CN210108453U - Electronic counting type water meter - Google Patents
Electronic counting type water meter Download PDFInfo
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- CN210108453U CN210108453U CN201821375423.1U CN201821375423U CN210108453U CN 210108453 U CN210108453 U CN 210108453U CN 201821375423 U CN201821375423 U CN 201821375423U CN 210108453 U CN210108453 U CN 210108453U
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Abstract
The utility model relates to a water gauge field, concretely relates to electronic counting water gauge, including water gauge base table, power module, measurement sampling module, data processing module, magnetic attack detection module, liquid crystal display module and communication module; the water meter base meter comprises a base and an impeller; the power supply module supplies power to the data processing module; the metering sampling module comprises a magnetic sensor and an annular magnet, and the annular magnet is arranged at the top end of the rotating shaft of the impeller; the magnetic sensor is arranged on one surface of the base opposite to the annular magnet, is positioned right above the annular magnet and is used for converting a magnetic pole conversion signal of the annular magnet into an electric signal; the magnetic attack detection module includes the hall sensor one sensitive to magnetism N utmost point, the hall sensor two sensitive to magnetism S utmost point, and hall sensor one sets up outside the base with hall sensor two, the utility model provides a water gauge that has that measurement accuracy is high, water gauge long service life, reliability are high, measuring range is wide, the high and easy to maintain of thermal stability.
Description
Technical Field
The utility model relates to a water gauge field, concretely relates to electronic counting formula water gauge.
Background
The water meter is a meter for measuring water flow, mostly for measuring accumulated flow of water, and generally includes two types, a positive displacement water meter and a velocity water meter, and when the specification of the water meter is selected, the size and the flow range of the flow used in the normal condition should be estimated. Most of water meters used in life at present are still mechanical water meters, the mechanical water meters are inconvenient to use, and due to the adoption of a large number of transmission gears, under the condition of small water flow, the phenomenon of counting or inaccurate flow measurement can be caused due to the resistance of mechanical parts; and the long-term use can cause the abrasion of mechanical parts, so that the metering accuracy is further influenced; when the mechanical water meter breaks down, the mechanical water meter is not easy to find and is not beneficial to management and maintenance. Secondly, the intelligent water meter used at present is to add a sensing element on the original mechanical water meter, and the traditional mode of the original mechanical water meter is not separated, so that the problems are not fundamentally solved.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical defects of serious abrasion of mechanical parts, low metering precision and no flow rate in the prior art. The utility model provides a new electronic counting formula water gauge, this electronic counting formula water gauge have that measurement accuracy is high, water gauge long service life, reliability are high, measuring range is wide, the high and easy to maintain's of thermal stability performance.
The purpose of the utility model is realized through the following technical scheme:
in order to solve the technical defects, the utility model provides an electronic counting water meter, which comprises a water meter base meter, a power module, a metering and sampling module, a data processing module, a communication module and a liquid crystal display module; the water meter base meter comprises a base and an impeller; the power supply module supplies power to the data processing module; the metering sampling module comprises a magnetic sensor and an annular magnet, and the annular magnet is arranged at the top end of the rotating shaft of the impeller; the magnetic sensor is arranged on one surface of the base opposite to the annular magnet, is positioned right above the annular magnet and is used for converting magnetic pole conversion signals of the annular magnet into electric signals; the magnetic attack detection module comprises a first Hall sensor sensitive to magnetic N pole and a second Hall sensor sensitive to magnetic S pole, and the first Hall sensor and the second Hall sensor are arranged outside the base; the data processing device is connected with the liquid crystal display device and the communication device; the communication module transmits signals to the management center through one or more of Mbus communication, GPRS communication and NB-TOT communication, and the communication device is connected with the serial port of the data processing device.
As a further improvement, the axial center line of the base and the axial center line of the impeller transmission shaft are in the same straight line.
As a further improvement, the number of the magnetic sensors is more than or equal to 2.
As a further improvement, the magnetic sensor is a tunnel magnetic resistance sensor, and the non-contact tunnel magnetic resistance sensor detects the rotation of the impeller, so that the sensitivity of flow detection is greatly improved.
As a further improvement, the output ends of the magnetic sensors are connected with the input end of the data processing device, the output end of the magnetic attack detection module is connected with the input end of the data processing module, and the level state output by the magnetic sensors is converted into the corresponding number of turns of the impeller of the water meter, so that the corresponding flow of the water meter is calculated; the positive and negative rotation detection of the water flow is realized, and the problem of unstable metering precision caused by the rotation of the water flow is solved.
As a further improvement, the first hall sensor and the second hall sensor are bipolar latching magnetic switch sensors, the first hall sensor and the second hall sensor are used for detecting an external magnetic field, and when the external magnetic field strength is greater than a threshold value set by the hall sensors, the first hall sensor and the second hall sensor generate pulse level signals.
As a further improvement, the data processing device is a microprocessor.
As a further improvement, the ring magnet is a pair of ferrite magnets with opposite magnetic poles
Compared with the prior art, the beneficial effects of the utility model reside in that:
effect one, the utility model discloses a non-contact's magnetic field detection technique has avoided traditional machinery or reed switch life and the problem of shock collision, adopts ordinary dry-type water gauge base table part, has cancelled vulnerable part such as traditional count gear and reed switch, the utility model discloses a low, the range of initial motion flow is than wide, loss of pressure is little, overload flow is big, compares with current scheme, has to improve by a wide margin on reliability and stability
The utility model discloses effect two, the corotation of measurement rivers and the reversal water yield that the utility model discloses can be accurate, even under the case of the meter reversal dress, also can be accurate read user's water information, when the measuring result is continuous several days and all there is the change of magnetic sensor state every few minutes, then can judge that this user's water gauge has the trouble of leaking;
effect three, the utility model discloses a communication module can copy the abnormal information of reading water yield information and user's water in real time to the staff knows the water use condition of user in real time, and the administrative center knows the user's in service behavior according to the analysis to the water yield data simultaneously, judges whether to have the condition such as leaking, magnetic interference according to unusual information content, reduces the unnecessary loss, reaches the purpose of reasonable management and control;
the effect is four, the utility model adopts the non-contact tunnel magnetic resistance sensor to detect the rotation of the impeller, thereby greatly improving the sensitivity of flow detection; and the Hall sensor is used for detecting an external magnetic field, so that the water stealing condition is avoided.
Drawings
FIG. 1 is a flow chart of the operation of an electronic counting water meter;
fig. 2 is a schematic structural diagram of an electronic counting water meter;
FIG. 3 is a schematic diagram of output waveforms of two magnetic sensors when the impeller rotates forward;
FIG. 4 is a schematic diagram of output waveforms of two magnetic sensors when the impeller rotates reversely;
in the figure, 1-base, 2-Hall sensor I, 3-magnetic sensor, 4-annular magnet, 5-rotating shaft, 6-Hall sensor II, and 7-impeller.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Examples
In order to solve the technical defects, this embodiment provides an electronic counting type water meter, as shown in fig. 1, which is a work flow diagram of the electronic counting type water meter, and includes a water meter base meter, a power module, a metering and sampling module, a data processing module, a magnetic attack detection module, a liquid crystal display module, and a communication module. The water meter base meter is a basis for signal conversion and collection, the power supply module supplies power to the data processing module, the metering and sampling module collects water flow signals of the water meter base meter, the detection signals are transmitted to the data processing module, and the data processing module converts the data into water flow data and transmits the water flow data to the display module for display. The magnetic attack detection module converts external magnetic field interference attack into a pulse level signal, then transmits the signal to the data processing module, and the data processing module changes the signal into alarm information and transmits the information to the data center through the communication module. The management department can read the water quantity data through the communication module without reading the water meter at the place where the water meter is installed by a worker. The water meter base meter comprises a meter shell of a mechanical water meter and the lower half part of a movement of the mechanical water meter, wherein the lower half part comprises an annular magnet which is in transmission with the upper half part of the movement. The data processing unit comprises a microprocessor and only needs to adopt a common micro low-power consumption MCU on the market.
As shown in fig. 2, which is a schematic structural diagram of an electronic counting water meter, a metering sampling module comprises two magnetic sensors 3,
the water meter base meter comprises a base 1 and an impeller 7; the metering sampling module comprises a magnetic sensor 3 and an annular magnet 4; the annular magnet is arranged at the top end of the impeller rotating shaft 5; the two magnetic sensors are arranged on one surface of the base 1 opposite to the annular magnet 4, are positioned right above the annular magnet and are used for converting magnetic pole conversion signals of the annular magnet 4 into electric signals; the magnetic attack detection module comprises a first Hall sensor 2 sensitive to magnetic N pole and a second Hall sensor 6 sensitive to magnetic S pole, wherein the first Hall sensor 2 and the second Hall sensor 6 are arranged outside the base, the first Hall sensor 2 and the second Hall sensor 6 arranged right above the base 1 are not influenced by the annular magnet 4, the Hall sensors detect external magnetic fields in real time, and when the external magnetic fields are too strong, the normal work of the magnetic sensor 3 can be influenced, and the Hall sensors can generate pulse level signals. The annular magnet 4 adopts a multipolar magnetizing magnet with two pairs of magnetic poles, and is a magnet made of ferrite material; the two magnetic sensors adopt tunnel magnetic resistance sensors, and the two magnetic sensors have the best effect when the installation angle is 90 degrees or 270 degrees; the first Hall sensor 2 and the second Hall sensor 6 both adopt a 'bipolar latching type magnetic switch' sensor, the installation angle of the sensor is 180 degrees, and the sensor is prevented from being overlapped with the magnetic sensitive sensor in the vertical direction.
The specific operation process is as follows: the water flow drives an impeller 5 in the water meter base meter to rotate, and the impeller 5 drives a ring magnet 4 arranged on a transmission shaft of the impeller 5 to synchronously rotate to form a periodically-changing magnetic field; the changing magnetic field signal is converted into a corresponding electric signal by the magnetic sensor 3 arranged on the base 1 and transmitted to the data processing module, and because the rotating speed of the water flow is in direct proportion to the rotating speed of the impeller, the unit volume water flows through and the impeller rotates for a certain number of turns, the microprocessor in the data processing module processes the periodically changing data to obtain the number of turns of the rotation of the impeller, and then the metering result of the water meter is calculated. If the external part has strong magnetic interference attack, an output electric signal must be provided in the Hall sensor 2, and the data processing module generates alarm information after receiving the signal. The utility model discloses in can judge external magnetic field direction and intensity according to hall sensor' S output level, one of them is extremely sensitive to N of two hall sensors, and the other is extremely sensitive to S, no matter how external magnetic field direction, as long as intensity reaches a definite value, can produce alarm signal.
As shown in fig. 3 and 4, the output waveform schematic diagram of two magnetic sensors when impeller corotation and reversal, the utility model discloses can judge the direction of rotation of ring magnet in the water gauge base table according to two magnetic sensors's output level. When the N level of the annular magnet is close to the magnetic sensor, the magnetic sensor outputs a high level which is marked as 1; when the ring magnet S-level approaches the magnetic sensor, the magnetic sensor outputs a low level, which is noted as 0. Because the two magnetic sensors are different by a certain angle and the poles of the ring magnet N, S are quartered and alternate, the two magnetic sensors output 4 states in total when the double-pole ring magnet rotates for one circle. When the rotation direction of the impeller of the water meter is positive rotation, 4 state data, namely 00, 01, 11 and 10, can be obtained every time the impeller of the water meter rotates for one circle; when the rotation direction of the impeller of the water meter is reverse, every time the movement rotates for one circle, another group of 4 state data, namely 00, 10, 11 and 01, can be obtained; the data processing module respectively measures the water amount in forward rotation and reverse rotation; and finally, subtracting the reverse water consumption from the forward water consumption to obtain the actual water consumption. On the contrary, when the water meter is installed in the reverse direction, the water consumption in the reverse direction is subtracted from the water consumption in the forward direction to obtain the actual water consumption. Therefore, the forward and reverse judgment and the accurate measurement of the water quantity are realized. Meanwhile, the water quantity information is transmitted to the water tank.
Claims (8)
1. An electronic counting type water meter is characterized by comprising a water meter base meter, a data processing module, a communication module and a liquid crystal display module;
the water meter base meter comprises a base (1), an impeller (7), a metering sampling module and a magnetic attack detection module, wherein the impeller (7) is arranged on the base (1) through a rotating shaft; the metering sampling module comprises a magnetic sensor (3) and an annular magnet (4), and the annular magnet is arranged at the top end of an impeller rotating shaft (5); the magnetic sensor is arranged on one surface of the base (1) opposite to the annular magnet (4), is positioned right above the annular magnet and is used for converting a magnetic pole conversion signal of the annular magnet (4) into an electric signal; the magnetic attack detection module comprises a first Hall sensor (2) sensitive to magnetic N pole and a second Hall sensor (6) sensitive to magnetic S pole, and the first Hall sensor (2) and the second Hall sensor (6) are arranged outside the base;
the data processing module is connected with the liquid crystal display module and the communication module;
the communication module transmits signals to the management center through one or more of WIFI communication, 3G communication, 4G communication or Modbus communication, and the communication module is connected with the serial port of the data processing module.
2. An electronic counting water meter according to claim 1, wherein the axial centre line of said base (1) is collinear with the axial centre line of the drive shaft of said impeller (7).
3. An electronic counting water meter according to claim 1, wherein said magnetic sensors are greater than or equal to 2.
4. An electronic counting water meter according to claim 3, wherein said magneto-sensitive sensor is a tunnel magneto-resistive sensor.
5. An electronic counting water meter according to claim 4, wherein the outputs of said magnetic sensors are connected to the input of said data processing module, and the output of said magnetic attack detection module is connected to the input of said data processing module.
6. An electronic counting water meter according to claim 1, wherein said first hall sensor (2) and said second hall sensor (6) are bipolar latching magnetic switching sensors, said first hall sensor (2) and said second hall sensor (6) being adapted to sense an external magnetic field, said first hall sensor (2) and said second hall sensor (6) generating pulse level signals when the external magnetic field strength is greater than a predetermined threshold of said data processing means.
7. An electronic counting water meter according to claim 1, wherein said data processing module is a microprocessor.
8. An electronic counting water meter according to claim 1, wherein said ring magnet (4) is two pairs of oppositely poled multipole magnet magnets, said magnets being ferrite magnets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821375423.1U CN210108453U (en) | 2018-08-24 | 2018-08-24 | Electronic counting type water meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821375423.1U CN210108453U (en) | 2018-08-24 | 2018-08-24 | Electronic counting type water meter |
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| CN210108453U true CN210108453U (en) | 2020-02-21 |
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| CN201821375423.1U Active CN210108453U (en) | 2018-08-24 | 2018-08-24 | Electronic counting type water meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115293A (en) * | 2018-08-24 | 2019-01-01 | 浙江万胜智能科技股份有限公司 | A kind of electronic counting-type water meter |
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- 2018-08-24 CN CN201821375423.1U patent/CN210108453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115293A (en) * | 2018-08-24 | 2019-01-01 | 浙江万胜智能科技股份有限公司 | A kind of electronic counting-type water meter |
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