Intelligent timer

Abstract

The invention relates to an intelligent timer which comprises a soil humidity measurement controller, connectors with fine-adjustable thread ring size and pitch, an energy-saving spray irrigation timer with a multipurpose interface, and a water distributor. A method of directly measuring and controlling soil humidity at low cost is provided. Air humidity and soil humidity are not equal sometimes. The method uses no humidity-sensitive resistor but a simple electrode directly inserted into soil to measure and control soil humidity; when the soil dries, intelligent irregular irrigation is started when the resistance of the electrode inserted into the soil reaches a threshold voltage; the low-cost and reliable intelligent timer is made possible. According to the principle that wire pitch diminishes and spring diameter enlarges when a spring is stressed, a plurality of fine-adjustable thread rings (41) are allowed to be smaller in inter-ring spacing, namely smaller in pitch, by the aid of the sides of a plurality of clamp springs (48); with diameter increasing, the springs radially squeeze the fine-adjustable thread rings (41) to approach the center, and the thread connectors can also be quickly clamped axially and radially.

Description

technical field [0001] The invention relates to a control method for water flow used in environmental protection and landscaping. It is an intelligent timer, a timer with a joint that can fine-tune the size and pitch of the threaded ring, and a mechanical timer with a newly added auxiliary spring. The improvement on the basis of canceling the stainless steel long axis, changing the control on both sides of the large tube and adding multi-purpose interface energy-saving sprinkler timer, the important content is to use a simple method of measuring soil moisture for the timer Improve. Background technique [0002] The desire to pursue environmental protection and landscaping is endless; there are also many patents on the control method of watering water flow, and the timing switch of garden sprinklers controlled by both sides of the long axis, such as patent US7252113B2, and Patent ZL200820120164.8 all adopts the timing switch of the garden sprinkler controlled by both sides o...

AI Technical Summary

Problems solved by technology

Imagine that if the hygrosistor is exposed to the air to moisten the fog, or if someone breathes nearby, the hygrosistor will command watering, and if the land has just been watered and the soil is very wet and does not need water, then There is a possibility of misoperation

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