CN114910521A - Water pollution detection device and method and electronic equipment - Google Patents
Water pollution detection device and method and electronic equipment Download PDFInfo
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- CN114910521A CN114910521A CN202210591788.2A CN202210591788A CN114910521A CN 114910521 A CN114910521 A CN 114910521A CN 202210591788 A CN202210591788 A CN 202210591788A CN 114910521 A CN114910521 A CN 114910521A
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- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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Abstract
The invention provides a water pollution detection device, a water pollution detection method and electronic equipment, and relates to the technical field of geological environment monitoring, wherein the water pollution detection device comprises a monitoring host and a heavy object; the monitoring host comprises a conductivity detector, a pressure detector, a central processing unit, a communication module and an openable and closable assembly; the openable and closable assembly is positioned at the bottom of the monitoring host machine and is used for hanging heavy loads; the conductivity detector is used for measuring the conductivity of the water body to be measured; the pressure detector is used for measuring the pressure value born by the monitoring host; the central processing unit is used for determining the monitoring water depth of the monitoring host machine based on the pressure value measured by the pressure detector, transmitting the monitoring water depth and the conductivity to the upper machine through the communication module, and controlling the openable component and the heavy-load object to be released from hooking after the completion of the sampling, so that the monitoring host machine can float up to the water surface independently. The device has the characteristics of small easily carrying, and need not to rely on the manpower adjustment depth of measurement in the testing process, saves time and laborsaving, has promoted water pollution detection efficiency effectively.
Description
Technical Field
The invention relates to the technical field of geological environment monitoring, in particular to a water pollution detection device and method and electronic equipment.
Background
At present, the existing hydrogeological results do not conform to hydrogeological conditions, and the exploration degree of water resources does not adapt to the demand of water, so that the research precision of hydrogeology needs to be further improved. The water pollution measuring instrument sold in the market mainly comprises a field rapid monitoring instrument and an on-line monitoring instrument, the two instruments are generally provided with a sensor probe at the front end, the sensor probe is thrown into a water body during testing, the sensor is connected with a control host machine on the water surface through a data cable, and the length of the data cable entering the water is manually adjusted to realize the measurement of the sensor probe at different depths. The whole monitoring process mostly depends on manual paying-off and taking-up, one-time measurement is completed, time and labor are wasted, and the testing efficiency is very low.
Disclosure of Invention
The invention aims to provide a water pollution detection device, a water pollution detection method and electronic equipment, so as to solve the technical problem of low water pollution detection efficiency in the prior art.
In a first aspect, the present invention provides a water pollution detection device comprising: monitoring the host and the heavy load; the monitoring host comprises a conductivity detector, a pressure detector, a central processing unit, a communication module and an openable and closable assembly; the openable and closable assembly is positioned at the bottom of the monitoring host machine and is used for hanging the heavy load; the conductivity detector is positioned on the shell of the monitoring host machine and used for measuring the conductivity of the water body to be measured; the pressure detector is positioned on the shell of the monitoring host machine and used for measuring the pressure value born by the monitoring host machine; the communication module is positioned in the shell of the monitoring host and used for communicating with an upper computer; the central processing unit is respectively connected with the conductivity detector, the pressure detector, the communication module and the openable component, and is used for determining the monitoring water depth of the monitoring host machine based on the pressure value measured by the pressure detector, transmitting the monitoring water depth and the conductivity to the upper computer through the communication module, and controlling the openable component and the heavy-load object to be detached after determining that sampling is completed, so that the monitoring host machine can float up to the water surface independently.
In an optional embodiment, the monitoring host further comprises: a temperature sensor; the temperature sensor is positioned on the shell of the monitoring host machine, is connected with the central processing unit, and is used for measuring the ambient temperature of the monitoring host machine and sending the ambient temperature to the central processing unit; the central processor is further configured to correct the conductivity based on the ambient temperature.
In an optional embodiment, the monitoring host further comprises: a vibration motor; the vibration motor is positioned in the shell of the monitoring host machine, is connected with the central processing unit and is used for vibrating under the control of the central processing unit; the central processing unit is used for sending a vibration instruction to the vibration motor to enable the vibration motor to vibrate if the variation of the monitored water depth within a first time period is determined to be not more than a first threshold value before the monitoring host floats to the water surface.
In an optional embodiment, the monitoring host further comprises: a warning module; the warning module is positioned outside the shell of the monitoring host, is connected with the central processing unit and is used for starting sound and light alarm under the control of the central processing unit; the central processing unit is used for sending a starting instruction to the warning module when the monitoring host is determined to be located on the water surface, so that the warning module can give out sound and light alarm.
In an optional embodiment, a threading hole is further formed in the shell of the monitoring host.
In a second aspect, the present invention provides a water pollution detection method applied to the water pollution detection device according to any one of the foregoing embodiments, including: before the pollution detection device is thrown into a water body to be detected, acquiring the current ambient atmospheric pressure value; after the pollution detection device is thrown into a water body to be detected, acquiring the conductivity of the water body to be detected and a pressure value borne by a monitoring host machine based on a preset sampling strategy, determining the monitoring water depth of the monitoring host machine based on the pressure value, and sending the monitoring water depth and the conductivity to an upper computer through a communication module; after the sampling is determined to be completed, the openable component is controlled to be unhooked from the heavy-load object, so that the monitoring host can float up to the water surface automatically.
In an alternative embodiment, the method further comprises: before the monitoring host floats to the water surface, if the variation of the monitoring water depth within a first time period is determined not to exceed a first threshold value, a vibration instruction is sent to a vibration motor so that the vibration motor vibrates.
In an alternative embodiment, the method further comprises: before the openable component is hooked with the heavy-load object, and after vibration of the vibration motor is finished, acquiring the current monitoring water depth of the monitoring host;
and if the difference value between the current monitored water depth and the monitored water depth before the vibration of the vibrating motor does not exceed the first threshold value, determining that the monitoring host is positioned at the water bottom.
In an alternative embodiment, the method further comprises: and before the pollution detection device is thrown into the water body to be detected, calibrating a conductivity detector and a pressure detector in the monitoring host.
In a third aspect, the present invention provides an electronic device, which includes a memory and a processor, wherein the memory stores a computer program operable on the processor, and the processor executes the computer program to implement the steps of the water pollution detection method according to any one of the foregoing embodiments.
The invention provides a water pollution detection device, comprising: monitoring the host and the heavy load; the monitoring host comprises a conductivity detector, a pressure detector, a central processing unit, a communication module and an openable and closable assembly; the openable and closable assembly is positioned at the bottom of the monitoring host machine and is used for hooking and connecting the heavy load; the conductivity detector is positioned on the shell of the monitoring host machine and used for measuring the conductivity of the water body to be measured; the pressure detector is positioned on the shell of the monitoring host machine and used for measuring the pressure value born by the monitoring host machine; the communication module is positioned in the shell of the monitoring host and used for communicating with the upper computer; the central processing unit is respectively connected with the conductivity detector, the pressure detector, the communication module and the openable and closable assembly, and is used for determining the monitoring water depth of the monitoring host machine based on the pressure value measured by the pressure detector, sending the monitoring water depth and the conductivity to the upper computer through the communication module, and controlling the openable and closable assembly to be released from hooking with the heavy load after the completion of sampling is determined, so that the monitoring host machine can float to the water surface independently.
When the water pollution detection device provided by the invention is used for detecting the water pollution of the water body to be detected, the monitoring host can slowly sink under the action of heavy objects only by throwing the device into the water body to be detected, and the water body to be detected is detected according to actual measurement requirements; after the test is finished, the central processing unit controls the openable assembly to separate the heavy load from the monitoring host machine, so that the monitoring host machine can float upwards automatically. The water pollution detection device provided by the invention has the characteristics of small volume and easiness in carrying, the measurement depth does not need to be adjusted by manpower in the test process, time and labor are saved, and the water pollution detection efficiency is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a water pollution detection device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an alternative water pollution detection device provided in an embodiment of the present invention;
FIG. 3 is a flow chart of a method for detecting water pollution according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating detection of a voltage-type electrodeless conductivity sensor according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a detection of a current loop type electrodeless conductivity sensor according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Icon: 100-monitoring the host computer; 200-heavy loading; 300-a conductivity detector; 400-a pressure detector; 500-an openable and closable assembly; 60-a processor; 61-a memory; 62-a bus; 63-communication interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The water pollution measuring instruments sold in the market mainly comprise on-site rapid monitoring instruments and on-line monitoring instruments, and generally, the front ends of the instruments are provided with sensor probes which are connected with a control host machine on the water surface through data cables. In addition, the above two instruments can only fixedly monitor water pollution at a certain depth, or need manual work or other auxiliary equipment to assist automatic lifting or lowering to adjust the water inlet length of the data cable, so as to realize measurement of the sensor probe at different depths. When monitoring darker water, the cable all will occupy very big volume and weight, carries inconveniently, especially under the inconvenient, the more condition of monitoring point of field traffic, when investigation work, these instrument and equipment of manual handling, work efficiency is very low. And whole monitoring process mostly relies on artifical unwrapping wire to receive the line, accomplishes once measuring, wastes time and energy, leads to efficiency of software testing very low. Accordingly, the present invention is directed to a water pollution detection device, which alleviates the above-mentioned problems.
Example one
Fig. 1 is a schematic structural diagram of a water pollution detection device according to an embodiment of the present invention, and as shown in fig. 1, the water pollution detection device includes: monitoring the host 100 and the ballast 200; monitoring host 100 includes conductivity detector 300, pressure detector 400, a central processor (not shown in fig. 1), a communication module (not shown in fig. 1), and openable and closable assembly 500.
The openable and closable assembly 500 is located at the bottom of the monitoring main machine 100 and is used for hanging the heavy load 200.
The conductivity detector 300 is located on the housing of the monitoring main unit 100, and is used for measuring the conductivity of the water body to be measured.
The pressure detector 400 is located on the housing of the monitoring host 100, and is used for measuring the pressure value borne by the monitoring host 100.
The communication module is located inside the housing of the monitoring host 100 and is used for communicating with the upper computer.
The central processing unit is respectively connected with the conductivity detector 300, the pressure detector 400, the communication module and the openable and closable assembly 500, and is used for determining the monitoring water depth of the monitoring host machine 100 based on the pressure value measured by the pressure detector 400, sending the monitoring water depth and the conductivity to the upper computer through the communication module, and controlling the openable and closable assembly 500 to be detached from the reloading object 200 after the completion of sampling is determined, so that the monitoring host machine 100 can float up to the water surface independently.
The water pollution detection device provided by the embodiment of the invention has the design idea that: the water pollution detection device can automatically and slowly sink after entering water; when the water pollution detection is finished, the monitoring host 100 can float upwards from the water. As can be seen from the above description of the composition and functions of the components of the water pollution detection device provided in the embodiment of the present invention, the water pollution detection device is divided into two parts, namely, the monitoring host 100 and the ballast 200, and the monitoring host 100 is connected to the ballast 200 through the openable and closable component 500 at the bottom of the monitoring host. If the heavy load 200 is not hung at the bottom of the monitoring main machine 100, the monitoring main machine 100 does not sink after being thrown into the water body to be measured.
In the embodiment of the present invention, the heavy load 200 is made of bonded sand, has a certain mass, and is used to increase the overall weight of the water pollution detection device, so as to assist the monitoring host 100 to slowly sink to the water bottom after entering water. The gravity of the water pollution detection device in the sinking process is slightly larger than the buoyancy, so that the sinking process is in a slow descending state. After confirming that monitoring host 100 sinks to the appointed test water depth even the water bottom, monitoring host 100 is separated from ballast 200, at this moment, because the buoyancy that monitoring host 100 receives is greater than self gravity, monitoring host 100 can return to the surface of water through autonomous floating.
Heavy year thing 200 belongs to the test consumables, and the monitoring can use one at every turn, and the material is solid-state grit to constitute, and use cost is very low, can become loose grit material after soaking for a long time in aqueous, sinks in the bottom, can not produce any influence and harm to the quality of water of monitoring well and the water body that awaits measuring. In addition, if there is foreign matter or silt in the bottom of the water body to be measured, the heavy-duty object 200 can also avoid the monitoring host 100 from directly contacting with debris such as silt at the bottom, resulting in being stuck and not floating upwards.
Alternatively, in order to make the ascending posture and the descending posture of the water pollution detecting apparatus in the water easier to control and less likely to be hindered by foreign objects, the outer shapes of the ballast 200 and the monitoring main body 100 are spherical. The user may also adjust the shapes of the monitoring host 100 and the ballast 200 according to the actual application requirements, which is not specifically limited in the embodiments of the present invention.
In the water pollution detection device provided by the embodiment of the present invention, the components for measuring data mainly include a conductivity detector 300 and a pressure detector 400, both of which are disposed on the housing of the monitoring host 100, the conductivity detector 300 is used for measuring the conductivity of the water body at the depth of the monitoring host 100, and the pressure detector 400 is used for measuring the pressure borne by the monitoring host 100.
The electrode of the traditional electrode type conductivity measuring probe is easy to generate polarization phenomenon once being used for a long time, and particularly when the traditional electrode type conductivity measuring probe is used in a severe water quality environment, the traditional electrode type conductivity measuring probe has the technical problems of short service life, high damage rate, need of periodic replacement and high maintenance cost. In order to solve the above problem, the conductivity detector 300 in the embodiment of the present invention may select an electrodeless conductivity sensor.
The measurement principle of the electrodeless sensor is that a pair of wire-wound alloy annular coils is adopted, and a probe of the sensor is completely isolated (non-contact) with the measured liquid. Two coils, one as a transmitter and the other as a receiver. When the transmitter coil is energized, the electrolyte solution conducts to generate an induced current, which is proportional to the conductivity of the solution, and the receiver coil detects the magnitude of the current, thereby determining the conductivity value of the solution. The conductivity probe is a two wire wound alloy toroid customized in a toroidal mold having corrosion resistance properties. Because the probe of the sensor is completely isolated (non-contacting) from the liquid being measured, frequent maintenance and upkeep is not required. Compared with the traditional electrode type conductivity measurement process, the method fundamentally avoids the problems of ion deposition and coverage on the surface of the electrode, polarization, oil stain or pollution and the like, and cannot influence the performance of the electrodeless sensor, and has longer service life and lower product maintenance cost compared with the traditional electrode type conductivity measurement probe. In addition, the flow rate of the water does not affect the reading of the conductivity or resistivity values, which depend on the purity or composition of the water, regardless of the flow rate through the sensor.
When detecting water pollution of a water body to be detected, the detection requirement generally includes water depth, for example, the conductivity of the water body to be detected at a plurality of specified water depths is measured. Knowing how many meters of water can be converted to all pressures, 1 PA-0.101972 mm-H2O represents the pressure produced by water with a pressure of 1PA equal to 0.101972mm high. Therefore, in the water pollution detection device in the embodiment of the present invention, the pressure detector 400 is disposed on the housing of the monitoring host 100, when the water pollution detection device is used to detect water pollution of a water body to be detected, the depth of the monitoring host 100 in water is constantly changed, the pressure detector 400 measures the pressure value borne by the monitoring host 100 and sends the pressure value to the central processing unit, the central processing unit can determine the monitoring water depth of the monitoring host 100 according to the pressure value, so as to bind the monitoring water depth with the conductivity measured by the conductivity detector 300 and send the monitoring water depth to the upper computer through the communication module, wherein the monitoring water depth represents the depth of the pressure detector 400 in water. Alternatively, the pressure detector 400 may select an absolute pressure sensor.
Specifically, to determine the monitored water depth of the monitoring host 100, the central processing unit first needs to calculate the pressure difference between the pressure value borne by the monitoring host 100 and the current atmospheric pressure value, and then converts the calculated pressure difference and the water depth to obtain the actual monitored water depth. Because the atmospheric pressure of the environment in a short time is kept unchanged, before the monitoring host 100 is thrown into water, the water pollution detection device is firstly kept in the atmospheric environment on the water surface of the water body to be detected, the atmospheric pressure value of the environment where the pressure sensor is currently located is obtained and stored, so that atmospheric pressure compensation is performed on subsequent measurement data. In the embodiment of the invention, the pressure used by the central processing unit in the conversion of the monitoring depth is the pressure without the influence of the atmospheric pressure, namely, the pressure generated by the water body.
As can be seen from the above description of the water pollution detection device provided in the embodiment of the present invention, when the water pollution detection device provided in the embodiment of the present invention is used for detection, the ballast 200 is first hung at the bottom of the monitoring host 100, and then the ballast 200 and the monitoring host are placed in the water body to be detected, so that the water pollution detection device is subjected to various external forces such as pressure, gravity, buoyancy, water resistance, and the like during a descending process, and needs to maintain a relative balance of the forces applied to the water pollution detection device during the descending process, so that the water pollution detection device slowly sinks to a specified measurement depth even to the bottom of the water body. In the descending process, the device measures the water pressure value and the conductivity according to a preset sampling strategy, and sends the conductivity and the monitored water depth obtained by processing to an upper computer; after the sampling is determined to be completed, the central processing unit unlocks the control openable and closable assembly 500 from the heavy object 200, so that the monitoring host 100 can float up to the water surface autonomously. If use above-mentioned device in groundwater monitoring well, then the monitoring well surface of water has certain distance apart from the well head, and the tester only needs to utilize supplementary recovery unit to salvage the recovery to monitoring host computer 100 can.
The water pollution detection device in the embodiment of the present invention is in communication connection with an upper computer through a communication module, the upper computer may be a cloud, a test platform, or a mobile terminal, such as a mobile phone, and the upper computer may receive test data, and may also perform parameter setting, command control, data transmission, acquisition and transmission control, and the like on the monitoring host 100 through the communication module.
When the water pollution detection device provided by the invention is used for detecting the water pollution of the water body to be detected, the monitoring host 100 can slowly sink under the action of the heavy load 200 only by putting the device into the water body to be detected, and the water body to be detected is detected according to the actual measurement requirement; after the test is finished, the cpu controls the openable and closable assembly 500 to separate the ballast 200 from the monitoring host 100, so that the monitoring host 100 automatically floats. The water pollution detection device provided by the invention has the characteristics of small volume and easiness in carrying, the measurement depth does not need to be adjusted by manpower in the test process, time and labor are saved, and the water pollution detection efficiency is effectively improved.
In an optional embodiment, the monitoring host 100 further includes: a temperature sensor.
The temperature sensor is located on the housing of the monitoring host 100 and connected to the central processing unit, and is used for measuring the ambient temperature of the monitoring host 100 and sending the ambient temperature to the central processing unit.
The central processor is also used for correcting the conductivity based on the ambient temperature.
Because the ambient temperature can have a certain influence on the conductivity measurement result, in order to improve the accuracy of the conductivity measurement result, a temperature sensor is additionally arranged on the shell of the monitoring host 100, the temperature sensor feeds the temperature measurement result back to the central processing unit, and the central processing unit can perform temperature compensation correction on the conductivity measured by the conductivity detector 300 through the temperature.
In an optional embodiment, the monitoring host 100 further includes: a vibration motor.
The vibration motor is located inside the housing of the monitoring host 100 and connected to the central processing unit for vibrating under the control of the central processing unit.
The central processing unit is used for sending a vibration instruction to the vibration motor to enable the vibration motor to vibrate if the variation of the monitored water depth within the first time period is determined not to exceed the first threshold value before the monitoring host machine 100 floats to the water surface.
Because the environment inside the water body to be tested is relatively complex, after the water pollution detection device is thrown into water, if the device encounters an obstacle in the ascending or descending process, the smooth execution of the test is influenced. Therefore, the detection device provided by the embodiment of the invention is provided with a blockage guarantee mechanism. Specifically, the vibration motor connected with the central processing unit is arranged inside the monitoring host 100, and when the central processing unit determines that the variation of the monitoring water depth of the monitoring host 100 in the first time period does not exceed the first threshold value, a vibration instruction is sent to the vibration motor so that the vibration motor vibrates, and the obstruction of obstacles in the water body can be effectively removed through vibration. That is, the monitoring host 100 has a vibration escape function.
Alternatively, the vibration motor may be an eccentric wheel motor, and the embodiment of the present invention does not specifically limit the type thereof, as long as a vibration escape function can be achieved. In addition, under the condition that the vibration motor is arranged, the periodic vibration preset time of the vibration motor can be configured, so that the monitoring host generates intermittent vibration to prevent the descending and floating processes from being blocked in advance, and the safety and the reliability of the water pollution detection device are improved.
In some embodiments, if the device is sinking for data measurement, the cpu determines that it has stopped dropping (the monitored water depth does not change by more than a first threshold value within a first time period), and first starts the vibration motor to vibrate intermittently for 5 seconds three times in succession. In order to ensure that the detection device is really descended to the bottom of the water body and prevent certain viscosity of some monitoring wells from hindering the detection device from sinking due to long time or preventing sundries such as aquatic weeds and the like in the water body from influencing the descending, the detection device firstly enters a vibration mode after the descending is determined to be stopped so as to ensure that the device can be smoothly descended to the bottom. When the monitoring host 100 enters the autonomous floating stage, if it is determined according to the monitoring water depth that the monitoring host 100 does not reach the water surface but does not rise any more, that is, the monitored pressure value does not change any more and keeps relatively balanced, then the central processing unit determines that the monitoring host 100 is obstructed at the moment, the vibration mode is started, and the vibration is stopped until the pressure value continuously changes, so that the monitoring host 100 floats to the water surface.
In an optional embodiment, the monitoring host 100 further includes: and an alarm module.
The warning module is located outside the housing of the monitoring host 100 and connected to the central processing unit, and is configured to turn on an audible and visual alarm under the control of the central processing unit.
The central processing unit is used for sending a starting instruction to the warning module when the monitoring host 100 is determined to be located on the water surface, so that the warning module can give out sound and light alarm.
Specifically, when wide surface of water or night, when water pollution detection device measurement ended, after monitoring host computer 100 floated to the surface of water, in order to make the staff change and catch its concrete position, the supplementary recovery that monitors host computer 100 that carries out, therefore, set up warning module in monitoring host computer 100's casing outside, and warning module is connected with central processing unit, in case after central processing unit confirmed that monitoring host computer 100 floated the surface of water, central processing unit sent and opens instruction to warning module, so that warning module carries out audible and visual alarm. The warning module can also be replaced by a simplified warning flash lamp, a warning lamp belt or a buzzer.
In an alternative embodiment, the casing of the monitoring host 100 is further provided with a threading hole.
It is specific, can not be clear clearly to await measuring the submarine condition of water, perhaps debris under water, weeds are more, even when the borehole wall barrier of monitoring well is more, can tie up a string through wires hole on monitoring host computer 100 casing on monitoring host computer 100, let it sink the test with monitoring host computer 100 together, prevent to be hindered seriously under water, the unable problem of retrieving that leads to of monitoring host computer 100 unable independent come-up, avoid loss of property.
In some embodiments, as shown in fig. 2, the monitoring host 100 may be divided into three main parts: the monitoring head comprises a conductivity detector 300, a pressure detector 400 and a temperature sensor, and the measurement of the conductivity, the pressure and the temperature of the water body is realized. The circuit cabin comprises a central processing unit, a vibration motor and the like, and the power supply cabin comprises a power supply system of the whole system and an openable component 500. The monitoring host 100 can realize various control functions of the whole system, such as clock control, data acquisition, processing and calculation, data interactive transmission, warning, vibration and the like. Optionally, the monitoring host 100 can bear 1mpa of pressure, and a plurality of function keys can be arranged on the device shell according to the actual requirements of the user.
Alternatively, in the case where the monitoring mainframe 100 and the heavy load 200 are both spheroids, the mass of the heavy load 200 may be determined by referring to the following method. Taking the force analysis of any sphere as an example, if a sphere sinks in a liquid, a relative motion exists between a liquid layer attached to the sphere and other liquid layers around the sphere, so that the sphere is subjected to viscous resistance, the magnitude of the viscous resistance is related to the sinking speed of the sphere, according to stokes law, the viscous resistance f of the sphere is 6 pi eta Rv, wherein eta represents the viscous leakage coefficient of the liquid, the viscous leakage coefficient is related to the type of the sphere and the ambient temperature, R represents the radius of the sphere, and v represents the moving speed of the sphere.
Three acting forces are considered in the process of the sphere rising and floating in water, which are respectively: gravity G, buoyancy F and viscous drag F, G being mg, F being ρ gV, F being 6 pi η Rv, where V represents the volume of the sphere. The three forces are all in the vertical direction, when water enters, the speed of the ball body is low, the corresponding viscous resistance is also low, the gravity is greater than the viscous resistance and the buoyancy, and G-F-F is greater than 0, so that the ball body sinks in an accelerated manner; as the viscous resistance is gradually increased along with the increase of the moving speed of the sphere, the acceleration of the sphere is smaller and smaller, and as the speed of the sphere is increased, three forces quickly reach an equilibrium state, wherein G is F + F, that is, mg is 6 pi η Rv + ρ gV; if the sphere floats, F-G-F > 0.
The known water pollution detection device is subject to the following gravity: g ═ m u g+m d g; the received buoyancy force: f ═ ρ gV u +ρgV d (ii) a The viscous resistance experienced: f ═ 6 pi η u R u v+6πη d R d v; wherein m is u Indicating the quality of the monitoring host 100; m is d Represents the mass of the ballast 200; v u Representing the volume of the system main unit, V d Represents the volume of the ballast 200; r u Denotes the radius, R, of the monitoring master 100 d Represents the radius of the ballast 200 and v represents the movement speed of the monitoring main unit 100. Based on the above analysis, if the sinking speed of the water pollution detection device is desired to be kept uniform, the gravity should be exactly balanced by the sum of the viscous resistance and the buoyancy, i.e., the resultant force is zero, (m) u g+m d g)-(ρgV u +ρgV d )-(6πη u R u v+6πη d R d V) 0, and the sphere V4/3 π R 3 Bringing in, can find m in an equilibrium state d ＝4/3*ρπ(R u 3 +R d 3 )+[6πv(η u R u +η d R d )/g]-m u . Therefore, the mass of the ballast 200 exceeds m obtained in the above formula d The value may be within a certain range, for example, 1.1m may be selected d The heavy load 200.
In summary, the water pollution detection device provided by the embodiment of the invention uses an unpowered passive measurement method, and can passively measure the conductivity values of the polluted water body at a plurality of vertical layers without applying external power to lift the sensor manually or the like. The traditional water environment measuring instrument is eliminated, a large number of cables are omitted by means of a mode that the sensor probe is connected with the host through the data cable, the sensor is directly arranged on the monitoring host 100, a large number of volumes are saved, the weight is reduced, the carrying is more portable, and the use is more convenient. And the water pollution detection device has a safety precaution mechanism, provides multiple protection functions, and ensures effective and reliable work in the measurement process. Compared with the detection equipment fixedly installed on the underground water monitoring well, the device provided by the embodiment of the invention is more flexible and convenient to use, does not interfere the monitoring well to carry out other work, can quickly and synchronously measure the pollution values of the vertical sectioning lines of a plurality of monitoring points by preparing a plurality of devices, and has the advantages of easy carrying, easy use and high measurement efficiency.
In addition, the water body can be measured by the device, the water body layer number is more, the previous point measurement is changed into line measurement (vertical multi-point measurement is carried out in the sinking process), the fine three-dimensional pollution data of the water body environment in the region can be obtained, scientific research personnel or managers can know the specific conditions more clearly, the water body pollution can be analyzed and depicted more finely and accurately, the device is very suitable for the work of field hydrogeology investigation, water body pollution monitoring and the like, and the sustainable development of the health and the ecological environment of people is guaranteed.
Example two
The embodiment of the invention also provides a water pollution detection method, which is mainly applied to the water pollution detection device provided by the first embodiment of the invention, and the water pollution detection method provided by the embodiment of the invention is specifically described below.
Fig. 3 is a flowchart of a water pollution detection method according to an embodiment of the present invention, where the water pollution detection method is applied to any one of the water pollution detection devices according to the first embodiment, and the method specifically includes the following steps:
and S102, acquiring the current ambient atmospheric pressure value before the pollution detection device is thrown into the water body to be detected.
And step S104, after the pollution detection device is thrown into the water body to be detected, acquiring the conductivity of the water body to be detected and the pressure value borne by the monitoring host machine based on a preset sampling strategy, determining the monitoring water depth of the monitoring host machine based on the pressure value, and sending the monitoring water depth and the conductivity to an upper computer through a communication module.
And S106, after the sampling is determined to be finished, controlling the openable component to be unhooked from the heavy load so as to enable the monitoring host to float up to the water surface independently.
The method for using the water pollution detection device has been described in detail above, and specific reference may be made to the contents in the first embodiment, which is not repeated herein. In the embodiment of the invention, the preset sampling strategy can be measurement according to a specified time interval, and can also be measurement of a specified water depth or a water level burial depth, wherein the water level burial depth is equal to the distance from the water surface to a wellhead reference plus a monitored water depth value. The embodiment of the invention does not specifically limit the preset sampling strategy, and the user can select the preset sampling strategy according to actual requirements.
If the measurement is performed at a specified time interval, for example, once every 1 second, the conductivity is monitored at 1 second intervals continuously during the sinking process of the monitoring host 100; if the specified water depth or the water level burial depth is measured, the cpu may select to trigger the measurement according to the distance of 0.5 m (for example) after determining the monitored water depth of the monitoring host 100, that is, the conductivity will be measured every time the monitoring host 100 descends 0.5 m.
The water pollution detection device can collect and store the water quality conditions of the whole vertical sectioning line layering and multiple points in the process of sinking in water. When the water body is dropped to the bottom of the water body, the water pollution detection device keeps a static state, the pressure value monitored by the pressure detector 400 is not changed any more at the moment, namely, the water pollution detection device is in a relatively stable state, and the layered multi-point measurement of the water body to be detected by the water pollution detection device is finished. At this time, the monitoring host 100 enters a disengaged return mode, and the central processing unit controls the openable component 500 to be disengaged from the heavy-duty object 200, so that the monitoring host floats up passively according to the previous sinking trajectory.
In an alternative embodiment, the water pollution detection method further comprises the following steps:
before the monitoring host 100 floats to the water surface, if the variation of the monitored water depth within the first time period is determined not to exceed the first threshold, a vibration instruction is sent to the vibration motor so as to enable the vibration motor to vibrate.
That is, if the central processing unit monitors that the underwater monitoring water depth of the monitoring host 100 is relatively stable, it cannot be determined whether the monitoring host encounters an obstacle or reaches the water bottom, at this time, the vibration mode is started, and if the obstacle exists, the obstacle can be got rid of through vibration; it is also possible to verify whether the water bottom is reached by vibrating.
Specifically, the water pollution detection method further comprises the following steps:
before the openable component 500 is hooked with the heavy object 200, and after vibration of the vibration motor is finished, acquiring the current monitoring water depth of the monitoring host 100; if the difference between the current monitored water depth and the monitored water depth before the vibration of the vibration motor does not exceed the first threshold value, it is determined that the monitoring host 100 is located at the water bottom.
The openable and closable component 500 is not hooked with the heavy object 200, which indicates that the monitoring host 100 has not finished detection, the monitoring host 100 should be in a sinking stage, if the variation of the monitored water depth within the first time period in the process does not exceed the first threshold, the vibration motor will start to vibrate, and if the monitored water depth of the monitoring host 100 does not change much before the vibration (the difference does not exceed the first threshold) after the vibration is finished, it is determined that the monitoring host 100 is located at the bottom of the water. If the monitored water depth of the monitoring main machine 100 continues to change after the vibration is finished, the vibration is actually hindered before.
In an alternative embodiment, the water pollution detection method further comprises the following steps:
the conductivity detector 300 and the pressure detector 400 in the monitoring mainframe 100 are calibrated before the pollution detection device is thrown into the water body to be measured.
In particular, calibration of conductivity detector 300 and pressure detector 400 may ensure accuracy of the measurement data. If the conductivity detector 300 employs electrodeless conductivity sensors, each electrodeless sensor has a unique zero point, which provides the best measurement accuracy after calibration. It should be noted that in calibration, the sensor should be placed in air at 25 ℃. + -. 2 ℃ and it must be ensured that the sensor is dry and clean.
If a voltage-type electrodeless conductivity sensor is adopted, the calibration method can refer to the following steps:
1) firstly, zeroing, electrifying after the wiring meter is connected, and adjusting a zeroing potentiometer to enable the value output by the voltmeter to be as follows: 0 +/-0.1 mV.
2) Then the gain is adjusted, in the ring hole of the sensor, through a precision resistor of 1000 Ω (for example), then the head and the tail are closed (refer to the detection diagram of the voltage type electrodeless conductivity sensor provided in fig. 4), the gain potentiometer is adjusted by rotation, so that the output value of the voltmeter is: 427.0 + -0.1 mV (corresponding to 1000 Ω, for example).
3) And then repeatedly zeroing, opening the penetrated 1000 omega resistor, and adjusting a zeroing potentiometer to enable the value output by the voltmeter to be as follows: 0 +/-0.1 mV.
4) And then the gain is adjusted repeatedly, the penetrated resistor is closed, and the gain potentiometer is adjusted in a rotating mode, so that the value output by the voltmeter is as follows: 427.0. + -. 0.1 mV.
And (4) finishing the calibration, wherein the measured conductivity of the voltage type electrodeless conductivity sensor is equal to (voltage output mV value/2000 mV) range end value.
If a current ring type electrodeless conductivity sensor is adopted, the calibration method can refer to the following steps:
1) the wire is connected according to the wiring meter, and the ammeter and the sampling resistor R (less than 500 omega) are connected to GND in series.
2) And (4) zeroing, and after the system is powered on, adjusting the zeroing potentiometer to enable the value of the ammeter to be 4.000 +/-0.001 mA (corresponding to 500 omega for example).
3) Gain adjustment, in the ring hole of the sensor, through a precision resistor of 1000 Ω, then closing head and tail (refer to the current ring type electrodeless conductivity sensor detection diagram provided in fig. 5), and adjusting the gain potentiometer by rotation to make the value of the ammeter 7.416 ± 0.001mA (corresponding to 1000 Ω as an example).
4) And (4) repeatedly zeroing, opening the through resistor, and adjusting the zeroing potentiometer after electrifying to enable the value of the ammeter to be 4.000 +/-0.001 mA.
5) The gain is repeatedly adjusted, the resistor is closed, the gain potentiometer is adjusted in a rotating mode, and the value of the ammeter is 7.416 +/-0.001 mA.
6) And (5) removing the resistor and finishing calibration.
And (4) finishing the calibration, wherein the measured conductivity of the current loop type electrodeless conductivity sensor is [ (current output mA value-4 mA)/16mA ]. range end value.
EXAMPLE III
Referring to fig. 6, an embodiment of the present invention provides an electronic device, including: a processor 60, a memory 61, a bus 62 and a communication interface 63, wherein the processor 60, the communication interface 63 and the memory 61 are connected through the bus 62; the processor 60 is arranged to execute executable modules, such as computer programs, stored in the memory 61.
The Memory 61 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 63 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
The bus 62 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 6, but that does not indicate only one bus or one type of bus.
The memory 61 is used for storing a program, the processor 60 executes the program after receiving an execution instruction, and the method executed by the apparatus defined by the process disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 60, or implemented by the processor 60.
The processor 60 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 60. The Processor 60 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory 61, and the processor 60 reads the information in the memory 61 and, in combination with its hardware, performs the steps of the above method.
The water pollution detection apparatus, the water pollution detection method, and the computer program product of the electronic device provided in the embodiments of the present invention include a computer-readable storage medium storing a processor-executable nonvolatile program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiments, and specific implementation may refer to the method embodiments, and will not be described herein again.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A water contamination detection apparatus, comprising: monitoring the host and the heavy load; the monitoring host comprises a conductivity detector, a pressure detector, a central processing unit, a communication module and an openable and closable assembly;
the openable and closable assembly is positioned at the bottom of the monitoring host machine and is used for hanging the heavy load;
the conductivity detector is positioned on the shell of the monitoring host machine and used for measuring the conductivity of the water body to be measured;
the pressure detector is positioned on the shell of the monitoring host machine and used for measuring the pressure value born by the monitoring host machine;
the communication module is positioned in the shell of the monitoring host and used for communicating with an upper computer;
the central processing unit is respectively connected with the conductivity detector, the pressure detector, the communication module and the openable component, and is used for determining the monitoring water depth of the monitoring host machine based on the pressure value measured by the pressure detector, transmitting the monitoring water depth and the conductivity to the upper computer through the communication module, and controlling the openable component and the heavy-load object to be detached after determining that sampling is completed, so that the monitoring host machine can float up to the water surface independently.
2. The water pollution detecting device according to claim 1, wherein said monitoring host further comprises: a temperature sensor;
the temperature sensor is positioned on the shell of the monitoring host machine, is connected with the central processing unit, and is used for measuring the ambient temperature of the monitoring host machine and sending the ambient temperature to the central processing unit;
the central processor is further configured to correct the conductivity based on the ambient temperature.
3. The water pollution detecting device according to claim 1, wherein said monitoring host further comprises: a vibration motor;
the vibration motor is positioned in the shell of the monitoring host machine, is connected with the central processing unit and is used for vibrating under the control of the central processing unit;
the central processing unit is used for sending a vibration instruction to the vibration motor to enable the vibration motor to vibrate if the fact that the variation of the monitored water depth within a first time period is not larger than a first threshold value is determined before the monitoring host floats to the water surface.
4. The water pollution detecting device according to claim 1, wherein said monitoring host further comprises: a warning module;
the warning module is positioned outside the shell of the monitoring host, is connected with the central processing unit and is used for starting sound and light alarm under the control of the central processing unit;
the central processing unit is used for sending a starting instruction to the warning module when the monitoring host is determined to be located on the water surface, so that the warning module can give out sound and light alarm.
5. The water pollution detection device of claim 1, wherein a threading hole is further formed in the housing of the monitoring main unit.
6. A water pollution detecting method applied to the water pollution detecting apparatus according to any one of claims 1 to 5, comprising:
before the pollution detection device is thrown into a water body to be detected, acquiring the current ambient atmospheric pressure value;
after the pollution detection device is thrown into a water body to be detected, acquiring the conductivity of the water body to be detected and a pressure value borne by a monitoring host machine based on a preset sampling strategy, determining the monitoring water depth of the monitoring host machine based on the pressure value, and sending the monitoring water depth and the conductivity to an upper computer through a communication module;
after the sampling is determined to be completed, the openable component is controlled to be unhooked from the heavy-load object, so that the monitoring host can float up to the water surface automatically.
7. The water pollution detection method according to claim 6, further comprising:
before the monitoring host floats to the water surface, if the variation of the monitoring water depth within a first time period is determined not to exceed a first threshold value, a vibration instruction is sent to a vibration motor so that the vibration motor vibrates.
8. The water pollution detection method according to claim 7, further comprising:
before the openable component is hooked with the heavy-load object, and after vibration of the vibration motor is finished, acquiring the current monitoring water depth of the monitoring host;
and if the difference value between the current monitored water depth and the monitored water depth before the vibration of the vibrating motor does not exceed the first threshold value, determining that the monitoring host is positioned at the water bottom.
9. The water pollution detection method according to claim 7, further comprising:
and before the pollution detection device is thrown into the water body to be detected, calibrating a conductivity detector and a pressure detector in the monitoring host.
10. An electronic device comprising a memory, a processor, said memory having stored thereon a computer program operable on said processor, wherein the processor, when executing said computer program, performs the steps of the water pollution detection method of any of claims 6 to 9.
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