|
|
| Wireless AD-HOC Sensor Networks
|
The ELASTIC network
represents a major advance in the tactical effectiveness of close combat
military operations, while leverging the power of information
superiority to enhance the safety and security of troops on the ground.
ELASTIC is a network of ballistically deployable imaging nodes that can
be projected into high-risk environments, such as an urban combat zone,
or other inaccessible areas, and quickly provide the situational awareness
necessary to guide tactical decisions made by personnel at the scene.
Low cost sensor and network components, combined with standardized wireless
network protocols, make ELASTIC an ideal tool for single-use reconnaisance;
but it can easily be configured for long-term surveillance applications
as well.
ELASTIC is built upon the strengths of TechFinity and its University of
Wisconsin partner in robust image processing algorithm development, wireless
sensor networking and system level integration.
|
| Key Features and Benefits |
| . |
Low cost, efficient, and self-configuring wireless network
|
| . |
802.14.5 (Zigbee) low power wireless protocol
|
| . |
Low resolution imagers for fast image data transfer
|
| . |
Fast image processing algorithms that
provide panoramic view capabilities and object tracking within the field of view
|
| . |
Robust, customizable user interface and graphical display
|
| . |
Easily configured for one-time use or long-term surveillance
|
| |
|
 |
Sensors and
Wireless Networks: |
| |
ELASTIC is constructed using COTS
components for its sensors and wireless network. It uses low-cost
image sensors, the CMUcam2+, which provide a low resolution images
that can be transmitted over the wireless network via the Freescale
13192DSK RF radio. The communicates using the 802.14.5 (Zigbee)
wireless protocol for low power networks. Any number of sensor/radio
nodes can be deployed as a self-configuring network, and each wireless
node has a transmit/receive range of up to 1 km! The 13192DSK
supports on-chip debugging of the C/assembly firmware code. |
| |
|
| | |
CMUcam2+ Specs |
| | |
. |
87 x 143 pixels |
| | |
. |
24-bit color or 8-bit
monochrome
|
| | |
. |
Onboard frame buffering
and color tracking
|
| | |
. |
RS-232 Serial Interface
|
| | |
. |
6 - 12 V operation
|
|
 |
|
| | |
Freescale 13192DSK |
| | |
. |
2.4 GHz RF Data Modem |
| | |
. |
8-bit MCU
|
| | |
. |
3-axis Accelerometers
|
| | |
. |
RS-232 Serial Interface
|
| | |
. |
1.8 - 3.6 V operation
|
| | |
. |
4 low power modes
|
| | |
. |
802.14.5 (Zigbee)
|
| |
|
| |
|
| |
|
|
 |
|
Image Processing
Algorithms: |
| |
ELASTIC incorporates a collection of robust
image processing algorithms from TechFinity's image processing algoriothm
library. The panoramic view algorithm can stitch together multiple camera
views that overlap one another creating a single, large focal plane from
the individual imagers on the network. The algorithm incorporates local
image registration to fine-tune the overlap in the final, panoramic image.
ELASTIC can also perform object tracking within the field of view of
each camera on the network. |
| |
|
| |
 |
| |
(Combined View) |
| |
|
|
|
| |
|
|
TechFinity
Image Processing System (TIPS) Application Framework: |
| |
The sensor/network and algorithm
interfaces are built upon Techfinity's Image Processing System
(TIPS) application framework for robust and customizable user
interface configuration and graphical displays. The generic
TIPS framework is easily customized for different applications
or products requiring image processing on any type of image
data source. New sensor platforms and algorithms can be easily
'plugged in' to the existing framework by following simple
interface design requirements. |
| |
|
| |
 |
| |
|
 |
|
|
|
