https://elf.cs.pub.ro/wsn/wiki/ 2026-05-16T10:17:49+00:00 https://elf.cs.pub.ro/wsn/wiki/ https://elf.cs.pub.ro/wsn/wiki/lib/tpl/dokuwiki/images/favicon.ico text/html 2014-02-06T23:03:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/a-mac-protocol-for-wsn?rev=1391720597&do=diff <pre> @@ -112,8 +112,10 @@ de comunicatie, pentru a vedea cum se comporta la aparitia decalajelor de timp. Rezultatele au aratat ca dupa sute si mii de iteratii, ceasurile nu s-au desincronizat mai mult decat erau la pornire. + {{:proiecte:mac:paper.pdf|}} + {{:proiecte:mac:mac.zip|}} ===== Bibliografie/Resurse ===== </pre> text/html 2017-01-26T23:33:02+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/coap-sparrow?rev=1485466382&do=diff <pre> @@ -1,7 +1,7 @@ ====== Porting CoAP on Sparrow v4 ====== - Dragan Dan-Stefan - Master AACdasda + Dragan Dan-Stefan - Master AAC ===== Introduction ===== </pre> text/html 2017-01-23T22:30:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/encrypted-communication?rev=1485203443&do=diff <pre> @@ -123,6 +123,12 @@ {{ :proiecte:enc-comm-demo.png?1200 |}} ===== Resources ===== + + * AES library implementation: {{:proiecte:aes.zip|}} + * AES library tests: {{:proiecte:aes_test.zip|}} + * Modified SparrowRadio library: {{:proiecte:sparrowradio.zip|}} + * **EncTransmitter**, **EncReceiver** and **BadReceiver**: {{:proiecte:enccommunication.zip|}} + </pre> text/html 2018-06-07T16:37:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/environment-monitoring?rev=1528378673&do=diff <pre> @@ -58,9 +58,9 @@ }; &lt;/code&gt; ===== Gathering data ===== - === Temperature and humidity === + ==== Temperature and humidity ==== &lt;code cpp&gt; struct sensor_temperature_t { float temperature; @@ -77,15 +77,15 @@ uint16_t proximity; }; &lt;/code&gt; - === Battery === + ==== Battery ==== &lt;code cpp&gt; typedef float sensor_battery_t; &lt;/code&gt; ===== Usage === - === Software serial example on Sparrow === + ==== Software serial example on Sparrow ==== &lt;code cpp&gt; #include &lt;SoftwareSerial.h&gt; #include &lt;SHT2x.h&gt; #include &quot;sensor_interface.h&quot; @@ -132,13 +132,13 @@ In a Wireless Sensor Network, nodes are typically equipped with power-constrained batteries, which are often difficult and expensive to be replaced once the nodes are deployed. Therefore, it is a critical consideration on reducing the power consumption in the network design. Energy in WSN nodes is consumed by the CPU, by sensors or actuators, and by radio, with the last consuming the most Although both protocols operate at 2.4 GHz frequency, 802.15.4 is low-speed and low-rate and ATmega128RFA1 has Ultra Low Power consumption as we can see below. - == ATmega128RFA1 power consumption == + === ATmega128RFA1 power consumption === {{:proiecte:atmega128rfa1_power_consumption.png?500|}} - == ESP8266 power consumption when radio is on == + === ESP8266 power consumption when radio is on === In contrast, ESP8266 has more processing power and together with the power required by the bandwidth and data rate of Wi-Fi, it utilizes almost 10 times more energy, as we can see below. {{:proiecte:esp-power-consumption_radio.png?500|}} @@ -183,8 +183,9 @@ And so, the total amount of capacity needed is around **0.305mAh per cycle** and a **total of 3.355mAh**. This consumption will last with the reference 3800 mAh battery for about **47 days**. This a good improvement over the previous consumption when running continuously, but it can still be improved. + ===== Optimizing power consumption ===== The first thing a node should do is to read sensors data and then decide either to send the data or go back to sleep. In this case, we do not want the Wi-Fi radio to be on, without the need to use it. </pre> text/html 2014-01-16T13:56:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/ghid_doc?rev=1389873384&do=diff <pre> @@ -1 +1,11 @@ + ====== Ghid Documentație Proiect PM ====== + - Materialele (scheme, surse, etc) preluate din alte surse trebuie listate la capitolul Bibliografie / Resurse + * Site-ul pe care sunt listate documentaţiile proiectelor este public şi aparţine facultăţii, nu ne permitem acuzaţii de plagiat + * Sursele bibliografice ajută la evaluarea proiectului, indică efortul realizat pentru studierea temei proiectului înainte de a realiza un design şi o implementare proprie + - Fără plagieri. Asta include: + * Documentaţii traduse în română. Excepţie fac (scurtele) citate. + * Scheme şi surse folosite în proiect fără să fie indicat faptul că nu vă aparţin şi locul de unde au fost preluate + - Fără scheme şi schiţe făcute în Paint (sau echivalent) + * Pentru scheme electrice există [[http://www.cadsoft.de|EAGLE]] + * Pentru scheme bloc sau flowchart-uri se poate folosi uşor şi o aplicaţie web, cum ar fi [[http://www.diagram.ly]] sau MS Word, Visio, OpenOffice Draw, etc. </pre> text/html 2017-02-16T00:46:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/influxdb?rev=1487198764&do=diff <pre> @@ -111,8 +111,20 @@ } &lt;/code&gt; We made two implementations that send data from an LDR sensor to the server. + + &lt;code&gt; + const int LDR = A0; + void loop() { + int ldr = analogRead(LDR); + Serial.printf(&quot;LDR value = %d\n&quot;, ldr); + + send_value(ldr); + + delay(500); + } + &lt;/code&gt; ==== Sendint to HTTP endpoint (TCP) ==== &lt;code&gt; </pre> text/html 2017-04-03T10:33:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/iotdevs?rev=1491204823&do=diff <pre> @@ -1,4 +1,9 @@ + ====== IOTDevs ====== + + Generic interface for IOT Developers they can use to monitor existing IOT enabled devices. If the device is configured to store it&#039;s output in an influxDB timeseries database (https://elf.cs.pub.ro/wsn/wiki/proiecte/influxdb) then this UI API can render it easily. + Currently work in progress, we hope to release a version of it by the end of the semester + project link : https://github.com/volvox93/IoTDevs running instance will be available at: http://52.59.218.207:8000 ( as soon as mihai enables the port ) </pre> text/html 2017-03-27T19:13:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/microsal?rev=1490631201&do=diff <pre> @@ -140,9 +140,9 @@ * create number of repetitions linked with TT * draw how the signal will look * show all patients, even the inactive ones * tabbed ui for patients - + {{ :proiecte:microsal:75_ui.png?direct&amp;200 |}} ==== Refactor the characteristics ==== Current pain points: * add a time characteristic </pre> text/html 2018-11-22T23:47:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/nuttx-sparrow?rev=1542923240&do=diff <pre> @@ -37,20 +37,24 @@ &lt;code bash Get NuttX for Sparrow&gt; git clone git@bitbucket.org:vanbarbascu/nuttx_sparrow.git cd nuttx_sparrow &lt;/code&gt; - &lt;code bash Configure and Build&gt; LD_LIBRARY_PATH=/usr/local/lib/ tools/configure.sh -l -a apps sparrow_4.1/nsh make &lt;/code&gt; &lt;code bash Flash to board&gt; tools/flash.sh --port /dev/ttyUSB0 + &lt;/code&gt; + + Connecting to the serial port gives us the NuttxShell. + &lt;code &gt; + screen /dev/ttyUSB0 &lt;/code&gt; ===== Bibliography ===== [[http://www.nuttx.org/Documentation/NuttxPortingGuide.html#Introduction|NuttX porting guide]] [[https://clkdiv8.com/wiki/doku.php|Sparrow Wireless Sensor Node]] </pre> text/html 2015-09-28T17:48:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/programarea-sparrow-din-arduino?rev=1443451723&do=diff <pre> @@ -1,7 +1,7 @@ ====== Programarea nodului senzorial Sparrow v3 folosind Arduino IDE ====== - Marin Alexandru Gabriel - Master AAC1 + Marin Alexandru-Gabriel - Master AAC1 ===== Introducere ===== ==== Arduino ==== </pre> text/html 2018-11-25T19:35:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/qemu?rev=1543167306&do=diff <pre> @@ -246,9 +246,12 @@ ====Tutorials for building nuttx with buildroot==== http://ieiointhecomputerland.blogspot.com/2015/02/nuttx-is-real-time-operating-system.html https://cristovaorufino.wordpress.com/2014/01/14/compiling-nuttx-for-stm32f4discovery/ ====Network==== - http://www.zilogic.com/blog/building-nuttx.html + If you want to implement the stelaris ethernet follow [[http://www.zilogic.com/blog/building-nuttx.html]] + + ====Other modules for stm32==== + If you want to test different functionalitties for stm32-f4 discovery follow [[http://jeremyherbert.net/get/stm32f4_getting_started]] ===== Bibliography ===== - [[https://www.cnx-software.com/2012/03/08/how-to-build-qemu-system-arm-in-linux/]] - [[http://beckus.github.io/qemu_stm32/]] - [[http://ieiointhecomputerland.blogspot.com/2015/02/nuttx-is-real-time-operating-system.html]] </pre> text/html 2017-02-13T20:11:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/sparrow?rev=1487009474&do=diff <pre> @@ -67,8 +67,12 @@ {{ :proiecte:screen_shot_2017-02-13_at_18.18.27.png?400|}} ===== Results and Future Work ===== This project is in a Proof-of-Concept state right now. Led on pin 11 can be turned on and off from the Coap client. After adding arduino-ESP8266 and COAP libraries to Arduino/libraries, espwifi_poc.ino [10] can be run to start the server. One must follow the activity on the serial in order to get the assigned IP address. This will be used afterwards in Copper (Firefox) to connect to the server, in our example as follows: + + &lt;code&gt; + coap://&lt;ip_address&gt;:8083/light123 + &lt;/code&gt; {{:proiecte:screen_shot_2017-02-13_at_19.27.50.png?400|}} {{ :proiecte:screen_shot_2017-02-13_at_19.27.40.png?400|}} </pre> text/html 2015-10-08T01:01:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/sparrowv3-devicehub?rev=1444255303&do=diff <pre> @@ -82,13 +82,13 @@ &lt;/code&gt; ===== SHT21 library ===== - There is one more thing that we must take care of before we can start playing with our WSN monitoring project. We&#039;ll need a library for reading values from SHT21, our relative humidity and temperature sensor, connected to the micro controller through an I2C interface. You&#039;ll need to use the attached files (TODO insert link towards .h and .cpp) in the following way: + There is one more thing that we must take care of before we can start playing with our WSN monitoring project. We&#039;ll need a library for reading values from SHT21, our relative humidity and temperature sensor, connected to the micro controller through an I2C interface. You&#039;ll need to use the files stored in this {{:proiecte:sht21.zip| archive}} in the following way: 1. In folder //Arduino\libraries// create a new folder, named //sht21// - 2. Copy the attached files in it + 2. Copy the files from the attached archive in it After this it will be possible to import sht21.h header into a project, as you&#039;ll see below. NOTE: If Arduino IDE was already started, a restart will be needed. </pre> text/html 2018-11-14T17:16:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/start?rev=1542208594&do=diff <pre> @@ -34,6 +34,6 @@ - [[ proiecte:Environment Monitoring | Environment monitoring using Sparrow and ESP8266 ]] ===== Proiecte 2018 ===== - [[ proiecte:NuttX Sparrow | Porting NuttX on Sparrow v4 ]] - - [[ proiecte: temp | Temp ]] + - [[ proiecte: temp | CoAP for Contiki OS over Sparrow WSN ]] - [[ proiecte: Qemu | Nuttx over Qemu ]] </pre> text/html 2014-02-07T12:58:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/stiva-wds?rev=1391770698&do=diff <pre> @@ -52,9 +52,9 @@ === Tabela de rutare === - Tabela de rutare contine 3 intrari: destinatie, next hop si numarul de hopuri pana la destinatie. Fiecare nod din retea contine propria tabela de rutare. Transmisia pachetelor in retea de la un nod sursa la un nod destinatie se realizeaza in conformitate cu datele din tablea de rutare, pentru a se folosi calea + Tabela de rutare contine 4 intrari: destinatie, next hop, TTL si numarul de hopuri pana la destinatie. Fiecare nod din retea contine propria tabela de rutare. Transmisia pachetelor in retea de la un nod sursa la un nod destinatie se realizeaza in conformitate cu datele din tablea de rutare, pentru a se folosi calea cea mai scurta. Dupa procesul de asignare a unui identicator pentru un nod nou din retea, nodurile deja existente, care au receptionat mesajul de broadcast cu noua valoare pentru max, trimit mesaj catre nodul nou cu tablela de rutare. Noul nod receptioneaza primul mesaj cu tabela de rutare si stocheaza informatiile in stiva. Pentru toate mesajele receptionate ulterior, secvential, verica datele din tabela pentru a detecta eventualele modicari, respectiv o tabela de rutare noua. Daca informatiile nu difera pastreaza prima tabela, in caz contrar arunca prima tabela si stocheaza datele receptionate ulterior. Next-hop-ul se calculeaza conform protocolului DSDV, incrementand valoarea unui metric de catre fiecare nod in parte, la receptionarea tabelei. === Sleep si Wake-up === </pre> text/html 2018-11-28T11:48:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/temp?rev=1543398491&do=diff <pre> @@ -188,8 +188,7 @@ &#039;body&#039; : TemperatureValue, }) &lt;/code&gt; - ===== Bibliography ===== </pre> text/html 2014-02-07T10:47:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://elf.cs.pub.ro/wsn/wiki/proiecte/wireless-mac?rev=1391762836&do=diff <pre> @@ -60,8 +60,17 @@ 4 0:00:00.907079 ----&gt; 00.00.00.00.7A.07.0D.FF.04.00.02.96.5B 0.416 ms 5 0:00:00.505080 &lt;==== 00.00.00.00.7A.07.0D.FF.04.00.02.96.5B 0.416 ms 5 0:00:01.008073 ----&gt; 00.00.00.00.7A.07.0D.FF.05.00.03.B1.4A 0.416 ms 5 0:00:01.510491 ----&gt; 00.00.00.00.7A.07.0D.FF.05.00.03.B1.4A 0.416 ms + + In continuare vom descrie un frame de mai sus. Vom lua ca referinta frame-ul nr 4 (00.00.00.00.7A.07.0D.FF.01.00.01.4D.C8): + * 7A.07 (2 octeti) - lungimea frame-ului; + * 0D (1 octet) - Magic payload, numarul 13; + * FF (1 octet) - Adresa destinatie (MAC) a frame-ului; FF reprezinta adresa broadcast; + * 01 (1 octet) - Adresa sursa (MAC) a frame-ului; + * 00 (1 octet) - tipul pachetului encapsulat. Acesta este un pachet numit &quot;DISCOVERY&quot; de catre noi, si are valoarea 0; + * 01 (1 octet) - Numarul de hopuri pe care il are nodul sursa pana la nodul base station; Informatie specifica pachetului DISCOVERY + * 4D.C8 (2 octeti) - CRC; ===== Informatii aditionale ===== == Anexa 1 - structuri de date == * tipurile de mesaje si structurile lor </pre>