A credit card sized self powered smart sensor node
نویسندگان
چکیده
This paper reports a self powered smart sensor node (also called ‘smart tag’) consisting of a piezoelectric vibration energy harvester, a power conditioning circuit, sensors and an RF transmitter. The smart tag has dimensions similar to a credit card and can be easily integrated into various applications such as the ibration energy harvesting iezoelectric generator elf-powered ireless sensor node surface of the aircraft. The smart tag is powered by an integrated bimorph piezoelectric generator that extracts energy from ambient vibrations. The generator is fabricated using thick film printing technology. Experimentally, the generator produced a maximum RMS output power of 240 W when excited at vibration with a frequency of 67Hz and peak amplitude of 0.4 g (3.9ms−2). This generated power is sufficient to enable periodic sensing and transmission. Details of the experimental results of the piezoelectric generator and the power conditioning circuit are presented. Test shows that the waiting time of the system between two consecutive transmissions is around 800 s.
منابع مشابه
A Self Powered Tag for Wireless Structure Health Monitoring in Aeronautical Applications
This paper reports a self powered smart tag consisting of a vibration energy harvester, the power conditioning circuit, sensors and a RF transmitter for wireless structural health monitoring (SHM) in aeronautical applications. The smart tag has dimensions similar to a credit card and aims to be integrated into the surface of the aircraft. The smart tag is powered by an integrated bimorph piezoe...
متن کاملPackaging strategy for maximizing the performance of a screen printed piezoelectric energy harvester
This paper reports the extended design and simulation of a screen printed piezoelectric energy harvester. The proposed design was based on a previous credit card sized smart tag sensor node, and packages the power conditioning circuit in the free space above the tungsten proof mass layer. This approach enables electronic components to be mounted onto the cantilever beam. These are used to provi...
متن کاملAdvances in Smartcard Security
Hardware architecture Smartcards come in different shapes. First of all there is a distinction between contact cards and contact-less cards. The first kind is easily recognised by the characteristic contact stamp that appears on both credit-card sized and SIM card sized versions. The second one is more difficult to identify because the chip may be hidden not only inside a credit-card sized cont...
متن کاملDemographics, attitude, personality and credit card features correlate with credit card debt: A view from China
With the help of a commercial bank in China, we studied consumer credit card debt behavior in correlation with demographics, attitude, personality, and credit card features factors. The study was conducted by using mail-in questionnaires, which were sent to credit card holders who was using or had used either revolving credit or petty installment plans. According to regression functions, we fou...
متن کاملMulti Factor Authentication Protocols for a Secured Wsn
WSN is an embedded system with the network properties of self configuration, self healing, dynamic routing and multi hop communication and sensor nodes are scattered in sensor field. WSN is ubiquitous in nature but nodes have limited energy resources and memory constraints, the protocols designed for sensor networks should be energy efficient. Security access to the sensor networks is a critica...
متن کامل