CN104729725A - Community environment temperature measurement system based on voltage-stabilizing circuit node power supply - Google Patents
Community environment temperature measurement system based on voltage-stabilizing circuit node power supply Download PDFInfo
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Abstract
The invention discloses a community environment temperature measurement system based on a voltage-stabilizing circuit node power supply. The community environment temperature measurement system based on the voltage-stabilizing circuit node power supply comprises a sink node, a monitoring center and a wireless sensor network composed of a plurality of sensor nodes. The community environment temperature measurement system is characterized in that the sensor nodes comprise a microcontroller module, a temperature measurement module and a power supply module, wherein the temperature measurement module and the power supply module are connected with the microcontroller module, the power supply module comprises a solar light panel, a voltage-stabilizing circuit, a charging circuit, a battery and a comparator, the output end of the solar light panel is connected with the input end of the voltage-stabilizing circuit, the output end of the voltage-stabilizing circuit is connected with the input end of the charging circuit, the output end of the charging circuit is connected with the input end of the power supply module, the output end of the power supply module is connected with the input end of the comparator, and the output end of the comparator is connected with the charging circuit. The nodes are charged by utilizing solar energy, the voltage state of the battery can be analyzed in real time, therefore, the battery can be intelligently charged and the service life of the nodes is effectively prolonged.
Description
Technical field
The present invention relates to a kind of temperature measurement system, particularly relate to a kind of community environment's temperature measurement system based on mu balanced circuit node power, belong to environmental monitoring field.
Background technology
Temperature is a very important environmental parameter, life and the environment temperature of people are closely bound up, real-time measures ambient temperature is needed in industrial processes, also temperature survey is be unable to do without in agricultural production, at present, in the weather environment such as weather station and radiosonde field of detecting, conventional temperature sensor many employings platinum resistance or thermistor carry out temperature survey.Because ice, snow, raindrop, water dust, dew etc. are liquid or solid water may stick to sensor surface, the evaporation endothermic that water dust, raindrop and dew drip, the thawing of ice and snow and distillation all may cause measuring tempeature lower than the actual temperature of atmospheric environment, what water dust, raindrop and dew dripped freeze, and release latent heat may cause measures ambient temperature higher than environment temperature, causes certain measuring error.
At present, environment temperature precise monitoring with management for improving environmental Kuznets Curves precision, economize energy and promoting to produce important effect.Current China environmental monitoring system is deficient, even if having, often adopt some bioassay methods, the wiring detection method serious waste energy, often all uneven and different by the parameters of diverse location, so need the temperature value gathering multiple difference to carry out Comprehensive Evaluation, current most of temperature monitoring systems all can not cover whole community effectively, are difficult to the unitarity realizing parameters.
Such as application number is a kind of weather monitoring system of " 201210051929.8 ", comprises multiple weather station, and the plurality of weather station is distributed in different geographic areas, and each weather station comprises: processor module; Power-supply controller of electric, for this weather station provides power supply; Sensor assembly, detects the Weather information of geographic area residing for this weather station in real time and is transferred to processor module; Transmitter module, is transferred to other weather stations by the Weather information that this weather station detects; Receiver module, accepts the Weather information that transmits other weather stations and sends it to processor module; And display apparatus module, be connected with this processor module the Weather information showing geographic area residing for each weather station as required.This invention additionally provides a kind of road lamp system applying above-mentioned weather monitoring system.Although this invention energy measures ambient temperature, needs to be further improved in measuring accuracy.
And for example application number is image detecting method and the system of a kind of farmland weak navigation information of " 201210058950.0 ", relates to machine vision navigation technical field, said method comprising the steps of: S1: the image to be detected gathering current farmland; S2: judge whether described image to be detected is the first two field picture, if so, then carries out the navigation straight-line detection of the first two field picture, returns step S1, otherwise carry out the navigation straight-line detection of non-first two field picture; S3: the result according to the navigation straight-line detection of described non-first two field picture carries out field end detection, judges whether to arrive Tian Duan, if so, then detection of end, otherwise, return step S1.The present invention passes through for the farmland operation environment with weak navigation information, utilize the methods such as the interrelated and segmentation Hough transform of wavelet transformation and Line broadening analysis, front and back frame, in the unconspicuous situation of farmland area limit, achieve the image recognition of guidance path, and testing result is accurate, stable and quick.Although this invention achieves wireless monitor and transmission with arriving environment, power consumption is high, and cost is higher, detect data and there is error, and lack corresponding node control, make most of node be in idle work state, on energy saving optimizing, still there is very large progressive space.
For another example application number is a kind of battery charge controller and the charge control method of " 201410265511.6 ", it can realize making the serviceable life of secondary cell elongated, this battery charge controller is for controlling the charging of secondary cell, described battery charge controller comprises: voltage detection department, detects the output voltage values of described secondary cell; Detection unit, based on described output voltage values, judges whether described secondary cell is in fully charged state; And charging control section, when described detection unit determine be in non-fully charged state time, by carrying out trickle charge to described secondary cell thus make described secondary cell be in fully charged state during the first stipulated time.
Summary of the invention
Technical matters to be solved by this invention provides a kind of community environment's temperature measurement system based on mu balanced circuit node power for the deficiency of background technology, it can accurate measures ambient temperature, node power adopt solar powered, and can real-time analysis cell voltage state, reach intelligentized to charge to battery, effectively extend the serviceable life of node.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of community environment's temperature measurement system based on mu balanced circuit node power, the wireless sensor network comprising aggregation node, Surveillance center and be made up of multiple sensor node, described sensor node comprises micro controller module and connected temperature measurement module and power module, and described power module comprises sun power tabula rasa, mu balanced circuit, charging circuit, battery and comparer; The output terminal of described sun power tabula rasa connects the input end of mu balanced circuit, the output terminal of described mu balanced circuit connects the input end of charging circuit, the output terminal of described charging circuit connects the input end of power module, the output terminal of described power module connects the input end of comparer, and the output terminal of described comparer connects charging circuit; Wherein, comparer is used for cell output voltage and setting value being contrasted in real time, and then controls the opening and closing of charging circuit;
Described mu balanced circuit comprises stabilized voltage supply chip, first electrochemical capacitor, second electrochemical capacitor, inductance, first resistance, second resistance and diode, the negative pole of described first electrochemical capacitor connects one end of the first resistance and the input end of sun power tabula rasa respectively, the other end of the first resistance connects the input end of stabilized voltage supply chip, the negative pole of diode connects one end of inductance and the output terminal of stabilized voltage supply chip respectively, the other end of inductance is connected charging circuit respectively with after the second resistant series, the negative pole of the second electrochemical capacitor, the positive pole of the first electrochemical capacitor, the positive pole of the second electrochemical capacitor, the earth terminal of stabilized voltage supply chip, the positive pole of diode is connected to ground.
As the further preferred version of a kind of community environment's temperature measurement system based on mu balanced circuit node power of the present invention, described mu balanced circuit chip model is MC34063.
As the further preferred version of a kind of community environment's temperature measurement system based on mu balanced circuit node power of the present invention, the voltage setting value of described comparer is 2.75V.
As the further preferred version of a kind of community environment's temperature measurement system based on mu balanced circuit node power of the present invention, described micro-control module adopts AVR series monolithic.
As the further preferred version of a kind of community environment's temperature measurement system based on mu balanced circuit node power of the present invention, described battery is chargeable storage.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, volume of the present invention little, broad covered area, functional diversities, convenient stable, is easy to operation, is convenient to management, can monitoring of environmental temperature parameter effectively;
2, the present invention adopts wireless sensor network to measure environment temperature, can accurate measures ambient temperature;
3, node of the present invention power adopt solar powered, and can real-time analysis cell voltage state, reach intelligentized and battery charged, effectively extend the serviceable life of node.
Accompanying drawing explanation
Fig. 1 is present system structural drawing;
Fig. 2 is sensor node power module system structural drawing of the present invention;
Fig. 3 is power module mu balanced circuit circuit diagram of the present invention.
Number in the figure is specific as follows: 1-sensor node, 2-wireless sensor network.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, a kind of community environment's temperature measurement system based on mu balanced circuit node power, the wireless sensor network 2 comprising aggregation node, Surveillance center and be made up of multiple sensor node 1, described sensor node comprises micro controller module and connected temperature measurement module and power module, and described power module comprises sun power tabula rasa, mu balanced circuit, charging circuit, battery and comparer; The output terminal of described sun power tabula rasa connects the input end of mu balanced circuit, the output terminal of described mu balanced circuit connects the input end of charging circuit, the output terminal of described charging circuit connects the input end of power module, the output terminal of described power module connects the input end of comparer, and the output terminal of described comparer connects charging circuit; Wherein, comparer is used for cell output voltage and setting value being contrasted in real time, and then controls the opening and closing of charging circuit;
Described mu balanced circuit comprises stabilized voltage supply chip, first electrochemical capacitor, second electrochemical capacitor, inductance, first resistance, second resistance and diode, the negative pole of described first electrochemical capacitor connects one end of the first resistance and the input end of sun power tabula rasa respectively, the other end of the first resistance connects the input end of stabilized voltage supply chip, the negative pole of diode connects one end of inductance and the output terminal of stabilized voltage supply chip respectively, the other end of inductance is connected charging circuit respectively with after the second resistant series, the negative pole of the second electrochemical capacitor, the positive pole of the first electrochemical capacitor, the positive pole of the second electrochemical capacitor, the earth terminal of stabilized voltage supply chip, the positive pole of diode is connected to ground.
Wherein, described stabilized voltage supply chip model is MC34063, and the voltage setting value of described comparer is 2.75V, and described micro-control module adopts AVR series monolithic, and described battery is chargeable storage.
Although wireless sensor network has similarity with wireless self-networking, also there is very large difference simultaneously.Sensor network is integrated with monitoring, controls and the network system of radio communication, and interstitial content is more huge, and Node distribution is more intensive; Due to environmental impact and depleted of energy, node more easily breaks down; Environmental interference and node failure easily cause the change of network topology structure; Under normal circumstances, most of sensor node is fixed.In addition, energy, processing power, storage capacity and the communication capacity etc. that have of sensor node are all very limited.The primary design object of conventional wireless network is to provide high quality-of-service and high efficient band width utilizes, and secondly just considers economize energy; And the primary design object of sensor network is the efficiency utilization of the energy, this is also one of sensor network and the most important difference of legacy network.
The energy supply of node is the important prerequisite of node work, if electricity shortage, whole system will be caused to paralyse.For extending the serviceable life of node, the method for multiple reduction power consumption is suggested, as: data compression technique and low-power consumption route technology etc., but the method for any reduction power consumption all thoroughly can not solve the limited problem of node lifetime.The utilization of regenerative resource, as: the utilization of sun power, vibration, tide and wind energy etc., is considered to the feasible program solved the problem.For outdoor system, sun power possesses skills relative maturity, the advantages such as energy density is larger, is considered to for node provides the feasible method of additional energy source.
The output voltage of battery is down to 2.75 V.Comparer compares this value in the magnitude of voltage of battery.When the sunny and voltage of battery is lower than 2.75 V, comparator opens switch, charges to battery.Otherwise when the voltage of battery is equal to or greater than 2.75 V, switch cuts out and stops charging process.Diode is used for stoping electric current to flow into solar panel by battery.
It is that mobile phone charges at any time that the present invention can be used for people at journey, also can be used for miner's illumination etc.This charger can by the energy transferring of direct supply in the rechargeable battery of more than 3.6V.Feed circuit are the mu balanced circuits be made up of MC34063 chip, this chip be a can step-down also can the switching power supply chip of employing PWM regulative mode of booster type, the operating voltage range of MC34063 is 3 ~ 40V.This circuit the voltage that input is come in is carried out voltage stabilizing process reach required voltage value, simultaneously this voltage can also as the operating voltage of single-chip microcomputer and ADC0832, detect the size of electric power output voltage, thus judge whether to charge to battery, and the length of detection time can set according to the needs of user, and by numeral method out.In order to improve the work efficiency of single-chip microcomputer, dormancy being in single-chip microcomputer and carrying out interrupted detection with work two states.
The core of battery charger is DC power convertor, sun power is changed into the electric energy transfer that matches in rechargeable battery.Electricity collection charger is transported in the equipment of required charging large as far as possible for the power of input, and the charge efficiency of charger is improved as far as possible.This charger requires low to input voltage, and can energy in the absorption direct supply of maximum possible, more energy-conservation than general charger.Feed circuit are the mu balanced circuits be made up of MC34063 chip, this chip be a can step-down also can the switching power supply chip of employing PWM regulative mode of booster type, the operating voltage range of MC34063 is 3 ~ 40V.This circuit the voltage that input is come in is carried out voltage stabilizing process reach required voltage value, and this voltage can also as the operating voltage of comparer simultaneously.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (5)
1. the community environment's temperature measurement system based on mu balanced circuit node power, the wireless sensor network comprising aggregation node, Surveillance center and be made up of multiple sensor node, it is characterized in that: described sensor node comprises micro controller module and connected temperature measurement module and power module, and described power module comprises sun power tabula rasa, mu balanced circuit, charging circuit, battery and comparer; The output terminal of described sun power tabula rasa connects the input end of mu balanced circuit, the output terminal of described mu balanced circuit connects the input end of charging circuit, the output terminal of described charging circuit connects the input end of power module, the output terminal of described power module connects the input end of comparer, and the output terminal of described comparer connects charging circuit; Wherein, comparer is used for cell output voltage and setting value being contrasted in real time, and then controls the opening and closing of charging circuit;
Described mu balanced circuit comprises stabilized voltage supply chip, first electrochemical capacitor, second electrochemical capacitor, inductance, first resistance, second resistance and diode, the negative pole of described first electrochemical capacitor connects one end of the first resistance and the input end of sun power tabula rasa respectively, the other end of the first resistance connects the input end of stabilized voltage supply chip, the negative pole of diode connects one end of inductance and the output terminal of stabilized voltage supply chip respectively, the other end of inductance is connected charging circuit respectively with after the second resistant series, the negative pole of the second electrochemical capacitor, the positive pole of the first electrochemical capacitor, the positive pole of the second electrochemical capacitor, the earth terminal of stabilized voltage supply chip, the positive pole of diode is connected to ground.
2. a kind of community environment's temperature measurement system based on mu balanced circuit node power according to claim 1, is characterized in that: described stabilized voltage supply chip model is MC34063.
3. a kind of community environment's temperature measurement system based on mu balanced circuit node power according to claim 1, is characterized in that: the voltage setting value of described comparer is 2.75V.
4. a kind of community environment's temperature measurement system based on mu balanced circuit node power according to claim 1, is characterized in that: described micro-control module adopts AVR series monolithic.
5. a kind of community environment's temperature measurement system based on mu balanced circuit node power according to claim 1, is characterized in that: described battery is chargeable storage.
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| CN106404175A (en) * | 2016-09-23 | 2017-02-15 | 南京信息工程大学 | Air-sea hyperspectral radiation automatic observation system based on positioning method |
| CN108692466A (en) * | 2018-06-13 | 2018-10-23 | 汪霜叶 | A kind of intelligence GaAs high power concentrator cogeneration of heat and power module |
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| US6377025B1 (en) * | 2000-06-12 | 2002-04-23 | Tampa Communication Inc. | Mobile phone battery pack with recording device for memorizing recharged number of times |
| CN101713652A (en) * | 2009-11-05 | 2010-05-26 | 河海大学 | Intelligent multi-sensor system and working method thereof |
| CN101917030A (en) * | 2010-07-12 | 2010-12-15 | 何峰 | Solar energy charge-discharge parameter setting system |
| CN102801192A (en) * | 2012-08-10 | 2012-11-28 | 江苏大学 | Wireless sensor network node solar charging and storage battery discharging protective circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106404175A (en) * | 2016-09-23 | 2017-02-15 | 南京信息工程大学 | Air-sea hyperspectral radiation automatic observation system based on positioning method |
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