Chatter

Is there a device that will send a phone signal wirelessly across my house?



I want to use it for my Dish Network, but I dont have a phone jack next to my TV. I heard they make something that plugs into the phone jack, then has a remote sensor you plug into something else to transfer the signal.

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best technique to receive data from a wireless sensor into the computer?



Lets say i am measuring temperature. Should I use wireless network b/g to fetch the data from sensor. I think that will be too much work.

I think the best way is to create a proprietary system the sensor sends data using RF (with certain security), it is then picked by the receiver which is interfaced with the PC The benefit is, the sensor can be placed far from PC and it will not be that hard to implement.

What do you think is the best way to do it? Can i use PCI card? What is available in the market. Thanks

Holographic Memory Discs

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I’ve article “Cross-layer design in Sensor Networks”, is there a Journal or conf. , I could easy accept that?



I have a scientific article by title:”Cross-Layer design in sensor network for Qos Based Applications” which I wanna accept that in a Research-Science Journal Or Conference as soon as possible. I Sent that for elsevier’s ComCom & Comnet and after that, for 2 conferences But they have got some problems about the Paper or said that’s not suitable ,for them, in subject.

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Random variables & Probability distributions:What is the probability that the virus is detected by the sensor?



There is a method for detecting computer virus attacks on a network computer that are sent from a remote host. These viruses reach the network through requests for communication (e.g. e-mail) that are identifies as “packets”. For example, the “WORM flood” virus ties up the network computer by “flooding” the network with multiple packets. Security experts can detect this type of virus attacks if at least 1 packet is observed by a network sensor.

Assume that the probability of observing a single packet sent from a new virus is only 0.001. If the virus sends 150 packets to a network computer, what is the probability that the virus is detected by the sensor?

Holographic Memory Discs

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IPCAMWPT Pan/Tilt IP Network Camera its best?



4XEM IPCAMWPT 704 x 480 MAX Resolution RJ45 Pan/Tilt IP Network Camera

Model
Brand4XEM
ModelIPCAMWPT

Spec
Connection TypeRJ45
Ports10baseT or 100baseT Fast Ethernet auto negotiation

General I/O:
1 sensor input (max. 12V DC 50mA)
1 relay output (max. 24V DC 1A / 125V AC 0.5A)
Networking ProtocolTCP/IP, HTTP, SMTP, FTP, Telnet, NTP, DNS, DDNS, UPnP and DHCP
Pan/Tilt/Zoom4x Digital Zoom
Pan Range: ±135°, 10°~50°/sec
Tilt Range: 90°~-45°, 7°~25°/sec
Sensor1/4 inch color CCD
MAX Resolution704 x 480
Video Capture Resolution704×480, 352×240, 176×120
Frame RateUp to 30 frames per second at 176 x 120
Up to 30 frames per second at 352 x 240
Up to 10 frames per second at 704 x 480
Lens TypeBoard Lens with 4.3 mm focal length, F2.0
Shutter ControlElectronic Shutter Speed: 1/60 ~ 1/100,000 second NTSC
Automatic Electronic Shutter (AES): Supported
SoftwareIPNV16 Security and Remote Monitoring Software:
Remote configuration and control for up to 16 devices
Fast/Slow forward, replay and pause
Scheduled backup
Event Triggered, Scheduled and Manual recording
Instant search with preview windows
Hard disk quota warning
AVI format export
Operating Systems SupportedMicrosoft Windows 98SE/ME/2000/XP
PowerConsumption: Near 8.4 W
Output: 12V DC, 1.5A
Input: 100 ~ 240V AC, 50/60 Hz, 0.4A

Feature
FeaturesCompact TCP/IP network remote video/audio surveillance system
High performance and fully configurable MPEG4 compression engine
Built-in web server
Extension for sensor and alarm
Pre/Post alarm snapshots
Optimal synchronization of audio and video
Built-in camera
Adjustable image size, quality and bit-rate
Bundled with free recording and monitoring PC software
Built-in intelligent motion detection
Customizable homepage
Digital output control directly
Audio capability with built-in or external microphone
Motorized Pan and Tilt capability
Auto pan and auto patrol among selected preset locations

Manufacturer Warranty
Parts1 year limited
Labor1 year limited

networking.onetenmart.com/Products.aspx?id=10658 please more deteil about this Network Camera click it

more deteil

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Need advice on low cost wireless paging/emailing hardware. Need to send message when a sensor is triggered?



I’m trying to figure out feasibility on a wireless sensor and messaging system for remote sites. It would have to run from a battery and use a pager or cellular network (there would not be phone or electricity hookups). Basically I need to send an email or text message when a sensor is triggered. I need to keep costs low (both the network access and the hardware) for this to be feasible. It would only need to send about one message per month, but would need to be reliable. I have the sensor part worked out, but not the wireless communication part. Any recommendations of hardware/wireless networks/solutions would be great.

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