CN202870187U - High-voltage pulse acquisition module - Google Patents
High-voltage pulse acquisition module Download PDFInfo
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- CN202870187U CN202870187U CN 201220354769 CN201220354769U CN202870187U CN 202870187 U CN202870187 U CN 202870187U CN 201220354769 CN201220354769 CN 201220354769 CN 201220354769 U CN201220354769 U CN 201220354769U CN 202870187 U CN202870187 U CN 202870187U
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Abstract
The embodiment of the utility model discloses a high-voltage pulse acquisition module which comprises a high impedance sampling unit, an optoelectronic isolation unit, a modulus sampling unit, a digital compensation filtering unit, a pulse detection unit and a controller, wherein the controller controls the operation of the abovementioned units and the signal data calculation, the input end of the high impedance sampling unit inputs pulse signals, wave head signals and wave tail signals; the output end of the high impedance sampling unit is connected with the input end of the optoelectronic isolation unit; the output end of the optoelectronic isolation unit is connected with the input end of the modulus sampling unit; the output end of the modulus sampling unit is connected with the input end of the digital compensation filtering unit; and the pulse detection unit receives the output of the digital compensation filtering unit. The high-voltage pulse acquisition module overcomes the problem of a scopemeter measurement scheme in the prior art that as railway frequency-shift interference signals cannot be effectively filtered out, the measurement data are inaccurate during the measurement of the positive and negative peak values and the frequency of a high-voltage pulse signal.
Description
Technical field
The utility model relates to the railway track circuit technical field, more particularly, relates to a kind of high-voltage pulse acquisition module.
Background technology
High-voltage pulse track circuit generator is one of important equipment of electric affair system, its basic function is to remove the raceway surface iron rust, the principle of work of existing generator is to send irregular pulse ripple, and frequency is about 3Hz, be used for to receive the receiving circuit of this pulsating wave will described irregular pulse wavelength-division from the wave head of toothing shape with the wave rear of spike, thereby utilize described wave head and wave rear that the generation of the iron rust on described track vibratory impulse is finished removing.In order to obtain the data such as wave head effective value in described irregular pulse ripple occurrence frequency, amplitude size, pulse waveform curve and the described receiving circuit and wave rear effective value, need the high-voltage pulse acquisition module to gather, process and calculate.
Existing high-voltage pulse acquisition module adopts DSP to control 3 path Oscillographs and measures above-mentioned data, and the railway frequency-shift signal in the described pulsating wave of filtering disturbs after measurement, calculates the positive and negative crest voltage of pulsating wave.
Yet existing since the Oscillograph measurement scheme of high-voltage pulse unit, filtering railway shift frequency undesired signal causes the inaccurate problem of measurement data occurring when the amplitude size of measuring high-voltage pulse signal and pulsating wave occurrence frequency effectively; In addition, above-mentionedly the mode that 3 Oscillographs measure is set also exists cost high, the defective of inconvenience is installed.
The utility model content
In view of this, the utility model provides a kind of high-voltage pulse acquisition module and high-voltage pulse track circuit of high-voltage pulse track circuit, realizing effective filtering shift frequency undesired signal, and realizes the technique effect that low-cost and easy-to is installed.
A kind of high-voltage pulse acquisition module comprises: the controller that the above-mentioned unit work of high impedance sampling unit, photoelectricity isolated location, modulus sampling unit, digital compensation filter unit, pulse detecting unit and control and signal data calculate, wherein:
Input end input pulse signal, wave head signal and the wave rear signal of described high impedance sampling unit;
The output terminal of described high impedance sampling unit connects the input end of described photoelectricity isolated location;
The output terminal of described photoelectricity isolated location be connected the input end of modulus sampling unit and connect;
The output terminal of described modulus sampling unit be connected the input end of digital compensation filter unit and connect;
Described pulse detecting unit receives the output of described digital compensation filter unit.
Preferably, described compensation filter unit comprises:
The shift frequency interference filtering unit that is used for the described pulse signal of filtering.
Preferably, described controller specifically is: the combination of DSP control module and MCU control module.
Can find out from above-mentioned technical scheme, high-voltage pulse acquisition module among the utility model embodiment adopts high impedance sampling and isolation method, and cooperation digital compensation filtering, effectively the frequency-shift signaling in the filtering pulse signal disturbs, make things convenient for the succeeding impulse measurements and calculations, overcome Oscillograph measurement scheme in the prior art, filtering railway shift frequency undesired signal effectively, cause when the positive negative peak of measuring high-voltage pulse signal and frequency, the inaccurate problem of measurement data appears, and the unit integrated molding in this module has improved the expensive of existing multichannel Oscillograph equipment investment and inconvenient problem has been installed.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the disclosed a kind of high-voltage pulse acquisition module of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of high-voltage pulse acquisition module and high-voltage pulse track circuit of high-voltage pulse track circuit, realizing effective filtering shift frequency undesired signal, and realizes the technique effect that low-cost and easy-to is installed.
Fig. 1 shows a kind of high-voltage pulse acquisition module, comprising:
High impedance sampling unit 1, photoelectricity isolated location 2, modulus sampling unit 3, digital compensation filter unit 4, pulse detecting unit 5 and control the controller 6 of above-mentioned unit work, wherein:
Input end input pulse signal, wave head signal and the wave rear signal of described high impedance sampling unit 1;
The output terminal of described high impedance sampling unit 1 connects the input end of described photoelectricity isolated location 2;
The output terminal of described photoelectricity isolated location 2 be connected the input end of modulus sampling unit 3 and connect;
The output terminal of described modulus sampling unit 3 be connected the input end of digital compensation filter unit 4 and connect;
Described pulse detecting unit 5 receives the output of described digital compensation filter unit 4.
Can from figure, see, described digital compensation filter unit 4 comprises: be used for the shift frequency interference filtering unit of the described pulse signal of filtering, the result of the output of this unit can with to the compensation filter result of described wave head signal and the wave rear signal input as described pulse detecting unit.
The high impedance sampling unit is set in this acquisition module has reduced the interference that described acquisition module causes the high-voltage pulse track circuit system;
Described photoelectricity isolated location has effectively been isolated described acquisition module and undesired signal has been brought into described high-voltage pulse track circuit system when collection signal;
Described modulus acquisition chip can preferred 16 chips collection signal more thick and fast, and carry out analog to digital conversion, thereby guarantee the accuracy of detection of succeeding impulse detecting unit;
Described controller can adopt the RMS rms algorithm, obtains the effective value of wave head signal and wave rear signal according to pulsed frequency integration complete cycle; And described control can be calculated according to the Output rusults of described pulse detecting unit pulsating wave occurrence frequency, amplitude size, pulse waveform curve.
As preferably, described unit adopts bus type network construction form and bus CAN2.0 data transfer mode, possesses that networking is convenient, high transfer rate, advantage that anti-interference is high.
In the present embodiment, described controller specifically is: the combination of DSP control module and MCU control module.Described MCU unit and described DSP unit speed up processing, and can need to carry out respectively program embedding, reasonable distribution implementation according to practical application.
In sum:
High-voltage pulse acquisition module among the utility model embodiment adopts high impedance sampling and isolation method, and cooperation digital compensation filtering, effectively the frequency-shift signaling in the filtering pulse signal disturbs, make things convenient for the succeeding impulse measurements and calculations, overcome Oscillograph measurement scheme in the prior art, filtering railway shift frequency undesired signal effectively, cause when the positive negative peak of measuring high-voltage pulse signal and frequency, the inaccurate problem of measurement data appears, and the unit integrated molding in this module has improved the expensive of existing multichannel Oscillograph equipment investment and inconvenient problem has been installed.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. high-voltage pulse acquisition module, it is characterized in that, comprise: the controller that the above-mentioned unit work of high impedance sampling unit, photoelectricity isolated location, modulus sampling unit, digital compensation filter unit, pulse detecting unit and control and signal data calculate, wherein:
Input end input pulse signal, wave head signal and the wave rear signal of described high impedance sampling unit;
The output terminal of described high impedance sampling unit connects the input end of described photoelectricity isolated location;
The output terminal of described photoelectricity isolated location be connected the input end of modulus sampling unit and connect;
The output terminal of described modulus sampling unit be connected the input end of digital compensation filter unit and connect;
Described pulse detecting unit receives the output of described digital compensation filter unit.
2. high-voltage pulse acquisition module as claimed in claim 1 is characterized in that, described compensation filter unit comprises:
The shift frequency interference filtering unit that is used for the described pulse signal of filtering.
3. high-voltage pulse acquisition module as claimed in claim 1 is characterized in that, described controller specifically is: the combination of DSP control module and MCU control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220354769 CN202870187U (en) | 2012-07-20 | 2012-07-20 | High-voltage pulse acquisition module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220354769 CN202870187U (en) | 2012-07-20 | 2012-07-20 | High-voltage pulse acquisition module |
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| Publication Number | Publication Date |
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| CN202870187U true CN202870187U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220354769 Expired - Lifetime CN202870187U (en) | 2012-07-20 | 2012-07-20 | High-voltage pulse acquisition module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558794A (en) * | 2013-11-21 | 2014-02-05 | 北京全路通信信号研究设计院有限公司 | Branching collector |
| CN103645386A (en) * | 2013-12-20 | 2014-03-19 | 天津鹏安数迅科技有限公司 | High-voltage electric pulse detection device |
-
2012
- 2012-07-20 CN CN 201220354769 patent/CN202870187U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558794A (en) * | 2013-11-21 | 2014-02-05 | 北京全路通信信号研究设计院有限公司 | Branching collector |
| CN103558794B (en) * | 2013-11-21 | 2017-02-22 | 北京全路通信信号研究设计院集团有限公司 | Branching collector |
| CN103645386A (en) * | 2013-12-20 | 2014-03-19 | 天津鹏安数迅科技有限公司 | High-voltage electric pulse detection device |
| CN103645386B (en) * | 2013-12-20 | 2016-08-17 | 天津鹏安数迅科技有限公司 | High-voltage electric pulse detection device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |