A kind of Ethernet power supply method and power supply system
A power supply method, Ethernet technology, applied in the direction of data switching current source, data exchange details, etc., can solve the problem that PD cannot provide power supply, and achieve the effect of low cost and simple implementation method
Active Publication Date: 2018-10-12
湖州帷幄知识产权运营有限公司
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Problems solved by technology
However, this still cannot meet the requirements of POE applications with higher and higher power requirements. When faced with the situation that the power consumption required by the PD is greater than 30W, the existing PSE will not be able to directly provide power supply for the PD that meets the power requirements. limitation
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[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0021] See image 3 , image 3 It is a schematic flowchart of a power-over-Ethernet method according to an embodiment of the present invention. The power-over-Ethernet method 300 includes the following steps:
[0022] Step S302: The POE control module in the power supply device uses the first detection voltage to detect the DC impedance and capacitance values between the power supply output line pairs to determine whether there is a power receiving device connected.
[0023] Specifically, in an embodiment of the present invention, this detection is achieved by providing a small voltage with lim...
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The invention provides an Ethernet power supply method. The Ethernet power supply method comprises steps of: detecting direct current impedances and capacitance values among power supply output line pairs by a POE (Power Over Ethernet) control module in power sourcing equipment by utilizing a first detecting voltage so as to judge whether powered devices are connected; after connection of the powered devices is detected, classifying the powered devices according to power consumption values of the powered devices by adopting a three-event classification mechanism, the powered devices being classified into a first type of powered devices, a second type of powered devices and a third type of powered devices based on the power consumption values of the powered devices; after the classification of the powered devices is determined, supplying the powered devices with the power supply by the power sourcing equipment according to the types of the powered devices. According to the Ethernet power supply method and power supply system provided by the invention, as the powered devices are classified based on the power consumption values of the powered devices by adopting the three-event classification mechanism, the implementation mode is simple, the cost is extremely low, the range of the output power is extended to 60 W, and 100% compatibility with the IEEE PoE standard is also kept.
Description
Technical field [0001] The present invention relates to the field of power over Ethernet, and in particular to a power over Ethernet method and power supply system. Background technique [0002] Power Over Ethernet (Power Over Ethernet, "POE" for short) refers to the use of IP-based terminals (such as IP phones, wireless LANs) without any changes to the existing Ethernet Cat.5 cabling infrastructure. While access points (APs, network cameras, etc.) transmit data signals, they can also provide DC power supply technology for such devices. A complete POE system includes two parts: Power Sourcing Equipment ("PSE") and Powered Device ("PD"). PSE equipment is a device that supplies power to Ethernet client devices, and is also the manager of the entire Ethernet power supply process. The PD device is the client device of the POE system that accepts the power supply PSE load. [0003] The international standard IEEE 802.3af / at defines the interface between PSE / PD and network cable. Curr...
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IPC IPC(8): H04L12/10
Inventor 张恒
Owner 湖州帷幄知识产权运营有限公司