Wireless Definition and 247 Threads

Hello, As a project I am making a wireless window blinds controller. It will be a motor turning the handle of the blinds. It may or may not use bluetooth and or wifi. It will be wireless through some means though. The device does not raise or lower the blinds.I measured a peak torque of 2 ft...

So I've been having consistent problems with my wireless connectivity. I ran the troubleshooting option and got the following results: Connectivity Packet statistics Ndis Rx: 12929 Ndis Tx: 7601 Unicast decrypt success: 1845 Multicast decrypt success: 0 Unicast decrypt failure: 0 Multicast...

I have recently installed ubuntu 14.04 alongside windows 7 but I'm having major issues with connecting to wireless networks. The networks are detected and show up in the network manager, but when I connect and insert the correct password (double checked), a window continues to pop up saying that...

Hello. I'm only twelve, so my ideas may be flawed,but I would appreciate someone who would advise me about my new invention. I will start with the equations.λ=h/p. The particle wave duality of light is necessary for the function of the solar panel atop the generator. As photons strike this, they...

Some researchers claim that wireless soliton technics offer bandwidth up to 1 THz and they even made some type of such device. I wish to know if that thing is capable to work as an omni-directional antenna or it works rather like point-to-point laser communication? Could there be a such thing as...

Can anyone tell me how to convert electrical lan signals into optical signals for wireless transmission via LEDs like they use it Li-Fi systems.

i have decided to do wireless power transmission for my university mini project competetion. So can anyone clear me how to proceed with it. If possible recommend me a better topic. many thanks in advance...

Hi all I'm an electrical engineering student currently looking for a thesis topic. I did a project previously in wireless power transmission based on inductive resonance coupling with different designs for the transmitter and receiver. I'm very interested in this topic, mainly wireless power...

I've noticed that lately my wireless internet on my laptop is slow and goes out intermittently. Everything else using my wireless network seems to work just fine though. (Phone and tablet) When I plug a network cable in and use a wired connection I don't seem to have any problems. Signal...

I decided to use an older computer that's been collecting dust for a few years to learn some Linux, so I wiped the drive and installed Ubuntu. I recently bought a new wireless network card with a USB connection, and I decided to use it with this computer. I found some instructions online and...

Wireless electricity transmission works by passing alternating current through one coil to which another coil corresponds and thus is coupled. At least this is the way WiTricity explains it. They also say that it's very much like mechanical resonance and that's why it's more efficient over...

So, I need to make a wireless wooden speaker (no Bluetooth or anything, you just put the phone in and it makes it somewhat louder) for my phone (white iPhone 4 without a case if you wanted to get an idea of the dimensions and aesthetics). My design sketch as of now is a cube measuring roughly...

Ok, so I have my desktop connected to my Linksys E2500 router with DD-WRT installed, and the router acting as a repeater to get my desktop on the internet (see my previous thread). Now I'm just wondering whether it would be better to have my wireless devices connect to the E2500, or directly...

I recently rearranged my house, and now the most convenient place to set up my computer is unfortunately inconvenient to run a wire to. Fortunately, I have an old router lying around (Linksys E2500), that I figured I could use as a bridge, and while it wouldn't be as fast as connecting a wire...

There's been some buzz about wireless energy transfer for quite some time now, but it seems really far fetched to me that we will get any significant power usage out of wireless energy transfer. What do you guys think? Does this form of energy have any significant potential at all, or is it just...

Hello, I have a little wireless camera that I want to power on a battery. The camera requires 12V ~1 amp DC to run. I am a DIY kind of person and have a few lead acid batteries from work, all of them are 12V DC, but they range from 4.5 amp to 12 amp. I've worked with AC power in the past...

anyone can help me l want to make an electrical project wireless power transmission .can you please provide me some useful link where l can found circuit diagram and list of necessary equipment.

What is the difference between magnetic resonance and magnetic induction when it comes to charging devices and other types of wireless electricity. I was doing some research on this but was not able to find a clear answer. If someone could help me with this that would be greatly appreciated...

I have a Clear wireless broadband box at the place I'm renting a room at, but I'm at the outer edge of the tower's range. I want to boost the signal strength using a directional antenna. There are a number of old DISH and DirecTV satellite receivers floating about, and I can get one for free...

Homework Statement On a HSDPA multicode peak rate of wireless communication Channel Coding rate: 3/4. How was the value 7.2 Mbps found using 10 codes of a 16 QAM modulation using signal processing path.Homework Equations Not sureThe Attempt at a Solution I feel bad in saying this, but I have...

Careful decapsulation of wireless chipsets results in these structures: http://imageshack.us/a/img690/7145/9yd4.jpg http://imageshack.us/a/img854/7783/kq3i.jpg http://imageshack.us/a/img850/3041/xxki.jpg http://imageshack.us/a/img826/2589/easq.jpg I'm hoping someone can...

Hi I am using win xp on my laptop. I recently purchased D-Link DWM-156 dongle (google for images). In this I insert indian SIM card and hook this into the USB port of my laptop anb then connect to the net. Now these dongles work best when the signal strength is strong. When I take my laptop...

Let's say I have a wireless device, one that works on radio frequencies, let's say it's a remote control car that operates on 100ghz for example's sake. If I were to try operating this car with its intended remote, but then have a friend broadcast similar frequencies, I would obviously get some...

Hey everyone! I've gotten some really good help over in the math section of physicsforums, and I was hoping to get some more of the same here in engineering. I've just finished my sophomore year in school, and I'm about to apply for the EE program at the university in spring. Anyway, I...

First of all, I'm sorry if I posted this in the wrong place or if this question is so bad that you had to spit at your computer, but I'm not really sure how to start this project. Ok, so I have my 1999 Honda which doesn't have a remote to unlock/lock the doors. So I want to make one. It'll be...

Hello there, I am currently using LDVT probes to measure linear displacement (goes without saying, but I said it anyway). The problem with this is that the wire for the probe is very cumbersome and requires extra machining to external parts in order to accommodate the wire without disruption...

So I recently moved houses and with it we were given a new modem. I had previously used a modem and my own (relatively expensive) router which worked wonderfully, but now, with this all in one modem+router they had given my family, the quality of our internet connection has noticeably dropped...

I search after information about who the car can communicate with others cars and protocols for this? I know that these subjects are new so they are several start ups and labs in the universities that research these areas and I will glad to know about them. I will glad if you can help me to...

What is meant by achieving "full diversity gain over Rayleigh fading channel"?

http://www.ted.com/talks/eric_giler_demos_wireless_electricity.html In this video, I have two questions: 1) Why have a capacitor as part of the two circuits? Is it so no actual current flows around the coils, that's all I could come up with. 2) In the picture he shows of the two...

Can anyone recommend me a device that has an electronic stylus and pad to which I can write, and my work is automatically saved into some format readable by a computer? The device should be wireless and thus have its own battery, and it should ideally (like the Kindle) have a memory so that work...

I don't have much experience in EE, but for a project, I was wondering if I could create a device that can wirelessly transmit short binary strings from one end of a classroom to another. Would it be a feasible project for a freshman student of electrical engineering? BiP

Is it possible for me to plug a wireless router into my current wireless router via a cat-5 cable? I would like to do this to get a stronger connection in certain parts of the house. (i have charter, if this helps) All help would be much appreciated

Good Afternoon, I'd like to build a wireless charging circuit from scratch, but I am unsure of where to start. Every time I attempted the experiment the coils would not transfer power and I am unsure of what I am doing incorrectly. If anyone could point me to a resource for DIY wireless...

i am looking to build a device that can communicate with a phone and through that phone you could turn on or off a light or a siren with fairly long range 20 to 30 meters (60 to 90 feet). Would anyone be able to help regarding this device. I am looking for it be as small as possible. also i...

Hi guys, I need to do a project for college Does anyone know where I can find information on the Wireless Networking abilities of my laptop? Can some be found in the control panel? Can I find some online? Any help would be greatly appreciated. Thanks!

Hi all; i would like to establish a wireless connection on my Scientific Linux 6.3 on my laptop the wired connection is well established anyone help me ?

Now I'm sure many of you have wished that you were better able to pay attention in the classroom. Well, what if the teacher gained the ability to monitor the attentiveness of everyone in the classroom? how can this be done? simple, attach a few EEG electrodes to monitor the activity in a...

From what I learned, for an electric current to be induced in a wire, there must be a magnetic flux. On youtube, there are lots of videos showing wireless power transfer to a lightbulb or LED. However, the light is constant. How is the magnetic flux changing in such a setup?

Is it possible to send a digital square-wave signal directly to a wireless transmitter without converting the signal into a continuous format such as the phase shift keying used in WiFi?

Hi all, I'm a Mechanical Engineer but I'm going into uncharted territory both for my company and myself so I could use some help. We currently have a line of trash compactors, of various sizes, which are used in commercial applications from restaurants, to airports, to buisnesses and are...

Greetings, What will give the best connection over very long distances, miles? A router, ethernet bridge, or repeater? And why? I am going to use a dish antennas and transmit at 1 watt. Thanks

Hi I am in my final year of uni and for my project I am looking at doing it on a wireless sensor network for a car park application. The thing that I am currently stuck on is that I am trying to define my specifications for the project, in particular the hardware specs. My project is...

Hi eveyone. I really need your help for this project that I will be undertaking soon. But there is much I still don't understand and my lecturers aren't around to help. The setup that I'm envisioning is like this-- Source(230V 50hz) connects to signal generator, signal generator to 1st RLC...

This question might be better answered by someone in the mobile industry, but I guess I'll ask it here since it does involve physics. I understand that wireless spectrum for mobile data is finite, and will run out at some point. Out of curiosity, what are the implications of that exactly...

Hi, What can I use to transmit and receive data wirelessly from let's say 100K receiver every sec located at 30 Km Max. Every transmitter is sending 100 char every sec. Is this even possible?Regards,

can anyone help me regarding wireless modems.! i want to know that if i am having a wifi internet in my universitiy and i use wireless modems and then connect them to my computer using RJ45 cable then will i be able to use internet normally ? the main purpose of this question is that i want to...

why does nobody do it on a large scale? There's countless videos on the net of people making 'tesla' machines out of simple components and doing things like, I don't know, charging their phone - without any cell. I would think it was codswallap if not for the fact that all the videos seem to...

So, i have decided to make this wireless power transmission project and it is not through mutual induction but microwave transmission. I know , Microwave transmission ain't feasible and stuff and it has been discussed and all here, but i just want to make a small prototype , like a meter or...

My problem is that I am trying to, in this case, send a 50 KHz signal through an LC circuit to a receiving coil (very short distance by the way) so that the secondary coil can power an ipod. It's more so a first attempt and an experiment because the 50 KHz isn't a very powerful signal but I am...