CN116528263A - Method, device, equipment, gateway and medium for extending coverage of w-mbus wireless communication - Google Patents

Method, device, equipment, gateway and medium for extending coverage of w-mbus wireless communication Download PDF

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Publication number
CN116528263A
CN116528263A CN202310385883.1A CN202310385883A CN116528263A CN 116528263 A CN116528263 A CN 116528263A CN 202310385883 A CN202310385883 A CN 202310385883A CN 116528263 A CN116528263 A CN 116528263A
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China
Prior art keywords
mbus
data
radio frequency
frequency module
relay
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CN202310385883.1A
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Chinese (zh)
Inventor
唐仕斌
陈淑武
苏培玉
王毅龙
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XIAMEN FOUR-FAITH COMMUNICATION TECHNOLOGY CO LTD
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XIAMEN FOUR-FAITH COMMUNICATION TECHNOLOGY CO LTD
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Priority to CN202310385883.1A priority Critical patent/CN116528263A/en
Publication of CN116528263A publication Critical patent/CN116528263A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H04L1/0011—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding applied to payload information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a method, a device, equipment, a gateway and a medium for expanding the coverage range of w-mbus wireless communication, which comprise the following steps: acquiring w-mbus meter data received by a first radio frequency module, wherein the first radio frequency module receives the w-mbus meter data in an FSK demodulation mode; preprocessing the w-mbus meter data to generate relay data, and storing the relay data in a data storage module; and carrying out coding processing on the relay data to generate w-mbus relay data, and transmitting the w-mbus relay data to a gateway through the first radio frequency module. The method aims to solve the problems that the existing w-mbus technology is limited in transmission distance and weak in anti-interference capability, and link overhead and relay arrangement cost are increased to a certain extent under the condition that data acquisition and forwarding are carried out by adopting multi-hop relay aiming at a meter with a longer distance.

Description

Method, device, equipment, gateway and medium for extending coverage of w-mbus wireless communication
Technical Field
The invention relates to the technical field of low-power-consumption wide area networks, in particular to a method, a device, equipment, a gateway and a medium for expanding a coverage area of w-mbus wireless communication.
Background
The wireless M-Bus standard (EN 13757-4:2005 and 2012) is used to define radio frequency communication links between water, gas, heat and electricity meters and data collection devices. The standard is currently widely accepted by the european market for intelligent metering or advanced meter reading infrastructure (AMI) applications.
Wherein the availability of low cost radio modules makes it possible to read out table data using radio communication. Many meters are battery driven and have very stringent power budget and regulatory requirements that limit the transmit power level and thus the useful distance between the transmitter and receiver. The use of reinforced concrete, conductive surface coatings, and placement of meters underground, such as in pits and basements of buildings, exacerbates the problem of direct communication between the data collection unit and the meters; this limits the useful size of the radio network, and by letting the relay forward some node data, the effective size of the network can be increased, unless relay or forwarding is used, which makes the radio based network a more cost effective solution.
In the existing standard w-mbus technology on the market, even if relay forwarding is added, as the standard w-mbus technology uses FSK modulation, the data receiving sensitivity only reaches about-100 dB, the transmission distance is limited, and the anti-interference capability is weak; and in the case of adopting multi-hop relay to perform data acquisition and forwarding aiming at a meter at a longer distance, link overhead and relay arrangement cost are increased to a certain extent.
In view of this, the present application is presented.
Disclosure of Invention
In view of the above, the present invention aims to provide a method, an apparatus, a device, a gateway and a medium for extending a coverage area of w-mbus wireless communication, which can effectively solve the problems of limited transmission distance and weak anti-interference capability of the w-mbus technology in the prior art, and increase link overhead and relay arrangement cost to a certain extent when data acquisition and forwarding are performed by adopting multi-hop relay for a meter with a longer distance.
The invention discloses a w-mbus wireless communication coverage expansion method, which comprises the following steps:
acquiring w-mbus meter data received by a first radio frequency module, wherein the first radio frequency module receives the w-mbus meter data in an FSK demodulation mode;
preprocessing the w-mbus meter data to generate relay data, and storing the relay data in a data storage module;
and carrying out coding processing on the relay data to generate w-mbus relay data, and transmitting the w-mbus relay data to a gateway through the first radio frequency module.
Preferably, the w-mbus meter data is preprocessed to generate relay data, specifically:
performing FSK demodulation processing on the w-mbus meter data to generate demodulation data;
performing w-mbus information decoding processing on the demodulated data to generate decoded data;
and carrying out relay information processing on the decoded data to generate relay data.
Preferably, the relay data is coded to generate w-mbus relay data, and the w-mbus relay data is transmitted to a gateway through the first radio frequency module, specifically:
performing w-mbus information coding processing on the relay data to generate coded data;
modulating the coded data to generate w-mbus relay data, wherein the modulating comprises spread spectrum modulation;
and transmitting the w-mbus relay data to a gateway through the first radio frequency module.
The invention also discloses a w-mbus wireless communication coverage expansion method, which comprises the following steps:
a first receiving channel of a second radio frequency module is opened, and whether a preamble of w-mbus meter data transmitted by the first radio frequency module is detected is judged, wherein the first receiving channel is used for receiving traditional wmbus meter data or w-mbus relay data adopting an FSK modulation mode;
if yes, the w-mbus relay data are received through the second radio frequency module;
if not, closing the first receiving channel of the second radio frequency module, and opening the second receiving channel of the second radio frequency module.
Preferably, after opening the second receiving channel of the second radio frequency module, the method further includes:
judging whether a preamble of w-mbus relay data transmitted by the first radio frequency module is detected, wherein the second receiving channel is used for receiving the w-mbus relay data in a spread spectrum modulation mode;
if yes, the w-mbus relay data are received through the second radio frequency module;
if not, closing the second receiving channel of the second radio frequency module, and re-opening the second receiving channel of the first radio frequency module to judge.
The invention also discloses a device for expanding the coverage range of the w-mbus wireless communication, which comprises:
the meter data acquisition unit is used for acquiring the w-mbus meter data received by the first radio frequency module, wherein the first radio frequency module receives the w-mbus meter data in an FSK demodulation mode;
the meter data processing unit is used for preprocessing the w-mbus meter data, generating relay data and storing the relay data in the data storage module;
and the meter data transmission unit is used for carrying out coding processing on the relay data, generating w-mbus relay data and transmitting the w-mbus relay data to a gateway through the first radio frequency module.
The invention also discloses a device for expanding the coverage range of the w-mbus wireless communication, which comprises:
the meter data judging unit is used for opening a first receiving channel of the second radio frequency module and judging whether a preamble of w-mbus meter data transmitted by the first radio frequency module is detected, wherein the first receiving channel is used for receiving traditional wmbus meter data or w-mbus relay data adopting an FSK modulation mode;
the meter data receiving unit is used for receiving the w-mbus relay data through the second radio frequency module;
and the receiving channel switching unit is used for closing the first receiving channel of the second radio frequency module and opening the second receiving channel of the second radio frequency module.
The invention also discloses a w-mbus wireless communication coverage extension device, which comprises a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the w-mbus wireless communication coverage extension method is realized when the processor executes the computer program.
The invention also discloses a gateway, which comprises a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the w-mbus wireless communication coverage expansion method is realized when the processor executes the computer program.
The invention also discloses a readable storage medium, which stores a computer program, the computer program can be executed by a processor of a device where the storage medium is located, so as to implement the w-mbus wireless communication coverage extension method according to any one of the above.
In summary, in the method, device, equipment, gateway and medium for expanding the coverage of w-mbus wireless communication provided by the embodiment, in the operation process, when data is transmitted in a relay mode, the modulation mode is changed into spread spectrum modulation, and technologies such as digital spread spectrum, digital signal processing and the like are fused, so that the relay data can transmit the data farther without increasing the relay power consumption, the gateway receiving sensitivity is higher, and the network connection reliability can be ensured. Therefore, the problems that the transmission distance of the w-mbus technology in the prior art is limited, the anti-interference capability is weak, and the link cost and the relay arrangement cost are increased to a certain extent when the data acquisition and forwarding are carried out by adopting multi-hop relay aiming at a meter at a longer distance are solved.
Drawings
Fig. 1 is a schematic flow chart of a method for expanding a coverage area of w-mbus wireless communication according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a coverage extension method of w-mbus wireless communication according to an embodiment of the present invention.
Fig. 3 is a schematic frame structure of a w-mbus wireless communication coverage extension method according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a relay flow of a coverage extension method of w-mbus wireless communication according to an embodiment of the present invention.
Fig. 5 is a second flowchart of a method for expanding a coverage area of w-mbus wireless communication according to an embodiment of the present invention.
Fig. 6 is a schematic gateway flow chart of a w-mbus wireless communication coverage expansion method according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of a first module of a w-mbus wireless communication coverage extension device according to an embodiment of the present invention.
Fig. 8 is a second block diagram of a w-mbus coverage extension device for wireless communication according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The invention discloses a method, a device, equipment, a gateway and a medium for expanding the coverage of w-mbus wireless communication, which at least solve the defects in the prior art to a certain extent.
Referring to fig. 1, a first embodiment of the present invention provides a w-mbus wireless communication coverage extension method, which may be executed by a w-mbus wireless communication coverage extension device (hereinafter referred to as a first extension device), and in particular, executed by one or more processors in the first extension device, to implement the following steps:
s101, acquiring w-mbus meter data received by a first radio frequency module, wherein the first radio frequency module receives the w-mbus meter data in an FSK demodulation mode;
in this embodiment, the first extension device may be a user terminal device (such as a smart phone, an intelligent computer, or other intelligent devices), and the user terminal device may establish a communication connection with a gateway of the cloud to implement data interaction.
In the existing standard w-mbus technology on the market, even if relay forwarding is added, as the standard w-mbus technology uses FSK modulation, the data receiving sensitivity only reaches about-100 dB, the transmission distance is limited, and the anti-interference capability is weak; and in the case of adopting multi-hop relay to perform data acquisition and forwarding aiming at a meter at a longer distance, link overhead and relay arrangement cost are increased to a certain extent.
Referring to fig. 2 to fig. 4, specifically, in this embodiment, a system using the w-mbus wireless communication coverage extension method includes 3 components, a meter a-E, a relay K-L, and a gateway Z, where the relay K-L is the first extension device; the first extension device comprises an SX1262 radio frequency chip, a data storage module, a battery module, a low-power consumption module and an MCU processor, wherein the SX1262 radio frequency chip and the MCU perform data transmission through an SPI protocol. When the w-mbus meter A-E is in the C1 working mode, the bandwidth is 200k, the speed is 100kb/s, the preamble is 32 bits, and the A-E meter encodes application data according to the w-mbus protocol specification, wherein different working modes use different encoding rules; the first radio frequency module receives the encoded w-mbus meter data by adopting an FSK demodulation mode.
S102, preprocessing the w-mbus meter data to generate relay data, and storing the relay data in a data storage module;
specifically, step S102 includes: performing FSK demodulation processing on the w-mbus meter data to generate demodulation data;
performing w-mbus information decoding processing on the demodulated data to generate decoded data;
and carrying out relay information processing on the decoded data to generate relay data.
S103, coding the relay data to generate w-mbus relay data, and transmitting the w-mbus relay data to a gateway through the first radio frequency module.
Specifically, step S103 includes: performing w-mbus information coding processing on the relay data to generate coded data;
modulating the coded data to generate w-mbus relay data, wherein the modulating comprises spread spectrum modulation;
and transmitting the w-mbus relay data to a gateway through the first radio frequency module.
Specifically, in this embodiment, the first radio frequency module in the relay of the first extension device receives the encoded w-mbus meter data in an FSK demodulation manner, and when the data reception is completed, the relay decodes w-mbus information, processes the decoded original data, and stores the processed original data in a cache; then, the relay randomly delays 200-2000 milliseconds, and carries out w-mbus coding on the data in the buffer memory; finally, when data is transmitted, the FSK needs 8-10dB of signal power on the bottom noise to be modulated normally; the suppression capability of spread spectrum modulation on co-channel GMSK interference signals reaches 20dB, so that the method has strong anti-interference performance; therefore, the modulation mode of the first radio frequency module may be spread spectrum modulation, the bandwidth is set to 125K, the spreading factor is set to 12, and the preamble is 32 bits, where the modulation mode of the first radio frequency module may also be FSK modulation, and the modulation mode adopted may be adjusted according to the actual situation.
In this embodiment, when the spread spectrum relay L receives data, an FSK modulation scheme is used, and when data is transmitted, a spread spectrum modulation scheme is used; meanwhile, the relay L uses a low power consumption mode. The relay L is not limited to the meter data transfer in the C1 operation mode, but is also applicable to meter data transfer in operation modes such as S1, S2, T1, T2, and C2. The relay L forwards the w-mbus meter data to the gateway through the technology of changing the radio frequency modulation mode, the radio frequency bandwidth, the spread spectrum factor and the like, so that the data transmission distance is increased, and the data anti-interference performance is improved.
Referring to fig. 5 to 6, a second embodiment of the present invention provides a w-mbus wireless communication coverage extension method, which may be executed by a wireless communication coverage extension device (hereinafter referred to as a second extension device), and in particular, executed by one or more processors in the second extension device, to implement the following steps:
s201, a first receiving channel of a second radio frequency module is opened, and whether a preamble of w-mbus meter data transmitted by the first radio frequency module is detected is judged, wherein the first receiving channel is used for receiving traditional wmbus meter data or w-mbus relay data adopting an FSK modulation mode;
in this embodiment, the second extension device may be a gateway located in a cloud end, where the gateway in the cloud end may establish communication connection with a user terminal device (such as a smart phone, a smart computer, or other smart devices) to implement data interaction.
In particular, in this embodiment, the gateway may store parameters for performing communication, and the user terminal may switch a receiving channel corresponding to the preamble by transmitting the preamble of the meter data to the gateway, so as to receive the meter data transmitted by the user terminal.
S202, if yes, receiving the w-mbus relay data through the second radio frequency module;
and S203, if not, closing the first receiving channel of the second radio frequency module, and opening the second receiving channel of the second radio frequency module.
In one possible embodiment of the present invention, after opening the second receiving channel of the second radio frequency module, the method further includes:
s204, judging whether a preamble of the w-mbus relay data transmitted by the first radio frequency module is detected, wherein the second receiving channel is used for receiving the w-mbus relay data in a spread spectrum modulation mode;
s205, if yes, receiving the w-mbus relay data through the second radio frequency module;
s206, if not, closing the second receiving channel of the second radio frequency module, and re-opening the second receiving channel of the first radio frequency module to judge.
Specifically, in this embodiment, the second receiving channel is configured to receive w-mbus relay data that adopts a spread spectrum modulation mode, that is, modified relay data. The system using the w-mbus wireless communication coverage expansion method comprises 3 components, namely meters A-E, relays K-L and a gateway Z, wherein the gateway Z is the second expansion device; the second extension device comprises an SX1262 radio frequency chip, a data storage module, a battery module, a low-power consumption module and an MCU processor, wherein the SX1262 radio frequency chip and the MCU perform data transmission through an SPI protocol. When the method is used, the gateway of the second expansion device opens a 16-bit FSK receiving window, namely the first receiving channel, and if the preamble is detected, FSK meter data can be received; if the FSK receiving window does not detect the lead code, the 8-bit spread spectrum receiving window is opened, namely the second receiving channel, if the lead code is detected, the meter data forwarded by the spread spectrum relay can be received, and if the lead code is not detected by the spread spectrum receiving window, the FSK receiving window is repeatedly opened for receiving and detecting.
In this embodiment, when the gateway Z, that is, the second extension device monitors the relay L spread spectrum preamble of the first extension device, the receiving channel modulation mode of the gateway Z is set to spread spectrum modulation, the communication parameter is consistent with the relay L transmission parameter, and receives relay data, where the gateway receiving sensitivity may reach-137 dB, and the receiving data distance may reach 3 km. When the gateway Z monitors the relay K FSK preamble of the first extension equipment, the receiving channel modulation mode of the gateway is set to be FSK modulation, relay K meter data are received, at the moment, the receiving sensitivity of the gateway can reach-104 dB, and the receiving distance can reach 1 km.
In short, the radio frequency module of the gateway Z, that is, the second radio frequency module, uses two receiving channels, and the two receiving channels use different modulation modes and communication parameters. The FSK modulation mode can receive original w-mbus relay or w-mbus meter data, and the spread spectrum modulation mode can receive improved spread spectrum relay data; the radio frequency module is in communication connection with the w-mbus gateway, and the w-mbus gateway is electrically connected with the radio frequency chip communication chip. The gateway Z adopts a time division multiplexing mode to poll and use two receiving channels, so that the reliability of network connection is ensured.
In summary, in the prior art, when the relay K of the original w-mbus method transmits and receives, the radio frequency uses FSK modulation, which results in the disadvantages of limited data transmission distance and weak anti-interference of the original w-mbus method. The w-mbus wireless communication coverage expansion method adopts a spread spectrum modulation mode when the relay L transmits data, obviously increases the communication distance under the same power consumption, and has good Doppler frequency shift resistance; and the gateway Z of the w-mbus wireless communication coverage expansion method adopts a time division multiplexing technology to use two receiving channels, and the system applicability is improved. In short, the w-mbus wireless communication coverage expansion method has the characteristics of low cost, low power consumption, long transmission distance, strong anti-interference capability and the like; the method not only solves the contradiction problem of w-mbus power consumption and transmission difficult coverage distance in the prior art, but also improves the gateway receiving sensitivity, anti-interference performance and reduces the arrangement cost of the relay.
Referring to fig. 7, a third embodiment of the present invention provides a coverage extension apparatus for w-mbus wireless communication, including:
a meter data obtaining unit 101, configured to obtain w-mbus meter data received by a first radio frequency module, where the first radio frequency module receives the w-mbus meter data by adopting an FSK demodulation manner;
a meter data processing unit 102, configured to pre-process the w-mbus meter data, generate relay data, and store the relay data in a data storage module;
and the meter data transfer unit 103 is configured to perform encoding processing on the relay data, generate w-mbus relay data, and transfer the w-mbus relay data to a gateway through the first radio frequency module.
Referring to fig. 8, a fourth embodiment of the present invention provides a coverage extension apparatus for w-mbus wireless communication, including:
the meter data judging unit 201 is configured to open a first receiving channel of a second radio frequency module, and judge whether a preamble of w-mbus meter data transmitted by the first radio frequency module is detected, where the first receiving channel is used to receive traditional wmbus meter data or w-mbus relay data adopting an FSK modulation mode;
a meter data receiving unit 202, configured to receive the w-mbus relay data through the second radio frequency module;
and the receiving channel switching unit 203 is configured to close the first receiving channel of the second radio frequency module and open the second receiving channel of the second radio frequency module.
A fifth embodiment of the present invention provides a w-mbus wireless communication coverage extension device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor executes the computer program to implement the w-mbus wireless communication coverage extension method according to any one of the above.
A sixth embodiment of the present invention provides a gateway, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor implements the w-mbus wireless communication coverage extension method according to any one of the above.
A seventh embodiment of the present invention provides a readable storage medium storing a computer program, where the computer program can be executed by a processor of a device in which the storage medium is located, to implement the w-mbus wireless communication coverage extension method according to any one of the foregoing.
Illustratively, the computer programs described in the fifth, sixth and seventh embodiments of the present invention may be divided into one or more modules, which are stored in the memory and executed by the processor to complete the present invention. The one or more modules may be a series of computer program instruction segments capable of performing specific functions for describing the execution of the computer program in the w-mbus wireless communication coverage extension device. For example, the devices described in the third and fourth embodiments of the present invention.
The processor may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The general processor may be a microprocessor or the processor may be any conventional processor, etc., where the processor is a control center of the w-mbus wireless communication coverage extension method, and various interfaces and lines are used to connect various parts of the implementation of the w-mbus wireless communication coverage extension method.
The memory may be used to store the computer program and/or module, and the processor may implement various functions of the w-mbus wireless communication coverage extension method by running or executing the computer program and/or module stored in the memory and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, a text conversion function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, text message data, etc.) created according to the use of the cellular phone, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid-state storage device.
Wherein the modules may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as a stand alone product. Based on this understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and the computer program may implement the steps of each method embodiment described above when executed by a processor. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.
It should be noted that the above-described apparatus embodiments are merely illustrative, and the units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, in the drawings of the embodiment of the device provided by the invention, the connection relation between the modules represents that the modules have communication connection, and can be specifically implemented as one or more communication buses or signal lines. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention.

Claims (10)

1.w-mbus wireless communication coverage expansion method is characterized by comprising the following steps:
acquiring w-mbus meter data received by a first radio frequency module, wherein the first radio frequency module receives the w-mbus meter data in an FSK demodulation mode;
preprocessing the w-mbus meter data to generate relay data, and storing the relay data in a data storage module;
and carrying out coding processing on the relay data to generate w-mbus relay data, and transmitting the w-mbus relay data to a gateway through the first radio frequency module.
2. The w-mbus wireless communication coverage extension method according to claim 1, wherein preprocessing is performed on the w-mbus meter data to generate relay data, specifically:
performing FSK demodulation processing on the w-mbus meter data to generate demodulation data;
performing w-mbus information decoding processing on the demodulated data to generate decoded data;
and carrying out relay information processing on the decoded data to generate relay data.
3. The method for extending the coverage area of w-mbus wireless communication according to claim 1, wherein the encoding process is performed on the relay data to generate w-mbus relay data, and the w-mbus relay data is transferred to a gateway through the first radio frequency module, specifically:
performing w-mbus information coding processing on the relay data to generate coded data;
modulating the coded data to generate w-mbus relay data, wherein the modulating comprises spread spectrum modulation;
and transmitting the w-mbus relay data to a gateway through the first radio frequency module.
4.w-mbus wireless communication coverage expansion method is characterized by comprising the following steps:
a first receiving channel of a second radio frequency module is opened, and whether a preamble of w-mbus meter data transmitted by the first radio frequency module is detected is judged, wherein the first receiving channel is used for receiving traditional wmbus meter data or w-mbus relay data adopting an FSK modulation mode;
if yes, the w-mbus relay data are received through the second radio frequency module;
if not, closing the first receiving channel of the second radio frequency module, and opening the second receiving channel of the second radio frequency module.
5. The method for extending coverage of w-mbus wireless communication of claim 4, further comprising, after opening the second receiving channel of the second radio frequency module:
judging whether a preamble of w-mbus relay data transmitted by the first radio frequency module is detected, wherein the second receiving channel is used for receiving the w-mbus relay data in a spread spectrum modulation mode;
if yes, the w-mbus relay data are received through the second radio frequency module;
if not, closing the second receiving channel of the second radio frequency module, and re-opening the second receiving channel of the first radio frequency module to judge.
6.w-mbus wireless communication coverage extension device, characterized by comprising:
the meter data acquisition unit is used for acquiring the w-mbus meter data received by the first radio frequency module, wherein the first radio frequency module receives the w-mbus meter data in an FSK demodulation mode;
the meter data processing unit is used for preprocessing the w-mbus meter data, generating relay data and storing the relay data in the data storage module;
and the meter data transmission unit is used for carrying out coding processing on the relay data, generating w-mbus relay data and transmitting the w-mbus relay data to a gateway through the first radio frequency module.
7.w-mbus wireless communication coverage extension device, characterized by comprising:
a first receiving channel of a second radio frequency module is opened, and whether a preamble of w-mbus meter data transmitted by the first radio frequency module is detected is judged, wherein the first receiving channel is used for receiving traditional wmbus meter data or w-mbus relay data adopting an FSK modulation mode;
the meter data receiving unit is used for receiving the w-mbus relay data through the second radio frequency module;
and the receiving channel switching unit is used for closing the first receiving channel of the second radio frequency module and opening the second receiving channel of the second radio frequency module.
8.w-mbus wireless communication coverage extension device, characterized by comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the w-mbus wireless communication coverage extension method according to any one of claims 1 to 3 when executing the computer program.
9. Gateway comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the w-mbus wireless communication coverage extension method according to any one of claims 4 to 5 when executing the computer program.
10. A readable storage medium, storing a computer program executable by a processor of a device in which the storage medium is located, for implementing the w-mbus wireless communication coverage extension method according to any one of claims 1 to 5.
CN202310385883.1A 2023-04-11 2023-04-11 Method, device, equipment, gateway and medium for extending coverage of w-mbus wireless communication Pending CN116528263A (en)

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CN202310385883.1A CN116528263A (en) 2023-04-11 2023-04-11 Method, device, equipment, gateway and medium for extending coverage of w-mbus wireless communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310385883.1A CN116528263A (en) 2023-04-11 2023-04-11 Method, device, equipment, gateway and medium for extending coverage of w-mbus wireless communication

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CN116528263A true CN116528263A (en) 2023-08-01

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