CN210721484U

CN210721484U - Be applied to anti-interference RFID read write line of wisdom food and beverage

Info

Publication number: CN210721484U
Application number: CN201922409362.7U
Authority: CN
Inventors: 袁婷婷; 王寿超
Original assignee: Synthesis Electronic Technology Co Ltd
Current assignee: Synthesis Electronic Technology Co Ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-06-09
Anticipated expiration: 2029-12-28

Abstract

The utility model discloses an anti-interference RFID readwrite device for wisdom food and beverage, including the dining table, characterized by: the dining table is got through fixed column one fixed connection at the upside both ends of getting the dining table, get the upside both ends of dining table and pass through two fixed connection lighting lamp covers of fixed column, the upper portion one side of dining table is provided with a set of draw-in groove of evenly arranging, every respectively fixed connection RFID read write line in the draw-in groove. The utility model relates to an anti-interference RFID read write line equipment field specifically says, relates to an anti-interference RFID read write device who is applied to wisdom food and beverage. The shell formed by the shell and the upper shell of the device can shield external electromagnetic interference, provide a relatively stable working environment for the RFID read-write circuit and ensure the stability of reading and writing.

Description

Be applied to anti-interference RFID read write line of wisdom food and beverage

Technical Field

The utility model relates to an anti-interference RFID read write line equipment field specifically says, relates to an anti-interference RFID read write device who is applied to wisdom food and beverage.

Background

With the development of the technology, science and technology gradually deepens into the aspects of people's life, and it is a reflection to apply RFID read-write device, RFID label to the food and beverage trade, uses RFID read-write device and the tableware that contains the RFID label to provide a lot of convenience for getting meal, settling accounts, tracing back, statistics etc.. However, in actual use, the environment of the dining table, the structure and the material of the dining table and the like can cause interference to the RFID read-write circuit arranged on the dining table, so that errors occur in reading and writing of the label in the tableware, the use reliability is reduced, and dining of a user is influenced. Therefore, it is important to improve the anti-interference performance and stability of the reader/writer.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an anti-interference RFID read write device who is applied to wisdom food and beverage, the convenient reading and writing to the tableware inner label.

The utility model adopts the following technical scheme to realize the purpose of the invention:

the utility model provides an anti-interference RFID read write device for wisdom food and beverage, is including making the dining table, characterized by: the dining table is got through fixed column one fixed connection at the upside both ends of getting the dining table, get the upside both ends of dining table and pass through two fixed connection lighting lamp covers of fixed column, the upper portion one side of dining table is provided with a set of draw-in groove of evenly arranging, every respectively fixed connection RFID read write line in the draw-in groove.

As a further limitation of the technical solution, each of the RFID readers includes an RFID reader circuit, an upper shell and a shell, the upper side of the upper shell is flush with the table top of the dining table, the top of the shell is open, the upper side of the shell is fixedly connected to the upper shell, the RFID reader circuit is disposed in a shell formed by the shell and the upper shell, and the shell is internally and fixedly connected to symmetrical support pillars.

As a further limitation of the technical solution, the RFID read-write circuit includes an antenna board and a control board, the antenna board is electrically connected to the control board, the control board is fixedly mounted at the bottom end inside the housing, the antenna board is fixed at the upper end of the symmetrical support columns, the symmetrical support columns penetrate through the symmetrical circular holes formed in the control board, and the antenna board is close to the upper housing.

As a further limitation of the present technical solution, the housing is a metal housing.

As a further limitation of the technical solution, the control board includes a main MCU and a radio frequency chip U1, the main MCU is electrically connected to the radio frequency chip U1, the main MCU is electrically connected to the buzzer B1, the main MCU is electrically connected to the indicator light, and the radio frequency chip U1 is electrically connected to the antenna board.

As a further limitation of the present technical solution, the pin 17 of the main MCU is electrically connected to the pin 30 of the rf chip U1, the pin 16 of the main MCU is electrically connected to the pin 29 of the rf chip U1, and the pin 15 of the main MCU is electrically connected to the pin 31 of the rf chip U1; the pin 14 of the main MCU is electrically connected with the pin 32 of the radio frequency chip U1; the pin 19 of the main MCU is electrically connected with the pin 27 of the radio frequency chip U1, the pin 39 of the main MCU is electrically connected with a buzzer B1 through a control circuit consisting of a resistor R36, a triode Q1 and a diode D8, the pin 45 of the main MCU is electrically connected with a plurality of groups of indicator lamps through a control circuit consisting of a resistor R23, a resistor R24, a triode Q3, a resistor R25 and a MOS tube Q5, the pin 10 of the radio frequency chip U1 is electrically connected with the antenna board through an impedance matching circuit, and the pin 22 of the radio frequency chip U1 is electrically connected with the antenna board through capacitors C62 and C63.

Compared with the prior art, the utility model discloses an advantage is with positive effect: the device not only improves the stability and anti-interference performance of the read-write circuit, but also can modularize the read-write circuit, thereby facilitating the production and installation;

the shell formed by the shell and the upper shell can shield external electromagnetic interference, provide a relatively stable working environment for the RFID read-write circuit and ensure the stability of reading and writing.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the present invention.

Fig. 2 is a schematic perspective view of the RFID reader of the present invention.

Fig. 3 is a schematic view of the three-dimensional structure of the RFID reader of the present invention.

Fig. 4 is a schematic view of a local three-dimensional structure of the RFID reader of the present invention.

Fig. 5 is a schematic circuit diagram of the present invention.

Fig. 6 is a schematic diagram of the main MCU of the present invention.

Fig. 7 is a schematic diagram of the rf chip of the present invention.

In the figure: 1. the lighting lamp shade 2, the second fixing columns 3, the dining table 4, the first fixing columns 5, the dining table 6, the clamping groove 7, the RFID reader-writer 9, the upper shell 10, the shell 11, the antenna plate 12, the supporting columns 13, the round holes 14 and the control panel.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

As shown in fig. 1-7, the utility model discloses a dining table 5, dining table 3 is got through a fixed column 4 fixed connection at the upside both ends of dining table 5, the upside both ends of getting dining table 3 are through two 2 fixed connection lighting lamp covers 1 of fixed column (lighting lamp covers 1 interior light electric connection power, this is prior art, no longer gives details), upper portion one side of dining table 5 is provided with a set of draw-in groove 6 of evenly arranging, every fixed connection RFID read write line 7 respectively in the draw-in groove 6.

Each RFID reader-writer 7 respectively comprises an RFID reading-writing circuit, an upper shell 9 and a shell 10, the upper side of the upper shell 9 is flush with the table top of the dining table 5, the top of the shell 10 is open, the upper side of the shell 10 is fixedly connected with the upper shell 9, the RFID reading-writing circuit is arranged in a shell formed by the shell 10 and the upper shell 9, and symmetrical support columns 12 are fixedly connected inside the shell 10.

The RFID read-write circuit comprises an antenna plate 11 and a control plate 14, wherein the antenna plate 11 is electrically connected with the control plate 14, the control plate 14 is fixedly installed at the bottom end inside the shell 10, the antenna plate 11 is fixed at the upper end of the supporting column 12 in symmetry, the supporting column 12 in symmetry penetrates through a symmetrical round hole 13 formed in the control plate 14, and the antenna plate 11 is close to the upper shell 9.

The housing 10 is a metal housing.

The control panel 14 includes main MCU and radio frequency chip U1, main MCU electric connection the radio frequency chip U1, main MCU electric connection bee calling organ B1, main MCU electric connection pilot lamp, radio frequency chip U1 electric connection the antenna panel 11.

A pin 17 of the main MCU is electrically connected with a pin 30 of the radio frequency chip U1, a pin 16 of the main MCU is electrically connected with a pin 29 of the radio frequency chip U1, and a pin 15 of the main MCU is electrically connected with a pin 31 of the radio frequency chip U1; the pin 14 of the main MCU is electrically connected with the pin 32 of the radio frequency chip U1; the pin 19 of the main MCU is electrically connected with the pin 27 of the radio frequency chip U1, the pin 39 of the main MCU is electrically connected with a buzzer B1 through a control circuit consisting of a resistor R36, a triode Q1 and a diode D8, the pin 45 of the main MCU is electrically connected with a plurality of groups of indicator lamps through a control circuit consisting of a resistor R23, a resistor R24, a triode Q3, a resistor R25 and a MOS tube Q5, the pin 10 of the radio frequency chip U1 is electrically connected with the antenna board 11 through an impedance matching circuit, and the pin 22 of the radio frequency chip U1 is electrically connected with the antenna board 11 through capacitors C62 and C63.

The first control circuit, the second control circuit and the impedance matching circuit are all conventional circuits, which are the prior art and are not described in detail.

The radio frequency chip U1 and the antenna board 11 adopt ISO15693 protocol to communicate with the label built in the tableware, the effective distance of reading the card is 0-2cm, and misoperation to the tableware is prevented.

The RFID reader-writer 7 adopts a serial port RS-485 mode to communicate with the outside.

And the main MCU reads and writes the tableware with the built-in label according to the state of the RFID reader-writer 7, and controls corresponding state indication through IO.

The radio frequency chip U1 communicates with the main MCU in an SPI mode, and provides an interrupt signal for the main MCU through an IO port.

The RFID reader-writer 7 is electrically connected with the controller.

The model of the main MCU is stm32f 103.

The model number of the radio frequency chip U1 is st25r 3911.

The utility model discloses a work flow does: after the device is started, the controller controls the RFID reader-writer 7 to work, the RFID reader-writer 7 continuously sends a label searching instruction after entering a working state, the instruction is sent to the radio frequency chip U1 by the main MCU on the control panel 14, when tableware with a built-in label is placed on the RFID reader-writer 7, the radio frequency chip U1 reads label information, the shell 10 can shield external electromagnetic interference, the label information read by the radio frequency chip U1 is more accurate, the radio frequency chip U1 sends a signal to the antenna panel 11, similarly, the information returned by the label also reaches the radio frequency chip U1 through the antenna panel 11, the radio frequency chip U1 sends the information returned by the label to the main MCU of the control panel 14, and the main MCU carries out next-step processing on the label according to information such as meal ordering.

The above disclosure is only one specific embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. The utility model provides an anti-interference RFID read write device for wisdom food and beverage, is including making dining table (5), characterized by: the dining table is characterized in that the two ends of the upper side of the dining table (5) are fixedly connected with the dining table taking table (3) through first fixing columns (4), the two ends of the upper side of the dining table taking table (3) are fixedly connected with the illuminating lamp covers (1) through second fixing columns (2), one side of the upper portion of the dining table (5) is provided with a group of clamping grooves (6) which are uniformly distributed, and each clamping groove (6) is internally and fixedly connected with an RFID reader-writer (7).

2. The anti-interference RFID reader-writer device applied to smart catering of claim 1, wherein: every RFID read write line (7) include RFID read write circuit, epitheca (9) and shell (10) respectively, the upside of epitheca (9) with the mesa parallel and level of dining table (5), shell (10) open-top, the upside fixed connection of shell (10) epitheca (9), RFID read write circuit sets up in the casing that shell (10) and epitheca (9) formed, support column (12) of shell (10) inside fixed connection symmetry.

3. The anti-interference RFID reader-writer device applied to smart catering of claim 2, wherein: RFID reading and writing circuit includes antenna panel (11) and control panel (14), antenna panel (11) electric connection control panel (14), control panel (14) fixed mounting be in the inside bottom of shell (10), antenna panel (11) are fixed in the symmetry the upper end of support column (12), the symmetry support column (12) pass the round hole (13) of the symmetry that sets up on control panel (14), antenna panel (11) are close to epitheca (9).

4. The anti-interference RFID reader-writer device applied to smart catering of claim 3, wherein: the shell (10) is a metal shell.

5. The anti-interference RFID reader-writer device applied to smart catering of claim 3, wherein: the control panel (14) comprises a main MCU and a radio frequency chip U1, wherein the main MCU is electrically connected with the radio frequency chip U1, the main MCU is electrically connected with a buzzer B1, the main MCU is electrically connected with an indicator light, and the radio frequency chip U1 is electrically connected with the antenna panel (11).

6. The anti-interference RFID reader-writer device applied to smart catering of claim 5, wherein: a pin 17 of the main MCU is electrically connected with a pin 30 of the radio frequency chip U1, a pin 16 of the main MCU is electrically connected with a pin 29 of the radio frequency chip U1, and a pin 15 of the main MCU is electrically connected with a pin 31 of the radio frequency chip U1; the pin 14 of the main MCU is electrically connected with the pin 32 of the radio frequency chip U1; the pin 19 of the main MCU is electrically connected with the pin 27 of the radio frequency chip U1, the pin 39 of the main MCU is electrically connected with a buzzer B1 through a control circuit consisting of a resistor R36, a triode Q1 and a diode D8, the pin 45 of the main MCU is electrically connected with a plurality of groups of indicator lamps through a control circuit consisting of a resistor R23, a resistor R24, a triode Q3, a resistor R25 and a MOS tube Q5, the pin 10 of the radio frequency chip U1 is electrically connected with the antenna board (11) through an impedance matching circuit, and the pin 22 of the radio frequency chip U1 is electrically connected with the antenna board (11) through capacitors C62 and C63.