CN101895729B - Streaming media server of embedded Linux shearing system - Google Patents

Streaming media server of embedded Linux shearing system Download PDF

Info

Publication number
CN101895729B
CN101895729B CN2010102176433A CN201010217643A CN101895729B CN 101895729 B CN101895729 B CN 101895729B CN 2010102176433 A CN2010102176433 A CN 2010102176433A CN 201010217643 A CN201010217643 A CN 201010217643A CN 101895729 B CN101895729 B CN 101895729B
Authority
CN
China
Prior art keywords
control module
module
speed communication
streaming media
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010102176433A
Other languages
Chinese (zh)
Other versions
CN101895729A (en
Inventor
费章君
陈飞凌
王强
景文林
叶军
刘智兵
伏怀文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANJING NANZI INFORMATION TECHNOLOGY Co Ltd
Original Assignee
NANJING NANZI INFORMATION TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NANJING NANZI INFORMATION TECHNOLOGY Co Ltd filed Critical NANJING NANZI INFORMATION TECHNOLOGY Co Ltd
Priority to CN2010102176433A priority Critical patent/CN101895729B/en
Publication of CN101895729A publication Critical patent/CN101895729A/en
Application granted granted Critical
Publication of CN101895729B publication Critical patent/CN101895729B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/40—Display of information, e.g. of data or controls

Abstract

The invention provides a streaming media server of an embedded Linux shearing system, which comprises a central control module POWERPC, a high-speed communication module, a data storage module, a low-speed communication module and a power supply control module. The streaming media server has the advantages that: the reproduction and distribution of audio and video streaming media are realized in a transformer substation remote monitoring system of a power system based on a network process POWERPC for the first time; and the processor POWERPC has wide applications in switch and router products in field of communication. Compared with the PC system, Windows operation system and conventional streaming media server, which use an X86 platform, the streaming media server of the invention has the advantages that: the cost is low, namely the cost of the streaming media server is 50 percent lower than the PC system with the same performance; and the power consumption of the streaming media server is over 80 percent lower than the PC system. The streaming media server has high stability and belongs to an embedded product. The streaming media server is safer for the adopted shearing linux kernel technique makes the safety of the system improved greatly compared with the Windows system.

Description

Streaming media server based on the built-in Linux cutting system
Technical field
What the present invention relates to is a kind of streaming media server based on the built-in Linux cutting system, and transformer station of suitable power system Active Eyes application demand belongs to the network communications technology field.
Background technology
Transformer station's network video monitor and control system (also claiming " remote viewing system ") has tentatively solved the telemonitoring problem after transformer station's " unattended operation ".By setting up streaming media server, realize a plurality of transformer stations online monitoring remote video simultaneously in Surveillance center.Conventional flow media service system based on x86PC framework Windows operating system all is being short of aspect fail safe, stability, the execution efficient power consumption to some extent, in modern electric power system, networking, digitlization and the automation of electric substation's management are the inexorable trends that electric power development requires, and the unattended operation of electric substation, integrated management and safety management are the modern only ways of electrical network.Domestic electric power system is when the unattended operation transformer station of building based on remote measurement, remote signalling, remote control, remote regulating-" four is distant " technology, because scheduling can't be understood on-the-spot ambient conditions, can't solve problems such as on-the-spot fire prevention, antitheft, explosion-proof, prevention against water-logging, a lot of transformer stations that build by " unattended operation " have adopted " few man on duty " mode operation.Along with the develop rapidly of computer technology, multimedia technology and mechanics of communication, the 5th distant-" remote viewing " that increases on the basis of " four is distant " is for realizing that transformer station's " unattended operation " has crucial meaning.Transformer station's security protection and environmental monitoring system are mainly used and are embodied by transformer station's network video monitor and control system (also claiming " remote viewing system "), mainly construct and implement, reach telemonitoring operation power equipment, substation based on the safety and protection system of video monitoring.Transformer station generally provides network interfaces such as E1 (2.048Mbps), 100M Fast Ethernet, when the multipath concurrence Network Video Surveillance is visited, for solving headend equipment concurrent processing bottleneck and network bandwidth bottleneck, need set up streaming media server in Surveillance center, make full use of the Gbps and the bag transfer capability of Surveillance center's switch, reach the concurrent visit effect of a plurality of networking clients.In remote viewing system, the Streaming Media reflecting software that runs at present on the PC realized the reception of stream medium data and duplicated forwarding capability, effectively solved the problem that effective bandwidth deficiency when occurring the focus visit in the supervisory control system and connecting and heterogeneous network connect.Along with the Streaming Media repeater system in actual items application and popularize, the fail safe of Streaming Media repeater system, stability and reliability requirement become increasingly conspicuous, and whether the operation whether it can be reliable and stable will directly have influence on the whole video supervisory control system and can normally move.The Observer Star network flow-medium service software that on PC server, Windows operating system, moves, can satisfy streaming media video monitoring application need on a small scale, its fail safe, stability and reliability go for most of project on a small scale generally.Because the Windows system exists well-known fail safe, stability and integrity problem, present streaming media server implementation can not adapt to extensive monitored item purpose application demand.In addition, the speciality of streaming media server is to have high bandwidth the high-speed stream media transfer of data is provided, relative less to other hardware resource of main frame (as CPU, internal memory and storage etc.) use, adopt high performance generic server to cause resources idle and waste as hardware platform.
Summary of the invention
The streaming media server that is based on the built-in Linux cutting system that the present invention proposes can effectively solve directly and obtain the network bandwidth deficiency that runs into from headend equipment, problems such as headend equipment video flowing transmitting capacity deficiency.Can from front end apparatus figure video server or web camera, obtain live video stream, and it is distributed in the client of any one application video flowing.
Technical solution of the present invention: its structure is to comprise kernel control module POWERPC, the high-speed communication module, data memory module, the low-speed communication module, energy supply control module, corresponding joining of I/O end of the first output/input of kernel control module POWERPC and high-speed communication module wherein, corresponding the joining of I/O end of the second output/input of kernel control module POWERPC and data memory module, corresponding the joining of I/O end of the 3rd output/input of kernel control module POWERPC and low-speed communication module, the power output end of energy supply control module and the power supply of kernel control module POWERPC are exported into end is corresponding and are joined, the power output end of energy supply control module and the power supply of high-speed communication module are exported into end is corresponding and are joined, the power output end of energy supply control module and the power supply of data memory module are exported into end is corresponding and are joined, and the power output end of energy supply control module connects the power supply of low-speed communication module and exports into end.
At actual environment for use, the present invention has the following advantages: 1) the present invention has used in the communications field widely used network processing unit POWERPC in the product such as switch router first in the forwarding of video flowing is used in the power system transformer substation long distance control system.With respect to the use PC, traditional streaming media server of windows operating system and streaming media service software, the present invention is with low cost, and under the situation of identical performance, cost of the present invention is lower than 50% of PC.The present invention's stability is high, belongs to embedded product, and hardware module all designs in same PCB, the compatible stability problem that does not exist PC often to have.2) the present invention is safe, uses cutting linux Kernel Technology, and fail safe greatly improves than the windows system.3) the present invention has increased network service quality control and management (QoS) function at electric power system video surveillance applications characteristics in the high-speed communication module, is used to handle work as simultaneously concurrent video data very for a long time, guarantees important video data priority treatment.4) the present invention has increased the automatically heavy online system of flow media session fault in the high-speed communication module, current looking closely when collecting device breaks down frequently, the high-speed communication module can be noted this fault point, and takes appropriate measures after recovery, recovers the communication of video capture device therewith.
Description of drawings
Accompanying drawing 1 is based on the structural representation of the streaming media server of built-in Linux cutting system.
Accompanying drawing 2 is kernel control modules and the part schematic diagram that is connected of high-speed communication module:
Accompanying drawing 3 is kernel control modules and the part schematic diagram that is connected of data memory module:
Accompanying drawing 4 is the static data memory cell part schematic diagrams in the data memory module.
Accompanying drawing 5 is the configuration information memory cell part schematic diagrams in the data memory module.
Accompanying drawing 6 high-speed communication module section schematic diagrams.
Accompanying drawing 7 is low-speed communication module section schematic diagrams.
Embodiment
Contrast accompanying drawing 1, its structure is to comprise kernel control module POWERPC, the high-speed communication module, data memory module, the low-speed communication module, energy supply control module, corresponding joining of I/O end of the first output/input of kernel control module POWERPC and high-speed communication module wherein, the high-speed communication module is connected on the Enhanced Tree-Speed Ethernet Controller (strengthening three speed ethernet controllers) of kernel control module by Gigabit Media Independent Interface (gigabit Media Independent Interface), the high-speed communication module is converted to the 4bit parallel data with the gigabit Ethernet data and sends to kernel control module, the 4bit parallel data of simultaneously kernel control module being sent is converted to the gigabit Ethernet data and is sent in the network, corresponding the joining of I/O end of the second output/input of kernel control module POWERPC and data memory module, each subelement of data memory module is connected to kernel control module by the interface of correspondence respectively, the video data storing sub-units is connected to the SATA control unit interface of kernel control module by the SATA data wire, realize the storage of Large Volume Data by the SATA hard disk, the dynamic data storage subelement is connected to the DDR Memory Controller Hub of kernel control module, realize dynamic data storage, the static data storing sub-units is connected to the Enhanced Local bus controller (enhancement mode local bus controller) of kernel control module by Local bus (local bus), realize the storage of control system data, the configuration information storing sub-units is connected to kernel control module by the I2c bus
The I2c controller, power on configuration information storage of realization, corresponding the joining of I/O end of the 3rd output/input of kernel control module POWERPC and low-speed communication module, the low-speed communication module is connected with kernel control module dual universal asynchronousreceiver/transmitters (UART) by 3 line TTY level, realizes that system information monitors.The power output end of energy supply control module and the power supply of kernel control module POWERPC are exported into end is corresponding and are joined, energy supply control module provides 3.3v to kernel control module, 1.8v, 1.0v etc. operating voltage, the power output end of energy supply control module and the power supply of high-speed communication module are exported into end is corresponding and are joined, energy supply control module provides 3.3v to the high-speed communication module, 1.5v operating voltage, the power output end of energy supply control module and the power supply of data memory module are exported into end is corresponding and are joined, energy supply control module provides 3.3v to data memory module, 1.8v operating voltage, the power output end of energy supply control module and the power supply of low-speed communication module are exported into end is corresponding and are joined, and energy supply control module provides 3.3v operating voltage to the low-speed communication module.
The master control module that has adopted POWERPC is the core of whole system, and for satisfying high speed, large-capacity video storage and the communication of low speed control data are satisfied in the real-time processing of multi-path video data stream simultaneously.The master control module of requirement system has higher operating frequency, a plurality of Fast Ethernet interfaces and high speed serialization hard disk controller.The stream media server system kernel control module has used the PowerQUICC II series high-performance communication processor powerpc 8379 of Freescale company, operating frequency is up to 666Mhz, have two G bit ethernet communication controllers simultaneously, and 4 SATA series hard-disk controllers.
Contrast accompanying drawing 2, kernel control module is by its " heart " POWERPC and other peripheral clocks, and auxiliary circuits such as power filter are formed, and its most important interface section is exactly the interface with the high-speed communication module.Wherein G1_RXD0～G1RXD3 is the 4bit parallel data received signal line that kernel control module arrives high-speed communication module kilomega network controller 1, G1_TXD0～G1TXD3 is the 4bit parallel data transmission holding wire that kernel control module arrives high-speed communication module kilomega network controller 1, in like manner wherein G2_RXD0～G2RXD3 is the 4bit parallel data received signal line that kernel control module arrives high-speed communication module kilomega network controller 2, and G2_TXD0～G2TXD3 is the 4bit parallel data transmission holding wire that kernel control module arrives high-speed communication module kilomega network controller 2.MDC and MDIO are the clock line and the data wire of GMII bus, and kernel control module is by the transmitting-receiving of the Gigabit Ethernet controller of their control high-speed communication modules.COL, CRS, the RX_ER equisignal line then is used for finishing conflict and surveys, and carrier sense receives tasks such as error detector.
Contrast accompanying drawing 3, kernel control module has 4 SATA controllers (accompanying drawing 3), and S_RXP0 among the figure, S_RXN0, S_TXP0, S_TXN0 are respectively two pairs of differential signal lines of the transmitting-receiving of SATA controller 0.SATA1～3 controllers in like manner.Kernel control module is finished the storage of the video data of SATA hard disk and the work of reading by these two pairs of data wires.
Contrast accompanying drawing 4, data memory module has comprised four parts: video data memory cell, dynamic data storage unit, static data memory cell and configuration information memory cell.To satisfy the storage needs in the whole stream media server system.The video data memory cell has used 7200 of Seagate Technology to change big capacity SATA interface hard disk, is used for a large amount of video data of real-time storage.The dynamic data storage unit has made the k5ps516DDR2 particle of 4 Hynix companies.Be used for operating system and use, and use during processing video data.The static data memory cell has been used the K9F5608U0D of 1 Samsung.This chip is 32M x8bit nand flash, is used for the operating system and the control program of stored stream media server system.
Contrast accompanying drawing 5, the configuration information memory cell has been used the M24356 of 1 ST company.This chip is the EEPROM of the I2c bus of a 256kbit, the configuration information when being used for storage system and powering on.
The contrast accompanying drawing 6, the high-speed communication module be in the stream media server system except kernel control module most important parts.Be used for collecting and transmitting of big capacity real time video data stream.Comprise a pair of G bit Ethernet Transmit-Receive Unit in the high-speed communication module, used the RTL8211 of Realtek company.
Contrast accompanying drawing 7, the low-speed communication module is used for the supervision of system information of stream media server system running and the communication port that control information is provided.The low-speed communication module has been used the 3232RS232 chip of SIPEX.
Energy supply control module provides kernel control module, all power supplys that memory module and high speed/low-speed communication module are required.Mainly comprised the AC/DC unit that 220v exchanges the 5V direct current, and 5V is to 3.3V, DC/DC unit such as 1.8V.

Claims (1)

1. based on the streaming media server of built-in Linux cutting system, it is characterized in that comprising kernel control module POWERPC, the high-speed communication module, data memory module, the low-speed communication module, energy supply control module, corresponding joining of I/O end of the first output/input of kernel control module POWERPC and high-speed communication module wherein, the high-speed communication module is connected on the enhancing three speed ethernet controllers of kernel control module by the gigabit Media Independent Interface, the high-speed communication module is converted to the 4bit parallel data with the gigabit Ethernet data and sends to kernel control module, and the 4bit parallel data of simultaneously kernel control module being sent is converted to the gigabit Ethernet data and is sent in the network; Corresponding the joining of I/O end of the second output/input of kernel control module POWERPC and data memory module, each subelement of data memory module is connected to kernel control module by the interface of correspondence respectively, the video data storing sub-units is connected to the SATA control unit interface of kernel control module by the SATA data wire, realize the storage of Large Volume Data by the SATA hard disk, the dynamic data storage subelement is connected to the DDR Memory Controller Hub of kernel control module, realize dynamic data storage, the static data storing sub-units is connected to the enhancement mode local bus controller of kernel control module by local bus, realize the storage of control system data, the configuration information storing sub-units is connected to the I2c controller of kernel control module by the I2c bus, and the configuration information storage realizes powering on; Corresponding the joining of I/O end of the 3rd output/input of kernel control module POWERPC and low-speed communication module, the low-speed communication module is connected with kernel control module by 3 line TTY level, realizes that system information monitors; Corresponding the joining of power input of the power output end of energy supply control module and kernel control module POWERPC, energy supply control module provides 3.3v to kernel control module, 1.8v, 1.0v operating voltage, corresponding the joining of power input of the power output end of energy supply control module and high-speed communication module, energy supply control module provides 3.3v to the high-speed communication module, 1.5v operating voltage, the power output end of energy supply control module joins with the power input of data memory module is corresponding, energy supply control module provides 3.3v to data memory module, 1.8v operating voltage, corresponding the joining of power input of the power output end of energy supply control module and low-speed communication module, energy supply control module provides 3.3v operating voltage to the low-speed communication module.
CN2010102176433A 2010-07-06 2010-07-06 Streaming media server of embedded Linux shearing system Expired - Fee Related CN101895729B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102176433A CN101895729B (en) 2010-07-06 2010-07-06 Streaming media server of embedded Linux shearing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102176433A CN101895729B (en) 2010-07-06 2010-07-06 Streaming media server of embedded Linux shearing system

Publications (2)

Publication Number Publication Date
CN101895729A CN101895729A (en) 2010-11-24
CN101895729B true CN101895729B (en) 2011-12-28

Family

ID=43104775

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102176433A Expired - Fee Related CN101895729B (en) 2010-07-06 2010-07-06 Streaming media server of embedded Linux shearing system

Country Status (1)

Country Link
CN (1) CN101895729B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103676763A (en) * 2013-12-09 2014-03-26 国网电力科学研究院 Method for achieving communication with Siemens S5 PLC based on UNIX platform and LINUX platform
CN104090748B (en) * 2014-05-22 2017-06-06 西安电子科技大学 Source code based on Makefile simplifies the method that device carries out simplifying source code
CN108254694B (en) * 2017-12-27 2020-12-25 深圳市科陆电子科技股份有限公司 Battery working data acquisition method, system and storage medium
CN111193722B (en) * 2019-12-16 2022-02-22 武汉思为同飞网络技术股份有限公司 Linux kernel based accelerated forwarding method, device, equipment and medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1429561A2 (en) * 2002-12-11 2004-06-16 Broadcom Corporation Personal inter-home media exchange network
CN1760851A (en) * 2004-10-12 2006-04-19 国际商业机器公司 Apparatus, system, and method for facilitating management of logical nodes through a single management module
CN101534421A (en) * 2008-03-12 2009-09-16 黄华 Home network monitoring system based on embedded-type security web server
CN101556583A (en) * 2008-04-10 2009-10-14 上海宝康电子控制工程有限公司 Method for efficiently controlling embedded linux file system version
CN201345709Y (en) * 2008-11-26 2009-11-11 陈仲璀 Multi-channel video image structure based on narrower bandwidth transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1429561A2 (en) * 2002-12-11 2004-06-16 Broadcom Corporation Personal inter-home media exchange network
CN1760851A (en) * 2004-10-12 2006-04-19 国际商业机器公司 Apparatus, system, and method for facilitating management of logical nodes through a single management module
CN101534421A (en) * 2008-03-12 2009-09-16 黄华 Home network monitoring system based on embedded-type security web server
CN101556583A (en) * 2008-04-10 2009-10-14 上海宝康电子控制工程有限公司 Method for efficiently controlling embedded linux file system version
CN201345709Y (en) * 2008-11-26 2009-11-11 陈仲璀 Multi-channel video image structure based on narrower bandwidth transmission

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周强,费章君,王强,杨仕友.基于H.264的嵌入式网络视频服务器的设计与开发.《计算机应用》.2010,第30卷(第2期),555-559. *

Also Published As

Publication number Publication date
CN101895729A (en) 2010-11-24

Similar Documents

Publication Publication Date Title
CN103023662B (en) Client dynamic multi-routing feed system of FTTx optical terminal equipment
CN103905281B (en) FC-AE-1553 bus node card capable of interchangeably achieving functions of network controller and network terminal
CN101895729B (en) Streaming media server of embedded Linux shearing system
CN107453849A (en) Power distribution communication network wire link and the mutually standby interlock method of Radio Link and system, vacant lot are mutually for integrated apparatus
CN102567273A (en) Miniature integrated core processor based on fiber channel (FC) network
CN203708279U (en) Special-purpose management type industrial Ethernet switch device for rail traffic
CN105099776A (en) Cloud server management system
CN103399914B (en) Phasor data based on intelligent telecontrol processes system
CN205304857U (en) 10, 000, 000, 000 light network switch
CN204833253U (en) A USB server for cloud calculates
CN203554493U (en) Server remote management interface system
CN201699746U (en) Embedded Linux clipping system based darwin streaming server
CN206460446U (en) A kind of supervising device for ruggedized computer mainboard
CN109861872B (en) Power distribution communication network architecture for improving service quality
CN103731316A (en) Flow monitoring device and method
CN208386579U (en) A kind of 1553B bus detection system based on Ethernet
CN110409117A (en) Intelligent washing machine remotely monitors regulator control system
CN204795120U (en) Split type extensible network message storage device
CN103746717A (en) CFP connector and CFP transmission architecture
CN202750101U (en) Ethernet message processor
CN205829703U (en) The big data platform of power scheduling based on collective and distributive type Cloud Server group
WO2010114440A1 (en) An energy efficient ethernet network node and a method for use in an ethernet network node
CN204334574U (en) Convergent type UNI optical access device
CN204119237U (en) 2GX-4GE management type fiber optical transceiver
CN103455398A (en) Method for avoiding failed information interaction inside and outside belt

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Fei Zhangjun

Inventor after: Chen Feiling

Inventor after: Wang Qiang

Inventor after: Jing Wenlin

Inventor after: Ye Jun

Inventor after: Liu Zhibing

Inventor after: Fu Huaiwen

Inventor before: Fei Zhangjun

Inventor before: Chen Feiling

Inventor before: Wang Qiang

Inventor before: Jing Wenlin

Inventor before: Ye Jun

Inventor before: Liu Zhibing

Inventor before: Fu Huaiwen

C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111228

Termination date: 20140706

EXPY Termination of patent right or utility model