Transcript Diapositiva 1 - ACORDE TECHNOLOGIES

Wireless Communication
3-Axis Accelerometer
Low Power
Tiny & Low Cost
Accelbee® is the tiny, low power, and low cost solution for wireless 3-Axis control. It is based on
the conjuction of a ±1.5g - 6g capacitive micromachined accelerometer, together with a true
System-On-Chip (SOC) solution for wireless sensor networking based on ZigBee®/IEEE 802.15.4,
working at 2.45 GHz. The chip includes a location detection hardware module that can be used
in so-called blind nodes (i.e. nodes with unknown location) to receive signals from nodes with
known location. Based on this, the location engine calculates an estimate of a blind node’s
position. This feature increases the performance of the whole system, combining the
information from the accelerometer, together with the position estimation from the location
engine, being the perfect solution for tracking applications.
Wireless Zigbee Solution
3-Axis Low-g Accelerometer
ZigBee is a suite of high level communication protocols
using small, low-power digital radios based on the IEEE
802.15.4-2003 standard for wireless personal area
networks (WPANs), up to 100 m indoor. The
technology defined by ZigBee is aimed to be simpler
and less expensive than other WPANs, such
as Bluetooth. ZigBee is targeted at radio-frequency
(RF) applications that require a low data rate, long
battery life, and secure networking.
The sensor is based on a ±1.5g - 6g capacitive
micromachined accelerometer, which features signal
conditioning, a 1-pole low pass filter, temperature
compensation and g-Select, which allows for the
selection among 4 sensitivities. Zero-g offset full scale
span and filter cut-off are factory set and require no
external devices. Includes a Sleep Mode that makes it
ideal for handheld battery powered electronics.
Accelerometer
Parameter
Acceleration (g)
Accelerometer output
Rolloff Frequency (Typ) (Hz)
Sample Exception Availability
Sensing Axis
Sensitivity (Typ) (mV/g)
Sleep Mode Reponse Time (Typ) (ms)
Special Features Acceleration
Start up response time (Typ) (ms)
Supply Voltage (Min) (V)
Supply Voltage (Max) (V)
Supply Voltage (Typ) (V)
Supply Voltage (Min-Max) (V)
Zero g Output (Typ) (V)
Wireless Module
Value
Parameter
±1.5g - 6g
Analog
150
N
XYZ
800
0.5
Self Test
Shock Detect
Tap Detect
1
2.2
3.6
3.3
2.2 to 3.6
1.6
Value
Flash/RAM
Frequency(Min)(MHz)
128kb/8kb
2400
Frequency(Max)(MHz)
Operating Voltage(Min)(V)
Operating Voltage(Max)(V)
Pin/Package
Data Rate(Max)(kbps)
Operating Temperature Range(°C)
2483.5
2
3.6
48VQFN
250
-40 to 85
Device Type
Frequency Range
TX Power(dBm)
RX Current (Lowest)(mA)
Sensitivity (Best)(dBm)
Wakeup Time (PD-->RX/TX)(uS)
SoC
2.4GHz
0
27
-92
645
System Performance and Characteristics
Parameter
Value
PC communication
Wireless Frequency
USB
2400 -2483.5 MHz
Operating Voltage(Max)(V)
Data Rate(Max)(kbps)
Operating Temperature Range(°C)
Size Wireless Node
Weignt Wireless Node (grams)
Data Rate(Max)(kbps)
3.0
250
-40 to 85
45 x 25 (CR2477 Battery)
70 x 45 (N95 2000 mAh Li-Ion Battery)
< 250
250
Operating Temperature Range(°C)
TX Power(dBm)
Max Current (mA)
-40 to 85
0
48
Main Applications
Navigation and Dead Reckoning: E-Compass Tilt Compensation
Robotics: Motion Sensing
Logostics: Asset tracking
Control: 3-Axis acceleration monitoring
Devices: Freefall Detection
Electronics: Freefall Detection, Anti-Theft, Image Stability, Text Scroll, Motion Dialing, E-Compass, Motion
Sensing, Text Scroll
ACORDE TECHNOLOGIES S.A.
PCTCAN – C/Albert Einstein, 6
39011, Santander (Cantabria) – SPAIN (EU)
Phone: +34 942 764400 Fax: +34 942 764404
www.acorde.com
[email protected]