CN111740763A - Sales counter, sales counter control method, and storage medium - Google Patents
Sales counter, sales counter control method, and storage medium Download PDFInfo
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- CN111740763A CN111740763A CN202010197101.8A CN202010197101A CN111740763A CN 111740763 A CN111740763 A CN 111740763A CN 202010197101 A CN202010197101 A CN 202010197101A CN 111740763 A CN111740763 A CN 111740763A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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Abstract
The embodiment of the invention discloses a sales counter, a sales counter control method and a storage medium, wherein the sales counter comprises: the refrigerator comprises a cabinet body, wherein a cabinet door is arranged on one side of the cabinet body, and at least one tray for bearing articles is arranged in the cabinet body; the trigger device is used for generating a trigger signal when detecting that the state of the cabinet door is changed from opening to closing; the radio frequency identification device comprises a reader-writer and a phased array antenna which is arranged on the tray and connected with the reader-writer, and the reader-writer is used for scanning the electronic tags of the articles on the current tray through the phased array antenna according to the trigger signal; and the processor is used for determining the article to be checked out according to the current electronic tag scanning result and the previous electronic tag scanning result. The problem of article miss-reading exists in current sales counter based on RFID technique is solved.
Description
Technical Field
The embodiment of the invention relates to the field of computer software, in particular to a sales counter, a sales counter control method and a storage medium.
Background
At present, unmanned sales counter is already arranged at the door of many communities, and the used identification technology mainly comprises RFID technology identification, gravity induction identification, image identification and the like. Most vending cabinets based on the RFID technology adopt a single antenna for label scanning or a mode of polling and scanning labels by a plurality of antennas.
When a single antenna is adopted, due to the fact that radio frequency identification power is low or output wave beams are in a static wave shape, objects at the bottom of the wave are easy to miss reading; the polling and checking of a plurality of antennas has the problems of long single scanning time, high energy consumption, missing reading of articles due to channel errors and the like.
In summary, in the process of implementing the present invention, the inventors found the following technical problems in the prior art: at present, the problem of article missing reading exists in the sales counter based on the RFID technology.
Disclosure of Invention
The embodiment of the invention provides a sales counter, a sales counter control method and a storage medium, which are used for solving the problem that articles are missed to be read in the sales counter based on the RFID technology at present.
In a first aspect, an embodiment of the present invention provides a sales counter, including:
the refrigerator comprises a cabinet body, wherein a cabinet door is arranged on one side of the cabinet body, and at least one tray for bearing articles is arranged in the cabinet body;
the trigger device is used for generating a trigger signal when detecting that the state of the cabinet door is changed from opening to closing;
the radio frequency identification device comprises a reader-writer and a phased array antenna which is arranged on the tray and connected with the reader-writer, and the reader-writer is used for scanning the electronic tags of the articles on the current tray through the phased array antenna according to the trigger signal;
and the processor is used for determining the article to be checked out according to the current electronic tag scanning result and the previous electronic tag scanning result.
In a second aspect, an embodiment of the present invention further provides a method for controlling a sales counter, which is applied to the sales counter according to any embodiment, and includes:
detecting the state of the cabinet door through a trigger device, and generating a trigger signal when detecting that the state of the cabinet door is changed from open to closed;
controlling the phased array antenna to scan the electronic tag of the article on the current tray by a reader-writer of the radio frequency identification device according to the trigger signal;
and determining the article to be checked out according to the comparison result of the current electronic tag scanning result and the previous electronic tag scanning result.
In a third aspect, the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are used to perform the sales counter control method according to the embodiments.
The technical scheme of the sales counter provided by the embodiment of the invention comprises a counter body, a triggering device, a radio frequency identification device and a processor, wherein one side of the counter body is provided with a counter door, and at least one tray for bearing articles is arranged in the counter body; the trigger device is used for generating a trigger signal when detecting that the state of the cabinet door is changed from opening to closing; the radio frequency identification device comprises a reader-writer and a phased array antenna which is arranged on the tray and connected with the reader-writer, and the reader-writer is used for scanning the electronic tags of the articles on the current tray through the phased array antenna according to the trigger signal; the processor is used for determining the article to be checked out according to the current electronic tag scanning result and the previous electronic tag scanning result. The use of phased array antenna can strengthen the intensity of the radio frequency signal of each position in the cabinet body, avoids the internal label discernment blind area or blind spot of appearing of cabinet to and because the internal label discernment blind area or the blind spot of existence of cabinet appear the emergence of article condition of missing reading.
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 description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a block diagram of a sales counter according to an embodiment of the present invention;
FIG. 2A is a schematic structural diagram of a sales counter according to an embodiment of the present invention;
FIG. 2B is a schematic diagram of an internal structure of a sales counter according to an embodiment of the present invention;
FIG. 3 is a block diagram of another sales container according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a radiation surface of a single circularly polarized antenna according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a feeding surface of a single circular polarization antenna according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a single circular polarization antenna according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a surface current of a single circularly polarized antenna according to an embodiment of the present invention;
FIG. 8 is a radiation diagram of a right-hand circularly polarized antenna according to an embodiment of the present invention;
fig. 9 is a radiation diagram of a left-hand circularly polarized antenna according to an embodiment of the present invention;
FIG. 10 is a radiation composite diagram of a right-hand circularly polarized antenna and a right-hand circularly polarized antenna according to an embodiment of the present invention;
fig. 11 is a beam pattern scanned-45 ° to 45 ° by the phased array antenna according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a communication manner of the reader/writer according to an embodiment of the present invention;
FIG. 13 is a flowchart of a method for controlling a sales counter according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
Example one
The embodiment of the invention provides a schematic diagram of a sales counter. As shown in fig. 1, fig. 2A, fig. 2B and fig. 3, the sales counter comprises a cabinet 11, a triggering device 12, a radio frequency identification device 13 and a processor 14. A cabinet door 111 is arranged on one side of the cabinet body 11, and at least one tray 112 for bearing articles is arranged inside the cabinet body 11; the trigger device 12 is used for generating a trigger signal when detecting that the state of the cabinet door is changed from open to closed; the rfid device 13 includes a reader/writer and a phased array antenna 131 disposed on the tray 112 and connected to the reader/writer, and the reader/writer is configured to scan an electronic tag of an article on the current tray 112 through the phased array antenna 131 according to a trigger signal; the processor 14 is configured to determine an item to be checked out according to the current electronic tag scanning result and the previous electronic tag scanning result.
Each article placed on the tray is provided with a unique electronic tag, and each phased array antenna only scans the electronic tags of the articles borne by the tray.
When the cabinet door is changed from the open state to the closed state, indicating that the user is changed from the item taking stage to the checkout stage, a trigger signal for triggering the tag identification is generated by the trigger device 12 to initiate the tag scanning.
When determining the current object to be settled, the processor determines difference information between the previous electronic tag scanning result and the current electronic tag scanning result, then determines the object taken out by the user according to the difference information, takes the object as the current object to be settled, and generates a payment bill of the current object to be settled.
Preferably, the sales counter further comprises a scanning camera 15 arranged at the top of the cabinet body on one side of the cabinet door, and the scanning camera is controlled by the processor to shoot a goods taking image of goods taken by a user; the processor 14 obtains the pickup image, determines a tray identifier corresponding to the article to be checked out according to the pickup image, and then controls the reader-writer to control the phased array antenna corresponding to the tray identifier to perform label scanning according to the trigger signal. Compared with the method of controlling all the antennas to scan the tags on all the trays, the method can reduce the number of the antennas participating in tag scanning, thereby reducing the tag scanning range and improving the determining speed of the articles to be checked out.
Preferably, the sales counter further comprises a face recognition module 16 arranged at the top of the counter body on one side of the counter door, and configured to perform face recognition on a user and open the counter door 111 when the face recognition is passed. The technical effect that the goods can be taken by opening the door without the control of a mobile phone is achieved.
Referring to fig. 2A and 2B, the scanning cameras 15 are disposed at two ends of the top of the cabinet body on one side of the cabinet door, and the camera of the face recognition module 16 is disposed in the middle of the top of the cabinet body on one side of the door.
In some embodiments, if the face recognition fails, the mode is actively or passively switched to other door opening modes, such as account login door opening or code scanning door opening through the touch screen 17 on the cabinet door.
Preferably, the sales counter further comprises a transaction module 18, and the transaction module is used for completing deduction of a payment bill corresponding to the object to be settled from a payment path corresponding to the current account number. The payment path can be an authorization path such as a payment treasure, a WeChat, a bank account and the like, and the deduction mode can be password-free automatic deduction, face-brushing payment, transaction password payment or code-scanning payment and the like. If the password payment is carried out, a payment password needs to be input on a touch screen of the cabinet door.
Wherein, the rfid device 13 is preferably disposed at the bottom of the cabinet 11, see fig. 2A. The video identification module further comprises a phase shifter arranged at the bottom of the cabinet body and connected with the reader-writer, and a power divider connected with the phase shifter.
In order to improve the homogeneity of the electromagnetic field intensity in the cabinet body, the phased array antenna is controlled by the reader-writer to output dynamic beams, so that the electronic tags of all articles are all at the same electromagnetic field intensity, and are similar to each other in the error allowable range, thereby preventing scanning blind spots from occurring in the cabinet body and achieving the technical effect of preventing the articles from being missed to read.
The phased array antenna comprises at least two antennas, each antenna comprises a left circularly polarized antenna and a right circularly polarized antenna, and the same antenna can form two circularly polarized waves with opposite rotation directions in two different directions. The size of the circularly polarized antenna is preferably determined according to the internal size of the sales counter, so that the electromagnetic field strength of the electronic tags of all the articles in the antenna is the same within the error tolerance range.
In one embodiment, the individual antenna dimensions are 75 × 75 × 1.5mm, the antenna substrate is FR4, and the thickness is 1.5 mm. One surface of the substrate is a radiation surface 21 (see fig. 4) for forming a circularly polarized wave, and the other surface is a feed surface 22 (see fig. 5). As shown in fig. 6, the radiating plane 21 is connected to the feeding plane 22 through a conductive via 23. The radiating plane 21 comprises a 90 ° phase transition plane 211, the 90 ° phase transition plane 211 being connected at one end to a horizontal bend plane 213 via a horizontal electric field plane 212 and at the other end to a vertical bend plane 215 via a vertical electric field plane 214. The feeding plane 22 includes a feeding ground plane 221 and a feeding coupling plane 222 (see fig. 5) connecting the feeding ground plane 221.
The principle of forming circularly polarized waves according to the electromagnetic field theory: if the amplitude of the x-component and the y-component of the electric field are equal and the phase difference is pi/2, the resultant wave is a circularly polarized wave. If the left thumb faces to the propagation direction of the electromagnetic wave, the other four fingers point to the endpoint movement direction of the electric field E, and the circularly polarized wave is a left-handed circularly polarized wave; if the thumb of the right hand is oriented in the wave propagation direction, the remaining four fingers point in the end point movement direction of the electric field E, and such a circularly polarized wave is a right-hand circularly polarized wave. With reference to the diagonal 1 shown in fig. 4, the current vector is symmetrical about the diagonal 2. According to the maxwell equation set principle, the current vector can represent the magnitude and direction of the electric field vector, the electric field directions of every two symmetrical points are perpendicular to each other and have the same magnitude, and see fig. 7. From the feed point, two current paths flow out in opposite directions, so that two electric fields with opposite directions exist, and the electric field in the-z direction is assumed to be E10The electric field in the (vertical) and + z directions is E01(horizontal), symmetrical about the diagonal 2, the total radiation field is divided into + z and-z directions, the radiation field in + z direction is right-hand circular polarized wave, as follows:
-the radiation field in the z-direction is left-handed circularly polarized:
wherein the content of the first and second substances,
is the + z direction total electric field vector;
is the + z direction total magnetic field vector;
is the-z direction total electric field vector;
the-z direction total magnetic field vector, x, y vector directions, and η wave impedance, which represents the ratio of the electric field strength to the magnetic field strength.
The right-hand circular polarized wave is shown in fig. 8, the left-hand circular polarized wave is shown in fig. 9, and the synthesized radiation wave is shown in fig. 10.
Illustratively, for a sales counter with a rectangular tray having a length of 110cm and a width of 40cm, the antennas of the array antenna are arranged on the center line of the short side of the tray, and each antenna has a size of 75 × 75mm, and the scanning angle of the scanned edge is preferably 45 °, referring to the simulation result of fig. 11, it can be seen that the side lobe is higher, which is-13 dB, and the side lobe causes the confusion of the received information during scanning. In order to reduce the side lobes, the side lobes are pressed by using a Taylor array synthesis algorithm; however, the Taylor array synthesis algorithm is used for pressing the side lobes, too large array spacing may occur, and the too large array spacing may cause grating lobes; grating lobes also clutter the received information and, in addition, the scan angle also affects the grating lobes. The maximum array pitch formula of the Taylor array without grating lobes is as follows:
wherein d ismaxIs the maximum spacing between antennas, σ is the lobe broadening factor, N is the number of elements, R0Is Taylor array synthetic side lobe level, and lambda is resonance wavelength. When R0 is 30dB and the number of antennas is 6, d is obtainedmax＝118mm。
For this reason, 6 antennas are placed on each tray, and when the interval between adjacent antennas is 118mm, the electronic tags of the articles on the trays can be exposed to the electromagnetic field with the same intensity.
The current distribution of each cell after 30dB taylor integration and the phase shift of 45 ° scan by C + + programming calculation are shown in the table below, and the scan directions obtained by ± 45 ° scan are shown in fig. 11.
| Antenna numbering | #1 | #2 | #3 | #4 | #5 | #6 |
| Input current | 0.323241 | 0.694336 | 1 | 1 | 0.694336 | 0.323241 |
| |
0° | -89° | -178° | -267° | -356° | -85° |
The reader-writer adopts half-duplex communication, and waveforms of a transmitting end and a receiving end of the reader-writer are shown in fig. 12.
And setting the single identification time T as the time required by the reader-writer to transmit and receive information once, wherein the time for the beam to move once is integral multiple of T when the phased array is scanned, otherwise, the instruction for transmitting and receiving information cannot be completed. Setting the label scanning time of each time when the user purchases to be the allowable identification time T', wherein the reader-writer can perform the operation in the time T
And (5) secondary identification.
Illustratively, if the allowed recognition time T 'is set to 3 seconds and the single recognition time is 30 milliseconds, the beam is scanned 100 times at most within the allowed recognition time T', i.e., 100 recognition operations can be performed.
As a preferred embodiment, the phase shifter is selected to be 4 bits, then the phase of the minimum shift of the phase shifter is 22.5 °, the beam scan angle can be 45 °, the beam jump is 12.5 °, i.e. scan 37.5 °, and the beam jump 3 times, the beam jump 6 times to cover all the items in the vending unmanned cabinet, the time required is 6 × T, and the maximum number of identifications within the allowed identification time is
Wherein, the wave beam jump is phased array scanning, can make every position of selling the cabinet all receive the biggest signal of read write line to avoid the thing effectivelyThe product is missed to be read.
The technical scheme of the sales counter provided by the embodiment of the invention comprises a counter body, a triggering device, a radio frequency identification device and a processor, wherein one side of the counter body is provided with a counter door, and at least one tray for bearing articles is arranged in the counter body; the trigger device is used for generating a trigger signal when detecting that the state of the cabinet door is changed from opening to closing; the radio frequency identification device comprises a reader-writer and a phased array antenna which is arranged on the tray and connected with the reader-writer, and the reader-writer is used for scanning the electronic tags of the articles on the current tray through the phased array antenna according to the trigger signal; the processor is used for determining the information of the article to be checked out according to the current electronic tag scanning result and the previous electronic tag scanning result. The use of phased array antenna can strengthen the intensity of the radio frequency signal of each position in the cabinet body, avoids the appearance of label discernment blind area or blind spot in the cabinet body to and because of there is the emergence of article condition of reading that leaks in label discernment blind area or blind spot in the cabinet body.
Example two
FIG. 13 is a flowchart of a sales counter control method according to a second embodiment of the present invention. The technical scheme of the embodiment is suitable for controlling the shopping cabinet in the embodiment to respond to the shopping operation of the user. The method can be executed by a processor of a sales counter provided by an embodiment of the invention. With reference to fig. 1, fig. 2A, fig. 2B and fig. 3, the method specifically includes the following steps:
s101, detecting the state of a cabinet door through a trigger device, and generating a trigger signal when detecting that the state of the cabinet door is changed from open to closed.
When the cabinet door is changed from the open state to the closed state, indicating that the user is changed from the item taking stage to the checkout stage, a trigger signal for triggering the tag identification is generated by the trigger device 12 to initiate the tag scanning.
And S102, controlling the phased array antenna to scan the electronic tag of the article on the current tray by a reader-writer of the radio frequency identification device according to the trigger signal.
When the reader of the rfid device 13 detects the trigger signal, the phased array antenna connected to the reader is controlled to scan the electronic tag corresponding to the article on the tray, so as to obtain the current electronic tag scanning result.
The structure and performance parameters of the phased array antenna are described in detail in the foregoing embodiments, and the description of the present embodiment is omitted here.
In order to improve the speed of determining the articles to be settled, the sales counter further comprises a scanning camera 15 which is controlled by the processor to shoot a pickup image of the articles taken by the user; the processor 14 obtains the pickup image, determines a tray identifier corresponding to the article to be checked out according to the pickup image, and then controls the reader-writer to control the phased array antenna corresponding to the tray identifier to perform label scanning according to the trigger signal. Compared with the method for controlling all antennas to carry out label scanning on all articles, the method can reduce the number of antennas participating in label scanning, thereby reducing the label scanning range and improving the determining speed of the articles to be checked out.
S103, determining the article to be checked out according to the comparison result of the current electronic tag scanning result and the previous electronic tag scanning result.
The processor calls the previous electronic tag scanning result after obtaining the current electronic tag scanning result, then determines the difference information between the previous electronic tag scanning result and the current electronic tag scanning result, determines the article taken out by the user according to the difference information, takes the article as the current article to be settled, and determines the payment bill corresponding to the current article to be settled.
And after the payment bill corresponding to the current object to be settled is determined, the processor controls the transaction module to complete deduction of the payment bill from the payment path corresponding to the current account number. The payment path can be an authorization path such as a payment treasure, a WeChat, a bank account and the like, and the deduction mode can be password-free automatic deduction, face-brushing payment, transaction password payment or code-scanning payment and the like. If the password payment is carried out, a payment password needs to be input on a touch screen of the cabinet door.
In order to improve the convenience of use of the sales counter, the sales counter is also provided with a face recognition module 16. The user comes before the cabinet door when shopping, gets into the scanning range of face identification module's camera, and this camera senses the people and then starts the function of taking a picture and face identification function, and the treater opens cabinet door 111 after face identification passes through to supply the user to take article from the tray. The technical effect that the goods can be taken by opening the door without the control of a mobile phone is achieved.
In some embodiments, if the face recognition fails, the mode is actively or passively switched to other door opening modes, such as account login door opening or code scanning door opening through the touch screen 17 on the cabinet door.
The technical scheme of the sales counter control method provided by the embodiment of the invention comprises the steps of detecting the state of a cabinet door through a trigger device, and generating a trigger signal when the state of the cabinet door is detected to be changed from open to closed; controlling a phased array antenna to scan the electronic tag of the article on the current tray by a reader-writer of the radio frequency identification device according to the trigger signal; and determining the current item to be checked out according to the comparison result of the current electronic tag scanning result and the previous electronic tag scanning result. The use of phased array antenna can strengthen the intensity of the radio frequency signal of each position in the cabinet body, avoids the appearance of label discernment blind area or blind spot in the cabinet body to and because of there is the emergence of article condition of reading that leaks in label discernment blind area or blind spot in the cabinet body.
EXAMPLE III
A third embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a sales counter control method, the method including:
detecting the state of the cabinet door through a trigger device, and generating a trigger signal when detecting that the state of the cabinet door is changed from open to closed;
controlling the phased array antenna to scan the electronic tag of the article on the current tray by a reader-writer of the radio frequency identification device according to the trigger signal;
and determining the article to be checked out according to the comparison result of the current electronic tag scanning result and the previous electronic tag scanning result.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the sales counter control method provided by any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute the sales container control method according to the embodiments of the present invention.
It should be noted that, in the above embodiment of the sales counter, the included units and modules are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (11)
1. A sales counter, comprising:
the refrigerator comprises a cabinet body, wherein a cabinet door is arranged on one side of the cabinet body, and at least one tray for bearing articles is arranged in the cabinet body;
the trigger device is used for generating a trigger signal when detecting that the state of the cabinet door is changed from opening to closing;
the radio frequency identification device comprises a reader-writer and a phased array antenna which is arranged on the tray and connected with the reader-writer, and the reader-writer is used for scanning the electronic tags of the articles on the current tray through the phased array antenna according to the trigger signal;
and the processor is used for determining the article to be checked out according to the current electronic tag scanning result and the previous electronic tag scanning result.
2. A sales counter according to claim 1, further comprising:
the scanning camera is arranged at the top of the cabinet body and used for shooting a goods taking image of a user taking goods;
and the processor is also used for determining a tray identifier corresponding to the object to be checked out according to the goods picking image and controlling the reader-writer to control the phased array antenna corresponding to the tray identifier to carry out label scanning according to the trigger signal.
3. The sales cabinet of claim 1, wherein the processor is specifically configured to:
and determining the article taken out by the user currently according to the difference information between the previous electronic tag scanning result and the current electronic tag scanning result, and taking the article as the article to be settled currently.
4. A sales counter according to claim 1, further comprising:
the face recognition module is arranged at the top of the cabinet body and used for carrying out face recognition on a user and opening the cabinet door when the face recognition is passed through.
5. A sales counter according to claim 1, further comprising:
and the transaction module is used for completing deduction of a payment bill corresponding to the object to be settled from a payment path corresponding to the current account under the control of the processor.
6. The sales cabinet of claim 1, wherein the phased array antenna comprises at least two antennas, and the reader controls the at least two antennas to output a dynamic beam that causes the electronic tags of all items to be at the same electromagnetic field strength.
7. A sales counter according to claim 6, wherein the antennas comprise a left and a right circularly polarized antenna for forming two circularly polarized waves of opposite handedness in two different directions from one and the same antenna.
8. The sales counter of claim 7, wherein, during scanning of the phased array antenna, the beam scanning angle is 45 degrees, the phase shifter selects 4 bits, the minimum moving phase is 22.5 degrees, the beam jump is 12.5 degrees, and the time of each tag scanning of the phased array antenna is 6 beam jump times, so that each position in the counter can receive the maximum signal sent by the reader-writer through the phased array antenna.
9. A sales counter control method applied to the sales counter according to any one of claims 1 to 8, comprising:
detecting the state of the cabinet door through a trigger device, and generating a trigger signal when detecting that the state of the cabinet door is changed from open to closed;
controlling the phased array antenna to scan the electronic tag of the article on the current tray by a reader-writer of the radio frequency identification device according to the trigger signal;
and determining the article to be checked out according to the comparison result of the current electronic tag scanning result and the previous electronic tag scanning result.
10. The method of claim 9, further comprising:
shooting a goods taking image of an article taken by a user through a scanning camera;
determining a tray identification corresponding to the goods to be settled according to the goods taking image;
correspondingly, the step of controlling the phased array antenna to scan the electronic tag of the article on the current tray by the reader-writer of the radio frequency identification device according to the trigger signal comprises the following steps:
and controlling a reader-writer to control the phased array antenna corresponding to the tray identification to scan the label according to the trigger signal.
11. A storage medium containing computer executable instructions, which when executed by a computer processor, is for performing the sales counter control method according to claim 9 or 10.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114445935A (en) * | 2022-01-17 | 2022-05-06 | 深圳诺博医疗科技有限公司 | Medical cabinet and article management method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205080592U (en) * | 2015-10-30 | 2016-03-09 | 万马科技股份有限公司 | Data computer lab resource management system |
| KR101746705B1 (en) * | 2016-06-29 | 2017-06-13 | 박효미 | Smart rental system for auxiliary battery |
| CN206639308U (en) * | 2017-06-15 | 2017-11-14 | 深圳市道中创新科技有限公司 | A kind of intelligence sells cabinet |
| CN108734904A (en) * | 2018-05-25 | 2018-11-02 | 杭州纳戒科技有限公司 | Self-service supermarket's vending system and automatic selling system |
| CN109360331A (en) * | 2017-12-29 | 2019-02-19 | 广州Tcl智能家居科技有限公司 | A kind of automatic vending method and automatic vending machine based on article identification |
| CN109584443A (en) * | 2018-11-23 | 2019-04-05 | 北京易植科技有限公司 | Fresh flower vending machine and its control method based on RFID static state Stocktaking mode |
| CN110012230A (en) * | 2019-04-13 | 2019-07-12 | 广州小球科技有限公司 | Automatically vending system and method |
-
2020
- 2020-03-19 CN CN202010197101.8A patent/CN111740763B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205080592U (en) * | 2015-10-30 | 2016-03-09 | 万马科技股份有限公司 | Data computer lab resource management system |
| KR101746705B1 (en) * | 2016-06-29 | 2017-06-13 | 박효미 | Smart rental system for auxiliary battery |
| CN206639308U (en) * | 2017-06-15 | 2017-11-14 | 深圳市道中创新科技有限公司 | A kind of intelligence sells cabinet |
| CN109360331A (en) * | 2017-12-29 | 2019-02-19 | 广州Tcl智能家居科技有限公司 | A kind of automatic vending method and automatic vending machine based on article identification |
| CN108734904A (en) * | 2018-05-25 | 2018-11-02 | 杭州纳戒科技有限公司 | Self-service supermarket's vending system and automatic selling system |
| CN109584443A (en) * | 2018-11-23 | 2019-04-05 | 北京易植科技有限公司 | Fresh flower vending machine and its control method based on RFID static state Stocktaking mode |
| CN110012230A (en) * | 2019-04-13 | 2019-07-12 | 广州小球科技有限公司 | Automatically vending system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114445935A (en) * | 2022-01-17 | 2022-05-06 | 深圳诺博医疗科技有限公司 | Medical cabinet and article management method |
| CN114445935B (en) * | 2022-01-17 | 2023-06-09 | 深圳诺博医疗科技有限公司 | Medical cabinet and article management method |
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|---|---|
| CN111740763B (en) | 2021-11-12 |
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