Centralized remote electric power system

Abstract

The invention relates to a centralization remote power feeding system including a primary device machine room arranged with wireless primary devices and power supply primary devices, which include an inverter and a transmission primary device for converting the external electricity 380 V industrial electricity into the -48 to 24 V DC to access to the wireless primary devices to cause the wireless primary devices operate normally; the -48 to 24 V DC is converted to the 220-380V AC through the inverter of the power supply primary devices, then the power is transmitted to the farend unit of the farend covering system of the base station part newly built through the common rod transmission mode of the power transmission line and the optical fiber transmission line, providing the stable power to the farend unit, thereby completing the construction of the whole base station. The invention reduces the building size of the base station, saves the project invest and advances the net operation safety reliability, which is applied in the signal covering of the road, the subway , the tunnel of the city and the small countryside base station.

Description

【Technical field】 [0001] The invention belongs to the technical field of mobile communication, and relates to a method that can improve the stability of the remote rural base station power supply system and reduce the engineering investment of remote base stations, and concentrate the power supply parts of newly built outdoor base stations, micro cells and distributed systems on the central base station of the existing network In the computer room, the power supply is sent to the newly built base station through the common pole transmission mode of the power transmission line and the optical fiber transmission line, so as to achieve the centralized remote power supply system for the purpose of decentralized coverage and centralized maintenance. 【Background technique】 [0002] In the process of mobile communication GSM network and equipment development, the conventional base station construction mode faces the following problems: First, the problem of power consumption: if the...

AI Technical Summary

Problems solved by technology

[0002] In the process of mobile communication GSM network and equipment development, the conventional base station construction mode faces the following problems: First, the problem of power consumption: if the remote remote unit of the conventional base station pulls power from the nearest village, there is a problem of unstable power supply. High failure rate; taking the base station maintenance data of China Mobile Guangdong Shaoguan Branch in 2006 as an example ("four small" construction mode), most of the base stations are connected to 220V rural power nearby

From March to May 2007, there were 455 power failures on the existing network. The number of base stations of the village communication project accounted for 20% of the entire network, and the faults of the village communication project accounted for 30% of the entire network. The ratio is higher than the ratio of the number of base stations in the non-village communication project to the whole network, and the failure rate is higher

If special electricity is used for power supply, it will cause high project investment

For example, China Mobile Shaoguan Branch has conducted a large number of site pre-selection, survey and analysis work with the counties, cities, and districts of the city, and summarized the project scale of Shaoguan City’s village-to-village project and natural village-to-village project, and the projects that need to be constructed. There are 434 stations. According to the special power supply, the average circuit is 100,000 yuan per kilometer. If a base station erects a 3-kilometer circuit, it will generate an investment of more than 300,000 yuan. The total investment of 434 base stations is 130.2 million yuan, which is a very large investment

The second is the maintenance problem: due to the unstable power supply in rural areas, it is necessary to increase the power supply equipment such as voltage regulators, which increases the complexity of the power supply system and reduces the reliability of the system.

For example, from 2006 to the first half of 2007, the number of base stations of China Mobile Shaoguan Branch in the entire network was 812, and the number of base station failures in the entire network was 455. 30%, it can be seen that the proportion of base station faults in village communication projects to the entire network is higher than that of non-village communication project base stations in the entire network, the failure rate is higher, and the maintenance cost is higher

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