CN115497276A - Multi-user Internet of things water meter system - Google Patents
Multi-user Internet of things water meter system Download PDFInfo
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- CN115497276A CN115497276A CN202211144792.0A CN202211144792A CN115497276A CN 115497276 A CN115497276 A CN 115497276A CN 202211144792 A CN202211144792 A CN 202211144792A CN 115497276 A CN115497276 A CN 115497276A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/10—Arrangements in telecontrol or telemetry systems using a centralized architecture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
Abstract
The application discloses multi-user thing networking water gauge system, including N base table, concentrator and water utilities management platform, N base table and concentrator wireless connection, the data wireless transmission that N base table will gather is to the concentrator, and the concentrator then includes thing networking module, through thing networking module and water utilities management platform wireless network connection to upload data to water utilities management platform. The multi-user Internet of things water meter system provided by the embodiment of the application can realize short-distance low-cost communication, can utilize the Internet of things module more efficiently, reduces the material cost of a single water meter, and realizes quick data transmission, instant control and unified management based on wider coverage. Meanwhile, the system can be used for automatically acquiring and transmitting the measurement data of more water meters rapidly and accurately, so that manual errors are avoided, the overall working efficiency is improved, and the system has higher stability and practicability.
Description
Technical Field
The application relates to the technical field of metering, in particular to a multi-user Internet of things water meter system.
Background
A water meter is a kind of measuring device, which is used for measuring water flow.
Water meters are gradually evolving from mechanical water meters to mechanical water meters with electronic devices, and are now beginning to evolve towards electronic water meters. The electronic water meter is in a rapid development stage, and the electronic water meter comprises an ultrasonic water meter, an electromagnetic water meter and the like in classification. The electronic water meter can effectively improve the metering precision due to the correction function.
NB-IoTNB-IoT (Narrow Band Internet of Things) belongs to the IOT field of thing networking, supports the cellular data connection of low-power consumption equipment in the wide area network, and it combines thing networking cloud platform management system, has functions such as data acquisition, data communication, data storage, data processing, remote monitoring, supports mass connection, has the deep coverage ability. NB-IoT can support connections with long standby time, high demand devices for network connectivity.
However, electronic water meters are generally expensive. Among them, the high expenditure of NB-IOT and eSIM card internet of things modules also affects the cost budget. For example, a single water meter may be equipped with an NB-IOT module in a multi-user living area. However, since each water meter uploads data once a day, the NB-IOT module is idle, which results in waste of resources. Therefore, the price of the water meter is reduced, the stability of electronic devices of the electronic water meter is improved, and the popularization of the electronic water meter is required to be developed in the future.
Disclosure of Invention
The object of the present application is to solve at least to some extent one of the above mentioned technical problems.
Therefore, the first objective of the present invention is to provide a multi-user internet of things water meter system, which fully utilizes a wireless communication protocol and a network communication protocol, and based on the effective combination of the two protocols, realizes the high-efficiency operation of internet of things connection, and thus reduces the material cost of a single water meter, so as to establish a rapid, accurate, stable and high-efficiency automatic low-cost water meter measurement and data transmission system, and simultaneously reduce material waste, avoid manual errors, and improve the overall working efficiency.
In order to achieve the above object, an embodiment of a first aspect of the present application provides a multi-user internet of things water meter system, which is characterized by comprising N base meters, a concentrator and a water management platform,
the N base tables are wirelessly connected with the concentrator, and the N base tables wirelessly transmit the acquired data to the concentrator;
the concentrator includes thing networking module, and the concentrator passes through thing networking module and water utilities management platform wireless network connection, and the concentrator is uploaded data to water utilities management platform.
Optionally, the multi-user internet of things water meter system further comprises a repeater,
the repeater is respectively connected with the N base tables and the concentrator, receives the data collected by the N base tables and forwards the data to the concentrator.
Optionally, the internet of things module is an NB-IOT module or a CAT1 module.
Optionally, the concentrator further comprises an MCU, a bluetooth module, a wireless module, a key and a display module,
the MCU is connected with the keys through an IO interface;
the MCU is respectively connected with the Internet of things module, the Bluetooth module and the wireless module through serial ports;
the MCU is connected with the display module through a bus;
the key cooperates with MCU to control the concentrator to switch over the working mode;
the wireless module is used for wirelessly communicating with the base table or the repeater;
the display module is used for displaying time information or setting information.
Optionally, the base meter comprises a base meter MCU, a base meter key, a base meter display module, a metering module, a base meter wireless module and a valve control module,
the base meter MCU is respectively connected with the base meter keys and the valve control module through an IO interface;
the base meter MCU is connected with the base meter wireless module through a serial port;
the base meter MCU is connected with the base meter display module through a bus;
the base meter MCU is connected with the metering module through a serial peripheral interface, and the metering module receives a control instruction sent by the base meter MCU to execute corresponding operation;
the base meter wireless module is used for wirelessly communicating with the concentrator;
the base meter key and the base meter MCU are matched to control the base meter to switch the working mode;
the valve control module is used for controlling a motor in the base meter to drive the ball valve to act to block the water inlet so as to realize the turn-off of the base meter.
Optionally, the bluetooth module is wirelessly connected with an external mobile terminal, and the external mobile terminal acquires data collected by the base meter or sets parameters of the base meter through the bluetooth module.
Optionally, the metering module is connected with the transducer, the temperature sensor and the pressure sensor through external hardware,
the metering module is used for measuring the flight time of sound waves in water flow;
the transducer is used for converting the electric signal sent by the metering module into an ultrasonic signal, converting the received ultrasonic feedback signal into a feedback electric signal and sending the feedback electric signal to the metering module;
the temperature sensor is used for measuring the temperature of the water flow;
the pressure sensor is used for measuring the water flow pressure.
Optionally, the operating frequency bands of the base table wireless module of the base table and the wireless module of the concentrator are between 2.402GHz and 2.528 GHz.
Optionally, the operation modes of the base table and the concentrator include a frequency alignment mode,
after the base table and the concentrator enter a frequency alignment mode, the concentrator sets the working frequency of the base table in a wireless mode.
Optionally, this multi-user thing networking water gauge system includes:
when the time reaches the preset meter reading time, the base meter and the concentrator carry out time comparison operation;
after time setting is finished, the base meter receives a meter reading instruction of the concentrator and returns current data to the concentrator;
the concentrator receives the returned current data and returns a received instruction to the base table, and the meter reading is finished.
The multi-user thing networking water gauge system of embodiment of this application, including N base table, concentrator and water utilities management platform, N base table and concentrator wireless connection, N base table is with data wireless transmission to the concentrator that gathers, and the concentrator then includes thing networking module, through thing networking module and water utilities management platform wireless network connection to upload data to water utilities management platform. The system realizes the connection between the base meter and the concentrator through a wireless communication protocol, and realizes the connection between the concentrator and a water management platform through a network communication protocol, so that the short-distance low-cost communication can be realized, the Internet of things module can be more efficiently utilized, the material cost of a single water meter is reduced, and the rapid transmission, the instant control and the unified management of data are realized based on wider coverage. Meanwhile, the system realizes wireless connection of the multi-user water meters, and a single concentrator can be used for hanging the multi-user water meters, so that the metering data of more water meters can be automatically acquired and transmitted quickly and accurately, manual errors are avoided, and the overall working efficiency is improved. Moreover, the water meter battery in the system can be exchanged, and the power consumption of the module of the Internet of things is low, so that the overall stability and the practicability of the system are higher.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are included to illustrate an exemplary embodiment of the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of a multi-user internet of things water meter system according to an embodiment;
fig. 2 is a schematic structural diagram of a multi-user internet of things water meter system according to another embodiment;
fig. 3 shows a schematic structural diagram of a concentrator in a multi-user internet of things water meter system;
fig. 4 shows a schematic structural diagram of a base table in the multi-user internet of things water meter system;
FIG. 5 shows a truth control table for the valve control module in the base table;
FIG. 6 shows a schematic diagram of the connections of the metering modules in the concentrator;
fig. 7 shows a frequency band diagram of 2.402GHz to 2.528GHz that the base table and the concentrator can set.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention is described in further detail below with reference to specific examples, which are not to be construed as limiting the scope of the invention as claimed.
A multi-user internet of things water meter system according to an embodiment of the present application is described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a multi-user internet of things water meter system according to an embodiment of the present application.
As shown in fig. 1, the multi-user internet of things water meter system includes: n base tables 110, a concentrator 120, and a water management platform 130.
The N base tables 110 are wirelessly connected to the concentrator 120, and the N base tables 110 wirelessly transmit the acquired data to the concentrator 120; the concentrator includes an internet of things module 121, the concentrator 120 is connected with the water affair management platform 130 through the internet of things module 121 in a wireless network, and the concentrator 120 uploads data to the water affair management platform 130.
Therefore, after the base meter 110 measures the water flow, the communication with the concentrator 120 is established through the wireless communication protocol, and the measured data is uploaded to the concentrator 120 in a wireless mode, so that the wireless communication between the base meters 110 and the concentrator 120 is realized. In the present embodiment, the wireless communication protocol is 2.4Hz, which is improved according to CJ/T188 2014, for example only. Meanwhile, wireless communication can realize wireless connection between the plurality of base meters 110 and the concentrator 120 within a required distance at a low cost, so that data can be transmitted quickly, simply, conveniently and accurately, tedious and potential errors caused by manual statistics are avoided, and the overall working efficiency is improved.
Furthermore, the concentrator 120 is connected with the water management platform 130 through the internet of things module 121, and can realize long-distance data transmission based on stable strong connection and stable transmission with low power consumption, thereby saving energy cost, and gathering data to facilitate statistical analysis.
On the whole, in this embodiment, based on the internet of things module 121 in the concentrator 120, data is transmitted and managed in a unified manner, so that the idle problem and cost waste caused by the fact that the internet of things module 121 is arranged in each base table can be avoided, and the use cost is effectively reduced.
In one embodiment, the IOT module 121 is an NB-IOT module or a CAT1 module.
Specifically, the NB-IOT module or the CAT1 module establishes communication by adopting a network communication protocol. Furthermore, the CAT1 module supports transparent transmission, and the NB-IOT module can be directly connected with a cloud platform.
Here, cat.1 refers to UE-Category, UE is user equipment (user equipment), and Category means Category. The value cat.1 is used to measure the radio performance of the user terminal equipment, i.e. to divide the terminal rate (rank). According to the 3GPP Release definition, UE-Category is classified into 10 classes of 1-10, where Cat.1 is in the R8 group. Cat.1 has certain cost advantage, does not need to upgrade software and hardware aiming at a base station, has low network coverage cost, high integration level and simpler hardware architecture, has advantages in the aspects of speed, time delay and mobility, and can meet the requirements of medium-low speed service and mobility.
The NB-IOT is an important branch of the internet, is a low-power consumption wide area network technology, can meet the service requirements of higher performance and reliable habit, and is suitable for the service field with lower requirement on bandwidth. The NB-IOT is constructed in the cellular network, and the deployment can be realized only by consuming the bandwidth of about 180kHz, so that the deployment cost is reduced, and the smooth upgrade is realized.
Therefore, NB-IOT and Cat.1 can both meet the communication requirement between the concentrator 120 and the water management platform 130, and stable, low-power-consumption, long-distance and rapid data transmission is realized.
In another embodiment, as shown in fig. 2, the multi-user internet of things water meter system further includes a repeater 140, the repeater is connected to the N base meters 110 and the concentrator 120, respectively, and the repeater 140 receives data collected by the N base meters 110 and forwards the data to the concentrator 120.
Specifically, when the transmission distance between the base table 110 and the concentrator 120 is long, the repeaters 140 may be added, and only one repeater 140 is provided in this embodiment as an example. The repeater 140 can achieve versatility of hardware, can be used as a wireless repeater to transmit data when a low-cost wireless module is mounted, and can facilitate hooking of the repeater 140 through the concentrator 120 housing. In this embodiment, communication is established between the repeater 140 and the base table 110 and between the repeater 140 and the concentrator 120 via a wireless communication protocol. Thus, by providing the repeater 140, the data can be quickly, accurately, efficiently, and inexpensively relayed over a long distance between the base table 110 and the concentrator 120.
In addition, as shown in fig. 3, the concentrator 120 further includes an MCU122, a bluetooth module 124, a wireless module 125, a key 123, and a display module 126.
Specifically, MCU1122 is referred to collectively as a Microcontroller Unit, i.e., a microcontrol Unit.
The MCU122 is connected with the key 123 through an IO interface; the MCU122 is connected with the internet of things module 121, the bluetooth module 124 and the wireless module 125 through a serial port (UART) respectively; the MCU122 is connected to the display module 126 via a bus, for example, an IIC integrated circuit bus in the present embodiment.
Further, the key 123 cooperates with the MCU122 to control the concentrator 120 to switch the working modes; the wireless module 125 is used for wireless communication with the base table 110 or the repeater 140; the display module 126 is used for displaying time information or setting information.
In addition, the bluetooth module 124 is wirelessly connected to an external mobile terminal, and the external mobile terminal obtains data collected by the base table or sets parameters of the base table through the bluetooth module 124.
Through the connection mode, the connection between the local Bluetooth of the concentrator 120 and the mobile terminal can be realized, so that the data and the state of the water meter can be checked in real time, and short-range man-machine interaction is realized.
In addition, as shown in fig. 4, the base table 110 includes a base table MCU111, a base table button 112, a base table display module 115, a metering module 116, a base table wireless module 114, and a valve control module 113.
The base meter MCU111 is respectively connected with the base meter key 112 and the valve control module 113 through an IO interface; the base meter MCU111 is connected with the base meter wireless module 114 through a serial port; the base meter MCU111 is connected with the base meter display module 115 through a bus; the base meter MCU111 is connected to the metering module 116 via a Serial Peripheral Interface (SPI).
Further, the metering module 116 receives a control instruction sent by the base table MCU111 to execute a corresponding operation; the base meter radio 114 is for wireless communication with the concentrator 120; the base table keys 112 and the base table MCU111 cooperate to control the base table 110 to switch the working mode; the valve control module 113 is used for controlling a motor in the base meter 110 to drive a ball valve to act to block the water inlet so as to shut down the base meter 110.
In one embodiment, the base table key 112 uses a touch key, and when a key is operated, a high level signal is generated, and the main control MCU111 determines whether there is a key operation by detecting the high or low level of the pin.
In the valve control module 113, the main control MCU111 controls the on/off of the valve control switch through the high/low level of the GPIO (general purpose input/output) pin to control the forward/reverse rotation of the motor, and the valve control module 113 mainly controls the motor to operate to drive the ball valve to operate to block the water inlet, thereby turning off the water meter. The valve control stroke range is 0-90 degrees, whether the limit switch is in place or not is monitored through the main control MCU111 to judge whether the valve is closed or opened, and therefore control over the valve is achieved. Specifically, when water in the pipe section is filled normally, water flows, and if the ball valve rotates by 90 degrees, the ball valve blocks the pipe section, so that no water flows through the pipe section. The two GPIOs are connected to IN1 and IN2 to control four states of the motor, wherein the control truth table is shown IN FIG. 5.
The base table wireless module 114 sends out the data of the main control MCU through the 2.4GHz band, and meanwhile, the verification and parameter setting of the base table 110 can be realized through the base table wireless module 114, and other modules can be additionally installed to replace the base table wireless module 114.
The base table display module 115 uses an LCD (i.e., a liquid crystal display) for display, the LCD uses a customized segment code screen, the number of pins can be saved by using an LCD driver chip, and meanwhile, the main control MCU111 reads an IIC address through IIC (i.e., an integrated circuit bus) communication to control the device to display different segment codes, thereby realizing the control of display.
The metering module 116 and the MCU111 communicate through the SPI, and send a read-write command through the SPI to realize the control of time measurement.
Therefore, through the high-efficiency connection and control of the main control MCU111 and each module and based on the low-cost base meter wireless module 114, the good cooperation operation among the modules can be realized, so that the base meter 110 can accurately, simply, conveniently and quickly measure and transmit water volume data, and the expenditure cost is saved. In addition, the base watch 110 is designed in a replaceable battery mode, so that the service life of the base watch can be effectively prolonged.
Further, as shown in FIG. 6, the metering module 116 is connected to the transducer 117, the temperature sensor 118, and the pressure sensor 119 via external hardware. The metering module 116 is used for measuring the flight time of sound waves in water flow; the transducer 117 is configured to convert an electrical signal sent by the metering module 116 into an ultrasonic signal, convert a received ultrasonic feedback signal into a feedback electrical signal, and send the feedback electrical signal to the metering module 116; temperature sensor 118 is used to measure the water flow temperature; the pressure sensor 119 is used to measure the water flow pressure.
Specifically, the chip of the metering module 116 may be connected to the transducer 117, the NTC (i.e., negative temperature coefficient) temperature resistor, and the NTC pressure resistor through external hardware, which allows for accurate measurement of the time of flight, temperature, and pressure of the acoustic wave in the water flow.
In addition, the operation modes of the base table 110 and the concentrator 120 include a frequency alignment mode, and after the base table 110 and the concentrator 120 enter the frequency alignment mode, the concentrator 120 sets the operation frequency of the base table 110 in a wireless manner.
Further, when the time reaches the preset meter reading time, the base meter 110 and the concentrator 120 perform time comparison operation; after time setting is finished, the base meter 110 receives a meter reading instruction of the concentrator and returns current data to the concentrator 120; the concentrator 120 receives the returned current data and returns a received instruction to the base meter 110, so that the meter reading is finished.
In a specific embodiment, in the initial state, the base table 110 and the concentrator 120 are both in the unified communication band and are in their respective operating frequencies after the frequency pairing is set, and the frequency pairing mode can be entered through key operation. In the frequency matching mode, the concentrator 120 sends a corresponding working frequency band to the base table 110, and the base table 110 switches to the working frequency band after receiving the working frequency band sent by the concentrator 120, so that the frequency matching is finished. In addition, verification is required after the base tables 110 are produced and assembled, corresponding instructions can be sent in a wireless mode to enter a verification mode, the frequency range of each base table 110 in the verification mode is an address sent by test software, and the base tables automatically enter a user mode after the verification mode exits, so that the measurement precision of the base tables is improved, and the accuracy of subsequent data transmission is ensured.
Through the process, accurate frequency alignment can be realized, automatic meter reading action is completed after the frequency alignment, data can be rapidly, stably and accurately acquired and transmitted, manual errors are avoided, and the overall working efficiency is improved.
In one embodiment, the operating frequency ranges of the base meter wireless module 114 of the base meter 110 and the wireless module 125 of the concentrator 120 are between 2.402GHz and 2.528 GHz.
Specifically, as shown in fig. 7, the frequency bands 2.402GHz to 2.528GHz that can be set by the base table 110 and the concentrator 120 are 64, and both the base table 110 and the concentrator 120 can set these parameters online, and theoretically there can be 64 × 64=4096 combination ways, that is, 4096 block base tables can be mounted, so that the wide coverage characteristics of the NB-IOT module/CAT 1 module can be fully utilized, a greater number of base tables can be connected through a single concentrator 120, the raw material cost is saved, and fast transmission, immediate control and unified management are realized.
The multi-user thing networking water gauge system of embodiment of this application, including N base table, concentrator and water utilities management platform, N base table and concentrator wireless connection, N base table is with the data wireless transmission who gathers to the concentrator, and the concentrator then includes thing networking module, through thing networking module and water utilities management platform wireless network connection to upload data to water utilities management platform. The system realizes the connection between the base meter and the concentrator through a wireless communication protocol and realizes the connection between the concentrator and a water service management platform through a network communication protocol, so that the short-distance low-cost communication can be realized, the Internet of things module can be used more efficiently, the material cost of a single water meter is reduced, and the rapid transmission, the instant control and the unified management of data are realized based on wider coverage. Meanwhile, the wireless connection of the multi-user water meters is realized, and the single concentrator can be used for hanging the multi-user water meters, so that the metering data of more water meters can be automatically acquired and transmitted quickly and accurately, the manual error is avoided, and the overall working efficiency is improved. Moreover, the water meter battery in the system can be exchanged, and the power consumption of the module of the Internet of things is low, so that the overall stability and the practicability of the system are higher.
The above description is only for the purpose of illustrating the present invention, and the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept within the technical scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
It should be noted that in the description of the present specification, reference to the description of "one embodiment", "some embodiments", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Claims (10)
1. A multi-user Internet of things water meter system is characterized by comprising N base meters, a concentrator and a water management platform,
the N base tables are in wireless connection with the concentrator, and the N base tables wirelessly transmit the acquired data to the concentrator;
the concentrator comprises an Internet of things module, the concentrator is in wireless network connection with the water service management platform through the Internet of things module, and the concentrator uploads the data to the water service management platform.
2. The multi-user internet of things water meter system of claim 1, further comprising a repeater,
the repeater is respectively connected with the N base tables and the concentrator, receives data collected by the N base tables and forwards the data to the concentrator.
3. The multi-user internet of things water meter system of claim 1, wherein the internet of things module is an NB-IOT module or a CAT1 module.
4. The multi-user internet of things water meter system of claim 2, wherein the concentrator further comprises an MCU, a Bluetooth module, a wireless module, a key and a display module,
the MCU is connected with the keys through an IO interface;
the MCU is respectively connected with the Internet of things module, the Bluetooth module and the wireless module through serial ports;
the MCU is connected with the display module through a bus;
the key and the MCU are matched to control the concentrator to switch working modes;
the wireless module is used for wirelessly communicating with the base table or the repeater;
the display module is used for displaying time information or setting information.
5. The multi-user Internet of things water meter system of claim 1, wherein the base meter comprises a base meter MCU, a base meter key, a base meter display module, a metering module, a base meter wireless module and a valve control module,
the base meter MCU is respectively connected with the base meter keys and the valve control module through an IO interface;
the base meter MCU is connected with the base meter wireless module through a serial port;
the base meter MCU is connected with the base meter display module through a bus;
the base table MCU is connected with the metering module through a serial peripheral interface, and the metering module receives a control instruction sent by the base table MCU to execute corresponding operation;
the base meter wireless module is used for wirelessly communicating with the concentrator;
the base table key and the base table MCU are matched to control the base table to switch the working mode;
the valve control module is used for controlling a motor in the base meter to drive the ball valve to act to block the water inlet so as to realize the turn-off of the base meter.
6. The multi-user internet of things water meter system of claim 4, wherein the Bluetooth module is in wireless connection with an external mobile terminal, and the external mobile terminal acquires data collected by the base meter or sets parameters of the base meter through the Bluetooth module.
7. The multi-user internet of things water meter system of claim 5, wherein the metering module is connected with the transducer, the temperature sensor and the pressure sensor through external hardware,
the metering module is used for measuring the flight time of sound waves in water flow;
the transducer is used for converting the electric signal sent by the metering module into an ultrasonic signal, converting the received ultrasonic feedback signal into a feedback electric signal and sending the feedback electric signal to the metering module;
the temperature sensor is used for measuring the temperature of the water flow;
the pressure sensor is used for measuring the water flow pressure.
8. The multi-user internet of things water meter system of claim 1, wherein the operating frequency bands of the wireless module of the base meter and the wireless module of the concentrator are between 2.402GHz and 2.528 GHz.
9. The multi-user internet of things water meter system of claim 1, wherein the operating modes of the base meter and the concentrator include a frequency-to-frequency mode,
and after the base table and the concentrator enter the frequency matching mode, the concentrator sets the working frequency of the base table in a wireless mode.
10. The multi-user internet of things water meter system of claim 9, comprising:
when the time reaches the preset meter reading time, the base meter and the concentrator perform time comparison operation;
after time setting is finished, the base meter receives a meter reading instruction of the concentrator and returns current data to the concentrator;
and the concentrator receives the returned current data and returns a received instruction to the base table, and the meter reading is finished.
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