CN103746858A - Method for detecting wireless network topology - Google Patents
Method for detecting wireless network topology Download PDFInfo
- Publication number
- CN103746858A CN103746858A CN201410056233.3A CN201410056233A CN103746858A CN 103746858 A CN103746858 A CN 103746858A CN 201410056233 A CN201410056233 A CN 201410056233A CN 103746858 A CN103746858 A CN 103746858A
- Authority
- CN
- China
- Prior art keywords
- network
- equipment
- information
- list
- capture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000000523 sample Substances 0.000 claims abstract description 57
- 230000006854 communication Effects 0.000 claims abstract description 37
- 238000004891 communication Methods 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000009191 jumping Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000009545 invasion Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Abstract
The invention relates to a method for detecting a wireless network topology. A wireless network comprises a processing center, a to-be-detected network and a probe node, wherein a common computer serves as the processing center, the to-be-detected network consists of a plurality of devices following IEEE802.15.4 wireless communication protocols, and the probe node consists of the equipment capturing IEEE802.15.4 network data. The probe node can capture and upload a data packet which is sent by the to-be-detected network in real time, and the processing center displays the topology connecting relationship on a display screen through the parsed equipment address information in the data packet. The method has the advantages that the influence of any active invasion on the network is avoided, the topology structure relationship of the node is provided for the testing personnel, the testing personnel is helped to find the problems, and the testing efficiency is improved; in addition, through the adoption of the method, the topology of the deployed network can be detected, and the maintenance personnel is helped to detect the problem of the network.
Description
Technical field
The present invention relates to wireless communication field, a kind of method that specifically wireless network topology detects.
Background technology
In recent years, a large amount of products based on IEEE802.15.4 communication protocol put goods on the market, but at develop and field, there are some insoluble problems during based on IEEE802.15.4 communication protocol network, wherein most important is detection to wireless network topology structure: on the one hand, tester is when testing this series wireless network, relation for node in topological network is indefinite, the topological relation of the Dynamic Effect node of network topology, causes node state to change and is difficult for observing; On the other hand, when wireless network is surveyed, need to guarantee that its equipment normally works, avoid interference the normal operation of product and the security performance of network, the detection of the domestic topological structure for Internet of Things at present does not almost have.
Summary of the invention
In order to address the above problem, the present invention by the following technical solutions: a kind of method that wireless network topology detects, for the wireless network based on IEEE802.15.4 standard, realized topological structure detection, it is characterized in that, described wireless network comprises:
The processing center of being served as by the logical computer of a Daepori, this processing center is analyzed the data content transmitting in network, and therefrom obtains effective facility information;
The tested network that equipment by several based on IEEE802.15.4 wireless communication protocol forms;
By several, have and catch the probe node that the equipment of IEEE802.15.4 network data forms, probe node can be caught the wireless data packet of IEEE802.15.4 standard corresponding band, by USB module, be linked into processing center, realize the function that the wireless data packet of catching is sent to processing center;
Described method comprises following process:
Step 1: dispose probe node in tested network: some probe nodes are deployed in tested network, the investigative range that requires probe node to form can cover the distribution of tested network, after probe node distributes well, probe node is linked into processing center by USB interface, and all probe nodes are started to operation, after node to be detected brings into operation, tested network startup operation;
Step 2: probe node is caught the packet sending in tested network, tested network is after operation, equipment in tested network starts communication, whether probe node is monitored always data transmission in the air, when the equipment in tested network is by after wireless transmission data, probe node can listen to packet immediately, monitored to packet be referred to as capture-data bag, probe node sends to processing center by capture-data bag by USB;
Step 3: the packet that processing center analysis captures, processing center receives the capture-data bag of sending from each probe node in real time, resolve the content of capture-data bag, and analyze the send and receive device address of this capture-data bag, utilize the device address information in packet to set up topological connection relation, and topological connection relation is presented on the display screen of processing center.
Further, the concrete implementation step of step 3 is as follows:
The first step: create a list of devices, preserve the facility information having detected in network in this list, this facility information comprises the address information of equipment and jumps the list of devices of communicating by letter with one;
Second step: obtain address information and the receiver address information of sending from capture-data bag;
The 3rd step: to send address information as indexed search list of devices, if there is not this transmitting apparatus, create the corresponding new equipment of this transmission address information, and this new equipment is added in list of devices, proceed to next step;
The 4th step: take receiver address information as indexed search list of devices, if there is not this receiving equipment, create the corresponding new equipment of this receiver address, and new equipment is added in list of devices, proceed to next step;
The 5th step: one of inquiry transmitting apparatus is jumped the list of devices of communication, if there is not receiving equipment information, receiving equipment information is added in a jumping communication equipment list, if having receiving equipment information and this capture-data bag is network leave message bag, this receiving equipment information is deleted from a jumping communication equipment list, proceed to next step;
The 6th step: one of inquire-receive equipment is jumped the list of devices of communication, if there is not transmitting apparatus information, transmitting apparatus information is added in a jumping communication equipment list, if having transmitting apparatus information and this capture-data bag is network leave message bag, this transmitting apparatus information is deleted from a jumping communication equipment list, proceed to next step;
The 7th step: the situation of updating the equipment and link information, and the information after upgrading is presented on display screen, enter next step;
The 8th step: detect whether there is new capture-data bag, if find new capture-data bag, reenter the first step, if there is not new capture-data bag, end operation.
Further, the method is applicable to ZigBee2003 and the follow-up evolution agreement thereof based on IEEE802.15.4 standard.
Further, the method is also applicable to RF4CE agreement and the follow-up evolution agreement thereof based on IEEE802.15.4 standard.
Further, the method is also applicable to 6LowPan agreement and the follow-up evolution agreement thereof based on IEEE802.15.4 standard.
Further, described address information is the one in following address: physical extension address, IEEE32 position, 16 network short addresses, IP address.
The invention has the beneficial effects as follows:
1, this method does not need to embed to protocol stack the related protocol of topology probe, do not need any node in network initiatively to support the detection of the method, therefore the method is supported the IEEE802.15.4 communication equipment of any manufacturers produce, the completely compatible various communication products based on IEEE802.15.4 technology.
2, this method does not need network to increase extra communication process, only needs to send in passive detection network the situation of data, does not affect the normal work and use life-span of network completely.
3, the method does not produce any security implication to network, and network does not need initiatively to probe node, to send data by any specific mode, thereby does not have the impact that system is produced to a series of potentialities destructions.
4, the real-time performance of the method is good, and when the network topology generation dynamic change of node, probe node can detect the network topology change of equipment timely, the dynamic change of real-time display network topology.
Accompanying drawing explanation
Fig. 1 is wireless network principles structural representation of the present invention;
Fig. 2 is the implementation step flow chart of the inventive method;
Fig. 3 is the concrete implementing procedure figure of step 3 in Fig. 2;
Fig. 4 is the wireless network principles structural representation building based on ZigBee2003 standard;
Fig. 5 is the flow chart of wireless network shown in Fig. 4.
In figure: A1-A14, EA, EC, ED, EF, EH, RA, RB, RC are the equipment with IEEE802.15.4 radio communication function, A15, A16, TA, TB are probe node, and A17, HC are processing center.
Embodiment
As shown in Figure 1, the wireless network of this invention comprises the processing center of being served as by the logical computer A 17 of a Daepori, and this processing center can be analyzed the data content transmitting in network, and can be from wherein obtaining effective facility information; By 14 of A1-A14 etc., there is the tested network that the equipment of IEEE802.15.4 radio communication function forms; By A15, two of A16, have and catch the probe node that the equipment of IEEE802.15.4 network data forms, probe node can be caught the wireless data packet of aerial IEEE802.15.4 standard corresponding band, and be linked into processing center by USB module, realize the function that the wireless data packet of catching is sent to processing center.
As shown in Figure 2, described method comprises following process:
Step 1: dispose probe node in tested network, some probe nodes are deployed in tested network, the investigative range that requires probe node to form can cover the main distribution of tested network, after probe node distributes well, probe node is linked into processing center by USB interface, and all probe nodes are started to operation, and after node to be detected brings into operation, tested network startup operation;
Step 2: probe node is caught the packet sending in tested network, tested network is after operation, equipment in tested network starts communication, whether probe node is monitored always data transmission in the air, when the equipment in tested network is by after wireless transmission data, probe node can listen to packet immediately, monitored to packet be referred to as capture-data bag, probe node sends to processing center by capture-data bag by USB;
Step 3: the packet that processing center analysis captures, processing center receives the capture-data bag of sending from each probe node in real time, resolve the content of capture-data bag, and analyze the send and receive device address of this capture-data bag, utilize the device address information in packet to set up topological connection relation, and topological connection relation is presented on the display screen of processing center.
As shown in Figure 3, in Fig. 2, the concrete implementation step of step 3 is as follows:
Step 1001: start processing center, start operation;
Step 1002: create a list of devices, in this list, preserve the facility information having detected in network, this facility information comprises the address information of equipment and jumps the list of devices of communicating by letter with one, and described address information is the one in following address: physical extension address, IEEE32 position, 16 network short addresses, IP address;
Step 1003: obtain address information and the receiver address information of sending from capture-data bag;
Step 1004: to send address information as indexed search list of devices, if there is not this transmitting apparatus, enter step 1011, if there is this transmitting apparatus, enter step 1005;
Step 1005: take receiver address information as indexed search list of devices, if there is not this receiving equipment, enter step 1014, if there is this receiving equipment, enter step 1006;
Step 1006: one of inquiry transmitting apparatus is jumped the list of devices of communication, if there is not receiving equipment information, enters step 1007, if there is receiving equipment information, enters step 1012;
Step 1007: one of inquire-receive equipment is jumped the list of devices of communication, if there is not transmitting apparatus information, enters step 1008, if there is transmitting apparatus information, enters step 1015;
Step 1008: the situation of updating the equipment and link information, and the information after upgrading is presented on display screen;
Step 1009: detect whether there is new capture-data bag, if find new capture-data bag, enter step 1002, if there is not new capture-data bag, enter step 1010;
Step 1010: end operation;
Step 1011: create and send the corresponding new equipment of address information, and this new equipment is added in list of devices;
Step 1012: detect whether the packet obtaining is that network leaves packet, if so, enter step 1013, if not, enter step 1008;
Step 1013: receiving equipment information is jumped communication equipment list and deleted from transmitting apparatus one;
Step 1014: create the corresponding new equipment of receiver address, and new equipment is added in list of devices;
Step 1015: detect whether the packet obtaining is that network leaves packet, if so, enter step 1016, if not, enter step 1008;
Step 1016: transmitting apparatus information is jumped communication equipment list and deleted from receiving equipment one.
Further, the method detecting by Fig. 1, Fig. 2 and the common wireless network topology embodying of Fig. 3, be not only applicable to ZigBee2003 and follow-up evolution agreement thereof based on IEEE802.15.4 standard, also be applicable to RF4CE agreement and follow-up evolution agreement thereof based on IEEE802.15.4 standard, moreover, the method is also applicable to 6LowPan agreement and the follow-up evolution agreement thereof based on IEEE802.15.4 standard.
For better making the present invention to be understood, the wireless network building take ZigBee2003 standard illustrates as embodiment.As shown in Figure 4, TA, TB are probe node, HC is processing center, other equipment consists of the network being detected, the arrow representative of dotted line has data to transmit to the one end with arrow from one end of dotted line, TA can detect the communication process of equipment EA, RB, EC, ED, RC, and TB can detect the communication process of equipment EF, RA, EH.
As shown in Figure 5, its step is as follows for the method that this wireless network topology detects:
Step 2001: dispose probe node TA, TB in tested network, some probe nodes are deployed in tested network, the investigative range that requires probe node to form can cover the main distribution of tested network, after probe node TA, TB distribute well, probe node TA, TB are linked into processing center by USB interface, and all probe nodes are started to operation, and after node to be detected brings into operation, tested network startup operation;
Step 2002: probe node is caught the packet sending in tested network, tested network is after operation, the equipment such as EA, RB in tested network, EC, ED, RC start communication, whether probe node TA, TB monitor always data transmission in the air, when the equipment in tested network is by after wireless transmission data, probe node can listen to packet immediately, monitored to packet be referred to as capture-data bag, probe node TA, TB send to HC by capture-data bag by USB;
Step 2003: create a list of devices, in this list, preserve the facility information having detected in network, this facility information comprises the address information of equipment and jumps the list of devices of communicating by letter with one, and described address information is the one in following address: physical extension address, IEEE32 position, 16 network short addresses, IP address;
Step 2004: obtain address information and the receiver address information of sending from capture-data bag;
Step 2005: to send address information as indexed search list of devices, if there is not this transmitting apparatus, enter step 2011, if there is this transmitting apparatus, enter step 2006;
Step 2006: take receiver address information as indexed search list of devices, if there is not this receiving equipment, enter step 2014, if there is this receiving equipment, enter step 2007;
Step 2007: one of inquiry transmitting apparatus is jumped the list of devices of communication, if there is not receiving equipment information, enters step 2008, if there is receiving equipment information, enters step 2012;
Step 2008: one of inquire-receive equipment is jumped the list of devices of communication, if there is not transmitting apparatus information, enters step 2009, if there is transmitting apparatus information, enters step 2015;
Step 2009: the situation of updating the equipment and link information, and the information after upgrading is presented on display screen;
Step 2010: detect whether there is new capture-data bag, if find new capture-data bag, enter step 2003, if there is not new capture-data bag, end operation;
Step 2011: create and send the corresponding new equipment of address information, and this new equipment is added in list of devices;
Step 2012: detect whether the packet obtaining is that network leaves packet, if so, enter step 2013, if not, enter step 2009;
Step 2013: receiving equipment information is jumped communication equipment list and deleted from transmitting apparatus one;
Step 2014: create the corresponding new equipment of receiver address, and new equipment is added in list of devices;
Step 2015: detect whether the packet obtaining is that network leaves packet, if so, enter step 2016, if not, enter step 2009;
Step 2016: transmitting apparatus information is jumped communication equipment list and deleted from receiving equipment one.
The above is the preferred embodiment of the present invention, for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, and these improvements and modifications are also regarded as protection scope of the present invention.
Claims (6)
1. the method that wireless network topology detects, has realized topological structure detection for the wireless network based on IEEE802.15.4 standard, it is characterized in that, described wireless network comprises:
The processing center of being served as by the logical computer of a Daepori, this processing center can be analyzed the data content transmitting in network, and can be from wherein obtaining effective facility information;
The tested network that the equipment that has IEEE802.15.4 radio communication function by several forms;
By several, have and catch the probe node that the equipment of IEEE802.15.4 network data forms, probe node can be caught the wireless data packet of aerial IEEE802.15.4 standard corresponding band, and be linked into processing center by USB module, realize the function that the wireless data packet of catching is sent to processing center;
Described method comprises following process:
Step 1: dispose probe node in tested network, some probe nodes are deployed in tested network, the investigative range that requires probe node to form can cover the main distribution of tested network, after probe node distributes well, probe node is linked into processing center by USB interface, and all probe nodes are started to operation, and after node to be detected brings into operation, tested network startup operation;
Step 2: probe node is caught the packet sending in tested network, tested network is after operation, equipment in tested network starts communication, whether probe node is monitored always data transmission in the air, when the equipment in tested network is by after wireless transmission data, probe node can listen to packet immediately, monitored to packet be referred to as capture-data bag, probe node sends to processing center by capture-data bag by USB;
Step 3: the packet that processing center analysis captures, processing center receives the capture-data bag of sending from each probe node in real time, resolve the content of capture-data bag, and analyze the send and receive device address of this capture-data bag, utilize the device address information in packet to set up topological connection relation, and topological connection relation is presented on the display screen of processing center.
2. the method that a kind of wireless network topology according to claim 1 detects, is characterized in that, the concrete implementation step of step 3 is as follows:
The first step: create a list of devices, preserve the facility information having detected in network in this list, this facility information comprises the address information of equipment and jumps the list of devices of communicating by letter with one;
Second step: obtain address information and the receiver address information of sending from capture-data bag;
The 3rd step: to send address information as indexed search list of devices, if there is not this transmitting apparatus, create the corresponding new equipment of this transmission address information, and this new equipment is added in list of devices, proceed to next step;
The 4th step: take receiver address information as indexed search list of devices, if there is not this receiving equipment, create the corresponding new equipment of this receiver address, and new equipment is added in list of devices, proceed to next step;
The 5th step: one of inquiry transmitting apparatus is jumped the list of devices of communication, if there is not receiving equipment information, receiving equipment information is added in a jumping communication equipment list, if having receiving equipment information and this capture-data bag is network leave message bag, this receiving equipment information is deleted from a jumping communication equipment list, proceed to next step;
The 6th step: one of inquire-receive equipment is jumped the list of devices of communication, if there is not transmitting apparatus information, transmitting apparatus information is added in a jumping communication equipment list, if having transmitting apparatus information and this capture-data bag is network leave message bag, this transmitting apparatus information is deleted from a jumping communication equipment list, proceed to next step;
The 7th step: the situation of updating the equipment and link information, and the information after upgrading is presented on display screen, enter next step;
The 8th step: detect whether there is new capture-data bag, if find new capture-data bag, reenter the first step, if there is not new capture-data bag, end operation.
3. the method that a kind of wireless network topology according to claim 1 and 2 detects, is characterized in that, the method is applicable to ZigBee2003 and the follow-up evolution agreement thereof based on IEEE802.15.4 standard.
4. the method that a kind of wireless network topology according to claim 1 and 2 detects, is characterized in that, the method is also applicable to RF4CE agreement and the follow-up evolution agreement thereof based on IEEE802.15.4 standard.
5. the method that a kind of wireless network topology according to claim 1 and 2 detects, is characterized in that, the method is also applicable to 6LowPan agreement and the follow-up evolution agreement thereof based on IEEE802.15.4 standard.
6. the method that a kind of wireless network topology according to claim 2 detects, is characterized in that, described address information is the one in following address: physical extension address, IEEE32 position, 16 network short addresses, IP address.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410056233.3A CN103746858B (en) | 2014-02-19 | 2014-02-19 | Method for detecting wireless network topology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410056233.3A CN103746858B (en) | 2014-02-19 | 2014-02-19 | Method for detecting wireless network topology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103746858A true CN103746858A (en) | 2014-04-23 |
| CN103746858B CN103746858B (en) | 2017-02-15 |
Family
ID=50503849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410056233.3A Expired - Fee Related CN103746858B (en) | 2014-02-19 | 2014-02-19 | Method for detecting wireless network topology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103746858B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618953A (en) * | 2015-01-08 | 2015-05-13 | 重庆邮电大学 | IEEE802.15.4 standard type 2.4G (Generation) wireless communication technology radio frequency performance based test system |
| CN110808865A (en) * | 2019-11-13 | 2020-02-18 | 北京理工大学 | Passive industrial control network topology discovery method and industrial control network security management system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040210654A1 (en) * | 2003-04-21 | 2004-10-21 | Hrastar Scott E. | Systems and methods for determining wireless network topology |
| CN101572900A (en) * | 2009-06-12 | 2009-11-04 | 华为技术有限公司 | Network topology detection method as well as device, base station controller and node thereof |
| US20100026686A1 (en) * | 2007-10-31 | 2010-02-04 | Bon Hyun Koo | Method, apparatus and system for displaying topology information of wireless sensor network |
| CN101754423A (en) * | 2008-12-19 | 2010-06-23 | 中国科学院沈阳自动化研究所 | Industrial wireless communication method based on IEEE802.15.4 |
| CN202374456U (en) * | 2011-12-06 | 2012-08-08 | 北京理工大学 | Security monitoring system based on wireless radio frequency node network detection |
| CN102970771A (en) * | 2012-11-20 | 2013-03-13 | 西安大唐电信有限公司 | Signal detection and acquisition method and system based on wireless sensor network |
| CN103152352A (en) * | 2013-03-15 | 2013-06-12 | 北京邮电大学 | Perfect information security and forensics monitoring method and system based on cloud computing environment |
-
2014
- 2014-02-19 CN CN201410056233.3A patent/CN103746858B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040210654A1 (en) * | 2003-04-21 | 2004-10-21 | Hrastar Scott E. | Systems and methods for determining wireless network topology |
| US20100026686A1 (en) * | 2007-10-31 | 2010-02-04 | Bon Hyun Koo | Method, apparatus and system for displaying topology information of wireless sensor network |
| CN101754423A (en) * | 2008-12-19 | 2010-06-23 | 中国科学院沈阳自动化研究所 | Industrial wireless communication method based on IEEE802.15.4 |
| CN101572900A (en) * | 2009-06-12 | 2009-11-04 | 华为技术有限公司 | Network topology detection method as well as device, base station controller and node thereof |
| CN202374456U (en) * | 2011-12-06 | 2012-08-08 | 北京理工大学 | Security monitoring system based on wireless radio frequency node network detection |
| CN102970771A (en) * | 2012-11-20 | 2013-03-13 | 西安大唐电信有限公司 | Signal detection and acquisition method and system based on wireless sensor network |
| CN103152352A (en) * | 2013-03-15 | 2013-06-12 | 北京邮电大学 | Perfect information security and forensics monitoring method and system based on cloud computing environment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618953A (en) * | 2015-01-08 | 2015-05-13 | 重庆邮电大学 | IEEE802.15.4 standard type 2.4G (Generation) wireless communication technology radio frequency performance based test system |
| CN110808865A (en) * | 2019-11-13 | 2020-02-18 | 北京理工大学 | Passive industrial control network topology discovery method and industrial control network security management system |
| CN110808865B (en) * | 2019-11-13 | 2021-04-02 | 北京理工大学 | Passive industrial control network topology discovery method and industrial control network security management system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103746858B (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9204323B2 (en) | Method and apparatus for remotely locating wireless network fault | |
| CN103763695B (en) | Method for evaluating safety of internet of things | |
| CN105722012B (en) | Method for connecting communication equipment, terminal equipment and server system | |
| US9351180B2 (en) | Communication system, wireless communication apparatus and state information receiving apparatus | |
| CN101931982A (en) | Network failure positioning method and device | |
| CN102970771B (en) | A kind of acquisition of signal acquisition method based on wireless sensor network and system | |
| US20180165431A1 (en) | Method, apparatus and system for device replacement detection and device recommendation | |
| CN103701825A (en) | Security testing system oriented to mobile intelligent terminal IPv6 protocol and application of protocol | |
| CN105611558A (en) | Equipment for performing ping packet test of WIFI module of IOT | |
| CN103220701B (en) | A kind of AP fault detection method and device | |
| CN102438238A (en) | Method for detecting illegal AP (Assembly Program) under centralized WLAN (Wireless Local Area Network) environment | |
| CN110099398B (en) | Network failure information collection method, network system, storage medium and network device | |
| WO2017117910A1 (en) | Indoor fire detection and alarm method and system based on wireless network signal transmission | |
| CN105323121B (en) | A kind of Network status detection method and device | |
| CN103684912A (en) | Sensor network safety testing method and system | |
| JP2017099274A (en) | System and method for applying aggregated cable test result data | |
| CN102098188A (en) | Method and system for detecting IP (Internet Protocol) connection | |
| Zhao et al. | NSSN: A network monitoring and packet sniffing tool for wireless sensor networks | |
| EP3682595A1 (en) | Obtaining local area network diagnostic test results | |
| CN104853378A (en) | Method, device and terminal for detecting access capability of WIFI network | |
| CN104618181A (en) | Method for detecting intranet operation system of power system based on NMAP (Network Mapper) | |
| CN103746858A (en) | Method for detecting wireless network topology | |
| CN105656730A (en) | Network application quick discovery method and system based on TCP data packet | |
| CN105763574A (en) | Firewall system based on big data analysis | |
| CN107509214A (en) | A kind of more radio frequency link wireless routers and method for diagnosing faults |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |