CN203274809U - Wireless sensor network node for monitoring crop growth and environment information - Google Patents
Wireless sensor network node for monitoring crop growth and environment information Download PDFInfo
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- CN203274809U CN203274809U CN 201320338761 CN201320338761U CN203274809U CN 203274809 U CN203274809 U CN 203274809U CN 201320338761 CN201320338761 CN 201320338761 CN 201320338761 U CN201320338761 U CN 201320338761U CN 203274809 U CN203274809 U CN 203274809U
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Abstract
The utility model relates to a wireless sensor network node for monitoring crop growth and environment information and belongs to the technical field of the crop monitoring device. The wireless sensor network node comprises a wireless microcontroller which is respectively connected with a built-in battery, an external connection power supply, a red LED, a green LED, an environment information perception sensor, a ZigBee network module, an antenna, a first button, a second button, and an RS232 serial port interface. An NDVI sensor is connected with the RS232 serial port interface; a solar panel is connected with a built-in battery; and the wireless microcontroller employs a JENNIC chip. The wireless sensor network node is comparably simple in installation, low in cost and low in power consumption, uses two power supply methods of the built-in battery and the external connection power supply, and can work stably; and the solar panel uses the solar energy to charge the built-in battery so that the development trend of using clean energy is met.
Description
Technical field
The utility model relates to a kind of wireless sensor network node for monitoring crop growth and environmental information, belongs to crop growth monitoring device technique field.
Background technology
Wireless sensor network by a large amount of low costs, low-power consumption, have the self-organization distribution network system that the microsensor node of radio communication and computing power forms, relate to the multi-door subjects such as wireless communication technology, sensor technology, embedded technology and micromotor technology.
Wireless sensor network mainly contains greenhouse environment parameter monitoring, land for growing field crops environmental monitoring, the monitoring of animals and plants physiological ecological etc. at Application in agriculture at present.Wireless sensor network has very strong application relativity, needs supporting different hardware platform and software systems under different application requires.Along with the continuous popularization of wireless sensor network, the Development and Production with sensor node of generic features will become a kind of new trend.
The gordian technique of wireless sensor network comprises networking model, Routing Protocol, energy management etc.Networking model has flat networking model, the hierarchical networking model based on sub-clustering, mesh network (mesh) pattern and mobile sink pattern etc.Routing Protocol can be divided into the data-centric routing agreement, based on bunch the Routing Protocol of Routing Protocol, location-based routing agreement and based on data flow model.Energy management comprises energy harvesting and access two aspects, and energy harvesting mainly refers to the energy conversion of physical environment is become the utilizable electric energy of node, as sun power, wind energy etc.; Stored energy is mainly the high-capacity battery technology.
As the perception part of wireless sensor network, sensor node comprises networking model and Routing Protocol except relating to wireless communication technology, outside the energy management technology, also comprises sensor technology.Sensor technology can not only be experienced measured information, and the information that detection can also be experienced, and with requirements such as the transmission of satisfying information, processing, controls, this is also the primary link of realizing the Internet of Things cognition technology.
At present, wireless sensor network has been obtained certain progress at Application in agriculture, has obtained certain achievement as the monitoring of the environmental information in greenhouse, farmland.But automatically exist deficiency aspect monitoring in the growth information of crop, the nitrogen level of crop has reacted the growth information of crop to a certain extent, and existing crop nitrogen horizontal measuring instrument needs too many manpower work, does not possess wireless sensor network superiority real-time, that automatically monitor on a large scale.
The JENNIC chip is a series of low power consumption and low cost wireless microcontrollers that Jennic company produces, and is applicable to the software application of IEEE802.15.4 and Zigbee.
The environmental information detecting sensor as aerial temperature and humidity, soil temperature-moisture sensor etc., all has analog or digital standard output interface usually.And measure the NDVI(normalized differential vegetation index of plant nitrogen content) sensor also designed the output of standard RS232 serial ports.The NDVI sensor adopts the nitrogen level of four wave band optics channel measurement crops based on the spectroscopy principle, and from serial ports output text, data.Crop growth environment and growth information are real-time in order to solve, problem that automatically monitor, and consider versatility and the extendability of node, and the present invention has designed a kind of wireless sensor network node with serial ports wireless transparent transmission function.
Summary of the invention
The utility model for the field-crop growth information of present existence can not real-time automatic monitoring problem, a kind of wireless sensor network node for monitoring crop growth and environmental information has been proposed.
A kind of wireless sensor network node for monitoring crop growth and environmental information, this wireless sensor network node is comprised of wireless micro controller 10, internal battery 11, solar panels 12, external power supply 13, red LED 14, green LED 15, environmental information detecting sensor 16, NDVI sensor 17, ZigBee-network module 18, antenna 19, the first button 20, the second button 21 and RS232 serial interface 22; Wherein,
Described wireless micro controller 10 is connected with RS232 serial interface 22 with internal battery 11, external power supply 13, red LED 14, green LED 15, environmental information detecting sensor 16, ZigBee-network module 18, antenna 19, the first button 20, the second button 21 respectively;
Described NDVI sensor 17 is connected with RS232 serial interface 22;
Described solar panels 12 are connected with internal battery 11.
Described wireless micro controller 10 adopts the JENNIC chip.
The beneficial effects of the utility model: this wireless sensor network node is installed simpler, cost is lower, power consumption is less, two kinds of power supply modes of internal battery and external power supply have been used simultaneously, work that can be stable, solar panels utilize sun power to charge to internal battery, meet the development trend of utilizing clean energy resource.The farmland of environmental information detecting sensor and the NDVI sensor wireless monitor of layouting, effectively the various situations of monitoring crop, add waterproofing design etc., makes this node to use in multiple wireless sensor network is used, improved Duty-circle, more easy to produce and use.
Description of drawings
The structural representation of the node that Fig. 1 provides for the utility model specific embodiment;
Wherein, 10-line micro controller, 11-internal battery, 12-solar panels, 13-external power supply, 14-red LED, 15-green LED, 16-environmental information detecting sensor, 17-NDVI sensor, 18-ZigBee mixed-media network modules mixed-media, 19-antenna, 20-the first button, 21-the second button, 22-RS232 serial interface.
Embodiment
Further illustrate the technical scheme of the utility model embodiment below in conjunction with the drawings and specific embodiments.
The structural representation of the node that Fig. 1 provides for the utility model specific embodiment.A kind of wireless sensor network node for monitoring crop growth and environmental information, it is characterized in that, this wireless sensor network node is comprised of wireless micro controller 10, internal battery 11, solar panels 12, external power supply 13, red LED 14, green LED 15, environmental information detecting sensor 16, NDVI sensor 17, ZigBee-network module 18, antenna 19, the first button 20, the second button 21 and RS232 serial interface 22; Wherein, described wireless micro controller 10 is connected with RS232 serial interface 22 with internal battery 11, external power supply 13, red LED 14, green LED 15, environmental information detecting sensor 16, ZigBee-network module 18, antenna 19, the first button 20, the second button 21 respectively; Described NDVI sensor 17 is connected with RS232 serial interface 22; Described solar panels 12 are connected with internal battery 11.Described wireless micro controller 10 adopts the JENNIC chip.As shown in Figure 1, wireless micro controller 10 adopts the JENNIC chip to be responsible for signals collecting, to read, to process and to communicate by letter; Internal battery 11 can guarantee that this wireless sensor network node works for a long time, solar panels 12 can utilize sun power to internal battery 11 chargings by day, when meeting rainy weather, when internal battery 11 electric weight were not enough, external power supply 13 can be powered for wireless sensor network node; The user can pass through the second button 21 choice for use internal batteries 11 or external power supply 13; Red LED 14 is used to refer to the duty of receiving sensor data, and green LED 15 is used to indicate the meshed network state; During sensor node startup work, red LED 14 and green LED 15 all are in the state that goes out, and when reading the NDVI sensing data or when gathering simulated data, red LED 14 is bright, does not go out when there is no data receiver; After sensor node successfully added ZigBee-network, green LED 15 was bright, when sensor node during to aggregation node wireless transmission data, green LED 15 flickers once, i.e. of short duration going out; Environmental information detecting sensor 16 is responsible for gathering the information such as soil temperature and humidity, aerial temperature and humidity or intensity of illumination; NDVI sensor 17 is responsible for gathering the spectral reflectance information of crop specific band, is used for calculating normalized differential vegetation index; RS232 serial interface 21 has the transparent transmission functional module with the JENNIC chip and is connected, and the data that are used for receiving the NDVI sensor are sent to host computer and process; NDVI sensor 17 is connected with RS232 serial interface 21, and the farmland of having satisfied NDVI sensor 17 wireless monitor of layouting is used, and its this generic features of serial ports transparent transmission has improved Duty-circle, has reduced exploitation; ZigBee-network module 18 has realized the transparent transmission function of serial ports to ZigBee with NDVI sensor 17; The antenna 19 of wireless receiving and dispatching data has improved precision and the accuracy that sends data;
The below elaborates the overall process that adopts the utility model work.Press the key of the first button 20 as the user after, system powers on and carries out initialization, at first, near wireless micro controller 10 automatic searchs radio network information channel, after searching ZigBee-network, send to ZigBee-network module 18 through the antenna 19 of wireless receiving and dispatching data and add network request, after the request of receiving is responded, obtain the network address, after successfully adding network, green LED 15 is bright, as long as node does not fall net, green LED 15 can keep bright state, and indication network is in good condition.Can be to serial ports output text message after NDVI sensor 17 powers on, introduce the relevant information of sensor, be sent to gateway node and then be sent to host computer to ZigBee-network module 18 through the transparent transmission module of RS232 serial interface 21 with wireless micro controller 10, the user can send instruction to this sensor node by host computer or gateway node, comprises start command of acquisition, stops acquisition instructions and the collection period instruction is set.Sensor node according to the user instruction operation response, comprising after antenna 19 receives user instruction: environmental information detecting sensor 16 begins or stops gathering the information such as soil temperature and humidity, aerial temperature and humidity or intensity of illumination, or changes collection period; RS232 serial interface 21 passes through NDVI sensor 17 with instruction, and NDVI sensor 17 begins or stop gathering the spectral reflectance information of crop specific band, or changes collection period.When environmental information detecting sensor 16 and NDVI sensor 17 beginning image data, red LED 14 is bright, finishes until gather, and red LED 14 is gone out.At this moment, wireless micro controller 10 begins to process the sensing data of collection, comprise data-switching, obtain data length and signal classification, and it is added the wireless transmission packet, to the gateway node address transmission data, simultaneously, green LED 15 flickers once by antenna 19, be of short duration going out, indication has packet to be wirelessly transmitted to ZigBee-network module 18.The user can be according to the choice for use solar panels 12 such as weather condition and internal battery 11 power supplies, or select external power supply 13 power supplies.Wherein the second button 21 is used for switching between two kinds of power supply modes.And when using external power supply 13 power supply, supply voltage needs in 3.7V～6V scope.
This wireless sensor network node has also adopted the design of waterproof, and environmental suitability is strong.
Claims (2)
1. wireless sensor network node that is used for monitoring crop growth and environmental information, it is characterized in that, this wireless sensor network node is comprised of wireless micro controller (10), internal battery (11), solar panels (12), external power supply (13), red LED (14), green LED (15), environmental information detecting sensor (16), NDVI sensor (17), ZigBee-network module (18), antenna (19), the first button (20), the second button (21) and RS232 serial interface (22); Wherein,
Described wireless micro controller (10) is connected with internal battery (11), external power supply (13), red LED (14), green LED (15), environmental information detecting sensor (16), ZigBee-network module (18), antenna (19), the first button (20), the second button (21) and RS232 serial interface (22) respectively;
Described NDVI sensor (17) is connected with RS232 serial interface (22);
Described solar panels (12) are connected with internal battery (11).
2. a kind of wireless sensor network node for monitoring crop growth and environmental information according to claim 1, is characterized in that, described wireless micro controller (10) adopts the JENNIC chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320338761 CN203274809U (en) | 2013-06-13 | 2013-06-13 | Wireless sensor network node for monitoring crop growth and environment information |
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| CN 201320338761 CN203274809U (en) | 2013-06-13 | 2013-06-13 | Wireless sensor network node for monitoring crop growth and environment information |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104394603A (en) * | 2014-11-13 | 2015-03-04 | 无锡悟莘科技有限公司 | Farmland information automatic detection system based on wireless sensor network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104394603A (en) * | 2014-11-13 | 2015-03-04 | 无锡悟莘科技有限公司 | Farmland information automatic detection system based on wireless sensor network |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140613 |
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| EXPY | Termination of patent right or utility model |