Wireless accelerometer device

Abstract

The invention provides a wireless acceleration sensor device which comprises a wireless minitype electronic mechanical system acceleration sensing detection device, an energy storage element, a main control circuit, a semi-active RFID integrated circuit and an antenna of the semi-active RFID integrated circuit. The acceleration sensing detection device is connected to a comparator circuit in the main control circuit which is connected with a digital interface of the semi-active RFID integrated circuit through a synchronous serial peripheral interface, an analog interface of the semi-active RFID integrated circuit is connected with the energy storage element, and the energy storage element is connected with the main control circuit and the acceleration sensing detection device. Data in the sales process can be collected and fed back in real time, an external power source is not needed, the semi-active RFID integrated circuit is also used as a charging circuit, can receive electromagnetic signals, convert the electromagnetic signals to electric energy, and charge the energy storage element, the energy storage element provides power for work of the wireless acceleration sensor device, a real-time online state is achieved, and maintenance cost of merchants is greatly lowered.

Description

technical field [0001] The invention belongs to the field of electronic information and is suitable for a wireless acceleration sensor device for measuring the state of an object in a long distance. technical background [0002] In the retail industry, with the rise of new sales methods such as experiential sales and real-time statistical mining of sales data, real-time collection and feedback of data during the sales process is required. Real-time collection of commodity status information can be realized by using sensors, and the data can be fed back to the background by using RFID technology. And according to the duration of the product status change, the collected data can be effectively analyzed and mined to obtain useful information, such as the number of people who are interested in the product, the effective attention of the product, and so on. [0003] However, the sensors of existing equipment are generally based on vibration sensors, which can mainly analyze the ...

AI Technical Summary

Problems solved by technology

[0003] However, the sensors of existing equipment are generally based on vibration sensors, which can mainly analyze the state of the item qualitatively, and it is difficult to do quantitative analysis, especially human factors, which cause the sensor to work for a long time, high power consumption, and short service life

[0004] At the same time, the existing wireless data transmission generally needs an external power supply for the radio frequency transmission circuit, so the sensor device consumes power all the time, and the entire life is limited

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