CN113395346A - Local area network meter reading system based on NB-IOT - Google Patents
Local area network meter reading system based on NB-IOT Download PDFInfo
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- CN113395346A CN113395346A CN202110652401.5A CN202110652401A CN113395346A CN 113395346 A CN113395346 A CN 113395346A CN 202110652401 A CN202110652401 A CN 202110652401A CN 113395346 A CN113395346 A CN 113395346A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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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
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
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Abstract
The invention discloses a local area network meter reading system based on NB-IOT, which comprises a control unit, wherein the control unit comprises an NB-IOT gateway module and a meter reading module, the NB-IOT gateway module comprises an NB-IOT module, a storage unit, a WIFI module and an NB-IOT antenna, the transmission power of the NB-IOT gateway module and the meter reading module is 16db, the transmission power is enhanced, and the condition that signals are good and bad at any time is avoided; and the number of NB-IOT gateway modules in each control unit is one, and the number of meter reading modules is N, so that when meter reading is carried out, only one NB-IOT works, and the rest modules are WIFI signals, so that the problems of multiple NB-IOTs starting at the same time and numerous channel blockage are avoided.
Description
Technical Field
The invention belongs to the field of water meter modules, and particularly relates to a local area network meter reading system based on NB-IOT.
Background
The NB-IOT (Narrow Band Internet of Things, NB-IoT) becomes an important branch of the Internet of everything, is constructed in a cellular network, only consumes about 180kHz bandwidth, and can be directly deployed in a GSM network, a UMTS network or an LTE network so as to reduce the deployment cost and realize smooth upgrade.
The NB-IOT is an emerging technology in the IOT field, supports cellular data connection of low-power consumption equipment in a Wide Area Network (WAN), is also called a low-power consumption wide area network (LPWAN), supports efficient connection of equipment with long standby time and high requirement on network connection, can prolong the service life of a battery of the NB-IOT equipment by at least 10 years, and can provide very comprehensive indoor cellular data connection coverage.
The current NB-IOT meter reading system has a gap from the actual demand in technology and price.
There are 2 major problems in the art:
1. the NB-IOT technology belongs to a narrow band, channels which can be accommodated simultaneously are much smaller than 4G and 5G wide bands, meter reading also has the requirements of daily, monthly fixed point and simultaneous operation, so that the NB-IOT module caused by the contradiction is difficult to live in the network when being started, the time length exceeds 40 seconds, even exceeds a plurality of times of overtime, more than 10 modules live in the network simultaneously according to the actual test of people, and even if the setting is wrong, the success rate is generally about 80%.
2. The problem of weak signals is that NB-IOT signals are generally weaker than 4G and 5G signals due to the problem of a base station, the signal transmission power of most of water meters on the market is 11db, the signals are too weak, part of the water meters are transmitted by Bluetooth, the transmission distance is short, and the installation positions of the water meters are generally far away, such as basements, underground and other closed places, so that the received signals are obviously unstable and are neglected.
In price, because the one-to-one SIM is connected with the base station, each module needs to pay on time, the service life of the general module is 8 years, and the SIM card cost and the module account for quite large cost, which is about more than 50%.
Disclosure of Invention
The invention aims to provide a local area network meter reading system based on NB-IOT, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a local area network system of checking meter based on NB-IOT, includes the control unit, the control unit includes NB-IOT gateway module and the module of checking meter, NB-IOT gateway module includes NB-IOT module, memory cell, WIFI module and NB-IOT antenna, the module of checking meter includes anti-interference unit, valve control unit, acquisition unit, power module, electric ball valve and communication unit, NB-IOT module and NB-IOT antenna are the electricity and connect, and NB-IOT module passes through NB-IOT antenna and receives and send signal, and valve control unit and electric ball valve are the electricity and connect, and valve control unit passes through opening and closure of electric signal control electric ball valve.
Preferably, the NB-IOT gateway module is connected with the meter reading module through a communication unit, the NB-IOT gateway module is connected with the base station through NB-IOT signals, and the communication unit is in WIFI signal communication.
Preferably, there is one NB-IOT gateway module in each control unit, and there are N meter reading modules in each control unit, where a value range of N is 1 to 1200.
Preferably, the transmission power of the NB-IOT gateway module and the meter reading module is 16 db.
Preferably, the voltage of the power supply module is 6V.
Compared with the prior art, the invention has the beneficial effects that: the transmission power of the NB-IOT gateway module and the meter reading module is 16db, so that the transmission power is enhanced, and the condition that the signal is good and bad at any time is avoided; and the number of NB-IOT gateway modules in each control unit is one, and the number of meter reading modules is N, so that when meter reading is carried out, only one NB-IOT works, and the rest modules are WIFI signals, so that the problems of multiple NB-IOTs starting at the same time and numerous channel blockage are avoided.
Drawings
FIG. 1 is a schematic view of a water meter module of the present invention;
FIG. 2 is a schematic diagram of an NB-IOT LAN meter reading system according to the present invention;
Detailed Description
Example 1
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 and 2, the present invention provides the following technical solutions: the utility model provides a local area network system of checking meter based on NB-IOT, including the control unit, the control unit includes NB-IOT gateway module and the module of checking meter, NB-IOT gateway module includes NB-IOT module, the memory cell, WIFI module and NB-IOT antenna, the module of checking meter includes anti-interference unit, valve control unit, the acquisition unit, power module, electric ball valve and communication unit, NB-IOT module and NB-IOT antenna are the electricity and connect, and NB-IOT module receives and send signal through NB-IOT antenna, valve control unit and electric ball valve are the electricity and connect, and valve control unit passes through opening and closing of electric ball valve of signal control.
In order to facilitate transmission of signals between devices, in this embodiment, it is preferable that WIFI signal communication is performed between the NB-IOT gateway module and the meter reading module, and the NB-IOT gateway module is connected to the base station through NB-IOT signals.
In order to reduce cost and make it more economical, in this embodiment, it is preferable that there is one NB-IOT gateway module set in each control unit, and there are N meter reading modules set in each control unit, where a value range of N is 1 to 1200.
In order to avoid the insufficient signal strength, in the embodiment, it is preferable that the transmission power of the NB-IOT gateway module and the meter reading module is 16 db.
In order to stably use the power module, it is preferable in this embodiment that the voltage of the power module is 6V.
Example 2
The utility model provides a local area network system of checking meter based on NB-IOT, including the control unit, the control unit includes NB-IOT gateway module and the module of checking meter, NB-IOT gateway module includes NB-IOT module, the memory cell, WIFI module and NB-IOT antenna, the module of checking meter includes anti-interference unit, valve control unit, the acquisition unit, power module, electric ball valve and communication unit, NB-IOT module and NB-IOT antenna are the electricity and connect, and NB-IOT module receives and send signal through NB-IOT antenna, valve control unit and electric ball valve are the electricity and connect, and valve control unit passes through opening and closing of electric ball valve of signal control.
In order to facilitate transmission of signals between devices, in this embodiment, it is preferable that WIFI signal communication is performed between the NB-IOT gateway module and the meter reading module, and the NB-IOT gateway module is connected to the base station through NB-IOT signals.
In order to reduce cost and make it more economical, in this embodiment, it is preferable that there is one NB-IOT gateway module set in each control unit, and there are N meter reading modules set in each control unit, where a value range of N is 1 to 1200.
In order to avoid the insufficient signal strength, in the embodiment, it is preferable that the transmission power of the NB-IOT gateway module and the meter reading module is 16 db.
In order to stably use the power module, it is preferable in this embodiment that the voltage of the power module is 6V.
Example 3
The utility model provides a local area network system of checking meter based on NB-IOT, including the control unit, the control unit includes NB-IOT gateway module and the module of checking meter, NB-IOT gateway module includes NB-IOT module, the memory cell, WIFI module and NB-IOT antenna, the module of checking meter includes anti-interference unit, valve control unit, the acquisition unit, power module, electric ball valve and communication unit, NB-IOT module and NB-IOT antenna are the electricity and connect, and NB-IOT module receives and send signal through NB-IOT antenna, valve control unit and electric ball valve are the electricity and connect, and valve control unit passes through opening and closing of electric ball valve of signal control.
In order to facilitate transmission of signals between devices, in this embodiment, it is preferable that the preferable NB-IOT gateway module and the meter reading module are connected by a communication unit, the NB-IOT gateway module and the base station are connected by NB-IOT signals, and the communication unit is in WIFI signal communication.
In order to reduce cost and make it more economical, in this embodiment, it is preferable that there is one NB-IOT gateway module set in each control unit, and there are N meter reading modules set in each control unit, where a value range of N is 1 to 1200.
In order to avoid the insufficient signal strength, in the embodiment, it is preferable that the transmission power of the NB-IOT gateway module and the meter reading module is 16 db.
In order to stably use the power module, it is preferable in this embodiment that the voltage of the power module is 6V.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a local area network meter reading system based on NB-IOT, includes the control unit, its characterized in that: the control unit comprises an NB-IOT gateway module and a meter reading module, the NB-IOT gateway module comprises an NB-IOT module, a storage unit, a WIFI module and an NB-IOT antenna, the meter reading module comprises an anti-interference unit, a valve control unit, an acquisition unit, a power supply module, an electric ball valve and a communication unit, the NB-IOT module and the NB-IOT antenna are electrically connected, the NB-IOT module receives and sends signals through the NB-IOT antenna, the valve control unit and the electric ball valve are electrically connected, and the valve control unit controls the opening and closing of the electric ball valve through electric signals.
2. The NB-IOT based local area network meter reading system of claim 1, wherein: WIFI signal communication is carried out between the NB-IOT gateway module and the meter reading module, and the NB-IOT gateway module is connected with the base station through NB-IOT signals.
3. The NB-IOT based local area network meter reading system of claim 1, wherein: the number of the NB-IOT gateway modules arranged in each control unit is one, N meter reading modules arranged in each control unit are provided, and the value range of N is 1-1200.
4. The NB-IOT based local area network meter reading system of claim 1, wherein: and the transmission power of the NB-IOT gateway module and the meter reading module is 16 db.
5. The NB-IOT based local area network meter reading system of claim 1, wherein: the voltage of the power supply module is 6V.
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2021
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