CN101751108B - Computer system - Google Patents
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- CN101751108B CN101751108B CN 200810182083 CN200810182083A CN101751108B CN 101751108 B CN101751108 B CN 101751108B CN 200810182083 CN200810182083 CN 200810182083 CN 200810182083 A CN200810182083 A CN 200810182083A CN 101751108 B CN101751108 B CN 101751108B
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- mainboard
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- 230000011664 signaling Effects 0.000 claims description 72
- 239000004020 conductor Substances 0.000 claims description 28
- 230000009183 running Effects 0.000 claims description 27
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
本发明公开了一种计算机系统，包括机箱、多个主板、风扇控制模块与多个风扇。机箱配置多个主板位置信号产生单元。每一主板包括信号产生电路与基板管理控制器。其中信号产生电路与机箱的其中之一的主板位置信号产生单元配合，以产生一主板位置信号。基板管理控制器接收主板位置信号与主板工作温度信号，输出该主板的工作状态信号。风扇控制模块耦接至基板管理控制器，接收并依据主板工作状态信号，而产生多个风扇控制信号。风扇耦接至风扇控制模块，依据风扇控制信号决定其运转。
The present invention discloses a computer system, including a chassis, a plurality of motherboards, a fan control module and a plurality of fans. The chassis is equipped with a plurality of motherboard position signal generating units. Each motherboard includes a signal generating circuit and a baseboard management controller. The signal generating circuit cooperates with one of the motherboard position signal generating units of the chassis to generate a motherboard position signal. The baseboard management controller receives the motherboard position signal and the motherboard operating temperature signal, and outputs the working status signal of the motherboard. The fan control module is coupled to the baseboard management controller, receives and generates a plurality of fan control signals according to the motherboard working status signal. The fan is coupled to the fan control module, and its operation is determined according to the fan control signal.
Description
Technical field
The invention relates to a kind of control fan running technology, and particularly relevant for a kind of computer system that can control fan running.
Background technology
In general, in the cabinet (chassis) of server (Server) or computer system, can dispose polylith mainboard (Motherboard).Owing to be disposed at element on these mainboards (central processor CPU for example ... Deng) can produce high temperature when working; Therefore; For avoiding these elements Yin Gaowen to influence its task performance or being burnt by high temperature; Just must cooling measure be provided, that is near these mainboards, dispose corresponding fan, so that will hang down the high temperature that element produced on the mainboard it.
Yet when no matter whether server or computer system operation and all mainboards all are in the state of work, all fans all can turn round in the lump, that is have only a mainboard when work, and all fans still can turn round in the lump.Owing to fan can't not have work to shut down because of the mainboard of correspondence, so can make some fan be in the phenomenon of idle running, and then increase power consumption and noise.
Summary of the invention
The present invention provides a kind of computer system, can avoid some fan to be in the phenomenon of idle running by this effectively, and then reduce power consumption and noise.
The present invention proposes a kind of computer system, comprises cabinet, a plurality of mainboard, fan control module and a plurality of fan.Cabinet disposes a plurality of mainboard position signalling generation units.Each mainboard comprises signal and baseboard management controller.Wherein one of them mainboard position signalling generation unit of signal generating circuit and cabinet cooperates, to produce a mainboard position signalling.Baseboard management controller receives mainboard position signalling and mainboard working temperature signal, exports the working state signal of this mainboard.Fan control module is coupled to baseboard management controller, receives and according to the mainboard working state signal, and produces a plurality of fan control signals.Fan is coupled to fan control module, according to its running of fan control signal decision.
In an embodiment of the present invention, the said fans control module comprises master controller and fan governor.Master controller receives the mainboard working state signal of baseboard management controller, sends a total fan control signal.Fan governor receives this fan control signal, changes a plurality of fan control signals, controls corresponding fan running.
In an embodiment of the present invention, be to utilize internal integrated circuit (Inter-Integrated Circuit, I2C) bus is carried out signal transmission between aforesaid substrate Management Controller and the fan control module.
In an embodiment of the present invention, the said fans control module is set the incidence relation of the fan of each mainboard and its relevant position, and control has only the fan running of the mainboard correspondence position in the work.
In an embodiment of the present invention, the said fans control module is according to the rotating speed of the operational temperature information decision respective fans running of mainboard.
In an embodiment of the present invention, the signal generating circuit of above-mentioned mainboard and the mainboard position signalling generation unit on the cabinet connect to be stated, and produces a mainboard position signalling, and the physical location on the expression cabinet is equipped with mainboard.
In an embodiment of the present invention, above-mentioned each mainboard position signalling generation unit comprises pedestal and a plurality of conductor.Pedestal has a plurality of storage tanks.Above-mentioned conductor selectivity is configured in the storage tank.
In an embodiment of the present invention, signal generating circuit comprises a plurality of pins, when the pin of part at least with after at least partly conductor contacts, generation mainboard position signalling.
In an embodiment of the present invention, above-mentioned pin connects power end, and above-mentioned conductor connects earth terminal.
In an embodiment of the present invention, above-mentioned pin then produce low level signal, and above-mentioned pin contacts with conductor not with after conductor contacts, and then produces high level signal.
The present invention cooperates through the mainboard position signalling generation unit that disposes on the signal generating circuit on each mainboard and the cabinet, and produces the mainboard position signalling.Afterwards, when mainboard was installed on the cabinet and works, baseboard management controller just can receive mainboard position signalling and mainboard working temperature signal, and output mainboard working state signal.Then, fan control module just can produce fan control signal according to above-mentioned working state signal, so that the corresponding fan running of control.Thus, can avoid to avoid effectively some fan to be in the phenomenon of idle running effectively, and then reduce power consumption and noise.In addition, temperature when fan management module of the present invention can also be worked according to mainboard height, and the rotating speed the during running of decision respective fans.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs. elaborates as follows.
Description of drawings
Fig. 1 illustrates the calcspar into the computer system of one embodiment of the invention.
Fig. 2 illustrates the synoptic diagram into the mainboard position signalling generation unit of one embodiment of the invention.
Fig. 3 illustrates the partial enlarged drawing into mainboard position signalling generation unit in the cabinet of one embodiment of the invention.
Fig. 4 illustrates the CC synoptic diagram into signal generating circuit of one embodiment of the invention and mainboard position signalling generation unit.
Embodiment
Fig. 1 illustrates and is the block schematic diagram according to the computer system of one embodiment of the invention.Please with reference to Fig. 1, computer system 100 comprises cabinet 110, mainboard 120_1～120_n, fan control module 130 and fan 140_1～140_m.Wherein n, m are the positive integer greater than 0, and n, m can be made as identical or inequality.
Explanation for ease, the quantity of supposing mainboard is 4 (n=4), that is mainboard 120_1～120_4, number of fans is 5 (m=5), that is fan 140_1～140_5.Because the relation of signal generating circuit and the corresponding separately mainboard of baseboard management controller, so the quantity of signal generating circuit and baseboard management controller also be 4, that is signal generating circuit 121_1～121_4 and baseboard management controller 122_1～122_4.And mainboard position signalling generation unit can cooperate with the signal generation unit, so the quantity of mainboard position signalling generation unit also is 4, that is mainboard position signalling generation unit 111_1～111_4.
And mainboard 120_1～120_4 with the corresponding relation of fan 140_1～140_5 is: the corresponding fan 140_1 of mainboard 120_1,140_2, the corresponding fan 140_2 of mainboard 120_2, the corresponding fan 140_3 of mainboard 120_3, the corresponding fan 140_5 of mainboard 120_4.In addition; When mainboard 120_1～120_4 is installed on cabinet 110 and running; Signal generating circuit 121_1～121_4 can cooperate with mainboard position signalling generation unit 111_1～121_4, and produces the mainboard position signalling respectively, for example is respectively " 00 ", " 01 ", " 10 ", " 11 ".
For instance, when mainboard 120_1 was installed on the cabinet 110 and works, signal generating circuit 121_1 can cooperate with mainboard position signalling generation unit 111_1, and produced mainboard position signalling " 00 " to baseboard management controller 122_1.Afterwards, baseboard management controller 122_1 receives the mainboard working temperature signal of mainboard position signalling " 00 " and mainboard 120_1, and working state signal to the fan control module 130 of output mainboard 120_1.At this moment, fan control module 130 just can produce the fan control signal of logic high potential to fan 140_1,140_2, and makes fan 140_1,140_2 turn round, so that reduce the high temperature that mainboard 120_1 is produced.
On the other hand, owing to mainboard 120_2～120_4 is not installed on the cabinet 110, so fan 140_3～140_5 can't turn round.Thus, will not have in the computer system 100 and the not work of some mainboard occur, and corresponding fan is in the phenomenon of idle running.
In addition; When mainboard 120_1 and 120_2 are installed on cabinet 110 and work; Signal generating circuit 121_1 can cooperate with 111_2 with mainboard position signalling generation unit 111_1 with 121_2, and produces mainboard position signalling " 00 " and " 01 " respectively to baseboard management controller 122_1 and 122_2.Afterwards, baseboard management controller 122_1 and 122_2 receive the mainboard working temperature signal of mainboard position signalling " 00 ", " 01 " and mainboard 120_1 and 120_2 respectively, and working state signal to the fan control module 130 of output mainboard 120_1 and 120_2.At this moment, fan control module 130 just can produce the fan control signal of logic high potential to fan 140_1,140_2 and 140_3, and makes fan 140_1,140_2 and 140_3 turn round, so that reduce the high temperature that mainboard 120_1 and 120_2 are produced.
On the other hand, because mainboard 120_3 and 120_4 be not installed on the cabinet 110, so fan 140_4 and 140_5 can't turn round.Thus, in the time of will some mainboard can not occurring in the computer system 100 and not work, and corresponding fan is in the phenomenon of idle running.
In addition; When mainboard 120_1～120_3 works; Signal generating circuit 121_1～121_3 can cooperate with mainboard position signalling generation unit 111_1～111_3, and produces mainboard position signalling " 00 ", " 01 ", " 10 " respectively to baseboard management controller 122_1～122_3.Afterwards; Baseboard management controller 122_1～122_3 receives the mainboard working temperature signal of mainboard position signalling " 00 ", " 01 ", " 10 " and mainboard 120_1～120_3 respectively, and working state signal to the fan control module 130 of output mainboard 120_1～120_3.At this moment, fan control module 130 just can produce the fan control signal of logic high potential to fan 140_1～140_4, and makes fan 140_1～140_4 turn round, so that reduce the high temperature that mainboard 120_1～120_3 is produced.
On the other hand, owing to mainboard 120_4 is not installed on the cabinet 110, so fan 140_5 does not turn round.Thus, in the time of will some mainboard can not occurring in the computer system 100 and not work, and corresponding fan is in the phenomenon of idle running.
In addition; When mainboard 120_1～120_4 all is installed on cabinet 110 and work; Signal generating circuit 121_1～121_4 can cooperate with mainboard position signalling generation unit 111_1～111_4, and produces mainboard position signalling " 00 ", " 01 ", " 10 ", " 11 " respectively to baseboard management controller 122_1～1224.Afterwards; Baseboard management controller 122_1～122_4 receives the mainboard working temperature signal of mainboard position signalling " 00 ", " 01 ", " 10 ", " 11 " and mainboard 120_1～120_4 respectively, and working state signal to the fan control module 130 of output mainboard 120_1～120_4.At this moment, fan control module 130 just can produce the fan control signal of logic high potential to fan 140_1～140_5, and makes fan 140_1～140_5 all turn round, so that reduce the temperature that mainboard 120_1～120_n is produced.Thus, computer system 100 just can avoid some fan to be in the phenomenon of idle running.The corresponding relation that whether turns round with corresponding fan 140_1～140_5 when all the other mainboard 120_1～120_4 works then can be with reference to above-mentioned explanation, so repeat no more at this.In addition, the above embodiments are merely a kind of enforcement example of the present invention, and those skilled in the art can know other embodiment through the above embodiments by inference, so also repeat no more at this.
In the present embodiment, because baseboard management controller can receive mainboard working temperature signal, so can have the operational temperature information of mainboard in the working state signal of the mainboard that baseboard management controller produced.So, when fan control module receives above-mentioned working state signal, just can be according to the operational temperature information of mainboard, and the rotating speed of decision respective fans running.
For instance, when mainboard 120_1 was installed on the cabinet 110 and works, then baseboard management controller 122_1 just can receive the working temperature signal of mainboard 120_1.And the temperature that is produced during mainboard 120_1 work is higher, has the operational temperature information of " height " temperature in the working state signal of baseboard management controller 122_1 output mainboard 120_1.By this; Fan control module 130 just can be corresponding generation for example higher PWM (the Pulse Width Modulation) signal of frequency to fan 140_1,140_2; Make the faster rotational speed of fan 140_1,140_2, so that reduce the high temperature that mainboard 120_1 is produced apace.
In addition, the temperature that when mainboard 120_1 works, is produced is lower, has the operational temperature information of " low " temperature in the working state signal of baseboard management controller 122_1 output mainboard 120_1.By this, the generation PWM signal that for example frequency is lower that fan control module 130 just can be corresponding makes the rotating speed of fan 140_1,140_2 slow down, so that reduce power consumption to fan 140_1,140_2.And adjust with the rotating speed of corresponding fan 140_2～140_m during all the other mainboard 120_2～120_n work, then can be with reference to above-mentioned explanation, so repeat no more at this.
In the present embodiment, fan control module 130 comprises master controller 131 and fan governor 132.Master controller 131 receives the mainboard working state signal of baseboard management controller 122_1～122_n, sends total fan control signal.Fan governor 132 receives total fan control signal, converts a plurality of fan control signals into, controls corresponding fan 140_1～140_m running.
In the present embodiment; Signal generating circuit 121_1～121_4 of mainboard 120_1～120_4 contacts with mainboard position signalling generation unit 111_1～111_4 on the cabinet 110; Produce the mainboard position signalling respectively, the physical location on the expression cabinet 110 is equipped with mainboard.
In addition, the mainboard position signalling generation unit 111_1 of present embodiment comprises pedestal 210 and a plurality of conductors 220, shown in Fig. 2 A and Fig. 2 B.Pedestal 210 has a plurality of storage tanks 230.Conductor 220 is disposed in the storage tank 230.The inner structure of all the other mainboard position signalling generation unit 111_2～111_4 is same as mainboard position signalling generation unit 111_2～111_4, so repeat no more at this.
And signal generating circuit 121_1 comprises a plurality of pins 250, when the pin 250 of part at least with after at least partly conductor 220 contacts, generation mainboard position signalling.In addition, the pin 250 of signal generating circuit 121_1～121_4 connects power end, for example is P3V3, and the conductor 220 of mainboard position signalling generation unit 111_1～111_4 connects earth terminal.
For instance, suppose that signal generating circuit 121_1 has 2 pins, and mainboard position signalling generation unit 111_1 have 2 conductors.When mainboard 120_1 is installed on cabinet 110; And its signal generating circuit 121_1 contacts with mainboard position signalling generation unit 111_1 on the cabinet 110; That is 2 pins of signal generating circuit 121_1 then produce the mainboard position signalling of mainboard 120_1, for example " 00 " with after conductor 230 contacts.
In addition, suppose that signal generating circuit 121_2 has 2 pins, and mainboard position signalling generation unit 111_2 has 1 conductor.When mainboard 120_2 is installed on cabinet 110; And its signal generating circuit 121_2 contacts with mainboard position signalling generation unit 111_2 on the cabinet 110; That is 2 pins of signal generating circuit 121_2 then produce mainboard 120_2 mainboard position signalling, for example " 01 " with after conductor 230 contacts.
Suppose that signal generating circuit 121_3 has 2 pins, and mainboard position signalling generation unit 111_3 has 1 conductor, and the conductor position of mainboard position signalling generation unit 111_3 is different from the conductor position of mainboard position signalling generation unit 111_2.That is to say; When mainboard 120_3 is installed on cabinet 110; And its signal generating circuit 121_3 contacts with mainboard position signalling generation unit 111_3 on the cabinet 110; That is 2 pins of signal generating circuit 121_3 then produce the mainboard position signalling of mainboard 120_3, for example " 10 " with after conductor 230 contacts.
Suppose that signal generating circuit 121_4 has 2 pins, and mainboard position signalling generation unit 111_4 does not dispose conductor, when then mainboard 120_4 is installed on cabinet 110, then produces the mainboard position signalling, for example " 11 ".
By above-mentioned explanation; Those skilled in the art can be through changing the quantity and the allocation position of conductor in the mainboard position signalling generation unit, to produce different mainboard position signallings, thus; Can control the running of respective fans effectively, produce the phenomenon of idle running to avoid some fan.
Fig. 4 illustrates and is the CC synoptic diagram for signal generating circuit of one embodiment of the invention and mainboard position signalling generation unit.Please with reference to Fig. 4; Label 410 and 420 expression signals produce the pin of circuit 121_1; And pin 410 and 420 sees through a resistance respectively and is connected to power end P3V3, the conductor 220 of label 220 expression mainboard position signalling generation unit 111_1, and conductor is connected to earth terminal.When mainboard 121_1 was installed on cabinet 110, pin 410 can contact with conductor 220 with 420, and produces mainboard position signalling " 00 ".The CC of all the other signal generating circuit 121_2～121_n and mainboard position signalling generation unit 111_2～111_n then can push away with reference to above-mentioned explanation, so repeat no more at this.
In sum, the present invention cooperates through the mainboard position signalling generation unit that disposes on the signal generating circuit on each mainboard and the cabinet, and produces the mainboard position signalling, so that which mainboard to be installed on the foundation on the cabinet as.Afterwards, when mainboard was installed on the cabinet and works, baseboard management controller just can receive mainboard position signalling and mainboard working temperature signal, and output mainboard working state signal.Then, fan control module just can produce fan control signal according to above-mentioned working state signal, so that the corresponding fan running of control.Thus, can avoid some fan to be in the phenomenon of idle running effectively, and then reduce power consumption and noise.In addition, temperature that fan management module of the present invention is produced in the time of can also working according to mainboard height, and the rotating speed the during running of decision respective fans.
Though the present invention discloses as above with embodiment; Right its is not in order to limit the present invention; Has common knowledge the knowledgeable in the technical field under any; Do not breaking away from the spirit and scope of the present invention, when doing a little change and retouching, so protection scope of the present invention is when being as the criterion with what claim defined.
Claims (8)
1. computer system comprises:
One cabinet disposes a plurality of mainboard position signalling generation units;
A plurality of mainboards, each those mainboard comprises:
One signal generating circuit cooperates with a mainboard position signalling generation unit wherein on this cabinet, to produce a mainboard position signalling; And
One baseboard management controller receives this a mainboard position signalling and a mainboard working temperature signal, exports a working state signal of this mainboard;
One fan control module is coupled to those baseboard management controllers, receives and according to those mainboard working state signals, and produces a plurality of fan control signals; And
A plurality of fans are coupled to this fan control module, according to those its runnings of fan control signal decision;
Wherein, One of them contacts those mainboard position signalling generation units on one of them this signal generating circuit and this cabinet of those mainboards; Produce this mainboard position signalling; Represent on this cabinet a plurality of physical locations one of them mainboard is installed, this fan control module is set the incidence relation of each mainboard and those fans of its relevant position, controls those fan runnings that have only the mainboard correspondence position in the work.
2. computer system as claimed in claim 1 is characterized in that, this fan control module comprises:
One master controller receives this mainboard working state signals of those baseboard management controllers, sends a total fan control signal; And
One fan governor receives this total fan control signal, converts a plurality of fan control signals into, corresponding those fan runnings of control.
3. computer system as claimed in claim 1 is characterized in that, between those baseboard management controllers and this fan control module is to utilize internal integrate circuit bus to carry out the signal transmission.
4. computer system as claimed in claim 1 is characterized in that, this fan control module is according to the rotating speed of the operational temperature information decision respective fans running of those mainboards.
5. computer system as claimed in claim 1 is characterized in that, each those mainboard position signalling generation unit comprises:
One pedestal has a plurality of storage tanks; And
A plurality of conductors, selectivity are configured in those storage tanks.
6. computer system as claimed in claim 1 is characterized in that those signal generating circuits comprise a plurality of pins, when at least the part those pins with at least the part those conductors contact after, produce this mainboard position signalling.
7. computer system as claimed in claim 6 is characterized in that those pins connect a power end, and those conductors connect an earth terminal.
8. computer system as claimed in claim 7 is characterized in that, when those pins with after those conductors contact, then can produce low level signal, and not contact when those pins with those conductors, then can produce high level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200810182083 CN101751108B (en) | 2008-11-28 | 2008-11-28 | Computer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200810182083 CN101751108B (en) | 2008-11-28 | 2008-11-28 | Computer system |
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| CN101751108A CN101751108A (en) | 2010-06-23 |
| CN101751108B true CN101751108B (en) | 2012-12-26 |
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| CN 200810182083 Expired - Fee Related CN101751108B (en) | 2008-11-28 | 2008-11-28 | Computer system |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480389A (en) * | 2010-11-30 | 2012-05-30 | 英业达股份有限公司 | Rack server system |
| ES2670583T3 (en) * | 2011-04-13 | 2018-05-31 | Huawei Technologies Co., Ltd. | System, device and management method of multiple service nodes |
| CN102521102A (en) * | 2011-12-12 | 2012-06-27 | 浪潮电子信息产业股份有限公司 | Monitoring management method of physical multi-partition computer system based on Non Uniform Memory Access (NUMA) |
| CN103294143A (en) * | 2012-03-02 | 2013-09-11 | 鸿富锦精密工业（深圳）有限公司 | Cooling system |
| CN103309426A (en) * | 2012-03-12 | 2013-09-18 | 鸿富锦精密工业（深圳）有限公司 | Server |
| WO2014037988A1 (en) | 2012-09-04 | 2014-03-13 | 富士通株式会社 | Temperature administration system |
| CN104121213B (en) * | 2013-04-24 | 2016-02-03 | 加弘科技咨询(上海)有限公司 | Control method for fan and system |
| CN103699466B (en) * | 2013-12-20 | 2015-10-21 | 深圳宝龙达信息技术股份有限公司 | Fan communication test device and method |
| TWI502340B (en) * | 2014-01-08 | 2015-10-01 | Wistron Corp | Rack space management system and rack space management method thereof |
| CN103970632A (en) * | 2014-05-27 | 2014-08-06 | 浪潮电子信息产业股份有限公司 | Method for restoring default fan rotating speed of Smart Rack cabinet |
| CN110469529B (en) * | 2018-05-11 | 2020-12-08 | 佛山市顺德区顺达电脑厂有限公司 | Server fan control system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2708010Y (en) * | 2004-04-01 | 2005-07-06 | 周青麟 | Fan control device |
| CN101127001A (en) * | 2006-08-15 | 2008-02-20 | 泰安电脑科技（上海）有限公司 | System management configuration of multiple main board system |
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2008
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2708010Y (en) * | 2004-04-01 | 2005-07-06 | 周青麟 | Fan control device |
| CN101127001A (en) * | 2006-08-15 | 2008-02-20 | 泰安电脑科技（上海）有限公司 | System management configuration of multiple main board system |
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Address after: Lau Jia Shu Lou 065200 Southern District of Sanhe City, Hebei province Langfang City Hospital No. 141 Patentee after: Sun Yanfang Address before: Lau Jia Shu Lou 065200 Southern District of Sanhe City, Hebei province Langfang City Hospital No. 141 Patentee before: Sun Yanfang |
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Address after: Xinyi Road Xiufeng District, Guilin city 541001 No. 93 the Guangxi Zhuang Autonomous Region Patentee after: Sun Yanfang Address before: Lau Jia Shu Lou 065200 Southern District of Sanhe City, Hebei province Langfang City Hospital No. 141 Patentee before: Sun Yanfang |
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Address after: Lau Jia Shu Lou 065200 Southern District of Sanhe City, Hebei province Langfang City Hospital No. 141 Patentee after: Sun Yanfang Address before: Xinyi Road Xiufeng District, Guilin city 541001 No. 93 the Guangxi Zhuang Autonomous Region Patentee before: Sun Yanfang |
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Granted publication date: 20121226 Termination date: 20171128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |