CN110957696A - Method for recovering power supply after power supply overload and power failure of POE (Power over Ethernet) equipment - Google Patents
Method for recovering power supply after power supply overload and power failure of POE (Power over Ethernet) equipment Download PDFInfo
- Publication number
- CN110957696A CN110957696A CN201911278240.7A CN201911278240A CN110957696A CN 110957696 A CN110957696 A CN 110957696A CN 201911278240 A CN201911278240 A CN 201911278240A CN 110957696 A CN110957696 A CN 110957696A
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- power
- power supply
- poe
- port
- equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/063—Details concerning the co-operation of many similar arrangements, e.g. in a network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
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Abstract
The invention discloses a method for recovering power supply after power supply overload and power failure of POE (Power over Ethernet) equipment, which comprises the following steps of: step one, the actual total power supply power of all power supply ports of the POE equipment is greater than the rated total power supply power of the POE equipment, the POE equipment is overloaded, the ports are powered off and stop supplying power, all the ports supporting the POE power supply are traversed circularly, and the total power of the ports currently powered by the POE, namely the real total power supply power, is calculated. And step two, acquiring the request power of the port with the highest priority in the ports powered off due to overload, adding the real total power supply power and the request power, comparing the sum with the rated total power supply power of the POE equipment, if the sum is smaller than the rated total power supply power of the POE equipment, recovering the POE power supply of the port, and if the sum is larger than the rated total power supply power of the POE equipment, maintaining the current situation of the port and not supplying power. The method can greatly increase the power utilization rate of the POE equipment, conveniently judge whether the POE equipment recovers the port power supply, and reduce the power waste of the equipment in the actual use.
Description
Technical Field
The invention relates to the field of Power Over Ethernet (POE) power supply, in particular to a method for recovering power supply after power supply overload and power failure of POE equipment.
Background
At present, more and more devices supporting POE power supply are provided in network communication devices, but the method for recovering power supply after power supply overload and power failure in power management of POE devices is implemented by setting a threshold (i.e., a percentage method of total power), that is, when actual power of power supply is greater than a set percentage of total power, power supply is not recovered to a port. The mode causes the waste of the power of the POE equipment, reduces the power utilization rate of the POE equipment and increases the cost in the actual networking.
Disclosure of Invention
The invention aims to provide a method for recovering power supply after power supply overload and power failure of POE equipment, which can accurately judge whether the POE equipment recovers port power supply, increase the power utilization rate of the POE equipment and reduce the power waste of the equipment in actual use.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a method for recovering power supply after power supply overload and power failure of POE equipment comprises the following steps:
step one, the actual total power supply power of all power supply ports of POE equipment is greater than the rated total power supply power of the POE equipment, the POE equipment is overloaded, the Ethernet port with low priority is powered off and stops supplying power, all ports supporting POE power supply are traversed circularly, and the total power of the port currently powered by the POE, namely the real total power supply power, is calculated;
and step two, acquiring the request power of the port with the highest priority in the ports powered off due to overload, adding the real total power supply power and the request power, comparing the sum with the rated total power supply power of the POE equipment, if the sum is smaller than the rated total power supply power of the POE equipment, recovering the POE power supply of the port, and if the sum is larger than the rated total power supply power of the POE equipment, maintaining the current situation of the port and not supplying power.
The method comprises the following steps that if the POE device is not in a forced power supply mode, whether a powered device is accessed to the port is judged by detecting the state of the port, if the powered device is accessed to the port, the Class classification of the powered device of the port is obtained according to the IEEE 802.3af or IEEE 802.3at protocol standard, and the power corresponding to the Class in the IEEE 802.3af or IEEE 802.3at protocol standard is used as the requested power of the powered device of the port.
A further technical solution is that, if the POE device is in the forced power supply mode, whether a powered device is connected to the port is determined by detecting the state of the port, and if the powered device is connected to the port, the 30W power is used as the requested power of the powered device of the port.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the method for recovering power supply after power supply overload and power failure of the POE equipment can greatly increase the power utilization rate of the POE equipment, conveniently judge whether the POE equipment recovers the power supply of the port, and reduce the power waste of the equipment in actual use.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A method for recovering power supply after power supply overload and power failure of POE equipment comprises the following steps:
step one, the actual total power supply power of all power supply ports of the POE device is greater than the rated total power supply power of the POE device, the POE device is overloaded, the ethernet port with the low priority is powered off and stops supplying power, all ports supporting the POE power supply are traversed circularly, and the total power of the port currently powered by the POE, namely the real total power supply power, is calculated.
And step two, acquiring the request power of the port with the highest priority in the ports powered off due to overload, adding the real total power supply power and the request power, comparing the sum with the rated total power supply power of the POE equipment, if the sum is smaller than the rated total power supply power of the POE equipment, recovering the POE power supply of the port, and if the sum is larger than the rated total power supply power of the POE equipment, maintaining the current situation of the port and not supplying power.
In this embodiment, the requested power is obtained in two cases:
if the POE equipment is not in the forced power supply mode, whether powered equipment is accessed to the port is judged by detecting the state of the port, if the powered equipment is accessed to the port, the Class classification of the powered equipment of the port is obtained according to the IEEE 802.3af or IEEE 802.3at protocol standard, and the power corresponding to the Class in the IEEE 802.3af or IEEE 802.3at protocol standard is used as the request power of the powered equipment of the port.
And if the POE equipment is in the forced power supply mode, judging whether the powered equipment is accessed to the port or not by detecting the state of the port, and if the powered equipment is accessed to the port, using the 30W power as the request power of the powered equipment of the port.
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 (3)
1. A method for recovering power supply after power supply overload and power failure of POE equipment is characterized by comprising the following steps:
step one, the actual total power supply power of all power supply ports of POE equipment is greater than the rated total power supply power of the POE equipment, the POE equipment is overloaded, the Ethernet port with low priority is powered off and stops supplying power, all ports supporting POE power supply are traversed circularly, and the total power of the port currently powered by the POE, namely the real total power supply power, is calculated;
and step two, acquiring the request power of the port with the highest priority in the ports powered off due to overload, adding the real total power supply power and the request power, comparing the sum with the rated total power supply power of the POE equipment, if the sum is smaller than the rated total power supply power of the POE equipment, recovering the POE power supply of the port, and if the sum is larger than the rated total power supply power of the POE equipment, maintaining the current situation of the port and not supplying power.
2. The method as claimed in claim 1, wherein if the POE device is not in the forced power mode, determining whether a powered device is connected to the port by detecting a state of the port, if so, obtaining a Class classification of the powered device according to IEEE 802.3af or IEEE 802.3at protocol standard, and using a power corresponding to the Class in the IEEE 802.3af or IEEE 802.3at protocol standard as a requested power of the powered device. .
3. The method of claim 1, wherein the POE equipment is powered on after power failure due to power overload,
if the POE device is in the forced power supply mode, whether the powered device is connected to the port is judged by detecting the state of the port,
if the device is accessed, the 30W power is used as the requested power of the port powered device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911278240.7A CN110957696A (en) | 2019-12-12 | 2019-12-12 | Method for recovering power supply after power supply overload and power failure of POE (Power over Ethernet) equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911278240.7A CN110957696A (en) | 2019-12-12 | 2019-12-12 | Method for recovering power supply after power supply overload and power failure of POE (Power over Ethernet) equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110957696A true CN110957696A (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911278240.7A Pending CN110957696A (en) | 2019-12-12 | 2019-12-12 | Method for recovering power supply after power supply overload and power failure of POE (Power over Ethernet) equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615724A (en) * | 2020-11-03 | 2021-04-06 | 深圳凌特华盛科技有限公司 | POE load priority power supply management system |
Citations (2)
| 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 |
| CN107547209A (en) * | 2017-08-14 | 2018-01-05 | 新华三技术有限公司 | Power distribution method and device |
-
2019
- 2019-12-12 CN CN201911278240.7A patent/CN110957696A/en active Pending
Patent Citations (2)
| 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 |
| CN107547209A (en) * | 2017-08-14 | 2018-01-05 | 新华三技术有限公司 | Power distribution method and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615724A (en) * | 2020-11-03 | 2021-04-06 | 深圳凌特华盛科技有限公司 | POE load priority power supply management system |
| CN112615724B (en) * | 2020-11-03 | 2022-08-02 | 深圳凌特华盛科技有限公司 | POE load priority power supply management system |
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Application publication date: 20200403 |