1、班级学生姓名学号指导教师Researchautomatic watering system1 introductionWith the social modernization step speeding up, automation has become a development topics in todays world. Flowers growth needs to have certain environmental conditions, these conditions are mainly temperature, moisture, illumination, air c
2、omposition, composition, physical and mechanical properties of soil and nutrient solution temperature and composition, etc. Flowers can be a good growth is most important of which is the suitability for soil moisture. How to control soil moisture effectively and timely problem has already become the
3、 flowers AiHuaZhe most issue of concern. Flower proverbs said: dont live in the water, long is fat. Potted flowers and plants due to the volume small, poor water retention performance, large evaporation nor groundwater supply limited by certain conditions, such as the reason, not to drought, water i
4、s particularly important. If potted flower water, plant physiological activities will damage in the body, the absorption of potassium, boron, calcium phosphate is weak, and the lack of these elements can lead to poor growing point nearby growth. Potted flower water shortage will cause soil nutrient
5、concentrations are relatively high, also appear the most easily hurt fat . Flowers grow, most come from the soil absorption, keep soil moisture content, appropriate is the normal development of flowers and necessary conditions to obtain higher GuanShangPin qualitative. Common flowers according to th
6、e water requirement of habits and the different water environment adaptability, can be divided into aquatic flowers and plants, wet flowers, flowers and xerophytic flowers in four. The amount of water in different we need to water the flowers are not the same as 3. Different flower water demand is d
7、ifferent, the same flower in different growth stage required quantity is also different. Flowers requirement for soil water varies in each growth stage. We according to the growing season andgrowth period of flower arrange . To sum up, the reasonable water potted flower is particularly important. Wi
8、th the constant improvement of automation equipment, all kinds of automatic watering the flowers device also from time to time into the society. According to soil moisture sensor design of automatic watering flowers system can according to crops and different growth stages to the specific needs of e
9、nvironmental conditions, adjust to control soil moisture flowers, let the flower can grow well.2 automatic watering technique3.1 based on PC technology research with the development of computer technology with each passing day, the PC can not only used in scientific computing, data processing, etc.,
10、 are widely used in industrial production of automatic control, automatic watering flowers requires real-time detection of soil moisture. Real time refers to the timely response to a random request of external events, and fast enough to complete the processing of external events, real-time control o
11、f all equipment and real-time tasks coordinated operation . The main characteristics of the real-time system is real-time and reliability. With the constant improvement of the PC performance and reliability, PC machine widely used in real-time systems, and the current general operating system based
12、on PC （such as WINDOW S systems） do not have good real-time performance, can not satisfy most timing indicator of real- time systems. In order to be able to realize the main control PC and the task of data exchange between PC, WINDOWS and real-time operating systems must be developed to the communic
13、ation protocol of data exchange platform, it can be based on a serial port, parallel port, network adapter and USB I/O devices, etc. 3.2 based on the PIC microcontroller technology research of PIC series single chip microcomputer is produced by Microchip companies in the United States, is one of the
14、 most widely used PIC16C57 MCU series, there is a lot of about the application of the single-chip microcomputer. The microcontroller using concise RISC structure, two stage instruction pipeline, structure can be completed in a period at the sametime the execution of an instruction and the next instr
15、uction to take; Using harvard storage structure of double bus, the data and instructions completely separated from the transfer bus, avoid the occurrence of the bottleneck problems; Itself with 8- bit A/D conversion parts, with the synchronous serial port module. Solved the sensor detection by scali
16、ng, display shows garbled, due to interference of electromagnetic valve actuators are some problems such as wrong operation, such as automatic watering system able to better use and flowers, but traditional programming and 51 MCU has certain difference, cant quickly grasp. 3.3 research based on the
17、technology of MCS - 51 single chip microcomputer MCS - 51 series microcontroller is the more familiar with the single chip microcomputer, in the literature is the use of AT89C51, the microcontroller is integrated in a chip CPU, RAM, ROM, timer/counter and multifunction I/O needed by a computer, such
18、 as the basic features, programming is simple. Based on this series single chip microcomputer intelligent control system through the rational allocation of hardware, software design, design a set of low cost, high degree of automation of flowers automatic watering system, convenient operation, high
19、performance/price ratio, and control of flexible controller, easy to use, market supply adequate, have greater prospects for development.3 the flowers, the main application of automatic watering systemFlower automatic watering system application is very extensive. It not only can be used in domestic
20、 potted flower, after transformation can also be used in farmland, etc. We usually common drip irrigation is disguised usage of flower automatic watering system. In recent 10 years, the drip irrigation technology in our country development speed has been ranked among the top of the world, drip irrig
21、ation is mainly used in the field （cotton, corn, grape, pepper, etc.） greenhouses orchards and green belts in recent years, drip irrigation application field appeared some new changes, by greenhouses indoor small unit drip drip irrigation extension to the outdoor large outdoor unit; By the ground ac
22、cumulates drip XiangShanOu steepdevelopment; The vegetables drip drip irrigation extends to a variety of cash crops; By farm centralized area small area scattered to the rural development; With drip irrigation of high value-added crops spread to the general economic crops. In addition, the highway a
23、long the railway and also begin using drip irrigation in desert control sand greening also further application in non-agricultural sectors such as urban green space roof garden trees, although less dosage, but for the future promotion of drip irrigation provides a wider market, believe that along wi
24、th the advancement of socialist new rural construction and build a conservation-minded societys development request, the application of drip irrigation technology has become more popular. Automatic drip irrigation system is the worlds advanced countries important measures for the development of effi
25、cient agricultural water saving, Israel, Japan, the United States and some other countries have adopted advanced water-saving irrigation system. By traditional irrigation to non full irrigation development fully, by means of remote sensing, sensors for monitoring soil moisture and crop growth, monit
26、oring and prediction of irrigated water, realize automatic remote control of water management in irrigated area of dynamic management, realize the automation of irrigation water management in agriculture. In the automatic control system for popularizing agricultural irrigation area reasonably, espec
27、ially in arid and semiarid region, not only can improve the utilization of water resources, alleviate the problem of the growing scarcity of water resources, also can increase crop yield, reduce the cost of agricultural products. Efficient agriculture and precision agriculture requires us to improve
28、 the utilization rate of water resources and will be developed, ShuPeiShui water, irrigation, water resources reasonable use and rainfall, evaporation, soil moisture and crop water requirement law aspects into consideration, reasonable deployment of water resources comprehensive many factors. Theref
29、ore, development and promotion of agricultural water-saving irrigation control the urgent needs of the new technology is to realize the agricultural modernization.4 the flowers, the development prospects of automatic watering systemWith the continuous development of society automation equipment is m
30、ore and more common, flowers, of course, automatic water system will be widely used. Because people always busy forget to his beloved potted flower, or because to take care of considerate enough so that the flowers wither away, automatic watering system is solved the problem very well. Flowers can a
31、ccording to need to adjust the humidity range automatic watering system, which is designed according to the water requirement of different plant habit. In later life, it will no longer be confined to the application of flowers, can also be used for farmland crops5 conclusionFlower automatic watering
32、 system with convenient, cost-effective and can meet the needs of some urban busy crowd and some AiHuaZhe and more and more get the welcome of people. Now in the market sales of some automatic watering device mainly use time function for automatic watering flowers, although can be automated but not real-time detection of soil moisture resulting in floral water control is not strict, eventually flowers cant grow very well. In this paper, some new design methods, improve the degree of automation, intelligent automatic watering flowers, believe this system will get t
