CN220039556U - Sampling circuit for non-magnetic water meter - Google Patents
Sampling circuit for non-magnetic water meter Download PDFInfo
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- CN220039556U CN220039556U CN202321580731.9U CN202321580731U CN220039556U CN 220039556 U CN220039556 U CN 220039556U CN 202321580731 U CN202321580731 U CN 202321580731U CN 220039556 U CN220039556 U CN 220039556U
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- water meter
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- metering
- pointer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000005070 sampling Methods 0.000 title claims abstract description 51
- 238000009434 installation Methods 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
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Abstract
The utility model discloses a sampling circuit for a nonmagnetic water meter, which comprises: the non-magnetic metering module is arranged above the mechanical pointer of the non-magnetic water meter and is used for acquiring the pointer reading of the non-magnetic water meter; the nonmagnetic metering module comprises: the pulse output circuit is arranged above the mechanical pointer of the non-magnetic water meter, and is used for sensing the number of turns of the mechanical pointer rotation and converting the number of turns into a pulse signal; the metering sampling circuit is connected to the pulse output circuit and is used for metering the number of pulse signals; the second MCU is connected with the metering sampling circuit and is used for converting the number of metering pulse signals into pointer readings of the nonmagnetic water meter; the first MCU is connected with the second MCU, the storage module and the communication module, the second MCU wakes up the first MCU, the pointer reading of the nonmagnetic water meter is forwarded to the first MCU, the first MCU stores the pointer reading of the nonmagnetic water meter to the storage module, and the pointer reading is periodically forwarded to the upper computer through the communication module. The integrated preparation is on same PCB board, avoids the influence that the circuit was affected with damp.
Description
Technical Field
The utility model relates to the technical field of sampling circuits, in particular to a sampling circuit for a nonmagnetic water meter.
Background
The mechanical intelligent remote water meter is characterized in that a sampling module and a control module are additionally arranged on a counter of the water meter to realize data electronization, data are transmitted to a software platform through a communication module, and an administrator acquires the data through the software platform to perform management and charging work. The number of measurement degrees of the mechanical intelligent remote water meter is generally that a character wheel group displays large numbers, a pointer group displays small numbers, and the character wheel group and the pointer group are decimal and are respectively arranged on a counter dial of the water meter. The sampling module is arranged on a certain pointer group or a character wheel group, and the movement of the pointer or the character wheel generates a certain electric signal to the sampling module. The sampling module converts the electric signals into electronic degrees through the control module and transmits the electronic degrees to the water meter management platform.
The existing water meter sampling circuit is usually formed by separating a sampling module from a control module, wherein the sampling module and the control module are not arranged on a PCB, and the sampling module and the control module are connected in a wired mode. However, since the water meter is usually placed in a dark and moist hidden environment, the sampling module and the control module are separately arranged, which easily causes the circuit connection to be affected by damp, affects the control and collection work, and even causes the circuit to be damaged and cannot work. Meanwhile, the existing water meter sampling circuit is usually only provided with a single control module, the control module needs to receive the water meter reading sampling data of the sampling module in real time and report the water meter reading data in real time through the communication module, and therefore a power supply module of the control module is frequently easy to lose electricity and needs to replace a power supply frequently.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a sampling circuit for a non-magnetic water meter, which can solve the technical problems.
The utility model provides a sampling circuit for a nonmagnetic water meter, which is arranged on the same PCB board and comprises: the system comprises a non-magnetic metering module, a first MCU, a storage module and a communication module;
the non-magnetic metering module is arranged above a mechanical pointer of the non-magnetic water meter and is used for acquiring the pointer reading of the non-magnetic water meter;
the non-magnetic metering module comprises: the pulse output circuit, the metering sampling circuit and the second MCU;
the pulse output circuit is arranged above the mechanical pointer of the non-magnetic water meter, and is used for sensing the number of turns of the mechanical pointer rotation and converting the number of turns into a pulse signal; the metering sampling circuit is connected to the pulse output circuit and is used for metering the number of pulse signals; the second MCU is connected with the metering sampling circuit and is used for converting the number of metering pulse signals into pointer readings of the nonmagnetic water meter;
the first MCU is connected with the second MCU, the storage module and the communication module, the second MCU wakes up the first MCU, the pointer reading of the nonmagnetic water meter is forwarded to the first MCU, the first MCU stores the pointer reading of the nonmagnetic water meter to the storage module, and the pointer reading is periodically forwarded to the upper computer through the communication module.
Further, the method comprises the steps of: a first power supply circuit; the first power supply circuit is connected to the first MCU and is used for supplying power to the first MCU.
Further, the nonmagnetic metering module comprises: a second power supply circuit; the second power supply circuit is connected to the second MCU for supplying power to the second MCU.
Further, the method comprises the steps of: an infrared control module;
the infrared control module is connected to the first MCU and used for receiving and transmitting external debugging infrared signals.
Further, the method comprises the steps of: a key module and a debugging interface;
the key module is connected to the first MCU and used for performing debugging and installation function selection;
the debugging interface is connected to the first MCU and used for debugging and updating the water meter during installation.
Further, the communication module is an NB-IOT communication module.
Further, the PCB size is 66.83mm 44.7mm.
The utility model has the following advantages:
firstly, carry out accurate sampling through pulse output circuit and measurement sampling circuit to the mechanical pointer of no magnetism water gauge, and then carry out specific pointer reading conversion through the second MCU of direct connection, realize real-time sampling conversion, prepare pulse output circuit, measurement sampling circuit, second MCU, second power supply circuit on same PCB board simultaneously, need not additional connecting wire, avoided the influence that the circuit was wetted.
Secondly, prepare whole no magnetism measurement module, first MCU, memory module, communication module etc. on same PCB board, need not external circuit connection between first MCU and the second MCU, realize whole sampling circuit's integration, realize whole sampling circuit integrated package inside no magnetism water gauge, avoided holistic influence of wetting.
The non-magnetic metering module is provided with an independent second MCU and an independent power supply, the independent second MCU and the independent power supply are used for converting the number of metering pulse signals into pointer readings of the non-magnetic water meter, the first MCU and the independent power supply are only used for storing and periodically uploading water meter data through communication, and the non-magnetic metering module is in a dormant state when the data are not required to be stored and reported, does not need to convert and upload the data in real time, further reduces the power consumption of an integral circuit, and achieves power saving.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a sampling circuit of the present utility model.
Fig. 2 is a schematic layout diagram of a PCB board according to the present utility model.
FIG. 3 is a schematic diagram of a nonmagnetic sampling module of the present utility model.
Fig. 4 is a circuit diagram of the pulse output of the present utility model.
Fig. 5 is a circuit diagram of a meter sampling circuit of the present utility model.
Fig. 6 is a circuit diagram of a second MCU of the present utility model.
Fig. 7 is a second power supply circuit diagram of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present utility model, but do not limit the scope of the present utility model. Likewise, the following examples are only some, but not all, of the examples of the present utility model, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present utility model.
As shown in fig. 1, the present solution provides a sampling circuit for a non-magnetic water meter, which is disposed on the same PCB board, as shown in fig. 2, wherein the size of the PCB board is 66.83mm by 44.7mm;
comprising the following steps: the system comprises a non-magnetic metering module, a first MCU, a storage module, a communication module, an infrared control module, a first power circuit, a key module and a debugging interface;
the non-magnetic metering module is arranged above a mechanical pointer of the non-magnetic water meter and is used for acquiring the pointer reading of the non-magnetic water meter;
as shown in fig. 3, the nonmagnetic metering module includes: the pulse output circuit, the metering sampling circuit, the second MCU and the second power supply circuit; the pulse output circuit is arranged above the mechanical pointer of the non-magnetic water meter, and is used for sensing the number of turns of the mechanical pointer rotation and converting the number of turns into a pulse signal; the metering sampling circuit is connected to the pulse output circuit and is used for metering the number of pulse signals; the second MCU is connected with the metering sampling circuit and is used for converting the number of metering pulse signals into pointer readings of the nonmagnetic water meter; the second power supply circuit is connected to the second MCU for supplying power to the second MCU.
In this embodiment, the non-magnetic metering module adopts a metal detection principle, a magnetic induction line is generated by etching a coil in a pulse output circuit (shown in fig. 4) on a PCB board to detect the rotation angle of a mechanical metal pointer below the non-magnetic metering module, the pulse output circuit rotates the mechanical metal pointer left for one circle, and the right is converted into pulse signals respectively by one circle, and as the magnetic induction line is cut in the rotation process of the mechanical metal pointer, the pulse number is calculated by a metering sampling circuit (shown in fig. 5), the pulse number is converted into a water meter ton number by a second MCU (shown in fig. 6), and then the pointer reading of the non-magnetic meter is realized, and the second MCU is independently powered by a second power supply circuit (shown in fig. 7). Meanwhile, the pulse output circuit, the metering sampling circuit, the second MCU and the second power supply circuit are manufactured on the same PCB, and no additional connecting circuit is needed, so that the influence of circuit wetting is avoided. The non-magnetic metering module is completely anti-magnetic, low in power consumption and high in anti-interference performance.
As shown in fig. 1, the first MCU is connected with the second MCU, a storage module and a communication module, the second MCU wakes up the first MCU, forwards the pointer reading of the nonmagnetic water meter to the first MCU2, the first MCU2 stores the pointer reading of the nonmagnetic water meter to the storage module, and periodically forwards the pointer reading to the upper computer through the communication module, the communication module is an NB-IOT communication module, and the first power circuit is connected to the first MCU2 and is used for supplying power to the first MCU 2.
In this embodiment, as shown in fig. 2, the whole non-magnetic metering module, the first MCU, the storage module, the communication module and the like are prepared on the same PCB board, no external circuit connection is needed between the first MCU and the second MCU, integration of the whole sampling circuit is realized, and the whole sampling circuit is integrated and packaged in the non-magnetic water meter, so that the whole influence of damp is avoided. Meanwhile, the first MCU is only awakened when receiving the water meter reading of the second MCU and is in a dormant state at ordinary times, and the first MCU is provided with a first power supply for independently supplying power, so that the power supply of the function in use is ensured.
The infrared control module is connected to the first MCU and used for receiving and transmitting external debugging infrared signals.
In this embodiment, when an operator debugs the circuit on site through the infrared device, the first MCU receives and transmits signals through the infrared control module.
The key module is connected to the first MCU and used for performing debugging and installation function selection;
in the embodiment, the circuit is further provided with a corresponding key module, so that the on-site operator can restart, start debugging, install and the like conveniently.
The debugging interface is connected to the first MCU and used for debugging and updating the water meter during installation.
In this embodiment, the circuit is further provided with a corresponding debug interface, so that the field operator can install and lift programs corresponding to the first MCU and the second MCU conveniently.
The foregoing description is only a partial embodiment of the present utility model, and is not intended to limit the scope of the present utility model, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.
Claims (7)
1. A sampling circuit for no magnetism water gauge, its characterized in that sets up on same PCB board, includes: the system comprises a non-magnetic metering module, a first MCU, a storage module and a communication module;
the non-magnetic metering module is arranged above a mechanical pointer of the non-magnetic water meter and is used for acquiring the pointer reading of the non-magnetic water meter;
the non-magnetic metering module comprises: the pulse output circuit, the metering sampling circuit and the second MCU;
the pulse output circuit is arranged above the mechanical pointer of the non-magnetic water meter, and is used for sensing the number of turns of the mechanical pointer rotation and converting the number of turns into a pulse signal; the metering sampling circuit is connected to the pulse output circuit and is used for metering the number of pulse signals; the second MCU is connected with the metering sampling circuit and is used for converting the number of metering pulse signals into pointer readings of the nonmagnetic water meter;
the first MCU is connected with the second MCU, the storage module and the communication module, the second MCU wakes up the first MCU, the pointer reading of the nonmagnetic water meter is forwarded to the first MCU, the first MCU stores the pointer reading of the nonmagnetic water meter to the storage module, and the pointer reading is periodically forwarded to the upper computer through the communication module.
2. The sampling circuit for a nonmagnetic water meter of claim 1, comprising: a first power supply circuit; the first power supply circuit is connected to the first MCU and is used for supplying power to the first MCU.
3. The sampling circuit for a nonmagnetic water meter of claim 1, wherein the nonmagnetic metering module comprises: a second power supply circuit; the second power supply circuit is connected to the second MCU for supplying power to the second MCU.
4. The sampling circuit for a nonmagnetic water meter of claim 1, comprising: an infrared control module;
the infrared control module is connected to the first MCU and used for receiving and transmitting external debugging infrared signals.
5. The sampling circuit for a nonmagnetic water meter of claim 1, comprising: a key module and a debugging interface;
the key module is connected to the first MCU and used for performing debugging and installation function selection;
the debugging interface is connected to the first MCU and used for debugging and updating the water meter during installation.
6. The sampling circuit for a nonmagnetic water meter of claim 1, wherein the communication module is an NB-IOT communication module.
7. The sampling circuit for a nonmagnetic water meter of claim 1, wherein the PCB is 66.83mm by 44.7mm in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321580731.9U CN220039556U (en) | 2023-06-20 | 2023-06-20 | Sampling circuit for non-magnetic water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321580731.9U CN220039556U (en) | 2023-06-20 | 2023-06-20 | Sampling circuit for non-magnetic water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220039556U true CN220039556U (en) | 2023-11-17 |
Family
ID=88734405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321580731.9U Active CN220039556U (en) | 2023-06-20 | 2023-06-20 | Sampling circuit for non-magnetic water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220039556U (en) |
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2023
- 2023-06-20 CN CN202321580731.9U patent/CN220039556U/en active Active
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