CN202583342U - Equipment state and electric energy-quality monitoring system for high speed train - Google Patents
Equipment state and electric energy-quality monitoring system for high speed train Download PDFInfo
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- CN202583342U CN202583342U CN 201220071855 CN201220071855U CN202583342U CN 202583342 U CN202583342 U CN 202583342U CN 201220071855 CN201220071855 CN 201220071855 CN 201220071855 U CN201220071855 U CN 201220071855U CN 202583342 U CN202583342 U CN 202583342U
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Abstract
The utility model discloses an equipment state and electric-energy quality monitoring system for a high speed train. The monitoring system comprises a wireless acquisition system, an electric-energy quality monitoring system and a data center, wherein wireless acquisition subsystems are in wireless connection with the electric-energy quality monitoring system, and the electric-energy quality monitoring system is in wireless connection with the data center. According to the utility model, it is realized that the electric-energy quality can be monitored with precise positioning and that the health states of distributed equipment can be also monitored with precise positioning, which is especially suitable for security monitoring and early warning of high-speed trains and other traction power supply systems.
Description
[technical field]
The utility model relates to the quality of power supply and failure prediction technical field, relates in particular to the monitoring system of a kind of high-speed trains state and the quality of power supply.
[background technology] railway dragging electric power system is high ferro " heart ", for high ferro and EMUs provide power.In recent years, it is more frequent that the high ferro accident takes place, and can't brake, run out of steam like train, the severe patient accident that causes casualties.These accidents further prove: the safe operation of tractive power supply system, the reliability of key equipment directly influence the safe operation of train.
Because the singularity of high ferro, train and electric power system; The voltage output of existing tractive power supply system; The electric system of being transported to that oneself is arranged again; And traction power supply voltage does not stop to switch, load is in high-speed motion state all the time, and the ripe at present electric energy quality monitoring system overwhelming majority can't provide the power quality data that contains the accurate space time information of monitored point to static (non-motion state) load.
The patent of at present having announced about the train status study on monitoring concentrates on train operation environment (like one Chinese patent application number 03257809.1 " the on-the-spot measurement mechanism that detects the train air pressure ") or single relatively parts running status (like one Chinese patent application number 200320124120 " a kind of intelligent monitoring devices that are used for Train Wheel to running status ") mostly, and it is few to carry out Study of Monitoring for train key equipment health status.There is partial monopoly to relate to failure message and handles (one Chinese patent application number 200710111200 " filter method of train fault misdescription and systems "; One Chinese patent application number 201010563179 " a kind of subway train trouble-shooter and methods thereof ") based on neural network; But its fault status information is directly to read mode from relevant each equipment to obtain, and is not specifically related to how independently gather train apparatus state (comprising fault) information acquisition and feature extracting methods.
Based on this; We have proposed from the quality of power supply and two aspects of equipment health status bullet train to be carried out the comprehensive safety early warning simultaneously; Primary study high-speed trains state and electric energy quality monitoring system, wherein the key equipment emphasis comprises power supply-distribution system equipment, signal controlling and guard system equipment, electricity (air) brake system equipment etc.
[summary of the invention]
The technical matters that the utility model will solve is the deficiency that overcomes prior art, and a kind of high-speed trains state and electric energy quality monitoring system are provided.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is that the monitoring system of a kind of high-speed trains state and the quality of power supply comprises wireless acquisition system, electric energy quality monitoring system, data center; The wireless collection subsystem is connected with electric energy quality monitoring system; Electric energy quality monitoring system is connected with data center.
As preferably, wireless acquisition system comprises that a plurality of distributions are installed in the wireless collection child node on the high-speed trains; The wireless collection child node comprises multi-parameters sampling module and wireless transport module; Wireless transport module is connected with the multi-parameters sampling module.
As preferably, wireless transport module adopts the ZIGBEE wireless transmission protocol.
As preferably, the multi-parameters sampling module adopts the acquisition mode of non-invasion formula.
As preferably, electric energy quality monitoring system comprises data acquisition module, ARM main control module, frequency-tracking module and radio communication and locating module; Data acquisition module comprises voltage sensor, current sensor, pre-process circuit and A/D sample circuit; Pre-process circuit comprises AGC from gaining programmable amplifying circuit and Butterworth filtering circuit, and the A/D sample circuit is provided by peripheral hardware in the sheet of ARM main control module; The ARM main control module uses the Cortex-M3 embedded controller; The frequency-tracking module comprises comparator circuit and based on the digital frequency multiplier circuit of FPGA; Radio communication and locating module comprise GPS positioning unit, GPRS wireless transmission unit, gsm wireless transmission unit and ZIGBEE wireless module.
As preferably, voltage sensor output is connected with pre-process circuit, and current sensor is exported and is connected with pre-process circuit; The output of pre-process circuit is connected with the A/D sample circuit; The comparator circuit of frequency-tracking module is connected with a certain phase voltage pre-process circuit output terminal; The ARM main control module is connected with the digital frequency multiplier circuit output of frequency-tracking module through interrupting the I/O port; GPS positioning unit in radio communication and the locating module, GPRS wireless transmission unit, gsm wireless transmission unit are connected with the serial line interface of ARM main control module respectively.
As preferably, data center comprises client terminal; Client terminal comprises wireless communication module, and wireless communication module comprises GSM unit and ZIGBEE wireless module.
As preferably, the ZIGBEE module wireless connections in the wireless transport module in the wireless acquisition system and the radio communication of electric energy quality monitoring system and the locating module.
As preferably, the wireless communication module of the radio communication of electric energy quality monitoring system and locating module and data center adopts GPRS mode or GSM or the wireless connections of ZIGBEE agreement.
The beneficial effect of the utility model is:
System is based on ARM and FPGA real-time technique and adopt frequency-tracking method synchronous acquisition electric power system voltage, current data, combination AGC from modules such as the programme control circuts that gains; Improved the frequency analysis precision; Wherein power quality data comprises precise time, the spatial information that adopts GPS to obtain, above-mentioned measure help the dispatching center to power grid security early warning make more in time, judge accurately.
Adopt non-invasion mode to gather key equipment and comprise the working state signal of sending out electric power supply system equipment, signal controlling and guard system equipment, railroad traction equipment etc.; Its advantage is: need not open existing various kinds of equipment, not change device interior electrical interconnection relation, avoid bringing new potential faults by newly-increased monitoring system to original system.
Adopt wireless distributed collecting device status signal, its advantage has been to avoid to take the shortcoming of the integrated transmission line that causes of wired mode long (far away at a distance of hundreds of rice like the headstock tailstock), poor anti jamming capability, difficult installation.
System adopts and monitors the quality of power supply and key equipment state data simultaneously, considers to carry out simultaneously the safe early warning detection from bullet train power source and two aspects of train key equipment, has improved early warning system property, promptness and the responding ability of safety pre-warning system.
[description of drawings]
Fig. 1 is the overall construction drawing of the utility model high-speed trains state and electric energy quality monitoring system embodiment.
Fig. 2 is the wireless collection child node structural drawing of the utility model high-speed trains state and electric energy quality monitoring system embodiment.
Fig. 3 is the electric energy quality monitoring system structural drawing of the utility model high-speed trains state and electric energy quality monitoring system embodiment.
Fig. 4 is the ARM main control module block diagram of the utility model high-speed trains state and electric energy quality monitoring system embodiment.
Fig. 5 is the frequency-tracking module principle block diagram of the utility model high-speed trains state and electric energy quality monitoring system embodiment.
[embodiment]
As shown in Figure 1, present embodiment is made up of wireless acquisition system, electric energy quality monitoring system and data center.Wherein wireless acquisition system comprises a plurality of wireless collection child nodes, is distributed on train different spaces (like the pulpit of headstock, the tailstock) equipment and the critical component; Electric energy quality monitoring system or install near total power supply chamber of train as far as possible; Data center comprises client terminal, Network Interface Unit, server, and wherein each client terminal is installed in each pulpit or the branch control room along rail, and server is installed in the total activation center, relies on Network Interface Unit interconnected between client terminal and the server.
One, wireless acquisition system
Like Fig. 1, shown in Figure 2, wireless acquisition system comprises that a plurality of distributions are installed near the wireless collection child node in high-speed trains outside, and the wireless collection child node comprises multi-parameters sampling module and wireless transport module.The multi-parameters sampling module comprises sensor assembly; The sensor kind comprises voltage, current sensor, temperature sensor, noise transducer etc.; That adopts is non-invasion formula; Promptly be installed in the outside of equipment, be installed in power access end like voltage-current sensor, temperature sensor, noise transducer are installed in the corresponding sensitivity volume of device external.
Wireless transport module adopts the ZIGBEE host-host protocol, and long-distance transmissions is supported in requirement, and as selecting the CC2530 of TI company, this chip internal contains A/D on CPU nuclear and the sheet, can realize controlling, gather, transmit multi-functional.
The wireless acquisition system workflow is following:
Step 11: the initialization of wireless collection subsystem mainly comprises ZIGBEE initialization, serial ports initialization;
Step 12: the operation acquisition module, mainly gather information such as voltage, electric current, temperature, noise;
Step 13: service data is handled, analysis module;
Step 14: packing data sends to electric energy quality monitoring system;
The data type of the train apparatus state of wherein, gathering in the step 12 is following:
(1) voltage and current parameter
(1) effective value: fundamental voltage (electric current) effective value; Voltage (electric current) effective value;
(2) harmonic content: in the 2-50 subharmonic current value the highest preceding 10; Electric current resultant distortion rate;
(3) frequency: fundamental voltage frequency;
(4) phase place: the phase differential between wave voltage peak value and the current peak weekly;
(5) power: rated power, instantaneous power, phasor power factor.
(2) temperature parameter
Mean value, temperature maximal value, rate of temperature change, environment temperature short-time average value, equipment nominal operation temperature value when device temperature short-time average value, temperature length.
(3) vibration noise parameter
Mean value, noise strength maximum, noise intensity rate of change when noise intensity short-time average value, noise intensity length.
(4) numerical value that exceeds standard
Instantaneous voltage exceed standard value and time, the instantaneous power of value and time, momentary current that exceed standard exceeds standard value and time, temperature exceeding standard value and time
Two, electric energy quality monitoring system
As shown in Figure 3, electric energy quality monitoring system comprises data acquisition module, ARM main control module, frequency-tracking module, radio communication and locating module, LCD LCD MODULE, keyboard and the memory expansion module of being made up of voltage sensor, current sensor, pre-process circuit, A/D sample circuit.
Pre-process circuit is made up of from gain program control amplification, LPF and level shifting circuit AGC.
(1) AGC is from gaining programmable amplifying circuit: consider that the signal voltage after power network current is through the current transformer conversion can be from the millivolt level to the volt level, so adopt the instrument amplifier as amplifier chip.Utilize the I/O mouth relay gate serial Feedback resistance of ARM main control module to realize that gear automaticallyes switch, after the least gain collection is put in employing earlier, 90% of maximal value and A/D full scale compared, and successive approximation method is selected shelves.
(2) anti-aliasing filter circuit: adopt 8 rank Butterworth type active low-pass filters, realize the precipitous filter effect of low phase distortion.
(3) level shifting circuit: the voltage range of A/D input is 0-3.0V on the primary processor ARM module sheet; And the signal of voltage, current sensor input is bipolar signal; So adopt i.e. 2 differential amplifier circuits that amplifier constitutes of level shifting circuit, the bipolar signal of front end output converted into the unipolar signal of corresponding level.
As shown in Figure 4, the A/D sample circuit is provided by primary processor ARM module.It is LM3S1138 that the ARM main control module is selected the chip model for use, and it is a embedded controller based on the Cortex-M3 kernel, and ADC has 10-bit precision 8 passage synchronized sampling functions in the sheet.According to the actual conditions (possibly be single phase power supply or heterogeneous) of the tractive power supply system of bullet train, select wherein 2-6 passage to be used for the collection of voltage, electric current.The native system sampling pattern is divided two kinds: timer sampling and external trigger sampling.Timing sampling is mainly used in system's preliminary survey, range switches, and timing sampling is by timer control on the ARM sheet; Adopt the external trigger sample mode to realize real-time synchronous acquisition, touch outer sampling outward by the frequency-tracking module controls to power network signal.
As shown in Figure 5, the frequency-tracking module is connected with the arbitrary road of pre-process circuit single-phase (A, B, C) voltage output signal.The frequency-tracking module is made up of comparer and digital frequency multiplier circuit; The numeral frequency multiplier circuit is based on homemade FPGA integrated circuit board and utilizes the VHDL language programming to realize; The integrated circuit board master chip is ACEX1K30QC-208FPGA; Employing method synchronizing cycle is carried out frequency multiplication, and adopts digital denoising pre-service to improve antijamming capability.It is the square-wave signal of same frequency that comparator circuit in the frequency-tracking module will be similar to sinusoidal wave single-phase voltage signal shaping, adopts the benchmark of high precision reference chip as comparer.Square-wave signal after the shaping is input on the seizure pin CAP1 of ARM main control module on the one hand, utilizes the capture function of LM3S1138, realizes real-time seizure and calculating to mains frequency, draws mains frequency; On the other hand as the input signal of digital frequency multiplier circuit;, digital frequency multiplication realizes 128 frequencys multiplication after locking mutually to electric signal; And output duty cycle is 1: 8 a pulse signal; This signal interrupts I/O port (PB4) with the external trigger of ARM main control module and is connected, and goes out to trigger sampling control signal as A/D, realizes the power network signal precise synchronization is sampled.
The ARM main control module utilizes Fast Fourier Transform (FFT) (FFT) algorithm that the discrete series of sampled signal is carried out spectrum analysis; And, calculate power quality parameters such as mains frequency, each harmonic content, active power and reactive power, power factor (PF), voltage fluctuation in real time through digital filtering, algorithm for error correction correction correlated results.
Radio communication and locating module comprise Zigbee module and QE-GPRS/GSM/GPS integrated module.The Zigbee module is responsible for communicating by letter with wireless acquisition system, is equivalent to the wireless host node in the wireless acquisition system, selects and the supporting transport module of wireless acquisition system, i.e. CC2530.The ARM main control module links through UART0/RS232/RS485 serial line interface and QE-GPRS/GSM/GPS integrated module, is responsible for communicating by letter with data center.GPS GPS, gsm wireless communication module, GPRS wireless communication module are contained in QE-GPRS/GSM/GPS integrated module inside.The QE-GPRS/GSM/GPS integrated module is selected the SIM300 chip of Siemens Company, and this chip is supported the AT instruction mode.
Human-machine interface module is connected with the ARM main control module, and human-machine interface module is shown by LCD and keyboard is formed.Keyboard is through information such as customer in response order control LCD liquid crystal display distribution ability quality analysis results.
Extend out the SD card interface circuit and be connected, realize internal memory expansion, realize storage mass data to the ARM main control module with the input/output end port (GPIO) of ARM main control module.
Whole electric energy quality monitoring system is that above-mentioned all parts are assembled together.
The workflow of above-mentioned electric energy quality monitoring system is following:
Step 21: the electric energy quality monitoring system initialization, comprise hardware adaptor initialization, crucial array initialization,
Step 22: read configuration parameter, operation quality of power supply collection and analysis module;
Step 23: read gps data, comprise time, latitude and longitude information;
Step 24: read wireless acquisition system data and analysis;
Step 25: show integrated information; Data compression, packing send to data center;
Step 26: wait for receiving data center's analysis result;
Step 27: if the result normally then is back to step 22, then report to the police unusually, and send to data center to warning message;
Step 28: wait for, receive the order of sounding all clear that data center beams back;
Step 29: receive the order of sounding all clear, return 21; Otherwise, return step 28.
Three, data center
As shown in Figure 1, data center is made up of client terminal, Network Interface Unit and server.Client terminal comprises wireless communication module and terminal computer, and wireless communication module comprises gsm wireless transmission unit, ZIGBEE wireless module; Network Interface Unit comprises fire wall, optical fiber switch, optical fiber; Server comprises main frame, DBM, application module, disk array.
Wireless communication module comprises gsm wireless transmission unit, ZIGBEE wireless module, and wherein ZIGBEE module and wireless acquisition system, electric energy quality monitoring system are selected same model ZIGBEE chip.
DBM in the server is responsible for functions such as data in real time is stored, called, statistics, chart demonstration, inquiry; Application module mainly comprises equipment working state analysis, equipment failure prediction, power grid security warning function; Disk array is used for the storage system mass historical data, and data type comprises two big types of data of device status data, the power quality data baseline results, analysis result, statistics etc. of each corresponding concrete parameter respectively.
The workflow of data center is following:
Step 31: system initialization comprises hardware adaptor initialization, crucial array initialization;
Step 32: receive data, unpack, store;
Step 33: set up database;
Step 34: Operational Data Analysis module;
Step 35:, then report to the police unusually as normally then returning 32;
Step 36: wait for client's order of sounding all clear;
Step 37: receive client's order of sounding all clear, send the instruction of sounding all clear and give electric energy quality monitoring system,
Return S31; Otherwise, return step 36.
Claims (9)
1. high-speed trains state and electric energy quality monitoring system is characterized in that, comprise wireless acquisition system, electric energy quality monitoring system, data center; Said wireless collection subsystem is connected with electric energy quality monitoring system; Said electric energy quality monitoring system is connected with data center.
2. high-speed trains state according to claim 1 and electric energy quality monitoring system is characterized in that, said wireless acquisition system comprises that a plurality of distributions are installed in the wireless collection child node on the high-speed trains; Said wireless collection child node comprises multi-parameters sampling module and wireless transport module; Said wireless transport module is connected with the multi-parameters sampling module.
3. high-speed trains state according to claim 2 and electric energy quality monitoring system is characterized in that, said wireless transport module adopts the ZIGBEE wireless transmission protocol.
4. high-speed trains state according to claim 3 and electric energy quality monitoring system is characterized in that said multi-parameters sampling module adopts the acquisition mode of non-invasion formula.
5. monitoring system according to claim 1 is characterized in that, said electric energy quality monitoring system comprises data acquisition module, ARM main control module, frequency-tracking module and radio communication and locating module; Said data acquisition module comprises voltage sensor, current sensor, pre-process circuit and A/D sample circuit; Said pre-process circuit comprises AGC from gaining programmable amplifying circuit and Butterworth filtering circuit, and the A/D sample circuit is provided by peripheral hardware in the sheet of ARM main control module; Said ARM main control module uses the Cortex-M3 embedded controller; Said frequency-tracking module comprises comparator circuit and based on the digital frequency multiplier circuit of FPGA; Said radio communication and locating module comprise GPS positioning unit, GPRS wireless transmission unit, gsm wireless transmission unit and ZIGBEE wireless module.
6. monitoring system according to claim 5 is characterized in that, said voltage sensor output is connected with pre-process circuit, and said current sensor output is connected with pre-process circuit; The output of said pre-process circuit is connected with the A/D sample circuit; The comparator circuit of frequency-tracking module is connected with a certain phase voltage pre-process circuit output terminal; Said ARM main control module is connected with the digital frequency multiplier circuit output of frequency-tracking module through interrupting the I/O port; GPS positioning unit in said radio communication and the locating module, GPRS wireless transmission unit, gsm wireless transmission unit are connected with the serial line interface of ARM main control module respectively.
7. monitoring system according to claim 1 is characterized in that said data center comprises client terminal; Said client terminal comprises wireless communication module, and said wireless communication module comprises GSM unit and ZIGBEE wireless module.
8. according to any one described monitoring system of claim 1-7, it is characterized in that the ZIGBEE module wireless connections in the wireless transport module in the said wireless acquisition system and the radio communication of electric energy quality monitoring system and the locating module.
9. according to any one described monitoring system of claim 1-7, it is characterized in that the wireless communication module of the radio communication of said electric energy quality monitoring system and locating module and data center adopts GPRS mode or GSM or the wireless connections of ZIGBEE agreement.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608452A (en) * | 2012-02-24 | 2012-07-25 | 安徽建筑工业学院 | High speed train equipment state and electric energy quality monitoring system and method |
| CN104569651A (en) * | 2014-11-24 | 2015-04-29 | 南车青岛四方机车车辆股份有限公司 | Higher harmonic emission test system for motor train unit |
| CN106161447A (en) * | 2016-07-18 | 2016-11-23 | 中国铁路总公司 | Passenger car servicing maintenance power supply on-line monitoring node apparatus and method for converting protocol |
| CN106526379A (en) * | 2016-11-21 | 2017-03-22 | 广西电网有限责任公司电力科学研究院 | Method for implementing power quality test analysis based on wireless sampling |
| CN106645938A (en) * | 2017-02-16 | 2017-05-10 | 中国科学院广州能源研究所 | Electric energy management system and method for urban rail transit |
| CN107102195A (en) * | 2017-04-26 | 2017-08-29 | 顺特电气设备有限公司 | The electrical quantity processing of intelligent transformer terminal and network transfer method |
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2012
- 2012-02-24 CN CN 201220071855 patent/CN202583342U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608452A (en) * | 2012-02-24 | 2012-07-25 | 安徽建筑工业学院 | High speed train equipment state and electric energy quality monitoring system and method |
| CN102608452B (en) * | 2012-02-24 | 2015-01-21 | 安徽建筑大学 | High speed train equipment state and electric energy quality monitoring system and method |
| CN104569651A (en) * | 2014-11-24 | 2015-04-29 | 南车青岛四方机车车辆股份有限公司 | Higher harmonic emission test system for motor train unit |
| CN104569651B (en) * | 2014-11-24 | 2017-04-05 | 中车青岛四方机车车辆股份有限公司 | EMUs higher hamonic wave launches test system |
| CN106161447A (en) * | 2016-07-18 | 2016-11-23 | 中国铁路总公司 | Passenger car servicing maintenance power supply on-line monitoring node apparatus and method for converting protocol |
| CN106526379A (en) * | 2016-11-21 | 2017-03-22 | 广西电网有限责任公司电力科学研究院 | Method for implementing power quality test analysis based on wireless sampling |
| CN106645938A (en) * | 2017-02-16 | 2017-05-10 | 中国科学院广州能源研究所 | Electric energy management system and method for urban rail transit |
| CN107102195A (en) * | 2017-04-26 | 2017-08-29 | 顺特电气设备有限公司 | The electrical quantity processing of intelligent transformer terminal and network transfer method |
| CN107102195B (en) * | 2017-04-26 | 2020-03-20 | 顺特电气设备有限公司 | Electric quantity processing and network transmission method of intelligent transformer terminal |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130224 |