CN111640239B - Public transit device of punching a yard for electronic commerce data encryption based on silicon controlled rectifier principle - Google Patents
Public transit device of punching a yard for electronic commerce data encryption based on silicon controlled rectifier principle Download PDFInfo
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- CN111640239B CN111640239B CN202010513232.2A CN202010513232A CN111640239B CN 111640239 B CN111640239 B CN 111640239B CN 202010513232 A CN202010513232 A CN 202010513232A CN 111640239 B CN111640239 B CN 111640239B
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- code
- silicon controlled
- card
- electronic commerce
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10237—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the reader and the record carrier being capable of selectively switching between reader and record carrier appearance, e.g. in near field communication [NFC] devices where the NFC device may function as an RFID reader or as an RFID tag
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
- G07F7/1016—Devices or methods for securing the PIN and other transaction-data, e.g. by encryption
Abstract
The invention relates to the technical field of electronic commerce data encryption, and discloses a public traffic code swiping device for electronic commerce data encryption based on a silicon controlled rectifier principle, which comprises a card swiping device, wherein the lower end of the code swiping device is connected with a magnetic block, the left side and the right side of the magnetic block are both provided with coils, and a cross rod comprises: cylindrical hole and photo resistance, the right-hand member of slide is provided with the metal ball, and the right side of placing the box is provided with the sheetmetal that corresponds with the metal ball, is provided with the metal group between the rear end of movable plate and the ware of punching the card, and the device electric connection that punches a yard has the silicon controlled rectifier. When the voltage is activated at the g end and the c end of the controllable silicon, the code brushing device works; the voltage of the g end and the c end of the silicon controlled rectifier is removed, the code brushing device can still be electrified to work, the moving plate moves forwards under the action of inertia of the automobile when the automobile starts, metal components on the moving plate are separated, and the code brushing device finishes working.
Description
Technical Field
The invention relates to the technical field of electronic commerce data encryption, in particular to a public traffic code swiping device for electronic commerce data encryption based on a silicon controlled rectifier principle.
Background
The encryption technology is the main security measure adopted by electronic commerce, is the most common security measure, changes important data into messy codes by using technical measures to be transmitted, and restores the messy codes by using the same or different measures after the important data reaches a destination. Electronic commerce requires that customers can conduct various business activities on the internet without worrying that their credit cards are stolen by someone. In the past, users have generally ordered a purchase by telephone in order to prevent the credit card number from being stolen and then paid using the user's credit card. People now use the encryption technology of RSA to improve the security of credit card transactions, thereby making electronic commerce practical.
The existing e-commerce bus code swiping device has too single function, only plays the roles of swiping a card and swiping a code, but in the process of collecting and swiping the code by passengers, the code swiping fails for many times due to hand shaking and inclination of holding of a mobile phone, so that the code swiping efficiency is low, and further subsequent passenger congestion and traffic jam are caused; in addition, the existing code scanning device is always kept in an open state, so that excessive waste of unused electric power is caused, and in order to solve the problem, the public transport code scanning device for electronic commerce data encryption based on the silicon controlled rectifier principle is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a public traffic code swiping device for electronic commerce data encryption based on the silicon controlled principle, which has the advantages of high code scanning efficiency, automatic code scanning, electric power saving and traffic jam avoidance, and solves the problems that the existing public traffic code swiping device for electronic commerce has low code scanning efficiency, needs to be held by hands and automatically scans codes, wastes electric power and is easy to cause traffic jam.
(II) technical scheme
In order to realize the purposes of high code scanning efficiency, automatic code scanning, electric power saving and traffic jam avoidance, the invention provides the following technical scheme: a public transportation code swiping device for encrypting electronic commerce data based on the silicon controlled rectifier principle comprises a card swiping device, wherein a card swiping area is arranged on the front side of the upper portion of the card swiping device, an inclined area is fixedly connected to the front side of the lower portion of the card swiping device, a guide groove and a moving groove are sequentially formed in the front side of the inclined area from top to bottom, a display area is arranged on the front side of the upper portion of the inclined area, a code swiping device is connected in the inclined area in the guide groove in a sliding mode, a magnetic block is fixedly connected to the lower end of the code swiping device in the moving groove, coils corresponding to the magnetic block are arranged on the left side and the right side of the inclined area, a solar panel is arranged on the rear surface of the card swiping device, a placing box is fixedly connected to the front side of the lower portion of the inclined area, rubber pads are arranged on the inner side wall of the placing box, sliding grooves are formed in the left side and the right side of the inner portion of the placing box, a transparent plate is arranged between the placing box and the inclined area, and a cross rod is fixedly connected to the inner side wall of the upper portion of the placing box, the horizontal pole includes: cylindrical hole and photo resistance, the inside of placing the box and sliding connection has the slide in the spout, the right-hand member of slide is provided with the metal ball, the upper surface of slide is provided with the cushion, the lower extreme of slide and place the first spring of fixedly connected with between the box, the right side of placing the box is provided with the sheetmetal that corresponds with the metal ball, the inside sliding connection of ware of punching the card has the movable plate, fixedly connected with second spring between the front end of movable plate and the ware of punching the card, be provided with the metal group between the middle part rear end of movable plate and the ware of punching the card, it has the silicon controlled rectifier to punch a yard device electric connection.
Preferably, the height of the magnetic block corresponds to the height of the moving groove; the lower part of the code brushing device corresponds to the guide groove, so that the magnetic block drives the code brushing device to stably move.
Preferably, the magnetic fields generated by the coils on the left side and the right side are the same as the magnetic poles of the magnetic blocks on the opposite surfaces, so that the coils can push the magnetic blocks to move.
Preferably, the transparent plate is a concave type which is deviated to one side of the code brushing device, so that the whole image of the two-dimensional code on the mobile phone is amplified.
Preferably, the inside in cylindricality hole all is provided with the photo resistance, and cylindricality hole sets up for the slope is followed to the slope to guarantee that the photo resistance does not receive the influence of placing the external light of box upside.
(III) advantageous effects
Compared with the prior art, the invention provides a public traffic code swiping device for electronic commerce data encryption based on the silicon controlled principle, which has the following beneficial effects:
1. according to the public traffic code swiping device for encrypting electronic commerce data based on the silicon controlled rectifier principle, a mobile phone drives the mobile phone to move downwards by squeezing a sliding plate, a metal ball at the right end of the sliding plate is in contact with a metal sheet, a switch at the position K is closed, the silicon controlled rectifier is electrified, and the code swiping device starts to work; when the bright screen of cell-phone was through cylindrical hole, the inside photo resistance of cylindrical hole received illumination, photo resistance's resistance reduces rapidly, photo resistance place circuit has the electric current, it passes through to have the electric current in the coil about with the photo resistance series connection, it produces magnetic field respectively to control the coil, it is different at the horizontal pole left and right sides position according to the bright screen of cell-phone, the magnetic field intensity that the coil produced about controls is different, it adjusts the position alignment with the bright screen of cell-phone through promoting the magnetic path to control the coil, this structure has reached and has walked to that aim at the bright screen of cell-phone purpose, thereby solved current public transit brush yard device for electronic commerce and swept yard inefficiency, need handheld automatic yard and the problem that leads to the traffic jam.
2. This public transit device of punching a yard for encryption of electronic commerce data based on silicon controlled rectifier principle is provided with solar panel through the rear surface of ware of punching a card, and solar panel turns into solar energy light energy electric energy storage and gets up to punching a yard device and coil carry out the function, this structure has reached the purpose of power supply, thereby has solved the current public transit device of punching a yard for electronic commerce power waste too much problem.
3. According to the public traffic code brushing device for encrypting the electronic commerce data based on the silicon controlled rectifier principle, according to the characteristics of the silicon controlled rectifier, when K is closed, the code brushing device does not work, and when K is closed, and when voltages are activated at the g end and the c end of the silicon controlled rectifier, the code brushing device can be electrified to work; if the voltages of the g end and the c end of the controlled silicon are removed, the code swiping device can still be electrified to work, and the structure achieves the purpose that the code swiping device is electrified when in use; when the code brushing device is not used, objects on the automobile have certain inertia through starting of the automobile, at the moment, the movable plate moves forwards through the second spring under the action of the inertia of the automobile, at the moment, metal components on the movable plate are separated, namely K is disconnected, the code brushing device is finished, and the structure achieves the purpose of automatically controlling the code brushing device to work, so that the problem of electric power waste of the conventional public transport code brushing device for electronic commerce is solved.
Drawings
FIG. 1 is a schematic perspective view of a conventional card reader;
FIG. 2 is a schematic perspective view of the card reader of the present invention;
FIG. 3 is a front sectional view of the storage case of the present invention;
FIG. 4 is a cross-sectional view of the structure of FIG. 2 taken along line A-A thereof in accordance with the present invention;
FIG. 5 is a cross-sectional view of the structure of FIG. 2 taken along line B-B in accordance with the present invention;
FIG. 6 is a schematic diagram showing the relationship between the SCR circuits according to the present invention;
FIG. 7 is a diagram showing the relationship between the photo-resistor and the coil circuit according to the present invention.
In the figure: 1 card reader, 2 card reading areas, 3 inclined areas, 301 guide grooves, 302 moving grooves, 4 display areas, 5 code reading devices, 6 magnetic blocks, 7 coils, 8 solar panels, 9 placing boxes, 901 rubber pads, 902 sliding grooves, 10 transparent plates, 11 cross bars, 1101 cylindrical holes, 1102 photoresistors, 12 sliding plates, 1201 metal balls, 1202 soft pads, 13 first springs, 14 metal sheets, 15 moving plates, 16 second springs, 17 metal groups and 18 silicon controlled rectifiers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, a public transportation code swiping device for electronic commerce data encryption based on the silicon controlled rectifier principle comprises a card swiping device 1, wherein a card swiping area 2 is arranged on the front side of the upper portion of the card swiping device 1, an inclined area 3 is fixedly connected to the front side of the lower portion of the card swiping device 1, a guide groove 301 and a moving groove 302 are sequentially formed in the front side of the inclined area 3 from top to bottom, a display area 4 is arranged on the front side of the upper portion of the inclined area 3, a code swiping device 5 is connected in the inclined area 3 and in the guide groove 301 in a sliding mode, a magnetic block 6 is fixedly connected to the lower end of the code swiping device 5 and in the moving groove 302, and the height of the magnetic block 6 corresponds to the height of the moving groove 302; the lower part of the code brushing device 5 corresponds to the guide groove 301, so that the magnetic block 6 drives the code brushing device 5 to stably move. The left side and the right side of the inclined area 3 are both provided with coils 7 corresponding to the magnetic blocks 6, and magnetic fields generated by the coils 7 on the left side and the right side are the same as the magnetic poles of the magnetic blocks 6 on the opposite surfaces, so that the coils 7 are ensured to push the magnetic blocks 6 to move. The rear surface of the card reader 1 is provided with a solar panel 8, the box 9 is placed to the lower part front end fixedly connected with of inclined area 3, the inside wall of placing the box 9 is provided with a rubber pad 901, and the inside left and right sides of placing the box 9 are provided with chutes 902.
A transparent plate 10 is arranged between the placing box 9 and the inclined area 3, and the transparent plate 10 is a concave shape which is deviated to one side of the code brushing device 5, so that the whole image of the two-dimensional code on the mobile phone is amplified. Place upper portion inside wall fixedly connected with horizontal pole 11 of box 9, horizontal pole 11 includes: cylindrical hole 1101 and photo resistor 1102, the inside in cylindrical hole 1101 all is provided with photo resistor 1102, and cylindrical hole 1101 is the slope downward direction setting to guarantee that photo resistor 1102 does not receive the influence of placing box 9 upside external light. Place the inside of box 9 and sliding connection has slide 12 in spout 902, the right-hand member of slide 12 is provided with metal ball 1201, the upper surface of slide 12 is provided with cushion 1202, the lower extreme of slide 12 and place the first spring 13 of fixedly connected with between the box 9, the right side of placing box 9 is provided with the sheetmetal 14 that corresponds with metal ball 1201, the inside sliding connection of ware 1 of punching the card has movable plate 15, fixedly connected with second spring 16 between the front end of movable plate 15 and the ware 1 of punching the card, be provided with metal group 17 between the middle part rear end of movable plate 15 and the ware 1 of punching the card, it has silicon controlled rectifier 18 to punch a yard device 5 electrically connected with.
As shown in the circuit connection diagram of fig. 6, terminals a and c of the silicon control 18 are connected in series with K2, and terminals g and c of the silicon control 18 are connected in series with K1, as shown in fig. 7; the plurality of photo resistors 1102 are connected in parallel and are all connected in series with the coil 7.
The working principle is as follows: when the public traffic code swiping device for encrypting electronic commerce data based on the silicon controlled rectifier principle is used, a passenger opens a mobile phone to pay a two-dimensional code, then the mobile phone is placed in the placing box 9 and is driven to move downwards by squeezing the sliding plate 12, the metal ball 1201 at the right end of the sliding plate 12 is in contact with the metal sheet 14, at the moment, a switch at the K1 is closed, the silicon controlled rectifier 18 is powered on, and the code swiping device 5 starts to work; meanwhile, when a lighted screen of the mobile phone passes through the cylindrical hole 1101, the photoresistor 1102 in the cylindrical hole 1101 is illuminated, the resistance of the photoresistor 1102 is rapidly reduced, at the moment, the circuit where the photoresistor 1102 is located has current, the current passes through the left coil 7 and the right coil 7 which are connected with the photoresistor 1102 in series, the left coil 7 and the right coil 7 respectively generate magnetic fields, the magnetic field intensity generated by the left coil 7 and the right coil 7 is different according to the left position and the right position of the mobile phone bright screen at the left position and the right position of the cross bar 11, the left coil 7 and the right coil 7 are adjusted to be aligned with the position of the mobile phone bright screen by pushing the magnetic block 6, and the structure achieves the aim of walking to the mobile phone bright screen, so that the problems that the existing public traffic code brushing device for electronic commerce is low in code scanning efficiency, needs to be held by hands to automatically scan codes and traffic jam is easily caused are solved.
The solar panel 8 is arranged on the rear surface of the card reader 1, solar energy is converted into electric energy by the solar panel 8 to be stored, the code swiping device 5 and the coil 7 are subjected to functions, the structure achieves the purpose of power supply, and the problem that the conventional public transport code swiping device for electronic commerce is too much in power waste is solved.
According to the characteristics of the thyristors, as shown in the circuit connection relationship of fig. 6, when the K2 is closed, the code swiping device 5 does not work, when the K1 is closed, the g end and the c end of the thyristor 18 have voltages activated, the code swiping device 5 can be electrified to work, at this time, if the voltages of the g end and the c end of the thyristor 18 are removed, the code swiping device 5 can still be electrified to work, and the structure achieves that the code swiping device 5 is electrified when in use; when the code brushing device 5 is not used, objects on the automobile have certain inertia through starting of the automobile, at the moment, the moving plate 15 moves forwards through the second spring 16 under the action of the inertia of the automobile, at the moment, the metal group 17 on the moving plate 15 is separated, namely K2 is disconnected, at the moment, the code brushing device 5 finishes working, and the structure achieves the purpose of automatically controlling the code brushing device 5 to work, so that the problem of power waste of the conventional public transportation code brushing device for electronic commerce is solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an electronic commerce data encryption is with public transit device of punching a code based on silicon controlled rectifier principle, includes ware (1) of punching a card, its characterized in that: a card swiping area (2) is arranged on the front side of the upper portion of the card swiping device (1), an inclined area (3) is fixedly connected to the front side of the lower portion of the card swiping device (1), a guide groove (301) and a moving groove (302) are sequentially formed in the front side of the inclined area (3) from top to bottom, a display area (4) is arranged on the front side of the upper portion of the inclined area (3), a code swiping device (5) is connected in the inclined area (3) and in the guide groove (301) in a sliding mode, a magnetic block (6) is fixedly connected to the lower end of the code swiping device (5) and in the moving groove (302), coils (7) corresponding to the magnetic block (6) are arranged on the left side and the right side of the inclined area (3), a solar panel (8) is arranged on the rear surface of the card swiping device (1), a placing box (9) is fixedly connected to the front side of the lower portion of the inclined area (3), and rubber pads (901) are arranged on the inner side wall of the placing box (9), place the inside left and right sides of box (9) and all seted up spout (902), place and be provided with transparent plate (10) between box (9) and slope district (3), place upper portion inside wall fixedly connected with horizontal pole (11) of box (9), horizontal pole (11) include: cylindrical hole (1101) and photo resistance (1102), place the inside of box (9) and sliding connection has slide (12) in spout (902), the right-hand member of slide (12) is provided with metal ball (1201), the upper surface of slide (12) is provided with cushion (1202), the lower extreme of slide (12) and place the first spring (13) of fixedly connected with between box (9), the right side of placing box (9) is provided with sheetmetal (14) that correspond with metal ball (1201), the inside sliding connection of ware (1) of punching the card has movable plate (15), fixedly connected with second spring (16) between the front end of movable plate (15) and ware (1) of punching the card, be provided with metal group (17) between the middle part rear end of movable plate (15) and ware (1) of punching the card, it has silicon controlled rectifier (18) to punch a yard device (5) electrically connected with.
2. The public traffic code swiping device for electronic commerce data encryption based on the silicon controlled principle as claimed in claim 1, wherein: the height of the magnetic block (6) corresponds to that of the moving groove (302); the lower part of the code brushing device (5) corresponds to the guide groove (301).
3. The public traffic code swiping device for electronic commerce data encryption based on the silicon controlled principle as claimed in claim 1, wherein: the magnetic fields generated by the coils (7) on the left side and the right side are the same as the magnetic poles of the magnetic blocks (6) on the opposite surfaces.
4. The public traffic code swiping device for electronic commerce data encryption based on the silicon controlled principle as claimed in claim 1, wherein: the transparent plate (10) is a concave shape which is deviated to one side of the code brushing device (5).
5. The public traffic code swiping device for electronic commerce data encryption based on the silicon controlled principle as claimed in claim 1, wherein: the cylindrical holes (1101) are internally provided with the photoresistors (1102), and the cylindrical holes (1101) are arranged in the inclined downward direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010513232.2A CN111640239B (en) | 2020-06-08 | 2020-06-08 | Public transit device of punching a yard for electronic commerce data encryption based on silicon controlled rectifier principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010513232.2A CN111640239B (en) | 2020-06-08 | 2020-06-08 | Public transit device of punching a yard for electronic commerce data encryption based on silicon controlled rectifier principle |
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| Publication Number | Publication Date |
|---|---|
| CN111640239A CN111640239A (en) | 2020-09-08 |
| CN111640239B true CN111640239B (en) | 2021-12-07 |
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| CN202010513232.2A Active CN111640239B (en) | 2020-06-08 | 2020-06-08 | Public transit device of punching a yard for electronic commerce data encryption based on silicon controlled rectifier principle |
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Citations (7)
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| GB0230105D0 (en) * | 2002-01-03 | 2003-01-29 | Enston Richard G | Automated transmission machine card security system |
| KR20180065084A (en) * | 2016-12-06 | 2018-06-18 | 인포크립트 주식회사 | Card payment terminal using tethering deal of a wireless communication terminal |
| CN207909199U (en) * | 2018-01-24 | 2018-09-25 | 广州市公共交通数据管理中心 | Bus card-reading machine with code reader |
| CN208834386U (en) * | 2018-11-01 | 2019-05-07 | 晓白科技(吉林)有限公司 | A kind of terminating machine based on IC card identification |
| CN110110571A (en) * | 2019-04-28 | 2019-08-09 | 维沃移动通信有限公司 | A kind of barcode scanning method and mobile terminal |
| CN209312100U (en) * | 2019-02-26 | 2019-08-27 | 广州联盈电子制造有限公司 | Bus mobile payment charging terminal |
| CN209545656U (en) * | 2019-03-11 | 2019-10-25 | 上海商睿智能科技有限公司 | A kind of barcode scanning payment code reader convenient for mobile phone alignment |
-
2020
- 2020-06-08 CN CN202010513232.2A patent/CN111640239B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0230105D0 (en) * | 2002-01-03 | 2003-01-29 | Enston Richard G | Automated transmission machine card security system |
| KR20180065084A (en) * | 2016-12-06 | 2018-06-18 | 인포크립트 주식회사 | Card payment terminal using tethering deal of a wireless communication terminal |
| CN207909199U (en) * | 2018-01-24 | 2018-09-25 | 广州市公共交通数据管理中心 | Bus card-reading machine with code reader |
| CN208834386U (en) * | 2018-11-01 | 2019-05-07 | 晓白科技(吉林)有限公司 | A kind of terminating machine based on IC card identification |
| CN209312100U (en) * | 2019-02-26 | 2019-08-27 | 广州联盈电子制造有限公司 | Bus mobile payment charging terminal |
| CN209545656U (en) * | 2019-03-11 | 2019-10-25 | 上海商睿智能科技有限公司 | A kind of barcode scanning payment code reader convenient for mobile phone alignment |
| CN110110571A (en) * | 2019-04-28 | 2019-08-09 | 维沃移动通信有限公司 | A kind of barcode scanning method and mobile terminal |
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| CN111640239A (en) | 2020-09-08 |
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Effective date of registration: 20211119 Address after: 318000 Luoyang Street Nanshan village, Luqiao District, Taizhou City, Zhejiang Province Applicant after: Taizhou Jiuyi Technology Co.,Ltd. Address before: 310002 room 1308, 13th floor, 288 Jianguo South Road, Shangcheng District, Hangzhou City, Zhejiang Province (trusteeship 295) Applicant before: Hangzhou Yasong Technology Co.,Ltd. |
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