CN114401156B - Power supply control method and device of PSE (Power sourcing equipment) equipment, PSE equipment and power supply system - Google Patents
Power supply control method and device of PSE (Power sourcing equipment) equipment, PSE equipment and power supply system Download PDFInfo
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- CN114401156B CN114401156B CN202111485798.XA CN202111485798A CN114401156B CN 114401156 B CN114401156 B CN 114401156B CN 202111485798 A CN202111485798 A CN 202111485798A CN 114401156 B CN114401156 B CN 114401156B
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/28—Current-supply circuits or arrangements for selection equipment at exchanges
Abstract
The invention provides a power supply control method, a device, equipment and a medium of PSE equipment, wherein the PSE equipment comprises a control module, a switching module and a PSE module; the control method comprises the following steps: when the exchange module is in a restarting or fault state, acquiring power supply control information fed back by the exchange module before restarting or fault occurs; and controlling the PSE module to externally supply power according to the power supply control information. By adopting the embodiment of the invention, uninterrupted power supply to the back-end PD equipment can be maintained when the exchange module is restarted or fails, the power supply requirement of the PD equipment needing uninterrupted power supply for a long time is ensured, and the PSE equipment is stably and normally used. In addition, the power supply control information is sent to the control module with shorter initialization time, and the PSE module is directly managed by the control module, so that the PSE device can be quickly powered on externally, and the starting completion time of the PD device is greatly shortened.
Description
Technical Field
The present invention relates to the field of power over ethernet technology, and in particular, to a power supply control method and apparatus for a PSE device, and a power supply system.
Background
Power over ethernet (Power Over Ethernet, poE) is a technology that can transmit power and data over twisted pair wires to end devices in ethernet. A complete Power over ethernet system includes a Power Device (Power SourcingEquipment, PSE) and a Powered Device (PD), where the PSE Device is a Device that powers a client Device of the ethernet system and is also a manager of the overall Power over ethernet system process, and the PD Device is a client Device of the ethernet system, i.e., a PSE load that accepts Power.
However, the inventor finds that in the research of the prior art, the power supply function of the existing PSE device is mainly controlled directly by the exchange module, on one hand, when the exchange module is electrified and started again, the PSE module can be controlled to supply power to the outside after the initialization of the exchange device is completed, and the preparation process of power supply consumes long time; on the other hand, when the switching module is restarted or fails under the condition of uninterrupted power supply, the PSE module cannot be continuously controlled to supply power to the outside, which greatly affects the normal use of PD equipment requiring uninterrupted power supply for a long time.
Disclosure of Invention
The invention provides a power supply control method and device of PSE equipment, the PSE equipment and a power supply system, which can rapidly supply power to PD equipment when the equipment is electrified and started again, and ensure uninterrupted power supply to the PD equipment when the switching module is restarted or fails under the condition of uninterrupted power supply.
To achieve the above object, an embodiment of the present invention provides a power supply control method for a PSE device, including the following steps:
the PSE device comprises a control module, a switching module and a PSE module; the switching module is connected with the control module, and the control module is connected with the PSE module;
the control method is executed by the control module and comprises the following steps:
when the exchange module is in a restarting or fault state, acquiring power supply control information fed back by the exchange module before restarting or fault occurs;
controlling the PSE module to externally supply power according to the power supply control information; wherein, the exchange module and the PSE module respectively adopt independent power supplies.
As an optional embodiment, before the switching module is restarted or fails, after receiving the power supply control information fed back by the switching module, the method further includes:
and when judging that the content of the power supply control information is inconsistent with the content stored in advance, updating the content stored in advance into the content of the power supply control information.
As an alternative embodiment, the power supply control information is a setting operation instruction input by the user by the exchange module, and the power supply control information of the PSE device by the user is stored in the exchange module.
As an optional embodiment, the power supply control information includes at least: the whole machine maximum power, single port power and port priority.
As an alternative embodiment, the PSE device further comprises a PSE power source for powering the PSE module, the PSE power source powering the control module through a power conversion module.
As an alternative embodiment, the PSE device further comprises a switching system power supply for powering the switching module, the switching system power supply powering the switching module through a power conversion module.
The invention further provides a power supply control device of PSE equipment, wherein the PSE equipment comprises a control module, a switching module and a PSE module; the switching module is connected with the control module, and the control module is connected with the PSE module;
the power supply control device is arranged in the control module and comprises:
the information acquisition unit is used for acquiring power supply control information fed back by the switching module before restarting or failure occurs when the switching module is in the restarting or failure state;
the power supply control unit is used for controlling the PSE module to supply power outwards according to the power supply control information; wherein, the exchange module and the PSE module respectively adopt independent power supplies.
The invention also provides PSE equipment, which comprises a control module, a switching module and a PSE module; the switching module is connected with the control module, and the control module is connected with the PSE module;
the control module is used for executing the following steps:
when the exchange module is in a restarting or fault state, acquiring power supply control information fed back by the exchange module before restarting or fault occurs;
controlling the PSE module to externally supply power according to the power supply control information; wherein, the exchange module and the PSE module respectively adopt independent power supplies.
As an optional embodiment, the control module is further configured to, before the switching module is restarted or fails, after receiving power supply control information fed back by the switching module:
and when judging that the content of the power supply control information is inconsistent with the content stored in advance, updating the content stored in advance into the content of the power supply control information.
The other embodiment of the invention correspondingly provides a power over Ethernet system which comprises power receiving equipment and PSE equipment.
Compared with the prior art, the power supply control method and device for the PSE device, the PSE device and the power supply system provided by the embodiment of the invention can keep uninterrupted power supply to the back-end PD device when the exchange module in the PSE device is restarted or fails, and ensure the power supply requirement of the PD device requiring uninterrupted power supply for a long time and the stable and normal use of the PSE device. In addition, by sending the power supply control information to the control module with shorter initialization time and then directly managing the PSE module by the control module, the PSE device can quickly supply power to the outside, the starting completion time of the PD device is greatly shortened, and the PD device is ensured to enter a normal working state as soon as possible.
Drawings
Fig. 1 is a schematic structural diagram of a PSE device according to an embodiment of the invention;
fig. 2 is a schematic flow chart of a power supply control method of a PSE device according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of another PSE device according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of a power supply control device of a PSE device according to an embodiment of the invention;
fig. 5 is a schematic execution flow diagram of a control module of a PSE device according to an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a schematic structural diagram of a PSE device according to an embodiment of the invention is provided, where the PSE device 1 includes a switching module 10, a control module 11, and a PSE module 12; the switching module 10 is connected with the control module 11, and the control module 11 is connected with the PSE module 12.
Referring to fig. 2, a flowchart of a power supply control method of a PSE device according to an embodiment of the invention is shown, where the control method is executed by the control module 11, and includes steps S11 to S12:
s11, when the switching module 10 is in a restarting or failure state, acquiring power supply control information fed back by the switching module 10 before restarting or failure occurs; the restarting comprises restarting when the power is turned on again and restarting under the condition of no power failure.
It should be noted that, the restart state in the present invention may be a start state in which the PSE device is powered up again after the complete machine is powered down, or may be a restart state of the PSE device under a condition that the complete machine is not powered down, specifically may be set according to actual requirements or experiments, and is not limited herein.
It will be appreciated that when the switch module 10 is in a restart or failure state, the main chip in the switch module 10 cannot continuously control the PSE module 12 to externally supply power and perform power management, resulting in power down of the back-end PD device, which is for PD devices requiring long-time uninterrupted POE power supply, for example: the normal use of PD LED illuminators, POE powered medical devices, etc. can have a major impact, and therefore, improvements to existing PSE devices are needed.
S12, controlling the PSE module 12 to supply power to the outside according to the power supply control information; wherein, the exchange module 10 and the PSE module 12 respectively use independent power sources.
The execution order of steps S11 to S12 in the embodiment of the present invention may be set according to the actual application, and is not limited herein. For example, when the PSE device is in the first-time start state, the control device may perform power supply management according to the default power supply control information, rather than performing power supply management according to the power supply control information obtained from the switching module in advance, in which case, those skilled in the art can easily understand that the control device may directly perform step S12 to perform power supply for external use.
It should be noted that, in the embodiment of the present invention, based on improvement of the existing management type switch, by sending the power supply control information to the control module 11 with shorter initialization time and then directly managing the PSE module 12 by the control module 11, when the device is started for the first time or subsequently started, the control module 11 manages the PSE module 12 according to the default power supply control information or the power supply control information stored previously, so that the PSE device 1 is powered up quickly and externally, and the starting completion time of the PD device is greatly shortened. And when the switching module 10 is in a restarting or failure state, acquiring power supply control information fed back by the switching module 10 before restarting or failure occurs, and controlling the PSE module 12 to supply power to the outside according to the power supply control information. Therefore, when the switching module 10 is powered on again, the quick power supply of the PSE device 1 can be realized, when the switching module 10 is restarted or fails under the condition of uninterrupted power supply, uninterrupted power supply to the back-end PD device is maintained, the power supply requirement of the PD device requiring long-time uninterrupted power supply is ensured, and the PSE device 1 is stably and normally used. As is well known in the art, in order to achieve uninterrupted power supply of the PSE device 1, it is mainly by setting redundant power sources to continue to ensure communication of the entire device and PSE power supply when the first power source or the external power source is abnormal. In addition, the PSE function of the existing management type PSE switch is controlled and managed by a CPU (Central processing Unit) built in a main chip, in the initialization process, the main chip cannot control PSE to externally supply power and manage, and for the management type PSE switch, the system initialization can be completed only by carrying out operations such as hardware functional module configuration, loading an operating system, loading an application program and the like during the initialization, the consumed time is usually more than minutes, and even longer for the switch with complex functions. The power can be supplied to the PD equipment at the back end after the initialization of the exchanger system is completed, and the PD equipment can normally work after waiting for the initialization of the PD, so that the time from the power-on/restarting of the PoE exchanger equipment to the normal operation of the PD is the sum of the initialization time of the exchanger system and the initialization time of the PD equipment, and the time consumption is long. For simple PD equipment, the initialization is faster, and the initialization time of the PoE switch restricts the PD start-up completion time.
Compared with the prior art, the power supply control method for the PSE device provided by the embodiment of the invention can keep uninterrupted power supply to the back-end PD device when the switching module 10 in the PSE device 1 is restarted or fails, and ensures the power supply requirement of the PD device needing uninterrupted power supply for a long time and the stable and normal use of the PSE device 1. In addition, by sending the power supply control information to the control module 11 with shorter initialization time and then directly managing the PSE module 12 by the control module 11, the PSE device can quickly supply power to the outside, the starting completion time of the PD device is greatly shortened, and the PD device is ensured to enter a normal working state as soon as possible.
As an alternative embodiment, before the switching module 10 is restarted or fails, after receiving the power supply control information fed back by the switching module 10, the method further includes:
and when judging that the content of the power supply control information is inconsistent with the content stored in advance, updating the content stored in advance into the content of the power supply control information.
Illustratively, the main chip of the exchange module 10 sends the power supply control information to the control chip of the control module 11, and after receiving the power supply control information, the control chip determines whether the power supply control information is consistent with the power supply control information stored by itself, and updates the power supply control information to the storage area when the power supply control information is inconsistent with the power supply control information; the storage area may be a flash or a plug-in storage device 111 in the control chip.
It should be noted that the storage manner and the selection of the storage area may be set according to the actual requirement or the test, and are only illustrative and not limiting.
In addition, it should be noted that, when the switch module 10 of the PSE device 1 is in the initialized state after the switch module 10 is first powered on or is first powered on after restoring the factory settings, the control chip of the control module 11 controls and manages the PSE module 12 with default configuration and management information. After the PSE device 1 is powered down, the management information set by the user last time is simultaneously stored in a storage area of the exchange module 10 and a storage area of the control module 11; after the device is powered on again, during the initial period of the switch module 10, the control module 11 will control and manage the PSE module 12 with the management information stored by the control module 11 and set up last time by the user, and after the switch module 10 is initialized, if the management information is updated, the control module 11 will transfer the new management information to the control module 11, and the control module 11 will update the management information of the storage area and control and manage the PSE module 12 in real time with the new management information.
It should be noted that, by storing the power supply control information in the control module 11 in advance and by real-time synchronization between the exchange module 10 and the control module 11, when the exchange module 10 fails, the power supply control can be directly performed on the PSE module 12 through the control module 11, so as to achieve uninterrupted and rapid power supply of the power supply device.
As an alternative embodiment, the power supply control information is a setting operation instruction input by the user by the switching module 10, and the power supply control information of the PSE device 1 by the user is stored therein.
The management PoE switch provides an interaction mode such as a web management interface or a control port for a user to set management information, wherein the management information (i.e. power supply control information) includes a maximum power of a complete machine, a single-port power, a port priority, and the like, and when the switching module 10 of the PSE device 1 operates normally, the user can set and save related management information by the provided interaction mode, and synchronize the information to the control chip in real time after saving.
It can be understood that, when the switch module 10 is initialized, operations of configuring each functional module of hardware, loading an operating system, an application program and the like need to be performed, and control and management cannot be performed on the PSE module 12 during the period, so that the time from powering up the PSE device 1 to normal external power supply of the PSE module 12 is longer, more than minutes, and even longer for devices with complex functions; and the initialization of MCU and other simple control chips only needs to load the internal functional modules and the required peripheral interfaces, the initialization time is very short, and the basic second level can finish the initialization and control the PSE module 12 to externally supply and manage the power supply. The main chip indirectly manages the PSE module 12 through a control chip with short initialization time, thereby realizing quick power supply and management of the PSE module 12.
It should be noted that, the PSE device 1 is not limited to a product such as a switch, and the interaction mode between the user and the PSE device 1 is not limited to the above interaction mode, and may be specifically set according to actual requirements or experiments, which is not limited herein.
It is worth to say that the power supply management information or the power supply control information can be configured according to the requirements of the user, so that the use experience of the user is further improved,
as an optional embodiment, the power supply control information includes at least: the whole machine maximum power, single port power and port priority.
It should be noted that, the power supply control information may further include: the specific content of the power supply control information may be set according to actual requirements or experiments, and is merely illustrative and not limiting herein.
For example, the web page of the managed PoE switch can feed back the state information such as the real-time power, the residual power, the classification result of the back-end PD and the like of the port for the user, and the control chip can feed back the relevant monitoring information in real time through the monitoring PSE module 12 for the switching module 10 to obtain, so that the switching module 10 can realize the interaction with the user by reading the monitoring information in the control chip during normal operation.
It should be noted that, when the abnormal conditions such as a system restart, a system crash, a chip damage, a hardware short circuit, and a switching system power failure occur in the switching module 10, the control chip can continuously control and manage the PSE module 12 based on the stored management information before the abnormal conditions occur, so as to ensure uninterrupted power supply of the back-end PD device. In addition, the related management information is transferred to the control chip of the control module 11 with shorter initialization time by adopting the main chip, and then the control chip directly manages the PSE module 12 to realize the indirect management of the main chip on the PSE, so that the management type PoE switch can rapidly supply power to the PD equipment at the rear end during the initialization of the power-on again, thereby greatly shortening the starting completion time of the PD equipment and ensuring that the PD equipment enters a normal working state as soon as possible.
It should be noted that the power supply control information may be set according to actual requirements or tests, and is only illustrative and not limiting.
As an alternative embodiment, the PSE device 1 further comprises a PSE power source 121 for powering the PSE module 12, the PSE power source 121 powering the control module 1111 through a power conversion module 112.
It should be noted that, by the independent power supply designs of the PSE module 12 and the switch module 10, the power supply of the PSE system side (the control module 11 and the PSE module 12) is not affected under the condition that the power supply of the switch module 10 fails or the switch module 10 is shorted, so that the normal uninterrupted power supply of the PSE device 1 is ensured. In addition, based on the main chip, related management information is transferred to the control chip with shorter initialization time, and then the control chip directly manages the PSE module 12 to realize indirect management of the main chip on the PSE, so that the PSE device 1 can rapidly supply power to the outside.
As an alternative embodiment, the PSE device 1 further comprises a switching system power supply 101 for powering the switching module 10, the switching system power supply 101 powering the switching module 10 through a power conversion module 102.
It should be noted that, by configuring the separate power supplies for the switching module 10 and the PSE module 12, the influence of the switching module 10 on the power supply of the PSE module 12 can be avoided, so that uninterrupted and rapid power supply of the PSE device 1 is achieved when the switching module 10 is abnormal.
As an alternative embodiment, the PSE device 1 further comprises a network signal transformer 13 and an ethernet port 14 to enable power supply to the back-end PD device.
The main chip of the switch module 10 transmits the related management information to the control chip, the control chip stores the management information in the external memory device or the built-in flash, the control chip directly manages the PSE module 12 according to the related management information, controls the PSE module 12 to supply power to the outside, realizes indirect management of the PSE module 12 by the main chip, and the power supply provided by the PSE module 12 is coupled with the data information of the switch module 10 in the network signal transformer 13 and output through the ethernet port 14.
It should be noted that, in theory, the network signal transformer 13 may not be needed, and the connection to the ethernet port 14 may also be able to work normally. But the transmission distance is limited, and when the network ports with different levels are connected, the external interference to the chip is also large, and after the network signal transformer 13 is connected, the network signal transformer can also be used for signal level coupling.
As an alternative embodiment, see fig. 3, the pse device 1 further comprises a switched backup system 15.
It should be noted that, when the switching module 10 is abnormal, the PSE can supply power continuously and rapidly, and at the same time, trigger the switching backup system to start, so as to ensure normal power supply and maintain communication without interruption, and also meet the requirement of continuous operation of application scenarios such as AP wireless coverage, IP camera video monitoring and the like which need to work continuously for a long time when the switching main system is abnormal, and ensure uninterrupted operation of the whole application topology.
The specific design structure, the interactive information storage mode, the exchange information content, the information transmission interface and the mode of each module can be set according to actual requirements or experiments, and are not limited herein. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 4, a schematic structural diagram of a power supply control device 4 of a PSE device according to an embodiment of the invention is shown, where the PSE device 1 includes a control module 11, a switching module 10, and a PSE module 12; wherein, the exchange module 10 is connected with the control module 11, and the control module 11 is connected with the PSE module 12;
the power supply control device 4 is disposed inside the control module 11, and includes:
an information obtaining unit 41, configured to obtain power supply control information fed back by the switching module 10 before the restart or the failure occurs when the switching module 10 is in the restart or the failure state; the restarting comprises restarting when the power is on again and restarting under the condition of no power failure;
a power supply control unit 42, configured to control the PSE module 12 to supply power to the outside according to the power supply control information; wherein, the exchange module 10 and the PSE module 12 respectively use independent power sources.
Compared with the prior art, the power supply control device for the PSE device provided by the embodiment of the invention acquires the power supply control information fed back by the switch module 10 before the restart or failure occurs through the information acquisition unit 41, and controls the PSE module 12 to supply power to the outside through the power supply control unit 42. By adopting the embodiment of the invention, uninterrupted power supply to the back-end PD equipment can be maintained when the exchange module 10 in the PSE equipment 1 is restarted or fails, the power supply requirement of the PD equipment needing uninterrupted power supply for a long time is ensured, and the PSE equipment 1 is stably and normally used. In addition, by sending the power supply control information to the control module 11 with shorter initialization time and then directly managing the PSE module 12 by the control module 11, the PSE device 1 can quickly supply power to the outside, the starting completion time of the PD device is greatly shortened, and the PD device is ensured to enter a normal working state as soon as possible.
As an alternative embodiment, before the switching module 10 is restarted or fails, after receiving the power supply control information fed back by the switching module 10, the method further includes:
and when judging that the content of the power supply control information is inconsistent with the content stored in advance, updating the content stored in advance into the content of the power supply control information.
As an alternative embodiment, the power supply control information is a setting operation instruction input by the user by the switching module 10, and the power supply control information of the PSE device 1 by the user is stored therein.
As an optional embodiment, the power supply control information includes at least: the whole machine maximum power, single port power and port priority.
As an alternative embodiment, the PSE device 1 further comprises a PSE power source 121 for powering the PSE module 12, the PSE power source 121 powering the control module 1111 through a power conversion module 112.
As an alternative embodiment, the PSE device 1 further comprises a switching system power supply 101 for powering the switching module 10, the switching system power supply 101 powering the switching module 10 through a power conversion module 102.
As an alternative embodiment, the PSE device 1 further comprises a network signal transformer 13 and an ethernet port 14 to enable power supply to the back-end PD device.
As an alternative embodiment, the PSE device 1 further comprises a switched backup system 15.
In addition, it should be noted that, the relevant specific descriptions and beneficial effects of the embodiments of the power supply control device of the PSE device in this embodiment may refer to the relevant specific descriptions and beneficial effects of the embodiments of the power supply control method of the PSE device described above, which are not described herein.
Another embodiment of the present invention correspondingly provides a PSE device 1, which includes a control module 11, a switching module 10, and a PSE module 12; the switching module 10 is connected with the control module 11, and the control module 11 is connected with the PSE module 12.
Referring to fig. 5, a schematic execution flow of a control module 11 of a PSE device according to an embodiment of the invention is shown, where the control module 11 is configured to execute steps S51 to S52:
s51, when the switching module 10 is in a restarting or failure state, acquiring power supply control information fed back by the switching module 10 before restarting or failure occurs; the restarting comprises restarting when the power is on again and restarting under the condition of no power failure;
s52, controlling the PSE module 12 to supply power to the outside according to the power supply control information; wherein, the exchange module 10 and the PSE module 12 respectively use independent power sources.
As an alternative embodiment, the control module 11 is further configured to, before the switching module 10 is restarted or fails, after receiving the power supply control information fed back by the switching module 10:
and when judging that the content of the power supply control information is inconsistent with the content stored in advance, updating the content stored in advance into the content of the power supply control information.
As an alternative embodiment, the power supply control information is a setting operation instruction input by the user by the switching module 10, and the power supply control information of the PSE device 1 by the user is stored therein.
As an optional embodiment, the power supply control information includes at least: the whole machine maximum power, single port power and port priority.
As an alternative embodiment, the PSE device 1 further comprises a PSE power source 121 for powering the PSE module 12, the PSE power source 121 powering the control module 1111 through a power conversion module 112.
As an alternative embodiment, the PSE device 1 further comprises a switching system power supply 101 for powering the switching module 10, the switching system power supply 101 powering the switching module 10 through a power conversion module 102.
As an alternative embodiment, the PSE device 1 further comprises a network signal transformer 13 and an ethernet port 14 to enable power supply to the back-end PD device.
As an alternative embodiment, the PSE device 1 further comprises a switched backup system 15.
In addition, it should be noted that, the relevant detailed description and the beneficial effects of each embodiment of the PSE device 1 in this embodiment may refer to the relevant detailed description and the beneficial effects of each embodiment of the power supply control method of the PSE device described above, which are not described herein.
Another embodiment of the present invention correspondingly provides a power over ethernet system, which includes a power receiving device 50 and the PSE device 1 according to the foregoing embodiment of the present invention, where the power receiving device 50 is connected to the PSE device 1 through an ethernet port 14 of the PSE device 1.
It should be noted that, in the embodiment of the present invention, the PSE device 1 may be a switch or a router supporting PoE, and the PSE device 1 may include one or more ethernet ports 14.
Those skilled in the art will appreciate that the modules in the apparatus of the embodiments may be adaptively changed and disposed in one or more apparatuses different from the embodiment. The modules or units in the embodiments may be combined into one module or unit, and furthermore they may be divided into a plurality of sub-modules or sub-units. Any combination of all features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be used in combination, except insofar as at least some of such features and/or processes or units are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (9)
1. The power supply control method of PSE equipment is characterized in that the PSE equipment comprises a control module, a switching module and a PSE module; the switching module is connected with the control module, and the control module is connected with the PSE module;
the control method is executed by the control module and comprises the following steps:
when the exchange module is in a restarting or fault state, acquiring power supply control information fed back by the exchange module before restarting or fault occurs; the restarting comprises restarting when the power is on again and restarting under the condition of no power failure;
controlling the PSE module to externally supply power according to the power supply control information; wherein, the exchange module and the PSE module respectively adopt independent power supplies;
the power supply control information is set operation instructions which are input by the switching module in response to a user, and the power supply control information of the PSE equipment by the user is stored in the switching module.
2. The power supply control method of PSE device according to claim 1, further comprising, after receiving power supply control information fed back by the switching module, before restart or failure of the switching module occurs:
and when judging that the content of the power supply control information is inconsistent with the content stored in advance, updating the content stored in advance into the content of the power supply control information.
3. The power control method of the PSE device according to claim 1, wherein the power control information comprises at least: the whole machine maximum power, single port power and port priority.
4. The power control method of the PSE device of claim 1, wherein the PSE device further comprises a PSE power source for powering the PSE module, the PSE power source powering the control module through a power conversion module.
5. The power control method of the PSE device of claim 1, wherein the PSE device further comprises a switching system power supply for powering the switching module, the switching system power supply powering the switching module through a power conversion module.
6. The power supply control device of PSE equipment is characterized by comprising a control module, a switching module and a PSE module; the switching module is connected with the control module, and the control module is connected with the PSE module;
the power supply control device is arranged in the control module and comprises:
the information acquisition unit is used for acquiring power supply control information fed back by the switching module before restarting or failure occurs when the switching module is in the restarting or failure state; the restarting comprises restarting when the power is on again and restarting under the condition of no power failure;
the power supply control unit is used for controlling the PSE module to supply power outwards according to the power supply control information; wherein, the exchange module and the PSE module respectively adopt independent power supplies;
the power supply control information is set operation instructions which are input by the switching module in response to a user, and the power supply control information of the PSE equipment by the user is stored in the switching module.
7. The PSE device is characterized by comprising a control module, a switching module and a PSE module; the switching module is connected with the control module, and the control module is connected with the PSE module;
the control module is used for executing the following steps:
when the exchange module is in a restarting or fault state, acquiring power supply control information fed back by the exchange module before restarting or fault occurs; the restarting comprises restarting when the power is on again and restarting under the condition of no power failure;
controlling the PSE module to externally supply power according to the power supply control information; wherein, the exchange module and the PSE module respectively adopt independent power supplies;
the power supply control information is set operation instructions which are input by the switching module in response to a user, and the power supply control information of the PSE equipment by the user is stored in the switching module.
8. The PSE device of claim 7, wherein the control module is further configured to, prior to a restart or failure of the switching module, after receiving the power control information fed back by the switching module:
and when judging that the content of the power supply control information is inconsistent with the content stored in advance, updating the content stored in advance into the content of the power supply control information.
9. A power over ethernet system comprising a powered device and a PSE device as claimed in claim 7 or 8.
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