Wireless communication module operating at 230MHz frequency band

A wireless communication module, 230mhz technology, applied in the direction of electrical components, transmission systems, etc., can solve the problem of too much interference in the same frequency

Inactive Publication Date: 2015-09-02
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
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Problems solved by technology

However, these frequency bands also have more co-channel interference due to their wide application. A large number of co-channel interference replaces man-made noise and other interference and becomes a major constraint restricting wireless applications.

Method used

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  • Wireless communication module operating at 230MHz frequency band
  • Wireless communication module operating at 230MHz frequency band

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the present invention will be further described;

[0014] A 230MHz wireless transmitting module supporting the IEEE802.15.4g standard, including: a microcontroller module, a radio frequency communication module, a serial communication interface, a digital-to-analog converter, a low-pass filter, a quadrature mixer, a power amplifier, and impedance matching Circuits, antennas, and microcontroller modules acquire data, and the data is analyzed and processed and sent to the digital transmitter (TX BBP) in the radio frequency module through the serial communication interface to generate modulated signals, and then sent to the digital-to-analog converter (DAC) to form The analog modulation signal reduces high-frequency interference through a low-pass filter, and then superimposes the analog modulation signal and carrier signal through a quadrature mixer to modulate to a 230MHz radio frequency band. After the signal is transmitted...

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Abstract

The invention discloses a wireless communication module operating at a 230MHz frequency band. The wireless communication module comprises a transmitting module and a receiving module. The transmitting module of the wireless communication module uses a microcontroller chip to transmit processed data to a radio frequency chip in a serial interface communication manner and then the data is transmitted in the air in the form of electromagnetic waves. The receiving module transmits the acquired data to a master control chip via a serial interface. Analyzed and processed by the master control chip, the data is transmitted to a host computer in a serial port manner to be displayed in a visualized manner. Little interference is in the 230MHz frequency band. The wireless communication module is mainly used for distribution monitoring and wireless meter reading systems.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a wireless communication module. Background technique [0002] Wireless communication is a communication method that uses the characteristics of electromagnetic wave signals to freely propagate in the air to exchange information. With the rapid development of radio frequency technology and integrated circuit technology, people have higher and higher requirements for wireless communication. Short-range, convenient and cheap Wireless communication technology is attracting more and more attention. Therefore, it is of great significance to design a wireless communication module with fast data transmission, strong anti-interference ability and low energy consumption. [0003] At present, the frequency bands used in wireless communication applications at home and abroad mainly include 433MHz, 470MHz, 915MHz and 2.4GHz. However, these frequency bands also have more co-channel int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40
Inventor 严冬柏桐王平龙国强陈俊生李景林贺政
Owner CHONGQING UNIV OF POSTS & TELECOMM
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