CN101788844A - Device and method for saving electricity - Google Patents
Device and method for saving electricity Download PDFInfo
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- CN101788844A CN101788844A CN200910002981A CN200910002981A CN101788844A CN 101788844 A CN101788844 A CN 101788844A CN 200910002981 A CN200910002981 A CN 200910002981A CN 200910002981 A CN200910002981 A CN 200910002981A CN 101788844 A CN101788844 A CN 101788844A
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Abstract
The invention relates to a device and a method for saving electricity, which are applied to a first electronic device which is provided with at least one connecting interface and is coupled with a second electronic device through a bus. The device for saving the electricity comprises a detection module, a power control module and a connection control module, wherein the detection module is coupled with the connecting interface and detects the loading state of the connecting interface to generate detection signals; the power control module controls power supplied from the bus to the first electronic device according to the detection signals; and the connection control module controls the connection state of the bus according to the detection signals.
Description
Technical field
The present invention is about a kind of electricity saver and method, particularly a kind of electricity saver and method that is applicable to the electronic product of supporting hot plug.
Background technology
Science and technology is showing improvement or progress day by day, and the user touches many electronic products in daily life, wherein has many electronic products to have computer bus, can couple with computer or directly in be built among the computer, for example: USB product or PCI/PCI Express product etc.And the development of total line products is roomy towards transmitting pin gradually, power consumption is low, and supports the trend of dynamic hot plug function to stride forward simultaneously.
Wherein, again with the factor of power consumption extensive discussions the most.Because the kind of bus is more and more, and speed is more and more faster, makes power consumption increase simultaneously relatively.Add that electronic product constantly develops towards miniaturization and portable direction, makes power consumption more and more be subjected to user's attention.Therefore, low power consumption has become one of important indicator of product competitiveness.
In order to reduce the power consumption of electronic product, many total line products are when design, adopt the mode of dynamically saving power consumption, for example: the active electric source control of the dormancy of USB (suspend) state or PCIE (active state power management, ASPM).In this, lower as if power consumption being accomplished, then these battery saving modes often need to drive formula provides strong support, mostly needs the manufacturer of total line products to develop voluntarily and drive formula.Though; utilize driving formula, to solve the problem of dynamic electricity-saving very convenient; and can revise problem apace; but in computer system is used; usually the product that has a plurality of use same bus exists simultaneously, for example: USB interface video camera (USB PC Camera), USB interface memory card card reader (USB card reader) or the carry-on dish of USB interface etc.Therefore, if dependence drives formula realization electricity-saving function fully, regular meeting causes the problem of computer compatibility to produce, even causes the operating system of computer to produce the phenomenon of working as machine.So the manufacturer of total line products is difficult to thoroughly solve the problem of compatibility and degree of stability, causes delaying of exploitation time-histories.
Moreover, if only use the built-in driving formula of operating system (OS) (inbox driver) then not have any electricity-saving function.With the card reader is that example explains, suppose that card reader is built-in by computer system, when card reader is in idle (idle) and awaits orders, but still can be in certain power consumption state, that is to say, be coupled to card reader even without any memory card, this moment, card reader was understood power consumption equally, so for running gear, its electricity consumption condition is a big problem beyond doubt.
Summary of the invention
In view of this, the present invention proposes a kind of electricity saver and method.According to the apply property of total line products, utilize the hot swap characteristics of bus interface, dynamic control bus product is connected with second electronic device, reaches further power saving.Directly reach dynamic electricity-saving initiatively, and must not use the driving formula to handle, can reduce the generation of consistency problem in the prior art by hardware.
The present invention proposes a kind of electricity saver, is applied to have first electronic installation of at least one connecting interface, and first electronic installation is coupled to second electronic device by bus, and this electricity saver comprises: detection module, energy supply control module and link control module.Detection module couples connecting interface, detects the load condition of connecting interface, and produces detection signal.Energy supply control module is according to detection signal, and control is supplied to the power supply of first electronic installation via bus.Link control module is according to detection signal, the connection status of control bus.
The present invention also proposes a kind of electricity saving method, be applied to have first electronic installation of at least one connecting interface, and first electronic installation is coupled to second electronic device by bus, comprises the following step: detect the load condition of connecting interface, and produce detection signal; According to detection signal, control is supplied to the power supply of first electronic installation via bus; According to detection signal, the connection status of control bus.
Relevant preferred embodiment of the present invention and effect thereof, conjunction with figs. explanation as after.
Description of drawings
The 1st figure: the first embodiment synoptic diagram of electricity saver of the present invention
The 2nd figure: the second embodiment synoptic diagram of electricity saver of the present invention
The 3rd figure: the process flow diagram of electricity saving method
[main element symbol description]
10: detection module
20: energy supply control module
30: link control module
40: the first electronic installations
42,421,422,423,424: connecting interface
50: bus
60: second electronic device
70,701,702,703,704: load
Embodiment
Please refer to " the 1st figure ", this figure is depicted as the first embodiment synoptic diagram of electricity saver of the present invention.Electricity saver proposed by the invention is applied to have first electronic installation 40 of at least one connecting interface 42, and first electronic installation 40 is coupled to second electronic device 60 by bus 50, and this electricity saver comprises: detection module 10, energy supply control module 20 and link control module 30.
The detection signal that energy supply control module 20 is produced according to detection module 10, control is supplied to the power supply of first electronic installation 40 via bus 50.Energy supply control module 20 is specially in order to handle when first electronic installation 40 will enter battery saving mode, only control in first electronic installation 40 otherwise the circuit unit that must operate just with its power-off, make province's electrical efficiency reach the highest.The present invention proposes, and when first electronic installation 40 enters battery saving mode, except the power supply that a little is provided gives detection module 10, continues outside the operate as normal and only stay detection module 10, and remaining other circuit units are all closed.
Above-mentioned bus 50 can be universal serial bus (USB) or high-speed peripheral element interconnection bus (PCIE) etc., as long as bus 50 has support hot plug (hot-plug) function, does not exceed with USB or PCIE.
Under with concrete instance as an illustration, please refer to " the 2nd figure " and be the second embodiment synoptic diagram of electricity saver of the present invention.In second embodiment, first electronic installation 40 is a card reader, and connecting interface 421～424 is the memory card slot of various types, and load 701～704 is the memory card of various types, as: 421 is the CF card slot, and relative load 701 is the CF card; 422 is the SM/xD card slot, and relative load 702 is the SM/xD card; 423 is the SD/MMC card slot, and relative load 703 is the SD/MMC card; 424 is the MS/MSPRO/HG card slot, and relative load 704 is the MS/MSPRO/HG card.And hypothesis second electronic device 60 is computer, therefore, first electronic installation 40 be general computer (as: NB) built-in card reader.That is to say that second electronic device 60 can be computer system, and first electronic installation 40 can be computer peripheral apparatus.
In second embodiment, load condition produces with the coupling access status of connecting interface 421～424 according to memory card 701～704.Any load couples with it when first electronic installation 40 (card reader) detects not by detection module 10, that is to say that memory card 701～704 does not all insert among the memory card slot 421～424, on behalf of first electronic installation 40, this kind situation promptly do not need to carry out work.At this moment, first electronic installation 40 will initiatively enter battery saving mode, by the power supply that energy supply control module 20 control second electronic devices 60 (computer) are provided, close the circuit unit in first electronic installation 40, again by link control module 30 control buss 50 and second electronic device 60 broken strings.In this, the realization of battery saving mode is by realizing with second electronic device 60 broken string, utilizes the hot swap characteristics of bus 50 and finishes dynamic hot plug.
Battery saving mode proposed by the invention, first electronic installation 40 has logically broken away from bus 50, and second electronic device 60 thinks that first electronic installation 40 has been removed, but in fact first electronic installation 40 still is coupled on the bus 50.At this moment, whether first electronic installation 40 only needs and can get final product by the monitoring load state, for example have memory card 701～704 to be inserted among the memory card slot 421～424, decides when need enter mode of operation by load condition.Because first electronic installation 40 has broken away from bus 50 in logic, so can not consume the power supply that second electronic device 60 is provided, and only need keep detection module 10 in mode of operation, get final product in order to detect load condition, and remaining circuit unit all can enter sleep state in first electronic installation 40.
In addition, except above-mentioned first electronic installation of lifting 40 is card reader, and load 70 is outside the embodiment of memory card, also has multiple different enforcement aspect, the second that can be 10/100/Giba-bit as: first electronic installation 40 is (ethernet) network apparatus too, and relative load 70 can be in order to network circuit that is coupled to network apparatus etc.Therefore, load condition can produce with the coupling access status of connecting interface 42 according to the peripheral element (as: memory card, network circuit etc., that is load 70) of first electronic installation 40.
Electricity saver proposed by the invention is handled the power consumption problem by hardware oneself, is easy to generate the problem of compatibility unlike prior art because of use software (driving formula).In addition, the present invention is after entering battery saving mode, only staying detection module 10 works on, and the remaining circuit unit of first electronic installation 40 just is dormant state Bu Mao, therefore when entering battery saving mode, just behind bus 50 broken strings, experimental result finds that institute's consumed current only is micromicroampere (μ A) grade, has significantly promoted province's electrical efficiency.
Please refer to " the 3rd figure ", this figure is depicted as the process flow diagram of electricity saving method.Electricity saving method proposed by the invention is applied to have first electronic installation of at least one connecting interface, and first electronic installation is coupled to second electronic device by bus, comprises the following step.
Step S10: detect the load condition of connecting interface, and produce detection signal.In this, more can comprise the following step:, produce load condition according to the coupling access status of memory card and connecting interface.Perhaps, according to the peripheral element of first electronic installation and the coupling access status of connecting interface, produce load condition.
Step S20: according to detection signal, control is supplied to the power supply of first electronic installation via bus.Wherein, can provide power supply by computer system.
Step S30: according to detection signal, the connection status of control bus.In this, more can comprise the following step: when load condition presents when non-loaded, the control linkage state is broken string.Perhaps, when load condition had load, the control linkage state was a line.
Above-mentioned bus can be supported the function of hot plug, can be universal serial bus or is high-speed peripheral element interconnection bus.In addition, second electronic device can be computer system, and first electronic installation can be computer peripheral apparatus.
Though technology contents of the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; do not breaking away from spirit of the present invention a little change and the retouching done; all should be covered by in the category of the present invention, so protection scope of the present invention is when looking accompanying being as the criterion that claim defines.
Claims (20)
1. electricity saver is applied to have one first electronic installation of at least one connecting interface, and this first electronic installation is coupled to a second electronic device by a bus, and this electricity saver comprises:
One detection module couples this connecting interface, detects a load condition of this connecting interface, and produces a detection signal;
One energy supply control module, according to this detection signal, control is supplied to a power supply of this first electronic installation via this bus; And
One link control module according to this detection signal, is controlled a connection status of this bus.
2. electricity saver as claimed in claim 1, when wherein this load condition was non-loaded, this connection status was broken string (offline).
3. electricity saver as claimed in claim 1, wherein this load condition is when having load, and this connection status is line (online).
4. electricity saver as claimed in claim 1, wherein this load condition is to produce according to the coupling access status of a memory card and this connecting interface.
5. electricity saver as claimed in claim 1, wherein this load condition is according to the coupling access status of a peripheral element of this first electronic installation and this connecting interface and produce.
6. electricity saver as claimed in claim 1, wherein this power supply is provided by a computer system.
7. electricity saver as claimed in claim 1, wherein this bus is supported hot plug (hot-plug).
8. electricity saver as claimed in claim 1, wherein this bus is universal serial bus (USB).
9. electricity saver as claimed in claim 1, wherein this bus is a high-speed peripheral element interconnection bus (PCIE).
10. electricity saver as claimed in claim 1, wherein this second electronic device is a computer system, and this first electronic installation is a computer peripheral apparatus.
11. an electricity saving method is applied to have one first electronic installation of at least one connecting interface, and this first electronic installation is coupled to a second electronic device by a bus, comprises the following step:
Detect a load condition of this connecting interface, and produce a detection signal;
According to this detection signal, control is supplied to a power supply of this first electronic installation via this bus; And
According to this detection signal, control a connection status of this bus.
12. electricity saving method as claimed in claim 11 is wherein controlled this connection status of this bus, comprises the following step:
When this load condition presents when non-loaded, control this connection status and be broken string (offline).
13. electricity saving method as claimed in claim 11 is wherein controlled this connection status of this bus, comprises the following step:
When this load condition had load, controlling this connection status was line (online).
14. electricity saving method as claimed in claim 11 wherein detects this load condition of this connecting interface, comprises the following step:
Coupling access status according to a memory card and this connecting interface produces this load condition.
15. electricity saving method as claimed in claim 11 wherein detects this load condition of this connecting interface, comprises the following step:
According to a peripheral element of this first electronic installation and the coupling access status of this connecting interface, produce this load condition.
16. electricity saving method as claimed in claim 11 is wherein controlled this power supply that is supplied to this first electronic installation via this bus, comprises the following step:
Provide this power supply by a computer system.
17. electricity saving method as claimed in claim 11, wherein this bus is supported hot plug (hot-plug).
18. electricity saving method as claimed in claim 11, wherein this bus is universal serial bus (USB).
19. electricity saving method as claimed in claim 11, wherein this bus is a high-speed peripheral element interconnection bus (PCIE).
20. electricity saving method as claimed in claim 11, wherein this second electronic device is a computer system, and this first electronic installation is a computer peripheral apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910002981A CN101788844A (en) | 2009-01-23 | 2009-01-23 | Device and method for saving electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910002981A CN101788844A (en) | 2009-01-23 | 2009-01-23 | Device and method for saving electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101788844A true CN101788844A (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910002981A Pending CN101788844A (en) | 2009-01-23 | 2009-01-23 | Device and method for saving electricity |
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| CN (1) | CN101788844A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445981A (en) * | 2010-09-30 | 2012-05-09 | 瑞昱半导体股份有限公司 | Data transmission system and data transmission method |
| CN102662458A (en) * | 2012-04-18 | 2012-09-12 | 华为技术有限公司 | Dynamic energy-saving method and device for PCIE equipment and communication system of PCIE equipment |
| CN102681650A (en) * | 2012-05-10 | 2012-09-19 | 北京邦诺存储科技有限公司 | Power supply control energy-saving method and corresponding storage system thereof |
| CN102681968A (en) * | 2012-05-25 | 2012-09-19 | 山西联华伟业科技有限公司 | Hot-plugging slot identification circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070023499A1 (en) * | 2004-01-20 | 2007-02-01 | Henry Wurzburg | Electrically Disconnecting a Peripheral Device |
-
2009
- 2009-01-23 CN CN200910002981A patent/CN101788844A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070023499A1 (en) * | 2004-01-20 | 2007-02-01 | Henry Wurzburg | Electrically Disconnecting a Peripheral Device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445981A (en) * | 2010-09-30 | 2012-05-09 | 瑞昱半导体股份有限公司 | Data transmission system and data transmission method |
| CN102445981B (en) * | 2010-09-30 | 2015-07-01 | 瑞昱半导体股份有限公司 | Data transmission system and data transmission method |
| CN102662458A (en) * | 2012-04-18 | 2012-09-12 | 华为技术有限公司 | Dynamic energy-saving method and device for PCIE equipment and communication system of PCIE equipment |
| CN102662458B (en) * | 2012-04-18 | 2015-07-08 | 华为技术有限公司 | Dynamic energy-saving method and device for PCIE equipment and communication system of PCIE equipment |
| US9563257B2 (en) | 2012-04-18 | 2017-02-07 | Huawei Technologies Co., Ltd. | Dynamic energy-saving method and apparatus for PCIE device, and communication system thereof |
| CN102681650A (en) * | 2012-05-10 | 2012-09-19 | 北京邦诺存储科技有限公司 | Power supply control energy-saving method and corresponding storage system thereof |
| CN102681650B (en) * | 2012-05-10 | 2016-03-30 | 杭州海康威视数字技术股份有限公司 | The storage system of a kind of Energy control power-economizing method and correspondence thereof |
| CN102681968A (en) * | 2012-05-25 | 2012-09-19 | 山西联华伟业科技有限公司 | Hot-plugging slot identification circuit |
| CN102681968B (en) * | 2012-05-25 | 2015-03-18 | 山西联华伟业科技有限公司 | Hot-plugging slot identification circuit |
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Application publication date: 20100728 |