CN116347382A - SDN data priority transmission method based on crop growth stage - Google Patents
SDN data priority transmission method based on crop growth stage Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 72
- 230000012010 growth Effects 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000003860 storage Methods 0.000 claims description 21
- 239000003102 growth factor Substances 0.000 claims description 17
- 230000003698 anagen phase Effects 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 230000035784 germination Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 230000035800 maturation Effects 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 18
- 238000010276 construction Methods 0.000 abstract description 7
- 230000005856 abnormality Effects 0.000 abstract 2
- 238000012271 agricultural production Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
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- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
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Abstract
The invention discloses an SDN data priority transmission method based on a crop growth stage, which belongs to the technical field of intelligent agriculture, and the method is characterized in that when a network is abnormal, parameters acquired in a past period of time are acquired, and each item of element information of a corresponding acquisition area of each element information acquisition sensor is analyzed, so that abnormal fluctuation is presented to data, large differences exist between actual data and ideal data, and a large amount of element information with abnormality exists in similar data, the abnormal data can be timely found by workers, and the risk brought by the occurrence of delay transmission of important data and high risk data due to unstable network is reduced; in addition, the method for preferentially transmitting the high-risk data during the network abnormality period can reduce the redundancy of network information transmission capacity during intelligent agriculture construction, thereby effectively reducing the network construction cost.
Description
Technical Field
The invention belongs to the technical field of intelligent agriculture, and particularly relates to an SDN data priority transmission method based on a crop growth stage.
Background
The rapid development of the Internet brings great changes to the traditional fields of modern industry, agriculture and the like, and by introducing the Internet technology into the traditional agriculture, workers can be helped to timely and accurately know data information related to agricultural production in the production process, respond timely according to the data information, the agricultural production management cost is reduced, and the workers can make accurate operation judgment.
Due to the influences of the intelligent agriculture construction cost limit, the follow-up expansion, the network stability influenced by the environment and the like, in some cases, the real-time transmission of the data acquired by the sensor cannot be carried out, when the partial area is abnormal, the staff cannot know the related data information in time, the implementation delay of the countermeasure is caused, the timely treatment of the abnormal problem is not facilitated, the loss expansion is possibly caused, and in order to solve the problems, the invention provides a method capable of ensuring the timely transmission of important information when the network is abnormal.
Disclosure of Invention
The invention aims to provide an SDN data priority transmission method based on a crop growth stage, which solves the problems that important information in an agricultural production process cannot be transmitted in time when a network is unstable in the prior art, so that implementation delay of a countermeasure is caused, timely treatment of an abnormal problem is not facilitated, and loss expansion is possibly caused.
The aim of the invention can be achieved by the following technical scheme:
SDN data priority transmission method based on crop growth stage comprises the following steps:
s1, marking crops to be monitored as target crops, acquiring the growth time of the target crops, judging the current sub-period of the target crops according to the growth time of the target crops, and acquiring the optimal range and the optimal value of each growth factor condition of the target crops in the current sub-period;
s2, acquiring real-time parameter values of growth elements corresponding to the target crops through an element information acquisition unit;
judging the real-time parameter values of all the growth factors through a front end judging unit;
for a real-time parameter value Cs of a growth element acquired by an element information acquisition sensor, when the real-time parameter value Cs meets that Cs is more than or equal to C1 or Cs is less than or equal to C2, and the duration of the establishment exceeds a preset time t1, a front end judging unit generates alarm information of the corresponding growth element and transmits the alarm information to a controller;
s3, when the network transmission unit can transmit the element information acquired by all the element information acquisition units with low delay, the network transmission unit transmits the element information acquired by all the element information acquisition units at the same time;
when the network transmission unit cannot realize low-delay transmission of all the element information acquired by the element information acquisition unit, entering step S4;
s4, marking a growth element acquired by an element information acquisition sensor as a target element, and calculating and acquiring an emergency transmission coefficient G of the growth element in the past preset time T1 through a controller;
and S5, preferentially transmitting the growth factor data with the large emergency transmission coefficient G according to the order of the emergency transmission coefficient G from large to small.
2. The SDN data priority transmission method based on a crop growth phase of claim 1, wherein the determining method of the sub-period is:
the whole growth period of the target crop is divided into a plurality of subcycles according to the different growth phases of the target crop.
As a further aspect of the present invention, the growth cycle includes: germination period, seedling stage, seedling recovering stage, growth vigorous stage, flowering stage and maturation stage.
As a further aspect of the present invention, the growth factors include temperature, humidity, illumination intensity, nitrogen concentration, phosphorus concentration, and potassium concentration.
As a further aspect of the present invention, the method for calculating the emergency transmission coefficient G includes:
acquiring real-time parameter values Csi of target elements at intervals of preset time T2 within the past preset time T1, wherein i is more than or equal to 1 and n is the number of the real-time parameter values of the target elements acquired within the past time T1;
according to the formula
Calculating to obtain a fluctuation coefficient F of the target element in the past T1 time;
according to the formula
Calculating to obtain a drift coefficient of the target element in the past T1 time;
wherein Csb is the optimal value of the target element in the corresponding sub-period, and it should be noted that in the past T1 time, the target crop is in the same sub-period;
the csp= (cs1+cs2+, …, +csn)/n;
according to the formula
Calculating to obtain an emergency transmission coefficient G corresponding to the target element, wherein alpha 1 and alpha 2 are preset coefficients, when the target element does not have corresponding alarm information, the value of beta 1 is 0, and when the target element has corresponding alarm information, the value of beta 1 is a preset value larger than 0;
and beta 2 is a preset value, and x is the number of growth elements which are acquired by other element information acquisition sensors and belong to the same growth element category as the target element and exist warning information in the past T1 time.
As a further scheme of the invention, for the growth factor data which is not transmitted in real time, the growth factor data is transmitted to each corresponding front-end storage unit for temporary storage;
and when the data transmission capability of the network transmission unit allows, the element information stored in the front-end storage unit is packaged and sent to the information storage unit.
As a further aspect of the present invention, the method for adjusting the received image information collected by the image collecting unit by the controller includes:
when the controller receives the alarm information, acquiring one or a plurality of corresponding element acquisition units and position information of each element acquisition unit;
selecting an image acquisition device closest to the corresponding element acquisition unit to acquire image information of the area where the corresponding element acquisition unit is located;
and preferentially transmitting the image information acquired by the image acquisition unit closest to the corresponding element acquisition device to the information storage unit.
The invention has the beneficial effects that:
1. when the network is abnormal, the invention obtains the parameters collected in a past period of time and analyzes each item of element information of the corresponding collection area according to each element information collection sensor, so that the abnormal fluctuation of the data is presented, the large difference exists between the actual data and the ideal data, and the abnormal element information exists in a large amount of similar data, the priority transmission is carried out, so that the staff can timely find out the abnormal data, and the risk brought by the situation that important data and high risk data are delayed to be transmitted due to the unstable network is reduced;
2. according to the method for preferentially transmitting the high-risk data in the network abnormal period, the redundancy of network information transmission capacity in intelligent agriculture construction can be reduced, so that the network construction cost is effectively reduced;
3. the invention can reduce the number of image information transmitted once, and can enable staff to timely know the image information in the area with abnormal conditions while not obviously improving the transmission pressure of network information, thereby being beneficial to the staff to quickly make preliminary judgment, make further response according to the result of the preliminary judgment, and remarkably reduce the loss caused by false alarm and other factors.
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The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic frame structure of an SDN data priority transmission system based on a crop growth stage of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
SDN data priority transmission method based on crop growth stage comprises the following steps:
s1, marking crops to be monitored as target crops, acquiring the growth time of the target crops through a timer unit, judging the current sub-period of the target crops according to the growth time of the target crops, and acquiring the optimal range and the optimal value of each growth factor condition of the target crops in the current sub-period;
the determining method of the subcycle comprises the following steps:
dividing the whole growth period of the target crop into a plurality of subcycles according to different growth stages of the target crop;
in one embodiment of the invention, the growth cycle comprises: germination period, seedling stage, seedling recovering stage, growth vigorous stage, flowering stage and maturation stage;
the growth factors comprise temperature, humidity, illumination intensity, nitrogen concentration, phosphorus concentration, potassium concentration and the like;
s2, acquiring real-time parameter values of growth elements corresponding to the target crops through an element information acquisition unit;
judging the real-time parameter values of all the growth factors through a front end judging unit;
for a real-time parameter value Cs of a growth element acquired by an element information acquisition sensor, when the real-time parameter value Cs meets that Cs is more than or equal to C1 or Cs is less than or equal to C2, and the duration of the establishment exceeds a preset time t1, a front end judging unit generates alarm information of the corresponding growth element and transmits the alarm information to a controller;
c1 is the maximum value of the corresponding preferred range;
c2 is the minimum value of the corresponding preferred range;
s3, analyzing the network transmission capacity of the network transmission unit through the controller, and transmitting the element information acquired by all the element information acquisition units by the network transmission unit simultaneously when the network transmission unit can transmit the element information acquired by all the element information acquisition units with low delay;
when the network transmission unit cannot realize low-delay transmission of all the element information acquired by the element information acquisition unit, entering step S4;
s4, marking a growth element acquired by an element information acquisition sensor as a target element, and calculating and acquiring an emergency transmission coefficient G of the growth element in the past preset time T1 through a controller;
specifically, the method for calculating the emergency transmission coefficient G includes:
acquiring real-time parameter values Csi of target elements at intervals of preset time T2 within the past preset time T1, wherein i is more than or equal to 1 and n is the number of the real-time parameter values of the target elements acquired within the past time T1;
according to the formula
Calculating to obtain a fluctuation coefficient F of the target element in the past T1 time;
according to the formula
Calculating to obtain a drift coefficient of the target element in the past T1 time;
wherein Csb is the optimal value of the target element in the corresponding sub-period, and it should be noted that in the past T1 time, the target crop is in the same sub-period;
the csp= (cs1+cs2+, …, +csn)/n;
according to the formula
Calculating to obtain an emergency transmission coefficient G corresponding to the target element, wherein alpha 1 and alpha 2 are preset coefficients, when the target element does not have corresponding alarm information, the value of beta 1 is 0, and when the target element has corresponding alarm information, the value of beta 1 is a preset value larger than 0;
the beta 2 is a preset value, and x is the number of growth elements which are acquired by other element information acquisition sensors and belong to the same growth element category as the target element and have alarm information in the past T1 time;
s5, according to the sequence of the emergency transmission coefficient G from large to small, the growth element data with the large emergency transmission coefficient G is preferentially transmitted, so that the network transmission unit can realize low-delay transmission of the element information acquired by the corresponding element information acquisition unit;
for the growth factor data with smaller residual emergency transmission coefficient G, transmitting the growth factor data to each corresponding front-end storage unit for temporary storage;
when the data transmission capability of the network transmission unit is recovered to a more abundant state, the element information stored in the front-end storage unit is packaged and sent to the information storage unit;
when the network is abnormal, the invention obtains the parameters collected in a past period of time and analyzes each item of element information of the corresponding collection area according to each element information collection sensor, so that the abnormal fluctuation of the data is presented, the large difference exists between the actual data and the ideal data, and the abnormal element information exists in a large amount of similar data, the priority transmission is carried out, so that the staff can timely find out the abnormal data, and the risk brought by the situation that important data and high risk data are delayed to be transmitted due to the unstable network is reduced;
in addition, the data processing method can reduce redundancy of network information transmission capability during intelligent agriculture construction, so that construction cost is effectively reduced.
In one embodiment of the present invention, the video monitoring capability of the target crop can be ensured under the condition of limited data transmission capability, and specifically, the method for adjusting the received image acquisition unit to acquire the image information by the controller comprises:
when the controller receives the alarm information, acquiring one or a plurality of corresponding element acquisition units and position information of each element acquisition unit;
selecting an image acquisition device closest to the corresponding element acquisition unit to acquire image information of the area where the corresponding element acquisition unit is located;
and preferentially transmitting the image information acquired by the image acquisition unit closest to the corresponding element acquisition device to the information storage unit.
The method can reduce the quantity of image information transmitted once, can enable staff to timely know the image information in the area with abnormal conditions while not obviously improving the transmission pressure of network information, is beneficial to the staff to quickly make preliminary judgment, and further reacts according to the result of the preliminary judgment, and can obviously reduce the loss caused by false alarm and other factors;
the above-mentioned SDN data priority transmission method based on the crop growth stage is performed by an SDN data priority transmission system based on the crop growth stage, as shown in fig. 1, where the system includes:
the element information acquisition unit comprises a plurality of element information acquisition sensors which are distributed and arranged in a planting area of the target crop, wherein each element information acquisition sensor is used for acquiring each corresponding element information of a corresponding position;
a timer unit for marking the growth time of the target crop;
the information storage unit is used for storing the information uploaded by each unit; the user reads the information in the information storage unit through the terminal equipment to review;
the front end judging unit is arranged on the element information acquisition unit and is used for judging whether each element information exceeds a preset maximum threshold value or is lower than a preset minimum threshold value, and when the corresponding element information exceeds a corresponding preset maximum threshold value or is lower than a preset minimum threshold value, the front end judging unit generates alarm information of the corresponding element information to the controller;
the front-end storage unit is used for temporarily storing the element information acquired by the element information acquisition unit;
the image acquisition units comprise a plurality of image acquisition devices which are distributed and arranged in a planting area of the target crop, each image acquisition device can acquire image information of peripheral positions in a rotating mode, coordinate information of each image acquisition device is stored in the information storage unit, and the image information acquired by the image acquisition units is transmitted to the information storage unit;
the network transmission unit is used for establishing communication connection among the image acquisition unit, the element information acquisition unit, the front-end storage unit and the controller.
And the controller is used for adjusting the priority of SDN data transmission in the crop growth stage when the data transmission capacity of the network transmission unit cannot realize low-delay transmission of the element information acquired by all the element information acquisition units according to the historical data.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (7)
1. SDN data priority transmission method based on crop growth stage is characterized by comprising the following steps:
s1, marking crops to be monitored as target crops, acquiring the growth time of the target crops, judging the current sub-period of the target crops according to the growth time of the target crops, and acquiring the optimal range and the optimal value of each growth factor condition of the target crops in the current sub-period;
s2, acquiring real-time parameter values of growth elements corresponding to the target crops through an element information acquisition unit;
judging the real-time parameter values of all the growth factors through a front end judging unit;
for a real-time parameter value Cs of a growth element acquired by an element information acquisition sensor, when the real-time parameter value Cs meets that Cs is more than or equal to C1 or Cs is less than or equal to C2, and the duration of the establishment exceeds a preset time t1, a front end judging unit generates alarm information of the corresponding growth element and transmits the alarm information to a controller;
s3, when the network transmission unit can transmit the element information acquired by all the element information acquisition units with low delay, the network transmission unit transmits the element information acquired by all the element information acquisition units at the same time;
when the network transmission unit cannot realize low-delay transmission of all the element information acquired by the element information acquisition unit, entering step S4;
s4, marking a growth element acquired by an element information acquisition sensor as a target element, and calculating and acquiring an emergency transmission coefficient G of the growth element in the past preset time T1 through a controller;
and S5, preferentially transmitting the growth factor data with the large emergency transmission coefficient G according to the order of the emergency transmission coefficient G from large to small.
2. The SDN data priority transmission method based on a crop growth phase of claim 1, wherein the determining method of the sub-period is:
the whole growth period of the target crop is divided into a plurality of subcycles according to the different growth phases of the target crop.
3. The SDN data priority transmission method based on a crop growth phase of claim 2, wherein the growth cycle comprises: germination period, seedling stage, seedling recovering stage, growth vigorous stage, flowering stage and maturation stage.
4. The SDN data priority transmission method based on a crop growth phase of claim 1, wherein the growth factors include temperature, humidity, illumination intensity, nitrogen concentration, phosphorus concentration and potassium concentration.
5. The SDN data priority transmission method based on a crop growth phase of claim 1, wherein the calculating method of the emergency transmission coefficient G is as follows:
acquiring real-time parameter values Csi of target elements at intervals of preset time T2 within the past preset time T1, wherein i is more than or equal to 1 and n is the number of the real-time parameter values of the target elements acquired within the past time T1;
according to the formula
Calculating to obtain a fluctuation coefficient F of the target element in the past T1 time;
according to the formula
Calculating to obtain a drift coefficient of the target element in the past T1 time;
wherein Csb is the optimal value of the target element in the corresponding sub-period, and it should be noted that in the past T1 time, the target crop is in the same sub-period;
the csp= (cs1+cs2+, …, +csn)/n;
according to the formula
Calculating to obtain corresponding target elementThe emergency transmission coefficient G, wherein alpha 1 and alpha 2 are preset coefficients, when the target element does not have corresponding alarm information, the value of beta 1 is 0, and when the target element has corresponding alarm information, the value of beta 1 is a preset value larger than 0;
and beta 2 is a preset value, and x is the number of growth elements which are acquired by other element information acquisition sensors and belong to the same growth element category as the target element and exist warning information in the past T1 time.
6. The SDN data priority transmission method based on a crop growth phase of claim 5, wherein for growth factor data not transmitted in real time, the growth factor data is transmitted to each corresponding front-end storage unit for temporary storage;
and when the data transmission capability of the network transmission unit allows, the element information stored in the front-end storage unit is packaged and sent to the information storage unit.
7. The SDN data priority transmission method based on a crop growth phase of claim 6, wherein the method for adjusting, by the controller, the received image acquisition unit to acquire image information is:
when the controller receives the alarm information, acquiring one or a plurality of corresponding element acquisition units and position information of each element acquisition unit;
selecting an image acquisition device closest to the corresponding element acquisition unit to acquire image information of the area where the corresponding element acquisition unit is located;
and preferentially transmitting the image information acquired by the image acquisition unit closest to the corresponding element acquisition device to the information storage unit.
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| CN102665295A (en) * | 2012-05-07 | 2012-09-12 | 浙江大学 | Agricultural environment monitoring and early-warning system and method by using distributed heterogeneous wireless sensor network facility |
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