic field of magnetic head, connect with magnetic head
Sensor circuit generate corresponding with changes of magnetic field inductive signal, Shaping Module 10 according to inductive signal generation pulse signal,
Specifically, a threshold voltage is set in Shaping Module 10, when the voltage value of inductive signal is greater than or equal to the threshold voltage, is produced
Raw pulse；When the voltage value of inductive signal is less than the threshold voltage, pulse is not generated, therefore, segment pulse corresponding voltage value
More than or equal to the inductive signal of threshold voltage.
Since train wheel successively passes through two magnetic heads of wheel detector, then, two pulse signals must satisfy
Successively there is the feature of overlapping, is just considered as the axle-counting signal of effective wheel detector, as shown in figure 3, two pulse signals
Phase relation represent the direction of motion of wheel, system identifies wheel traffic direction with this.And charging blade is successively close to two
The disturbing pulse signal that a magnetic head generates is as shown in figure 4, overlapping range is not present in two disturbing pulses.
It please refers to shown in Fig. 4, disturbing pulse signal general persistence is extremely short, therefore, in third preferred embodiment
In, waveform feature data includes: the pulse width of the first pulse signal and the second pulse signal.It please refers to shown in Fig. 5, the waveform
Detection module 20 is used to obtain the pulse width t of the first pulse signal12-t11, obtain the pulse width t of the second pulse signal22-
t21.In the judgment module 30, preset condition is equal for the pulse width of the first pulse signal and the pulse width of the second pulse signal
Greater than predetermined pulse width threshold value, then, which is used to be believed according to 20 the first pulse of gained of the waveform detection module
Number pulse width t12-t11And second pulse signal pulse width t22-t21Judge the first pulse signal and the second pulse letter
Number whether meet preset condition.
In second preferred embodiment, waveform feature data is the overlapping of the first pulse signal and the second pulse signal
Range.Specifically, it please refers to shown in Fig. 5, which is used to obtain the porch of first pulse signal
Go out current moment t11With the moment t that disappears12, obtain the porch of the second pulse signal goes out current moment t21With the moment t that disappears22；
According to the disappearance moment t of first pulse signal12With the current moment t out of second pulse signal21Determine that the first pulse is believed
Number and the second pulse signal overlapping range t12-t21.In the judgment module 30, preset condition is the first pulse signal and second
The overlapping range of pulse signal is greater than preset time threshold, and then, which is used for according to the waveform detection module 20
Gained overlapping range t12-t21Judge whether the first pulse signal and the second pulse signal meet preset condition.Preferably, this is pre-
If time threshold is 2ms.
Further, in third preferred embodiment, waveform feature data includes: (i) the first pulse signal and
The overlapping range of two pulse signals, and the pulse width of (ii) first pulse signal and the second pulse signal.Please refer to Fig. 5 institute
Show, which is used to obtain the current moment t out of the porch of first pulse signal11With the moment that disappears
t12, obtain the porch of the second pulse signal goes out current moment t21With the moment t that disappears22；Then, the first pulse signal is obtained
Pulse width t12-t11, obtain the pulse width t of the second pulse signal22-t21；Then, according to first pulse signal
Disappear moment t12With the current moment t out of second pulse signal21Determine the overlapping of the first pulse signal and the second pulse signal
Range t12-t21.In the judgment module 30, preset condition is greater than for the overlapping range of the first pulse signal and the second pulse signal
It is wide that preset time threshold and the pulse width of the first pulse signal and the pulse width of the second pulse signal are all larger than predetermined pulse
Threshold value is spent, then, which is used for according to 20 gained overlapping range t of the waveform detection module12-t21, the first pulse letter
Number pulse width t12-t11And second pulse signal pulse width t22-t21Judge the first pulse signal and the second pulse letter
Number whether meet preset condition.
In the 4th preferred embodiment, specifically, waveform detection module 20 may further include waveform diagram generation
Unit and feature extraction unit, waveform diagram generation unit are used for respectively to first pulse signal and second pulse signal
Waveforms detection is carried out, to respectively obtain first waveform figure and the second waveform diagram；Feature extraction unit is used for according to the first wave
Shape figure and second waveform diagram extract waveform feature data.
The interference signal filtering module 40 extracts first pulse signal and second arteries and veins when meeting preset condition
The axle-counting signal that signal is rushed as wheel detector is exported；When being unsatisfactory for preset condition, by the first pulse signal and second
Pulse signal is filtered as interference signal.
The embodiment of the present invention 2 provides a kind of jamproof whistle control system of tramcar, the whistle control system
One axle counting system please refers to shown in Fig. 6, and the axle counting system includes: Shaping Module 10, waveform detection module 20, judgment module
30, interference signal filtering module 40, counting module 50 and meter shaft module 60, wherein Shaping Module 10, waveform detection module 20,
The explanation of judgment module 30 and interference signal filtering module 40 please refers to embodiment 1, herein without repeating one by one.
Wherein, counting module 50 is used to identify current of traffic according to the axle-counting signal of wheel detector and calculates wheel
Quantity；Meter shaft module 60 is used for according to the judgement of the wheel count for two wheel detectors for being located at same track section both ends
Track section occupies or the free time.
Specifically, counting module 50 is successively sentenced according to what the first pulse signal in axle-counting signal and the second pulse signal occurred
Disconnected current of traffic counts by the wheel count of corresponding wheel detector after receiving axle-counting signal and adds one.Meter shaft mould
Block 60 judges that train is driven out to the area when the wheel count of two wheel detectors positioned at same track section both ends is identical
Section, the section are idle；When being located at the wheel count difference of two wheel detectors at same track section both ends, train is judged
It is not driven out to the section, which occupies.
The embodiment of the present invention 3 provides a kind of anti-interference axis-counting device of streetcar track, please refers to shown in Fig. 7, described
Axis-counting device includes: at least two wheel detectors, amplification board, memory, processor, filter circuit and meter shaft plate.
Wherein, each wheel detector includes two magnetic heads and incudes for being formed according to the changes of magnetic field of magnetic head
Two sensor circuits of signal, sensor circuit are arranged in a one-to-one correspondence with magnetic head.Amplification board is used for respectively according to wheel detector
The inductive signal of two sensor circuits generates the first pulse signal and the second pulse signal.Filter circuit is used for wheel detector
Axle-counting signal be filtered.Memory is for storing instruction；Processor is for executing described instruction.Meter shaft plate is used for basis
The axle-counting signal identification current of traffic of wheel detector simultaneously calculates wheel count；And according to positioned at same track section two
The wheel count of two wheel detectors at end judges the track section occupancy or idle.
Processor is central processing unit, and for handling various instructions, processor can be central processing unit (CPU), number
Word signal processor (DSP), one or more processors kernel, single core processor, dual core processor, multi-core processor, Wei Chu
Reason device, host-processor, controller, multiple processors or controller, microchip, one or more circuits, circuit, are patrolled at chip
Collect unit, integrated circuit (IC), application-specific integrated circuit (ASIC) or any other suitable multi-purpose or application specific processor or controller.
Executing when described instruction executes on the processor includes following each process:
Waveform feature data is generated according to first pulse signal and second pulse signal；
Judge whether the first pulse signal and the second pulse signal meet preset condition according to the waveform feature data；
When the judgment result is yes, it controls the filter circuit and extracts first pulse signal and second pulse letter
It number is exported as the axle-counting signal of wheel detector；Otherwise, the filter circuit is controlled by the first pulse signal and second
Pulse signal is filtered as interference signal.
Specifically, the extraction process of waveform feature data excessively under: respectively to first pulse signal and second arteries and veins
It rushes signal and carries out waveforms detection, to respectively obtain first waveform figure and the second waveform diagram；According to the first waveform figure and described
Second waveform diagram extracts waveform feature data.
In first preferred embodiment, the waveform feature data includes the first pulse signal and the second pulse signal
Pulse width；
The pulse width of first pulse signal and second pulse signal is obtained respectively；
According to the waveform feature data judge the first pulse signal pulse width and the second pulse signal pulse it is wide
Whether degree is greater than predetermined pulse width threshold value.
In second preferred embodiment, the waveform feature data includes the first pulse signal and the second pulse signal
Overlapping range.
Also executing when described instruction executes on the processor includes following procedure:
Obtain the porch of first pulse signal and second pulse signal respectively goes out current moment and disappearance
Moment；
The first arteries and veins is determined according to the current moment that goes out of the disappearance moment of first pulse signal and second pulse signal
Rush the overlapping range of signal and the second pulse signal；
Judge whether the overlapping range of the first pulse signal and the second pulse signal is greater than according to the waveform feature data
Preset time threshold.
In third preferred embodiment, the waveform feature data includes the first pulse signal and the second pulse signal
Overlapping range and the first pulse signal and the second pulse signal pulse width；
Also executing when described instruction executes on the processor includes following procedure:
Obtain the porch of first pulse signal and second pulse signal respectively goes out current moment and disappearance
Moment；
The pulse width of first pulse signal and second pulse signal is obtained respectively；
The first arteries and veins is determined according to the current moment that goes out of the disappearance moment of first pulse signal and second pulse signal
Rush the overlapping range of signal and the second pulse signal；
According to the waveform feature data judge the first pulse signal pulse width and the second pulse signal pulse it is wide
Whether degree is greater than predetermined pulse width threshold value, judges the first pulse signal and the second pulse signal according to the waveform feature data
Overlapping range whether be greater than preset time threshold.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of jamproof whistle control system of tramcar, which is characterized in that it includes for detecting, analyzing, judge have
The axle counting system of rail electric car location information, the axle counting system include:
Shaping Module, for respectively according to the inductive signal of the two of wheel detector sensor circuits generate the first pulse signal and
Second pulse signal；
Waveform detection module, for generating waveform feature data according to first pulse signal and second pulse signal；
Judgment module, it is pre- for judging whether the first pulse signal and the second pulse signal meet according to the waveform feature data
If condition；
Interference signal filtering module, for extracting first pulse signal and institute when the judging result of judgment module, which is, is
The axle-counting signal that the second pulse signal is stated as wheel detector is exported；Otherwise, by the first pulse signal and the second pulse
Signal is filtered as interference signal.
2. the jamproof whistle control system of tramcar according to claim 1, which is characterized in that the wave character
Data further include the overlapping range of the first pulse signal and the second pulse signal；
The waveform detection module is used to obtain the porch of first pulse signal and second pulse signal respectively
Go out current moment and disappear the moment；When according to the appearance of the disappearance moment of first pulse signal and second pulse signal
Carve the overlapping range for determining the first pulse signal and the second pulse signal；
The judgment module is used to judge according to the waveform feature data overlapping of the first pulse signal and the second pulse signal
Whether range is greater than preset time threshold.
3. the jamproof whistle control system of tramcar according to claim 1, which is characterized in that the wave character
Data include the pulse width of the first pulse signal and the second pulse signal；
The waveform detection module is used to obtain the pulse width of first pulse signal and second pulse signal respectively；
The judgment module is used to judge according to the waveform feature data pulse width and the second pulse of the first pulse signal
Whether the pulse width of signal is greater than predetermined pulse width threshold value.
4. the jamproof whistle control system of tramcar according to claim 3, which is characterized in that the wave character
Data further include the overlapping range of the first pulse signal and the second pulse signal；
The waveform detection module is also used to obtain the edge of pulse of first pulse signal and second pulse signal respectively
Edge goes out current moment and disappearance moment；According to the appearance at the disappearance moment and second pulse signal of first pulse signal
Moment determines the overlapping range of the first pulse signal and the second pulse signal；
The judgment module is also used to judge according to the waveform feature data weight of the first pulse signal and the second pulse signal
Whether folded range is greater than preset time threshold.
5. the jamproof whistle control system of tramcar according to claim 3, which is characterized in that the axle counting system
Further include:
Counting module, for identifying current of traffic according to the axle-counting signal of wheel detector and calculating wheel count；
Meter shaft module, for judging the rail according to the wheel count for two wheel detectors for being located at same track section both ends
Road section occupies or the free time.
6. a kind of anti-interference axis-counting device, characterized in that it comprises:
At least two wheel detectors, the wheel detector include two magnetic heads, and for the changes of magnetic field according to magnetic head
Form two sensor circuits of inductive signal；
Amplification board, for generating the first pulse signal and the according to the inductive signal of the two of wheel detector sensor circuits respectively
Two pulse signals；
Filter circuit, for being filtered to input signal；
Memory for storing instruction；
For executing the processor of described instruction；
Executing when described instruction executes on the processor includes following each process:
Waveform feature data is generated according to first pulse signal and second pulse signal；
Judge whether the first pulse signal and the second pulse signal meet preset condition according to the waveform feature data；
When the judgment result is yes, it controls the filter circuit and extracts first pulse signal and second pulse signal work
It is exported for the axle-counting signal of wheel detector；Otherwise, the filter circuit is controlled by the first pulse signal and the second pulse
Signal is filtered as interference signal.
7. anti-interference axis-counting device according to claim 6, which is characterized in that the axis-counting device further include:
Meter shaft plate, for identifying current of traffic according to the axle-counting signal of wheel detector and calculating wheel count；And root
The track section occupancy or free time are judged according to the wheel count for two wheel detectors for being located at same track section both ends.
8. anti-interference axis-counting device according to claim 6, which is characterized in that the waveform feature data includes the first arteries and veins
Rush the pulse width of signal and the second pulse signal；
The pulse width of first pulse signal and second pulse signal is obtained respectively；
The pulse width of the first pulse signal is judged according to the waveform feature data and the pulse width of the second pulse signal is
It is no to be greater than predetermined pulse width threshold value.
9. anti-interference axis-counting device according to claim 6, which is characterized in that the waveform feature data includes the first arteries and veins
Rush the overlapping range of signal and the second pulse signal；
Also executing when described instruction executes on the processor includes following procedure:
Obtain the porch of first pulse signal and second pulse signal respectively goes out current moment and disappearance moment；
Determine that the first pulse is believed according to the current moment that goes out of the disappearance moment of first pulse signal and second pulse signal
Number and the second pulse signal overlapping range；
According to the waveform feature data judge the first pulse signal and the second pulse signal overlapping range whether be greater than it is default
Time threshold.
10. anti-interference axis-counting device according to claim 6, which is characterized in that the waveform feature data includes first
The pulse width of the overlapping range and the first pulse signal and the second pulse signal of pulse signal and the second pulse signal；
Also executing when described instruction executes on the processor includes following procedure:
Obtain the porch of first pulse signal and second pulse signal respectively goes out current moment and disappearance moment；
The pulse width of first pulse signal and second pulse signal is obtained respectively；
Determine that the first pulse is believed according to the current moment that goes out of the disappearance moment of first pulse signal and second pulse signal
Number and the second pulse signal overlapping range；
The pulse width of the first pulse signal is judged according to the waveform feature data and the pulse width of the second pulse signal is
It is no to be greater than predetermined pulse width threshold value, the weight of the first pulse signal and the second pulse signal is judged according to the waveform feature data
Whether folded range is greater than preset time threshold.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910522982.3A CN110293997B (en) | 2019-06-17 | 2019-06-17 | Tramcar anti-interference signal control system and axle counting equipment |
| PCT/CN2019/101372 WO2020252881A1 (en) | 2019-06-17 | 2019-08-19 | Axle counting system |
| DE202019005540.1U DE202019005540U1 (en) | 2019-06-17 | 2019-08-19 | Axle counting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910522982.3A CN110293997B (en) | 2019-06-17 | 2019-06-17 | Tramcar anti-interference signal control system and axle counting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110293997A true CN110293997A (en) | 2019-10-01 |
| CN110293997B CN110293997B (en) | 2021-10-01 |
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| CN201910522982.3A Active CN110293997B (en) | 2019-06-17 | 2019-06-17 | Tramcar anti-interference signal control system and axle counting equipment |
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| CN111525566A (en) * | 2020-06-03 | 2020-08-11 | 国网信息通信产业集团有限公司 | Method and system for managing power quality of transformer area |
| CN114104040A (en) * | 2020-08-27 | 2022-03-01 | 比亚迪股份有限公司 | Train positioning system |
| CN115195813A (en) * | 2022-06-06 | 2022-10-18 | 北京全路通信信号研究设计院集团有限公司 | Laser axle counting method and system |
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