SYNTHETIC VISION SYSTEM CALIBRATION FOR CONFORM PROJECTION ON THE PILOT’S HEAD-UP DISPLAY

Situational awareness of the crew is critical for the safety of the air flight. Head-up display allows providing all required flight information in front of the pilot over the cockpit view visible through the cockpit’s front window. This device has been created for solving the problem of informational overload during piloting of an aircraft. While computer graphics such as scales and digital terrain model can be easily presented on the such display, errors in the Head-up display alignment for correct presenting of sensor data pose challenges. The main problem arises from the parallax between the pilot’s eyes and the position of the camera. This paper is focused on the development of an online calibration algorithm for conform projection of the 3D terrain and runway models on the pilot’s head-up display. The aim of our algorithm is to align the objects visible through the cockpit glass with their projections on the Head-up display. To improve the projection accuracy, we use an additional optical sensor installed on the aircraft. We combine classical photogrammetric techniques with modern deep learning approaches. Specifically, we use an object detection neural network model to find the runway area and align runway projection with its actual location. Secondly, we re-project the sensor’s image onto the 3D model of the terrain to eliminate errors caused by the parallax. We developed an environment simulator to evaluate our algorithm. Using the simulator we prepared a large training dataset. The dataset includes 2000 images of video sequences representing aircraft’s motion during takeoff, landing and taxi. The results of the evaluation are encouraging and demonstrate both qualitatively and quantitatively that the proposed algorithm is capable of precise alignment of the 3D models projected on a Head-up display.

Fast Timing for High-Rate Environments with Micromegas

The current state of the art in fast timing resolution for existing experiments is of the order of 100 ps on the time of arrival of both charged particles and electromagnetic showers. Current R&D on charged particle timing is approaching the level of 10 ps but is not primarily directed at sustained performance at high rates and under high radiation (as would be needed for HL-LHC pileup mitigation). We demonstrate aMicromegas based solution to reach this level of performance. The Micromegas acts as a photomultiplier coupled to a Cerenkovradiator front window, which produces sufficient UV photons to convert the ∼100 ps single-photoelectron jitter into a timing response of the order of 10-20 ps per incident charged particle. A prototype has been built in order to demonstrate this performance. The first laboratory tests with a pico-second laser have shown a time resolution of the order of 27 ps for ∼50 primary photoelectrons, using a bulk Micromegas readout.

TiO2-coated window for facilitated gas evolution in PEC solar water splitting

TiO2 films were prepared for facilitating the evolved gas bubbles to slip over the front window of PEC cells resulting in a transparency improvement of up to 10%.

Passive Cooling Performance of a Solar Chimney and Vertical Landscape Applications in Indonesian Terraced House

Natural ventilation has been promoted as passive indoor cooling technique in hot humid tropical region. However for a single sided window in a typical deep plan terrace house, the effect of natural ventilation is questionable. It is worst when coupled with the fact that available wind in Malang is almost static and unreliable. This paper presents alternative passive technologies integrated to existing terrace house in the city of Malang to achieve indoor cooling assisted by solar chimney and green vertical landscape. A field measurement was conducted using Onset Hobo Data Logger for a specific duration. The solar chimney is installed inside the house harnessing the thermal stack effect of hot air buoyancy that naturally forced the cyclic air movement letting hot air out and bringing in cooler air. The vertical green landscape installed just outside the front window provide shade and filter the incoming air providing cooler and cleaner air. The result showed that the average indoor temperature is within the acceptable comfort range for the whole day. This is considered a significant achievement where the use of solar chimney and green vertical landscape can improve indoor thermal condition thus provide alternative for natural cooling, reduce energy use and healthy environment.

STUDI KEBUTUHAN BUKAAN PADA BANGUNAN PERUMAHAN TYPE MENENGAH DENGAN PENDEKATAN PENCAHAYAAN

The purpose of the light on the environment is to lightening every element of the buildingwhich makes the clearer visual sence. In addition, the presence of the light is hoped to comfort theperson who lives there which their activities. The building on medium size (type 45 and type 54)has the small window. Moreover, the building placed on the block only has the front window. Itcauses the building on medium size will catch less light, the room will be darker, and the lamp willbe turned on the day.The instrument of this research is a software dialux 4, 7. The advantages of using this softwaredialux 4, 7 are it will be easier and more variative in editing the geometry of the room, it will beeasier in inserting the furniture to the room which will be calculated, and the output can be conturgrid-3d.The size of the windows in the guestroom, the family room, and the diningroom of themedium building is about 4, 09- 5, 6 m2. The window in the main bedroom is about 1, 51-1, 96 m2width. The window in the children bedroom is about 1, 38-1, 64 m2 width.Keywords: window, lightening intensity.