CN210899158U

CN210899158U - Chip-based WiFi module with keys

Info

Publication number: CN210899158U
Application number: CN201920736814.XU
Authority: CN
Inventors: 邹伟; 顾志强
Original assignee: Shenzhen Xin Yupeng Electronic Technology Co ltd
Current assignee: Shenzhen Xin Yupeng Electronic Technology Co ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-06-30
Anticipated expiration: 2029-05-22

Abstract

The utility model is suitable for a wireless communication technology field. The utility model discloses a chip-based WiFi module with keys, which comprises an antenna unit (1), a radio frequency circuit unit (2), a main control chip unit (3), a serial port level conversion unit (4), a communication circuit unit (5), a chip level conversion unit (6), a key unit (7) and an LED indicator light unit (8); the radio frequency circuit unit (2), the serial port level conversion unit (4), the chip level conversion unit (6), the key unit (7) and the LED indicator lamp unit (8) are connected with the main control chip unit (3); the serial port level conversion unit (4) is connected with the communication circuit unit (5); the beneficial effects of the utility model reside in that: on this product reduced the basis of wiFi module size, optimize the hardware design simultaneously, reduce the cost of wiFi module, and be equipped with the mode of button unit control wiFi module.

Description

Chip-based WiFi module with keys

Technical Field

The utility model relates to a wireless communication technology field, in particular to take chip-based wiFi module of button.

Background

The intelligent home is characterized in that a home is used as a platform, facilities related to home life are integrated by utilizing a comprehensive wiring technology, a network communication technology, a safety precaution technology, an automatic control technology and an audio and video technology, an efficient management system for home facilities and family schedule affairs is constructed, home safety, convenience, comfortableness and artistry are improved, and an environment-friendly and energy-saving living environment is realized; the intelligent home is embodied in an internet of things manner under the influence of the internet. The intelligent home arranges various devices in the home through the Internet of things technology as follows: the system comprises audio and video equipment, a lighting system, a curtain control system, an air conditioner control system, a security system, a digital cinema system, an audio and video server, a film cabinet system, network household appliances and the like which are connected together, and provides various functions and means such as household appliance control, lighting control, telephone remote control, indoor and outdoor remote control, anti-theft alarm, environment monitoring, heating and ventilation control, infrared forwarding, programmable timing control and the like. Compared with the common home, the intelligent home has the traditional living function, integrates the functions of building, network communication, information household appliance and equipment automation, provides an all-around information interaction function, and even saves funds for various energy expenses.

In the field of smart home, in order to realize applications such as home appliance data acquisition and home appliance control, a communication line is required to be used for connecting home appliances so as to realize transmission of acquired data or control signals. With the development of wireless communication modes such as WiFi and the like, more and more terminal devices with WiFi communication capacity are provided, and the complex wiring process during the existing communication through a wired link can be effectively reduced by using the WiFi communication terminal devices; the need for a WiFi module.

The existing WiFi module has the following defects: firstly, the cost is not cheap, especially for small household appliances, the price is not high; secondly, the industrial design of the small household appliances is compact, and the size space reserved for the WiFi module is not very large, so that the hardware size of the WiFi module is strictly limited; and thirdly, a WiFi module control key is lacked.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a take chip-based wiFi module of button, this a take chip-based wiFi module of button can reduce wiFi module size, reduce cost, and be equipped with the keying unit.

In order to solve the above problems, the utility model provides a chip-based WiFi module with keys, which comprises an antenna unit, a radio frequency circuit unit, a main control chip unit, a serial port level conversion unit, a communication circuit unit, a chip level conversion unit, a key unit and an LED indicator light unit; the radio frequency circuit unit, the serial port level conversion unit, the chip level conversion unit, the key unit and the LED indicator lamp unit are connected with the main control chip unit; the antenna unit is connected with the radio frequency circuit unit; the serial port level conversion unit is connected with the communication circuit unit; the antenna unit is used for sending and receiving wireless radio frequency signals, can convert the radio frequency signals of the radio frequency circuit unit into electromagnetic waves transmitted in the air, and can also collect the radio frequency signals from the electromagnetic waves in the air; the radio frequency circuit unit is used for converting the digital signals and the radio frequency signals of the main control chip unit, when the module needs to send data outwards, the main control chip unit sends the digital signals to the radio frequency circuit unit, the radio frequency circuit unit converts the digital signals into the radio frequency signals, and when the antenna unit receives electromagnetic waves in the air, the radio frequency circuit unit analyzes the electromagnetic waves, converts the electromagnetic waves into the digital signals and sends the digital signals to the main control chip unit for processing; the main control chip unit is used for running a program written by a user and is matched with other units to realize wireless data transmission; the serial port level conversion unit is used for converting a 5.0V level serial port signal of the household appliance control panel passing through the communication circuit unit into a 3.3V level serial port signal and sending the signal to the main control chip unit, or converting the 3.3V level serial port signal of the main control chip unit into a 5.0V level serial port signal and sending the signal to the household appliance control panel through the communication circuit unit; the communication circuit unit is used for communicating with a household appliance control panel, and the communication mode is a UART serial port; the chip level conversion unit converts the 5.0V voltage of the household appliance into 3.3V voltage and supplies the voltage to the main control chip unit; the key unit is used for function keys integrated with the WiFi module, and the WiFi module can enter different working modes through the keys; the LED indicator light unit is used for indicating light functions on the WiFi module, and the current working mode can be displayed through the indicator light.

Further, the chip-based WiFi module with the key is characterized in that the main control chip unit adopts an RTL8711AF chip.

When the wireless network control system is used, a communication circuit unit of a WiFi module is connected with a household appliance control panel, and a wireless network protocol IEEE802.11b/g/n protocol stack and a TCP/IP protocol stack are arranged in the WiFi module; the connected household appliances can be directly connected to the Internet by using WiFi signals through the WiFi module, so that wireless intelligent home, M2M and Internet of things application are realized; and the function of the key unit is restored to factory settings by quickly pressing the key for three times, and the key is pressed for more than three seconds to enter a distribution network mode.

The beneficial effects of the utility model reside in that: on this product reduced the basis of wiFi module size, optimize the hardware design simultaneously, reduce the cost of wiFi module, and be equipped with the mode of button unit control wiFi module.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a connection block diagram of each unit of the present invention.

Fig. 2 is a schematic view of the PCB of the present invention.

Fig. 3 is a circuit diagram of the rf circuit unit of the present invention.

Fig. 4 is a circuit diagram of the serial port level conversion unit of the present invention.

Fig. 5 is a circuit diagram of the chip level shift unit of the present invention.

Fig. 6 is a circuit diagram of the key unit of the present invention.

Fig. 7 is a circuit diagram of the LED indicator light unit of the present invention.

Fig. 8 is a circuit diagram of the connection of the pins of the RTL8711AF chip.

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1 to 8, the chip-based WiFi module with a key includes an antenna unit 1, a radio frequency circuit unit 2, a main control chip unit 3, a serial port level conversion unit 4, a communication circuit unit 5, a chip level conversion unit 6, a key unit 7, and an LED indicator light unit 8; the radio frequency circuit unit 2, the serial port level conversion unit 4, the chip level conversion unit 6, the key unit 7 and the LED indicator lamp unit 8 are connected with the main control chip unit 3; the antenna unit 1 is connected with the radio frequency circuit unit 2; the serial port level conversion unit 4 is connected with the communication circuit unit 5; the antenna unit 1 is used for sending and receiving wireless radio frequency signals, and can convert the radio frequency signals of the radio frequency circuit unit 2 into electromagnetic waves transmitted in the air and collect the radio frequency signals from the electromagnetic waves in the air; the radio frequency circuit unit 2 is used for converting the digital signal and the radio frequency signal of the main control chip unit 3, when the module needs to send data to the outside, the main control chip unit 3 sends the digital signal to the radio frequency circuit unit 2, the radio frequency circuit unit 2 converts the digital signal into the radio frequency signal, when the antenna unit 1 receives electromagnetic waves in the air, the radio frequency circuit unit 2 analyzes the electromagnetic waves, converts the electromagnetic waves into the digital signal, and sends the digital signal to the main control chip unit 3 for processing; the main control chip unit 3 is used for running a program written by a user and is matched with other units to realize wireless data transmission; the serial port level conversion unit 4 is used for converting a 5.0V level serial port signal of the household appliance control panel passing through the communication circuit unit 5 into a 3.3V level serial port signal and sending the 3.3V level serial port signal to the main control chip unit 3, or converting the 3.3V level serial port signal of the main control chip unit 3 into a 5.0V level serial port signal and sending the 5.0V level serial port signal to the household appliance control panel passing through the communication circuit unit 5; the communication circuit unit 5 is used for communicating with a household appliance control panel, and the communication mode is a UART serial port; the chip level conversion unit 6 converts the 5.0V voltage of the household appliance into 3.3V voltage and supplies the voltage to the main control chip unit 3; the key unit 7 is used for function keys integrated with the WiFi module, and the WiFi module can enter different working modes through the keys; the LED indicator light unit 8 is used for indicating light functions on the WiFi module, and the current working mode can be displayed through the indicator light.

Specifically speaking: a communication circuit unit 5 of a WiFi module is connected with a household appliance control panel, and a wireless network protocol IEEE802.11b/g/n protocol stack and a TCP/IP protocol stack are arranged in the WiFi module; the connected household appliances can be directly connected to the Internet by using WiFi signals through the WiFi module, so that wireless intelligent home, M2M and Internet of things application are realized; the key unit 7 has the functions of restoring factory settings by quickly pressing the third key and entering a distribution network mode by pressing the third key for more than three seconds.

Referring to fig. 1 and 8, the chip-based WiFi module with a key is characterized in that the main control chip unit 3 adopts an RTL8711AF chip.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments without departing from the spirit or scope of the present invention.

Claims

1. A chip-based WiFi module with keys is characterized by comprising an antenna unit (1), a radio frequency circuit unit (2), a main control chip unit (3), a serial port level conversion unit (4), a communication circuit unit (5), a chip level conversion unit (6), a key unit (7) and an LED indicator light unit (8); the radio frequency circuit unit (2), the serial port level conversion unit (4), the chip level conversion unit (6), the key unit (7) and the LED indicator lamp unit (8) are connected with the main control chip unit (3); the antenna unit (1) is connected with the radio frequency circuit unit (2); the serial port level conversion unit (4) is connected with the communication circuit unit (5); the antenna unit (1) is used for sending and receiving wireless radio frequency signals, and can convert the radio frequency signals of the radio frequency circuit unit (2) into electromagnetic waves transmitted in the air and collect the radio frequency signals from the electromagnetic waves in the air; the radio frequency circuit unit (2) is used for converting the digital signals and the radio frequency signals of the main control chip unit (3), when the module needs to send data outwards, the main control chip unit (3) sends the digital signals to the radio frequency circuit unit (2), the radio frequency circuit unit (2) converts the digital signals into the radio frequency signals, when the antenna unit (1) receives electromagnetic waves in the air, the radio frequency circuit unit (2) analyzes the electromagnetic waves, converts the electromagnetic waves into the digital signals and sends the digital signals to the main control chip unit (3) for processing; the main control chip unit (3) is used for running a program written by a user and is matched with other units to realize wireless data transmission; the serial port level conversion unit (4) is used for converting a 5.0V level serial port signal of the household appliance control panel passing through the communication circuit unit (5) into a 3.3V level serial port signal and sending the 3.3V level serial port signal to the main control chip unit (3), or converting the 3.3V level serial port signal of the main control chip unit (3) into a 5.0V level serial port signal and sending the 5.0V level serial port signal to the household appliance control panel passing through the communication circuit unit (5); the communication circuit unit (5) is used for communicating with a household appliance control panel, and the communication mode is a UART serial port; the chip level conversion unit (6) converts the 5.0V voltage of the household appliance into 3.3V voltage and supplies the voltage to the main control chip unit (3); the key unit (7) is used for function keys integrated with the WiFi module, and the WiFi module can enter different working modes through the keys; the LED indicator light unit (8) is used for indicating light functions on the WiFi module, and the current working mode can be displayed through the indicator light.

2. The chip-based WiFi module with keys as claimed in claim 1, wherein the main control chip unit (3) adopts an RTL8711AF chip.