CN108718999B - Water collection and moisture preservation system for grassland recovery - Google Patents
Water collection and moisture preservation system for grassland recovery Download PDFInfo
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- CN108718999B CN108718999B CN201810438168.9A CN201810438168A CN108718999B CN 108718999 B CN108718999 B CN 108718999B CN 201810438168 A CN201810438168 A CN 201810438168A CN 108718999 B CN108718999 B CN 108718999B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
- A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
Abstract
The invention belongs to the technical field of grassland recovery, and discloses a water collecting and moisturizing system for grassland recovery. The system is provided with a satellite monitoring module, an artificial follow-up module, a natural recovery module, a water collecting module, a rainwater allocation module, an alarm module, an even distribution module, a water pump and delivery module and an irrigation module. The method has the advantages that the moisture on the grassland is monitored, intelligentized and reminded by alarm in different modes, and the treatment on the arid area on the grassland is facilitated; by monitoring rainwater, water resource distribution in different areas is reasonably arranged, so that moisturizing is better realized, and grassland recovery is facilitated; the water is collected and moisturized by means of the force of the nature, and the natural recovery is realized; the invention has clear and reasonable design thought, evenly distributes and rationalizes the water on the grassland, ensures that the water is beneficial to reaching a reasonable level and is suitable for popularization.
Description
Technical Field
The invention belongs to the technical field of grassland restoration, and particularly relates to a water collecting and moisturizing system for grassland restoration.
Background
At present, people seriously damage the grassland, the grassland restoration has important significance, the environment can be improved, the land life can be prolonged, water collection and moisture preservation are very important in the grassland restoration, the moisture is favorable for the growth of plants, the soil improvement is favorable, the reasonable distribution of water resources on the grassland is favorable for the moisture preservation of the grassland, and the grassland restoration is favorable. But the prior art can not make the effective utilization rate of water reach normal reasonable level, so that the water collection and moisture preservation in the grassland recovery can not be popularized uniformly and comprehensively, and the improvement of the plant growth soil is not facilitated.
In summary, the problems of the prior art are as follows: the prior art can not achieve the purpose that the effective utilization rate of water reaches the normal reasonable level, so that water collection and moisture preservation in the grassland recovery can not be popularized uniformly and comprehensively, and the improvement of the plant growth soil is not facilitated.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a water collecting and moisturizing system for recovering grasslands.
The invention is realized in such a way that the water collecting and moisturizing system for grassland recovery is provided with a satellite monitoring module, a manual follow-up module, a natural recovery module, a water collecting module, a rainwater allocation module, an alarm module, an even distribution module, a water pump and delivery module and an irrigation module.
A satellite monitoring module: the satellite monitoring module is connected with the alarm module and the uniform distribution module, and the grassland condition is fed back to the alarm module and the uniform distribution module through satellite monitoring;
the process of the satellite monitoring module for constructing the unified operation and maintenance data model is as follows:
first, a reference is selectedAlarm information parameter vector, and establishing reference sequence X0，
X0＝{X0(t)|t＝1,2,…,n}＝(X0(1),X0(2),…,X0(n))
Wherein t represents the time, X0Representing alarm information, wherein n represents the characteristic dimension of the parameter vector of the alarm information;
secondly, assuming that m pieces of comparative fault alarm information data exist, a comparative sequence Xi is established
Xi＝{Xi(t)|t＝1,2,…,n}＝(Xi(1),Xi(2),…,Xi(n)),i＝1,2,…,m
Then, a comparison sequence X is establishediTo reference number series X0Correlation coefficient ζ at time ti( t)
Wherein, w1Adjusting and determining the corresponding weight of each parameter according to the network attribute of the user, wherein rho is a resolution coefficient rho ∈ [0, + ∞ ], the larger rho is, and the smaller rho is, the smaller is the resolution;
finally, a comparison sequence X is calculatediTo reference number series X0Degree of association of
A manual circulation module: the manual follow-up module is connected with the alarm module, the manual follow-up module is connected with the uniform distribution module, and the grassland condition is fed back to the alarm module and the uniform distribution module through manual follow-up;
a natural recovery module: the natural recovery module is connected with the uniform distribution module and is used for performing grassland moisturizing recovery through the force of the nature;
the water collecting module: the water collecting module is connected with the uniform distribution module and transmits water collecting information such as the amount of collected water, the water collecting place and the like to the uniform distribution module;
a rainwater blending module: the rainwater allocation module is connected with the uniform distribution module and transmits rainwater information of different places to the uniform distribution module;
uniformly dividing into modules: the uniform distribution module is connected with the satellite monitoring module, the manual follow-up module, the natural recovery module, the water collection module and the rainwater allocation module, collects and transmits feedback information, arranges the information and transmits new information to the water pump and water delivery module;
water delivery module of water pump: the water pump water delivery module is connected with the uniform distribution module, and the water pump is controlled to work after receiving information to deliver water in different places;
and the irrigation module is connected with the water pump delivery module, and can automatically control the irrigation device to irrigate and moisturize grasslands after receiving water delivered by the water pump.
Furthermore, the alarm module is connected with the satellite monitoring module and the manual follow-up module, and can give an alarm when the grassland condition does not reach the standard.
Further, the uniform distribution module includes: the system comprises a distribution module chip, an information processing system, a fault identification alarm system, a communication system, a distribution module shell, a touch screen, a button, a connecting groove, an extended function groove and a loudspeaker;
the distribution module chip is arranged inside the distribution module shell;
the information processing system is arranged in the distribution module chip and used for collecting information fed back by the satellite monitoring module, the manual follow-up module, the natural recovery module, the water collecting module and the rainwater allocation module;
the information processing system user k receives a signal ykThen, firstly, the
Performing channel estimation to obtain a size Nr×(Nt×Nv) The sub-channel matrix between the jth transmitting antenna and the receiving antenna at the base station end is assumed to be
Subchannel matrix
Is of size Nr×NvThen three-dimensional channel matrix is formed
The rewrite is:
adopting a DFT codebook to feed back in the vertical direction of the three-dimensional channel matrix, wherein the feedback form is as follows:
for each subchannel matrix according to the DFT codebook
Selecting a certain column v in DFT codebookjFor the best codeword, when codeword selection is completed for all subchannel matrices, the size is obtained as (N)t×Nv)×NtIs precoding matrix Wv：
For each user k, a three-dimensional channel matrix is formed between the user k and the base station
After precoding in the vertical direction, the channel matrix becomes an equivalent two-dimensional channel matrix HequalWherein, in the step (A),
h is to beequalViewed as an equivalent horizontal channel, equivalent horizontal channel HequalIs of size Nr×Nt；
The fault identification alarm system is arranged in a chip of the distribution module.
The communication system is arranged in the extended function slot.
The touch screen is embedded in the middle of the surface of the distribution module shell.
The button is mounted on the right side of the electronic screen position on the surface of the dispensing module housing.
The connecting groove is embedded at the left of the surface of the distribution module shell.
The extended function slot is embedded above a surface of the distribution module housing.
The speaker is mounted to the right of the dispensing module housing surface.
Further, the water pump delivery module comprises a water pump delivery P L C control system, a fault identification alarm system, a communication system, a water pump delivery module control cabinet shell, a connecting groove, a fault identification alarm lamp and a loudspeaker.
And the water pump delivery P L C control system is arranged inside the shell of the water pump delivery module control cabinet.
The fault identification alarm system is arranged in a P L C module of a water pump and delivery P L C control system.
The communication system is arranged in a P L C module of the water pump delivery P L C control system.
The connecting groove is embedded on the left of the surface of the shell of the water pump water delivery module control cabinet.
And the fault identification alarm lamp is arranged above the surface of the shell of the water pump water delivery module control cabinet.
The loudspeaker is embedded on the right side of the surface of the shell of the water pump and water delivery module control cabinet.
The invention has the advantages and positive effects that: the method has the advantages that the moisture on the grassland is monitored, intelligentized and reminded by alarm in different modes, and the treatment on the arid area on the grassland is facilitated; by monitoring rainwater, water resource distribution in different areas is reasonably arranged, so that moisturizing is better realized, and grassland recovery is facilitated; the water is collected and moisturized by means of the force of the nature, and the natural recovery is realized; the invention has clear and reasonable design thought, evenly distributes and rationalizes the water on the grassland, ensures that the water is beneficial to reaching a reasonable level and is suitable for popularization. In addition, each system of the water collecting and moisturizing system for recovering the grassland adopts a dual-system guarantee crash-proof technology, so that the system crash caused by overlarge hardware and information of equipment can be prevented.
Drawings
FIG. 1 is a schematic structural view of a water collecting and moisturizing system for grassland restoration provided by an embodiment of the present invention;
in the figure: 1. a satellite monitoring module; 2. a manual follow-up module; 3. a natural recovery module; 4. a water collection module; 5. a rainwater blending module; 6. an alarm module; 7. a uniform distribution module; 8. a water pump delivery module; 9. An irrigation module.
FIG. 2 is a schematic structural diagram of an even distribution module of the water collecting and moisturizing system for grassland restoration provided by the embodiment of the invention;
in the figure: 10. distributing the module chip; 11. an information processing system; 12. a fault identification alarm system; 13. A communication system; 14. a dispensing module housing; 15. a touch screen; 16. a button; 17. connecting grooves; 18. an extended function slot; 19. a loudspeaker.
Fig. 3 is a schematic structural diagram of a water pump delivery module of the water collecting and moisturizing system for restoring grasslands, provided by the embodiment of the invention;
in the figure, a control system of water delivery P L C of a water pump is 20, a fault identification alarm system is 21, a communication system is 22, a control cabinet shell of a water delivery module of the water pump is 23, a connecting groove is 24, a fault identification alarm lamp is 25, and a loudspeaker is 26.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
The structure of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the water collecting and moisturizing system for grassland restoration provided by the embodiment of the present invention includes a satellite monitoring module 1, a manual follow-up module 2, a natural restoration module 3, a water collecting module 4, a rainwater blending module 5, an alarm module 6, an even distribution module 7, a water pump and delivery module 8, and an irrigation module 9.
Satellite monitoring module 1: the satellite monitoring module 1 is connected with the alarm module 6, the satellite monitoring module 1 is connected with the uniform distribution module 7, and the grassland condition is fed back to the alarm module and the uniform distribution module through satellite monitoring;
the manual circulation module 2: the manual follow-up module 2 is connected with the alarm module 6, the manual follow-up module 2 is connected with the uniform distribution module 7, and the grassland condition is fed back to the alarm module and the uniform distribution module through manual follow-up;
the natural restoration module 3: the natural recovery module 3 is connected with the uniform distribution module 7, and the grassland moisturizing recovery is carried out through the force of the nature;
the water collecting module 4: the water collecting module 4 is connected with the uniform distribution module 7, and water collecting information such as the amount of collected water, the water collecting place and the like is transmitted to the uniform distribution module;
rainwater blending module 5: the rainwater allocation module 5 is connected with the uniform distribution module 7, and rainwater information of different places is transmitted to the uniform distribution module.
Evenly divide module 7: the uniform distribution module 7 is connected with the satellite monitoring module 1, the manual follow-up module 2, the natural recovery module 3, the water collection module 4 and the rainwater allocation module 5, collects information fed back by transmission, arranges the information and transmits new information to the water pump and delivery module 8;
water pump delivery module 8: the water pump water delivery module 8 is connected with the uniform distribution module 7, and the water pump is controlled to work after receiving information, so that water delivery in different places is carried out.
And the irrigation module 9 is characterized in that the irrigation module 9 is connected with the water pump delivery module 8, and the irrigation device is automatically controlled to irrigate and moisturize grasslands after receiving water delivered by the water pump.
Further, the alarm module 6 is connected with the satellite monitoring module 1 and the manual follow-up module 2, and can give an alarm when the situation of the grassland does not reach the standard.
The process of the satellite monitoring module for constructing the unified operation and maintenance data model is as follows:
firstly, selecting ginsengEstablishing a reference sequence X by examining the parameter vector of the alarm information0，
X0＝{X0(t)|t＝1,2,…,n}＝(X0(1),X0(2),…,X0(n))
Wherein t represents the time, X0Representing alarm information, wherein n represents the characteristic dimension of the parameter vector of the alarm information;
secondly, assuming that m pieces of comparative fault alarm information data exist, a comparative sequence Xi is established
Xi＝{Xi(t)|t＝1,2,…,n}＝(Xi(1),Xi(2),…,Xi(n)),i＝1,2,…,m
Then, a comparison sequence X is establishediTo reference number series X0Correlation coefficient ζ at time ti(t)
Wherein, w1Adjusting and determining the corresponding weight of each parameter according to the network attribute of the user, wherein rho is a resolution coefficient rho ∈ [0, + ∞ ], the larger rho is, and the smaller rho is, the smaller is the resolution;
finally, a comparison sequence X is calculatediTo reference number series X0Degree of association of
The information processing system user k receives a signal ykThen, firstly, the
Performing channel estimation to obtain a size Nr×(Nt×Nv) The sub-channel matrix between the jth transmitting antenna and the receiving antenna at the base station end is assumed to be
Subchannel matrix
Is of size Nr×NvThen three-dimensional channel matrix is formed
The rewrite is:
adopting a DFT codebook to feed back in the vertical direction of the three-dimensional channel matrix, wherein the feedback form is as follows:
for each subchannel matrix according to the DFT codebook
Selecting a certain column v in DFT codebookjFor the best codeword, when codeword selection is completed for all subchannel matrices, the size is obtained as (N)t×Nv)×NtIs precoding matrix Wv：
For each user k, a three-dimensional channel matrix is formed between the user k and the base station
After precoding in the vertical direction, the channel matrix becomes an equivalent two-dimensional channel matrix HequalWherein, in the step (A),
h is to beequalViewed as an equivalent horizontal channel, equivalent horizontal channel HequalIs of size Nr×Nt。
As shown in fig. 2, the uniform distribution module 7 includes: the system comprises a distribution module chip 10, an information processing system 11, a fault identification alarm system 12, a communication system 13, a distribution module shell 14, a touch screen 15, a button 16, a connecting groove 17, an extended function groove 18 and a loudspeaker 19.
The distribution module chip 10 is mounted inside the distribution module housing 14.
The information processing system 11 is built in the distribution module chip 10 and can collect information fed back by the satellite monitoring module, the manual follow-up module, the natural recovery module, the water collection module and the rainwater allocation module.
The fault detection and alarm system 12 is built into the chip 10 of the distribution module.
The communication system 13 is built in the extended function slot 18.
The touch screen 15 is mounted in the middle of the surface of the dispensing module housing 14.
The button 16 is mounted on the right side of the electronic screen location on the face of the dispensing module housing 14.
The connecting slot 17 is embedded to the left of the face of the distribution module housing 14.
The extended function slot 18 is recessed above the surface of the distribution module housing 14.
The speaker 19 is mounted to the right of the face of the dispensing module housing 14.
As shown in fig. 3, the water pump and delivery module 8 comprises a water pump and delivery P L C control system 20, a fault identification alarm system 21, a communication system 22, a water pump and delivery module control cabinet shell 23, a connecting groove 24, a fault identification alarm lamp 25 and a loudspeaker 26.
The water pump delivery P L C control system 20 is installed inside the water pump delivery module control cabinet shell 23.
The fault recognition alarm system 21 is arranged in a P L C module of a water pump delivery P L C control system 20.
The communication system 22 is built in the P L C module of the water pump and delivery P L C control system 20.
The connecting groove insert 24 is embedded on the left of the surface of the control cabinet shell 23 of the water pump and delivery module.
The fault identification alarm lamp 25 is arranged above the surface of the shell 23 of the water pump and water delivery module control cabinet.
The loudspeaker 26 is embedded in the right side of the surface of the water pump and delivery module control cabinet shell 23.
The working principle of the invention is as follows: the information such as soil moisture condition, drought condition and the like on the grassland can be fed back to the alarm module through the satellite monitoring module 1 and the manual follow-up module 2, and then workers can know that the grassland is lack of moisture so as to be processed through the uniform distribution module 7; the water collecting module 4 and the rainwater allocation module 5 transmit information of moisture location, moisture content, rainfall location and rainfall amount to the uniform processing module 7, and then the uniform processing module 7 uniformly distributes water in each area to enable the water utilization in each area of the grassland to reach a normal and reasonable level; after the uniform distribution module 7 gives an instruction, the water pump water delivery module 8 controls the water pump to deliver water to each area, and after the water reaches the area, the irrigation module 9 starts an irrigation mode to uniformly spill water, so that the aim of water collection and moisture preservation of the grassland is fulfilled; the natural recovery module 3 is used for self-grassland recovery by relying on the force of the nature.
The method has the advantages that the moisture on the grassland is monitored, intelligentized and reminded by alarm in different modes, and the treatment on the arid area on the grassland is facilitated; by monitoring rainwater, water resource distribution in different areas is reasonably arranged, so that moisturizing is better realized, and grassland recovery is facilitated; the water is collected and moisturized by means of the force of the nature, and the natural recovery is realized; the invention has clear and reasonable design thought, evenly distributes and rationalizes the water on the grassland, ensures that the water is beneficial to reaching a reasonable level and is suitable for popularization. In addition, each system of the water collecting and moisturizing system for recovering the grassland adopts a dual-system guarantee crash-proof technology, so that the system crash caused by overlarge hardware and information of equipment can be prevented.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (4)
1. A water collecting and moisturizing system for recovering grasslands is characterized by comprising a satellite monitoring module, a manual follow-up module, a natural recovery module, a water collecting module, a rainwater allocation module, an alarm module, an even distribution module, a water pump and delivery module and an irrigation module;
a satellite monitoring module: the satellite monitoring module is connected with the alarm module and the uniform distribution module, and the grassland condition is fed back to the alarm module and the uniform distribution module through satellite monitoring;
the process of the satellite monitoring module for constructing the unified operation and maintenance data model is as follows:
firstly, selecting reference alarm information parameter vector and establishing reference number sequence X0，
X0＝{X0(t)|t＝1,2,…,n}＝(X0(1),X0(2),…,X0(n))
Wherein t represents the time, X0Representing alarm information, wherein n represents the characteristic dimension of the parameter vector of the alarm information;
secondly, assuming that m pieces of comparative fault alarm information data exist, a comparative sequence Xi is established
Xi＝{Xi(t)|t＝1,2,…,n}＝(Xi(1),Xi(2),…,Xi(n)),i＝1,2,…,m
Then, a comparison sequence X is establishediTo reference number series X0Correlation coefficient ζ at time ti(t)
Where ρ is the resolution coefficient ρ ∈ [0, + ∞ ], the larger ρ is, the higher the resolution, the smaller ρ is, the lower the resolution, and finally, the comparison sequence X is calculatediTo reference number series X0Degree of association of
A manual circulation module: the manual follow-up module is connected with the alarm module, the manual follow-up module is connected with the uniform distribution module, and the grassland condition is fed back to the alarm module and the uniform distribution module through manual follow-up;
a natural recovery module: the natural recovery module is connected with the uniform distribution module and is used for performing grassland moisturizing recovery through the force of the nature;
the water collecting module: the water collecting module is connected with the uniform distribution module and transmits water collecting information such as the amount of collected water, the water collecting place and the like to the uniform distribution module;
a rainwater blending module: the rainwater allocation module is connected with the uniform distribution module and transmits rainwater information of different places to the uniform distribution module;
an even distribution module: the uniform distribution module is connected with the satellite monitoring module, the manual follow-up module, the natural recovery module, the water collection module and the rainwater allocation module, collects and transmits feedback information, arranges the information and transmits new information to the water pump and water delivery module;
water delivery module of water pump: the water pump water delivery module is connected with the uniform distribution module, and the water pump is controlled to work after receiving information to deliver water in different places;
and the irrigation module is connected with the water pump delivery module, and can automatically control the irrigation device to irrigate and moisturize grasslands after receiving water delivered by the water pump.
2. The water collecting and moisturizing system for grassland recovery as claimed in claim 1, wherein the alarm module is connected with the satellite monitoring module and the manual follow-up module, and can give an alarm when the grassland condition does not reach the standard.
3. The water collection and moisturizing system for grassland restoration according to claim 1, wherein the uniform distribution module comprises: the system comprises a distribution module chip, an information processing system, a fault identification alarm system, a communication system, a distribution module shell, a touch screen, a button, a connecting groove, an extended function groove and a loudspeaker;
the distribution module chip is arranged inside the distribution module shell;
the information processing system is arranged in the distribution module chip and used for collecting information fed back by the satellite monitoring module, the manual follow-up module, the natural recovery module, the water collecting module and the rainwater allocation module;
the information processing system user k receives a signal ykThen, firstly, the
Performing channel estimation to obtain a size Nr×(Nt×Nv) The sub-channel matrix between the jth transmitting antenna and the receiving antenna at the base station end is assumed to be
Subchannel matrix
Is of size Nr×NvThen three-dimensional channel matrix is formed
The rewrite is:
adopting a DFT codebook to feed back in the vertical direction of the three-dimensional channel matrix, wherein the feedback form is as follows:
for each subchannel matrix according to the DFT codebook
Selecting a certain column v in DFT codebookjFor the best codeword, when codeword selection is completed for all subchannel matrices, the size is obtained as (N)t×Nv)×NtIs precoding matrix Wv：
For each user k, a three-dimensional channel matrix is formed between the user k and the base station
After precoding in the vertical direction, the channel matrix becomes an equivalent two-dimensional channel matrix HequalWherein, in the step (A),
h is to beequalViewed as an equivalent horizontal channel, equivalent horizontal channel HequalIs of size Nr×Nt；
The fault identification alarm system is arranged in a chip of the distribution module;
the communication system is arranged in the extended function slot;
the touch screen is embedded in the middle of the surface of the distribution module shell;
the button is embedded at the right side of the position of the electronic screen on the surface of the distribution module shell;
the connecting groove is embedded on the left side of the surface of the distribution module shell;
the extended function slot is embedded above the surface of the distribution module shell;
the speaker is mounted to the right of the dispensing module housing surface.
4. The water collecting and moisturizing system for grassland recovery as claimed in claim 3, wherein the water pump delivery module comprises a water pump delivery P L C control system, a fault recognition alarm system, a communication system, a water pump delivery module control cabinet shell, a connecting groove, a fault recognition alarm lamp, a loudspeaker;
the water pump water delivery P L C control system is arranged inside the shell of the water pump water delivery module control cabinet;
the fault identification alarm system is arranged in a P L C module of a water pump delivery P L C control system;
the communication system is arranged in the extended function slot;
the connecting groove is embedded on the left side of the surface of the shell of the water pump water delivery module control cabinet;
the fault identification alarm lamp is arranged above the surface of the shell of the water pump water delivery module control cabinet;
the loudspeaker is embedded on the right side of the surface of the shell of the water pump and water delivery module control cabinet.
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Citations (5)
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|---|---|---|---|---|
| CN101836573A (en) * | 2010-03-30 | 2010-09-22 | 青岛恒讯水利科技发展有限公司 | System and method for farmland intelligent-control water distribution management |
| CN103327808A (en) * | 2010-11-08 | 2013-09-25 | Pandeb控股有限公司 | An irrigation system |
| CN103329767A (en) * | 2013-06-07 | 2013-10-02 | 蒋钧 | Cold island effect device |
| EP2668846A1 (en) * | 2012-05-31 | 2013-12-04 | S-Rain Control A/S | A two-wire controlling and monitoring system for in particular irrigation of localized areas of soil |
| CN104601209A (en) * | 2015-01-26 | 2015-05-06 | 西安电子科技大学 | Cooperated multi-point transmission method suitable for 3D-MIMO (Multiple Input Multiple Output) system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836573A (en) * | 2010-03-30 | 2010-09-22 | 青岛恒讯水利科技发展有限公司 | System and method for farmland intelligent-control water distribution management |
| CN103327808A (en) * | 2010-11-08 | 2013-09-25 | Pandeb控股有限公司 | An irrigation system |
| EP2668846A1 (en) * | 2012-05-31 | 2013-12-04 | S-Rain Control A/S | A two-wire controlling and monitoring system for in particular irrigation of localized areas of soil |
| CN103329767A (en) * | 2013-06-07 | 2013-10-02 | 蒋钧 | Cold island effect device |
| CN104601209A (en) * | 2015-01-26 | 2015-05-06 | 西安电子科技大学 | Cooperated multi-point transmission method suitable for 3D-MIMO (Multiple Input Multiple Output) system |
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