CN110293997B - Tramcar anti-interference signal control system and axle counting equipment - Google Patents
Tramcar anti-interference signal control system and axle counting equipment Download PDFInfo
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- CN110293997B CN110293997B CN201910522982.3A CN201910522982A CN110293997B CN 110293997 B CN110293997 B CN 110293997B CN 201910522982 A CN201910522982 A CN 201910522982A CN 110293997 B CN110293997 B CN 110293997B
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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 vehicle train, e.g. pedals
- 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 vehicle train, e.g. pedals
- B61L1/16—Devices for counting axles; Devices for counting vehicles
- B61L1/163—Detection devices
- B61L1/165—Electrical
Abstract
The invention relates to the technical field of tramcar signals, in particular to an anti-interference signal control system and axle counting equipment for a tramcar. The signal control system is an axle counting system, and the axle counting system comprises: a shaping module; a waveform detection module; a judgment module; and an interference signal filtering module. According to the axle counting system and the axle counting device, the waveform characteristic data are extracted according to the two pulse signals of the wheel sensor, and whether the first pulse signal and the second pulse signal meet the axle counting signal characteristic or not is judged according to the waveform characteristic data so as to identify abnormal interference pulse signals and improve the axle counting accuracy.
Description
Technical Field
The invention relates to the technical field of tramcar signals, in particular to an anti-interference signal control system and axle counting equipment for a tramcar.
Background
In the operation process of the axle counting device, abnormal pulses are often generated due to external interference, continuous waveforms formed when a train passes through a sensor are shown in fig. 1, waveforms at two ends in fig. 1 are generated by induction plates, and two waveforms in the middle are interference waveforms of a charging blade.
In view of the above, the defects in the prior art are overcome, and a novel anti-interference signal control system for a tramcar is provided, so as to analyze the waveform difference formed by the sensing of the sensing plate and the charging blade by processing the axle pulse signal and the interference signal, and then filter the similar interference signal such as the charging blade, and correctly identify the axle pulse and the interference pulse.
Disclosure of Invention
The invention aims to provide an anti-interference signal control system and an axle counting device for a tramcar, aiming at the defects of the prior art.
The object of the invention can be achieved by the following technical measures:
the invention provides an anti-interference signal control system for a tramcar, which comprises an axle counting system for detecting, analyzing and judging tramcar position information, wherein the axle counting system comprises:
the shaping module is used for generating a first pulse signal and a second pulse signal according to induction signals of two induction circuits of the wheel sensor respectively;
the waveform detection module is used for generating waveform characteristic data according to the first pulse signal and the second pulse signal;
the judging module is used for judging whether the first pulse signal and the second pulse signal meet preset conditions according to the waveform characteristic data;
the interference signal filtering module is used for extracting the first pulse signal and the second pulse signal as axle counting signals of the wheel sensor to output when the judgment result of the judging module is yes; otherwise, the first pulse signal and the second pulse signal are used as interference signals to be filtered.
Preferably, the waveform characteristic data further includes an overlapping range of the first pulse signal and the second pulse signal;
the waveform detection module is used for respectively acquiring the appearance time and the disappearance time of the pulse edges of the first pulse signal and the second pulse signal; determining the overlapping range of the first pulse signal and the second pulse signal according to the disappearance moment of the first pulse signal and the appearance moment of the second pulse signal;
the judging module is used for judging whether the overlapping range of the first pulse signal and the second pulse signal is larger than a preset time threshold value according to the waveform characteristic data.
Preferably, the waveform characteristic data includes pulse widths of the first pulse signal and the second pulse signal;
the waveform detection module is used for respectively acquiring the pulse widths of the first pulse signal and the second pulse signal;
the judging module is used for judging whether the pulse width of the first pulse signal and the pulse width of the second pulse signal are larger than a preset pulse width threshold value or not according to the waveform characteristic data.
Preferably, the waveform characteristic data further includes an overlapping range of the first pulse signal and the second pulse signal;
the waveform detection module is further used for respectively acquiring the appearance time and the disappearance time of the pulse edges of the first pulse signal and the second pulse signal; determining the overlapping range of the first pulse signal and the second pulse signal according to the disappearance moment of the first pulse signal and the appearance moment of the second pulse signal;
the judging module is further used for judging whether the overlapping range of the first pulse signal and the second pulse signal is larger than a preset time threshold value according to the waveform characteristic data.
Preferably, the axle counting system further comprises:
the counting module is used for identifying the running direction of the train according to the axle counting signals of the wheel sensors and calculating the number of wheels;
and the axle counting module is used for judging whether the track section is occupied or idle according to the number of wheels of the two wheel sensors positioned at the two ends of the same track section.
The invention also provides an anti-interference axle counting device, which comprises:
the wheel sensor comprises two magnetic heads and two induction circuits for forming induction signals according to the magnetic field changes of the magnetic heads;
the amplifying plate is used for generating a first pulse signal and a second pulse signal according to induction signals of two induction circuits of the wheel sensor respectively;
a filter circuit for filtering an input signal;
a memory for storing instructions;
a processor for executing the instructions;
the instructions, when executed on the processor, perform processes comprising:
generating waveform characteristic data according to the first pulse signal and the second pulse signal;
judging whether the first pulse signal and the second pulse signal meet preset conditions or not according to the waveform characteristic data;
when the judgment result is yes, controlling the filter circuit to extract the first pulse signal and the second pulse signal to be used as axle counting signals of a wheel sensor for outputting; otherwise, controlling the filter circuit to filter the first pulse signal and the second pulse signal as interference signals.
Preferably, the axle counting apparatus further comprises:
the axle counting plate is used for identifying the running direction of the train according to the axle counting signals of the wheel sensors and calculating the number of wheels; and judging whether the track section is occupied or idle according to the number of wheels of two wheel sensors positioned at two ends of the same track section.
Preferably, the waveform characteristic data includes pulse widths of the first pulse signal and the second pulse signal;
respectively acquiring the pulse widths of the first pulse signal and the second pulse signal;
and judging whether the pulse width of the first pulse signal and the pulse width of the second pulse signal are larger than a preset pulse width threshold value or not according to the waveform characteristic data.
Preferably, the waveform characteristic data includes an overlapping range of the first pulse signal and the second pulse signal;
the instructions when executed on the processor further perform a process comprising:
respectively acquiring the appearance time and the disappearance time of the pulse edges of the first pulse signal and the second pulse signal;
determining the overlapping range of the first pulse signal and the second pulse signal according to the disappearance moment of the first pulse signal and the appearance moment of the second pulse signal;
and judging whether the overlapping range of the first pulse signal and the second pulse signal is larger than a preset time threshold value or not according to the waveform characteristic data.
Preferably, the waveform characteristic data includes an overlapping range of the first pulse signal and the second pulse signal, and pulse widths of the first pulse signal and the second pulse signal;
the instructions when executed on the processor further perform a process comprising:
respectively acquiring the appearance time and the disappearance time of the pulse edges of the first pulse signal and the second pulse signal;
respectively acquiring the pulse widths of the first pulse signal and the second pulse signal;
determining the overlapping range of the first pulse signal and the second pulse signal according to the disappearance moment of the first pulse signal and the appearance moment of the second pulse signal;
and judging whether the pulse width of the first pulse signal and the pulse width of the second pulse signal are greater than a preset pulse width threshold value according to the waveform characteristic data, and judging whether the overlapping range of the first pulse signal and the second pulse signal is greater than a preset time threshold value according to the waveform characteristic data.
The control system and the axle counting equipment extract waveform characteristic data according to the two pulse signals of the wheel sensor, and then judge whether the first pulse signal and the second pulse signal meet the axle counting signal characteristic according to the waveform characteristic data so as to identify abnormal interference pulse signals and improve the axle counting accuracy.
Drawings
Fig. 1 is a waveform acquisition diagram when there is interference in the axle counting signal of the wheel sensor of the present invention.
Fig. 2 is a block diagram showing a configuration of a tramcar interference-free signal control system according to embodiment 1 of the present invention.
Fig. 3 is a waveform diagram of a disturbance signal of the wheel sensor in the present invention.
Fig. 4 is a schematic diagram of axle counting signal formation of the wheel sensor.
Fig. 5 is a waveform diagram of the axle counting signal of the wheel sensor.
Fig. 6 is a block diagram showing a configuration of a tramcar interference-free signal control system according to embodiment 2 of the present invention.
Fig. 7 is a block diagram of the anti-interference axle counting device according to embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to make the description of the present disclosure more complete and complete, the following description is given for illustrative purposes with respect to the embodiments and examples of the present invention; it is not intended to be the only form in which the embodiments of the invention may be practiced or utilized. The embodiments are intended to cover the features of the various embodiments as well as the method steps and sequences for constructing and operating the embodiments. However, other embodiments may be utilized to achieve the same or equivalent functions and step sequences.
Terms such as "processing," "computing," "calculating," "determining," "establishing," "analyzing," "checking," or the like, may be used in this specification to refer to an operation and/or process of a computer, computing platform, computing system, or other electronic computing device that manipulates and/or transforms data represented as physical (electronic) quantities within the computer's registers and/or memories into other data similarly represented as physical quantities within the computer's registers and/or memories or other information storage medium that may store instructions to perform the operation and/or process.
An embodiment 1 of the present invention provides an anti-interference signal control system for a tramcar, where the signal control system includes an axle counting system, and as shown in fig. 2, the axle counting system includes: the system comprises a shaping module 10, a waveform detection module 20, a judgment module 30 and an interference signal filtering module 40, wherein the shaping module 10 is used for generating a first pulse signal and a second pulse signal according to induction signals of two induction circuits of a wheel sensor respectively; the waveform detection module 20 is configured to generate waveform feature data according to the first pulse signal and the second pulse signal; the judging module 30 is configured to judge whether the first pulse signal and the second pulse signal meet a preset condition according to the waveform feature data; the interference signal filtering module 40 is configured to, when the determination result is yes, extract the first pulse signal and the second pulse signal as axle counting signals of the wheel sensor to output; otherwise, the first pulse signal and the second pulse signal are used as interference signals to be filtered.
When the induction plate or the charging blade is close to the magnetic head of the wheel sensor, the magnetic field of the magnetic head is changed, an induction circuit connected with the magnetic head generates an induction signal corresponding to the magnetic field change, the shaping module 10 generates a pulse signal according to the induction signal, specifically, a threshold voltage is set in the shaping module 10, and when the voltage value of the induction signal is greater than or equal to the threshold voltage, a pulse is generated; when the voltage value of the induction signal is smaller than the threshold voltage, no pulse is generated, so that the pulse part corresponds to the induction signal of which the voltage value is larger than or equal to the threshold voltage.
Since the train wheel passes through the two magnetic heads of the wheel sensor in sequence, the two pulse signals are considered to be effective axle counting signals of the wheel sensor only if the two pulse signals have the overlapped characteristic in sequence, as shown in fig. 3, the phase relation of the two pulse signals represents the movement direction of the wheel, and the system identifies the running direction of the wheel. And the interference pulse signals generated by the charging blade approaching two magnetic heads in sequence are shown in figure 4, and the two interference pulses do not have overlapping ranges.
Referring to fig. 4, the glitch signal is typically very short in duration, so in the third preferred embodiment, the waveform characterization data includes: the pulse widths of the first pulse signal and the second pulse signal. Referring to fig. 5, the waveform detecting module 20 is used for obtaining the pulse width t of the first pulse signal12-t11Obtaining the pulse width t of the second pulse signal22-t21. In the determining module 30, the preset condition is that the pulse width of the first pulse signal and the pulse width of the second pulse signal are both greater than the preset pulse width threshold, and then the determining module 30 is configured to detect the pulse width t of the first pulse signal obtained by the waveform detecting module 20 according to the preset pulse width threshold, where the preset condition is that the pulse width of the first pulse signal and the pulse width of the second pulse signal are both greater than the preset pulse width threshold, and the pulse width t of the first pulse signal is greater than the preset pulse width threshold12-t11And a pulse width t of the second pulse signal22-t21And judging whether the first pulse signal and the second pulse signal meet a preset condition.
In a second preferred embodiment, the waveform characteristic data is an overlapping range of the first pulse signal and the second pulse signal. Specifically, referring to fig. 5, the waveform detecting module 20 is configured to obtain an occurrence time t of a pulse edge of the first pulse signal11And a disappearance time t12Acquiring the occurrence time t of the pulse edge of the second pulse signal21And a disappearance time t22(ii) a According to the disappearance moment t of the first pulse signal12And the second pulse signalAt the occurrence time t21Determining the overlap range t of the first pulse signal and the second pulse signal12-t21. In the determining module 30, the preset condition is that the overlapping range of the first pulse signal and the second pulse signal is greater than the preset time threshold, and then the determining module 30 is configured to detect the overlapping range t obtained by the module 20 according to the waveform12-t21And judging whether the first pulse signal and the second pulse signal meet a preset condition. Preferably, the preset time threshold is 2 ms.
Further, in a third preferred embodiment, the waveform feature data includes: (i) an overlap range of the first pulse signal and the second pulse signal, and (ii) a pulse width of the first pulse signal and the second pulse signal. Referring to fig. 5, the waveform detecting module 20 is configured to obtain an occurrence time t of a pulse edge of the first pulse signal11And a disappearance time t12Acquiring the occurrence time t of the pulse edge of the second pulse signal21And a disappearance time t22(ii) a Then, the pulse width t of the first pulse signal is acquired12-t11Obtaining the pulse width t of the second pulse signal22-t21(ii) a Then, the disappearance time t according to the first pulse signal12And the occurrence time t of the second pulse signal21Determining the overlap range t of the first pulse signal and the second pulse signal12-t21. In the determining module 30, the preset conditions are that the overlapping range of the first pulse signal and the second pulse signal is greater than the preset time threshold and the pulse width of the first pulse signal and the pulse width of the second pulse signal are both greater than the preset pulse width threshold, so the determining module 30 is configured to determine the overlapping range t obtained by the waveform detecting module 20 according to the overlapping range t12-t21The pulse width t of the first pulse signal12-t11And a pulse width t of the second pulse signal22-t21And judging whether the first pulse signal and the second pulse signal meet a preset condition.
In the fourth preferred embodiment, specifically, the waveform detecting module 20 may further include a waveform diagram generating unit and a feature extracting unit, where the waveform diagram generating unit is configured to perform waveform detection on the first pulse signal and the second pulse signal respectively to obtain a first waveform diagram and a second waveform diagram respectively; the feature extraction unit is used for extracting waveform feature data according to the first oscillogram and the second oscillogram.
When the interference signal filtering module 40 meets a preset condition, extracting the first pulse signal and the second pulse signal as axle counting signals of a wheel sensor for outputting; and when the preset condition is not met, filtering the first pulse signal and the second pulse signal as interference signals.
An embodiment 2 of the present invention provides an anti-interference signal control system for a tramcar, where the signal control system is an axle counting system, and please refer to fig. 6, where the axle counting system includes: the shaping module 10, the waveform detecting module 20, the determining module 30, the interference signal filtering module 40, the counting module 50, and the axle counting module 60, wherein please refer to embodiment 1 for the description of the shaping module 10, the waveform detecting module 20, the determining module 30, and the interference signal filtering module 40, which is not described in detail herein.
The counting module 50 is used for identifying the train running direction and calculating the number of wheels according to the axle counting signals of the wheel sensors; the axle counting module 60 is used for judging whether the track section is occupied or vacant according to the number of wheels of the two wheel sensors positioned at the two ends of the same track section.
Specifically, the counting module 50 determines the train running direction according to the occurrence sequence of the first pulse signal and the second pulse signal in the axle counting signal, and counts the number of wheels passing through the corresponding wheel sensor by one after receiving the axle counting signal. When the number of wheels of two wheel sensors at two ends of the same track section is the same, the axle counting module 60 judges that the train exits the section, and the section is idle; when the number of wheels of two wheel sensors at two ends of the same track section is different, the train is judged not to run out of the section, and the section is occupied.
An embodiment 3 of the present invention provides an anti-interference axle counting device for a tramcar track, and please refer to fig. 7, where the axle counting device includes: at least two wheel sensors, an amplification board, a memory, a processor, a filter circuit, and an axle counting board.
Each wheel sensor comprises two magnetic heads and two induction circuits for forming induction signals according to the magnetic field changes of the magnetic heads, and the induction circuits are arranged in one-to-one correspondence with the magnetic heads. The amplifying plate is used for generating a first pulse signal and a second pulse signal according to induction signals of two induction circuits of the wheel sensor respectively. The filter circuit is used for filtering the axle counting signals of the wheel sensor. The memory is used for storing instructions; the processor is configured to execute the instructions. The axle counting plate is used for identifying the running direction of the train according to the axle counting signals of the wheel sensors and calculating the number of wheels; and judging whether the track section is occupied or idle according to the number of wheels of two wheel sensors positioned at two ends of the same track section.
The processor is a Central Processing Unit (CPU) that processes various instructions and may be a Central Processing Unit (CPU), a Digital Signal Processor (DSP), one or more processor cores, a single-core processor, a dual-core processor, a multi-core processor, a microprocessor, a host processor, a controller, a plurality of processors or controllers, a chip, a microchip, one or more circuits, loops, logic units, Integrated Circuits (ICs), an application specific IC (asic), or any other suitable multi-purpose or special purpose processor or controller.
The instructions, when executed on the processor, perform processes comprising:
generating waveform characteristic data according to the first pulse signal and the second pulse signal;
judging whether the first pulse signal and the second pulse signal meet preset conditions or not according to the waveform characteristic data;
when the judgment result is yes, controlling the filter circuit to extract the first pulse signal and the second pulse signal to be used as axle counting signals of a wheel sensor for outputting; otherwise, controlling the filter circuit to filter the first pulse signal and the second pulse signal as interference signals.
Specifically, the extraction process of the waveform feature data is as follows: respectively carrying out waveform detection on the first pulse signal and the second pulse signal to respectively obtain a first waveform diagram and a second waveform diagram; and extracting waveform characteristic data according to the first oscillogram and the second oscillogram.
In a first preferred embodiment, the waveform characteristic data includes pulse widths of the first pulse signal and the second pulse signal;
respectively acquiring the pulse widths of the first pulse signal and the second pulse signal;
and judging whether the pulse width of the first pulse signal and the pulse width of the second pulse signal are larger than a preset pulse width threshold value or not according to the waveform characteristic data.
In a second preferred embodiment, the waveform characteristic data includes an overlapping range of the first pulse signal and the second pulse signal.
The instructions when executed on the processor further perform a process comprising:
respectively acquiring the appearance time and the disappearance time of the pulse edges of the first pulse signal and the second pulse signal;
determining the overlapping range of the first pulse signal and the second pulse signal according to the disappearance moment of the first pulse signal and the appearance moment of the second pulse signal;
and judging whether the overlapping range of the first pulse signal and the second pulse signal is larger than a preset time threshold value or not according to the waveform characteristic data.
In a third preferred embodiment, the waveform characteristic data includes an overlapping range of the first pulse signal and the second pulse signal, and pulse widths of the first pulse signal and the second pulse signal;
the instructions when executed on the processor further perform a process comprising:
respectively acquiring the appearance time and the disappearance time of the pulse edges of the first pulse signal and the second pulse signal;
respectively acquiring the pulse widths of the first pulse signal and the second pulse signal;
determining the overlapping range of the first pulse signal and the second pulse signal according to the disappearance moment of the first pulse signal and the appearance moment of the second pulse signal;
and judging whether the pulse width of the first pulse signal and the pulse width of the second pulse signal are greater than a preset pulse width threshold value according to the waveform characteristic data, and judging whether the overlapping range of the first pulse signal and the second pulse signal is greater than a preset time threshold value according to the waveform characteristic data.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides an anti-interference signal control system of tram which characterized in that, it includes the meter axle system that is used for detecting, analysis, judgement tram positional information, the meter axle system includes:
the shaping module is used for generating a first pulse signal and a second pulse signal according to induction signals of two induction circuits of the wheel sensor respectively;
the waveform detection module is used for generating waveform characteristic data according to the first pulse signal and the second pulse signal; the judging module is used for judging whether the first pulse signal and the second pulse signal meet preset conditions according to the waveform characteristic data;
the interference signal filtering module is used for extracting the first pulse signal and the second pulse signal as axle counting signals of the wheel sensor to output when the judgment result of the judging module is yes; otherwise, filtering the first pulse signal and the second pulse signal as interference signals;
the waveform characteristic data comprises an overlapping range of the first pulse signal and the second pulse signal; the waveform detection module is used for respectively acquiring the appearance time and the disappearance time of the pulse edges of the first pulse signal and the second pulse signal; determining the overlapping range of the first pulse signal and the second pulse signal according to the disappearance moment of the first pulse signal and the appearance moment of the second pulse signal; the judging module is used for judging whether the overlapping range of the first pulse signal and the second pulse signal is larger than a preset time threshold value or not according to the waveform characteristic data;
and/or the waveform characteristic data comprises pulse widths of the first pulse signal and the second pulse signal; the waveform detection module is used for respectively acquiring the pulse widths of the first pulse signal and the second pulse signal; the judging module is used for judging whether the pulse width of the first pulse signal and the pulse width of the second pulse signal are larger than a preset pulse width threshold value or not according to the waveform characteristic data.
2. The tram tamper-resistant signal control system of claim 1, wherein the axle counting system further comprises:
the counting module is used for identifying the running direction of the train according to the axle counting signals of the wheel sensors and calculating the number of wheels;
and the axle counting module is used for judging whether the track section is occupied or idle according to the number of wheels of the two wheel sensors positioned at the two ends of the same track section.
3. An anti-jamming axle counting device, comprising:
the wheel sensor comprises two magnetic heads and two induction circuits for forming induction signals according to the magnetic field changes of the magnetic heads;
the amplifying plate is used for generating a first pulse signal and a second pulse signal according to induction signals of two induction circuits of the wheel sensor respectively;
a filter circuit for filtering an input signal;
a memory for storing instructions;
a processor for executing the instructions;
the instructions, when executed on the processor, perform processes comprising:
generating waveform characteristic data according to the first pulse signal and the second pulse signal;
judging whether the first pulse signal and the second pulse signal meet preset conditions or not according to the waveform characteristic data;
when the judgment result is yes, controlling the filter circuit to extract the first pulse signal and the second pulse signal to be used as axle counting signals of a wheel sensor for outputting; otherwise, controlling the filter circuit to filter the first pulse signal and the second pulse signal as interference signals;
the waveform characteristic data comprises pulse widths of the first pulse signal and the second pulse signal; respectively acquiring the pulse widths of the first pulse signal and the second pulse signal; judging whether the pulse width of the first pulse signal and the pulse width of the second pulse signal are larger than a preset pulse width threshold value or not according to the waveform characteristic data;
and/or the waveform characteristic data comprises an overlap range of the first pulse signal and the second pulse signal; the instructions when executed on the processor further perform a process comprising: respectively acquiring the appearance time and the disappearance time of the pulse edges of the first pulse signal and the second pulse signal; determining the overlapping range of the first pulse signal and the second pulse signal according to the disappearance moment of the first pulse signal and the appearance moment of the second pulse signal; and judging whether the overlapping range of the first pulse signal and the second pulse signal is larger than a preset time threshold value or not according to the waveform characteristic data.
4. The anti-tamper axle counting device of claim 3, further comprising:
the axle counting plate is used for identifying the running direction of the train according to the axle counting signals of the wheel sensors and calculating the number of wheels; and judging whether the track section is occupied or idle according to the number of wheels of two wheel sensors positioned at two ends of the same track section.
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 |
| DE202019005540.1U DE202019005540U1 (en) | 2019-06-17 | 2019-08-19 | Axle counting system |
| PCT/CN2019/101372 WO2020252881A1 (en) | 2019-06-17 | 2019-08-19 | Axle counting system |
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| CN201910522982.3A CN110293997B (en) | 2019-06-17 | 2019-06-17 | Tramcar anti-interference signal control system and axle counting equipment |
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| CN110293997A CN110293997A (en) | 2019-10-01 |
| CN110293997B true CN110293997B (en) | 2021-10-01 |
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| CN111478617B (en) * | 2020-04-02 | 2021-11-16 | 广东美的制冷设备有限公司 | Pulse circuit, half-bridge drive circuit, circuit board and air conditioner |
| CN111525566B (en) * | 2020-06-03 | 2022-01-18 | 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 |
| CN115195813B (en) * | 2022-06-06 | 2023-06-30 | 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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| CN105966420A (en) * | 2016-06-15 | 2016-09-28 | 湖南工业大学 | Rail wheel sensing device |
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| DE19946226C1 (en) * | 1999-09-22 | 2001-03-29 | Siemens Ag | Method for determining vehicle wheels that have passed a point of delivery |
| CN203637855U (en) * | 2013-11-25 | 2014-06-11 | 深圳科安达电子科技股份有限公司 | Axle-counting system |
| CN103640596B (en) * | 2013-11-25 | 2015-09-16 | 深圳科安达电子科技股份有限公司 | A kind of axle counting system and for the axis signal process of this axle counting system and axle counting method |
| CN205737587U (en) * | 2016-06-15 | 2016-11-30 | 湖南工业大学 | A kind of axle counting sensing device |
| CN206217920U (en) * | 2016-06-15 | 2017-06-06 | 湖南工业大学 | A kind of track wheel-sensors device |
| CN105946899B (en) * | 2016-06-15 | 2017-11-03 | 湖南工业大学 | Axle counting sensing device |
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| CN105966420A (en) * | 2016-06-15 | 2016-09-28 | 湖南工业大学 | Rail wheel sensing device |
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