CN108387953A - A kind of distributed Design of meteorological data collection - Google Patents
A kind of distributed Design of meteorological data collection Download PDFInfo
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- CN108387953A CN108387953A CN201810154634.0A CN201810154634A CN108387953A CN 108387953 A CN108387953 A CN 108387953A CN 201810154634 A CN201810154634 A CN 201810154634A CN 108387953 A CN108387953 A CN 108387953A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/02—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
Abstract
The embodiment of the present application provides a kind of distributed Design of meteorological data collection, including sensing layer, network layer and application layer；Sensing layer includes multiple information post offices, and multiple meteorological data collection nodes with the communication connection of each information post office, and meteorological data collection node is for acquiring meteorological data, and information post office is for summarizing meteorological data and being sent to network layer；Network layer includes multiple gateways, and with the server that connect of multiple gateway communications, gateway is used to carry out protocol conversion to the meteorological data received, and the meteorological data after protocol conversion is reported to server；Application layer includes the mobile terminal being connect with server communication, and the software program that data interaction is carried out with server is stored in mobile terminal.By distributed structure and it is based on narrowband technology of Internet of things, the coverage area of Design of meteorological data collection is improved, to improve the accuracy of collected meteorological data.
Description
Technical field
This application involves internet of things field more particularly to a kind of distributed Design of meteorological data collection.
Background technology
Meteorology is the general designation of the physical phenomenons of all air such as wind, rain, thunder, electricity in occurring on high, the pass with life
System is increasingly close, and people also increasingly pay close attention to the variation of weather.Along with the raising of quality of life, people are to small meteorological, micro- gas
The concern of time and the demand for obtaining weather information are growing day by day, and arrange work and live according to weather conditions.
Design of meteorological data collection in the prior art, since the power supply of meteorological data collection node is typically to be supplied by battery
Electricity, the electricity of battery storage affects the service life of meteorological data collection node.In order to overcome battery storage electricity few
Defect, part Design of meteorological data collection powers to the operational module of meteorological data collection node using AC power, in this way, shadow
The coverage area for having rung Design of meteorological data collection causes the acquisition of meteorological data not comprehensive enough, affects the standard of meteorological data
True property.
Invention content
In view of this, the purpose of the application is to propose a kind of distributed Design of meteorological data collection, it is existing to solve
In technology, the small technical problem of the service life and Design of meteorological data collection coverage area of meteorological data collection node.
Based on above-mentioned purpose, present applicant proposes a kind of distributed Design of meteorological data collection, including：
Sensing layer, network layer and application layer；
The sensing layer includes multiple information post offices, and is adopted with multiple meteorological datas of each information post office communication connection
Collect node, the meteorological data collection node is summarized collected meteorological data by base station for acquiring meteorological data
To described information post office, described information post office is used to the meteorological data received being sent to the network layer；
The network layer includes multiple gateways, and the server being connect with multiple gateway communications, the gateway
For carrying out protocol conversion to the meteorological data received, and the meteorological data after protocol conversion is reported into the server,
The server is for storing the meteorological data that the gateway reports；
The application layer includes the mobile terminal being connect with the server communication, is stored in the mobile terminal and institute
The software program that server carries out data interaction is stated, the meteorology stored in the server can be obtained by the software program
Data, and shown in the mobile terminal.
In some embodiments, the meteorological data collection node is distributed at cellular around the base station.
In some embodiments, the meteorological data collection node includes power module, micro-control unit module, sensor
Module and data interaction module, the power module respectively with the micro-control unit module, the sensor assembly and described
Data interaction module is electrically connected, and is used for the micro-control unit module, the sensor assembly and the data interaction module
Power supply, the micro-control unit module are communicated to connect with the sensor assembly and the data interaction module respectively, for pair
The collected data of sensor assembly are handled, and by the data interaction module and described information post office into line number
According to interaction.
In some embodiments, further include：
Energy supply control module, the energy supply control module include the first control unit and the second control unit, the power supply
Module by first control unit to the micro-control unit module for power supply, by second control unit respectively to institute
State sensor assembly and data interaction module power supply, second control unit and the micro-control unit module communication link
It connects, the micro-control unit module controls power supply by second control unit and handed over to the sensor assembly and the data
The power supply of mutual module.
In some embodiments, it is described micro- after the only described micro-control unit module receives meteorological data acquisition instruction
Control unit module can just control second control unit and control power supply to the sensor assembly and the data interaction mould
Block is powered, and obtains the collected meteorological data of the sensor assembly, the gas that will be got by the data interaction module
Image data is sent to described information post office, after the transmission for completing meteorological data, controls second control unit and controls power supply
Stop powering to the sensor assembly and the data interaction module.
In some embodiments, the meteorological data got is being sent to described information post office by the data interaction module
In the process, the communication link with described information post office is being established, and is being sent out the meteorological data got by the communication link
It send to described information post office, the communication link can be made to continue to keep connection status within a preset period of time, and by pre-
If after the period, disconnecting the communication link.
In some embodiments, after disconnecting the communication link, micro-control unit module control second control
Unit control power supply processed stops powering to the sensor assembly and the data interaction module.
In some embodiments, the meteorological data collection node includes at least one of following：
Temperature sensor, humidity sensor, air velocity transducer, wind transducer, illuminance sensor, rain sensor and
Baroceptor.
In some embodiments, the sensor in the meteorological data collection node has common bottom plate and interface.
In some embodiments, the meteorological data collection node further includes physical quantity data conversion module, the physics
It measures data conversion module and linear regression is carried out to the collected physical quantity data of meteorological data collection node by BP algorithm, make institute
It is corresponding with digital magnitude relation to state physical quantity data.
The embodiment of the present application provides a kind of distributed Design of meteorological data collection, including sensing layer, network layer and application
Layer；The sensing layer includes multiple information post offices, and multiple meteorological data collection sections with the communication connection of each information post office
Point, the meteorological data collection node are summarized collected meteorological data to institute by base station for acquiring meteorological data
Information post office is stated, described information post office is used to the meteorological data received being sent to the network layer；The network layer includes
Multiple gateways, and the server that is connect with multiple gateway communications, the gateway are used for the meteorological data to receiving
Protocol conversion is carried out, and the meteorological data after protocol conversion is reported into the server, the server is described for storing
The meteorological data that gateway reports；The application layer includes the mobile terminal being connect with the server communication, the mobile terminal
In be stored with the server carry out data interaction software program, the server can be obtained by the software program
The meteorological data of middle storage, and shown in the mobile terminal.By distributed structure and it is based on narrowband technology of Internet of things,
The coverage area for improving Design of meteorological data collection, to improve the accuracy of collected meteorological data.
Description of the drawings
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the structural schematic diagram of the distributed Design of meteorological data collection of the embodiment of the present application one；
Fig. 2 is the structure of the meteorological data collection node of the distributed Design of meteorological data collection of the embodiment of the present application two
Schematic diagram；
Fig. 3 is the interruption of the meteorological data collection node of the distributed Design of meteorological data collection of the embodiment of the present application three
Processing flow schematic diagram；
Fig. 4 is wireless receiving interruption, wireless receiving and the processing task and wireless transmission task of meteorological data collection node
Relation schematic diagram；
Fig. 5 is the relation schematic diagram with AD data relevant interruption and task；
Fig. 6 is the hardware layer of the meteorological data collection node of the distributed Design of meteorological data collection of the embodiment of the present application
Structural schematic diagram；
Fig. 7 is that the structure of the meteorological data collection node of the distributed Design of meteorological data collection of the embodiment of the present application is shown
It is intended to；
Fig. 8 is the schematic diagram of three layers of BP neural network.
Specific implementation mode
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, is illustrated only in attached drawing and invent relevant part with related.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Narrowband Internet of Things (Narrow Band Internet of Things, NB-IoT) is Internet of Things Network Communication body of new generation
System has the characteristics that the basic fundamentals such as connection greatly, wide covering, deep penetration, low cost and low-power consumption.Narrowband Internet of Things includes movement
Terminal (i.e. man-machine interactive system), information post office, and pass through the NB-IoT terminals of base station and the communication connection of information post office, NB-
IoT terminals be one kind using microcontroller as core, have the function of data acquisition, control, operation etc., carry NB-IoT communication work(
Can, or even comprising mechanical structure, it is used for the software and hardware entity of specific function, such as NB-IoT gas meter, flow meters, NB-IoT traffic lights, NB-
IoT reading intelligent agriculture equipment etc., i.e., various practical NB-IoT application products.With the development of narrowband technology of Internet of things,
NB-IoT application systems will be as the key technology of many entity industries.
Distributed Design of meteorological data collection in the embodiment of the present application uses during summarizing meteorological data
Narrowband technology of Internet of things so that the coverage area of the meteorological data collection acquisition node centered on base station is wider, to improve
The accuracy of collected meteorological data.
As one embodiment of the application, as shown in Figure 1, being the distributed meteorological data collection of the embodiment of the present application
The structural schematic diagram of system.From figure 1 it appears that the distributed Design of meteorological data collection in the present embodiment, is divided into three
Layer architecture, above-mentioned three-tier architecture are respectively：Sensing layer, network layer and application layer.It, can by the way that system to be carried out to the division of level
To improve the flexibility of system application, for example, can any one layer in three-tier architecture is modified or be replaced respectively, without
It can influence the stability of other two-tier systems.
For above-mentioned three-tier architecture, wherein the sensing layer includes multiple information post offices, and each information post office has certainly
One or more communication base station based on NB-IoT agreements of body configuration, and it is multiple with the communication connection of each information post office
Meteorological data collection node, the meteorological data collection node lead to collected meteorological data for acquiring meteorological data
It crosses NB-IoT communication base stations to summarize to described information post office, described information post office is for the meteorological data received to be sent to
The network layer.Above-mentioned multiple information post offices can be distributed in different regions in regional space, and the meteorological data is adopted
Collection node can be distributed in cellular around the communication base station, to realize meteorological data collection node as far as possible
It covers all around.It can be provided with communication module on the meteorological data collection node, pass through the base station and described information postal
Office establishes communication connection, by the collected meteorological data collection node site ambient enviroment of meteorological data collection node
Meteorological data be sent to described information post office, described information post office can store the meteorological data received, also may be used
To be directly forwarded to the meteorological data received.
The network layer includes multiple gateways, and the server being connect with multiple gateway communications, the gateway
Meteorological data for receiving the transmission of the information post office in sensing layer, and the meteorological data received is reported to and the gateway
The server of communication connection.In the present embodiment, it can be based on having between the information post office in the sensing layer and the server
Line or Wireless networking technologies carry out data transmission, and the Internet communication technologys can be based between the server and are carried out with application layer
Data transmission, the Data Transport Protocol used during data transmission twice are different.The gateway can be also used for receiving
The meteorological data arrived carries out protocol conversion, and the meteorological data after protocol conversion is reported to the server, the server
The meteorological data reported for storing the gateway.In the present embodiment, the server can also report the gateway
Meteorological data carries out preliminary treatment, for example, the meteorological data collection node institute can be primarily determined according to the meteorological data
The weather conditions (for example, fine day, rainy day etc.) of ambient enviroment on ground.
The application layer includes the mobile terminal being connect with the server communication, is stored in the mobile terminal and institute
The software program that server carries out data interaction is stated, the meteorology stored in the server can be obtained by the software program
Data, and shown in the mobile terminal.In the present embodiment, the mobile terminal can include but is not limited to intelligent hand
Machine, tablet computer, smartwatch or laptop etc..Software program on the mobile terminal can be used as individually application
It is present in the mobile terminal, the mobile terminal can also be present in the formation of embedded program.
Distributed Design of meteorological data collection in the present embodiment, due to being based on narrowband technology of Internet of things so that meteorological
The coverage area of data acquisition node is wider, improves the coverage area of Design of meteorological data collection, is collected to improve
Meteorological data accuracy.
As the alternative embodiment of the application, in the above-described embodiments, the meteorological data collection node can be at
Cellular to be distributed in around the base station, each meteorological data collection node can be distributed in the vertex of " honeycomb "
On, it equidistant can also be distributed on the side of " honeycomb ", to be the model of each meteorological data collection coverage
Enclose it is almost the same, furthermore it is also possible to which the position of the meteorological data collection node is arranged according to local geographical environment.
The meteorological data collection node is designed using damascene structures, from the bottom to top as shown in Fig. 2, including hardware successively
Layer, hardware abstraction layer, function module layer, application layer.Wherein upper layer module can directly invoke the function of lower module, without
Understand and realizes details.Hardware layer is each circuit module for forming meteorological data collection node.The hardware abstraction layer is used for
On the circuit base of hardware layer, it is abstracted and unified calling interface is provided for function module layer.The function module layer is including being
System kernel module, peripheral hardware drive module, call function library etc.；Wherein system kernel module includes task scheduling submodule and interruption
Submodule is managed, task scheduling submodule to each application task module of application layer for executing scheduling, the interrupt management
Submodule realizes the management to application layer interrupt service routines module；The call function library storage task execution and interrupt processing
In the process for the function performance of calling；The peripheral hardware driving provides the interface for calling the various peripheral hardwares of hardware layer.The application layer
Including multiple application task modules and interrupt service routines module, the side to be combined with interrupt processing by task execution
Formula completes the data acquisition function of meteorological data collection node.
Specifically, system kernel module is responsible for task scheduling and interrupt management, and there is close connection for task and interruption
System, the switching of different task are responsible for completion by interrupting, more accurately for, be that tick interrupt is completed.System kernel module
Interrupt processing process is divided into two relatively independent parts：Kernel ISR and user ISR.Kernel ISR can quickly respond interruption,
Realize mapping of the hardware interrupts to user ISR；User ISR is consistent with Interrupt Service Routine, for handling various interrupt events.When
When interrupt event triggers, kernel ISR can be entered first and executed, interrupt vector table is then searched again, go to corresponding user ISR and hold
Row realizes the mapping between the Interrupt Service Routine that peripheral hardware hardware interrupts are write to user.If there is other interruptions are untreated, then
Be further continued for executing other interruptions, after search whether there is or not higher priority task ready, if there is then beginning a task with scheduling, switching
Stack pointer, otherwise the kernel ISR execution of this interruption terminate, and entire interrupt processing flow is as shown in Figure 3.
The application task module of application layer specifically includes：Main task module, for complete initialization global variable and
Function module, creates other non-self-starting tasks, and ISR, ena-bung function modules interrupts are interrupted in installation.Wireless data receives and processing
Task module for radio frequency reception data frame and executes processing；Specifically, it is received in message queue from RF and receives message, lost
Fall redundancy mac frame, retain the mac frame for needing this terminal node to be handled, if you do not need to frame decoding, such as repeater frame, directly into
The processing of row relay forwarding；Its MAC header being peeled off such as this section point frame if necessary to frame decoding, obtaining NWK frames, it is corresponding to execute command word
Response is handled；Command frame is handled, is responded；For data frame, the processing of downlink data is completed.When response framing, first
All nodal informations of request are obtained, APL frames, NWK frames, mac frame (except MAC verifications are in addition to) is gradually formed, is put into be sent disappear
It ceases in queue, waits to be sent.Task module is transmitted wirelessly, is handled for sending mac frame to radio frequency；For each frame node
The MAC frames to be sent (do not include MAC verifications and part), can all be put into message queue, this task module is every time from the chained list
A mac frame is taken out, MAC verifications is calculated and first supplements into complete mac frame, recall PHY layer function supplement into complete object
Frame is managed, and complete physical frame will be supplemented and sent by RF.House dog task module flies for preventing program exception from running,
Periodically by house dog counter O reset；The house dog time is set, that is to say, that not by house dog counter within the house dog time
Clearing can then cause watchdog reset, to ensure the normal operation of normal program operation state, by house dog counter O reset
Time is set to 800ms.House dog task module is wirelessly communicated, the stability for ensureing the wireless data between gateway prevents
Data acquisition node does not have wireless data transceiving for a long time.Because gateway needs to upload node data per minute, when meteorological number
Nothing can then be caused by being not received by wireless data packet in each polling cycle (polling cycle is also 1 minute) according to acquisition node
Line communicates watchdog reset.Run indicator task module：The primary bright dark state of switching per second, is used to indicate the normal fortune of node
Whether row.When node operation exception, then node, which will appear, is always on or often dark, can quickly decision node normal operation whether. AD
Data are acquired to be sampled 1 time for 1 second with refresh tasks module, ADC timings, obtains chip temperature, chip voltage and 7 road AD sampled values.
Double buffering mechanism is used simultaneously, it is ensured that the freshness of AD data is eliminated level shake by intermediate value and mean filter, made simultaneously
Physical quantity recurrence is carried out to AD data with BP algorithm.AD data store tasks modules, for the primary newest AD of storage per minute
Data include the data quality control state of the AD values in each channel and channel, are divided into correct, mistake, missing etc..
Interrupt service routines module specifically includes：Wireless data receives interrupt module, for receiving a frame physics frame number
It according to interruption is generated when completing, informs that physics frame data are put into fifo buffer, then executes and interrupt ISR.Air velocity transducer meter
Number interrupt module is interrupted for generating primary overflow when time out period reaches；When channel 0 generates input capture interrupt event
A channel interrupt is generated, while being incremented by with global variable and being used for counting the frequency signal of air velocity transducer；Wind speed passes
The maximum wind velocity that sensor is supported is 60m/s, resolving power 0.1m/s, then per second can at most generate 600 input capture signals,
By nyquist sampling theorem, then per second need to acquire 1200 signals, thus it is initial in the input capture to TPM0 modules
It is 0.8ms that the sampling period is arranged when change, can sample 1250 times then per second and can meet the needs of signal acquisition；Rain sensor
Counting interrupt module is interrupted for then generating primary overflow in time out period；When channel 0 generates input capture interrupt event
A channel interrupt is generated, while global variable is incremented by for being counted to the frequency signal of rain sensor.Rainfall senses
The maximum rainfall that device is supported is 4mm/min, and resolving power 0.1mm/min, the setting sampling period is 2.5ms, can be met per minute
80 sample requirements.Baroceptor serial ports interrupt module generates deuterzooid interruption, if connecing for often receiving a byte
The atmospheric pressure value data packet that baroceptor sends over is received, is put into global array.
Meteorological data collection node completes meteorological data collection section task execution in such a way that interrupt processing is combined
The data acquisition of point and data-transformation facility, specifically：With wireless data transceiving it is relevant interruption and task be total to there are three,
Be respectively wireless receiving interrupt, wireless receiving and processing task and wireless transmission task, and by wireless receiving message queue and
Transmitting wireless messages queue carries out the transmission of data, and the relationship between three is shown in Fig. 4.AD data outages and task nexus, according to
The difference for the sensor signal that sensor generates can be three kinds of serial communication signal, AD signals and input capture signal, divide
Data processing is not carried out using different modes.With AD data it is relevant interruption and task be total to there are five, be air pressure sensing respectively
The interruption of device serial communication, the acquisition of air velocity transducer counting interrupt, rain sensor counting interrupt, AD data and refresh tasks and AD
Data store tasks, relationship each other are shown in Fig. 5.
As shown in fig. 6, being the meteorological data collection node of the distributed Design of meteorological data collection of the embodiment of the present application
Hardware schematic diagram of a layer structure.As one embodiment of the application, the meteorological data collection node includes power module
201, micro-control unit module 202, sensor assembly 203 and data interaction module 204.The power module 201 respectively with institute
It states micro-control unit module 202, the sensor assembly 203 and the electrical connection of the data interaction module 204 and (carries arrow in figure
The line of head indicates electric connection mode), it is used for the micro-control unit module 202, the sensor assembly 203 and the number
According to interactive module 204 power, the micro-control unit module 202 respectively with the sensor assembly 203 and the data interaction
The communication connection of module 204 (broken line in figure indicates communication connection mode), for the collected data of the sensor assembly
It is handled, and data interaction is carried out by the data interaction module and described information post office.In the present embodiment, described
Power module 201 can be accumulator.In addition, the micro-control unit module 202 can also control the power module 201 with
The power on/off of the sensor assembly 203 and the data interaction module 204.When the power module 201 is not to the sensing
When device module 203 and the data interaction module 204 are powered, the meteorological data collection node is in standby, so as to
To save electric energy, and then extend the service life of the meteorological data collection node.
One specific implementation of the meteorological data collection node as the application Design of meteorological data collection, above-mentioned
Can also include energy supply control module in meteorological data collection node in embodiment.As shown in fig. 7, being the embodiment of the present application
Distributed Design of meteorological data collection meteorological data collection node structural schematic diagram.It can be seen from figure 7 that this reality
The meteorological data collection node for applying example includes that power module 201, micro-control unit module 202, sensor assembly 203 and data are handed over
Mutual module 204, in addition, further including energy supply control module 205.Wherein, the energy supply control module 205 includes the first control unit
2051 and second control unit 2052, the power module 201 is by first control unit 2051 to the microcontroller list
Element module 202 is powered, by second control unit 2052 respectively to the sensor assembly 203 and the data interaction
Module 204 is powered, and second control unit 2052 is communicated to connect with the micro-control unit module 202, the microcontroller list
Element module 202 controls power supply to the sensor assembly 202 and the data interaction mould by second control unit 2052
The power supply of block 202.
In the present embodiment, after the only described micro-control unit module 202 executes meteorological data acquisition instruction, the micro-control
Unit module 202 processed can just control second control unit 2052 and control power supply to the sensor assembly 203 and the number
It powers according to interactive module 204, and obtains 203 collected meteorological data of the sensor assembly, pass through the data interaction mould
The meteorological data got is sent to described information post office by block 204, after the transmission for completing meteorological data, control described the
Two control units 2052 control power module stops powering to the sensor assembly 203 and the data interaction module 204.
As an alternative embodiment mode of the present embodiment, the power module 201 can be periodically to the electricity
Source control module 205 is powered, and under off working state, the power module 201 is not powered to the energy supply control module 205, this
When, the meteorological data collection node is in standby, to save electric energy.When power module 201 controls mould to the power supply
It when block 205 is powered, powers first to first control unit 2051, first control unit 2051 is to the microcontroller
Unit module 202 is powered, at this point, the micro-control unit module 202 is in wake-up states, the micro-control unit module 202
It controls second control unit 2052 to power to the sensor assembly 203 and the data interaction module 204 respectively, make
The sensor assembly 203 and the data interaction module 204 are in wake-up states (i.e. working condition), the sensor assembly
203 acquisition environment weather Data Concurrents are sent to the micro-control unit module 202, and are controlled by the micro-control unit module 202
It makes the data interaction module 204 and the meteorological data got transmission is sent to information post office by corresponding base station.Complete
After the transmission of meteorological data, the power module stops powering to the energy supply control module 205, at this point, the microcontroller
Unit module 202 states sensor assembly 203 and the data interaction module 204 (i.e. off working state) in a dormant state.
In this way, electric energy can be saved, to a certain extent to extend the service life of the meteorological data collection node.
As the alternative embodiment of the application, the data interaction module is sent to by the meteorological data got
During described information post office, the communication link with described information post office is being established, and will get by the communication link
Meteorological data be sent to described information post office after, can make the communication link continue within a preset period of time keep connection shape
State, and after preset time period, disconnect the communication link.During the communication link keeps connection status, institute
The meteorological data that the micro-control unit module is sent can be sent to information post office by stating data interaction module, or by information by
It is sent to the micro-control unit module in the access request of transmission, data transmission of every progress is avoided and is just once led to
Building and removing for letter link, to save electric energy, extends the service life of the meteorological data collection node.
As the alternative embodiment of the application, after disconnecting the communication link, the micro-control unit module
The second control unit control power supply can be controlled to stop powering to the sensor assembly and the data interaction module.
As the alternative embodiment of the application, the meteorological data collection node includes at least one of following：
Temperature sensor, humidity sensor, air velocity transducer, wind transducer, illuminance sensor, rain sensor and
Baroceptor.Sensor in the meteorological data collection node has common bottom plate and interface, to facilitate meteorological data to adopt
Collect the change of the increase and decrease and type of node.
As the alternative embodiment of the application, the meteorological data collection node further includes physical quantity data conversion mould
Block, the physical quantity data conversion module is by BP algorithm to the collected physical quantity data of meteorological data collection node into line
Property return, make the physical quantity data with number magnitude relation it is corresponding.BP neural network substantially realize one it is defeated from being input to
The mapping function gone out, mathematical theory prove that three layers of neural network can approach any non-linear continuous letter with arbitrary accuracy
Number.The learning process of BP neural network is divided into the forward-propagating process of information and two stages of back-propagation process of error.Outside
Neuron of the signal through input layer, hidden layer of portion's input, which is successively handled, to be traveled to forward output layer and provides result.If defeated
Go out layer and cannot get desired output, be then transferred to reverse communication process, error edge was coupled originally between actual value is exported with network
Access returns, and by changing the contact weights of each layer neuron, so that error is reduced, is then transferred to forward-propagating process again, repeatedly
Iteration, until error is less than specified value.By taking a three-layer network (see Fig. 8) as an example, network is by N number of input neuron, K
A hidden neuron, M output neuron composition, O2pmAnd O1pkThe respectively output valve of output layer and hidden layer, w2kmAnd w1nkPoint
Not Wei hidden layer to output layer and input layer to the connection weight of hidden layer, if input learning sample is xpn, corresponding hope output
Value is tpm。
Steps are as follows for canonical algorithm：
(1) weights are initialized, learning rate μ, allowable error ε are set, maximum iteration sets cycle step number i=0.
(2) positive to calculate：
By p-th of sample (Xp={ xp1...xpN) be sequentially input in network, O1 is calculated separately as the following formulapkAnd O2pm：
Activation primitive is frequently with S type sigmoid functions：
(3) mean square error is calculatedIf E≤ε, stops iteration, otherwise execute next step.
(4) backwards calculation：Calculate the knots modification of weights.Formula is as follows：
And
-δpm(i)=(tpm-O2pm(i))O2pm(i)(1-O2pm(i)) (5)
Change weights：
w1nk(i+1)=w1nk(i)+Δw1nk(i+1) (7)
w2km(i+1)=w2km(i)+Δw2km(i+1) (8)
(5) i=i+1 is set, is returned (2).
The three layers of BP network models realized by above-mentioned algorithm are defeated by an input layer unit, three hiding layer units and one
Go out layer unit composition, the model that physical quantity recurrence is carried out with meteorological data collection node is consistent, and includes 6 weights and 4 altogether
A output valve.Work as data as the data pair for carrying out BP algorithm study according to the data pair of the AD values of measurement and actual value composition
It can be deleted when being relatively closer to, it is final to determine that 20 groups are used as learning data to carrying out BP parameter learnings, are calculated BP parameters, then lead to
Cross the standard parameter that order setting allows meteorological data collection node that the BP parameters that study is arrived are returned as physical quantity.
By above-mentioned neural network model, it is corresponding with digital magnitude relation that physical quantity data may be implemented.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from foregoing invention design, it is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical solutions of arbitrary combination and formation.Such as features described above and (but not limited to) disclosed herein have it is similar
The technical characteristic of function is replaced mutually and the technical solution that is formed.
Claims (10)
1. a kind of distributed Design of meteorological data collection, which is characterized in that including：
Sensing layer, network layer and application layer；
The sensing layer includes multiple information post offices, and multiple meteorological data collection sections with the communication connection of each information post office
Point, the meteorological data collection node are summarized collected meteorological data to institute by base station for acquiring meteorological data
Information post office is stated, described information post office is used to the meteorological data received being sent to the network layer；
The network layer includes multiple gateways, and the server being connect with multiple gateway communications, the gateway are used for
Protocol conversion is carried out to the meteorological data received, and the meteorological data after protocol conversion is reported into the server, it is described
Server is for storing the meteorological data that the gateway reports；
The application layer includes the mobile terminal being connect with the server communication, is stored in the mobile terminal and the clothes
Business device carries out the software program of data interaction, and the meteorological number stored in the server can be obtained by the software program
According to, and shown in the mobile terminal.
2. Design of meteorological data collection according to claim 1, which is characterized in that the meteorological data collection node is at bee
Nest shape is distributed in around the base station.
3. Design of meteorological data collection according to claim 1, which is characterized in that the meteorological data collection node includes
Power module, micro-control unit module, sensor assembly and data interaction module, the power module respectively with the microcontroller
Unit module, the sensor assembly and data interaction module electrical connection, for the micro-control unit module, described
Sensor assembly and data interaction module power supply, the micro-control unit module respectively with the sensor assembly and described
Data interaction module communicates to connect, and for handling the collected data of the sensor assembly, and passes through the data
Interactive module carries out data interaction with described information post office.
4. Design of meteorological data collection according to claim 3, which is characterized in that further include：
Energy supply control module, the energy supply control module include the first control unit and the second control unit, the power module
By first control unit to the micro-control unit module for power supply, by second control unit respectively to the biography
Sensor module and data interaction module power supply, second control unit are communicated to connect with the micro-control unit module,
The micro-control unit module controls power supply to the sensor assembly and the data interaction by second control unit
The power supply of module.
5. Design of meteorological data collection according to claim 4, which is characterized in that the only micro-control unit module connects
After receiving meteorological data acquisition instruction, the micro-control unit module can just control second control unit and control power supply to institute
Sensor assembly and data interaction module power supply are stated, and obtains the collected meteorological data of the sensor assembly, is passed through
The meteorological data got is sent to described information post office by the data interaction module, after the transmission for completing meteorological data,
The second control unit control power supply is controlled to stop powering to the sensor assembly and the data interaction module.
6. Design of meteorological data collection according to claim 5, which is characterized in that the data interaction module will obtain
To meteorological data be sent to described information post office during, establish with the communication link of described information post office, and pass through institute
It states after the meteorological data got is sent to described information post office by communication link, the communication link can be made to continue default
Connection status is kept in period, and after preset time period, disconnects the communication link.
7. Design of meteorological data collection according to claim 6, which is characterized in that after disconnecting the communication link, institute
Micro-control unit module control the second control unit control power supply is stated to stop handing over to the sensor assembly and the data
Mutual module for power supply.
8. Design of meteorological data collection according to claim 1, which is characterized in that the meteorological data collection node includes
At least one of below：
Temperature sensor, humidity sensor, air velocity transducer, wind transducer, illuminance sensor, rain sensor and air pressure
Sensor.
9. Design of meteorological data collection according to claim 8, which is characterized in that in the meteorological data collection node
Sensor has common bottom plate and interface.
10. Design of meteorological data collection according to claim 8, which is characterized in that the meteorological data collection node is also
Including physical quantity data conversion module, the physical quantity data conversion module acquires meteorological data collection node by BP algorithm
The physical quantity data arrived carry out linear regression, keep the physical quantity data corresponding with digital magnitude relation.
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| CN115297378A (en) * | 2022-08-02 | 2022-11-04 | 广东海洋大学 | Distributed marine meteorological information acquisition system |
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