CN203812273U - Portable agriculture information service terminal - Google Patents
Portable agriculture information service terminal Download PDFInfo
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- CN203812273U CN203812273U CN201420230442.0U CN201420230442U CN203812273U CN 203812273 U CN203812273 U CN 203812273U CN 201420230442 U CN201420230442 U CN 201420230442U CN 203812273 U CN203812273 U CN 203812273U
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Abstract
The utility model provides a portable agriculture information service terminal which comprises: a WSN (Wireless Sensor Network) unit which is connected with a main controller and is used for receiving environment information acquired by wireless sensor nodes in a farmland; a touch and display unit which is connected with the main controller, and records and displays farming and agricultural condition information and crop growth state information; an image acquisition unit which is connected with the main controller and acquires crop images; an AGPS (Assisted Global Positioning) unit which is connected with the main controller, positions indoors or outdoors, and acquires geographical position information of crops; an wireless communication unit which is connected with the main controller, comprise a WIFI and 3G communication subunit, and transmits data to a server in a wireless mode; and a WSN positioning unit which is connected with the main controller and a WSN receiving unit, comprises a signal intensity detection circuit, a memory and an arithmetic unit, and positions a terminal or assigned livestock in an agriculture environment with a wireless sensor network.
Description
Technical field
This practical Agricultural Information field, is specifically related to a kind of portable agriculture information service terminal.
Background technology
In agricultural production process, need to carry out real-time monitored to the environmental parameter in agriculture production environment, farming agriculture feelings information is recorded and gathered, and these information of record contribute to the accurate management of agricultural production, for reviewing of agricultural product provides truly, raw information; Researchist analyzes the mass data gathering, and can provide Data support for agricultural production research.
Conventional Agricultural Information acquisition terminal roughly mainly comprises at present: the portable terminal that gathers stationary nodes and the collection farming agriculture feelings information of environmental parameter in farm environment.The former can not move, and can only gather the environmental information in fixed area, does not generally record agriculture feelings farming information.The latter mainly carries out the typing of word by keyboard etc. at present, gather farming agriculture feelings information and crop growthing state information, the data type gathering is only limited to literal type, the message form gathering is single, do not carry out node locating or adopt GPS module to carry out the location of node, GPS localization method is for environmental positioning poor effect such as indoor, booths.Can not check and record environmental information in region, farmland,, in the time that user carries out at the scene the observation of crop growth situation and records, but cannot carry out real time inspection to the environmental data of sensor node collection.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of portable agriculture information service terminal, terminal is in conjunction with being laid in farmland wireless sensor network, can either carry out the word collection of farming agriculture feelings information, can realize again the image acquisition of disease and pest situation, simultaneously this novel by with farmland in WSN (the Wireless Sensor Network that lays, wireless sensor network) node communicates, can obtain farm environment data, this novelly has AGPS location and a WSN positioning function in addition, realize the location to terminal location and livestock position in agricultural environment.
For achieving the above object, the utility model is achieved by the following technical programs:
A kind of portable agriculture information service terminal, comprising:
WSN receiving element, is connected with master controller, receives the environmental information that in farmland, wireless sensor node gathers;
Touch and display unit, be connected with master controller, record and demonstration farming agriculture feelings information and crop growthing state information;
Image acquisition units, is connected with master controller, carries out crops image acquisition;
AGPS positioning unit, is connected with master controller, carries out indoor or outdoors location, obtains the geographical location information of crops;
Wireless communication unit, is connected with master controller, comprises WIFI and 3G communicator unit, and data are arrived to server by wireless way for transmitting;
WSN positioning unit, is connected with WSN receiving element with master controller, is made up of signal strength detection circuit, storer and arithmetical unit, in the agricultural environment that is laid with wireless sensor network, terminal itself is positioned,
The wireless sensor node of setting at least 3 known position information is anchor node, and described 3 wireless sensor nodes are and disperse to distribute in the agricultural environment that is laid with wireless sensor network,
Signal strength detection circuit, the signal intensity of each anchor node that statistics WSN receiving element receives;
Storer, signal intensity and the positional information of storing each anchor node;
Arithmetical unit, the signal intensity of each anchor node and positional information in read memory, the residing position of computing terminal;
Described WSN positioning unit also positions fowl poultry in the agricultural environment that is laid with wireless sensor network, fowl poultry to be positioned, wireless sensor node is installed with it, describedly be arranged on the wireless sensor node that fowl to be positioned raises with it and be called blind node, the wireless sensor node of setting at least 3 known position information is anchor node, described 3 wireless sensor nodes are and disperse to distribute in the agricultural environment that is laid with wireless sensor network
Storer, the positional information of each anchor node and the signal intensity of each anchor node that blind node receives that storage WSN receiving element receives;
Arithmetical unit, the signal intensity of each anchor node that the positional information of each anchor node in read memory and blind node receive, calculates the residing position of blind node;
Wherein, described master controller, is connected with WSN receiving element, touch and display unit, image acquisition units, AGPS positioning unit, wireless communication unit be connected with WSN positioning unit, controls the course of work of described multiple unit.
Wherein, described terminal can also passing ratio arithmetical unit calculate described anchor node, blind node and terminal touch and display unit on relative position.
Wherein, this terminal also comprises interface unit, is connected, for carrying out data transmission with external unit with master controller.
Wherein, described interface unit comprises PS/2 mouth, jtag interface, RJ-45 interface, USB interface and serial ports.
Wherein, this terminal also comprises secure digital input and output SDIO, for expanding external memory space.
Wherein, it is characterized in that, described master controller comprises ARM9 processor, readable and writable memory, ROM (read-only memory) and clock circuit.
The utility model at least has following beneficial effect:
1, WSN unit, touch and display unit and the image acquisition units in terminal described in the utility model, the farm environment information of wireless sensor network node collection but also can facilitate the upgrowth situation of user's real time record field-crop in not only can Real-time Obtaining farmland, therefore by this terminal, can realize the unified of crop growth environment information and farming agriculture feelings information, growth conditions information and observe and record.
2, terminal described in the utility model comprises AGPS positioning unit, can be used for carrying out indoor or outdoors location, thereby meet the location requirement of land for growing field crops, warmhouse booth, and AGPS positioning unit is in the time carrying out indoor positioning, locating speed is fast, can save positioning time.
Terminal described in the utility model comprises WSN positioning unit, can be used for carrying out WSN location, realizes the location to terminal location and livestock position in agricultural environment.In addition, this terminal also by touch and display unit to described terminal and appointment livestock and poultry position show, thereby facilitate user to check concrete positioning result, the livestock and poultry that find appointment for user provide convenience.
3, terminal described in the utility model comprises wireless communication unit, thereby the wireless transmission of supported data, it is the transmission mode of growth data simultaneously, described terminal also comprises interface unit, for the wire transmission of data, wherein RJ-45 interface is used for interconnection network, support terminal wiring logging-on function, and USB mouth and serial ports are for the wire transmission of data.User can, according to the communication environment of collection site, select the mode of data upload.Poor when on-site wireless communication condition, user also can temporarily be kept at the data of collection the external memory space of terminal, in the time that wireless signal is better, then carries out uploading or carrying out the wired of data by the RJ-45 network interface of terminal configuration and upload in batches.
Certainly, implement product of the present utility model and not necessarily need to reach above-described all advantages simultaneously.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is according to the structural representation of the portable agriculture information service terminal of an embodiment of the utility model.
Embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is carried out to clear, complete description, obviously, described embodiment is the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
An embodiment of the present utility model has proposed a kind of portable agriculture information service terminal, and referring to Fig. 1, this terminal comprises:
WSN receiving element 101, is connected with master controller, receives the environmental information that in farmland, wireless sensor node gathers;
Touch and display unit 102, be connected with master controller 107, record and demonstration farming agriculture feelings information and crop growthing state information;
Image acquisition units 103, is connected with master controller 107, carries out crops image acquisition;
AGPS positioning unit 104, is connected with master controller 107, carries out indoor or outdoors location, obtains the geographical location information of crops;
Wireless communication unit 105, is connected with master controller 107, comprises WIFI and 3G communicator unit, and data are arrived to server by wireless way for transmitting;
WSN positioning unit 106, be connected with WSN receiving element 101 with master controller 107, formed by signal strength detection circuit, storer and arithmetical unit, in the agricultural environment that is laid with wireless sensor network, terminal itself is positioned, the wireless sensor node of setting at least 3 known position information is anchor node, described 3 wireless sensor nodes are and disperse to distribute in the agricultural environment that is laid with wireless sensor network
Signal strength detection circuit, the signal intensity of each anchor node that statistics WSN receiving element receives;
Storer, signal intensity and the positional information of storing each anchor node;
Arithmetical unit, the signal intensity of each anchor node and positional information in read memory, the residing position of computing terminal;
Described WSN positioning unit 106 also positions fowl poultry in the agricultural environment that is laid with wireless sensor network, fowl poultry to be positioned, wireless sensor node is installed with it, describedly be arranged on the wireless sensor node that fowl to be positioned raises with it and be called blind node, the wireless sensor node of setting at least 3 known position information is anchor node, described 3 wireless sensor nodes are and disperse to distribute in the agricultural environment that is laid with wireless sensor network
Storer, the positional information of each anchor node and the signal intensity of each anchor node that blind node receives that storage WSN receiving element receives;
Arithmetical unit, the signal intensity of each anchor node that the positional information of each anchor node in read memory and blind node receive, calculates the residing position of blind node;
Master controller, is connected with display unit with described WSN receiving element, touch, image acquisition units, AGPS positioning unit, wireless communication unit be connected with WSN positioning unit, controls the course of work of described multiple unit.
Wherein, described master controller 107, be connected with WSN receiving element 101, touch and display unit 102, image acquisition units 103, AGPS positioning unit 104, wireless communication unit 105 be connected with WSN positioning unit 106, controls the course of work of described multiple unit.This master controller 107 can be realized by a storer and a clock circuit.
Wherein, WSN receiving element 101 receives the environmental information that in farmland, wireless sensor node gathers, and WSN receiving element is supported the transmitting-receiving of 2.4GHz wireless signal.Walk about in farmland when the hand-held described terminal of user, terminal is as the aggregation node of a movement, and the acquisition node that can communicate with in scope communicates.Terminal WSN receiving element sends instruction to the acquisition node in communication range, the real time environment data that request receiving node gathers.Node receives after instruction, sends its node ID information to terminal, and the environmental data information gathering.Terminal receives after these information, stores and shows.Therefore, user being laid with the farmland of a large amount of wireless senser acquisition nodes, warmhouse booth is walked about, the real-time information of crop growth environment that can Real-time Obtaining periphery.
In the present embodiment, terminal adopts the acp chip of CC2530F256 chip as WSN receiving element 101, configures external high-gain SMA antenna, and spacious environment maximum transmission distance can reach 350 meters.
Wherein, touch and display unit 102, be connected with master controller 107, record and demonstration farming agriculture feelings information and crop growthing state information, this unit can adopt the liquid crystal touch screen of 7 cun in realization, for input information and demonstration.
Wherein, image acquisition units 103, is connected with master controller 107, carries out crops image acquisition, thereby has solved the data type in the past gathering and be only limited to literal type, the single problem of message form of collection.
By touch and display unit 102 and the image acquisition units 103 of this terminal, the Crop Information of checking is carried out to written record and recording image, the content of record comprises the growth situation of crop, farmland moisture condition, and farming operates as sowing, fertilising, deinsectization, results etc.Image acquisition units can also be taken pictures to agricultural land image information in addition, records disease and pest image information.
Terminal is getting after the information of disease and pest image information, agriculture feelings farming information, farm environment, selects information temporarily store in this locality or directly arrive server by wireless network transmissions according to field network situation.
Wherein, AGPS positioning unit 104, is connected with master controller 107, carries out indoor or outdoors location, obtains the geographical location information of crops.Traditional GPS location is only applicable at outdoor positioning, and AGPS location is not only suitable for outdoor positioning, also be suitable for indoor positioning, thereby AGPS positioning unit 104 can meet the location requirement of land for growing field crops, warmhouse booth, and AGPS is positioned at while carrying out indoor positioning, locating speed is fast, has saved positioning time.
Wherein, AGPS, in conjunction with GSM/GPRS and conventional satellite location, can use in GSM/GPRS, WCDMA and CDMA2000 network.Utilize base station generation to send secondary satellite information, the time delay of obtaining satellite-signal to reduce GPS chip, the indoor base station signal of also borrowing being hidden makes up, and alleviates the dependency degree of GPS chip to satellite.This terminal AGPS positioning unit, can carry out indoor positioning, and locating speed is fast, can meet the location requirement of land for growing field crops, warmhouse booth simultaneously.Can save time for recording of information in location fast simultaneously.
Wherein, wireless communication unit 105, is connected with master controller 107, comprises WIFI and 3G communicator unit, and data are arrived to server by wireless way for transmitting.
Wherein, WSN positioning unit 106, be connected with WSN receiving element 101 with master controller 107, formed by signal strength detection circuit, storer and arithmetical unit, in the agricultural environment that is laid with wireless sensor network, terminal itself is positioned, the wireless sensor node of setting at least 3 known position information is anchor node, and described 3 wireless sensor nodes are and disperse to distribute in the agricultural environment that is laid with wireless sensor network
Signal strength detection circuit, the signal intensity of each anchor node that statistics WSN receiving element receives;
Storer, signal intensity and the positional information of storing each anchor node;
Arithmetical unit, the signal intensity of each anchor node and positional information in read memory, the residing position of computing terminal;
Described WSN positioning unit also positions fowl poultry in the agricultural environment that is laid with wireless sensor network, fowl poultry to be positioned, wireless sensor node is installed with it, describedly be arranged on the wireless sensor node that fowl to be positioned raises with it and be called blind node, the wireless sensor node of setting at least 3 known position information is anchor node, described 3 wireless sensor nodes are and disperse to distribute in the agricultural environment that is laid with wireless sensor network
Signal strength detection circuit, each anchor node that statistics WSN receiving element receives and the signal intensity of blind node;
Storer, signal intensity, the positional information of each anchor node and the signal intensity of blind node of storing each anchor node;
Arithmetical unit, the signal intensity of the signal intensity of each anchor node in read memory, the positional information of each anchor node and blind node, calculates the residing position of blind node.
Particularly, in breeding environment, need to position some particular individuals, as sick and wounded livestock etc.By WSN positioning unit of the present utility model, can realize the location of terminal and specify the location of fowl poultry.
1) location to terminal:
Be laid with in the agricultural environment of wireless sensor network, terminal is made as location scene near residing position;
First the wireless sensor node of setting at least 3 known position information in the scene of needs location is anchor node, and anchor node disperses to be laid in the scene of location.
The WSN receiving element of described terminal receives the signal that anchor node sends, the intensity of the different anchor node signals that signal strength detection circuit statistics receives; The signal intensity of each anchor node of memory stores and positional information; The signal intensity of each anchor node in arithmetical unit read memory and positional information, according to the distance of these information computing terminals and each anchor node, and then the residing position of computing terminal in the scene of location.
2) to specifying the location of fowl poultry:
Be laid with in the agricultural environment of wireless sensor network, the large-scale circle canopy of establishing livestock activity is location scene, and the wireless sensor node of setting at least 3 known position information in the scene of location is anchor node, and anchor node disperses to be laid in the scene of location.Livestock to be positioned, wireless sensor node is installed with it, described in be arranged on the wireless sensor node that fowl raises with it and be called blind node;
The WSN receiving element of described terminal receives the signal that described blind node and anchor node send; The positional information of each anchor node of memory stores and blind node receive the signal intensity of the signal intensity of anchor node; The positional information of each anchor node in arithmetical unit read memory and blind node receive the signal intensity of anchor node, calculate the distance of blind node and each anchor node according to these information, and then calculate blind node residing position in the scene of location.
In addition, described terminal can also passing ratio arithmetical unit calculate described anchor node, blind node and terminal touch and display unit on relative position.
By anchor node, blind node and terminal in location the position in scene correspondingly passing ratio arithmetical unit retrain in proportion its position corresponding relation be presented on terminal display screen, facilitate terminal self poisoning and in scene, find fast unknown node.
This terminal can receive the information of blind node in real time, thereby can carry out the real-time location of blind node.User's handheld terminal can conveniently find blind node, the livestock that can carry wireless sensor node to some by this function carries out the location of fast accurate, in large-scale farming process, can in herd, find rapidly ill or some specific animal by this function of terminal.
Wherein, described master controller 107, be connected 102 with WSN receiving element 101, touch and display unit, image acquisition units 103, AGPS positioning unit 104, wireless communication unit 105 be connected with WSN positioning unit 106, controls the course of work of described multiple unit.
Wherein, this terminal also comprises interface unit 108, is connected, for carrying out data transmission with external unit with master controller 107, described interface unit comprises PS/2 mouth, jtag interface, RJ-45 interface, USB interface and serial ports, and jtag interface is downloaded debugging for circuit board; Connect mouse-keyboard by PS/2 mouth, user-friendly; RJ-45 interface is for interconnection network, support terminal wiring logging-on function; USB mouth and serial ports are for the wire transmission of data.
Wherein, this terminal also comprises secure digital input and output SDIO (Secure Digital Input and Output Card) 109, is connected, for expanding external memory space with master controller 107.The selectivity that user carries out exterior storage TF card according to user demand is added.
Wherein, described master controller 107 comprises ARM9 processor, readable and writable memory, ROM (read-only memory) and clock circuit, master controller is taking Samsung ARM9 processor as core in the present embodiment, SDRAM storer and the clock circuit of the ROM (read-only memory) of peripheral expansion 128M byte and 128M byte.
WSN unit, touch and display unit and image acquisition units in terminal described in the present embodiment, the farm environment information of wireless sensor network node collection but also can facilitate the upgrowth situation of user's real time record field-crop in not only can Real-time Obtaining farmland, therefore by this terminal, can realize the unified of crop growth environment information and farming agriculture feelings information, growth conditions information and observe and record.
Described in the present embodiment, terminal comprises AGPS positioning unit, can be used for carrying out indoor or outdoors location, thereby meet the location requirement of land for growing field crops, warmhouse booth, and AGPS positioning unit is in the time carrying out indoor positioning, and locating speed is fast, can save positioning time.
Described in the present embodiment, terminal comprises WSN positioning unit, can be used for carrying out WSN location, realizes the location to terminal location and livestock position in the agricultural environment that is laid with WSN network.In addition, this terminal also by touch and display unit to described terminal and appointment livestock and poultry position show, thereby facilitate user to check concrete positioning result, the livestock and poultry that find appointment for user provide convenience.
Described in the present embodiment, terminal comprises wireless communication unit, thereby the wireless transmission of supported data, it is the transmission mode of growth data simultaneously, described terminal also comprises interface unit, for the wire transmission of data, wherein RJ-45 interface is used for interconnection network, support terminal wiring logging-on function, and USB mouth and serial ports are for the wire transmission of data.User can, according to the communication environment of collection site, select the mode of data upload.When on-site wireless communication condition poor, user also can temporarily be kept at the data of collection in the external memory space of terminal security digital IO SDIO expansion, in the time that wireless signal is better, then carry out uploading or carrying out the wired of data by the RJ-45 network interface of terminal configuration and upload in batches.
This user object of implementing described terminal mainly comprises the agricultural product producer of basic unit, agricultural product production supervision department and agricultural product production run researchist etc., this terminal can meet all types of user colony use scenes demand, provides the field information acquisition management service of comprehensive personalization in conjunction with shifting agriculture information service application and field information acquisition service platform for peasant household and agriculture technical staff.
Above embodiment only, for the technical solution of the utility model is described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technical scheme.
Claims (6)
1. a portable agriculture information service terminal, is characterized in that, comprising:
WSN receiving element, is connected with master controller, receives the environmental information that in farmland, wireless sensor node gathers;
Touch and display unit, be connected with master controller, record and demonstration farming agriculture feelings information and crop growthing state information;
Image acquisition units, is connected with master controller, carries out crops image acquisition;
AGPS positioning unit, is connected with master controller, carries out indoor or outdoors location, obtains the geographical location information of crops;
Wireless communication unit, is connected with master controller, comprises WIFI and 3G communicator unit, and data are arrived to server by wireless way for transmitting;
WSN positioning unit, is connected with WSN receiving element with master controller, is made up of signal strength detection circuit, storer and arithmetical unit, in the agricultural environment that is laid with wireless sensor network, terminal itself is positioned,
The wireless sensor node of setting at least 3 known position information is anchor node, and described 3 wireless sensor nodes are and disperse to distribute in the agricultural environment that is laid with wireless sensor network,
Signal strength detection circuit, the signal intensity of each anchor node that statistics WSN receiving element receives;
Storer, signal intensity and the positional information of storing each anchor node;
Arithmetical unit, the signal intensity of each anchor node and positional information in read memory, the residing position of computing terminal;
Described WSN positioning unit also positions fowl poultry in the agricultural environment that is laid with wireless sensor network, fowl poultry to be positioned, wireless sensor node is installed with it, describedly be arranged on the wireless sensor node that fowl to be positioned raises with it and be called blind node, the wireless sensor node of setting at least 3 known position information is anchor node, described 3 wireless sensor nodes are and disperse to distribute in the agricultural environment that is laid with wireless sensor network
Storer, the positional information of each anchor node and the signal intensity of each anchor node that blind node receives that storage WSN receiving element receives;
Arithmetical unit, the signal intensity of each anchor node that the positional information of each anchor node in read memory and blind node receive, calculates the residing position of blind node;
Wherein, described master controller, is connected with WSN receiving element, touch and display unit, image acquisition units, AGPS positioning unit, wireless communication unit be connected with WSN positioning unit, controls the course of work of described multiple unit.
2. terminal according to claim 1, is characterized in that, described terminal can also passing ratio arithmetical unit calculate described anchor node, blind node and terminal touch and display unit on relative position.
3. terminal according to claim 1, is characterized in that, this terminal also comprises interface unit, is connected, for carrying out data transmission with external unit with master controller.
4. terminal according to claim 3, is characterized in that, described interface unit comprises PS/2 mouth, jtag interface, RJ-45 interface, USB interface and serial ports.
5. terminal according to claim 1, is characterized in that, this terminal also comprises secure digital input and output SDIO, for expanding external memory space.
6. terminal according to claim 1, is characterized in that, described master controller comprises ARM9 processor, readable and writable memory, ROM (read-only memory) and clock circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420230442.0U CN203812273U (en) | 2014-05-06 | 2014-05-06 | Portable agriculture information service terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420230442.0U CN203812273U (en) | 2014-05-06 | 2014-05-06 | Portable agriculture information service terminal |
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| CN203812273U true CN203812273U (en) | 2014-09-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105766566A (en) * | 2016-03-22 | 2016-07-20 | 江苏科技大学 | Nursery garden micro-irrigation method and system based on wireless positioning technology |
| CN109308562A (en) * | 2017-07-28 | 2019-02-05 | 井关农机株式会社 | Farmland management system |
| CN110320494A (en) * | 2019-07-19 | 2019-10-11 | 仲恺农业工程学院 | UWB communication technology-based cattle indoor positioning system and heuristic jump filtering positioning method |
-
2014
- 2014-05-06 CN CN201420230442.0U patent/CN203812273U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105766566A (en) * | 2016-03-22 | 2016-07-20 | 江苏科技大学 | Nursery garden micro-irrigation method and system based on wireless positioning technology |
| CN109308562A (en) * | 2017-07-28 | 2019-02-05 | 井关农机株式会社 | Farmland management system |
| CN109308562B (en) * | 2017-07-28 | 2024-01-05 | 井关农机株式会社 | Farmland management system |
| CN110320494A (en) * | 2019-07-19 | 2019-10-11 | 仲恺农业工程学院 | UWB communication technology-based cattle indoor positioning system and heuristic jump filtering positioning method |
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