1

A Survey on the Guinness Book of Sensors

Advanced Topics in Wireless Networks

Omar Amarin4/7/2008

2

• Smallest Sensors Epson, eCAM, Kionix, Samsung

• Largest Deployment of Sensors Department of Primary Industries (DPI)

• Longest Lifetime Sensors Transducer Technology, Inc.

2

3

Smallest Sensors

1. Epson (uFR-II)

Advanced Model of World's Smallest Flying Microrobot from Epson (August 2004)

• Micromechatronics technology• The world's new lightest and most advanced

microrobot• The uFR-II is only the latest chapter in an Epson

success story that began with Monsieur, a microrobot that was listed in the Guinness Book of Records as the world's smallest microrobot.

3

4

• Problem: Limited Range

• Solution: Fully wireless operation paired with independent flight capability. The world's smallest and lightest sensor.

• Wireless features - Epson's own sensor

(world's smallest and lightest)

4

5

• The XV-3500CB,

Characteristics: Item Specification Unit

Operating Voltage

2.7 to 3.3 V

Output in Stationary State

1.35 V

Detection Range

100 deg./sec

Sensitivity 0.67 mV/deg./sec

Linearity + - 5 %FS

Package Size 5.0*3.2*1.3 mm

• Features of the newly developed XV-3500CB Sensor:

1. Subminiature SMD

2. Outstanding stability

3. Sleep mode

World's Smallest Gyro-Sensor (December 2004)

4. Airtight structure

5

6

• constructed by plugging a VGA video camera to the Eco node.

• Eco is an ultra-compact, high-bandwidth wireless sensor node developed by authors. It measures only 13mm(L) × 11mm(W) × 7mm(H) and weights 2 grams.

2. eCAM: Ultra Compact, High Data-Rate Wireless Sensor Node with a Miniature Camera

Authors: Chulsung Park and Pai H. ChouCenter for Embedded Computing System, University of California, Irvine.

• Great Power Consumption• Other Advantages

6

7

• Some Properties:

• Ultra-Compact Form Factor: 13x11x7mm, 2grams

• 2.4GHz Radio, 128 Channels, 1Mbps

• On-Board 3-Axis Accelerometer, Temperature Sensor,

• Optical Sensor• Low Power Consumption• 40mAh Li-Polymer

Rechargeable Battery, Continuous Listening: about 4 hours

• Flex-PCB Expansion Port: Analog/Digital I/O, SPI, UART, I2C, and Interrupts,

7

8

• The device, the KXPS5, is just 0.9 millimeters thick, The sensor measures acceleration and is

primarily used for free-fall detection in hard drives.

• The KXPS5 family of products was specifically engineered to have a very small form factor so that they can be incorporated directly into the hard disk drive.

• use specifically in the hard drives of mobile-electronic devices such as cell phones and iPods.

3. Kionix, KXPS5, June 30, 2006

8

9

• How it works

• Other Uses: computer and video gaming, global positioning systems, sports diagnostics, and vehicle-stability applications.

9

10

4. Samsung, 8.4MP CIS, September 8th, 2005

Sensor Size: 9×6.5 mmPower consumption: 10 mW.

More importantly, the sensor’s output is not an analog signal but a digital signal.

Micro unit (MCU)”

Intelligent function

10

11

• New custom printed circuit boards (PCBs):

• Leads to: (Risks)

1. Extra hardware development effort2. Risking introduction of new errors

Ideas to Help in the Future

11

12

• Nectarine orchard covered with 47 nodes, 273 sensors.

• Sensors include soil moisture, soil and air temperature, canopy temperature, humidity, leaf wetness, trunk diameter, wind speed and direction, solar radiation and GPS co-ordinates.

Largest Deployment of Sensors

World's Largest Agricultural Wireless Sensor Network

Department of Primary Industries (DPI)

12

13

• Problems: • 1. Interruptions • 2. Rainfall

• Good Ideas: They have started to monitor the sensor network using alerts that are automatically transmitted to a mobile phone by SMS.

13

14

• High performance

• No recharge is required for more than a year.

• “Pocket CO”

Longest Lifetime SensorsTransducer Technology, Inc.

D6F-P MEMS-based D6F-P air flow sensor

14

15

• Problems & Enhancements.

Algorithm

Up to Five times better lifetime

15

16

THANK YOU !