CN112604080A - Method for improving accuracy of infrared detection of water drops - Google Patents
Method for improving accuracy of infrared detection of water drops Download PDFInfo
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- CN112604080A CN112604080A CN202011593031.4A CN202011593031A CN112604080A CN 112604080 A CN112604080 A CN 112604080A CN 202011593031 A CN202011593031 A CN 202011593031A CN 112604080 A CN112604080 A CN 112604080A
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- water drops
- infrared
- receiving plate
- comparing
- characteristic value
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a method for improving the accuracy of infrared detection of water drops, which comprises the steps of firstly, controlling an infrared transmitting end switch by using a MCU timer through a program to enable an infrared receiving plate to form a uniformly fluctuating pulse surface according to the received infrared intensity; then, under various simulation environments, characteristic surface parameter data formed by dripping of water drops are obtained through experiments, common characteristic value ranges are extracted through comparing the data under various simulation environments, and templates for comparison are obtained through storage; and finally, comparing the real-time data acquired by the infrared receiving plate with the stored template characteristic value data, and detecting the water drops. The method can better detect the water drops, eliminate the interference of other factors and improve the accuracy of infrared detection of the water drops.
Description
Technical Field
The invention belongs to the field of infusion monitoring, and particularly relates to a method for improving accuracy of infrared detection of water drops.
Background
The existing infrared monitoring of water drops is mainly realized by an infrared tube pair method, and whether the water drops drop or not is known by judging the infrared intensity change received by an infrared receiving plate. However, in an actual use environment, you may be closed, such as infusion, or open, the open environment may be interfered by flying insects or other foreign objects, the closed environment may cause fogging of the tube wall due to temperature, or the tube wall may have water drops. These cause the infrared intensity received by the infrared receiving panel to vary.
The infrared detection device is composed of an infrared emission tube and an infrared receiving device, and the infrared detection water drops are judged by judging the infrared intensity received by the infrared receiving plate. The traditional method is that the infrared transmitting end is always opened, and the water drop is judged by judging the infrared intensity received by the current infrared receiving end. However, various use environments can be encountered in the actual use process, for example, the detection accuracy is affected by the condition that dew exists outside the infrared device, and the like, so that the erroneous judgment is caused. This patent provides a method to improve the detection accuracy by software.
The traditional method comprises the following steps: as shown in fig. 1, when a water droplet drips, the infrared intensity received by the infrared receiving panel changes, and the water droplet is identified by judging the change in the infrared intensity. The traditional method is easy to misjudge due to other foreign objects or interference.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method for improving the accuracy of infrared detection of water drops.
A method for improving accuracy of infrared detection of water drops comprises the following steps:
under the condition of no foreign object interference, an MCU timer is utilized to control an infrared transmitting end switch through a program, so that an infrared receiving plate forms a uniformly fluctuating pulse surface according to the received infrared intensity;
simulating according to actual use environments in various simulation environments, adding various possible interferences, acquiring characteristic surface parameter data formed by dripping of water drops through experiments, extracting a common characteristic value range by comparing data in various simulation environments, and storing to obtain a template for comparison;
and (3) comparing the real-time data acquired by the infrared receiving plate with the stored template characteristic value data, and detecting the water drops.
Furthermore, the simulated environment comprises a fully-open environment, the water drops are wrapped by transparent rubber, and the surface of the wrapping object is atomized with water vapor or has water drops on the surface.
The invention has the following beneficial effects:
according to the method, the emitting end of the infrared detection device is controlled, so that a pulse surface with uniform fluctuation can be formed on the infrared receiving plate, the infrared intensity characteristics received by the receiving plate are compared with characteristic surface parameter data of water drop dripping under different simulation environments, water drops can be better detected, interference of other factors is eliminated, and the accuracy of infrared detection of the water drops is improved.
Drawings
FIG. 1 is a schematic diagram of conventional detection;
FIG. 2 is a schematic diagram of the method of the present invention;
FIG. 3 is a schematic diagram of a normal pulse plane of the method of the present invention;
fig. 4 is a schematic diagram of a water droplet pulse surface according to the method of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
FIG. 1 is a schematic diagram of conventional detection; FIG. 2 is a schematic diagram of the method of the present invention;
a method for improving accuracy of infrared detection of water drops comprises the following steps:
under the condition of no foreign object interference, an MCU timer is utilized to control an infrared transmitting end switch through a program, so that an infrared receiving plate forms a uniformly fluctuating pulse surface as shown in figure 3 according to received infrared intensity;
step (2) under the conditions of a fully open environment, water drops wrapped by transparent rubber, water vapor atomization on the surface of a wrapping object or water drops on the surface of the wrapping object, characteristic surface parameter data formed by the dropping of the water drops are obtained through experiments, a common characteristic value range is extracted by comparing data in various simulation environments, and templates for comparison are obtained through storage;
and (3) comparing the real-time data acquired by the infrared receiving plate with the stored template characteristic value data, and detecting the water drops.
Fig. 4 shows a pulse surface generated when a water droplet is dropped.
Claims (2)
1. A method for improving accuracy of infrared detection of water drops is characterized by comprising the following steps:
under the condition of no foreign object interference, an MCU timer is utilized to control an infrared transmitting end switch through a program, so that an infrared receiving plate forms a uniformly fluctuating pulse surface according to the received infrared intensity;
simulating according to actual use environments in various simulation environments, adding various possible interferences, acquiring characteristic surface parameter data formed by dripping of water drops through experiments, extracting a common characteristic value range by comparing data in various simulation environments, and storing to obtain a template for comparison;
and (3) comparing the real-time data acquired by the infrared receiving plate with the stored template characteristic value data, and detecting the water drops.
2. The method of claim 1, wherein the simulated environment comprises a fully open environment, a water droplet covered with a transparent rubber, a moisture mist on the surface of the covering, or a water droplet on the surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202011593031.4A CN112604080A (en) | 2020-12-29 | 2020-12-29 | Method for improving accuracy of infrared detection of water drops |
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CN202011593031.4A CN112604080A (en) | 2020-12-29 | 2020-12-29 | Method for improving accuracy of infrared detection of water drops |
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CN202011593031.4A Withdrawn CN112604080A (en) | 2020-12-29 | 2020-12-29 | Method for improving accuracy of infrared detection of water drops |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101232329A (en) * | 2007-11-28 | 2008-07-30 | 华东理工大学 | Jam eliminating method of visible light communication system |
CN102716527A (en) * | 2012-06-28 | 2012-10-10 | 长沙健源医疗科技有限公司 | Detection method for liquid drops of transfusion pump |
CN103149469A (en) * | 2013-01-22 | 2013-06-12 | 中国电力科学研究院 | Climate correcting method of radio disturbance and audible noise of direct current transmission line |
CN103712759A (en) * | 2014-01-06 | 2014-04-09 | 北京卫星环境工程研究所 | Spacecraft whole-satellite micro-vibration mechanics environment ground test method |
CN106370779A (en) * | 2015-07-20 | 2017-02-01 | 张殿国 | Measurement deviation bridging method based on near disturbance source and environmental change |
CN109001997A (en) * | 2018-07-13 | 2018-12-14 | 安徽云图信息技术有限公司 | A kind of anti-tampering environment information acquisition system |
CN109270145A (en) * | 2018-11-20 | 2019-01-25 | 三诺生物传感股份有限公司 | A kind of test method of the electrochemical test strip of bipolar electrode |
-
2020
- 2020-12-29 CN CN202011593031.4A patent/CN112604080A/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101232329A (en) * | 2007-11-28 | 2008-07-30 | 华东理工大学 | Jam eliminating method of visible light communication system |
CN102716527A (en) * | 2012-06-28 | 2012-10-10 | 长沙健源医疗科技有限公司 | Detection method for liquid drops of transfusion pump |
CN103149469A (en) * | 2013-01-22 | 2013-06-12 | 中国电力科学研究院 | Climate correcting method of radio disturbance and audible noise of direct current transmission line |
CN103712759A (en) * | 2014-01-06 | 2014-04-09 | 北京卫星环境工程研究所 | Spacecraft whole-satellite micro-vibration mechanics environment ground test method |
CN106370779A (en) * | 2015-07-20 | 2017-02-01 | 张殿国 | Measurement deviation bridging method based on near disturbance source and environmental change |
CN109001997A (en) * | 2018-07-13 | 2018-12-14 | 安徽云图信息技术有限公司 | A kind of anti-tampering environment information acquisition system |
CN109270145A (en) * | 2018-11-20 | 2019-01-25 | 三诺生物传感股份有限公司 | A kind of test method of the electrochemical test strip of bipolar electrode |
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Application publication date: 20210406 |
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