CN108061712A - For the control method of wireless sensor network - Google Patents
For the control method of wireless sensor network Download PDFInfo
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- CN108061712A CN108061712A CN201711244346.6A CN201711244346A CN108061712A CN 108061712 A CN108061712 A CN 108061712A CN 201711244346 A CN201711244346 A CN 201711244346A CN 108061712 A CN108061712 A CN 108061712A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
- G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
- G01D3/0365—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves the undesired influence being measured using a separate sensor, which produces an influence related signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/08—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring variation of an electric variable directly affected by the flow, e.g. by using dynamo-electric effect
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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Abstract
The present invention relates to network control technologies, in order to solve in present wireless sensor network control method, due to launching the problem of sensor unit in the node of quickwater is affected being subject to be susceptible to damage after the impact of current to water quality detection result, provide a kind of control method for wireless sensor network, the wireless sensor network of use includes master controller and multiple nodes, and node includes Main Control Unit, sensor unit and wireless communication unit；Including data acquisition, data transfer and state switch contents, wherein：Sensor unit is provided with the shell of hollow out, and rotatable impeller is equipped on shell, and magnetoelectric tachometric transducer is provided on impeller, and rotating speed acquisition is further included in data acquisition content.
Description
Technical field
The present invention relates to network control technologies, are specially a kind of control method for wireless sensor network.
Background technology
The Three Gorges Projects is super-huge hydraulic engineering highly visible.With making smooth advances for Three Gorges Projects, reservoir area stores
Water increases, but since the self-purification capacity of water body reduces, the water environment situation of reservoir area is just being in the trend progressively deteriorated, reservoir area
The safety problem of water environment has become the hot spot of domestic and international extensive concern.The water environment safety issue concerns of reservoir area of Three Gorges arrive
The water safety of reservoir area and In Middle And Lower Reaches of Changjiang River, project of South-to-North water diversion it is smooth implement, the ecological safety of the Yangtze river basin with
And the success or failure of Three Gorges Projects, it is more closely related with the sustainable development of entire China.
In order to realize the monitoring water environment to reservoir area of Three Gorges, environmental monitorings at different levels are established in succession in reservoir area of Three Gorges
It stands.Monitoring in view of the water environment situation to reservoir area of Three Gorges is a very long process, moreover, because Three Gorges Reservoir storage capacity
Greatly, among being chronically at immersion due to Three Gorges two sides massif lower part, the frequency of landslide, landslide and mud-rock flow occurs
It increased, and the inconvenient mankind reach, and therefore, in Water Environment of Three Gorges monitoring, have selected large-scale wireless sensing
Device network, by launching substantial amounts of wireless sensor node in reservoir area of Three Gorges, the side that passes through wireless communication using each node
The data collected are transferred back to control centre by formula, are monitored in real time so as to the Characteristics of Water Environment reached to reservoir area of Three Gorges
Purpose.
The wireless sensor network used in Water Environment of Three Gorges monitoring, abbreviation WSN, by being deployed in monitoring region
Substantial amounts of cheap microsensor node composition, passes through the network system of the self-organizing of a multi-hop of communication formation
System the purpose is to collaboratively perceive, gather and handle the information of perceived object in network's coverage area, and is sent to observation
Person.Sensor, perceptive object and observer constitute three elements of wireless sensor network, wherein wireless sensor network
Node is generally made of four processor, wireless communication, sensor and power supply modules, and since node is deployed in physical features danger more
High, unattended region, if after also meaning that the node failure at this, its maintenance cost needs are very high, therefore,
In order to realize the operating cost for reducing wireless sensor network, it is necessary to realize the good operation of wireless sensor network, and be
Ensure the good operation of wireless sensor network, it is necessary to which the problem solved is how to realize wireless sensor network section
The low-power consumption of point.
Authorization Notice No. is to disclose a kind of wireless biography based on state machine in the patent of invention file of CN103298087B
Sensor network node low power consumption method, wireless sensor network node are connected including Main Control Unit and main control unit
Sensor unit, wireless communication unit and energy supply unit, wherein sensor unit include digital transducer and simulation passes
Sensor, digital transducer, which includes, starts measures conversion, measures conversion, transformation result reading, idle and five kinds of work of dormancy
State, analog sensor include dormancy, power-up, AD conversion, transformation result four kinds of working conditions of reading, and wireless communication unit includes
Three kinds of wireless transmission, wireless receiving and dormancy working conditions, main control unit have been divided into dormant state and have enlivened two kinds of work shapes of state
State；The active time of wireless sensor network node is shortened by the working condition for rationally controlling single node each unit to reduce
The overall power of wireless sensor network node, so as to ensure the good operation of wireless sensor network.Then, due to Three Gorges water
The geographical feature of domain uniqueness, the water flow velocity for causing local waters is larger, and flow velocity is up to 3 meter per seconds, and it is known that for same
For one object, movement velocity is faster, and kinetic energy is bigger, that is to say, that for launching the sensing at the different position of Three Gorges waters
The impact for the current that device is subject to is different, and the water impact that the sensor in the big region of current is subject to is much bigger, is being grown
After the water impact of time, sensor is just present with the damage even situation of damage, it is necessary to often replace, moreover, water flows through
Greatly, the testing result to water quality can be also influenced, so, increases the management cost to wireless sensor network, equally
The monitoring result to water quality can be reduced.Therefore, in order to improve detection result of the wireless sensor network to water environment, while also it is
Reduce the management cost to wireless sensor network, it is necessary to propose a kind of new controlling party for wireless sensor network
Method.
The content of the invention
The invention is intended to provide a kind of control method for wireless sensor network, to solve present wireless senser
It is easy after the impact of current is subject to due to launching the sensor unit in the node of quickwater in network control method
The problem of appearance is damaged and affected to water quality detection result.
The present invention provides base case：For the control method of wireless sensor network, the wireless sensor network of use
Network includes master controller and multiple nodes, and node includes Main Control Unit, sensor unit and wireless communication unit；
Main control unit includes dormant state and enlivening two kinds of working conditions of state, for master controller in a dormant state when
Carry out the task that time-consuming is not required master controller to be in active state again；
Sensor unit includes digital transducer, and sensor unit includes starting measures conversion, measures conversion, Change-over knot
Fruit is read, idle and five kinds of working conditions of dormancy, wherein, sensor unit is according to startup measures conversion, measures conversion, Change-over knot
The order that fruit is read performs data acquisition session, and idle state and dormant state can be in the arbitrary positions between above-mentioned execution sequence
It is carried out between putting, the duration of idle state and dormant state is arbitrary；Start measures conversion and conversion results read two kinds of works
Make the control of state main controller unit；
Wireless communication unit includes three kinds of wireless transmission, wireless receiving and dormancy working conditions, wherein wireless transmission and nothing
Line reception state main controller unit controls；
Including herein below：
Data acquisition：Sensor unit carries out startup measures conversion, measures conversion, transformation result read work successively, and
Obtained detection data will be read to send, idle state and dormant state are interspersed in any position between said sequence；
Data transfer：After the detection data that wireless communication unit is sent in receiving sensor unit, which is sent out
Give master controller；Dormancy working condition is located at any position of above two state；
State switches：The wireless transmission working condition of Main Control Unit control wireless communication unit and wireless receiving work
The switching of state also controls the switching of the startup measures conversion working condition and switching result read work state of sensor unit
It carries out；
Wherein：
Sensor unit is provided with the shell of hollow out, and rotatable impeller is equipped on shell, magnetoelectricity is provided on impeller
Formula speed probe is communicated to connect with wireless communication unit；
It is further included in data acquisition content：
Rotating speed gathers：When by sensor unit, impeller starts to rotate under the action of current current, magnetoelectric tachometric
Sensor starts to generate voltage, and voltage signal is exported, and wireless communication unit believes the voltage after voltage signal is received
Number master controller is transferred to, master controller calculates voltage signal, and the flow velocity of the water obtained after calculating is shown.
The operation principle of base case：Sensor unit is for being detected water quality, in detection process, sensing
Then device unit starting measures conversion starts to measure water quality conversion, after completing to measures conversion, carry out transformation result
Read operation, obtains detection data after transformation result read operation is completed, which is sent to nothing by sensor unit
Line communication unit, wireless communication unit are sent to master controller, completion pair after the detection data are received, by the detection data
The detection of water quality；
And in this process, for launching in the sensor unit in The turbulent river crashes its way through basin, in current by sensing
When unit, sensor unit is subject to the impact of current to be very big, it is contemplated that the detection to water quality is a long-term work
Journey, it is therefore desirable to ensure that sensor unit can be with long-time service, also meaning that needs to reduce the water that sensor unit is subject to
Stream impact, therefore, in the present solution, being provided with the shell of hollow out to sensor, on the shell there is provided impeller, shell is for reality
The installation of existing impeller, and the setting of hollow out is then to ensure that sensor unit can touch water, is normally carried out detection work；
Since current are when by impeller, impeller will start to rotate under the promotion of current, according to the conservation of energy
Law is it is recognised that the rotation of impeller is the effect because current, that is to say, that during wheel rotation, the one of current
For the kinetic energy of impeller, once the kinetic energy of current reduces, also just represent the speed of current will lower, and pass for part kinetic energy conversion
The impact for the current that sensor cell receives will also reduce, and also just extend the service life of sensor unit；
Meanwhile during wheel rotation, the magnetoelectric tachometric transducer installed on impeller is started to work, wheel rotation
Afterwards, magnetoelectric tachometric transducer generates voltage, and then voltage signal is transferred to wireless communication unit, and wireless communication unit is connecing
It receives and the voltage signal is transmitted to master controller after voltage signal, since for the impeller of known quality, impeller turns
Dynamic speed is proportional with the speed of current, that is to say, that we are can to learn current according to the rotating speed of impeller
Speed, therefore, magnetoelectric tachometric transducer is mounted with to impeller for detecting the rotating speed of impeller, master controller turns magneto-electric
The voltage signal that fast sensor generates under the action of current is calculated, and the flow velocity of the water obtained after calculating is shown
Show, finally draw the speed of current, complete the measure to the flow velocity of water.
The advantageous effect of base case is：Compared with existing control method, by sensor unit in 1. this programme
Impeller is installed, the water impact being subject to using impeller reduction sensor unit ensure that the service life of sensor unit, so as to
Reduce the maintenance cost to wireless sensor network；
2. installation impeller while part water flow dynamic energy consume, also with magnetoelectric tachometric transducer under the action of reality
Now to the detection of the water velocity at this, that is to say, that impeller also plays the effect to sensor unit protection while also rises
The effect to water velocity detection is arrived；And magnetoelectric tachometric transducer is selected, it is in order to real using current driving wheel rotation
The startup of existing magnetoelectric tachometric transducer, without additionally setting power supply, also saves on monitoring cost.
Preferred embodiment one：Based on scheme it is preferred, rotating speed acquisition in, current by impeller when, along
Diversion trench flowing on impeller.Advantageous effect：Water conservancy diversion is carried out to current using the diversion trench set on impeller, it is ensured that impeller
The smooth rotation under the action of current.
Preferred embodiment two：Preferably one it is preferred, rotating speed acquisition in, current pass through wheel nose installation mistake
Impeller is flowed through after strainer.Advantageous effect：Due to that can contain plurality of impurities, such as weeds, stone in water, these can be with the stream of dampening
Dynamic to reach at impeller, so as to be damaged to impeller, therefore the filter screen of wheel nose installation can be by these impurity mistakes
It filters, so as to ensure the service life of impeller, reduces the maintenance cost of wireless sensor network.
Preferred embodiment three：Preferably one it is preferred, rotating speed acquisition in, impeller by bolt be mounted on sensor
On the shell of unit.Advantageous effect：Since impeller needs replacing after having used long, realize that impeller is passing using bolt
Setting in sensor cell is conveniently replaceable operation.
Preferred embodiment four：Based on scheme it is preferred, the impeller that uses is unshrouded impeller beneficial to imitating in rotating speed acquisition
Fruit：Unshrouded impeller, which has, to be simple to manufacture, is easy to clean.
Description of the drawings
Fig. 1 is FB(flow block) of the present invention for the control method embodiment of wireless sensor network.
Specific embodiment
Below by the further details of explanation of specific embodiment：
For the control method of wireless sensor network, the wireless sensor network of use includes master controller and multiple sections
Point, node include Main Control Unit, sensor unit and wireless communication unit, as shown in Figure 1；Water quality monitoring in the present embodiment
Be provided centrally with carrying the computer of master controller, main control unit includes dormant state and enlivening two kinds of working conditions of state, for
Master controller in a dormant state when carry out that time-consuming is not required master controller to be in the task of active state again；
Sensor unit includes digital transducer, and sensor unit includes starting measures conversion, measures conversion, Change-over knot
Fruit is read, idle and five kinds of working conditions of dormancy, wherein, sensor unit is according to startup measures conversion, measures conversion, Change-over knot
The order that fruit is read performs data acquisition session, and idle state and dormant state can be in the arbitrary positions between above-mentioned execution sequence
It is carried out between putting, the duration of idle state and dormant state is arbitrary；Start measures conversion and conversion results read two kinds of works
Make the control of state main controller unit；
Wireless communication unit includes three kinds of wireless transmission, wireless receiving and dormancy working conditions, wherein wireless transmission and nothing
Line reception state main controller unit controls；
Including herein below：
Data acquisition：Sensor unit carries out startup measures conversion, measures conversion, transformation result read work successively, and
Obtained detection data will be read to send, idle state and dormant state are interspersed in any position between said sequence；
Data transfer：After the detection data that wireless communication unit is sent in receiving sensor unit, which is sent out
Give master controller；Dormancy working condition is located at any position of above two state；
State switches：The wireless transmission working condition of Main Control Unit control wireless communication unit and wireless receiving work
The switching of state also controls the switching of the startup measures conversion working condition and switching result read work state of sensor unit
It carries out；
Wherein：
Sensor unit is provided with the shell of hollow out, and rotatable impeller is equipped on shell, in rotating speed acquisition, impeller
By bolt installation on the shell, magnetoelectric tachometric transducer is provided on impeller, is further included in data acquisition content：
Rotating speed gathers：When by sensor unit, impeller starts to rotate under the action of current current, magnetoelectric tachometric
Sensor starts to generate voltage, and voltage signal is exported, and wireless communication unit believes the voltage after voltage signal is received
Number master controller is transferred to, master controller calculates voltage signal, and the flow velocity of the water obtained after calculating is shown；
Wherein current flow when by impeller along the diversion trench on impeller, and pass through the mistake of wheel nose installation in current
Impeller is flowed through after strainer, the impeller used in the present embodiment is unshrouded impeller.
Sensor unit is for being detected water quality, such as the temperature, humidity and turbidity of water, in detection process
In, sensor unit starts measures conversion, then starts to measure water quality conversion, after completing to measures conversion, carries out
Transformation result read operation obtains detection data after transformation result read operation is completed, and sensor unit is by the detection data
Wireless communication unit is sent to, wireless communication unit is sent to main control after the detection data are received, by the detection data
Device completes the detection to water quality；Above-mentioned sensor unit, Main Control Unit, master controller, wireless communication unit are
It discloses in the patent of invention file that Authorization Notice No. is CN103298087B, therefore is repeated no more in the present invention；In the present embodiment
Wireless sensor network each node hardware circuit mainly by JN5139 radio-cells, DS18B20 temperature sensor interfaces,
SHT11 Temperature Humidity Sensors interface, optical sensor interface, low pressure difference linearity stabilizer (LD0) and UART interface are formed, corresponding
Sensor unit then using measurement water temperature temperature sensor, measure water temperature and humidity Temperature Humidity Sensor and
Measure the optical sensor of the turbidity of water；Specially：JN5139 radio-cells pass through DS18B20 temperature sensor interfaces and temperature
Sensor connects, and temperature sensor is DS18B20 temperature sensors in the present embodiment；JN5139 radio-cells pass through SHT11 temperature
Humidity sensor interface is connected with Temperature Humidity Sensor, is selected in the present embodiment with small, strong antijamming capability, cost performance
The SHT11 Temperature Humidity Sensor interfaces of the advantages that high are used as Temperature Humidity Sensor；JN5139 radio-cells pass through light sensing
Device interface is connected with optical sensor, and intensity of illumination is measured as optical sensor using photo resistance in the present embodiment, from
And achieve the purpose that the turbidity measurement to water；
And in this process, for launching in the sensor unit in The turbulent river crashes its way through basin, in current by sensing
When unit, sensor unit is subject to the impact of current to be very big, it is contemplated that the detection to water quality is a long-term work
Journey, it is therefore desirable to ensure that sensor unit can be with long-time service, also meaning that needs to reduce the water that sensor unit is subject to
Stream impact, therefore, in the present solution, reducing effect of the current to the impact of sensor unit using being realized there is provided the method for impeller
Fruit；
Since current are when by impeller, impeller will start to rotate under the promotion of current, according to the conservation of energy
Law is it is recognised that the rotation of impeller is the effect because current, that is to say, that during wheel rotation, the one of current
Part kinetic energy has also been converted to the kinetic energy of impeller, once the kinetic energy of current reduces, also just represent the speed of current will subtract
Low, the impact for the current that sensor unit receives will also reduce, and also just extend the service life of sensor unit；
Meanwhile during wheel rotation, the magnetoelectric tachometric transducer installed on impeller is started to work, wheel rotation
Afterwards, magnetoelectric tachometric transducer generates voltage, and then voltage signal is transferred to wireless communication unit, and wireless communication unit is connecing
It receives and the voltage signal is transmitted to master controller after voltage signal, since for the impeller of known quality, impeller turns
Dynamic speed is proportional with the speed of current, that is to say, that we are can to learn current according to the rotating speed of impeller
Speed, therefore, magnetoelectric tachometric transducer is mounted with to impeller for detecting the rotating speed of impeller, finally draws the speed of current
Degree.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description, technical field that the present invention belongs to is all before one skilled in the art know the applying date or priority date
Ordinary technical knowledge can know the prior art all in the field, and with using routine experiment hand before the date
The ability of section, one skilled in the art with reference to self-ability can improve and implement under the enlightenment that the application provides
This programme, some typical known features or known method should not implement the application as one skilled in the art
Obstacle.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, it can also make
Go out several modifications and improvements, these should also be considered as protection scope of the present invention, these all do not interfere with the effect that the present invention is implemented
Fruit and practical applicability.The scope of protection required by this application should be based on the content of the claims, the tool in specification
The records such as body embodiment can be used for the content for explaining claim.
Claims (5)
1. for the control method of wireless sensor network, the wireless sensor network of use includes master controller and multiple sections
Point, the node include Main Control Unit, sensor unit and wireless communication unit；
The main control unit includes dormant state and enlivening two kinds of working conditions of state, for master controller in a dormant state when
Carry out the task that time-consuming is not required master controller to be in active state again；
The sensor unit includes digital transducer, and the sensor unit includes starting measures conversion, measures conversion, turn
Result reading, idle and five kinds of working conditions of dormancy are changed, wherein, the sensor unit turns according to startup measures conversion, measurement
Change, the order that transformation result is read performs data acquisition session, idle state and dormant state can above-mentioned execution sequence it
Between any position between carry out, the duration of the idle state and the dormant state is arbitrary；Start measures conversion and
Conversion results read two kinds of working conditions and are controlled by the Main Control Unit；
The wireless communication unit includes three kinds of wireless transmission, wireless receiving and dormancy working conditions, wherein wireless transmission and nothing
Line reception state is controlled by the Main Control Unit；
Including herein below：
Data acquisition：Sensor unit carries out startup measures conversion, measures conversion, transformation result read work successively, and will read
The detection data obtained are sent, and idle state and dormant state are interspersed in any position between said sequence；
Data transfer：After the detection data that wireless communication unit is sent in receiving sensor unit, which is sent to
Master controller；Dormancy working condition is located at any position of above two state；
State switches：Main Control Unit controls the wireless transmission working condition of wireless communication unit and wireless receiving working condition
Switching, also control the startups measures conversion working condition of sensor unit and the result read work state of transferring be switched into
Row；
It is characterized in that：
The sensor unit is provided with the shell of hollow out, and rotatable impeller is equipped on the shell, is set on the impeller
Magnetoelectric tachometric transducer is equipped with, is connected with the wireless communication unit, is further included in the data acquisition content：
Rotating speed gathers：When by sensor unit, impeller starts to rotate under the action of current current, the magnetoelectric tachometric
Sensor starts to generate voltage, and voltage signal is exported, and wireless communication unit is after the voltage signal is received by the electricity
Pressing signal transmission, the master controller calculates the voltage signal to master controller, and by the water obtained after calculating
Flow velocity is shown.
2. the control method according to claim 1 for wireless sensor network, it is characterised in that：It is adopted in the rotating speed
It concentrates, current flow when by impeller along the diversion trench on impeller.
3. the control method according to claim 2 for wireless sensor network, it is characterised in that：It is adopted in the rotating speed
It concentrates, current flow through impeller after the filter screen that wheel nose is installed.
4. the control method according to claim 3 for wireless sensor network, it is characterised in that：It is gathered in rotating speed
In, impeller is mounted on by bolt on the shell of sensor unit.
5. the control method according to claim 1 for wireless sensor network, it is characterised in that：It is adopted in the rotating speed
The impeller used is concentrated as unshrouded impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244346.6A CN108061712A (en) | 2017-11-30 | 2017-11-30 | For the control method of wireless sensor network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244346.6A CN108061712A (en) | 2017-11-30 | 2017-11-30 | For the control method of wireless sensor network |
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| Publication Number | Publication Date |
|---|---|
| CN108061712A true CN108061712A (en) | 2018-05-22 |
Family
ID=62136255
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711244346.6A Pending CN108061712A (en) | 2017-11-30 | 2017-11-30 | For the control method of wireless sensor network |
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| CN (1) | CN108061712A (en) |
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Application publication date: 20180522 |