Portable lcd screen

kingkongo · 7 May 2006 at 15:14

Hello

i need some help on a particular subject which im not familiar with and dont really know where to start.

The setup described below is not for a car but for a moving vehicle.

i need to power a 19inch lcd screen( an actual screen or a laptop), but not from the mains. it has to be portable so that means, it would have to work with maybe a rechargable battery pack, and then be charged when the battery runs out. i need as much running time as possible. if approximately 10 hours is possible off one charge then that would be perfect.

does anybody know if this is possible and if so can they provide me with some information or any links to products that i could purchase.

if it will not work then could you suggest a set up? maybe using solar panels or using a dynamo to power the lcd screen.

if you could provide me with details specifications such as lcd power consumption, battery pack run time etc... that would be most helpful

thank you for your help.

kingkongo · 7 May 2006 at 16:17

i havent actually chosen a specific screen.i need one, any one that is about 17-19 inches.

the screen is to be mounted on a trolley that uses the screen as a form of advertising.

what is UPS?

also i was looking into inductive charging, the was a toothbrush works. would that be possible.

also a stupid question but how big is a car battery?

could somebody provide me with possible options as i am not familiar with electronics.

thanks

kingkongo · 8 May 2006 at 00:22

whre can i find detailed information on UPSs? how long will a ups keep a 17in laptop or 17in lcd screen powered for?

if i used UPSs, do you know if it would be possible to charge a line of trolleys, each with a ups, while they are nested at their bay? so if they all connected to each other and ultimately one connected to the mains, could they all charge? or would each one hav 2 b connected to a mains to charge?

do you know how much power a laptop requires compared to a lcd screen?

i think that a laptop would be a better option as it would need to have wireless to receive advertisements. that way all the trolleys could receive the adverts. also i would want a pda connected to the trolley for gps and other little user needs.

any help is much appreciated, and thanks for the help so far, it has been very helpful.

kingkongo · 8 May 2006 at 16:59

do u know much about inductive charging?
or using dynamos?

would they be able to power the laptops?

what if i didnt use the ups, but charged the laptop batteries directly? could i nest and connect them all and have them all charging at the same time?

what about using inductive charging and having certain areas charge the trolley without any contact? is this possible?

kingkongo · 8 May 2006 at 18:47

sorry i shouldve explained properly first of all.

it is for an airport trolley.im designing a trolley that is used in the duty free areas of airports. the screen is to be used for advertising. i would want the trolley to have a decent sized lcd with wireless so that adverts can be sent to the lcd screen. it needs to be powered using some device that im looking for! i cant buy lots of batteries and just change them when one runs out as there will be a few thousand trolleys.

kingkongo · 9 May 2006 at 19:17

im a student doing a product design course, and i have to design a trolley which uses a screen to advertise.

im have very basic knowledge on electronics.

i need a screen of about 17inches, wifi, and a pda. the screen wil display adverts, the wifi will be used to receive adverts, and the pda will be used as a tracking, navigation and map device.

i was thinking of using an inductive generator and a battery, but im not sure if that will produce enough power. i dont know how to calculate it 2 b honest. also the power device needs to be compact as it is to be put in a fairly small airport shopping trolley.

i was also thinking about the way a toothbrush charges. does anybody know if thats possible. then i could charge the trolleys by installing the charges into the floor, and have them charging constantly.

is it possible to just use the laptop battery and connect it straight to the power source, and extend the wires so that there are 2 connectors on the trolley. one at the front and one at the back so they all connect to each other. this way they could nest and charge in the bay.

is it possible to use a laptop battery to power a monitor? so i wouldnt use the laptop. i could use a pda with wifi connected to a monitor. is there a way of just connecting the battery to the monitor and pda to power it?

what is the longest battery life available for a laptop?

what is a trickle charger and how does it work?
any help would b appreciated, thanks