Article Per Year (5 Year)
p-Index From 2020 - 2025
2.832
P-Index
This Author published in this journals
All Journal International Journal of Electrical and Computer Engineering Bulletin of Electrical Engineering and Informatics ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JITTER (Jurnal Ilmiah Teknologi Informasi Terapan) MIND (Multimedia Artificial Intelligent Networking Database) Journal REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Society: Jurnal Pengabdian Masyarakat Nautical: Jurnal Ilmiah Multidisiplin Indonesia
KRISTIANA, LISA
Institut Teknologi Nasional Bandung
Religion Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences

Published : 21 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 21 Documents
Search

 1   2   3 
Deep Learning RetinaNet based Car Detection for Smart Transportation Network DEWI, IRMA AMELIA; KRISTIANA, LISA; DARLIS, ARSYAD RAMADHAN; DWIPUTRA, REZA FADILAH
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 7, No 3 (2019): ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v7i3.570

Abstract

ABSTRAKDeteksi objek yang merupakan salah satu bagian utama dari sistem Smart Transportasion Network (STN) diajukan pada penelitian ini. Penelitian ini menggunakan salah satu model STN yaitu Infrastructure-to-Vehicle (I2V), dimana sistem ini bekerja dengan mendeteksi kendaraan mobil menggunakan model arsitektur RetinaNet dengan backbone Resnet101 dan FPN (Feature Pyramid Network), kemudian hasil deteksi mentrigger VLC transmitter yang terpasang di lampu penerangan jalan mengirimkan sinyal informasi menuju VLC receiver yang dipasang di mobil. Pada tahap proses training, jumlah dataset mobil yang digunakan adalah sekitar 1600 image dan 400 validation image serta pengulangan proses sebanyak 100 epoch. Berdasarkan 50 kali pengujian pada image test, diperoleh nilai precision mencapai 86%, nilai recall mencapai 85% dan f1-score mencapai 84%.Kata kunci: Object detection, RetinaNet, Resnet101, STN, VLC, I2V ABSTRACTObject detection is one of the main part in Smart Transportation Network (STN) system proposed in this research. This research used one of the STN models, namely Infrastructure-to-Vehicle (I2V), a system works by detecting car using RetinaNet architecture model with ResNet 101 and FPN (Feature Pyramid Network) as backbone, then the detection result triggers VLC transmitter set up on the street lighting to transmit information signal to the VLC receiver which set up in the car. At the training process stage, the number of car datasets is approximately 1600 images, 400 validation images and repetition of processes about 100 epochs. Based on the 50 times testing process on a image test, it is obtained 86% of a precision value, by reaching 85% of recall value, and 84% of f1-score. Keywords: Object detection, RetinaNet, Resnet101, STN, VLC, I2V
AN ANALYSIS OF DISTANCE EXTENSION METHOD IN VISIBLE LIGHT COMMUNICATION (VLC) PERFORMANCE KRISTIANA, LISA; DARLIS, ARSYAD RAMADHAN; DEWI, IRMA AMELIA; LIDYAWATI, LITA; ARCHANDHIKA, HEGAR REFALDY
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 8, No 1 (2020): ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v8i1.218

Abstract

ABSTRAK A Visible Light Communication (VLC) adalah teknologi yang menawarkan konsep inovatif karena VLC menerapkan cahaya tampak untuk mentransmisikan informasi dari satu titik ke titik lain. Tantangan utama dalam penerapan VLC adalah pelemahan sinyal cahaya tampak karena faktor jarak dari titik sumber ke titik tujuan. Penelitian ini berfokus pada metode untuk merancang dan menerapkan pemancar dan penerima VLC pada media udara. Dengan membandingkan berbagai macam tipe LED, pengukuran yang didapatkan menunjukkan bahwa pemancar dan penerima VLC dapat ditingkatkan kemampuannya sehingga mencapat jarak maksimum 8.5 meter dengan menggunakan LED HPL. Kata kunci: Visible Light Communication, VLC Transceiver, Distance Extension Method, Light Emitting Diodes (LEDs). ABSTRACT A Visible Light Communication (VLC) offers the innovative concept in telecommunication since it implements visible lights to transmit information from one point to other points. The main challenge in VLC is the attenuation due to the distance from source to destination. This research focuses on extension method to design and implement the VLC transceiver in an air medium. By comparing the real measurement of several types of LEDs, the distance of VLC transceiver can be extended up to 8.5 meters by applying HPL LED. Keywords: Visible Light Communication, VLC Transceiver, Distance Extension Method, Light Emitting Diodes (LEDs).
Remotely Garden Irrigation for Residential Area Based on Internet of Things (IoT) Lidyawati, Lita; Kristiana, Lisa; Darlis, Arsyad Ramadhan; Jambola, Lucia; Susana, Ratna
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 1, No 1 (2020): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v1i1.35-44

Abstract

Activities such as planting and gardening become one of prominent hobbies. An issue of having such well grown plants is the impractical and unachieavable task to monitor 24 hours a day, thus we need a smart gardening system that can monitor the garden on demand. One of the problems in residential gardening systems is how to water the plants while the owner is not at home. Some of people have an adequate knowledge of using IoT to make their life easier. This paper proposes a simple automatic gardening system in watering several plants as programmed. In addition, this system allows human’s manual intervention either locally or remotely via Internet, to control a water pump. To build this smart gardening system, we use Xiaomi home application from Google Play. In this application, we can set the program to water the plants daily with definite time periodic independently.
Security and Watering System Counseling Based on Internet of Things (IoT) in Pondok Hijau Indah Residential Area Lidyawati, Lita; Jambola, Lucia; Darlis, Arsyad Ramadhan; Kristiana, Lisa; Susana, Ratna
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 1, No 2 (2020): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v1i2.65-74

Abstract

Nowadays, security and gardening systems in densely populated residential areas are generally done manually. The security system in housing sometimes places security posts at street corners that are some distance from citizen’s homes thus they cannot be monitored at all times. Whereas other problem of watering system in citizen’s homes, someone has to water the plants one by one that it is not efficient in  energy, time and water availability thus that it can reduce the quality of the plants. Internet of Things (IoT) is a concept and method for remote control, monitoring, and various tasks. IoT is connected to a network that it can be accessed anywhere which can make things easier. IoT can be used to solve various problems. One of them is security issues and gardening activities. By using smart home technology, the security system is carried out by placing CCTV (Closed Circuit Television) which can be accessed by the home owner, anytime and anywhere the home owner is located. On the other hand, gardening is one of the most popular hobbies. In this field, IoT can be used to monitor and regulate various things to support gardening activities. In this community service activity, we are proposed a simple automatic gardening system for watering some plants programmatically in Pondok Hijau Indah residence. The system also allows manual human intervention either locally or remotely via the internet to control CCTV and water pumps. To build this smart Home system we will use the Xiaomi Home application from Google Play. In this application, we can set a program to control CCTV and water the plants every day at a certain time periodically, in this case, we set every 7 hours to watering the plants. 
The feasibility of obstacle awareness forwarding scheme in a visible light communication vehicular network Lisa Kristiana; Arsyad Ramadhan Darlis; Irma Amelia Dewi
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 6: December 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v10i6.pp6453-6460

Abstract

A vehicular-to-vehicular (V2V) communication is a part of a vehicular ad-hoc network (VANET) that emerges recently due to the heavy traffic environment. V2V is a frequently changing network since it implements vehicles as mobile nodes. The challenges in implementing V2V are the relatively short duration of possible communication and the uneven city environment caused by high rise buildings or other objects that distract the signal transmission. The limited transmitting duration between vehicles requires efficient coordination and communication. This work focuses on the utility of visible light communication in vehicular network (VLC-VN) in data transmitting and the obstacle awareness in the forwarding scheme based on our knowledge in previous researches. The result of evaluating the feasibility of VLC-VN forwarding in a freeway environment the transmission delay is lower than 1 second in 500 byte data transmission, however it reaches to only about 4% in throughput as a drawback.
Digital watermarking image using three-level discrete wavelet transform under attacking noise Lita Lidyawati; Arsyad Ramadhan Darlis; Lucia Jambola; Lisa Kristiana; Rea Ramada Jayandanu
Bulletin of Electrical Engineering and Informatics Vol 11, No 1: February 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v11i1.3565

Abstract

The authentication, identification, and copyright protection can be obtained by constructing the digital image watermarking technique. Watermark robustness and imperceptibility account for the capability of the hidden watermark to survive the manipulation. The proposed paper is a robust algorithm for digital image watermarking with 3-level discrete wavelet transform (DWT) with some attacks method. The 3-level DWT method was used constants α=0.01 and 0.03 as a function of how depth the watermark inserts to the host image in the insertion and extraction process. The algorithm was evaluated using 8 bits per pixel (bpp) grayscale, 1024x1024 pixels for the host image, and 256x256 pixels for the watermark image. The method is also implemented some experimental with attacks such as gaussian, salt and pepper, blurring, and compression. The algorithm is relatively acceptable of good quality, achieves low-value mean squared error (MSE), high peak signals to noise ratio (PSNR), and structural similarity index metric (SSIM) value approach to 1. It is found that the highest image quality measurements by using α=0.03 with the attacking method of salt and pepper yield MSE=0.01, PSNR=45.6 dB and SSIM=0.95, respectively. 
PENDEKATAN METODE TRIGONOMETRI PADA APLIKASI PEMANTAUAN PROGRES PEMBANGUNAN JALAN BERBASIS ANDROID Dixy Abdul Rochman S; Lisa Kristiana; Marisa Premitasari
Jurnal Ilmiah Teknologi Infomasi Terapan Vol. 6 No. 2 (2020)
Publisher : Universitas Widyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (526.355 KB) | DOI: 10.33197/jitter.vol6.iss2.2020.355

Abstract

The construction industry such as road construction deals with many problems and uncertainty in the implementation process. In addition, time, cost and quality of work issues are also the focus of project implementation in the field of research services, It starts with the data planning and location coordinates which are aggregated from the project's site by the officer. Those data planning and location coordinates are pin pointed and stored in databases. each point consists of Longitude, Latitude, Road type, and road width. Using the Android application for monitoring, the officer conducts the supervision as required for the determined point in order to update the road construction status, the trigonometric process will directly display the right and left lines for the direction of the photo capturing. however, a long road capturing, the system will take approximately 30 seconds so that GPS can read coordinates correctly
Security System Based on IoT in Karyawangi Parongpong Village: Design Phase Lita Lidyawati; Dani Rusirawan; Lisa Kristiana; Narisha Kalya Mahsa
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 2, No 1 (2021): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v2i1.33-40

Abstract

Security is always an issue both in individuals and communal attentions. Any forms of threats and crimes that occur in the village area of Karyawangi Parongpong, such as motor vehicle theft, violence, drug abuse, gambling, and others are caused by a lack of supervision from local authorities. The limitation of surveillance distance is one of the problems. Thus, an effective and appropriate security system in a place is indispensable. In this paper, the design of the security system using IoT modules and ESP32 Camera, will be elaborated for karyawangi Parongpong's village. The system secures a village environment by detecting an intruder on the road, triggering Passive Infra Red (PIR) sensor, capturing all activities with ESP32 camera, and then sending data to a smart mobile phone through with Telegram application. These service activities were aimed at the improvement of security systems and increase knowledge of technology advances for rural communities in the Karyawangi Village environment, especially in security systems based on IoT.
Remotely Garden Irrigation for Residential Area Based on Internet of Things (IoT) Lita Lidyawati; Lisa Kristiana; Arsyad Ramadhan Darlis; Lucia Jambola; Ratna Susana
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 1, No 1 (2020): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v1i1.35-44

Abstract

Activities such as planting and gardening become one of prominent hobbies. An issue of having such well grown plants is the impractical and unachieavable task to monitor 24 hours a day, thus we need a smart gardening system that can monitor the garden on demand. One of the problems in residential gardening systems is how to water the plants while the owner is not at home. Some of people have an adequate knowledge of using IoT to make their life easier. This paper proposes a simple automatic gardening system in watering several plants as programmed. In addition, this system allows human’s manual intervention either locally or remotely via Internet, to control a water pump. To build this smart gardening system, we use Xiaomi home application from Google Play. In this application, we can set the program to water the plants daily with definite time periodic independently.
Security and Watering System Counseling Based on Internet of Things (IoT) in Pondok Hijau Indah Residential Area Lita Lidyawati; Lucia Jambola; Arsyad Ramadhan Darlis; Lisa Kristiana; Ratna Susana
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 1, No 2 (2020): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v1i2.65-74

Abstract

Nowadays, security and gardening systems in densely populated residential areas are generally done manually. The security system in housing sometimes places security posts at street corners that are some distance from citizen’s homes thus they cannot be monitored at all times. Whereas other problem of watering system in citizen’s homes, someone has to water the plants one by one that it is not efficient in  energy, time and water availability thus that it can reduce the quality of the plants. Internet of Things (IoT) is a concept and method for remote control, monitoring, and various tasks. IoT is connected to a network that it can be accessed anywhere which can make things easier. IoT can be used to solve various problems. One of them is security issues and gardening activities. By using smart home technology, the security system is carried out by placing CCTV (Closed Circuit Television) which can be accessed by the home owner, anytime and anywhere the home owner is located. On the other hand, gardening is one of the most popular hobbies. In this field, IoT can be used to monitor and regulate various things to support gardening activities. In this community service activity, we are proposed a simple automatic gardening system for watering some plants programmatically in Pondok Hijau Indah residence. The system also allows manual human intervention either locally or remotely via the internet to control CCTV and water pumps. To build this smart Home system we will use the Xiaomi Home application from Google Play. In this application, we can set a program to control CCTV and water the plants every day at a certain time periodically, in this case, we set every 7 hours to watering the plants. 
Co-Authors ADITYA, HAFIDZ DAYU Adli, Muhammad Arkan AFRIZAL MAULANA MUHAMMAD Anindia, Hana Nathania ARCHANDHIKA, HEGAR REFALDY Arsyad Ramadhan Darlis ARSYAD RAMADHAN DARLIS Barmawi, Mira Musrini Dafy, Muhammad Zufar DANI RUSIRAWAN DEWI, IRMA AMELIA Dixy Abdul Rochman S DWIPUTRA, REZA FADILAH FASYA, SHAFIRA KURNIA Irma Amelia Dewi JANUAR, MUKTIADI AKHMAD LITA LIDYAWATI LUCIA JAMBOLA MANURUNG, AURALIUS Marisa Premitasari, Marisa MAULANA, KEINDRA BAGAS Miftahuddin, Yusup MIYANTO, DIAN MUHAMMAD RAFLY Narisha Kalya Mahsa Nurrahmayanti, Fadhilah RACHMA APRILIYANI RATNA SUSANA Rauf, Muhammad Rea Ramada Jayandanu Setiyawati, Setiyawati Sugiharto, Ariq Bagus