scholarly journals Design of Indoor Temperature Monitoring and Energy Saving Control Technology Based on Wireless Sensor

2017 ◽  
Vol 13 (07) ◽  
pp. 100
Author(s):  
Yecong He ◽  
Min Tan

<p><span style="font-family: 宋体;">Considering the indoor temperature monitoring and energy saving control technology, based on the traditional low energy adaptive clustering hierarchy (LEACH), a multi-hop clustering routing algorithm is proposed. By adding a threshold in LEACH, the algorithm makes the nodes with high residual energy and high nodes become cluster heads. The results show that the improved algorithm can effectively prolong the life cycle of wireless sensor networks. Based on above findings, it is concluded that the proposed algorithm can save the system energy and improve the network energy efficiency.</span></p>

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Fengyin Li ◽  
Pei Ren ◽  
Guoyu Yang ◽  
Yuhong Sun ◽  
Yilei Wang ◽  
...  

Advances in machine learning (ML) in recent years have enabled a dizzying array of applications such as data analytics, autonomous systems, and security diagnostics. As an important part of the Internet of Things (IoT), wireless sensor networks (WSNs) have been widely used in military, transportation, medical, and household fields. However, in the applications of wireless sensor networks, the adversary can infer the location of a source node and an event by backtracking attacks and traffic analysis. The location privacy leakage of a source node has become one of the most urgent problems to be solved in wireless sensor networks. To solve the problem of source location privacy leakage, in this paper, we first propose a proxy source node selection mechanism by constructing the candidate region. Secondly, based on the residual energy of the node, we propose a shortest routing algorithm to achieve better forwarding efficiency. Finally, by combining the proposed proxy source node selection mechanism with the proposed shortest routing algorithm based on the residual energy, we further propose a new, anonymous communication scheme. Meanwhile, the performance analysis indicates that the anonymous communication scheme can effectively protect the location privacy of the source nodes and reduce the network overhead.


2014 ◽  
Vol 681 ◽  
pp. 235-238
Author(s):  
Xin Xin Zhou ◽  
Yan Zhao

Wireless sensor networks (WSNs) is taking an increasing role in our lives. Because the energy of the sensors is limited how to efficiently use the energy to prolong the lifecycle of the sensor networks is very important. In this paper, a novel energy-balanced dynamic routing algorithm based on ACO is proposed. The novel routing algorithm can dynamically choose routing according to the residual energy of the sensors and the sensors with more power is taken more data transfer tasks. The simulation results show that the proposed routing algorithm can effectively balance energy consumption and prolong the lifecycle of the networks.


2012 ◽  
Vol 443-444 ◽  
pp. 272-276 ◽  
Author(s):  
Hui Xian Han ◽  
Mao Fu Liu ◽  
Xian Li Cao

This paper analyzed the typical power process of construction machinery, led to the idea of energy saving and the concept of generalized energy saving, put forward energy saving control system of construction machinery according to the present two typical control technologies of construction machinery. In the quantitative analysis of energy saving effect, aiming to the shortcomings of the current energy saving technology difficult to quantify, the paper puts forward a formula of the global energy saving target, explains comparison and evaluation methods of energy saving effect, and gives the concrete realization modes of the global energy saving and generalized energy saving: full electronic control technology and distributed control technology. Finally the paper prospects the future development trend of energy saving technology in construction machinery.


2011 ◽  
Vol 201-203 ◽  
pp. 2144-2153
Author(s):  
Hong Yu Zhou ◽  
Xiao Jian Chen ◽  
Zi Hu Chen ◽  
Ming Wei Tong

In view of the insufficiency of central air-conditioning system that FCU, water pumps and air blower’s movement connot match with the actual operating load when varying duty, an energy saving control system for central air-conditioning based on terminal temperature measuring and frequency conversion control technology is proposed. This system can real-time measure different floors’ and nods’ temperatures in the building, and export orders to control the frequency of FCU, chilled water pump, cooling water pump and cooling tower air blower. To overcome big delay, large inertia and variable condition of control object, the dnamic fzzy nural network algorithm(DFNN), is applied into the control system. According to the practical running situations, the energy saving control system has advantages as high energy saving rate, high stability, good maintainability, which may be promoted the application vigorously.


2014 ◽  
Vol 986-987 ◽  
pp. 2113-2117
Author(s):  
Run Liu Wang ◽  
Yun Hui Yi

The utilization efficiency of energy is an important performance index of designing WSN routing protocol. This paper put forward an improved energy saving routing algorithm LPSOA based on LEACH, which improves the cluster head election method of LEACH algorithm. It firstly divides the entire network into multiple child regions by using the good convergence and global optimization ability of particle swarm algorithm, and then elects the cluster head by considering the residual energy of node in the child area. The experiment results show that compared with the classical routing protocol LEACH, the protocol can more effectively balance the network load and improve the utilization of energy, prolong the network lifetime.


2014 ◽  
Vol 687-691 ◽  
pp. 3976-3979 ◽  
Author(s):  
Ming Xin Liu ◽  
Xiao Meng Wang

Balancing energy load is a key problem in wireless sensor network (WSN) research. For balancing node energy consumption and prolong the network lifetime, this paper proposes an improved routing algorithm EBRA (Energy Balancing Routing Algorithm) based on energy heterogeneous WSN. To maximize the energy efficiency of network nodes, the EBRA weights the probability of cluster head election. According to the estimate value of the network average remaining energy and the residual energy of network nodes, we can calculate the new cluster head election threshold. The simulation results show that the utilization of energy balance of EBRA algorithm is improved 74%, 30% and 23%, compare with LEACH, SEP and DCHS, respectively.


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