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All Journal snimed Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Proceeding of the Electrical Engineering Computer Science and Informatics Communications in Science and Technology Jurnal Teknologi Informasi dan Terapan (J-TIT) Buletin Ilmiah Sarjana Teknik Elektro Jurnal Instrumentasi
Tito Yuwono, Tito
Universitas Islam Indonesia
Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology

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Pembacaan Waktu sebagai ekstraksi EKG pada Diagnosis Penyakit Jantung Franz, Annafi’; Muhimmah, Izzati; Yuwono, Tito; Marfianti, Erlina
Seminar Nasional Informatika Medis (SNIMed) 2017
Publisher : Magister Teknik Informatika, Universitas Islam Indonesia

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Abstract

Secara global penyakit jantung merupakan penyakit tidak menular penyebab kematian terbesar. Salah satu cara mengenali penyakit jantung adalah dengan mendiagnosis berdasarkan hasil dari elektrokardiogram (EKG) yang kemudian dianalisis oleh ahlinya. EKG merupakan gambaran dari aktivitas listrik jantung yang terdiri dari beberapa komponen. Pada penelitian ini diusulkan algoritma pembacaan waktu pada komponen EKG yang berupa durasi interval dan segmen waktu untuk mendapatkan nilainya. Nilai interval dan segmen yang didapat kemudian di proses oleh mesin inferensi Modified K-Nearest Neighbor (MKNN) untuk mendapatkan hasil diagnosis penyakit jantung.  Nilai akurasi yang didapat dari menggunakan algoritma pembacaan waktu sebagai ekstraksinya dan MKNN sebagai mesin inferensinya adalah 90.22%.
Design of The Digital Sphygmomanometer Using Pressure Sensor Yuwono, Tito; Irawan, Erwin Yan; Kusriyanto, Medilla; Isti’anah, Siti
Instrumentasi Vol 38, No 1 (2014)
Publisher : LIPI Press, Anggota IKAPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/instrumentasi.v38i1.47

Abstract

Blood pressure measurement is a very important activity. Blood pressure determines the strength of blood flow circulating in the body. If blood pressure is too high or too low, it will cause vital impact and even lead to death. The measuring of blood pressure commonly uses mercury sphygmomanometer. Disadvantages of this instrumention are users should have good hearing and sight, depending on the sensitivity of the stethoscope, and not user-friendly. In this paper, the writers will discuss the design and development of digital blood pressure instrumentation that is user-friendly. Some of the components used in this instrumentation are MPX5050GP pressure sensor, comparator, voice circuit, and LCD circuit. The result of blood pressure measurement is displayed on the LCD and sound. With these features, user can use this instrumentation easily. The performance of this intrument was tested by comparing it with mercury sphygmomanometer. The accuracy of this instumentation is 99.33%. The advantages of this instrumentation are it doesn’t depend on the sensitivity of stethoscope and the level of blood pressure can be viewed and heard directly on the LCD and Speaker. Keywords: Blood pressure; Digital sphygmomanometer; Pressure sensor; user-friendly.
Comparison of Smart Antenna Technique Based on Adaptive Antenna Systems and Switched Beam Systems Tito Yuwono; Mahamod Ismail; Zuraidah Zainudin
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2004
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

The continuous increment of mobile communication subscribers, require a highercapacity and spectrum efficiency of the cellular system especially in an urban area where thetraffic density is high. In order to accommodate the increasing number of subscribers, smartantenna technology is used to improve system’s performance, which could increase thenumber of call and data transmission as well as simplifying the networking management. Thebasic principle of a smart antenna is to control and reduce the effect of interference toprovide the user with the highest quality of uplink and downlink signal. This can be achievedby using narrow beams with signal processing capability at the base sites and to optimize itsradiation pattern, which automatically updated according to MS movement or as signalsconditions change. In this study, two types of smart antenna were considered, which are theswitched beam systems and adaptive antenna systems. The significant difference betweenthese two systems is from the beamforming point of view. The key part of this study is todevelop a simulator for adaptive antenna systems (AAS) and switched beam systems (SBS)based on GSM 900 in order to determine the factors that could affect network’s quality andcapacity. Simulation results of different techniques are compared and the performanceevaluations of C/I are discussed. Results show that the AAS gives a better performancecompared to SBS, with average improvement of C/I around 5 to 10 dB.Keywords: smart antenna, adaptive, switched beam,C/I
Kendali Daya Dinamis pada Pemancar (Base Station) Sistem Komunikasi Generasi Ketiga WCDMA Tito Yuwono; Mahamod Ismail
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2004
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

WCDMA telah dipilih sebagai air interface untuk sistem UMTS. Air interface inibekerja berdasarkan pada sistem akses jamak CDMA. Kendali daya dinamis diperlukanuntuk mendapatkan kualitas yang baik dengan daya yang minimum, sehingga kapasitassistem dapat ditingkatkan. Dari hasil simulasi didapatkan SINR 3,6001 dengan daya padapemancar 0.0825 watt, 0.0412 watt, dan 0,0466 watt.Kata kunci: kendali daya, daya, WCDMA, SINR.
PROTOTYPE SMART INSTRUMENT UNTUK KLASIFIKASI PENYAKIT HIPERTENSI BERDASARKAN JNC-7 Dudi Irawan; Izzati Muhimmah; Tito Yuwono
Jurnal Teknologi Informasi dan Terapan Vol 4 No 2 (2017)
Publisher : Jurusan Teknologi Informasi Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jtit.v4i2.68

Abstract

High blood disease or famous to known as hypertension almost 95% the cause is very difficult to know. One way to know the condition of our health is by checking routine to the nearest clinic or hospital. Hypertension is one of the risk factors for dangerous diseases, such as stroke, heart attack, and kidney failure. Hypertension can cause high morbidity (pain) and mortality (death), hypertension is often called silent killer disease. People with Hypertension rarely show early symptoms, and their recognition is usually through screening, or when seeking medical treatment for unrelated health problems. The cause factors of hypertension include weight and height, body fat, and alcohol levels inside of body. To know the condition of body to hypertension need a monitoring system and use tool tensimeter. In this research has been made the means of detecting factor symptoms of hypertension. After the measurements are done by each sensor then the data is processed by Arduino Microcontroller to be processed to computer via serial port (USB). On the computer data that has been sent will be processed using decision tables with databases obtained from experts, the resultin a decision will give classification of hypertension and non-pharmacological management.
Decision Support System for Heart Disease Diagnosing Using K-NN Algorithm Tito Yuwono; Noor Akhmad Setiawan; Adi Nugroho; Anugrah Galang Persada; Ipin Prasojo; Sri Kusuma Dewi; Ridho Rahmadi
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 2: EECSI 2015
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (977.661 KB) | DOI: 10.11591/eecsi.v2.776

Abstract

Heart disease is a notoriously dangerous disease whichpossibly causing the death. An electrocardiogram (ECG) is used fora diagnosis of the disease. It is often, however, a fault diagnosis by adoctor misleads to inappropriate treatment, which increases a riskof death. This present work implements k-nearest neighbor (K-NN)on ECG data to get a better interpretation which expected to help adecision making in the diagnosis. For experiment, we use an ECGdata from MIT BIH and zoom in on classification of three classes;normal, myocardial infarction and others. We use a single decisionthreshold to evaluate the validity of the experiment. The resultshows an accuracy up to 87% with a value of K = 4
High Accuracy Dual Probe Station for Near Field Scanning Tito Yuwono; Mohd Hafiz Baharuddin
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 4 (2023): December
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i4.9132

Abstract

Electromagnetic (EM) emissions are a major issue for electronic products. Besides electronic products being able to work according to their function, they must also comply with EMC standards to avoid producing excessive EM emissions. One technique for measuring EM emissions is near field measurements. This measurement technique can be used to determine the faulty components which contribute to the failure of complying to the EMC standards. A near field measurement system consists of near field probes, digital oscilloscope, and a probe station which can control the movement of the near field probe during measurement process. In this paper, the design and development of a dual probe near field measurement system or station with high accuracy will be discussed. From instrument testing, it can be concluded that the probe station can cover ample scanning area with movement accuracy up to 0.05 mm and it is able to work well according to the test scenario. The designed probe station is verified by measurement and highly recommended to be used for near field measurements.
A review of measurement of electromagnetic emission in electronic product: Techniques and challenges Yuwono, Tito; Baharuddin, Mohd Hafiz; Misran, Norbahiah; Ismail, Mahamod; Mansor, Mohd Fais
Communications in Science and Technology Vol 7 No 1 (2022)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.7.1.2022.727

Abstract

Nowadays, electronic products are being used extensively in many fields and applications. The dense population of electronic devices in human life has become a challenge for microwave engineers to ensure that their products can meet the Electromagnetic Compatibility (EMC) standards. Complex electronic products with smaller sizes and denser components will be a challenge for compliance with EMC standards. In addition, the occurrence of non-stationary emission at certain operating modes becomes a challenge for analysis. Error in analyzing EM emissions will make the products unable to meet the requirements of EMC standards; hence, they will be prohibited to be marketed. Currently, there are two methods of emission analysis, i.e. by measurement and modeling or computation. There are some problems, however, in the analysis of EM emissions regarding the area of test, complexity, DUT positioning error, installation cost, and time consumption. In this paper, the analysis techniques for EM emissions including Open Area Test Site (OATS), Anechoic chamber, Transverse Electromagnetics TEM Cell, Compact Antenna Test Range (CATR) and near field scanning are reviewed comprehensively. This survey covered EMC standards, principles of EM emission measurement techniques, advantages and disadvantages of EM emission measurement techniques, studies and applications of each technique, recommendations for which technique to be used, and challenges for future research in EM emission measurement. The final section of this paper discusses the challenges for near-field measurements related to the non-stationary emissions phenomenon. This papers also presents the challenges of how to detect and characterize them.
On the characterization of EM emission of electronic products: Case study for different program modes Yuwono, Tito; Baharuddin, Mohd Hafiz; Zhivomirov, Hristo; Wahyuni, Elyza Gustri
Communications in Science and Technology Vol 9 No 1 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.1.2024.1289

Abstract

The characterization of the EM emissions for electronic products is crucial to ensure that the emissions have met the requirements of the EMC standards. For this, a more comprehensive testing is required to get more meaningful results. While, the emergence of non-stationary emissions is a challenge to obtain valid analysis results. So far, non-stationary EM emissions is not considered and treated properly in the emission analysis. This paper presents a new method for the analysis of EM emissions from electronic devices as a case study by testing three different program modes (scenarios) of Intel Galileo board. These program modes were designed to vary processing intensity in its memory and processor. A comparison was also made between the actual situation (the presence of non-stationary signals) and the hypothetical situation with the assumption that all emissions were stationary. As a result, a significant difference was observed when the analysis considered the real scenario of a non-stationary emission. The ratio between the average autocorrelation using the proposed algorithm and the average correlation by ignoring the non-stationarity of the emission signal was 113.6 times. The study concludes that different program modes produce the different characteristics of EM emissions, making some of them non-stationary. Hence, we strongly suggest the consideration of the non-stationarity of the EM emissions in characterizing complex electronic devices.
Co-Authors Adi Nugroho Anugrah Galang Persada Anugrah Galang Persada, Anugrah Galang Baharuddin, Mohd Hafiz Desyandri Desyandri Dewi, Sri Kusuma Elyza Gustri Wahyuni Erlina Marfianti, Erlina Franz, Annafi’ Ipin Prasojo Ipin Prasojo, Ipin Irawan, Dudi Irawan, Erwin Yan Irawan, Erwin Yan Isti’anah, Siti Isti’anah, Siti Izzati Muhimmah Kusriyanto, Medilla Kusriyanto, Medilla Mahamod Ismail Mahamod Ismail Mansor, Mohd Fais Mohd Hafiz Baharuddin Noor Akhmad Setiawan Norbahiah Misran Nugroho, Adi Persada, Anugrah Galang Prasojo, Ipin Rahmadi, Ridho Ridho Rahmadi Ridho Rahmadi Sri Kusuma Dewi Sri Kusuma Dewi, Sri Kusuma Zhivomirov, Hristo Zuraidah Zainudin