Geographic Information System (GIS)
Saturday, January 5, 2008
C-map ocean view, Geographic Information System (GIS), Electronic Charts, ENC, ECDIS
Posted by
Nihal
at
1:32 PM
Labels: C-map ocean view, ECDIS, Electronic Charts, ENC, Geographic Information System (GIS)
Saturday, December 29, 2007
RFID Replacing Barcodes
The storage of data associated with tracking items will require many terabytes on all levels. Filtering and categorizing RFID data is needed in order to create useful information. It is likely that goods will be tracked preferably by the pallet using RFID tags, and at package level with Universal Product Code (UPC) or EAN from unique barcodes.
The unique identity in any case is a mandatory requirement for RFID tags, despite special choice of the numbering scheme. RFID tag data capacity is big enough that any tag will have a unique code, while current bar codes are limited to a single type code for all instances of a particular product. The uniqueness of RFID tags means that a product may be individually tracked as it moves from location to location, finally ending up in the consumer's hands. This may help companies to combat theft and other forms of product loss. Moreover, the tracing back of products is an important feature that gets well supported with RFID tags containing not just a unique identity of the tag but also the serial number of the object. This may help companies to cope with quality deficiencies and resulting recall campaigns, but also contributes to concern over post-sale tracking and profiling of consumers.
It has also been proposed to use RFID for POS store checkout to replace the cashier with an automatic system which needs no barcode scanning. However, this is not likely to be possible without a significant reduction in the cost of current tags and changes in the operational process around POS. There is some research taking place, however, this is some years from reaching fruition.
An FDA nominated task force came to the conclusion after studying the various technologies currently commercially available, which could meet the pedigree requirements. Amongst all technologies studied including bar coding, RFID seemed to be the most promising and the committee felt that the pedigree requirement could be met by easily leveraging something that is readily available
RFID Used in Pasports Standards for RFID passports are determined by the International Civil Aviation Organization (ICAO), and are contained in ICAO Document 9303, Part 1, Volumes 1 and 2 (6th edition, 2006). ICAO refers to the ISO 14443 RFID chips in e-passports as "contactless integrated circuits". ICAO standards provide for e-passports to be identifiable by a standard e-passport logo on the front cover.
In 2006, RFID tags were included in new US passports. The US produced 10 million passports in 2005, and it has been estimated that 13 million will be produced in 2006. The chips will store the same information that is printed within the passport and will also include a digital picture of the owner. The passports will incorporate a thin metal lining to make it more difficult for unauthorized readers to "skim" information when the passport is closed.
Posted by
Nihal
at
12:04 AM
Labels: RFID, RFID used in passports
Saturday, December 15, 2007
Motorola RAZR2 V9 Cell Phone

Full Specifications:
Motorola RAZR2 V9 Cell Phone Features
Cell Phone Type : Camera, Digital Player, Video
Cell Network Technology : WCDMA, GSM
Wireless Technology : Bluetooth
Synchronization : MS Outlook
Supported Memory : MicroSD
Megapixels : 2 Megapixels
Screen Size : 2.2 in.
Supported Media Format : MPEG-4, H.263 video and AMR audio
Key Functions : Digital Camera, Digital Player
Connector Types : USB, Mini-USB Type B
Messaging : POP3, IMAP4
Additional Features Pictbridge Direct Printing
Antenna Style : Integrated
Digital Camera : Yes
Included Functions digital camera / digital player
Network Technology : WCDMA (UMTS), GSM 850/900/1800/1900
Vibrating Alert : Yes
Digital Camera Features : Digital Zoom 8 X
Display Display Type : LCD
Display Resolution 240 x 320 Pixels
Display Color : Support Color
Power Managment Battery Technology Lithium Ion
General Product Info Height 4.1 in , Width 2.1 in, Depth 0.5 in
Also known as Motorola MOTORAZR2, Motorola CHANNELRAZR2V9
Manufacturer Part No. 2000341
UPC 723755936812
Dimension 4.1 in x 2.1 in x 0.5 in (HxWxD)
Posted by
Nihal
at
11:46 PM
WiFi Technology, 802.11, IEEE
Posted by
Nihal
at
12:37 AM
Labels: 802.11, IEEE, What is WiFi
RADAR
Monday, December 10, 2007
The GPS satellite system, Differential GPS
The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense. GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS.How it works
GPS satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. GPS receivers take this information and use triangulation to calculate the user's exact location. Essentially, the GPS receiver compares the time a signal was transmitted by a satellite with the time it was received. The time difference tells the GPS receiver how far away the satellite is. Now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map.
A GPS receiver must be locked on to the signal of at least three satellites to calculate a 2D position (latitude and longitude) and track movement. With four or more satellites in view, the receiver can determine the user's 3D position (latitude, longitude and altitude). Once the user's position has been determined, the GPS unit can calculate other information, such as speed, bearing, track, trip distance, distance to destination, sunrise and sunset time and more.
How accurate is GPS?
Today's GPS receivers are extremely accurate, thanks to their parallel multi-channel design. Garmin's 12 parallel channel receivers are quick to lock onto satellites when first turned on and they maintain strong locks, even in dense foliage or urban settings with tall buildings. Certain atmospheric factors and other sources of error can affect the accuracy of GPS receivers. Garmin® GPS receivers are accurate to within 15 meters on average.
In this section you will see how a simple concept can increase the accuracy of GPS to almost unbelievable limits.
Why we need Differential GPS :
How Differential GPS works :
Where to get Differential Corrections :
Other ways to work with Differential GPS :
Advanced Concepts :
Posted by
Nihal
at
5:39 PM
Labels: Differential GPS, GPS satellite system, How Accurate is GPS, How GPS Works
Sunday, December 9, 2007
Bluetooth Technology
Why is it called Bluetooth?Harald Bluetooth was king of Denmark in the late 900s. He managed to unite Denmark and part of Norway into a single kingdom then introduced Christianity into Denmark. He left a large monument, the Jelling rune stone, in memory of his parents. He was killed in 986 during a battle with his son, Svend Forkbeard. Choosing this name for the standard indicates how important companies from the Nordic region (nations including Denmark, Sweden, Norway and Finland) are to the communications industry, even if it says little about the way the technology works.
Detailed Product DescriptionDescription:1) Bluetooth headset is a wireless headset based on Bluetooth technology. 2) It is specially designed for different mobile phones, offering you the freedomto talk on your mobile phone without using your hands. 3) It provides clear sound quality for a range of 10 meters (between headset andmobile phone).Features: 1) You can adjust the ear hook. Appreciate the flexible, soft-touch headset thatWhy is it called Bluetooth?Harald Bluetooth was king of Denmark in the late 900s. He managed to unite Denmark and part of Norway into a single kingdom then introduced Christianity into Denmark. He left a large monument, the Jelling rune stone, in memory of his parents. He was killed in 986 during a battle with his son, Svend Forkbeard. Choosing this name for the standard indicates how important companies from the Nordic region (nations including Denmark, Sweden, Norway and Finland) are to the communications industry, even if it says little about the way the technology works.
delivers a comfortable fit on either ear 2) Fashionable appearance, smart model portable3) Plug-and-play and simple pairing for easy use4) Unique special software system and built-in DSP 5) Solutions for superior sound quality 6) Better interference resistance via the use of Bluetooth technology 7) Supports wireless audio streaming and headset / hands free application 8) Supports remote control feature 9) Listening to music and talking over wireless phones and computer10) Compatible with almost all Bluetooth mobile phones and PCsSpecifications:1) Bluetooth V1.2 compliant 2) Frequency: 2.4GHz~2.4835GHz ISM band 3) Transmitter power: 1mW 4) Output power: 0 dBm (class II)5) Long talk time: up to 6 hours6) Stand by time: up to 200 hours 7) Typical charging time: 1.5 to 2 hours8) Operation temperature: -10 to +45degreeC
Posted by
Nihal
at
1:00 AM
Labels: Bluetooth Function, Bluetooth Headset, What is Bluetooth
Sony Ericsson W580i Walkman White Phone (Unlocked)
Posted by
Nihal
at
12:27 AM
Labels: Cell Phone, Sony Ericsson, W580i
Friday, December 7, 2007
On Line Fuel Conductivity Sensor
The FSI JF-1 on-line fuel conductivity sensor provides highaccuracy,long-term monitoring of conductivity in fuels flowing through pipelines. The continuous readings alert operators to low levels of conductivity in flowing jet and diesel fuels. On-line conductivity measurement allows automated polymer addition to reducethe potential for static discharge while ensuring that fuel leaving the facility meets allowable FAA conductivity levels. Precision conductivity readings for chemical additive pacing can also save on high-cost chemicals or expensive off-loading of delivered product. The JF-1 conductivity sensor is constructed of two titanium coaxial electrode sensors, suitable for longterm immersion in corrosive fuels. It is fully retractable through a 3/4” NPT port for ease of maintenance. The retractable fitting allows an adjustable insertion depth to optimize positioning of the sensor in theflow. Sensor cables are contained in an FM-, CSA-, CENELEC- and UL-certified explosion-proof housing, ensuring safe operation in hazardous locations. Designed for operation on 4- to 8-inch- (10-to 20-cm) diameter pipes, the low-power JF-1 operates on loop-provided DC power and provides 4-20 mA output scaled from 0 to 500 pS/m.
Posted by
Nihal
at
9:13 PM
Labels: Fuel Conductivity Sensor
BIO-ICTD Profiler
The FSI Biological ICTD Profiler (Integrated Conductivity, Temperature and Depth) is a highspeed, state-of-the-art, integrated sensor and communication system tailored for upper-ocean biological/chemical oceanography.The Bio-ICTD combines the high-accuracy sensors and innovative self-calibrating electronics proven in the standard ICTD with the addition of a large number of standard interfaces and internal memory to yield a highly flexible upper-ocean sensor package. The ability to either directly record or transmit data up a single conductor logging cable allows the user to take data independent of shipboard constraints. The Bio-ICTDalso interfaces with a large variety of sensors, directly allowing the user to support a wide range.
Posted by
Nihal
at
9:04 PM



