Messages

61

General Programming / Re: 3d Tracking

« on: October 22, 2008, 09:15:21 pm »

Humm, damn people owning frequencies -.-
What i'll probably end up doing is writing the initial implementation using IR because my room is perfectly square save for the slight abnormalities of the door/closet door. Once I get that working, it should be no problem to modify it to work with some other form of wave.
I am at work and dont feel like doing math. Knowing the X, Y, Z of 4 points is enough to determine the X,Y,Z of a unknown based on time between echos right?
AE: If I were to be int he EXACT middle of the room, and the receivers were to be in the corners, and the room is perfectly cubed. All delays are == right?
Humm, how would the initial receiver, the first one to get the signal, know how much of a delay it has?
Ugh im thinking about this wrong. I think it should be obvious.. but I am missing it.

62

General Programming / Re: 3d Tracking

« on: October 22, 2008, 06:17:45 pm »

Eah theirs not really much to say that I haven't said. I need a way of getting a persons X, Y, and Z in a structure where standard GPSs won't work. AE: Anywhere the sky is not visible. If I could find a light, or radio wave, that goes through walls without loosing momentum, [or loosing so little that it has a vary minor effect on the accuracy] I could simply setup the 4 receivers.

63

General Programming / Re: 3d Tracking

« on: October 22, 2008, 04:41:40 pm »

Well, two ways that come to mind immediately (keeping mind that I didn't really read your ideas, so this will probably overlap)
1) Echolocation, or something similar -- the object/person is equipped with a directional beacon. But that won't get you a x, y, z very easily, especially if they turn, it's more useful for unknown navigation (that is, not running into a wall)
2) Triangulation -- have three separate units that can tell the distance to the object/person (either by radio, sound, throwing ping pong balls, or whatever). The farther apart the better. Based on the ping time from each base to the object, you can get the distance. Conceptually draw three spheres, and where all three come closest to meeting is where the object is. You'll need to know the x/y/z of each of the sensors, but not of the object itself. You also don't have to know what the shape of the room is, although this will break if the person goes behind a wall, or if the sensors bounce off walls

Have you considered GPS? It'll give you the x/y of an object within a meter (through triangulation, as it turns out), but you won't get a great z I don't think.

Your #1 was pretty much my #1
And your #2 was my 2 & 3. I have looked into GPS, but that doesn't work indoors.
I think my best bet would be Triangulation, using 4 nodes, so I can get a Z axis. But, I would need to solve the Walls/object interference.

64

General Programming / 3d Tracking

« on: October 22, 2008, 01:14:54 pm »

I am trying to figure out a way to track an object in a room.
This is a real life object in a real life room.
I have a few ideas I jsut thought of, and need input on.
1) IR Radar
Have 4~ IR Radar devices attached to the object {alright, person}. Have them constantly snagging data about the objects it's close to, preferably the walls. Few downfalls, battery usage will be ungodly immense. Object distortion. If a object gets in the way it could throw everything to fuck. Would require a detailed layout of the room. Wha5t happens if the IR beam hits the wall/object at an angle?

2) Stationary base receivers.
This is pretty much the same thing as the above, but instead of having the receiver on the object it will be in stationary receivers located around the room, using the same principals of GPS systems, except in reverse. Still a lot of battery usage as it is still broadcasting the signal, and there is an issue of things getting in the way again.

3) Stationary base receivers utilizing WiFi
The rig will already be WiFi enabled, it's a requirement for a different part of the system. Is there any way we can use the WiFi signal like the IR from above. Having stationary, know, receivers use the wifi signal for there timings? This has the benefit of saving battery {as its using a system that is already being used} and the ability to go through objects/walls.

I am mainly looking for intelligent ideas. Constructive criticism, etc.. Basically i'm trying to get a (X, Y, Z) point for an object, and if at all possible a heading. But i'm pretty sure that'll be simple using a different device.

65

Entertainment District / Re: ARE YOU A CYBER BULLY

« on: October 09, 2008, 09:38:37 pm »

I had to give myself a 12 on each of those
I just cant help it, people are so god damn stupid!

66

iago's forum / Re: To Calgary!

« on: September 13, 2008, 12:27:56 am »

0.o But what if someone kicks your server?
Have fun.

67

Entertainment District / MS We-Syp

« on: September 04, 2008, 04:10:54 pm »

A bit old, but found it while digging through my emails from my old IT teacher.
From: Richardson, Jim
Sent: Thursday, April 27, 2006 6:55 AM
Subject: You can appreciate the humor
I don't usually pass this stuff along, but this is so well done and to the point !
Worth your time.
 
Mr. R.

I don't know if you have seen this or not....but it is hilarious.....enjoy....and share the pain.

http://a3.v14853d.c14853.g.vm.akamaistream.net/5/3/14853/v003/1a1a1a72db3eb01f920167db4fb41745a9188ffd69d8399dcb2c97f865c62f5dc02f9ccbfc30689dd0ff6cdf44bc2c5bc83ba01888b7fc356ea7e0/9999_w.asf

68

Entertainment District / Re: truth about code review's

« on: August 31, 2008, 07:07:54 pm »

Agree, But its sad most the code I deal with write goes on the right.

I'm getting better.
And 90% of the WTF?s are because I don't comment. AT ALL.

69

Entertainment District / Re: truth about code review's

« on: August 27, 2008, 07:51:19 pm »

Agree, But its sad most the code I deal with goes on the right.

70

General Discussion / Re: The post your picture thread.

« on: August 08, 2008, 04:57:06 pm »

mm to lazy to find a real host/pic cuz im at work. But here you go the mystery is gone.
And Towelie.. you look the part. A bit to well 0.o

71

JavaOp Support Archive / Re: Socket Server Plugin

« on: July 09, 2008, 09:07:41 pm »

http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Thread.html

72

JavaOp Support Archive / Split from: Changes / bugfixes requested for beta43.

« on: June 28, 2008, 08:01:29 pm »

To be honest, isnt the only things of javaop you need the core.. and the command line configure? No plugins persay.
As for dependencies you really dont need ANY as it's java. All your deps are held in the jvm...
The few things you *might* need are image, which can be packaged into the plugin's jar.

Ugh, I need time, I have 2 major projects i'm working on, [RPG with friends, and JBLS re-write]

Anyways, since when is the core of JavaOp changing? Its a good solid layout as is, you have an interface, you implement it. simple as that.
Meh just thinking out loud about what I think would be a good idea. It does not need to be re-designed. You know... I could probably write a PLUGIN to do the svn control.....

73

JavaOp Support Archive / Split from: Changes / bugfixes requested for beta43.

« on: June 26, 2008, 06:36:17 pm »

* HdxBmx27 still doesn't understand why you do not simply SVN the code/jars and write the core to list/download plugins in realtime from the svn server.

Makes it a lot easier then having a general rev # could just have each plugin w/ its own version.Only problem with that is the non-x86 users who write plugins will still have to distribute them the old fashioned way.

74

Entertainment District / Re: very smart kid

« on: June 26, 2008, 06:30:27 pm »

Wow. This is older than the Internet.
Still funny, nonetheless.

how is that possible

Yes because society did not communicate before the all powerful interwebs!
Still funny, Only a 'innocent' child could answer the last 10 correctly

75

General Discussion / Re: Women watches TV for 42 years straight...

« on: June 18, 2008, 03:40:32 pm »

Been reported before I think.
But none the less. Thats awesome. Shows how much people cared about her...