Indonesia Conference Directory

Corresponding Author
Irfan Mujahidin

Institutions
Electrical Engineering
University of Merdeka Malang

Abstract
The wireless communication network system requires complex configuration component of the electromagnetic feeding network circuit, and high-cost material, especially for the electromagnetic component on a high frequency.5.8 GHz with Double 90-degree phase difference output using butler matrix feeding Network for the wireless communication network system. it is the novel shaped and configuration microstrip electromagnetic circuit with the free frequency, no complex configuration, and low-cost material at the 5.8 GHz. This system is package consists of a 5.8 GHz Microstrip antenna with the array rectangular microstrip antenna, and Butler matrix to generate double 90-degree phase difference with quad input and quad output. The Antenna has a single band and narrow bandwidth with the four-port and have a single working frequency that is 5.58 GHz under -10dB S parameter and using via hole for a transmission line to network feeding system, the radiation pattern is directional and the gain level is 6.83 dB and 50 ohms feeding impedance. The 90-degree hybrid coupler has S11 of -26.19 dB, S21 of 31.65 dB, S51 of -26.18 dB, and S61 of -32.52 dB that all is specification has a good working. And overall size of the proposed this configuration is 80 mm times 65 mm with Phenolic White Paper with a dielectric constant is 4.4 that has 50ohm.

Keywords
Microstrip antenna, Butler matrix, Array rectangular microstrip antenna.

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/GA3Zd69K4FQz

Corresponding Author
Mohammad Yanuar Hariyawan

Institutions
Politeknik Caltex Riau

Abstract
Light emitting diode (LED) lamps are become popular in a wide range of applications, due to low power, high efficiency, and low maintenance. To achieve high efficiency in energy transfer in the LED driver, a switched-mode power supply (SMPS) topology is applied. SMPS operates at a constant frequency; it generates significant emission in some of the frequencies through conducted and radiated mechanisms. Several solutions are proposed to mitigate the EMI (electromagnetic interference), such as converter design, component selection, EMI filtering, and spread spectrum techniques. Spread spectrum is a cheap and efficient solution in the conducted emission mitigation. This research performs the conducted emission mitigation is done by modifying the switching on the LED Driver using chaotic signals. The Lorenz equation is selected to produce chaotic signals. The effect of EMI caused by the chaotic signal is analyzed toward the performance of the system, compared with performance when it is modulated by periodic signals. Lorenzs injection signals have reduced distribution over a larger frequency range compared to other injection signals. The average EMI reduction produced by Lorenz signal is the highest compared with other modulated signals of 10.63 dB.

Keywords
SMPS, EMI, conducted emission, chaotic, lorenz

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/cY6nW7GNqjvg

Corresponding Author
Mochammad Firdaus Ali

Institutions
Electrical Engineering Departement, State Polytechnic of Malang. Jl. Soekarno-Hatta No. 9, Malang 65141, Indonesia.

Abstract
One of the problem corresponds to the small dimension of an antenna is the bandwidth. In order to overcome the problem from small linear and multiple antenna array systems, the investigation of the antenna elements is needed. Design of planar antennas is to achieve an antenna that is able to match various demands in applications where size, cost, performance, and aerodynamic profiles are very important considerations, a low-profile antenna such as a small. The antenna performance on scattering parameters S11, gain, radiation pattern and impedance input are investigated at obtaining wideband antennas by adjusting antenna design parameters. The Substrate thickness needs to be adjusted to 0.813 mm and the element length from 2 mm to 0.05 mm. The calculation of return loss, gain, and the radiation pattern is presented using MoM-based WIPL-D. The antenna element when L2 is 2mm in the frequency range 4 GHz – 8 GHz which reaches a bandwidth of 23.4% and the resonance frequency less than the frequency of 5 GHz. When L2 changed to 0.05 the resonance frequency becomes 5 GHz and the bandwidth increased to 31.5%. Therefore, decreasing antenna element length(L2) affect the resonance frequency to the higher frequency and increase the bandwidth.

Keywords
Planar Antenna, Low Profile Antenna, WIPL-D, Array

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/whHckXe8yzaC

Corresponding Author
Martono Dwi Atmadja

Institutions
1)2)3)4) Department Electrical Engineering, State Polytechnic of Malang.

Abstract
The use of PABX between buildings existed in State Polytechnic of Malang consists of 3 types, which are produced by the same manufacturer. However, the three types of PABX have different characteristics and specifications from one another. Therefore, its merging is done by numbering method which must use prefix to be able to contact users in other PABX. Every PABX is always provided with an interface that aims to combine with different systems, so that adjustments can be made. To overcome this problem, by software-based central installation, namely IPPBX, so that if the change (migration process) occurs, a device called the internet telephone gateway can be installed. This device with one IP address can connect more than one analog telephone number. So far the product has 32 ports. This research uses ITG with 16 ports due to the connection characteristics of the same connector as the conventional PABX. This condition will be easily implemented and does not change the existing network system in State Polytechnic of Malang. The results of the design based on the number of connected services required a number of 32 devices ITG 16 ports plus 4 ports connection to the public services telephone network (PSTN)

Keywords
prefix, interface, analog telephone

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/fkFACZRTQH6N

Corresponding Author
Hudiono Hudiono

Institutions
State Polytechnic Of Malang

Abstract
Local water supply company in Indonesia still uses analog water meter, hence the data recording of customer- water usage was carried out by officers manually. It is certainly an inefficient and risky method that could produce errors. Moreover, not all water meter data could be recorded at the time officers come to the location, for example in vacant houses, that could causing customers suffer the consequences such as fine for late payment. In this study, we proposed a new water meter reading system design which contains a conversion device that could convert analog water usage data into the digital one, installed in existing analog meter. The converted data would be transmitted to local concentrator using a 433 MHz wireless transceiver network and sent to the server that acts as monitoring center via cellular networks. The process of digitizing the water meter does not need to be done by replacing the existing analog water meters. Thus, the investment costs of the water meter digitalization process would be relatively cheaper and its could be a solution for increasing the recording efficiency and accuracy of customer-s water usage data.

Keywords
433 MHz transceiver, cellular network, analog water meter, local concentrator, server, Monitoring center.

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/ZGuzveMf4WYr

Corresponding Author
aisah aisah

Institutions
a) Electrical engineering, POLINEMA Jalan Soekarno Hatta 09 Malang 65141 Indonesia

Abstract
The geographical position of Indonesia which has many small islands and many mountains, there are still many villages in Indonesia that have not received electricity provided by the National Electricity Company (PLN). People in these remote villages can indeed enjoy electricity with their efforts to buy diesel/premium/gas electric generators, etc., from non-renewable fuels that are expensive and difficult to obtain just to meet lighting needs at night. What needs to be further developed is a small-scale power plant for residential needs, with free energy prices and inexpensive generator prices. For that, we choose a wind power system that can be controlled electronically and the focus of our research is to be able to monitor the wind speed that causes the wind turbines to spin and the electricity that can be generated through an electric generator rotated by turbines. The resulting Wind and Electricity Speed can be monitored in real-time at a distance by using a Smart Cellular Phone with Wifi transmission which is currently affordable, besides that we can store this monitor data in a Database which can be displayed at any time in the form of a table or graph so that it can be studied to see the wind characteristics in the area and the characteristics of turbines, generators, and other systems. By using our Smartphone we can also perform Telecontrol of the braking function electrically, and release the burden of charging to the battery that functions as a storage of energy whenever needed.

Keywords
Telecontrol, wind turbines, celluler phone

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/dPE2hDaxfcGC

Corresponding Author
Septriandi Wirayoga

Institutions
a)b)c)d)e)Electrical Engineering Department, Malang State Polytechnic, Jl. Soekarno Hatta 9 Malang

Abstract
Abstract. The rapid development of technology in the field of air transportation technology has made Drones a flying vehicle that has been developed to date. Drones have many uses, for example for hobbies, navigation tools, and transportation equipment. Drones were also developed to monitor environments that are difficult to reach by humans. The ability of manual control with limited distance is an obstacle. This research describes the Mission Definition System (MDS) designed to help in defining the mission of Drones easily and efficiently and to support the application of autonomous aviation. Under the direct supervision of the pilot line, the selection of Drone control will be possible if in an unsafe situation. After the user defines the mission, then it is forwarded to the Mission Calculation Engine, which is tasked with carrying out the proper calculations to obtain a compatible and predictable flight plan. A Flight Plan is a list of orders that the Drone must complete to fulfill the mission designed. Trial results and measurements of the degree of autonomic system accuracy have been carried out 10 times and experienced failed orders as much as possible due to natural factors during the trial. In terms of drone image mapping, it successfully detects objects with a success rate of 88% by mapping several target locations. To upload to the system with a success rate of around 82% due to inadequate telecommunication service factors at the testing location.

Keywords
mission definition system, machine mission calculation, mobile node, static node, automatic drone.

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/J6pkAP9uj8FY

Corresponding Author
faris abdul aziz

Institutions
a)Malang State Polytechnic of East Java Province, Indonesia. Address: Jl. Soekarno Hatta No.9, Jatimulyo, Kec. Lowokwaru, Malang City, East Java 65141
b) Applied Masters program (S2) in Electrical Engineering

Abstract
Abstract. Water is substance that is important for life after air, if it has been polluted by chemicals it is very dangerous for living things. The development of the industry uses chemicals in a production that causes hazardous waste, even though it has been reprocessed in the filtering process, if it is less than perfect, the water will be polluted if disposed of in the river flow. Identification and monitoring measures are needed that require media to use device that includes a sensor containing the pH of water that comes from the content of acidic substances in water, turbidity or the content of solid objects in water, and water temperature. The data collection method uses the node MCU microcontroller. Then the data is sent via wireless connection to be stored on the database server. Testing to see the results of monitoring using an android application that is connected to the server. From the results, it can be concluded that the data displayed on the application can run smoothly, the value displayed can be seen in real time.

Keywords
monitoring systems, Ph, turbidity, temperature, node MCU

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/x6TryU2JAtMC

Corresponding Author
ridho hendra yoga perdana

Institutions
State Polytechnic of Malang

Abstract
Along with increasing years, meeting food needs in Indonesia continues to experience improvements. This is because it is not balanced between the rate of population growth and the amount of food production. In order to help increase food production and improve the quality of food, modern technology in agriculture is needed, one of which is a greenhouse. Most greenhouses still use manual watering systems that have not been supported by technology that utilizes an automatic watering system and is accompanied by a monitoring system, temperature and humidity control and greenhouse soil moisture using wireless sensor network communications. By spreading 6 nodes at each point and each node equipped with 3 sensors, it is expected that the greenhouse monitoring and control process will be more thorough. The results of testing the temperature of the greenhouse increased by 23%. This also applies to the value of air humidity experiencing an increase of 4% and soil moisture of 1.20%.

Keywords
observation, greenhouse, wireless sensor networks

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/jmnrTHP9QUd8

Corresponding Author
YOYOK HERU PRASETYO ISNOMO

Institutions
(a)(b)(c) Telecommunication Program Study, Electrical Department, Malang State Polytechnic

Abstract
The optical fiber sensing system is free from the effects of electromagnetic wave interference and radio frequency interference. It becomes a strong reason why this research takes the topic of temperature sensor design using fiber optics. The temperature difference between the incoming light source at one end of the fiber optic cable and the temperature of the sensor will cause a difference in wavelength between the incoming light source and the light reflected by a sensor or passed by a sensor. The difference in wavelength will be converted into RGB value, then it will be converted into a temperature. The method of designing fiber optic sensors used in this research is experiment, called: - heating the ends of the fiber optic core with analytic splicers so they will obtain the shape of the optical fiber end such as spherical and oval fiber optic ends, -peeling the jacket between two ends of the fiber optics and coating optical fiber with plates. The test results for temperature measurements between 303oK to 545oK show that (1) reflected (a) spherical optical fiber sensor has a 7% error, (b) oval optical fiber sensor has a 7.5% error, and (2) forwarded, has an error 1.296 %.

Keywords
optical fiber temperature sensor; temperature sensor geometry, wavelength convert into temperature units; application of wavelength convert into temperature

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/z4jBRtMeVk2x

Corresponding Author
Amalia Eka Rakhmania

Institutions
State Polytechnic of Malang
m.taufik[at]gmail.com

Abstract
Indonesian population has grown rapidly, as shown in Central Statistics Agency report that in 2018, Indonesia-s population reached 265,015,030 million. Along with the increasing number of population, water for daily needs is in high demand. A good monitoring and water management is needed to oversee the water usage efficiently. Currently, local water company still implements postpaid payment system that is time and human resources inefficient. In this study, we proposed the implementation of internet of things (IoT) in designing prepaid water meter card for real time water usage monitoring. The card could also be used to directly purchase water quota online via website. The proposed water meter used air vent valve system combined with the water flow sensor to measure the amount of user-s water usage. Result shows that the proposed system could work properly with the error value of 2.84% measured from the difference between water flow read in conventional water meter with the measured value in our proposed water meter. The purchased quota will be directly deducted based on the amount of measured water usage. These process was done in real time environment and the data will be automatically stored in server. When user is running out of quota, solenoid valve embedded in the proposed water meter system will be automatically closed such that user have no access to water source.

Keywords
Prepaid water meter, water flow, real time

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/2wbA6aqZvB4C

Corresponding Author
Achmad Sutanto

Institutions
a) State Polytechnic of Semarang
Jalan Prof. H. Seodarto, S.H, Tembalang, Semarang, 50275, Indonesia
* achmadsutanto[at]gmail.com
b) State Polytechnic of Semarang
Jalan Prof. H. Seodarto, S.H, Tembalang, Semarang, 50275, Indonesia

Abstract
Wireless Sensor Network (WSN) is currently developing so rapidly. This can encourage the creation of many innovative and implementable products that are very useful in everyday life. One of these products is the utilization of WSN for monitoring the condition of the hen coop, caring and increasing productivity of livestock in the midst of the difficult conditions to control and know the state of the coop manually. In this study, an automated system will be designed to keep the hen coop close to ideal conditions includes the temperature of the cage, air humidity, and the chicks feeding system automatically and periodically. This research was compiled using a combination of several sensors that are arranged in a micro-controller such as the DHT11 sensor as temperature sensing, Load cell sensors as sensing the availability of residual feed and some Servo for action actuators to create the desired hen coop atmosphere. The program is connected through the WSN and using Raspberry as a communication device to the network. The expected results with this system include ease of control of hen coop for owners or workers, maintained poultry health, and maximum yields of livestock products.

Keywords
WSN; Smart farming; Smart hencoop; Livestock

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/QNGYwnMLA4ZE

Corresponding Author
Muhammad Nanak Zakaria

Institutions
Politeknik Negeri Malang

Abstract
The development of communication technology, both on algorithms and devices has been so rapid. With a large number of buildings with wide locations, there are still many spaces that are not reachable by communication devices. Therefore, it is necessary to add a new communication tool that can be used to convey information in the campus environment intended for announcements, from one place to another or from one room to another simultaneously, both with point to multipoint as well as point to point characteristic which is suitable for internal communication and emergency situations. Using a WiFi (Wireless Fidelity) Module which is a Wireless Local Area Network based on the IEEE 802.11 specification. This wireless network can be expanded without using a backbone cable. Digital audio effects can be applied in real time using DSP (Digital Signal Processing) Starter Kit TMS320C6713 by implementing Simulink in the model. From the results of 1 kHz tone signal processing, the amplitude changes periodically between 81.6 dB to 94.3 dB. For periodic frequency changes between 502 Hz to 950 Hz there is a distortion of 95.7 dB, where the resulting sound output effect has little noise on the output signal.

Keywords
TMS320, WiFi, DSP, point to point / multipoint

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/NWZxhnA4zp6y