The inductive sensor is a device that uses the law of electromagnetic induction to realize non-electrical measurement through the change of the self-inductance and mutual inductance of the coil. It is characterized by the use of the physical characteristics of the inductance, which can measure displacement, vibration, pressure, flow and other signals without direct contact with the measured object.
Entering 2022, IoT technology is becoming more and more popular in all walks of life. LPWAN technology (low-power wide area network, long-distance IoT wireless communication technology) relies on wide signal coverage, small occupied bandwidth, large number of terminal connections, and low power consumption. , low cost and other advantages, to win a high penetration rate in the global market.
RSSI (Received Signal Strength Indication)——The received data signal strength indication, as an optional part in the wireless data transmission layer, is used to determine whether the quality of the transmission link is reliable and whether to increase the strength of broadcast data transmission.
IIoT (Industrial Internet of Things) is the abbreviation of Industrial Internet of Things. It integrates various acquisition and control sensors or controllers with sensing and monitoring capabilities, as well as mobile communication, intelligent analysis and other technologies into all aspects of the industrial production process. Significantly improve manufacturing efficiency, improve product quality, reduce product cost and resource consumption, and ultimately realize the promotion of traditional industries to a new stage of intelligence.
With the development of 5G and its deepening integration with the real economy, some practical problems have surfaced. Among them, cost and performance have become the two most prominent problems: first, the contradiction between the high cost of 5G terminal chips and modules to the terminal and the application of 5G in vertical industries; second, the actual demand for many application scenarios is medium speed requirements , the performance requirements are medium, the power consumption requirements are medium, and the requirements are higher than NB-IoT and lower than 5G.
Regarding PCB design, many electronic engineers are very skilled. As a technical developer, the PCB design process is not smooth sailing. For the "siege lions" of different levels (ranks), sometimes they are happy and sometimes sad.
Recently, China Mobile announced the launch of a 5G convenient nucleic acid collection station, providing a standardized solution for 5G convenient nucleic acid collection stations for 32 cities in 17 provinces (autonomous regions and municipalities). Nine provinces (autonomous regions and municipalities) including Jiangxi, Jiangsu, and Zhejiang have landed.
A transistor is a solid-state semiconductor device (including diodes, triodes, field effect transistors, thyristors, etc.), which has various functions such as detection, rectification, amplification, switching, voltage regulation and signal modulation.
There are many similarities between the two, such as: 2.4G frequency band. The wireless module power consumption is very low. They can all be located by the base station. Positioning can be assisted by third parties, because there are many similarities, there is hesitation when choosing a plan, of course, the final choice or from user scenarios, but from the perspective of technology development and reliability, Bluetooth positioning is the development of RFID direction, so let's do it together.