Open wireless sensing network performance test method and open wireless sensing network performance test system
A wireless sensor network and test method technology, applied in the field of communication, can solve the problems of interfering with network communication performance, unable to provide an open test system, interfering with the running status of nodes, etc., to reduce the number of hardware, reduce the number of test backplanes, The effect of improving accuracy
Inactive Publication Date: 2014-04-09
INST OF INFORMATION ENG CAS
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Problems solved by technology
The MoteWorks test system has three main disadvantages: it can only provide test services for MICA nodes; when it collects test data, it will interfere with the running status of nodes; when it transmits test data, it will interfere with the communication performance of the network
Harvard University’s MoteLab test system is mainly aimed at TMote Sky nodes, and Ohio State University’s Kansei is mainly aimed at starGate. These test systems cannot provide an open test system to provide test services for various sensor nodes.
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[0045] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0046] Such as figure 1 As shown, in this test system, there is only one upper computer 1, which is physically connected to N lower computers 2 through Ethernet, and the upper computer 1 and lower computers 2 realize information exchange through the TCP / IP protocol. The lower computer 2 is connected to the test backplane 3 through a high-speed interface, and uses the Serial Peripheral Protocol (SPI) to realize information exchange. Eight programming modules 4 are connected to each test backplane 3 , and each programming module 4 is connected to a node 5 under test.
[0047] Such as figure 2 As shown, the test backplane 3 is connected to the programming module 4 through a 9-pin low-speed connection, of which 1 and...
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The invention relates to an open wireless sensing network performance test method and an open wireless sensing network performance test system and particularly relates to high-precision measurement on performances such as delay, packet loss rate and topology. The platform is composed of an upper computer, lower computers, test backplanes, programming modules and measured nodes. The test backplanes are connected by a clock synchronization signal line, and high-precision time synchronization is completed by the adoption of a software and hardware cooperation mode; the measured nodes measure variable delay of air interfaces and low-speed wired interfaces in the transmission process and are used for revising the transmission delay of a data packet; the test backplanes adopt a fixed-length segmentation method on a test data packet and converts the variable delay into fixed relay; flexible remote programming is realized by using parameters to locate a file; a stable sensing network topology is obtained by adopting a link relevance method; and a sequence number mapping algorithm is adopted to solve the problem of sequence number overflow and realize accurate packet loss rate calculation.
Description
technical field [0001] The invention relates to the communication field, in particular to an open wireless sensor network performance testing method and system. Background technique [0002] The wireless sensor network is composed of a large number of low-cost miniature sensor nodes, which collaboratively realize the perception, collection, processing and control tasks of the environment, and are widely used in national defense, military, industrial control, urban transportation, health care, environmental monitoring, Building monitoring and many other fields. [0003] The capabilities of wireless sensor nodes in computing, storage and communication are very limited, and the performance testing of wireless sensor networks has always been a problem that plagues the research and large-scale application of wireless sensor networks. In addition, there are many software and hardware platforms for wireless sensor networks. The hardware platforms include Smart Dust, MICA, TELOS, a...
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IPC IPC(8): H04L12/26H04W24/00H04W84/18
Inventor 石志强孙利民朱红松赵忠华甘伟李晓森刘利营张晓明
Owner INST OF INFORMATION ENG CAS