CN109993954A

CN109993954A - A kind of meteorological data wireless monitor system and its working method suitable for wisdom agricultural

Info

Publication number: CN109993954A
Application number: CN201910224203.1A
Authority: CN
Inventors: 张建福
Original assignee: Shenzhen Lianzhi Internet Of Things Technology Co Ltd
Current assignee: Shenzhen Lianzhi Internet Of Things Technology Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2019-07-09

Abstract

The present invention relates to wisdom the technical field of the Agricultural Internet of Things, disclose a kind of meteorological data wireless monitor system and its working method for wisdom agricultural.It creates through the invention, on the one hand using by weather station terminal, the telecommunication link that base station and background server are constituted, the concentrated collection and long-distance Log server purpose of various meteorological record data near farm area may be implemented, on the other hand it utilizes in weather station terminal side by micro-control circuit unit, the Energy Saving Control access that power amplifier power-supplying circuit unit and half-duplex transmitting-receiving power amplifier and antenna element are constituted, power amplifier can be received and dispatched to the half-duplex in suspend mode and antenna element carries out lower electric power-save operation, start messaging so as to periodicity or intermittence, realize the purpose of end cell energy conservation and delay cruising ability, it is more applicable for the entire meteorological data wireless monitor system and weather station terminal in wisdom agricultural scene.

Description

A kind of meteorological data wireless monitor system and its working method suitable for wisdom agricultural

Technical field

The invention belongs to wisdom the technical field of the Agricultural Internet of Things, and in particular to a kind of meteorological data suitable for wisdom agricultural Wireless monitor system and its working method.

Background technique

Wisdom agricultural is advanced application of the technology of Internet of things in modern agriculture field, i.e., carries out with sensor and software remote Journey monitoring, and agricultural production is controlled by mobile platform or computer platform, make traditional agriculture with more " wisdom ".It removes Outside accurate perception, control and decision-making management, from saying in broad sense, wisdom agricultural further includes that electronic commerce of agriculture, food trace back Source is anti-fake, agriculture amusement and travel, agricultural information service etc. content.Current wisdom agricultural technology of Internet of things mainly includes There are following several function systems.

(1) monitoring function system: the plant growth environment information obtained according to wireless network such as monitors soil moisture, soil (other parameters can also be matched the parameters such as earth temperature, air themperature, air humidity, intensity of illumination, plant nutrient content, such as soil PH value and conductivity in earth etc.).Information collects, is responsible for receiving data, the storage, display that wireless sensing aggregation node is sent And data management, acquisition, management, Dynamically Announce and the analysis processing of all base test point information are realized, with intuitive chart It is shown to user with the mode of curve, and automatic irrigation, automatic drop are carried out to Agricultural Park according to the feedback of the above various information Temperature, automatically volume mould, automatic progress liquid fertilizer fertilising and the automatic control such as spray behavior automatically.

(2) monitoring function system: realizing automatic information Detection & Controling in Agricultural Park, by being equipped with wireless sensing section Point, solar electric power supply system, information collection and information router equipment are equipped with wireless sensing Transmission system, and each basic point configuration is wireless Sensing node, each wireless sensing node can monitor soil moisture, the soil moisture, air themperature, air humidity, intensity of illumination, The parameters such as plant nutrient content.And various sound-light alarm information and SMS alarm information are provided according to the demand of long-term cropping.

(3) realtime graphic and video monitoring function system: the basic conception of agriculture Internet of Things be realize agriculturally crop with The relational network that object object between environment, soil and fertility is connected realizes crops most by multidimensional information and multi-level processing Good growing environment conditioning and fertilizing management.But as management agricultural production personnel for, the object object only to quantize is connected Crop the best growing condition can not be built completely.Video provides more intuitively with picture control being associated between object and object Expression way.Such as: which block ground water shortage is only capable of seeing that moisture data is relatively low in Internet of Things single layer data, it should fill Any degree is irrigate, and cannot extremely remove and do decision only according to this data with applying arbitrarily.Because agriculture production environment is not Uniformity determines the congenital drawback that Agricultural Information obtains, and is difficult to be broken through from simple technological means.Video The reference of monitoring intuitively reflects the real-time status of production estimation, introduces video image and image procossing, both can be intuitively anti- Reflect the growth growing way of some crops, the integrality and trophic level of plant growth can also be reflected with side, so as to from More scientific planting decision-making theoretical foundation is provided to peasant household on the whole.

In above-mentioned several big function systems, requires acquisition weather information and carry out guiding agricultural production, that is, need according in agriculture The meteorological data of field areas acquisition is made more accurate prediction and forecast to the weather condition in following certain period, is instructed Operating personnel makes the operations such as plan and disaster prevention, such as prevention waterlogging, drought resisting and wind resistance to real-time production.But existing big portion Divide the acquisition data of meteorological information collection system all relatively simple, and meteorological department only provides in some region (general county domain More than) whole meteorological data, it is difficult to be directly applied in specific Agricultural Activities.Simultaneously for completing various meteorological numbers Generally need the discrete arrangement in field (such as planting fructus lycii etc specialty economies plant according to acquisition and the weather station terminal uploaded Mountain area or outlying sand ground etc.), in order to avoid powering and communicating the trouble of cabling, generallys use battery and power and utilize wireless Internet of Things Network carries out data upload, while (such as the office building on farm or cities and towns) is arranged generally proximate to settlement in distal end monitoring backstage, The agriculture scene of distance may be remote up to dozens of kilometres, thus certainly exist weather station terminal energy conservation and meteorological data concentrated collection with And the demand of teletransmission, it is necessary to design it is a can extend end cell cruising ability be able to achieve again meteorological data concentrate acquisition with And the novel meteorological data wireless monitor system of teletransmission.

Summary of the invention

In order to solve existing wireless monitor system in end cell energy conservation and the side such as meteorological data concentrated collection and teletransmission The demand in face, it is an object of that present invention to provide a kind of meteorological data wireless monitor system suitable for wisdom agricultural and its work sides Method.

The technical scheme adopted by the invention is as follows:

A kind of meteorological data wireless monitor system suitable for wisdom agricultural, if including background server, base station and dry gas As terminal of standing, wherein the background server can wirelessly communicate the connection base station, and the base station can wirelessly communicate described in connection Weather station terminal, the base station obtain terminal unique identification information and meteorological record from the weather station terminal for making an inventory Data, and the terminal unique identification information and meteorological record data binding are uploaded to the background server；

The weather station terminal includes micro-control circuit unit, wireless transceiver circuit unit, half-duplex transmitting-receiving power amplifier And antenna element, power amplifier power-supplying circuit unit and several meteorological sensors, wherein the meteorological sensor includes that wind speed passes Sensor, wind transducer, precipitation rain fall sensor, light intensity sensor, aerial temperature and humidity sensor, carbon dioxide sensor and PM2.5 Any combination of any one or they in sensor；

The micro-control circuit unit, the wireless transceiver circuit unit and half-duplex transmitting-receiving power amplifier and antenna Unit successively communicates to connect, and the power amplifier of the micro-control circuit unit enables output end and is electrically connected the power amplifier power-supplying circuit The controlled end of unit, the power supply output end of the power amplifier power-supplying circuit unit are electrically connected the half-duplex and receive and dispatch power amplifier And it is first defeated to be electrically connected the micro-control circuit unit for the power supply incoming end of antenna element, the output end of the meteorological sensor Enter end.

Optimization, the power amplifier power-supplying circuit unit uses the low voltage difference line of model MCP1824T-3302e/OT Property voltage stabilizing chip and include third capacitor, the 4th capacitor, the 5th capacitor and second resistance, wherein the low pressure difference linearity is steady Press chipPin is electrically connected the micro-control circuit list as the controlled end of the power amplifier power-supplying circuit unit The power amplifier of member enables output end, and the VIN pin of the low pressure difference linearity voltage stabilizing chip is electrically connected battery power supply incoming end, institute State one end of third capacitor and one end of the 4th capacitor, the GND pin of the low pressure difference linearity voltage stabilizing chip, the third The other end of the other end of capacitor and the 4th capacitor is grounded respectively, the VOUT pin point of the low pressure difference linearity voltage stabilizing chip It is not electrically connected the power supply output end of the power amplifier power-supplying circuit unit, one end of the 5th capacitor and the second resistance One end, the PWRGD pin of the low pressure difference linearity voltage stabilizing chip is electrically connected the other end of the second resistance, the 5th electricity The other end of appearance is grounded.

Optimization, half-duplex transmitting-receiving power amplifier and antenna element using model SE2611T power amplifier chips and The single channel reverser of model SN74LVC1G04DBVT and include the 6th capacitor and the 7th capacitor, wherein the power amplifier chips LEN pin and CRX pin be electrically connected the Y pin of the single channel reverser, the PEN pin and CTX of the power amplifier chips The A pin of pin and the single channel reverser is electrically connected the half-duplex transmitting-receiving switching of the wireless transceiver circuit unit The TX pin at end, the power amplifier chips is electrically connected the radio frequency letter of the wireless transceiver circuit unit after the 6th capacitor of connecting The CX pin of number connecting pin, the power amplifier chips is electrically connected the wireless transceiver circuit unit after the 6th capacitor of connecting Radiofrequency signal connecting pin.

Another technical solution of the present invention are as follows:

A kind of working method suitable for the meteorological data wireless monitor system of wisdom agricultural as previously described, comprising:

(1) weather station terminal includes suspend mode and awakening mode；

The suspend mode comprises the following steps that

S101. after determining into suspend mode, micro-control circuit unit and wireless transceiver circuit unit enter energy saving work Make state, while enabling output end in power amplifier by the control of micro-control circuit unit and exporting the first level signal, supplies the power amplifier The power supply output end of electric control circuit unit exports low level voltage, electricity under the half-duplex transmitting-receiving power amplifier and antenna element It stops work；

The awakening mode comprises the following steps that

S201. after determining into awakening mode, micro-control circuit unit and wireless transceiver circuit unit enter normal work Make state, while being read by micro-control circuit unit and being stored the meteorological record data from meteorological sensor, by microcontroller electricity Unit control in road enables output end output second electrical level signal in power amplifier, keeps the power supply of the power amplifier power-supplying circuit unit defeated Outlet output high level voltage, the half-duplex transmitting-receiving power amplifier and antenna element work on power, wherein the meteorological record Data include air speed data, wind direction data, rainfall data, light intensity data, aerial temperature and humidity data, carbon dioxide content data and Any combination of any one or they in PM2.5 content data；

S202. by micro-control circuit unit by wireless transceiver circuit unit control the half-duplex receive and dispatch power amplifier and Antenna element enters either simplex reception state: if receiving the terminal wakeup message from base station on schedule on waking up channel, successively Step S203~S205 is executed, otherwise determines and enters suspend mode；

S203. the terminal unique identification information being locally stored and meteorological record data are bundled in data upload message；

S204. by micro-control circuit unit by wireless transceiver circuit unit control the half-duplex receive and dispatch power amplifier and Antenna element enters either simplex emission state: sending the data upload to base station by channel competition mechanism on a data channel and disappears Breath；

S205. by micro-control circuit unit by wireless transceiver circuit unit control the half-duplex receive and dispatch power amplifier and Antenna element enters either simplex reception state: if not receiving data corresponding with the data upload message on schedule on an acknowledgment channel Confirmation message is uploaded, then determines to send failure, then return step S204 retransmits the data upload message, until described The sending times of data upload message reach maximum retransmission, finally determine and enter suspend mode, otherwise determine to send successfully, It directly determines and enters suspend mode；

(2) it after initiation message is made an inventory to the terminal from background server in wireless receiving in base station, makes an inventory mould into terminal The terminal wakeup message is transmitted wirelessly on waking up channel, and is received by interception data channel and comes from weather station terminal likes: Data upload message, and feed back corresponding with data upload message data to weather station terminal on an acknowledgment channel and upload really Recognize message, finally by data upload message terminal unique identification information and meteorological record data binding be uploaded to background service Device；

(3) background server wireless receiving and storage terminal unique identification information and meteorological record data is bound.

Optimization, terminal unique identification information and meteorological record data are being bundled to data upload message by weather station terminal Before, randomly choosed from local storage a kind of Encryption Algorithm/and encryption key to the terminal unique identification information and/or The meteorological record data are encrypted, and pass insert Encryption Algorithm selection information/and encryption in message on the data Key choice information, wherein Encryption Algorithm selection information be used to indicate encrypt the terminal unique identification information and/or The algorithm unique identification of used Encryption Algorithm during the meteorological record data, the encryption key selection information are used for It indicates encrypting the close of the terminal unique identification information and/or meteorological record data durings used encryption key Key unique identification；

Base station first selects information in local storage after receiving the data upload message according to the Encryption Algorithm It searches the correspondence decipherment algorithm/prestored and selects information to search the correspondence prestored in local storage according to the encryption key Decruption key, then using the decipherment algorithm found/and decryption key decryption obtain the terminal unique identification information and/or The meteorological record data.

Optimization, if long letter when the terminal wakeup message includes upload task unique identification information and temporary sleep Breath, then weather station terminal is after wirelessly receiving the terminal wakeup message, by micro-control circuit unit according to the upload task Unique identification information judges whether that corresponding meteorological record data, which are completed, uploads task, if it is determined that being completed, then according to Temporary sleep duration information, which determines, enters provisional suspend mode.

Optimization, if the terminal is made an inventory, initiation message includes mode indication information of making an inventory, when the mode of making an inventory Instruction information is when being designated as long disk mode, and base station is immediately finished after end message receiving the terminal from background server and make an inventory Terminal bay dot pattern, and when the mode indication information of making an inventory is designated as fast disk mode, base station is made an inventory according to the terminal and is opened Duration information timing of making an inventory in dynamic message terminates terminal bay dot pattern or makes an inventory knot receiving the terminal from background server Terminal bay dot pattern is immediately finished after beam message.

Optimization, if the terminal is made an inventory, initiation message includes that data return to instruction information, when the data return When instruction information is designated as data and directly returns, by base station periodically by the newest terminal unique identification information received and meteorology Record data binding is uploaded to background server, and when data return instruction information is designated as reading data return, base It stands after receiving the data read request message from background server, the terminal unique identification information and meteorology that caching is received Record data binding is uploaded to background server.

Optimization, local cache data is removed when entering terminal bay dot pattern in base station, and whole to backstage server feedback End plate point starts success message；

Base station is made an inventory initiation message before terminating terminal bay dot pattern if receiving the terminal from background server again, It makes an inventory to backstage server feedback terminal and starts failed message, wherein the terminal, which is made an inventory, starts failed message comprising in disk Point instruction information.

Optimization, in the step S201, micro-control circuit unit successively obtains each meteorological biography according to polling mode The meteorological record data of sensor, and different meteorological record data are stored according to following unified format: sensor classification field passes Sensor parameter field, sensor manufacturer field, sensor description field, sensing data payload field, sensing data have Imitate the combined in any order of bit field, terminal unique identification field and sensor acquisition data field.

The invention has the benefit that

(1) the invention provide one kind can extend end cell cruising ability be able to achieve again meteorological data concentration adopt Collection and the novel meteorological data wireless monitor system of teletransmission, on the one hand utilize by weather station terminal, base station and background server The concentrated collection and long-distance Log server mesh of various meteorological record data near farm area may be implemented in the telecommunication link of composition , it on the other hand utilizes in weather station terminal side and is received by micro-control circuit unit, power amplifier power-supplying circuit unit and half-duplex Send out the Energy Saving Control access that power amplifier and antenna element are constituted, can in suspend mode to the half-duplex receive and dispatch power amplifier and Antenna element carries out lower electric power-save operation, starts messaging so as to periodicity or intermittence, realizes end cell section The purpose that can and postpone cruising ability is more applicable for the entire meteorological data wireless monitor system and weather station terminal In wisdom agricultural scene；

It (2), can be further by using the working method comprising suspend mode and awakening mode in weather station terminal side Promote weather station terminal in data acquisition and upload procedure, various inessential awakening time slots is made full use of to carry out suspend mode Optimal energy saving purpose is reached in energy conservation；

It (3), can be with by applying password verification scheme and information encryption mechanism in the working method of weather station terminal side It avoids being gained or being stolen meteorological record data by cheating, realizes the purpose to ensure information safety in data upload process；

(4) various meteorological record data may be implemented from collection in worksite to the complete procedure of backstage storage processing, make base station With background server can quick obtaining meteorological record data, ensured the timeliness of meteorological data wireless monitor, further benefit In the wisdom of existing agricultural；

(5) also there is the weather station terminal reiving/transmitting state can indicate, electric power thus supplied can monitor, circuit structure is simple and easy In product realize the advantages that, be convenient for practical promotion and application.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 is the system structure diagram of meteorological data wireless monitor system provided by the invention.

Fig. 2 is the micro-control circuit unit in weather station terminal and reiving/transmitting state indicating circuit unit provided by the invention Circuit diagram.

Fig. 3 is the circuit diagram of the wireless transceiver circuit unit provided by the invention in weather station terminal.

Fig. 4 is the transmitting-receiving power amplifier of the half-duplex in weather station terminal and antenna element provided by the invention and power amplifier power supply The circuit diagram of control circuit unit.

Fig. 5 is power supply circuit unit and the operating voltage detection circuit unit provided by the invention of working in weather station terminal Circuit diagram.

Specific embodiment

With reference to the accompanying drawing and specific embodiment the present invention is further elaborated.It should be noted that for this The explanation of a little way of example is used to help understand the present invention, but and does not constitute a limitation of the invention.It is disclosed herein specific Structure and function details is only used for description example embodiments of the present invention.However, this hair can be embodied with many alternative forms It is bright, and be not construed as limiting the invention in embodiment set forth herein.

It will be appreciated that though term first, second etc. can be used herein to describe various units, these units are not answered When being limited by these terms.These terms are only used to distinguish a unit and another unit.Such as it can be single by first Member is referred to as second unit, and similarly second unit can be referred to as first unit, real without departing from example of the invention Apply the range of example.

It should be appreciated that the terms "and/or", only a kind of incidence relation for describing affiliated partner, expression can be with There are three kinds of relationships, for example, A and/or B, can indicate: individualism A, individualism B exist simultaneously tri- kinds of situations of A and B, The terms "/and " are to describe another affiliated partner relationship, indicate may exist two kinds of relationships, can be with for example, A/ and B Indicate: two kinds of situations of individualism A, individualism A and B, in addition, character "/" herein, typicallying represent forward-backward correlation object is A kind of "or" relationship.

It should be appreciated that when by unit referred to as with another unit " connection ", " connected " or " coupling " when, it can with it is another A unit is directly connected or couples or temporary location may exist.Relatively, it is referred to as with another unit " directly when by unit It is connected " or when " direct-coupling ", temporary location is not present.It should explain in a similar manner for describing the relationship between unit Other words (for example, " ... between " to " between directly existing ... ", " adjacent " is to " direct neighbor " etc.).

Terms used herein are only used for description specific embodiment, are not intended to limit example embodiments of the present invention.Such as Used herein, singular "a", "an" and "the" is intended to include plural form, unless phase is explicitly indicated in context The anti-meaning.It should also be understood that term " includes ", " including ", "comprising" and/or " containing " are as used herein, institute is specified The feature of statement, integer, step, operation, unit and/or component existence, and be not excluded for other one or more features, Quantity, step, operation, unit, component and/or their combination existence or increase.

It will be further noted that the function action occurred may be with the sequence of attached drawing appearance in some alternative embodiments It is different.Such as related function action is depended on, it can actually substantially be executed concurrently, or sometimes can be with phase Anti- sequence executes continuously show two figures.

Specific details is provided, in the following description in order to which example embodiment is understood completely.However ability Domain those of ordinary skill is it is to be understood that implementation example embodiment without these specific details.Such as it can be System is shown in block diagram, to avoid with unnecessary details come so that example is unclear.It in other instances, can not be with need not The details wanted shows well-known process, structure and technology, to avoid making example embodiment unclear.

Embodiment one

As shown in Fig. 1~5, the meteorological data wireless monitor system for being suitable for wisdom agricultural provided in this embodiment, Including background server, base station and several weather station terminals, wherein the background server can wirelessly communicate the connection base It stands, the base station can wirelessly communicate the connection weather station terminal, and the base station is whole from the weather station for acquisition of making an inventory The terminal unique identification information and meteorological record data at end, and by the terminal unique identification information and the meteorological record data Binding is uploaded to the background server；The weather station terminal includes micro-control circuit unit, wireless transceiver circuit unit, half Duplex transmitting-receiving power amplifier and antenna element, power amplifier power-supplying circuit unit and several meteorological sensors, wherein the meteorology Sensor can be, but not limited to include air velocity transducer, wind transducer, precipitation rain fall sensor, light intensity sensor, aerial temperature and humidity Any combination of any one or they in sensor, carbon dioxide sensor and PM2.5 sensor etc.；The microcontroller electricity Road unit, the wireless transceiver circuit unit and half-duplex transmitting-receiving power amplifier and antenna element successively communicate to connect, institute The power amplifier for stating micro-control circuit unit enables the controlled end that output end PAEN is electrically connected the power amplifier power-supplying circuit unit, institute The power supply output end VPA for stating power amplifier power-supplying circuit unit is electrically connected half-duplex transmitting-receiving power amplifier and antenna element Power supply incoming end, the output end IOT1~2 of the meteorological sensor are electrically connected the first input end of the micro-control circuit unit.

As shown in Figure 1, the weather station terminal is for adopting in the specific structure of the meteorological data wireless monitor system Collection near the farm area meteorological record data (including but not limited to include air speed data, wind direction data, rainfall data, Any one or they in light intensity data, aerial temperature and humidity data, carbon dioxide content data and PM2.5 content data etc. Any combination)；The base station is used to be used as intermediate node, on the one hand wakes up the weather station terminal for being in intermittence dormant state, And make an inventory and obtain the terminal unique identification information uploaded by weather station terminal and meteorological record data, on the other hand pass through channel radio Aforementioned terminals unique identification information and the binding of meteorological record data are uploaded to background server by letter mode.The background server For converging the collected meteorological record data of all weather station terminals, and give data storage and/or data are shown, it can be with It is based further on existing logic judgment rule and live meteorologic analysis is carried out to meteorological record data, to determine near farm area Weather current operations whether there is exception, and then realize monitoring and warning purpose, such as can be with when estimating and high wind conditions occur Timely signal an alert.In addition, when the base station is wireless communication node, for itself and the background server of effectively extending Communication distance, the meteorological data wireless monitor system further includes having centralized manager and repeater, wherein the centralized management Device and the repeater are respectively half-duplex transmitting/receiving wireless equipment；The background server can by by the centralized manager and The wireless communication link that several repeaters are constituted communicates to connect the base station.The repeater be used for as the base station with Relay node between the centralized manager, the centralized manager are used for collected in all weather station terminals institutes of convergence After meteorological record data, regularly all meteorological record data transmissions received are given to the background server.

As shown in Figure 1, the micro-control circuit unit is used for controlling terminal in the specific structure of the weather station terminal It carries out the mutual switching between suspend mode and awakening mode: (1) when determination enters suspend mode, controlling this unit and institute It states wireless transceiver circuit unit and enters energy conservation state, while controlling and enabling output end PAEN output the first level letter in power amplifier Number (such as low level signal) makes the power supply output end VPA of the power amplifier power-supplying circuit unit export low level voltage, into And electricity under the half-duplex transmitting-receiving power amplifier and antenna element is made to stop work；(2) when determination enters awakening mode, this list is controlled The first and described wireless transceiver circuit unit enters normal operating conditions, then reads and stores the meteorological note from meteorological sensor Data are recorded, while controlling and enabling output end PAEN output second electrical level signal (such as high trigger signal) in power amplifier, make institute The power supply output end VPA output high level voltage of power amplifier power-supplying circuit unit is stated, and then makes the half-duplex transmitting-receiving power amplifier Circuit and antenna element work on power, and are then receiving and dispatching power amplifier and antenna element and the wireless receipts by the half-duplex It is after Power Generation Road unit receives the terminal wakeup message from the base station, the terminal unique identification information being locally stored is gentle It is bundled in data upload message as recording data, receives and dispatches function finally by the wireless transceiver circuit unit and the half-duplex Electric discharge road and antenna element send the data upload message to the base station, realize meteorological data collection and upload purpose. As shown in Fig. 2, specifically, the micro-control circuit unit can be, but not limited to the microcontroller using model STM8L052C6TC Device chip U1 and its peripheral circuit.

The wireless transceiver circuit unit is used to carry out energy conservation state under the control of the micro-control circuit unit Mutual switching between normal operating conditions, wherein in normal operating conditions according to the finger of the micro-control circuit unit Show, controls the half-duplex transmitting-receiving power amplifier and antenna element carries out cutting between either simplex reception state and either simplex emission state It changes, and in either simplex reception state, receives and dispatches the analog telecommunications that power amplifier and antenna element receive to by the half-duplex Number carry out corresponding modulus processing (such as demodulated, decode and the processing such as message verification), the number letter for then obtaining processing Breath is sent to the micro-control circuit unit, and in either simplex emission state, to from the anti-of the micro-control circuit unit Feedforward information carries out corresponding digital-to-analogue processing processing such as (such as) being packaged, encoded and modulate, the simulation letter for then obtaining processing It number send and to receive and dispatch power amplifier to the half-duplex and antenna element carries out wireless transmission.As shown in figure 3, specifically, described wireless Transmission circuit unit can be, but not limited to the wireless transceiver chip U2 and its peripheral circuit using model CY693940LFXC.

The half-duplex transmitting-receiving power amplifier and antenna element are used for when working on power and in the wireless transceiver circuit The switching between either simplex reception state and either simplex emission state is carried out under the control of unit, to carry out half-duplex with the base station Communication.As shown in figure 4, specifically, half-duplex transmitting-receiving power amplifier and antenna element can be, but not limited to using model The single channel reverser U4 of the power amplifier chips U3 and model SN74LVC1G04DBVT of SE2611T and include the 6th capacitor C40 and 7th capacitor C41, wherein the LEN pin and CRX pin of the power amplifier chips U3 is electrically connected the single channel reverser U4's The A pin of Y pin, the PEN pin and CTX pin of the power amplifier chips U3 and the single channel reverser U4 are electrically connected institute The TX pin of half-duplex transmitting-receiving the switch terminal TX, the power amplifier chips U3 of wireless transceiver circuit unit are stated in the 6th electricity of connecting The radiofrequency signal connecting pin RFIN of the wireless transceiver circuit unit, the RX pin of the power amplifier chips U3 are electrically connected after appearance C40 The radiofrequency signal connecting pin RFIN of the wireless transceiver circuit unit is electrically connected after the 6th capacitor C40 that connects.In conjunction with institute The chip handbook of the power amplifier chips U3 and single channel reverser U4 is stated it is found that the A pin of the single channel reverser U4 is (as described The input pin of single channel reverser U4) for inputting the switch level from half-duplex transmitting-receiving switch terminal TX, then pass through The Y pin (output pin as the single channel reverser U4) of the single channel reverser U4 exports opposite levels to the power amplifier The LEN pin (LNA enable, low-noise amplifier enable pin) and CRX pin (WLAN receive of chip U3 Antenna switch control, WLAN receiving antenna switching control pin) so that the LEN pin and The CRX pin and the PEN pin (Power amplifier enable, power amplifier enable end) and the CTX draw The input of foot (WLAN transmit antenna switch control, WLAN transmitting antenna switching control pin) Level is different always, i.e., in the LEN pin and CRX pin input significant level signal (such as high level signal), The PEN pin and the CTX pin can input inactive level signal (such as low level signal), make the power amplifier chips U3 into Enter either simplex reception state, and in the LEN pin and CRX pin input inactive level signal (such as low level signal) When, the PEN pin and the CTX pin can input significant level signal (such as high level signal), make the power amplifier chips U3 enters either simplex emission state, and then may be implemented to carry out either simplex reception state under the control of the wireless transceiver circuit unit Switching purpose between either simplex emission state.In addition, the power amplifier chips U3 TX pin (WLAN transmit port, WLAN transmitting terminal) and RX pin (WLAN receive port, WLAN receiving end) respectively as feedback signal Input terminal and receive signal output end, communicate to connect the radiofrequency signal connecting pin RFIN of the wireless transceiver circuit unit, Realize the transmission purpose of unlike signal.

The power amplifier power-supplying circuit unit is for exporting different electricity under the control of the micro-control circuit unit Ordinary telegram pressure, so as to complete to receive and dispatch the half-duplex power amplifier and antenna element power on or under it is electrically operated, and then cooperate phase The awakening mode or suspend mode answered.As shown in figure 4, specifically, the power amplifier power-supplying circuit unit can be, but not limited to Using model MCP1824T-3302e/OT low pressure difference linearity voltage stabilizing chip U5 and include third capacitor Cap4, the 4th electricity Hold C13, the 5th capacitor C14 and second resistance R5, wherein the low pressure difference linearity voltage stabilizing chip U5'sPin (Shutdown pin closes pin) is electrically connected the microcontroller electricity as the controlled end of the power amplifier power-supplying circuit unit The power amplifier of road unit enables output end PAEN (Power amplifier enable), the low pressure difference linearity voltage stabilizing chip U5's VIN pin (i.e. input pin) is electrically connected one end and described the of battery power supply incoming end VBT, the third capacitor Cap4 One end of four capacitor C13, GND pin (i.e. grounding pin), the third capacitor of the low pressure difference linearity voltage stabilizing chip U5 The other end of the other end of Cap4 and the 4th capacitor C13 are grounded respectively, the VOUT of the low pressure difference linearity voltage stabilizing chip U5 Pin (i.e. output pin) is electrically connected the power supply output end VPA of the power amplifier power-supplying circuit unit, the 5th electricity Hold one end of C14 and one end of the second resistance R5, the PWRGD pin of the low pressure difference linearity voltage stabilizing chip U5 is electrically connected institute State the other end of second resistance R5, the other end ground connection of the 5th capacitor C14.In conjunction with the low pressure difference linearity voltage stabilizing chip U5 Chip handbook it is found that the low pressure difference linearity voltage stabilizing chip U5'sIt, can be in institute when pin input low level signal Output low level voltage at VOUT pin is stated, interrupts to the half-duplex and receives and dispatches power amplifier and antenna element power supply, and in institute State low pressure difference linearity voltage stabilizing chip U5'sWhen pin input high level signal, high electricity can be exported at the VOUT pin Ordinary telegram pressure starts to the half-duplex and receives and dispatches power amplifier and antenna element power supply, so as to complete to receive the half-duplex Hair power amplifier and antenna element power on or under it is electrically operated, while also having the advantages that the operating delay time is short.

In addition, the weather station terminal should also include secondary battery unit, to be the micro-control circuit unit, institute State wireless transceiver circuit unit, half-duplex transmitting-receiving power amplifier and antenna element and the power amplifier power-supplying circuit unit It is supported Deng electric energy is provided, wherein the secondary battery unit can be, but not limited to as lithium battery or other batteries.

From there through the aforementioned detailed description to meteorological data wireless monitor system and weather station terminal, on the one hand utilize by Various meteorological notes near farm area may be implemented in the telecommunication link that weather station terminal, base station and background server are constituted The concentrated collection and long-distance Log server purpose of data are recorded, is on the other hand utilized in weather station terminal side by micro-control circuit unit, function The Energy Saving Control access that power-supplying circuit unit and half-duplex transmitting-receiving power amplifier and antenna element are constituted is put, it can be in suspend mode When power amplifier and antenna element received and dispatched to the half-duplex carry out lower electric power-save operation, so as to periodicity or intermittence Start messaging, realize the purpose of end cell energy conservation and delay cruising ability, supervises the entire meteorological data wirelessly Examining system and weather station terminal are more applicable in wisdom agricultural scene.

In order to further realize end cell energy conservation purpose, the aforementioned meteorological data wireless monitor system suitable for wisdom agricultural The working method of system can also include weather station terminal as follows, the specific works method of base station and background server.

(1) the specific works method of the weather station terminal includes suspend mode and awakening mode, wherein described to stop Sleep mode can be, but not limited to include that steps are as follows S101:

S101. after determining into suspend mode, micro-control circuit unit and wireless transceiver circuit unit enter energy saving work Make state, while enabling output end PAEN in power amplifier by the control of micro-control circuit unit and exporting the first level signal, makes the function Put the power supply output end VPA output low level voltage of power-supplying circuit unit, the half-duplex transmitting-receiving power amplifier and antenna Electricity is stopped work under unit.

In the step S101, if determined according to the actual situation into suspend mode by the micro-control circuit unit It is fixed, once into suspend mode, the micro-control circuit unit and the wireless transceiver circuit unit all will be with most power save modes Maintain most basic work, such as timework etc., while half-duplex transmitting-receiving power amplifier and antenna element by lower electricity and Non-energy-consumption loss so can save a large amount of electric energy in the dormant stage.

In addition, the awakening mode can be, but not limited to include that steps are as follows S201~S205.

S201. after determining into awakening mode, micro-control circuit unit and wireless transceiver circuit unit enter normal work Make state, while being read by micro-control circuit unit and being stored the meteorological record data from meteorological sensor, by microcontroller electricity Unit control in road enables output end PAEN output second electrical level signal in power amplifier, makes the confession of the power amplifier power-supplying circuit unit Electricity output end VPA output high level voltage, the half-duplex transmitting-receiving power amplifier and antenna element work on power, wherein described Meteorological record data can be, but not limited to include air speed data, wind direction data, rainfall data, light intensity data, aerial temperature and humidity number According to any combination of any one or they in, carbon dioxide content data and PM2.5 content data etc..

In the step S201, if determined according to the actual situation into awakening mode by the micro-control circuit unit It is fixed, once into awakening mode, the micro-control circuit unit and the wireless transceiver circuit unit will all restore to work normally, Then read and store the meteorological record data from meteorological sensor, while half-duplex transmitting-receiving power amplifier and antenna list Member will power on, and prepare to receive or emit idle message at any time.Consider that the weather station terminal is configured with multiple and different types Meteorological sensor, in order to be compatible with the meteorological record data of different data format, with facilitate it is subsequent carry out centralization data deposit Storage, upload, displaying and reading analysis etc., optimization, the micro-control circuit unit successively obtains each gas according to polling mode The meteorological record data of image sensor, and can be, but not limited to store different meteorological record data according to following unified format: Sensor classification field, sensor parameters field, sensor manufacturer field, sensor description field, sensing data payload The random order group of the effective bit field of field, sensing data, terminal unique identification field and sensor acquisition data field etc. It closes, wherein the sensor classification field is used to record the type of corresponding meteorological sensor, and the sensor parameters field is used for The configuration parameter of corresponding meteorological sensor is recorded, the sensor manufacturer field is used to record the manufacture of corresponding meteorological sensor Quotient's information, the sensor description field are used to record the functional circuit information of corresponding meteorological sensor, the sensing data Payload field is used to record the acquisition data length of corresponding meteorological sensor, and the effective bit field of sensing data is for recording The acquisition data start bit information and/or last bit information of corresponding meteorological sensor, the terminal unique identification field is for recording The unique identification information of the affiliated weather station terminal of corresponding meteorological sensor, the sensor acquisition data field is for record pair Answer the acquisition data content of meteorological sensor.

S202. by micro-control circuit unit by wireless transceiver circuit unit control the half-duplex receive and dispatch power amplifier and Antenna element enters either simplex reception state: if receiving the terminal wakeup message from base station on schedule on waking up channel, successively Step S203~S205 is executed, otherwise determines and enters suspend mode.

In the step S202, the terminal wakeup message is from the base station and for waking up intermittence suspend mode The dedicated idle message of terminal (the weather station terminal i.e. in the present embodiment) wakes up probability to improve terminal, preferably passes through As under type is sent: on waking up channel and within the first period continuity the period send multiple terminals wake-ups and disappear Breath, wherein the terminal wakeup message includes the first period duration information and current message tranmitting data register information, and described first Period duration information is used to indicate the duration t of first period, and the current message tranmitting data register information is used to indicate from The initial time of one period rises to the timestamp t of current message sending instant_x.It is configured by aforementioned information, intermittence can be made Suspend mode terminal is after obtaining the first period duration information and the current message tranmitting data register information, it is known that described in epicycle eventually The transmission end time of wakeup message is held, and then a longer temporary sleep time (i.e. t-t can be set_x) be timed Suspend mode (enters of short duration suspend mode), wakes up again after directly sleeping transmission and (is again introduced into awakening mode), thus Conducive to terminal energy conservation.In addition, the wake-up channel is to be exclusively used in launch terminal in eating dishes without rice or wine to wake up related news (including but not limited to The terminal wakeup message) dedicated channel.

Optimize in detail, the duration t of first period is greater than the sleep cycle T of intermittence suspend mode terminal, the sleep Cycle T includes the period sleep time T of intermittence suspend mode terminal_sleepWith period awakening duration T_wake, the terminal wakeup message Sending cycle be less than wireless terminal period awaken duration T_wake.It is arranged by aforementioned duration, it can be ensured that intermittence suspend mode Terminal can completely receive the terminal wakeup message in the awakening duration of any one sleep cycle, prevent to occur waking up to lose Leakage.Citing, the duration T if the period awakens_wakeFor 100ms, the period sleep time T_sleepFor 3900ms, then intermittence The sleep cycle of suspend mode terminal is 4 seconds, and the sending cycle may be designed as 60ms (assuming that when the transmission of the terminal wakeup message A length of 50ms reserves the time slot spacing of 10ms), the duration of first period may be designed as 4020ms, can continuously transmit 67 The secondary terminal wakeup message.

Optimize in detail, to wake up all intermittence suspend mode terminals, the terminal wakeup message may be designed as broadcasting Message, for intermittence suspend mode terminal, it may not be necessary to know the terminal wakeup message identity of the sender and/or Recipient's identity, therefore the terminal wakeup message also may include source address invalid bit and/or broadcast address invalid bit, In, the source address invalid bit, which is used to indicate in the terminal wakeup message, is not present source address information, the broadcast address Invalid bit is used to indicate in the terminal wakeup message there is no broadcast address information, and the source address information is used to indicate institute The identity of the sender of terminal wakeup message is stated, the broadcast address information is used to indicate recipient's body of the terminal wakeup message Part.By the address default configuration of aforementioned terminals wakeup message, the message-length that can effectively shorten (can generally shorten 4 bytes or 8 Byte) and duration is sent, not only it is conducive to sender of the message's energy conservation, improves channel utilization, the intermittence that can also effectively shorten is stopped The period awakening duration of dormancy terminal, is further conducive to terminal energy conservation.

S203. the terminal unique identification information being locally stored and meteorological record data are bundled in data upload message.

It is whether legal in order to verify base station before the step S203, " pseudo-base station " problem is prevented, and avoid Meteorological record data are defrauded of, in the present embodiment, optimization, the terminal wakeup message will also include password authentication selection Information and password information, such micro-control circuit unit is before data packing: also needing first to select information according to the password authentication The correspondence password content prestored is searched in local storage, then judges whether the password content found is believed with the password Breath is consistent, and license data is packaged if consistent, otherwise refuses data and is packaged, wherein the password authentication selection information is for referring to Show password unique identification corresponding with the password information.It is closed since password authentication selection information is corresponding with password content System is preset in advance in legal weather station terminal, and selects information with the password authentication being preset in legitimate base station in advance It is consistent with the corresponding relationship of the password information, and aforementioned corresponding relationship is not preset in " pseudo-base station ", therefore the meteorology Terminal of standing can voluntarily determine whether the base station for initiating wake actions is legal according to the check results of password content and password information, And only just allow data packing when confirming legal and upload, it is possible thereby to effectively evade, " pseudo-base station " transmission is illegal to obtain meteorology The security risk of data is recorded, realizes the purpose to ensure information safety in data upload process.

Optimization, in order to ensure the transmission safety of the meteorological record data, prevent from being cut in the air by other " hacker " websites Take, it is therefore necessary to aforementioned important information is encrypted, therefore in the present embodiment, weather station terminal by terminal only One identification information and meteorological record data are bundled to before data upload message, and a kind of add also is randomly choosed from local storage Close algorithm/and encryption key encrypt the terminal unique identification information and/or the meteorological record data, and in institute It states and inserts Encryption Algorithm selection information/and encryption key selection information in data upload message, wherein the Encryption Algorithm selection Information, which is used to indicate, uses encryption during encrypting the terminal unique identification information and/or the meteorological record data The algorithm unique identification of algorithm, encryption key selection information be used to indicate encrypt the terminal unique identification information and/ Or during the meteorological record data used encryption key key unique identification.Wherein, the Encryption Algorithm selection The corresponding relationship of information and Encryption Algorithm is preset in advance in weather station terminal, and be preset in legitimate base station in advance described in Encryption Algorithm selects information consistent with the corresponding relationship of decipherment algorithm；The encryption key selection information is corresponding with encryption key Relationship is preset in advance in weather station terminal, and selects information and solution with the encryption key being preset in legitimate base station in advance The corresponding relationship of key is consistent.Since " hacker " equipment cannot predict aforementioned corresponding relationship in advance, it is difficult to crack to obtain The terminal unique identification information and/or the meteorological record data, can further improving information safety.

Before the step S203, optimization, when the terminal wakeup message also includes upload task unique identification With temporary sleep duration information, then after wirelessly receiving the terminal wakeup message, by micro-control circuit unit according on described Biography task unique identification information judges whether to be completed corresponding meteorological record data and uploads task, if it is determined that be completed, then root It is determined according to the temporary sleep duration information and enters provisional suspend mode.So can no longer execute subsequent step S203~ S205 avoids repeated data from uploading, and realizes timely suspend mode, is further conducive to terminal energy conservation.

S204. by micro-control circuit unit by wireless transceiver circuit unit control the half-duplex receive and dispatch power amplifier and Antenna element enters either simplex emission state: sending the data upload to base station by channel competition mechanism on a data channel and disappears Breath.

In the step S204, the data channel be eat dishes without rice or wine in be exclusively used in transmitting meteorological data related news (including But be not limited to the data upload message) dedicated channel, may be the same or different with the wake-up channel.

S205. by micro-control circuit unit by wireless transceiver circuit unit control the half-duplex receive and dispatch power amplifier and Antenna element enters either simplex reception state: if not receiving data corresponding with the data upload message on schedule on an acknowledgment channel Confirmation message is uploaded, then determines to send failure, then return step S204 retransmits the data upload message, until described The sending times of data upload message reach maximum retransmission, finally determine and enter suspend mode, otherwise determine to send successfully, It directly determines and enters suspend mode.

In the step S205, the acknowledgement channel be eat dishes without rice or wine in be exclusively used in transmitting transmission confirmation related news (including But be not limited to the data and upload confirmation message) dedicated channel, can phase with the wake-up channel or the data channel Together, it can also be different.In addition optimize, if it includes the second temporary sleep duration information that the data, which upload confirmation message, Weather station terminal is temporarily stopped after wirelessly receiving the data and uploading confirmation message, by micro-control circuit unit according to described second Dormancy duration information, which determines, enters provisional suspend mode.Since weather station terminal is to send the number by channel competition mechanism According to upload message, therefore there is the phenomenon that leading to reception failure because of risk of collision etc., it is therefore necessary to inform whether terminal connects Harvest function, and when informing receives successfully, it can inform and number is completed by the configuration of the second temporary sleep duration information The duration of suspend mode can be immediately entered according to the weather station terminal of upload, specific duration can be, but not limited to the institute that makes an inventory according to completion There is that is going up transmission terminal to estimate duration to be arranged, for terminal of having made an inventory, since (period is used in preset period of time In completion to the task of making an inventory of other terminals of not making an inventory) it is interior without waking up again and feeding back meteorological record data, therefore not only may be used It is eating dishes without rice or wine to reduce a large amount of data upload message, is realizing the purpose for reducing message transition collision probability, it is whole that all weather stations are rapidly completed The data at end upload task, so that weather station terminal is entered a longer dormant state, avoid consuming unnecessary energy, most It is conducive to terminal energy conservation eventually and extends cruise duration.

From there through the detailed step of aforementioned suspend mode and awakening mode, it can further promote weather station terminal complete Suspend mode energy conservation is carried out at various inessential awakening time slots are made full use of in data acquisition and upload procedure, reaches optimal section It can purpose.In addition, can take or steal meteorological record number by applying password verification scheme and information encryption mechanism to avoid cheated According to the purpose that realization ensures information safety in data upload process.

(2) the specific works method of the base station can be, but not limited to include: in wireless receiving to from background server Terminal make an inventory after initiation message, into terminal bay dot pattern: transmit wirelessly the terminal wakeup message on waking up channel, and The data upload message from weather station terminal is received by interception data channel, and on an acknowledgment channel to weather station terminal It feeds back data corresponding with data upload message and uploads confirmation message, finally believe the terminal unique identification in data upload message Breath and the binding of meteorological record data are uploaded to background server.

The make an inventory producing method of initiation message of the terminal can be manual intervention generation, be also possible to timing from movable property It is raw, it needs to include base station address information, wherein the base station address information, which is used to indicate, to be needed to immediately enter terminal and make an inventory mould The base station of formula, then by base station judge the base station address information whether with home base stations address matching, if matching, enter eventually End plate dot pattern: waking up all weather station terminals in a dormant state, and collects the meteorological note from each weather station terminal Data are recorded, and the meteorological record data of collection are uploaded to background server.Optimization, in order to promote the operation speed of base station Degree, avoids the occurrence of data redundancy situation, further include as follows: local cache data is removed when entering terminal bay dot pattern in base station, And it makes an inventory to backstage server feedback terminal and starts success message.In addition, in order to avoid repeated priming is made an inventory task, optimization, Base station is made an inventory initiation message before terminating terminal bay dot pattern if receiving the terminal from background server again, is taken to backstage Business device feedback terminal, which is made an inventory, starts failed message, wherein the terminal, which is made an inventory, starts failed message comprising in instruction letter of making an inventory Breath.It so may be notified that background server, currently make an inventory in progress terminal, be not necessarily to repeated priming.

Optimization, if the terminal is made an inventory, initiation message also includes mode indication information of making an inventory, when the mode of making an inventory refers to When showing that information is designated as long disk mode, base station is immediately finished end after end message receiving the terminal from background server and make an inventory End plate dot pattern, and when the mode indication information of making an inventory is designated as fast disk mode, base station are made an inventory starting according to the terminal Duration information timing of making an inventory in message terminates terminal bay dot pattern or makes an inventory end receiving the terminal from background server Terminal bay dot pattern is immediately finished after message.The mode indication information of making an inventory be used to indicate base station be into long disk mode or Fast disk mode: (1) base station is after entering long disk mode, it will ceaselessly collects the meteorological record number from weather station terminal by turns According to and return to background server, make an inventory that (its producing method can make an inventory end message with the terminal until receiving the terminal Initiation message is consistent) after just stop；(2) base station is after entering fast disk mode, it will periodically collects from weather station terminal Meteorological record data simultaneously return to background server, when timing (countdown or along timing), which reaches, makes an inventory duration or receive institute It states terminal and makes an inventory and just stop (can terminating in advance) after end message.It, can regularly or irregularly by both modes Ground carries out terminal and makes an inventory, and meets flexible Application demand.

In addition, after terminal unique identification information and meteorological record the data binding by data upload message is uploaded to The mode of platform server can make an inventory in the terminal and be set in advance in initiation message, that is, optimize, and terminal starting of making an inventory disappears Breath includes that data return to instruction information, then when data return instruction information, which is designated as data, directly to be returned, by base station The newest terminal unique identification information received and the binding of meteorological record data are periodically uploaded to background server, and work as institute State data return instruction information be designated as reading data return when, base station is receiving the data read request from background server After message, terminal unique identification information and meteorological record the data binding that caching receives are uploaded to background server.

Optimization, base station is after entering terminal bay dot pattern, message packet loss that can also periodically on statistical data channel Rate, then according to message packet loss and the mapping relations for uploading terminal number, obtain going up transmission terminal estimate number, Number is subsequently estimated according to this and estimates all remaining upload durations for going up transmission terminal and completing upload task, last basis should Residue uploads duration and the temporary sleep duration information is arranged.Due to message packet loss be largely by message transition collision and It is caused, therefore by the available message packet loss of routine test and the mapping relations for not uploading terminal number, which closes System can be the mapping relations of a pair of of numberical range, such as 0~1% message packet loss, corresponding not upload number of terminals Mesh can be 0~50；For 2~3% message packet loss, the corresponding terminal number that do not upload can be 100~200.In addition, estimating Number and the remaining duration that uploads of estimation again may be by routine test acquisition.

It advanced optimizes, is uploading number of terminals to enable the weather station terminal for not completing data upload to know Mesh can make base station send terminal so that the back off time for sending data upload message by channel competition mechanism is set dynamically Before wakeup message or data upload confirmation message, the number of estimating is added on terminal wakeup message or data to be sent It passes in confirmation message.Such weather station terminal is after entering either simplex reception state, if receiving includes to go up transmission terminal to estimate The terminal wakeup message of number or data not corresponding with the data upload message upload confirmation message, then can be by microcontroller electricity Road unit is going up transmission terminal and estimating number and update according to this to be arranged through the channel competition mechanism transmission data upload message Back off time.Wherein, the weather station terminal can according to the concrete mode for estimating number update setting back off time are as follows: Estimate number it is larger when longer current back off time or maximum back off time are set, estimate number it is smaller when setting it is shorter Current back off time or maximum back off time can further be conducive to reduce message packet loss from there through dynamic setting back off time Rate uploads tasks with all data are rapidly completed.

Optimization, encrypted the terminal unique identification information and/or the gas are obtained in order to enable base station to decrypt It can include that Encryption Algorithm selection information/and encryption key select information, base station as recording data, in the data upload message After receiving the data upload message, first information is selected to search pair prestored in local storage according to the Encryption Algorithm It answers decipherment algorithm/and selects information to search the correspondence decruption key prestored in local storage according to the encryption key, so The terminal unique identification information and/or the meteorological note are obtained using the decipherment algorithm found/and decryption key decryption afterwards Record data.

(3) the specific works method of the background server, can be, but not limited to include: wireless receiving and bind storage eventually Hold unique identification information and meteorological record data.

From there through the specific works method of aforementioned (1), (2) and (3), various meteorological record data may be implemented from scene The complete procedure for collecting backstage storage processing, enables base station and background server quick obtaining meteorological record data, ensures The timeliness of meteorological data wireless monitor is further conducive to the wisdom of existing agricultural.

Optimization, further include reiving/transmitting state indicating circuit unit, wherein the transmitting-receiving shape in the weather station terminal State indicating circuit unit includes bidirectional luminescence diode (LED) s, 3rd resistor R12 and the 4th resistance R16, the bidirectional luminescence two One end of pole pipe LEDs is electrically connected the second output terminal LEDB, the bidirectional luminescence diode (LED) s of the micro-control circuit unit The other end be electrically connected one end of the 3rd resistor R12 and one end of the 4th resistance R16, the 3rd resistor The other end of R12 is electrically connected the third output end LEDA of the micro-control circuit unit, another termination of the 4th resistance R16 Ground.As illustrated in fig. 1 and 2, by the way that the reiving/transmitting state indicating circuit unit is arranged, can emit in either simplex reception state or either simplex When state, varying level is exported by the second output terminal LEDB and third output end LEDA in the micro-control circuit unit, So that the bidirectional luminescence diode (LED) s is issued different colors to indicate corresponding reiving/transmitting state, such as issues feux rouges instruction list Work emission state issues green light and indicates either simplex reception state, and then can carry out equipment detection and verifying in favor of user.

Optimization, further include work power supply circuit unit and operating voltage detection circuit list in the weather station terminal Member, wherein the detection voltage output end ADCW of the operating voltage detection circuit unit is electrically connected the micro-control circuit unit The second input terminal.As described in Fig. 1 and 5, end cell can detecte by configuring the operating voltage detection circuit unit Whether work power supply is normal, can be discovered if abnormal, by the micro-control circuit unit, so as to base station and background service Device, which reports to send, indicates that abnormal warning message occurs in corresponding electric power thus supplied.

To sum up, using meteorological data wireless monitor system and its work side for being used for wisdom agricultural provided by the present embodiment Method has the following technical effect that

(1) present embodiments provide one kind can extend end cell cruising ability be able to achieve again meteorological data concentrate acquisition And the novel meteorological data wireless monitor system of teletransmission, it on the one hand utilizes by weather station terminal, base station and background server structure At telecommunication link, the concentrated collection and long-distance Log server mesh of various meteorological record data near farm area may be implemented , it on the other hand utilizes in weather station terminal side and is received by micro-control circuit unit, power amplifier power-supplying circuit unit and half-duplex Send out the Energy Saving Control access that power amplifier and antenna element are constituted, can in suspend mode to the half-duplex receive and dispatch power amplifier and Antenna element carries out lower electric power-save operation, starts messaging so as to periodicity or intermittence, realizes end cell section The purpose that can and postpone cruising ability is more applicable for the entire meteorological data wireless monitor system and weather station terminal In wisdom agricultural scene；

Multiple embodiments described above are only schematical, wherein described, unit can as illustrated by the separation member It is physically separated with being or may not be, component shown as a unit may or may not be physics list Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness Labour in the case where, it can understand and implement.

Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers It enables with so that a computer equipment executes method described in certain parts of each embodiment or embodiment.

The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features.And these modification or Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Finally it should be noted that the present invention is not limited to above-mentioned optional embodiment, anyone is in enlightenment of the invention Under can all obtain other various forms of products.Above-mentioned specific embodiment should not be understood the limit of pairs of protection scope of the present invention System, protection scope of the present invention should be subject to be defined in claims, and specification can be used for explaining that right is wanted Seek book.

Claims

1. a kind of meteorological data wireless monitor system suitable for wisdom agricultural, it is characterised in that: including background server, base station With several weather station terminals, wherein the background server can wirelessly communicate the connection base station, and the base station can wirelessly communicate Connect the weather station terminal, terminal unique identification information that the base station is used to make an inventory obtain from the weather station terminal and Meteorological record data, and the terminal unique identification information and meteorological record data binding are uploaded to the background service Device；

The weather station terminal includes micro-control circuit unit, wireless transceiver circuit unit, half-duplex transmitting-receiving power amplifier and day Line unit, power amplifier power-supplying circuit unit and several meteorological sensors, wherein the meteorological sensor includes wind speed sensing Device, wind transducer, precipitation rain fall sensor, light intensity sensor, aerial temperature and humidity sensor, carbon dioxide sensor and PM2.5 are passed Any combination of any one or they in sensor；

The micro-control circuit unit, the wireless transceiver circuit unit and half-duplex transmitting-receiving power amplifier and antenna element It successively communicates to connect, the power amplifier of the micro-control circuit unit enables output end (PAEN) and is electrically connected the power amplifier power supply control electricity The controlled end of road unit, the power supply output end (VPA) of the power amplifier power-supplying circuit unit are electrically connected the half-duplex transmitting-receiving The output end (IOT1~2) of the power supply incoming end of power amplifier and antenna element, the meteorological sensor is electrically connected the micro-control The first input end of circuit unit processed.

2. a kind of meteorological data wireless monitor system suitable for wisdom agricultural as described in claim 1, it is characterised in that:

The power amplifier power-supplying circuit unit uses the low pressure difference linearity voltage stabilizing chip of model MCP1824T-3302e/OT It (U5) and include third capacitor (Cap4), the 4th capacitor (C13), the 5th capacitor (C14) and second resistance (R5), wherein institute State low pressure difference linearity voltage stabilizing chip (U5)Pin is electrically connected as the controlled end of the power amplifier power-supplying circuit unit The power amplifier for connecing the micro-control circuit unit enables output end (PAEN), and the VIN of the low pressure difference linearity voltage stabilizing chip (U5) draws Foot is electrically connected battery power supply incoming end (VBT), one end of the third capacitor (Cap4) and the 4th capacitor (C13) One end, the other end and the described 4th of the GND pin of the low pressure difference linearity voltage stabilizing chip (U5), the third capacitor (Cap4) The other end of capacitor (C13) is grounded respectively, and the VOUT pin of the low pressure difference linearity voltage stabilizing chip (U5) is electrically connected described The power supply output end (VPA) of power amplifier power-supplying circuit unit, one end of the 5th capacitor (C14) and the second resistance (R5) the PWRGD pin of one end, the low pressure difference linearity voltage stabilizing chip (U5) is electrically connected the another of the second resistance (R5) End, the other end ground connection of the 5th capacitor (C14).

3. a kind of meteorological data wireless monitor system suitable for wisdom agricultural as described in claim 1, it is characterised in that: institute It states half-duplex transmitting-receiving power amplifier and antenna element uses the power amplifier chips (U3) and model of model SE2611T The single channel reverser (U4) of SN74LVC1G04DBVT and include the 6th capacitor (C40) and the 7th capacitor (C41), wherein described The LEN pin and CRX pin of power amplifier chips (U3) are electrically connected the Y pin of the single channel reverser (U4), the power amplifier core The PEN pin and CTX pin of piece (U3) and the A pin of the single channel reverser (U4) are electrically connected the wireless receiving and dispatching electricity Switch terminal (TX) is received and dispatched in the half-duplex of road unit, and the TX pin of the power amplifier chips (U3) is in the 6th capacitor (C40) of connecting It is electrically connected the radiofrequency signal connecting pin (RFIN) of the wireless transceiver circuit unit afterwards, the CX pin of the power amplifier chips (U3) exists The 6th capacitor (C40) of connecting is electrically connected the radiofrequency signal connecting pin (RFIN) of the wireless transceiver circuit unit afterwards.

4. a kind of work as described in claims 1 to 3 any one suitable for the meteorological data wireless monitor system of wisdom agricultural Make method, it is characterised in that:

(1) weather station terminal includes suspend mode and awakening mode；

The suspend mode comprises the following steps that

S101. after determining into suspend mode, micro-control circuit unit and wireless transceiver circuit unit enter energy conservation shape State, while enabling output end (PAEN) in power amplifier by the control of micro-control circuit unit and exporting the first level signal, make the power amplifier The power supply output end (VPA) of power-supplying circuit unit exports low level voltage, the half-duplex transmitting-receiving power amplifier and antenna Electricity is stopped work under unit；

The awakening mode comprises the following steps that

S201. after determining into awakening mode, micro-control circuit unit and wireless transceiver circuit unit enter normal work shape State, while being read by micro-control circuit unit and storing the meteorological record data from meteorological sensor, by micro-control circuit list Member control enables output end (PAEN) output second electrical level signal in power amplifier, makes the power supply of the power amplifier power-supplying circuit unit Output end (VPA) output high level voltage, the half-duplex transmitting-receiving power amplifier and antenna element work on power, wherein described Meteorological record data include that air speed data, wind direction data, rainfall data, light intensity data, aerial temperature and humidity data, carbon dioxide contain Measure any combination of any one or they in data and PM2.5 content data；

S202. the half-duplex is controlled by wireless transceiver circuit unit by micro-control circuit unit and receives and dispatches power amplifier and antenna Unit enters either simplex reception state: if receiving the terminal wakeup message from base station on schedule on waking up channel, successively executing Otherwise step S203~S205 is determined and is entered suspend mode；

S204. the half-duplex is controlled by wireless transceiver circuit unit by micro-control circuit unit and receives and dispatches power amplifier and antenna Unit enters either simplex emission state: sending the data upload message to base station by channel competition mechanism on a data channel；

S205. the half-duplex is controlled by wireless transceiver circuit unit by micro-control circuit unit and receives and dispatches power amplifier and antenna Unit enters either simplex reception state: uploading if not receiving data corresponding with the data upload message on schedule on an acknowledgment channel Confirmation message then determines transmission failure, and then return step S204 retransmits the data upload message, until the data The sending times of upload message reach maximum retransmission, finally determine and enter suspend mode, otherwise determine to send successfully, directly It determines and enters suspend mode；

(2) after initiation message is made an inventory to the terminal from background server in wireless receiving in base station, into terminal bay dot pattern: It wakes up and transmits wirelessly the terminal wakeup message on channel, and the data from weather station terminal are received by interception data channel Upload message, and feed back data upload confirmation corresponding with data upload message to weather station terminal on an acknowledgment channel and disappear Breath, finally by data upload message terminal unique identification information and meteorological record data binding be uploaded to background server；

5. a kind of working method of the meteorological data wireless monitor system suitable for wisdom agricultural as claimed in claim 4, It is characterized in that:

Weather station terminal is before being bundled to data upload message for terminal unique identification information and meteorological record data, from local A kind of Encryption Algorithm/and encryption key are randomly choosed in memory block to the terminal unique identification information and/or described meteorological are remembered Record data are encrypted, and pass insert Encryption Algorithm selection information/and encryption key selection letter in message on the data Breath, wherein the Encryption Algorithm selection information, which is used to indicate, is encrypting the terminal unique identification information and/or the meteorological note The algorithm unique identification of used Encryption Algorithm during record data, the encryption key selection information, which is used to indicate, to be encrypted The key of used encryption key is uniquely marked during the terminal unique identification information and/or the meteorological record data Know；

Base station first selects information to search in local storage after receiving the data upload message according to the Encryption Algorithm The correspondence decipherment algorithm/that prestores and information is selected to search the corresponding decryption prestored in local storage according to the encryption key Then key obtains the terminal unique identification information and/or described using the decipherment algorithm found/and decryption key decryption Meteorological record data.

6. a kind of working method of the meteorological data wireless monitor system suitable for wisdom agricultural as claimed in claim 4, It is characterized in that:

If the terminal wakeup message includes upload task unique identification information and temporary sleep duration information, weather station is whole Sentenced by micro-control circuit unit according to the upload task unique identification information after wirelessly receiving the terminal wakeup message at end It is disconnected that corresponding meteorological record data upload task whether is completed, if it is determined that being completed, then according to long letter when the temporary sleep Breath, which determines, enters provisional suspend mode.

7. a kind of working method of the meteorological data wireless monitor system suitable for wisdom agricultural as claimed in claim 4, It is characterized in that:

If the terminal is made an inventory, initiation message includes mode indication information of making an inventory, when the mode indication information instruction of making an inventory When for long disk mode, base station is immediately finished terminal after end message and makes an inventory mould receiving the terminal from background server and make an inventory Formula, and when the mode indication information of making an inventory is designated as fast disk mode, base station is made an inventory according to the terminal in initiation message Duration information timing of making an inventory terminates terminal bay dot pattern or stands after end message receiving the terminal from background server and making an inventory Terminate terminal bay dot pattern.

8. a kind of working method of the meteorological data wireless monitor system suitable for wisdom agricultural as claimed in claim 4, It is characterized in that:

If the terminal is made an inventory, initiation message includes that data return to instruction information, when the data return to instruction information instruction When directly being returned for data, periodically the newest terminal unique identification information received and meteorological record data are bound by base station It is uploaded to background server, and when the data return to instruction information and are designated as reading data and return, base station comes from receiving After the data read request message of background server, the terminal unique identification information and meteorological record data that caching is received are bound It is uploaded to background server.

9. a kind of working method of the meteorological data wireless monitor system suitable for wisdom agricultural as claimed in claim 4, It is characterized in that:

Local cache data is removed when entering terminal bay dot pattern in base station, and makes an inventory starting to backstage server feedback terminal Success message；

It makes an inventory initiation message if receiving the terminal from background server again, backward before terminating terminal bay dot pattern base station Platform server feedback terminal, which is made an inventory, starts failed message, wherein the terminal, which is made an inventory, starts failed message comprising in finger of making an inventory Show information.

10. a kind of working method of the meteorological data wireless monitor system suitable for wisdom agricultural as claimed in claim 4, It is characterized in that:

In the step S201, micro-control circuit unit successively obtains the meteorological note of each meteorological sensor according to polling mode Data are recorded, and store different meteorological record data: sensor classification field, sensor parameters word according to following unified format Section, sensor manufacturer field, sensor description field, sensing data payload field, the effective bit field of sensing data, end Hold the combined in any order of unique identification field and sensor acquisition data field.