CN211702555U

CN211702555U - WIFI module circuit board

Info

Publication number: CN211702555U
Application number: CN202020627760.6U
Authority: CN
Inventors: 陈玲娜; 刘赢; 吴大洋
Original assignee: Shenzhen Yipu Zhilian Technology Co Ltd
Current assignee: Shenzhen Yipu Zhilian Technology Co Ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-10-16
Anticipated expiration: 2030-04-23

Abstract

A WIFI module circuit board comprises a main control chip, a PCB on-board antenna, a first crystal, a second crystal, a communication interface and a radio frequency test interface; the main control chip is electrically connected with the PCB on-board antenna, the first crystal, the second crystal and the communication interface respectively, and the radio frequency test interface is electrically connected with the PCB on-board antenna; the main control chip is used for operating an Internet of things operating system; the PCB onboard antenna is used for receiving and sending WIFI signals, so that the intelligent equipment and the cloud server exchange data with the main control chip through a WIFI protocol; the first crystal and the second crystal are used for providing a working clock signal for the WIFI module circuit board; the communication interface is used for the main control chip to exchange data with the intelligent equipment through the application module and the UART serial port; the radio frequency test interface is used for detecting the communication performance of the WIFI module circuit board in a development test stage; therefore, the function of simultaneously carrying out remote control and local control on the intelligent equipment is realized.

Description

WIFI module circuit board

Technical Field

The utility model relates to a thing networking technology field, concretely relates to WIFI module circuit board.

Background

As an implementation manner of family informatization and an important application scene of the internet of things, smart homes have become an important component of social informatization development, and with rapid development of smart devices, because the existing networking technology of the internet of things cannot simultaneously perform remote control and local control on the smart devices, the operating efficiency and stability of the smart homes are seriously affected, and therefore, a more efficient and stable networking technology of the internet of things is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art not enough, the utility model aims at providing a WIFI module circuit board solves the unable problem that carries out remote control and local control simultaneously to smart machine of current networking technology.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the method comprises the steps that a WIFI module circuit board is provided, is used for networking and controlling the Internet of things of intelligent equipment and comprises a main control chip, a PCB on-board antenna, a first crystal, a second crystal, a communication interface and a radio frequency test interface; the main control chip is electrically connected with the PCB on-board antenna, the first crystal, the second crystal and the communication interface respectively, and the radio frequency test interface is electrically connected with the PCB on-board antenna; the main control chip is used for operating an Internet of things operating system; the PCB on-board antenna is used for receiving and sending WIFI signals, so that the intelligent equipment and the cloud server exchange data with the main control chip through a WIFI protocol, and remote control over the intelligent equipment is achieved; the first crystal and the second crystal are used for providing a working clock signal for the WIFI module circuit board; the communication interface is used for the main control chip to exchange data with the intelligent equipment through an application module and a UART serial port so as to realize local control on the intelligent equipment; the radio frequency test interface is used for detecting the communication performance of the WIFI module circuit board in a development test stage.

Further, the communication interface comprises an SPI communication interface and a UART communication interface; the SPI communication interface comprises an SPI _ CLK, an SPI _ MISO, an SPI _ MOSI and an SPI _ CS and is used for the main control chip to control the intelligent equipment through the connection of the application module; the UART communication interface comprises UART1_ TXD, UART1_ CTS, UART1_ RTS, UART0_ RXD and UART0_ TXD, the UART1_ TXD, the UART1_ CTS and the UART1_ RTS are used for the master chip to control the smart device through the UART serial port connection, and the UART0_ RXD and the UART0_ TXD are used for development and debugging of the UART serial port.

Further, the WIFI module circuit board further comprises a PWM interface connected with the main control chip, and the PWM interface is used for controlling the intelligent equipment with the analog circuit.

Furthermore, the WIFI module circuit board further comprises a power interface, an enabling interface, a UART (universal asynchronous receiver/transmitter) download or FLASH starting interface, a first grounding interface, a second grounding interface, a bus expansion interface, a reset interface and a third grounding interface which are connected with the main control chip; the power interface is connected with an external power supply to supply power for the main control chip, the enable interface informs the main control chip when data is input, the UART download or FLASH start interface is used for the main control chip to start UART debugging or start FLASH cache, the first grounding interface, the second grounding interface and the third grounding interface are used for grounding of the main control chip, the bus expansion interface is used for connecting external equipment, and the reset interface is used for resetting of the main control chip.

Further, the first crystal is a 26MHz crystal.

Further, the second crystal is a 32KHz crystal.

Further, the model of the master control chip is MT 7682M.

Furthermore, the intelligent device comprises an intelligent gateway and intelligent household equipment.

Further, the application module is a sensor, a FLASH or a display screen, and data of the intelligent device is transmitted to the main control chip through the application module, or a control instruction of the main control chip is transmitted to the intelligent device through the application module.

Further, the WIFI module circuit board further includes resistors R1, R2, R4, R5, R6, R7, R8, and R9, capacitors C21, C19, C20, C18, C17, C16, C14, C15, C8, C24, C3, C4, C22, C23, C25, C1, C2, C11, C12, C13, C31, C29, C26, C10, C9, C28, C7, and C6, inductors L1 and L2, and a diode D601; wherein the capacitors C18, C19, C20 and C21 are parameter adjustment auxiliary elements for debugging the PCB on-board antenna through the radio frequency test interface; the capacitors C14, C16 and C17 filter signals received and transmitted by the PCB on-board antenna, and the resistors R1, R2, R4, R5, R6, R7, R8 and R9, the capacitors C15, C8, C24, C3, C4, C22, C23, C25, C1, C2, C11, C12, C13, C31, C29, C26, C10, C9, C28, C7 and C6, the inductors L1 and L2, and the diode D601 form an auxiliary circuit of the WIFI module circuit board.

Compared with the prior art, the WIFI module circuit board has the advantages that the WIFI module circuit board provided by the utility model comprises a main control chip, a PCB on-board antenna, a first crystal, a second crystal, a communication interface and a radio frequency test interface; the main control chip is electrically connected with the PCB on-board antenna, the first crystal, the second crystal and the communication interface respectively, and the radio frequency test interface is electrically connected with the PCB on-board antenna; the main control chip is used for operating an Internet of things operating system; the PCB onboard antenna is used for receiving and sending WIFI signals, so that the intelligent equipment and the cloud server exchange data with the main control chip through a WIFI protocol, and remote control over the intelligent equipment is achieved; the first crystal and the second crystal are used for providing a working clock signal for the WIFI module circuit board; the communication interface is used for connecting the control application module and the UART serial port so as to realize local control on the intelligent equipment; the radio frequency test interface is used for detecting the communication performance of the WIFI module circuit board in a development test stage; therefore, the problem that the existing networking technology cannot simultaneously carry out remote control and local control on the intelligent equipment is solved.

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 will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of 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 the embodiment of the utility model provides a schematic diagram of WIFI module circuit board.

The mark in the figure is 1, a main control chip; 2. a PCB on-board antenna; 3. a radio frequency test interface; 4. a first crystal; 5. a second crystal; 01. a power interface; 02. enabling the interface; 03. SPI _ CLK; 04. SPI _ MISO; 05. SPI _ MOSI; 06. SPI _ CS; 07. UART1_ TXD; 08. UART downloading or FLASH starting interface; 09. a first ground interface; 10. a PWM control interface; 11. UART0_ RXD; 12. UART0_ TXD; 13. a second ground interface; 14. a bus expansion interface; 15. resetting the interface; 16. UART1_ CTS; 17. UART1_ RTS; 18. and a third ground interface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 shows a preferred embodiment of the present invention.

The WIFI module circuit board provided by the embodiment comprises a main control chip 1, a PCB on-board antenna 2, a first crystal 4, a second crystal 5, a communication interface and a radio frequency test interface 3; the main control chip 1 is respectively electrically connected with the PCB on-board antenna 2, the first crystal 4, the second crystal 5 and the communication interface, and the radio frequency test interface 3 is electrically connected with the PCB on-board antenna 2; the main control chip 1 is used for operating an operating system of the Internet of things; the PCB onboard antenna 2 is used for receiving and sending WIFI signals, so that the intelligent equipment and the cloud server exchange data with the main control chip 1 through a WIFI protocol, and remote control over the intelligent equipment is achieved; the first crystal 4 and the second crystal 5 are used for providing a working clock signal for the WIFI module circuit board; the communication interface is used for the main control chip 1 to exchange data with the intelligent equipment through the application module and the UART serial port so as to realize local control on the intelligent equipment; the radio frequency test interface 3 is used for detecting the communication performance of the WIFI module circuit board in a development test stage.

The WIFI module circuit board provided by the technical scheme comprises a main control chip 1, a PCB on-board antenna 2, a first crystal 4, a second crystal 5, a communication interface and a radio frequency test interface 3; the main control chip 1 is respectively electrically connected with the PCB on-board antenna 2, the first crystal 4, the second crystal 5 and the communication interface, and the radio frequency test interface 3 is electrically connected with the PCB on-board antenna 2; the main control chip 1 is used for operating an operating system of the Internet of things; the PCB onboard antenna 2 is used for receiving and sending WIFI signals, so that the intelligent equipment and the cloud server exchange data with the main control chip 1 through a WIFI protocol, and remote control over the intelligent equipment is achieved; the first crystal 4 and the second crystal 5 are used for providing a working clock signal for the WIFI module circuit board; the communication interface is used for the main control chip 1 to exchange data with the intelligent equipment through the application module and the UART serial port so as to realize local control on the intelligent equipment; the radio frequency test interface 3 is used for detecting the communication performance of the WIFI module circuit board in a development test stage; therefore, the problem that the existing networking technology cannot simultaneously carry out remote control and local control on the intelligent equipment is solved.

Preferably, the PCB board-mounted antenna 2 is designed by adopting the technical scheme disclosed by the patent name PCB of the patent publication No. CN207052756U and the circuit board.

As an embodiment of the present invention, the communication interface includes an SPI communication interface and a UART communication interface; the SPI communication interface comprises an SPI _ CLK03, an SPI _ MISO04, an SPI _ MOSI05 and an SPI _ CS06, and is used for connecting and controlling the intelligent device through the application module by the main control chip 1; the UART communication interfaces include UART1_ TXD07, UART1_ CTS16, UART1_ RTS17, UART0_ RXD11 and UART0_ TXD12, UART1_ TXD07, UART1_ CTS16 and UART1_ RTS17 are used for the master chip 1 to control the smart device through the UART serial port connection, and UART0_ RXD11 and UART0_ TXD12 are used for development and debugging of the UART serial port.

Specifically, SPI _ CLK03 is a clock interface, SPI _ MISO04 is a bus master output interface, SPI _ MOSI05 is a bus master input interface, SPI _ CS06 is a chip select signal interface, UART1_ TXD07 is a UART drive interface, UART1_ CTS16 is a UART allowed transmitting end, UART1_ RTS17 is a UART request transmitting end, UART0_ RXD11 is a UART download receiving end, and UART0_ TXD12 is a UART download transmitting end.

As an embodiment of the utility model, this WIFI module circuit board still includes the PWM interface that links to each other with main control chip 1, and the PWM interface is used for controlling the smart machine that has analog circuit. In particular, the smart device with the analog circuit is a smart device with an LED lamp or a motor or similar actuator.

As an implementation manner of the present invention, the WIFI module circuit board further includes a power interface 01, an enable interface 02, a UART download or FLASH start interface 08, a first ground interface 09, a second ground interface 13, a bus extension interface 14, a reset interface 15, and a third ground interface 18 connected to the main control chip 1; the power interface 01 is connected with an external power supply to supply power to the main control chip 1, the enable interface 02 informs the main control chip 1 when data is input, the UART download or FLASH start interface 08 is used for the main control chip 1 to start UART debugging or start FLASH cache, the first grounding interface 09, the second grounding interface 13 and the third grounding interface 18 are used for grounding the main control chip 1, the bus expansion interface 14 is used for connecting external equipment, and the reset interface 15 is used for resetting the main control chip 1.

Preferably, the first crystal 4 is a 26MHz crystal.

Preferably, the second crystal 5 is a 32KHz crystal.

Preferably, the model of the main control chip 1 is MT 7682M.

As an embodiment of the utility model, the smart machine includes intelligent gateway and intelligent household equipment.

As an implementation manner of the present invention, the application module is a sensor or a FLASH or a display screen, one end of the application module is connected to the communication interface, the other end of the application module is connected to the intelligent device, data of the intelligent device is transmitted to the main control chip 1 through the application module, or a control instruction of the main control chip 1 is transmitted to the intelligent device through the application module;

specifically, the UART serial port is a universal asynchronous transceiver transmitter for the intelligent device having the UART serial port to exchange data with the main control chip 1, that is, the intelligent device having the UART serial port is connected to the communication interface through the UART serial port, thereby realizing data exchange between the intelligent device and the main control chip 1.

Specifically, the external device connected to the bus expansion interface 14 is a printer, a scanner, an external network card, a flash memory disk, a mobile hard disk, or the like, which is used for expanding the function of the WIFI module circuit board.

Specifically, the WIFI module circuit board further includes resistors R1, R2, R4, R5, R6, R7, R8, and R9, capacitors C21, C19, C20, C18, C17, C16, C14, C15, C8, C24, C3, C4, C22, C23, C25, C1, C2, C11, C12, C13, C31, C29, C26, C10, C9, C28, C7, and C6, inductors L1 and L2, and a diode D601; the capacitors C18, C19, C20 and C21 are auxiliary elements for adjusting parameters of the PCB on-board antenna 2 by shooting 3; the capacitors C14, C16 and C17 filter signals received and transmitted by the PCB on-board antenna 2, and the resistors R1, R2, R4, R5, R6, R7, R8 and R9, the capacitors C15, C8, C24, C3, C4, C22, C23, C25, C1, C2, C11, C12, C13, C31, C29, C26, C10, C9, C28, C7 and C6, the inductors L1 and L2, and the diode D601 form an auxiliary circuit of the WIFI module circuit board.

The embodiments of the present invention have been described in detail, but the invention is not limited to the embodiments, and those skilled in the art can make many equivalent modifications or substitutions without departing from the spirit of the present invention, and the equivalent modifications or substitutions are included in the scope of protection defined by the claims of the present application.

Claims

The WIFI module circuit board is used for networking and controlling the Internet of things of intelligent equipment and comprises a main control chip, a PCB (printed Circuit Board) onboard antenna, a first crystal, a second crystal, a communication interface and a radio frequency test interface; the main control chip is electrically connected with the PCB on-board antenna, the first crystal, the second crystal and the communication interface respectively, and the radio frequency test interface is electrically connected with the PCB on-board antenna; the main control chip is used for operating an Internet of things operating system; the PCB on-board antenna is used for receiving and sending WIFI signals, so that the intelligent equipment and the cloud server exchange data with the main control chip through a WIFI protocol, and remote control over the intelligent equipment is achieved; the first crystal and the second crystal are used for providing a working clock signal for the WIFI module circuit board; the communication interface is used for the main control chip to exchange data with the intelligent equipment through an application module and a UART serial port so as to realize local control on the intelligent equipment; the radio frequency test interface is used for detecting the communication performance of the WIFI module circuit board in a development test stage.
2. The WIFI module circuit board of claim 1 wherein the communication interface includes an SPI communication interface and a UART communication interface; the SPI communication interface comprises an SPI _ CLK, an SPI _ MISO, an SPI _ MOSI and an SPI _ CS and is used for the main control chip to control the intelligent equipment through the connection of the application module; the UART communication interface comprises UART1_ TXD, UART1_ CTS, UART1_ RTS, UART0_ RXD and UART0_ TXD, the UART1_ TXD, the UART1_ CTS and the UART1_ RTS are used for the master chip to control the smart device through the UART serial port connection, and the UART0_ RXD and the UART0_ TXD are used for development and debugging of the UART serial port.
3. The WIFI module circuit board of claim 1, further comprising a PWM interface connected to the main control chip, the PWM interface being configured to control the smart device having an analog circuit.
4. The WIFI module circuit board of claim 1 or 3, further comprising a power interface, an enable interface, a UART download or FLASH start interface, a first ground interface, a second ground interface, a bus extension interface, a reset interface, and a third ground interface connected to the main control chip; the power interface is connected with an external power supply to supply power for the main control chip, the enable interface informs the main control chip when data is input, the UART download or FLASH start interface is used for the main control chip to start UART debugging or start FLASH cache, the first grounding interface, the second grounding interface and the third grounding interface are used for grounding of the main control chip, the bus expansion interface is used for connecting external equipment, and the reset interface is used for resetting of the main control chip.
5. The WIFI module circuit board of claim 1 wherein the first crystal is a 26MHz crystal.
6. The WIFI module circuit board of claim 1 wherein the second crystal is a 32KHz crystal.
7. The WIFI module circuit board of claim 1, wherein the main control chip is MT7682M in model number.
8. The WIFI module circuit board of claim 1 or 3, wherein the smart device comprises a smart gateway and smart home equipment.
9. The WIFI module circuit board of claim 1 or 2, wherein the application module is a sensor, a FLASH or a display screen, data of the intelligent device is transmitted to the main control chip through the application module, or a control instruction of the main control chip is transmitted to the intelligent device through the application module.
10. A WIFI module circuit board according to claim 4, further comprising resistors R1, R2, R4, R5, R6, R7, R8 and R9, capacitors C21, C19, C20, C18, C17, C16, C14, C15, C8, C24, C3, C4, C22, C23, C25, C1, C2, C11, C12, C13, C31, C29, C26, C10, C9, C28, C7 and C6, inductors L1 and L2, and a diode D601; wherein the capacitors C18, C19, C20 and C21 are parameter adjustment auxiliary elements for debugging the PCB on-board antenna through the radio frequency test interface;

the capacitors C14, C16 and C17 filter signals received and transmitted by the PCB on-board antenna, and the resistors R1, R2, R4, R5, R6, R7, R8 and R9, the capacitors C15, C8, C24, C3, C4, C22, C23, C25, C1, C2, C11, C12, C13, C31, C29, C26, C10, C9, C28, C7 and C6, the inductors L1 and L2, and the diode D601 form an auxiliary circuit of the WIFI module circuit board.