Real-Time Demonstration of over 20Gbps V- and W-Band Wireless Transmission Capacity in one OFDM-RoF System

2017 ◽  
Author(s):  
Xinying Li ◽  
Xin Xiao ◽  
Yuming Xu ◽  
Kaihui Wang ◽  
Li Zhao ◽  
...  
Keyword(s):  
Real Time ◽  
Transmission Capacity ◽  
Wireless Transmission ◽  
W Band

Transfusion Monitoring and Controlling System Based on Wireless Communication

2012 ◽  
Vol 214 ◽  
pp. 579-583
Author(s):  
Jiang Ma ◽  
Yu Qiao Wen ◽  
Ling Yan Du ◽  
Xiao Xiao Liang ◽  
Chong Gang Wei
Keyword(s):  
Communication Network ◽  
Wireless Communication ◽  
Real Time ◽  
Wireless Transmission ◽  
The Core ◽  
Wireless Transceiver ◽  
Controlling System ◽  
Transceiver Module ◽  
Medical Accident

Transfusion monitoring and controlling system of wireless communication is designed for avoidance of medical accident due to inconsiderate care. This system is based on RS-485 bus protocol to build the communication network, consisting of master computer and slave computer. STM32F103R8T6 MCU is the core of the master computer, and MSP430F2132 MCU for slave computer. The wireless transmission of data between master computer and slave computer can be done by nRF905 wireless transceiver module. One new calculation of drop speed is used for better real-time displaying thereof. Provided that abnormal occurrence is during the transfusion, the transfusion tube will be closed by controlling order from system, in order to protect the patient.

scholarly journals Research on the Device Design for Calculation Distribution Line Loss Based on Dynamic Three-phase Unbalance Degree

2019 ◽  
Vol 118 ◽  
pp. 02071
Author(s):  
Meifang Wei ◽  
Jing Yang ◽  
Xuhua Zeng ◽  
Haiyan Wu ◽  
Di Huang
Keyword(s):  
Real Time ◽  
Distribution Network ◽  
Wireless Transmission ◽  
Loss Calculation ◽  
Sequence Identification ◽  
Phase Sequence ◽  
Three Phase ◽  
Time Calculation ◽  
Distribution Line ◽  
Line Loss

For the power distribution network line loss calculation, there are some problems, such as backward method, long calculation period, large workload and poor real-time performance. To this end, this paper proposes a real-time calculation method for distribution line loss based on dynamic three-phase unbalance, and a hardware device system with unbalanced phase sequence identification function, three-phase unbalance detection function and line loss real-time calculation function has been developed. The system uses a master-slave design based on the principle of wireless transmission. The slave collects standard three-phase current signals and transmits them to the host through wireless transmission. The host is installed on the low voltage side of the transformer in the transformer region, and the current signal of the transformer region is collected in real time. Unbalanced phase sequence identification, unbalance calculation, and line loss calculation based on dynamic unbalance are performed by comparing the current signals collected by the master and the slave. The above algorithm implementation process can be displayed online in real time. In addition to the core data processing and waveform display functions, the device also includes a battery power supply and management system, a signal storage and transmission system, and temperature measurement, and overcurrent and overvoltage protection. The test results of the device show that the device has the characteristics of convenient carrying, fast detection of three-phase unbalance, and accurate calculation of line loss. The device can monitor the running status of the distribution network transformer region in real time.

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