CN114594224A - Micro-station water quality monitoring method and system - Google Patents
Micro-station water quality monitoring method and system Download PDFInfo
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- CN114594224A CN114594224A CN202210499479.2A CN202210499479A CN114594224A CN 114594224 A CN114594224 A CN 114594224A CN 202210499479 A CN202210499479 A CN 202210499479A CN 114594224 A CN114594224 A CN 114594224A
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
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- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
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Abstract
The invention is suitable for the field of computers, and provides a micro-station water quality monitoring method and a micro-station water quality monitoring system, wherein the method comprises the following steps: after a drainage switch of a water sample storage communicated with an outlet of the sampling device is controlled to be opened, a tap water supply electric control valve connected with a sampling channel of the sampling device is opened, and the valve is closed after the opening time of the valve reaches a preset time; after the tap water supply electric control valve is opened, determining working parameters of the gas supply equipment according to the amount of residues in the sampling channel, and controlling the gas supply equipment connected with the sampling channel of the sampling equipment to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to be within a preset range, wherein the tap water supply electric control valve has the beneficial effects that: the error is comprehensively reduced from the multiple links of sampling monitoring, the automation degree is high, and the water quality monitoring data is ensured to be attached to a true value.
Description
Technical Field
The invention belongs to the technical field of computers, and particularly relates to a micro-station water quality monitoring method and system.
Background
Human beings can not leave water in life and production activities, the quality of life drinking water quality is closely related to human health, water quality monitoring is the most important work foundation and technical support for water resource protection, accurate, timely and reliable water quality monitoring data is the foundation for water resource protection, water quality monitoring meets the requirements of water resource protection supervision and management, the modernization and automation construction pace must be accelerated, and the water quality monitoring information acquisition capacity is improved, so that the construction of a water quality automatic monitoring station is a trend, physical, biological or chemical modern scientific and technological means is applied to objective environment, water body dirt and related composition identification and testing are intermittently or continuously carried out, qualitative, quantitative and systematic description is carried out through detection or experiments of instruments, and accurate environment quality evaluation is called as water quality monitoring.
The main water quality monitoring items can be divided into two categories: one is a comprehensive index reflecting the water quality conditions, such as temperature, chroma, turbidity, pH value, conductivity, suspended matters, dissolved oxygen, chemical oxygen demand, biological oxygen demand and the like; the other is the monitoring of toxic substances, such as phenol, lead, mercury, organic pesticides and the like, in order to objectively evaluate the water quality conditions of rivers and oceans, besides the monitoring items, the flow velocity and the flow rate are sometimes measured, the monitoring items are selected according to the environmental quality standard of photo-closed water, and the main indexes of a water quality monitoring system can be determined.
However, the automation degree of the existing water quality monitoring in the micro-station is not high, and when multiple sampling is involved, the previous sampling often has a large influence on the next sampling, which is undoubtedly not beneficial to the reduction of errors.
Disclosure of Invention
The embodiment of the invention aims to provide a micro-station water quality monitoring method and a micro-station water quality monitoring system, and aims to solve the problems in the background art.
The embodiment of the invention is realized in such a way that, on one hand, the method for monitoring the water quality of the micro-station comprises the following steps:
after a drainage switch of a water sample storage communicated with an outlet of the sampling device is controlled to be opened, a tap water supply electric control valve connected with a sampling channel of the sampling device is opened, and the valve is closed after the opening time of the valve reaches a preset time;
after the tap water supply electric control valve is opened, determining working parameters of the gas supply equipment according to the amount of residues in the sampling channel, and controlling the gas supply equipment connected with the sampling channel of the sampling equipment to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to be within a preset range;
controlling the lifting equipment to align an inlet of the sampling equipment to a target water taking point, controlling the sampling equipment to extract a water sample and flow through the water sample storage, and keeping the lifting height of the lifting equipment unchanged in position in single sampling;
controlling a sampling device to extract a water sample into a water sample storage according to a preset sampling mode, controlling a detection device to detect the water sample in the water sample storage after the calculated time reaches a preset standing time, acquiring detection data, and displaying the detection data on a human-computer interaction interface;
the control setting is opened at the terminal negative pressure adsorption member of earial drainage switch, with the sampling equipment cooperation after starting to realize the residual water sample in discharge sampling passageway and the water sample memory, and then make the air humidity of sampling equipment export be less than the air humidity of water sample memory export.
As a further scheme of the present invention, the sampling mode includes single sampling and mixed sampling, wherein the single sampling includes sampling once every set time interval, and water is centrally supplied to the water sample storage after a plurality of times of sampling, and the mixed sampling includes sampling for a plurality of times within the same set time interval, and water is centrally supplied to the water sample storage after mixing the samples.
As a further scheme of the present invention, after the drain switch of the water sample storage communicated with the outlet of the sampling device is controlled to be opened, the tap water supply electrically controlled valve connected to the sampling channel of the sampling device is opened, and the opening time of the tap water supply electrically controlled valve is controlled to be closed after reaching the preset time period, specifically comprising:
controlling the opening of a drainage port of the water sample storage to be reduced;
opening an electric control valve which is used for controlling opening and closing between the sampling device and a tap water pipeline at an inlet position;
and controlling the electric control valve to be closed after being opened for a preset time.
As a further aspect of the present invention, after the tap water supply electric control valve is opened, determining a working parameter of the gas supply device according to the amount of the residue in the sampling channel, and controlling the gas supply device connected to the sampling channel of the sampling device to work based on the working parameter, so as to reduce the amount of the residue in the sampling channel to a preset range specifically includes:
after the tap water supply electric control valve is opened, the detection equipment is controlled to be opened so as to detect the turbidity of the water body in the sampling channel;
when the turbidity of the water body at the tail end of the sampling channel is detected to be larger than that of tap water and is not changed any more, controlling valves on a plurality of air surge pipelines which are communicated with the interior of the sampling channel at intervals to be opened, and simultaneously starting air supply equipment for supplying air to the plurality of air surge pipelines;
and when the turbidity of the water body in the sampling channel is detected to be reduced to a preset threshold value and no longer changes within a preset time period, controlling the valve on the air surge pipeline and the air supply equipment to be closed.
As a further scheme of the present invention, after the lifting device is controlled to align the inlet of the sampling device with the target water taking point, the lifting device is controlled to extract a water sample and flow through the water sample storage, and the step of keeping the lifting height of the lifting device unchanged in a single sampling specifically comprises:
controlling lifting equipment to extend an inlet of sampling equipment to a specified height in a water taking point;
controlling the sampling equipment to be started so that a water sample can fully moisten the sampling channel and then flow out after flowing through the water sample storage;
and controlling the sampling device to be closed.
As a further scheme of the present invention, the controlling the sampling device to extract the water sample into the water sample storage according to the preset sampling mode, after the calculated time length reaches the preset standing time length, controlling the detection device to detect the water sample in the water sample storage, acquiring the detection data, and displaying the detection data on the human-computer interaction interface specifically includes:
adjusting the sampling equipment to a corresponding sampling mode according to an input instruction, and extracting a water sample into a water sample storage;
calculating the time length reaching the preset standing time length;
and controlling the detection equipment to detect the water sample in the water sample storage, acquiring detection data, and displaying the detection data on a human-computer interface by using a chart.
As a further scheme of the present invention, the controlling the opening of the negative pressure adsorption piece arranged at the end of the drain switch, and the negative pressure adsorption piece is matched with the sampling device after the starting to discharge the residual water sample in the sampling channel and the water sample storage, so that the air humidity at the outlet of the sampling device is lower than the air humidity at the outlet of the water sample storage specifically comprises:
controlling the negative pressure adsorption piece to be communicated with a water sample storage at the tail end of the sampling equipment;
controlling the lifting equipment to move an inlet of the sampling equipment into the air, and controlling the negative pressure adsorption piece and the sampling equipment to be opened;
respectively controlling the humidity sensors to work so as to detect the humidity changes of the air at the outlet of the sampling device and the drain outlet of the water sample storage;
when the humidity of the air at the outlet of the sampling device is detected to be reduced to a first threshold value content, controlling the sampling device to be closed;
and when the humidity of the outlet air of the water sample storage is detected to be reduced to a second threshold content, controlling the negative pressure adsorption piece to be closed, wherein the first threshold content is lower than the second threshold content.
As a further aspect of the present invention, the method further comprises:
acquiring weather condition data of a sampling place in real time;
and when the weather condition data shows that the sampling place has rainstorm or flood, starting a bypass filtering channel, wherein the bypass filtering channel is used for filtering a water sample entering through an inlet of the sampling equipment.
As a further scheme of the present invention, the central control unit is configured to receive the detection data sent by the detection device, and the communication mode between the central control unit and the detection device is one or more of RS485, RS232, bluetooth, wifi, 4G, and 5G.
As a further aspect of the present invention, in another aspect, a micro-station water quality monitoring system includes:
the flushing module is used for controlling a tap water supply electric control valve connected with a sampling channel of the sampling device to be opened after a drainage switch of a water sample storage communicated with an outlet of the sampling device is opened, and controlling the opening time of the tap water supply electric control valve to be closed after the opening time reaches a preset time;
the gas surge module is used for determining working parameters of the gas supply equipment according to the amount of residues in the sampling channel after the tap water supply electric control valve is opened, and controlling the gas supply equipment connected with the sampling channel of the sampling equipment to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to be within a preset range;
the sample module is used for controlling the lifting equipment to align an inlet of the sampling equipment to a target water taking point, controlling the sampling equipment to extract a water sample and flow through the water sample storage, and keeping the lifting height of the lifting equipment unchanged in position in single sampling;
the detection module is used for controlling the sampling equipment to extract a water sample into the water sample storage according to a preset sampling mode, controlling the detection equipment to detect the water sample in the water sample storage after the calculated time reaches a preset standing time, acquiring detection data and displaying the detection data on a human-computer interaction interface;
and the discharge module is used for controlling the negative pressure adsorption piece arranged at the tail end of the drainage switch to be opened and matched with the sampling equipment after being started so as to discharge the residual water sample in the sampling channel and the water sample storage device and further ensure that the air humidity of the outlet of the sampling equipment is lower than the air humidity of the outlet of the water sample storage device.
According to the micro-station water quality monitoring method and system provided by the embodiment of the invention, after the drainage switch of the water sample storage communicated with the outlet of the sampling device is opened, the tap water supply electric control valve connected with the sampling channel of the sampling device is opened, so that the error of the last water sample on the current water sample is reduced; after a tap water supply electric control valve is opened, determining working parameters of the gas supply equipment according to the amount of residues in a sampling channel, and controlling the gas supply equipment connected with the sampling channel of the sampling equipment to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to be within a preset range; the negative pressure adsorption piece arranged at the tail end of the drainage switch is opened through control and matched with the sampling equipment after being started to discharge residual water samples in the sampling channel and the water sample storage, so that the air humidity of the outlet of the sampling equipment is lower than that of the outlet of the water sample storage, the residual water samples remained in the sampling equipment are discharged as far as possible, and the sampling equipment can be conveniently and mainly thoroughly cleaned and the accuracy of next sampling is guaranteed.
Drawings
FIG. 1 is an operation diagram of relevant equipment of a micro-station water quality monitoring method.
Fig. 2 is a main flow chart of a water quality monitoring method of a micro-station.
Fig. 3 is a flow chart of opening the tap water supply electric control valve connected with the sampling channel of the sampling device and controlling the opening time to be closed after the preset time.
FIG. 4 is a flow chart for controlling operation of a gas supply device connected to a sampling channel of a sampling device based on the operating parameters.
Fig. 5 is a flowchart for controlling the discharging device to discharge the residual water sample sampled last time from the outlet of the sampling device.
Fig. 6 is a main structural diagram of a micro-station water quality monitoring system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
The invention provides a micro-station water quality monitoring method and a micro-station water quality monitoring system, which solve the technical problem in the background technology.
As shown in fig. 1 and fig. 2, a main flow chart of a micro-station water quality monitoring method according to an embodiment of the present invention is a micro-station water quality monitoring method, including:
step S10: after a drainage switch of a water sample storage communicated with an outlet of the sampling device is controlled to be opened, a tap water supply electric control valve connected with a sampling channel of the sampling device is opened, and the valve is closed after the opening time of the valve reaches a preset time;
step S11: after the tap water supply electric control valve is opened, determining working parameters of the gas supply equipment according to the amount of residues in the sampling channel, and controlling the gas supply equipment connected with the sampling channel of the sampling equipment to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to be within a preset range;
step S12: controlling the lifting equipment to align an inlet of the sampling equipment to a target water taking point, controlling the sampling equipment to extract a water sample and flow through the water sample storage, and keeping the lifting height of the lifting equipment unchanged in position in single sampling;
step S13: controlling a sampling device to extract a water sample into a water sample storage according to a preset sampling mode, controlling a detection device to detect the water sample in the water sample storage after the calculated time reaches a preset standing time, acquiring detection data, and displaying the detection data on a human-computer interaction interface;
and step S14: the control setting is opened at the terminal negative pressure adsorption member of earial drainage switch, with the sampling equipment cooperation after starting to realize the residual water sample in discharge sampling passageway and the water sample memory, and then make the air humidity of sampling equipment export be less than the air humidity of water sample memory export.
It is understood that S10-S14 are loop steps, i.e., S14 may be performed before the next S10 in a continuous sampling.
Specifically, this implementation is when implementing, and the back is opened through the earial drainage switch of the water sample memory that is linked together with the export of sampling equipment, opens the running water supply electric control valve who links to each other with the sampling channel of sampling equipment, washs the aim at of pipeline with the running water: the method comprises the steps of cleaning the water sample with tap water, reducing errors brought to the water sample by the last water sample, determining working parameters of an air supply device according to the amount of residues in a sampling channel after an electric control valve for supplying water to the tap water is opened, controlling the air supply device connected with the sampling channel of the sampling device to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to a preset range, controlling the sampling device to extract the water sample to flow through a water sample storage after an inlet of the sampling device is aligned to a target water taking point, keeping the lifting height of the lifting device unchanged in a single sampling, cleaning a pipeline, preventing the tap water from diluting the real water sample, facilitating the reduction of the errors, ensuring that detection data displayed on a man-machine interaction interface can be close to a true value, and matching the water sample device after the detection data is started by controlling a negative pressure adsorption piece arranged at the tail end of a drainage switch to be opened, with the residual water sample in realizing discharging sampling channel and water sample memory, and then make the air humidity of sampling device export be less than the air humidity of water sample memory export, the residual water sample of remaining in sampling device is discharged as far as possible, realizes mainly the thorough cleanness of sampling device and guarantees the accuracy of next sampling.
To specific sampling mode, when in the actual application, sampling mode includes single sampling and mixed sampling, wherein the single sampling includes that the every interval sets for the time sampling once, concentrates the water supply to water sample memory after sampling a plurality of times, mixed sampling includes that multiple sampling in the same interval of setting for time, mixes the back with the sampling and concentrates the water supply to water sample memory.
Specifically, single sampling: generally, water is collected once in 1 hour, and then water is supplied once;
mixing and sampling: collecting water for multiple times within 1 hour, and mixing the water samples to finally supply water for one time.
As shown in fig. 3, as a preferred embodiment of the present invention, after the drain switch of the water sample storage communicated with the outlet of the sampling device is turned on, the tap water supply electrically controlled valve connected to the sampling channel of the sampling device is turned on, and the turning-off after the turning-on time reaches the preset time period specifically includes:
step S101: controlling the opening of a drainage port of the water sample storage to be reduced;
step S102: opening an electric control valve which is used for controlling opening and closing between the sampling device and a tap water pipeline at an inlet position;
step S103: and controlling the electric control valve to be closed after being opened for a preset time.
This embodiment is when using, will with the import position department of sampling equipment and the water pipe between be used for controlling the electric control valve who opens and close to open, begin to wash, the error that this water sample brought is given to the water sample last time of minimizing.
As shown in fig. 4, as a preferred embodiment of the present invention, after the tap water supply electrically controlled valve is opened, determining a working parameter of the air supply device according to the amount of the residue in the sampling channel, and controlling the air supply device connected to the sampling channel of the sampling device to work based on the working parameter, so as to reduce the amount of the residue in the sampling channel to be within a preset range specifically includes:
step S111: after the tap water supply electric control valve is opened, the detection equipment is controlled to be opened so as to detect the turbidity of the water body in the sampling channel;
step S112: when the turbidity of the water body at the tail end of the sampling channel is detected to be larger than that of tap water and is not changed any more, controlling valves on a plurality of air surge pipelines which are communicated with the interior of the sampling channel at intervals to be opened, and simultaneously starting air supply equipment for supplying air to the plurality of air surge pipelines;
step S113: and when the turbidity of the water body in the sampling channel is detected to be reduced to a preset threshold value and no longer changes within a preset time period, controlling the valve on the air surge pipeline and the air supply equipment to be closed.
Specifically, the air supply equipment generates bubbles, the air surge pipelines are provided with a plurality of sampling pipelines which are perpendicular to the sampling pipelines, and the adjacent air surge pipelines are arranged in a staggered mode at intervals.
In the application of the embodiment, because the residue obtained after the last sampling inevitably contains some soluble and indissoluble impurities or easily precipitated organic and/or inorganic impurities, the sampling channel is flushed by tap water to remove a part of the impurities, but a part of the impurities are always attached to the inner wall of the pipeline of the sampling channel, and some impurities may be taken away when a water sample passes through the pipeline, so that subsequent sampling is affected if the impurities are not removed, and subsequent errors caused by the last sampling can be caused, and if the impurities are removed by flushing for a long time at high pressure, but considering the cost and the limitation of flushing, the gas supply equipment adopts a mode of combining gas surge and water flushing, so that tens of thousands of tiny bubbles are generated in flowing tap water by the gas supply equipment, the bubbles are continuously generated, and the high-pressure bubbles are broken when colliding with the inner wall of the pipeline, thus, the instant high pressure is continuously generated and continuously impacts the surface of the object like a series of small 'explosions', so that the dirt on the inner surface and the rugged positions of the pipeline is rapidly peeled off, and the aim of rapid purification is fulfilled.
As a preferred embodiment of the present invention, the steps further include: and controlling the lifting equipment to align the inlet of the sampling equipment to a target water taking point, controlling the sampling equipment to extract a water sample and flow the water sample through the water sample storage, and keeping the lifting height of the lifting equipment unchanged in the position in single sampling.
As a preferred embodiment of the present invention, the controlling the sampling device to extract the water sample into the water sample storage according to a preset sampling mode, after the calculated time length reaches the preset standing time length, controlling the detection device to detect the water sample in the water sample storage, acquiring the detection data, and displaying the detection data on the human-computer interaction interface specifically includes:
step S131: adjusting the sampling equipment to a corresponding sampling mode according to an input instruction, and extracting a water sample into a water sample storage;
step S132: calculating the time length reaching the preset standing time length;
step S133: and controlling the detection equipment to detect the water sample in the water sample storage, acquiring detection data, and displaying the detection data on a human-computer interface by using a chart.
In the application of the embodiment, the acquired detection parameters at least include pH, temperature, dissolved oxygen, conductivity and turbidity, the five parameters are called as water quality detection five parameters, real-time data, historical curves, historical data, alarm logs, operation logs, parameter settings and the like can be checked through a human-computer interface, and the parameters are specifically expressed in a mode of data tables, curves, column diagrams and the like.
As shown in fig. 5, as a preferred embodiment of the present invention, the controlling the negative pressure adsorption element arranged at the end of the drain switch to be opened and to be matched with the sampling device after being started to discharge the residual water sample in the sampling channel and the water sample storage, so that the humidity of the air at the outlet of the sampling device is lower than the humidity of the air at the outlet of the water sample storage specifically includes:
step S141: controlling the negative pressure adsorption piece to be communicated with a water sample storage at the tail end of the sampling equipment;
step S142: controlling the lifting equipment to move an inlet of the sampling equipment into the air, and controlling the negative pressure adsorption piece and the sampling equipment to be opened;
step S143: respectively controlling the humidity sensors to work so as to detect the humidity changes of the air at the outlet of the sampling device and the drain outlet of the water sample storage;
step S144: when the humidity of the air at the outlet of the sampling device is detected to be reduced to a first threshold value content, controlling the sampling device to be closed;
step S145: and when the humidity of the outlet air of the water sample storage is detected to be reduced to a second threshold content, controlling the negative pressure adsorption piece to be closed, wherein the first threshold content is lower than the second threshold content.
It can be understood that after each sampling, a residual water sample exists in the sampling channel comprising the sampling device after power failure, in view of the complex structure of some water sample storages and the integration structure of the water sample storages and the detection device, therefore, partial water sample can remain in the water sample storages, when the sampling device and the negative pressure adsorption piece are started, the pump of the sampling device can idle for a certain time by starting the sampling device, the residual water in the sampling device can be taken out through the air, on the other hand, the operation of the air in the sampling channel and the water sample remaining between the pump of the sampling channel and the outlet of the water sample storage can be promoted by the negative pressure adsorption piece arranged at the tail end of the water sample storage, before the water content in the sampling channel is reduced to a certain degree, the air humidity of the outlet of the water sample storage is theoretically always greater than the outlet air humidity of the sampling device, therefore, the sampling device and the negative pressure adsorption piece are closed successively based on the first threshold content and the second threshold content, and residual moisture remained in the pump of the sampling device and in the pipeline can be effectively discharged.
As a preferred embodiment of the present invention, the method further comprises:
step S201: acquiring weather condition data of a sampling place in real time;
step S202: and when the weather condition data shows that the sampling place has rainstorm or flood, starting a bypass filtering channel, wherein the bypass filtering channel is used for filtering a water sample entering through an inlet of the sampling equipment.
This embodiment is when using, and the purpose that sets up the bypass filtering channel is that, when the condition that has a large amount of silt, miscellaneous leaf of dry branches etc. such as takes place rainstorm, flood, utilize bypass filtering channel to carry out a prefiltration to the water sample, with a large amount of silt, miscellaneous leaf of dry branches etc. filtering, reentrant normal aforementioned sample and detection step.
As a preferred embodiment of the present invention, the central control unit is used for receiving the detection data sent by the detection device, and the communication mode between the central control unit and the detection device is one or more of RS485, RS232, bluetooth, wifi, 4G, and 5G.
The communication interface supports various communication types, supports a wide range of working current (4-20 mA) and working voltage of 0-10V (or 0-5V) and the like, and various abundant interfaces can meet various field environments.
The central control unit has the following advantages: the data transmitted by the water quality monitoring unit has a data filtering function; integrating data, such as finding maxima, minima, averages, sums over minutes, 1 hour, 1 day; the HJ212-2017 protocol, which supports the standard, has the following defects compared with the prior art: the number of IO controlled by the PLC is limited, and the water collection system is simple and single; if the IO point needs to be expanded, the cost is high, the wiring is also complex, the data acquisition mode is single, and if other modes need to be added, the module also needs to be expanded, so that the use is inconvenient; the mechanism of the PLC determines that the PLC is not good at data processing and cannot perform complex processing on data; because PLC is not good at data processing, a data uploading protocol is completed by an industrial personal computer, two programs are not in one system, and management tasks, real-time performance and the like cannot be processed in time; the invention has high cost and complex system, and can meet various field environments, facilitate data processing and ensure the accuracy of data by adopting various abundant interfaces.
As another preferred embodiment of the present invention, as shown in fig. 6, in another aspect, a micro-station water quality monitoring system comprises:
the flushing module 100 is used for controlling a tap water supply electric control valve connected with a sampling channel of the sampling device to be opened after a drainage switch of a water sample storage communicated with an outlet of the sampling device is opened, and controlling the opening time of the tap water supply electric control valve to be closed after the opening time reaches a preset time;
the gas surge module 200 is used for determining working parameters of the gas supply equipment according to the amount of residues in the sampling channel after the tap water supply electric control valve is opened, and controlling the gas supply equipment connected with the sampling channel of the sampling equipment to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to be within a preset range;
the sample module 300 is used for controlling the lifting equipment to align an inlet of the sampling equipment to a target water taking point, controlling the sampling equipment to extract a water sample and flow through the water sample storage, and keeping the lifting height of the lifting equipment unchanged in position in single sampling;
the detection module 400 is used for controlling the sampling equipment to extract a water sample into the water sample storage according to a preset sampling mode, controlling the detection equipment to detect the water sample in the water sample storage after the calculated time reaches a preset standing time, acquiring detection data, and displaying the detection data on a human-computer interaction interface;
and the surplus module 500 is used for controlling the negative pressure adsorption piece arranged at the tail end of the drainage switch to be opened and matched with the sampling equipment after being started so as to discharge the residual water sample in the sampling channel and the water sample storage device and further enable the air humidity of the outlet of the sampling equipment to be lower than the air humidity of the outlet of the water sample storage device.
The micro-station water quality monitoring system provided by the embodiment of the invention can be adapted to various sensors by flexibly using various communication means, and has wider compatibility; the water collecting and distributing unit can be widely suitable for various working conditions due to various connecting means with the central control unit, can be suitable for different water quality environments due to the independent water collecting and distributing unit, and can not only be suitable for unique environments like the traditional water collecting unit.
The invention provides a micro-station water quality monitoring method in the above embodiment, and provides a micro-station water quality monitoring system based on the micro-station water quality monitoring method, after a drainage switch of a water sample storage communicated with an outlet of a sampling device is opened, a tap water supply electric control valve connected with a sampling channel of the sampling device is opened, and the purpose of cleaning a pipeline by tap water is as follows: the method comprises the steps of cleaning the water sample with tap water, reducing errors brought to the water sample by the last water sample, determining working parameters of an air supply device according to the amount of residues in a sampling channel after an electric control valve for supplying water to the tap water is opened, controlling the air supply device connected with the sampling channel of the sampling device to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to a preset range, controlling the sampling device to extract the water sample to flow through a water sample storage after an inlet of the sampling device is aligned to a target water taking point, keeping the lifting height of the lifting device unchanged in a single sampling, cleaning a pipeline, preventing the tap water from diluting the real water sample, facilitating the reduction of the errors, ensuring that detection data displayed on a man-machine interaction interface can be close to a true value, and matching the water sample device after the detection data is started by controlling a negative pressure adsorption piece arranged at the tail end of a drainage switch to be opened, with the residual water sample in realizing discharging sampling channel and water sample memory, and then make the air humidity of sampling device export be less than the air humidity of water sample memory export, the residual water sample of remaining in sampling device of discharging as far as possible can make things convenient for the thorough cleanness of main sampling device and guarantee the accuracy of sampling next time.
In order to load the above method and system to operate successfully, the system may include more or less components than those described above, or combine some components, or different components, in addition to the various modules described above, for example, input/output devices, network access devices, buses, processors, memories, and the like.
The processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like that is the control center for the system and that connects the various components using various interfaces and lines.
The memory may be used to store computer and system programs and/or modules, and the processor may perform the various functions described above by operating or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a program storage area and a data storage area, where the program storage area may store an operating system, an application program required by at least one function (such as an information collection template presentation function, a product information distribution function, and the like), and the like. The storage data area may store data created according to the use of the berth-state display system (e.g., product information acquisition templates corresponding to different product types, product information that needs to be issued by different product providers, etc.), and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card (FlashCard), at least one disk storage device, a flash memory device, or other volatile solid state storage device.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily executed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A micro-station water quality monitoring method is characterized by comprising the following steps:
after a drainage switch of a water sample storage communicated with an outlet of the sampling device is controlled to be opened, a tap water supply electric control valve connected with a sampling channel of the sampling device is opened, and the valve is closed after the opening time of the valve reaches a preset time;
after the tap water supply electric control valve is opened, determining working parameters of the gas supply equipment according to the amount of residues in the sampling channel, and controlling the gas supply equipment connected with the sampling channel of the sampling equipment to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to be within a preset range;
controlling the lifting equipment to align an inlet of the sampling equipment to a target water taking point, controlling the sampling equipment to extract a water sample and flow through the water sample storage, and keeping the lifting height of the lifting equipment unchanged in position in single sampling;
controlling a sampling device to extract a water sample into a water sample storage according to a preset sampling mode, controlling a detection device to detect the water sample in the water sample storage after the calculated time reaches a preset standing time, acquiring detection data, and displaying the detection data on a human-computer interaction interface;
the control setting is opened at the terminal negative pressure adsorption member of earial drainage switch, with the sampling equipment cooperation after starting to realize the residual water sample in discharge sampling passageway and the water sample memory, and then make the air humidity of sampling equipment export be less than the air humidity of water sample memory export.
2. The micro-station water quality monitoring method according to claim 1, wherein the sampling mode comprises single sampling and mixed sampling, wherein the single sampling comprises sampling once every set time interval, water is centrally supplied to the water sample storage after a plurality of times of sampling, and the mixed sampling comprises sampling for a plurality of times within the same set time interval, and water is centrally supplied to the water sample storage after the sampling is mixed.
3. The micro-station water quality monitoring method according to claim 1, wherein the step of controlling the tap water supply electric control valve connected with the sampling channel of the sampling device to be opened after the drain switch of the water sample storage communicated with the outlet of the sampling device is opened, and the step of controlling the valve to be closed after the opening time reaches the preset time specifically comprises the steps of:
controlling the opening of a drainage port of the water sample storage to be reduced;
opening an electric control valve which is used for controlling opening and closing between the sampling device and a tap water pipeline at an inlet position;
and controlling the electric control valve to be closed after being opened for a preset time.
4. The micro-station water quality monitoring method according to claim 1, wherein after the tap water supply electric control valve is opened, working parameters of the gas supply equipment are determined according to the amount of the residues in the sampling channel, and the gas supply equipment connected with the sampling channel of the sampling equipment is controlled to work based on the working parameters, so that the step of reducing the amount of the residues in the sampling channel to be within a preset range specifically comprises the steps of:
after the tap water supply electric control valve is opened, the detection equipment is controlled to be opened so as to detect the turbidity of the water body in the sampling channel;
when the turbidity of the water body at the tail end of the sampling channel is detected to be larger than that of tap water and is not changed any more, controlling valves on a plurality of air surge pipelines which are communicated with the interior of the sampling channel at intervals to be opened, and simultaneously starting air supply equipment for supplying air to the plurality of air surge pipelines;
and when the turbidity of the water body in the sampling channel is detected to be reduced to a preset threshold value and no longer changes within a preset time period, controlling the valve on the air surge pipeline and the air supply equipment to be closed.
5. The micro-station water quality monitoring method according to any one of claims 1 to 4, wherein after controlling the lifting device to align an inlet of the sampling device with a target water taking point, controlling the sampling device to extract a water sample to flow through a water sample storage, and keeping the lifting height of the lifting device unchanged in position in a single sampling specifically comprises:
controlling lifting equipment to enable an inlet of sampling equipment to extend into a specified height in a water taking point;
controlling the sampling equipment to be started so that a water sample can fully moisten the sampling channel and then flow out after flowing through the water sample storage;
and controlling the sampling equipment to be closed.
6. The micro-station water quality monitoring method according to any one of claims 1 to 4, wherein the controlling of the sampling device to extract the water sample into the water sample storage according to a preset sampling mode, the controlling of the detection device to detect the water sample in the water sample storage after the calculated time length reaches a preset standing time length, the obtaining of the detection data, and the displaying of the detection data on the human-computer interaction interface specifically comprise:
adjusting the sampling equipment to a corresponding sampling mode according to an input instruction, and extracting a water sample into a water sample storage;
calculating the time length reaching the preset standing time length;
and controlling the detection equipment to detect the water sample in the water sample storage, acquiring detection data, and displaying the detection data on a human-computer interface by using a chart.
7. The micro-station water quality monitoring method according to claim 1, wherein the controlling of the negative pressure adsorption piece arranged at the tail end of the drain switch to be opened is matched with the sampling device after being started so as to discharge the residual water sample in the sampling channel and the water sample storage, and further the air humidity at the outlet of the sampling device is lower than the air humidity at the outlet of the water sample storage specifically comprises:
controlling the negative pressure adsorption piece to be communicated with a water sample storage at the tail end of the sampling equipment;
controlling the lifting equipment to move an inlet of the sampling equipment into the air, and controlling the negative pressure adsorption piece and the sampling equipment to be opened;
respectively controlling the humidity sensors to work so as to detect the humidity changes of the air at the outlet of the sampling device and the drain outlet of the water sample storage;
when the humidity of the air at the outlet of the sampling device is detected to be reduced to a first threshold value content, controlling the sampling device to be closed;
and when the humidity of the outlet air of the water sample storage is detected to be reduced to a second threshold content, controlling the negative pressure adsorption piece to be closed, wherein the first threshold content is lower than the second threshold content.
8. The micro-station water quality monitoring method according to claim 1, further comprising:
acquiring weather condition data of a sampling place in real time;
and when the weather condition data shows that the sampling place has rainstorm or flood, starting a bypass filtering channel, wherein the bypass filtering channel is used for filtering a water sample entering through an inlet of the sampling equipment.
9. The micro-station water quality monitoring method according to claim 1, wherein a central control unit is used for receiving detection data sent by the detection equipment, and the communication mode between the central control unit and the detection equipment is one or more of RS485, RS232, Bluetooth, wifi, 4G or 5G.
10. A micro-station water quality monitoring system, characterized in that the system comprises:
the flushing module is used for controlling a tap water supply electric control valve connected with a sampling channel of the sampling device to be opened after a drainage switch of a water sample storage communicated with an outlet of the sampling device is opened, and controlling the opening time of the tap water supply electric control valve to be closed after the opening time reaches a preset time;
the gas surge module is used for determining working parameters of the gas supply equipment according to the amount of residues in the sampling channel after the tap water supply electric control valve is opened, and controlling the gas supply equipment connected with the sampling channel of the sampling equipment to work based on the working parameters so as to reduce the amount of the residues in the sampling channel to be within a preset range;
the sample module is used for controlling the lifting equipment to align an inlet of the sampling equipment to a target water taking point, controlling the sampling equipment to extract a water sample and flow through the water sample storage, and keeping the lifting height of the lifting equipment unchanged in position in single sampling;
the detection module is used for controlling the sampling equipment to extract a water sample into the water sample storage according to a preset sampling mode, controlling the detection equipment to detect the water sample in the water sample storage after the calculated time reaches a preset standing time, acquiring detection data and displaying the detection data on a human-computer interaction interface;
and the discharge module is used for controlling the negative pressure adsorption piece arranged at the tail end of the drainage switch to be opened and matched with the sampling equipment after being started so as to discharge the residual water sample in the sampling channel and the water sample storage device and further ensure that the air humidity of the outlet of the sampling equipment is lower than the air humidity of the outlet of the water sample storage device.
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