CN101581741A - Device for measuring railway frequency-shift signal and application method thereof - Google Patents
Device for measuring railway frequency-shift signal and application method thereof Download PDFInfo
- Publication number
- CN101581741A CN101581741A CNA2008100372954A CN200810037295A CN101581741A CN 101581741 A CN101581741 A CN 101581741A CN A2008100372954 A CNA2008100372954 A CN A2008100372954A CN 200810037295 A CN200810037295 A CN 200810037295A CN 101581741 A CN101581741 A CN 101581741A
- Authority
- CN
- China
- Prior art keywords
- frequency
- module
- signal
- voltage
- shift
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
The invention relates to a device for measuring a railway frequency-shift signal, which comprises a voltage transformator module with a protecting circuit, a voltage signal conditioning module, a signal processing module, a communication output module and a power supply module, wherein the voltage transformator module with the protecting circuit is connected with the voltage signal conditioning module, and the voltage signal conditioning module, the signal processing module and the communication output module are respectively connected with the power supply module. Compared with the prior art, the invention realizes the signal measurement and the remote data transmission on site, greatly improves the measuring accuracy and reduces the workload of field wiring.
Description
Technical field
The present invention relates to the high-acruracy survey and the shift frequency digital signal processing of simulating signal, particularly a kind of device and application process thereof that is used for measuring railway frequency-shift signal.
Background technology
In order to satisfy the requirement that the railway microcomputer monitoring system detects frequency-shift signaling, our company has developed a kind of device and application process thereof that is used for measuring railway frequency-shift signal, this technology has realized on-the-spot signal measurement and remote data transmission, improve the accuracy of measuring greatly, reduced the workload of field wiring.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of device that is used for measuring railway frequency-shift signal and application process thereof that has improved the accuracy of measuring greatly for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of device that is used for measuring railway frequency-shift signal; it is characterized in that; this device comprises voltage transformer (VT) module, voltage signal conditioning module, signal processing module, communication output module, the power module of being with holding circuit; the voltage transformer (VT) module of described band holding circuit is connected with the voltage signal conditioning module, and described voltage signal conditioning module, signal processing module, communication output module are connected with power module respectively.
A kind of application process that is used for the device of measuring railway frequency-shift signal is characterized in that, this method may further comprise the steps:
(1) the dominant frequency frequency of the frequency-shift signaling of surveying is set by thumb-acting switch;
(2) the voltage transformer (VT) collection in worksite voltage frequency-shift signaling of band holding circuit;
(3) signal of gathering is imported high speed digital signal processor through after high-precision A/D conversion, calculates offset frequency up and down, centre frequency, the low frequency of the dominant frequency signal of this frequency-shift signaling, the amplitude of amplitude low frequency signal;
(4) result of calculation outputs to the industrial computer in a distant place by 485 buses.
Compared with prior art, the present invention has realized on-the-spot signal measurement and remote data transmission, has improved the accuracy of measuring greatly, has reduced the workload of field wiring.
Description of drawings
Fig. 1 is a kind of structural representation that is used for the device of measuring railway frequency-shift signal of the present invention;
Fig. 2 is the process flow diagram of the application process of a kind of device that is used for measuring railway frequency-shift signal of the present invention.
Embodiment
As shown in Figure 1, a kind of device that is used for measuring railway frequency-shift signal of the present invention mainly comprises voltage transformer (VT) module 1, voltage signal conditioning module 2, signal processing module 3, communication output module 4, the power module 5 of being with holding circuit.This device has been realized major-minor voltage, the current amplitude measurement frequently of railway frequency-shift signal, lower side frequency on the dominant frequency voltage, centre frequency, the measurement of low frequency.This module isolate to be gathered the voltage frequency-shift signaling by the voltage transformer (VT) of band holding circuit, has not only realized the high-precision signal collection but also has guaranteed the security of on-site signal.The isolation signals that collects is passed through and is passed through offset frequency up and down, centre frequency, the low frequency that special frequency-shift signaling software algorithm calculates the dominant frequency signal of this frequency-shift signaling by high speed digital signal processor after high-precision A/D module is transformed into digital quantity, the amplitude of amplitude low frequency signal, and result of calculation is passed through 485 buses export.
As shown in Figure 2, device built-in system initialization; The circulation of master routine inquiry zone bit; Whether detect the A/D conversion finishes; If, then do not return the circulation of master routine inquiry zone bit; If yes, then move the bandpass filtering calculation procedure, then move frequency-shift signaling amplitude-frequency calculation procedure; Whether have data, if not, then return the circulation of master routine inquiry zone bit if detecting serial ports; If yes, then move the serial data transmitting/receiving program.
Claims (2)
1. device that is used for measuring railway frequency-shift signal; it is characterized in that; this device comprises voltage transformer (VT) module, voltage signal conditioning module, signal processing module, communication output module, the power module of being with holding circuit; the voltage transformer (VT) module of described band holding circuit is connected with the voltage signal conditioning module, and described voltage signal conditioning module, signal processing module, communication output module are connected with power module respectively.
2. an application process that is used for the device of measuring railway frequency-shift signal is characterized in that, this method may further comprise the steps:
(1) the dominant frequency frequency of the frequency-shift signaling of surveying is set by thumb-acting switch;
(2) the voltage transformer (VT) collection in worksite voltage frequency-shift signaling of band holding circuit;
(3) signal of gathering is imported high speed digital signal processor through after high-precision A/D conversion, calculates offset frequency up and down, centre frequency, the low frequency of the dominant frequency signal of this frequency-shift signaling, the amplitude of amplitude low frequency signal;
(4) result of calculation outputs to the industrial computer in a distant place by 485 buses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100372954A CN101581741A (en) | 2008-05-12 | 2008-05-12 | Device for measuring railway frequency-shift signal and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100372954A CN101581741A (en) | 2008-05-12 | 2008-05-12 | Device for measuring railway frequency-shift signal and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101581741A true CN101581741A (en) | 2009-11-18 |
Family
ID=41363979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100372954A Pending CN101581741A (en) | 2008-05-12 | 2008-05-12 | Device for measuring railway frequency-shift signal and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101581741A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590613A (en) * | 2012-03-14 | 2012-07-18 | 上海聚星仪器有限公司 | Method and device for measuring arrival time difference of radio-frequency signal |
| CN108267633A (en) * | 2016-12-30 | 2018-07-10 | 河南辉煌信通软件有限公司 | Track frequency-shifting signal detecting system based on HMC1001 magnetoresistive sensors |
-
2008
- 2008-05-12 CN CNA2008100372954A patent/CN101581741A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590613A (en) * | 2012-03-14 | 2012-07-18 | 上海聚星仪器有限公司 | Method and device for measuring arrival time difference of radio-frequency signal |
| CN102590613B (en) * | 2012-03-14 | 2014-03-12 | 上海聚星仪器有限公司 | Method and device for measuring arrival time difference of radio-frequency signal |
| CN108267633A (en) * | 2016-12-30 | 2018-07-10 | 河南辉煌信通软件有限公司 | Track frequency-shifting signal detecting system based on HMC1001 magnetoresistive sensors |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201188051Y (en) | Positioning apparatus for detecting acoustic wave leakage | |
| CN102033190A (en) | Traveling wave fault location method for transmission line based on electronic transformer | |
| CN201750226U (en) | Remote detecting system of substation | |
| CN103389447A (en) | Non-contact ultraviolet pulse discharge monitoring device | |
| CN109001997A (en) | A kind of anti-tampering environment information acquisition system | |
| CN105445535A (en) | Digital current transducer and detection device | |
| CN203811737U (en) | Direct-current electric-leakage monitoring and warning device | |
| CN107271022A (en) | A kind of transformer vibration noise Integrated Measurement System | |
| CN103712071A (en) | Nuclear magnetic resonance petroleum transmission pipeline leakage hidden danger detecting instrument and detecting method | |
| CN211875702U (en) | Pipeline leakage detector and detection system | |
| CN103629535A (en) | Distributed leakage detection positioning system of regional pipe network | |
| CN101581741A (en) | Device for measuring railway frequency-shift signal and application method thereof | |
| CN203658521U (en) | Mobile insulation supervision instrument of transformer station DC system | |
| CN104158606B (en) | The concentrator communication module method of testing that a kind of automatic calibration system is special | |
| CN207752621U (en) | A kind of data collection and transfering system based on LORA | |
| CN105890654A (en) | Environmental data acquisition device | |
| RU2011137661A (en) | CABLE CONNECTIONS MONITORING SYSTEM USING A REFLECTOMETER AND NETWORK DEVICE | |
| CN202916243U (en) | Bus duct operating condition real-time wireless monitoring system | |
| CN202472900U (en) | Wireless flow velocity measuring instrument | |
| CN201845066U (en) | Transmission line traveling wave malfunction distance measuring apparatus for intelligent transformer substation | |
| CN204989299U (en) | Overvoltage monitor | |
| CN211576487U (en) | Water leakage detection device | |
| CN202974355U (en) | Ultrasonic flow measurement device | |
| CN103425109B (en) | The method of the pseudo-large number of mine supervision system filtering | |
| CN203376051U (en) | Power cable operation vibration monitoring system based on acceleration sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091118 |