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apa yang dimaksud dengan knock sensor

Improving Wireless Sensor Network Performance Using  BigData and Clustering Approach

Well-organized big data get together in the densely distributed sensor networks is, therefore, a challenging research area. One of the most effective solutions to address this challenge is to utilize the sink node’s mobility to facilitate the data gathering. While this technique can reduce energy consumption of the sensor nodes, the use of mobile sink presents additional Challenges such as determining the sink node’s trajectory and cluster formation prior to data collection. In this paper, we propose a new mobile sink routing and data gathering method through network clustering based on modified ExpectationMaximization (EM) technique. In addition, we derive an optimal number of clusters to minimize the energy consumption. The effectiveness of our proposal is verified through numerical results.

Solar power for Wireless Sensor Networks in  Environment Monitoring Applications-A Review

Routing in Wireless Sensor Networks has to take into account the limited battery resources of the nodes. Sensor nodes can also be powered by other energy sources like solar energy. This paper provides a review of Environment monitoring using Wireless Sensor Networks. The issues related to environment sensor networks is highlighted. The real time applications in environment monitoring is presented with emphasis on energy conservation. Furthermore in this paper we address the problem of scavenging energy using solar powered devices.

Review on Basic Clustering Techniques for  Heterogeneous Wireless Sensor Networks

Clustering technique is the basic technique used in the wireless sensor network to enhance the lifetime of a sensor network by mitigating energy consumption and provide efficiency, scalability, and security. Formerly sensor nodes are considered to be homogeneous in which each node has the same processing capacity, energy and functionality, but to prolong network lifetime researches has been evolved to infuse heterogeneity in wireless sensor network such as to provide different energy level to some nodes. In this paper, we present a survey on basic clustering techniques for Heterogeneous wireless sensor networks.

Murderer Algorithm Based Automatic Waking up  System

As the world runs fast, its our duty to run with the world compensating its speed. There is an urge to prove everyone unique. Hence time management play a worthless role in the daily work of a person. At morning it is a herculean task to wake up from the bed. “Let me sleep for some more time” is the first slogan of everyone every morning. But feeling guilty for not waking up in the morning is also encountered in several cases. In this paper we propose a novel “Murderer Algorithm” based automatic waking up system that helps to wake up every morning. The uniqueness of the system is to make the person in the bed to wakeup and get away from the bed. The device employs simple capacitive touch sensor to sense the presence of a person and also a brig

Nonlinear observers for attitude estimation in gyroless  spacecraft via Extended Kalman filter algor

This paper designs an observer to estimate the spacecraft’s angular velocity using only Euler angles attitude without gyroscope measurement. This work contributes as an alternative or backup system during unavailable gyroscope measurement due to faulty sensor or reduction of sensor hardware for cost reduction.In this work, the observer model for satellite attitude is derived in their nonlinear form, and the observability of the nonlinear system is investigated using Lie derivative. The performance of the designed observer is analyzed and verified using real flight data of Malaysian satellite by employing Extended Kalman Filter algorithm.

Modeling & Testing of Automatic Pneumatic Sliding  Door Using Sensors & Controllers

Automatic Pneumatic Door Using IR Sensors, serves to automate the mechanism of door operation using Pneumatic, Arduino microcontroller and infrared sensor technology. The methodology applied in the project is divided into three parts, firstly designing and fabrication of the door with the calculated dimensions, secondly, developing a program on the Arduino for door operation and thirdly, interfacing the different components to work together in a cohesive manner.

Desain Akustik Terbaik Recording Studio MD Music

MD Entertainment telah membangun kantor baru di Jl. Setiabudi 1, Kuningan, Jakarta Selatan. Untuk memenuhi kapasitas produksi, perusahaan ini membangun recording studio baru di gedung MD Place yang terletak di kawasan Kuningan, Jakarta Selatan. Untuk membangun recording studio ini, MD Music mempercayakannya kepada kami (VIC) mulai dari konsep desain hingga proses pengerjaannya.

Hotel dengan Sertifikat LEED Bisa Meningkatkan Revenue

Di Amerika Serikat dan sejumlah negara lain di dunia, sertifikat LEED merupakan standar yang diakui untuk mengukur sustainable design atau energi terbarukan pada sebuah hotel. Mendapatkan sertifikat LEED adalah cara terbaik bagi Anda untuk menunjukkan bahwa proyek bangunan hotel Anda benar-benar "hijau" atau termasuk bangunan dengan energi terbarukan.

Bioclimatic Architecture sebagai Strategi Bangunan Ramah Lingkungan

Beberapa karya terbaik--bangunan ramah lingkungan--tercipta dari mereka (arsitek) yang berani keluar dari ide-ide atau kelaziman arsitektur, tetapi hasilnya malah tergolong ramah lingkungan. Itulah bioclimatic architecture, merancang bangunan yang bersinergi dengan kondisi iklim lingkungan setempat, termasuk memperhatikan segi iklim dan budayanya.

VOKUZcom Home Theater Design, Build, and Calibration (Part II)

Performa ruangan sangat ditentukan oleh kualitas pelaksanaan pekerjaan lapangan yang baik. Menggunakan jasa home theater design, build, and calibration yang profesional memang akan menambah biaya dibandingkan Anda membuat sendiri. Akan tetapi, dengan adanya konsultan akustik ini, tentu akan mengurangi risiko kesalahan dalam merancang dan membangun sebuah home theater yang baik.

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