CN103019767A - System upgrade method, system upgrade device and airborne entertainment system - Google Patents
System upgrade method, system upgrade device and airborne entertainment system Download PDFInfo
- Publication number
- CN103019767A CN103019767A CN2012104650921A CN201210465092A CN103019767A CN 103019767 A CN103019767 A CN 103019767A CN 2012104650921 A CN2012104650921 A CN 2012104650921A CN 201210465092 A CN201210465092 A CN 201210465092A CN 103019767 A CN103019767 A CN 103019767A
- Authority
- CN
- China
- Prior art keywords
- aku
- upgrade
- parts
- sub
- configuration file
- 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.)
- Granted
Links
Images
Landscapes
- Stored Programmes (AREA)
Abstract
The invention is applicable to the technical field of aviation and provides a system upgrade method, a system upgrade device and an airborne entertainment system. The method comprises the following steps: after receiving an upgrade confirmation instruction, a system copies a first upgrade package to the first directory of a server, wherein the first upgrade package comprises first upgrade sub-packages corresponding to a plurality of components; the components download and extract the corresponding upgrade sub-packages from the server to local directories; the system is restarted; and the components check whether the first upgrade sub-packages exist in the local directories or not after the restarting, if so, the components upgrade by using the first upgrade sub-packages. According to the invention, the integral on-line upgrade of a plurality of components in an AVOD entertainment system is realized, which can greatly reduce operation of a user, lower the maintenance cost and reduce mis-operation.
Description
Technical field
The invention belongs to the aeronautical technology field, relate in particular to a kind of method, device and airborne entertainment systems of system upgrade.
Background technology
No matter be business visitor or leisure passenger, watch aboard film, upgrading social network sites, send and receive e-mail and read text all is a very private again very satisfied thing, and with selecting formula audiovisual service (Audio Video On Demand Service, AVOD) entertainment systems so that everything comes true.
At present, the AVOD entertainment systems comprises flight entertainment system and ground Content Management System, and flight entertainment system comprises: server, cabin management terminal, region allocation box, seat electronic cartridge, control panel, intelligent terminal, passenger's operating grip be totally seven parts.Wherein, the installation site of all parts is different, for example: server is at electronic compartment, and the region allocation box is at the main cabin sidewall, and the seat electronic cartridge is under seat etc., because the parts of upper entertainment systems are more, the physical location of installing differs, and the AVOD product can relate to frequently demand renewal and interface renewal mainly towards the passenger, and this a series of renewal often is not the renewal of single parts, but a plurality of parts cooperate whole updating.Problem for the unified upgrading of each parts in the AVOD system and maintenance exists operation various, and maintenance cost is high, the problems such as misoperation rate height.
In sum, need a kind of method of new system upgrade, solve the operation that faces during the unified upgrading of a plurality of parts in the system variously, maintenance cost is high, the problem that the misoperation rate is high.
Summary of the invention
The embodiment of the invention provides a kind of method, device and airborne entertainment systems of system upgrade, is intended to solve when a plurality of parts unifications are upgraded in the existing system exist operation various, and maintenance cost is high, the problem that the misoperation rate is high.
On the one hand, provide a kind of method of system upgrade, described method comprises:
When system receives upgrading affirmation instruction, the first AKU is copied to the first catalogue of server, described the first AKU comprises the first sub-AKU that a plurality of parts are corresponding;
Each parts is according to the upgrade that receives, and from described server, download the described first sub-AKU that also decompress(ion) is corresponding is to local directory;
Restart described system, described parts check after restarting whether described local directory exists the described first sub-AKU, if so, then use the described first sub-AKU to upgrade.
On the other hand, provide a kind of device of system upgrade, described device comprises:
The AKU setting unit is used for system and receives when upgrading the affirmation instruction, on server, the first AKU is copied to the first catalogue, and described the first AKU comprises the first configuration file, the first sub-AKU and the second configuration file that a plurality of parts are corresponding;
The AKU download unit is used for each parts according to the upgrade that receives, and from described server, download the described first sub-AKU that also decompress(ion) is corresponding is to local directory;
The upgrading unit is used for restarting described system, and described parts check after restarting whether described local directory exists the described first sub-AKU, if so, then use the described first sub-AKU to upgrade.
On the one hand, provide a kind of airborne entertainment systems again, described airborne entertainment systems comprises the device of aforesaid system upgrade.
In the embodiment of the invention, when system receives upgrading affirmation instruction, the first AKU is copied to the first catalogue of server, described the first AKU comprises the first sub-AKU that a plurality of parts are corresponding, each parts is according to the upgrade that receives, from described server, download the described first sub-AKU that also decompress(ion) is corresponding is to local directory, restart described system, described parts check after restarting whether described local directory exists the described first sub-AKU, if so, then use the described first sub-AKU to upgrade the present invention, realized the integral body upgrading of a plurality of parts in the AVOD entertainment systems, can greatly reduce user's operation, reduce maintenance cost, reduce misoperation.
Description of drawings
Fig. 1 is the realization flow figure of the method for the system upgrade that provides of the embodiment of the invention one;
Fig. 2 is the concrete structure block diagram of the device of the system upgrade that provides of the embodiment of the invention two.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
In embodiments of the present invention, when system receives upgrading affirmation instruction, the first AKU is copied to the first catalogue of server, described the first AKU comprises the first sub-AKU that a plurality of parts are corresponding, each parts is according to the upgrade that receives, from described server, download the described first sub-AKU that also decompress(ion) is corresponding is to local directory, restart described system, described parts check after restarting whether described local directory exists the described first sub-AKU, if so, then use the described first sub-AKU to upgrade.
Below in conjunction with specific embodiment realization of the present invention is described in detail:
Embodiment one
Fig. 1 shows the realization flow of the method for the system upgrade that the embodiment of the invention one provides, and details are as follows:
In step S101, when system receives upgrading affirmation instruction, the first AKU is copied to the first catalogue of server, described the first AKU comprises the first sub-AKU that a plurality of parts are corresponding.
It should be noted that, because system upgrade can have influence on selecting formula audiovisual service (Audio Video On Demand Service, AVOD) stability of entertainment systems and functional completeness, all visual, controlled manufacture-illegal is often important in each step key operation, therefore, this method maintainer finishes all parts or independent certain parts updating operation online by the upgrade maintenance page of operation driving cabin office terminal (Cabin management terminal, CMT).
In the present embodiment, described the first catalogue is the catalogue that is preset in stocking system AKU on the server, described the first AKU is the software package of the system upgrade made in advance, described the first AKU comprises the first configuration file, the first sub-AKU and the second configuration file corresponding to a plurality of parts that a plurality of parts are corresponding, wherein, the corresponding first sub-AKU of each parts, corresponding second configuration file of each parts.Described the first configuration file is used for the system version information of record the first AKU, with with the parts version information of all the first sub-AKU of its coupling, described system version information includes but not limited to the system version number of AVOD amusement, name of parts, wherein, name of parts such as smartlcd, the parts version information comprises when being not limited to: piece number, the first child release and Software Edition number, described the second configuration file records the parts version information of single the first sub-AKU, parts version information in the first configuration file, be the summation of all parts version information in the second configuration file, the first child release that both comprise is unified.In the present embodiment and following other embodiment, the version number of the first AKU is first version, and the version number of the first sub-AKU is the first child release.The first AKU is copied to server by described memory device.When detecting its general-purpose interface, CMT have memory device to insert, the system version information and the current system version number that show the first AKU, if both are different, when system receives user's upgrading affirmation instruction, the first AKU is copied to the first catalogue of server, and back up the current system bag, obtain and show first version and the current system version number of the first AKU.Described general-purpose interface comprises USB interface, is convenient to the memory device plug and play.The first version as a whole version number of AKU has guaranteed the uniqueness of this first AKU, also guaranteed the system version uniqueness after the upgrading, as long as there is the first child release of first a sub-AKU to change, then first version also can change thereupon, being first version changes with the variation of the first child release corresponding to the arbitrary first sub-AKU in the first AKU, when system upgrade, all parts can judge whether current version separately is identical with the first child release, if, then do not upgrade, otherwise, carry out software upgrading.That is to say: the parts upgrading that the renewal of the first AKU, first child release that only can have influence on parts have changed, as long as there is the version number of parts to change, current system version number also changes.
Preferably, whether system can also judge identical with first version and the current system version number of described the first configuration file record, and if so, halt system is upgraded, if not, and execution in step S102 then.
In step S102, the guardian is after the upgrade maintenance page of CMT is indicated, and each parts is according to the upgrade that receives, and from described server, download the described first sub-AKU that also decompress(ion) is corresponding is to local directory.
In the present embodiment, after server detects the first new AKU, the guardian sends upgrade by the interface of CMT, each parts is according to the upgrade that receives the guardian, from described server, download the described first sub-AKU that also decompress(ion) is corresponding specifically has two kinds of situations to local directory:
The first situation is, if described upgrade is the first instruction, from described server, download the described first sub-AKU that also all parts of decompress(ion) are corresponding is to local directory;
Concrete, described the first instruction is the instruction of system upgrade, described local directory is installation directory corresponding to all parts.
The second situation is, if described upgrade is the second instruction, from described server, download and the described first sub-AKU that part parts that decompress(ion) is selected are corresponding to local directory.
Concrete, the second instruction is the instruction of system maintenance, comprises the part parts of needs upgrading.
In step S103, restart described system, described parts check after restarting whether described local directory exists the described first sub-AKU, if so, then use the described first sub-AKU to upgrade.
In the present embodiment, whole system restart finish after, all parts detects whether the first sub-AKU of local directory, if so, then uses the described first sub-AKU to upgrade, after the upgrading, current system version number is modified to first version, and the version number of all parts is modified to the first child release, if not, finish upgrading and record updating result, so that the maintainer understands the upgrade case of all parts.
Preferably, can also system detect and the demonstration updating result, wait for whole system all restart finish after, system detects and shows the updating result of all parts, described updating result comprises the first child release of all parts, like this which parts success, which parts failure, concrete failure cause etc. details can show.Afterwards, the guardian also can enter the upgrade maintenance page of CMT, clicking the failed parts of upgrading makes it again upgrade, because the first AKU has copied server to, the parts of upgrading failed are downloaded the first corresponding AKU from server after receiving the order of again upgrading again, restart separately after download is finished and again upgrading, do not affect miscellaneous part, do not load new AKU because CMT does not need to connect memory device again, increased the convenient and dirigibility of operation.Preferably, after detecting and showing updating result, can also system according to the upgrade of cancelling that receives, all parts are returned to upgrading state before.The guardian cancels upgrade by the upgrading interface transmission of driving cabin office terminal, if described upgrade is the first instruction, after the system upgrade, be surrounded by problem if find this first upgrading, version before wanting to return back to, system is according to the upgrade of cancelling that receives, and server can be system's bag of backup directory and the displacement of the first AKU, then notify all parts again to download, all parts are returned to upgrading state before.
Preferably, upgrading finish or day-to-day operation after, if find certain parts damages, system can also read the first child release of described the second configuration file record, judge whether described the first child release mates with current system version number, if not, then according to the independent upgrade that receives, described parts are upgraded.If described the first child release and current system version number do not mate, then the guardian sends independent upgrade by the maintenance interface of driving cabin office terminal, and system upgrades to described parts according to the independent upgrade that receives.
The present embodiment can reach by server and obtain AKU, in the total system upgrading, or the separately on-line automatic upgrading during upgrading of part parts, reduce maintenance cost, reduce misoperation, greatly do not maintain easily the person to the maintenance of AVOD entertainment systems.
Embodiment two
Fig. 2 shows the concrete structure block diagram of the device of the system upgrade that the embodiment of the invention two provides, and for convenience of explanation, only shows the part relevant with the embodiment of the invention.In the present embodiment, the device of this system upgrade comprises: AKU setting unit 21, version judging unit 22, AKU download unit 23, upgrading unit 24, as a result display unit 25, upgrading restoring unit 26 and maintenance upgrade unit 27.
Wherein, AKU setting unit 21 when receiving upgrade for system, on server, is copied to the first catalogue with the first AKU, and described the first AKU comprises the first configuration file, the first sub-AKU and the second configuration file that a plurality of parts are corresponding; Wherein, the first configuration file records the first version of the first AKU, and first version changes with the variation of the first child release corresponding to the arbitrary first sub-AKU;
AKU download unit 23 is used for each parts according to the upgrade that receives, and from described server, download the described first sub-AKU that also decompress(ion) is corresponding is to local directory;
Upgrading unit 24 is used for restarting described system, and described parts check after restarting whether described local directory exists the described first sub-AKU, if so, then use the described first sub-AKU to upgrade;
Upgrading restoring unit 26 is used for system according to the upgrade of cancelling that receives, and all parts are returned to upgrading state before;
The device of the system upgrade that the embodiment of the invention provides can be applied in the embodiment of the method one of aforementioned correspondence, and details do not repeat them here referring to the description of above-described embodiment one.
It should be noted that among the said system embodiment, included unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional unit also just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
In addition, one of ordinary skill in the art will appreciate that all or part of step that realizes in the various embodiments described above method is to come the relevant hardware of instruction to finish by program, corresponding program can be stored in the computer read/write memory medium, described storage medium is such as ROM/RAM, disk or CD etc.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for a system upgrade is characterized in that, described method comprises:
When system receives upgrading affirmation instruction, the first AKU is copied to the first catalogue of server, described the first AKU comprises the first sub-AKU that a plurality of parts are corresponding;
Each parts is according to the upgrade that receives, and from described server, download the described first sub-AKU that also decompress(ion) is corresponding is to local directory;
Restart described system, described parts check after restarting whether described local directory exists the described first sub-AKU, if so, then use the described first sub-AKU to upgrade.
2. the method for claim 1, it is characterized in that, described the first AKU comprises the first configuration file, and described the first configuration file records the first version of described the first AKU, and described first version changes with the variation of the first child release corresponding to the arbitrary first sub-AKU; At described each parts according to the upgrade that receives, from described server, download and the described first sub-AKU that decompress(ion) is corresponding to the local directory, also comprise:
Whether system is judged identical with first version and the current system version number of described the first configuration file record, if so, and the halt system upgrading.
3. method as claimed in claim 1 or 2 is characterized in that, after described use the described first sub-AKU is upgraded, also comprises:
System detects and the demonstration updating result.
4. method as claimed in claim 3 is characterized in that, after described system detects and shows updating result, also comprises:
System returns to upgrading state before according to the upgrade of cancelling that receives with all parts.
5. method as claimed in claim 3 is characterized in that, described the first AKU also comprises the second configuration file that each described parts is corresponding; After described system detects and shows updating result, also comprise:
System reads the first child release of described the second configuration file record, judges that whether described the first child release mates with current system version number, if not, then according to the independent upgrade that receives, upgrades to described parts.
6. the device of a system upgrade is characterized in that, described device comprises:
The AKU setting unit is used for system and receives when upgrading the affirmation instruction, the first AKU is copied to the first catalogue of server, and described the first AKU comprises the first sub-AKU that a plurality of parts are corresponding;
The AKU download unit is used for each parts according to the upgrade that receives, and from described server, download the described first sub-AKU that also decompress(ion) is corresponding is to local directory;
The upgrading unit is used for restarting described system, and described parts check after restarting whether described local directory exists the described first sub-AKU, if so, then use the described first sub-AKU to upgrade.
7. device as claimed in claim 6, it is characterized in that, described the first AKU comprises the first configuration file, and described the first configuration file records the first version of described the first AKU, and described first version changes with the variation of the first child release corresponding to the arbitrary first sub-AKU; Described device also comprises:
Whether the version judging unit is used in described each parts are downloaded and decompress(ion) is corresponding described first sub-AKU to the local directory, judge identically with first version and the current system version number of described the first configuration file record, and if so, halt system is upgraded.
8. such as claim 6 or 7 described devices, it is characterized in that, described device also comprises:
Display unit is used for system's detection and shows updating result as a result.
9. device as claimed in claim 8 is characterized in that, described the first AKU also comprises the second configuration file that each described parts is corresponding, and described device also comprises:
The maintenance upgrade unit is used for the first child release that system reads described the second configuration file record, judges that whether described the first child release mates with current system version number, if not, then according to the independent upgrade that receives, upgrades to described parts.
10. an airborne entertainment systems comprises driving cabin office terminal CMT, server and a plurality of parts, it is characterized in that, described system comprises the device of described each system upgrade of claim 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465092.1A CN103019767B (en) | 2012-11-16 | 2012-11-16 | A kind of method of system upgrade, device and airborne entertainment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465092.1A CN103019767B (en) | 2012-11-16 | 2012-11-16 | A kind of method of system upgrade, device and airborne entertainment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103019767A true CN103019767A (en) | 2013-04-03 |
| CN103019767B CN103019767B (en) | 2016-08-24 |
Family
ID=47968401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210465092.1A Active CN103019767B (en) | 2012-11-16 | 2012-11-16 | A kind of method of system upgrade, device and airborne entertainment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103019767B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103218244A (en) * | 2013-05-17 | 2013-07-24 | 烽火通信科技股份有限公司 | Software updating and upgrading method of communication equipment |
| CN107357557A (en) * | 2016-05-09 | 2017-11-17 | 阿里巴巴集团控股有限公司 | A kind of information updating method and device |
| CN109343885A (en) * | 2018-11-01 | 2019-02-15 | 百度在线网络技术（北京）有限公司 | Method for upgrading system and multi-system equipment |
| CN110597544A (en) * | 2019-08-20 | 2019-12-20 | 杭州辰汉智能科技有限公司 | Software system upgrading method and device |
| CN110865826A (en) * | 2018-08-27 | 2020-03-06 | 北京猎户星空科技有限公司 | Robot software upgrading method, device, equipment and storage medium |
| CN111142908A (en) * | 2019-12-26 | 2020-05-12 | 北京悦航天翼电子信息技术有限公司 | Data updating system and method for portable airborne entertainment system |
| WO2021098212A1 (en) * | 2019-11-18 | 2021-05-27 | 华为技术有限公司 | Software upgrade method, apparatus and system |
| WO2022188069A1 (en) * | 2021-03-10 | 2022-09-15 | 华为技术有限公司 | Method and apparatus for acquiring license information, and storage medium and chip system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937348A (en) * | 2010-08-20 | 2011-01-05 | 四川长虹电器股份有限公司 | TV software online increment updating method |
| CN102387165A (en) * | 2010-08-27 | 2012-03-21 | 腾讯科技（深圳）有限公司 | System and method for upgrading software |
-
2012
- 2012-11-16 CN CN201210465092.1A patent/CN103019767B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937348A (en) * | 2010-08-20 | 2011-01-05 | 四川长虹电器股份有限公司 | TV software online increment updating method |
| CN102387165A (en) * | 2010-08-27 | 2012-03-21 | 腾讯科技（深圳）有限公司 | System and method for upgrading software |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103218244A (en) * | 2013-05-17 | 2013-07-24 | 烽火通信科技股份有限公司 | Software updating and upgrading method of communication equipment |
| CN103218244B (en) * | 2013-05-17 | 2016-06-22 | 烽火通信科技股份有限公司 | The software upgrading upgrade method of communication equipment |
| CN107357557A (en) * | 2016-05-09 | 2017-11-17 | 阿里巴巴集团控股有限公司 | A kind of information updating method and device |
| CN107357557B (en) * | 2016-05-09 | 2021-01-26 | 创新先进技术有限公司 | Information updating method and device |
| CN110865826A (en) * | 2018-08-27 | 2020-03-06 | 北京猎户星空科技有限公司 | Robot software upgrading method, device, equipment and storage medium |
| CN110865826B (en) * | 2018-08-27 | 2024-02-02 | 北京猎户星空科技有限公司 | Robot software upgrading method, device, equipment and storage medium |
| CN109343885A (en) * | 2018-11-01 | 2019-02-15 | 百度在线网络技术（北京）有限公司 | Method for upgrading system and multi-system equipment |
| CN110597544A (en) * | 2019-08-20 | 2019-12-20 | 杭州辰汉智能科技有限公司 | Software system upgrading method and device |
| WO2021098212A1 (en) * | 2019-11-18 | 2021-05-27 | 华为技术有限公司 | Software upgrade method, apparatus and system |
| US11972247B2 (en) | 2019-11-18 | 2024-04-30 | Huawei Technologies Co., Ltd. | Software upgrading method, apparatus, and system |
| CN111142908A (en) * | 2019-12-26 | 2020-05-12 | 北京悦航天翼电子信息技术有限公司 | Data updating system and method for portable airborne entertainment system |
| WO2022188069A1 (en) * | 2021-03-10 | 2022-09-15 | 华为技术有限公司 | Method and apparatus for acquiring license information, and storage medium and chip system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103019767B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103019767A (en) | System upgrade method, system upgrade device and airborne entertainment system | |
| JP6463393B2 (en) | Tenant data recovery across tenant migration | |
| US8676763B2 (en) | Remote data protection in a networked storage computing environment | |
| CN103380423B (en) | For the system and method for private cloud computing | |
| CN104487960B (en) | Automated disaster recovery and Data Migration | |
| JP2004533032A (en) | System and method for constructing a host computer | |
| CN103597463A (en) | Automatic configuration of a recovery service | |
| CN101647013B (en) | Bookmark and configuration file for installation sequence | |
| CN103608781A (en) | Recovery service location for a service | |
| CN103425468B (en) | Plug-in type software integrating method and device | |
| CN102938784A (en) | Method and system used for data storage and used in distributed storage system | |
| CN103080902A (en) | Information processing apparatus and update process support system | |
| CN101436209B (en) | Method and apparatus for synchronizing multiple databases | |
| CN101523358A (en) | Fast and reliable synchronization of file system directories | |
| CN102200921A (en) | Intelligent boot device selection and recovery | |
| CN105723363A (en) | Master schema shared across multiple tenants with dynamic update | |
| CN103036986A (en) | Update notification provided on distributed application object | |
| CN101651669A (en) | Service box integration server and service box integration method | |
| CN104040525A (en) | Accessing overlay media over a network connection | |
| CN100430917C (en) | Method for self-constructing group operating system core and intelligent constructor | |
| CN107122630B (en) | Equipment authorization management method and device | |
| CN102955706A (en) | Installing method and boot loading method for dual operation system | |
| US20180144108A1 (en) | License management system and license management method | |
| CN103327108A (en) | Cross-platform software management platform based on cloud and construction method thereof | |
| US20090024672A1 (en) | System for synchronization of configuration values between a data base and its input utility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200201 Address after: 518000 Guangzhou Nanshan Nantou Street Pass No. 2 Zhiheng Strategic Emerging Industrial Park, 1 Building and 1 Floor Patentee after: Shenzhen city many Nica avionics Co., Ltd. Address before: 518000, Guangdong, Nanshan District, Shenzhen hi tech Industrial Park (North District), 2 dream Creek Road, 6 cool information port, 3 floor Patentee before: DONICA AVIATION ENGINEERING Co.,Ltd. |