CN110060396B - Shopping cart fingerprint unlocking system and method - Google Patents
Shopping cart fingerprint unlocking system and method Download PDFInfo
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- CN110060396B CN110060396B CN201910301838.7A CN201910301838A CN110060396B CN 110060396 B CN110060396 B CN 110060396B CN 201910301838 A CN201910301838 A CN 201910301838A CN 110060396 B CN110060396 B CN 110060396B
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0603—Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving rectilinearly
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention relates to a shopping cart fingerprint unlocking system, which is characterized in that: including central control unit STM, GPS orientation module, wireless communication module, fingerprint unlocking device, fingerprint identification module, pronunciation warning module, battery module, backstage management system and cell phone terminal, central control unit STM is connected with GPS orientation module, wireless communication module, fingerprint identification module, pronunciation warning module, fingerprint unlocking device and battery module respectively, wireless communication module is connected with backstage management system and cell phone terminal respectively, and backstage management system and cell phone terminal are connected for the transmission of information between backstage management system and the cell phone terminal. By using the fingerprint unlocking mode of the shopping cart, the shopping of a user is fast and convenient, the problem of disordered parking of the shopping cart is effectively solved, the management cost of workers is reduced, and the use efficiency is improved.
Description
Technical Field
The invention relates to the field of fingerprint unlocking, in particular to a shopping cart fingerprint unlocking system and method.
Background
At present, shopping trolleys, namely shopping trolleys, are widely applied to places such as supermarkets, markets and the like, and bring great convenience to consumers. However, for a large supermarket, the shopping carts are numerous, most consumers cannot voluntarily push the shopping carts to a designated place after using the shopping carts, so that the workload of the shopping cart management personnel for arranging the carts is increased, and the shopping carts are lost or damaged frequently, so that unnecessary economic loss is caused to merchants.
Aiming at the phenomenon, a coin-operated lock installed on a shopping cart appears in the market nowadays, the shopping cart is taken out in a coin-operated mode, meanwhile, the shopping cart needs to be parked to a specified position after being used up, and the coin is taken out through a lock opener on the previous shopping cart. However, such coin locks have limitations in practical use, and they can only be opened by directly using a single coin size. On the one hand, as the electronic payment means becomes the mainstream mode of payment in the current society, people do not need to take coins or paper money when going out, and therefore a user without coins cannot open the coin lock of the shopping cart. On the other hand, the lost and messy shopping cart cannot be found accurately, the situation that the supermarket shopping cart is stolen also happens occasionally, and the loss of the shopping cart causes great economic loss to merchants.
Fingerprints have lifetime invariance and uniqueness, and are almost the pronoun of biometric identification. The fingerprint unlocking technology has rapidity and reliability, the fingerprint acquisition module is gradually miniaturized, and the price is lower. Fingerprint unlocking is the standard configuration of 4G mobile phones at present, and the breakthrough development of unlocking and payment technology is driven.
Disclosure of Invention
The invention aims to provide a shopping cart fingerprint unlocking system and a shopping cart fingerprint unlocking method.
In order to solve the technical problems, the technical scheme of the invention is to provide a shopping cart fingerprint unlocking system, which has the innovation points that: including central control unit STM, GPS orientation module, wireless communication module, fingerprint unlocking device, fingerprint identification module, pronunciation warning module, battery module, backstage management system and cell phone terminal, central control unit STM is connected with GPS orientation module, wireless communication module, fingerprint identification module, pronunciation warning module, fingerprint unlocking device and battery module respectively, wireless communication module is connected with backstage management system and cell phone terminal respectively for central control unit STM comes to communicate with cell phone terminal and backstage management system respectively through wireless communication module, backstage management system and cell phone terminal connect for the transmission of information between backstage management system and the cell phone terminal.
Furthermore, the fingerprint unlocking device comprises a base, a fingerprint module, a lock pin insertion hole, a shopping cart side lever, a side lever connecting seat, a shopping cart cross lever, a circular metal ring and a chain, wherein the shopping cart cross lever is fixedly connected with the shopping cart side lever, a side lever connecting seat is sleeved on the periphery of the shopping cart side lever, the base is fixedly arranged on the cross lever, and one side of the base, which is close to the shopping cart side lever, is connected with the side lever connecting seat; the fingerprint module is arranged on the base, the lock pin insertion hole is formed in the rear side of the base, a circular metal ring is fixedly arranged on the upper surface of the base, one end of a chain is connected to the circular metal ring, and the other end of the chain is connected with a lock pin;
the structure inside the base is as follows: the motor is mounted above the lock pin insertion hole, one side of the motor is fixed on the side wall of the base, the other side of the motor is in transmission connection with one end of the transmission shaft, the other end of the transmission shaft is connected with one end of the leather rope, the other end of the leather rope is fixedly connected onto the first baffle, the first baffle is arranged below the other end of the transmission shaft, the upper surface of the first baffle is connected with one end of the first spring, the other end of the first spring is fixed at the top end in the base, and the lower surface of the first baffle is connected with the clamping bolt; a key switch is fixedly arranged on the side surface far away from the lock pin jack inside the base, one end of the second spring is fixed on the inner side surface of the base close to the key switch, the other end of the second spring is connected with a second baffle, and the second baffle and the lock pin jack are on the same horizontal plane; the base is internally provided with a GPS positioning module, a battery, a voice reminding device and a control system, wherein the control system comprises a central control unit and a wireless communication module.
Furthermore, the battery module is charged through the kinetic energy power generation module and the charging management module.
The system further comprises a fingerprint database, wherein the background management system and the mobile phone terminal are connected with the fingerprint database and used for storing and comparing fingerprints.
Further, the chain is of a length just enough to allow the lock pin to be inserted into the lock pin jack of a succeeding shopping cart in the queue of shopping carts but not into the lock pin jack of the same base as the chain.
Furthermore, a bayonet is arranged on the lock pin, and the end part of the lock pin is a wedge-shaped end part.
Furthermore, the lower end of the clamping bolt is a wedge-shaped end matched with the end part of the lock pin.
Furthermore, the distance from the bayonet of the lock pin to the end part of the lock pin is equal to the distance from the clamping bolt to the key switch.
In order to solve the technical problems, the invention also provides a shopping cart fingerprint unlocking method, which has the innovation points that: the method comprises the following steps:
(1) when a user uses a shopping cart for the first time, personal information is acquired through corresponding software of a mobile phone terminal, the personal information comprises payment information of vehicle fingerprint input and a certain amount deposit, the fingerprint is stored in a fingerprint library, and meanwhile, the personal information is simultaneously stored in a background management system for storage;
(2) when a user starts to use the vehicle, fingerprint information is collected through a fingerprint module on a base, a fingerprint identification module sends the fingerprint condition of the user to a central control unit STM, the central control unit STM compares the fingerprint information with fingerprints in a fingerprint library through a wireless communication module and quickly identifies the user information condition, if user registration information exists, the central control unit STM sends position information acquired from a GPS positioning module to a background management system, an unlocking instruction is sent to the central control unit STM through the wireless communication module after the background management system is successfully identified, the central control unit STM controls a fingerprint unlocking device to realize unlocking, and the user can use the currently opened shopping cart after the unlocking is successfully completed; if the system can not compare the user registration information, the voice reminding module sends out a reminding sound to remind the user of the user registration information;
(3) when the user uses the shopping cart, the shopping cart is pushed into a shopping cart queue in the designated area, the lock pin of the previous shopping cart is locked into the lock pin jack of the current shopping cart, at the moment, the key switch in the fingerprint unlocking device is triggered, a locking success signal is sent to the central control unit STM, and then the central control unit STM informs the background management system of successful locking of the shopping cart through the wireless communication module.
Compared with the prior art, the invention has the following beneficial effects:
the fingerprint unlocking mode of the shopping cart not only enables shopping of a user to be fast and convenient, but also effectively solves the problem of disordered parking of the shopping cart, reduces the management cost of workers, improves the use efficiency, and avoids the phenomenon that the shopping cart is lost due to disordered parking; the installation and use are convenient and fast, the cost is low, the stability is good, the occupied space is small, and the installation and the disassembly are convenient.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic block diagram of a shopping cart fingerprint unlocking system according to the present invention.
FIG. 2 is a front view of a shopping cart fingerprint unlocking device of the present invention.
FIG. 3 is a right side view of a shopping cart fingerprint unlocking device of the present invention.
FIG. 4 is a top view of a shopping cart fingerprint unlocking device of the present invention.
FIG. 5 is a view showing the internal structure of the base of the fingerprint unlocking device for shopping cart according to the present invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description.
The invention provides a shopping cart fingerprint unlocking system, which is structurally shown in figure 1 and comprises a central control unit STM, a GPS positioning module, a wireless communication module, a fingerprint unlocking device, a fingerprint identification module, a voice reminding module, a battery module, a background management system and a mobile phone terminal, wherein the central control unit STM is respectively connected with the GPS positioning module, the wireless communication module, the fingerprint identification module, the voice reminding module, the fingerprint unlocking device and the battery module, the battery module provides power for the whole fingerprint unlocking system, the system also comprises a kinetic energy power generation module and a charging management module, and the battery module is charged through the kinetic energy power generation module and the charging management module. The fingerprint unlocking system is also provided with a fingerprint library, and the background management system and the mobile phone terminal are both connected with the fingerprint library and used for storing and comparing fingerprints.
The invention also provides a shopping cart fingerprint unlocking device, which has a specific structure shown in fig. 2-4 and comprises a base 1, a fingerprint module 2, a lock pin 3, a lock pin jack 4, a shopping cart side lever 5, a side lever connecting seat 6, a shopping cart cross bar 7, a circular metal ring 8 and a chain 9, wherein the shopping cart cross bar 7 is fixedly connected with the shopping cart side lever 5, the side lever connecting seat 6 is sleeved on the periphery of the shopping cart side lever 5, the base 1 is fixedly arranged on the shopping cart cross bar 7, and one side of the base 1 close to the shopping cart side lever 5 is connected with the side lever connecting seat 6; the fingerprint module 2 is arranged on the base 1, the lock pin jack 4 is arranged at the rear side of the base 1, the circular metal ring 8 is fixedly arranged on the upper surface of the base 1, one end of the chain 9 is connected to the circular metal ring 8, and the other end of the chain 9 is connected with the lock pin 3; the length of the chain 9 is just long enough to ensure that the lock pin 3 can be inserted into the lock pin jack 4 of the next shopping cart in the shopping cart queue and can not be inserted into the lock pin jack 4 of the same base as the chain; the lock pin 3 is provided with a bayonet 10.
The structure of the interior of the base of the fingerprint unlocking device is shown in fig. 5, and comprises a motor 11, a transmission shaft 12, a leather rope 13, a first spring 14, a first baffle 15, a clamping bolt 16, a second spring 17, a second baffle 18 and a key switch 19, wherein the motor 11 is arranged above a lock pin jack 4, one side of the motor is fixed on the side wall of the base 1, the other side of the motor is in transmission connection with one end of the transmission shaft 12, the other end of the transmission shaft 12 is connected with one end of the leather rope 13, the other end of the leather rope 13 is fixedly connected to the first baffle 15, the first baffle 15 is arranged below the other end of the transmission shaft 12, the upper surface of the first baffle 15 is connected with one end of the first spring 14, the other end of the first spring 14 is fixed at the top end in the base 1, the lower surface of the first baffle 15 is connected with the clamping bolt 16. A key switch 19 is fixedly installed on the side face, far away from the lock pin jack 4, inside the base 1, one end of a second spring 17 is fixed on the inner side face of the base 1 close to the key switch 19, the other end of the second spring 17 is connected with a second baffle 18, the second baffle 18 and the lock pin jack 4 are in the same horizontal plane, the end part of the lock pin 3 is a wedge-shaped end part, and the distance from the bayonet 10 of the lock pin 3 to the end part of the lock pin 3 is equal to the distance from the clamping bolt 16 to the key switch 19. The base 1 is internally provided with a GPS positioning module 20, a battery 21, a voice reminding device 22 and a control system, wherein the voice reminding device 22 can remind a user of registering personal information firstly when a fingerprint recorded by a fingerprint module is not matched with a fingerprint library, the control system comprises a central control unit STM23 and a wireless communication module 24, the central control unit STM23 is used for controlling the use of the whole fingerprint identification system, and the wireless communication module 24 is mainly used for realizing the communication between the central control unit STM23 and a mobile phone terminal and a background management system, so that the management and comparison of the fingerprint are facilitated.
The application principle of the fingerprint unlocking device is as follows:
during locking, when the lock pin 3 is inserted into the lock pin insertion hole 4, the wedge-shaped head of the lock pin 3 is extruded with the wedge-shaped head of the bolt 16, the bolt 16 moves upwards after being extruded and compresses the first spring 14, the lock pin 3 continues to move forwards until contacting the second baffle 18, the second spring 17 starts to be compressed continuously until the bolt 16 enters the bayonet 10 of the lock pin 3, the first spring 14 returns to a free state, and the distance from the bayonet 10 to the end part of the lock pin 3 is equal to the distance from the bolt 16 to the key switch 19, at this time, the key switch 19 is pushed down by the thrust of the head of the lock pin 3, a high level signal is sent as a locking success signal to be transmitted to the central control unit STM, and at this time, locking is completed;
when the lock is unlocked, the motor 11 starts to work, the motor 11 rotates to drive the transmission shaft 12 to rotate, the leather rope 13 is indirectly wound on the transmission shaft 12 to drive the first baffle 15 and the clamping bolt 16 to move upwards to the bayonet 10 away from the lock pin 3, meanwhile, the clamping bolt 16 compresses the first spring 14, the lock pin 3 is slightly ejected out of the lock pin jack 4 at the moment that the clamping bolt 16 is separated from the bayonet 10 due to the fact that the blocking of the clamping bolt 16 is avoided and the pushing force of the second spring 17 to the end portion of the lock pin is added, the motor 11 stops working, the first spring 14 and the second spring 17 both return to the free state, meanwhile, the key switch 19 is released, the sent low level signal serves as an unlocking success signal and is transmitted to the central control unit STM23, and the.
The invention also provides a shopping cart fingerprint unlocking method, which comprises the following specific steps:
(1) when a user uses a shopping cart for the first time, personal information is collected through corresponding software of a mobile phone terminal, the personal information comprises payment information of vehicle fingerprint input and a certain amount of deposit, the fingerprint is stored in a fingerprint library, and meanwhile, the personal information is stored in a background management system for storage;
(2) when a user starts to use the vehicle, fingerprint information is collected through the fingerprint module 2 on the base 1, and the user information condition is compared and quickly identified with the fingerprints in the fingerprint database through the background management system. If the user registration information exists, the central control unit STM23 sends the position information acquired from the GPS positioning module 20 to the background management system, the background management system sends an unlocking instruction to the central control unit STM23 through the wireless communication module 24 after the background management system is successfully identified, the motor 11 is controlled to start working to realize unlocking, and the user can use the currently opened shopping cart after the unlocking is successful; if the system can not compare the user registration information, the voice reminding device sends out a reminding sound to remind the user of the user registration information.
(3) When the user finishes using the shopping cart, the shopping cart is pushed into the shopping cart queue in the designated area, the lock pin 3 of the previous shopping cart is locked into the lock pin jack 4 of the current shopping cart, at the moment, the key switch 19 in the fingerprint unlocking device is triggered, a locking success signal is sent to the center control unit STM23, and then the center control unit STM23 informs the background management system of successful locking of the shopping cart through the wireless communication module 23.
Because the integrated GPS positioning module is arranged in the base, the position information of the shopping cart can be returned, managers can not only position the shopping cart and find the lost shopping cart, but also judge the passenger flow of each area of the supermarket according to the data information of the positions, and the managers can perform management work according to actual conditions according to different passenger flow. Compared with the traditional mechanical lock, the shopping cart has the advantages that the user obtains good shopping experience, and managers collect data of the user, so that the information management of the shopping cart is realized.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.
Claims (3)
1. A shopping cart fingerprint unlocking system is characterized in that: the system comprises a central control unit STM, a GPS positioning module, a wireless communication module, a fingerprint unlocking device, a fingerprint identification module, a voice reminding module, a battery module, a background management system and a mobile phone terminal, wherein the central control unit STM is respectively connected with the GPS positioning module, the wireless communication module, the fingerprint identification module, the voice reminding module, the fingerprint unlocking device and the battery module;
the background management system and the mobile phone terminal are connected with the fingerprint database and used for storing and comparing fingerprints;
the fingerprint unlocking device comprises a base, a fingerprint module, a lock pin insertion hole, a shopping cart side lever, a side lever connecting seat, a shopping cart cross lever, a circular metal ring and a chain, wherein the shopping cart cross lever is fixedly connected with the shopping cart side lever; the fingerprint module is arranged on the base, the lock pin insertion hole is formed in the rear side of the base, a circular metal ring is fixedly arranged on the upper surface of the base, one end of a chain is connected to the circular metal ring, and the other end of the chain is connected with a lock pin;
the structure inside the base is as follows: the motor is mounted above the lock pin insertion hole, one side of the motor is fixed on the side wall of the base, the other side of the motor is in transmission connection with one end of the transmission shaft, the other end of the transmission shaft is connected with one end of the leather rope, the other end of the leather rope is fixedly connected onto the first baffle, the first baffle is arranged below the other end of the transmission shaft, the upper surface of the first baffle is connected with one end of the first spring, the other end of the first spring is fixed at the top end in the base, and the lower surface of the first baffle is connected with the clamping bolt; a key switch is fixedly arranged on the side surface far away from the lock pin jack inside the base, one end of the second spring is fixed on the inner side surface of the base close to the key switch, the other end of the second spring is connected with a second baffle, and the second baffle and the lock pin jack are on the same horizontal plane; the base is internally provided with a GPS positioning module, a battery, a voice reminding device and a control system, wherein the control system comprises a central control unit and a wireless communication module;
the lock pin is provided with a bayonet, and the end part of the lock pin is a wedge-shaped end part;
the lower end of the clamping bolt is a wedge-shaped end matched with the end part of the lock pin;
the distance from the bayonet of the lock pin to the end part of the lock pin is equal to the distance from the clamping bolt to the key switch;
the shopping cart fingerprint unlocking method comprises the following steps:
(1) when a user uses a shopping cart for the first time, personal information is collected through corresponding software of a mobile phone terminal, the personal information comprises payment information of vehicle fingerprint input and a certain amount of deposit, the fingerprint is stored in a fingerprint library, and meanwhile, the personal information is stored in a background management system for storage;
(2) when a user starts to use the shopping cart, fingerprint information of the user is collected through a fingerprint module on a base, a fingerprint identification module sends the fingerprint condition of the user to a central control unit STM, the central control unit STM compares the fingerprint information with fingerprints in a fingerprint library through a wireless communication module and quickly identifies the user information condition, if user registration information exists, the central control unit STM sends position information acquired from a GPS positioning module to a background management system, an unlocking instruction is sent to the central control unit STM through the wireless communication module after the background management system is successfully identified, the central control unit STM controls a fingerprint unlocking device to realize unlocking, and the shopping cart which is currently opened can be used by the user after the unlocking is successfully carried out; if the system can not compare the user registration information, the voice reminding module sends out a reminding sound to remind the user of the user registration information;
(3) when the user uses the shopping cart, the shopping cart is pushed into a shopping cart queue in the designated area, the lock pin of the previous shopping cart is locked into the lock pin jack of the current shopping cart, at the moment, the key switch in the fingerprint unlocking device is triggered, a locking success signal is sent to the center control unit STM, and then the center control unit STM informs the background management system of successful locking of the shopping cart through the wireless communication module.
2. The shopping cart fingerprint unlocking system of claim 1, wherein: the battery module is charged through the kinetic energy power generation module and the charging management module.
3. The shopping cart fingerprint unlocking system of claim 1, wherein: the chain is just long enough to allow the lock pin to be inserted into the lock pin jack of the next cart in the queue of carts but not into the lock pin jack of the same base as the chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910301838.7A CN110060396B (en) | 2019-04-16 | 2019-04-16 | Shopping cart fingerprint unlocking system and method |
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| CN201910301838.7A CN110060396B (en) | 2019-04-16 | 2019-04-16 | Shopping cart fingerprint unlocking system and method |
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| CN110060396B true CN110060396B (en) | 2021-04-27 |
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| CN111383374A (en) * | 2019-12-06 | 2020-07-07 | 奥维飞越通信有限公司 | Intelligent management system and method for trolley |
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| CN206623851U (en) * | 2017-02-23 | 2017-11-10 | 温州大学 | Internet of things type multi-functional navigation stroller in real time |
| KR20180134242A (en) * | 2017-06-08 | 2018-12-18 | 김재인 | Utility Baby Carrirer Using IoT |
| CN206968733U (en) * | 2017-07-19 | 2018-02-06 | 王钦兵 | A kind of stroller storage lock that can be automatically controlled takes device and stroller shared system |
| CN108364408A (en) * | 2018-04-25 | 2018-08-03 | 青岛大学 | A kind of smart supermarket shopping lock and its control system |
| CN208061294U (en) * | 2018-04-27 | 2018-11-06 | 南京信息工程大学 | A kind of shared bicycle unlocked by fingerprint system |
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| CN110060396A (en) | 2019-07-26 |
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