CN104253690B - Data acquire transmission device - Google Patents
Data acquire transmission device Download PDFInfo
- Publication number
- CN104253690B CN104253690B CN201310282030.1A CN201310282030A CN104253690B CN 104253690 B CN104253690 B CN 104253690B CN 201310282030 A CN201310282030 A CN 201310282030A CN 104253690 B CN104253690 B CN 104253690B
- Authority
- CN
- China
- Prior art keywords
- data
- module
- control module
- main control
- user
- 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.)
- Active
Links
Landscapes
- Computer And Data Communications (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The present invention provides a kind of data acquisition transmission device, including safety control module, user interactive module, bar code acquisition module, RF acquisition module, network connecting module and main control module.Main control module and safety control module cooperation carry out safety certification, judge whether to data acquisition and transmission according to the result of safety certification；For through safety certification, main control module controls user interactive module, bar code acquisition module, RF acquisition module and network connecting module work respectively to acquire data, the operational order for receiving user, is transferred to data processing server for the operational order of user and data corresponding with operational order；Not through safety certification, main control module control user interactive module issues the user with safety certification failure information, acquires and transmits without data.The present invention can effectively prevent user's data falsification, altered data, falsely use/data falsification acquisition terminal and using invalid data acquisition terminal upload data.
Description
Technical field
The present invention relates to field of radio frequency identification, acquire transmission device more particularly to a kind of data.
Background technique
For the acquisition and management for realizing a variety of data such as RF tag, bar code, the prior art proposes a variety of data acquisitions eventually
End and data processing system, integrating radio frequency acquisition module, bar code reading module and user interactive module realize the finger according to user
Acquisition data are enabled, and upload the data to server and is managed and stores.There is user in the specific application process and forges number
According to, altered data, falsely use/data falsification acquisition terminal and phenomena such as using invalid data acquisition terminal upload data, existing skill
Art can not authenticate data collection station and user identity, not can guarantee the true and accurate of data.
Summary of the invention
To solve the above-mentioned problems of the prior art, the present invention provides a kind of data acquisition transmission device, comprising: safety
Control module carries out safety certification to above-mentioned data acquisition transmission device jointly with main control module；User interactive module, with user
Interaction, receives the operational order of user and is sent to main control module, exports the processing result from main control module to user；Bar code
Acquisition module, according to the control of main control module, the bar code subsidiary to acquisition target is distinguished, and acquires the Data Concurrent in bar code
Give main control module；RF acquisition module, according to the control of main control module, the RF tag subsidiary to acquisition target is distinguished,
Data Concurrent in acquisition RF tag gives main control module；Network connecting module is established network with data processing server and is connected
It connects, the operational order of the user from main control module and data is transferred to data processing server；Main control module is separately connected
Safety control module, user interactive module, bar code acquisition module, RF acquisition module and network connecting module；With security control
Module cooperation carries out safety certification, judges whether to data acquisition and transmission according to the result of safety certification；For passing through peace
It authenticates entirely, main control module controls user interactive module, bar code acquisition module, RF acquisition module and network connecting module respectively
Work receives the operational order of user to acquire data, and the operational order of user and data corresponding with operational order are transmitted
To data processing server；Not through safety certification, main control module control user interactive module issues the user with safety certification
Failure information is acquired and is transmitted without data.
Preferably, above-mentioned safety control module is point of sales terminal secure access module；Above-mentioned point of sales terminal is deposited safely
Modulus block generates random number and is sent to data acquisition transmission device, and temporarily saves above-mentioned random number；Data acquire transmission device
According to the above-mentioned random number of the cipher key calculation being solidificated in main control module in advance, random number ciphertext is obtained, point of sales terminal is sent to
Secure access module；Point of sales terminal secure access module decrypts above-mentioned random number ciphertext, obtains random number plain text；Point of sale is whole
The random number that end secure access module is saved by above-mentioned random number plain text and temporarily is compared, and comparison result is that the two is consistent then
Main control module show that security certification result is to pass through；Otherwise show that security certification result is not pass through.
Preferably, an above-mentioned at least data acquire transmission device further include: chip bank card distinguishes module, the core with user
Piece bank card connects, and the data in acquisition chip bank card are sent to main control module；Main control module is according to said chip bank card
Data generate proofing chip bank card request, data processing server is sent to by network connecting module；Network connection
Module receives the verification result that data processing server returns, and is sent to main control module；For verification result be by, master control
Module controls the operational order that user interactive module receives user；It is failure for verification result, main control module controls user
The operational order of interactive module rejection user.
Preferably, an above-mentioned at least data acquire transmission device further include: and shooting module receives the control of main control module,
Image, audio and/or video capture are carried out according to user operation instruction, the multi-medium data taken is sent to master control mould
Block.
Preferably, above-mentioned data acquisition transmission device further includes data-interface, is connect by data-interface with printing device；
Operational order of the main control module based on user, data corresponding with operational order, the processing result from data processing server
Document is generated, control printing device prints out above-mentioned document.
Preferably, above-mentioned data acquisition transmission device further includes radio frequency writing module, according to the control of main control module, will be wrapped
It includes the data including the processing result from data processing server and the subsidiary RF tag of above-mentioned acquisition target is written.
Preferably, above-mentioned data acquisition transmission device further includes locating module, according to the control of main control module, receives positioning
Radiofrequency signal, and send it to main control module；
Above-mentioned main control module analysis handles above-mentioned positioning radiofrequency signal and obtains satellite location data, it is referred to aforesaid operations
Association is enabled, above-mentioned data corresponding with operational order are formed.
Preferably, above-mentioned main control module is silver-colored by the data in above-mentioned collected bar code, the data in RF tag, chip
Data, the multi-medium data that takes and/or satellite location data in row card be associated withs with aforesaid operations instruction, formation it is above-mentioned and
The corresponding data of operational order.
Preferably, above-mentioned locating module is realized using GRF3i+ chip.
Preferably, said chip bank card recognition module is realized using special chip NCN6001.
The present invention uses multiple authentication mechanism, acquires transmission device to data and user identity is verified, can effectively prevent
Only user's data falsification, altered data, falsely use/data falsification acquisition terminal and using invalid data acquisition terminal upload data,
Improve data validity and accuracy.
Detailed description of the invention
Fig. 1 is that one embodiment of the invention data acquire transmission device structural schematic diagram；
Fig. 2 is that one embodiment of the invention data acquire transmission device structural schematic diagram；
Fig. 3 is that one embodiment of the invention chip bank card distinguishes modular circuit structural schematic diagram；
Fig. 4 is one embodiment of the invention locating module electrical block diagram.
Specific embodiment
For the technology contents that the present invention will be described in detail, construction feature, the purpose and effect reached, below in conjunction with implementation
Example simultaneously cooperates attached drawing to be described in detail.
The data acquisition transmission device structural schematic diagram shown referring to Fig.1, one embodiment of the invention propose that a kind of data are adopted
Collect transmission device 1, comprising:
Safety control module 101 carries out safety certification to above-mentioned data acquisition transmission device jointly with main control module 106；
User interactive module 102, interacts with user, receives the operational order of user and is sent to main control module 106, Xiang Yong
Family exports the processing result from main control module 106；
Bar code acquisition module 103, according to the control of main control module 106, the bar code subsidiary to acquisition target is distinguished, and is adopted
Data Concurrent in collection bar code gives main control module 106；
RF acquisition module 104, according to the control of main control module 106, the RF tag subsidiary to acquisition target is known
It reads, the Data Concurrent acquired in RF tag gives main control module 106；
Network connecting module 105 is established with data processing server 2 and is connected to the network, by the user from main control module 106
Operational order and data be transferred to data processing server 2；
Main control module 06 is separately connected safety control module 101, user interactive module 102, bar code acquisition module 103, penetrates
Frequency acquisition module 104 and network connecting module 105；Cooperate with safety control module 101 and carry out safety certification, according to safety certification
Result judge whether to data acquisition and transmission；For through safety certification, main control module 106 respectively controls user's friendship
Mutual module 102, bar code acquisition module 103, RF acquisition module 104 and the work of network connecting module 105 are received with acquiring data
The operational order of user and data corresponding with operational order are transferred to data processing server 2 by the operational order of user；Not
Through safety certification, main control module 106 control user interactive module 102 issue the user with safety certification failure information, not into
The acquisition of row data and transmission.
Based on the above embodiment, the present invention proposes that safety control module 101 is point of sales terminal secure access module
(Purchase Secure Access Module, PSAM) solidifies safety verification program and data in advance.Main control module 106 with
The cooperation of safety control module 101 carries out safety certification, only through safety certification, other modules just can control to work, realization is adopted
Collect data and transmission, the certification to data acquisition transmission device 1 is realized by this method, if falsely using/data falsification acquisition terminal
With use invalid data acquisition terminal, in data collection station without configuration safety control module 101, then can not acquire number
According to can not also be transferred to data processing server 2.
Point of sales terminal secure access module generates random number and is sent to main control module 106, and temporarily saves described random
Number；Main control module 106 obtains random number ciphertext according to the preparatory cured above-mentioned random number of cipher key calculation, is sent to point of sale end
Hold secure access module；Point of sales terminal secure access module decrypts above-mentioned random number ciphertext, obtains random number plain text；Point of sale
The random number that terminal security access module is saved by above-mentioned random number plain text and temporarily is compared, and comparison result is that the two is consistent
The signal that safety certification passes through then is issued to main control module 106, otherwise sends the unsanctioned signal of safety certification.Main control module
106 obtain the result of safety certification according to different signals.
Referring to Fig. 2 shows data acquire transmission device structural schematic diagram, the present invention also proposes an embodiment, data acquisition
Transmission device 1 further includes chip bank card recognition module 107, is connect with the chip bank card of user, in acquisition chip bank card
Data, be sent to main control module 106；Main control module 106 is tested according to the data generation in the said chip bank card received
The request for demonstrate,proving chip bank card, is sent to data processing server 2 by network connecting module 105；
Network connecting module 105 receives the verification result that data processing server 2 returns, and is sent to main control module 106；
For verification result be by, main control module 106 control user interactive module 102 receive user operation refer to
It enables；It is failure for verification result, main control module 106 controls the operational order that user interactive module 102 rejects user.
Chip bank card referring to shown in Fig. 3 distinguishes modular circuit structural schematic diagram, and said chip bank card distinguishes module
107 can be used special chip NCN6001 realization.
Based on the above embodiment, it is further proposed that data acquire transmission device 1 further include:
Shooting module 108 receives the control of main control module 106, according to user operation instruction carry out image, audio and/or
The multi-medium data taken is sent to main control module 106 by video capture.
In data, RF tag in 108 acquired image of shooting module, audio and/or video data and bar code
Data in data, chip bank card etc. are the same, handle and transmit as data corresponding with the operational order of user.
Double Camera interfaces can be used in shooting module 108 in the present embodiment, can be controlled by software mode and record view
Switch between frequency and camera function.
Based on another embodiment, data acquisition transmission device 1 of the invention further includes data-interface 109, is connect by data
Mouth is connect with printing device；
Operational order of the main control module 106 based on user, comes from data processing server at data corresponding with operational order
Processing result generate document, printing device is issued by data-interface 109, above-mentioned document is printed out by printing device.
It is further proposed that data acquisition transmission device 1 further includes radio frequency writing module 110, according to main control module 106
The subsidiary radio frequency of above-mentioned acquisition target is written in data including the processing result from data processing server 2 by control
Label.
The acquisition transmission device 11 of the first data with radio frequency writing module 110 can be used in supervisor, will come from data
In the RF tag of the supervision information write-in of the processing result of processing server 2 or supervisor's establishment.Non-administrated personnel hold
The second data acquisition and transmission device 12 do not have radio frequency writing module 110, can not in RF tag processing result and/or
Supervision information is modified.It can be supervised in this way convenient for supervisor, and prevent other users from distorting.
Above-mentioned data acquisition transmission device further includes locating module 111, according to the control of main control module 106, receives positioning
Radiofrequency signal, and send it to main control module 106.The above-mentioned analysis of main control module 106 handles above-mentioned positioning radiofrequency signal and obtains
It is associated with aforesaid operations instruction, forms above-mentioned data corresponding with operational order by satellite location data.
The realization of GRF3i+ chip can be used in locating module electrical block diagram referring to shown in Fig. 4, locating module 111.
Above-mentioned main control module 106 in above-described embodiment by above-mentioned collected bar code data, in RF tag
One of data in data, chip bank card, the multi-medium data taken and/or satellite location data or it is a variety of with it is upper
Operational order association is stated, above-mentioned data corresponding with operational order are formed.
Network connecting module 105 in above-described embodiment using include but is not limited to GSM, CDMA, GPRS, 3G, EDGE,
EVDO, WCDMA, TD-SCDMA, WiFi, WiMAX, IEEE802.11, HomeRF, bluetooth, infrared, HyperLAN/HyperLAN2
Etc. multiple networks mechanics of communication.
Including but not limited to PDF417, QR Code, Data Matrix, Ministry of Agriculture's traceability system two can be used in above-mentioned bar code
Tie up the standards such as code, EAN8, EAN13, CODE39, CODEEAN128A, CODEEAN128B, CODEEAN128C.
Above-mentioned RF tag can be used including but not limited to low frequency (LF): 125~135KHz, high frequency (HF): 13.56MHz,
Hyperfrequency (UHF): one or more frequency ranges such as 433MHz and 860~960MHz.
The operational order of above-mentioned user may is that inquiry, update, alarm, newly-increased, modification, deletion, report, statistics, printing
A variety of instructions such as document.
Based on the above embodiment, the present invention proposes that data acquisition transmission device 1 can be desk-top or hand-held, master control mould
Arm+Mcp (DDR+NANDFlash) modularized design can be used in block 106, saves PCB surface product while improving overall performance.
The power management that data acquire transmission device 1 provides 3 road DC-DC, 5 road LDO and charging, can intelligent management data
1 power distribution of transmission device is acquired, Overall Power Consumption is reduced, extends battery working time.
Data acquisition transmission device of the invention can achieve purpose and effect by the structure of above-mentioned exposure, however more than
Disclosed is only presently preferred embodiments of the present invention, from cannot limit interest field of the invention with this, as of the invention other
Equivalent modification or variation should all be covered in scope of the presently claimed invention.
Claims (7)
1. a kind of data acquire transmission device characterized by comprising
Safety control module carries out safety certification to data acquisition transmission device jointly with main control module；
User interactive module is interacted with user, is received the operational order of user and is sent to main control module, is come to user's output
The processing result of main control module；
Bar code acquisition module, according to the control of main control module, the bar code subsidiary to acquisition target is distinguished, and is acquired in bar code
Data Concurrent gives main control module；
RF acquisition module, according to the control of main control module, the RF tag subsidiary to acquisition target is distinguished, and acquires radio frequency
Data Concurrent in label gives main control module；
Network connecting module is established with data processing server and is connected to the network, by the operational order of the user from main control module
Data processing server is transferred to data；
Main control module is separately connected safety control module, user interactive module, bar code acquisition module, RF acquisition module and net
Network link block；Cooperate with safety control module and carry out safety certification, data are judged whether to according to the result of safety certification
Acquisition and transmission；For through safety certification, main control module controls user interactive module, bar code acquisition module, radio frequency respectively
Acquisition module and network connecting module work to acquire data, receive the operational order of user, by the operational order of user and with
The corresponding data of operational order are transferred to data processing server；Not through safety certification, main control module controls user's interaction
Module issues the user with safety certification failure information, acquires and transmits without data；The main control module is collected described
Bar code in data, the data in RF tag, the data in chip bank card, the multi-medium data taken and/or defend
Star location data is associated with the operational order, forms the data corresponding with operational order；Chip bank card distinguishes module,
It is connect with the chip bank card of user, the data in acquisition chip bank card are sent to main control module；The chip bank card is known
Read through model is realized using special chip NCN6001；Further include data-interface, is connect by data-interface with printing device；Master control
Operational order of the module based on user, data corresponding with operational order, the processing result from data processing server generate
Document, control printing device print out the document.
2. data as described in claim 1 acquire transmission device, it is characterised in that:
The safety control module is point of sales terminal secure access module；
The point of sales terminal secure access module generates random number and is sent to data acquisition transmission device, and temporarily described in preservation
Random number；
Data acquire transmission device random number according to the cipher key calculation being solidificated in main control module in advance, and it is close to obtain random number
Text is sent to point of sales terminal secure access module；
Point of sales terminal secure access module decrypts the random number ciphertext, obtains random number plain text；
The random number that point of sales terminal secure access module is saved by the random number plain text and temporarily is compared, comparison result
For the two, unanimously then main control module show that security certification result is to pass through；Otherwise show that security certification result is not pass through.
3. data as claimed in claim 2 acquire transmission device, which is characterized in that further include:
Chip bank card distinguishes module, connect with the chip bank card of user, the data in acquisition chip bank card are sent to master
Control module；
Main control module generates the request of proofing chip bank card according to the data of the chip bank card, passes through network connecting module
It is sent to data processing server；
Network connecting module receives the verification result that data processing server returns, and is sent to main control module；
For verification result be by, main control module control user interactive module receive user operational order；For verifying
It as a result is failure, main control module controls the operational order of user interactive module rejection user.
4. data as claimed in claim 2 acquire transmission device, which is characterized in that further include:
Shooting module receives the control of main control module, carries out image, audio and/or video capture according to user operation instruction, will
The multi-medium data taken is sent to main control module.
5. the data as described in claim 1-4 any one acquire transmission device, it is characterised in that:
The data acquisition transmission device further includes radio frequency writing module, will include coming from data according to the control of main control module
The subsidiary RF tag of the acquisition target is written in data including the processing result of processing server.
6. the data as described in claim 1-4 any one acquire transmission device, it is characterised in that:
The data acquisition transmission device further includes locating module, according to the control of main control module, receives positioning radiofrequency signal, and
Send it to main control module；
The main control module analysis handles the positioning radiofrequency signal and obtains satellite location data, it is closed with the operational order
Connection forms the data corresponding with operational order.
7. data as claimed in claim 6 acquire transmission device, it is characterised in that:
The locating module is realized using GRF3i+ chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282030.1A CN104253690B (en) | 2013-06-28 | 2013-06-28 | Data acquire transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282030.1A CN104253690B (en) | 2013-06-28 | 2013-06-28 | Data acquire transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104253690A CN104253690A (en) | 2014-12-31 |
| CN104253690B true CN104253690B (en) | 2019-06-21 |
Family
ID=52188258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310282030.1A Active CN104253690B (en) | 2013-06-28 | 2013-06-28 | Data acquire transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104253690B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106803113A (en) * | 2017-01-10 | 2017-06-06 | 深圳市合力思科技有限公司 | A kind of glasses hanging mark and application method |
| CN111258295A (en) * | 2020-01-15 | 2020-06-09 | 重庆长安汽车股份有限公司 | System and method for verifying big data acquisition and uploading accuracy |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914644A (en) * | 2013-01-01 | 2014-07-09 | 深圳鼎识科技有限公司 | Data acquisition and processing system and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161712C (en) * | 1999-09-06 | 2004-08-11 | 李东声 | Method of realizing safe IC card business |
| JP2004040717A (en) * | 2002-07-08 | 2004-02-05 | Matsushita Electric Ind Co Ltd | Equipment authentication system |
| CN102013001B (en) * | 2010-12-06 | 2013-05-01 | 苏州国芯科技有限公司 | Card reader with authentication function and authentication method thereof |
| US20120280788A1 (en) * | 2011-05-05 | 2012-11-08 | Juergen Nowottnick | Communications apparatus and method therefor |
| CN102495994A (en) * | 2011-11-11 | 2012-06-13 | 杨雅婷 | Anti-counterfeiting two-dimensional code scanning device and anti-counterfeiting method |
| CN103326864B (en) * | 2013-06-24 | 2016-03-09 | 詹万泉 | A kind of electronic tag anti-fake authentication method |
-
2013
- 2013-06-28 CN CN201310282030.1A patent/CN104253690B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914644A (en) * | 2013-01-01 | 2014-07-09 | 深圳鼎识科技有限公司 | Data acquisition and processing system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104253690A (en) | 2014-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205281618U (en) | Intelligence two -dimensional code system of opening door | |
| CN103415858B (en) | Mobile solution barcode recognition method and system | |
| CN204204067U (en) | A kind of door-locking system using Quick Response Code certification | |
| CN202443497U (en) | Visitor management system | |
| CN102739874B (en) | Mobile terminal identity authentication unlocking method | |
| CN102930243A (en) | Method and system for identifying facial information of special personnel | |
| CN207267409U (en) | Internet of Things intelligence seal system | |
| CN102385766A (en) | Palmprint-based authentication unlocking method, terminal and system | |
| CN106815733A (en) | Data processing method, device and system and printer | |
| CN103606281A (en) | Vehicle incoming and outgoing behavior detection method for intelligent parking lot | |
| CN107689871A (en) | The Internet of Things mobile terminal veritified with identity and testimony of a witness unification checking method | |
| CN207182429U (en) | A kind of passive response intelligent entrance guard lock system, gate system | |
| CN108985118A (en) | The mobile cruising inspection system of electric power interactive mode based on the close module of RFID and state | |
| CN104253690B (en) | Data acquire transmission device | |
| CN108235290A (en) | A kind of method of the mobile communication terminal user ID in quick and precisely extraction low coverage space | |
| CN207650890U (en) | Intelligent gate and intelligent gate attendance checking system | |
| CN108229950A (en) | A kind of intelligent Service method that mobile communication terminal user based on low coverage space quick and precisely identifies | |
| CN109325333A (en) | A kind of method, apparatus that double identifications are logged in, paid | |
| CN205582026U (en) | Recording system patrols and examines | |
| CN106792512A (en) | A kind of infrared identification alignment system and method for being applied to mobile terminal | |
| Kaushik et al. | Fool Proof ticketing System for public transport | |
| CN103914644B (en) | Data acquisition and processing system and method | |
| CN201111262Y (en) | POS machine arranged on escort car | |
| CN202904677U (en) | A garage management device based on radio frequency identification technology | |
| CN201928293U (en) | Wireless positioning safety certificate system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Ajing Document name: Notification of Passing Examination on Formalities |
|
| CB02 | Change of applicant information |
Address after: 518109 Guangdong province Shenzhen city Longhua District Office waves Huasheng Road No. 45 baohuacheng Industrial Park 1 2 floor Applicant after: Shenzhen Dingshi Science and Technology Co., Ltd. Address before: Futian District Binhe Road in Shenzhen city in Guangdong province Nansha 518048 East Road Central Valley mouth building 6 01-03 Applicant before: Shenzhen Dingshi Science and Technology Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518109, 1 floor, Baohua Industrial Park, 45 Hua Sheng Road, Longhua New District, Shenzhen, Guangdong Province, China 2 Patentee after: Shenzhen Dingzhi Technology Co., Ltd Address before: 518109, 1 floor, Baohua Industrial Park, 45 Hua Sheng Road, Longhua New District, Shenzhen, Guangdong Province, China 2 Patentee before: Shenzhen Dingshi Technology Co.,Ltd. |