Wireless communication interference detection device and method used for electricity information collection system
A collection system and wireless communication technology, applied in the transmission system, electrical components, transmission monitoring, etc., can solve the problems of low detection accuracy, low interference-to-noise ratio, complex detection calculation, etc., and achieve the effect of low calculation cost
Active Publication Date: 2015-01-07
STATE GRID CORP OF CHINA +1
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[0008] The purpose of the present invention is to provide a wireless communication interference detection device and method for the electricity information collection system, which solves the problem of the low interference-to-noise ratio and low detection accuracy of the existing interference detection method, and the detection operation is too complicated, time-consuming and labor-intensive. high cost problem
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0030] Such as figure 1 As shown, the power consumption information collection system applicable to the present invention includes: a main station, a communication channel, and collection equipment, wherein the main station mainly completes business applications, data collection, control execution, and communication scheduling, etc., and the communication channel is used for the main station of the system. The remote data communication between the station and the collection terminal, the collection device is responsible for collecting and providing the raw power consumption information of the whole...
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The invention relates to digital interference detection technologies, in particular to a wireless communication interference detection device and method used for an electricity information collection system. The device comprises a signal combination module, an IFFT module, a spatial autocorrelation matrix calculation module and an interference existence judgment module. The signal combination module is used for combining frequency domain interference noise vectors of M receiving antennae into a matrix U; the IFFT module is used for performing IFFT on the frequency domain interference noise matrix U to a time domain to obtain a time domain interference noise matrix V; the spatial autocorrelation matrix calculation module is used for calculating the spatial autocorrelation matrix of the matrix V; the interference existence judgment module is used for judging whether interference exists or not . The existence of the interference is judged by fully utilizing the spatial correlation of signals, and therefore the influence on detection accuracy when interference noise is low is effectively avoided at a low operation cost within a short consumed time.
Description
technical field [0001] The invention relates to digital interference detection technology, in particular to a wireless communication interference detection device and method for an electricity consumption information collection system. Background technique [0002] The electricity consumption information collection system is an important part of the construction of the smart grid, and the construction of the system is in line with the development direction of the international grid technology. In the power consumption information collection system, a stable and reliable communication system is a crucial link. The remote communication between the collection terminal or concentrator and the system master station must be reliable, real-time and safe, otherwise the effectiveness of the entire system, Both security and stability will face great challenges. Compared with the private network, the investment cost of the existing wireless communication network is lower, and it is mo...
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IPC IPC(8): H04B17/00
Inventor 李琪林赵宏志覃剑卢华向景睿李方硕吴维德龙海莲
Owner STATE GRID CORP OF CHINA