CN111366212B - Unattended underground water level detector - Google Patents

Unattended underground water level detector Download PDF

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Publication number
CN111366212B
CN111366212B CN202010386464.6A CN202010386464A CN111366212B CN 111366212 B CN111366212 B CN 111366212B CN 202010386464 A CN202010386464 A CN 202010386464A CN 111366212 B CN111366212 B CN 111366212B
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water level
information
water
prediction model
microcontroller
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CN111366212A (en
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张旭虎
刘超
李堃正
孟优
杜垚
王锦彪
杜燕燕
范成博
周志全
彭程
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Hebei Geological Environment Monitoring Institute
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Hebei Geological Environment Monitoring Institute
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/0023—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm with a probe suspended by a wire or thread
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements

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  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

The invention provides an unattended underground water level detector, which comprises: the fixing device is arranged at the upper part in the underground water surveying well or at the upper part in a pre-drilled detection hole for detecting the underground water level; a measuring device mounted on the fixing device; and the microcontroller is arranged in the fixing device, is electrically connected with the measuring device and is also connected with the monitoring terminal through a wireless communication module. According to the unattended underground water level detector, a worker of the monitoring terminal can remotely measure the underground water level information in real time only by transmitting the measuring instruction to the microcontroller through the wireless communication module, so that the inconvenience of the traditional technology for measuring the underground water level is solved, the time consumed for measuring the underground water is reduced, and the underground water level measuring efficiency is further improved.

Description

Unattended underground water level detector
Technical Field
The invention relates to the technical field of water level detection, in particular to an unattended underground water level detector.
Background
The groundwater is an important component of water resources, and is one of important water sources for agricultural irrigation, industrial and mining and cities due to stable water yield and good water quality. However, under certain conditions, changes in groundwater can also cause adverse natural phenomena such as swampiness, salinization, landslide, and ground subsidence. Therefore, it is necessary to measure the water level information of the groundwater.
At present, for the detection of the groundwater level, a worker needs to use a water level detector to measure the groundwater level on site, so that the measurement operation of the groundwater level is very inconvenient, and meanwhile, the worker needs to go to an area where the groundwater is located to measure, so that more measurement time is wasted;
accordingly, an unattended ground water level detector is provided.
Disclosure of Invention
In order to solve the technical problems, the invention provides an unattended underground water level detector which is used for solving the inconvenience that in the traditional technology, workers need to go to an area where underground water is located to measure the water level.
The embodiment of the invention provides an unattended underground water level detector, which comprises:
the fixing device is arranged at the upper part in the underground water surveying well or at the upper part in a pre-drilled detection hole for detecting the underground water level;
a measuring device mounted on the fixing device;
and the microcontroller is arranged in the fixing device, is electrically connected with the measuring device and is also connected with the monitoring terminal through a wireless communication module.
Preferably, the lower end of the fixing device is provided with a first through hole, the measuring device is connected in the fixing device through a lifting driving assembly, and the lifting driving assembly is used for driving the measuring device to enter and exit the fixing device from the first through hole;
the measuring device includes: a water level measuring device.
Preferably, the water level measuring device includes: the lower end of the measuring scale is provided with a water sensor;
or the water level measuring device includes: laser rangefinder module or ultrasonic ranging module.
Preferably, the fixing means comprises: the box body is arranged at the upper part in the underground water surveying well or at the upper part in a pre-drilled detection hole for detecting the underground water level; the lower end of the box body is provided with a first through hole for the measuring device to pass through;
the lift drive assembly includes:
the electric reel is rotatably connected to the top end of the box body through a first connecting bracket;
the two pulleys are connected to the top end of the box body through a second connecting support and are respectively positioned on the left side and the right side of the electric reel;
two direction subassemblies set up left and right sides inner wall in the box and correspond with two pulleys respectively, the direction subassembly includes: the first fixing block is fixedly connected to the inner wall of the left side or the inner wall of the right side of the box body, one side, far away from the inner wall of the box body, of the first fixing block is fixedly connected with a vertical strip-shaped block, and the vertical strip-shaped block is provided with a second vertical through hole;
the pull rope is wound on the electric reel, and two ends of the pull rope are respectively wound on the two pulleys and then penetrate through the upper end and the lower end of the corresponding second vertical through hole;
two ends of the horizontal connecting rod are respectively fixedly connected with two ends of the pull rope;
the side wall of the vertical strip-shaped block is provided with a vertical through groove for the vertical up-and-down motion of the two ends of the horizontal connecting rod, one side of the vertical through groove is communicated with one side, close to each other, of the two vertical strip-shaped blocks, the other side of the vertical through groove is communicated with a corresponding second vertical through hole, and the measuring device is fixedly connected to the lower end of the horizontal connecting rod.
Preferably, the fixing means comprises: the box body is arranged at the upper part in the underground water surveying well or at the upper part in a pre-drilled detection hole for detecting the underground water level;
the lower end of the box body is provided with a first through hole for the measuring device to pass through;
the lift drive assembly includes:
the first gear is a fixed inner gear and is fixedly connected to the top in the box body;
the two second gears are rotatably connected in the box body at intervals left and right and are positioned at the lower part of the first gear, at least one second gear is driven by a driving motor, and the driving motor is electrically connected with the microcontroller;
the left side and the right side of the movable plate are both provided with racks, the racks are in meshing transmission with corresponding second gears, the measuring device is fixedly connected to the lower end of the movable plate, and the movable plate is positioned on the front side of the first gear;
a third gear which is an external gear and moves in inner meshing with the first gear;
and the lower end of the first connecting rod is connected to the upper end of the moving plate, and the upper end of the first connecting rod is rotatably connected to the front side of the third gear through a rotating shaft arranged in the front and at the back.
Preferably, the monitoring terminal receives water level information transmitted by the microcontroller, and when the water level information exceeds water level threshold information preset by the monitoring terminal, the monitoring terminal generates alarm information;
the network side server is used for acquiring precipitation information of the area where the underground water is located through a network when the alarm information and the water level information transmitted by the microcontroller are received, and analyzing whether the water level information exceeds the water level threshold value information and is influenced by the precipitation information;
when the water level information exceeds the water level threshold value information and is influenced by the precipitation information, storing the precipitation information, the water level information and the measurement time information in the same storage space in the network side server;
and when the water level information exceeds the water level threshold value information and is not influenced by the precipitation information, transmitting a measurement instruction to the microcontroller through a remote communication module, and measuring the water level information of the underground water again.
Preferably, the network side server further includes a water level prediction model; the water level prediction model takes the water level information and the precipitation information corresponding to a first measurement time and the water level information corresponding to a second measurement time as input information, takes the precipitation information corresponding to the second measurement time as output information, and repeatedly trains the water level prediction model;
the first measurement time is earlier than the second measurement time;
and the network side server is used for transmitting precipitation information of a time period to be measured and the water level information transmitted by the microcontroller before the time period to be measured to the water level prediction model, so that the acquisition of the water level prediction information of the underground water in the time period to be measured can be realized.
Preferably, the network side server further includes a water level prediction model;
the network side server is further used for transmitting the measurement instruction to the microcontroller through the wireless communication module in the time period to be measured;
the microcontroller is used for transmitting the measurement instruction to the measurement device; the measuring device is used for transmitting the acquired water level information to the microcontroller; the microcontroller is further configured to transmit the water level information obtained by measurement in the time period to be measured to the network side server;
the network side server is used for comparing the water level information obtained by measurement in the time period to be measured with the water level prediction information of the water level prediction model, and obtaining water level error information when the water level error information is greater than a first preset value; and optimizing the water level prediction model according to the water level error information so as to enable the water level prediction information to be closer to the water level information.
Preferably, the optimizing the water level prediction model by the acquired water level error information includes:
step 1: acquiring soil water content information and evaporation capacity information of an area where the underground water is located and distribution information of water storage areas around the underground water, wherein the water level error information is larger than a first preset value;
step 2: the water level prediction model adjusts the water level parameters of the water level prediction model according to the formula (1) according to the soil water content information, the evaporation capacity information and the distribution information of the water storage area around the underground water in the step 1;
Figure GDA0003099221170000041
wherein, the distribution information of the water storage area around the groundwater includes: distance, H, of test point from water storage area within a predetermined range around the test point1For the first adjusted water level parameter of the water level prediction model, H0Is the water level parameter of the water level prediction model before adjustment, pi is a constant, pi is 3.14159, exp is an exponential function with a natural constant e as a base, B is a value corresponding to the evaporation capacity information, A is a value corresponding to the soil water content information0Reference soil moisture content value set for water level prediction model, B0A reference evaporation amount value set for the water level prediction model, ln is a logarithm with a constant e as a base number, η is a preset weight, C1The actual ground water level detected for the first time,
Figure GDA0003099221170000052
the average distance between the test point and a plurality of water storage areas in a preset range around the test point is set;
and step 3: acquiring a water level parameter after previous adjustment of the water level prediction model, comparing the water level parameter after the previous adjustment with currently detected actual water level information to acquire compared water level error information, and when the water level error information is larger than a first preset value;
the parameters of the water level prediction model are adjusted again according to the formula (2), so that the water level prediction model is optimized;
Figure GDA0003099221170000051
n, lg is a base-10 logarithm;
wherein Hi-1For the last adjusted water level parameter of the water level prediction model, HiThe water level parameter after the current adjustment of the water level prediction model is obtained;
and 4, step 4: and (4) repeating the step (3) until the difference value between the water level parameter after the previous adjustment of the water level prediction model and the current actual water level information is smaller than a first preset value.
Preferably, the wireless communication module comprises one or more of a 5G communication module, an NB-loT communication module and a ZigBee communication module.
Preferably, the microcontroller further comprises a power supply unit; the power supply unit is used for supplying power to the microcontroller, the measuring device and the wireless communication module;
the power supply unit comprises a storage battery, a charging control subunit, an electric quantity detection subunit and a charging subunit; the electric quantity detection subunit is used for detecting the electric quantity of the storage battery and transmitting the electric quantity information obtained by detection to the charging control subunit; the charging control subunit is configured to compare the electric quantity information with preset electric quantity threshold information, and transmit a charging instruction to the charging subunit when the electric quantity information is lower than the electric quantity threshold information; the charging subunit is configured to charge the storage battery after receiving the charging instruction;
the electric quantity detection subunit comprises an optical relay, an operational amplifier, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor and a capacitor; the first pin and the fourth pin of the optical relay are respectively connected with a second power supply through the fifth resistor and the fourth resistor; a second pin of the optical relay is grounded; a third pin of the optical relay is connected with a third pin of the operational amplifier through the third resistor; a second pin of the operational amplifier is grounded; the second resistor and the capacitor are connected in parallel on a wire between the third resistor and a third pin of the operational amplifier; a fifth pin of the operational amplifier is connected with a first power supply; the first pin of the operational amplifier is connected with the fourth pin of the operational amplifier; a first pin of the operational amplifier is connected with the charging control subunit through the capacitor;
the charging subunit comprises an RS trigger, an alternating current-direct current conversion circuit, a control constant current circuit, a sixth resistor, a first comparator and a second comparator; the charging control subunit is connected with the alternating current-direct current conversion circuit; the output ends of the first comparator and the second comparator are respectively connected with the end of the RS trigger and the end of the S trigger; the output end of the RS trigger is connected with the input end of the control constant current circuit, and the output end of the control constant current circuit is connected with the + input end of the first comparator and the-input end of the second comparator; the output end of the control constant current circuit is connected with the alternating current-direct current conversion circuit through the sixth resistor; the output end of the control constant current circuit is connected with the storage battery and grounded so as to charge the storage battery.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic logic diagram of an unattended groundwater level detector according to the invention;
FIG. 2 is a schematic structural view of a first embodiment of the unattended groundwater level detector according to the invention;
fig. 3 is a schematic view of the inside of the sensing tube in fig. 2 in a state where the sensing tube is inclined or bent.
FIG. 4 is a schematic structural view of a second embodiment of the unattended groundwater level detector according to the invention;
FIG. 5 is a schematic structural view of a third embodiment of the unattended groundwater level detector according to the invention;
fig. 6 is a schematic structural diagram of an embodiment of the lift driving assembly according to the present invention.
Fig. 7 is a schematic structural diagram of another embodiment of the lift driving assembly of the present invention.
Fig. 8 is a schematic circuit diagram of a power supply unit of an unattended groundwater level detector according to the present invention.
Wherein: 1. a microcontroller; 2. a measuring device; 21. measuring a scale; 22. a water immersion sensor; 23. an ultrasonic transmitter; 24. a floating plate; 25. an ultrasonic receiver; 26. a laser reflection device; 27. a laser range finder; 28. a detection tube; 29. laser pulses; 210. a reflective floating plate; 3. a wireless communication module; 4. a fixing device; 41. a box body; 42. a first through hole; 5. a lift drive assembly; 51. an electric reel; 52. a pulley; 53. a guide assembly; 531. a first fixed block; 532. a vertical strip block; 5321. a second vertical through hole; 54. pulling a rope; 55. a horizontal connecting rod; 56. a first gear; 57. a second gear; 58. moving the plate; 59. a third gear; 510. a first connecting rod; 511. a rack; 512. a first connecting bracket; 513. a second connecting bracket; 6. a monitoring terminal; r1, a first resistor; r2, a second resistor; r3, third resistor; r4, fourth resistor; r5, fifth resistor; r6, sixth resistor; C. a capacitor; u1, photo relay; u2, RS trigger; u3, an AC-DC conversion circuit; u4, control the constant current circuit; u5, operational amplifier; a1, a first comparator; a2, a second comparator; v1, a first power supply; v2, second power supply.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Example 1
An embodiment of the present invention provides an unattended groundwater level detector, as shown in fig. 1-2,
the method comprises the following steps:
the fixing device 4 is arranged at the upper part in the underground water surveying well or at the upper part in a pre-drilled detection hole for detecting the underground water level; can set up solitary exploration hole, avoid probably having suction pump, pump line etc. in the present groundwater exploration logging, influence water level and survey.
A measuring device 2 mounted on the fixing device 4 (which can be mounted in the fixing device and has a first through hole at the lower end for the measurement device to enter and exit, or directly mounted at the lower end of the measurement device); preferably, the measuring device is arranged to avoid possible interferences (suction pump, pump pipe) in the exploration logging.
Microcontroller 1 sets up in the fixing device, microcontroller 1 with measuring device 2 electricity is connected, microcontroller 1 still is connected with monitor terminal 6 through wireless communication module 3. Preferably, the fixing means may be provided to include: the system comprises a ground part and an in-well or detection hole part, wherein a microcontroller, a power supply and the following lifting driving assembly are arranged in the ground part, so that the exploration well logging and detection hole with larger sizes are avoided, and the ground operation is more convenient;
preferably, a first through hole 42 is formed at the lower end of the fixing device 4, the measuring device 2 is connected in the fixing device 4 through a lifting driving assembly 5, and the lifting driving assembly is used for driving the measuring device 2 to enter and exit the fixing device 4 from the first through hole 42; the measuring device 2 includes: a water level measuring device. The structure is convenient for accommodating the measuring device when not in use, and the service life of the measuring device is prolonged.
Preferably, as shown in fig. 5, the water level measuring device includes: the measuring scale 21, the lower end of the said measuring scale 21 sets up the water logging sensor 22; (the principle of the water sensor and the measuring scale is as follows: a worker sends a measuring instruction at a monitoring terminal, when the microcontroller 1 receives the measuring instruction transmitted by the monitoring terminal through the wireless communication module 3, the measuring instruction is transmitted to the measuring device 2, meanwhile, the microcontroller controls the lifting driving assembly to drive the measuring scale 21 at the bottom of the fixing device to vertically and downwards guide out, when the water sensor 22 at the lower end of the measuring scale 21 detects underground water, an underground water induction signal is transmitted to the measuring device 2, after the measuring device 2 receives the underground water induction signal transmitted by the water sensor 22, the lifting driving assembly is controlled to stop the downward guide out of the measuring scale 21, the current reading information of the measuring scale 21 is obtained, the current reading information is transmitted to the microcontroller 1 as water level information, the microcontroller 1 transmits the water level information transmitted by the measuring device 2 to the monitoring terminal through the wireless communication module 3, therefore, the acquisition of the water level information of the underground water is realized; and the measuring device 2 withdraws the measuring stick 21 after acquiring the water level information. )
Or the water level measuring device includes: a laser ranging module or an ultrasonic ranging module;
specifically, the method comprises the following steps: as shown in fig. 2, the laser ranging module includes: a laser range finder 27 (laser range sensor) provided on the fixing device 4; a floating plate 24 is placed on the water surface in the exploration well or the exploration hole, a laser reflection device 26 is arranged on the floating plate 24 (preferably, one end of the laser reflection device 26 can be connected with the exploration well wall or other related parts in the exploration well through a connecting rope), preferably, the emitting end of the laser ranging sensor vertically emits into the laser reflection device 26, and the laser ranging sensor transmits water level information to the microcontroller 1. (the specific working principle can be that a worker sends a measurement instruction at a monitoring terminal, when the microcontroller 11 receives the measurement instruction transmitted by the monitoring terminal through the wireless communication module 3, the measurement instruction is transmitted to the laser ranging sensor, the laser ranging sensor sends laser to reflect the laser through the laser sending device and receives the sent laser information, the time from the sending of the optical pulse to the receiving of the optical pulse is recorded and processed, the target distance can be measured, the water level information is obtained according to the target distance, and the microcontroller 11 transmits the water level information transmitted by the laser ranging sensor to the monitoring terminal through the wireless communication module 3, so that the acquisition of the water level information of underground water is realized); preferably, the detection tube 28 can be arranged at the first through hole 42 at the lower end of the fixing device 4, the laser ranging sensor is positioned at the inner upper end of the detection tube 28, the laser reflecting device 26 is positioned at the inner lower end of the detection tube 28, and the floating plate 24 can also be positioned at the inner lower end of the detection tube 28; the detection tube 28 is arranged to ensure that laser ranging is reliable;
preferably, as shown in fig. 3, when the survey well is a slant well (or a bent well), the laser range finder 27 is located at the top of the detection tube 28 (the slant tube or the bent tube) in the survey well in the underground, the starting point of the laser pulse 29 emitted by the laser range finder 27 is located at the geometric center of the hole for placing the detection tube 28 in the survey well, the inner wall of the detection tube 28 is coated with a reflective coating, and a reflective floating plate 210 with a reflective adhesive film on the surface is floated on the ground water level inside the detection tube 28; the laser pulse 29 is reflected for multiple times on the inner wall of the detecting tube 28 and then reaches the reflective float to form a reflected laser pulse 29, the reflected laser pulse 29 returns along the original path and is received by a laser receiving element in the laser range finder 27, the distance between the light and distance measuring instrument and the reflective float plate 210 is measured, the shape and the size of the detecting tube 28 correspond to the shape and the size of the detecting tube, and the water level elevation is obtained according to the distance. The detector tube 28 is used to ensure the reflection of the laser light.
As shown in fig. 4, the ultrasonic ranging module includes: an ultrasonic receiver 25 provided on the fixing device 4; a floating plate 24 is placed on the water surface in the exploration well or the exploration hole, an ultrasonic transmitter 23 is arranged on the floating plate 24 (preferably, one end of the floating plate 24 can be connected with the exploration well wall or other related components in the well through a connecting rope), and the ultrasonic transmitter 23 and the ultrasonic receiver 25 are respectively and electrically connected with the microcontroller 1; (the specific working principle can be as follows: when the staff sends a measurement instruction at the monitoring terminal, the microcontroller 11 receives the measurement instruction transmitted by the monitoring terminal through the wireless communication module 3, the measurement instruction is transmitted to the ultrasonic transmitter 23 and the ultrasonic receiver 25, the ultrasonic transmitter 23 transmits ultrasonic waves, the ultrasonic receiver 25 receives the ultrasonic waves, distance information is obtained according to the received ultrasonic information, water level information is obtained according to the distance information, the microcontroller 11 transmits the water level information transmitted by the ultrasonic ranging module to the monitoring terminal through the wireless communication module 3, and accordingly, the acquisition of the water level information of underground water is realized)
In the laser ranging module and the ultrasonic ranging module, the lifting driving assembly 5 only needs to guide the ultrasonic receiver 25 and the laser receiver out of the first through hole 42, and does not need to extend downwards for a long distance;
the working principle and the beneficial effects of the technical scheme are as follows: the receiving of the measuring instruction transmitted by the monitoring terminal is realized through the microcontroller and the wireless communication module, the measuring instruction transmitted by the monitoring terminal is transmitted to the measuring device, the water level information is automatically measured through the measuring device, the measuring device transmits the measured water level information to the microcontroller, and the microcontroller transmits the water level information to the monitoring terminal through the wireless communication module, so that the monitoring terminal acquires the measured water level information of the underground water;
compared with the prior art, above-mentioned unmanned on duty ground water level detector, monitor terminal's staff only need through wireless communication module to microcontroller transmission measurement instruction, alright realize long-range real-time measurement to groundwater level information, not only solved need the staff to go to the regional inconvenience that carries out water level measurement in groundwater place among the traditional art, also reduced simultaneously and measured the time that consumes groundwater, further improved the water level measurement efficiency to groundwater.
In one embodiment, the measuring device further comprises a water quality analysis unit; the water quality analysis unit is arranged at the lower end of the measuring scale; the water quality analysis unit is used for acquiring the water quality information of the underground water when the top end of the measuring scale is contacted with the underground water and transmitting the water quality information to the measuring device; the measuring device is also used for transmitting the water quality information to the staff through the wireless communication module;
and the water quality information comprises one or more of chroma information, turbidity information and water odor information of the underground water. According to the technical scheme, the water quality analysis unit is arranged at the top end of the measuring scale, so that underground water is detected, and the acquired water quality information is transmitted to workers through the wireless communication module; therefore, the remote acquisition of the groundwater quality information by the staff is realized.
Example 2
On the basis of embodiment 1, microcontroller still is used for comparing water level information and predetermined water level threshold value information, judges whether water level information surpasses water level threshold value information, when water level information surpasses water level threshold value information, transmits alarm information to monitor terminal through wireless communication module to remind monitor terminal's staff water level information to surpass water level threshold value information. According to the technical scheme, the water level information is compared with the preset water level threshold information through the microcontroller, whether the water level information exceeds the water level threshold information or not is judged, when the water level information exceeds the water level threshold information, alarm information is transmitted to workers through the wireless communication module, and therefore the workers are reminded when the water level information exceeds the water level threshold information.
Example 3
On the basis of the embodiment 1 or 2, the monitoring terminal receives water level information transmitted by the microcontroller, and when the water level information exceeds water level threshold information preset by the monitoring terminal, the monitoring terminal generates alarm information;
the network side server is used for acquiring precipitation information of the area where the underground water is located through a network when the alarm information and the water level information transmitted by the microcontroller are received, and analyzing whether the water level information exceeds the water level threshold value information and is influenced by the precipitation information;
when the water level information exceeds the water level threshold value information and is influenced by the precipitation information, storing the precipitation information, the water level information and the measurement time information in the same storage space in the network side server;
and when the water level information exceeds the water level threshold value information and is not influenced by the precipitation amount information, transmitting a measurement instruction to the microcontroller through the remote communication module, and measuring the water level information of the underground water again. In the technical scheme, when the network side server receives the alarm information and the water level information, the rainfall information of the area where the underground water is located is obtained through the network, and whether the water level information exceeds the water level threshold value is influenced by the rainfall information is analyzed; when the water level information is judged to be influenced by precipitation information when exceeding the water level threshold value (the precipitation information is obtained from a weather station through a network by a server when measuring the water level, an underground water level reference value corresponding to the precipitation section is preset in the server, when the water level information does not exceed the underground water level reference value corresponding to the precipitation section and exceeds the water level threshold value, the water level information is judged to exceed the water level threshold value and not be influenced by the precipitation information), the precipitation information, the water level information and the measurement time information are stored in the same storage space in the network side server, so that a worker can obtain the reason why the water level information exceeds the water level threshold value information; when the water level information exceeds the water level threshold value and is not influenced by the precipitation information, the remote communication module transmits a measurement instruction to the microcontroller, and the groundwater level information is measured again, so that the accuracy of measuring the water level information is improved, and when the water level information exceeds the water level threshold value for multiple times and is judged to be not influenced by the precipitation information, a worker is reminded to overhaul the underground pipeline.
Example 4
On the basis of the embodiment 3, the network side server further comprises a water level prediction model; the water level prediction model takes the water level information and the precipitation information corresponding to the first measurement time and the water level information corresponding to the second measurement time as input information, takes the precipitation information corresponding to the second measurement time as output information, and repeatedly trains the water level prediction model;
the first measurement time is earlier than the second measurement time;
and the network side server is used for transmitting the precipitation information of the time period to be measured and the water level information transmitted by the microcontroller before the time period to be measured to the water level prediction model, so that the acquisition of the water level prediction information of the underground water in the time period to be measured can be realized.
The working principle and the beneficial effects of the technical scheme are as follows:
in the technical scheme, the water level information and the precipitation information corresponding to the first measurement time and the water level information corresponding to the second measurement time are used as input information, and the precipitation information corresponding to the second measurement time is used as output information, so that the construction and training of a water level prediction model are realized; when the water level information of a certain time period needs to be predicted, the precipitation information of the time period to be predicted and the water level information transmitted by the microcontroller before the time period to be predicted are transmitted to the water level prediction model, and the water level prediction model can output the water level prediction information of the underground water in the time period to be predicted, so that the water level prediction information of the time period to be predicted is obtained.
Example 5
On the basis of the embodiment 3, the network side server further comprises a water level prediction model;
the network side server is further configured to transmit the measurement instruction to the microcontroller 1 through the wireless communication module 3 in the time period to be measured;
the microcontroller 1 is configured to transmit the measurement instruction to the measurement device 2; the measuring device 2 is used for transmitting the acquired water level information to the microcontroller 1; the microcontroller 1 is further configured to transmit the water level information obtained by measurement in the time period to be measured to the network side server;
the network side server is used for comparing the water level information obtained by measurement in the time period to be measured with the water level prediction information of the water level prediction model, and obtaining water level error information when the water level error information is greater than a first preset value; and optimizing the water level prediction model according to the water level error information so as to enable the water level prediction information to be closer to the water level information.
Preferably, the optimizing the water level prediction model by the acquired water level error information includes:
step 1: acquiring soil water content information and evaporation capacity information of an area where the underground water is located and distribution information of water storage areas around the underground water, wherein the water level error information is larger than a first preset value;
step 2: the water level prediction model adjusts the water level parameters of the water level prediction model according to the formula (1) according to the soil water content information, the evaporation capacity information and the distribution information of the water storage area around the underground water in the step 1;
Figure GDA0003099221170000141
wherein, the distribution information of the water storage area around the groundwater includes: distance, H, of test point from water storage area within a predetermined range around the test point1For the first adjusted water level parameter of the water level prediction model, H0Is the water level parameter of the water level prediction model before adjustment, pi is a constant, pi is 3.14159, exp is an exponential function with a natural constant e as a base, B is a value corresponding to the evaporation capacity information, A is a value corresponding to the soil water content information0Reference soil moisture content value set for water level prediction model, B0A reference evaporation amount value set for the water level prediction model, ln is a logarithm with a constant e as a base number, η is a preset weight, C1The actual ground water level detected for the first time,
Figure GDA0003099221170000143
the average distance between the test point and a plurality of water storage areas in a preset range around the test point is set;
and step 3: acquiring a water level parameter after previous adjustment of the water level prediction model, comparing the water level parameter after the previous adjustment with currently detected actual water level information to acquire compared water level error information, and when the water level error information is larger than a first preset value;
the parameters of the water level prediction model are adjusted again according to the formula (2), so that the water level prediction model is optimized;
Figure GDA0003099221170000142
n, lg is a base-10 logarithm;
wherein Hi-1For the last adjusted water level parameter of the water level prediction model, HiThe water level parameter after the current adjustment of the water level prediction model is obtained;
and 4, step 4: and (4) repeating the step (3) until the difference value between the water level parameter after the previous adjustment of the water level prediction model and the current actual water level information is smaller than a first preset value.
The working principle and the beneficial effects of the technical scheme are as follows:
according to the technical scheme, the network side server compares the measured actual water level information of the time period to be measured with the water level prediction information predicted by the water level prediction model to obtain the water level error information, and the water level prediction model is optimized through the water level error information, so that the water level prediction information output by the water level prediction model is closer to the actually measured water level information, and the accuracy of the water level prediction model is effectively improved.
Example 6
On the basis of any one of embodiments 1-5, the wireless communication module comprises one or more of a 5G communication module, an NB-loT communication module and a ZigBee communication module. In the technical scheme, the function of the wireless communication module is realized through various communication devices.
Example 7
On the basis of any of embodiments 1 to 6, as shown in fig. 6, the fixing device 4 includes: the box body 41 is arranged at the upper part in the underground water surveying well or at the upper part in a pre-drilled detection hole for detecting the underground water level;
a first through hole 42 for the measuring device 2 to pass through is arranged at the lower end of the box body 41; the box body 41 is arranged above the underground water and at a position horizontal to the ground;
the lift driving assembly 5 includes:
an electric reel 51 which rotates at the top end of the box body 41 through a first connecting bracket 514, specifically, the first connecting bracket is fixedly connected at the top end in the box body, and the electric reel is rotatably connected with the first connecting bracket; as shown in fig. 6, the rotating shaft of the electric reel is arranged in the front and rear;
two pulleys 52, each connected to the top end of the case 41 via a second connecting bracket 515, the two pulleys 52 being located on the left and right sides of the electric reel 51, respectively; preferably, the pulley is a fixed pulley;
two direction subassemblies 53, set up left and right sides inner wall in box 41, and correspond with two pulleys 52 respectively, direction subassembly 53 includes: the first fixing block 531 is fixedly connected to the inner wall of the left side or the inner wall of the right side of the box body 41, one side, away from the inner wall of the box body 41, of the first fixing block 531 is fixedly connected with a vertical strip-shaped block 532, and the vertical strip-shaped block 532 is provided with a second vertical through hole 5321;
the pulling rope 54 is wound on the electric reel 51, and two ends of the pulling rope 54 are respectively wound on the two pulleys 52 and then penetrate through the corresponding upper end and lower end of the second vertical through hole 5321;
two ends of the horizontal connecting rod 55 are respectively fixedly connected with two ends of the pull rope 54;
vertical strip piece 532 lateral wall sets up the confession the vertical logical groove of horizontal connecting rod 55 both ends up-and-down motion, two vertical logical groove one side link up the one side that two vertical strip pieces 532 are close to each other, two vertical logical groove opposite side and the vertical through-hole intercommunication of the second that corresponds (specifically can be left vertical strip piece right side wall setting vertical logical groove, vertical logical groove left side and the vertical through-hole right side intercommunication of left second), 2 fixed connection of measuring device are at horizontal connecting rod 55 lower extreme.
Preferably, in this embodiment, a measuring scale is not provided, only the vertical rod with the water sensor at the lower end is provided, the horizontal connecting rod or the pull rope can be provided with the sensing block, the box body is provided with the distance sensor for sensing the sensing block, and the underground water level can be calculated corresponding to the position of the sensing block; preferably, an encoder may be further provided, connected to the electric reel.
Preferably, a power sealing door for sealing the first through hole may be provided.
The working principle of the technical scheme is as follows: when the water level needs to be measured, the electric reel unreels, so that two ends of the pull rope move downwards, the pull rope drives the horizontal connecting rod to move downwards, the measuring device on the horizontal connecting rod moves downwards, and the water level is measured through the measuring device; when not needing to measure the water level, through the coiling of electrodynamic type reel for stay cord both ends upward movement drives the horizontal connecting rod upward movement through the stay cord, thereby makes the measuring device upward movement on the horizontal connecting rod, and above-mentioned horizontal connecting rod can be along the vertical spout upward movement of vertical strip piece, realizes that measuring device accomodates completely in the box, when need not measure the water level, protects measuring device.
The beneficial effects of the above technical scheme are: among the above-mentioned technical scheme, can realize accomodating measuring device in the box completely through the effect of stay cord, when need not measuring the water level, protect measuring device, extension measuring device's life. And the action of above-mentioned two fixed pulleys, two vertical strip pieces, the vertical through-hole of second, vertical spout leads measuring device's motion from a plurality of aspects to and the structure of symmetry guarantees that measuring device is balanced, avoids only promoting easy unstability through single stay cord.
Example 8
On the basis of any one of embodiments 1 to 7, as shown in fig. 7, fig. 7 is a front view, and the fixing device 4 includes: the box body 41 is arranged at the upper part in the underground water surveying well or at the upper part in a pre-drilled detection hole for detecting the underground water level;
a first through hole 42 for the measuring device 2 to pass through is arranged at the lower end of the box body 41;
the lift driving assembly 5 includes:
a first gear 56, which is a fixed internal gear, fixedly connected to the top inside the case 41; preferably, a fixed block can be arranged in the middle of the box body, and the first gear is fixedly connected to the front side of the fixed block;
two second gears 57 rotatably connected in the case 41 at left and right intervals and located below the first gears 56; at least one of the second gears is driven by a driving motor, and the driving motor is electrically connected with the microcontroller 1;
the left side and the right side of the moving plate 58 are both provided with racks 511, the racks 511 are in meshing transmission with the corresponding second gears 57, the measuring device 2 is fixedly connected to the lower end of the moving plate 58, and the moving plate 58 is positioned on the front side of the first gear 56;
a third gear 59 which is an external gear, the third gear 59 meshing with the first gear 56; fig. 7 shows only a part of the teeth of the third gear, which is a structure in which the teeth are provided over the entire circumference.
And a first connecting rod 510 having a lower end connected to an upper end of the moving plate 58, wherein an upper end of the first connecting rod 510 is rotatably connected to a front side of the third gear 59 via a rotating shaft disposed in front and rear directions.
Preferably, in an embodiment, the motor for driving the second gear is not provided, and a driving motor for driving the third gear to move in meshing engagement with the first gear may be provided.
The working principle of the technical scheme is as follows: the second gear rotates forward and backward to drive racks on two sides of the moving plate to move up and down, so that the measuring device connected to the moving plate moves up and down, and the third gear connected to the upper end of the moving plate moves in inner meshing with the first gear.
The beneficial effects of the above technical scheme are: the movement of the moving plate is limited and guided for the first time under the action of the two racks and the two second gears, the upper part of the moving plate is limited for the second time through the meshing movement of the third gear in the first gear, and the reliable movement of the moving plate is ensured and the moving plate is prevented from falling through the guiding and limiting of the moving plate, so that the reliability of the invention is improved.
Example 9
On the basis of any of embodiments 1 to 8, the microcontroller further includes a power supply unit; the power supply unit is used for supplying power to the microcontroller, the measuring device and the wireless communication module;
a power supply unit, as shown in fig. 8, including a storage battery, a charge control subunit, an electric quantity detection subunit, and a charging subunit; the charging control subunit is used for acquiring the electric quantity information of the storage battery and transmitting the electric quantity information to the electric quantity detection subunit; the charging control subunit is used for comparing the electric quantity information with preset electric quantity threshold information and transmitting a charging instruction to the charging subunit when the electric quantity information is lower than the electric quantity threshold information; the charging subunit is used for charging the storage battery after receiving the charging instruction; in the technical scheme, the power supply unit is used for supplying power to the microcontroller, the measuring device and the wireless communication module; the electric quantity detection of the storage battery is realized through an electric quantity detection subunit in the power supply unit; and comparing the electric quantity information with preset electric quantity threshold information (for example, the preset electric quantity threshold information is 20% of the total electric quantity of the storage battery) through the charging control subunit, and transmitting a charging instruction to the charging subunit when the electric quantity information is lower than the electric quantity threshold information to control the charging subunit to charge the storage battery.
The electric quantity detection subunit comprises an optical relay U1, an operational amplifier U5, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5 and a capacitor C; the first pin and the fourth pin of the optical relay U1 are respectively connected with a second power supply V2 through a fifth resistor R5 and a fourth resistor R4; a second pin of the optical relay U1 is grounded; a third pin of the optical relay U1 is connected with a third pin of the operational amplifier U5 through a third resistor R3; the second pin of the operational amplifier U5 is grounded; the second resistor R2 and the capacitor C are connected in parallel on a lead between the third resistor R3 and the third pin of the operational amplifier U5; the fifth pin of the operational amplifier U5 is connected to the first power supply V1; the first pin of the operational amplifier U5 is connected with the fourth pin of the operational amplifier U5; a first pin of the operational amplifier U5 is connected with the charging control subunit through a capacitor R1; the detection of the electric quantity of the storage battery by the electric quantity detection subunit is realized through the circuit structure.
The charging subunit comprises an RS trigger U2, an alternating current-direct current conversion circuit U3, a control constant current circuit U4, a sixth resistor R6, a first comparator A1 and a second comparator A2; the charging control subunit is connected with the alternating current-direct current conversion circuit U3; the output ends of the first comparator A1 and the second comparator A2 are respectively connected with the R end and the S end of the RS trigger U2; the output end of the RS trigger U2 is connected with the input end of the control constant current circuit U4, and the output end of the control constant current circuit U4 is connected with the input end of the first comparator A1 and the input end of the second comparator A2; the output end of the control constant current circuit U4 is connected with the alternating current-direct current conversion circuit U3 through a sixth resistor R6; the output end of the control constant current circuit U4 is connected with the storage battery to be grounded so as to charge the storage battery; the charging function of the storage battery is realized through the circuit structure.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (9)

1. An unattended groundwater level detector, comprising:
the fixing device (4) is arranged at the upper part in the underground water surveying well or at the upper part in a pre-drilled detection hole for detecting the underground water level;
a measuring device (2) mounted on the fixing device (4);
the microcontroller (1) is arranged in the fixing device, the microcontroller (1) is electrically connected with the measuring device (2), and the microcontroller (1) is also connected with a monitoring terminal (6) through a wireless communication module (3);
the microcontroller (1) further comprises a power supply unit; the power supply unit is used for supplying power to the microcontroller (1), the measuring device (2) and the wireless communication module (3);
the power supply unit comprises a storage battery, a charging control subunit, an electric quantity detection subunit and a charging subunit; the electric quantity detection subunit is used for detecting the electric quantity of the storage battery and transmitting the electric quantity information obtained by detection to the charging control subunit; the charging control subunit is configured to compare the electric quantity information with preset electric quantity threshold information, and transmit a charging instruction to the charging subunit when the electric quantity information is lower than the electric quantity threshold information; the charging subunit is configured to charge the storage battery after receiving the charging instruction;
the electric quantity detection subunit comprises an optical relay (U1), an operational amplifier (U5), a first resistor (R1), a second resistor (R2), a third resistor (R3), a fourth resistor (R4), a fifth resistor (R5) and a capacitor (C);
the first pin and the fourth pin of the optical relay (U1) are respectively connected with a second power supply (V2) of V through the fifth resistor (R5) and the fourth resistor (R4); a second pin of the optical relay (U1) is grounded; the third pin of the optical relay (U1) is connected with the third pin of the operational amplifier (U5) through the third resistor (R3);
a second pin of the operational amplifier (U5) is grounded; the second resistor (R2) and the capacitor (C) are connected in parallel on a wire between the third resistor (R3) and the third pin of the operational amplifier (U5); the fifth pin of the operational amplifier (U5) is connected with a first power supply (V1); the first pin of the operational amplifier (U5) is connected with the fourth pin of the operational amplifier (U5); a first pin of the operational amplifier (U5) is connected with the charge control subunit through the capacitor (C);
the charging subunit comprises an RS trigger (U2), an alternating current-direct current conversion circuit (U3), a control constant current circuit (U4), a sixth resistor (R6), a first comparator (A1) and a second comparator (A2);
the charging control subunit is connected with the alternating current-direct current conversion circuit (U3); the output ends of the first comparator (A1) and the second comparator (A2) are respectively connected with the end and the S end of the RS flip-flop (U2);
the output end of the RS trigger (U2) is connected with the input end of the control constant current circuit (U4), and the output end of the control constant current circuit (U4) is connected with the input end of the first comparator (A1) and the input end of the second comparator (A2); the output end of the control constant current circuit (U4) is connected with the alternating current-direct current conversion circuit (U3) through the sixth resistor (R6);
the output end of the control constant current circuit (U4) is connected with the storage battery to be grounded so as to charge the storage battery.
2. The unattended groundwater level detector according to claim 1,
a first through hole (42) is formed in the lower end of the fixing device (4), the measuring device (2) is connected into the fixing device (4) through a lifting driving assembly (5), and the lifting driving assembly is used for driving the measuring device (2) to enter and exit the fixing device (4) from the first through hole (42);
the measuring device (2) comprises: a water level measuring device.
3. The unattended groundwater level detector according to claim 1 or 2,
the water level measuring device includes: the measuring scale (21), the lower end of the measuring scale (21) is provided with a water sensor (22);
or the water level measuring device includes: laser rangefinder module or ultrasonic ranging module.
4. An unattended groundwater level detector according to claim 2, wherein the fixing device (4) comprises: the box body (41), the box body (41) is arranged at the upper part in the underground water surveying well, or is arranged at the upper part in a pre-drilled detection hole for detecting the underground water level;
the lower end of the box body (41) is provided with a first through hole (42) for the measuring device (2) to pass through;
the lifting drive assembly (5) comprises:
an electric reel (51) rotatably connected to the top end of the case (41) by a first connecting bracket (512);
two pulleys (52) which are connected to the top end of the box body (41) through a second connecting bracket (513), wherein the two pulleys (52) are respectively positioned on the left side and the right side of the electric reel (51);
two direction subassemblies (53), set up in left and right sides inner wall in box (41) and respectively with two pulley (52) correspond, direction subassembly (53) include: the first fixing block (531) is fixedly connected to the inner wall of the left side or the inner wall of the right side of the box body (41), one side, far away from the inner wall of the box body (41), of the first fixing block (531) is fixedly connected with a vertical strip-shaped block (532), and the vertical strip-shaped block (532) is provided with a second vertical through hole (5321);
the pull rope (54) is wound on the electric reel (51), two ends of the pull rope (54) are respectively wound on the two pulleys (52), and then penetrate through the upper end and the lower end of the corresponding second vertical through hole (5321);
two ends of the horizontal connecting rod (55) are respectively and fixedly connected with two ends of the pull rope (54);
the vertical through grooves are formed in the side walls of the vertical strip-shaped blocks (532) and used for enabling the two ends of the horizontal connecting rod (55) to move up and down, one side of each vertical through groove penetrates through one side, close to each other, of each vertical strip-shaped block (532), the other side of each vertical through groove is communicated with the corresponding second vertical through hole (5321), and the measuring device (2) is fixedly connected to the lower end of the horizontal connecting rod (55).
5. The unattended groundwater level detector according to claim 2,
the fixing device (4) comprises: the box body (41), the box body (41) is arranged at the upper part in the underground water surveying well, or is arranged at the upper part in a pre-drilled detection hole for detecting the underground water level;
the lower end of the box body (41) is provided with a first through hole (42) for the measuring device (2) to pass through;
the lifting drive assembly (5) comprises:
the first gear (56) is a fixed internal gear and is fixedly connected to the inner top of the box body (41);
the two second gears (57) are connected in the box body (41) in a left-right spaced mode and are positioned at the lower part of the first gear (56), at least one second gear (57) is driven by a driving motor, and the driving motor is electrically connected with the microcontroller (1);
the left side and the right side of the moving plate (58) are provided with racks (511), the racks (511) are in meshing transmission with the corresponding second gears (57), the measuring device (2) is fixedly connected to the lower end of the moving plate (58), and the moving plate (58) is located on the front side of the first gear (56);
a third gear (59) which is an external gear, wherein the third gear (59) is in internal meshing motion with the first gear (56);
and the lower end of the first connecting rod (510) is connected to the upper end of the moving plate (58), and the upper end of the first connecting rod (510) is rotatably connected to the front side of the third gear (59) through a rotating shaft arranged in the front and at the back.
6. The unattended groundwater level detector according to claim 1,
the monitoring terminal receives water level information transmitted by the microcontroller, and when the water level information exceeds water level threshold information preset by the monitoring terminal, the monitoring terminal generates alarm information;
the monitoring terminal (6) is also connected with a network side server, and the network side server is used for acquiring precipitation information of the area where the underground water is located through a network when the alarm information and the water level information transmitted by the microcontroller (1) are received, and analyzing whether the water level information exceeds the water level threshold value information and is influenced by the precipitation information;
when the water level information exceeds the water level threshold value information and is influenced by the precipitation information, storing the precipitation information, the water level information and the measurement time information in the same storage space in the network side server;
and when the water level information exceeds the water level threshold value information and is not influenced by the precipitation information, transmitting a measurement instruction to the microcontroller (1) through a remote communication module, and measuring the water level information of the underground water again.
7. The unattended groundwater level detector according to claim 6,
the network side server also comprises a water level prediction model; the water level prediction model takes the water level information and the precipitation information corresponding to a first measurement time and the water level information corresponding to a second measurement time as input information, takes the precipitation information corresponding to the second measurement time as output information, and repeatedly trains the water level prediction model;
the first measurement time is earlier than the second measurement time;
and the network side server is used for transmitting precipitation information of a time period to be measured and the water level information transmitted by the microcontroller (1) before the time period to be measured to the water level prediction model, so that the acquisition of the water level prediction information of the underground water by the time period to be measured can be realized.
8. The unattended groundwater level detector according to claim 7,
the network side server also comprises a water level prediction model;
the network side server is further used for transmitting the measurement instruction to the microcontroller (1) through the wireless communication module (3) in the time period to be measured;
the microcontroller (1) is used for transmitting the measuring instruction to the measuring device (2); the measuring device (2) is used for transmitting the acquired water level information to the microcontroller (1); the microcontroller (1) is further configured to transmit the water level information obtained by measurement in the time period to be measured to the network side server;
the network side server is used for comparing the water level information obtained by measurement in the time period to be measured with the water level prediction information of the water level prediction model, and obtaining water level error information when the water level error information is greater than a first preset value; and optimizing the water level prediction model according to the water level error information so as to enable the water level prediction information to be closer to the water level information.
9. The unattended groundwater level detector according to claim 8,
optimizing the water level prediction model through the acquired water level error information, wherein the optimizing process comprises the following steps:
step 1: acquiring soil water content information and evaporation capacity information of an area where the underground water is located and distribution information of water storage areas around the underground water, wherein the water level error information is larger than a first preset value;
step 2: the water level prediction model adjusts the water level parameters of the water level prediction model according to the formula (1) according to the soil water content information, the evaporation capacity information and the distribution information of the water storage area around the underground water in the step 1;
Figure FDA0003099221160000051
wherein, the distribution information of the water storage area around the groundwater includes: distance, H, of test point from water storage area within a predetermined range around the test point1For the first adjusted water level parameter of the water level prediction model, H0Is the water level parameter of the water level prediction model before adjustment, pi is a constant, pi is 3.14159, exp is an exponential function with a natural constant e as a base, B is a value corresponding to the evaporation capacity information, A is a value corresponding to the soil water content information0Reference soil moisture content value set for water level prediction model, B0A reference evaporation amount value set for the water level prediction model, ln is a logarithm with a constant e as a base number, η is a preset weight, C1The actual ground water level detected for the first time,
Figure FDA0003099221160000061
the average distance between the test point and a plurality of water storage areas in a preset range around the test point is set;
and step 3: acquiring a water level parameter after previous adjustment of the water level prediction model, comparing the water level parameter after the previous adjustment with currently detected actual water level information to acquire compared water level error information, and when the water level error information is larger than a first preset value;
the parameters of the water level prediction model are adjusted again according to the formula (2), so that the water level prediction model is optimized;
Figure FDA0003099221160000062
n, lg is a base-10 logarithm;
wherein Hi-1For the last adjusted water level parameter of the water level prediction model, HiThe water level parameter after the current adjustment of the water level prediction model is obtained;
and 4, step 4: and (4) repeating the step (3) until the difference value between the water level parameter after the previous adjustment of the water level prediction model and the current actual water level information is smaller than a first preset value.
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