CN102938699A - Method and device for balanced power supply - Google Patents
Method and device for balanced power supply Download PDFInfo
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- CN102938699A CN102938699A CN2011102325678A CN201110232567A CN102938699A CN 102938699 A CN102938699 A CN 102938699A CN 2011102325678 A CN2011102325678 A CN 2011102325678A CN 201110232567 A CN201110232567 A CN 201110232567A CN 102938699 A CN102938699 A CN 102938699A
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Abstract
The invention discloses a method and a device for balanced power supply. The method comprises the steps of periodically detecting the power supply time of a plurality of power supply ports of a multi-port Ethernet power supply device according to the preset detection time; determining the power supply port with the shortest power supply time in the plurality of power supply ports; and using the determined power supply port to supply power to the multi-port Ethernet power supply device. By the aid of the method and the device, balanced power supply of the multi-port Ethernet power supply device can be achieved simply and conveniently.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of balanced power supply method and device.
Background technology
In existing ethernet device, much adopt Power over Ethernet (PoE) technology, utilize existing network 5 classes (CAT-5) data cable transmission DC power supply, in transmission of signal, also power supply is sent to power consumption equipment (PD).In the PoE system, provide the equipment of power supply power supply unit (PSE) for PD.
Existing PD equipment often has a plurality of PSE for its power supply, and for the power supply of balanced each PSE, the method for available technology adopting current-sharing often needs complicated hardware circuit, and hardware cost is high.
Summary of the invention
, hardware cost high problem complicated for balanced power supply method circuit in the correlation technique and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of balanced power supply method and device, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of balanced power supply method.
According to balanced power supply method of the present invention, comprising: according to predefined detection time, periodically detect the power-on time of a plurality of power supply ports of multiport Power over Ethernet equipment; In a plurality of power supply ports, determine the power supply port of power-on time minimum; Use the power supply port of determining that multiport Power over Ethernet equipment is powered.
Preferably, before the power supply port of use determining was powered to multiport Power over Ethernet equipment, said method also comprised: judge that current is whether the continuous power-on time of power supply port of multiport Power over Ethernet power devices is greater than predefined switching time; If judged result is yes, then carry out the operation of using definite power supply port that multiport Power over Ethernet equipment is powered.
Preferably, if the determination result is NO, the then operation of the power-on time of a plurality of power supply ports of execution cycle property detection multiport Power over Ethernet equipment.
Preferably, before whether the continuous power-on time of judging current power supply port for multiport Power over Ethernet power devices is greater than predefined switching time, said method also comprises: when predefined detection time at every turn then, accumulation calculating predefined detection time, and will add up and as continuous power-on time.
Preferably, before the power-on time of a plurality of power supply ports that periodically detect multiport Power over Ethernet equipment, said method also comprises: when multiport Power over Ethernet device power, the power-on time of a plurality of power supply ports is initialized as an identical value.
To achieve these goals, according to a further aspect in the invention, provide a kind of balanced power supply device.
According to balanced power supply device of the present invention, comprising: detection module, be used for according to predefined detection time, periodically detect the power-on time of a plurality of power supply ports of multiport Power over Ethernet equipment; Determination module is used at a plurality of power supply ports, determines the power supply port of power-on time minimum; Supply module is used for using the power supply port of determining that multiport Power over Ethernet equipment is powered.
Preferably, said apparatus also comprises: judge module is used for judging that whether the continuous power-on time of current power supply port for multiport Power over Ethernet power devices is greater than predefined switching time; The first Executive Module is used in the situation that judged result is yes, carries out the operation of using definite power supply port that multiport Power over Ethernet equipment is powered.
Preferably, said apparatus also comprises: the second Executive Module is used in the situation that the determination result is NO the operation of the power-on time of a plurality of power supply ports of execution cycle property detection multiport Power over Ethernet equipment.
Preferably, said apparatus also comprises: computing module, be used for when predefined detection time at every turn then, accumulation calculating predefined detection time, and will add up and the continuous power-on time of conduct.
Preferably, said apparatus also comprises: initialization module, be used for when multiport Power over Ethernet device power, and the power-on time of a plurality of power supply ports is initialized as an identical value.
By the present invention, the power supply port of cycle detection power-on time minimum, and switch to this power supply port and power, can realize simply, easily the balanced power supply to multiport Power over Ethernet equipment.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is power consumption equipment (PD) according to the embodiment of the invention and the schematic diagram of power supply unit (PSE);
Fig. 2 is the flow chart according to the balanced power supply method of the embodiment of the invention;
Fig. 3 is power consumption equipment (PD) the balanced power supply method flow diagram according to the embodiment of the invention;
Fig. 4 is the structured flowchart according to the balanced power supply device of the embodiment of the invention;
Fig. 5 is the structured flowchart one of according to the preferred embodiment of the invention balanced power supply device;
Fig. 6 is the structured flowchart two of according to the preferred embodiment of the invention balanced power supply device.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The invention provides a kind of balanced power supply method.Fig. 1 is power consumption equipment (PD) according to the embodiment of the invention and the schematic diagram of power supply unit (PSE), as shown in Figure 1, and PSE end 1, PSE end 2 ... PSE end N links to each other with the PD end by ethernet line (CAT-5).
Wherein, PD end equipment can be an independently equipment, also can be integrated in ethernet device inside.
Fig. 2 is the flow chart according to the balanced power supply method of the embodiment of the invention, comprises that following step S202 is to step S206.
Step S202 according to predefined detection time, periodically detects the power-on time of a plurality of power supply ports of multiport Power over Ethernet equipment.
Step S204 in above-mentioned a plurality of power supply ports, determines the power supply port of described power-on time minimum.
Step S206 uses above-mentioned definite power supply port that described multiport Power over Ethernet equipment is powered.
Balanced power supply method circuit in the correlation technique is complicated, hardware cost is high.In the embodiment of the invention, by the power supply port of cycle detection power-on time minimum, and switch to this power supply port and power, can realize simply, easily the balanced power supply to multiport Power over Ethernet equipment.
Preferably, state in the use before definite power supply port powers to multiport Power over Ethernet equipment, said method also comprises: judge that whether the continuous power-on time of current power supply port for multiport Power over Ethernet power devices is greater than predefined switching time; If judged result is yes, then carry out the operation of using definite power supply port that multiport Power over Ethernet equipment is powered.
Consider that the part multiport Power over Ethernet equipment port switching frequency of not supporting to power is too high, this preferred embodiment has increased switching time, when namely only having the continuous power-on time of current power supply port to surpass predefined switching time, just allow to carry out the switching of the port of powering.Like this, can guarantee on the basis of balanced power supply, further guarantee multiport Power over Ethernet equipment continuously, stably power supply.
In addition, if the continuous power-on time of current power supply port does not surpass predefined switching time, then the present invention can process according to any processing mode of the prior art, or wait for some regular times carry out again the power supply port switching, or return and continue execution cycle property detection (following preferred embodiment has just been described this situation), too high with the port switching frequency of avoiding powering.
Preferably, if the determination result is NO, the then operation of the power-on time of a plurality of power supply ports of execution cycle property detection multiport Power over Ethernet equipment.The continuous power-on time that this preferred embodiment has been described at current power supply port does not surpass in the situation of predefined switching time, returns and continues the detection of execution cycle property.Like this, for a certain specific multiport Power over Ethernet equipment, only setting one " switching time " can solve power supply port switching frequency too high problem, namely, than waiting for that some regular times carry out the scheme of the switching of power supply port (needing at least to set " switching time " and " stand-by period " two parameters) again, this preferred embodiment can be more efficient, stablize.
Preferably, before whether the continuous power-on time of judging current power supply port for multiport Power over Ethernet power devices is greater than predefined switching time, said method also comprises: when predefined detection time at every turn then, accumulation calculating predefined detection time, and will add up and as continuous power-on time.This preferred embodiment provides a kind of computational methods of continuous power-on time, and the method is in predefined detection time of each direct accumulation calculating then, and it is simple, reliable that computational methods realize.
Preferably, before the power-on time of a plurality of power supply ports that periodically detect multiport Power over Ethernet equipment, said method also comprises: when multiport Power over Ethernet device power, the power-on time of a plurality of power supply ports is initialized as an identical value.This preferred embodiment when multiport Power over Ethernet device power, each power supply port of initialization, identical with the initial value that guarantees its power-on time, thereby the power-on time that can guarantee in follow-up use each power supply port is definitely balanced.Need to prove, above-mentioned identical value preferably can be zero.
Be described in detail below in conjunction with the implementation procedure of example to the embodiment of the invention.
Fig. 3 is power consumption equipment (PD) the balanced power supply method flow diagram according to the embodiment of the invention, as shown in Figure 3, comprises that following step S302 is to step S312.
Step S302, first PSE end X powers on, so that the normal operation of PD end equipment.
Step S304, the PSE power-on time of PD end initialization all of the port is 0, and current power supply port curPort is arranged to X.
Step S306, latent period time T 1.
Step S308, the power-on time of the PSE end of current power supply port curPort increases T1.
Step S310, if the continuous power-on time of the PSE of current power supply port curPort end＞switching cycle time T 2, execution in step S312 then, otherwise execution in step S306.
Step S312, the PSE that switches to minimum power-on time holds Y (at line cap), and current power supply port curPort is arranged to Y, continues execution in step S306.
By the above embodiment of the present invention, power consumption equipment (PD) need not to increase the additional hardware facility, just can realize the balanced power supply of multiport PSE, thereby has simplified the device hardware design, has reduced equipment cost.
Need to prove, can in the computer system such as one group of computer executable instructions, carry out in the step shown in the flow chart of accompanying drawing, and, although there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
The embodiment of the invention provides a kind of device of balanced power supply, and this balanced power supply device can be used for realizing above-mentioned balanced power supply method.Fig. 4 is the structured flowchart according to the balanced power supply device of the embodiment of the invention, as shown in Figure 4, comprises detection module 41, determination module 42 and supply module 43.The below is described in detail its structure.
Detection module 41 was used for according to predefined detection time, periodically detected the power-on time of a plurality of power supply ports of multiport Power over Ethernet equipment; Determination module 42 is connected to detection module 41, is used at a plurality of power supply ports, determines the power supply port of the power-on time minimum that detection module 41 detects; Supply module 43 is connected to determination module 42, and the power supply port that is used for using determination module 42 to determine is powered to multiport Power over Ethernet equipment.
Preferably, said apparatus also comprises judge module 44, the first Executive Module 45 and the second Executive Module 46.Below in conjunction with Fig. 5 its structure is described in detail.
Judge module 44 is used for judging that whether the continuous power-on time of current power supply port for multiport Power over Ethernet power devices is greater than predefined switching time; The first Executive Module 45 is connected to judge module 44, is used in the situation that judge module 44 judged results are yes, carries out the operation that supply module 43 is powered.The second Executive Module 46 is connected to judge module 44, be used in the situation that judge module 44 the determination result is NO, carry out the operation that detection module 41 periodically detects.
Preferably, said apparatus also comprises computing module 47.Below in conjunction with Fig. 6 its structure is described in detail.
Computing module 47 is connected to judge module 44, be used for when predefined detection time at every turn then, accumulation calculating predefined detection time, and will add up and the continuous power-on time of conduct, judge for judge module 44.
Need to prove, the balanced power supply device of describing among the device embodiment is corresponding to above-mentioned embodiment of the method, and its concrete implementation procedure had been carried out detailed description in embodiment of the method, do not repeat them here.
In sum, according to the abovementioned embodiments of the present invention, a kind of balanced power supply method and device are provided.By the present invention, the power supply port of cycle detection power-on time minimum, and switch to this power supply port and power, can realize simply, easily the balanced power supply to multiport Power over Ethernet equipment.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a balanced power supply method is characterized in that, comprising:
According to predefined detection time, periodically detect the power-on time of a plurality of power supply ports of multiport Power over Ethernet equipment;
In described a plurality of power supply ports, determine the power supply port of described power-on time minimum;
Use described definite power supply port that described multiport Power over Ethernet equipment is powered.
2. method according to claim 1 is characterized in that, before the described definite power supply port of use was powered to described multiport Power over Ethernet equipment, described method also comprised:
Judge that whether the continuous power-on time of current power supply port for described multiport Power over Ethernet power devices is greater than predefined switching time;
If judged result is yes, then carry out the operation of using described definite power supply port that described multiport Power over Ethernet equipment is powered.
3. method according to claim 2 is characterized in that, if the determination result is NO, and the then operation of the power-on time of a plurality of power supply ports of execution cycle property detection multiport Power over Ethernet equipment.
4. method according to claim 2, it is characterized in that, before whether the continuous power-on time of judging current power supply port for described multiport Power over Ethernet power devices is greater than predefined switching time, described method also comprises: when described predefined detection time at every turn then, accumulation calculating described predefined detection time, and will add up and as described continuous power-on time.
5. each described method in 4 according to claim 1, it is characterized in that, before the power-on time of a plurality of power supply ports that periodically detect multiport Power over Ethernet equipment, described method also comprises: when described multiport Power over Ethernet device power, the power-on time of described a plurality of power supply ports is initialized as an identical value.
6. a balanced power supply device is characterized in that, comprising:
Detection module was used for according to predefined detection time, periodically detected the power-on time of a plurality of power supply ports of multiport Power over Ethernet equipment;
Determination module is used at described a plurality of power supply ports, determines the power supply port of described power-on time minimum;
Supply module is used for using described definite power supply port that described multiport Power over Ethernet equipment is powered.
7. device according to claim 6 is characterized in that, also comprises:
Judge module is used for judging that whether the continuous power-on time of current power supply port for described multiport Power over Ethernet power devices is greater than predefined switching time;
The first Executive Module is used in the situation that judged result is yes, carries out the operation of using described definite power supply port that described multiport Power over Ethernet equipment is powered.
8. device according to claim 7 is characterized in that, also comprises: the second Executive Module is used in the situation that the determination result is NO the operation of the power-on time of a plurality of power supply ports of execution cycle property detection multiport Power over Ethernet equipment.
9. device according to claim 7 is characterized in that, also comprises: computing module, be used for when described predefined detection time at every turn then, accumulation calculating described predefined detection time, and will add up and as described continuous power-on time.
10. each described device in 9 according to claim 6 is characterized in that, also comprises: initialization module, be used for when described multiport Power over Ethernet device power, and the power-on time of described a plurality of power supply ports is initialized as an identical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110232567.8A CN102938699B (en) | 2011-08-15 | 2011-08-15 | Balanced power supply method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110232567.8A CN102938699B (en) | 2011-08-15 | 2011-08-15 | Balanced power supply method and device |
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| CN102938699A true CN102938699A (en) | 2013-02-20 |
| CN102938699B CN102938699B (en) | 2018-03-16 |
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| CN201110232567.8A Expired - Fee Related CN102938699B (en) | 2011-08-15 | 2011-08-15 | Balanced power supply method and device |
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| US10474179B2 (en) | 2014-07-24 | 2019-11-12 | Zte Corporation | Power supply control device and method for communication network |
| CN112039209A (en) * | 2020-09-04 | 2020-12-04 | 王辉 | Outdoor energy source double-backup and storage battery charging-discharging switching monitoring device |
| CN113363986A (en) * | 2020-03-06 | 2021-09-07 | 瑞昱半导体股份有限公司 | Power supply system for power over Ethernet and power supply method thereof |
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| CN112039209A (en) * | 2020-09-04 | 2020-12-04 | 王辉 | Outdoor energy source double-backup and storage battery charging-discharging switching monitoring device |
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| CN102938699B (en) | 2018-03-16 |
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