CN112565351B - Mobile meter reading method based on WiSUN protocol - Google Patents
Mobile meter reading method based on WiSUN protocol Download PDFInfo
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- CN112565351B CN112565351B CN202011301135.3A CN202011301135A CN112565351B CN 112565351 B CN112565351 B CN 112565351B CN 202011301135 A CN202011301135 A CN 202011301135A CN 112565351 B CN112565351 B CN 112565351B
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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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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- 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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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/30—Smart metering, e.g. specially adapted for remote reading
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Abstract
A mobile meter reading method based on a WiSUN protocol is characterized in that a handheld meter reading device is adopted to read an electric meter in a network, the handheld meter reading device and the electric meter are provided with WiSUN communication modules, and the meter reading method comprises the following steps: searching the ammeter in the signal coverage range of the handheld meter reading equipment, and acquiring and storing the communication address of the searched ammeter; establishing point-to-point communication connection between the handheld meter reading equipment and an ammeter to be read; the handheld meter reading equipment and the electric meter perform data interaction in a point-to-point communication mode to realize meter reading; after the meter reading is finished, the point-to-point communication connection is disconnected between the handheld meter reading equipment and the electric meters completing the meter reading, reading of the next electric meter is continued until all the electric meters complete reading, and the meter reading is finished. According to the invention, the related information of the electric meters deployed in the signal coverage range of the handheld meter reading equipment is obtained by quickly searching the meters, and then point-to-point communication connection is established with each electric meter and communication meter reading is carried out, networking is not required, and the meter reading efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of communication of the Internet of things, and particularly relates to a mobile meter reading method based on a Wi-SUN protocol.
Background
The Wi-SUN (Wireless Smart Ubiquitous Network) technology is a transmission technology based on international standards such as IEEE802.15.4g and IPv6, has the characteristics of remote communication, large-scale networking, high safety and expandability and the like, and can be applied to the field of large-scale Internet of things such as intelligent electric meters or other public communication devices.
When the Wi-SUN technology is applied to intelligent meter reading, the Wi-SUN FAN specification is generally adopted, and a FAN network is a master-slave architecture, that is, each sub-network is provided with a master Node (Border Router) and a plurality of sub-nodes (routers or Leaf nodes). And each child node registers to the main node for network access, and finally a tree network with the main node as a root node is formed. The Wi-SUN FAN network is particularly suitable for being applied to an intelligent meter reading system with fixed position deployment due to the characteristics, and certain defects exist when a handheld meter reading device is used for mobile meter reading. For example, when a handheld meter reading device is used for mobile meter reading, if the handheld meter reading device is added into a network as the identity of a child node, the meter reading is carried out by transferring a message through a main node, firstly, the handheld meter reading device needs a relatively long time to access the network, which affects the meter reading efficiency, secondly, the handheld meter reading device can cause the network topology to change when moving, a parent node may need to be reselected to access the network, and even the network topology vibrates in severe cases; if the electric meter node is not connected to the network or the network is unstable, the meter reading success rate is influenced. If the handheld meter reading equipment reads the meter by the identity of the main node, a long time is consumed for networking when the number of the nodes in the network is large, and if the number of the nodes in the network is more than 100, the networking of the network may take tens of minutes, so that the mobility of the handheld meter reading equipment is greatly influenced; and when the handheld meter reading equipment moves, the network topology can change continuously, and the stable state can not be reached, thereby influencing the reading success rate.
Disclosure of Invention
The invention aims to provide a mobile meter reading method based on a Wi-SUN protocol, which can realize quick meter reading.
In order to achieve the purpose, the invention adopts the following technical solutions:
a mobile meter reading method based on a WiSUN protocol adopts handheld meter reading equipment to read an electric meter in a network, wherein the handheld meter reading equipment and the electric meter are respectively provided with a WiSUN communication module, and the meter reading method comprises the following steps:
s1, searching an ammeter; the handheld meter reading equipment searches the electric meters in the signal coverage range of the handheld meter reading equipment, and obtains and stores the communication addresses of the searched electric meters;
s2, establishing connection; establishing point-to-point communication connection between the handheld meter reading equipment and an ammeter to be read;
s3, communication meter reading; the handheld meter reading equipment and the ammeter perform data interaction in a point-to-point communication mode to realize meter reading;
s4, disconnecting the connection; and after the meter reading is finished, the handheld meter reading equipment is disconnected from the electricity meters completing the meter reading in point-to-point communication connection, the reading of the next electricity meter is continued until all the electricity meters complete the reading, and the meter reading is finished.
Further, in step S1, when the handheld meter reading device searches for the electric meter, a PA frame is broadcast and transmitted on all available channels, the PA frame includes specific field information for indicating that the PA frame is used for searching for the handheld meter reading device, the electric meter broadcasts and transmits the PAs frame on all available channels after receiving the PA frame transmitted by the handheld meter, and the handheld meter reading device obtains and stores information of the electric meter after receiving the PAs frame transmitted by the electric meter.
Further, the specific field information is contained in a reserved field of the PA frame or a VH-IE field carried by the PA frame.
Further, in step S2, the handheld meter reading device sends an application for establishing the point-to-point communication connection to the ammeter to be read, and the ammeter replies a data frame containing the appointment information for establishing the point-to-point communication connection to the handheld meter reading device after receiving the application, so as to indicate that the point-to-point communication connection is successfully established.
Furthermore, the handheld meter reading equipment sends a VP-IE-containing data frame to the electric meter to be read, point-to-point communication connection is applied to be established with the electric meter, the VP-IE-containing information field contains appointed information for applying for establishing the point-to-point communication connection to the electric meter, the electric meter receives the VP-IE-containing data frame and analyzes the information field in the VP-IE, and then the VP-IE-containing data frame is replied to the handheld meter reading equipment to indicate that the point-to-point communication connection is successfully established.
Furthermore, the handheld meter reading device and the ammeter establish point-to-point communication in a frequency hopping mode, and/or the handheld meter reading device and the ammeter perform point-to-point communication in a frequency hopping mode.
Further, in step S3, the interactive data content between the handheld meter reading device and the electricity meter includes meter reading, parameter query and parameter configuration.
Further, in step S3, the packet encapsulation format of the interactive data between the handheld meter reading device and the electric meter is a Wi-SUN protocol MAC layer data frame format or a UDP frame format or an ICMP frame format.
Further, in step S4, the handheld meter reading device unicast-transmits a data frame containing VP-IE to the electric meter completing meter reading, where the VP-IE contains convention information for indicating disconnection, the electric meter replies the data frame containing VP-IE to the handheld meter reading device after receiving and analyzing the data frame, indicates that the current communication connection is disconnected and does not respond to the point-to-point communication message, and after receiving the data frame replied by the electric meter, the handheld meter reading device releases resources occupied by the current communication connection and waits for the next round of meter reading operation.
According to the technical scheme, the mobile meter reading method is based on a Wi-SUN communication protocol, the handheld meter reading equipment and the electric meters adopt the Wi-SUN communication protocol, the handheld meter reading equipment can quickly sense the electric meters deployed around, unicast point-to-point communication connection is directly established between the handheld meter reading equipment and the electric meters to be read, then meter reading or other upper-layer service processes are completed through message interaction in a point-to-point communication mode, after the electric meters are read, the handheld meter reading equipment and the electric meter communication module finish unicast point-to-point communication connection, the electric meter communication module recovers a networking communication mode, and the handset enters the next round of link establishment meter reading process or meter reading is finished. The mobile meter reading method can quickly establish communication connection and realize communication interaction through a point-to-point communication mode without networking, and realizes reading of a single electric meter.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
In order to make the aforementioned and other objects, features and advantages of the invention more apparent, reference is made to the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings.
The mobile meter reading method is based on a Wi-SUN communication technology, the handheld meter reading equipment and the electric meter end are both provided with a Wi-SUN communication module, and communication interaction can be carried out through the Wi-SUN communication module, as shown in figure 1, the mobile meter reading method comprises the following steps:
s1, searching an ammeter; the method comprises the steps that a handheld meter reading device searches electric meters deployed in a wireless signal coverage range of the handheld meter reading device, obtains information such as communication addresses and frequency hopping channel plans of the electric meters, and stores the searched information of all the electric meters for use in subsequent meter reading;
when searching the ammeter, the handheld meter reading equipment broadcasts and sends PA frames (broadcast frames) on all available channels, the ammeter receives the PA frames sent by the handheld equipment through a Wi-SUN communication module of the ammeter, and broadcasts and sends PAS frames (broadcast request frames) on all available channels, the PA frames and the PAS frames are different types of frames in a Wi-SUN protocol standard, and the handheld meter reading equipment can obtain relevant information of the ammeter after receiving the PAS frames sent by the ammeter.
In one embodiment of the invention, when searching for meters, the handheld meter reading device broadcasts and sends a PA frame by using the MLME-WS-ASYNC-FRME mechanism, that is, all channels specified in the ChannelList are traversed, and the PA frame is sent on each channel. The PA frame sent by the handheld meter reading device includes, in addition to field information such as conventional UTT-IE, US-IE, PAN-IE, NETNAME-IE, and the like, information for indicating a frame type of the frame, a time slot interval of a node sending the frame, a channel plan, a channel function, clock accuracy, a routing method, a path cost, a network name, and the like, specific field information for indicating that the PA frame is used for searching the table of the handheld meter reading device is also included, and the specific field information may be filled in a reserved field of the PA frame (for example, bit 7 of a frame control field of the PA frame is a reserved bit, and 1 of the position may be set to represent the PA frame as a table search for the handheld meter reading device), or a VH-IE field is carried in the PA frame, and a certain frame format is set in the VH-IE field to represent the table search for the handheld meter reading device by the PA frame.
After all the electric meters in the signal coverage range of the handheld meter reading equipment receive the PA frame containing information for quickly searching the meters, the MLME-WS-ASYNC-FRME mechanism is also adopted to send the PAS frame. After receiving PAS frames sent by the electric meters, the handheld meter reading equipment can obtain relevant information of the Wi-SUN communication module at the electric meter end, wherein the information comprises MAC addresses, time slot intervals, channel plans, channel functions, clock accuracy and the like, and the handheld meter reading equipment records and stores the received relevant information of each electric meter for further communication meter reading.
S2, establishing connection; establishing point-to-point communication connection between the handheld meter reading equipment and the ammeter;
the method comprises the steps that a handheld meter reading device sends a VP-IE-containing data frame to a designated ammeter (ammeter to be read), point-to-point communication connection is applied to be established with the ammeter, the VP-IE-containing information field contains appointed information for applying for establishing the point-to-point communication connection to the ammeter, the ammeter receives the VP-IE-containing data frame for applying for establishing the point-to-point communication connection and analyzes the information field in the VP-IE, and then the VP-IE-containing data frame is replied to the handheld meter reading device, and point-to-point communication connection establishment is indicated to be successful.
In the meter searching process of the step S1, the handheld meter reading device and the electric meter perform information interaction, and both obtain information such as MAC addresses (communication addresses) and frequency hopping plans of both parties, so that in order to improve transmission efficiency and reduce wireless channel conflicts, the handheld meter reading device and the electric meter can establish point-to-point communication in a frequency hopping manner.
S3, communication meter reading; after the point-to-point communication connection between the handheld meter reading equipment and the electric meter is established, the handheld meter reading equipment and the electric meter can complete meter reading communication through point-to-point data frame interaction.
When the meter is read, the hand-held meter reading equipment and the ammeter can adopt a frequency hopping mode for communication interaction. The load of communication interaction comprises meter reading, parameter query, parameter configuration and the like. The message encapsulation format can be a Wi-SUN protocol MAC layer data frame format, and can also be a frame format of further encapsulated UDP frames, ICMP frames and the like.
S4, disconnecting the connection; after the meter reading is finished, the point-to-point communication link is disconnected between the handheld meter reading equipment and the electric meters completing the meter reading, so that the handheld meter reading equipment can continue to read the next electric meter until all the electric meters finish reading, and the meter reading is finished.
As a specific implementation mode of the invention, the hand-held meter reading equipment unicast-transmits a VP-IE-containing data frame to a designated electric meter, and instructs to disconnect point-to-point communication connection of the two parties. The VP-IE contains contract information for indicating disconnection. After receiving the data frame and analyzing the information field in the VP-IE, the ammeter replies the VP-IE-containing data frame to the handheld meter reading equipment to indicate that the communication connection is disconnected and does not respond to the point-to-point communication message any more; and after receiving the data frame replied by the ammeter, the handheld meter reading equipment releases the resources occupied by the communication connection and waits for the next round of operation.
The method overcomes the defects that when the mobile meter reading equipment is used for meter reading in a Wi-SUN wireless network, the communication is carried out in a networking mode, the networking time consumption is long, the meter reading cannot be carried out by nodes which are not networked, the mobile performance of the handset is poor, the parent node needs to be replaced and the network is accessed again when the handset is moved, and the like, obtains the relevant information of the electric meters deployed in the signal coverage range of the handheld meter reading equipment through rapid meter searching, then establishes point-to-point communication connection with each electric meter and carries out communication meter reading without networking, and improves the meter reading efficiency.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A mobile meter reading method based on a WiSUN protocol is characterized in that a handheld meter reading device is adopted to read an electric meter in a network, the handheld meter reading device and the electric meter are provided with WiSUN communication modules, and the meter reading method comprises the following steps:
s1, searching an ammeter; searching the ammeter in the signal coverage range of the handheld meter reading equipment, and acquiring and storing the communication address of the searched ammeter;
when the handheld meter reading equipment searches for the electric meters, broadcasting and sending PA frames on all available channels, wherein the PA frames comprise specific field information used for indicating that the PA frames are used for searching for the handheld meter reading equipment, broadcasting and sending PAS frames on all the available channels after all the electric meters in the signal coverage range of the handheld meter reading equipment receive the PA frames sent by the handheld equipment, acquiring and storing information of the electric meters after the handheld meter reading equipment receives the PAS frames sent by the electric meters, and in the process of searching for the electric meters, the handheld meter reading equipment and the electric meters acquire information of the two parties through information interaction;
s2, establishing connection; establishing point-to-point communication connection between the handheld meter reading equipment and an ammeter to be read;
the handheld meter reading device sends appointment information containing appointment information for applying for establishing point-to-point communication connection to the ammeter to be read, and the ammeter replies a data frame containing the appointment information for establishing the point-to-point communication connection to the handheld meter reading device after receiving the application, so as to indicate that the point-to-point communication connection is successfully established;
s3, communication meter reading; the handheld meter reading equipment and the electric meter perform data interaction in a point-to-point communication mode to realize meter reading;
s4, disconnecting the connection; and after the meter reading is finished, the handheld meter reading equipment is disconnected from the electricity meters completing the meter reading in point-to-point communication connection, the reading of the next electricity meter is continued until all the electricity meters complete the reading, and the meter reading is finished.
2. The mobile meter reading method based on the WiSUN protocol as claimed in claim 1, wherein: the specific field information is contained in a reserved field of the PA frame or a VH-IE field carried by the PA frame.
3. The WiSUN protocol-based mobile meter reading method according to claim 1, wherein: the method comprises the steps that a handheld meter reading device sends a VP-IE-containing data frame to an ammeter to be read, point-to-point communication connection is applied to be established with the ammeter, appointed information for applying the point-to-point communication connection to the ammeter is contained in an information field of the VP-IE, the ammeter receives the VP-IE-containing data frame for applying the point-to-point communication and analyzes the information field in the VP-IE, and then the VP-IE-containing data frame is replied to the handheld meter reading device to indicate that the point-to-point communication connection is successfully established.
4. The WiSUN protocol-based mobile meter reading method according to claim 1, wherein: the handheld meter reading device and the ammeter establish point-to-point communication in a frequency hopping mode, and/or the handheld meter reading device and the ammeter perform point-to-point communication in a frequency hopping mode.
5. The WiSUN protocol-based mobile meter reading method according to claim 1, wherein: in the step S3, the interactive data content between the handheld meter reading equipment and the electric meter comprises meter reading, parameter inquiry and parameter configuration.
6. The mobile meter reading method based on the WiSUN protocol as claimed in claim 1, wherein: in step S3, the message encapsulation format of the interactive data between the handheld meter reading equipment and the electric meter is a Wi-SUN protocol MAC layer data frame format or a UDP frame format or an ICMP frame format.
7. The WiSUN protocol-based mobile meter reading method according to claim 1, wherein: in step S4, the handheld meter reading device unicast-transmits a data frame containing VP-IE to the electric meter completing meter reading, the VP-IE contains convention information for indicating disconnection, the electric meter replies the data frame containing VP-IE to the handheld meter reading device after receiving and analyzing the data frame, the current communication connection is indicated to be disconnected, the point-to-point communication message is not responded, and after receiving the data frame replied by the electric meter, the handheld meter reading device releases resources occupied by the current communication connection and waits for the next round of meter reading operation.
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| PCT/CN2021/085519 WO2022105093A1 (en) | 2020-11-02 | 2021-04-05 | Mobile meter reading method based on wisun protocol |
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| CN112565351B (en) * | 2020-11-02 | 2023-04-18 | 珠海中慧微电子有限公司 | Mobile meter reading method based on WiSUN protocol |
| CN113112785A (en) * | 2021-03-10 | 2021-07-13 | 中国—东盟信息港股份有限公司 | Data transmission method and system for electric energy metering, computer equipment and storage medium |
| CN113422819B (en) * | 2021-06-20 | 2023-12-19 | 深圳弘星智联科技有限公司 | Method for realizing efficient data acquisition by HDLC protocol |
| CN113437998B (en) * | 2021-06-24 | 2022-11-04 | 国网北京市电力公司 | Operation and maintenance debugging method and system, nonvolatile storage medium and processor |
| CN113891185A (en) * | 2021-10-18 | 2022-01-04 | 深圳弘星智联科技有限公司 | Method for collecting information of metering unit by user display unit |
| CN114422878A (en) * | 2021-12-28 | 2022-04-29 | 江苏林洋能源股份有限公司 | Portable and rapid module signal quality acquisition method based on Wi-SUN communication technology |
| CN114726886B (en) * | 2022-02-17 | 2023-02-14 | 厦门市智联信通物联网科技有限公司 | City proprietary internet of things network system based on Wi-SUN technology |
| CN115802294B (en) * | 2022-10-27 | 2023-07-18 | 杭州海兴电力科技股份有限公司 | Method, system, equipment and medium for improving power-down information reporting rate of Wi-SUN (wireless subscriber identity network) |
| CN117714564B (en) * | 2024-02-05 | 2024-04-23 | 成都汉度科技有限公司 | Universal DLT645 protocol analysis method and device based on java language |
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| JP2018014591A (en) * | 2016-07-20 | 2018-01-25 | 株式会社ユピテル | System, device and program |
| WO2018180762A1 (en) * | 2017-03-29 | 2018-10-04 | パナソニックＩｐマネジメント株式会社 | Radio communication device, radio communication program, and repeater |
| JP2019030138A (en) * | 2017-07-31 | 2019-02-21 | 中国電力株式会社 | Watt-hour meter |
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| WO2022105093A1 (en) | 2022-05-27 |
| CN112565351A (en) | 2021-03-26 |
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