【摘 要】
：
Spring continually is the working way of traditional orchard spring machine.Large gap exist in small orchard trees and the trees are sparse.Spring in the gap not only waste of pesticide,but also pollu
【机 构】
：
Institute of Agricultural Facilities and Equipment,Jiangsu Academy of Agricultural Sciences
【出 处】
：
第五届农药与环境安全国际学术研讨会暨第四届植保机械与施药技术国际研讨会( 5th International Sympo
论文部分内容阅读
Spring continually is the working way of traditional orchard spring machine.Large gap exist in small orchard trees and the trees are sparse.Spring in the gap not only waste of pesticide,but also pollution the environment.This paper design the control system based on target laser detection,which fix on the 3WGF-300C air-assisted spring machine.Through 3 laser sensors,the PLC can control the solenoid valves in the system.The laser beam is very fine and the size about 15mm×15mm,this defect will lead solenoid valve open many times when the laser sensor scan one orchard tree that include many leaves.The paper use the computer program way of or on 3 laser sensors,means linear spring that when 1 or more laser sensor detect a orchard tree,all solenoid valves will be trigger.In the condition of orchard trees distance 1.5m and spring pressure 0.1Mpa and velocity of spring machine 0.4m/s,the volume of application are: spring continually 11.8L,and one laser sensor control one solenoid valve 2.9L,and linear spring 4.4L,the frequency of solenoid valves working are:one laser sensor control one solenoid valve 44,57,40 times(up to the down),and linear spring 20 times.The result shows,the way of one laser sensor control one solenoid valve can save pesticide 75%,but the large working times of solenoid valves will lead the error of the control system.Linear spring not only save pesticide 65%,but also decrease the working times of solenoid valves,it can be put in application.
其他文献
The USDAs IR-4 Project conducts 75 magnitude of residue(MOR)studies per year on more than 30 chemistries and 550 field trials.IR-4 submits approximately 80 residue study reports to the US EPA annually
In continuation of our efforts for exploration of compounds containing methoxyacrylate key fragments and guanidine with excellent biological activities,we became interested in the reactivity of 2 towa
Biopesticides fall into three different types according to the active substance: microorganism,biochemical and semiochemicals.Among them,semiochemicals are considered as chemical signals produced by o
Aphids are important agricultural pests throughout the world,often causing major economic losses.Their abilities of fast breeding and easily developing resistance to insecticides make their population
The basis and precondition for realizing variable spray is how to extract the accurate biomass information of the target.Nowadays,volume is calculated to represent the geometrical characteristic of th
The diamondback moth(DBM),Plutell axylostella(L.)is one of the most destructive insect pest of cruciferous crops.The prevention and control of the moth mainly depended on the use of chemical pesticide
Melanin not only has the significant physiological function in the growth of insect but also in fungi and bacteria.Tyrosinase is the key enzyme in the formation of melanin,which distributed in animals
The reduction of pesticide aerial spraying drift is still one of the major challenges in modern agriculture.The aim of this study was to evaluate the drift potential of different types of unmanned aer
Glucosamine-6 phosphate synthase(GlmS)is the first enzyme of the hexosamine biosynthetic pathway.This enzyme catalyzes the reaction of D-fructose-6P with glutamine to afford D-glucosamine-6P and gluta
Neonicotinoids which target at nicotinic acetylcholine receptors(nAChRs)almost have no cross-resistance to conventional insecticides.However,resistance development and bee safety call for the discover