CN112816357B - Device for monitoring growth maturity of watermelons by weighing method - Google Patents
Device for monitoring growth maturity of watermelons by weighing method Download PDFInfo
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- CN112816357B CN112816357B CN202110414689.2A CN202110414689A CN112816357B CN 112816357 B CN112816357 B CN 112816357B CN 202110414689 A CN202110414689 A CN 202110414689A CN 112816357 B CN112816357 B CN 112816357B
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Abstract
The invention discloses a device for monitoring the growth maturity of watermelons by a weighing method. The controller comprises a single weight display module, a total weight display module, a mature warning module, an automatic zero clearing module and a historical data module. The invention judges the maturity of the watermelon by using the weight change of the ripe watermelon. The weight of the watermelon is detected in real time by a weighing device with a pressure sensor, the maturity of the watermelon is confirmed by a controller according to a growth curve of the weight of the watermelon, and the cutting device is controlled to cut off the watermelon vine when the watermelon is in an ideal state. The state of all the watermelons can be known through the controller when the watermelon ripeness tester is used, the mature states of the watermelons do not need to be checked one by one, the workload is greatly reduced, and the working efficiency is improved. Moreover, the weight of the harvested watermelons can be directly checked on the controller when the watermelons are harvested, and the watermelon harvests do not need to be weighed before loading.
Description
Technical Field
The invention relates to a device for monitoring the growth maturity of watermelons by a weighing method.
Background
Watermelon is a common fruit which is very popular in summer, and China is also the largest consumer country of watermelon at present. The maturity of the watermelon is an important index for ensuring the quality of the watermelon and a key factor for influencing the value of the watermelon, and the maximum benefit can be obtained only by the watermelon with moderate maturity. Although high-quality varieties and brands are the basis for maximizing economic benefits of melon growers and melon sellers, the problem that how to ensure the selling price of the watermelon by timely detecting the maturity of the watermelon under the same brand is always troubling people is solved. Research shows that the growth process and the maturity of the watermelon have a certain relation with the weight of the watermelon, the specific gravity of immature raw watermelon is the largest, and if the watermelon grows to a certain period, the specific gravity of the watermelon is reduced along with the increase of the maturity of the watermelon, so that the weight of the watermelon is also reduced. Therefore, based on the mode of judging the watermelon maturity by monitoring the weight change of the watermelon, the device for monitoring the growth maturity of the watermelon by a weighing method is invented.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device for monitoring the growth maturity of watermelons by a weighing method, which monitors the ripening process by using a weighing device and a controller based on a mode of judging the maturity of watermelons by monitoring the weight change of watermelons.
The technical scheme adopted by the invention for solving the technical problems is as follows: the device for monitoring the growth maturity of the watermelon by a weighing method comprises a support, a hanger rod, weighing devices and a controller, wherein the hanger rod is arranged on the support, the hanger rod is provided with a plurality of weighing devices in a sliding manner, the weighing devices are provided with serial numbers, each weighing device comprises a sliding block, a pressure sensor, a data plug and a hook, the sliding block is provided with the pressure sensor, the pressure sensor is connected with the hook through a connecting end, and the hook is connected with a net bag of the watermelon;
the hanger rod is provided with a plurality of data interfaces, the pressure sensor is connected with a data plug, a circuit for connecting the data interfaces and the controller is arranged in the hanger rod, and the data plug is connected with the data interfaces in a matching way;
the controller comprises a weight display module, a curve generation module, a ripening warning module, an automatic zero clearing module and a historical data module, wherein the weight display module is used for displaying the total weight of the watermelons, the total weight of the ripe watermelons and the weight of a single watermelon; the curve generation module is used for making the growth weight trend of each watermelon into a curve graph; the maturity warning module monitors the maturity of the watermelon according to the growth curve generated by the curve generation module and prompts the watermelon to be mature; the automatic zero clearing module is used for clearing data of a display interface; the historical data module is used for storing historical data and supporting browsing and viewing.
Further, the slider includes interior slider and outer slider, set up both ends opening and with jib complex jib through-hole in the interior slider, set up the spacing slide rail groove of horizontal direction on the jib, set up in the jib through-hole with spacing slide rail groove complex stopper, interior slider slidable sets up on the jib, set up the interior slider standing groove in the outer slider, interior slider sets up in the slider standing groove, the both ends of outer slider set up the diameter and are greater than the dodging through-hole of jib through-hole, set up pressure sensor between the top of interior slider standing groove and the bottom of interior slider.
Further, the main interface of the controller displays the total weight and the total mature weight in real time, and options of defective product checking, historical data checking and mature watermelon checking, and after clicking the options, the main interface enters a sub-interface of the corresponding options;
the total weight sub-interface of the ripe watermelon comprises the total number of the ripe watermelon, the total weight of the ripe watermelon and a corresponding number, the number is clicked to enter a watermelon state interface under the number, and the serial number, the quality, the growth period, the ripe state and a growth curve diagram are displayed on the watermelon state interface;
the defective product checking interface comprises the total number of defective products, the total weight of the defective products and corresponding numbers, and the selected numbers are clicked to enter a watermelon state interface under the numbers;
under the automatic zero clearing module, after the watermelon is taken down from the weighing device, the growth information of the watermelon is automatically stored in the historical data module, and all information under the corresponding watermelon number on the display interface of the controller is cleared;
and displaying a sub option of the historical data zero clearing time under the historical data viewing interface, clicking the option and entering the corresponding historical data, wherein the background color of the numbered display is red when the watermelon is ripe and green when the watermelon is not ripe.
Further, the utility model also comprises a cutter which comprises a chuck, a main body, a push-pull type electromagnet and a push-pull type electromagnet, one side of the front face of the right end of the chuck is hinged on the main body, a clamping mechanism is arranged between the back face of the right end of the chuck and the main body, the right end of the chuck and the left end of the main body are respectively provided with a melon vine passing port matched with the melon vine, the main body is internally provided with a push broach slide rail with an opening at the left side and matched with the push broach, the push broach is slidably arranged in the push broach slide rail, the right end of the push broach slide rail is provided with a push-pull electromagnet, the output shaft of the push-pull electromagnet is connected with a push-type broach, a push-type broach slot with an opening at the right side and matched with the push-type broach is arranged in the chuck, the push-pull electromagnet is connected with a data plug through an electric wire, when the ripeness early warning module monitors that the watermelon ripens, the output shaft of the push-pull type electromagnet pushes the push knife to cut off the watermelon vine.
Further, the push broach comprises a hilt and a blade, the hilt is provided with a blade clamping groove, the blade is arranged in the blade clamping groove, and a fixing screw is arranged between the blade clamping groove and the blade.
Further, the weighing device still includes the pilot lamp, the pilot lamp sets up on the slider, pilot lamp connection director when ripe warning module monitors that the watermelon is ripe, the pilot lamp becomes red.
Furthermore, the dustproof plug also comprises a data interface dustproof plug, and the data interface dustproof plug is arranged in the data interface.
Furthermore, the maturity warning module comprises an eight-maturity option and a nine-maturity option, corresponding options are selected, and the maturity warning module warns that the watermelon is mature under corresponding maturity.
Further, the ripening warning module monitors the ratio of the daily weight gain of the growth curve of the watermelon under a certain number to the total weight T of the watermelon
When the/T is between 0.012 and 0.02, the watermelon is judged to be eighty percent ripe; when in use
When the/T is between 0.008 and 0.01, the watermelon is judged to be nine-ripe.
Further, the eight maturity standards of the maturity warning module are
T =0.018, nine-maturity is 0.008.
The invention has the beneficial effects that: the invention provides a device for monitoring the growth maturity of watermelons by a weighing method, which judges the maturity of watermelons by using the weight change of the ripe watermelons, detects the weight of the watermelons in real time by using a weighing device with a pressure sensor, confirms the maturity of the watermelons by a controller according to the growth curve of the weight of the watermelons, and controls a shearing device to shear a watermelon vine when the watermelon ripens to an ideal state, so that the quality is prevented from being influenced by continuous ripening of the watermelons. The state of all the watermelons can be known through the controller, and the watermelons do not need to be checked one by one, so that the workload of a watermelon farmer is greatly reduced, the labor cost is saved, and the working efficiency is improved. Moreover, the weight of the harvested watermelons can be directly checked on the controller when the watermelons are harvested, and the watermelon harvests do not need to be weighed before loading.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a front cross-sectional view of a weighing apparatus and hanger bar of the present invention;
FIG. 3 is an enlarged schematic view of a detail A of FIG. 1 of the present invention;
FIG. 4 is a schematic structural diagram of the guillotine cutter of the present invention;
FIG. 5 is a top cross-sectional view of a shear of the present invention;
FIG. 6 is a schematic structural view of the push broach according to the present invention;
FIG. 7 is a schematic structural view of a hanger bar and a data interface dust plug according to the present invention;
FIG. 8 is a main interface of the controller of the present invention;
FIG. 9 is a sub-interface of the total weight option for ripe watermelon of the present invention;
FIG. 10 is a watermelon state interface according to the present invention.
In the figure, a support 1, a suspender 2, a limiting slide rail groove 21, a data interface 22, a data interface dust plug 23, a weighing device 3, a slider 30, an inner slider 31, a suspender through hole 311, a limiting block 312, an outer slider 32, an inner slider placing groove 321, an avoiding through hole 322, a pressure sensor 33, a data plug 34, a hook 35, a net bag 36, a cutter 4, a chuck 41, a buckling mechanism 411, a melon vine passing hole 412, a push broach slot 413, a main body 42, a push broach slide rail 421, a push broach 43, a handle 431, a blade 432, a fixing screw 433, a push-pull electromagnet 44 and a melon vine 666.
Detailed Description
For a better understanding of the present invention, embodiments of the present invention are explained in detail below with reference to fig. 1 to 10.
The directions "front, back, left, right, up and down" described herein are based on the directions "front, back, left, right, up and down" in fig. 1.
The invention discloses a device for monitoring the growth maturity of watermelons by a weighing method, which comprises a support 1, a suspender 2, a weighing device 3 and a controller. The suspender 2 is arranged on the support 1, and the suspender 2 is supported by arranging a plurality of supporting frames 1. The hanger rod 2 is provided with a plurality of weighing devices 3 in a sliding mode, and the weighing devices 3 are provided with serial numbers to facilitate position confirmation. Weighing device 3 includes slider 30, pressure sensor 33, data plug 34 and couple 35, set up pressure sensor 33 on the slider 30, pressure sensor 33 passes through the link connection couple 35, the string bag of couple 35 connection watermelon. The weighing device 3 can obtain the weight of the watermelon by the pressure sensor 33, but the pressure sensor 33 can also use a tension sensor or other devices capable of obtaining the weight of the watermelon.
As shown in fig. 3, in particular, the slider 30 comprises an inner slider 31 and an outer slider 32. Set up both ends opening and with jib 2 complex jib through-hole 311 in the interior slider 31, set up the spacing slide rail groove 21 of horizontal direction on the jib 2, set up in the jib through-hole 311 with spacing slide rail groove 21 complex stopper 312, interior slider 31 slidable sets up on jib 2, set up interior slider standing groove 321 in the outer slider 32, interior slider 31 sets up in interior slider standing groove 321, the both ends of outer slider 32 set up the diameter and are greater than the dodging through-hole 322 of jib through-hole 311, set up pressure sensor 33 between the top of interior slider standing groove 321 and the bottom of interior slider 31. The bottom of the outer sliding block 32 is provided with a stay wire as a connecting end, the stay wire is connected with a hook 35 at the bottom of the outer sliding block 32, and the tail end of the hook 35 is provided with a net bag 36. After the watermelon grows to a suitable size, the watermelon is placed in the net bag 36.
The suspension rod 2 is provided with a plurality of data interfaces 22, the pressure sensor 33 is connected with a data plug 34, a circuit for connecting the data interfaces 22 and the controller is arranged in the suspension rod 2, and the data plug 34 is connected with the data interfaces 22 in a matched mode. Because the varieties and sizes of the watermelons are different, the number of the data interfaces 22 can be set to be large, the weighing device 3 can be arranged on the suspension rod 2 in a sliding mode, and the data interfaces 22 nearby are selected to be connected according to actual conditions. Of course, in order to protect the unused data interface 22, a data interface dust plug 23 is further included, and the data interface dust plug 23 is inserted into the data interface 22. Through the connection of the data interface 22 and the data plug 34, the signal of the pressure sensor 33 is fed back to the controller, and the controller monitors the state of the watermelon.
The controller comprises a weight display module, a curve generation module, a maturity warning module, an automatic zero clearing module and a historical data module. The weight display module is used for displaying the total weight of the watermelon, the total weight of the ripe watermelon and the weight of a single watermelon. The curve generation module is used for making a curve graph of the growth weight trend of each watermelon. The maturity warning module monitors the maturity of the watermelon according to the growth curve generated by the curve generation module and prompts the watermelon to be mature. The automatic zero clearing module is used for clearing data of the display interface. The historical data module is used for storing historical data and supporting browsing and viewing.
As shown in fig. 8-9, the main interface of the controller displays the gross weight and the ripe gross weight in real time, and options of defective item check, historical data check and ripe watermelon check, and enters a sub-interface of a corresponding option after clicking the option;
the total weight sub-interface of the ripe watermelon comprises the total number of the ripe watermelon, the ripe total weight and a corresponding number, and the watermelon state interface under the number is entered by clicking the selection number. The defective product checking interface comprises the total number of defective products, the total weight of the defective products and corresponding numbers, and the watermelon state interface under the numbers is entered by clicking the selection numbers.
As shown in FIG. 10, the watermelon status interface displays the number, quality, growth cycle, maturity status and growth profile. Wherein the quality and the growth period are real-time, the mature state is divided into three conditions according to the state of the watermelon, namely yes, no and residual, and the date of system identification is provided.
Under the automatic zero clearing module, after the watermelon is taken down from the weighing device, the growth information of the watermelon is automatically stored in the historical data module, and all information under the corresponding watermelon number on the display interface of the controller is cleared.
And displaying a sub-option of the historical data zero clearing time under the historical data viewing interface, clicking the option and then entering the corresponding historical data, wherein the display content of all pages under the historical data is a final result before clearing, and the data cleared by the displayed interface before can be viewed through the historical data viewing interface.
Under all the display interfaces, the background color of the numbered display is red when the watermelon is ripe, and is green when the watermelon is not ripe, and whether the watermelon is ripe or not can be directly confirmed through the color of the number.
In order to avoid that the watermelon is ripe and big because the watermelon is not harvested in time after being ripe, the watermelon ripeness-preventing device also comprises a cutter 4. The shear comprises a collet 41, a body 42, a push-pull knife 43 and a push-pull electromagnet 44. The articulated setting in main part 42 in the positive one side of chuck 41 right-hand member, set up buckle mechanism 411 between the back and the main part 42 of chuck 41 right-hand member, the right-hand member of chuck 41 and the main part 42 left end set up respectively and melon vine 666 complex melon vine pass through mouth 412, set up left side opening in the main part 42 and with broach complex broach slide rail 421, broach 43 slidable sets up in broach slide rail 421, the right-hand member of broach slide rail 421 sets up push-pull electromagnet 44, push-pull electromagnet 44's output shaft push-pull sword 43, set up the right side opening in chuck 41 and with broach 43 complex broach slot 413, push-pull electromagnet 44 passes through connection of electric lines data plug 34, and the data plug 34 that data plug 34 and pressure sensor 33 are connected that this place push-pull electromagnet 44 is connected is the same, inserts data plug 34 through data plug 34, the cutter 4 is connected with a controller. When the ripeness early warning module monitors that the watermelon ripens, the output shaft of the push-pull electromagnet 44 pushes the push knife 43 to cut off the watermelon vine.
As shown in fig. 4, the clipper 43 is within the clipper slide 421 prior to use. When in use, the clamping mechanism 411 at the joint of the clamping head 41 and the main body 42 is firstly opened, and the melon vine passing port 412 is clamped into the melon vine 666 and then closed. When the weight of the watermelon does not increase continuously for a plurality of days and begins to fall back, the watermelon is proved to be mature. At this time, the controller controls the push-pull type electromagnet 44 to push the push knife 43 out of the push knife slide rail 421, so as to cut off the watermelon vine 666 and cut off the nutrition source of the watermelon, thereby preventing the watermelon from being well-done. In order to avoid that the push broach 43 is withdrawn between the watermelon vine and the watermelon, the cut surface may be neat and continue to grow, the push broach 43 is always pushed out from the push broach slide rail 421 and inserted into the push broach slot 413 until the watermelon is withdrawn.
The maturity warning module comprises an eight-maturity option and a nine-maturity option, selects the corresponding options, and warns that the watermelon is mature under the corresponding maturity. When the ripening warning module monitors the ratio of the daily weight gain of the growth curve of the watermelon under a certain number to the total weight T of the watermelon
When the/T is between 0.012 and 0.02 (for example, the total weight of the watermelon is 2.5kg, the daily gain interval is between 30g and 50 g), the watermelon is judged to be eight-ripe; when in use
When the/T is between 0.008 and 0.01, the watermelon is judged to be nine-ripe. The eight maturity standards of the maturity warning module are
T =0.018, nine-maturity is 0.008.
Considering the service life of the push broach 43, the push broach 43 includes a handle 431 and a blade 432, the handle is provided with a blade slot, the blade is arranged in the blade slot, a fixing screw 433 is arranged between the blade slot and the blade 432, the push broach 43 is designed to be replaceable, the blade 432 can be replaced in time when being worn, and the service life of the cutter 4 is prolonged.
In order to increase the identification degree, the invention further comprises an indicator light 38, wherein the indicator light 38 is arranged on the outer slide block 32 and is connected with a mature warning module of the controller. Under normal conditions, the color of the indicator light 38 is green, and when the watermelon is ripe, the color is red, so that the watermelon grower can conveniently confirm the position and collect the watermelon at the later stage.
It should be noted that although the present specification describes embodiments, not every embodiment includes only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (7)
1. The utility model provides a device of weighing method monitoring watermelon growth maturity which characterized in that: the watermelon weighing device comprises a support, a hanging rod, weighing devices and a controller, wherein the hanging rod is arranged on the support, the hanging rod is provided with a plurality of weighing devices in a sliding manner, the weighing devices are provided with numbers, each weighing device comprises a sliding block, a pressure sensor, a data plug and a hook, the sliding block is provided with the pressure sensor, the pressure sensor is connected with the hook through a connecting end, and the hook is connected with a net bag of a watermelon;
the hanger rod is provided with a plurality of data interfaces, the pressure sensor is connected with a data plug, a circuit for connecting the data interfaces and the controller is arranged in the hanger rod, and the data plug is connected with the data interfaces in a matching way;
the controller comprises a weight display module, a curve generation module, a ripening warning module, an automatic zero clearing module and a historical data module, wherein the weight display module is used for displaying the total weight of the watermelons, the total weight of the ripe watermelons and the weight of a single watermelon; the curve generation module is used for making the growth weight trend of each watermelon into a curve graph; the maturity warning module monitors the maturity of the watermelon according to the growth curve generated by the curve generation module and prompts the watermelon to be mature; the automatic zero clearing module is used for clearing data of a display interface; the historical data module is used for storing historical data and supporting browsing and viewing;
the watermelon ripeness early warning device comprises a chuck, a main body, a push-pull electromagnet and a data plug, wherein the chuck comprises a chuck, a main body, a push-pull knife and a push-pull electromagnet, one side of the front face of the right end of the chuck is hinged to the main body, a buckling mechanism is arranged between the back face of the right end of the chuck and the main body, the right end of the chuck and the left end of the main body are respectively provided with a watermelon ripeness passing port matched with a watermelon ripeness, a push-pull knife sliding rail with a left opening and matched with the push-pull knife is arranged in the main body, the push-pull knife is slidably arranged in the push-pull knife sliding rail, the right end of the push-pull electromagnet is provided with the push-pull electromagnet, an output shaft of the push-pull electromagnet is connected with the push-pull knife, a push-pull slot with a right;
the maturity warning module comprises an eight-maturity option and a nine-maturity option, selects the corresponding options, and warns that the watermelon is mature under the corresponding maturity;
when the ripening warning module monitors the ratio of the daily weight gain of the growth curve of the watermelon under a certain number to the total weight T of the watermelon
When the/T is between 0.012 and 0.02, the watermelon is judged to be eighty percent ripe; when in use
When the/T is between 0.008 and 0.01, the watermelon is judged to be nine-ripe.
2. The device for monitoring the growth maturity of watermelon by weighing method as claimed in claim 1, wherein: the slider includes interior slider and outer slider, set up both ends opening in the interior slider and with jib complex jib through-hole, set up the spacing slide rail groove of horizontal direction on the jib, set up in the jib through-hole with spacing slide rail groove complex stopper, interior slider slidable sets up on the jib, set up interior slider standing groove in the outer slider, interior slider sets up in the slider standing groove, the both ends of outer slider set up the diameter and are greater than the dodging through-hole of jib through-hole, set up pressure sensor between the top of interior slider standing groove and the bottom of interior slider.
3. The device for monitoring the growth maturity of watermelon by weighing method as claimed in claim 1, wherein: the main interface of the controller displays the total weight and the total mature weight in real time, and options of defective product checking, historical data checking and mature watermelon checking, and enters a sub-interface of a corresponding option after clicking the option;
the total weight sub-interface of the ripe watermelon comprises the total number of the ripe watermelon, the total weight of the ripe watermelon and a corresponding number, the number is clicked to enter a watermelon state interface under the number, and the serial number, the quality, the growth period, the ripe state and a growth curve diagram are displayed on the watermelon state interface;
the defective product checking interface comprises the total number of defective products, the total weight of the defective products and corresponding numbers, and the selected numbers are clicked to enter a watermelon state interface under the numbers;
under the automatic zero clearing module, after the watermelon is taken down from the weighing device, the growth information of the watermelon is automatically stored in the historical data module, and all information under the corresponding watermelon number on the display interface of the controller is cleared;
and displaying a sub option of the historical data zero clearing time under the historical data viewing interface, clicking the option and entering the corresponding historical data, wherein the background color of the numbered display is red when the watermelon is ripe and green when the watermelon is not ripe.
4. The device for monitoring the growth maturity of watermelon by weighing method as claimed in claim 1, wherein: the push broach comprises a hilt and a blade, wherein the hilt is provided with a blade clamping groove, the blade is arranged in the blade clamping groove, and a fixing screw is arranged between the blade clamping groove and the blade.
5. The device for monitoring the growth maturity of watermelon by weighing method as claimed in claim 1, wherein: the weighing device further comprises an indicator light, the indicator light is arranged on the sliding block and connected with the controller, and when the ripeness warning module monitors that the watermelon is ripe, the indicator light turns red.
6. The device for monitoring the growth maturity of watermelon by weighing method as claimed in claim 1, wherein: the dustproof plug of the data interface is arranged in the data interface.
7. The device for monitoring the growth maturity of watermelon by weighing method as claimed in claim 1, wherein: the eight maturity standards of the maturity warning module are
T =0.018, nine-maturity is 0.008.
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| CN202110414689.2A CN112816357B (en) | 2021-04-17 | 2021-04-17 | Device for monitoring growth maturity of watermelons by weighing method |
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| CN102714974A (en) * | 2012-06-18 | 2012-10-10 | 中国农业大学 | Cucumber harvesting device and using method thereof |
| CN104266935A (en) * | 2014-10-22 | 2015-01-07 | 合肥星服信息科技有限责任公司 | Multi-functional portable balance for determining maturity of watermelon |
| CN107328683A (en) * | 2017-09-05 | 2017-11-07 | 卢浩然 | A kind of Watermelon Maturity monitoring device |
| CN211553714U (en) * | 2020-08-05 | 2020-09-22 | 潍坊郭牌农业科技有限公司 | Watermelon maturity nondestructive test device |
| CN111929299A (en) * | 2020-08-10 | 2020-11-13 | 王美华 | Agricultural product planting analysis and management system based on machine vision |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104866970B (en) * | 2015-05-26 | 2018-07-24 | 徐吉祥 | Intelligent Cultivate administration method and intelligent planting equipment |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714974A (en) * | 2012-06-18 | 2012-10-10 | 中国农业大学 | Cucumber harvesting device and using method thereof |
| CN104266935A (en) * | 2014-10-22 | 2015-01-07 | 合肥星服信息科技有限责任公司 | Multi-functional portable balance for determining maturity of watermelon |
| CN107328683A (en) * | 2017-09-05 | 2017-11-07 | 卢浩然 | A kind of Watermelon Maturity monitoring device |
| CN211553714U (en) * | 2020-08-05 | 2020-09-22 | 潍坊郭牌农业科技有限公司 | Watermelon maturity nondestructive test device |
| CN111929299A (en) * | 2020-08-10 | 2020-11-13 | 王美华 | Agricultural product planting analysis and management system based on machine vision |
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