CN108007527A - A kind of differential pressure water level measurement system - Google Patents
A kind of differential pressure water level measurement system Download PDFInfo
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- CN108007527A CN108007527A CN201711183458.5A CN201711183458A CN108007527A CN 108007527 A CN108007527 A CN 108007527A CN 201711183458 A CN201711183458 A CN 201711183458A CN 108007527 A CN108007527 A CN 108007527A
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- temperature
- water level
- measurement system
- pressure
- level measurement
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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
- G01F23/14—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 measurement of pressure
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a kind of differential pressure water level measurement system, including：Pressure sensor, tracheae, wherein, one end of tracheae is connected with pressure sensor, the tracheae madial wall has been provided at predetermined intervals multiple temperature sensors, each temperature sensor is used for the temperature value for gathering each temperature sensor corresponding position in water, and the corresponding temperature signal of the temperature value of collection is sent to central processing unit, central processing unit and by the pressure signal that each temperature signal and pressure sensor gather carries out that current level is calculated.Obviously, temperature sensor is provided at predetermined intervals in water body, so as to gather the temperature of the diverse location of water body, and then the temperature computation current level of each position of comprehensive water body, the problem of only low to water level measurement accuracy caused by the temperature acquisition of some specific location in water body is avoided, improves the accuracy of level measuring.
Description
Technical field
The present invention relates to water environment field, more particularly to a kind of differential pressure water level measurement system.
Background technology
In recent years, with the continuous exploitation of subterranean resource, many ecological environment problems is caused, therefore, are strengthened to underground
The monitoring of water is extremely urgent.
Traditional groundwater monitoring is mainly calculated using pressure difference water gauge height of water level, wherein, pressure difference water gauge is adopted
Sensor, which is introduced air into, with tracheae calculates height of water level by measuring the difference of the pressure of underwater pressure and water surface air, and
The actual height of water level and coolant-temperature gage are closely related, the density of Water Temperature water, so as to influence actual water level measurement accuracy indirectly.
Traditional height of water level measuring method is mounting temperature sensor measurement temperature and basis at pressure sensor in water-level gauge
The temperature and pressure measured calculates water level.But in the actual environment, in the different depth of water, the temperature of water also it is corresponding not
Together, so causing the water level precision of measurement not high using conventional water level gauge measuring method.
Therefore, how to solve the problems, such as water level measurement accuracy it is low be those skilled in the art's problem to be solved.
The content of the invention
It is an object of the invention to provide a kind of differential pressure water level measurement system, solve the problems, such as that water level measurement accuracy is low.
To achieve the above object, an embodiment of the present invention provides following technical solution：
On the one hand, an embodiment of the present invention provides a kind of differential pressure water level measurement system, including：Power-supply device, pressure sensing
Device, tracheae, described tracheae one end are connected with the pressure sensor, further include：It is provided at predetermined intervals on the outside of the tracheae
Multiple temperature sensors of wall, each temperature sensor are used to gather the temperature with each temperature sensor corresponding position in water
Angle value, and the corresponding temperature signal of each temperature value is sent to central processing unit；
The central processing unit is used to carry out the pressure signal that each temperature signal and the pressure sensor gather
Current level is calculated.
Preferably, each temperature sensor is specially One Wire thermometer.
Preferably, further include：Control circuit, the control circuit respectively with the central processing unit, the pressure sensing
Device, each temperature sensor connection；
The control circuit is used to control the pressure sensor periodically to gather water middle position where the pressure sensor
The temperature value of the pressure value put, the periodically collection of each temperature sensor and each temperature sensor corresponding position in water.
Preferably, further include：Memory, the memory are connected with the central processing unit.
Preferably, the power-supply device is specially the battery of 3800MAH 3.6V.
Preferably, the central processing unit includes：Signal processing circuit, the signal processing circuit are used for each temperature
Degree signal is converted to temperature value corresponding with each temperature signal, the pressure signal is converted to pressure value.
Preferably, further include：Communication module, the communication module are connected with the central processing unit.
Preferably, the communication module includes：RS485 communication interfaces.
As it can be seen that a kind of differential pressure water level measurement system disclosed by the embodiments of the present invention, including：Pressure sensor, tracheae, its
In, one end of tracheae is connected with pressure sensor, which has been provided at predetermined intervals multiple temperature sensors, each temperature
Degree sensor is used for the temperature value for gathering each temperature sensor corresponding position in water, and by the corresponding temperature of the temperature value of collection
Degree signal sends to central processing unit, central processing unit and is counted the pressure signal that each temperature signal and pressure sensor gather
Calculation obtains current level.It is clear that temperature sensor is provided at predetermined intervals in water body, so as to gather the difference of water body
The temperature of position, and then the temperature computation current level of each position of comprehensive water body, avoid only specific to some in water body
The problem of water level measurement accuracy caused by the temperature acquisition of position is low, improves the accuracy of level measuring.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of differential pressure water level measurement system structure diagram disclosed in the first embodiment of the invention；
Fig. 2 is a kind of differential pressure water level measurement system structure diagram disclosed in second of embodiment of the invention；
Fig. 3 is a kind of differential pressure water level measurement system structure diagram disclosed in the third embodiment of the invention；
Fig. 4 is a kind of differential pressure water level measurement system structure diagram disclosed in the 4th kind of embodiment of the invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
The embodiment of the invention discloses a kind of differential pressure water level measurement system, solve the problems, such as that water level measurement accuracy is low.
Fig. 1 is referred to, Fig. 1 is a kind of differential pressure water level measurement system structural representation disclosed in the first embodiment of the invention
Figure, differential pressure water level measurement system 10 include：Power-supply device 101, pressure sensor 102, tracheae 103, wherein, the one of tracheae 103
End is connected with pressure sensor 102；103 lateral wall of tracheae has been provided at predetermined intervals multiple temperature sensors 104, and each temperature passes
Sensor 104 is used to gathering the temperature value with each temperature sensor 104 corresponding position in water, and by the corresponding temperature of each temperature value
Degree signal is sent to central processing unit 105, wherein, central processing unit 105 is used to adopt each temperature signal and pressure sensor 102
The pressure signal of collection carries out that current level is calculated.
Specifically, in the present embodiment, the type of pressure sensor 102 does not limit.
One end of tracheae 103 is connected with pressure sensor 102, and the other end is located on horizontal plane, with introduce horizontal plane it
On air detection current pressure sensor 102 position in water pressure size.Wherein, tracheae 103 is preferably perpendicular to
Horizontal plane is placed uniformly to introduce outside air.In view of the portability of whole system, tracheae 103 can be plastics tracheae, when
So, or other kinds of tracheae, herein and is not construed as limiting.
103 lateral wall of tracheae has been provided at predetermined intervals multiple temperature sensors 104.Wherein, predetermined space can include
Following two situations, first, the vertical spacing between adjacent temperature sensor 104 is identical, second, being passed with tracheae 103 and pressure
102 junction of sensor is starting point, and the interval between adjacent temperature sensor 104 is successively decreased with arithmetic progression.Certainly, predetermined space
There can be other setting means, herein and be not construed as limiting.Each temperature sensor 104 corresponds to collection and exists with each temperature sensor 104
The temperature of corresponding position in water.
Temperature sensor 104 can be PT1000, DS18B20, One Wire thermometer.Certainly, according to actual water body ring
Border, temperature sensor 104 can also be other kinds of sensor, herein and be not construed as limiting.
Central processing unit 105 includes signal processing circuit, computing module, and signal processing circuit is used for each temperature sensor
The pressure signal that the temperature signal and pressure sensor 102 of 104 collections gather is converted to temperature value and pressure value.Computing
Module is used to each temperature value and pressure value progress computing obtaining current level, wherein, computing module can specifically divide
Carried out for following two steps, the first step, computing module first obtains the pressure value of the collection of pressure sensor 102 and apart from pressure
The Temperature numerical calculation that the nearest temperature sensor 104 of force snesor 102 gathers goes out thick water level, and thick water level is water level substantially；
Second step, computing module obtains again to be provided at predetermined intervals in the temperature of the collection of other temperature sensors 104 of 103 lateral wall of tracheae
Number of degrees value, carries out further computing with reference to the thick water level that the first step calculates and obtains accurate water level.
As it can be seen that a kind of differential pressure water level measurement system disclosed by the embodiments of the present invention, including：Pressure sensor, tracheae, its
In, one end of tracheae is connected with pressure sensor, which has been provided at predetermined intervals multiple temperature sensors, each temperature
Degree sensor is used for the temperature value for gathering each temperature sensor corresponding position in water, and by the corresponding temperature of the temperature value of collection
Degree signal sends to central processing unit, central processing unit and is counted the pressure signal that each temperature signal and pressure sensor gather
Calculation obtains current level.It is clear that temperature sensor is provided at predetermined intervals in water body, so as to gather the difference of water body
The temperature of position, and then the temperature computation current level of each position of comprehensive water body, avoid only specific to some in water body
The problem of water level measurement accuracy caused by the temperature acquisition of position is low, improves the accuracy of level measuring.
Based on above-described embodiment, in the present embodiment, each temperature sensor 104 is specially One Wire thermometer.
Specifically, in the present embodiment, it may not need using One Wire thermometer and powered by power-supply device 101 to it, from
And realize the measurement to water temperature.
Based on above-described embodiment, in the present embodiment, surveyed when using the differential pressure water level measurement system in the embodiment of the present invention
After amount completes a water level accurate measurement amount, significant change can't occur for water level in a period of time, therefore, during this period of time can be with
Measurement water level is not had to temporarily.Water level is being measured again after a period of time, so as to achieve the purpose that periodic measurement.To reach this mesh
, an embodiment of the present invention provides second of embodiment, refers to Fig. 2, and Fig. 2 is a kind of disclosed in second of embodiment of the invention
Differential pressure water level measurement system structure diagram；Differential pressure water level measurement system 10 further includes：Control circuit 106, wherein, control circuit
106 are connected with central processing unit 105, pressure sensor 102 and each temperature sensor 104 respectively；Control circuit 106 is used to control
Pressing pressure sensor 102 periodically gathers the pressure value of position, each temperature sensor 104 weeks in 102 place water of pressure sensor
Phase property gathers the temperature value with each temperature sensor 104 corresponding position in water.
Specifically, in the present embodiment, after central processing unit 105 completes a level measuring, control electricity is sent a command to
Road 106, control circuit 106 control temperature sensor 104 and pressure sensor 102 to stop data collection according to the instruction.When
During to next collection period, central processing unit 105 sends detection instruction to control circuit 106, and control circuit 106 is according to the inspection
Survey instruction control temperature sensor 104 and pressure sensor 102 carries out the collection of temperature data and pressure data.
It should be noted that the collection period in the present embodiment is configured according to actual water body environment, herein not
It is construed as limiting.
As it can be seen that in the present embodiment, the periodically collection of temperature sensor and pressure sensor is controlled to work as by control circuit
The temperature value and pressure value of preceding water body.So as to avoid temperature sensor and pressure sensor continuous firing, reach energy saving
Purpose.
Based on above-described embodiment, in the present embodiment, in order to which temperature sensor 104 and pressure sensor 102 are gathered
Data can carry out convenient storage administrative staff and checked in the later stage, please an embodiment of the present invention provides the third embodiment
Referring to Fig. 3, Fig. 3 is a kind of differential pressure water level measurement system structure diagram, differential pressure water level disclosed in the third embodiment of the invention
Measuring system 10 further includes：Memory 107, memory 107 are connected with central processing unit 105.
Specifically, in the present embodiment, the temperature signal that temperature sensor 104 exports is converted to temperature by central processing unit 105
Number of degrees value, transmission to memory 107 is stored after the pressure signal that pressure sensor 102 exports is converted to pressure value.
Based on above-described embodiment, in the present embodiment, power-supply device 101 is specially the battery of 3800MAH 3.6V.
Based on above-described embodiment, in the present embodiment, central processing unit 105 includes：Signal processing circuit, signal processing electricity
Road by each temperature signal for being converted to temperature value corresponding with each temperature signal, pressure signal is converted to pressure value.
Based on above-described embodiment, in the present embodiment, it is contemplated that the differential pressure water level measurement system in the present embodiment will be utilized
The current level measured is sent to administrative staff in time, an embodiment of the present invention provides the 4th kind of embodiment, refers to Fig. 4,
Fig. 4 is a kind of differential pressure water level measurement system structure diagram disclosed in the 4th kind of embodiment of the invention, as shown in figure 4, differential pressure water
Level measuring system 10 further includes：Communication module 108, communication module 108 are connected with central processing unit 105.
Specifically, in the present embodiment, after central processing unit 105 handles temperature signal and pressure signal, will
To the terminal device that is sent by communication module 108 to administrator of temperature value and pressure value shown, with real-time
Current level is reported to administrative staff.
Based on above-described embodiment, in the present embodiment, communication module 108 includes：RS485 communication interfaces.
It should be noted that the communication modes of the communication module 108 in the present embodiment can also be other forms, herein simultaneously
It is not construed as limiting.
A kind of differential pressure water level measurement system provided herein is described in detail above.Tool used herein
Body example is set forth the principle and embodiment of the application, and the explanation of above example is only intended to help to understand this Shen
Method and its core concept please.It should be pointed out that for those skilled in the art, the application is not being departed from
On the premise of principle, some improvement and modification can also be carried out to the application, these are improved and modification also falls into the application right
It is required that protection domain in.
Each embodiment is described by the way of progressive in specification, and what each embodiment stressed is and other realities
Apply the difference of example, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is referring to method part illustration
.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there are other identical element in the process, method, article or apparatus that includes the element.
Claims (8)
1. a kind of differential pressure water level measurement system, including：Power-supply device, pressure sensor, tracheae, described tracheae one end and the pressure
Force snesor connects, it is characterised in that further includes：
Be provided at predetermined intervals in multiple temperature sensors of the tracheae lateral wall, each temperature sensor be used to gathering with
The temperature value of each temperature sensor corresponding position in water, and the corresponding temperature signal of each temperature value is sent to center
Processor；
The central processing unit is used to be calculated the pressure signal that each temperature signal and the pressure sensor gather
Obtain current level.
2. differential pressure water level measurement system according to claim 1, it is characterised in that each temperature sensor is specially one
Line thermometer.
3. differential pressure water level measurement system according to claim 1, it is characterised in that further include：Control circuit, the control
Circuit is connected with the central processing unit, the pressure sensor, each temperature sensor respectively；
The control circuit is used to control the pressure sensor periodically to gather position in the water of the pressure sensor place
The temperature value of the periodically collection of pressure value, each temperature sensor and each temperature sensor corresponding position in water.
4. differential pressure water level measurement system according to claim 3, it is characterised in that further include：Memory, the memory
It is connected with the central processing unit.
5. differential pressure water level measurement system according to claim 1, it is characterised in that the power-supply device is specially
The battery of 3800MAH 3.6V.
6. differential pressure water level measurement system according to claim 1, it is characterised in that the central processing unit includes：Signal
Process circuit, the signal processing circuit are used to each temperature signal being converted to temperature corresponding with each temperature signal
Numerical value, the pressure signal are converted to pressure value.
7. differential pressure water level measurement system according to claim 4, it is characterised in that further include：Communication module, the communication
Module is connected with the central processing unit.
8. differential pressure water level measurement system according to claim 7, it is characterised in that the communication module includes：RS485 leads to
Communication interface.
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| CN201711183458.5A CN108007527A (en) | 2017-11-23 | 2017-11-23 | A kind of differential pressure water level measurement system |
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| CN201711183458.5A CN108007527A (en) | 2017-11-23 | 2017-11-23 | A kind of differential pressure water level measurement system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109738039A (en) * | 2019-01-21 | 2019-05-10 | 常德天马电器股份有限公司 | A kind of sponge city river water level acquisition system and acquisition method |
| CN114661073A (en) * | 2022-02-15 | 2022-06-24 | 华能武汉发电有限责任公司 | Water level control method and device for slag conveyor |
| US11374783B2 (en) * | 2019-02-19 | 2022-06-28 | Xcspec, Inc. | Systems and methods for differential pressure determination and control |
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| CN109738039A (en) * | 2019-01-21 | 2019-05-10 | 常德天马电器股份有限公司 | A kind of sponge city river water level acquisition system and acquisition method |
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| CN114661073A (en) * | 2022-02-15 | 2022-06-24 | 华能武汉发电有限责任公司 | Water level control method and device for slag conveyor |
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Application publication date: 20180508 |