Remote water meter reading system

Abstract

A remote water meter reading system comprises a photoelectric direct-reading water meter, a LoRa meter reading module, a wireless repeater, a LoRa data gateway and a central computer, the photoelectric direct-reading water meter measures water consumption in real time and converts mechanical readings into electronic signals, then the LoRa meter reading module reads the electronic signals of the water meter through an RS485 bus, the electronic signals are processed and encrypted, and the LoRa data gateway transmits the processed electronic signals to the central computer. The LoRa meter reading module is used for transmitting data in a LoRa wireless mode, a wireless signal transmitted by the LoRa meter reading module is directly received by the LoRa data gateway, the signal is amplified and forwarded remotely through the one-stage or multi-stage wireless repeater, and then the signal is received by the LoRa data gateway; and the LoRa data gateway receives the water meter data forwarded by the wireless repeater in a LoRa wireless mode, and performs protocol analysis and storage. And the central computer obtains the water meter data from the LoRa data gateway through the network port, analyzes and processes the water meter data, and realizes the functions of real-time monitoring, statistical analysis and early warning of the water consumption data.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water meter measurement technical field relates to a kind of remote water meter transcription system based on photoelectric direct-reading water meter and wireless communication technology. BACKGROUND

[0002] In water resource management, accurate metering of water consumption and timely data acquisition is very important. The traditional manual meter reading method has problems such as low efficiency, large error, poor real-time performance, etc. With the development of science and technology, remote meter reading system has gradually become an important means of water management. However, the existing remote meter reading system still has some deficiencies in some aspects, such as data transmission stability, water meter measurement accuracy, system endurance, etc. Therefore, a new type of remote water meter transcription system is needed to solve these problems. UTILITY MODEL CONTENT

[0003] The utility model aims to provide a remote water meter transcription system based on photoelectric direct-reading water meter and wireless communication technology, which can realize accurate reading, wireless transmission and centralized management of water meter data, and provide an efficient and convenient solution for water management.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A remote water meter transcription system includes a photoelectric direct-reading water meter, a LoRa meter reading module, a wireless repeater, a LoRa data gateway, and a central computer. The photoelectric direct-reading water meter is installed on a water pipeline. The power supply in the LoRa meter reading module provides working power for the LoRa meter reading module and the photoelectric direct-reading water meter. The wireless repeater is separately installed between the LoRa meter reading module and the LoRa data gateway. The LoRa data gateway is connected to the LoRa meter reading module through wireless means and to the central computer through wired means.

[0006] The photoelectric direct-reading water meter has a mechanical measurement main body and a photoelectric module inside. It uses photoelectric direct-reading technology to directly read the mechanical reading of the water meter, converts the reading into an electrical signal, and then outputs it to the LoRa meter reading module through the RS485 serial port.

[0007] The LoRa meter reading module is powered by a lithium battery or a solar panel. It is connected to the photoelectric direct-reading water meter through the RS485 bus and uses LoRa wireless communication technology to wirelessly transmit the read water meter data to the remote end.

[0008] The wireless repeater is used to enhance wireless signals and extend wireless transmission distance. It can be used as a single-stage repeater or multiple-stage repeater in series.

[0009] The LoRa data gateway comprises a power module, a serial port module, a LoRa module and an Ethernet module, and the LoRa data gateway receives wireless signals of the wireless repeater or the LoRa meter reading module directly through the LoRa module, stores and analyzes the data, and then transmits the data through the serial port module or the Ethernet module in a wired mode, thereby providing a data source for the central computer.

[0010] The central computer is connected with the LoRa data gateway through an Ethernet network, receives water consumption data of a plurality of water meters in real time, displays the data in a visual chart form, analyzes the water meter data, automatically sends a warning signal when an abnormal water consumption is found, and manages the entire remote meter reading system.

[0011] Principle of the utility model: firstly, the photoelectric direct-reading water meter measures water consumption in real time, and converts mechanical readings into electronic signals. Then, the LoRa meter reading module reads the electronic signals of the water meter through the RS485 bus, processes and encrypts the signals, and transmits the data through the LoRa wireless mode. When the distance of the wireless signal transmitted by the LoRa meter reading module is not too far, the signal can be directly received by the LoRa data gateway; when the distance is relatively far, the signal can be amplified and forwarded by the wireless repeater, and then received by the LoRa data gateway; when the distance is very far, the signal can be amplified and forwarded by the multi-stage wireless repeater, and then received by the LoRa data gateway. The LoRa data gateway receives the water meter data forwarded by the wireless repeater through the LoRa wireless mode, and performs protocol analysis and storage. The central computer obtains the water meter data from the LoRa data gateway through the network port, analyzes and processes the data, and realizes real-time monitoring, statistical analysis and early warning functions of water consumption data.

[0012] Innovative points and beneficial effects of the utility model:

[0013] (1) Application of photoelectric direct-reading technology: the photoelectric direct-reading water meter directly reads mechanical readings of the water meter, avoids errors that may occur in traditional pulse type water meters, and improves accuracy and reliability of data.

[0014] (2) LoRa wireless communication technology: the LoRa wireless communication technology is selected for data transmission, has advantages of long transmission distance, low power consumption and strong anti-interference ability, can adapt to complex environments, and ensures stable transmission of data.

[0015] (3) Intelligent repeater function: the wireless repeater is set to automatically enhance and forward signals, effectively solves problems of signal attenuation and interference, expands the coverage range of the system, and improves the overall performance of the system.

[0016] (4) Low power consumption design: The meter reading module and repeater in the system are designed with low power consumption, which prolongs the service life of the battery, reduces maintenance cost and workload.

[0017] (5) Data analysis and early warning function: The central computer has strong data analysis capability, which can analyze water consumption data in real time, discover abnormal situations in time and issue early warning, providing scientific basis and decision support for water management.

[0018] (6) Compared with the traditional manual meter reading method, the system realizes automatic meter reading, greatly improves the meter reading efficiency, and reduces the labor cost and error.

[0019] (7) Compared with other remote meter reading systems, the system uses optical direct-reading water meter and LoRa wireless communication technology, which has obvious advantages in data accuracy, transmission stability and power consumption.

[0020] (8) Compared with some simple wireless meter reading systems, the system adds wireless repeater, enhances the transmission capacity of the signal, and makes the system maintain good communication effect in a larger range.

[0021] (9) The data analysis and early warning function of the system can provide more in-depth information and decision support for water management, which helps to realize the intelligent management of water resources. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a remote water meter reading system architecture diagram.

[0023] Figure 2 is a connection diagram of optical direct-reading water meter and LoRa meter reading module.

[0024] Figure 3 is a wireless repeater structure schematic diagram.

[0025] Figure 4 is a LoRa data gateway structure schematic diagram. DETAILED DESCRIPTION

[0026] The utility model will be described in detail in combination with specific embodiments.

[0027] Figure 1As shown: In the water management of a residential area or an industrial park, the remote water meter reading system is installed. The photoelectric direct-reading water meter is installed on the water inlet pipe of each household. The LoRa meter reading module is connected with the water meter through the RS485 serial port. The water meter data is sent to the wireless repeater in the community through LoRa wireless signal. The repeater amplifies and forwards the signal to the LoRa data gateway, and finally the data is transmitted to the central computer. The management personnel can real-time view the water consumption of each household through the central computer, analyze the data and give early warning of abnormality, realizing the intelligentization and high efficiency of the water management of the community or industrial park. The structure and working mode of each part:

[0028] 1) Photoelectric direct-reading water meter: Figure 2 As shown, it is installed on the water pipe and has a mechanical measurement main body and a photoelectric module inside, which is used to read the mechanical reading of the water meter and then convert it into an electrical signal, and then output it through the RS485 serial port.

[0029] a. Measurement range: The pipe diameter range is 40-200mm, which is suitable for various water supply pipe specifications and meets the needs of different users.

[0030] b. Measurement principle: The photoelectric direct-reading technology is adopted to directly read the mechanical reading of the water meter, avoiding the errors that may occur in pulse water meters and ensuring the accuracy of the measurement data.

[0031] c. Water meter structure: The water meter is designed reasonably inside, with good waterproof and dustproof performance, and can work stably for a long time in harsh environments.

[0032] 2) LoRa meter reading module: Figure 2 As shown, it is generally installed together with the photoelectric direct-reading water meter. It is composed of power module, serial port module, LoRa module, etc. The power module can be powered by lithium battery alone, or can be powered by solar panel after adding power supply module. The power module not only supplies power to the LoRa meter reading module, but also provides 5V working power for the photoelectric direct-reading water meter. The serial port module obtains the water meter reading through the RS485 serial port, and after data processing, the LoRa module transmits the water meter reading in LoRa wireless mode.

[0033] a. Data reading: This module is connected with the photoelectric direct-reading water meter through the RS485 bus to read the water consumption data of the water meter in real time.

[0034] b. Wireless transmission: The LoRa wireless communication technology is adopted to send the read water meter data wirelessly to the remote end. LoRa technology has the advantages of long transmission distance, low power consumption, strong anti-interference ability, etc., which can ensure the stability and reliability of data transmission.

[0035] c. Power supply: The module is powered by lithium batteries, and can also be powered by solar panels. In order to prolong the service life of the battery, the module adopts a low-power design, which can work for more than 6 years without replacing the battery.

[0036] d. Data processing: The meter reading module has data processing function, which can preliminarily process and encrypt the data read from the water meter, to ensure the security and integrity of the data.

[0037] 3) Wireless repeater: Figure 3 As shown in the figure, it is generally installed separately between the LoRa meter reading module and the LoRa data gateway. It is composed of power module, LoRa module and other parts. The power module can be powered by lithium battery alone, or can be powered by solar panel after adding power supply module. The wireless repeater receives the wireless signal through the LoRa module, amplifies the signal and transmits it again in the form of LoRa wireless.

[0038] a. Signal enhancement: In the process of signal transmission between the water meter and the LoRa data gateway, signal attenuation or interference may occur. The wireless repeater is used to enhance the wireless signal to ensure that the data can be transmitted stably to the LoRa data gateway.

[0039] b. Self-adaptability: The repeater has self-adaptive function, which can automatically adjust the amplification multiple according to the signal strength to achieve the best signal transmission effect.

[0040] c. Easy installation: The repeater adopts wall-mounted or pole-mounted installation, which is simple and convenient to install without complex wiring engineering.

[0041] 4) LoRa data gateway: Figure 4 As shown in the figure, it is generally installed in the electrical room and composed of power module, serial module, LoRa module, Ethernet module and other parts. The LoRa data gateway receives the wireless signal of the wireless repeater or the LoRa meter reading module directly through the LoRa module, parses and stores the data, and transmits the data in wired mode through the serial module or Ethernet module to provide data source for the center computer.

[0042] a. Data reception: responsible for receiving data sent by each water meter through wireless remote communication.

[0043] b. Protocol analysis: protocol analysis is performed on the received data to convert it into a data format that can be recognized by the center computer.

[0044] c. Data storage: store the parsed water meter data for subsequent query and analysis.

[0045] 5) Central computer: can receive data from LoRa data gateway through network interface or serial port. The central computer is installed with the software system of the remote water meter reading system, including data reception, analysis, display, early warning and other functions.

[0046] a. Data reception and display: the central computer is connected with the LoRa data gateway wireless data reception module through the network, and can receive the water consumption data of numerous water meters in real time, and display them in the form of intuitive charts for the convenience of management personnel to view.

[0047] b. Data analysis and early warning: with powerful data analysis function, it can statistically analyze the water meter data, such as water consumption trend analysis, water consumption anomaly detection, etc. When it finds water consumption anomaly or other abnormal conditions, it will automatically send early warning signals to remind the management personnel to handle in time.

[0048] c. System management: the central computer is also responsible for managing the entire remote meter reading system, including device management, user management, permission management, etc.

Claims

1. A remote water meter reading system, characterized by: The utility model relates to a remote meter reading system, including photoelectric direct reading water meter, LoRa meter reading module, wireless repeater, LoRa data gateway and central computer, photoelectric direct reading water meter is installed on water pipe, the power supply of LoRa meter reading module provides working power supply for LoRa meter reading module and photoelectric direct reading water meter, wireless repeater is separately installed between LoRa meter reading module and LoRa data gateway, LoRa data gateway is connected with LoRa meter reading module through wireless mode, and is connected with central computer through wired mode, photoelectric direct reading water meter has mechanical measurement main part and photoelectric module inside, adopts photoelectric direct reading technology to directly read the mechanical reading of water meter, converts reading into electric signal then, and is exported to LoRa meter reading module through RS485 serial port, LoRa meter reading module is powered by lithium cell or solar panel, is connected with photoelectric direct reading water meter through RS485 bus, adopts LoRa wireless communication technology and wirelessly sends the water meter data read to remote end, wireless repeater is used for enhancing wireless signal, prolongs wireless transmission distance, can be used as one -level relay alone, also can be used as multistage relay in series, LoRa data gateway includes power module, serial module, LoRa module, ethernet module, and LoRa data gateway receives wireless signal of wireless repeater or directly receives LoRa meter reading module through LoRa module first, stores data after analysis, can send data with wired mode through serial module also through ethernet module, provides data source for central computer, central computer is connected with LoRa data gateway through ethernet network, receives the water data of numerous water meters in real time, and shows with the form of intuitive chart, carries out statistical analysis to water meter data, when discovering water consumption anomaly, automatically sends early warning signal, and manages entire remote meter reading system.

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