CN101283666B - Intelligent flower planting system - Google Patents

Intelligent flower planting system Download PDF

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Publication number
CN101283666B
CN101283666B CN2008100476633A CN200810047663A CN101283666B CN 101283666 B CN101283666 B CN 101283666B CN 2008100476633 A CN2008100476633 A CN 2008100476633A CN 200810047663 A CN200810047663 A CN 200810047663A CN 101283666 B CN101283666 B CN 101283666B
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China
Prior art keywords
magnetic valve
flowers
culture
local
flower
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Expired - Fee Related
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CN2008100476633A
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Chinese (zh)
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CN101283666A (en
Inventor
李通
杜骁释
唐秀东
付文武
杨瑞鹏
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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Abstract

The invention relates to an intelligent flower culture system, belongs to plant irrigation devices, solves the problems in the prior art, and is suitable for flower culture in special environments such as office buildings and offices. The intelligent flower culture system comprises a top service system and M local culture devices. The top service system comprises a local server, an intelligent mobile terminal and a PC terminal. The local server stores culture information database of various common flowers. The M local culture devices are respectively arranged in M storeies of the building and each local culture device comprises a master controller, a communication bus, a material storage tank and N flower node devices. The master controllers of the M local culture devices are connected with the local server via cables. The intelligent flower culture system can produce nutrient fluids of different formulations according to flower habits and control irrigation volume according to the flower variety and seasonal environment. The whole system works in the software-based mode with client-server structure. The administrator can check and control the system by the intelligent mobile terminal, thereby realizing intelligent flower culture.

Description

Intelligent flower planting system
Technical field
The invention belongs to the irrigating plant device, particularly a kind ofly be subjected to computer-controlled flower planting system, be used for supporting and plant flowers in office such as office, office building or public place.
Background technology
Modern society's people's work rhythm is more and more faster, operating pressure also increases thereupon, the working clan is in working time of office even surpassed the time of being in, the quality of office IAQ has directly had influence on your healthy, rise along with modern office building, the lifting of the finishing grade of office, pollution source in the office roll up, become healthy " stealthy killer ", support in office spaces such as office buildings and to plant green plants and can play undoubtedly and improve working environment, slow down the positive role of psychological pressure, allow the staff work in also as staying nature, the environment of unsoundness and joyful mood.
Support plant by artificial being responsible for, work heavy, be not easy to management on large.Having had a lot of automatic watering devices now, is that 00239259.3 " a kind of floriculture at home automatic watering device " and the patent No. are 02268880.3 " automatic flower-watering device " etc. as the patent No..But they can only water the water of fixed amount at a fixed time to flowers, can not provide that different ratio of nutrient solution and control waters the water yield according to the life habits of different flowers, different season and temperature what, the user can not check the situation of watering anywhere or anytime or watering system is implemented Long-distance Control simultaneously, is not easy to real-time system is managed.And existing automatic watering device generally only is applicable to the small-scale watering apparatus in the family, can not adapt under the working environment such as office building large-scale supporting and plant.
Summary of the invention
The invention provides a kind of intelligent flower planting system, purpose is to overcome the shortcoming of existing flowers watering apparatus, plants to be applicable to that specific environment flowers such as office building, office are supported.
Intelligent flower planting system of the present invention, constitute by top service system and M the local planting apparatus of supporting, the top service system comprises home server, intelligent mobile terminal and PC terminal, home server connects intelligent mobile terminal and PC terminal, intelligent mobile terminal and PC terminal are used for the interactive operation with the user, it is characterized in that:
Described home server is preserved the foster information database of planting of various common flowers, supports to plant the information database content and comprise that the required Different Nutrition liquid proportioning of different plants, Various Seasonal water the water yield, optimum watering time every day;
M local foster planting apparatus is installed in the M layer in building respectively, respectively comprises master controller, communication bus, material storing box and N flowers node apparatus, and material storing box and each flowers node apparatus are connected to master controller by communication bus; M local master controller of supporting planting apparatus is connected to home server by cable, realizes and the communication of top service system that M, N are natural number.
Described intelligent flower planting system is characterized in that:
Described material storing box comprises a plurality of nutrient solution containers, water receptacle, zone controller and air pump; A plurality of nutrient solution containers and water receptacle are communicated with into mixer by the flowmeter and the magnetic valve of series connection separately, and mixer is connected main delivery pipe by flowmeter, magnetic valve and the pipeline of series connection;
Described zone controller is made of single-chip microcomputer and drive circuit, is electrically connected with air pump and described each flowmeter, each magnetic valve, and connects master controller by communication bus;
Described air pump is connected with mixer, is used to advance mixotrophism liquid to pipeline.
Described intelligent flower planting system is characterized in that:
Described flowers node apparatus is made of Node Controller, a Temperature Humidity Sensor and P magnetic valve, described Node Controller is made of single-chip microcomputer and drive circuit, be electrically connected with Temperature Humidity Sensor and P magnetic valve, and connect master controller by communication bus, P is a natural number;
The corresponding separately flowerpot of a described P magnetic valve, the switch motion of P magnetic valve of Node Controller control;
The temp. and humidity of described Temperature Humidity Sensor measurement environment, measured data are transported to Node Controller, and Node Controller is adjusted the switch time of magnetic valve according to these data.
The main effect of master controller is the foster information of planting of extracting each node flowers from the database of home server.According to the different demand characteristics of different flowers, be its configuration different nutrient solution or water automatically, also can be its transporting water or nutrient solution accurately simultaneously according to the cycle of watering of different flowers or the cycle of pouring nutrient solution.Master controller connects a zone controller and a plurality of Node Controller by communication bus, each Node Controller is being controlled several magnetic valves, each solenoid control is connected to the switch of the pipeline of every potted flower grass, and every potted flower grass and corresponding magnetic valve shared in individual communication bus network unique id number.Support the data of planting in the database according to flowers in the home server, at different plant habits and different season, temperature, master controller passes through communication bus in the suitable time, under send instructions to Node Controller, the magnetic valve of the flowers of corresponding ID is opened in Node Controller control, and what of the water yield or pouring nutrition liquid measure the length control of the time of opening by the control magnetic valve water.
Material storing box is according to supporting the information of planting in the database, dispose the nutrient solution of different proportionings at different flowers, by the amount of every kind of nutrient solution of flowmeter monitoring, with the volume of the nutrient solution that guarantees configuration and the demand that ratio satisfies flowers, the nutrient solution that has configured can leave in the mixer.
Nutrient solution or water after main delivery pipe is used to carry proportioning good, and the amount of carrying liquid by flowmeter monitoring.When in the mixer when nutritious liquid or water, the air pump that is placed in the material storing box next door is inflated to the mixer the inside, utilize the principle of atmospheric pressure that the liquid in the mixer is advanced in the main delivery pipe, system can open the magnetic valve of the flowers node apparatus that needs pouring nutrient solution or water then, because air pump is constantly inflated in mixer, main delivery pipe the inside nutrient solution or water also can be subjected to atmospheric pressure and constantly push ahead, opened the flowers node of magnetic valve until arrival, finished and water or water nutrient solution.
Intelligent mobile terminal and PC terminal provide the interface of man-machine interaction for whole system, and they are connected with home server by LAN.The user can be by intelligent mobile terminal and the PC terminal state of the whole intelligent flower planting system of inquiry in real time from the database of home server, and fosterly plants plan according to what actual conditions were adjusted some flowers.
The present invention can generate the nutrient solution of different proportionings automatically according to different flowers habits, and water what of the water yield according to different plants and different environment control in season, whole system adopts the software Design Mode of client terminal/server structure simultaneously, administrative staff can check and control operation the enforcement of automatic watering system by intelligent mobile terminal anywhere or anytime, support the purpose of planting thereby reach intelligence.
Description of drawings
Fig. 1 is a composition schematic diagram of the present invention;
Fig. 2 is a material storing box structural representation of the present invention;
Fig. 3 is magnetic valve of the present invention, flowmeter connection diagram;
Fig. 4 is main delivery pipe of the present invention and flowers node apparatus connection diagram.
Embodiment
The invention will be further described below in conjunction with drawings and Examples,
As shown in Figure 1, the embodiment of the invention is supported planting apparatus by top service system and 20 this locality and is constituted, the top service system comprises home server, intelligent mobile terminal and PC terminal, home server connects intelligent mobile terminal and PC terminal, and intelligent mobile terminal and PC terminal are used for the interactive operation with the user; 20 this locality are supported planting apparatus and are installed in 20 layers of building respectively, respectively comprise master controller, communication bus, material storing box and 60 flowers node apparatus, and material storing box and each flowers node apparatus are connected to master controller by communication bus; The master controller of 20 foster planting apparatus in this locality is connected to home server by cable, realizes the communication with the top service system.
Home server safeguards that flowers support the operation plant information database, flowers support plant store in the information database server every kind of flowers the ratio of each nutrient component of watering the water yield and frequency, mixotrophism liquid irrigation amount and frequency, configuration mixotrophism liquid of Various Seasonal or the like support and plant plan information.Administrative staff can revise data message in this database according to actual conditions, can also be by the foster information data of planting of network various flowers of down loading updating on the appointed website.
Support and to plant acquiescence that plan is divided into every kind of flowers and support and plant plan and special the supporting that certain or some flowers are set planted plan.Acquiescence is supported to plant and being intended for use in every kind of flowers are carried out supporting routinely planting, and promptly supports according to the general characteristic of every kind of flowers and plants, and the acquiescence of all similar flowers is foster, and to plant plan all identical.Foster planting with the indoor pot aloe is example, waters the water yield, and spring and autumn aspect watered 1 time each about 300 milliliters in general 5-7 days together; In summer, temperature is higher, and evaporation discharge is big, needs 2-3 days to water waterside 1 time, each about 200 milliliters; Winter, but watered 1 time each about 200 milliliters in general 15-20 days.Mixotrophism liquid irrigation amount, spring, summer and autumn general every first quarter moon once, each 1 the gram potassium dihydrogen phosphate, 1 the gram urea and 1000 the gram water; Can not water winter.
Specially support that to plant plan be the adjustment of artificially carrying out according to the foster situation of planting of the reality of certain flowers or some flowers.For example the lack of water symptom has appearred in some flowers, then sets the special plan of watering for these flowers, and the water yield is watered in accelerate to water frequency or increasing; Some flowers has occurred lacking certain nutritive element and during the illness that produces, then has been that these flowers are set the special plan of watering nutrient solution, strengthens the amount of the nutrient solution of corresponding this nutritive element.
Figure 2 shows that the section of material storing box, material storing box comprises nutrient solution container 1, water receptacle 2, flowmeter 3, magnetic valve 4, air pump 5, mixer 6, zone controller 7, pipeline 8.Nutrient solution container 1, water receptacle 2, mixer 6 and connection and supporting construction adopt lucite to be processed into.
The order that zone controller 7 receives on the bus detects the signal that flowmeter 3 feeds back, and magnetic valve 4 and air pump 5 are controlled.Whether if zone controller 7 is received the order of watering nutrient solution, it is open-minded then at first the magnetic valve 4 of container of various nutrient compositions according to the command context control connection, and the nutrient solution of outflow mixes in mixer 6; Whether the amount of calculating the nutrient solution that flows out from each nutrient solution container according to the feedback signal of flowmeter 3 reaches the amount of regulation then, if reached the amount of regulation then close the magnetic valve 4 that is connecting various nutrient composition containers; Open the magnetic valve 4 and the air pump 5 that are connecting mixer 6 at last, air pump 5 can advance mixotrophism liquid to pipeline 8.If zone controller 7 receives the order of watering, the process of watering is similar to the process of pouring mixotrophism liquid.
Whether magnetic valve 4 is controlled the container of the various nutrient compositions that are used for proportioning open-minded; Flowmeter 3 is used to measure the capacity of various nutrient compositions; Air pump 5 is used for active propulsion nutrient solution or the circulation of water inside conveyance conduit, and it directly is connected with mixer 6.
Figure 3 shows that the connected mode of magnetic valve 4 and flowmeter 3, various nutrient solution containers 1 and water receptacle 2 connection traffic meters 3 are connected with mixer 6 by magnetic valve 4 again; Mixer 6 is connected with flowmeter 3, and then is connected with pipeline 8 by magnetic valve 4.
Figure 4 shows that main delivery pipe and flowers node apparatus connection diagram, the flowers node apparatus is made of Node Controller, Temperature Humidity Sensor and 15 magnetic valves 4, each Node Controller can be controlled the action of 15 magnetic valves 4, magnetic valve 4 corresponding flowerpots 10 water or water mixotrophism liquid thereby can control 15 flowerpots 10.Main delivery pipe 9 one ends connect the pipeline of material storing box, and are in parallel with 15 magnetic valves 4 of flowers node apparatus by pipeline simultaneously; Node Controller receives the order from communication bus, when receiving the order of the magnetic valve 4 of opening certain flowerpot 10 correspondence, then control the open-minded of magnetic valve 4 by drive circuit, water or mixotrophism liquid in the liquid-transport pipe-line that magnetic valve 4 is connected promptly can flow to flowerpot 10.
Temperature Humidity Sensor is used for the temp. and humidity of measurement environment, measured data are fed back to Node Controller, Node Controller is adjusted the working time of magnetic valve automatically according to these data, and then adjustment is to the water yield of watering of 10 li flowers of each flowerpot, just reduce the frequency of watering when humidity is higher, just increase the frequency of watering when humidity is low.
Master controller is regularly inquired about every kind of flowers in the flowers database server fosterly plants plan, and the order that will water or water mixotrophism liquid then sends on the communication bus.Order with pouring mixotrophism liquid is an example, idiographic flow is as follows: master controller is regularly inquired about the flowers database server, at first inquire about the plan whether each flowers has special pouring mixotrophism liquid, if the time that has then judge whether to water mixotrophism liquid, if have then read the concrete proportioning of every kind of nutrient solution in the works, then the order of proportioning is sent on the bus control area controller and Node Controller to finish the action of pouring mixotrophism liquid; If there is not the plan of special pouring mixotrophism liquid, then inquire about the plan whether each flowers has the pouring mixotrophism liquid of acquiescence, the flow process of judgement is similar to the plan of special pouring mixotrophism liquid.
The management software of intelligent mobile terminal and PC terminal comprises the plant information management, the nodal information management, and the planning management of watering, system is provided with four functional modules.Plant information management is mainly to the title of plant, and coding is bought information such as time and managed, and can carry out the interpolation of plant information, revises and deletion, in the database that is saved in calculator that these information all can be real-time; Nodal information management mainly is to nodes encoding, title, and information such as son coding manage, and can carry out the interpolation of nodal information as required, revise and operation such as deletion, and the while is node corresponding information in the new database more; The planning management of watering mainly is to realize the different plan of watering of every plant species customization.Except plant being cultivated, also can formulate other plan of watering, so that plant better grows according to the actual growing state of plant according to the training method of system default setting.For example the user can specify and water and the quantitative proportion of each nutrient solution, personal settings such as watering time, the plan of watering that system will carry out according to user's demand; System's setting provides the personal information to the user, the address of server, the function that information such as listening port are provided with.

Claims (1)

1. intelligent flower planting system, constitute by top service system and M the local planting apparatus of supporting, the top service system comprises home server, intelligent mobile terminal and PC terminal, home server connects intelligent mobile terminal and PC terminal, and intelligent mobile terminal and PC terminal are used for the interactive operation with the user; It is characterized in that:
Described home server is preserved the foster information database of planting of various common flowers, supports to plant the information database content and comprise that the required Different Nutrition liquid proportioning of different plants, Various Seasonal water the water yield, optimum watering time every day;
M local foster planting apparatus is installed in the M layer in building respectively, respectively comprises master controller, communication bus, material storing box and N flowers node apparatus, and material storing box and each flowers node apparatus are connected to master controller by communication bus; M local master controller of supporting planting apparatus is connected to home server by cable, realizes and the communication of top service system that M, N are natural number;
Described material storing box comprises a plurality of nutrient solution containers, water receptacle, zone controller and air pump; A plurality of nutrient solution containers and water receptacle are communicated with into mixer by the flowmeter and the magnetic valve of series connection separately, and mixer is connected main delivery pipe by flowmeter, magnetic valve and the pipeline of series connection;
Described zone controller is made of single-chip microcomputer and drive circuit, is electrically connected with air pump and described each flowmeter, each magnetic valve, and connects master controller by communication bus;
Described air pump is connected with mixer, is used to advance mixotrophism liquid to pipeline;
Described flowers node apparatus is made of Node Controller, a Temperature Humidity Sensor and P magnetic valve, described Node Controller is made of single-chip microcomputer and drive circuit, be electrically connected with Temperature Humidity Sensor and P magnetic valve, and connect master controller by communication bus, P is a natural number;
The corresponding separately flowerpot of a described P magnetic valve, the switch motion of P magnetic valve of Node Controller control;
The temp. and humidity of described Temperature Humidity Sensor measurement environment, measured data are transported to Node Controller, and Node Controller is adjusted the switch time of magnetic valve according to these data.
CN2008100476633A 2008-05-12 2008-05-12 Intelligent flower planting system Expired - Fee Related CN101283666B (en)

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CN103999745A (en) * 2014-04-24 2014-08-27 江苏海事职业技术学院 Automatic plant watering device
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CN104657511B (en) * 2015-03-19 2018-04-24 江苏物联网研究发展中心 Indoor flower plantation assistant system based on Android
CN105009774A (en) * 2015-07-07 2015-11-04 柳州市盛鑫隆花卉种植专业合作社 Integrated automatic irrigation control system for water and fertilizers of grapes with humidity detection
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CN111642291B (en) * 2020-06-11 2021-10-08 湖北美和易思教育科技有限公司 Artificial intelligence Internet of things indoor flower management system and method
CN112673785B (en) * 2020-12-09 2022-05-20 珠海格力电器股份有限公司 Method, device and system for generating plant feeding strategy

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318282A (en) * 2001-03-29 2001-10-24 中国科学院合肥智能机械研究所 Intelligent green house group controlling system
CN1480020A (en) * 2002-09-03 2004-03-10 许铁岩 Intellectualized lawn system
CN201004880Y (en) * 2007-02-17 2008-01-16 北京奥特思达科技有限公司 Multi-user long-range controlled automatic irrigation device
CN101162384A (en) * 2006-10-12 2008-04-16 魏珉 Artificial intelligence plant growth surroundings regulate and control expert decision-making system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318282A (en) * 2001-03-29 2001-10-24 中国科学院合肥智能机械研究所 Intelligent green house group controlling system
CN1480020A (en) * 2002-09-03 2004-03-10 许铁岩 Intellectualized lawn system
CN101162384A (en) * 2006-10-12 2008-04-16 魏珉 Artificial intelligence plant growth surroundings regulate and control expert decision-making system
CN201004880Y (en) * 2007-02-17 2008-01-16 北京奥特思达科技有限公司 Multi-user long-range controlled automatic irrigation device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
龙庆华.名优花卉生态环境计算机自动监控与管理网络系统.现代计算机 125.2001,(125),64-66.
龙庆华.名优花卉生态环境计算机自动监控与管理网络系统.现代计算机 125.2001,(125),64-66. *

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