Remote power supply system, online detection method of the remote power and remote power supply method

Abstract

The invention relates to a remote power supply system and method. And the system comprises local power supply, remote power supply and user lines connecting the local and remote power supplies, where the remote power supply has characteristic capacitor, the local power supply has timing control circuit and comparison circuit, and the comparison circuit, the user lines and the characteristic capacitor compose a resistor-capacitor charging and discharging circuit; the timing control circuit controls the charging and discharging of the charging and discharging circuit according to the output level of the comparison circuit and judges whether the remote power supply is in its position according to the discharging time of the charging and discharging circuit. And the invention uses the principle of resistor-capacitor charging and discharging to test whether the remote power supply is in its position, simple to implement and able to effectively avoid the conditions that users and maintainers get an electric shock.

Description

technical field [0001] The invention relates to a remote power supply technology, in particular to a remote power supply system and a power supply method thereof. Background technique [0002] As the demand for communication services continues to grow, operators continue to expand their new services to end users, or lay new user networks to provide new services on the basis of utilizing existing subscriber line networks. A common approach is to move broadband and narrowband products to users, using several pairs of twisted pairs or coaxial cables as uplink channels, and more users and services can be separated on the user side. However, when the equipment is transferred to the user side, since the user's environment is complex and it is inconvenient to provide power in most cases, power supply becomes a practical problem that is not easy to solve. [0003] In this case, the operator adopts the method (Linepowering) of providing power from the central office through the subs...

AI Technical Summary

Problems solved by technology

[0013] 1. In order to realize the communication between the local end and the remote end, it is necessary to design the corresponding communication circuit and predetermined communication protocol, so that the design complexity will be greatly increased no matter from the perspective of hardware or software;

[0014] 2. Furthermore, due to the high design complexity, when there is a problem in any part of the software and hardware, communication abnormalities may occur, which may cause the remote end to fail to start, and from the perspective of business assurance, the reliability is reduced

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