Summary:
This text has mainly recommended a uses the wireless way to transmit the scheme of the datum, and because there is more energy consumed in wireless data transmission, join non- contact-type power supply function in the system. The system includes two dozens of contents: Wireless realization that supplies power and realization of wireless data transmission.
Wireless to supply power, according to principle of electromagnetic induction, make original separating with pair. Utilize H bridge sine take place circuit make square wave person who turn into sinusoidal wave, the electric energy turns into the magnetic field changed at first, reuse the rectification bridge and receive the circuit, can get a steady voltage.
Wireless data transmission realizes through hardware and software two respects. The hardware focuses on the choice with the module, in order to realize the low consumption on the premise of small volume, adopt Henan Anyang create century F05T and J04P that research institute produce as launch and receive the module. Software respect, the check-up of data has adopted CRC16 as the basic tool of check-up as the most important thing.
Utilize system this can realize data collector batch data wireless to upload already, do not use the electric energy of collector, facilitate users' use, keep the characteristic of the low consumption of the system, but the wireless efficiency that supplies power awaits improving.