scholarly journals Direction Aware Bluetooth Low Energy Based Proximity Detection System for Construction Work Zone Safety

2016 ◽  
Author(s):  
J. Park ◽  
Y.K. Cho ◽  
S.K. Timalsinac
Keyword(s):  
Detection System ◽  
Low Energy ◽  
Work Zone ◽  
Construction Work ◽  
Bluetooth Low Energy ◽  
Work Zone Safety ◽  
Proximity Detection ◽  
Proximity Detection System

scholarly journals Construction Work Zone Safety

2003 ◽  
Author(s):  
Christopher Huebschman ◽  
Camilo Garcia ◽  
Darcy Bullock
Keyword(s):  
Work Zone ◽  
Construction Work ◽  
Work Zone Safety

Bluetooth Low-Energy-Based Applications

2018 ◽  
pp. 95-112
Author(s):  
Smita Sanjay Ambarkar ◽  
Rakhi Dattatraya Akhare
Keyword(s):  
Indoor Localization ◽  
Low Energy ◽  
Smart Devices ◽  
The Internet ◽  
Bluetooth Low Energy ◽  
Iot Applications ◽  
Proximity Detection ◽  
Battery Power ◽  
Commercial Market ◽  
The Internet Of Things

This chapter focuses on the comprehensive contents of various applications and principles related to Bluetooth low energy (BLE). The internet of things (IoT) applications like indoor localization, proximity detection problem by using Bluetooth low energy, and enhancing the sales in the commercial market by using BLE have the same database requirement and common implementation idea. The real-world applications are complex and require intensive computation. These computations should take less time, cost, and battery power. The chapter mainly focuses on the usage of BLE beacons for indoor localization. The motive behind the study of BLE devices is that it is supported by mobile smart devices that augment its application exponentially.

scholarly journals The conical conformal MEMS quasi-end-fire array antenna

2017 ◽  
Vol 31 (07) ◽  
pp. 1750115 ◽  
Author(s):  
Lin Cong ◽  
Lixin Xu ◽  
Jianhua Li ◽  
Ting Wang ◽  
Qi Han
Keyword(s):  
Detection System ◽  
Array Antenna ◽  
Internal Space ◽  
Performance Requirements ◽  
Proximity Detection ◽  
Cone Axis ◽  
Measurement Results ◽  
Proximity Detection System ◽  
First Time ◽  
Mems Process

The microelectromechanical system (MEMS) quasi-end-fire array antenna based on a liquid crystal polymer (LCP) substrate is designed and fabricated in this paper. The maximum radiation direction of the antenna tends to the cone axis forming an angle less than 90[Formula: see text], which satisfies the proximity detection system applied at the forward target detection. Furthermore, the proposed antenna is fed at the ended side in order to save internal space. Moreover, the proposed antenna takes small covering area of the proximity detection system. The proposed antenna is fabricated by using the flexible MEMS process, and the measurement results agree well with the simulation results. This is the first time that a conical conformal array antenna is fabricated by the flexible MEMS process to realize the quasi-end-fire radiation. A pair of conformal MEMS array antennas resonates at 14.2 GHz with its mainlobes tending to the cone axis forming a 30[Formula: see text] angle and a 31[Formula: see text] angle separately, and the gains achieved are 1.82 dB in two directions, respectively. The proposed antenna meets the performance requirements for the proximity detection system which has vast application prospects.

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