CN113324613A - Automatic monitoring and alarming method for water level of dam piezometer tube - Google Patents
Automatic monitoring and alarming method for water level of dam piezometer tube Download PDFInfo
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- CN113324613A CN113324613A CN202110594155.2A CN202110594155A CN113324613A CN 113324613 A CN113324613 A CN 113324613A CN 202110594155 A CN202110594155 A CN 202110594155A CN 113324613 A CN113324613 A CN 113324613A
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- 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
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Abstract
The invention discloses an automatic monitoring and alarming method for water level of a dam piezometer tube, belonging to the technical field of hydrological monitoring, wherein a monitoring device is separated from the water surface discontinuously, so that the influence of long-time contact of the monitoring device with water on the performance is avoided, and the monitoring result has high precision, and the method comprises the following steps: connecting the liquid level monitoring device to a power source through a traction device; the liquid level monitoring device is in communication connection with the server; placing a liquid level monitoring device in a piezometer tube; the server monitors the signal of the liquid level monitoring device, and when the liquid level monitoring device sends a water level signal, the liquid level monitoring device is lifted upwards.
Description
Technical Field
The invention belongs to the technical field of automatic monitoring of dykes and dams, and particularly relates to an automatic monitoring and alarming method for water level of a pressure measuring pipe of a dam.
Background
After the dam is built for water storage, seepage can occur to the dam body, the dam foundation and the dam foot under the action of a water head in front of the dam, and seepage can also occur between two ends of the dam and a bank slope, which is unfavorable for the operation of the dam but also inevitable. In the earth and rockfill dam body, seepage water forms a gradually-reduced seepage water surface, namely a seepage surface, a curve is displayed on the cross section of the earth and rockfill dam and is called a seepage line, each water retaining earth and rockfill dam building is provided with a designed seepage line, if the measured seepage line is lower than the designed line, the dam is stable and safe, and if the measured seepage line is higher than the designed line, the dangerous case probability of the dam body is higher, and even accidents such as landslide, piping and the like can be caused. The measured change data of the infiltration line is realized by observing the water surface elevation in the pressure measuring pipe arranged in the dam body or the dam foundation.
The dam pressure measuring pipes are generally distributed in a plurality of cross sections according to different lengths of the dam, and three to four pressure measuring pipes are arranged on each cross section; the pressure measuring pipes can also be arranged on the dam foundation of the dike or the earth and rockfill dam to observe the water seepage pressure of the permeable layer or the pressure-bearing water layer of the dike or the dam foundation, so as to research the permeability stability of the dike and the dam foundation soil and judge whether the dam foundation soil is likely to cause soil flow or piping; the pressure measuring pipes can also be arranged at the joints of the two ends of the earth-rock dam and the bank slope for monitoring the seepage situation at the two ends of the dam.
And connecting lines of the water levels of the plurality of piezometer pipes on the same section at the same moment are measured infiltration lines. The infiltration line is changed along with the change of the upstream water level of the dam, and when the upstream water level is too low or reaches the dead water level, the downstream piezometer tube water level of the dam is lower, and can be in a water-free state; when the upstream water level is too high or flood peak reduction is needed to block and store flood in a flood season, the water level of the pressure measuring pipe behind the dam may be higher than the designed infiltration line and even the phenomenon of water overflow of the pressure measuring pipe at the dam foot can occur. Therefore, the change condition of the infiltration line in the dam body is mastered by monitoring the water level of the piezometer pipe, so that whether the dam is in a stable and safe state or not is judged in advance, which is an important work in the operation management of the dam. How to make a prejudgment in time according to the monitoring data and to warn in time when the monitoring data exceeds the design index is an important matter of the dam safe operation management work. Therefore, after the actual measurement infiltration line on each observation section is compared with the designed infiltration line, whether the dam is in a safe operation state or whether a dangerous case occurs is judged in advance, and management and maintenance personnel are prompted to check the danger early, so that a whole set of automatic monitoring and alarming method for the water level of the piezometer pipe is needed.
The inventor finds that the monitoring devices used for monitoring the water level of the pressure measuring pipe of the dam at present are mainly pressure type sensors and water level monitoring devices developed by utilizing the float principle. Because the pressure sensor is soaked in water for a long time, the service life is short, the accuracy of monitoring data is not high, and the pressure sensor cannot be monitored in the absence of water; the monitoring equipment developed by the floater principle is often blocked, the monitoring effect is influenced, and the monitoring precision is not high. The two types of equipment can not meet the requirements of the monitoring scheme, and the monitoring scheme is an automatic monitoring and alarming method developed aiming at an intelligent pipeline water level monitoring system.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automatic monitoring and alarming method for the water level of a dam piezometer pipe, so as to meet the current technical requirements.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an automatic monitoring and alarming method for the water level of a dam piezometer pipe comprises the following steps:
connecting the liquid level monitoring device to a power source through a traction device;
the liquid level monitoring device is in communication connection with the server;
placing a liquid level monitoring device in a piezometer tube;
the server receives signals of the liquid level monitoring device, records water level data and lifts the liquid level monitoring device upwards when the liquid level monitoring device sends water level signals.
In the invention, the following needs are explained in combination with the background art: three important features.
And setting an upper limit, namely that the water level in the pressure measuring pipe reaches or exceeds the high water level set by the user.
Designing the water level of the infiltration line, namely designing the water level of a single piezometer tube corresponding to the infiltration line on the section.
And setting a lower limit, namely setting the lowest effective water level which can be observed by each piezometer pipe, and if the piezometer pipe is in a waterless state, determining that the water level is lower than the lowest effective water level.
The main operation procedures of the monitoring scheme are as follows:
after the equipment is started, the server firstly judges the initial state of the liquid level monitoring device (namely the initial elevation data of the liquid level monitoring device), then the liquid level monitoring device automatically searches the water surface downwards, and in the downwards-moving process, the system always judges whether water exists or not and sets a lower limit. If the liquid level detection device is not triggered when the system descends to a set lower limit, the liquid level monitoring device stops at the set lower limit position, and then the system runs a lower limit monitoring mode; if the liquid level detection device touches the water surface in the descending process, namely a signal is triggered, the liquid level detection device stops, and water surface data are recorded; and then the system compares and judges the current water level data with the elevation data of the set upper limit, the designed saturation line and the set lower limit, and then executes a corresponding monitoring mode.
To be noted: a water level monitoring process (see figure two). The liquid level detection device monitors the water level according to a set monitoring period, specifically, the liquid level detection device stops when touching the water surface downwards, reports water level data, and then waits for the next monitoring period after the liquid level detection device raises a set height above the water surface (the set height can be set by a user). In a monitoring period, if the water level is unchanged, the water level descends, and the water level rises but does not reach a set height, the liquid level detection device monitors the water level according to the set monitoring period; if the water level rises to reach the set height within a set monitoring period, namely a trigger signal, the liquid level monitoring device is not limited by the set monitoring period, the water level data is recorded, and the set height is raised for standby. Thus completing a water level monitoring process.
In the scheme, four monitoring modes are adopted, and the modes are automatically switched according to different scenes.
(1) Upper limit monitoring mode: (also called alarm mode) the operating condition is that the water level in the manometer tube reaches or exceeds a set upper limit. In the mode, the system automatically and continuously gives out an alarm through a client, a broadcast and the like, and the system controls the liquid level monitoring device to stop at a set upper limit. Under the scene, the system continuously gives an alarm, the water level data is not reported any more, the liquid level monitoring device is always in a water contact state until the water level drops and falls below a set upper limit, the water surface leaves the liquid level monitoring device, and the system automatically removes the alarm and automatically switches to an early warning monitoring mode. The scene shows that the current infiltration line is far higher than the designed infiltration line, the seepage safety risk of the dam caused by water head difference is extremely high, and dangerous cases are caused by overhigh seepage pressure at any time.
(2) Early warning monitoring mode: the operation condition is that the water level of the piezometer pipe is less than a set upper limit and is more than or equal to the designed saturation line water level. In the mode, the system can continuously send out early warning prompts to the operator on duty through the client, the display screen on duty and the like. At this time, the liquid level detection device completes each water level monitoring process according to the monitoring period in the mode. If the water level drops below the designed saturation line, the system automatically switches to a normal monitoring mode; if the water level continues to rise to reach the set upper limit, the system automatically switches to the upper limit monitoring mode. Under the scene, the infiltration line reaches or is higher than the designed infiltration line, and the dam is higher in infiltration safety risk due to the water head difference, and the dam dangerous case is possibly caused due to overlarge infiltration pressure.
(3) And (3) a normal monitoring mode: the operation condition is that the water level is more than or equal to the set lower limit and less than the designed water level elevation of the saturation line. In this mode, the saturation line is lower than the design saturation line, and the dam is in a normal operation state under the design condition. The liquid level monitoring device completes each water level monitoring process according to the monitoring period in the mode. If the water level rises to reach the designed saturation line water level, the system automatically switches to an early warning monitoring mode; if the water level drops below the set lower limit, the system automatically switches to the lower limit monitoring mode.
(2) Lower limit monitoring mode: the operation condition is that the water level of the piezometer tube is lower than a set lower limit. In this mode, the liquid level monitoring device stops at a set lower limit to stand by, and no longer executes each water level monitoring process according to a set monitoring period. And reporting the set lower limit elevation data only according to the set monitoring period. In the scene, the water level in the pressure measuring pipe is lower than a set lower limit or in a water-free state, the saturation line is far lower than the designed saturation line, the dam is safe, the liquid level monitoring device stops at the set lower limit and enters a standby state until the water level rises to reach the set lower limit to trigger the liquid level monitoring device, and the system automatically shifts to a normal monitoring mode.
It should also be noted that:
the monitoring period is relatively long in a normal monitoring mode and a lower limit monitoring mode, and is generally 24 hours or longer; in the early warning monitoring mode, the monitoring period is short, generally 1 hour or less, which can be set by the user as required.
The water level data reported in the lower limit monitoring mode is set lower limit elevation data, namely, the current actual water level is considered to be lower than the set lower limit. Under the upper limit monitoring mode, water level data (set upper limit) is reported for the first time after the mode is entered, alarm mark information is attached until the water level is reduced to be below the set upper limit, and meanwhile, the alarm is released, and the system automatically enters the early warning monitoring mode.
The technical scheme of the invention has the following beneficial effects:
1) in the invention, the liquid level monitoring device is used for automatically searching the water surface, automatically judging the states of water and no water by using the liquid level monitoring device, monitoring the water level in time when the water level rises and reaches the set height, and monitoring according to the set period when the water level does not change, the water level falls or the water level rises but does not reach the set height.
2) According to the invention, when the water level reaches the set upper limit or the set lower limit, the liquid level monitoring device automatically enters a standby state, so that the energy consumption is reduced, the equipment part abrasion is reduced, the service life of the equipment is prolonged, and the long-term stability of the detection precision is maintained, thereby reducing the measurement error, the repeatability error and the reproducibility error.
3) In the invention, when the water level rises to the designed saturation line, the system automatically gives an early warning. When the water level reaches the set upper limit, the system automatically gives an alarm.
4) In the invention, the scene that the water level rise is unfavorable for the dam is monitored in a key mode, but the scene that the water level rise is unfavorable for the dam can be also adjusted to be monitored in a key mode under the scene that the water level drops. The method automatically searches the water surface and records the water level elevation, and the four monitoring modes are automatically switched according to different running conditions.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a block diagram of a method of the present invention in accordance with one or more embodiments;
FIG. 2 is a flow diagram of a monitoring process according to one or more embodiments of the invention.
Detailed Description
It should be noted that any combination between the following embodiments is possible.
Example 1
In a typical implementation manner of the invention, the embodiment discloses a monitoring and alarming method for the water level of a pressure measuring pipe of a dam, the water level monitoring device is instantly contacted with the water surface only when the water level reaches a preset monitoring period or the water level rises and touches the liquid level monitoring device in one monitoring period, the liquid level monitoring devices in other situations are all kept in a water leaving state, the water leaving height is dynamically regulated and controlled by a user according to practical application, so that the influence on the performance caused by the long-time contact of the liquid level monitoring device with the water is avoided, and the monitoring result is high in precision.
Referring to fig. 1, the specific steps of the present embodiment include:
after the liquid level monitoring device is connected with the traction device, the liquid level monitoring device is placed in a pressure measuring pipe, and the initial equipment detection step is executed;
at the moment, the initial position of the liquid level monitoring device needs to be determined, and the initial position of the liquid level monitoring device is accurately calculated according to the elevation data of the top of the pressure measuring pipe.
Under the control of the server, the liquid level monitoring device starts to execute a monitoring program and automatically searches for the water surface;
the liquid level monitoring device judges whether water exists or not and sets a lower limit in the descending process.
If the liquid level monitoring device is not touched by water all the time when the liquid level monitoring device descends to the set lower limit, the system stops at the position, and the system runs in a lower limit monitoring mode. And when the water level rises to the lower limit, the liquid level monitoring device is triggered, and the system automatically switches to a normal monitoring mode to operate.
If the liquid level detection device touches the water surface in the downlink, the water level data is reported, the system automatically judges which monitoring mode the data meets, and then the monitoring mode under the operating condition is executed.
If the water level is monitored to be more than or equal to the set upper limit in descending, the system operates according to an upper limit monitoring mode (M1), in the mode, the liquid level monitoring device stops when descending to the set upper limit and is in a water contact state, the system firstly reports water level data (set upper limit) and attached alarm mark information, an alarm is sent out through a duty room, broadcasting and the like until the water level is reduced to be lower than the set upper limit, and the alarm is released. The system automatically shifts to early warning monitoring mode operation (M2).
If the monitored water level in the descending process is smaller than the set upper limit and is larger than or equal to the designed saturation line water level, the system operates according to an early warning mode monitoring mode (M2). In the mode, the system can continuously send out early warning prompts to the operator on duty through the client, the display screen on duty and the like. The liquid level detection device completes each water level monitoring process according to the monitoring period in the mode. When the water level drops to be lower than the designed saturation line, the system automatically switches to a normal monitoring mode (M3) to operate; or until the water level continues to rise to reach the set upper limit, the system automatically shifts to the upper limit monitoring mode (M1) for operation. Under the scene, the infiltration line reaches or is higher than the designed infiltration line, and the dam is higher in infiltration safety risk due to the water head difference, and the dam dangerous case is possibly caused due to overlarge infiltration pressure.
If the monitored water level in the descending process is less than the designed saturation line elevation data and is more than or equal to the set lower limit, the system operates according to the normal monitoring mode (M3). Until the water level rises to reach the designed saturation line water level, the system automatically switches to an early warning monitoring mode (M2) to operate; or until the water level drops below the set lower limit, the system automatically switches to the lower limit monitoring mode (M4) for operation.
If the water level is not reached until the set lower limit in the descending process, the liquid level monitoring device stops at the lower limit, and the lower limit monitoring mode is operated (M4). When the water level rises to a set lower limit trigger signal, the system records water level data and automatically switches to a normal monitoring mode (M3) for operation.
It should be noted that, in an abnormal state, the following situations may occur in one monitoring period: that is, the number of changes from (M1) directly to (M3) or (M4), from (M2) directly to (M4), or from (M4) directly to (M2) or (M1), and the like are also possible. The system can automatically judge which monitoring mode operation condition is met to the monitoring water level data according to a set period, and then execute the monitoring mode under the operation condition. Under normal conditions, the water level in the pressure measuring pipe changes slowly, and the phenomenon generally can not appear in normal operation. If the information appears, the system can automatically prompt the person on duty through a client, a display screen of a duty room and the like.
It can be seen that achieving this result requires at least the following key steps:
connecting the liquid level monitoring device to a power source through a traction device;
the liquid level monitoring device is in communication connection with the server;
placing a liquid level monitoring device in a piezometer tube;
the server receives a signal of the liquid level monitoring device, records the current water level when the liquid level monitoring device sends a water level signal and lifts the set height of the liquid level monitoring device upwards;
in the above steps, in order to avoid the winding of the wire rod, in the present embodiment, when the liquid level monitoring device is in communication connection with the server, a wireless connection mode is adopted.
The liquid level monitoring device can adopt a device which is frequently used in the field and can realize the monitoring of whether water exists.
In this embodiment, the server monitors the signal of the liquid level monitoring device, and when the liquid level monitoring device sends a water level signal, the server records water level data and commands the traction device to lift the liquid level monitoring device upward. It is understood that the power source connected with the traction device can adopt various types of motors. The traction device can adopt various forms, and the liquid level monitoring device can be lifted. For example, a rope wound around a pulley group or a roller group; or a rope wound around a plurality of sets of shafts of the rollers.
Specifically, the traction device is provided with an encoder for counting the traction stroke, and the server can directly read the data of the encoder. The encoder of the traction device can record the stroke data of the traction device, for example, when the traction device adopts a belt pulley set, the encoder is set to record the rotation angle of one belt pulley in the belt pulley set through an angular displacement sensor.
In addition, in the monitoring scheme, the server automatically makes a judgment after comparing the actually measured water level with the water level of the designed wetting line, the set upper limit and the set lower limit. When the monitored water level is equal to or more than the water level of which the designed saturation line water level is less than the set upper limit, the server judges that the water level reaches an early warning state; when the water level is monitored to be equal to or greater than the set upper limit, the server judges that the water level reaches the set upper limit, and simultaneously alarms; when the monitoring device operates to a set lower limit and the water level is not monitored, the server judges that the actual water level is lower than the monitoring range. It can be understood that: the server judges that the actually measured water level is in accordance with a certain operation condition, and automatically makes a response under each operation condition.
It is understood that in the present embodiment, the power source connected to the traction device may be a motor or other controllable power source.
Specifically, the traction device is provided with an encoder for counting the traction stroke, and the server can directly read the data of the encoder. The encoder of the traction device can record the stroke data of the traction device, for example, when the traction device adopts a belt pulley set, the encoder is set to record the rotation angle of one belt pulley in the belt pulley set through an angular displacement sensor.
In order to avoid the wire winding, when the liquid level monitoring device is in communication connection with the server in the embodiment, a wireless connection mode is adopted.
The present embodiment is further described below according to a specific implementation scenario.
At dam body installation pressure-measuring pipe, its mouth of pipe is higher than the dam face, is connected to the power supply with liquid level monitoring device through traction device to with liquid level monitoring device and server communication connection, can free communication between server and the liquid level monitoring device this moment, the server can acquire the signal of liquid level monitoring device output.
Water level monitoring process example (Normal monitoring mode)
The water level was monitored once a day 8 am.
And when the liquid level detection device reaches the water surface in the morning of 8 days, the liquid level detection device stops downwards touching the water surface, reports water level data, then raises the position 2cm above the water surface to stand by, and waits for monitoring again when the liquid level detection device is 8 days in the morning next day. If the water level is unchanged, the water level is reduced, the water level is increased but is less than 2cm before monitoring again, and the liquid level detection device also carries out primary water level monitoring when 8 days are earlier next; if the water level reaches 2cm each time before 8 days earlier, the water level touches the liquid level monitoring device, namely a trigger signal is sent, and the system records water level data and raises the data by 2 cm. The water level monitoring was run again 8 days earlier the next day.
It should be understood that the liquid level monitoring device operates each water level monitoring process according to a set period only in the early warning and normal monitoring modes. If the monitoring period in the normal monitoring mode is 24 hours, the monitoring period in the early warning monitoring mode can be set to 1 hour.
Example 2
In an exemplary implementation manner of the present invention, this embodiment discloses an automatic monitoring and alarming method for water level of pressure measuring pipe of dam, and the difference between embodiment 2 and embodiment 1 is that the server further includes a broadcasting system and a plurality of terminals for receiving signals of the broadcasting system. When the server sends out an alarm signal, the broadcasting system broadcasts the signal, and the terminal receives the signal of the broadcasting system.
It is understood that the terminal in this embodiment may be a mobile phone, a personal computer, a PDA, or a tablet computer.
It is understood that the broadcasting system in the present embodiment may be a software module disposed in the server.
Example 3
In an exemplary implementation manner of the present invention, this embodiment discloses an automatic monitoring and alarming method for water level of a dam piezometer pipe, and the difference between embodiment 3 and embodiment 2 is that the terminal is a terminal capable of receiving an analog signal, and the broadcasting system is a radio station that transmits an analog signal.
It will be appreciated that the terminal may be a radio or a television.
Example 4
In a typical implementation manner of the invention, the embodiment discloses an automatic monitoring and alarming method for the water level of a dam piezometer pipe, which can be applied to the underground water level monitoring, an underground water observation well is generally deep and cannot have a water-free condition, and the wellhead of the observation well is generally higher than the ground and cannot have an overhigh water level. In the embodiment, when the method is used for monitoring the groundwater level, the requirement can be met only by operating a normal monitoring mode.
Example 5
In a typical implementation manner of the present invention, the present embodiment discloses an automatic monitoring and alarming system for a water level of a dam piezometer pipe, which is used for implementing the automatic monitoring and alarming method for a water level of a dam piezometer pipe according to any one of embodiments 1 to 3, and includes:
the liquid level monitoring device is used for monitoring the water level in the pressure measuring pipe;
the server is used for receiving signals of the liquid level monitoring device; the server can also judge according to the received monitoring device signal so as to control the height of the liquid level monitoring device;
the traction device is used for pulling the liquid level monitoring device.
The liquid level monitoring device can adopt a device which is frequently used in the field and can realize the monitoring of whether water exists.
The server is an existing server, and at least includes:
the acquisition unit is used for acquiring signals of the liquid level monitoring device;
the judging unit is used for judging the liquid level height in the current pressure measuring pipe according to the signal of the liquid level monitoring device;
the judging unit is also used for sending out an alarm instruction;
and the alarm unit is used for sending an alarm signal according to the judgment result (namely the alarm instruction) of the judgment unit.
The server may further include:
the unit in the server provided by the embodiment can realize the automatic monitoring and alarming method for the water level of the dam piezometer pipe. Each unit in the server provided by this embodiment may perform each step in the above method embodiments.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An automatic monitoring and alarming method for the water level of a dam piezometer pipe is characterized by comprising the following steps:
connecting the liquid level monitoring device to a power source through a traction device;
the liquid level monitoring device is in communication connection with the server;
placing a liquid level monitoring device in a piezometer tube;
the server monitors the signal of the liquid level monitoring device, and when the liquid level monitoring device sends a water level signal, the liquid level monitoring device is lifted upwards.
2. An automatic monitoring and alarming method for the water level of a dyke pressure-measuring pipe according to claim 1, characterized in that a designed infiltration line or an infiltration line for marking a warning water level is arranged in the pressure-measuring pipe, and when a liquid level monitoring device connected with the tail end of the traction device is superposed with the designed infiltration line or the infiltration line, the server judges that the water level reaches the warning value.
3. An automatic monitoring and alarming method for the water level of a dam piezometer according to claim 1, characterized in that if the liquid level detection device touches the water surface in the descending process of the liquid level monitoring device, the water level data is reported to the server, the system automatically judges which monitoring mode the water level data meets the operation condition, and then the monitoring mode under the operation condition is executed.
4. An embankment pressure pipe water level monitoring alarm method according to claim 1, wherein when the water level monitoring device is communicatively connected to the server, a wireless connection is adopted.
5. An automated dam piezometer tube water level monitoring alarm method according to claim 1, wherein the lower limit monitoring mode is operated when the server monitors that the water level in the piezometer tube is below the lowest set value or in a no-water state.
6. An automated dam piezometer tube water level monitoring alarm method according to claim 1, wherein when the server monitors that the water level in the piezometer tube is greater than or equal to the lowest set value elevation and less than the saturation line water level elevation, the normal monitoring mode is operated.
7. An automated dam piezometer tube water level monitoring and alarming method according to claim 1, wherein when the server monitors that the water level in the piezometer tube is greater than or equal to the water level elevation of the saturation line and less than the highest set value water level elevation, the early warning monitoring mode is operated.
8. An automated dam piezometer tube water level monitoring alarm method according to claim 1, wherein when the server monitors that the elevation of the water level in the piezometer tube is equal to or greater than the highest set value elevation, the alarm monitoring mode is operated.
9. An automated dam piezometer tube water level monitoring alarm method according to claim 8, characterized in that when the server monitors through a level gauge that the water level in the tube is about to reach or approach the maximum defined elevation, the server stops monitoring and gives an early warning through the client.
10. An automated dam piezometer tube water level monitoring alarm method according to claim 1, wherein the monitoring frequency is increased when the server monitors via a level meter that the water level in the tube is about to reach or approach the maximum defined elevation.
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