Novel remote meter reading device based on Internet of Things

Abstract

The utility model discloses a novel remote meter reading device based on the Internet of Things. The novel remote meter reading device comprises a shell, an instrument dial plate, a mounting bracket, a sensor module, a data processing module and a power supply module, the installation support is composed of a substrate and magnetic type fixing feet, the substrate fixes the sensor module and the shell through bolts, the magnetic type fixing feet are arranged on the back face of the installation support, and the instrument dial is installed on the shell. The sensor module is composed of a Hall sensor and a photoelectric encoder and is fixedly installed on the side of the rotating shaft of the instrument dial. The data processing module comprises a microcontroller and a signal conditioning circuit, and the power module is connected with the instrument dial, the sensor module and the data processing module. The device is further provided with an anti-disassembly detection module and a communication module. The power supply module comprises a solar panel, a lithium battery, a charging and discharging controller and a power supply management unit. The meter reading efficiency and accuracy are improved, the anti-disassembly function is achieved, remote data transmission can be achieved, and the meter reading device is suitable for various complex environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of internet of things more particularly, the utility model relates to a novel remote meter reading device based on internet of things. BACKGROUND

[0002] At present, the internal structure of many old meter reading devices has been fixedly welded, and it is not convenient to upgrade and modify. If you want to expand or improve the performance on the basis of the original function, you need to externally connect an additional controller. For example, in some old equipment, remote monitoring and data acquisition are realized by adding an external controller, thereby improving the automation level of the overall system.

[0003] Although the existing solution can meet the needs of intelligent upgrading to some extent, there are still some deficiencies. The traditional controller often does not have remote communication capability, and it is difficult to realize real remote monitoring and management. These factors limit the effect and range of intelligent upgrading of traditional instruments and meters, and an intelligent remote meter reading device with remote communication capability is urgently needed. SUMMARY

[0004] The utility model aims at providing a novel remote meter reading device based on internet of things to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A novel remote meter reading device based on internet of things, comprising a shell, a meter dial, a mounting bracket, a sensor module, a data processing module and a power module, the mounting bracket is composed of a base plate and a magnetic fixing foot, the base plate is fixed with the sensor module and the shell through bolts, the magnetic fixing foot is arranged on the back of the mounting bracket, and the meter dial is installed on the shell.

[0007] The sensor module is composed of a hall sensor and an optical encoder, and the sensor module is fixedly installed on the side of the rotating shaft of the meter dial, the hall sensor detects the number of revolutions of the rotating shaft through magnetic induction, and the optical encoder is coaxially connected with the rotating shaft of the meter dial through a grating disc to read the angular displacement.

[0008] The data processing module comprises a microcontroller and a signal conditioning circuit, the input end of the signal conditioning circuit is connected with the output end of the sensor module through a shielded cable, the output end of the signal conditioning circuit is connected with the microcontroller through an SPI interface, and the microcontroller is internally provided with a storage unit.

[0009] The power module is connected with the meter dial, the sensor module and the data processing module.

[0010] As a kind of improvement of the utility model, the inner wall of the shell is further provided with an anti-disassembly detection module, the anti-disassembly detection module is composed of a hall sensor and a magnet, the hall sensor is fixed to the inner side wall of the shell, and the magnet is embedded in the mounting bracket; when the shell is disassembled, the hall sensor is triggered to send an alarm signal to the microcontroller.

[0011] As a kind of improvement of the utility model, the power module comprises a solar panel, a lithium battery and a charge-discharge controller, the solar panel is installed on the top of the outer side of the shell, and the solar panel is connected to the charge-discharge controller through wires; the lithium battery is fixed to the bottom of the shell through a clamping groove.

[0012] As a kind of improvement of the utility model, the power module further comprises a power management unit, the input end of the power management unit is connected to the lithium battery, and the output end of the power management unit is connected to each module through a DC-DC conversion circuit to distribute 3.3V / 5V voltage.

[0013] As a kind of improvement of the utility model, the remote meter reading device further comprises a communication module, the communication module is composed of an NB-IoT module and a PCB antenna, the NB-IoT module is connected to the microcontroller through a UART interface, and the PCB antenna is embedded in the inner side of the top of the shell.

[0014] The novel remote meter reading device based on the Internet of Things has the following beneficial effects:

[0015] (1) The sensor module composed of the hall sensor and the photoelectric encoder can accurately detect the number of rotations and angular displacement of the rotating shaft of the instrument dial, and improve the accuracy of meter reading data. The hall sensor detects the number of rotations of the rotating shaft through magnetic induction, and the photoelectric encoder reads the angular displacement through a grating disc. The two detection methods cooperate with each other to ensure the reliability of data acquisition. Even in a complex electromagnetic interference environment, the device can also work stably, effectively avoiding data acquisition errors.

[0016] (2) The mounting bracket adopts the structural design of a substrate and a magnetic fixing foot, so that the installation and disassembly of the device are more convenient. The magnetic fixing foot can be quickly adsorbed and fixed on the installation position of the instrument dial without the need for complex tools and operations, saving installation time. At the same time, the substrate fixes the sensor module and the shell through bolts, ensuring the stability of the overall structure and facilitating rapid deployment and maintenance in different environments.

[0017] (3) The power module includes a solar panel, a lithium battery, a charge and discharge controller, and a power management unit, realizing the combination of multiple power supply modes. The solar panel can convert solar energy into electrical energy to provide continuous power support for the device, especially suitable for remote areas or places where power supply is inconvenient. The lithium battery is fixed by a clamping groove, facilitating replacement and maintenance. The charge and discharge controller can effectively manage the charging and discharging process of the battery, prolonging the service life of the battery. The power management unit divides appropriate voltages for each module through a DC-DC conversion circuit, ensuring stable power supply of the device in different working states, improving the adaptability and reliability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the utility model;

[0019] Figure 2 is a frame diagram of the utility model.

[0020] LIST OF FIGURES

[0021] 1, shell; 2, instrument dial; 3, base plate; 4, magnetic type fixing foot; 5, sensor module; 6, data processing module; 7, power module; 8, anti-disassembly detection module; 9, communication module; 501, hall sensor; 502, photoelectric encoder; 601, microcontroller; 602, signal conditioning circuit; 701, solar panel; 702, lithium battery; 703, charge and discharge controller; 704, power management unit. DETAILED DESCRIPTION

[0022] The utility model will be further illustrated below in combination with the drawings and specific embodiments, and it should be understood that the following specific embodiments are only used to illustrate the utility model and not used to limit the scope of the utility model. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "in" and "out" refer to the directions towards or away from the geometric center of a particular component.

[0023] In addition, the terms "mounting", "connection" and "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] A new type of remote meter reading device based on Internet of Things, including shell 1, instrument dial 2, mounting bracket, sensor module 5, data processing module 6, power module 7. The mounting bracket is composed of base plate 3 and magnetic type fixing foot 4, the base plate 3 is fixed with sensor module 5 and shell 1 through bolts, the magnetic type fixing foot 4 is arranged on the back of the mounting bracket, and the whole device is adsorbed and fixed on the installation position of the instrument dial 2. The instrument dial 2 is installed on the shell 1, and the shell 1 plays a role in protecting the internal elements.

[0025] The sensor module 5 is composed of a Hall sensor 501 and an optical encoder 502, and is fixedly installed on the shaft side of the instrument dial 2. The Hall sensor 501 detects the number of revolutions of the shaft through magnetic induction. When the shaft rotates, the Hall sensor 501 senses the change of the magnetic field and generates a corresponding electric signal. The optical encoder 502 is coaxially connected with the shaft of the instrument dial 2 through a grating disc. The grating disc rotates with the shaft, and the optical encoder 502 reads the scale change on the grating disc to obtain the angular displacement information, so as to realize accurate measurement of the rotation angle of the shaft.

[0026] The data processing module 6 includes a microcontroller 601 and a signal conditioning circuit 602. The input end of the signal conditioning circuit 602 is connected with the output end of the sensor module 5 through a shielded cable to reduce the influence of external interference on signal transmission. The signal conditioning circuit 602 amplifies, filters and processes the signal output by the sensor module 5 to improve the quality and stability of the signal. The processed signal is transmitted to the microcontroller 601 through an SPI interface. The microcontroller 601 is provided with a storage unit for storing meter reading data and related control programs to realize data processing and management functions.

[0027] The power module 7 connects the instrument dial 2, the sensor module 5 and the data processing module 6 to provide power support for the whole device. The power module 7 includes a solar panel 701, a lithium battery 702, a charge and discharge controller 703 and a power management unit 704. The solar panel 701 is installed on the top of the outer side of the shell 1 and is connected with the charge and discharge controller 703 through wires to convert solar energy into electrical energy and store it in the lithium battery 702. The lithium battery 702 is fixed on the bottom of the shell 1 through a clamping groove, which is convenient for installation and replacement. The charge and discharge controller 703 is responsible for managing the charging and discharging process of the lithium battery 702 to prevent overcharging and overdischarging and prolong the service life of the battery. The input end of the power management unit 704 is connected with the lithium battery 702, and the output end is connected with DC-DC conversion circuit to distribute 3.3V / 5V voltage to each module to ensure that each module works at a suitable voltage, thereby improving the stability and reliability of the device.

[0028] The inner wall of the shell 1 is further provided with an anti-disassembly detection module 8, which is composed of a Hall sensor 501 and a magnet. The Hall sensor 501 is fixed to the inner side wall of the shell 1, and the magnet is embedded in the mounting bracket. When the shell 1 is disassembled, the distance between the magnet and the Hall sensor 501 changes, triggering the Hall sensor 501 to send an alarm signal to the microcontroller 601. After receiving the alarm signal, the microcontroller 601 can send the alarm information to the remote monitoring center through the communication module 9, realizing the anti-disassembly alarm function and improving the safety and reliability of the device.

[0029] The remote meter reading device further comprises a communication module 9, which is composed of an NB-IoT module and a PCB antenna. The NB-IoT module is connected with the microcontroller 601 through a UART interface, realizing wireless transmission of data. The PCB antenna is embedded in the inner side of the top of the shell 1, used for enhancing the receiving and transmitting capacity of signals, ensuring the stability and reliability of data transmission. Through the communication module 9, the meter reading data can be uploaded to the remote server or monitoring center in real time, realizing the remote meter reading and data monitoring functions, and improving the efficiency of meter reading and the convenience of management.

[0030] The working process of the novel remote meter reading device based on the Internet of Things is as follows:

[0031] In work, the Hall sensor 501 and the optical encoder 502 in the sensor module 5 detect the rotation number and angular displacement of the shaft of the instrument dial 2 respectively. The Hall sensor 501 generates an electric signal by sensing the change of the magnetic field, and the optical encoder 502 obtains the angular displacement information by the scale change of the grating disc. After the signals are processed by the signal conditioning circuit 602, they are transmitted to the microcontroller 601 through the SPI interface. The microcontroller 601 processes and stores the data, and uploads the data to the remote monitoring center through the NB-IoT module and the PCB antenna in the communication module 9.

[0032] The power module 7 provides power support for the entire device. The solar panel 701 converts solar energy into electrical energy, which is stored in the lithium battery 702. The charge and discharge controller 703 manages the charging and discharging process of the battery, and the power management unit 704 supplies appropriate voltage to each module. When the shell 1 is disassembled, the anti-disassembly detection module 8 triggers an alarm signal, which is received by the microcontroller 601 and sent to the remote monitoring center through the communication module 9, realizing the anti-disassembly alarm function.

[0033] The drawings only illustrate the technical idea of the utility model, and cannot limit the protection scope of the utility model. For ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the utility model, and these improvements and refinements all fall within the protection scope of the claims of the utility model.

Claims

1. A novel remote meter reading device based on the Internet of Things, characterized in that: The device includes a housing, an instrument panel, a mounting bracket, a sensor module, a data processing module, and a power module. The mounting bracket consists of a base plate and magnetic fixing feet. The base plate fixes the sensor module and the housing with bolts. The magnetic fixing feet are located on the back of the mounting bracket. The instrument panel is mounted on the housing. The sensor module consists of a Hall sensor and a photoelectric encoder. The sensor module is fixedly installed on the side of the rotating shaft of the instrument panel. The Hall sensor detects the number of rotations of the rotating shaft through magnetic induction. The photoelectric encoder is coaxially connected to the rotating shaft of the instrument panel through a grating disk to read the angular displacement. The data processing module includes a microcontroller and a signal conditioning circuit. The input terminal of the signal conditioning circuit is connected to the output terminal of the sensor module via a shielded cable. The output terminal of the signal conditioning circuit is connected to the microcontroller via an SPI interface. The microcontroller has a built-in storage unit. The power module is connected to the instrument panel, sensor module and data processing module.

2. The novel IoT-based remote meter reading device according to claim 1, characterized in that: The inner wall of the housing is also provided with an anti-tamper detection module, which consists of a Hall sensor and a magnet. The Hall sensor is fixed to the inner wall of the housing, and the magnet is embedded in the mounting bracket. When the housing is disassembled, the Hall sensor is triggered to send an alarm signal to the microcontroller.

3. The novel IoT-based remote meter reading device according to claim 1, characterized in that: The power module includes a solar panel, a lithium battery, and a charge / discharge controller. The solar panel is installed on the top of the outer side of the casing and is connected to the charge / discharge controller via wires. The lithium battery is fixed to the bottom of the casing via a slot.

4. The novel IoT-based remote meter reading device according to claim 3, characterized in that: The power module also includes a power management unit. The input terminal of the power management unit is connected to the lithium battery, and the output terminal of the power management unit distributes 3.3V / 5V voltage to each module through a DC-DC conversion circuit.

5. The novel IoT-based remote meter reading device according to claim 1, characterized in that: The remote meter reading device also includes a communication module, which consists of an NB-IoT module and a PCB antenna. The NB-IoT module is connected to the microcontroller via a UART interface, and the PCB antenna is embedded in the inner top of the housing.

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