Soegijardjo Soegijoko
Sekolah Teknik Elektro dan Informatika, Institut Teknologi Bandung, Bandung 40132, Indonesia

Published : 4 Documents
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Application of Mobile Telemedicine System to Support Public Health Service in Remote Areas

Journal of the Indonesian Medical Association Vol. 59 No. 5 May 2009
Publisher : Journal of the Indonesian Medical Association

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Abstract

This article discusses mobile telemedicine system, in order to support public health service in remote area which is held by Puskesmas. Mobile telemedicine system has been developed by Biomedical Engineering Research Group of STEI–ITB in collaboration with RSUDSyamsuddin SH Sukabumi. The system consist of a portable telemedicine unit as patient- bedside unit, and a physician- base unit. Communication and data transmission between both units can be carried out by GSM, CDMA, PSTN, VHF radio network, and/or Internet. Patient information consists of medical and demography data, a text, audio or picture. The system is able to be used for recording, reporting,  teleconsultation, telediagnosis, and teleeducation. Preliminary operational test was held at Sukabumi successfully. The result is very promising for applicating the device widely in Indonesia.Keywords: mobile telemedicine system, portable telemedicine unit, base unit health service.

Segmental Sinusoidal Model for Speech Signal Coding

Makara Journal of Technology Vol 10, No 2 (2006)
Publisher : Directorate of Research and Community Services, Universitas Indonesia

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Abstract

Periodic signal can be decomposed by sinusoidal component with Fourier series. With this characteristic, it can be modeled referring by sinusoidal form. By the sinusoidal model, signal can be quantized in order to encode the speech signal at the  lower rate. The recent sinusoidal method is implemented in speech coding. By using this method, a  block of the speech signal with 20 ms to 30 ms width is coded based on Fourier series coefficients. The new method proposed is quantization and reconstruction of speech signal by the segmental sinusoidal model. A segment is defined as a block of the speech signal from certain peak to consecutive peak. The length of the segment is variable, instead of the fixed block like the recent sinusoidal method. Coder consists of the encoder and the decoder. Encoder works to code speech signal at variable rate. Then coded signal will be transmitted to receiver. On the receiver, coded signal will be reconstructed, so that the reconstruction signal has the near quality compared with the original signal. The experimentalresults show that the average of segmental SNR is more than 20 dB.

Simple ML Detector for Multiple Antennas Communication System

Makara Journal of Technology Vol 13, No 2 (2009)
Publisher : Directorate of Research and Community Services, Universitas Indonesia

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Abstract

In order to support providing broadband wireless communication services against limited and expensive frequency bandwidth, we have to develop a bandwidth efficient system. Therefore, in this paper we propose a closed-loop MIMO (Multiple-Input-Multiple-Output) system using ML (Maximum Likelihood) detector to optimize capacity and to increase system performance. What is especially exciting about the benefits offered by MIMO is that a high capacity and performance can be attained without additional frequency-spectral resource. The grand scenario of this concept is the attained advantages of transformation matrices having capability to allocate transmitted signals power suit to the channel. Furthermore, product of these matrices forms parallel singular channels. Due to zero inter-channels correlation, thus we can design ML detector to increase the system performance. Finally, computer simulations validates that at 0 dB SNR our system can reach optimal capacity up to 1 bps/Hz and SER up to 0.2 higher than opened-loop MIMO.

e-Prescription: An e-Health System for Preventing Adverse Drug Events in Community Healthcare

Indonesian Journal of Clinical Pharmacy Vol 1, No 1 (2012)
Publisher : Indonesian Journal of Clinical Pharmacy

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Abstract

The paper describes development activities of an e-health system for community health center (Puskesmas) with integrated adverse drug events e-prescription module, consist of system design and development, human resource development, e-health system realization, laboratory and implementation test of e-health system. Some e-readiness evaluations were conducted, through a number of field visits and questionnaires. The results had been used in the e-health system design and development, installation of the internet access infrastructure, and implementation of the education and hands-on training for the medical and administrative staff of the healthcare units. After completing the e-health system design and development as well as system realization and laboratory tests stages, a series of field implementation and experiments have been successfully conducted at Puskesmas Babakansari in Bandung. A number of users feed back have been obtained and used for further improvements on both of the software and hardware modules. The e-health system with integrated e-prescription module has successfully developed and shown its expected functions in: patient registration, medical record, paperless prescription, producing the required reports and preventing possible adverse drug events.Key words: Adverse drug events, community health center, e-health, e-prescription  e-Prescription: Sistem e-Health untuk Pencegahan Adverese Drug Event di PuskesmasAbstrakArtikel ini mendeskripsikan pengembangan sistem e-health untuk puskesmas dengan modul e-prescription yang terintegrasi adverse drug event. Modul ini terdiri dari desain sistem dan pengembangan, pengembangan sumber daya manusia, realisasi sistem e-health, laboratorium dan tes implementasi sistem e-health. Beberapa evaluasi kesiapan penggunaan elektronik (e-readiness) dilakukan melalui kunjungan lapangan dan kuesioner. Hasil evaluasi digunakan dalam desain dan pengembangan sistem e-health, instalasi akses internet, implementasi pendidikan dan pelatihan bagi staf medis dan administrasi. Setelah sistem e-health selesai dan dikembangkan sesuai dengan realisasi dan tahapan tes laboratorium, sejumlah implementasi dan eksperimen telah sukses dilakukan di Puskesmas Babakansari di Bandung. Respon yang diperoleh digunakan untuk pengembangan modul lebih lanjut dari segi software dan hardware. Sistem e-health yang terintegrasi dengan modul telah sukses dikembangkan sesuai dengan fungsi yang diharapkan: registrasi pasien, medical record, resep tanpa kertas, pelaporan dan pencegahan kemungkinan adverse drug events.Kata kunci: Adverse drug events, pusat kesehatan masyarakat, e-health, e-prescription