Special power supply for gate access control system and control method thereof

A multi-user access and heterogeneous network technology, which is applied in the field of distributed multi-user access and heterogeneous network energy efficiency management, can solve problems such as lack of energy efficiency, achieve the effects of reducing information volume, ensuring spectrum efficiency, and improving efficiency

Active Publication Date: 2017-12-01
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing methods still lack improvements for energy efficiency

Method used

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  • Special power supply for gate access control system and control method thereof
  • Special power supply for gate access control system and control method thereof
  • Special power supply for gate access control system and control method thereof

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Embodiment Construction

[0050] The technical solutions provided by the present invention will be described in detail below in conjunction with specific examples. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0051] The distributed multi-user access method for high-energy-efficiency heterogeneous networks proposed by the present invention is applicable to a heterogeneous network including several macro base stations and small base stations. First, all base stations obtain the current user channel state information through pilot sequence estimation; then, construct the user access equation under QoS constraints according to the channel information; finally, decompose the problem into several sub-problems by the original decomposition method, and iterate alternately Solving this equation, the base station determines its own working mode according to the user channel info...

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Abstract

The invention discloses a special power supply for a gate access control system and a control method thereof. The special power supply includes two independent first input-and-output branches, a second input-and-output branch, a switching module and a battery management module, wherein each input-and-output branch possesses an independent protection circuit, meaning that when one of the branches closes the output due to abnormality, the output of others is not affected, and that when the abnormality is resolved, the branches can restore to normality automatically. In addition, each input-and-output branch possesses an independent abnormality counter; and the times of output closing by a branch due to abnormality becomes greater than a set value, attempts to restore to the normal state stop automatically, and restoration can only be realized manually. The special power supply disclosed in the present invention supports the power supply to a standby battery. When the alternating current is cut off, the two outputs are continuously switched and supplied with power by the standby battery. When the alternating current is restored, the system can automatically switch to the alternating current output and charges the batteries.

Description

technical field [0001] The invention belongs to the technical field of network management, and relates to energy efficiency management technology of heterogeneous networks, and more specifically, relates to a distributed multi-user access method for heterogeneous networks with high energy efficiency. Background technique [0002] Heterogeneous network is a new type of network topology. Different from the traditional cellular network equipped with only macro base stations, heterogeneous network improves the rate of edge users and improves the spectral efficiency of the network by configuring small base stations with low transmission power. While improving system performance, the design of heterogeneous networks also faces many challenges. [0003] User access is an important issue in heterogeneous networks. Compared with macro base stations, the transmission power of small base stations is usually lower. Using traditional user access methods based on path loss or signal rece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/16H04W48/16H04W28/24H04W16/14
CPCH04W16/14H04W28/16H04W28/24H04W48/16Y02D30/70
Inventor 许威黄谢田
Owner SOUTHEAST UNIV
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