From a definition point of view, UWB UWB technology is a new kind of communication technology that is very different from traditional communication technologies. From the point of view of function, UWB systems have both wireless communication and positioning functions. In front of SKYLAB, there is Introduced the UWB indoor positioning application, this SKYLAB Jun and everyone to talk about UWB ranging principle and UWB module SKU603 ranging applications.
UWB ranging principle and UWB module SKU603
For some specific applications, such as asset tracking, personnel tracking, home security, location information is the most critical information. Therefore, precise ranging and positioning functions are very important for these applications. In practical applications, using the SKYLAB SKU603 module for ranging, the ranging accuracy can reach an accuracy of 10 centimeters, and the longest distance can reach over 150 meters, which is widely used in industrial measurement and other industries.
UWB ranging principle:
UWB ranging is mainly based on the TOF ranging method and belongs to the two-way ranging technology. UWB module ranging is achieved by multiplying the UWB signal propagation time between two modules and multiplying the speed of light. The specific calculation formula is as shown in the following figure. Show:
UWB range calculation formula
Distance = TOF*C (light speed)
UWB module SKU603:
UWB ranging module SKU603
The UWB module SKU603 integrates the DW1000 and GD32F130G8U6 MCUs and integrates the antenna, all RF circuits, power management and clock circuitry into one module. The SKU603 integrates a triaxial accelerometer to save static power consumption. It is used for bi-directional ranging or TDOA positioning systems with a positioning accuracy of 10 centimeters and supports data transfer rates up to 6.8 Mbps. UWB can also be used in small-scale, high-resolution, radar and image systems that can penetrate walls, floors, and bodies, such as military, public security, firefighting, medical, rescue, surveying, exploration, and scientific research. Distance and positioning etc.
UWB module SKU603 features:
SKU603
Compatible with IEEE802.15.4-2011 UWB standard
Supports 6 RF bands from 3.5 GHz to 6.5 GHz
Transmit power can be adjusted by software
Compatible with FCC & ETSI UWB Spectrum Mask
The data rate is 110Kbps, 850Kbps, 6.8Mbps
Integrated Cortex ® -M3 core
Up to 48MHz
64 KB Flash and 8 KB SRAM
2 UART interfaces
One IIC interface and one JTAG debug port
More UWB module parameter characteristics and specific applications based on SKU603 can directly visit SKYLAB official website or Ali store.
The POE splitter is opposite to the POE power supply. POE power supply combines data signal and power, so POE power supply is also called POE combiner. The working process of the POE splitter is just the opposite, which separates the data signal from the power. If data terminals such as network cameras (IPC), wireless APs, and IP phones support POE power supply, you do not need to use a POE splitter when wiring, and you can directly supply power via a network cable. The POE splitter is mainly used for PSE devices such as POE switches and POE power supplies at the upper end, but the devices connected to the lower end do not support POE. The POE splitter separates the power supply into data signal and power. There are two output lines, one is the power output line, and the other is the network data signal output line, that is, the ordinary network cable. The power output has 5V/9/12V, etc., which can match various DC input non-POE power receiving terminals, and supports the IEEE 802.3af/802.3at standard. The data signal output line, that is, the ordinary network cable, can be directly connected to the network port of the non-POE power receiving terminal.
The POE splitter is used in conjunction with PSE power supply equipment to supply power to network equipment such as wireless APs, wireless routers, IP cameras, and IP phones in a network environment that lacks a power cord or is far from a power outlet. In many monitoring occasions, the best location for monitoring may not be very convenient for equipment to obtain power. The emergence of POE splitters facilitates the integration of equipment that does not support POE power supply into the POE network, and the monitoring equipment does not have to sacrifice the most to take care of the distance of the socket. Optimal installation location.
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