WO2015196677A1

WO2015196677A1 - Method for supplying power to powered devices by pse and ethernet pse

Info

Publication number: WO2015196677A1
Application number: PCT/CN2014/089706
Authority: WO
Inventors: 瞿艳萍
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-06-27
Filing date: 2014-10-28
Publication date: 2015-12-30
Also published as: CN105323076A

Abstract

A method for supplying power to powered devices by a PSE, an Ethernet power sourcing equipment for implementing the method, and a corresponding computer program and carrier. The method comprises the following steps: configuring power supply information for each Power over Ethernet (POE) port of a PSE; detecting powered devices (PDs) level by level and ordering the PDs by priority; and powering on the ports in turn in a descending order of priority according to the priority order. By means of the technical solution, power supply resources of a PSE can be effectively utilized, meanwhile, PDs can be powered on more safely and reliably, and user experience is better.

Description

Method for powering PSE equipment for powered devices and Ethernet PSE equipment

Technical field

The present invention relates to the field of power over Ethernet, and in particular, to a method for powering a powered device by a PSE device and an Ethernet PSE device.

Background technique

POE (Power over Ethernet) is a standard specification for transmitting data and electrical power simultaneously using existing standard Ethernet transmission cables, and maintains compatibility with existing Ethernet systems and users.

A complete POE system includes two parts: PSE (Power Sourcing Equipment) and PD (Powered Device). The PSE device is a device that powers Ethernet client devices and is the administrator of the entire POE Power over Ethernet process. The PD device is a PSE load that is powered, that is, a client device of the POE system, such as an IP phone, a network security camera, and a PDA or a mobile phone charger.

After the PSE device detects a PD, it does not make priority judgments and directly powers on the PD. The defect is that when multiple PDs are connected to the PSE device at the same time, in order to ensure the security and reliability of power-on, some PD devices need to be powered on in a certain order, but most of the current PSE devices cannot If the power of the PSE device is insufficient, the power consumption of the PSE device is not reasonable enough and the user experience is not good because the priority is not determined before the power is turned on.

Summary of the invention

The main object of the present invention is to provide a method for a PSE device to supply power to a powered device, which aims to effectively solve the technical problem that the current resource utilization is not reasonable.

In order to solve the above technical problems, the following technical solutions are adopted:

A method for a PSE device to power a powered device includes the following steps:

Provisioning power supply information for each Power over Ethernet POE port of the PSE device;

Perform hierarchical detection on the PD of the powered device and sort them according to priority;

According to the priority order, the ports are powered up in order of priority from high to low.

Optionally, the step of performing hierarchical detection on the powered device PD and sorting according to priorities includes:

Performing hierarchical detection on the PD device through the POE port;

The POE port is successfully detected and reported.

The POE ports of the reported messages are arranged in descending order of priority;

The port with the highest priority is ready for power-on.

Optionally, the step of powering up the ports according to the priority order in descending order of priority includes:

The POE port that is ready to be powered on determines whether it satisfies the power supply according to the preset power;

When the preset power meets the power supply, power on the port;

When the preset power does not satisfy the power supply, the power-supply ports whose priority is lower than the POE port that is powered on are sequentially turned off according to the priority from low to high, until the preset power of the POE port that is ready to be powered on meets the power-on. Claim;

After the power-on of the port is completed, the next-port power supply process is performed: that is, the next highest-priority port is powered on according to the order in the message queue;

The preset power is a value obtained by subtracting the real-time power from the maximum threshold power of the PSE, and the real-time power is the sum of the actual powers of all the ports that the PSE is supplying.

Optionally, when the preset power does not satisfy the power supply, the powered ports that are lower in priority than the POE ports that are powered on are sequentially turned off in descending order of priority until the POE port that is ready to be powered on. The steps of preset power to meet the power-on requirements include:

Compare the priority of the powered port and the POE port that is powered on;

If the priority of the POE port to be powered on is the lowest, the power supply to stop the port is executed;

If the priority of the POE port to be powered on is not the lowest, the powered port with the lower priority than the POE port that is powered on is turned off in the order of priority from low to high until the POE port is ready for power-on. Set the power to meet the power-on requirements;

If all ports with lower priority than the POE port are powered off and the preset power is still insufficient, the port will not power on and exit the process.

Optionally, the step of determining, by the preset power, whether the POE port is powered on, according to the preset power, includes:

Detect real-time power and calculate preset power of the POE port to be powered on;

Comparing the preset power with the maximum threshold power of the POE port to be powered on. If the preset power is greater than or equal to the threshold power of the port, determining that the preset power meets the power supply; if the preset power is less than the POE port threshold power, determining the preset The power does not meet the power supply.

Optionally, the method further includes:

When the POE port is powered on, the POE port is successfully powered on and the device is successfully powered on. If the POE port fails to be powered on, the POE port fails to be powered on and the device fails to report the power failure.

An Ethernet PSE device includes a power supply information configuration module, a priority detection module, and a power supply control module, wherein:

The power supply information configuration module is configured to: configure power supply information for each of the Ethernet powered POE ports of the PSE device;

The priority detection module is configured to: perform hierarchical detection on the powered device PD, and sort according to priority;

The power supply control module is configured to: power up the ports in order of priority from high to low according to priority ordering.

Optionally, the priority detection module is configured to perform hierarchical detection on the powered device PD according to the following manner, and sort according to priority:

Performing hierarchical detection on the PD device through the POE port;

The POE port is successfully detected and reported.

The port with the highest priority is ready for power-on.

Optionally, the power supply control module includes a determining submodule and an executing submodule, where:

The determining sub-module is configured to: determine, according to the preset power, whether the power supply is satisfied according to the preset power-on POE port;

The execution submodule is set to:

When the preset power meets the power supply, the POE is powered on for the port;

After the power-on of the port is completed, the determining sub-module determines whether the next port meets the power supply.

Optionally, the determining submodule is further configured to: compare a priority of the powered port and the POE port that is to be powered on;

The execution submodule is further configured to:

If the priority of the POE port to be powered on is not the lowest, the powered ports with lower priority than the POE ports that are powered on are turned off in order of priority from low to high until the power is turned on. The preset power of the POE port meets the power-on requirement;

Optionally, the determining submodule is configured to determine, according to the preset power, whether the power supply is satisfied according to the preset power POE port according to the following manner:

Optionally, the device further includes an identification processing module, wherein:

The identifier processing module is configured to: when the POE port is successfully powered on, the POE port is successfully powered on and the power-on success information is reported to the upper-level device; when the POE port fails to be powered on, the POE port fails to be powered on and fails. The upper device reports a power failure failure message.

A computer program comprising program instructions that, when executed by an Ethernet PSE device, cause the Ethernet PSE device to perform the above-described method of powering a powered device.

A carrier carrying the above computer program.

According to the technical solution of the present invention, the Ethernet PSE device can supply power to the port in descending order of priority, and if the port preset power is insufficient, the power supply of the port with low priority can be cut off, and the port with high priority can be obtained. Powering on first, ensuring that the important powered devices are powered on first, effectively utilizing the power supply resources of the PSE device, and making the PD device more secure and reliable, and the user experience is better.

BRIEF abstract

1 is a schematic flowchart of a method for a PSE device to supply power to a powered device according to an alternative embodiment of the present invention;

2 is a schematic flowchart of a step of powering up a port in descending order of priority according to an optional embodiment of the present invention;

3 is a schematic flowchart of powering up a POE port according to an optional embodiment of the present invention;

4 is a schematic diagram of a processing flow when preset power is insufficient in an optional embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an Ethernet PSE device according to an optional embodiment of the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

Preferred embodiment of the invention

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the invention provides a method for the PSE device to supply power to the power receiving device. Referring to FIG. 1 , in an embodiment of the present invention, the method for the PSE device to supply power to the powered device includes at least the following steps:

In the step S10, the power supply information is configured for each of the Ethernet-powered POE ports of the PSE device. In the embodiment of the present invention, the configuration of the POE port includes, but is not limited to, the maximum threshold power of the port, the maximum threshold power of the device, the port priority, and the port. Enable and so on. If no priority is configured, the default priority of all ports is the lowest. When the priority of each port is the lowest, the default port number has a small priority. For example, a PSE has 1-24 total 24 ports, and the default port. The number 1 has the highest priority.

Step S20: Perform hierarchical detection on the power receiving device PD, and sort according to the priority. In the embodiment of the present invention, the PSE chip can perform hierarchical detection, power-on and power-off, and port over-current detection on the PD device connected to the POE port. , control and status registers, etc. Specifically, in the embodiment of the present invention, the port status is queried, the status of each port is queried, the PD is hierarchically detected, and the port is successfully detected, and the port status message “Detected Payload” is reported to the power supply control module.

In step S30, according to the priority ordering, the ports are powered on in order of priority from high to low. The power supply control module in the PSE sorts the ports according to the priority in the message queue, and the port with the highest priority is ready for power-on. After the port is powered on, go to the next port power-on process.

When the preset power of the port is insufficient, the PSE cuts off the power supply of the port with the lower priority, and the port with the higher priority is powered on first, ensuring that the important powered device is powered on first, and effectively uses the power supply of the PSE device. Resources also make PD devices more secure and reliable, and user experience is better.

Referring to FIG. 2, in an embodiment, the foregoing step S30 may include:

Step S31: determining, according to the preset power, whether the POE port to be powered on meets the power supply; before powering on, the power supply control module detects the real-time power, and calculates the preset power of the POE port that is to be powered on, the preset The power is the value obtained by subtracting the real-time power from the maximum threshold power of the PSE. The real-time power is the sum of the actual power of all the ports that the PSE is supplying.

In step S32, when the preset power meets the power supply, the POE port is powered on; if the preset power is greater than or equal to the port threshold power, the port preset power is sufficient, and the POE port can supply power.

In step S33, when the preset power does not satisfy the power supply, the powered ports whose priority is lower than the POE port to be powered on are sequentially turned off according to the priority from low to high until the preset power of the POE port that is ready to be powered on. Meet the power requirements. If the preset power is less than the threshold power of the port, the port preset power is insufficient, and the POE port cannot be powered. At this time, the power supply control module sequentially turns off the powered ports whose priority is lower than the POE port that is ready to be powered up in order of priority from low to high until the preset power meets the power supply.

In step S34, after the port is powered on, the process of powering on the next port is performed: that is, according to the message in the message queue, the port with the highest priority is ready to be powered on, and the above steps S31-S34 are repeated.

Specifically, the foregoing method may specifically include:

Compare the priority of the powered port and the POE port that is powered on;

If all the ports with lower priority than the POE ports are powered off, the pre-requisites are still not met. If the power is sufficient, the port will not power on and exit the process.

In the embodiment of the present invention, when the preset power is insufficient, the low-priority port can be turned off to ensure that the high-priority port is powered on, thereby better realizing the allocation of POE resources.

In an optional embodiment of the present invention, the foregoing step S20 may include:

Performing hierarchical detection on the PD device through the POE port;

The POE port is successfully detected and reported.

The port with the highest priority is ready for power-on.

In the embodiment of the present invention, the PSE chip can perform hierarchical detection, power-on and power-off, port over-current detection, control, and status register on the PD device connected to the POE port. Specifically, in the embodiment of the present invention, the port status is queried, the status of each port is queried, the PD is hierarchically detected, and the port is successfully detected, and the port status message “Detected Payload” is reported to the power supply control module.

In the embodiment of the present invention, the foregoing method may further include the following steps:

When the POE port is powered on, the POE port is successfully powered on and the device is successfully powered on. If the POE port fails to be powered on, the POE port fails to be powered on and the device fails to report the power failure. The embodiment of the invention can notify the user of success or failure of power-on, and improves user experience.

Referring to FIG. 3, in an embodiment of the present invention, the foregoing method may include the following steps:

Step 201: Configure the POE port, including but not limited to: the maximum threshold power of the port, the maximum threshold power of the device, the port priority, and the port enable. If no priority is configured, all port defaults are the lowest by default; in the case of the same priority, the default port number has a lower priority.

Step 202: Determine whether the port is enabled. If the port is enabled, go to step 203.

Step 203: Each port detects and classifies the PD.

Step 204: The software uses a round robin manner to query the status of each port. If the port is successfully detected, the port status message "Detected payload" is reported to the power supply control module.

Step 205: The power supply control module sorts the ports according to the priority in the message queue, and the port with the highest priority is ready for power-on.

Step 206: The power supply control module calculates the preset power, and compares the preset power with the maximum threshold power of the standby power-on port. If the preset power is greater than or equal to the maximum threshold power of the port, the process proceeds to step 207; if the preset power is less than the port The maximum threshold power is then passed to step 208.

Step 207: The port is successfully powered on, and the "power-on success" flag is set, and the message "Power-on success" is reported to the power supply control module, and the process proceeds to step 209.

Step 208: The port enters a processing flow that the power preset power is insufficient, and the process ends, and the process proceeds to step 209.

Step 209: Enter the next port power supply process, that is, the power supply control module powers up the next highest priority port according to the order in the message queue, and repeats the above steps 205-209.

When the preset power of the POE device is insufficient, you need to turn off some ports with lower priority until the preset power is sufficient for the port to be powered. As shown in FIG. 4, when the preset power is less than the maximum threshold power of the standby power-on port, the processing method includes the following steps:

Step 301: Determine whether the priority of the powered port is lower than the preliminary power supply port. If yes, mark the port with the lower priority and go to step 302. If not, go to step 307.

Step 302: Turn off the power supply of the port with the lowest priority, and go to step 303.

Step 303: Calculate the real-time power and preset power of the POE system, and proceed to step 304.

Step 304: Compare the preset power and the maximum power of the preliminary power-on port. If the former is greater than or equal to the latter, proceed to step 306; if the former is smaller than the latter, repeat steps 301-304.

Step 305: The port is successfully powered on, and the "power-on success" flag is set, and the message "Power-on success" is reported to the system, and the process is exited.

Step 306: The port is not powered on, and the "power-on unsuccessful" flag is set, and the "power-on unsuccessful" message is reported to the control system to end the process.

The embodiment of the invention further provides an Ethernet PSE device for implementing the above method. Referring to FIG. 5, in an embodiment, the Ethernet PSE device includes:

The power supply information configuration module 10 is configured to configure the power supply information for each of the power-over POE ports of the PSE device. In the embodiment of the present invention, the power supply information configuration module 10 configures the POE port, including but not limited to: the maximum threshold power of the port and the device. Maximum threshold power, port priority, Port enable, etc. If no priority is configured, the default priority of all ports is the lowest. When the priority of each port is the lowest, the default port number has a small priority. For example, a PSE has 1-24 total 24 ports, and the default port. The number 1 has the highest priority.

The priority detection module 20 is configured to perform hierarchical detection on the power receiving device PD and sort according to the priority. In the embodiment of the present invention, the priority detection module 20 implements hierarchical detection, power-on and power-off, and port over the POE port. Flow detection, control, and status registers. Specifically, in the embodiment of the present invention, the port status is queried, the status of each port is queried, the PD is hierarchically detected, and the port is successfully detected, and the port status message “Detected Payload” is reported to the power supply control module.

The power supply control module 30 is configured to sort the priorities according to the priority, and sequentially power up the ports in descending order of priority. The power supply control module 30 sorts the ports according to priorities according to the messages in the message queue, and the control ports are powered on in descending order of priority.

In an optional embodiment of the present invention, the power supply control module 30 includes:

The determining sub-module 31 determines whether the POE port that is ready to be powered on meets the power supply according to the preset power;

Execute submodule 32, set to:

When the preset power meets the power supply, the power is turned on for the port;

The preset power refers to a value obtained by subtracting the real-time power from the maximum threshold power of the PSE, and the real-time power is the sum of the actual powers of all the ports that the PSE is supplying.

In another optional embodiment of the present invention, the determining sub-module 31 is further configured to: compare the priority of the powered port and the POE port that is powered on;

The execution sub-module 32 is further configured to:

Specifically, in an embodiment, the determining submodule 31 is specifically configured to:

In an embodiment of the invention, the priority detection module 20 is specifically configured to:

Performing hierarchical detection on the PD device through the POE port;

The POE port is successfully detected and reported.

The port with the highest priority is ready for power-on.

In the embodiment of the present invention, the priority detection module 20 of the PSE chip can perform hierarchical detection, power-on and power-off, port over-current detection, control, and status registers on the PD device connected to the POE port. Specifically, in the embodiment of the present invention, the priority detection module 20 can use the round robin mode to query the status of each port, perform hierarchical detection on the PD, and successfully detect the port successfully, and report the port status message to the power supply control module. load".

In another embodiment of the present invention, the Ethernet PSE device further includes:

The identifier processing module is configured to mark that the POE port is powered on successfully and the power-on success information is reported to the upper-level device when the POE port is powered on. If the POE port fails to be powered on, the POE port fails to be powered on and the device is upgraded. Report the power failure failure message. The embodiment of the invention can notify the user of success or failure of power-on, and improves user experience.

In the embodiment of the present invention, the working process and the implementation manner of the Ethernet PSE device can be specifically referred to the foregoing FIG. 1 to FIG. 4 and its corresponding embodiments, and all technical features of the foregoing embodiments are included. Do not repeat them. The Ethernet PSE device of the present invention supplies power to the POE port in descending order of priority, and when the port preset power is insufficient, the power of the port with the lower priority can be cut off, and the port with the higher priority is powered on first. It ensures that the important power-receiving equipment is powered on first, and the power supply resources of the PSE equipment are effectively utilized. At the same time, the PD equipment is powered on and more secure and reliable, and the user experience is better.

The above is only an alternative embodiment of the present invention, and thus does not limit the scope of the invention, and the equivalent structure or equivalent process transformation made by using the specification and the drawings of the present invention, or directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Industrial applicability

According to the technical solution of the present invention, the Ethernet PSE device can supply power to the port in descending order of priority, and if the port preset power is insufficient, the power supply of the port with low priority can be cut off, and the port with high priority can be obtained. Powering on first, ensuring that the important powered devices are powered on first, effectively utilizing the power supply resources of the PSE device, and making the PD device more secure and reliable, and the user experience is better. Therefore, the present invention has strong industrial applicability.

Claims

A method for a PSE device to power a powered device includes the following steps:

Provisioning power supply information for each Power over Ethernet POE port of the PSE device;

Perform hierarchical detection on the PD of the powered device and sort them according to priority;

According to the priority order, the ports are powered up in order of priority from high to low.
The method of claim 1, wherein the step of performing hierarchical detection on the powered device PD and sorting according to priorities comprises:

Performing hierarchical detection on the PD device through the POE port;

The POE port is successfully detected and reported.

The POE ports of the reported messages are arranged in descending order of priority;

The port with the highest priority is ready for power-on.
The method for powering a power receiving device according to claim 1, wherein the step of powering up the ports in order of priority from high to low according to priority order includes:

The POE port that is ready to be powered on determines whether it satisfies the power supply according to the preset power;

When the preset power meets the power supply, power on the port;

When the preset power does not satisfy the power supply, the power-supply ports whose priority is lower than the POE port that is powered on are sequentially turned off according to the priority from low to high, until the preset power of the POE port that is ready to be powered on meets the power-on. Claim;

After the power-on of the port is completed, the next-port power supply process is performed: that is, the next highest-priority port is powered on according to the order in the message queue;

The preset power is a value obtained by subtracting the real-time power from the maximum threshold power of the PSE, and the real-time power is the sum of the actual powers of all the ports that the PSE is supplying.
The method of claim 3, wherein, when the preset power does not satisfy the power supply, the priority is lower than the POE that is pre-powered according to the priority from low to high. The steps of the power supply port with a low port until the preset power of the POE port that is powered on meets the power-on requirements include:

Compare the priority of the powered port and the POE port that is powered on;

If the priority of the POE port to be powered on is the lowest, the power supply to stop the port is executed;

If the priority of the POE port to be powered on is not the lowest, the powered port with the lower priority than the POE port that is powered on is turned off in the order of priority from low to high until the POE port is ready for power-on. Set the power to meet the power-on requirements;

If all ports with lower priority than the POE port are powered off and the preset power is still insufficient, the port will not power on and exit the process.
The method of claim 3, wherein the step of determining whether the POE port is powered on according to the preset power and the power supply comprises:

Detect real-time power and calculate preset power of the POE port to be powered on;

Comparing the preset power with the maximum threshold power of the POE port to be powered on. If the preset power is greater than or equal to the threshold power of the port, determining that the preset power meets the power supply; if the preset power is less than the POE port threshold power, determining the preset The power does not meet the power supply.
The method of powering a powered device in a PSE device according to any one of claims 1 to 5, the method further comprising:

When the POE port is powered on, the POE port is successfully powered on and the device is successfully powered on. If the POE port fails to be powered on, the POE port fails to be powered on and the device fails to report the power failure.
An Ethernet PSE device includes a power supply information configuration module, a priority detection module, and a power supply control module, wherein:

The power supply information configuration module is configured to: configure power supply information for each of the Ethernet powered POE ports of the PSE device;

The priority detection module is configured to: perform hierarchical detection on the powered device PD, and sort according to priority;

The power supply control module is configured to: power up the ports in order of priority from high to low according to priority ordering.
The Ethernet PSE device of claim 7, wherein said priority detection module is configured Set to perform hierarchical detection on the powered device PD as follows and sort by priority:

Performing hierarchical detection on the PD device through the POE port;

The POE port is successfully detected and reported.

The POE ports of the reported messages are arranged in descending order of priority;

The port with the highest priority is ready for power-on.
The Ethernet PSE device of claim 7, wherein the power supply control module comprises a determination sub-module and an execution sub-module, wherein:

The determining sub-module is configured to: determine, according to the preset power, whether the power supply is satisfied according to the preset power-on POE port;

The execution submodule is set to:

When the preset power meets the power supply, the POE is powered on for the port;

When the preset power does not satisfy the power supply, the power-supply ports whose priority is lower than the POE port that is powered on are sequentially turned off according to the priority from low to high, until the preset power of the POE port that is ready to be powered on meets the power-on. Claim;

After the power-on of the port is completed, the determining sub-module determines whether the next port meets the power supply.

The preset power is a value obtained by subtracting the real-time power from the maximum threshold power of the PSE, and the real-time power is the sum of the actual powers of all the ports that the PSE is supplying.
The Ethernet PSE device of claim 9, wherein

The determining sub-module is further configured to compare the priority of the powered port and the POE port that is powered on;

The execution submodule is further configured to:

If the priority of the POE port to be powered on is the lowest, the power supply to stop the port is executed;

If the priority of the POE port to be powered on is not the lowest, the powered port with the lower priority than the POE port that is powered on is turned off in the order of priority from low to high until the POE port is ready for power-on. Set the power to meet the power-on requirements;

If all ports with lower priority than the POE port are powered off and the preset power is still insufficient, the port will not power on and exit the process.
The Ethernet PSE device of claim 9, wherein the determining sub-module is configured to determine, according to the preset power, whether the power supply is satisfied according to the preset power of the POE port:

Detect real-time power and calculate preset power of the POE port to be powered on;

Comparing the preset power with the maximum threshold power of the POE port to be powered on. If the preset power is greater than or equal to the threshold power of the port, determining that the preset power meets the power supply; if the preset power is less than the POE port threshold power, determining the preset The power does not meet the power supply.
The Ethernet PSE device according to any one of claims 7 to 10, further comprising an identification processing module, wherein:

The identifier processing module is configured to: when the POE port is successfully powered on, the POE port is successfully powered on and the power-on success information is reported to the upper-level device; when the POE port fails to be powered on, the POE port fails to be powered on and fails. The upper device reports a power failure failure message.
A computer program comprising program instructions that, when executed by an Ethernet PSE device, cause the Ethernet PSE device to perform the method of powering a powered device as claimed in any one of claims 1-6.
A carrier carrying the computer program of claim 13.