CN111649793A - Water meter and detachable infrared reflection type metering sensing device thereof - Google Patents
Water meter and detachable infrared reflection type metering sensing device thereof Download PDFInfo
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- CN111649793A CN111649793A CN202010664746.8A CN202010664746A CN111649793A CN 111649793 A CN111649793 A CN 111649793A CN 202010664746 A CN202010664746 A CN 202010664746A CN 111649793 A CN111649793 A CN 111649793A
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- infrared
- water meter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/661—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters using light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/662—Constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
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- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a water meter and a detachable infrared reflection type metering sensing device thereof, wherein the detachable infrared reflection type metering sensing device comprises a reflection disc, a fixing mechanism and three infrared metering sensors; the reflecting disc is arranged in the water meter and is arranged below the dial plate of the water meter; the fixing mechanism is detachably arranged outside the water meter dial and is used for fixing the three infrared metering sensors; the three infrared metering sensors are fixedly arranged on the fixing mechanism, are positioned right above the circumference of the reflecting disc and are evenly distributed on the circumference of one half of the reflecting disc. The infrared metering sensor can be quickly detached from the base meter on the installation site of the water meter, and is convenient for the on-site maintenance of the water meter. After the infrared metering sensor is detached, the three infrared metering sensors all output high levels, so that whether the infrared metering sensor is detached maliciously or damaged can be detected.
Description
Technical Field
The invention relates to the technical field of water meter measurement, in particular to a water meter and a detachable infrared reflection type measurement sensing device thereof.
Background
The intelligent water and gas meter products are installed and used in a large number in water meter companies and gas meter companies and are used for metering domestic water and gas. At present, NB-IOT (Narrow Band Internet of Things) water-gas meter is most widely applied. The safety and failure rate of the metering sensor as a battery-powered NB-IOT water gas meter will be a crucial indicator. What current NB-IOT intelligence water gauge generally adopted is detachable no magnetism measurement sensor and non-detachable photoelectric sensor. The undetachable photoelectric sensor can not be dismantled, and the water meter can not be completely replaced after the photoelectric sensor fails in field maintenance, so that manpower and material resources are wasted and materials are wasted.
Disclosure of Invention
The invention aims to provide a water meter and a detachable infrared reflection type metering sensing device thereof, which can solve the problem of inconvenient maintenance caused by the fact that a photoelectric sensor in the prior art cannot be detached.
The purpose of the invention is realized by the following technical scheme:
in a first aspect, the invention provides a detachable infrared reflection type metering sensing device of a water meter, which comprises a reflection disc, a fixing mechanism and three infrared metering sensors; the reflecting disc is arranged in the water meter and is arranged below the dial plate of the water meter; the fixing mechanism is detachably arranged outside the water meter dial and is used for fixing the three infrared metering sensors; the three infrared metering sensors are fixedly arranged on the fixing mechanism and are positioned right above the circumference of the reflecting disc.
Furthermore, the three infrared metering sensors are evenly distributed on the circumference of one half of the reflecting disc.
Furthermore, the reflecting disc is a plastic disc.
Furthermore, the reflecting disc is divided into two parts, wherein the surface of one part is plated with nickel to form a reflecting surface; the other part of the surface is a pitted surface which is a light absorption surface.
Furthermore, the reflecting disc rotates forwards or backwards under the driving of water flow.
In a second aspect, the invention provides a water meter, which comprises a base meter and the detachable infrared reflection type metering and sensing device, wherein the detachable infrared reflection type metering and sensing device is detachably mounted with the base meter.
According to the detachable infrared reflection type metering sensing device, the infrared metering sensor can be rapidly detached from the base meter on the installation site of the water meter, and the site maintenance of the water meter is facilitated. After the infrared metering sensors arranged outside the water meter dial are detached, the three infrared metering sensors all output high levels, so that whether the infrared metering sensors are normally installed or not can be judged according to the output level signals, and whether the infrared metering sensors are maliciously detached or damaged or not can be detected.
Drawings
FIG. 1 is a schematic view of an infrared metrology sensor distribution of the present invention;
FIG. 2 is a schematic view of the surface structure of the reflective disk of the present invention;
figure 3 is a cross-sectional view of the water meter of the present invention;
figure 4 is a top schematic view of the water meter of the present invention.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The invention discloses a detachable infrared reflection type metering sensing device of a water meter, which comprises a reflection disc 1, a fixing mechanism 2 and three infrared metering sensors 3. The reflective disk is mounted inside the water meter and is positioned under the dial 4 of the water meter. The fixing mechanism is detachably arranged outside the water meter dial and used for fixing the infrared metering sensor. The three infrared metering sensors are fixedly arranged on the fixing mechanism and are positioned right above the circumference of the reflecting disc. The three infrared metering sensors are evenly distributed on the circumference of one half of the reflecting disc. As shown in fig. 1, a distribution diagram of three infrared metrology sensors is shown, wherein A, B, C is three infrared metrology sensors.
The reflecting disc is a plastic disc with the diameter of 10mm and is divided into two parts, wherein the surface of one part is electroplated with nickel to form a reflecting surface. The other part has a rough surface as a light absorbing surface, as shown in FIG. 2. The reflective disk rotates forward or backward with the flow of water. The diameter of the reflecting disc can be adjusted according to actual needs, and the change of the size should not be taken as a limitation to the protection scope of the invention.
The infrared metering sensor is an integrated infrared detection device which adopts SOC integration and has specific wavelength and is used for transmitting and receiving infrared light with specific wavelength. The infrared light with specific wavelength emitted by the emitter in the infrared metering sensor is reflected by the reflecting surface of the reflecting disc and then received by the receiver in the infrared metering sensor. The working principle of the infrared metering sensor does not belong to the protection scope of the invention, and the description is not carried out.
The water meter comprises a base meter and the detachable infrared reflection type metering sensing device.
The working principle of the invention is as follows:
the three infrared metering sensors are fixedly arranged on the fixing device and then form a whole with the fixing device. And then the fixing device is arranged outside the base meter dial of the water meter. The water flow drives the reflecting disc to rotate forwards or backwards in situ. The emitter of the infrared metering sensor emits infrared light, and the infrared light is reflected by the reflecting surface of the reflecting disc and then received by the receiver of the infrared metering sensor. When a receiver in the infrared metering sensor receives infrared light reflected by the reflective disk, the infrared metering sensor outputs a low level (0), otherwise, the infrared metering sensor outputs a high level (1). Since one infrared metering sensor can receive the reflected infrared light signal all the time when the reflecting disc rotates, A, B, C three infrared metering sensors all output high level 1 when the infrared metering sensor arranged outside the glass dial is removed. Therefore, the problem that the positions of the infrared metering sensor and the reflecting disc are changed due to the fact that the infrared metering sensor is maliciously disassembled or the structure is damaged can be detected.
A. B, C the three infrared measurement sensors output different measurement signals due to the positive and negative rotation of the reflection disc as follows:
1) forward rotation signal: output of the infrared metering sensor C is low level (0) → output of both the infrared metering sensors C and A are low level (00) → output of both the infrared metering sensors A and B are low level (0) → output of both the infrared metering sensors A and B are low level (00) → output of both the infrared metering sensor B and the infrared metering sensor BC are low level (0) → output of both the infrared metering sensor C and the low level (0)
2) Inverting signals: output of the infrared metering sensor C is low level (0) → output of both the infrared metering sensors C and B is low level (00) → output of both the infrared metering sensor B and A is low level (0) → output of both the infrared metering sensor A and C is low level (00) → output of both the infrared metering sensor C is low level (0)
3) Signal that the infrared metering sensor is detached: the infrared metering sensors A, B, C each output a high level 1.
4) Signal after infrared measurement sensor is installed: the infrared metrology sensor A, B, C outputs a low level of 0 for one or more of the three infrared metrology sensors.
Because the reflecting disc can rotate forward and backward, the water meter can carry out forward and backward rotation measurement of the whole direction, and the electromechanical asynchronism caused by the reverse rotation caused by the pressure change on the water meter installation site is prevented.
In addition, because the infrared metering sensor integrating emission and reception is adopted, the electromechanical asynchrony of the water meter caused by the interference of the magnet on the water meter metering sensor can be prevented, and the electromechanical asynchrony of the water meter caused by the interference of external strong light on the infrared metering sensor can also be prevented.
In the description of the present invention, it is to be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (6)
1. The detachable infrared reflection type metering sensing device of the water meter is characterized by comprising a reflection disc, a fixing mechanism and three infrared metering sensors; the reflecting disc is arranged in the water meter and is arranged below the dial plate of the water meter; the fixing mechanism is detachably arranged outside the water meter dial; the three infrared metering sensors are fixedly arranged on the fixing mechanism and are positioned right above the circumference of the reflecting disc.
2. A removable infrared reflective metering sensor assembly of a water meter as set forth in claim 1, wherein said three infrared metering sensors are evenly spaced about one-half of the circumference of the reflector dish.
3. A removable infrared reflective metering sensor assembly of a water meter as set forth in claim 1 wherein said reflective disk is a plastic disk.
4. A removable infrared reflective metering sensor assembly at a water meter as set forth in claim 3 wherein said reflective disk is divided into two portions, one portion having a surface plated with nickel to form a reflective surface; the other part of the surface is a pitted surface which is a light absorption surface.
5. A removable infrared reflective metering sensor assembly of a water meter as set forth in claim 1 wherein said reflective disk is adapted to rotate in either a forward or reverse direction by the flow of water.
6. A water meter comprising a base meter and, further, a detachable infrared reflective metering sensor assembly as claimed in any one of claims 1 to 5, said detachable infrared reflective metering sensor assembly being detachably mounted to the base meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010664746.8A CN111649793A (en) | 2020-07-10 | 2020-07-10 | Water meter and detachable infrared reflection type metering sensing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010664746.8A CN111649793A (en) | 2020-07-10 | 2020-07-10 | Water meter and detachable infrared reflection type metering sensing device thereof |
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|---|---|
| CN111649793A true CN111649793A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010664746.8A Pending CN111649793A (en) | 2020-07-10 | 2020-07-10 | Water meter and detachable infrared reflection type metering sensing device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532571A (en) * | 2021-07-21 | 2021-10-22 | 山东潍微科技股份有限公司 | Ultrasonic counting device for water meter |
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| US20050000302A1 (en) * | 2003-06-13 | 2005-01-06 | Dan Winter | Meter register having an encoder for measuring material flow and an algorithm to selectively block signal transmission |
| CN2769855Y (en) * | 2005-01-18 | 2006-04-05 | 深圳市华旭科技开发有限公司 | Intelligent watermeter with photoelectric detection sampling circuit |
| CN202221326U (en) * | 2011-09-08 | 2012-05-16 | 无锡水表有限责任公司 | Water meter |
| CN103063265A (en) * | 2012-12-25 | 2013-04-24 | 上海桑锐电子科技有限公司 | Device for utilizing magnetic sensitive devices to measure positive and negative rotation of water meter |
| CN210036854U (en) * | 2019-12-07 | 2020-02-07 | 山东潍微科技股份有限公司 | Intelligent water meter counting device based on light and shadow sensing |
| CN110849426A (en) * | 2019-11-27 | 2020-02-28 | 江苏金钰铭电子有限公司 | High-precision flow and metering conversion device |
-
2020
- 2020-07-10 CN CN202010664746.8A patent/CN111649793A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050000302A1 (en) * | 2003-06-13 | 2005-01-06 | Dan Winter | Meter register having an encoder for measuring material flow and an algorithm to selectively block signal transmission |
| CN2769855Y (en) * | 2005-01-18 | 2006-04-05 | 深圳市华旭科技开发有限公司 | Intelligent watermeter with photoelectric detection sampling circuit |
| CN202221326U (en) * | 2011-09-08 | 2012-05-16 | 无锡水表有限责任公司 | Water meter |
| CN103063265A (en) * | 2012-12-25 | 2013-04-24 | 上海桑锐电子科技有限公司 | Device for utilizing magnetic sensitive devices to measure positive and negative rotation of water meter |
| CN110849426A (en) * | 2019-11-27 | 2020-02-28 | 江苏金钰铭电子有限公司 | High-precision flow and metering conversion device |
| CN210036854U (en) * | 2019-12-07 | 2020-02-07 | 山东潍微科技股份有限公司 | Intelligent water meter counting device based on light and shadow sensing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532571A (en) * | 2021-07-21 | 2021-10-22 | 山东潍微科技股份有限公司 | Ultrasonic counting device for water meter |
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Application publication date: 20200911 |