High-speed and continuous transmission solution

Because the performance of the main control chip and the RF chip of the wireless module on the market is not good, the stability is not strong, and only small data packet transmission can be realized, so in the face of big data, automatically sub-packet processing is required. The existing modules have poor handling ability for power supply, which makes the power supply have a high impact on the RF circuit, which greatly reduces the transmission capacity of the module.

To solving the problems existing in the prior art, a high-speed,continuous wireless transmission device is provided, which has low powerconsumption, high sensitivity, stable performance, and uses narrow-bandtransmission, long transmission distance, and fast transmission speed.

E61-TTL-1W fromEbyte is a high-speed 433M wireless data transmission module with built-inhigh-performance single-chip microcomputer and high-speed wireless RF chip. Inthe "continuous transmission mode", the length of the data packet isnot limited, and the continuous uninterrupted transmission of the serial portbaud rate of 57600/38400/19200/9600...... is perfectly realized. The parameterscan be flexibly configured under the "fixed-length transmission mode".The packet is transmitted to the other party in the most efficient manner atthe currently configured air rate for low latency/high response.

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The moduleincludes a main control chip, a wireless RF chip and an antenna interface. Themain control chip connect to the computer through UART module, and the maincontrol chip connect to the wireless RF chip through SPI. and the first RFswitch is connected to the transceiver path of the wireless RF chip. The firstRF switch is respectively connected with a power amplifier located in thetransmitting path, a low noise amplifier located in the receiving path, thepower amplifier and the low noise amplifier are also connected to the second RFswitch, and the second RF switch is connected to the antenna, and is connectedThe fifth RF switch and the antenna connection path are provided with afifth-order π-type filter, an ESD anti-static protection circuit, and a DCblocking capacitor.

The maincontrol chip and the wireless RF chip are respectively connected with a firstLDO linear power supply module, the power amplifier is connected with a DC-DCswitching power supply module, the low noise amplifier is connected with asecond LDO linear power supply module, and the first LDO linear power supplymodule is provided with π Type filter.

Preferably,the main control chip adopts STM8L151G6U6.

Preferably,the wireless RF chip adopts AX5043.

Preferably,the π-type filter comprises a capacitor and an inductor.

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Due tothe adoption of the above technical solutions, the beneficial effects of thepresent invention are:

The high-speedcontinuous wireless transmission device of the utility model can be integratedwith one module, has small volume and is convenient to use; in particular, themain control chip and the wireless RF chip are stable and high-performance, andare used together to process a large amount of data; after the RF circuit isprocessed, The module is greatly optimized, and its harmonics, standing waveratio, and receiving sensitivity are greatly improved, and the communicationcapability is improved.