WASET
	@article{(Open Science Index):https://publications.waset.org/pdf/9998513,
	  title     = {A Wireless Sensor Network Protocol for a Car Parking Space Monitoring System},
	  author    = {Jung-Ho Moon and  Myung-Gon Yoon and  Tae Kwon Ha},
	  country	= {},
	  institution	= {},
	  abstract     = {This paper presents a wireless sensor network protocol for a car parking monitoring system. A wireless sensor network for the purpose is composed of multiple sensor nodes, a sink node, a gateway, and a server. Each of the sensor nodes is equipped with a 3-axis AMR sensor and deployed in the center of a parking space. The sensor node reads its sensor values periodically and transmits the data to the sink node if the current and immediate past sensor values show a difference exceeding a threshold value. The operations of the sink and sensor nodes are described in detail along with flow diagrams. The protocol allows a low-duty cycle operation of the sensor nodes and a flexible adjustment of the threshold value used by the sensor nodes.
},
	    journal   = {International Journal of Computer and Information Engineering},
	  volume    = {8},
	  number    = {6},
	  year      = {2014},
	  pages     = {957 - 960},
	  ee        = {https://publications.waset.org/pdf/9998513},
	  url   	= {https://publications.waset.org/vol/90},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 90, 2014},
	}