CN220340708U

CN220340708U - Intelligent networking wireless water meter

Info

Publication number: CN220340708U
Application number: CN202321626806.2U
Authority: CN
Inventors: 唐光晨; 梁忠城; 杨冠宁
Original assignee: Guangzhou Huixin Microelectronics Technology Co ltd
Current assignee: Guangzhou Huixin Microelectronics Technology Co ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2024-01-12
Anticipated expiration: 2033-06-25

Abstract

The utility model discloses an intelligent networking wireless water meter which comprises an MCU chip integrating a BLE module, a Hall sensor, a motor driving module, an RTC module, an NFC module, a Flash module, an LTE Cat.1 module and a display screen, wherein the MCU chip is respectively connected with the Hall sensor, the motor driving module, the RTC module, the NFC module, the Flash module, the LTE Cat.1 module and the display screen, and the intelligent networking wireless water meter is connected and communicated with a mobile phone through the BLE module and is connected and communicated with a server through the LTE Cat.1 module. The intelligent network system adopts an intelligent networking scheme, so that the labor cost is greatly reduced, the efficiency is improved, the user is ensured to be always online in the whole water use process, and the situation that the user needs to be reconnected due to poor network is also reduced.

Description

Intelligent networking wireless water meter

Technical Field

The utility model relates to the technical field of intelligent water meters, in particular to an intelligent networking wireless water meter.

Background

In daily life, two charging and payment modes of domestic water of people mainly exist, one is a traditional pay-before-use mode, namely a common water fee payment mode per month in general family life, and the method is widely adopted by a tap water provider at present, and the charging and fee collection are carried out according to the current water fee price by regularly arranging staff to go to the gate to copy the use information. The method has the advantages of high labor cost, large workload, data can be observed only by naked eyes, and the data can be easily seen by mistake, so that the data still need to be checked after manual transcription is finished, the water consumption condition is not easy to master, and the water cost price is inconvenient to regulate and control. The other is an IC card fee deduction method used in large-scale collective places such as schools and factories, wherein fees are prestored in an IC card, and fee deduction is performed according to the use condition. However, after the pre-stored expense is charged, the water supply is stopped immediately, the user needs to make budget, the IC card is held to a designated place in advance (the general recharging point is not 24H on duty and is set to be less) for recharging, and if the primary card of the school is encrypted, the primary card is not compatible, and the user can only carry two or more IC cards; most of the IC cards have no data service center, no consumption record, lost cards cannot be complemented, and the balance inquiry is inconvenient.

Most of the existing intelligent water meter devices use a GPRS networking scheme, a user controls the water meter by operating a mobile terminal and performs corresponding water consumption and charging operation, so that the problems that the traditional meter reading needs manual transcription and NFC IC cards on the market have no data service center, no consumption record exists, balance inquiry is inconvenient and the like are solved. However, in practical application, because the water meter may be in an environment with weaker network signal coverage (base station coverage is different in each place of mobile, communication and telecommunication, and one of the base stations is used in GPRS, the condition of network signal difference is easy to occur), in the peak period of the network, the situation of connection failure (the general water consumption time is the condition that most people go to schools or factories to work, and the situation of confliction of network resources is easy to occur in dormitory) or the condition of manual misoperation occurs, and the like, the communication connection between the water meter and the base station is easy to be interrupted, and the water supply stopping condition occurs. If the user needs to continue using water, the user needs to reconnect the water. Therefore, the current intelligent water meter device is imperfect in function, and brings a plurality of inconveniences for users.

Disclosure of Invention

The utility model provides an intelligent networking wireless water meter, which aims to solve the problem that the water consumption of a user is poor due to network signal difference in the intelligent water meter device in the prior art.

The technical scheme of the utility model is as follows:

the utility model provides an intelligent networking wireless water gauge, includes MCU chip, hall sensor, motor drive module, RTC module, NFC module, flash module, LTE Cat.1 module and the display screen of integrated BLE module, the MCU chip respectively with hall sensor motor drive module the RTC module NFC module the Flash module LTE Cat.1 module and the display screen is connected, intelligent networking wireless water gauge passes through BLE module and cell-phone connection communication, through LTE Cat.1 module and server connection communication.

According to the intelligent networking wireless water meter of the scheme, the intelligent networking wireless water meter further comprises a temperature sensor, and the MCU chip is connected with the temperature sensor.

According to the intelligent networking wireless water meter of the scheme, the intelligent networking wireless water meter further comprises a touch key, and the MCU chip is connected with the touch key.

According to the intelligent networking wireless water meter of the scheme, the intelligent networking wireless water meter further comprises a prompt module, and the MCU chip is connected with the prompt module.

Further, the prompting module is a buzzer.

According to the intelligent networking wireless water meter of the scheme, the motor driving module is an H-bridge motor driving circuit.

According to the intelligent networking wireless water meter of the scheme, the display screen is a TFT display screen.

According to the intelligent networking wireless water meter of the scheme, the intelligent networking wireless water meter further comprises a power adapter, and the MCU chip is connected with the power adapter.

Further, the intelligent power supply comprises a DCDC BUCK circuit and an LDO circuit, wherein the input of the DCDC BUCK circuit is connected with the power supply adapter, the output end of the DCDC BUCK circuit is respectively connected with the input end of the LDO circuit and the motor driving module, and the output end of the LDO circuit is connected with the MCU chip.

According to the intelligent networking wireless water meter of the scheme, the model of the MCU chip is FR8008A.

Compared with the prior art, the utility model has the beneficial effects that:

1. by adopting an intelligent networking scheme, water flow pulses are recorded in real time through a Hall sensor to carry out water charge statistics, and the MCU chip automatically uploads water consumption records to a server after each time of water use, so that the labor cost is greatly reduced, the efficiency is improved, the problem that the manual meter reading mode is easy to see mistakes by naked eyes, and the problems of high workload and high labor cost are solved;

2. the mainstream LTE Cat.1 module 10 is adopted, so that the advantages of better network coverage (supporting a 4G network), faster data transmission, lower power consumption and the like are achieved compared with GPRS;

3. compared with the traditional double-chip scheme, the single MCU chip 1 integrated with the BLE module is adopted, so that the cost is reduced, the volume is greatly reduced, the integration level is higher, and the stability and the reliability are stronger;

4. the system has the networking function, can know the water consumption information of the user on line in real time, records the consumption record and other information of the NFC IC of the user, and can transfer the corresponding balance in the past when the user carelessly loses the IC card and applies for a new IC card, thereby recovering unnecessary loss of the user;

5. the whole in-process of using water of user cell-phone carries out bluetooth with intelligent networking wireless water gauge and connects, when network signal is bad leads to LTE Cat.1 to connect the server failure time for intelligent networking wireless water gauge also can use the network of cell-phone to upload data to the server through bluetooth, ensures that the in-process user is online always, also reduces the user and leads to the condition that needs reconnection because of the network is bad.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic block diagram of an intelligent networked wireless water meter of the present utility model;

fig. 2 is a diagram of a power supply framework of the intelligent networking wireless water meter of the utility model.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, it is stated that the embodiments described below are only for explaining the present utility model and are not intended to limit the present utility model. It should be noted that, the terms "connected" and the like should be understood in a broad sense, for example, the terms may be fixed connection, detachable connection, or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise.

Referring to fig. 1, the embodiment provides an intelligent networking wireless water meter, including integrated BLE module's MCU chip 1, temperature sensor 2, hall sensor 3, motor drive module 4, prompt module 5, touch button 6, RTC module 7, NFC module 8, flash module 9, LTE cat.1 module 10 and display screen 11, MCU chip 1 respectively with temperature sensor 2, hall sensor 3, motor drive module 4, touch button 6, prompt module 5, RTC module 7, NFC module 8, flash module 9, LTE cat.1 module 10 and display screen 11 are connected, intelligent networking wireless water meter is connected with the cell-phone through BLE module and communicates, is connected with the server through LTE cat.1 module 10 and communicates.

The MCU chip 1 has a Bluetooth function and is responsible for data analysis, data processing, control output, bluetooth communication and the like. In this embodiment, the model of the MCU chip 1 is FR8008A. Specifically, the MCU chip 1 is connected with the temperature sensor 2 through the ADC interface, the MCU chip 1 is connected with the Hall sensor 3 through the IO interface, the MCU chip 1 is connected with the motor driving module 4 through the PMW interface, the MCU chip 1 is connected with the prompt module 5 through the PMW interface, the MCU chip 1 is connected with the touch key 6 through the IO interface, the MCU chip 1 is connected with the RTC module 7 through the IIC interface, the MCU chip 1 is connected with the NFC module 8 through the SPI interface, the MCU chip 1 is connected with the Flash module 9 through the SPI interface, the MCU chip 1 is connected with the LTE Cat.1 module 10 through the UART interface, the MCU chip 1 is connected with the display screen 11 through the QSPI interface.

The temperature sensor 2 is used for detecting water temperature, and the MCU chip 1 uploads the detected water temperature data to the server and displays the data on the display screen 11 so as to inform the user of the current water temperature.

The Hall sensor 3 has two functions, one is used for counting pulses and counting the water consumption of a user, the other is anti-theft and anti-disassembly, and the phenomenon that lawless persons use strong magnetic interference water meters is avoided, so that the water meters cannot charge normally and are free of water.

The motor driving module 4 is an H-bridge motor driving circuit, and the H-bridge motor driving circuit can realize forward and reverse rotation, so as to control the opening and closing of the water meter half ball valve.

The touch key 6 is used for water meter control such as on, pause, off, etc.

The prompting module 5 is a buzzer and is used for prompting the operation of the water meter, such as opening the half ball valve, closing the half ball valve, insufficient balance, arrearage and the like.

The RTC module 7 is used for time counting and recording the user water use time.

The NFC module 8 is used to provide a consumption port of the IC card.

The Flash module 9 is used for recording consumption records, and particularly can be stored locally when the network is not good, and then uploaded and updated to the server after the network is normally connected.

The LTE cat.1 module 10 is used for connecting to the internet, so that the uploading and downloading functions are realized through the internet connection server.

The display screen 11 is a TFT display screen 11 and is used for displaying information such as water meter information, user balance, water flow and the like.

Referring to fig. 2, in this embodiment, the intelligent networking wireless water meter further includes a power adapter 12, a DCDC BUCK circuit 13 and an LDO circuit 14, the power adapter is used for connecting a power supply (mains supply), an input of the DCDC BUCK circuit 13 is connected with the power adapter 12, an output end of the DCDC BUCK circuit 13 is respectively connected with an input end of the LDO circuit 14 and the motor driving module 4, and an output end of the LDO circuit 14 is connected with the MCU chip 1. The intelligent networking wireless water meter uses the power adapter 12 to supply power, reduces the 220VAC of the commercial power to 12VDC, reduces the 12V to 5V through the DCDC BUCK circuit 13, is used for supplying power to the motor driving module 4 to drive the half ball valve of the water meter, and reduces the voltage to 3.3V through the LDO circuit 14 to supply power to other devices.

In summary, the intelligent networking wireless water meter provided by the scheme adopts an intelligent networking scheme, water flow pulses are recorded in real time through the Hall sensor 3 to carry out water charge statistics, and the MCU chip 1 automatically uploads water consumption records to the server after users use water each time; the method can be realized by the scheme no matter the method of post-pay for home use or the method of balance storage in factories and schools, thereby greatly reducing the labor cost and improving the efficiency and solving the problem caused by manual transcription required by the traditional meter reading;

the mainstream LTE Cat.1 module 10 is adopted, so that the advantages of better network coverage (supporting a 4G network), faster data transmission, lower power consumption and the like are achieved compared with GPRS;

compared with the traditional double-chip scheme (a main control chip and a Bluetooth chip of a Bluetooth module), the multi-chip interaction is easier to cause communication abnormality and the like, and the scheme adopts the single MCU chip 1 integrated with the BLE module, so that the volume is greatly reduced, the integration level is higher, and the stability and the reliability are stronger;

the system has the networking function, can know the water consumption information of the user on line in real time, records the consumption record and other information of the NFC IC of the user, and can transfer the corresponding balance in the past when the user carelessly loses the IC card and applies for a new IC card, thereby recovering unnecessary loss of the user;

the mobile phone and the intelligent networking wireless water meter are connected with each other through Bluetooth in the whole water using process of the user, when the LTE Cat.1 connection server fails due to poor network signals, the intelligent networking wireless water meter can upload data to the server through the network of the mobile phone through Bluetooth, the user is always online in the whole process, and the situation that the user needs to be reconnected due to poor network is also reduced; meanwhile, the user water consumption record stored in real time by combining with the Flash module 9 can also upload the data which cannot be uploaded by the previous user due to the abnormal problem to the server through the current user.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the implementation of the utility model is not limited by the above manner, and it is within the scope of the utility model to apply the inventive concept and technical solution to other situations as long as various improvements made by the inventive concept and technical solution are adopted, or without any improvement.

Claims

1. The utility model provides an intelligent networking wireless water gauge, its characterized in that, including MCU chip, hall sensor, motor drive module, RTC module, NFC module, flash module, LTE Cat.1 module and the display screen of integrated BLE module, the MCU chip respectively with hall sensor motor drive module the RTC module NFC module the Flash module LTE Cat.1 module and the display screen is connected, intelligent networking wireless water gauge passes through BLE module and cell-phone connection communication, through LTE Cat.1 module and server connection communication.

2. The intelligent networked wireless water meter of claim 1 further comprising a temperature sensor, wherein the MCU chip is connected to the temperature sensor.

3. The intelligent networked wireless meter of claim 1 further comprising a touch key, the MCU chip being connected to the touch key.

4. The intelligent networked wireless water meter of claim 1 further comprising a prompt module, wherein the MCU chip is connected to the prompt module.

5. The intelligent networked wireless water meter of claim 4 wherein the prompt module is a buzzer.

6. The intelligent networked wireless meter of claim 1 wherein the motor drive module is an H-bridge motor drive circuit.

7. The intelligent networked wireless meter of claim 1 wherein the display screen is a TFT display screen.

8. The intelligent networked wireless water meter of claim 1 further comprising a power adapter, wherein the MCU chip is connected to the power adapter.

9. The intelligent networking wireless water meter of claim 8, further comprising a DCDC BUCK circuit and an LDO circuit, wherein an input of the DCDC BUCK circuit is connected with the power adapter, an output of the DCDC BUCK circuit is connected with an input of the LDO circuit and the motor drive module, respectively, and an output of the LDO circuit is connected with the MCU chip.

10. The intelligent networked wireless water meter of claim 1 wherein the MCU chip is model FR8008A.