Spatiotemporal Mining of BSS Data for Characterising Seasonal Urban Mobility Dynamics

Digital traces of individual mobility can be revealed from the origin-destination sensing systems of BSS (Bicycle Sharing System). This record enables wide analysis of human mobility traits in urban area including pattern, trend, and anomalies. This study investigates and compares trip history of BSS open data from two cities, London and New York, along a year period with respect to annual weather data as explanatory factors. This aims to get insights about seasonal urban mobility dynamics both temporally and spatially. Results show that, for both cities, there are differences as well as similarities of temporal correlation level between riding behaviour of BSS users and hour of the day, day of the week, season, and local weather. Practically, the most correlated factor can be further considered and used as predictive features. Meanwhile, the proposed spatial analysis shows the positive bikes imbalance occurs in the morning, mostly at inner stations because of inward flow, and vice versa. This spatial extent can be used for redistribution purpose, specifically in order to provide enough resources at the highly visited stations before peak time occurs

Design and Implementation of Solar-Powered Submersible Water Pump for Irrigation System in Subak Munduk Babakan Sangeh, Bali

This paper presents a comprehensive study on the design, implementation, and performance evaluation of a Solar-Powered Submersible Water Pump (SPSWP) system tailored for agricultural irrigation in Subak Munduk Babakan, Sangeh, Bali. With a focus on sustainable agriculture and water resource management, the system addresses the challenges of water scarcity during the dry season in the absence of natural irrigation sources. The SPSWP system, consisting of solar panels with a pump controller, a submersible pump, and a water tank, harnesses solar energy to power the pump, eliminating the need for extensive infrastructure. The research encompasses site survey and mapping, analysis and design, installation, benefits beyond irrigation, and technical measurements. The implementation shows promising results in overcoming water scarcity issues. The system's advantages include minimal maintenance, cost savings, and enhanced reliability. Additionally, the SPSWP system serves as an educational site for renewable energy study and awareness. Performance metrics are measured and discussed, including solar irradiance, voltage, current, solar panel temperature, and water discharge. The results indicate fluctuating solar energy availability, with voltage and current aligning with solar panel specifications. The system demonstrates a water discharge rate of 0.56 liters/second, showcasing promising outcomes in addressing water scarcity challenges for agricultural irrigation. Further research and monitoring are required to assess the long-term performance and sustainability of the system

Prototipe Sistem Parkir Berbasis Internet of Things dengan Live Dahsboard MQTT Server

Pertumbuhan penggunaan kendaraan bermotor umumnya tidak dibarengi dengan ketersediaan lahan parkir yang memadai, terutama di daerah perkotaan. Hal ini memicu masalah sulitnya mencari slot parkir pada jam-jam sibuk. Oleh karena itu pengaturan slot parkir terutama di gedung parkir perlu dilakukan. Langkah ini bisa dijalankan dengan penerapan teknologi Internet of Things (IoT). Penelitian ini mengusulkan penerapan IoT pada sistem parkir berbasis live dashboard dengan NodeMCU ESP8266 dan MQTT Server. Sistem parkir ini ditujukan untuk mengetahui jumlah kapasitas parkir yang available dari seluruh kapasitas parkir yang ada pada sebuah gedung parkir dan waktu pendudukan setiap slot parkir secara real-time. Kemudian, pengaturan kendaraan yang bisa masuk adalah berdasarkan kapasitas parkir yang masih tersedia tersebut. Sistem parkir ini terdiri dari dua komponen yang saling terhubung satu sama lain yaitu komponen pengendali sistem dan komponen manajemen parkir. Dalam hal ini MQTT Server Adafruit IO Platform digunakan untuk pengiriman data kontrol dan monitoring slot parkir yang tersedia. Dashboard MQTT Server ini juga dapat digunakan sebagai display untuk menampilkan status kapasitas parkir yang tersedia pada bagian depan gedung parkir dengan layar besar sehingga dapat dilihat oleh pengguna. Teknologi parkir ini diharapkan dapat membantu baik pengguna dalam mencari slot parkir maupun pengelola dalam mengatur usaha parkir mereka

Design of Controlling and Monitoring System for Room Temperature, Lighting, Power, and Energy Using Internet of Things

One goal of a smart home is to save the use of energy. Savings can be made with a control system where the things related to electricity usage will be controlled automatically. This research designs a control system of several parameters in a replica of a room with a monitoring application. Those parameters include room temperature, lighting, voltage, current, power, and energy using the Internet of Things. The room temperature control system uses the DHT11 sensor, the light intensity controller uses the LDR HL01 sensor module, while measuring current, voltage, power, and electrical energy at the load uses the PZEM-004T sensor. The NodeMCU ESP8266 is used as a control center that receives, processes, and sends data to the Blynk application using WiFi. The core of the system is based on the detection of the room temperature threshold and the state of light intensity based on light or dark. From these two conditions, the control center will instruct the relay to turn on or turn off the fan and lighting according to the predefined conditions. If the load is on then the voltage, current, power, and energy data will be acquired and displayed on the Blynk application in real-time

ANALISIS MONITORING DAN KONTROL NILAI KELEMBABAN TANAH DENGAN SISTEM SMART FARMING DAN SOIL METER

Kelembaban tanah merupakan air yang tersimpan di antara pori-pori tanah. Tingkat kelembaban tanah dapat mempengaruhi tanaman maupun hasil pertanian. Penelitian ini bertujuan melakukan analisis monitoring dan kontrol kelembaban tanah dengan sistem smart farming dan soil meter. Prototipe smart farming yang diusulkan adalah untuk monitoring dan kontrol melalui aplikasi mobile berbasis Blynk. Dalam hal ini, pada saat kelembaban tanah berada di bawah 40% maka alat akan mengirimkan sebuah notifikasi yang menginformasikan bahwa tanah dalam keadaan kering lalu pompa akan hidup untuk menyiram tanah tersebut. Hasil yang didapat adalah nilai selisih dari smart farming dengan soil meter dan nilai presentase kesalahan smart farming dengan soil meter untuk tiga jenis tanah berbeda yaitu mediteran, aluvial, dan humus. Penelitan ini menghasikan nilai rata-rata selisih smart farming dengan soil meter sebesar 3% dan nilai rata-rata presentase kesalahan sebesar 13% yang berarti nilai smart farming cukup mendekati nilai soil meter. Dengan prototipe sistem monitoring dan kontrol ini maka diketahui kapan sebaiknya tanaman disiram sehingga kualitas tumbuh kembang tanaman diharapkan menjadi optimal.

THE KNOWLEDGE AND ATTITUDES OF THE COMMUNITY IN SIBANGKAJA VILLAGE, BADUNG, REGARDING THE RABIES INCIDENT

Background: The challenges in overcoming the rabies epidemic include the public's lack of knowledge and attitudes regarding the control and first aid in dog bites. Sibangkaja is one of the villages in Badung Regency, which is an endemic area for rabies. Purpose: This study aimed to describe the knowledge, attitudes, and factors influencing the behavior of the residents of Sibangkaja Village, Badung, regarding rabies. Methods: This descriptive observational study was carried out using a cross-sectional design. The samples were 250 residents of Sibangkaja Village, taken by convenience sampling. Data were collected from February to March 2020 through interviews using the digital questionnaire. The variables were knowledge and community attitudes toward rabies vaccination in the village. Results: The results showed that the respondents' knowledge was good, but 34% did not know the symptoms of rabies. It was discovered that attitudes toward rabies prevention and management are significantly more in favor of vaccination than eliminating dogs. Furthermore, there is an association between knowledge and dog ownership on people's attitudes (p-value=0.01). Conclusion: Information and education about the symptoms of rabies is needed for residents to exercise caution and pay more attention to themselves and the surrounding dogs. Results: The results showed that the respondents' knowledge of rabies was good, but 34% of the people of Sibangkaja Village did not know the symptoms of rabies. Attitudes toward rabies prevention and management are largely in favor of vaccination than elimination of dogs. Conclusion: Information and education is needed regarding the symptoms of rabies so that residents are able to be careful and pay more attention to themselves and the dogs around them

Simulation and Implementation PID Controlling Buck Converter DC

Regulating the output voltage based on the desired set point is useful for many applications. However, getting the optimal value using fast computation with minimal error is still challenging. This paper aims to design, simulate, and implement a second-order Buck-Boost DC-DC converter circuit so that the voltage result according to the desired set point can be achieved. Initially, testing is conducted using Matlab Simulink. Then, Proteus is used to test the computation of the program on embedded systems in which the result is implemented in C. In low voltage power electronics applications, this approach has never been used to determine the output form. To determine the value of Kp, Ki, dan Kd, PID, Ziger Nichos (Guo, 2002). method is used. Meanwhile, tuning is done through Matlab. For simulation on Proteus, the output is tested by setting the setpoint values of 3.0, 2.5, and 1.7 volts. This aims to see the pattern of changes in the simulation. The simulation results with Proteus show that they have similar peak values but with different overshoot values. This is because the simulation must pass the reference voltage before it drops to the desired setpoint value. Proteus simulation can also help to prove embedded system programs are running correctly. On the other hand, the value of 1.7 volts is used as a setpoint in device implementation. This is due to the determination that the setpoint voltage in the implementation does not exceed the value of the source/power supply. The results show that for the rise time value of 378,770 ms, Overshoot and settling time are 11.798% and 0, respectively. This means the result produces an optimal value which is a return to the initial target. The optimal factor is assessed from the ability to minimize existing errors as well as having the shortest possible computational process

Development of Green Zone Energy Mapping for Community-based Low Carbon Emissions

The world is heading to digital industrial 4.0; this means everything must be connected. In another-word, energy consumption demand will elevate exponentially scale. Smart-green sources are being substantial to save the sustainability of energy and the environment. The development of green energy alternatives, with low-zero emission sources, becomes potential. However, the urban-city initiative's monitoring and active-management energy pattern are more effective than investing in a new renewable energy source. This paper proposes a new method to build a regulation-system that monitors excessive energy used from the radiance threshold of night-time satellite data. This research dataset consists of light-meter surveys, DMSP-OLS and NPP-VIIRS night-time satellite datasets, and other supporting data. The outcome is a class-criteria zone energy map with three criteria class, ambient, moderate, and excessive. The radiance threshold class determined from cross-analysis of night-time satellite data with light-meter surveys through regression analysis. The histogram of radiance distribution reveals the profiling of the class-criteria. Results show moderate-class becomes a key to attention and can be used to disclose any aspect of spatial-temporal dynamical of urban-cycle. By using this method provides an effective way of assessing energy uses with space-technology

Dog Ecology and Rabies Knowledge of Owners and Non-Owners in Sanur, A Sub-District of the Indonesian Island Province of Bali

This study gained an understanding of dog demographics, owner behaviour, and knowledge, attitudes and practices relating to rabies in three villages in Sanur, Bali, providing insights for an intervention to improve responsible dog ownership. A combination of a census of all dogs, street surveys of roaming dogs, and a Knowledge, Attitude and Practices (KAP) survey was used to study both dogs and people. A total of 6009 dogs were recorded, of which only 3.3% appeared to be unowned; unowned dogs had poorer welfare and were more likely to be wary of attempted approaches by people. The source of dogs, method of confinement used by owners, and whether dogs were sterilised differed between three breed types; purebred dogs, mixed breed, and Bali dogs (native breed). Three variables were found to have significant effects on the chances of not being vaccinated: age, dog type, and confinement. A mean of 3.81 roaming dogs per km of street surveyed was recorded along 28 sub-village routes. Responses to attitude statements showed that most people had a positive attitude towards dogs and vaccination and did not agree with culling. Knowledge of appropriate bite treatment and symptoms of rabies in dogs was good