CN102970146A - Power supply device of power over Ethernet (POE) and power supply method - Google Patents
Power supply device of power over Ethernet (POE) and power supply method Download PDFInfo
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- CN102970146A CN102970146A CN2012104150757A CN201210415075A CN102970146A CN 102970146 A CN102970146 A CN 102970146A CN 2012104150757 A CN2012104150757 A CN 2012104150757A CN 201210415075 A CN201210415075 A CN 201210415075A CN 102970146 A CN102970146 A CN 102970146A
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The invention provides a power supply device of a power over Ethernet (POE) and a power supply method. The power supply device of the POE comprises a device power supply, a power supply, a device control module and a power supply control module. The power supply and an access of the device power supply and the power supply control module can be disconnected under the condition that no power is supplied to the POE. The power supply and the access of the device power supply and the power supply control module are connected when the power is supplied to the POE. Accordingly, unified and systemic management control of the modules in the power supply device of the POE is achieved, and electric energy consumption in the power supply and the device power supply is further reduced. In addition, the power-on time of the power supply and the power supply control module is decreased, and the service life of the power supply, the device power supply and the power supply control module is prolonged.
Description
Technical field
The application relates to the communication technology, particularly relates to the power supply unit of a kind of POE, and a kind of method of controlling the power supply unit power supply of POE.
Background technology
POE(Power Over Ethernet, Power over Ethernet) can pass through 10base-T, the power supply of 100BASE-TX, 1000BASE-T realization ethernet network, realized reliably centralized power power supply and easy to use, the network terminal does not need external power supply, only needs a netting twine just can power.This technology is widely used at present, can be used for the power supply plan of IP phone, wireless aps, portable equipment charger, machine for punching the card, camera, data acquisition.
A complete POE system comprises PSE (Power Sourcing Equipment, power supply unit) and PD (Powered Device, power receiving equipment) two parts.Wherein, PSE is the equipment for the ethernet client power devices, also is the manager of whole POE Power over Ethernet process simultaneously.And PD is the PSE load of accepting power supply, i.e. the client device of POE system is such as IP phone, network security video camera, palmtop PC and charger for mobile phone etc.
Current a lot of communication equipment, for example in the switch with regard to integrated POE function, to reach by the purpose of Ethernet to the PD power supply.Cpu controller on the POE veneer generally all is buckled in or is inserted on the master communication circuit plate.The control CPU of POE and the CPU on the master communication circuit plate communicate by standard serial port.
With reference to Fig. 1, provided PSE structural representation in the described POE of the prior art system.
Comprise among Fig. 1: device power supply (DPS) (Device Power), power supply control module (PSE Control), Switch control module (Switch Control), forward process module (MAC), physical layer adapter (Phy) and transformer (Transformer, T).
Wherein, PSE is that POE powers as the power supply unit of POE by Device Power, specifically can control it by PSE Control and whether carry out the POE power supply.Meanwhile, DevicePower also will be as the power supply of PSE self, for PSE Control, Switch Control and MAC etc. power.
Therefore, no matter whether Device Power is the POE power supply, and whether PSE Control works, and all is in all the time power-up state in such cases, can accelerate the aging of part such as power module, reduces useful life.The power supply unit of existing POE does not have management control unified, system for the modules in the equipment, all is in power-up state so that whether each module works, and reduces the useful life of part in each module.
Summary of the invention
The application provides the power supply unit of a kind of POE, does not have management control unified, system with the power supply unit that solves original POE for the modules in the equipment, consume electric power, and can accelerate the aging problem of part.
Accordingly, the application also provides the method for the power supply unit power supply of a kind of POE of control.
In order to address the above problem, the application discloses the power supply unit of a kind of POE, comprising:
Device power supply (DPS) is used to each control module to power, and wherein, described control module comprises device control module and power supply control module;
Power supply is used to POE to power;
Device control module, when being used for beginning power for POE, by control signal connection power supply, the connection of the path of control appliance power supply and power supply control module, the transmit port enable command is to the power supply control module; When being broken as the POE power supply, disconnect power supply by control signal, the disconnection of the path of control appliance power supply and power supply control module, transmit port goes enable command to the power supply control module;
The power supply control module, for the port enable command of receiving equipment control module, and the configured port startup, making power supply is the POE power supply; The port of receiving equipment control module goes enable command, and the configured port disconnection, makes power supply be broken as the POE power supply.
In the embodiment of the present application, described power supply unit also comprises: switch, described switch are disposed on the path of device power supply (DPS) and power supply control module; Wherein, during turn on-switch, the path of power supply control module and device power supply (DPS) is connected, and during cut-off switch, the path of power supply control module and device power supply (DPS) disconnects; Described device control module, concrete when being used for beginning power for POE, by the control turn on-switch, with the path of connection power supply control module and device power supply (DPS); When being broken as the POE power supply, by the control cut-off switch, to disconnect the path of power supply control module and device power supply (DPS).
In the embodiment of the present application, described control module also comprises: energy supply control module, and when being used for beginning power for POE, the first instruction of receiving equipment control module transmission, turn on-switch; The second instruction of receiving equipment control module transmits control signal to connect power supply; And, when being broken as the POE power supply, the 3rd instruction of receiving equipment control module, the disconnection power supply transmits control signal; The 4th instruction that the receiving equipment control module sends, cut-off switch.
In the embodiment of the present application, device control module carries out communication with the power supply control module after also being used for sending the first instruction, if communication success in Preset Time, then the overall situation enables successfully and record, otherwise the overall situation enables failure and record.
In the embodiment of the present application, the power supply control module also is used for sending confirmation to the power supply control module after the startup of configured port; And, after the disconnection of configured port, send confirmation to the power supply control module; Device control module also is used for receiving affirmation information and the record that the power supply control module sends.
Accordingly, the application also provides the method for the power supply unit power supply of a kind of POE of control, and the power supply unit of described POE comprises: device power supply (DPS), power supply, device control module and power supply control module, and described method comprises:
When beginning to power for POE, described device control module is connected the path of powering for described power supply control module, and, connect described power supply by control signal;
Described device control module transmit port enable command is given described power supply control module;
Described power supply control module starts according to the port enable command configured port that receives, and making described power supply is the POE power supply;
Finish when being broken as the POE power supply for POE power supply, described device control module transmit port goes enable command to described power supply control module;
Described power supply control module goes the enable command configured port to disconnect according to the port that receives, and makes described power supply be cut to the POE power supply;
Described device control module disconnects described power supply by control signal, and is broken as the path that described power supply control module is powered.
In the embodiment of the present application, the power supply unit of described POE also comprises: switch and energy supply control module; Described device control module is connected the path of powering for described power supply control module, and, connect described power supply by control signal, comprising: described device control module sends the first instruction to described energy supply control module; Described energy supply control module is connected turn on-switch, connects the path of powering for described power supply control module; Described device control module sends the second instruction to described energy supply control module; Described energy supply control module transmits control signal, and connects described power supply.
In the embodiment of the present application, the power supply unit of described POE also comprises: switch and energy supply control module; Described device control module disconnects described power supply by control signal, and is broken as the path that described power supply control module is powered, and comprising: described device control module sends the 3rd instruction to described energy supply control module; Described energy supply control module transmits control signal, and disconnects power supply; Described device control module sends the 4th instruction to described energy supply control module; Described energy supply control module is connected cut-off switch, is broken as the path that described power supply control module is powered.
In the embodiment of the present application, described device control module is connected after the path of powering for described power supply control module, perhaps, described device control module is broken as after the path that described power supply control module powers, and also comprises: described power supply control module sends confirmation to described device control module; Device control module confirmation of receipt information and record.
In the embodiment of the present application, described device control module sends the first instruction to after the described energy supply control module, also comprise: described device control module and power supply control module are carried out communication, if communication success in Preset Time, then the overall situation enables successfully and record, otherwise the overall situation enables failure and record.
Compared with prior art, the application comprises following advantage:
At first, comprise two power supplys in the power supply unit of POE, wherein device power supply (DPS) is each control module power supply, and power supply is the POE power supply.Therefore can when not powering for POE, disconnect power supply, and the path that disconnects power supply control module and device power supply (DPS); And beginning to connect again power supply when powering for POE, and the path of power supply control module and device power supply (DPS).Thereby realize management control unified to each module in the power supply unit of POE, system, and then reduced consumption to electric energy in power supply and the device power supply (DPS), and reduced the power-on time of power supply and power supply control module, prolonged the useful life of power supply, device power supply (DPS) and power supply control module.Wherein, power supply control module connection device power supply not when not powering for POE, namely the power supply control module does not power on, and can reduce loss to part in the power supply control module, reduce the degree of aging of part.
Secondly, control module can also comprise energy supply control module among the application, energy supply control module can disconnect or turn on-switch, and to be switched on or switched off the path of power supply control module and device power supply (DPS), energy supply control module can also transmit control signal and be switched on or switched off power supply.This moment, the Main Function of device control module was execution for integral body control POE function of supplying power, thereby made the division of labor of each module of switch clearer and more definite, thereby guaranteed to realize switch function and POE function of supplying power in the switch.
Description of drawings
Fig. 1 is PSE structural representation in the described POE of the prior art system;
Fig. 2 is the structural representation of the power supply unit of the described a kind of POE of the embodiment of the present application;
Fig. 3 is the method for supplying power to flow chart of the power supply unit of the described a kind of POE of the embodiment of the present application;
Fig. 4 is the power-off method flow chart of the power supply unit of the described a kind of POE of the embodiment of the present application;
Fig. 5 is the power supply unit structural representation of the described the first POE of the optional embodiment of the application;
Fig. 6 is the power supply unit structural representation of the described the second POE of the optional embodiment of the application.
Embodiment
For above-mentioned purpose, the feature and advantage that make the application can become apparent more, below in conjunction with the drawings and specific embodiments the application is described in further detail.
The power supply unit of POE of the prior art is PSE, only comprises a power supply and be Device Power(as shown in Figure 1).PSE is as the power supply unit of POE, and when powering for POE, DevicePower is exactly the power supply for the POE power supply.
Device Power is that the POE power supply is to carry out by the control of PSE Control and Switch Control, and PSE Control and Switch Control also need power supply to work, so DevicePower also will be as the device power supply (DPS) of PSE Control and Switch Control.Simultaneously, DevicePower also will be the module for power supply such as MAC.
POE power supply unit complete machine uses large power supply, and rated power is 150W-1000W usually, and the no-load loss of power supply (inherent loss) is generally the 7-15% of power supply rated power, and take typical 360W power supply as example, no-load loss can reach 20W-36W.
When POE equipment does not carry out the POE power supply, carry the no-load loss of power supply and the power consumption of PSE Control module on the body, become unnecessary waste, and accelerated the aging of equipment.
Adopt respectively the switch have the switch of POE function and not have a POE function to test, no-load loss more separately, specifically join being shown in Table 1:
Table 1
Wherein, 28P is that 28 ports are without POE function switch; 28P-PWR 360W is for providing 28 port PO E switches of 360WPSE power supply.By table 1 as can be known, under the no-load condition, 28P-PWR 360W manys 32W than the no-load loss of 28P.
This is owing in the prior art power supply is only arranged, i.e. Device Power, and in order to guarantee the normal execution of equipment work, the power supply when Device Power namely is the POE power supply is again the working power of other modules in the equipment.The no-load loss of power unit has substantial connection with rated power supply power, and no-load loss is the 5%--20% of rated power supply power usually.Therefore, even be not the POE power supply in the equipment, large power supply is in power-up state all the time, is very large to the consumption of electric energy.
And, PSE Control is a control module that is used in the POE power supply, when POE does not power, PSE Control also is communicated with power supply all the time, receive the power supply of power supply, therefore PSE Control is in power-up state all the time, and this state can accelerate the aging of each part among the PSE Control, the useful life of reducing equipment.
For above-mentioned problem, the application proposes the power supply unit of a kind of POE, comprises two kinds of power supplys, is respectively device power supply (DPS) (Device Power) and power supply, thereby realizes management control unified to each module in the power supply unit of POE, system.Wherein, power supply only is the POE power supply, therefore when not powering for POE, can disconnect power supply, connects power supply when beginning to power for POE again, thereby has reduced the no-load loss to the power supply of POE; And, when not powering for POE, also can the off device power supply and the path of power supply control module, beginning to connect described path when powering for POE, the power supply control module that makes just powers on when work, thereby has reduced the power supply control module to power consumption again, after the PSE function goes to enable, the related hardware part does not power on, and has slowed down device aging, has increased the useful life of equipment.Specific as follows:
With reference to Fig. 2, provided the structural representation of the power supply unit of the described a kind of POE of the embodiment of the present application.
Comprise among Fig. 2: power supply (PSE Power), power supply control module (PSE Control), device power supply (DPS) (Device Power), device control module (Device Control), forward process module (MAC), physical layer adapter (Phy) and transformer (Transformer, T).
Wherein, PSE Control is connected "---" to connect with Device Power, the path of expression PSE Control and Device Power; Employing with the dotted line of arrow namely "---→ " expression Device Control can control PSE Power, and the path of PSE Control and Device Power.
The application can be applied to provide in the switch of POE function, and wherein, MAC mainly is responsible for the forward process of data message in the switch function, and Phy mainly is responsible for the send and receive of data message physical signalling in the switch.T can close transformer for mat, and the mat that can carry out power supply and data path closes and isolates.Wherein, data path is the data path of switch inside, is made of MAC, PHY and T.
Device power supply (DPS) can be powered for each control module, and wherein, described control module comprises device control module and power supply control module.
Certainly, according to the demand in the actual treatment, device power supply (DPS) can also be powered for other modules in the switches such as MAC, and the application does not do restriction to this.
Power supply is used to POE to power.Can be embodied as the POE power supply by the control of power supply control module in the implementation, concrete control method can be referring to hereinafter discussing.
Among Fig. 2, be POE when power supply at power supply, PSE+ and PSE-can export the POE power supply to transformer, and transformer carries out being transferred to PD equipment by twisted-pair cable again after lotus root closes to the POE power supply, realizes that finally POE powers.
Device control module can be controlled the state of power supply, and is concrete: when beginning power for POE, can connect power supply by control signal, this moment, power supply was in running order, can be prepared as POE and power.When being broken as the POE power supply, device control module also disconnects power supply by control signal, and this moment, power supply was in non operating state, can not power for POE.
Device control module can also be controlled to be the path that the power supply control module is powered, i.e. the path of device power supply (DPS) and power supply control module.Specifically: when beginning to power for POE, can connect the path of device power supply (DPS) and power supply control module, this moment power supply control module accepting device power supply power supply, can carry out work; Be broken as POE when power supply, device control module also can the off device power supply and the path of power supply control module, and this moment, the power supply control module was not connected device power supply (DPS), cannot carry out work.
Device control module can also be controlled the power supply control module, and is concrete: when beginning to power for POE, can the transmit port enable command to the power supply control module; When being broken as the POE power supply, transmit port goes enable command to the power supply control module.
Whether the power supply control module can be controlled power supply is the POE power supply.In the implementation, the power supply control module can start by configured port after receiving the port enable command of device control module, and what make power supply is that POE powers.
The power supply control module can disconnect by configured port after the port that receives device control module goes enable command, makes power supply be broken as the POE power supply.
In the actual treatment, in the power supply unit of POE described in the embodiment of the present application, power supply only the time is just connected in power supply, so power supply can't be in power-up state all the time, thereby has reduced the power-on time of power supply, has delayed the aging of power supply.
And when not powering for POE, the power supply control module is connection device power supply not, and namely the power supply control module does not power on, and has so just reduced loss to electronic device in the power supply control module, has delayed the degree of aging of electronic device.
Simultaneously, the power supply control module during the connection device power supply, has not reduced the control module of being powered by device power supply (DPS), thereby has reduced the consumption to electric energy in the device power supply (DPS), and has reduced the no-load loss of device power supply (DPS) in the power supply unit of POE.
Therefore, when the power supply unit of POE is powered, can carry out following step:
With reference to Fig. 3, provided the method for supplying power to flow chart of the power supply unit of the described a kind of POE of the embodiment of the present application.
The power supply unit of POE when not powering for POE, for the loss of saving part in power consumption, the reduction equipment, aging, can the off device power supply and the path of power supply control module, and disconnect power supply.
Therefore, when needs carried out the POE power supply, device control module at first can be connected the path of powering for the power supply control module, and namely the path of device power supply (DPS) and power supply control module can be started working the power supply control module.Then, device control module also can be connected power supply by control signal, makes power supply in running order, can be prepared as the POE power supply.
The overall situation that can realize the power supply unit of POE by operation enables, and the described overall situation enables can be understood as the power supply control module is powered on, and can work.Be after the overall situation of the power supply unit of POE enables to finish, finish for the preparation of POE power supply, can take up the power supply into POE.
The power supply control module can be started working, and power supply in running order after, device control module need to control to realize POE power supply to the power supply control module, therefore can the transmit port enable command to the power supply control module.
After the power supply control module receives the port enable command, can start by configured port, this moment, power supply can be powered for POE.At this moment, can realize that the port of the power supply unit of POE enables, described port enables can be understood as the port open that carries out the POE power supply, can work, and formally begins the power supply for POE.
Can control the transmit port enable command to PSE by device control module and can realize that port enables, in the implementation, the concrete operations of device control module, can be obtained by administrator configurations the opportunity of transmission instructions etc. by man-machine interface.
By said method, so that the power supply that disconnects in order to save electric energy, and the path of device power supply (DPS) and power supply control module, can reclose equally, thereby be embodied as the POE power supply by the control of device control module.
In the embodiment of the present application, the power supply unit of POE can be broken as the POE power supply after finishing as the POE power supply, this moment is in order to save electric energy, to reduce consumption etc., the power supply that will again disconnect, and the path of device power supply (DPS) and power supply control module, concrete operations are as follows:
With reference to Fig. 4, provided the power-off method flow chart of the power supply unit of the described a kind of POE of the embodiment of the present application.
When equipment is being powered for POE, owing to some reasons can stop the POE power supply, as After Hours, wireless access device PD end-of-job in the office building.At this moment, device control module will stop power supply power supply by control power supply control module, therefore can go enable command to the power supply control module by transmit port.
The power supply control module receives port that device control module sends go enable command after, can configured port PSE function disconnect, after all of the port PSE function disconnected, power supply was disconnected, and stops power supply.
The power supply unit of POE is not when powering for POE, and for the loss of saving part in power consumption, the reduction equipment, aging, device control module also can disconnect power supply, and is broken as the power supply control module and powers.
Therefore, device control module can disconnect power supply by control signal, and this moment, power supply was in non operating state.Device control module also can the off device power supply and the path of power supply control module, and this moment, the power supply control module was not connected device power supply (DPS), did not namely power on, and cannot carry out work.
The power supply unit of POE is not when powering, and power supply is in non operating state, and the power supply control module does not power on, and this kind state can last till and need to begin as till the POE power supply, again execution graph 3 described flow processs.
With reference to Fig. 5, provided the power supply unit structural representation of the described the first POE of the optional embodiment of the application.
Optionally, also comprise switch (Switch) in the described power supply unit, described switch is disposed on the path of device power supply (DPS) and power supply control module, as shown in Figure 4.When cut-off switch, the path of power supply control module and device power supply (DPS) disconnects; When turn on-switch, the path of power supply control module and device power supply (DPS) is connected.
Therefore, device control module just can by the connection of control switch, be connected the path of power supply control module and device power supply (DPS); And the disconnection by control switch, disconnect the path of power supply control module and device power supply (DPS).
Wherein, cut-off switch is the state of instigating switch to be in to open, and the circuit of switch both sides is not communicated with; And turn on-switch is to instigate switch to be in closed state, makes the circuit communication of switch both sides.
With reference to Fig. 6, provided the power supply unit structural representation of the described the second POE of the optional embodiment of the application.
Because device control module except power supply is controlled to POE, can also be managed the switch forwarding capability by keyholed back plate processed, in order being that equipment is more stable, not to affect the function of switch, so can also to comprise in the control module: energy supply control module.
This moment, the Main Function of device control module was the execution of controlling the POE function of supplying power for integral body, and the work of details, for example whether power supply is connected, whether the path of power supply control module and device power supply (DPS) is connected, can be carried out by energy supply control module, thereby make the division of labor of each module of switch clearer and more definite, thereby guarantee to realize switch function and POE function of supplying power in the switch.
Wherein, the instruction that energy supply control module can the receiving equipment control module, and according to described instruction switch and power supply are controlled, specifically comprise:
When 1) beginning to power for POE
After the first instruction that energy supply control module receiving equipment control module sends, can turn on-switch, thus connect the path of power supply control module and device power supply (DPS);
After the second instruction that energy supply control module receiving equipment control module sends, the startup power supply can transmit control signal;
When 2) being broken as the POE power supply
After the 3rd instruction that energy supply control module receiving equipment control module sends, the disconnection power supply can transmit control signal;
After the 4th instruction that energy supply control module receiving equipment control module sends, can cut-off switch, thus disconnect the path of power supply control module and device power supply (DPS).
The Main Function of device control module is the execution of whole control POE function of supplying power, therefore it not only needs to send instruction to other control module, such as the power supply control module, energy supply control module and for example, that these control modules realize that the overall situation enables or port enables, also need to confirm the instruction practice condition, namely whether the overall situation enables to enable successful with port.Specifically comprise:
When the power supply connection, and the connection of the path of power supply control module and device power supply (DPS), at this moment, prepare for the hardware device of POE power supply, can think that having finished the overall situation enables.After the overall situation enables successfully, device control module is follow-up also to need control to realize that port enables, at this moment, although the relevant instruction that device control module has sent is carried out the overall situation and is enabled, but it does not also know whether the overall situation enables successful, therefore need to by carrying out communication with the power supply control module, confirm whether the overall situation enables successful.
Therefore, after device control module sent the first instruction, energy supply control module meeting turn on-switch was connected the path of power supply control module and device power supply (DPS).After this, device control module can be attempted carrying out communication with the power supply control module, if communication success in Preset Time confirm that then the overall situation enables successfully and record, otherwise the overall situation enables failure and record.
After the overall situation enabled successfully, the hardware device that device control module just can be confirmed as the POE power supply was ready to complete, and therefore can carry out follow-up associative operation of powering, such as the transmit port enable command.
Optionally, the power supply control module can send confirmation to device control module after configured port starts, device control module is after the affirmation information that receives the transmission of power supply control module, can confirm that power supply is being the POE power supply, and can record described confirmation.
The power supply control module is after configured port disconnects, can send confirmation to device control module, device control module can be confirmed that power supply has been broken as the POE power supply, and can record described confirmation after the affirmation information that receives the transmission of power supply control module.
On the basis of above-described embodiment, be understandable that to be broken as POE when power supply, for the loss of saving part in power consumption, the reduction equipment, aging, disconnected power supply, and stopped the power supply to the power supply control module.Therefore, open every hardware state when powering into POE for device interrupt, revert to the POE power supply, specifically may further comprise the steps:
1) overall situation enables
Device control module at first sends the first instruction to energy supply control module, and energy supply control module receives after the first instruction can turn on-switch, connects the path of power supply control module and device power supply (DPS).At this moment, the power supply control module is accepted power supply, and the power supply control module self is finished the work of startup after the energising.
During this period, device control module is constantly attempted and the power supply control module communication, and in Preset Time, in 20s, if the communication success, then the overall situation enables successfully, and the overall state that enables of record.If communication is unsuccessful, then the overall situation enables unsuccessfully, namely is in the overall situation this moment and removes the state and the record that enable.Certainly, if the overall situation enables unsuccessfully, the follow-up overall situation that can re-start enables, and the application does not do restriction to this.
If ports having enables the POE function of supplying power, device control module sends the second instruction to energy supply control module, after energy supply control module receives the second instruction, can transmit control signal, connect power supply, make power supply in running order, can be prepared as the POE power supply.
After the overall situation enabled successfully, the hardware device that device control module just can be confirmed as the POE power supply was ready to complete.
2) port enables
If enable port POE function of supplying power first, device control module sends the second instruction to energy supply control module, after energy supply control module receives the second instruction, can transmit control signal, connect power supply, make power supply in running order, can be prepared as the POE power supply.
Device control module is to power supply control module transmit port enable command, after the power supply control module receives the port enable command, and hardware state that can the configured port enable command, its enable port POE function of supplying power, this moment, power supply can be powered for POE.
Then, the power supply control module can send confirmation to device control module, after device control module receives the confirmation information, can confirm the port arrangement success, and record the configuration that port enables.
Method of supplying power to the power supply unit of POE in above-described embodiment is discussed, and after power supply is finished, also can cut off the power supply, and lower mask body is discussed the power-off method of the power supply unit of described POE:
1) port goes to enable;
Stop the POE power supply, device control module can go enable command to power supply control module transmit port, the power supply control module receives port go enable command after, can configured port remove the hardware state that enables, disconnect port POE function of supplying power, then send confirmation to device control module.
After device control module receives the confirmation information, can confirm that port goes to enable successfully, and the record port goes the configuration that enables.
Device control module can send the 3rd instruction to energy supply control module after confirming to disconnect whole port PO E functions, after energy supply control module receives the 3rd instruction, can transmit control signal, and disconnects power supply.
2) overall situation goes to enable
Device control module sends the 3rd instruction to energy supply control module, after energy supply control module receives the 3rd instruction, can transmit control signal, and disconnects power supply.
Extended meeting sends the 4th instruction to energy supply control module behind the device control module, after energy supply control module receives the 4th instruction, the meeting cut-off switch, disconnect the path of power supply control module and device power supply (DPS), namely cut off the power supply to the power supply control module, disconnected the hardware device of powering for POE this moment, goes to enable thereby finished the overall situation, can record the overall situation and remove the state that enables.
By above-mentioned method, just finished the outage work of the power supply unit of POE, disconnected power supply, and stopped the power supply to the power supply control module, thereby reduced the consumption of power supply and device power supply (DPS), and reduced loss to electronic device in the power supply control module, delayed the aging of electronic device.
Wherein, the method that the energy supply control module control switch is switched on or switched off has a lot, and such as sending control information etc., the application is not construed as limiting this.
Can be applied in the switch integrated POE function in switch among the application.Then during overall enabled state, can control whole switch whether the PSE function is provided, make when deenergizing state when being in the overall situation, not allow any port to carry out the PSE power supply.
The hardware state that carries out the POE power supply is provided when port enables, when port goes to enable, cannot have carried out the POE power supply.Enable and the overall situation when enabling when port among the application, can carry out the POE power supply.
Always the above comprises two power supplys in the power supply unit of POE, and wherein device power supply (DPS) is each control module power supply, and power supply is the POE power supply.Therefore can when not powering for POE, disconnect power supply, and the path that disconnects power supply control module and device power supply (DPS); And beginning to connect again power supply when powering for POE, and the path of power supply control module and device power supply (DPS).Thereby realize management control unified to each module in the power supply unit of POE, system, and then reduced consumption to electric energy in power supply and the device power supply (DPS), and reduced the power-on time of power supply and power supply control module, prolonged the useful life of power supply, device power supply (DPS) and power supply control module.Wherein, power supply control module connection device power supply not when not powering for POE, namely the power supply control module does not power on, and can reduce loss to part in the power supply control module, reduce the degree of aging of part.
Secondly, control module can also comprise energy supply control module among the application, energy supply control module can disconnect or turn on-switch, and to be switched on or switched off the path of power supply control module and device power supply (DPS), energy supply control module can also transmit control signal and be switched on or switched off power supply.This moment, the Main Function of device control module was execution for integral body control POE function of supplying power, thereby made the division of labor of each module of switch clearer and more definite, thereby guaranteed to realize switch function and POE function of supplying power in the switch.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
Also need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby not only comprise those key elements so that comprise process, method, commodity or the equipment of a series of key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, commodity or equipment.Do not having in the situation of more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, commodity or the equipment that comprises described key element and also have other identical element.
More than the power supply unit of a kind of POE that the application is provided, with a kind of method of controlling the power supply unit power supply of POE, be described in detail, used specific case herein the application's principle and execution mode are set forth, the explanation of above embodiment just is used for helping to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, the thought according to the application all will change in specific embodiments and applications, and in sum, this description should not be construed as the restriction to the application.
Claims (10)
1. the power supply unit of a POE is characterized in that, comprising:
Device power supply (DPS) is used to each control module to power, and wherein, described control module comprises device control module and power supply control module;
Power supply is used to POE to power;
Device control module, when being used for beginning power for POE, by control signal connection power supply, the connection of the path of control appliance power supply and power supply control module, the transmit port enable command is to the power supply control module; When being broken as the POE power supply, disconnect power supply by control signal, the disconnection of the path of control appliance power supply and power supply control module, transmit port goes enable command to the power supply control module;
The power supply control module, for the port enable command of receiving equipment control module, and the configured port startup, making power supply is the POE power supply; The port of receiving equipment control module goes enable command, and the configured port disconnection, makes power supply be broken as the POE power supply.
2. power supply unit according to claim 1 is characterized in that, also comprises: switch, described switch are disposed on the path of device power supply (DPS) and power supply control module; Wherein, during turn on-switch, the path of power supply control module and device power supply (DPS) is connected, and during cut-off switch, the path of power supply control module and device power supply (DPS) disconnects;
Described device control module, concrete when being used for beginning power for POE, by the control turn on-switch, with the path of connection power supply control module and device power supply (DPS); When being broken as the POE power supply, by the control cut-off switch, to disconnect the path of power supply control module and device power supply (DPS).
3. power supply unit according to claim 2 is characterized in that, described control module also comprises: energy supply control module, and when being used for beginning power for POE, the first instruction of receiving equipment control module transmission, turn on-switch; The second instruction of receiving equipment control module transmits control signal to connect power supply; And, when being broken as the POE power supply, the 3rd instruction of receiving equipment control module, the disconnection power supply transmits control signal; The 4th instruction that the receiving equipment control module sends, cut-off switch.
4. power supply unit according to claim 3 is characterized in that:
Device control module carries out communication with the power supply control module after also being used for sending the first instruction, if communication success in Preset Time, then the overall situation enables successfully and record, otherwise the overall situation enables failure and record.
5. power supply unit according to claim 1 is characterized in that:
The power supply control module also is used for sending confirmation to the power supply control module after the startup of configured port; And, after the disconnection of configured port, send confirmation to the power supply control module;
Device control module also is used for receiving affirmation information and the record that the power supply control module sends.
6. the method for a power supply unit power supply of controlling POE is characterized in that the power supply unit of described POE comprises: device power supply (DPS), power supply, device control module and power supply control module, and described method comprises:
When beginning to power for POE, described device control module is connected the path of powering for described power supply control module, and, connect described power supply by control signal;
Described device control module transmit port enable command is given described power supply control module;
Described power supply control module starts according to the port enable command configured port that receives, and making described power supply is the POE power supply;
Finish when being broken as the POE power supply for POE power supply, described device control module transmit port goes enable command to described power supply control module;
Described power supply control module goes the enable command configured port to disconnect according to the port that receives, and makes described power supply be cut to the POE power supply;
Described device control module disconnects described power supply by control signal, and is broken as the path that described power supply control module is powered.
7. method according to claim 6 is characterized in that, the power supply unit of described POE also comprises: switch and energy supply control module;
Described device control module is connected the path of powering for described power supply control module, and, connect described power supply by control signal, comprising:
Described device control module sends the first instruction to described energy supply control module;
Described energy supply control module is connected turn on-switch, connects the path of powering for described power supply control module;
Described device control module sends the second instruction to described energy supply control module;
Described energy supply control module transmits control signal, and connects described power supply.
8. method according to claim 6 is characterized in that, the power supply unit of described POE also comprises: switch and energy supply control module;
Described device control module disconnects described power supply by control signal, and is broken as the path that described power supply control module is powered, and comprising:
Described device control module sends the 3rd instruction to described energy supply control module;
Described energy supply control module transmits control signal, and disconnects power supply;
Described device control module sends the 4th instruction to described energy supply control module;
Described energy supply control module is connected cut-off switch, is broken as the path that described power supply control module is powered.
9. method according to claim 6, it is characterized in that described device control module is connected after the path of powering for described power supply control module, perhaps, described device control module is broken as after the path that described power supply control module powers, and also comprises:
Described power supply control module sends confirmation to described device control module;
Device control module confirmation of receipt information and record.
10. method according to claim 7 is characterized in that, described device control module sends the first instruction to after the described energy supply control module, also comprises:
Described device control module and power supply control module are carried out communication, if communication success in Preset Time, then the overall situation enables successfully and record, otherwise the overall situation enables failure and record.
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