67 results about "Precision irrigation" patented technology

The invention provides a large-area farmland crop water status monitoring method based on unmanned aerial vehicle infrared thermal image acquisition. The method comprises the following steps: 1)arranging auxiliary devices in the field, that is, field air temperature sensors and a ground full-evaporation reference surface; 2) carrying out large-area infrared image acquisition on farmland corps through an infrared thermal imaging system fixed to an unmanned aerial vehicle through a pan-tilt, and synchronously triggering a GPS module to obtain positioning information of the corresponding images; and 3) receiving by a ground data processing system the infrared images and the positioning information, carrying out image registering, splicing and segmentation on the images, extracting spatial distribution of canopy temperature and ground full-evaporation reference surface temperature, calculating the temperature of leaves when the stomas of the crops are fully closed, and finally, calculating water deficit index of the crops and carrying out highlighted display and early warning on the areas, where the water deficit index of the crops is higher than a critical value. Besides, the invention also provides a system suitable for the method. The method and system are suitable for large-area farmland crop water status monitoring, facilitate to realize agriculture precision irrigation and improve agricultural modernization level.

The invention relates to an automatic intelligent paddy field irrigation system, and further relates to a method for irrigating fields by the aid of the same. The automatic intelligent paddy field irrigation system is characterized by comprising a lift pump station, irrigation ditches, automatic field irrigation control devices and paddy field soil moisture monitoring devices; paddy field soil moisture controllers can control actions of a lift pump on-off controller according to signals outputted by liquid level meters, water can be supplied to the irrigation ditches by lift pumps, and irrigation water in the irrigation ditches can be automatically filled into the fields or can automatically stop being filled into the fields by the aid of the automatic field irrigation control devices according to water levels of the fields. The automatic intelligent paddy field irrigation system and the method have the advantages that the automatic intelligent paddy field irrigation system is simple in structure and convenient to maintain; the problem of difficulty in popularizing a novel shallow-wet paddy rice irrigation planting technology can be solved, and the automatic intelligent paddy field irrigation system and the method have an important practical significance on precision irrigation, water conservation and efficacy enhancement of irrigation and water conservation at the current stage in China.

A sprinkler for irrigating an area having a shape with an irrigating liquid includes a base; an inlet disposed on the base for receiving the irrigating liquid from a source; and a nozzle having a central axis, the nozzle being rotatably coupled to the base about the central axis and operatively coupled with the inlet to receive the irrigating liquid, the nozzle being adapted to spray the irrigating liquid out onto the area. The sprinkler also includes an adjustable valve operatively coupled between the inlet and the nozzle for controlling a flow rate of the irrigating liquid through the nozzle; a plate being coupled to and rotatable with the nozzle and having a plate axis which is co-axial with the central axis, the plate including a cam surface having a contour which corresponds with the shape of the area; and a lever element having a cam engaging element which engages the cam surface, the lever element being operatively coupled to the valve such that the contour of the cam surface causes the valve to control the flow rate of the irrigating liquid.

The invention discloses a dry farming direct seeding planting method of rice, which comprises the steps of preparing sprinkling irrigation equipment: the lifting micro-sprinkling irrigation equipment is buried under to-be-planted ground for 30-40cm; processing a field: straws of last stubbles of crops on the to be planted ground are cut into sections, the lengths of the straw sections are 2-20cm, the straw sections are broadcast in soil, a base fertilizer is applied on the soil, and the soil is subjected to ploughing and rotary tillage; preparing rice seeds and seeding: the selected rice seeds are sown on the processed soil uniformly, and then the soil is compacted; and performing sprinkling irrigation: the lifting micro-sprinkling irrigation equipment buried under the ground is used for irrigating the soil sown with the rice seeds, and the water content of the surface of the soil is 40-60%. Therefore, the precision irrigation to the crops is realized; excess water accumulation in the rice field is avoided; and the utilization ratio of water resources is increased. In addition, the straws are turned into organic fertilizers with the passage of time; straw turnover is realized indeed; the method contributes to improving the yield and quality of grains; and environmental pollution due to straw burning is avoided.

The invention provides an automatic rainwater collection and on-site utilization system of an urban highway. The automatic rainwater collection and on-site utilization system comprises a rainwater collection system, an automatic control system and an automatic irrigation system, wherein the rainwater collection system comprises a rainwater grate, a settling pool, a rainwater collection pipeline and a water collection tank; the rainwater grate is in a poriform water through and trash holding structure; a rainwater outlet is formed on one side of the settling pool; the settling pool is connected with a siphon; the rainwater collection pipeline is connected with the settling pool and the water collection tank; the automatic control system comprises a humidity sensor, a water level sensor and a control device; the automatic irrigation system comprises a water pump, a suction pipe and a drip irrigation pipe; and the water pump receives a signal from the control device to irrigate green belt plants via the drip irrigation pipe. The system has the benefits that the interception of many pollutants in rainwater can be achieved by the poriform rainwater grate and the settling pool; a rainwater treatment procedure is reduced; the construction cost of the system is lowered; precision irrigation can be achieved by drip irrigation; the water is greatly saved; and the waste of manpower, material and financial resources of the traditional irrigation is avoided.

The invention relates to the technical field of agricultural irrigation equipment, in particular to a precision irrigation system which comprises a temperature sensor, a wind speed sensor, a soil humidity sensor, a central processing unit, a water pump and a flow meter. The temperature sensor is used for detecting the air temperatures of a farmland; the wind speed sensor is used for detecting thewind speeds of the farmland; the soil humidity sensor is used for detecting the water content of soil in the farmland; the central processing unit is connected with the temperature sensor, the wind speed sensor and the soil humidity sensor, the water volumes required for irrigating the farmland can be determined by the central processing unit by means of analysis, and instructions can be transmitted by the central processing unit; the water pump is connected with the central processing unit and can be switched off according to the instructions of the central processing unit; the flow meter isconnected with the central processing unit and is used for measuring irrigation water consumption and transmitting signals to the central processing unit. The precision irrigation system has the advantage that the problem of low automation degrees of existing irrigation systems can be solved by the aid of the precision irrigation system.

The present invention provides systems and methods in the field of precision agriculture, particularly to systems and methods for precision irrigation that is based, among other factors, upon actual and forecasted water needs of a crop.

The invention provides a rice precision irrigation measurement and control system based on a wireless sensor network. The system comprises a farmland water level monitoring device, a base station device, a data server, a water pump controller, a water pump and a plurality of electromagnetic valves connected with the water pump, wherein the farmland water level monitoring device comprises a plurality of sensor nodes, and farmland water level information collected by the sensor nodes is transmitted to the data server by the base station device; the data server stores a farmland water level threshold that is set according to the requirements of rice cultivation, and the data server determines whether the water level of each farmland is within the set farmland water level threshold range according to the received farmland water level information, if the water level of a field block is lower than the lower limit of the farmland water level threshold, the data server sends a water pump turn-on instruction to the water pump controller to turn on the water pump and simultaneously sends a turn-on instruction to the electromagnetic valve corresponding to the field block to achieve the precision control of the farmland water level. According to the scheme of the invention, the precision irrigation control of rice can be implemented by using a wireless sensor network technology.

The invention relates to the technical field of water and fertilizer irrigation control methods, and discloses a gray prediction fuzzy PID control method for water and fertilizer precision irrigation,which comprises the following steps: S1, combining a gray prediction control method, a fuzzy logic control method and a PID control method; s2, aiming at different irrigation modes and control objects, developing a serialized automatic irrigation control system; s3, adopting different irrigation modes for different plots and different crops through a serialized automatic irrigation control systemto realize precise control irrigation of water and fertilizer. The gray prediction fuzzy PID control method for water and fertilizer precision irrigation provided by the technical scheme of the invention can realize precision control of water and fertilizer irrigation.

The invention discloses construction and application of a control module for precision irrigation of farmland, and aims to solve the technical problems that irrigation control is not accurate enough,reliability is poor, and use and maintenance are inconvenient in the prior art. The invention provides a construction method for the control module for precision irrigation of the farmland and a precision irrigation method for the farmland, and the irrigation water amount is calculated according to the effective soil water capacity of the constructed model, real-time monitored soil moisture content and field evaporation rate. Based on the soil texture, the invention derives a transfer function of farmland soil effective water content (maximum allowable irrigation capacity), real-time monitoredsoil moisture and crop evapotranspiration (water consumption) data to perform real-time quantitative precision control irrigation; intelligent irrigation of the farmland can be realized; the irrigation water amount is accurate; the water-saving effect is obvious; water productivity is increased by 90% or more in comparison with conventional irrigation; and the crop yield is effectively increased,and can be increased by 20% or more per mu.

The invention relates to a planting method for improving sugar content of Fengshui pears and belongs to the field of plant cultivation. The method comprises the steps of pruning, deep application of fertilizers, leaf surface spraying of nutrient solution and time-division precision irrigation from time. By adopting the method provided by the invention, the convent of soluble solids is averagely increased by 6-8% in the content comparison ratio of the soluble solids in borne fruits, the sugar content is significantly increased, requirements of consumers are met, the fruit price is then increased, and the economic benefit of an orchard is obviously increased.

The invention discloses a mountain citrus orchard irrigation system and method. The system comprises a microprocessor module, a sensor module, a bi-stable pulse electromagnetic valve, a GPS satellitetime-base module, a ZigBee local area network, a gateway module, a GPRS module and a cloud server, wherein the sensor module, the bi-stable pulse electromagnetic valve and the GPS satellite time-basemodule are all electrically connected with the microprocessor module, the microprocessor is electrically connected with the ZigBee local area network, the ZigBee local area network is connected with the GPRS module through the gateway module, and the GPRS module is wirelessly connected with the cloud server through the GPRS; the sensor module is used for collecting environment parameters of a mountain citrus orchard; the GPS satellite time-base module is used for performing satellite time service on the irrigation system; the bi-stable pulse electromagnetic valve is used for controlling an irrigation switch; the microprocessor module is used for receiving the environment parameters of the sensor module. Precision irrigation and scientific management of the mountain citrus orchard can be achieved when a user obtains the growth environment condition of the mountain citrus orchard in real time.

The invention discloses a precision irrigation component based on the Internet of Things. The precision irrigation component comprises a power module and a signal acquisition module, a signal processing module, a signal output module and a wireless communication module which are connected sequentially, wherein the signal acquisition module comprises a soil moisture sensor, an air humidity sensor and a liquid flow sensor, and is used for detecting flow of liquid in a pipeline and humidity information of soil and the air, and the signal processing module is used for acquiring information of thesignal acquisition module and performing related calculation; the signal output module is responsible for performing electrical parallel conversion on processed results of the signal processing moduleand carrying out outward outputting so as to drive on-site execution devices, and the wireless communication module is used for transmitting data in the signal output module to a remote device. The irrigation assembly has the advantages of a simple structure, high degree of automation and convenient management and use.

A precision irrigation system using a Beidou short message communication function comprises a central processing module, a mobile monitoring module, and water application modules distributed at nodesin a planting area. The central processing module, the mobile monitoring module and the water application modules are communicated with one another through a Beidou RDSS service with a short message communication function and a positioning function. Each water application module comprises a fixed-type communication terminal, a water application unit and a node sensor group. The node sensor groupscollect node data of the planting area and transmit the node data to the fixed-type communication terminals. The fixed-type communication terminals transmit data to the central processing module through the Beidou RDSS service, receive control signals sent from the central processing module and transmit the control signals to the water application units. By the technical solution, in a vast and remote arid and sandy environment, precision irrigation can be achieved, and the stability of the irrigation system can be maintained. In addition, the invention further provides a corresponding precision irrigation method.

The invention discloses an irrigation system based on ZigBee network and D-S data fusion. The system comprises a central monitoring center, a ZigBee Sink node connected with the central monitoring center, multiple routing nodes communicating with the ZigBee Sink node through the ZigBee network and multiple sensors communicating with the routing nodes through terminal nodes; the routing nodes are connected with an electromagnetic valve; the central monitoring system is connected with a mobile phone and an expert system. According to the system, the soil moisture content of an irrigation area ismonitored by a self-adapting sensing network, data is in transmission with a double-layered network of a wireless sensor network based on ZigBee in a short range, the data is in transmission with a double-layered network of a wireless network based on GSM in a long range, agricultural automatic precision irrigation is achieved by adopting a control method of the combination of automatic control and a manual remote mode, and soil moisture content monitoring and remote controlling are achieved in real time.

The invention provides a method and device for acquiring the plant water deficit level. The method comprises the steps of 1, acquiring a grayscale image of a leaf; 2, and acquiring the plant water deficit level by using a hybrid deep learning network based on a rectangular image block of the grayscale image. According to the invention, the plant water deficit level is acquired quickly and accurately under the premise of not damaging the plant leaf, thus an appropriate precision irrigation measure can be adopted timely according to the plant water deficit level, and health growth of the plant is ensured. For crops, the yield of the crops and the quality of products can further be ensured according to the invention. In addition, real-time detection for the water deficit level can be performed on small-scale plants on site by applying the method to mobile terminals such as an intelligent mobile phone; and real-time detection for the water deficit level can also be performed on large-scale plants within video monitoring through applying the method to a computer.

The invention discloses a method for carrying out fertilizer application at a vegetative growth phase in accordance with the diameters of crop stalks. The method comprises the following steps: firstly, establishing a fertilizer application amount standard table according to the growth day number, the diameters of the stalks and fertilizer application amounts after crops in a standard plant sample region at the vegetative growth phase are planted and then measuring the diameters of the crop stalks at the vegetative growth phase in a region to be subjected to the fertilizer application; and calculating the diameters and the fertilizer application amounts of the crops with the same growth day number, which are planted in the fertilizer application amount standard table of the standard plant sample region, according to a certain rule, so as to obtain the intraday fertilizer application amount of the crops. The method disclosed by the invention can be used for a modern agriculture precision irrigation and fertilizer application field and is good for controlling the growth speed of the crop stalks, improving the utilization rate of fertilizers, reducing agricultural non-point source pollution and the dependency on a user knowledge level of crop fertilizer application management and reliving the labor intensity; the method can be used for guiding the long-period fertilizer application of greenhouse cultivated crops including asparagus lettuces which take the stalks as harvested products at the vegetative growth phase.

The invention discloses a method for carrying out fertilizer application at a vegetative growth phase in accordance with the change of a crop plant height. The method comprises the following steps: firstly, establishing a fertilizer application amount standard table according to the growth day number, the plant height, the plant height daily change and fertilizer application amounts after crops in a standard plant sample region at the vegetative growth phase are planted, and then measuring the crop height and the plant height daily change at the vegetative growth phase in a region to be subjected to the fertilizer application; and calculating the crop plant height, the projection area daily change value and the fertilizer application amounts of the crops with the same growth day number, which are planted in the fertilizer application amount standard table of the standard plant sample region, according to a certain rule, so as to obtain the intraday fertilizer application amount of the crops. The method disclosed by the invention can be used for a modern agriculture precision irrigation and fertilizer application field and is good for controlling the growth speed of the crops, improving the utilization rate of fertilizers, reducing agricultural non-point source pollution and the dependency on a user knowledge level of crop fertilizer application management and reliving the labor intensity; the method can be used for guiding the fertilizer application of greenhouse cultivated crops at the vegetative growth phase.

The invention discloses a precision irrigation pile which comprises an irrigation pile body, wherein a top connector is arranged on the top of the irrigation pile body; the top of the top connector isfixedly connected to a wind power device; a light collecting dish is arranged on the top of the wind power device; a light collecting lens is arranged on the top of the light collecting dish; a dustproof grid is arranged on the outer side of the wind power device; a bottom pile body tip is mounted at the bottom of the irrigation pile body; a tip-end slot is formed in the outer side of the bottompile body tip; a precision irrigation outer tube is arranged on the side of the irrigation pile body; and a water inlet cavity is formed in a lower portion inside the irrigation pile body. The invention relates to the technical field of precise irrigation. The precision irrigation pile solves the problem that plants cannot be precisely irrigated as a condition whether or not irrigation is needed according to an irrigation environment, detects and judges the current environment through multiple connecting ports and logical judging terminals; and while all environments are detected to need to irrigate, a central processor turns on an irrigation switch for precisely irrigating the plants.

The invention discloses a tea garden water and fertilizer precision irrigation system and a control method thereof, and relates to an irrigation system and a method thereof. A lower computer of the system comprises a lower computer wireless receiving and sending module, a high-speed camera, a soil water content sensor node, a water pump, a fertilizer pump and the like; an upper computer comprisesa single chip microcomputer module and an upper computer wireless receiving and sending module, and the upper computer wireless receiving and sending module and the lower computer wireless receiving and sending module are connected in two directions through wireless communication. The method comprises the following steps of: acquiring tea image data of a tea garden by utilizing the high-speed camera carried by an unmanned aerial vehicle, acquiring soil water content data of the tea garden in real time through the soil water content sensor nodes arranged between the tea gardens, transmitting the data to the upper computer for nutrient and water analysis, and carrying out precision fertilization and precision irrigation according to the analysis result. The tea garden water and fertilizer precise amount irrigation system can achieve the precision irrigation of water and fertilizer in the tea garden, can ensure the stable yield and quality of tea leaves, has the characteristics of fine and reliable management of the tea garden, low cost, simple operation, strong expansibility and the like, and has wide market prospect.