CN202748640U - Portable noise-testing data acquisition system for wind power plant - Google Patents
Portable noise-testing data acquisition system for wind power plant Download PDFInfo
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- CN202748640U CN202748640U CN2012202191940U CN201220219194U CN202748640U CN 202748640 U CN202748640 U CN 202748640U CN 2012202191940 U CN2012202191940 U CN 2012202191940U CN 201220219194 U CN201220219194 U CN 201220219194U CN 202748640 U CN202748640 U CN 202748640U
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Abstract
The utility model discloses a portable noise-testing data acquisition system for a wind power plant, and relates to the field of wind power generation. The system comprises a filtering apparatus for low-pass filtering of an acoustic signal and a meteorologic signal; a meteorologic data acquisition apparatus connected with an output terminal of the filtering apparatus and used for collecting meteorologic data of the meteorologic signal after low-pass filtering; an acoustic data acquisition apparatus connected with the other output terminal of the filtering apparatus and used for collecting acoustic data of the acoustic signal after low-pass filtering; a control and data transmission apparatus connected with the filtering apparatus, the meteorologic data acquisition apparatus and the acoustic data acquisition apparatus and used for controlling the filtering apparatus, the meteorologic data acquisition apparatus and the acoustic data acquisition apparatus to perform corresponding operations and transmitting the collected meteorologic data and the collected acoustic data to the external. According to the utility model, the problem that the conventional data acquisition system is large in size and consumes manpower, material resources and financial resources to be moved in remote wind power plants is solved.
Description
Technical field
The utility model relates to wind power generation field, particularly a kind of portable wind power generating field noise testing data acquisition system (DAS).
Background technology
When normal operation, can the exert an influence noise of surrounding environment of wind energy turbine set, environmental administration is more and more strict to the noise size requirements that wind energy turbine set produces both at home and abroad, according to DL/T 1084-2008 (Noise Limits And Measurement Method Of Wind Power Plant 1084-2008, wind energy turbine set noise level limit and measuring method 1084-2008), the signal that needs to measure mainly contains two classes: acoustic signal and meteorologic signal.Data acquisition system (DAS) is transferred to acoustic signal and the meteorologic signal that will measure in the data acquisition computer in real time.
The data acquisition system (DAS) volume of prior art is larger.Because most of wind energy turbine set present position is remote, noise testing requires harshness, and the data acquisition system (DAS) volume is excessive, certainly will cause expending a large amount of human and material resources and financial resources in the process of carrying data acquisition system (DAS).
The utility model content
The purpose of this utility model is to provide a kind of portable wind power generating field noise testing data acquisition system (DAS), it is excessive to solve better available data acquisition system volume, the carrying problem of labor intensive, material resources and financial resources of getting up in the out-of-the-way wind-powered electricity generation place of offset in place.
According to an aspect of the present utility model, a kind of portable wind power generating field noise testing data acquisition system (DAS) is provided, described system comprises:
Respectively acoustic signal and meteorologic signal are carried out the filter of low-pass filtering;
The meteorological data collection device that connects an output terminal of described filter is used for the meteorologic signal through low-pass filtering is carried out meteorological data collection;
The acoustic data acquisition device that connects described another output terminal of filter is used for the acoustic signal through low-pass filtering is carried out acoustic data acquisition;
The control and the data link that connect respectively described filter, meteorological data collection device and acoustics data collector, be used for controlling described filter, meteorological data collection device and acoustics data collector and carry out corresponding operating, and the outside weather data and the acoustic data that have gathered of transmission.
Preferably, described control and data link comprise:
Connect respectively the control module of meteorological data collection device data output end and acoustics data collector data output end, the described weather data that has gathered and acoustic data are processed;
The buffer unit that connects described control module data output end is used for weather data and the acoustic data of control module output are carried out caching process;
The delivery unit that connects described buffer unit output terminal is used for sending weather data and acoustic data through caching process to outside host computer;
Wherein, described control module connects respectively the control port of described filter, meteorological data collection device, acoustic data acquisition device, buffer unit and delivery unit, is used for it is controlled.
Preferably, described meteorological data collection device is the middling speed analog to digital converter.
Preferably, described acoustic data acquisition device is high-speed AD converter.
Preferably, described control module also is used for the weather data that has gathered is processed generation minute signal.
Preferably, described control module also is used for the acoustic data that has gathered is processed generation A weighted sound pressure level data.
Preferably, described control module comprises the TMS320V5402 chip, and described buffer unit comprises the IDT72V2113 chip, and described delivery unit comprises the CY8C27443 chip.
Preferably,
Described filter comprises the CY8C29466 chip;
Described acoustic data acquisition device is specially the ADS5422 chip;
Described meteorological data collection device is specially the MAX195 chip.
Preferably, described acquisition system also comprises:
Connect respectively the supply unit of filter, supply unit, meteorological data collection device, acoustic data acquisition device, control and data link, be used to it that power supply is provided.
Preferably, described supply unit comprises the TPS79501 chip.
Compared with prior art, the beneficial effects of the utility model are: small volume, be convenient for carrying, especially in remote wind-powered electricity generation place carrying, traditional data acquisition system (DAS) of comparing is more time saving and energy saving.
Description of drawings
Fig. 1 is the application synoptic diagram of a kind of portable wind power generating field noise testing data acquisition system (DAS) of providing of the utility model embodiment;
Fig. 2 is the structural representation of a kind of portable wind power generating field noise testing data acquisition system (DAS) of providing of the utility model embodiment;
Fig. 3 is the workflow diagram of a kind of portable wind power generating field noise testing data acquisition system (DAS) of providing of the utility model embodiment;
Fig. 4 is a kind of portable wind power generating field noise testing data acquisition system (DAS) control module interrupt routine process flow diagram that the utility model provides;
Fig. 5 is that a kind of portable wind power generating field noise testing data acquisition system (DAS) control module that the utility model provides carries out the process flow diagram that the acoustic signal data are processed;
Fig. 6 is that a kind of portable wind power generating field noise testing data acquisition system (DAS) control module that the utility model provides carries out the process flow diagram that the meteorologic signal data are processed.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is elaborated, should be appreciated that following illustrated preferred embodiment only is used for description and interpretation the utility model, and be not used in restriction the utility model.
Fig. 1 is the application synoptic diagram of a kind of portable wind power generating field noise testing data acquisition system (DAS) of providing of the embodiment of the invention, as shown in Figure 1, the input end of portable wind power generating field noise testing data acquisition system (DAS) links to each other with the output terminal of the acoustic signal collectors such as the output terminal of meteorologic signal collector and microphone respectively, the output terminal of described acquisition system is that host computer links to each other by usb bus and data acquisition computer, wherein, the acoustic signal collector is used for gathering acoustic signal, the meteorologic signal collector is used for gathering meteorologic signal, and described meteorologic signal comprises temperature, wind speed, the signals such as air pressure.
Fig. 2 is the structural representation of a kind of portable wind power generating field noise testing data acquisition system (DAS) of providing of the embodiment of the invention, as shown in Figure 2, described acquisition system comprises filter 201, meteorological data collection device 202, acoustic data acquisition device 203, control and data link 204, supply unit 205, wherein, control and data link 204 comprise control module 2041, buffer unit 2042, delivery unit 2043.The data input pin of filter 201 accesses respectively meteorologic signal and acoustic signal, and data output end is connected with acoustics data collector 203 with meteorological data collection device 202 respectively.The data input pin of the control module 2041 of control and data link is connected with acoustics data collector 203 with meteorological data collection device 202 respectively, data output end links to each other with a data terminal of buffer unit 2042, and another data terminal of buffer unit 2042 links to each other with delivery unit 2043.In addition, the control end of control module 2041 also links to each other with the control port of filter 201, meteorological data collection device 202, acoustic data acquisition device 203, buffer unit 2042 and delivery unit 2043 respectively.Supply unit 205 links to each other with filter 201, meteorological data collection device 202, acoustic data acquisition device 203, control module 2041, buffer unit 2042 and delivery unit 2043 respectively, is used to the power supply of said apparatus or unit.
In present embodiment, filter 201 is specially CY8C29466 chip, meteorological data collection device 202 and is specially that MAX195 chip, acoustic data acquisition device 203 are specially the ADS5422 chip, control module 2041 is specially the TMS320V5402 chip, buffer unit 2042 is specially the IDT72V2113 chip, and delivery unit 2043 is specially the CY8C27443 chip.
During data acquisition system (DAS) work, at first filter 201 carries out low-pass filtering to acoustic signal and meteorologic signal respectively.The meteorologic signal collector is transferred to the meteorologic signal that collects in the filter 201 and the acoustic signal collector is that microphone is when being transferred to the acoustic signal that collects in the filter 201, the signal amplitude that the undesired signal of acoustic signal and meteorologic signal meeting doping high frequency in transmission course and microphone transmit is less, for undesired signal and the amplifying signal amplitude of rejecting high frequency, in data acquisition system (DAS), be provided with filter 201, filter 201 is specially the CY8C29466 chip in the present embodiment, be set to low-pass filter by software and JTAG (Joint Test Action Group, combined testing action group) mouthful of CY8C29466.The low-pass cut-off frequencies of CY8C29466 after arranging is 1000HZ, and enlargement factor is 20.Behind acoustic signal and the meteorologic signal process CY8C29466 chip, output is through acoustic signal and the meteorologic signal of the rejecting undesired signal after the low-pass filtering treatment and amplitude amplification.
202 pairs of meteorologic signals through low-pass filtering of meteorological data collection device are sampled.Meteorologic signal after wave apparatus 201 low-pass filtering treatment is input in the meteorological data collection device 202 and samples after filtration.During the meteorologic signal sampling, needing sampling rate is that middling speed and passage are many, the MAX195 chip is 16 successive approximation ADC (Analog To Digital Converter, analog to digital converter), have the characteristics such as high precision, low-power consumption, therefore meteorological data collection device 202 is specially middling speed sampling A/D chip MAX195 in the present embodiment, and its sample frequency is set to 200ksps (Kilo Samples Per Second, per second sampling thousand times).
203 pairs of acoustic signals through low-pass filtering of acoustic data acquisition device carry out the acoustic data sampling.Meteorologic signal is different to the requirement of sample frequency with acoustic signal, in the process of data sampling, during the sampling acoustic signal, needs the chip of high sampling rate, low-power consumption.The ADS5422 chip is 14 successive approximation ADC, its the highest sampling rate can reach 62Msps (Million Samples per Second, per second is sampled 1,000,000 times), therefore acoustic data acquisition device 203 is specially the ADS5422 chip in the present embodiment, and its sample frequency is set to 10Msps.
Control and the described filter 201 of data link 204 control, meteorological data collection device 202 and acoustics data collector 203 carry out corresponding operating, and outside transmission weather data and the acoustic data of having sampled.Control and data link 204 comprise control module 2041, buffer unit 2042, delivery unit 2043.
Meteorologic signal is also processed and acoustic signal in control module 2041 control other each devices and unit.The operations such as start and stop of control module 2041 control filter 201, meteorological data collection device 202 and acoustics data collectors 203, and need to carry out suitable processing to meteorologic signal and acoustic signal, therefore consider above factor, control module 2041 is specially digital signal processing chip TMS320V5402 in the present embodiment.TMS320V5402 control 201 pairs of meteorologic signals of filter and acoustic signal carry out meteorologic signal and the acoustic signal behind low-pass filtering, control meteorological data collection device 202 and acoustics data collector 203 sampling filters, and the acoustic signal after the sampling and meteorologic signal carried out digital FIR (Finite Impulse Response, finite impulse response) filtering, meteorologic signal is processed generated needed minute signal and acoustic signal is changed into continuously sound pressure level data of A weighted equivalence.Wherein, described minute signal is the 1 minute data value that the meteorologic signal weighted mean that will gather converts to.
Fig. 3 is the specific works flow process figure of the control module that provides of the embodiment of the invention, and as shown in Figure 3, described flow process comprises:
Step S301, the boot loader of operation DSP (Digital Signal Processing, digital signal processing).
The boot loader BootLoader of DSP is one section small routine of operation before the operating system nucleus operation.By this section small routine, can initiating hardware equipment, set up the memory headroom mapping graph, thus take the hardware environment of system to a proper states, in order to be ready to correct environment for final call operation system kernel.In embedded system, usually not as the such firmware program of BIOS (Basic Input Output System, Basic Input or Output System (BIOS)), so the loading initiating task of whole system is just finished by BootLoader fully.
Step S302 carries out initialization operation.
Control module carries out initialization operation, comprises interrupt vector is set, loads A weighted parameter, AD switching rate etc. being set.
Step S303 judges whether to receive the signal of the beginning image data of host computer.
Step S304, the look-at-me of wait meteorological data collection device and acoustics data collector.
Step S305 judges whether to receive look-at-me.
If control module 2041 receives the look-at-me from meteorological data collection device 202 and acoustics data collector 203, execution in step S306, otherwise execution in step S304.
Step S306, response is interrupted, and the weather data and the acoustic data that receive are processed.
Specifically, 2041 pairs of weather datas of control module are carried out the 1S data and are stored to buffer unit 2042 after average, acoustic data is at first carried out FIR filtering, then calculate the A weighted according to A weighted filter factor, then the 1S data are carried out the continuous Equivalent A weighted sound pressure level data that integration can obtain acoustic signal; When control module 2041 carried out the data processing, meteorological data collection device 202 and acoustics data collector 203 carried out next time analog to digital conversion.
Step S307, with the data upload after processing to host computer.
After control module 2041 is handled data, the data after processing are stored to buffer cell 2042, buffer cell 2042 is sent to delivery unit 2043 with data, and delivery unit 2043 is sent to host computer by usb bus with data.The data that receive in the host computer are processed according to wind energy turbine set noise level limit and measuring method (DL/T1084-2008).
Step S308, whether determining program finishes.
Whether control module 2041 determining programs finish, if finish the operation of terminator, otherwise execution in step S304.
Fig. 4 is a kind of portable wind power generating field noise testing data acquisition system (DAS) control module interrupt routine process flow diagram that the utility model provides, and as shown in Figure 4, described flow process comprises:
Step S401 receives look-at-me, calls interrupt routine.
After control module 2041 receives look-at-me, call interrupt routine.
Step S402 reads weather data and the acoustic data of the output of meteorological data collection device and acoustics data collector.
Interrupt routine reads weather data and the acoustic data after the sampling of meteorological data collection device 202 and acoustics data collector 203 outputs, and the data that read is saved in the register of control module 2041.
Step S403 turns back in the master routine of control module.
The end interrupt program turns back in the master routine of control module 2041.
Fig. 5 is that a kind of portable wind power generating field noise testing data acquisition system (DAS) control module that the utility model provides carries out the process flow diagram that the acoustic signal data are processed, and as shown in Figure 5, described flow process comprises:
Step S501, acoustic signal are stored in the corresponding register.
Acoustic signal after the sampling that control module 2041 will read is stored in the corresponding register.
Step S502 carries out low-pass filtering to acoustic signal.
The acoustic signal that 2041 pairs of control modules are stored in the register carries out the FIR low-pass filtering.
Step S503 carries out the A weighted.
The acoustic signal of the coefficient that control module 2041 goes out the FIR bandpass filter according to A weighted theoretical calculate after to the FIR low-pass filtering carries out the A weighted to be processed.
Step S504 judges whether data volume has expired 1S.
Step S505 calculates continuously A weighted sound pressure level of equivalence.
The 1S data are carried out the continuous Equivalent A weighted sound pressure level data that integration obtains acoustic signal.
Fig. 6 is that a kind of portable wind power generating field noise testing data acquisition system (DAS) control module that the utility model provides carries out meteorologic signal flow chart of data processing figure, and as shown in Figure 6, described flow process comprises:
Step S601, meteorologic signal are stored in the corresponding register.
Meteorologic signal after the sampling that control module 2041 will read is stored in the corresponding register.。
Step S602 carries out low-pass filtering to meteorologic signal.
The meteorologic signal that 2041 pairs of control modules are stored in the register carries out the FIR low-pass filtering treatment.
Step S603 judges whether data volume expires 1S.
Judge whether the data volume after the FIR low-pass filtering treatment expires 1S, if full 1S, execution in step S604, otherwise execution in step S601.
Step S604 calculates the 1S average data.
Calculate the 1S average data, obtain minute signal of meteorologic signal.
In sum, the utility model gathers acoustic signal and meteorologic signal by filter, meteorological data collection device and acoustics data collector, control and data link, solved the problem that available data acquisition system volume is large, carry inconvenience, had small volume, be convenient for carrying, especially carry the more time saving and energy saving beneficial effect of traditional data acquisition system (DAS) of comparing in remote wind-powered electricity generation place.
Although above the utility model is had been described in detail, the utility model is not limited to this, and those skilled in the art of the present technique can carry out various modifications according to principle of the present utility model.Therefore, all modifications of doing according to the utility model principle all should be understood to fall into protection domain of the present utility model.
Claims (8)
1. a portable wind power generating field noise testing data acquisition system (DAS) is characterized in that, comprising:
Respectively acoustic signal and meteorologic signal are carried out the filter of low-pass filtering;
The meteorological data collection device that connects an output terminal of described filter is used for the meteorologic signal through low-pass filtering is carried out meteorological data collection;
The acoustic data acquisition device that connects described another output terminal of filter is used for the acoustic signal through low-pass filtering is carried out acoustic data acquisition;
The control and the data link that connect respectively described filter, meteorological data collection device and acoustics data collector, be used for controlling described filter, meteorological data collection device and acoustics data collector and carry out corresponding operating, and the outside weather data and the acoustic data that have gathered of transmission.
2. acquisition system according to claim 1 is characterized in that, described control and data link comprise:
Connect respectively the control module of meteorological data collection device data output end and acoustics data collector data output end, the described weather data that has gathered and acoustic data are processed;
The buffer unit that connects described control module data output end is used for weather data and the acoustic data of control module output are carried out caching process;
The delivery unit that connects described buffer unit output terminal is used for sending weather data and acoustic data through caching process to outside host computer;
Wherein, described control module connects respectively the control port of described filter, meteorological data collection device, acoustic data acquisition device, buffer unit and delivery unit, is used for it is controlled.
3. acquisition system according to claim 2 is characterized in that, described meteorological data collection device is the middling speed analog to digital converter.
4. acquisition system according to claim 2 is characterized in that, described acoustic data acquisition device is high-speed AD converter.
5. acquisition system according to claim 2 is characterized in that, described control module comprises the TMS320V5402 chip, and described buffer unit comprises the IDT72V2113 chip, and described delivery unit comprises the CY8C27443 chip.
6. acquisition system according to claim 5 is characterized in that,
Described filter comprises the CY8C29466 chip;
Described acoustic data acquisition device is specially the ADS5422 chip;
Described meteorological data collection device is specially the MAX195 chip.
7. according to claim 1 to 6 each described acquisition systems, it is characterized in that described acquisition system also comprises:
Connect respectively the supply unit of filter, supply unit, meteorological data collection device, acoustic data acquisition device, control and data link, be used to it that power supply is provided.
8. acquisition system according to claim 7 is characterized in that, described supply unit comprises the TPS79501 chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012202191940U CN202748640U (en) | 2012-05-15 | 2012-05-15 | Portable noise-testing data acquisition system for wind power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012202191940U CN202748640U (en) | 2012-05-15 | 2012-05-15 | Portable noise-testing data acquisition system for wind power plant |
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| CN202748640U true CN202748640U (en) | 2013-02-20 |
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| CN2012202191940U Expired - Fee Related CN202748640U (en) | 2012-05-15 | 2012-05-15 | Portable noise-testing data acquisition system for wind power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374428A (en) * | 2014-11-12 | 2015-02-25 | 国家电网公司 | Noise measurement device with wind speed measurement function and implement method of noise measurement device with wind speed measurement function |
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2012
- 2012-05-15 CN CN2012202191940U patent/CN202748640U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374428A (en) * | 2014-11-12 | 2015-02-25 | 国家电网公司 | Noise measurement device with wind speed measurement function and implement method of noise measurement device with wind speed measurement function |
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Granted publication date: 20130220 Termination date: 20130515 |