Wireless data acquisition device with wireless energy supply function on basis of Qi protocols

Abstract

The invention discloses a wireless data acquisition device with a wireless energy supply function on the basis of Qi protocols. The wireless data acquisition device is characterized by comprising a sensor module, a wireless charge receiver and a wireless charge transmitter; the sensor module is connected with the wireless charge receiver so as to be used for feeding data; the wireless charge transmitter is arranged in a sensing range of the wireless charge receiver so as to be used for transmitting electric energy; the wireless charge transmitter comprises a primary coil, an inversion circuit,a first power circuit, a first MCU (microprogrammed control unit), a decoding circuit and a current detection circuit, and the wireless charge receiver comprises a secondary coil, a rectification circuit, a second MCU, a second power circuit and a load modulation circuit. The wireless data acquisition device has the advantages that power can be supplied for data acquisition ends by the aid of thewireless charge transmitter and the wireless charge receiver on the basis of the Qi protocols, accordingly, battery equipment for the data acquisition ends can be omitted, and the problem of inconvenience in replacement and maintenance in later periods can be solved; extra wireless transmission modules can be omitted, accordingly, the cost can be saved, and the wireless data acquisition device isfree of spatial frequency resource occupation.

Description

technical field [0001] The invention relates to the field of data acquisition, in particular to a wireless data acquisition device based on Qi protocol wireless power supply. Background technique [0002] Traditional data acquisition devices need to be connected to data lines and power lines. However, in many cases, the wiring of data acquisition terminals is very troublesome, and wireless data acquisition devices must be used. However, general wireless data acquisition devices must be equipped with energy supply devices at the data acquisition end, such as buttons. Batteries or dry batteries, etc. [0003] However, the battery equipment needs to be replaced regularly to maintain the normal operation of the data acquisition end, and later maintenance is very inconvenient; in addition, both the data acquisition end and the data receiving end need to be equipped with a wireless transmission module to complete the reading of the sensor data, which not only increases the cost bu...

AI Technical Summary

Problems solved by technology

[0002]Traditional data acquisition devices need to be connected to data lines and power lines. The acquisition device must be equipped with energy supply devices at the data acquisition end, such as button batteries or dry batteries, etc.

[0003]However, the battery equipment needs to be replaced regularly to maintain the normal operation of the data acquisition end, and later maintenance is very inconvenient; in addition, both the data acquisition end and the data receiving end need to be equipped with wireless transmission modules, In order to complete the reading of sensing data, it not only increases the cost but also occupies space and frequency band resources. It is not only easily affected by the transmission of other wireless devices, but also easily affects the communication of other wireless devices.

Images