| China is a large agricultural irrigation country,but due to the shortage of water resources,the contradiction between supply and demand of water resources is increasingly prominent.The degree of automation in large and medium irrigation areas is lower than that of developed countries,which makes the research of automatic monitoring system for water-saving irrigation in irrigation area become one of the hot spots in the research of intelligent agriculture.There are two ways of automatic water-saving irrigation at the present stage: one is to transmit the information collected by soil moisture,air humidity and light sensors to the software platform on the computer,and the irrigation decision model is used to determine the irrigation time and the amount of irrigation to achieve accurate irrigation;the other is to establish a periodic irrigation scheme.The time irrigation is carried out.These two methods can not solve the problem of low power consumption and long distance transmission in the irrigation area data acquisition equipment,and the irrigation decision model or irrigation scheme are not combined with water price.It is difficult to realize water-saving irrigation by economic lever,which causes the farmers’ water saving consciousness and the water resources to be wasted.In view of the above problems,the design of LoRa wireless transmission is adopted to solve the problem that both low power consumption and longdistance transmission in the irrigation area data acquisition equipment can not be taken into account.Water rights distribution is carried out on the water supply and demand balance analysis in the early stage;the water quantity is monitored on the node of the set of water information collection terminal in the irrigation area;the irrigation area information center is used.The related data information is stored,inquired and counted to realize automatic monitoring.The water price is measured by the water price and the water charge is equipped with a swipe card to realize the efficient utilization of water resources in the irrigation area.Through the investigation and analysis of the total agricultural production cost,the total agricultural output value,the agricultural net income and the total family income of the typical farmers and the 20 typical households of the well irrigation of the typical farmers in the irrigation area,it is found that the irrigation water expenditure in the typical farmers in the project area is the typical farmers in the project area.The proportion of the cost is basically in a reasonable range,indicating that the implementation of the water price is within the acceptable range of the typical farmers after the completion of the project construction,and the implementation of the water price is feasible.Based on the LoRa agricultural water price comprehensive reform system,the problem that the low power consumption and long distance transmission of the data acquisition equipment in the irrigation area can not be taken into account is solved.Because the LoRa is suitable for the areas with large number,insufficient signal coverage,extensive layout and bad environment,the price is relatively low when the measurement points are relatively large;the water price of the irrigation area is comprehensive.It is of great significance for the construction of water saving society,the contradiction of water supply and demand,the effective utilization of water resources and the realization of the optimal allocation of water resources. |