997 results about "Water sampling" patented technology

A method of monitoring the quality of water at a ground water sampling site without human intervention. Water at the sampling site is purged until at least one preselected purge criterion is satisfied. At least one water quality attribute is automatically measured at the sampling site, and the quality of water at the site is determined based on the measured water quality attribute. The method is performed by a system including a control unit which, in accordance with a computer program, controls the taking of water quality attribute measurements at the sampling site. The control unit may be equipped with a port for downloading data to a technician on site and with a transceiver for communicating data to a base station via a communications network.

The invention provides an underwater robot platform. The underwater robot platform comprises at least one underwater robot, a monitor terminal, a buoy communication system and a water sampling device. The monitor terminal is used for sending motion and task instructions to all underwater robots; the buoy communication system is connected with the underwater robots through CAN cables to receive the motion and task instructions through the CAN cables, and the buoy communication system moves under dragging of the underwater robots and obtains positioning information and communication information of the underwater robots; the water sampling device communicates with the underwater robots through standardized interfaces and is used for collecting and recording water sample information; the underwater robots are used for completing corresponding motion and tasks according to the received motion and task instructions. The propulsion mode combining CPG bionic propulsion and gliding propulsion is adopted, the multiple underwater robots are cooperatively controlled through a wireless sensor network technology, and the underwater robot platform is high in real-time performance, movability and efficiency and has the long-time cruising ability.

The invention provides an experimental apparatus for simulation research on water quality and quantity of biotical retained elements under an artificial rainfall condition. The experimental apparatus comprises a rainwater storage tank, a water pump, an aqueduct, a supporting frame, a water quantity regulation tank, a valve, a water outlet pipe, a spray head, rainfall holes, a porous water distribution plate, an experimental soil bin, a small sampling perforated pipe and a large sampling perforated pipe, wherein the lower outlet of the rainwater storage tank is connected with a water inlet of the water pump; a water outlet of the water pump is communicated with the water quantity regulation tank arranged on the supporting frame through the aqueduct; the outlet of the water quantity regulation tank is provided with the valve and connected with the spray head through the water outlet pipe; the porous water distribution plate which is provided with a plurality of rainfall holes is arranged under the spray head and above the experimental soil bin; and the small sampling perforated pipe is positioned on the central part of the experimental soil bin, while the large sampling perforated pipe is positioned on the lower part of the experimental soil bin. The experimental apparatus for the water quality and quantity simulation research on the biotical retained elements under the artificial rainfall condition has a simple structure, can regulate rainfall intensity and uniformity, and realize water sampling of soil in different time and different structural space, and has an application prospect in the field of environment engineering and ecological engineering.

The invention discloses a multilayer water sample continuous and automatic acquisition type deepwater sampling device. The deepwater sampling device comprises a barrel which comprises a round top cover, a barrel body and a conical counterweight, water sampling bottles are fixedly arranged outside the barrel body, the barrel body is vertically partitioned into 2-3 inner chambers by partitions in the middle of the barrel body, and a single-chip microcomputer controller and a lithium battery are arranged in the inner chambers respectively. A pressure sensor used for measuring water pressure is fixedly arranged on the outer side wall of the barrel body, a lifting ring and a Bluetooth communication wire are fixedly arranged at the upper end of the round top cover, the lifting ring is connected with a motor lifting device arranged on the water surface, and the Bluetooth communication wire is in wireless communication with a computer on the water surface. Upper and lower end faces of each automatic sampling bottle are provided with water inlets respectively, electromagnetic valves are fixedly arranged at the water inlets respectively, the electromagnetic valves and the pressure sensor are respectively connected with the single-chip microcomputer controller, and the lithium battery is respectively connected with the electromagnetic valves and the pressure sensor to supply power to the same. The multilayer water sample continuous and automatic acquisition type deepwater sampling device has advantages that automatic sampling at six positions different in water depth, and simplicity in operation, high efficiency and continuous sampling of multilayer water samples are realized.

The invention discloses a water sampler capable of synchronously collecting multilayer water samples at fixed depth. The water sampler is mainly composed of a handle, a reel, a load bearing band, a lifting rope, floating bodies, water sampling units and a carrying idler, wherein scales and fixing holes are formed in the load bearing band, the floating bodies and the water sampling units are fixed on the load bearing band, and the positions of the floating body and the water sampling unit and the number of the water sampling unit can be determined according to actual demand. The plurality of water sampling units are fixed on the load bearing band of the device to collect water samples on the same vertical section in different depths, the obtained water samples are accurate, and the operation is simple. The assemblies of the device are detachable and are simple to assemble and convenient to carry, thereby being suitable for quick collection of field water samples.

The invention provides a multi-point water sample automatic acquisition device carried by an unmanned ship. The multi-point water sample automatic acquisition device comprises a water sampling control module, a water inflow device, a water storage device and a transmission device. The water inflow device comprises a water suction pump, a water suction pipe for water suction and a connecting pipe for connecting the water suction pump with the water storage device. The water storage device comprises a tray, a supporting rod, a water sampling bottle frame, water sampling bottles and a cover plate. The water sampling bottle frame is fixed above the tray through the supporting rod, and the transmission device can drive the water sampling bottle frame to rotate around the supporting rod. A circle of water sampling bottle clamping grooves is formed in the water sampling bottle frame, and one water sampling bottle is clamped and fixed into each water sampling bottle clamping groove. The cover plate capable of covering the water sampling bottle frame is installed above the water sampling bottle frame, a water pipe joint communicated with the connecting pipe is arranged on the cover plate, and the water sampling control module is used for controlling the rotating angle of the water sampling bottle frame and the starting and stopping time of the water suction pump. Multi-point water sample acquisition can be achieved, manual work can be replaced, precision control can be achieved during multi-point acquisition, efficiency is high, and installation and use are both convenient.

The invention discloses a novel water sample-sediment joint sampling device, comprising a connection tube; a sampling control handle is fixed at the upper end of the connection tube, the lower end of the connection tube is movably connected with a water sampling tube, the water sampling tube, a transition tube and a sediment sampling tube are connected in sequence, the inside of the water sampling tube is divided into a plurality of independent closed compartments by partitions, the upper and lower ends of one side of each closed compartment are provided with a water inlet and a water outlet respectively, an area corresponding to each water inlet is provided with a balloon that is communicated with an external gas source through an inflating tube, the lateral side of the upper end of the sediment sampling tube is provided with a water outlet, a cut-off device is movably connected to the bottom of the sediment-sampling tube, the upper and lower ends of the transition tube are provided with water outlets respectively, a sealing operation rod penetrates the connection tube and the water sampling tube, the upper end of the sealing operation rod penetrates the sampling control handle and fixedly connects with the sealing control handle, the middle of the sealing operation rod penetrates a retaining plate in the water sampling tube, and the lower end of the sealing operation rod is movably connected with a seal piston in the transition tube. The invention also discloses a sampling method using the sampling device.

The invention discloses a one-time layering sampling a plurality of unmixed groundwater samples device and a method. The one-time layering sampling the plurality of unmixed groundwater samples device comprises a cable, a counterweight, a control module and a water sampling device. The water sampling device comprises a stepping motor, an inner layer sleeve and an outer layer sleeve. The control module is connected with the stepping motor through the cable. The outer layer sleeve is fixedly connected with a stator of the stepping motor. The inner layer sleeve is fixedly connected with a rotor of the stepping motor. The outer layer sleeve is arranged outside the inner layer sleeve in a sleeved mode. The inner layer sleeve can rotate relative to the outer layer sleeve under the effect of the rotor of the stepping motor. The counterweight is fixed on the bottom portion of the outer layer sleeve. The one-time layering sampling the plurality of unmixed groundwater samples device is simple in structure, novel in style and strong in sealing performance. The one-time layering sampling the plurality of unmixed groundwater samples device can sample a plurality of water samples in a layering mode in one time, and the sampled water samples are unmixed water samples.

The invention discloses a wireless remote-control automatic sampling monitoring ship which comprises a ship body, an execution subsystem arranged on the ship body and a master control subsystem arranged on a base station and in wireless communication with the execution subsystem, wherein the master control subsystem comprises a computer equipped with an MAPINFO map system, a first single chip and a GPRS (General Packet Radio Service) module; the execution subsystem comprises a second single chip of the ship body, a water sampling module, a navigation module, an ultrasonic ranging module, a driving module, a camera module and a GPRS module; and the camera module comprises an overwater camera and an underwater camera. The wireless remote-control automatic sampling monitoring ship automatically finishes water sampling for relevant sewage and wastewater discharge points as well as video monitoring work.

The invention relates to a deep water type water quality measurement multi-point sampler comprising a power supply, a display instrument, a control switch, an upper-and-lower linkage valve, a liquid level transducer, and a sampler main body consisting of four sampling bottles; the sampling bottles are fixed by fixing rings, and then fixedly connected to the steel cable part at the bottom end of the cable connecting wire; the liquid level transducer at the bottom end of the cable conductor converts a water body signal in the sampling bottles into an electrical signal which is transferred to the display instrument for display through the integrated control switch; and the upper-and-lower linkage valve is merged into the cable conductor through a linkage valve control wire, and then connected to the control switch. The arrangement of the upper-and-lower linkage valve overcomes the technical difficulty in gas discharging in the prior deep water sampling; due to the modularized composition, the sampler is convenient and quick to assemble; the quantificational water sampling can be carried out at definite depth; the problem that the prior single-port water collection causes damage to the flow field is solved; and meanwhile, the valve can be switched on or off instantaneously, and the leak prevention effect is good. Therefore, the efficiency and the accuracy of deep water sampling are improved. With good practicability, the invention is easy to popularize and apply.

The invention discloses an autonomous navigation type surface water quality sampling and real-time monitoring water level robot. The autonomous navigation type surface water quality sampling and real-time monitoring water level robot comprises a ship body, a power system, a master control system, a navigation system, a communication system, a sampling monitoring system and a propelling system, wherein the power system, the master control system, the navigation system, the communication system, the sampling monitoring system and the propelling system are arranged on the ship body; the navigation system comprises an electronic compass, a GPS (global positioning system), an ultrasonic obstacle-avoiding sensor and a camera, and the navigation system is connected with the master control system; and the sampling monitoring system comprises a water sampling swing rod which is arranged on a steering engine, the water sampling swing rod controls the water sampling depth and is connected with one end of a water sampling pipeline, the other end of the water sampling pipeline is shunted into all sampling bottles from a peristaltic pump to a pinch valve, all sampling bottles are arranged in a heat preservation box, a water quality sensor connected with the master control system is arranged on the water sampling swing rod, and the propulsion mode of the propelling system adopts an externally-mounted double-direct-current motor and a screw propeller. The autonomous navigation type surface water quality sampling and real-time monitoring water level robot has small volume and light weight, can be carried conveniently, can be operated simply, is free of pollution, and can realize sampling monitoring to an area where a person cannot reach.

The invention relates to a water sampling device, in particular to a different-depth water sampling device for treating industrial wastewater, and aims at adjusting the sampling depth according to different requirement and synchronously sampling from different places. For solving technical problems, the invention provides the different-depth water sampling device for treating industrial wastewater, and the device comprises a mounting rack and the like, wherein sampling mechanisms are uniformly arranged on the mounting rack; adjusting mechanisms which are matched with the sampling mechanisms are arranged on the mounting rack. According to the device, the sampling mechanisms are arranged and used for synchronously sampling water through a plurality of sampling pipes, which facilitates the work of workers; the adjusting mechanisms are arranged and used for conveniently adjusting the height of the sampling pipes, so that the sewage under different depth in the same place can be synchronously sampled.

The invention relates to a field attendance method based on GPS (global positioning system) positioning. The field attendance method based on GPS positioning comprises the following steps of uploading scanning information of an inspection point identification tag of handheld equipment and current position information to a server side through a handheld device when an inspection worker passes through an inspection point in an inspection process; comparing the position information to preset position information by the server side; judging whether the position information is qualified position information or not; and determining the qualified position information as qualified attendance. In addition, when an inspection field comprises a plurality of inspection points, the inspection worker correspondingly scans identification tags when passing through the inspection points, and judging and determining processes are implemented. By the field attendance method based on GPS positioning, field attendance is managed effectively on the basis of accuracy of the position information and field attendance identifying devices, the inspection worker can arrive at a device field to carry out inspection or a water sampling worker can arrive at a water sample field to extract samples, and management level of field attendance is improved.

The invention belongs to the technical field of ecological engineering, particularly relating to a multifunctional lake ecology restoration simulation device and use method as well as application. The device comprises a multifunctional ecology restoration simulation test cylinder, a light source control system and a water temperature control system, wherein the light source control system and the water temperature control system are positioned outside the top of the test cylinder; the outer surface of a reaction cylinder is provided with a top cover, a culture liquid inlet and a circulating water outlet; the middle of the reaction cylinder is provided with a water sampling port, and the lower part of the reaction cylinder is provided with the circulating water inlet, a substrate sludge pore water sampling port and a bottom plug; and the test cylinder internally comprises a nitrogen cycle bacteria carrier, submerged plants and settings. By using the method and device, the comprehensive regulation and control as well as optimization of parameters such as settings, submerged plants, denitrification microorganism, water temperature, light and water quality can be carried out, lake and inflowing riverway nutrient salt can be simulated and controlled, and a lake ecology restoration mechanism can be studied. The device disclosed by the invention is simple in structure, is strong in mobility, is diversified in restoration simulation function, is simple in manufacturing, is low in cost and is easy to operate, and can be used indoor and outdoor.

The invention discloses a trigger floating type water sampling device, and aims to provide a water sampling device capable of conveniently and accurately collecting a water sample in a specific distance above the seafloor. The device comprises a trigger device, a sedimentation counterweight, a trigger counterweight and a plurality of water sample collectors, wherein the trigger device comprises a trigger cylinder body which is vertically arranged, an upper piston body and a lower piston body which are arranged in the trigger cylinder body in a sliding manner, a first connecting rod which is connected with the upper and lower piston bodies, a second connecting rod arranged in the middle of the lower end face of the lower piston body, and a buoyancy device which is arranged on the outer face of the trigger cylinder body.

The invention discloses a drone water sampling device for water quality monitoring. The device comprises a water intake pipe, a transfer pump, a water filling pipe and several sample storage devices. The several sample storage devices are uniformly distributed on a ring support, the inner side of which is provided with a tooth ring. The tooth ring is engaged with driving wheel, which is connected with a driving motor in a transmission way. The water intake pipe is communicated with the water filling pipe through the transfer pump. A water outlet of the water filling pipe is directed at one of the sample storage devices. The driving motor drives the ring support to rotate through the driving wheel. When the ring support rotates a certain angle, the water outlet of the water filling pipe is directed at another sample storage device. The transfer pump and the driving motor are both fixed on a pedestal, which is connected to a drone. By using the drone as a platform, acquisition of a water area's water samples to be observed can be rapidly completed, water samples of multiple sampling points can be acquired by one-time lift-off, and the platform is not directly contacted with the water surface so as to guarantee cleanness of the platform.

The invention discloses a water sampler which is simple, portable and easy to operate. Users can collect water samples in different locations and at different depths by the bank. Based on environmental science research and the actual situation of work practice, the water sampler not only solves the problem of manual sampling, but also improves the work efficiency and safety factor of outdoor water sampling activity, thus saving labor power and material resources and bringing convenience to science researchers and environment workers. The floating automatic water sampler consists of four parts, namely, a structure system, a power control system, a water sampling system and an automatic control system. The water sampler, adopting the structure, can receive instructions of operators ashore and arrive at an appointed location to collect water samples, and can collect the water samples at different depths in different locations according to a preset sampling depth. The water samples collected at different depths and in different locations can be automatically and separately stored and return to a departure site. The collected water sample amount can meet the general requirements of water quality monitoring.

The invention discloses an intelligent waste water sampling control system which comprises a flowmeter, an intelligent waste water sampling controller, a waste water sample storage device and a pollutant concentration on-line tester, wherein, the flowmeter is used for measuring the flow of discharged waste water and transmitting flow signals to the intelligent waste water sampling controller, the intelligent waste water sampling controller is used for respectively controlling the working of the waste water sample storage device and the pollutant concentration on-line tester, and the waste water sample storage device is respectively connected with a waste water discharging pipeline and the pollutant concentration on-line tester. The invention also discloses a sampling control method of the intelligent waste water sampling control system. According to the invention, scientific and intelligent sampling of waste water at a discharging outlet can be realized; the total amount of discharged pollutants can be measured more accurately; only water samples that exceed the standard are stored, and information is preserved by using RFID, thereby reducing cost for storage and making it substantially convenient for environmental protection supervision authorities to carry out scientific supervision and law enforcement according to environment laws and regulations.

The invention relates to an unmanned aerial vehicle loaded automatic water sampling device. The unmanned aerial vehicle loaded automatic water sampling device consists of a sampling device frame, a sample collecting and storage box, a water pump, a water quality detector and a system controller, wherein a camera capable of rotating circularly is arranged on the bottom of the sampling device frame;the sample collecting and storing box consists of a stepping motor a, a reel, a reeling rope, a sample storing bottle, a deionized water box, a sampling bottle and a pressure sensor; the stepping motor a controls the reel to rotate, and drags the reeling rope to control the falling height of the sampling bottle; after the sampling bottle enters water, the sampling depth is fed back by the pressure sensor; during layered sampling, the sampling bottle is placed in water at first until water depth displayed by the pressure sensor is not changed, the water of the lower layer is sampled while thewater depth is recorded, and the sampling depths of the upper layer and the middle layer are determined according to the water depth, and samples of the corresponding layers are collected. Compared with the prior art, the unmanned aerial vehicle loaded automatic water sampling device has the advantages that samples can be collected in a layered manner at multiple points in a large range.

The invention discloses a monitoring ship which comprises a ship body, a quick detecting instrument, a water sampling instrument, a microprocessor, a reagent analyzer, a data collecting instrument, a wireless transmission module and a power supply module. The monitoring ship can obtain water quality and hydrologic detection data of water body through the quick detecting instrument and the reagent analyzer and sends the detection data outward through the wireless transmission module, can enable workers not to personally detect the water quality of a water body in a certain water area and improves the water quality and hydrologic detection efficiency. In addition, the power supply module provides power for the monitoring ship, so that the monitoring ship can substitute for the workers to perform long-term long-distance water quality and hydrologic detection work.

The simultaneous taking of water samples from the bottom of a column of water in the bed water above a water bed is of use for scientific investigation of the transition zone between the water bed and the water column lying above the same, for the determination of parameter gradients. Conventional bed water sampling devices with an arrangement of horizontally oriented sample containers at different water levels do not generally permit a non-invasive sampling. According to the invention, said ground water sampling device thus comprises central retainer rod (2) for the sample containers (3), which permanently rotate freely and easily in the bottom currents by means of a flow vane (6). All sample containers (3) comprise sealing devices (16) on both front surfaces (14, 15) and are flushed through with bed water originating from the corresponding level before the sampling. All sealing devices (16) are essentially instantaneously by means of a time-controlled actuator (10) which is mechanically activated by pushing up a trigger plate (8) after the adequately long placement of the ground water sampling device (1). High-resolution profiles of various parameters can thus be simply, precisely and reproducibly determined even in water of great depth, by means of said simple and robust bed water sampling device (1), which can be lowered by means of a simple steel cable (7).

In monitoring a stratum disposal field for wastes, running tubes installed in the vicinity of a gallery or disposal holes, in a nearby rock bed, or within a gallery support or buffer members in the disposal holes have installed therein a movable monitoring device provided with various sensors, a water sampling device and the like. The monitoring device may be movable or fixed in a predetermined position, for measurement of the temperature, displacement, strain, stress and underground water in connection with the rock bed, the gallery support or the disposal space buffer members. Measurement of the clearances in the rock bed, the gallery support back or the disposal space buffer members is monitored. Also, sampling of underground water in the rock bed, the gallery support or the buffer members is effected, thus reducing the number of sensors, drilled holes, communication cables to facilitate the exchange or maintenance of the sensors, communication cables and the like. Further, the data measured by the monitoring device embedded in the buffer member or the like is transmitted by radio to a movable data collecting device in the running tube, or the data measured by the monitoring device is transmitted by radio to a management device disposed on the ground or somewhere else via a relay.

The invention provides a sampling device for a lake and reservoir water layer sample relating to a sampling device for a water sample; the invention includes a sampling bottle and a draught rope and also includes a fixing frame for supporting the sampling bottle, a supporter connecting the fixing frame and a sealing device which is arranged on the supporter and can move up and down along the supporter, used for sealing the sampling bottle. The draught rope is fixedly connected with the supporter and the tail end of the supporter is provided with a balance weight. The invention has the advantages of compact structure, easy carry, and good sampling effect, can ensure no remarkable dissipation losses of dissolved gas caused when in the sampling process, is suitable for the work of filed sampling and is adaptable to various field sampling conditions.

The present invention relates to a multi-functional submarine towing cable, which is characterized in: the towing cable comprises from center to exterior as follows: water transmission pipe, cables for power supply and data communication, waterproof bushing, and reinforcing rope. With consideration of leak tightness of the submarine towing cable and protection for the internal structure, an outer waterproof bushing is added outside of the reinforcing rope. A cable fixing glue layer is added outside of the cable. The water transmission pipe is made of Nylon 11 material, and the reinforcing rope is braided with Kevlar material. The present invention integrates water transmission, power transmission, and towing function to produce a towing cable that is different to steel wire cables or conventional armored cables. That is to say, the present invention provides a shipboard expendable continuous sampling system, particularly a towing cable that can be used to take water samples in real time, especially a towing cable that is loaded on a towing platform for a continuous water sampling system, with a water transmission pipe and conduction and signal transmission capability, and high tensile strength, designed to accomplish shipboard expendable continuous water sampling tasks at different predefined depths or implement shipboard expendable, quick, and online water quality monitoring.

The invention provides a sampling system of unattended shipborne multichannel film filtering water samples, relates to a sampling device of water samples and provides a sampling system of unattended shipborne multichannel film filtering water samples capable of automatically taking water, washing, filtering and water sampling. The sampling system is provided with a constant flow pump, a multi-channel switch valve, a shunt valve, a filtering device, a three-way valve, a vacuum bottle, a washing bottle, a sampling bottle, a multi-channel negative pressure control valve, a vacuum system, a control system and a computer. An injection port of the multi-channel switch valve is connected with the constant flow pump; the shunt valve is connected with a discharge port of the multi-channel switch valve; the filtering device is connected with the discharge port of the multi-channel switch valve; the three-way valve is connected with the filtering device, the washing bottle and a sampling bottle; the vacuum bottle is connected with the vacuum system; air inlets of the multi-channel negative pressure control valve are connected with the vacuum bottle, wherein one of the air inlets is connected with the atmosphere and an air outlet is connected with the vacuum system; and the control system is connected with the computer. The sampling system has the advantages of simultaneous implementation of sampling and filtering of water samples, short filtering period, high degree of automation and stable performance and the like.

The invention discloses a hand-operated stratified fixed-depth water sampler. The water sampler comprises a power unit which consists of a hand-operated clean water pump and a water sampling tube, a depth fixing part which consists of a T-shaped helical telescope tube and a round balancer, and an disturbance prevention part which consists of a mesh disturbance prevention cylinder. An operator fixes the hand-operated clean water pump on a ship, fixes the water sampling tube on the T-shaped helical telescopic tube by a pipe clamp according to the required sampling depth, holds the upper end of the T-shaped helical telescopic tube, and slowly and vertically puts the T-shaped helical telescopic tube into a water body until the round balancer contacts the bottom of the water body, continuously presses a crank handle, discards the initial water samples, collects the needed water samples and completes the sampling action. The water sampler can easily and greatly collect stratified water samples at different depths by hand operation; and the water sampler has simple structure, convenient operation and labour saving in use, and can effectively reduce the influence of bed mud disturbance on bottom water sampling.

The invention relates to a water sampling device for farming water quality monitoring. The water sampling device comprises a peristaltic pump (8) and a water quality sensor (9), wherein the front end of the peristaltic pump is connected with a hose (2), the rear end of the peristaltic pump is connected with the water quality sensor (9), the front end of the hose can extends to the inside of a to-be-monitored water area, the peristaltic pump (8) is provided with a driver, a corresponding control module is arranged in an external computer, and the flow rate and velocity of the peristaltic pump (8) are controlled by using an external computer (12) through the control module, so that the peristaltic pump (8) meets the requirements of the water quality sensor (9) on flow velocity and flow rate. By using the water sampling device for farming water quality monitoring disclosed by the invention, the sampling flow rate and the sampling flow velocity can be automatically controlled, and the original water in the water quality sensor and a pump body can be accurately and rapidly discharged so as to meet the requirements of the water quality sensor on flow rate and flow velocity, thereby greatly improving the accuracy and rapidness of monitoring.

The invention discloses a water discharge pipeline water quality automatic sampling. The water discharge pipeline water quality automatic sampling comprises a water quality monitoring center and a plurality of water sampling nodes, wherein the water quality monitoring center comprises a total controller as well as a first data processing unit and a local server which are connected with the total controller; each water quality sampling node comprises a sampling control box, a background controller and a second data processing unit; the sampling control box comprises a multi-mode communication adaptor, a power supply, a GPS positioner and a single chip microcomputer; a detection unit is provided; and the detection unit comprises an eddy-current sensor, a water sample collecting module and awater quality monitoring module. The water quality sampling nodes and the sampling control boxes are distributed by dividing areas, and information is subjected to block acquisition and block processing, so that sampling can be conducted rapidly, the sampled information is not in disorder, accurate positioning can be conducted when a component is maintained and changed, the water samples can be collected by four modes of collecting for many times and mixing the samples, sampling at fixed time, performing trigger sampling and performing network sampling, the collection modes are diversified, and the practicability is higher.

The invention relates to a fertilization and water supply control system and a fertilization and water supply method, and in particular relates to an automatic fertilization and water supply control system and an automatic fertilization and water supply control method. The technical scheme is that the automatic fertilization water supply control system comprises a CPU module part, an I / O module part, a soil sensor sampling part, a major loop fertilizer water sampling part, a fertilizer distributor part, a drip irrigation part, a water way part, a host computer monitoring part, a display part and a keyboard part, wherein the CPU module part is connected with the soil sensor sampling part, the major loop fertilizer water sampling part, the fertilizer distributor part, the drip irrigation part and the water way part by virtue of the I / O module part, the host computer monitoring part is connected with the CPU module part by virtue of an electrical isolation plate or is used for performing remote monitoring on the CPU module part by virtue of internet, and the display part and the keyboard part are connected with the CPU module part. The system provided by the invention can be used for automatically performing drip irrigation and fertilization on crops, and can be used for saving water, electricity and labor cost.

The invention discloses self-triggering putting type water sampling equipment based on an unmanned aerial vehicle, and aims at providing water sampling equipment which is low in energy consumption, high in efficiency and capable of performing repeated fixed-point water sampling on different water areas. The water sampling equipment comprises a water sampling equipment body arranged on the unmanned aerial vehicle, a lifting device used for lifting the water sampling equipment body, and a distance detecting device arranged on the unmanned aerial vehicle and used for detecting the distance between the unmanned aerial vehicle and the water surface. The water sampling equipment body comprises a rack, an automatic water sampling device arranged on the rack, and a filtering net cage arranged on the rack. The rack comprises vertical guide rods, a floating frame and buoyancy devices arranged on the floating frame. The floating frame is provided with floating frame guide sleeves, the floating frame guide sleeves are arranged on the vertical guide rods in a sliding and sleeving mode, and fastening bolts capable of fixing the floating frame guide sleeves to the vertical guide rods are arranged on the floating frame guide sleeves. The floating frame, the floating frame guide sleeves and the buoyancy devices are located above the filtering net cage, and the automatic water sampling device is located in the filtering net cage.