TWI721312B - Wireless meter reading system for reading water meter and method thereof - Google Patents

Abstract

This invention provides a wireless meter reading system for reading water meter and a method thereof, which comprises a wireless water meter interface subsystem and a smart networked NB-IoT water meter interface subsystem, which is wirelessly connected to multiple digital water meters and wirelessly connected to the water meter reading control center. The wireless meter reading system for reading the water meter of this invention has security functions to prevent hackers from invading the system and stealing data, and can provide water company revenue service modes for transmitting the water meter information to the remote water meter reading system service center in order to reduce the manpower in the meter reading work.

Description

Wireless meter reading system and method for reading water meter

The present invention relates to a water meter reading technology, in particular to a wireless meter reading system and method for water meter reading.

The existing automated multi-purpose utility water meter readout system, in the US Patent No. 4940976A "Automated remote water meter readout system", uses a remote receiver to store data from multiple meters, and uses a telephone line, CATV The cable or RF link periodically sends the data to the data processing center. The system is powered by a new solid-state thermoelectric generator, which converts the surrounding thermal energy into electrical energy and provides an extremely long operating life, far exceeding the requirements of the device.

In the US Patent No. 8279080B2 "Systems and methods for remote utility metering and meter monitoring" case, a remote water meter monitoring system is provided. The remote water meter monitoring system of this embodiment has: a water meter main body that connects a water supply source with a water user; a flow sensor housed in the water meter main body, the flow sensor being configured to measure the bidirectional flow rate of water passing through the water meter; and including at least one battery , At least one capacitor, at least one rectifier circuit and a power supply system of a generator, wherein the generator is powered by the water flow through the main body of the water meter, the controller is communicatively coupled to the main body of the water meter and the power supply system, and at least one is connected to the controller Antenna. According to another embodiment of the present invention, a wireless remote water meter monitoring network is provided.

In the "Utility meter interface unit" case of US Patent No. 6424270B1, a meter interface unit (MIU) is used to transmit utility consumption information of a utility meter to a remote location through RF or other suitable types of transmission. The MIU includes an antenna electrically coupled to the transmitter device. The microprocessor is used to start reading the usage information from the meter encoder associated with the meter, and control the transmission of the information at a selected time.

At present, the water meter reading system can be roughly divided into three types: manual meter reading, wired meter reading and wireless meter reading. In the early stage, due to the relationship between technology and cost, manual meter reading still accounted for the majority, but due to the increasing labor cost year by year, and the location of the water meter Different, the meter value cannot be read at one time, so the wired meter reading gradually replaces the traditional manual meter reading; but the wired meter reading also has wiring difficulties, and it cannot be directly pulled from the remote water meter reading system service platform center to the water meter location. Intermediate equipment must be relayed or regional equipment to the remote water meter reading system service platform center, so the wired way has a lot of shortcomings in line management, relay equipment management, etc.; similarly, wireless meter reading is in meter reading Although there is no complicated problem of the former, the relay equipment has the problem of relay equipment management, the power consumption problem of the water meter interface module, and the way to upload to the remote water meter reading system service platform center. It can be seen that there are currently existing problems. The water meter reading system service still has many shortcomings, which is not a good system and method.

In view of the shortcomings derived from the above-mentioned conventional methods, the inventor of this case is eager to innovate, and after years of research, finally successfully developed this piece of wireless water meter reading with information security function to prevent hackers from stealing data. Meter reading system and method.

The purpose of the present invention is to provide a wireless meter reading system and method for reading water meters, find simple and effective devices, improve remote water meter reading systems and methods, and solve the problem of using traditional meter reading or using wired meter reading systems in the past And the method solves the difficulty of labor cost and line maintenance, and uses low-cost and convenient mechanism to complete the convenience of water meter reading.

The second purpose of the present invention is to provide information security services to prevent hackers from intruding and stealing data, and to effectively upload the meter readings and status to the remote water meter reading system service platform center to prevent hackers from intruding, so that the information does not leak and cause customers’ complaints. Troubled.

To achieve the above objective, the present invention provides a wireless meter reading system for reading water meters, including: a wireless water meter interface subsystem, which includes: a plurality of digital water meter devices; a plurality of wireless water meter interface control modules, which It is respectively connected to the plurality of digital water meter devices in a serial manner to receive data from each of the plurality of digital water meter devices; a plurality of wireless relay modules, each of which is wirelessly connected to the plurality of wireless water meters Interface control module or another wireless relay module to provide relay wireless signals; wireless communication host module, which is wirelessly connected to the multiple wireless relay modules or the multiple wireless water meter interface control modules Group to receive data from the multiple digital water meter devices; and a wireless base station, which is wirelessly connected to the wireless communication host module; a smart networked NB-IoT water meter interface subsystem, which includes: the multiple Digital water meter equipment; multiple NB-IoT water meter interface control modules, which are respectively connected to the multiple digital water meter devices in a serial manner to receive data from each of the multiple digital water meter devices; and NB -IoT base station, which is wirelessly connected to the multiple NB-IoT water meter interface control modules to receive data from the multiple digital water meter devices; and the water meter reading control center platform, which is through the Internet Connected to the wireless water meter interface subsystem and the smart networked NB-IoT water meter interface subsystem to obtain the status of the multiple digital water meter devices, and update the multiple NB-IoT water meter interface control modules, The plurality of wireless water meters are interfaced with a control module, the plurality of wireless relay modules, and the wireless communication host module.

The present invention also provides a wireless meter reading method for reading water meters, including: configuring a wireless water meter interface subsystem, which includes: respectively serially connecting multiple wireless water meter interface control modules to multiple digital water meter devices , To receive data from each of the multiple digital water meter devices; wirelessly connect multiple wireless relay modules to the multiple wireless water meter interface control modules or another wireless relay module to provide relay wireless signals ; Wirelessly connect the wireless communication host module to the multiple wireless relay modules or the multiple wireless water meter interface control modules to receive data from the multiple digital water meter devices; and wirelessly connect the wireless base station to the Wireless communication host module; equipped with intelligent networked NB-IoT water meter interface subsystem, which includes: serially interface multiple NB-IoT water meter interface control modules to multiple digital water meter devices to receive data from each Data of multiple digital water meter devices; and wirelessly connect the NB-IoT base station to the multiple NB-IoT water meter interface control modules to receive data from the multiple digital water meter devices; and connect via the Internet The water meter reading control center platform is used in the wireless water meter interface subsystem and the smart networked NB-IoT water meter interface subsystem to obtain the status of the multiple digital water meter devices, wherein the water meter reading control center platform is used To update the plurality of NB-IoT water meter interface control modules, the plurality of wireless water meter interface control modules, the plurality of wireless relay modules, and the wireless communication host module.

In the aforementioned wireless meter reading system for reading water meters, the wireless water meter interface control module and the wireless relay module, the wireless water meter interface control module and the wireless communication host module, the wireless middle The relay modules or the other wireless relay module, and the wireless relay module or the wireless communication host module receive and transmit data through 433MHz or 920MHz frequency band RF communication.

In the aforementioned wireless meter reading system for reading water meters, the network communication protocol between the wireless communication host module and the wireless base station is established by UDP.

In the aforementioned wireless meter reading system and method for reading water meters, the wireless connection between the wireless water meter interface subsystem and the smart networked NB-IoT water meter interface subsystem is through an information security element (SE) Established to ensure the correctness of the data in the message transmission process and prevent hackers from intruding and stealing data.

In the aforementioned wireless meter reading system and method for reading water meters, the water meter reading control center platform updates the wireless water meter interface subsystem and the firmware of the smart networked NB-IoT water meter interface subsystem is OTA Remote wireless update.

In order to achieve the above-mentioned purpose of the invention, the wireless meter reading system for reading water meters of the present invention is the most basic device of the wireless meter reading system for reading water meters is a digital water meter device to read the degree and status value of the water meter. The status value includes The number of days of water leakage, days of insufficient power, days of inactivity, etc., digital water meter equipment is installed according to user needs. The wireless meter reading system used to read the water meter can be roughly divided into two different methods. There are wireless water meter interface subsystem or smart networked NB-IoT water meter interface subsystem. The actual use depends on communication and installation requirements. You can choose one of the two. Each 4G wireless communication host module in the wireless water meter interface subsystem can respectively communicate with multiple wireless water meter interface control modules to send and upload data to the platform used to read the water meter's wireless meter reading system. In the smart networked NB-IoT water meter interface subsystem, each NB-IoT water meter interface control module directly sends and uploads data to the water meter reading control center platform.

In addition, both the wireless water meter interface subsystem or the smart networked NB-IoT water meter interface subsystem are encrypted with SE information security components to confirm that the data will not be leaked or hacked. Each uploaded data provides upload time for verification. For wireless water meter interface control module or NB-IoT water meter interface control module, battery-powered circuits provide timing and short-period sleep wake-up processing functions to reduce power consumption. When the battery power reaches the low battery indicator, provide the remote wireless water meter reading control center platform to warn and send personnel to replace the equipment. Of course, it also provides alarms and dispatches personnel to deal with the status values of digital water meter equipment such as water leakage and insufficient power.

Furthermore, the wireless water meter reading control center platform commands to add or update or use equipment such as wireless water meter interface control module, 4G wireless communication host module, NB-IoT water meter interface control module or wireless relay module video When the firmware needs to be updated, the function of updating the firmware over the air (Over The Air, referred to as OTA) is provided.

The invention uses the NB-IoT module or the RF wireless communication of the ISM channel to automatically upload the effective meter reading information such as the water meter degree and status to the remote water meter reading system service platform center through the 4G to RF relay module function; and The water company can set a designated date and time for automatic meter reading, and can also perform short periodical meter reading or status query and control to achieve the purpose of wireless water meter reading services.

In addition, the present invention also provides over-the-air (Over The Air, referred to as OTA) firmware update, and uses embedded secure components in information transmission to improve information security functions to prevent hackers from intruding and stealing data, and to reduce standby time on the basis of disposable battery power. Power consumption.

In order to achieve the above objectives, the present invention can provide system commands and methods as follows: Real-time time control command request: When the wireless water meter interface control module or the NB-IoT water meter interface control module power supply, the wireless water meter reading control center platform is required Provide real-time time; real-time time response: the wireless water meter reading control center platform responds to the correct real-time time to the wireless water meter interface control module or NB-IoT water meter interface control module and updates the real time clock (real time clock); RF channel Setting control command request: When the wireless water meter interface control module RF channel is interfered or needs to be changed, the wireless water meter reading control center platform requests the wireless water meter interface control module RF channel setting control to change the communication channel; RF channel setting response: When the wireless water meter interface control module receives the RF channel setting control command request, it responds to the received RF channel setting control command and changes the RF channel. At the same time, the related wireless relay module or 4G wireless communication host module must also be reset RF channel can be connected; device serial code, software version, hardware version and manufacturer query: wireless water meter reading control center platform query wireless water meter interface control module or NB-IoT water meter interface control module device serial code, Software version, hardware version, and manufacturer’s requirements; device serial code, software version, hardware version and manufacturer’s response: wireless water meter interface control module or NB-IoT water meter interface control module will set the device serial code and software version , The hardware version and the manufacturer’s response to the wireless water meter reading control center platform; digital water meter ID value query: the wireless water meter reading control center platform queries the digital of the wireless water meter interface control module or the NB-IoT water meter interface control module Water meter ID value requirements.

Digital water meter ID value response: wireless water meter interface control module or NB-IoT water meter interface control module responds to the wireless water meter interface control module's digital water meter ID value to the wireless water meter reading control center platform; water meter interface device Battery voltage query: The wireless water meter reading control center platform queries the battery voltage requirements of the water meter interface device of the wireless water meter interface control module or the NB-IoT water meter interface control module; the battery voltage of the water meter interface device and whether the battery is low response: The wireless water meter interface control module or the NB-IoT water meter interface control module responds the battery voltage of the water meter interface device to the wireless water meter reading control center platform; specifies the low-energy sleep wake-up date and time setting command request; specifies the low energy consumption Sleep wake-up date and time response; Short periodic low-energy sleep time setting command request; Short periodic low-energy sleep time response; Replace RF ID control command request; Replace RF ID response; Read water meter reading and status complete reading Meter value command request; read water meter degree and status complete meter reading response; read water meter degree simplified meter reading request; read water meter degree simplified meter reading response; read water meter instantaneous flow meter reading command request; and read The instantaneous flow rate reading of the water meter responds.

The present invention provides information security services to prevent hackers from intruding and stealing data. In the wireless meter reading system used to read water meters, digital water meter equipment is the most basic device, responsible for reading the water meter's degree and status value, and through the wireless water meter interface Connect to the control module or the NB-IoT water meter interface control module interface, and then upload to the wireless water meter reading control center platform through the Internet; the water meter reading system that is widely used nowadays is nothing more than wired, wireless and IC cards Interfacing and other control methods; the use of wired wiring is expensive, and the line maintenance is not easy; the IC card must be prepaid a certain amount. If the amount is insufficient, there will be water cuts and increased troubles. The general wireless water meter reading interface method has the shortcomings such as dead angle and interference; the present invention overcomes this shortcoming, so that the wireless meter reading system for reading water meters can achieve the goals of more stability, low cost, and better expansion flexibility.

10‧‧‧Digital water meter equipment

20‧‧‧Wireless water meter interface control module

30‧‧‧Wireless Relay Module

40‧‧‧4G wireless communication host module

50‧‧‧4G network communication protocol

60‧‧‧RF communication

70‧‧‧4G base station

71‧‧‧NB-IoT base station

80‧‧‧NB-IoT Smart Networking Communication Protocol

90‧‧‧NB-IoT water meter interface control module

100‧‧‧Wireless water meter interface subsystem

200‧‧‧Smart networked NB-IoT water meter interface subsystem

201‧‧‧Single Crystal Microcontroller

202‧‧‧LED indicator

203‧‧‧RF wireless interface module

204‧‧‧Micro button

205‧‧‧Water meter interface circuit

206‧‧‧SE circuit

207‧‧‧antenna

208‧‧‧Battery and power supply circuit

300‧‧‧Internet

400‧‧‧Water meter reading control center platform

401‧‧‧Single Crystal Microcontroller

402‧‧‧LED indicator

403‧‧‧4G interface module

404‧‧‧Micro button

405‧‧‧RF wireless interface module

406‧‧‧SIM card interface circuit

407‧‧‧antenna

408‧‧‧Power supply circuit

901‧‧‧Single Crystal Microcontroller

902‧‧‧LED indicator

903‧‧‧NB-IoT interface module

904‧‧‧Micro button

905‧‧‧Water meter interface circuit

906‧‧‧SIM card interface circuit

907‧‧‧SE circuit

908‧‧‧antenna

909‧‧‧Battery and power supply circuit

Please refer to the detailed description of the present invention and its accompanying drawings to further understand the technical content of the present invention and its purpose and effects; the relevant drawings are: Figure 1 is the wireless meter reading system for reading water meters of the present invention Architecture diagram.

Figure 2 is a circuit block diagram of the wireless water meter interface control module of the present invention.

Figure 3 is a circuit block diagram of the 4G wireless communication host module of the present invention.

Figure 4 is a circuit block diagram of the NB-IoT water meter interface control module of the present invention.

Please refer to Figure 1. The wireless meter reading system and method for reading water meters of the present invention includes a wireless water meter interface subsystem 100, a smart networked NB-IoT water meter interface subsystem 200, and the Internet 300 and the wireless water meter reading control center platform 400. The following detailed description of the present invention and its accompanying drawings will provide a better understanding of the technical content and purposes and effects of the present invention. The relevant drawings are described as follows.

The digital water meter device 10 is the basic equipment for wireless water meter reading. It uses the wireless water meter interface subsystem 100 or the smart networked NB-IoT water meter interface system 200 to upload to the wireless water meter reading control center platform 400 (wisdom Networking IOT platform).

The wireless water meter interface subsystem 100 has the following architecture. The digital water meter device 10, the wireless water meter interface control module 20, and the digital water meter device 10 are connected in a serial manner and then transmit data through wireless transmission; wireless relay The main function of the module 30 is used as a relay; the 4G wireless communication host module 40 converts the wireless transmission data into 4G and transmits the data in UDP communication format and uploads the data to the intelligent networking IOT platform; and the 4G base station 70 is connected to the Internet 300 . Between wireless water meter interface control module and wireless relay module 30, wireless water meter interface control module 20 and 4G wireless communication host module 40, wireless relay module 30, or wireless relay module 30 and 4G wireless The 433MHz or 920MHz frequency band RF communication 60 is used to send and receive data between the communication host modules 40 and the like. The 4G wireless communication host module 40 and the 4G base station 70 are connected in a UDP manner according to the 4G networking communication protocol 50.

The smart networked NB-IoT water meter interface subsystem 200 has the following architecture. The digital water meter device 10, the NB-IoT water meter interface control module 90 and the digital water meter device 10 are connected in a serial manner; and NB-IoT The base station 71 is connected to the Internet 300. The NB-IoT water meter interface control module 90 and the NB-IoT base station 71 are connected by UDP according to the NB-IoT smart networking communication protocol 80.

The Internet 300 can be connected to 4G base stations, NB-IoT base stations, and smart networking IOT platforms.

The intelligent networking IOT platform mainly provides the wireless water meter reading control center platform 400.

Please refer to Figure 2, which is a circuit block diagram of the wireless water meter interface control module 20, in which the single crystal microcontroller 201 includes a low power consumption single crystal microcontroller embedded memory, RTC clock, Timer, I/ O, UART, SPI, I2C and A/D, D/A functions; LED indicator 202 circuit provides status indication function; RF wireless interface module 203 uses 433MHz or 920MHz frequency band to provide wireless transmission and reception functions; micro button 204 provides Reset (RESET), wake up or perform specific functions. The water meter interface circuit 205 reads the degree, status value or water valve control of the water meter according to the relevant control interface provided by the digital water meter equipment; the SE (Security Element) circuit 206 provides information security requirements, using anti-tampering chips to ensure data storage and transmission in safe applications Program method; the antenna 207 provides a built-in antenna or an external antenna circuit, a battery, and a power supply circuit 208 according to the installation method.

The wireless water meter interface control module mainly has the following functions: receiving control commands from the water meter reading center platform through the 4G to RF relay device module, and transmitting water meter response information to the water meter reading center platform through the 4G to RF relay device module , Read digital water meter readings and status values, use disposable batteries, provide low-energy and power-saving sleep function, provide accurate RTC real-time clock settings, can change different channels to avoid interference, provide designated low-energy sleep wake-up date and time, and Short periodic low-energy sleep time extends battery life, and provides security element (SE) processing to prevent hackers from intruding.

Figure 3 is a circuit block diagram of the 4G wireless communication host module 40, where the single crystal microcontroller 401 includes a low power consumption single crystal microcontroller embedded memory, RTC clock, Timer, I/O, UART, SPI , I2C and A/D, D/A functions; LED indicator 402 circuit provides status indication function, 4G interface module 403, provides 4G UDP communication format and message transmission and reception functions; micro button 404 provides reset (RESET ), wake up or perform specific functions; RF wireless interface module 405 uses 433MHz or 920MHz frequency band to provide wireless transmission and reception; SIM card interface 406 circuit provides 4G SIM card control interface; antenna 407 provides 4G interface module and wireless interface module The antenna and the impedance matching circuit required by the group may be a built-in antenna or an external antenna circuit, and the power supply circuit 408 may be used.

The main functions of the 4G wireless communication host module are as follows: the wireless water meter reading control center platform UDP control command packet is received via the 4G network and converted into an RF control command information packet, which is then transmitted to the RF water meter interface device module via the RF communication interface, The RF response information packet of the water meter interface device module is received through the RF communication interface and converted into a UDP response information packet, which is then sent to the wireless water meter reading control center platform via the 4G network. It can provide more than 200 sets of water meter interface device modules to relay separately Send and receive, can change different channels to avoid interference, and provide accurate RTC real-time clock settings.

Figure 4 is a circuit block diagram of the NB-IoT water meter interface control module 90, where the single crystal microcontroller 901 includes a low power consumption single crystal microcontroller embedded memory, RTC clock, Timer, I/O, UART, SPI, I2C and A/D, D/A functions; LED indicator 902 circuit provides status indication function; NB-IoT interface module 903 provides NB-IoT communication format and message transmission and reception functions in UDP; micro buttons 904 provides reset, wake up or perform specific functions; water meter interface circuit 905 provides related control interfaces to read water meter degrees, status values or water valve control based on digital water meter equipment; SIM card interface 906 circuit provides NB-IoT SIM card Control interface; SE (Security Element) circuit 907 provides information security requirements, using tamper-proof chips to ensure data storage and transmission in a safe application mode; antenna 908 provides built-in antenna or external antenna circuit according to the installation method; and battery and power supply circuit 909.

The NB-IoT water meter interface control module mainly has the following functions: receiving control commands from the water meter reading center platform through the NB-IoT base station, transmitting water meter response information to the water meter reading center platform through the NB-IoT base station, and reading numbers Type water meter reading and status value, using disposable battery, providing low energy and power saving sleep function, providing accurate RTC real-time clock setting, changing different channels to avoid interference, providing designated low-energy sleep wake-up date and time and short periodicity Energy-consuming sleep time extends battery life, and anti-hacker intrusion provides information security component processing.

The wireless water meter reading control center platform of the present invention provides a server as a database and bridge for communication between the user's water meter equipment using the wireless water meter interface subsystem or the smart networked NB-IoT water meter interface subsystem, and its functions are as follows: Database setting; wireless water meter connection control module RF channel setting query; NB-IoT water meter connection control module parameter setting and query; real-time response, device serial code, software version, hardware version and manufacturer query; Digital water meter ID value query; water meter interface device battery voltage query; designated low-energy sleep wake-up date and time setting; short periodic low-energy sleep time setting; read water meter readings and status complete meter reading values; read water meter readings simplified Meter reading value; instantaneous flow meter reading value of water meter; information security component update; water meter interface device firmware update; and obstacle declaration and dispatch notification.

The present invention allows the water utility company to set to read the water meter value and status value regularly or to read the water meter value and status value in a short period of time or provide the above setting or update function, providing safety and convenience, saving labor costs, regardless of reading The meter reading service with high reliability is achieved by the degree or maintenance, so the present invention exerts the functions required by the wireless water meter reading service system.

The wireless meter reading system and method for water meter reading provided by the present invention has the following advantages when compared with other conventional technologies:

1. Add or remove water meter interface control module equipment: The wireless water meter reading control center platform can add or remove the user's wireless water meter interface control module equipment or NB-IoT water meter interface control module equipment message transmission at any time .

2. Information security meter reading: Use information security components (SE) to ensure data accuracy and prevent hackers from stealing data in the process of message data access or message transmission.

3. Reading degree and time: When reading data such as the degree value and status value of each digital water meter, the upload time is displayed at the same time.

4. Specify the low-energy sleep wake-up date and time: The wireless water meter reading control center platform can set the next specified wake-up date and time to read the digital water meter's degree value and status value, etc., reducing the wireless water meter interface control module or NB-IoT The water meter is connected to the control module because of the energy consumption of the waiting process.

5. Short periodic low-energy sleep time: The wireless water meter reading control center platform can set short periods such as minutes or hours to provide specific functions such as battery voltage testing, firmware update, device serial code, software version, Hardware version and manufacturer query, digital water meter ID value query, water meter interface device battery voltage query, specified low-energy sleep wake-up date and time settings, etc.

6. Firmware update of water meter interface device: The wireless water meter reading control center platform provides the wireless water meter interface control module or the NB-IoT water meter interface control module device firmware update function via OTA.

7. Wireless water meter connection control module RF channel setting: The wireless water meter reading control center platform provides wireless water meter connection control module and 4G wireless communication host module equipment setting RF channel update.

8. Real-time time setting: Provide wireless water meter interface control module equipment or NB-IoT water meter interface control module equipment to update the real-time time.

9. RF wireless and 4G transmission message conversion: provide RF wireless transmission message format and 4G use UDP transmission message format conversion.

The above detailed description is a specific description of a possible embodiment of the present invention, but this embodiment is not intended to limit the scope of the patent of the present invention. Any equivalent implementation or modification that does not deviate from the technical spirit of the present invention should be included in In the scope of the patent in this case.

To sum up, this case is not only innovative in terms of technical ideas, but also can improve the above-mentioned multiple functions compared with conventional articles. It should fully meet the requirements of novel and progressive statutory invention patents. An application should be filed in accordance with the law. Please approve this case. Patent applications for inventions, to encourage invention, to the sense of virtue.

10‧‧‧Digital water meter equipment

20‧‧‧Wireless water meter interface control module

30‧‧‧Wireless Relay Module

40‧‧‧4G wireless communication host module

50‧‧‧4G network communication protocol

60‧‧‧RF communication

70‧‧‧4G base station

71‧‧‧NB-IoT base station

80‧‧‧NB-IoT Smart Networking Communication Protocol

90‧‧‧NB-IoT water meter interface control module

100‧‧‧Wireless water meter interface subsystem

200‧‧‧Smart networked NB-IoT water meter interface subsystem

300‧‧‧Internet

400‧‧‧Water meter reading control center platform

Claims (8)

A wireless meter reading system for reading water meters includes: a wireless water meter interface subsystem, which includes: a plurality of digital water meter devices; a plurality of wireless water meter interface control modules, which are respectively connected in series with The plurality of digital water meter devices to receive data from each of the plurality of digital water meter devices; a plurality of wireless relay modules, each of which is connected to the plurality of wireless water meter interface control modules or another by means of RF communication A wireless relay module to provide relay wireless signals; a wireless communication host module, which is connected to the plurality of wireless relay modules or the plurality of wireless water meter interface control modules by means of RF communication to receive from the Data of a plurality of digital water meter devices; and a wireless base station, which is wirelessly connected to the wireless communication host module; a smart networked NB-IoT water meter interface subsystem, which includes: the plurality of digital water meter devices; A NB-IoT water meter interface control module, which is respectively connected to the plurality of digital water meter devices in a serial manner to receive data from each of the plurality of digital water meter devices; and an NB-IoT base station, which Wirelessly connect to the plurality of NB-IoT water meter interface control modules to receive data from the plurality of digital water meter devices; and The water meter reading control center platform is connected to the wireless water meter interface subsystem and the smart networked NB-IoT water meter interface subsystem through the Internet to obtain the status of the multiple digital water meter devices, and the water meter reading The meter control center platform updates the multiple NB-IoT water meter interface control modules, the multiple wireless water meter interface control modules, the multiple wireless relay modules, and the wireless communication host module; wherein, the wireless water meter The wireless connection between the interface subsystem and the smart networked NB-IoT water meter interface subsystem is established through the information security component (SE) to ensure the correctness of the data in the message transmission process and prevent hackers from stealing data. The wireless meter reading system for reading water meters as described in the first item of the scope of patent application, wherein the wireless water meter interface control module and the wireless relay module, the wireless water meter interface control module and the wireless meter The communication host module, the wireless relay module or the other wireless relay module, and the wireless relay module or the wireless communication host module are received and transmitted through 433MHz or 920MHz frequency band RF communication data. The wireless meter reading system for reading water meters as described in item 1 of the scope of patent application, wherein the network communication protocol between the wireless communication host module and the wireless base station is established by UDP. The wireless meter reading system for reading water meters as described in item 1 of the scope of patent application, wherein the water meter reading control center platform updates the wireless water meter interface subsystem and the smart networked NB-IoT water meter interface subsystem The firmware is updated wirelessly via OTA remote. A wireless meter reading method for reading water meters includes: Configuring the wireless water meter interface subsystem includes the following steps: respectively serially connecting multiple wireless water meter interface control modules to multiple digital water meter devices to receive data from each of the multiple digital water meter devices; RF The communication method connects a plurality of wireless relay modules to the plurality of wireless water meter interface control modules or another wireless relay module to provide a relay wireless signal; the RF communication method connects the wireless communication host module to the plurality of wireless The relay module or the multiple wireless water meters interface with the control module to receive data from the multiple digital water meter devices; and wirelessly connect the wireless base station to the wireless communication host module; configure a smart networked NB-IoT water meter The interface subsystem includes the following steps: respectively serially interface a plurality of NB-IoT water meter interface control modules to a plurality of digital water meter devices to receive data from each of the plurality of digital water meter devices; and wireless Connect the NB-IoT base station to the multiple NB-IoT water meter interface control modules to receive data from the multiple digital water meter devices; and connect the water meter reading control center platform to the wireless water meter interface via the Internet Connection subsystem and the smart networked NB-IoT water meter interface subsystem to obtain the status of the multiple digital water meter devices, wherein the water meter reading control center platform is used to update the multiple NB-IoT water meter interfaces Control module, the multiple wireless water meter interface control modules, the multiple wireless water meters The line relay module and the wireless communication host module; wherein the wireless connection between the wireless water meter interface subsystem and the smart networked NB-IoT water meter interface subsystem is established through information security components (SE), To ensure the correctness of the data in the message transmission process and prevent hackers from intruding and stealing data. The wireless meter reading method for reading water meters as described in item 5 of the scope of patent application, wherein the wireless water meter interface control module and the wireless relay module, the wireless water meter interface control module and the wireless The communication host module, the wireless relay module or the other wireless relay module, and the wireless relay module or the wireless communication host module are received and transmitted through 433MHz or 920MHz frequency band RF communication data. The wireless meter reading method for water meter reading described in item 5 of the scope of patent application, wherein the network communication protocol between the wireless communication host module and the wireless base station is established by UDP. The wireless meter reading method for reading water meters as described in item 5 of the scope of patent application, wherein the water meter reading control center platform updates the wireless water meter interface subsystem and the smart networked NB-IoT water meter interface subsystem The firmware of OTA is remotely updated wirelessly.

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