CN108964236A - The tracking solar energy collecting system certainly of facing sensing net application - Google Patents
The tracking solar energy collecting system certainly of facing sensing net application Download PDFInfo
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- CN108964236A CN108964236A CN201810467436.XA CN201810467436A CN108964236A CN 108964236 A CN108964236 A CN 108964236A CN 201810467436 A CN201810467436 A CN 201810467436A CN 108964236 A CN108964236 A CN 108964236A
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 93
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 93
- 238000007600 charging Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 230000005611 electricity Effects 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims description 32
- 230000000087 stabilizing effect Effects 0.000 claims description 19
- 238000005286 illumination Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of tracking solar energy collecting system certainly of facing sensing net application, including miniature control chip, energy collection module and state detection module, energy collection module includes solar panel, solar charging controller, lithium battery and pose adjustment component, solar panel connects lithium battery by sun energy charge controller, solar panel is set on pose adjustment component, pose adjustment component connects miniature control chip, state detection module includes electric power detection unit, light intensity detection module and wind speed measurement controller, energy collection module provides electricity for the solar energy collecting system of tracking certainly entirely towards Sensor Network application, energy collection module simultaneously exports electric energy to sensor node.The electric energy that the system is converted by using solar energy solves wireless sourceless sensor network node powerup issue, and energy conservation and environmental protection can greatly prolong the battery life of current consuming apparatus, improves the stability and reliability of equipment.
Description
Technical field
The present invention relates to a kind of tracking solar energy collecting systems certainly of facing sensing net application.
Background technique
Wireless sensor network at this stage is usually to be integrated with the network system of monitoring, control and wireless communication, section
Point huge number, Node distribution are intensive.Current node is powered usually using minicell, and energy supply is limited.And it is limited
Energy supply has seriously affected the large-scale promotion application of sensor network.Energy effectively is obtained from external environment, for low
The wireless sensor network of power consumption is of great significance, and can extend node lifetime again while reduce network operation cost.By
This is it is found that one efficient, reliable energy harvester of design seems particularly necessary.
As the environmental consciousness of people is more and more stronger, the application of photovoltaic generating system is generally paid attention to by society, reason
It is that it can provide nexhaustible sustainable regenerative electric energy, and shadow hardly is caused to natural environment for the survival of mankind
It rings.Solar energy collecting transformation efficiency at present on the market is high not enough, except the limitation of photovoltaic power generation material, more the one of key
A factor is that there is intermittent, the ever-changing spatial distribution features of illumination for sunlight, and the solar panel of fixed position cannot
The energy of sunlight is received to the maximum extent, while relatively high power generator cost is also the weight for restricting its large-scale application
Want factor.Developing has the sunlight servomechanism of practical value to reduce cost, is to promote the widely applied main way of solar energy
One of diameter.
Utilize and realize extensively for wireless sensor network there are still power demands, how by solar powered technology with
Wireless sensor network combines, and realizes that wireless sensor network efficiently uses solar energy, and for extending, node lifetime, reduction is wireless
The maintenance cost of sensor has a very important significance, therefore this has become the hot spot of sensor network field research.
Summary of the invention
The object of the present invention is to provide a kind of applications of facing sensing net from tracking solar energy collecting system, for sensor
The low disadvantage of node energy collection efficiency, can be improved the photoelectric conversion efficiency of solar collector, solves to a certain extent
The powerup issue of wireless sensor network node effectively extends the sensor network nodes service life, improves the stabilization of network node
Property and reliability, reduce because caused by replacing, safeguarding sensor network nodes node data lose problem and human resources damage
Consumption problem.
The technical solution of the invention is as follows:
A kind of application of facing sensing net from tracking solar energy collecting system, including miniature control chip, energy collection module and
State detection module, energy collection module include solar panel, solar charging controller, lithium battery and pose adjustment group
Part, lithium battery use rechargeable lithium battery, and solar panel connects lithium battery, solar battery by sun energy charge controller
Plate is set on pose adjustment component, and pose adjustment component connects miniature control chip, and state detection module includes electric power detection list
Member, light intensity detection module and wind speed measurement controller, electric power detection unit is separately connected lithium battery and miniature control chip, miniature
Control chip is also connected with light intensity detection module, and wind speed measurement controller is connect with miniature control chip, and energy collection module is whole
A facing sensing net application provides electricity from tracking solar energy collecting system, and energy collection module is simultaneously exported to sensor node
Electric energy.
Further, energy collection module further includes battery voltage sensing module, and lithium battery passes through battery voltage detection mould
Block connects solar charging discharging controller.
Further, energy collection module further includes Voltage stabilizing module, and the input port of Voltage stabilizing module connects solar charging/discharging
The load outputs of controller, the output port of Voltage stabilizing module provide the tracking sun certainly that 5 volts of power supplys are the application of facing sensing net
Energy collection system electricity, the output port of Voltage stabilizing module are simultaneously powered for external sensor node.
Further, light intensity detection module converts the difference information of illumination to the difference information of voltage analog, miniature
Control chip is read after difference information calculated, and obtains angle information of the solar panel with respect to sunlight light, appearance
State adjusts after component uses steering engine, miniature control chip to receive light intensity difference signal and sends pose adjustment signal to pose adjustment group
Part, pose adjustment component are modified according to pitch angle and horizontal angle of the adjustment signal to solar panel.
Further, solar charging discharging controller and controls lithium by the output voltage control of lithium battery in safe range
Battery charges while output, realizes the charge and discharge simultaneity of battery, and the solar charging/discharging control when lithium battery voltage is too low
Device processed can cut off the output of battery, and protection battery prevents under-voltage.
Further, under the premise of intensity of illumination reaches given threshold, into tracking mode:
Intensity of illumination is converted into analog quantity by light-sensitive element by subsidiary light intensity detection module on S11, solar panel,
And the miniature measurable range of control chip is contracted to analog quantity is proportional by conducting wire and divider resistance；
S12, miniature control chip will acquire the voltage value of photosensitive module and are translated into digital quantity by analog-digital converter,
The size that four orientation intensities of illumination are obtained after being handled on miniature control chip relatively, is judged too by the difference of light intensity
Inflection point of the positive energy solar panel relative to sun light direct beam direction；
S13, obtain solar panel relative to the miniature control chip after the deflection angle in sun light direct beam direction to steering engine send out
Send control signal that it is made to carry out angle modification to solar panel.
Further, the realization process of energy collection module is,
After S21, sunlight are irradiated to solar panel, the output end of solar panel generates potential difference, through solar energy charge and discharge
Electric controller carries out pressure stabilizing and is followed by lithium battery charging；
S22, trickle charge is carried out when the voltage value of lithium battery rises to saturation；
The electric energy that S23, solar charging discharging controller are got using solar panel is that lithium battery interval is filled by PWM wave
Electricity, solar charging discharging controller is using charge control intermittently by the power output of lithium battery to solar charging discharging controller
Delivery outlet, the delivery outlet of solar charging discharging controller are that entirely the solar energy collecting system of tracking certainly towards Sensor Network application mentioning
Power supply volume, and electric energy is exported to sensor node；
S24, miniature control chip read the voltage-mode analog values after partial pressure by ratio reduction voltage circuit, are calculated by the analogue value
Lithium battery virtual voltage, and then the remaining capacity of battery is calculated by lithium battery discharge curve, while battery capacity being exported
To display.
Further, the process that danger early warning control is carried out from tracking solar energy collecting system of facing sensing net application
Are as follows:
S31, wind speed measurement device connect miniature control chip directly by lithium battery power supply, and miniature control chip will be directly from wind
The voltage that fast detector is read carries out given threshold comparison after carrying out signal processing, micro- if wind speed is beyond given threshold
Type control chip is in system protection and disconnects power supply of the lithium battery to steering engine.
S32, when wind speed reduces, the output voltage of wind speed measurement device also decreases, and miniature control chip detects voltage
Timing is opened after being reduced to given threshold or less, if voltage after setting time is waited to be still below given threshold, miniature control core
Piece restores power supply of the lithium battery to steering engine, and solar panel is followed spot again.
Further, electric power detection unit measures electric quantity of lithium battery using voltage detecting method, and miniature control chip utilizes lithium
The size of cell output voltage judges lithium battery remaining capacity, and remaining capacity information is sent to sensor by data line
Node, sensor node carry out the formulation of system power consumption decision；The control unit of miniature control chip and sensor node carries out
The information about power of lithium battery, working condition are sent to sensor node by communication, and receive the control letter from sensor node
Number, the selection of operating mode is completed according to control signal.
Further, the solar charging discharging controller in energy collection module is used to improve the confession of sensor network nodes
Electric mode, the collection efficiency of real-time monitoring solar energy, if high conversion efficiency, that is, solar panel output voltage is more than or equal to 18
Volt, then the solar energy lithium battery on solar panel is that sensor network nodes power and extra electric energy is stored in chargeable lithium
In battery, if the low i.e. solar panel output voltage of transfer efficiency is greater than 15 volts less than 18 volts but still enough sensor network sections
Point work use, then solar energy lithium battery be only sensor network nodes power supply, if solar battery provide not enough power supply with
For node work using being that solar panel output voltage is more than or equal to 15 volts, then sensor network nodes are by chargeable lithium electricity
Pond directly powers, and solar panel collects electricity and supplies rechargeable lithium battery.
The beneficial effects of the present invention are:
One, the tracking solar energy collecting system certainly of this kind of facing sensing net application is solved by using the electric energy that solar energy converts
Wireless sourceless sensor network node powerup issue, energy conservation and environmental protection can greatly prolong the battery life of current consuming apparatus, improve
The stability and reliability of equipment reduce the data loss problem and human resources that may cause by replacement or to maintain equipment
Loss problem.
Two, the present invention, which can be realized, accurately tracks solar azimuth, reaches and accurately controls the inclined of solar panel
The purpose of corner, so that light vertical irradiation be made to improve solar energy collecting efficiency on solar panel, and for high wind this
A kind of harsh weather sets danger early warning control, improves the safety of device.
Three, the present invention has the characteristics that structure is simple, figure is small and exquisite, practical, easy to maintain.
Four, the present invention increases security of system by danger early warning control, reduces the expense of later maintenance.
Detailed description of the invention
Fig. 1 is that the application of facing sensing net of the embodiment of the present invention from tracking solar energy collecting system illustrates schematic diagram；
Fig. 2 is the connection schematic diagram from tracking solar energy collecting system that facing sensing net is applied in embodiment.
Fig. 3 is that the tracking mode from tracking solar energy collecting system that facing sensing net is applied in embodiment illustrates to illustrate
Figure.
Fig. 4 is the realization from energy collection module in tracking solar energy collecting system that facing sensing net is applied in embodiment
Process schematic.
Specific embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment
A kind of tracking solar energy collecting system, such as Fig. 1, including the miniature control chip, energy certainly of the application of facing sensing net
Collection module and state detection module, energy collection module include solar panel, solar charging controller, lithium battery and
Pose adjustment component, lithium battery use rechargeable lithium battery, and solar panel connects lithium battery by sun energy charge controller,
Solar panel is set on pose adjustment component, and pose adjustment component connects miniature control chip, and state detection module includes
Electric power detection unit, light intensity detection module and wind speed measurement controller, electric power detection unit are separately connected lithium battery and miniature control
Coremaking piece, miniature control chip are also connected with light intensity detection module, and wind speed measurement controller is connect with miniature control chip, and energy is received
Collection module is entirely to provide electricity from tracking solar energy collecting system towards Sensor Network application, energy collection module and to sensing
Device node exports electric energy.
The tracking solar energy collecting system certainly of this kind of facing sensing net application, by using the electric energy that solar energy converts, solution
It has determined wireless sourceless sensor network node powerup issue, energy conservation and environmental protection can greatly prolong the battery life of current consuming apparatus, mention
The stability and reliability of high equipment reduce the data loss problem that may cause by replacement or to maintain equipment and manpower money
Problem is lost in source.
Such as Fig. 2, embodiment energy collection module further includes battery voltage sensing module, and lithium battery passes through battery voltage detection
Module connects solar charging discharging controller.Energy collection module further includes Voltage stabilizing module, and the input port of Voltage stabilizing module connects too
The load outputs of positive energy charging-discharging controller, it is the application of facing sensing net that the output port of Voltage stabilizing module, which provides 5 volts of power supplys,
From tracking solar energy collecting system electricity, the output port of Voltage stabilizing module is simultaneously powered for external sensor node.
Energy collection unit is converted solar energy into electrical energy by the photoelectric conversion function of solar panel, via stabilization
It is stored into lithium battery after module and solar charging discharging controller；Electric power detection unit is sent out by monitoring to lithium battery voltage
Miniature control chip is given, miniature control chip, which is computed, obtains battery dump energy；Pose adjustment component receives miniature control
The signal of chip realizes the pose adjustment function to solar panel.
Solar charging discharging controller realize lithium battery charge and discharge accurately control, make lithium battery complete charge and discharge simultaneously into
Capable function；The delivery outlet of solar charging discharging controller is tracking solar energy collecting system certainly entirely towards Sensor Network application
Electricity is provided, and exports electric energy to sensor node.Light intensity detection module is compared by the detection to intensity of illumination obtains battery
Plate needs the angle adjustment information done with respect to sunlight；The wind speed measurement controller moment monitors extraneous wind speed and sends information in real time
To miniature control chip.Miniature control chip is the core of entire energy collection module, is responsible for the various information of processing and regulates and controls to set
Standby state makes the reasonable distribution of the various components realization energy of equipment.
Light intensity detection module converts the difference information of illumination to the difference information of voltage analog, and miniature control chip is read
It gets after difference information calculated, obtains angle information of the solar panel with respect to sunlight light, pose adjustment component
Using steering engine, miniature control chip sends pose adjustment signal to pose adjustment component, posture tune after receiving light intensity difference signal
Whole group part is modified according to pitch angle and horizontal angle of the adjustment signal to solar panel.
Embodiment system, which can be realized, accurately tracks solar azimuth, reaches and accurately controls the inclined of solar panel
The purpose of corner, so that light vertical irradiation be made to improve solar energy collecting efficiency on solar panel, and for high wind this
A kind of harsh weather sets danger early warning control, improves the safety of device.
In embodiment, the output voltage control of lithium battery in safe range, and is controlled lithium by solar charging discharging controller
Battery charges while output, realizes the charge and discharge simultaneity of battery, and the solar charging/discharging control when lithium battery voltage is too low
Device processed can cut off the output of battery, and protection battery prevents under-voltage.
Light intensity detection module is attached on solar panel, and is directly connected with miniature control chip.Energy collection mould
The luminous energy dress that solar panel receives can be changed to electric energy and used for sensor node by block.Electric power detection unit can be read
Lithium battery voltage and remaining capacity are taken, and information about power is sent to by sensor node by the Serial Port Line of miniature control chip.
Electric power detection unit measures electric quantity of lithium battery using voltage detecting method, and miniature control chip exports electricity using lithium battery
The size of pressure judges lithium battery remaining capacity, and remaining capacity information is sent to sensor node by data line, sensing
The formulation of device node progress system power consumption decision；Miniature control chip is communicated with the control unit of sensor node, by lithium
The information about power of battery, working condition are sent to sensor node, and receive the control signal from sensor node, according to control
Signal processed completes the selection of operating mode.
Solar charging discharging controller in the energy collection module of embodiment system is for improving sensor network nodes
Power supply mode, the collection efficiency of real-time monitoring solar energy, if high conversion efficiency, that is, solar panel output voltage be greater than etc.
In 18 volts, then the solar energy lithium battery on solar panel is that sensor network nodes power and can fill the deposit of extra electric energy
In electric lithium battery, if the low i.e. solar panel output voltage of transfer efficiency is greater than 15 volts less than 18 volts but still enough sensor networks
The work of network node uses, then solar energy lithium battery is only sensor network nodes power supply, if the electricity that solar battery provides is not
It is enough to work for node and is more than or equal to 15 volts using i.e. solar panel output voltage, then sensor network nodes is by chargeable
Lithium battery is directly powered, and solar panel collects electricity and supplies rechargeable lithium battery.
Embodiment system can be realized low power consumption high efficiency collection.Solar panel and rechargeable lithium battery and solar energy
Charging-discharging controller is connected, and solar charging discharging controller has pressure stabilizing input, PWM charging output and direct current lithium battery direct-connected defeated
Function out.
In embodiment, such as Fig. 3, under the premise of intensity of illumination reaches given threshold, into tracking mode:
Intensity of illumination is converted into analog quantity by light-sensitive element by subsidiary light intensity detection module on S11, solar panel,
And the miniature measurable range of control chip is contracted to analog quantity is proportional by conducting wire and divider resistance；
S12, miniature control chip will acquire the voltage value of photosensitive module and are translated into digital quantity by analog-digital converter,
The size that four orientation intensities of illumination are obtained after being handled on miniature control chip relatively, is judged too by the difference of light intensity
Inflection point of the positive energy solar panel relative to sun light direct beam direction；
S13, obtain solar panel relative to the miniature control chip after the deflection angle in sun light direct beam direction to steering engine send out
Send control signal that it is made to carry out angle modification to solar panel.The time of makeover process consumption is to be slightly larger than solar battery
On the basis of time needed for deflecting maximum angular.
In embodiment, if the realization process of Fig. 4, energy collection module are,
After S21, sunlight are irradiated to solar panel, the output end of solar panel generates potential difference, through solar energy charge and discharge
Electric controller carries out pressure stabilizing and is followed by lithium battery charging；Since the potential difference that the output end of solar panel generates is unstable
It is fixed, therefore re-charge control port pressure stabilizing need to be passed through, pressure stabilizing is followed by lithium battery to charge for it.
S22, trickle charge is carried out when the voltage value of lithium battery rises to saturation；When lithium battery charges to saturation voltage value
Continue that large current charge is taken to will lead to over-charging of battery, damage probability increases.So when voltage value rises to saturation threshold into
Row pressure stabilizing trickle charge is not more than 280 milliamperes of chargings.Battery life is protected to greatest extent, is extended equipment and is used the time.
The electric energy that S23, solar charging discharging controller are got using solar panel is by PWM wave between lithium battery
It has a rest charging, solar charging discharging controller is using charge control interval by the power output of lithium battery to solar charging/discharging control
The delivery outlet of device, the delivery outlet of solar charging discharging controller are tracking solar energy collecting system certainly entirely towards Sensor Network application
System provides electricity, and exports electric energy to sensor node；
S24, miniature control chip read the voltage-mode analog values after partial pressure by ratio reduction voltage circuit, are calculated by the analogue value
Lithium battery virtual voltage, and then the remaining capacity of battery is calculated by lithium battery discharge curve, while battery capacity being exported
To display.Facilitate observation lithium battery state.
In embodiment, the process that danger early warning control is carried out from tracking solar energy collecting system of facing sensing net application
Are as follows:
S31, wind speed measurement device connect miniature control chip directly by lithium battery power supply, and miniature control chip will be directly from wind
The voltage that fast detector is read carries out given threshold comparison after carrying out signal processing, micro- if wind speed is beyond given threshold
Type control chip is in system protection and disconnects power supply of the lithium battery to steering engine.In embodiment, solar panel by lay flat come
Avoid high wind, so solar panel, which loses holding power, can return to horizontal position to reduce by wind-force after steering engine power-off
Area.
S32, when wind speed reduces, the output voltage of wind speed measurement device also decreases, and miniature control chip detects voltage
Timing is opened after being reduced to given threshold or less, if voltage after setting time is waited to be still below given threshold, miniature control core
Piece restores power supply of the lithium battery to steering engine, and solar panel is followed spot again.
Embodiment system carries out hazard detection control, climate condition can be detected using sensor node, to solar panels
Placement location be adjusted, such as when strong wind, adjustment solar panels are that wind-force forced area is reduced in horizontal position, reduce the energy
The murder risk of collection device.
Embodiment system has the function of danger early warning and self-protective mechanism, utilizes wind speed measurement controller moment monitoring ring
Border wind speed information, and miniature control chip is sent information to, it is adopted at once once the case where environment appearance can threaten system
Take corresponding measure protection system not damaged.Embodiment is directed to the solar tracker built of sensing network, be able to solve because
The problems such as energy supply caused by sensor network local environment diversity and unpredictable feature.
By described above as it can be seen that embodiment can effectively improve efficiency of energy collection, wherein the collection of energy mould proposed
Block can work always in the case where being changed without battery, reduce and make because of replacement or maintenance sensor network node power supply module
At node data problem and Human Resource Problems, to solve the problems, such as the energy supply of sensing network node, energy conservation and environmental protection, significantly
Extend the lifetime of system of no supervision network.Meanwhile the network node also has that structure is simple, figure is small and exquisite, it is practical,
Feature easy to maintain.In addition, can be applied equally to other for this system that the energy supply problem of Sensor Network is designed
The node or detector that no supervision, energy supply are at high cost, energy supply module is difficult in maintenance.Social resources have been saved, have been mentioned
High production capacity.And minimum is also reduced to for the pollution of environment.
The above is only a preferred embodiment of the present invention.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the principle of the present invention, various modifications and improvements can be made, these also should be regarded as belonging to the present invention
Protection scope.
Claims (10)
1. a kind of tracking solar energy collecting system certainly of facing sensing net application, it is characterised in that: including miniature control chip, energy
It measures collection module and state detection module, energy collection module includes solar panel, solar charging controller, lithium battery
With pose adjustment component, lithium battery uses rechargeable lithium battery, and solar panel can charge controller connection lithium electricity by sun
Pond, solar panel are set on pose adjustment component, and pose adjustment component connects miniature control chip, state detection module packet
Include electric power detection unit, light intensity detection module and wind speed measurement controller, electric power detection unit be separately connected lithium battery with it is miniature
Chip is controlled, miniature control chip is also connected with light intensity detection module, and wind speed measurement controller is connect with miniature control chip, energy
Collection module is entirely provides electricity from tracking solar energy collecting system towards Sensor Network application, energy collection module and to biography
Sensor node exports electric energy.
2. the tracking solar energy collecting system certainly of facing sensing net application as described in claim 1, it is characterised in that: energy is received
Collection module further includes battery voltage sensing module, and lithium battery connects solar charging/discharging by battery voltage sensing module and controls
Device.
3. the tracking solar energy collecting system certainly of facing sensing net application as claimed in claim 2, it is characterised in that: energy is received
Collecting module further includes Voltage stabilizing module, and the input port of Voltage stabilizing module connects the load outputs of solar charging discharging controller, pressure stabilizing
The output port of module provides the solar energy collecting system electricity of tracking certainly that 5 volts of power supplys are the application of facing sensing net, Voltage stabilizing module
Output port is simultaneously powered for external sensor node.
4. the tracking solar energy collecting system certainly of facing sensing net application as described in claim 1, it is characterised in that: light intensity is visited
Survey module and convert the difference information of illumination to the difference information of voltage analog, miniature control chip read difference information into
After row calculates, angle information of the solar panel with respect to sunlight light is obtained, pose adjustment component uses steering engine, miniature control
Coremaking piece sends pose adjustment signal to pose adjustment component after receiving light intensity difference signal, and pose adjustment component is believed according to adjustment
Number the pitch angle and horizontal angle of solar panel are modified.
5. the tracking solar energy collecting system certainly of facing sensing net application as described in claim 1, it is characterised in that: solar energy
Charging-discharging controller charges the output voltage control of lithium battery in safe range, and while control lithium battery output, realizes
The charge and discharge simultaneity of battery, and when lithium battery voltage is too low, solar charging discharging controller can cut off the output of battery, protect
Shield battery prevents under-voltage.
6. tracking solar energy collecting system, the feature certainly of facing sensing net application as described in any one in claim 1-5 exist
In: under the premise of intensity of illumination reaches given threshold, into tracking mode:
Intensity of illumination is converted into analog quantity by light-sensitive element by subsidiary light intensity detection module on S11, solar panel,
And the miniature measurable range of control chip is contracted to analog quantity is proportional by conducting wire and divider resistance；
S12, miniature control chip will acquire the voltage value of photosensitive module and are translated into digital quantity by analog-digital converter,
The size that four orientation intensities of illumination are obtained after being handled on miniature control chip relatively, is judged too by the difference of light intensity
Inflection point of the positive energy solar panel relative to sun light direct beam direction；
S13, obtain solar panel relative to the miniature control chip after the deflection angle in sun light direct beam direction to steering engine send out
Send control signal that it is made to carry out angle modification to solar panel.
7. the tracking solar energy collecting system certainly of facing sensing net application as claimed in claim 3, it is characterised in that: energy is received
Collection module realization process be,
After S21, sunlight are irradiated to solar panel, the output end of solar panel generates potential difference, through solar energy charge and discharge
Electric controller carries out pressure stabilizing and is followed by lithium battery charging；
S22, trickle charge is carried out when the voltage value of lithium battery rises to saturation；
The electric energy that S23, solar charging discharging controller are got using solar panel is that lithium battery interval is filled by PWM wave
Electricity, solar charging discharging controller is using charge control intermittently by the power output of lithium battery to solar charging discharging controller
Delivery outlet, the delivery outlet of solar charging discharging controller are that entirely the solar energy collecting system of tracking certainly towards Sensor Network application mentioning
Power supply volume, and electric energy is exported to sensor node；
S24, miniature control chip read the voltage-mode analog values after partial pressure by ratio reduction voltage circuit, are calculated by the analogue value
Lithium battery virtual voltage, and then the remaining capacity of battery is calculated by lithium battery discharge curve, while battery capacity being exported
To display.
8. tracking solar energy collecting system, the feature certainly of facing sensing net application as described in any one in claim 1-5 exist
In: the process that danger early warning control is carried out from tracking solar energy collecting system of facing sensing net application are as follows:
S31, wind speed measurement device connect miniature control chip directly by lithium battery power supply, and miniature control chip will be directly from wind
The voltage that fast detector is read carries out given threshold comparison after carrying out signal processing, micro- if wind speed is beyond given threshold
Type control chip is in system protection and disconnects power supply of the lithium battery to steering engine；
S32, when wind speed reduces, the output voltage of wind speed measurement device also decreases, and miniature control chip detects voltage reduction
Timing is opened after below to given threshold, if voltage after setting time is waited to be still below given threshold, miniature control chip is extensive
Multiple power supply of the lithium battery to steering engine, solar panel are followed spot again.
9. tracking solar energy collecting system, the feature certainly of facing sensing net application as described in any one in claim 1-5 exist
In: electric power detection unit measures electric quantity of lithium battery using voltage detecting method, and miniature control chip utilizes lithium battery output voltage
Size judges lithium battery remaining capacity, and remaining capacity information is sent to sensor node, sensor section by data line
The formulation of point carry out system power consumption decision；Miniature control chip is communicated with the control unit of sensor node, by lithium battery
Information about power, working condition be sent to sensor node, and receive the control signal from sensor node, believed according to control
Number complete operating mode selection.
10. tracking solar energy collecting system, the feature certainly of facing sensing net application as described in any one in claim 1-5 exist
In: the solar charging discharging controller in energy collection module is used to improve the power supply mode of sensor network nodes, supervises in real time
The collection efficiency of shoot the sun energy, if high conversion efficiency, that is, solar panel output voltage is more than or equal to 18 volts, solar-electricity
Solar energy lithium battery on the plate of pond is that sensor network nodes power and extra electric energy is stored in rechargeable lithium battery, if conversion
Low efficiency, that is, solar panel output voltage is greater than 15 volts less than 18 volts but still enough sensor network nodes work uses, then
Solar energy lithium battery is only sensor network nodes power supply, if the not enough power supply that solar battery provides uses so that node works
I.e. solar panel output voltage is more than or equal to 15 volts, then sensor network nodes are directly powered by rechargeable lithium battery, too
Positive energy solar panel collects electricity and supplies rechargeable lithium battery.
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