CN103809054A - Railway signal waveform recording/display system based on Android platform - Google Patents

Railway signal waveform recording/display system based on Android platform Download PDF

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CN103809054A
CN103809054A CN201410035783.7A CN201410035783A CN103809054A CN 103809054 A CN103809054 A CN 103809054A CN 201410035783 A CN201410035783 A CN 201410035783A CN 103809054 A CN103809054 A CN 103809054A
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algorithm module
display
waveform
frequency
data
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CN103809054B (en
Inventor
周波
庹云凤
李�权
李枫
李桂月
刘涛
牛意坚
王强
任翔
薛保建
吴江涛
张洲初
王川
赵兵
罗翔
罗辉
张玲雨
凌玉珊
张景福
何政
雷临平
蔡雨厚
张颖慧
陈耀
林剑航
包英丹
刘丹
王媛
陈冰
姜鲁瑜
张骊
赵烜锃
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Shenzhen Changlong Railway Electronic Engineering Co Ltd
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Shenzhen Changlong Railway Electronic Engineering Co Ltd
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Abstract

The invention discloses a railway signal waveform recording/display system based on Android platform. The railway signal waveform recording/display system comprises a UART (Universal Asynchronous Receiver /Transmitter) data frame reorganization algorithm module, an original waveform display algorithm module, a waveform amplitude display algorithm module and a waveform frequency display algorithm module; due to the adoption of a portable detection device installed with the system, signals in a fault area ca be detected quickly, and looked up and diagnosed, and signal failure can be analyzed and processed conveniently and quickly.

Description

A kind of railway signal waveform recording display system based on Android platform
Technical field
The present invention relates to a kind of railway signaling detection technique, particularly a kind of railway signal waveform recording display system based on Android intelligent platform.
Background technology
In recent years, along with the enforcement of six phase of railway speed acceleration project, particularly Beijing-Tianjin inter-city, Beijing-Shanghai express railway, the wide high ferro in capital open operation, the a large amount of upper tracks of signalling arrangement with high content of technology such as microcomputer interlocking, ZPW-2000 and acclerating road switch use, due to the raising of train speed, often there is track switch moment to lose expression, the track circuit agnogenio fault such as red band or voltage curve fluctuation in short-term.This type of fault is because time of origin is shorter, and maintainer does not also reach the spot, and fault is just recovered naturally.This type of fault analysis and handling is very difficult, is the most unmanageable kind in signal fault, often can not find true cause, causes fault to repeat to occur, and brings very large interference to transportation.
Summary of the invention
The invention provides a kind of railway signal wave shape display system based on Android platform, can on lightweight pick-up unit, show easily the signal waveform detecting, be convenient to quick diagnosis, deal with problems.
The present invention realizes by following technological means:
A railway signal wave shape display system based on Android platform, comprises UART Frame reassembly algorithm module, original waveform display algorithm module, waveforms amplitude display algorithm module, waveform frequency display algorithm module; Described UART Frame reassembly algorithm module is carried out the UART data that receive the restructuring of special algorithm, passes to original waveform display algorithm module, waveforms amplitude display algorithm module and waveform frequency display algorithm module; Original waveform display algorithm module is carried out the recombination data frame receiving the processing of special algorithm; Waveforms amplitude display algorithm module is carried out the recombination data frame receiving the processing of special algorithm, calculates the amplitude of the analog quantitys such as track circuit, goat, teleseme voltage, electric current; Waveform frequency display algorithm module is carried out the recombination data frame receiving the processing of frequency algorithm, calculates the frequency of track circuit, goat, teleseme voltage, current analog amount; Form with waveform on display screen shows the above-mentioned data through special algorithm processing.
Further, described special algorithm is LONUFFT algorithm, and signal spectrum is moved near carrier frequency frequency; The signal of moving is carried out to low-pass filtering; Owe sampling to filtered signal; The data of owing sampling are carried out to frequency spectrum calculating, calculate 2 maximum side lobe levels, difference is the low frequency of signal.
Finally, also comprise TF card, every road signal saves as a file on TF card, and the data of collection are organized by piece, and every blocks of data is 1 second raw data gathering, and preserves the parameter of each passage and the time of collection in every blocks of data.
In the time of the not clear fault of signalling arrangement occurrence cause or microcomputer monitoring curve abnormality, by place this device near track related electric equipment measuring point, real-time testing needs analog quantity numerical value and the on-off state of the signalling arrangement of monitoring record, by being mounted with the lightweight pick-up unit of native system, can detect the signal in abnormal signal district efficiently and consult in real time, diagnose, fast and easy analyzing and processing signal fault.
Accompanying drawing explanation
Fig. 1 is the implementing procedure schematic diagram of native system.
Embodiment
Below with reference to accompanying drawing, implementation process of the present invention is described in detail.
The railway signal wave shape display system based on Android platform as shown in Figure 1, comprises UART Frame reassembly algorithm module, original waveform display algorithm module, waveforms amplitude display algorithm module, waveform frequency display algorithm module.
Obtain after detection data when being equipped with the railway signal pick-up unit of native system, UART Frame reassembly algorithm module is carried out the UART data that receive the restructuring of special algorithm, facilitates processing and the analysis of subsequent algorithm module.
Original waveform display algorithm module is carried out the recombination data frame receiving the processing of special algorithm, and then in the LCD display shown in Fig. 1, the form with waveform shows data.
Waveforms amplitude display algorithm module is carried out the recombination data frame receiving the processing of special algorithm, the amplitude that calculates the analog quantitys such as track circuit, goat, teleseme voltage, electric current, then in the LCD display shown in Fig. 1, the form with waveform shows data.
Waveform frequency display algorithm module is carried out the recombination data frame receiving the processing of frequency algorithm, the frequency that calculates the analog quantitys such as track circuit, goat, teleseme voltage, electric current, then in the LCD display shown in Fig. 1, the form with waveform shows data.
This algorithm adopts LONUFFT algorithm, and this algorithm is the optimization to the ZFFT algorithm of increasing income, and algorithm idiographic flow is: first signal spectrum is moved, moved near carrier frequency frequency, then the signal of moving is carried out to low-pass filtering; Then owe sampling to filtered signal again; Finally the data of owing sampling are carried out to frequency spectrum calculating, calculate 2 maximum side lobe levels, difference is the low frequency of signal.
Also comprise TF card, every road signal saves as a file on TF card, and file is called m0c0.dat, m0c1.dat, and m0c2.dat, m1c0.dat, m1c1.dat, m1c2.dat, m2c0.dat, m2c1.dat, m2c2.dat is 9 files altogether.The data of collection are organized by piece, and every blocks of data is exactly the raw data of the collection of 1 second.In every blocks of data, also preserve the parameter of each passage and the time of collection, the regression analysis of data after being convenient to.
Native system in use, be 576000 to being equipped with that the Android platform pick-up unit of native system opens serial ports and serial ports baud rate is set, pick-up unit is according to agreement receiving data frames, then data are tested, receive 1 second image data, then calculate signal frequency, amplitude, carrier frequency low-frequency parameter, in LCD display, data waveform is consulted and problem diagnosis.
The employing Android system that is equipped with native system has the measurement function to analog quantitys such as track circuit, goat, teleseme voltage, electric currents as the pick-up unit of operating system, gives full play to the performance of light and fast, fast problem is detected, is diagnosed.
The scheme that the present invention is carried out to simple change gained does not enumerate at this within being included in the scope of protection of the invention.

Claims (3)

1. the railway signal waveform recording display system based on Android platform, is characterized in that: comprise UART Frame reassembly algorithm module, original waveform display algorithm module, waveforms amplitude display algorithm module, waveform frequency display algorithm module; Described UART Frame reassembly algorithm module is carried out the UART data that receive the restructuring of special algorithm, passes to original waveform display algorithm module, waveforms amplitude display algorithm module and waveform frequency display algorithm module; Original waveform display algorithm module is carried out the recombination data frame receiving the processing of special algorithm; Waveforms amplitude display algorithm module is carried out the recombination data frame receiving the processing of special algorithm, calculates the amplitude of track circuit, goat, teleseme voltage, current analog amount; Waveform frequency display algorithm module is carried out the recombination data frame receiving the processing of frequency algorithm, calculates the frequency of track circuit, goat, teleseme voltage, current analog amount; Form with waveform on display screen shows the above-mentioned data through special algorithm processing.
2. the railway signal waveform recording display system based on Android platform according to claim 1, is characterized in that, described special algorithm is LONUFFT algorithm, carries out by following steps:
S1, moves signal spectrum near carrier frequency frequency;
S2, carries out low-pass filtering to the signal of moving;
S3, owes sampling to filtered signal;
S4, carries out frequency spectrum calculating to the data of owing sampling, calculates 2 maximum side lobe levels, and difference is the low frequency of signal.
3. the railway signal waveform recording display system based on Android platform according to claim 1, it is characterized in that, also comprise TF card, every road signal saves as a file on TF card, the data of collection are organized by piece, every blocks of data is 1 second raw data gathering, and preserves the parameter of each passage and the time of collection in every blocks of data.
CN201410035783.7A 2014-01-24 2014-01-24 A kind of railway signal waveform recording display system based on Android platform Active CN103809054B (en)

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Publication number Priority date Publication date Assignee Title
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