CN110932871A - Protection method for preventing POE power supply equipment from being overloaded - Google Patents
Protection method for preventing POE power supply equipment from being overloaded Download PDFInfo
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- CN110932871A CN110932871A CN201911272216.2A CN201911272216A CN110932871A CN 110932871 A CN110932871 A CN 110932871A CN 201911272216 A CN201911272216 A CN 201911272216A CN 110932871 A CN110932871 A CN 110932871A
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- power supply
- poe
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- power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
Abstract
The invention discloses a protection method for preventing POE power supply equipment from overloading, which can effectively control the power supply process and power supply power of the POE power supply equipment and manage and control the output of a power supply port in real time; the power supply device has a reliable mechanism to ensure that the POE power supply device cannot generate overload abnormity due to overlarge output power, and can also ensure that the power transmission requirement of the POE power receiving device can be met to the maximum extent within the range of rated output total power.
Description
Technical Field
The invention relates to the field of power supply of electronic products, in particular to a protection method for preventing POE power supply equipment from being overloaded.
Background
All electronic products need to receive power, and most of the electronic products transmit power through a transformer or a power module; the device supporting the POE function can receive power or supply power in a POE manner, specifically, the power is transmitted through a network cable and input through an RJ45 port of the device.
The output power is overlarge and overloaded in the POE power supply process, so that power failure or other abnormal conditions occur. There is a need for a power supply apparatus with an overload protection mechanism to prevent the occurrence of power outages or other anomalies.
Disclosure of Invention
The invention aims to provide a protection method for preventing POE power supply equipment from being overloaded in order to solve the problem of overload of the POE power supply equipment.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a protection method for preventing POE power supply equipment from being overloaded comprises the following steps:
step one, after a POE power supply device is started, checking which ports of all ports supporting POE functions are configured to allow POE power supply;
setting the priority of all ports configured to allow POE power supply, wherein the higher the priority is, the power supply is prioritized;
step three, inquiring all ports which are not powered on in all ports which are configured to allow POE power supply, and starting the POE power supply function of the port with the highest priority
Step four, checking whether the actual output total power of the POE power supply equipment exceeds the rated output total power in real time, wherein the condition that the actual output total power of the POE power supply equipment exceeds the rated output total power is that the POE power supply equipment is overloaded, and the condition that the actual output total power of the POE power supply equipment does not;
step five, if not, continuing to start the power supply function of the port with the maximum priority in the ports which are not powered on by the POE, and checking whether overload occurs or not until all the ports which are configured to allow the POE power supply function to be powered on are powered on; if overload occurs during the port opening, the power supply function of the port with the minimum priority is closed in the ports which are actually supplied with power, so that the actual output power of the power supply equipment is reduced; after the power supply of the ports is closed every time, whether overload exists needs to be continuously checked, if overload exists, the power supply function of the port with the minimum priority in the actual power supply ports is continuously closed until the overload phenomenon disappears;
step five, when all the ports configured to allow the POE power supply are powered on, or the actual output power of the power supply equipment approaches or reaches the rated output total power (the judgment standard is a state that if the next port is added for power supply, the power supply equipment is overloaded), the system is in a normal operation state;
and step six, when the system is in a normal operation state, detecting the actual output power of each port and the total output power of the system in real time, and once the overload phenomenon is found, starting to close the POE power output from the power supply port with the lowest priority until the overload phenomenon disappears.
The POE power supply equipment supports a configurable rated output total power.
The further technical scheme is that ports with the same priority level size identify the power supply sequence according to port ID.
The further technical scheme is that in the power supply process of the POE power supply equipment, only the POE power supply function of one port can be turned on or turned off in each action, and the phenomenon that the power is instantaneously increased and overloaded due to simultaneous power supply is prevented.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the invention can effectively control the power supply process and power supply power of the POE power supply equipment, and can manage and control the output of the power supply port in real time; the power supply device has a reliable mechanism to ensure that the POE power supply device cannot generate overload abnormity due to overlarge output power, and can also ensure that the power transmission requirement of the POE power receiving device can be met to the maximum extent within the range of rated output total power.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a protection method for preventing POE power supply equipment from being overloaded includes the following steps:
step one, after a POE power supply device is started, checking which ports of all ports supporting POE functions are configured to allow POE power supply; the POE power supply equipment supports a configurable rated output total power.
And step two, setting the priority of all ports configured to allow POE power supply, wherein the higher the priority is, the power supply is prioritized. And the ports with the same priority level identify the power supply sequence according to the port ID.
Step three, inquiring all ports which are not powered on in all ports which are configured to allow POE power supply, and starting the POE power supply function of the port with the highest priority
Step four, checking whether the actual output total power of the POE power supply equipment exceeds the rated output total power in real time, wherein the condition that the actual output total power of the POE power supply equipment exceeds the rated output total power is that the POE power supply equipment is overloaded, and the condition that the actual output total power of the POE power supply equipment does not;
step five, if not overloaded, continuing to start the power supply function of the port with the maximum priority level in the ports which are not powered on by the POE, starting the power supply of one port each time, and checking whether overload occurs or not until all the ports which are configured to allow the POE power supply function to be powered on are powered on; if overload occurs during the port opening, the power supply function of the port with the minimum priority is closed in the ports which are in actual power supply, and the power supply of one port is closed every time, so that the actual output power of the power supply equipment is reduced; and after the power supply of the ports is closed every time, continuously checking whether the ports are overloaded or not, and if the ports are overloaded, continuously closing the power supply function of the port with the minimum priority in the actual power supply ports until the overload phenomenon disappears.
And step five, when all the ports configured to allow the POE power supply are powered on, or the actual output power of the power supply equipment approaches or reaches the rated output total power (the judgment standard is a state that the power supply equipment is overloaded if the next port is added for power supply), the system is in a normal operation state.
And step six, when the system is in a normal operation state, detecting the actual output power of each port and the total output power of the system in real time, once the overload phenomenon is found, starting to close the POE power output from the power supply port with the minimum priority, and closing the power supply of one port each time until the overload phenomenon disappears.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (4)
1. A protection method for preventing POE power supply equipment from being overloaded is characterized by comprising the following steps:
step one, after a POE power supply device is started, checking which ports of all ports supporting POE functions are configured to allow POE power supply;
setting the priority of all ports configured to allow POE power supply, wherein the higher the priority is, the power supply is prioritized;
step three, inquiring all ports which are not powered on in all ports which are configured to allow POE power supply, and starting the POE power supply function of the port with the highest priority
Step four, checking whether the actual output total power of the POE power supply equipment exceeds the rated output total power in real time, wherein the condition that the actual output total power of the POE power supply equipment exceeds the rated output total power is that the POE power supply equipment is overloaded, and the condition that the actual output total power of the POE power supply equipment does not;
step five, if not, continuing to start the power supply function of the port with the maximum priority in the ports which are not powered on by the POE, and checking whether overload occurs or not until all the ports which are configured to allow the POE power supply function to be powered on are powered on; if overload occurs during the period of opening the ports, the power supply function of the port with the minimum priority is closed in the ports which are actually supplied with power; after the power supply of the ports is closed every time, whether the ports are overloaded or not is continuously checked, if the ports are overloaded, the power supply function of the port with the lowest priority in the actual power supply ports is continuously closed until the overload phenomenon disappears;
step six, when all ports configured to allow POE power supply are powered on, or the actual output power of the power supply equipment approaches or reaches the rated output total power, the system is in a normal operation state;
and seventhly, detecting the actual output power of each port and the total output power of the system in real time when the system is in a normal operation state, and once the overload phenomenon is found, starting to close the POE power output from the power supply port with the lowest priority until the overload phenomenon disappears.
2. The method of claim 1, wherein the POE power sourcing equipment supports a configurable total power output rating.
3. The method of claim 1, wherein ports with the same priority size identify the power supply sequence according to the port ID.
4. The method of claim 1, wherein during power supply of the POE power sourcing equipment, only a POE power sourcing function of one port can be turned on or off in each operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911272216.2A CN110932871A (en) | 2019-12-12 | 2019-12-12 | Protection method for preventing POE power supply equipment from being overloaded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911272216.2A CN110932871A (en) | 2019-12-12 | 2019-12-12 | Protection method for preventing POE power supply equipment from being overloaded |
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| CN110932871A true CN110932871A (en) | 2020-03-27 |
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| CN201911272216.2A Pending CN110932871A (en) | 2019-12-12 | 2019-12-12 | Protection method for preventing POE power supply equipment from being overloaded |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467284A (en) * | 2020-09-09 | 2022-05-10 | 华为技术有限公司 | Network power supply system |
Citations (6)
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| CN101820348A (en) * | 2010-03-09 | 2010-09-01 | 武汉烽火网络有限责任公司 | Method and device for carrying out overload protection on equipment in POE system |
| CN103200015A (en) * | 2013-04-03 | 2013-07-10 | 武汉烽火网络有限责任公司 | Power over Ethernet (POE) switchboard power supply method |
| CN103546301A (en) * | 2013-10-30 | 2014-01-29 | 上海斐讯数据通信技术有限公司 | Method and system for POE system to carry out overload protection on equipment |
| CN104219063A (en) * | 2014-08-28 | 2014-12-17 | 北京彪骐佳讯科技有限公司 | POE (power over Ethernet) power supply unit |
| CN105323076A (en) * | 2014-06-27 | 2016-02-10 | 中兴通讯股份有限公司 | Method for supplying power to power device (PD) through PSE (power supply equipment), and Ethernet PSE |
| EP3099006A1 (en) * | 2013-06-27 | 2016-11-30 | Philips Lighting Holding B.V. | Powered device and power distribution system comprising the powered device |
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2019
- 2019-12-12 CN CN201911272216.2A patent/CN110932871A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820348A (en) * | 2010-03-09 | 2010-09-01 | 武汉烽火网络有限责任公司 | Method and device for carrying out overload protection on equipment in POE system |
| CN103200015A (en) * | 2013-04-03 | 2013-07-10 | 武汉烽火网络有限责任公司 | Power over Ethernet (POE) switchboard power supply method |
| EP3099006A1 (en) * | 2013-06-27 | 2016-11-30 | Philips Lighting Holding B.V. | Powered device and power distribution system comprising the powered device |
| CN103546301A (en) * | 2013-10-30 | 2014-01-29 | 上海斐讯数据通信技术有限公司 | Method and system for POE system to carry out overload protection on equipment |
| CN105323076A (en) * | 2014-06-27 | 2016-02-10 | 中兴通讯股份有限公司 | Method for supplying power to power device (PD) through PSE (power supply equipment), and Ethernet PSE |
| CN104219063A (en) * | 2014-08-28 | 2014-12-17 | 北京彪骐佳讯科技有限公司 | POE (power over Ethernet) power supply unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467284A (en) * | 2020-09-09 | 2022-05-10 | 华为技术有限公司 | Network power supply system |
| CN114467284B (en) * | 2020-09-09 | 2022-11-22 | 华为技术有限公司 | Network power supply system |
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Application publication date: 20200327 |