CN112752285B - Sniffing copy control equipment and method for Wi-SUN network test - Google Patents
Sniffing copy control equipment and method for Wi-SUN network test Download PDFInfo
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- CN112752285B CN112752285B CN202011032480.1A CN202011032480A CN112752285B CN 112752285 B CN112752285 B CN 112752285B CN 202011032480 A CN202011032480 A CN 202011032480A CN 112752285 B CN112752285 B CN 112752285B
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Abstract
The invention discloses sniffing copy control equipment and a sniffing copy control method for Wi-SUN network testing, which overcome the problems that the traditional equipment in the prior art is not suitable for a frequency hopping network and is difficult to communicate, and comprises a sniffer mode and a copy device mode, wherein the sniffer mode is used for acquiring and extracting network information and evaluating the network quality by detecting 4 frames transmitted by the Wi-SUN network in all time periods of the whole network; the transcript mode establishes a local link communication link with node3 without entering the network, and thereafter communicates. The method can effectively help the users of the Wi-SUN network to analyze the early-stage network distribution and investigate later-stage problems, and can save 60% of time for the nodes with problems to judge whether the network access is unsuccessful due to the problems of signal quality or unequal network configuration.
Description
Technical Field
The invention relates to the technical field of embedding, in particular to sniffing copy control equipment and a method for Wi-SUN network testing.
Background
For the Wi-SUN network, relevant equipment which can be used for early network evaluation and later problem analysis is lacking, and the traditional sniffer equipment is not suitable for a frequency hopping network of the Wi-SUN. For a node which is already networked, the node wants to communicate with the node, the node can only join the network firstly in the past, and can only communicate with the node through UDP or TCP after acquiring the IPv6 address of a destination node, communication paths firstly reach a master node root, then the root forwards data, and functions of a sniffer and point-to-point communication are not integrated on one device.
In the prior art, firstly, for a Wi-SUN network, which operates in a frequency hopping mode, if the Wi-SUN network cannot capture air information without accessing the network, each node of the Wi-SUN has its own monitoring list and timing sequence, and each node communicates in its own monitoring list at each time point. Fig. 1 is a schematic view of monitoring of Wi-SUN network nodes, Node1 and Node2 both monitor on their own channel lists, at time T0, Node2 needs to communicate with Node1, and needs to jump to Chan6 channel where Node1 is located first and then start sending data, so that it can be seen that the channel where Node2 sends data is related to its destination Node and also to a time point, and the two parameters are obtained in advance as a sniffer. In addition, for the copy control equipment used for later-stage problem troubleshooting and debugging, communication or configuration with a destination node can be realized only by accessing the network, the process is complex and greatly influenced by the network, information needs to arrive at a root and then be forwarded to a corresponding node, and the timeliness is very poor. This approach is not applicable to all problems, since the problematic node may not be able to properly enter the network itself.
For example, a chinese patent document discloses "a wireless mesh network channel allocation method, apparatus and electronic device", which is under the publication number CN109640394B, wherein the method includes: judging whether the current node is a central node of a topological structure of the wireless mesh network; obtaining network state information of a wireless mesh network; determining the link weight of each link in the wireless mesh network by using the network state information of the wireless mesh network and a first preset formula; determining a collision coefficient of a link pair formed by every two links in the wireless mesh network by using the network state information of the wireless mesh network and a second preset formula; for each link, taking the intersection of the available channel sets of the two end nodes of the link to obtain the available channel set of the link; for each link, determining a target channel of the link when the current network collision function is minimized by using a collision coefficient of a link pair containing the link, a link weight of the link and an available channel set of the link. According to the method, the communication with the destination node can be carried out only by accessing the network, the corresponding node needs to be forwarded after the node is accessed in the process that the link corresponds to the available channel, the timeliness is poor, and the problem of information capture under the condition of not accessing the network cannot be solved.
Disclosure of Invention
The invention aims to solve the problems that the traditional equipment in the prior art is not suitable for a frequency hopping network and is difficult to communicate, and provides sniffing copy control equipment and a method for Wi-SUN network testing.
In order to achieve the purpose, the invention adopts the following technical scheme:
a sniffing and reading control method for Wi-SUN network testing comprises two modes, including a sniffer mode and a reader mode, wherein an upper computer selects the modes according to communication requirements;
the sniffer mode is based on detection of 4 frames sent by the Wi-SUN network in all time periods of the whole network to acquire and extract network information and evaluate the network quality;
the transcript mode communicates upon establishing a local link communication connection without entering a network.
The method can capture the basic information of the Wi-SUN network under the condition of not accessing the network, thereby judging the coverage condition of the Wi-SUN network in a certain area or assisting in analyzing the node problem.
Preferably, the sniffer mode includes the following steps:
a1, entering a monitoring state;
a2, judging whether data are received, entering A3 when the data are received, and judging whether the data are received again when the data are not received;
a3, judging frame types, wherein the frame types comprise PA, PAS, PC and PCS, if frame type errors are detected, returning to a monitoring state, and carrying out communication processing according to the frame types.
Preferably, the processing mode of the frame type PA in a3 is to extract the source address, PANid, frame type, PANCost and network name to be sent; the processing mode of the PAS frame type in the A3 is to extract a sent source address, PANid, a frame type, PANCOST and a network name; the processing mode of the frame type PC in A3 is to extract the source address, PANID, frame type and network name of the transmission; the processing mode of the frame type PCS in a3 is to extract a transmitted source address, PANID, frame type and network name.
For example, by capturing surrounding broadcast frames at a certain place, parameters such as the network name of the network, PANid, PAN Cost of the device that has transmitted the broadcast frames, and the like can be extracted through the broadcast frames, and whether the node at the point can normally enter the network can be predicted through the parameters.
Preferably, the copier mode comprises the steps of:
b1, closing the network access flow;
b2, waiting for writing the destination MAC address;
b3, converting the MAC address into a local Ipv6 address;
b4, establishing connection;
b5, judging whether the connection is successful, if so, carrying out the next step, and if not, returning to the previous step to reestablish the connection;
and B6, communication is carried out.
Preferably, the B3 comprises the following steps:
b31, determining the MAC address to be 6 bytes and 48 bits, and determining the node identifier EUI-48;
b32, inserting 0xFF and 0xFE between the third bit and the fourth bit of the node to form an EUI-64 address;
b33, inverting the U bit, wherein the U bit is the seventh bit of the first byte;
b34, adding a prefix;
b35, middle complement 0.
Preferably, the MAC address in B31 is directly inverted when the address is 8 bytes.
The sniffing copy control equipment for the Wi-SUN network test adopts a sniffing copy control method for the Wi-SUN network test, and comprises hardware, embedded software and a PC end upper computer, wherein the embedded software is used for signal detection, local link communication channel establishment and data receiving and sending on the channel, the hardware is connected with the PC end upper computer through a serial port, and the PC end upper computer is used for displaying the signal detection and the configuration and data input of the equipment.
For the node with the problem which can not normally access the network, whether the node requests to access the network or not and whether the network name of the node is correct or not can be judged by capturing the broadcast request frame of the node, the reason that the node has the problem is analyzed by the disk, and the information is not required to be acquired in a hardware connection mode.
Preferably, the hardware includes a Wi-SUN chip, a power conversion module and a radio frequency circuit module connected to each other.
Therefore, the invention has the following beneficial effects:
1. the basic information of the Wi-SUN network can be captured under the condition of not accessing the network, so that the coverage condition of the Wi-SUN network in a certain area can be judged or the problem of nodes can be assisted to be analyzed;
2. for the node with the problem which can not be accessed normally, whether the node requests to access the network or not, whether the network name of the node is correct or not and the like can be judged by capturing the broadcast request frame of the node, the reason that the node has the problem is analyzed by the disk, and the information is not required to be acquired in a hardware connection mode;
3. the method has the advantages that the local link communication link is established with the nodes in the network, the communication and configuration functions of the nodes are realized, the network access flow is not needed, the signal flow does not need to return to the target node through the master node root, the communication is directly established with the corresponding nodes, the customized protocol of the nodes is matched, the functions of data communication, meter reading, configuration, parameter reading and the like can be realized, and the method can be used for field meter reading field configuration, problem troubleshooting and the like.
Drawings
Fig. 1 is a schematic diagram of prior art listening of Wi-SUN network nodes.
Fig. 2 is a flowchart of the operation of the present embodiment.
Fig. 3 is a block diagram of the structure of the present embodiment.
Fig. 4 is a schematic diagram of a communication link in the copier mode according to the present embodiment.
In the figure: 1. PC end host computer 2, hardware 21, WI-SUN chip 22, power conversion module 23, radio frequency circuit module 3, embedded software.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Example 1:
the embodiment provides a sniffing and transcribing method for Wi-SUN network testing, as shown in fig. 2, the method includes two modes, including a sniffer mode and a transcriber mode, where an upper computer performs mode selection according to a communication requirement;
the sniffer mode is based on detection of 4 frames sent by the Wi-SUN network in all time periods of the whole network to acquire and extract network information and evaluate the network quality;
the transcript mode communicates upon establishing a local link communication connection without entering a network.
The method can capture the basic information of the Wi-SUN network under the condition of not accessing the network, thereby judging the coverage condition of the Wi-SUN network in a certain area or assisting in analyzing the node problem.
Preferably, the sniffer mode includes the following steps:
a1, entering a monitoring state;
a2, judging whether data are received, entering A3 when the data are received, and judging whether the data are received again when the data are not received;
a3, judging frame types, wherein the frame types comprise PA, PAS, PC and PCS, if frame type errors are detected, returning to a monitoring state, and carrying out communication processing according to the frame types;
the processing mode of the frame type PA in A3 is to extract the sent source address, PANid, frame type, PANCOST and network name; the processing mode of the PAS frame type in the A3 is to extract a sent source address, PANid, a frame type, PANCOST and a network name; the processing mode of the frame type PC in A3 is to extract the source address, PANID, frame type and network name of the transmission; the processing mode of the frame type PCS in a3 is to extract a transmitted source address, PANID, frame type and network name.
Preferably, the copier mode comprises the steps of:
b1, closing the network access flow;
b2, waiting for writing the destination MAC address;
b3, converting the MAC address into a local Ipv6 address;
b4, establishing connection;
b5, judging whether the connection is successful, if so, carrying out the next step, and if not, returning to the previous step to reestablish the connection;
and B6, communication is carried out.
Preferably, the B3 comprises the following steps:
b31, determining the MAC address to be 6 bytes and 48 bits, and determining the node identifier EUI-48;
b32, inserting 0xFF and 0xFE between the third bit and the fourth bit of the node to form an EUI-64 address;
b33, inverting the U bit, wherein the U bit is the seventh bit of the first byte;
b34, adding a prefix;
b35, middle complement 0.
Preferably, the MAC address in B31 is directly inverted when the address is 8 bytes.
The embodiment also correspondingly provides sniffing copy control equipment for Wi-SUN network testing, as shown in FIG. 3, the sniffing copy control method for Wi-SUN network testing is adopted, and comprises hardware 2, embedded software 3 and a PC end upper computer 1, wherein the embedded software is used for signal detection, establishing a local link communication channel and performing data receiving and sending on the channel, the hardware is connected with the PC end upper computer through a serial port, and the PC end upper computer is used for displaying the signal detection and displaying the configuration and data input of the equipment; preferably, the hardware includes a Wi-SUN chip 21, a power conversion module 22, and a radio frequency circuit module 23 connected to each other.
Example 2:
the rest of this embodiment is the same as embodiment 1, but the MAC address in step B3 is: "00: 30:48:2A:19: 89"
B31, inserting 0xFF, 0xFE between the third and fourth bits, and running EUI-64 address, namely "00: 30:48FF: FE:2A:19: 89"
B32, then the U bit is inverted, that is, the seventh bit of 00 is inverted to 02, so "02: 30:48: FF: FE:2A:19: 89"
B33, adding prefix, which is 0xFE80, namely "FE: 80:02:30:48: FF: FE:2A:19: 89"
B34, complement 0, namely fe80: 230:48ff: fe2a: 1989.
The sniffer function of the invention is based on the detection of 4 frames sent by the Wi-SUN network in all time periods of the whole network so as to acquire and extract network information and evaluate the network quality. Before and after the Wi-SUN network is established, 4 frames related to node network access are sent in the network at regular time, and the new node does not know the channel list of the network, so the 4 frames are sent in all channels, and based on the characteristic, the network can be evaluated only by sniffing the 4 frames. These 4 frames are a broadcast frame (PA), a broadcast request frame (PAs), a configuration frame (PC), and a configuration request frame (PCs), respectively.
In addition, for the transcriber mode, since the Wi-SUN network is based on the IPv6, IPv6 addresses of all nodes are allocated by the master node root, so that the information cannot be acquired without accessing the network, but the connection can be established through the local link address, which is generated by the MAC address of the node and can only be used for single-level communication and cannot be used for route forwarding, so as to establish a communication link with the target node to implement communication, as shown in fig. 4, the root and 3 nodes form a network, and the transcriber establishes a local link communication link with the node3 without accessing the network, and then performs communication.
The method can capture the basic information of the Wi-SUN network under the condition of not accessing the network, so that the coverage condition of the Wi-SUN network in a certain area can be judged or the problem of nodes can be assisted to be analyzed; if a surrounding broadcast frame is captured at a certain place, parameters such as a network name of the network, PANid, PAN Cost of a device which has sent the broadcast frame and the like can be extracted through the broadcast frame, and whether a node at the point can normally enter the network can be judged through the parameters;
in addition, for the node with the problem which can not normally access the network, whether the node requests to access the network or not and whether the network name of the node is correct or not can be judged by capturing the broadcast request frame of the node, so that the reason that the node has the problem is analyzed by the disk, and the information is not required to be acquired in a hardware connection mode.
The invention establishes a local link communication link with the nodes in the network, realizes the communication and configuration functions of the nodes, does not need a network access flow, does not need to return to a target node through a master node root, directly establishes communication with the corresponding nodes, matches with a customized protocol of the nodes, can realize the functions of data communication, meter reading, configuration, parameter reading and the like, and can be used for field meter reading field configuration and problem troubleshooting.
The method has the advantages that the existing samples can be used, the method can effectively help users of the Wi-SUN network to perform early-stage network distribution analysis and later-stage problem troubleshooting under the simulation condition, and 60% of time can be saved for nodes with problems to judge whether the network access is unsuccessful due to the problems of signal quality or unequal network configuration; for the early-stage network distribution, the sniffer can effectively judge whether a certain place is suitable for placing nodes or not and whether relays need to be placed around, and the success rate of the whole network distribution is obviously improved.
The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.
Claims (5)
1. A sniffing and reading control method for Wi-SUN network testing is characterized by comprising two modes, including a sniffer mode and a reader mode, wherein an upper computer selects the modes according to communication requirements;
the sniffer mode is based on detection of 4 frames sent by the Wi-SUN network in all time periods of the whole network to acquire and extract network information and evaluate the network quality;
the communication is carried out after the communication connection of the local link is established under the condition that the communication is not accessed to the network by the reader mode;
the copier mode comprises the following steps:
b1, closing the network access flow;
b2, waiting for writing the destination MAC address;
b3, converting the MAC address into a local Ipv6 address;
the B3 comprises the following steps:
b31, determining the MAC address to be 6 bytes and 48 bits, and determining the node identifier EUI-48;
directly negating when the MAC address in the B31 is 8 bytes;
b32, inserting 0xFF and 0xFE between the third bit and the fourth bit of the node to form an EUI-64 address;
b33, inverting the U bit, wherein the U bit is the seventh bit of the first byte;
b34, adding a prefix;
b35, middle complement 0;
b4, establishing connection;
b5, judging whether the connection is successful, if so, carrying out the next step, and if not, returning to the previous step to reestablish the connection;
and B6, communication is carried out.
2. The method of claim 1, wherein the sniffer mode comprises the following steps:
a1, entering a monitoring state;
a2, judging whether data are received, entering A3 when the data are received, and judging whether the data are received again when the data are not received;
a3, judging frame types, wherein the frame types comprise PA, PAS, PC and PCS, if frame type errors are detected, returning to a monitoring state, and carrying out communication processing according to the frame types.
3. The method as claimed in claim 2, wherein the processing manner of the frame type PA in a3 is extracting the source address, PANid, frame type, PANCost and network name of the transmission; the processing mode of the PAS frame type in the A3 is to extract a sent source address, PANid, a frame type, PANCOST and a network name; the processing mode of the frame type PC in A3 is to extract the source address, PANID, frame type and network name of the transmission; the processing mode of the frame type PCS in a3 is to extract a transmitted source address, PANID, frame type and network name.
4. A sniffing copy control device for Wi-SUN network testing adopts the method of claim 1, and is characterized by comprising hardware, embedded software and a PC-end upper computer, wherein the embedded software is used for signal detection, establishing a local link communication channel and performing data receiving and sending on the channel, the hardware is connected with the PC-end upper computer through a serial port, and the PC-end upper computer is used for displaying the signal detection and the configuration and data input of the device.
5. The sniffing copy control device for Wi-SUN network test as claimed in claim 4, wherein the hardware comprises a Wi-SUN chip, a power conversion module and a radio frequency circuit module which are connected with each other.
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| 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 |
| 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) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102821401A (en) * | 2012-09-06 | 2012-12-12 | 北京傲天动联技术有限公司 | Method for controlling wireless mesh network with wireless access controller |
| CN103096344A (en) * | 2011-11-01 | 2013-05-08 | 华为技术有限公司 | Method and device for detecting access point |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080069068A1 (en) * | 2006-09-18 | 2008-03-20 | Tropos Networks, Inc. | Providing a client with wireless link quality, and network information |
| CN101902744B (en) * | 2010-07-28 | 2013-05-01 | 南京航空航天大学 | Intrusion detection system of wireless sensor network based on sniffer |
| CN103415069A (en) * | 2012-11-01 | 2013-11-27 | 上海物联网有限公司 | Mobile node positioning algorithm based on integration of sensor network and cellular network |
| JP2014138273A (en) * | 2013-01-16 | 2014-07-28 | Nakayo Telecommun Inc | Meter reading data collection device, radio meter reading system, and meter reading data collection method |
| KR101672135B1 (en) * | 2015-06-03 | 2016-11-02 | 한국전력공사 | Apparatus and method for generating address of intelligent remote reading system |
| CN107295464A (en) * | 2017-06-27 | 2017-10-24 | 西南大学 | Zigbee orients network-building method and its system |
-
2020
- 2020-09-27 CN CN202011032480.1A patent/CN112752285B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103096344A (en) * | 2011-11-01 | 2013-05-08 | 华为技术有限公司 | Method and device for detecting access point |
| CN102821401A (en) * | 2012-09-06 | 2012-12-12 | 北京傲天动联技术有限公司 | Method for controlling wireless mesh network with wireless access controller |
Non-Patent Citations (1)
| Title |
|---|
| 一种用于无线传感器网络的嗅探器;王先峰，项军，胡斌杰;《2009年中国高校通信类院系学术研讨会》;20090918;全部 * |
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