CN206095356U - Differential pressure water level measuring apparatu - Google Patents
Differential pressure water level measuring apparatu Download PDFInfo
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- CN206095356U CN206095356U CN201621177212.8U CN201621177212U CN206095356U CN 206095356 U CN206095356 U CN 206095356U CN 201621177212 U CN201621177212 U CN 201621177212U CN 206095356 U CN206095356 U CN 206095356U
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- 238000001514 detection method Methods 0.000 claims description 24
- 238000005070 sampling Methods 0.000 claims description 16
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- 238000012544 monitoring process Methods 0.000 description 8
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- 229910000831 Steel Inorganic materials 0.000 description 4
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Abstract
The utility model discloses a differential pressure water level measuring apparatu, including main probe, assist probe and receiving module, wherein, main probe is used for detecting pressure under water to pressure cycle becomes first pressure value under water, assist the probe with main probe links to each other for detect air pressure, and convert air pressure into second pressure value to, receiving module with assist probe communication and link to each other, be used for receiving first pressure value and second pressure value are with the basis the water level value is confirmed to first pressure value and second pressure value. Through the utility model provides a pair of differential pressure water level measuring apparatu can eliminate atmospheric pressure's influence for measured data is more accurate, and the data promptness is higher, has avoided artificial error, has guaranteed data reality.
Description
Technical Field
The embodiment of the utility model provides a relate to and measure technical field, especially relate to a differential pressure water level measuring apparatu.
Background
In China, with the acceleration of urban processes, a large number of foreign people enter cities, so that the urban population density is increased sharply. In order to solve the living problem of people, a large number of high-rise buildings are built in a large number of large cities, and along with the rapid development of national economy and the improvement of the technological level in China, a large number of symbolic municipal works are developing at an unprecedented scale and at an unprecedented speed, such as bridges, subways, tunnels, elevated roads and the like. The large-scale engineering construction needs foundation pit excavation, the scale and the difficulty are larger and larger, and more problems occur, such as collapse of the foundation pit, water accumulation in the pit, road cracking caused by uneven settlement of the ground around the foundation pit, house cracking and even inclined collapse and the like. Statistically, a significant proportion of the problematic pit projects are due to groundwater changes. These accidents not only have a significant impact on the foundation pit itself, but also cause little damage to the surrounding environment. Therefore, it is necessary to monitor and study the groundwater problem in the foundation pit engineering, and there are many problems in the existing foundation pit engineering in the groundwater level monitoring project.
At present, the method for monitoring the underground water level of the foundation pit mainly utilizes a steel rule water level meter to measure the underground water level, the steel rule water level meter mainly comprises a probe, a steel rule cable, a receiving system and a winding frame, the winding frame is manually controlled by a measurer to place the probe into water during measurement, and at the moment that the probe touches the water surface, scales on the steel rule cable are recorded through buzzing or lighting of the receiving system and the like, so that the monitoring data of the underground water level are obtained. The water level monitoring and transmission mode is backward, so that the accuracy of data is not high, and the requirement on modern scientific monitoring of underground water cannot be met. Particularly, the method mainly has two defects, on one hand, the buried depth of underground water is large, so that large observation errors are caused, and on the other hand, due to the difference between the service level and the responsibility of an observation individual, the observed data is good and irregular, the management method is backward, artificial fake data occurs, the accuracy of the data cannot be guaranteed, and great trouble is caused for scientific research and designers to analyze and research the underground water. On the other hand, the observed water level data is manually recorded and reported step by letters or telephones, and the probability of errors in transmission is high.
In recent years, modern monitoring devices such as a buoy type water level meter, a pressure sensor type water level meter, an ultrasonic water level meter and the like are gradually developed and are respectively applied to a seismic system, a water conservancy system and an environmental protection system, but further improvement on special functions and performance is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a differential pressure water level measuring apparatu to solve foundation ditch groundwater monitoring data inaccuracy problem.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a differential pressure water level measuring instrument which characterized in that, includes main probe, assists probe and receiving module, wherein:
the main probe is used for detecting underwater pressure and converting the underwater pressure into a first pressure value;
the auxiliary probe is connected with the main probe and used for detecting air pressure and converting the air pressure into a second pressure value;
the receiving module is in communication connection with the auxiliary probe and used for receiving the first pressure value and the second pressure value so as to determine a water level value according to the first pressure value and the second pressure value.
Further, in the differential pressure water level measuring instrument, the main probe and/or the auxiliary probe comprise a pressure detection probe, an AD sampling module, a microprocessor, a memory and a 485 communication interface; wherein,
the pressure detection probe is used for detecting the pressure of the environment;
the AD sampling module is connected with the pressure detection probe and used for changing the pressure result output by the pressure detection probe and converting the pressure result into a digital signal;
the microprocessor is connected with the AD acquisition module and used for processing the digital signals from the AD acquisition module and converting the digital signals into pressure values according to calibration;
the memory is connected with the microprocessor and used for storing the detected pressure value;
one end of the 485 communication interface is connected with the microprocessor, and the other end of the 485 communication interface is connected with the receiving module and used for transmitting the pressure value of the microprocessor to the receiving module.
Furthermore, in the differential pressure water level measuring instrument, the main probe and the auxiliary probe also comprise a power supply system;
and the power supply system is respectively connected with the pressure detection probe, the AD sampling module, the microprocessor, the memory and the 485 communication interface and is used for providing a power supply.
Further, in the differential pressure water level measuring instrument, the microprocessor of the main probe is connected with the microprocessor of the auxiliary probe through a 485 communication interface, and is used for transmitting the first pressure value to the microprocessor of the auxiliary probe and then transmitting the first pressure value to the receiving module through the 485 communication interface.
Further, in the differential pressure water level measuring instrument, the pressure detecting probe is a pressure sensor for detecting a change in pressure and outputting the detected change in pressure as a voltage.
Further, in the differential pressure water level measuring instrument, the receiving module is a local handheld device, and the local handheld device is configured to calculate and display a water level value according to the first pressure value and the second pressure value.
Further, in the differential pressure water level measuring instrument, the receiving module is a general wireless module, and the general wireless module is configured to transmit the first pressure value and the second pressure value to a user client, so as to calculate and display a water level value according to the first pressure value and the second pressure value.
The utility model provides a pair of differential pressure water level measuring apparatu can eliminate atmospheric pressure's influence for measured data is more accurate, and data timeliness is higher, has avoided artificial error, has guaranteed the data authenticity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1A is a block diagram of an overall structure of a differential pressure water level measuring instrument according to an embodiment of the present invention;
fig. 1B is a schematic view of a usage status of a differential pressure water level measuring instrument according to an embodiment of the present invention;
fig. 2 is a block diagram of an overall structure of a differential pressure water level measuring instrument according to a second embodiment of the present invention;
fig. 3 is a block diagram of an overall structure of a differential pressure water level measuring instrument provided by the third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1A is a block diagram of an overall structure of a differential pressure water level measuring instrument according to an embodiment of the present invention. As shown in FIG. 1A, the embodiment of the utility model provides a differential pressure water level measuring instrument, through the cooperation work of main probe and supplementary probe, solve groundwater bit data not accurate untimely and easily appear human error's problem.
The differential pressure water level measuring instrument comprises a main probe 10, an auxiliary probe 20 and a receiving module 30, wherein:
the main probe 10 is used for detecting underwater pressure and converting the underwater pressure into a first pressure value;
the auxiliary probe 20 is connected with the main probe 10, and is used for detecting air pressure and converting the air pressure into a second pressure value;
the receiving module 30 is connected to the auxiliary probe 20 in a communication manner, and is configured to receive the first pressure value and the second pressure value, so as to determine a water level value according to the first pressure value and the second pressure value.
In the above solution, the receiving module 30 may be a local handheld device, and may also be a general wireless module.
In particular, in one aspect, the receiving module 30 may be the local handheld device. And after the local handheld device gives a measurement instruction, carrying out data measurement on site, and calculating and displaying a water level value according to the first pressure value and the second pressure value by the local handheld device.
On the other hand, the receiving module 30 may also be a general wireless module. The universal wireless module starts to measure data after receiving a measurement instruction of a user client, then transmits a first measured pressure value and a second measured pressure value to the user client through a mobile operator, and then the user client calculates and displays a water level value according to the first pressure value and the second pressure value. The universal wireless module can realize long-distance water level detection and transmit the water level detection to a server accessed to the Internet in a wireless automatic mode, so that the environment with high requirement on data transmission timeliness is met.
Specifically, please refer to fig. 1B in the implementation process of this embodiment, and fig. 1B is a schematic view of a usage status of a differential pressure water level measuring instrument according to an embodiment of the present invention. In the hole for measuring water level, the main probe 10 is located under water, the auxiliary probe 20 is located in air, and the distance H from the main probe to the orifice mounting plate is known and is determined by the length of the cable between the main probe 10 and the auxiliary probe 20. When the auxiliary probe 20 receives an external instruction to measure the water level, the auxiliary probe 20 sends the instruction to the main probe 10 through the internal 485 communication interface, after a first returned pressure value P1 is obtained, a second pressure value P2 at the auxiliary probe 20 is measured, a water depth pressure value P is P1-P2, and a corresponding water level value h can be converted according to the relation between water and pressure (P is rho gh, and the liquid density g is 9.8 newton/kg). The pressure measured by the main probe and the auxiliary probe is an absolute pressure value. Finally, the distance X between the water surface and the orifice is H-H.
The utility model provides a pair of differential pressure water level measuring apparatu converts the pressure value into according to demarcating after recording pressure variation through main probe and supplementary probe, can eliminate atmospheric pressure's influence for measured data is more accurate, but also can automatic storage data, has just faced artificial error.
Example two
Fig. 2 is a block diagram of an overall structure of a differential pressure water level measuring instrument provided in the second embodiment of the present invention.
The main probe 10 comprises a pressure detection probe 11, an AD sampling module 12, a microprocessor 13, a memory 14 and a 485 communication interface 15;
the auxiliary probe 20 comprises a pressure detection probe 21, an AD sampling module 22, a microprocessor 23, a memory 24 and a 485 communication interface 25; wherein,
the pressure detection probe 11 and the pressure detection probe 21 are used for detecting the pressure of the environment;
the AD sampling module 12 and the AD sampling module 22 are respectively connected to the pressure detection probe 11 and the pressure detection probe 21, and are configured to change and convert pressure results output by the pressure detection probe 11 and the pressure detection probe 21 into digital signals;
the microprocessor 13 and the microprocessor 23 are respectively connected with the AD sampling module 12 and the AD sampling module 22, and are configured to process digital signals from the AD sampling module 12 and the AD sampling module 22 and convert the digital signals into pressure values according to a calibration;
the memory 14 and the memory 24 are respectively connected with the microprocessor 13 and the microprocessor 23 and used for storing detected pressure values;
one end of the 485 communication interface 15 is connected with the microprocessor 13, and the other end of the 485 communication interface is connected with the microprocessor 23, and is used for transmitting a first pressure value of the microprocessor 13 to the microprocessor 23;
one end of the 485 communication interface 25 is connected to the microprocessor 23, and the other end of the 485 communication interface is connected to the receiving module 30, and is configured to transmit the second pressure value of the microprocessor 23 and the received first pressure value of the microprocessor 13 to the receiving module 30.
The pressure detection probe 11 and the pressure detection probe 21 are pressure sensors for detecting a change in pressure and outputting the detected change in pressure as a voltage.
Specifically, the pressure sensor changes the resistance value of the sensing element, thereby changing the output voltage in the circuit.
It should be noted that, the pressure sensor converts the output voltage, i.e. the pressure signal, into a voltage signal after being stressed. The input-output relationship of the sensor is calibrated by a dedicated calibration device that performs a calibration function to determine the relationship between the pressure sensed by the sensor and the resulting output voltage.
The built-in memory 14 and the built-in memory 24 in the scheme can automatically store 1600 pieces of data, thereby avoiding errors of manual recording and ensuring the authenticity of monitored data.
In the above scheme, the microprocessor 13 of the main probe 10 is connected to the microprocessor 23 of the auxiliary probe 20 through the 485 communication interface 15, and is configured to transmit the first pressure value to the microprocessor 23 of the auxiliary probe 20, and then transmit the first pressure value to the receiving module 30 through the 485 communication interface 25.
The utility model provides a pair of differential pressure water level measuring apparatu can eliminate atmospheric pressure's influence for measured data is more accurate, and data timeliness is higher, has avoided artificial error, has guaranteed the data authenticity.
EXAMPLE III
Fig. 3 is a block diagram of an overall structure of a differential pressure water level measuring instrument provided by the third embodiment of the present invention.
On the basis of the second embodiment, the main probe and the auxiliary probe further comprise a power supply system; the power supply system can be shared or two, and independently supplies power to the main probe 10 and the auxiliary probe 20.
Optionally, the power system 16 is connected to the pressure detection probe 11, the AD sampling module 12, the microprocessor 13, the memory 14, and the 485 communication interface 15, respectively, and is configured to provide a power source.
The power supply system 26 is respectively connected with the pressure detection probe 21, the AD sampling module 22, the microprocessor 23, the memory 24 and the 485 communication interface 25, and is used for supplying power.
Specifically, if the main probe 10 and the auxiliary probe 20 are fixedly arranged at the measured position for long-time monitoring and the measured value is obtained wirelessly, preferably, the power system 16 and the power system 26 are solar power systems, which have long service life, stable power supply, energy saving and environmental protection. Conversely, if the primary probe 10 and secondary probe 20 do not require long-term monitoring, then the power system 16 and the power system 26 need to be generally rechargeable batteries.
The embodiment of the utility model provides a through using electrical power generating system, solved the measurement system and needed the electricity problem at the during operation.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (7)
1. The utility model provides a differential pressure water level measuring instrument which characterized in that, includes main probe, assists probe and receiving module, wherein:
the main probe is used for detecting underwater pressure and converting the underwater pressure into a first pressure value;
the auxiliary probe is connected with the main probe and used for detecting air pressure and converting the air pressure into a second pressure value;
the receiving module is in communication connection with the auxiliary probe and used for receiving the first pressure value and the second pressure value so as to determine a water level value according to the first pressure value and the second pressure value.
2. The differential pressure water level gauge according to claim 1, wherein the main probe and/or the auxiliary probe comprises a pressure detection probe, an AD sampling module, a microprocessor, a memory and a 485 communication interface; wherein,
the pressure detection probe is used for detecting the pressure of the environment;
the AD sampling module is connected with the pressure detection probe and used for changing the pressure result output by the pressure detection probe and converting the pressure result into a digital signal;
the microprocessor is connected with the AD acquisition module and used for processing the digital signals from the AD acquisition module and converting the digital signals into pressure values according to calibration;
the memory is connected with the microprocessor and used for storing the detected pressure value;
one end of the 485 communication interface is connected with the microprocessor, and the other end of the 485 communication interface is connected with the receiving module and used for transmitting the pressure value of the microprocessor to the receiving module.
3. The differential pressure water level gauge of claim 2, wherein the primary and secondary probes further comprise a power supply system;
and the power supply system is respectively connected with the pressure detection probe, the AD sampling module, the microprocessor, the memory and the 485 communication interface and is used for providing a power supply.
4. The differential pressure water level measuring instrument according to claim 2, wherein the microprocessor of the main probe is connected to the microprocessor of the auxiliary probe through a 485 communication interface for transmitting the first pressure value to the microprocessor of the auxiliary probe and then to the receiving module through the 485 communication interface.
5. The differential pressure water level measuring instrument according to claim 2, wherein the pressure detecting probe is a pressure sensor for detecting a change in pressure and outputting it as a voltage.
6. The differential pressure water level measuring instrument according to claim 1, wherein the receiving module is a local handheld device, and the local handheld device is configured to calculate and display a water level value according to the first pressure value and the second pressure value.
7. The differential pressure water level gauge according to claim 1, wherein the receiving module is a universal wireless module for transmitting the first and second pressure values to a user client for calculating and displaying a water level value according to the first and second pressure values.
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| CN201621177212.8U CN206095356U (en) | 2016-10-27 | 2016-10-27 | Differential pressure water level measuring apparatu |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108814502A (en) * | 2018-06-29 | 2018-11-16 | 歌尔股份有限公司 | A kind of dish-washing machine level measuring control method and system |
| CN110514265A (en) * | 2019-09-19 | 2019-11-29 | 吉林大学 | Water level monitoring system and monitoring method |
| CN112362849A (en) * | 2020-11-11 | 2021-02-12 | 华北水利水电大学 | Device and method for measuring water inrush and sand inrush separate phase content in water inrush and sand inrush experiment |
-
2016
- 2016-10-27 CN CN201621177212.8U patent/CN206095356U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108814502A (en) * | 2018-06-29 | 2018-11-16 | 歌尔股份有限公司 | A kind of dish-washing machine level measuring control method and system |
| CN110514265A (en) * | 2019-09-19 | 2019-11-29 | 吉林大学 | Water level monitoring system and monitoring method |
| CN112362849A (en) * | 2020-11-11 | 2021-02-12 | 华北水利水电大学 | Device and method for measuring water inrush and sand inrush separate phase content in water inrush and sand inrush experiment |
| CN112362849B (en) * | 2020-11-11 | 2023-10-31 | 华北水利水电大学 | Device and method for measuring phase separation content of water burst and sand burst in water burst sand burst experiment |
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