Linux嵌入式挑战赛知识库

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Linux Embedded Challenge Knowledge Base

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In acest video se poate observa cum extragem un cod ISBN de pe coperta unei carti.Am folosit un program si anume,zbar-tools. Am verificat ca ISBN-ul este extras cum trebuie,prin faptul ca ne-a afisat in browser, pagina de pe goodreads cu cartea de pe coperta careia l-am extras .
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We are sending one video for 4 milestones. Here we've implemented the server app in python (on the UDOO board) and an client app on Android. We can do everything which is required in those 4 milestones. We have made a list of options on the server from where we can add, delete, show receipts and pompes. The receipts and pompes are stored in json files. From the client app we can obtain the list of receipts and order drinks.
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On the last milestone we already had a car controlled from the computer. For this milestone we made some tweaks for both the car and the app. For the car we added an extra driver(to not lose power when using both motors at the same time) and finally, batteries. The app controls the car similarly to a video game with the WASD key and there is also an interactive meter to update the speed. The app also has the option of enabling cruise control which moves the car at a constant speed, indicated by the meter.
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Am pus initial 2 senzori de miscare cu leduri care se aprind cand detecteaza miscarea ,dupa ce am compilat codul doar unul din senzori a mers ,detecta miscare ,avea o latenta de 8 secunde, timp in care ledul se aprindea intermitent , dupa care se stingea atunci cand nu detecta miscare . din pacate am intampinat o problema dupa ce am facut aceasta prima proba si nu am mai putut uploada cod pe placuta .  urmeaza sa mai adaugam 3 senzori unul de miscare unul ultrasonic si unul de lumina . 
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The UDOO board is conected to the sensors, movement is detected and the alarm is triggered. The code is uploaded on the bitbucket repository.  Repo link: https://bitbucket.org/rneacsu/lec_2017_sigsegv 
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Am uploadat un scurt demo ce cuprinde o descrierea a: - algoritmului folosit. - modul de functionare.
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Pornirea fiecarui motor, dupa ce senzorul de lumina detecteaza "punerea paharului". FIecare motor este controlat cu ajutorul unui releu.
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We implemented an application in c that helps us control the car. We are sending data between cores using serial transmision. We also started to implement a part of the bonus (change direction to avoid obstacles). The source code will be available on git.
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In acest video demonstram prototipul pentru bordul masinii, sistemul de iluminat si mecanismele pentru miscare.
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Pentru indeplinirea cerintelor Milestone-ului 2, am atasat un display LCD la placuta UDOO Neo pentru a afisa datele colectate de la senzori. De asemenea, am realizat un simplu meniu, navigabil din butoane pentru a putea afisa selectiv datele primite de la senzori sau toate datele odata. Dupa cum se poate observa in filmulet, atingerea senzorilor duce la modificarea valorilor masurate de acestia.
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Am constuit masina la care am atasat frontal camera video, sistemul de ghidare a ledurilor in functie de trafic si directia de mers, plus un controller folosit la pornirea masinii, ledurilor si dirijare. Controlul directiei de mers si al orientarii farurilor se face cu ajutorul unor servo motoare. Placuta de dezvolate este alimentata de la o baterie de 5V.
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We show in the video how we managed to connect the circuit, how we made the pwm for different speeds and a little demo with the movement of the car.
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RS Lang Milestone 2: Build the controlling application Build an application that sets the speed of the car at a certain value. The car should be able to move with constant speed and when a new speed value is received from the app, it should accelerate or brake properly.
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Am instalat Tomcat 8.5.14 si MySQL server 5.5 pe placuta UdooNeo, apoi am realizat o aplicatie web in Tomcat care sa faca legatura intre o interfata grafica in browser accesabila de catre utilizator si baza de date. Utilizatorul poate cere in request pentru o anumita data, ora si durata iar daca nu mai exista in request in acea perioada de timp utilizatorul primeste in cod pe care il poate folosi pentru a accesa serverul in perioada de timp ceruta.
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Am atasat un lcd si am afisat datele citite pe el, am pus mana pe senzorii de temperatura si peste cel de lumina pentru a se observa ca se schimba valorile.
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A video showing the first few features of our Adaptive Headlights project. So far, we put together: power on/off buttons LEDs for the low beams, high beams and side lights servos for the high beams When the angle at which the wheel is tilted is greater than a certain threshold, the side lights are turned on progressively, in order to improve vision of the incoming portion of road. When the angle is lower than said threshold, the high beams adapt their position to follow the road.
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Am folosit SDK-ul pentru Google Assistant, asistentul produs de Google. In video am dat comenzi prin seriala la placuta UDOO, iar outputul este redat pe televizor prin HDMI. Am rulat apoi 5 comenzi vocale cu asistentul.
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In this video you can see the hdmi connection we had made and the data retrieved from the sensors printed on the screen as a result. 
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