CN112161668B - Water tank liquid level detection system, water tank system, method and application - Google Patents
Water tank liquid level detection system, water tank system, method and application Download PDFInfo
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- CN112161668B CN112161668B CN202010862946.4A CN202010862946A CN112161668B CN 112161668 B CN112161668 B CN 112161668B CN 202010862946 A CN202010862946 A CN 202010862946A CN 112161668 B CN112161668 B CN 112161668B
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- 239000007788 liquid Substances 0.000 title claims abstract description 184
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
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Classifications
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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
- G01F23/22—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
-
- 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
- G01F23/80—Arrangements for signal processing
- G01F23/802—Particular electronic circuits for digital processing equipment
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The invention relates to a water tank liquid level detection system, a water tank system, a method and application, wherein the water tank liquid level detection system comprises an odd number of liquid level switches which can be arranged on a water tank along the axis direction of the water tank, the liquid level switches are numbered in sequence from the bottom of the water tank to the top or from the top of the water tank to the bottom, the liquid level switch corresponding to the middle number is a normally open liquid level switch and is connected in series into a signal channel, the other liquid level switches are connected in series into a signal channel, the absolute value of the difference value between the number of the two liquid level switches corresponding to the same signal channel and the middle number is equal, and the two liquid level switches in the same signal channel are respectively the normally closed liquid level switch and the normally open liquid level switch.
Description
Technical Field
The invention relates to the technical field of liquid level detection, in particular to a water tank liquid level detection system, a water tank method and application.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The inventor finds that in the acquisition of the digital quantity, a plurality of liquid level switches are basically used for acquiring a plurality of paths of signals, the more the liquid level switches are used, the more the number of channels for signal acquisition is increased, and the more the investment of the detection system equipment is caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a water tank liquid level detection system which can reduce the number of signal acquisition passages and reduce the equipment investment of the detection system.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a water tank liquid level detection system, including an odd number of liquid level switches that can be arranged on a water tank along an axis direction of the water tank, where the liquid level switches have serial numbers in a direction from the bottom of the water tank to the top or from the top of the water tank to the bottom, where the liquid level switch corresponding to a middle serial number is a normally open liquid level switch and is connected in series in one signal channel, and among the other liquid level switches, two liquid level switches are connected in series in one signal channel, the absolute value of the difference between the serial numbers of the two liquid level switches corresponding to the same signal channel and the middle serial number is equal, and the two liquid level switches in the same signal channel are respectively a normally closed liquid level switch and a normally open liquid level switch.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein one end of the signal channel is connected to the signal input element, and the other end of the signal channel is connected to the signal receiving element.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, where the signal input element is a power supply, and the input signal of the signal channel is a voltage signal.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, and the signal receiving element is a controller.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, where the signal receiving element is connected to a monitoring terminal, and is capable of displaying a received signal transmitted by the signal channel on the monitoring terminal.
In a second aspect, an embodiment of the present invention provides a water tank system, which includes a water tank and the water tank liquid level detection system of the first aspect, wherein an odd number of liquid level switches are mounted on a wall of the water tank along an axial direction of the water tank.
In combination with the second aspect, embodiments of the present invention provide a possible implementation of the second aspect, the plurality of level switches being equally spaced along the wall of the tank.
In a third aspect, an embodiment of the present invention provides a method for detecting a liquid level of a water tank in the second aspect: when the liquid level in the water tank reaches different liquid levels, the liquid level switch can be triggered to work, so that signals output by a plurality of signal channels have different arrangement combinations corresponding to the liquid level, and the corresponding liquid level information in the water tank is judged through the arrangement combinations obtained by a plurality of output signals.
In a fourth aspect, an embodiment of the present invention provides a liquid supply mechanism incorporating the tank system of the second aspect.
In a fifth aspect, embodiments of the present invention provide a liquid collection mechanism incorporating a cistern system according to the second aspect.
The invention has the beneficial effects that:
according to the detection system, except for the liquid level switch with the middle serial number, two liquid level switches in the other liquid level switches share one signal channel, one of the two liquid level switches in the same signal channel is a normally closed liquid level switch, and the other one of the two liquid level switches in the same signal channel is a normally open liquid level switch.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the overall structure of embodiment 2 of the present invention;
FIG. 2 is a schematic diagram of the working principle of embodiment 2 of the present invention;
the liquid level control device comprises a liquid level switch 1.1, a liquid level switch 2.2, a liquid level switch 3.3, a liquid level switch 4.4, a liquid level switch 5.5, a water tank 6, a second signal channel 7, a first signal channel 8 and a third signal channel 9.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Just as the introduction of background art, a liquid level switch of current water tank liquid level detection needs to correspond a signal channel, and signal channel sets up a large amount, has increased the equipment investment, to above-mentioned problem, this application has proposed a water tank liquid level detection system.
In a typical embodiment 1 of this application, a water tank liquid level detection system, including odd number can follow the liquid level switch that water tank axis direction arranged on the water tank, a plurality of liquid level switches have and number according to the order from water tank bottom to top or water tank top to bottom direction, wherein, the liquid level switch that middle serial number corresponds is for normally opening liquid level switch and establish ties into a signal channel, among other liquid level switches, two liquid level switches are in series into a signal channel, the serial number of two liquid level switches that same signal channel corresponds equals with the absolute value of the difference of middle serial number, and two liquid level switches in same signal channel are normally closed liquid level switch and normally open liquid level switch respectively, signal channel's signal input part and power are connected, and the power can be signal channel input voltage signal, utilize voltage signal as input signal, signal channel's output is connected with the controller, and the controller is as signal receiving element, and when signal channel switched on, the controller can receive first signal, and when signal channel breaks off, the controller can receive the second signal.
The controller is connected with the monitoring terminal, can show the signal that receives at the monitoring terminal, makes things convenient for the staff to judge the liquid level information, the monitoring terminal can adopt the computer, also can adopt mobile monitoring terminal such as cell-phone or panel computer.
Example 2:
as shown in fig. 1-2, this embodiment discloses a water tank system, including water tank 6 and embodiment 1 the water tank liquid level detection system, liquid level switch sets up five, and liquid level switch equidistant installs on the tank wall of water tank along the water tank axis direction, numbers five liquid level switches from bottom to top in proper order, and from bottom to top is by the water tank bottom to top direction promptly, and five liquid level switches are No. 1 liquid level switch 1, no. 2 liquid level switch 2, no. 3 liquid level switch 3, no. 4 liquid level switch 4 and No. 5 liquid level switch 5, no. 4 are the serial number in the middle of being respectively.
No. 1 liquid level switch sets up the bottommost position at the water tank, be 0% liquid level switch, no. 2 liquid level switch sets up the liquid level position when the water level reaches 25% of full water level in the water tank, be 25% liquid level switch, no. 3 liquid level switch sets up the middle part position at the water tank, be 50% liquid level switch, no. 4 liquid level switch sets up the liquid level position when the water level reaches 75% of full water level, be 75% liquid level switch, no. 5 liquid level switch sets up the topmost position that is the water tank at the full water level position of water tank, be 100% liquid level switch.
Wherein:
the No. 3 liquid level switch is connected in series into the second signal channel 7 and is a normally open liquid level switch.
No. 1 liquid level switch and No. 5 liquid level switch are connected in series into first signal channel 8, and No. 1 liquid level switch is normally open liquid level switch, and No. 5 liquid level switch is normally closed liquid level switch.
No. 2 liquid level switch and No. 4 liquid level switch are connected in series into third signal channel 9, and No. 2 liquid level switch is normally open liquid level switch, and No. 4 liquid level switch is normally closed liquid level switch.
When the signal channel is on, the signal input to the controller is 1, and when the signal channel is off, the signal input to the controller is 0.
Example 3:
the embodiment discloses a liquid level detection method of a water tank system in the embodiment 2, which comprises the following steps:
when the water tank is empty, the 100% liquid level switch in the first signal channel is closed, the 0% liquid level switch is opened, and the output signal of the first signal channel is 0; the 50% liquid level switch of the second signal channel is disconnected, and the output signal of the second signal channel is 0; and a 75% liquid level switch in the third signal channel is closed, a 25% liquid level switch is opened, and the output signal of the third signal channel is 0.
When the liquid level of the water tank is higher than 0% and lower than 25%, the 100% liquid level of the first signal channel is closed, the 0% liquid level is closed, and the output signal of the first signal channel is 1; the 50% liquid level switch of the second signal channel is disconnected, and the output signal of the second signal channel is 0; and a 75% liquid level switch in the third signal channel is closed, a 25% liquid level switch is opened, and the output signal of the third signal channel is 0.
When the liquid level of the water tank is higher than 25% and less than 50%, a 100% liquid level switch of the first signal channel is closed, a 0% liquid level switch is closed, and an output signal of the first signal channel is 1; the 50% liquid level switch of the second signal channel is disconnected, and the output signal of the second signal channel is 0; and a 75% liquid level switch in the third signal channel is closed, a 25% liquid level switch is closed, and the output signal of the third signal channel is 1.
When the liquid level of the water tank is higher than 50% and less than 75%, a 100% liquid level switch of the first signal channel is closed, a 0% liquid level switch is closed, and an output signal of the first signal channel is 1; the 50% liquid level switch of the second signal channel is closed, and the output signal of the second signal channel is 1; and a 75% liquid level switch in the third signal channel is closed, a 25% liquid level switch is closed, and the output signal of the third signal channel is 1.
When the liquid level of the water tank is higher than 75% and is less than 100%, a 100% liquid level switch of the first signal channel is closed, a 0% liquid level switch is closed, and an output signal of the first signal channel is 1; the 50% liquid level switch of the second signal channel is closed, and the output signal of the second signal channel is 1; and a 75% liquid level switch in the third signal channel is switched off, a 25% liquid level switch is switched on, and the output signal of the third signal channel is 0.
When the liquid level of the purified water tank reaches 100%, the 100% liquid level switch of the first signal channel is switched off, the 0% liquid level switch is switched on, and the output signal of the first signal channel is 0; the 50% liquid level switch of the second signal channel is closed, and the output signal of the second signal channel is 1; and a 75% liquid level switch in the third signal channel is switched off, a 25% liquid level switch is switched on, and the output signal of the third signal channel is 1.
The output signal permutation and combination table of the three signal channels is as follows:
table 1: output signal meter
| First signal path | Second signal path | Third signal | Level information | |
| 0 | 0 | 0 | |
|
| 0 | 0 | 1 | |
|
| 0 | 1 | 0 | The liquid level of the water tank is 100% | |
| 0 | 1 | 1 | |
|
| 1 | 0 | 0 | The liquid level of the water tank is 0% | |
| 1 | 0 | 1 | The liquid level of the water tank is 25 |
|
| 1 | 1 | 0 | The liquid level of the water tank is 75 |
|
| 1 | 1 | 1 | The liquid level of the water tank is 50 percent |
By adopting the water tank system of the embodiment, the liquid level information in the water tank can be judged according to the permutation and combination of different output signals, and the two liquid level switches share one signal channel, so that the number of the signal channels is greatly reduced, and the equipment investment is reduced.
Example 4:
this embodiment discloses a liquid supply mechanism for supplying liquid to other apparatuses, and the tank system according to embodiment 2 is mounted, and the other structures adopt the structures of the existing liquid supply mechanisms, and will not be described in detail herein.
Example 5:
the embodiment discloses a liquid collecting mechanism for collecting liquid flowing out of other equipment, the water tank system described in embodiment 2 is installed, and other structures adopt the structures of the existing liquid collecting mechanism, and detailed description is omitted here.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A water tank liquid level detection system is characterized by comprising an odd number of liquid level switches which can be arranged on a water tank along the axis direction of the water tank, wherein the liquid level switches are sequentially numbered from the bottom of the water tank to the top or from the top of the water tank to the bottom, the liquid level switches corresponding to the middle number are normally open liquid level switches and are connected in series into a signal channel, the rest liquid level switches are connected in series into a signal channel, the absolute value of the difference value between the numbers of the two liquid level switches corresponding to the same signal channel and the middle number is equal, and the two liquid level switches in the same signal channel are respectively the normally closed liquid level switches and the normally open liquid level switches;
wherein:
the No. 3 liquid level switch is connected in series into the second signal channel and is a normally open liquid level switch;
the No. 1 liquid level switch and the No. 5 liquid level switch are connected in series into the first signal channel, the No. 1 liquid level switch is a normally open liquid level switch, and the No. 5 liquid level switch is a normally closed liquid level switch;
no. 2 liquid level switch and No. 4 liquid level switch are connected in series into third signal channel, and No. 2 liquid level switch is normally open liquid level switch, and No. 4 liquid level switch is normally closed liquid level switch.
2. The tank level sensing system of claim 1, wherein the signal path is connected to the signal input element at one end and to the signal receiving element at the other end.
3. The tank level detection system of claim 2, wherein the signal input element is a power source and the input signal of the signal path is a voltage signal.
4. The tank level detection system of claim 2, wherein the signal receiving element is a controller.
5. The system as claimed in claim 2, wherein the signal receiving element is connected to a monitor terminal for displaying the received signal transmitted by the signal channel.
6. A tank system comprising a tank and a tank level detection system as claimed in any one of claims 1 to 5, wherein an odd number of level switches are mounted on the wall of the tank in the direction of the tank axis.
7. The tank system of claim 6, wherein the plurality of level switches are equally spaced along the wall of the tank.
8. The method for detecting the liquid level of the water tank system as claimed in claim 6, wherein when the liquid level in the water tank reaches different liquid levels, the liquid level switch is triggered to operate, so that the signals output by the plurality of signal channels have different arrangement combinations corresponding to the liquid levels, and the corresponding liquid level information in the water tank is judged by obtaining the arrangement combinations of the plurality of output signals.
9. A liquid supply mechanism characterized by being equipped with the water tank system as recited in claim 6.
10. A liquid collection mechanism characterized by the fact that a water tank system as claimed in claim 6 is installed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010862946.4A CN112161668B (en) | 2020-08-25 | 2020-08-25 | Water tank liquid level detection system, water tank system, method and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010862946.4A CN112161668B (en) | 2020-08-25 | 2020-08-25 | Water tank liquid level detection system, water tank system, method and application |
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| CN112161668A CN112161668A (en) | 2021-01-01 |
| CN112161668B true CN112161668B (en) | 2022-12-06 |
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| CN115229988B (en) * | 2022-08-04 | 2023-08-15 | 徐州徐工施维英机械有限公司 | Monitoring method and system for aggregate feeding process of concrete stirring machine |
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| CN1148867C (en) * | 2002-01-17 | 2004-05-05 | 南京春辉科技实业有限公司 | Photovoltaic electric generation system automatically tracking sun |
| DE102005023119A1 (en) * | 2005-05-19 | 2007-01-18 | Infineon Technologies Ag | Mask programmable logic macro |
| DE102006009763B4 (en) * | 2006-03-01 | 2008-04-10 | Vega Grieshaber Kg | Circuit arrangement and method for monitoring the operation of a vibration limit switch and / or a level measuring device |
| CN101576782B (en) * | 2008-05-09 | 2011-01-12 | 精元电脑股份有限公司 | Digital board and its position acquisition method |
| CN103487106A (en) * | 2013-09-25 | 2014-01-01 | 国家电网公司 | Cable tunnel water level real-time monitoring device |
| CN204422091U (en) * | 2015-01-10 | 2015-06-24 | 苏州百汇特电子有限公司 | A kind of furnace temperature instrument |
| CN104670138B (en) * | 2015-01-26 | 2017-08-25 | 沙洲职业工学院 | Water inlet automatic window warning system in a kind of Automobile |
| CN105975093A (en) * | 2016-04-29 | 2016-09-28 | 厦门徕钿数控自动化有限公司 | Keyboard dot matrix acquisition device and method based on PLC (Programmable Logic Controller) |
| CN106197600A (en) * | 2016-06-21 | 2016-12-07 | 宁波中车时代电气设备有限公司 | The liquid level detection device of waste water container |
| CN109084481A (en) * | 2018-07-11 | 2018-12-25 | 珠海格力电器股份有限公司 | Liquid level switch, water heater and control method of water heater |
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Effective date of registration: 20230227 Address after: 215557 Zhengwen Road, Yushan High-tech Industrial Park, Changshu, Suzhou, Jiangsu Province Patentee after: Jiangsu CRRC Huateng Environmental Protection Technology Co.,Ltd. Address before: 250101 No. 3666 Century Avenue, Jinan High-tech Zone, Shandong Province Patentee before: SHANDONG CRRC HUATENG ENVIRONMENT Co.,Ltd. |