Acquisition and processing system of global system for mobile communications for railway (GSM-R) network interference signals

Abstract

The invention relates to the field of wireless communication, in particular to an acquisition and processing system of embedded global system for mobile communications for railway (GSM-R) network interference signals based on multiprocessors. The system comprises a processor, a power module, an analog to digital (AD) data acquisition module, a data and program storage module, a remote data transmission module and a data backup module, the AD data acquisition module coverts collected intermediate frequency analog signals of uplink frequency ranges and downlink frequency ranges of a GSM-R into digital signals to be sent to a digital signal processor (DSP) core in the processor, the DSP core operates and processes to store the digital signals in double data rate 2 (DDR2) chip in the data and program storage module, simultaneously the serial advanced technology attachment (SATA) connector stores the digital signals in a high-capacity rigid disk, the AD data acquisition module starts the intermediate frequency analog signals in an abnormal signal-collected frequency range when data acquisition is abnormal, and the AD data acquisition module is communicated with an upper computer through an Ethernet transceiver.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a multiprocessor-embedded GSM-R network interference signal collection and processing system. Background technique [0002] With the rapid development of mobile communication technology, GSM-R dedicated mobile communication system is playing an increasingly important role in the leap-forward development of railways. However, as the electromagnetic environment becomes more and more complex, people pay more and more attention to the problem of interference. . Different from the public mobile communication system GSM, it requires the system to have higher reliability and QoS to ensure the safe operation of trains, so the acquisition and processing of GSM-R network interference signals occupy a very important position. However, for the GSM-R network interference signal acquisition and processing system implemented by a single processor, its hardware resources are limited, and i...

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Problems solved by technology

However, for the GSM-R network interference signal acquisition and processing system implemented by a single processor, its hardware resources are limited, and it cannot collect, process, and store a large amount of interference data on the GSM-R network in real time, nor can it respond to Ethernet in a timely manner. The request for long-distance data transmission leads to the inability to locate the interference source in a timely and accurate manner, causing potential security risks in the network. Therefore, it is difficult for the single-processor method to meet the real-time and accuracy of the GSM-R network interference signal acquisition and processing system. requirements

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