Deep Learning Approach at the Edge to Detect Iron Ore Type

There is a constant risk of iron ore collapsing during its transfer between processing stages in beneficiation plants. Existing instrumentation is not only expensive but also complex and challenging to maintain. In this research, we propose using edge artificial intelligence for early detection of landslide risk based on images of iron ore transported on conveyor belts. During this work, we defined the device edge and the deep neural network model. Then, we built a prototype will to collect images that will be used for training the model. This model will be compressed for use in the device edge. This same prototype will be used for field tests of the model under operational conditions. In building the prototype, a real-time clock was used to ensure the synchronization of image records with the plant’s process information, ensuring the correct classification of images by the process specialist. The results obtained in the field tests of the prototype with an accuracy of 91% and a recall of 96% indicate the feasibility of using deep learning at the edge to detect the type of iron ore and prevent its risk of avalanche.

A square root information filter for multi-GNSS real-time precise clock estimation

Real-time satellite orbit and clock estimations are the prerequisite for Global Navigation Satellite System (GNSS) real-time precise positioning services. To meet the high-rate update requirement of satellite clock corrections, the computational efficiency is a key factor and a challenge due to the rapid development of multi-GNSS constellations. The Square Root Information Filter (SRIF) is widely used in real-time GNSS data processing thanks to its high numerical stability and computational efficiency. In real-time clock estimation, the outlier detection and elimination are critical to guarantee the precision and stability of the product but could be time-consuming. In this study, we developed a new quality control procedure including the three standard steps: i.e., detection, identification, and adaption, for real-time data processing of huge GNSS networks. Effort is made to improve the computational efficiency by optimizing the algorithm to provide only the essential information required in the processing, so that it can be applied in real-time and high-rate estimation of satellite clocks. The processing procedure is implemented in the PANDA (Positioning and Navigation Data Analyst) software package and evaluated in the operational generation of real-time GNSS orbit and clock products. We demonstrated that the new algorithm can efficiently eliminate outliers, and a clock precision of 0.06 ns, 0.24 ns, 0.06 ns, and 0.11 ns can be achieved for the GPS, GLONASS, Galileo, and BDS-2 IGSO/MEO satellites, respectively. The computation time per epoch is about 2 to 3 s depending on the number of existing outliers. Overall, the algorithm can satisfy the IGS real-time clock estimation in terms of both the computational efficiency and product quality.

SISTEM KENDALI ALAT PEMBERI PAKAN KUCING OTOMATIS MENGGUNAKAN MODUL NODEMCU

ABSTRAKUntuk memberikan makan kucing agar optimal maka dibuatnya sistem kendali alat pemberi pakan kucing otomatis menggunakan modul nodeMCU agar dapat mempermudah pemilik kucing yang merasa kesulitan dalam proses pemberian pakan pada kucing. Alat ini dapat bekerja secara otomatis menggunakan modul real time clock (RTC) untuk pengaturan waktu pemberian pakan yang akan dikontrol oleh modul nodemcu sebagai microcontroller dan juga dapat di kontrol langsung melalui smartphone pengguna ketika akan menambahkan pakannya. Alat ini juga dapat mengirim pesan ke smartphone pengguna jika pakan yang berada pada wadah pakan sudah dimakan oleh kucingnya.Kata Kunci : Pakan, NodeMCU, Real Time Clock, Motor Servo, Sensor Ultrasonik.

ARDUINO MKR FOX 1200, MKR1000, AND MKR VIDOR 4000 ANALYSIS USING A SIMPLE RTC ALARM METHOD

Arduino MKR merupakan salah satu bagian dari keluarga arduino yang memiliki kemampuan yang berbeda dengan arduino biasa. Dalam penelitian ini, penulis akan membahas kemampuan dari IC RTC yang sudah tertanam pada papan Arduino MKR dan membandingkan data dari ketelitian pembacaan nilai RTC. Nilai yang didapatkan akan menunjukkan papan Arduino MKR yang memiliki kemampuan pembacaan nilai RTC terbaik. Adapun papan Arduino MKR yang digunakan dalam penelitian ini yaitu dengan tipe Arduino MKR 1000, Arduino MKR Fox 1200, dan Arduino MKR Vidor 4000. Untuk mendukung penelitian, penulis menggunakan metode penelitian kuantitatif eksperimental. Penggunaan metode ini sangat cocok digunakan karena metode ini menonjolkan angka sebagai data dan penulis juga melakukan percobaan langsung pada papan Arduino MKR. Setelah penelitian dilakukan, maka dari hasil percobaan diperoleh rata-rata MKR 1000 memiliki selisih waktu terkecil sebesar 2.912 detik dibandingkan dengan MKR Fox 1200 dengan selisih waktu rata-rata 4.097 detik dan MKR Vidor 4000 memiliki selisih waktu rata-rata 5.804 detik. Untuk proyek yang menggunakan RTC (Real Time Clock) direkomendasikan menggunakan MKR 1000.

RANCANG BANGUN BEL OTOMATIS DI STIKOM TUNAS BANGSA BERBASIS ARDUINO DILENGKAPI DENGAN OUTPUT SUARA

Bell is certainly no stranger to education. In general, the bell still uses human power to ring it. It is still rare in the world of education to use an automatic bell that can work alone according to a predetermined time in the teaching and learning process. The purpose of the design of automatic bells at STIKOM Tunas Bangsa Pematangsiantar is to facilitate the work of picket officers and optimize the time for teaching and learning. The work process of this tool is to input the predetermined lesson time into the Arduino Uno Microcontroller using C language in the Arduino IDE Software. After that the microcontroller will read the program schedule hours that have been inputted into the microcontroller. If the program inputted matches the time schedule of today's lesson hours, the bell will automatically output the output in the form of an information notification sound. This tool also has a 16x2 Keypad Shield for setting the manual in the test mode that is matched in the time of the ongoing test and automatically produces notification sound output, where the automatic bell is fully controlled with the Arduino Uno Microcontroller command and the time setting that has been set into the RTC ( Real Time Clock) as a time saver. Keywords: Arduino Uno, RTC, Keypad Shield 16x2, STIKOM Tunas Bangsa

Arduino Digital Clock without RTC Module

This paper analyzes a clock using Arduino without Real time clock (RTC). The development of the digital clock in Arduino is to provide its own time without RTC. Generally, electronic circuit designers use RTC to construct a clock. Such a circuit requires an extra circuit and power. The CMOS battery supplies power to the RTC, once the CMOS battery power is discharged. It automatically erases the date and time and requires an update from an external device. Considering these facts, RTC is avoided and code with nested looping is used to maintain timing in Arduino. It enables us to modify the time using a keypad and LCD without an external device. Continuous power is supplied to the Arduino using a battery backup. Such a circuit is simple with reduced code. All features available in RTC are available in this circuit. Keywords: Arduino Atmega 328P, RTC, LCD16 x 2, Keypad 4x3.

The Louisiana Space Consortium Student Sounding Balloon Program

Since the fall of 2003 the Louisiana Aerospace Catalyst Experiences for Students (LaACES) program has been providing university students a two semester project that culminates with the flight of a scientific balloon experiment. During the first semester students complete the Student Ballooning Course (SBC) which teaches basic skills necessary to develop a working scientific payload. The SBC consists of a series of lectures and activities providing instruction in electronics, programming, project management, balloon payload design, and introductory circuit assembly. The SBC introduces the BalloonSat, a sub-assembly designed at LSU for LaACES which contains a microcontroller, real-time clock and a four channel analog-to-digital converter. The second semester is spent on the design, development, testing and calibration of the payloads. Upon completion of the Flight Readiness Review, students travel to the NASA Columbia Scientific Balloon Facility (CSBF) in Palestine, Texas for integration, launch, recovery and science presentations. A flight capable Automatic Packet Reporting System (APRS) radio beacon armed with GPS and command capable cut down was developed to track the balloon during flight and to cut-down the payloads. Tracking vehicles are outfitted with radios tuned to APRS frequency and laptops displaying maps of the payload location. Here we describe LaACES; program development, tools and technologies, implementation, program, management issues and flight experiences.