CN116337540B - A multi-parameter layered water sample collector and sampling method - Google Patents
A multi-parameter layered water sample collector and sampling methodInfo
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- CN116337540B CN116337540B CN202310417620.4A CN202310417620A CN116337540B CN 116337540 B CN116337540 B CN 116337540B CN 202310417620 A CN202310417620 A CN 202310417620A CN 116337540 B CN116337540 B CN 116337540B
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Abstract
本发明提供一种多参数分层采取水样采集器及采样方法，该水样采集器包括支架、采水罐，所述支架外周侧固定有多个采水罐，每个所述采水罐上设有单独控制的端盖启闭机构；所述支架顶端设有拉钩及与拉钩连接的拉绳，所述拉绳上设有用于指示采样完成状态的指示机构；所述支架底端还设有深水推进器；所述支架上端内部设有主控盒，所述主控盒内设有控制器及多个功能件，所述功能件用于检测水质并反映水样采集器的状态。本发明能实现200米深度的水样采集，能一次采集完成连续的水质参数采集并实现多个层深水样的采集，采集效率高、采集精准度高。
The present invention provides a multi-parameter stratified water sampling device and sampling method. The water sampling device includes a bracket and a water sampling tank. Multiple water sampling tanks are fixed to the outer periphery of the bracket, each equipped with an independently controlled end cap opening and closing mechanism. The bracket's top is provided with a draw hook and a pull rope connected to the draw hook, and the pull rope is provided with an indicator for indicating the completion status of sampling. The bracket's bottom is also provided with a deep-water thruster. The bracket's upper end is internally provided with a main control box, which houses a controller and multiple functional components for detecting water quality and reflecting the status of the water sampling device. The present invention can collect water samples at a depth of 200 meters, complete continuous water quality parameter collection in a single collection, and collect water samples at multiple depths, with high collection efficiency and accuracy.
Description
Technical Field
The invention relates to the technical field of water sample collection, in particular to a multi-parameter layered water sample collector. The invention also relates to a sampling method of the multi-parameter layered water sample collector.
Background
Comprehensive cognition of water quality of lakes, reservoirs and rivers is a primary task for water environment treatment. Firstly, the phenomenon of quaternary water layering exists in the lake and reservoir water body, and layered sampling is carried out on the lake and reservoir water body, so that the method is a necessary premise for comprehensively knowing the lake and reservoir water quality. And secondly, limited by natural factors of lakes and reservoirs, different layering conditions have obvious differences, and basic water quality characteristics of the water body, such as temperature, conductivity, flow rate and the like at different depths, need to be synchronously mastered while layering water body acquisition. The water sample collection of different depth levels and the water quality parameter acquisition of the site parameters at the same position are realized, so that the water layering condition can be recognized, and the sampling strategy can be guided through the layering condition.
At present, the layered sampling of water bodies with higher depths, such as rivers, reservoirs, lakes and the like, and the monitoring of indexes, such as water temperature, conductivity and the like are the requirements of water body environment investigation and scientific research, but no equipment is provided for sampling the current water flow speed by the same position while collecting the water sample process with the current layer depth. In addition, the traditional river and lake water sample collector generally only can collect one point position each time, needs to repeatedly collect water samples with different depths, has low collection efficiency, is not suitable for deep water sampling, is influenced by the water flow, has a certain inclination in the water body due to the fact that a sampling rope shows a certain inclination, judges that a large error exists in the water depth according to the length of a rope mark, and causes a large error in a sampling result.
Disclosure of Invention
The invention aims to provide a multi-parameter layered water sampling device so as to overcome the defects in the prior art.
The technical scheme includes that the multi-parameter layered water sampling device comprises a support and water sampling tanks, wherein a plurality of water sampling tanks are fixed on the periphery of the support, an end cover opening and closing mechanism which is independently controlled is arranged on each water sampling tank, the end cover opening and closing mechanism is used for sealing the water sampling tanks after water samples are collected in the water sampling tanks, a drag hook and a pull rope connected with the drag hook are arranged at the top end of the support, an indicating mechanism used for indicating the sampling completion state is arranged on the pull rope, a deep water propeller is further arranged at the bottom end of the support, a main control box is arranged in the upper end of the support, a controller and a plurality of functional pieces are arranged in the main control box, and the functional pieces are electrically connected with the controller and are used for detecting water quality and/or reflecting the state of the water sampling device.
Further, the multi-parameter layered water sample collector comprises two end covers arranged at two ends of the water collecting tank, the water collecting tank is fixedly connected with the support through supports arranged at two ends of the outer side of the water collecting tank, one end of the end cover is hinged with the support through a hinge, the other end of the end cover is movably connected with the first electromagnet, the first electromagnet is fixed on the support and is electrically connected with the controller, and the sealing directions of the two end covers are also connected with elastic ropes penetrating through the water collecting tank.
Further, the above-mentioned multi-parameter layering water sampling collector, indicating mechanism includes floater, second electro-magnet, iron sheet, the second electro-magnet is fixed on the support, is located between two first electro-magnets, the second electro-magnet is connected with the controller is automatically controlled, iron sheet and second electro-magnet swing joint, the floater is established on the stay cord through the lantern ring cover on the floater, and through with connect steel wire and iron sheet fixed connection on the lantern ring.
Further, the multi-parameter layered water sample collector comprises a depth sensor, a thermocouple and an acceleration sensor, wherein the depth sensor and the acceleration sensor are respectively used for detecting the underwater depth and the acceleration of the water sample collector, and the thermocouple is used for detecting the water temperature.
Further, the water sample collector is adopted in the multi-parameter layering, sealed lid is equipped with to main control box body below, sealed lid includes sealed lid, lower sealed lid, sealed main control box bottom opening of upper sealed lid, lower sealed lid, and its centre all is equipped with the intermediate hole that supplies depth sensor, thermocouple to stretch out, upper seal covers and still is equipped with a plurality of cable and draws forth the hole, upper seal covers and still is equipped with the sealing washer groove that is located the intermediate hole and the cable draws forth the hole outside, be equipped with the sealing washer in the sealing washer groove. The cable of the cable leading-out hole is correspondingly connected with each functional piece, the first electromagnet, the second electromagnet, the deep water propeller and the like.
Furthermore, the multi-parameter layered water sample collector is characterized in that the upper sealing cover and the lower sealing cover are made of stainless steel and are fixed at the bottom of the main control box through screws and insulating rubber, and the upper sealing cover and the lower sealing cover are respectively used as an electrode for detecting the conductivity of water.
Further, the multi-parameter layered water sample collector is characterized in that a Bluetooth module, a memory and a battery which are electrically connected with the controller are further arranged in the main control box, and the battery is used for supplying power and is charged through a wireless electric energy receiving device arranged in the main control box.
The invention also provides a sampling method of the multi-parameter layered water sample collector, which comprises the following steps:
S1, checking a water sample sampler, and setting the water sampling depth of each water sampling tank for collecting a water sample;
s2, a controller controls the first electromagnet and the second electromagnet to be electrified, the end cover and the iron sheet are respectively adsorbed on the first electromagnet and the second electromagnet, then the water sample sampler is put into water from a sampling point, and the geographic coordinates of the sampling point are recorded;
S3, in the descending process of the water sample sampler, collecting the water temperature, the conductivity and the flow velocity of water flow at intervals, and storing the collected water flow data and the depth of water flow in a memory;
S4, in the descending process of the water sample sampler, sequentially completing water sample collection of all water sampling tanks according to the shallow-to-deep sampling sequence, wherein each time a set water collection depth is reached, the corresponding water sampling tank collects the water sample with the depth, and after the collection is completed, the end cover opening and closing mechanism is started to seal the water sampling tank;
S5, after the last water sampling tank finishes water sample collection, namely, after the first electromagnet corresponding to the last water sampling tank is powered off, the controller controls the second electromagnet to be powered off, the iron sheet is separated from the second electromagnet, the floating ball is not pulled by the iron sheet, the floating ball floats up quickly along the pull rope under the buoyancy effect of water, and when the floating ball floats out of the water surface, the water sample sampler can be pulled out of the water surface;
S6, after the water sample sampler is pulled out of the water surface, the data stored in the memory are sent to ground equipment through the Bluetooth module, the water sample in each water sampling tank is detected, the detection data are combined with the data of the memory to perform data processing, a water sample component data table is obtained, and one-time water sample collection is completed.
Further, according to the sampling method of the multi-parameter layered water sample collector, when the water sampling tank collects water samples in the step S4, the water sampling tank horizontally collects, when the water sampling tank approaches to the set water collection depth, the controller starts the deep water propeller, when the water sampling tank reaches the set water collection depth, the deep water propeller adjusts the support to be in a horizontal state, the water sampling tank is also in a horizontal state along with the support, the water sampling tank horizontally collects the water samples, and after the water sampling tank collects the water samples, the deep water propeller stops, and the water sample collector continuously descends.
Further, in the above-mentioned sampling method of the multi-parameter layered sampling water sample collector, in step S3, the flow velocity of the water flow is obtained by a calculation method stored in the memory, and the calculation method is as follows:
S31, a stress model of the water sampler is built, the water sample collector is in an inclined state in the descending process due to the impact of water flow, the included angle between the water sample collector and the vertical direction is theta, and a calculation formula 1 of the water flow force is as follows:
wherein G is the gravity of the water sample collector, F Resistance resistor is the resistance of water flow, F Floating device is the buoyancy of water flow, F Pulling device is the pulling force of a pull rope, F Water flow is the water flow force, and a Vertical and vertical is the acceleration of the water sample collector in the vertical direction.
S32, obtaining the gravity G through weighing, then sinking the water sample collector into a water tank to obtain the F Floating device , and recording the obtained data into a memory.
S33, in a constant water tank, measuring the received size of F Water flow by adopting different flow rates, obtaining the relation between the flow rate v and F Water flow , and recording the relation into a memory;
S34, because the descending speed and the water flow speed are slower, F Resistance resistor =kV, k is a damping coefficient, V is the moving speed of the water sample collector in water, the damping coefficient k is calculated by establishing a relatively static no-flow water body model, and V can be calculated by interval distance and time, wherein the interval distance is provided by data returned by the depth sensor.
And S35, substituting the data obtained in the steps S32, S33 and S34 into the formula 1 to obtain the flow velocity of the water flow.
Further, in the above-mentioned sampling method of multi-parameter layered sampling water sample collector, in step S34, the method for calculating the damping coefficient k is as follows:
A relatively static, non-flowing body of water is selected, and the device is allowed to fall freely, using, for example, a lake near shore, where θ is0 in equation 1. The depth H i of the ith time is measured every 100ms, and the falling speed of the water sample collector at the moment is formula 2:
To improve accuracy, data may be acquired multiple times (e.g., 10 times) at 100ms intervals and then processed using a difference-by-difference method. And calculating V i, recording the acceleration a yi in the vertical direction of the water sample collector returned by the corresponding acceleration sensor, substituting a series of data of theta, V i and a yi into a formula 1, and calculating a damping coefficient through least square fitting.
Compared with the prior art, the invention has the beneficial effects that:
The deep water collection device can achieve deep water collection with the depth of 200 meters, can achieve collection with multiple depths through the arrangement of multiple water collection tanks, is high in collection efficiency, can accurately judge the collection completion state through the arrangement of the indicating mechanism, avoids time waste caused by excessive collection, and further improves collection efficiency, can achieve horizontal collection through the arrangement of the deep water propeller, eliminates depth errors caused by the length of the tank body, improves collection accuracy, can measure the conductivity of water and water in real time when the water collection tanks descend, can effectively overcome the measurement errors of multiple sensors caused by water flow, and achieves continuous water quality parameter collection and multi-layer deep water sample collection through one-time collection. The end cover opening and closing mechanism has the advantages of simple structure, convenient control, low manufacturing cost, more stable sealing and deeper water sample collection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a multi-parameter layered water sample collector according to the present invention;
FIG. 2 is a schematic diagram of a master control box structure of the multi-parameter layered water sample collector;
FIG. 3 is a graph of the force analysis of the multi-parameter layered water sample collector of the present invention as it descends;
In the figure, 1, a bracket; 2, a water collecting tank, 3, an end cover opening and closing mechanism, 31, an end cover, 32, a support, 33, a first electromagnet, 34, an elastic rope, 4, a draw hook, 5, a pull rope, 6, an indicating mechanism, 61, a floating ball, 62, a second electromagnet, 63, an iron sheet, 64, a steel wire, 7, a deep water propeller, 8, a main control box, 81, an upper sealing cover, 811, a middle hole, 812, a cable leading-out hole, 813, a sealing ring groove, 82 and a lower sealing cover.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in figures 1-2, the multi-parameter layered water sample collector comprises a support 1 and water sampling tanks 2, wherein a plurality of water sampling tanks 2 are fixed on the periphery side of the support 1, an end cover opening and closing mechanism 3 which is independently controlled is arranged on each water sampling tank 2, the end cover opening and closing mechanism 3 is used for sealing the water sampling tanks 2 after water samples are collected by the water sampling tanks 2, 3 water sampling tanks 2 are correspondingly arranged in the embodiment, the collection requirements of three upper, middle and lower points of each collection can be met, a draw hook 4 and a pull rope 5 connected with the draw hook 4 are arranged at the top end of the support 1, an indicating mechanism 6 used for indicating the completion state of the collection is arranged on the pull rope 5, a deep water propeller 7 is further arranged at the bottom end of the support 1, the deep water propeller 7 not only can be used for adjusting the water sample collector to be in a horizontal state, but also can be used for accelerating the water sampling device to push out of the water surface, a main control box 8 is arranged in the upper end of the support, a controller and a plurality of functional pieces are arranged in the main control box 8, the functional pieces are electrically connected with the controller and are used for detecting water quality and/or water quality detector, the water sample collector temperature and water quality detector are used for detecting the water quality, and water quality acceleration detector and water sample collector temperature and water quality acceleration states include the water quality and water quality acceleration states. The water sample collector can realize deep water collection with the depth of 200 meters, can complete collection with multiple depths through the arrangement of the water collection tanks 2, is high in collection efficiency, can accurately judge the collection completion state during deep water collection through the arrangement of the indicating mechanism 6, avoids time waste caused by excessive collection, and further improves collection efficiency, and on the other hand, can horizontally collect during collection of the water collection tanks 2 through the arrangement of the deep water propeller 7, eliminates depth errors caused by the length of the tank body, and improves collection accuracy.
In the structure, the functional part comprises a depth sensor, a thermocouple and an acceleration sensor, wherein the depth sensor and the acceleration sensor are respectively used for detecting the underwater depth and the acceleration of the water sample collector, and the thermocouple is used for detecting the water temperature. The depth sensor can accurately detect the depth of the water sample collector in water, and errors caused by marking by ropes are eliminated. Specifically, the acceleration sensor is an MPU6050 acceleration sensor, which includes a 16-bit ADC tri-axis accelerometer, where a z、ay、ax can be acquired by using separate detection for each axis. Through the setting of function spare, can measure water temperature and the conductivity of water in real time when descending, time and spatial position can both keep the uniformity, can effectively overcome the multisensor measurement error that the water flows and bring.
As shown in fig. 1-2, a sealing cover is arranged below the main control box body, the sealing cover comprises an upper sealing cover 81 and a lower sealing cover 82, the upper sealing cover 81 and the lower sealing cover 82 seal the bottom opening of the main control box 8, middle holes 811 for extending a depth sensor and a thermocouple are formed in the middle of the upper sealing cover 81, a plurality of cable lead-out holes 812 are further formed in the upper sealing cover 81, a sealing ring groove 813 positioned outside the middle holes 811 and the cable lead-out holes 812 is further formed in the upper sealing cover 81, and a sealing ring is arranged in the sealing ring groove 813, so that the sealing effect is good. The cable of the cable outlet 812 is correspondingly connected with each functional element, the first electromagnet, the second electromagnet, the deep water propeller and the like.
In addition, the upper sealing cover 81 and the lower sealing cover 82 are made of stainless steel and are fixed at the bottom of the main control box 8 through screws and insulating rubber, and the upper sealing cover 81 and the lower sealing cover 82 are respectively used as an electrode for detecting the conductivity of water, so that the utilization rate of equipment is improved.
Example 2
Based on the structure of embodiment 1, as shown in fig. 1-2, the end cover opening and closing mechanism 3 comprises two end covers 31 arranged at two ends of the water collecting tank 2, the water collecting tank 2 is fixedly connected with the bracket 1 through supports 32 arranged at two ends of the outer side of the water collecting tank 2, one end of the end cover 31 is hinged with the supports 32 through a hinge, the other end of the end cover 31 is movably connected with a first electromagnet 33, the first electromagnet 33 is powered, the end cover 31 is adsorbed on the first electromagnet 33, otherwise, the end cover 31 is separated from the first electromagnet 33, the first electromagnet 33 is fixed on the bracket 1 and is electrically connected with a controller, and elastic ropes 34 penetrating from the water collecting tank 2 are further connected in the sealing direction of the two end covers 31. The water sampling tank 2 is sealed by adopting the mode of hinge, elastic rope 34 and electromagnetic attraction, compared with the mode of a motor driven hook, the water sampling tank has the advantages of simple structure, convenient control, low manufacturing cost, more stable sealing and capability of realizing deeper (reaching 200 meters) water sample collection.
The indication mechanism 6 comprises a floating ball 61, a second electromagnet 62 and an iron sheet 63, wherein the second electromagnet 62 is fixed on the bracket 1 and is positioned between the two first electromagnets 33, the second electromagnet 62 is electrically connected with the controller, the iron sheet 63 is movably connected with the second electromagnet 62, the second electromagnet 62 is electrified, the iron sheet 63 is adsorbed on the second electromagnet 62, otherwise, the iron sheet 63 is separated from the second electromagnet 62, the floating ball 61 is sleeved on the pull rope 5 through a lantern ring on the floating ball 61, and is fixedly connected with the iron sheet 63 through a steel wire 64 connected with the lantern ring. And by the arrangement of the indication mechanism 63 and the indication mechanism, the acquisition completion time can be accurately judged, and the acquisition efficiency is improved. Compared with the short wave transmission information such as Bluetooth, the short wave transmission information such as Bluetooth is difficult to transmit underwater, the transmission distance in water can be reduced to about 1 meter, the deep water collection is not suitable, and compared with the radio long wave communication, the device cost is high although the radio long wave communication can transmit in the deep water.
The main control box 8 is internally provided with a Bluetooth module, a memory and a battery which are electrically connected with the controller, and the battery is used for supplying power and is charged through a wireless electric energy receiving device arranged in the main control box. The memory is a memory chip W25Q128JVSIQ.
Example 3
The sampling method adopting the multi-parameter layered sampling water sample collector described in the embodiment 1 or the embodiment 2 comprises the following steps:
s1, checking a water sample sampler, and setting the water sampling depth of each water sampling tank 2 for collecting a water sample;
S2, the controller controls the first electromagnet 33 and the second electromagnet 62 to be electrified, the end cover 31 and the iron sheet 63 are respectively adsorbed on the first electromagnet 33 and the second electromagnet 62, then the water sample sampler is put into water from a sampling point, and the geographic coordinates of the sampling point are recorded;
S3, in the descending process of the water sample sampler, the water temperature, the conductivity and the flow velocity of water flow are collected at intervals, the collected water flow data and the depth of the water flow are stored in a memory, the water temperature and the conductivity of the water can be measured in real time while the water sample sampler descends, the consistency of time and space positions can be maintained, and the measuring error of multiple sensors caused by water flow can be effectively overcome. This spacing distance may be set as desired, for example, 0.5 meters, 1 meter, etc.
S4, in the descending process of the water sample sampler, sequentially completing water sample collection of all the water sampling tanks 2 according to the shallow-to-deep sampling sequence, and collecting the water sample at the depth every time a set water collection depth is reached, starting the deep water propeller 7 by the controller when the water collection depth is close to the set water collection depth, and adjusting the bracket 1 to be in a horizontal state by the deep water propeller 7 when the water collection depth is reached, wherein the water collection tank 2 is also in a horizontal state along with the bracket 1, and the water sample is collected horizontally by the water collection tank 2;
S5, after the last water sampling tank 2 finishes water sample collection, namely after the first electromagnet 33 corresponding to the last water sampling tank 2 is powered off, the controller controls the second electromagnet 62 to be powered off, the iron sheet 63 is separated from the second electromagnet 63, the floating ball 61 is not pulled by the iron sheet 63 any more, the floating ball floats up quickly along the pull rope 5 under the buoyancy of water, and when the floating ball 61 floats out of the water surface, the water sample sampler can be pulled out of the water surface;
s6, processing data, after the water sample sampler is pulled out of the water surface, sending the data stored in the memory to ground equipment through a Bluetooth module, for example, detecting the water sample in each water sampling tank 2 by a mobile phone, combining the detection data with the data of the memory to perform data processing, obtaining a water sample component data table, and completing one-time water sample acquisition.
The flow velocity of the water flow in step S3 is obtained by a calculation method stored in a memory, the calculation method being:
s31, a stress model of the water sampler is built, as shown in fig. 3, due to the impact of water flow, the water sample collector is in an inclined state in the descending process, the included angle between the water sample collector and the vertical direction is theta, and the calculation formula 1 of the water flow force is as follows:
Wherein G is the gravity of the water sample collector, F Resistance resistor is the resistance of water flow, F Floating device is the buoyancy of water flow, F Pulling device is the pulling force of a pull rope, F Water flow is the water flow force, a Vertical and vertical is the acceleration of the water sample collector in the vertical direction, and the acceleration a y、az and a x shown in FIG. 2 can be obtained by an acceleration sensor.
S32, obtaining the gravity G through weighing, then sinking the water sample collector into a water tank to obtain the F Floating device , and recording the obtained data into a memory.
S33, in a constant water tank, measuring the received size of F Water flow by adopting different flow rates, obtaining the relation between the flow rate v and F Water flow , and recording the relation into a memory;
s34, because the descending speed and the water flow speed are slower, F Resistance resistor =kV, k is a damping coefficient, V is the moving speed of the water sample collector in water, V can be calculated through the interval distance and time, the interval distance is provided through the data returned by the depth sensor, and the calculating method of the damping coefficient k is as follows:
A relatively static, non-flowing body of water is selected, and the device is allowed to fall freely, using, for example, a lake near shore, where θ is0 in equation 1. The depth H i of the ith time is measured every 100ms, and the falling speed of the water sample collector at the moment is formula 2:
To improve accuracy, data may be acquired multiple times (e.g., 10 times) at 100ms intervals and then processed using a difference-by-difference method. And calculating V i, recording the acceleration a yi in the vertical direction of the water sample collector returned by the corresponding acceleration sensor, substituting a series of data of theta, V i and a yi into the formula 1, and calculating the damping coefficient k through least square fitting. The method comprises the following steps:
When θ is 0, equation 1 can be reduced to equation 3 below:
G+F Resistance resistor +F Floating device +F Pulling device ＝ma Vertical and vertical
Substituting F Resistance resistor =kv into equation 3 yields equation 4:
G+kVi+F Floating device +F Pulling device ＝mayL
The value a Vertical and vertical is the measured value a yi returned by the acceleration sensor, the size of the ith point F Resistance resistor is obtained through the formula 3, and then the damping coefficient k is calculated through the formula 4. In order to improve the accuracy of the damping coefficient k, the accurate k can be obtained after mean processing by calculating the sizes of a plurality of point positions F Resistance resistor .
And S35, substituting the data obtained in the steps S32, S33 and S34 into the formula 1 to obtain the flow velocity of the water flow.
It should be noted that under the normal measurement condition, the acceleration shake is smaller, the laminar flow is represented, after k is acquired, data corresponding to H i、azi、ayi、axi and the like is recorded every 100ms, the size of F Water flow i can be calculated by using the formula 1, and the laminar flow velocity of the depth is obtained according to the previous preprocessing data. If the acceleration a zi、ayi、axi is shaking sharply at the point, the turbulence is shown at the depth, the frequency of the acceleration change is calculated, and the frequency is used for representing the turbulence.
According to the adoption method of the multi-parameter layered water sample collector, the depth and geographic coordinate information of water sample collection are collected while the water sample is collected, the water quality parameters of all depths can be collected immediately, the parameter data are stored in the memory, and the parameter data and the water sample collection data are combined to form a water sample composition table, so that the water sample information of a target position can be conveniently and rapidly known, and data support is provided for subsequent research work.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
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