After the nucleic acid robot and nucleic acid mobile workstation, the epidemic prevention monitoring bracelet has also become popular! So what is it? The electronic bracelet has the functions of real-time temperature measurement, monitoring blood pressure, respiratory rate, etc. It can conduct remote health monitoring on the temperature and other information of key populations, which provides a strong technical guarantee for the normalization of epidemic prevention and control.
The working principle of the epidemic prevention monitoring bracelet is not complicated. After the signal is sent by the positioning electronic wrist strap, it is received by the positioning bracelet management platform, and then fed back to the control center to correct the position and running track of the personnel, so as to achieve easy supervision.
The realization of these functions benefits from the crystal oscillator as the core component, which uses its piezoelectric characteristics to provide high-precision frequency electrical signals for intelligent products.
During epidemic prevention, it is very important to monitor the real-time track of isolated people. The Bluetooth positioning function of the epidemic prevention monitoring bracelet should ensure that there is no risk, and there are certain requirements for the precision of the crystal oscillator. For epidemic prevention monitoring bracelet, high-precision crystal oscillator can quickly and accurately realize data interaction.
In order to make it convenient for people to wear, most epidemic prevention monitoring bracelets are designed to be small, and the space of the internal PCB board is limited. Therefore, the size of the crystal oscillator selected needs to be considered. The commonly used package sizes are 3225, 2016, etc; Frequency points include 16MHz, 24MHz, 32MHz, etc. Most of them are passive crystal resonators (crystal resonators).
Model of passive crystal oscillator recommended for epidemic prevention monitoring bracelet: YSX321SL (3225), YSX211SL (2016), with high precision, small size, excellent heat resistance and environmental resistance, can give play to the excellent electrical characteristics of crystal oscillator, comply with RoHS certification, and meet the requirements of high temperature reflux temperature curve for lead-free welding.
Model of passive crystal oscillator recommended for epidemic prevention monitoring bracelet: YSX321SL (3225), YSX211SL (2016), with high precision, small size, excellent heat resistance and environmental resistance, can give play to the excellent electrical characteristics of crystal oscillator, comply with RoHS certification, and meet the requirements of high temperature reflux temperature curve for lead-free welding.