CN107478326A - A kind of multichannel audible noise synchronized measurement system and method - Google Patents
A kind of multichannel audible noise synchronized measurement system and method Download PDFInfo
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- CN107478326A CN107478326A CN201710833429.2A CN201710833429A CN107478326A CN 107478326 A CN107478326 A CN 107478326A CN 201710833429 A CN201710833429 A CN 201710833429A CN 107478326 A CN107478326 A CN 107478326A
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- 238000005259 measurement Methods 0.000 title claims abstract description 78
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 12
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
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Abstract
The invention discloses a kind of multichannel audible noise synchronized measurement system, the system includes：Audible noise measuring module, for being measured to the noise rating number (NRN) of A-weighted sound level and different components evidence；For receiving the data uploading instructions of host computer by wireless communication module, by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to transmission to host computer；Host computer, data uploading instructions are sent for receiving data read command, and to the audible noise measuring module；For by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to sending to computing module；Computing module, for sending data read command to host computer according to prefixed time interval threshold value；For receiving the A-weighted sound level of the measurement and the noise rating number (NRN) evidence and environmental monitoring data of different components and showing；Environment monitoring module, sent for being monitored acquisition environmental monitoring data to the environment of transformer station, and by the environmental monitoring data to computing module.
Description
Technical field
The present invention relates to transformer station's noise testing field, and it is synchronous more particularly, to a kind of multichannel audible noise
Measuring system and method.
Background technology
Audible noise is project of transmitting and converting electricity engineering electromagnetic environment monitor and the major parameter of evaluation, for project of transmitting and converting electricity
, transformer station (or current conversion station) inner high voltage equipment is numerous, and the main equipment sound source such as transformer, reactor is strong, frequency is low, propagation distance
Far, it has also become one of the main reason for transformer station is complained by environmental protection.How to control transformer station's noise to turn into electromagnetic environment to control
One, field important topic, and control transformer station's noise to need development to carry out long-term long term monitoring point to the characteristic of audible noise
Analysis, grasps its spectral characteristic and the regularity of distribution, takes specific aim measure to be administered.
At present, more to transformer station's audible noise test to move test using single noise meter, the data volume of acquisition is few,
And transformer station region is big, strong sound source device is more, if using wire communication mode, it is necessary to specially lay communication cable, workload
It is all very expensive with cost；Meanwhile audible noise is with transformer station's operating condition, amblent air temperature and other extraneous noise jammings etc.
Have a great influence, the noise data of acquisition, which must combine meteorologic parameter, characteristic frequency etc., could judge its validity and correctness.It is existing
There is audible noise measuring device to use unit mode, corresponding 1 noise transducer of a noise meter, and use is directly connected to more more
Or communication cable, number of active lanes are few.The existing noise network analyzer of part producer, it can typically connect not more than 10 noises and visit
Head, for super, ultra-high voltage transformer station floor space, 10 probes still very little, are typically connected using wire cable, are led to
News need specially to connect up in station apart from limited (typically not greater than 100 meters), during for transformer station's magnetic-field measurement, and mainly can only
Short-term test for audible noise under fair weather.
Therefore, it is necessary to test the noise and meteorologic parameter of A-weighted sound level and different characteristic frequency component, with solution
Certainly the problem of noise testing inaccuracy.
The content of the invention
The invention provides a kind of multichannel audible noise synchronized measurement system and method, how to solve accurately to power transformation
Noise of standing carries out the problem of accurate measurement.
In order to solve the above problems, according to an aspect of the invention, there is provided a kind of same pacing of multichannel audible noise
Amount system, the system include：At least one audible noise measuring module, wireless communication module, host computer, computing module and
Environment monitoring module,
The audible noise measuring module, for being measured to the noise rating number (NRN) of A-weighted sound level and different components evidence；With
In the data uploading instructions that host computer is received by wireless communication module, by the A-weighted sound level of the measurement and different components
Noise rating number (NRN) is according to transmission to host computer；
The host computer, for receiving data read command, and send data to the audible noise measuring module and upload
Instruction；For by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to sending to computing module；
The computing module, for sending data read command to host computer according to prefixed time interval threshold value；For connecing
Receive the A-weighted sound level of the measurement and the noise rating number (NRN) evidence and environmental monitoring data of different components and show；
The environment monitoring module, for being monitored acquisition environmental monitoring data to the environment of transformer station, and by described in
Environmental monitoring data is sent to computing module.
Preferably, wherein the audible noise measuring module uses waterproof and dampproof structure design.
Preferably, wherein the data upload that the audible noise measuring module receives host computer by wireless communication module refers to
Order, by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to transmission to host computer, including：
The data that audible noise measuring module is sent by wireless communication module reception host computer by broadcasting instructions prepare
Uploading instructions；
Audible noise measuring module receives the data and prepares uploading instructions, and by the A-weighted sound level currently measured and not
Noise rating number (NRN) with component is according to being packed；
Audible noise measuring module receives the uploading instructions that host computer is sent, and the data transmission after the packing is supreme
Position machine.
Preferably, wherein the computing module also includes：
Memory cell, for storing the A-weighted sound level of the environmental monitoring data and measurement and the noise figure of different components
Data；
Alarm unit, for the noise rating number (NRN) evidence of the A-weighted sound level and default noise threshold to be compared, if described
The noise rating number (NRN) evidence of A-weighted sound level is continuously more than default noise figure in preset time period, and the environmental monitoring data accords with
Default environmental threshold value is closed, then sends alarm signal.
Preferably, wherein the computing module, in addition to：
If alarm unit sends alarm signal, computing module is when sending data read command next time, to corresponding
Audible noise measuring module sends alarm command, corresponding audible noise measuring module is sent light alarm signal.
Preferably, wherein
If the radius of transformer station is less than 2km, the wireless communication module is Si4463 wireless modules；
If the radius of transformer station is not less than 2km, the line communication module uses the communication network of operator.
According to another aspect of the present invention, there is provided a kind of multichannel audible noise method for synchronously measuring, methods described
Including：
Using audible noise measuring module to the A-weighted sound level of diverse location and the noise rating number (NRN) of different components according to surveying
Amount, the audible noise measuring module are at least one；
Environment monitoring module is monitored acquisition environmental monitoring data to the environment of transformer station, and by the environmental monitoring number
According to transmission to computing module；
Host computer receives the data read command that is sent according to prefixed time interval threshold value of computing module, and to described audible
Noise measurement module sends data uploading instructions；
Audible noise measuring module receives the data uploading instructions of host computer by wireless communication module, by the measurement
The noise rating number (NRN) of A-weighted sound level and different components is according to transmission to host computer；
Host computer is by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to transmission to computing module；
Computing module receives the A-weighted sound level of the measurement and the noise rating number (NRN) evidence and environmental monitoring number of different components
According to and show.
Preferably, wherein the audible noise measuring module uses waterproof and dampproof structure design.
Preferably, wherein the data upload that the audible noise measuring module receives host computer by wireless communication module refers to
Order, by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to transmission to host computer, including：
The data that audible noise measuring module is sent by wireless communication module reception host computer by broadcasting instructions prepare
Uploading instructions；
Audible noise measuring module receives the data and prepares uploading instructions, and by the A-weighted sound level currently measured and not
Noise rating number (NRN) with component is according to being packed；
Audible noise measuring module receives the uploading instructions that host computer is sent, and the data transmission after the packing is supreme
Position machine.
Preferably, wherein methods described also includes：
The A-weighted sound level of the environmental monitoring data and measurement and the noise rating number (NRN) of different components are stored using computing module
According to；
The noise rating number (NRN) evidence of the A-weighted sound level and default noise threshold are compared, if the A-weighted sound level is made an uproar
Sound Value Data is continuously more than default noise figure in preset time period, and the environmental monitoring data meets default environment threshold
Value, then send alarm signal.
Preferably, wherein methods described also includes：
If alarm unit sends alarm signal, computing module is when sending data read command next time, to corresponding
Audible noise measuring module sends alarm command, corresponding audible noise measuring module is sent light alarm signal.
Preferably, wherein
If the radius of transformer station is less than 2km, the wireless communication module is Si4463 wireless modules；
If the radius of transformer station is not less than 2km, the line communication module uses the communication network of operator.
The invention provides a kind of multichannel audible noise synchronized measurement system and method, can realize multiposition point, height
Precision synchronizes measurement to audible noise and meteorologic parameter, and it is multiple using wire communication connection to solve existing measurement apparatus
Miscellaneous, test probe is few, and measuring distance is short, the measurement moment can not Complete Synchronization the deficiencies of, the true level for reflecting audible noise with
Distribution, it can be provided for the monitoring of AC input transformation engineering audible noise particularly in transformer station, evaluation and control improvement important
Foundation, and in the monitoring of audible noise in AC input transformation engineering engineering field from now on, environmental protection inspection and acceptance and research, promote
Value is high, and application prospect is wide；Meanwhile the present invention has warning function, can find problem present in transformer station in time.
Brief description of the drawings
By reference to the following drawings, the illustrative embodiments of the present invention can be more fully understood by：
Fig. 1 is the structural representation according to the multichannel audible noise synchronized measurement system 100 of embodiment of the present invention；
Fig. 2 is the exemplary plot according to the multichannel audible noise measuring system of embodiment of the present invention；And
Fig. 3 is the flow chart according to the multichannel audible noise method for synchronously measuring 300 of embodiment of the present invention.
Embodiment
The illustrative embodiments of the present invention are introduced with reference now to accompanying drawing, however, the present invention can use many different shapes
Formula is implemented, and is not limited to embodiment described herein, there is provided these embodiments are to disclose at large and fully
The present invention, and fully pass on the scope of the present invention to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements are attached using identical
Icon is remembered.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, be appreciated that and its
The linguistic context of association area has consistent implication, and is not construed as Utopian or overly formal meaning.
Fig. 1 is the structural representation according to the multichannel audible noise synchronized measurement system 100 of embodiment of the present invention.Such as
Shown in Fig. 1, the multichannel audible noise synchronized measurement system of embodiment of the present invention utilizes audible noise measuring module to A weighteds
The noise rating number (NRN) of sound level and different components is according to measuring, and according to the data uploading instructions of host computer by the A weighted sound of measurement
The noise rating number (NRN) of level and different components is according to transmission to host computer；Host computer is by the A-weighted sound level of the measurement and different components
Noise rating number (NRN) is according to transmission to computing module；Computing module；Receive the A-weighted sound level of the measurement and the noise of different components
Value Data and environmental monitoring data are simultaneously shown；Meanwhile the environment monitoring module, obtained for being monitored to the environment of transformer station
Environmental monitoring data is taken, and the environmental monitoring data is sent to computing module.The present invention can realize multiposition point, high-precision
Degree synchronizes measurement to audible noise and meteorologic parameter, solves existing measurement apparatus and connects complexity using wire communication,
Test probe is few, and measuring distance is short, the measurement moment can not Complete Synchronization the deficiencies of, the true level for reflecting audible noise with point
Cloth, can for the monitoring of AC input transformation engineering audible noise particularly in transformer station, evaluation and control administer provide it is important according to
According to, and in the monitoring of audible noise in AC input transformation engineering engineering field from now on, environmental protection inspection and acceptance and research, promotion price
Value is high, and application prospect is wide.
The multichannel audible noise synchronized measurement system of embodiment of the present invention, including：At least one audible noise is surveyed
Measure module 101, wireless communication module 102, host computer 103, computing module 104 and environment monitoring module 105.
Preferably, the audible noise measuring module 101, for the noise rating number (NRN) evidence to A-weighted sound level and different components
Measure；For receiving the data uploading instructions of host computer by wireless communication module, by the A-weighted sound level of the measurement and
The noise rating number (NRN) of different components is according to transmission to host computer.
Preferably, wherein the audible noise measuring module uses waterproof and dampproof structure design.
Preferably, wherein the data upload that the audible noise measuring module receives host computer by wireless communication module refers to
Order, by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to transmission to host computer, including：
The data that audible noise measuring module is sent by wireless communication module reception host computer by broadcasting instructions prepare
Uploading instructions；
Audible noise measuring module receives the data and prepares uploading instructions, and by the A-weighted sound level currently measured and not
Noise rating number (NRN) with component is according to being packed；
Audible noise measuring module receives the uploading instructions that host computer is sent, and the data transmission after the packing is supreme
Position machine.
Preferably, wherein
If the radius of transformer station is less than 2km, the wireless communication module is Si4463 wireless modules；
If the radius of transformer station is not less than 2km, the line communication module uses the communication network of operator.
Preferably, the host computer 102, sent out for receiving data read command, and to the audible noise measuring module
Send data uploading instructions；For by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to sending to computing module.
Preferably, the computing module 103, refer to for sending digital independent to host computer according to prefixed time interval threshold value
Order；For receiving the A-weighted sound level of the measurement and the noise rating number (NRN) evidence and environmental monitoring data of different components and showing.
Preferably, the environment monitoring module 104, environmental monitoring number is obtained for being monitored to the environment of transformer station
According to, and the environmental monitoring data is sent to computing module.
Preferably, wherein the computing module also includes：
Memory cell, for storing the A-weighted sound level of the environmental monitoring data and measurement and the noise figure of different components
Data；
Alarm unit, for the noise rating number (NRN) evidence of the A-weighted sound level and default noise threshold to be compared, if described
The noise rating number (NRN) evidence of A-weighted sound level is continuously more than default noise figure in preset time period, and the environmental monitoring data accords with
Default environmental threshold value is closed, then sends alarm signal.
Preferably, wherein the computing module, in addition to：
If alarm unit sends alarm signal, computing module is when sending data read command next time, to corresponding
Audible noise measuring module sends alarm command, corresponding audible noise measuring module is sent light alarm signal.
In embodiments of the present invention, multichannel audible noise measuring system includes：A plurality of audible noise measurement module,
Wireless communication module, host computer, environment monitoring module and computing module.When being measured to transformer station's noise, becoming respectively
Power station nearby sets multiple monitoring points, and the noise at monitoring point is measured respectively using audible noise measuring module, including：
The audible noise data of A-weighted sound level and different components, and audible noise measuring module uses waterproof and dampproof design, for complete
It is continual to measure to audible noise；Meanwhile for the audible noise measuring module at each monitoring point according to address point
It is not numbered, convenient management.
Computer module sets the sampling interval, and data read command is sent to host computer according to the time in sampling interval.
Host computer receives after data read command to audible noise measuring module while sends data and prepare uploading instructions,
When audible noise module receives data and prepares uploading instructions, each audible noise measuring module is by current measurement data A weighteds
The audible noise data of sound level and different components) packing, it is each audible after host computer sends and sends upload command by poll
After noise measurement module receives the machine uploading instructions, measurement data is uploaded to host computer by wireless communication mode.Host computer
After receiving measurement data, real-time display is carried out to the noise data of the A-weighted sound level of the measurement data first, and by measurement data
It is uploaded to computing module.
Computing module receives and stores the measurement data, the measurement data and meteorologic parameter of real-time display different measuring points.
Meanwhile computing module can also be analyzed measurement data.Computing module is stored with noise level limit, when audible noise A weighteds
Sound level noise exceedes limit value (as set 1 minute one group of data, the data in half an hour are above limit value) for a long time, while meteorological
Parameter meet limit value condition (as be in without rain, without snow, without thunder and lightning weather) and can without obvious external interference exist (A weighted sound
Level noise figure is with corresponding 8kHz components in setting range), then computer terminal thinks that audible noise transfinites value, sends alarm signal
Number, simultaneous computer specifies it to send light warning signal when uploading data command to corresponding measuring unit transmission next time.
Embodiments of the present invention are illustrated in detail below
Fig. 2 is the exemplary plot according to the multichannel audible noise measuring system of embodiment of the present invention.As shown in Fig. 2 institute
Multichannel audible noise measuring system is stated to comprise at least：Audible noise measuring module 1, audible noise measuring module 2,1 are upper
Machine, 1 weather station, each audible noise measuring module member include：Audible noise sensor, micro-control unit MCU, display unit
And alarm unit, the host computer include：Display unit and button and micro-control unit MCU；The audible noise measuring module 1
And 2 use wireless telecommunications between host computer respectively, the host computer, weather station and computer use wire communication.
Audible noise test cell can measure to noise different frequency component value and A-weighted sound level noise rating number (NRN) evidence,
And A-weighted sound level noise figure is shown.When transformer station's radius is less than 2km, communicated using wireless module, as
Free 433MHz may be selected in Si4463 radio-frequency modules, communication frequency band, communication distance farthest up to 2km, if by computer and
Host computer is arranged in the middle position of all measuring points, can meet whole power transformation completely with covering radius 2km border circular areas
The needs that audible noise monitors in standing.More remote wireless telecommunications can use the communication network of operator, due to data volume
It is larger, it is necessary to pay certain campus network.
Multiple measuring units are distributed across different zones, and each measuring unit indicates different geocodings；Meter
Calculation machine sends reading data command, after host computer receives instruction, data is sent by broadcasting instructions according to the time interval of setting
During upload command, all measuring units receive the order simultaneously, and to current measurement data (different frequency component value and A weighteds
Sound level noise figure) packing, host computer send poll instruction send upload command after, each measuring unit successively leads to measurement data
Cross wireless communication mode and be uploaded to host computer；The step can ensure that the uniformity of the probe time of reception of different measuring points, upload to
Every group of measurement data of formate field intensity of the diverse location of host computer is all that synchronization obtains, such ambient temperature, humidity with
And the factor such as operating condition is consistent, its regularity of distribution more could really react live actual state.Host computer receives
After measurement data, not only meeting current measuring unit A weighted measurement result of real-time display itself, also transmits that data to computer
End, computer shows different measuring points measurement result and meteorologic parameter simultaneously, and data can be stored and analyzed.
Be measured or measurement process in, when computer terminal can transfer in all periods data or part at any time
Between in section data be compared and analyze, provide diverse location audible noise distribution curve or same position audible noise with the time
Change curve.
The audible noise measuring unit, using waterproof and dampproof structure design.The device can be used for round-the-clock audible make an uproar
Sound measurement needs.
Computer is stored with noise level limit, when audible noise A sound levels exceed limit value (as set 1 minute one group of number for a long time
According to the data in half an hour are above limit value), at the same meteorologic parameter meet limit value condition (as be in without rain, without snow, without thunder and lightning
Weather) and can have (A-weighted sound level noise figure is with corresponding 8kHz components in setting range) without obvious external interference, then
Computer terminal thinks that audible noise transfinites value, sends alarm signal, simultaneous computer is next time to corresponding measuring unit transmission
When uploading data command, it is specified to send light warning signal.
Fig. 3 is the flow chart according to the multichannel audible noise method for synchronously measuring 300 of embodiment of the present invention.Such as Fig. 3
Shown, the multichannel audible noise method for synchronously measuring 300 starts at step 301, is surveyed in step 301 using audible noise
Amount module measures to the A-weighted sound level of diverse location and the noise rating number (NRN) evidence of different components, the audible noise measuring mould
Block is at least one.
Preferably, wherein the audible noise measuring module uses waterproof and dampproof structure design.
Preferably, acquisition environmental monitoring data is monitored to the environment of transformer station in step 302 environment monitoring module, and
The environmental monitoring data is sent to computing module.
Preferably, the digital independent sent in step 303 host computer reception computing module according to prefixed time interval threshold value
Instruction, and send data uploading instructions to the audible noise measuring module.
Preferably, the data upload of host computer is received by wireless communication module in step 304 audible noise measuring module
Instruction, by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to transmission to host computer.
Preferably, wherein the data upload that the audible noise measuring module receives host computer by wireless communication module refers to
Order, by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to transmission to host computer, including：
The data that audible noise measuring module is sent by wireless communication module reception host computer by broadcasting instructions prepare
Uploading instructions；
Audible noise measuring module receives the data and prepares uploading instructions, and by the A-weighted sound level currently measured and not
Noise rating number (NRN) with component is according to being packed；
Audible noise measuring module receives the uploading instructions that host computer is sent, and the data transmission after the packing is supreme
Position machine.
Preferably, in step 305 host computer by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to transmission
To computing module.
Preferably, the A-weighted sound level of the measurement and the noise figure of different components are received in step 306 computing module
Data and environmental monitoring data are simultaneously shown.
Preferably, wherein methods described also includes：
The A-weighted sound level of the environmental monitoring data and measurement and the noise rating number (NRN) of different components are stored using computing module
According to；
The noise rating number (NRN) evidence of the A-weighted sound level and default noise threshold are compared, if the A-weighted sound level is made an uproar
Sound Value Data is continuously more than default noise figure in preset time period, and the environmental monitoring data meets default environment threshold
Value, then send alarm signal.
Preferably, wherein methods described also includes：
If alarm unit sends alarm signal, computing module is when sending data read command next time, to corresponding
Audible noise measuring module sends alarm command, corresponding audible noise measuring module is sent light alarm signal.
Preferably, wherein
If the radius of transformer station is less than 2km, the wireless communication module is Si4463 wireless modules；
If the radius of transformer station is not less than 2km, the line communication module uses the communication network of operator.
The multichannel audible noise method for synchronously measuring 300 of embodiments of the invention and an alternative embodiment of the invention
Multichannel audible noise synchronized measurement system 100 is corresponding, will not be repeated here.
Finally it should be noted that：Above example is only illustrating the technical scheme of the application rather than to its protection domain
Limitation, although the application is described in detail with reference to above-described embodiment, those of ordinary skill in the art should
Understand：Those skilled in the art read the embodiment of application can be still carried out after the application a variety of changes, modification or
Person's equivalent substitution, these changes, modification or equivalent substitution, it applies within pending right at it.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
What subsidiary Patent right requirement was limited, except the present invention other embodiments disclosed above equally fall the present invention's
In the range of.
Normally, all terms used in the claims are all solved according to them in the usual implication of technical field
Release, unless clearly being defined in addition wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurately order, unless explicitly stated otherwise.
Claims (12)
1. a kind of multichannel audible noise synchronized measurement system, it is characterised in that the system includes：It is at least one audible to make an uproar
Sound measurement module, wireless communication module, host computer, computing module and environment monitoring module,
The audible noise measuring module, for being measured to the noise rating number (NRN) of A-weighted sound level and different components evidence；For leading to
The data uploading instructions that wireless communication module receives host computer are crossed, by the A-weighted sound level of the measurement and the noise of different components
Value Data is sent to host computer；
The host computer, data uploading instructions are sent for receiving data read command, and to the audible noise measuring module；
For by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to sending to computing module；
The computing module, for sending data read command to host computer according to prefixed time interval threshold value；For receiving
State the A-weighted sound level of the measurement and the noise rating number (NRN) evidence and environmental monitoring data of different components and show；
The environment monitoring module, for being monitored acquisition environmental monitoring data to the environment of transformer station, and by the environment
Monitoring Data is sent to computing module.
2. system according to claim 1, it is characterised in that the audible noise measuring module uses waterproof and dampproof knot
Structure designs.
3. system according to claim 1, it is characterised in that the audible noise measuring module passes through wireless communication module
The data uploading instructions of host computer are received, the noise rating number (NRN) of the A-weighted sound level of the measurement and different components is supreme according to sending
Position machine, including：
The data that audible noise measuring module is sent by wireless communication module reception host computer by broadcasting instructions prepare to upload
Instruction；
Audible noise measuring module receives the data and prepares uploading instructions, and the A-weighted sound level currently measured and difference are divided
The noise rating number (NRN) of amount is according to being packed；
Audible noise measuring module receives the uploading instructions that host computer is sent, and the data after the packing are sent to upper
Machine.
4. system according to claim 1, it is characterised in that the computing module also includes：
Memory cell, for storing the A-weighted sound level of the environmental monitoring data and measurement and the noise rating number (NRN) evidence of different components；
Alarm unit, for the noise rating number (NRN) evidence of the A-weighted sound level and default noise threshold to be compared, if the A is counted
The noise rating number (NRN) of sound level is weighed according to being continuously more than default noise figure in preset time period, and the environmental monitoring data meet it is pre-
If environmental threshold value, then send alarm signal.
5. system according to claim 4, it is characterised in that the computing module, be additionally operable to：
If alarm unit sends alarm signal, computing module is when sending data read command next time, to corresponding audible
Noise measurement module sends alarm command, corresponding audible noise measuring module is sent light alarm signal.
6. system according to claim 1, it is characterised in that
If the radius of transformer station is less than 2km, the wireless communication module is Si4463 wireless modules；
If the radius of transformer station is not less than 2km, the line communication module uses the communication network of operator.
7. a kind of multichannel audible noise method for synchronously measuring, it is characterised in that methods described includes：
The A-weighted sound level of diverse location and the noise rating number (NRN) evidence of different components are measured using audible noise measuring module,
The audible noise measuring module is at least one；
Environment monitoring module is monitored acquisition environmental monitoring data to the environment of transformer station, and the environmental monitoring data is sent out
Deliver to computing module；
Host computer receives the data read command that is sent according to prefixed time interval threshold value of computing module, and to the audible noise
Measurement module sends data uploading instructions；
Audible noise measuring module receives the data uploading instructions of host computer by wireless communication module, and the A of the measurement is counted
The noise rating number (NRN) of sound level and different components is weighed according to transmission to host computer；
Host computer is by the noise rating number (NRN) of the A-weighted sound level of the measurement and different components according to transmission to computing module；
The A-weighted sound level of the computing module reception measurement and the noise rating number (NRN) evidence and environmental monitoring data of different components are simultaneously
Display.
8. according to the method for claim 7, it is characterised in that the audible noise measuring module uses waterproof and dampproof knot
Structure designs.
9. according to the method for claim 7, it is characterised in that the audible noise measuring module passes through wireless communication module
The data uploading instructions of host computer are received, the noise rating number (NRN) of the A-weighted sound level of the measurement and different components is supreme according to sending
Position machine, including：
The data that audible noise measuring module is sent by wireless communication module reception host computer by broadcasting instructions prepare to upload
Instruction；
Audible noise measuring module receives the data and prepares uploading instructions, and the A-weighted sound level currently measured and difference are divided
The noise rating number (NRN) of amount is according to being packed；
Audible noise measuring module receives the uploading instructions that host computer is sent, and the data after the packing are sent to upper
Machine.
10. according to the method for claim 7, it is characterised in that methods described also includes：
The A-weighted sound level of the environmental monitoring data and measurement and the noise rating number (NRN) evidence of different components are stored using computing module；
The noise rating number (NRN) evidence of the A-weighted sound level and default noise threshold are compared, if the noise figure of the A-weighted sound level
Data are continuously more than default noise figure in preset time period, and the environmental monitoring data meets default environmental threshold value, then
Send alarm signal.
11. according to the method for claim 7, it is characterised in that methods described also includes：
If alarm unit sends alarm signal, computing module is when sending data read command next time, to corresponding audible
Noise measurement module sends alarm command, corresponding audible noise measuring module is sent light alarm signal.
12. according to the method for claim 7, it is characterised in that
If the radius of transformer station is less than 2km, the wireless communication module is Si4463 wireless modules；
If the radius of transformer station is not less than 2km, the line communication module is the communication network of operator.
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