CN110793597A - Method and equipment for detecting liquid level of sealed fuel tank - Google Patents
Method and equipment for detecting liquid level of sealed fuel tank Download PDFInfo
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- CN110793597A CN110793597A CN201911124527.4A CN201911124527A CN110793597A CN 110793597 A CN110793597 A CN 110793597A CN 201911124527 A CN201911124527 A CN 201911124527A CN 110793597 A CN110793597 A CN 110793597A
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- liquid level
- level sensor
- ultrasonic liquid
- fuel tank
- ultrasonic
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- 239000007788 liquid Substances 0.000 title claims abstract description 95
- 239000002828 fuel tank Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 231100001261 hazardous Toxicity 0.000 abstract description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Images
Classifications
-
- 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
- G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
- G01F23/2961—Acoustic waves for discrete levels
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a method and equipment for detecting the liquid level of a sealed fuel tank, wherein an ultrasonic liquid level sensor is arranged on the outer side wall of the fuel tank, the ultrasonic liquid level sensor detects the liquid level in the fuel tank in real time, and the ultrasonic liquid level sensor respectively sends out different signals according to the fact that the detected liquid level is positioned above or below the ultrasonic liquid level sensor; transmitting a signal sent by the ultrasonic liquid level sensor to a cloud server; and the fuel cell remote data monitoring system reads the data on the cloud server. The invention does not need to change the original system and destroy the test equipment, ensures the integrity and safety of the original system, does not bring any pollution and leakage, and is particularly suitable for the liquid level detection of hazardous liquid.
Description
Technical Field
The invention relates to the technical field of new energy monitoring, in particular to a method and equipment for detecting the liquid level of a sealed fuel barrel.
Background
In the field of new energy fuel cells, methanol is used as a fuel source of new energy and is also a consumable, and in practical application, the residual amount of methanol needs to be known so as to remind a user to add or replace the methanol in time. This approach requires a software formula to be preset, which results in data not being available once there is no open source data.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
In view of the above technical problems in the related art, the present invention provides a method and an apparatus for detecting a liquid level of a sealed fuel tank, which can solve the above problems.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
a method of detecting a level of a sealed fuel tank, comprising the steps of:
s100, arranging an ultrasonic liquid level sensor on the outer side wall of a fuel tank, detecting the liquid level in the fuel tank in real time by the ultrasonic liquid level sensor, and respectively sending different signals by the ultrasonic liquid level sensor according to the detected liquid level, wherein the detected liquid level is positioned above or below the ultrasonic liquid level sensor;
s200, transmitting a signal sent by the ultrasonic liquid level sensor to a cloud server;
and S300, reading data on the cloud server by the fuel cell remote data monitoring system.
Further, in step S100, the sending of different signals by the ultrasonic liquid level sensor respectively according to whether the detected liquid level is located above or below the ultrasonic liquid level sensor specifically includes: when the liquid level is higher than the position of the ultrasonic liquid level sensor, the ultrasonic liquid level sensor sends a high level signal, and when the liquid level is lower than the position of the ultrasonic liquid level sensor, the ultrasonic liquid level sensor sends a low level signal.
Further, in step S200, the ultrasonic liquid level sensor sends a signal to the cloud server through the GPRS device.
Furthermore, the ultrasonic liquid level sensor is connected with the GPRS device through a serial port gateway.
Further, the ultrasonic liquid level sensor is attached to the outer side wall of the fuel tank and is away from the tank bottom 1/5.
The utility model provides a detect equipment of liquid level of sealed fuel barrel, includes the fuel barrel, be provided with ultrasonic wave level sensor on the fuel barrel, ultrasonic wave level sensor is connected with serial ports gateway, and serial ports gateway is connected with GPRS equipment, GPRS equipment is connected with cloud ware.
Further, the ultrasonic liquid level sensor is arranged at 1/5 barrel height of the outer side wall of the fuel barrel.
Furthermore, a DO output interface is arranged on the ultrasonic liquid level sensor.
The invention has the beneficial effects that:
(1) the invention has low requirement on the precision of the sensor and low requirement on the type of the test medium.
(2) The invention does not need to change the original system and destroy the test equipment, ensures the integrity and safety of the original system, does not bring any pollution and leakage, and is particularly suitable for the liquid level detection of hazardous liquid.
(3) No matter where the fuel cell remote data monitoring system is arranged, the low-limit alarm information of the fuel can be acquired through the cloud server.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of an apparatus for detecting a liquid level of a sealed fuel tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1, a method for detecting a liquid level of a sealed fuel tank according to an embodiment of the present invention includes:
s100, arranging an ultrasonic liquid level sensor on the outer side wall of a fuel tank, detecting the liquid level in the fuel tank in real time by the ultrasonic liquid level sensor, and respectively sending different signals by the ultrasonic liquid level sensor according to the detected liquid level, wherein the detected liquid level is positioned above or below the ultrasonic liquid level sensor;
s200, transmitting a signal sent by the ultrasonic liquid level sensor to a cloud server;
and S300, reading data on the cloud server by the fuel cell remote data monitoring system.
In an embodiment of the present invention, the step S100 of sending different signals by the ultrasonic liquid level sensor according to whether the detected liquid level is located above or below the ultrasonic liquid level sensor specifically includes:
when the liquid level is higher than the position of the ultrasonic liquid level sensor, the ultrasonic liquid level sensor sends a high level signal, and when the liquid level is lower than the position of the ultrasonic liquid level sensor, the ultrasonic liquid level sensor sends a low level signal.
In a specific embodiment of the present invention, in step S200, the ultrasonic liquid level sensor sends a signal to the cloud server through the GPRS device.
In a specific embodiment of the present invention, the ultrasonic liquid level sensor is connected to a GPRS device through a serial gateway.
In one embodiment of the present invention, the ultrasonic level sensor is attached to the outside wall of the fuel tank at a distance from the tank bottom 1/5.
The utility model provides a detect equipment of liquid level of sealed fuel barrel, includes the fuel barrel, be provided with ultrasonic wave level sensor on the fuel barrel, ultrasonic wave level sensor is connected with serial ports gateway, and serial ports gateway is connected with GPRS equipment, GPRS equipment is connected with cloud ware.
In one embodiment of the invention, the ultrasonic liquid level sensor is arranged at 1/5 barrel height of the outer side wall of the fuel barrel.
In a specific embodiment of the present invention, a DO output interface is disposed on the ultrasonic liquid level sensor.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
When the method is used specifically, the ultrasonic liquid level sensor is attached to the position, away from the barrel bottom 1/5, of the outer side wall of the fuel barrel, automatically sends switching value information, and signals returned when liquid exists are different from those returned when no liquid exists, so that whether the liquid level is below a preset low liquid level alarm line or not is judged.
The spontaneous digital quantity signal of ultrasonic sensor uploads to the cloud server via the serial ports gateway, and when the fuel liquid level in the fuel barrel drops to below 1/5, because the fuel barrel does not have liquid, the ultrasonic sensor can take place level switching, and fuel cell remote data monitoring system can trigger the warning after monitoring the conversion, tells the user that the liquid level has dropped below 1/5, needs to change fuel, reaches the purpose of early warning in advance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A method of detecting a level of a sealed fuel tank, comprising the steps of:
s100, arranging an ultrasonic liquid level sensor on the outer side wall of a fuel tank, detecting the liquid level in the fuel tank in real time by the ultrasonic liquid level sensor, and respectively sending different signals by the ultrasonic liquid level sensor according to the detected liquid level, wherein the detected liquid level is positioned above or below the ultrasonic liquid level sensor;
s200, transmitting a signal sent by the ultrasonic liquid level sensor to a cloud server;
and S300, reading data on the cloud server by the fuel cell remote data monitoring system.
2. The method of detecting a level of a sealed fuel tank of claim 1, wherein: in step S100, the step of respectively sending different signals by the ultrasonic liquid level sensor according to whether the detected liquid level is located above or below the ultrasonic liquid level sensor specifically includes:
when the liquid level is higher than the position of the ultrasonic liquid level sensor, the ultrasonic liquid level sensor sends a high level signal, and when the liquid level is lower than the position of the ultrasonic liquid level sensor, the ultrasonic liquid level sensor sends a low level signal.
3. The method of detecting a level of a sealed fuel tank of claim 1, wherein: in the step S200, the ultrasonic liquid level sensor sends a signal to the cloud server through the GPRS device.
4. A method of detecting a level of a sealed fuel tank as claimed in claim 3, wherein: the ultrasonic liquid level sensor is connected with GPRS equipment through a serial port gateway.
5. The method of detecting a level of a sealed fuel tank of claim 1, wherein: the ultrasonic liquid level sensor is attached to the position, away from the barrel bottom 1/5, of the outer side wall of the fuel barrel.
6. An apparatus for detecting a level of a sealed fuel tank, comprising a fuel tank, characterized in that: the fuel tank is provided with an ultrasonic liquid level sensor, the ultrasonic liquid level sensor is connected with a serial port gateway, the serial port gateway is connected with GPRS equipment, and the GPRS equipment is connected with a cloud server.
7. The apparatus for detecting a level of a sealed fuel tank as claimed in claim 6, wherein: the ultrasonic liquid level sensor is arranged at 1/5 barrel height of the outer side wall of the fuel barrel.
8. The apparatus for detecting a level of a sealed fuel tank as claimed in claim 6, wherein: and a DO output interface is arranged on the ultrasonic liquid level sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911124527.4A CN110793597A (en) | 2019-11-18 | 2019-11-18 | Method and equipment for detecting liquid level of sealed fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911124527.4A CN110793597A (en) | 2019-11-18 | 2019-11-18 | Method and equipment for detecting liquid level of sealed fuel tank |
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| Publication Number | Publication Date |
|---|---|
| CN110793597A true CN110793597A (en) | 2020-02-14 |
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| CN201911124527.4A Pending CN110793597A (en) | 2019-11-18 | 2019-11-18 | Method and equipment for detecting liquid level of sealed fuel tank |
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Citations (7)
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|---|---|---|---|---|
| JP2002340654A (en) * | 2001-05-18 | 2002-11-27 | Hitachi Ltd | Method and device for detecting liquid level by sound |
| JP2008070387A (en) * | 2007-12-03 | 2008-03-27 | Hitachi Ltd | Liquid level detection method by means of sound and its device |
| CN104457912A (en) * | 2014-12-04 | 2015-03-25 | 林聪� | GPS ultrasonic fuel quantity detector for vehicle and data processing method of detector |
| CN106932055A (en) * | 2017-04-24 | 2017-07-07 | 深圳市电应普科技有限公司 | A kind of High Precision Automatic sampling calibration ultrasonic solution level monitoring system |
| CN107167219A (en) * | 2017-07-24 | 2017-09-15 | 江苏迅创科技有限公司 | A kind of self-alignment outer patch ultrasonic liquid level switch measuring system and its measuring method |
| CN107576370A (en) * | 2017-09-04 | 2018-01-12 | 重庆耐德自动化技术有限公司 | A kind of external labeling type liquid level checking method of redundancy |
| CN211904319U (en) * | 2019-11-18 | 2020-11-10 | 北京光华世通科技有限公司 | Equipment for detecting liquid level of sealed fuel barrel |
-
2019
- 2019-11-18 CN CN201911124527.4A patent/CN110793597A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002340654A (en) * | 2001-05-18 | 2002-11-27 | Hitachi Ltd | Method and device for detecting liquid level by sound |
| JP2008070387A (en) * | 2007-12-03 | 2008-03-27 | Hitachi Ltd | Liquid level detection method by means of sound and its device |
| CN104457912A (en) * | 2014-12-04 | 2015-03-25 | 林聪� | GPS ultrasonic fuel quantity detector for vehicle and data processing method of detector |
| CN106932055A (en) * | 2017-04-24 | 2017-07-07 | 深圳市电应普科技有限公司 | A kind of High Precision Automatic sampling calibration ultrasonic solution level monitoring system |
| CN107167219A (en) * | 2017-07-24 | 2017-09-15 | 江苏迅创科技有限公司 | A kind of self-alignment outer patch ultrasonic liquid level switch measuring system and its measuring method |
| CN107576370A (en) * | 2017-09-04 | 2018-01-12 | 重庆耐德自动化技术有限公司 | A kind of external labeling type liquid level checking method of redundancy |
| CN211904319U (en) * | 2019-11-18 | 2020-11-10 | 北京光华世通科技有限公司 | Equipment for detecting liquid level of sealed fuel barrel |
Non-Patent Citations (1)
| Title |
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| 康磊等: "基于超声波技术的非接触液位开关", 《仪表技术与传感器》, no. 4, 31 December 2016 (2016-12-31), pages 36 - 38 * |
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