In the ever blooming world of wireless technologies here comes another one and given to its striking features it is bound to stay long. Dash7 is a wireless network technology used in sensing. It has lower power consumption and a larger coverage of distance than competing technologies. This, perhaps, led to its usage as a standard in RFID technology.
Generally Radio Frequency Identification technology is used for locating and tracking objects in a variety of applications. It consists of a tag and a reader. There are two types of tags, active and passive. Passive tags receive their energy from the readers, when readers emit electromagnetic radiations to detect the tag. While active tags have their own small batteries. Dash7 are active RFID tagswith small batteries in them. This feature gives them a long life of many years. The distance covered by Dash7 is in hundreds of meters to some kilometers which left behind its wireless competitors Zigbee and Bluetooth. Moreover Dash7 operates on a license free 433 MHZ ISM (Industrial, Scientific and Medical) band. The specific use of this band is because of its penetration capability in concrete walls and metal. As we know that in case of Zigbee and Bluetooth, 2.4 GHZ band is used and it does not perform well in environment with lot of metal.
Dash7 has an edge over this wireless technology as it can work in an environment by penetrating through the concrete and metal thus giving a larger read distance. The International Organization for Standards (ISO) approved the ISO 18000-7 standard in 2004. Given to its verbosity, it was appealingly named Dash7. Like Wi-Fi is named for the IEEE 802.11.
Features
With efficient distance coverage and power consumption, Dash7 comes with acceptable data rates of up to 200kb/s. Dash7 works great with moving objects without delays. While reading the data from the tag, the reader does not need to be very close to the tag. This is an advantage of Dash7 which other RFID tags don’t possess. Tag to tag communication is also possible with the help of Dash7. Dash7 – a wireless sensor network has a lot of potential in the RFID technology. The data transferred needs to be bursty excluding audio and video forms of data. A 256 bytes packet size is acceptable. Dash7 devices don’t need frequent handshaking or management by base stations. But the distance coverage and data rates are compensated in Dash7. The infrastructure required for Dash7 technology and its cost is far less compared to other wireless technologies like Zigbee and Bluetooth.
How DASH7 came into existence?
Savi technology was working on the RFID tags for a long time. These tags were used in tracking the military shipments. It was the only supplier of active RFID tags for US Department of Defense (DoD). But for multiple supplier support, the DoD forced Savi to open the doors for its technology. In 2006 Savi licensed its patent of Dash7 and the technology was shared among others to manufacture more products.
Dash7 alliance
Wars don’t last forever. The introduction of Dash7 in commercial sector would be more beneficent opening the doors for expansion of Dash7. So in 2009 Savi and many other companies formed the Dash7 alliance. Many companies joined this alliance accepting program under Savi’s intellectual property (IP) licensing. This alliance looks after the development of ISO 18000-7 and promotes its interoperability. It is a non-profit organization.
Enhancing the features of ISO 18000-7, a more advanced version called Dash7 mode 2 was launched in 2011. This also grabbed interest of the semiconductor companies. In 2009 the Texas Instruments joined the Dash7 alliance and is manufacturing hardware compatible with Dash7. Many other silicon vendors are also developing Dash7 enabled hardware. From this version any Dash7 application can be developed on microcontrollers. Mode 2 is built with certain improvement in the existing features. Dash7 Mode 2 doesn’t require line of sight transmission and attenuation of signals is also less. DASH7 alliance standardized Mode 2 as an open source in March 2012. An open source means that anyone in the world could use this technology in their products and further push the innovations leading to a substantial growth. This facilitated the growth of products based on the ISO 18000-7 standard.
Applications
Dash7 is used in applications where tracking of objects based on locations plays a vital role.Applications like logistics, defense, smart parking, and access control are some of them. Advanced sensing featuresmixed with wireless technology using Dash7 will be the new face of RFID. For example if some fresh goods are being transmitted in the containers then their temperature can be tracked and reported.
In 2012, Haystack technologies developed a tag based in the open source ISO 18000-7 standard to find the missing pets. The tag can be attached to the pets and an adapter could read the data from the tag. This adapter can be plugged to smart phones. It led to the introduction of Dash7 in smartphones which will make our smartphones really smart by enabling RFID in them. Not only pets but other things can also be tracked by using the Dash7 technology. Also a more sophisticated use of this technology could be done in markets where it tracks customer behavior of purchasing goods and reports to the main server. This will help the company in providing schemes for customers based on their needs reducing human efforts.
Different vendors have variations in the RFID reader though using the same Dash7 standard. The alliance announced the establishment of Dash7 network access (DNA) wherein a software application can communicate with any Dash7 devices (readers) from different suppliers. A separate interface for each of the devices won’t be needed.
Thus Dash7- an open standard for RFID promises many technological advancements and a huge number of applications.
Generally Radio Frequency Identification technology is used for locating and tracking objects in a variety of applications. It consists of a tag and a reader. There are two types of tags, active and passive. Passive tags receive their energy from the readers, when readers emit electromagnetic radiations to detect the tag. While active tags have their own small batteries. Dash7 are active RFID tagswith small batteries in them. This feature gives them a long life of many years. The distance covered by Dash7 is in hundreds of meters to some kilometers which left behind its wireless competitors Zigbee and Bluetooth. Moreover Dash7 operates on a license free 433 MHZ ISM (Industrial, Scientific and Medical) band. The specific use of this band is because of its penetration capability in concrete walls and metal. As we know that in case of Zigbee and Bluetooth, 2.4 GHZ band is used and it does not perform well in environment with lot of metal.
Dash7 has an edge over this wireless technology as it can work in an environment by penetrating through the concrete and metal thus giving a larger read distance. The International Organization for Standards (ISO) approved the ISO 18000-7 standard in 2004. Given to its verbosity, it was appealingly named Dash7. Like Wi-Fi is named for the IEEE 802.11.
Features
With efficient distance coverage and power consumption, Dash7 comes with acceptable data rates of up to 200kb/s. Dash7 works great with moving objects without delays. While reading the data from the tag, the reader does not need to be very close to the tag. This is an advantage of Dash7 which other RFID tags don’t possess. Tag to tag communication is also possible with the help of Dash7. Dash7 – a wireless sensor network has a lot of potential in the RFID technology. The data transferred needs to be bursty excluding audio and video forms of data. A 256 bytes packet size is acceptable. Dash7 devices don’t need frequent handshaking or management by base stations. But the distance coverage and data rates are compensated in Dash7. The infrastructure required for Dash7 technology and its cost is far less compared to other wireless technologies like Zigbee and Bluetooth.
How DASH7 came into existence?
Savi technology was working on the RFID tags for a long time. These tags were used in tracking the military shipments. It was the only supplier of active RFID tags for US Department of Defense (DoD). But for multiple supplier support, the DoD forced Savi to open the doors for its technology. In 2006 Savi licensed its patent of Dash7 and the technology was shared among others to manufacture more products.
Dash7 alliance
Wars don’t last forever. The introduction of Dash7 in commercial sector would be more beneficent opening the doors for expansion of Dash7. So in 2009 Savi and many other companies formed the Dash7 alliance. Many companies joined this alliance accepting program under Savi’s intellectual property (IP) licensing. This alliance looks after the development of ISO 18000-7 and promotes its interoperability. It is a non-profit organization.
Enhancing the features of ISO 18000-7, a more advanced version called Dash7 mode 2 was launched in 2011. This also grabbed interest of the semiconductor companies. In 2009 the Texas Instruments joined the Dash7 alliance and is manufacturing hardware compatible with Dash7. Many other silicon vendors are also developing Dash7 enabled hardware. From this version any Dash7 application can be developed on microcontrollers. Mode 2 is built with certain improvement in the existing features. Dash7 Mode 2 doesn’t require line of sight transmission and attenuation of signals is also less. DASH7 alliance standardized Mode 2 as an open source in March 2012. An open source means that anyone in the world could use this technology in their products and further push the innovations leading to a substantial growth. This facilitated the growth of products based on the ISO 18000-7 standard.
Applications
Dash7 is used in applications where tracking of objects based on locations plays a vital role.Applications like logistics, defense, smart parking, and access control are some of them. Advanced sensing featuresmixed with wireless technology using Dash7 will be the new face of RFID. For example if some fresh goods are being transmitted in the containers then their temperature can be tracked and reported.
In 2012, Haystack technologies developed a tag based in the open source ISO 18000-7 standard to find the missing pets. The tag can be attached to the pets and an adapter could read the data from the tag. This adapter can be plugged to smart phones. It led to the introduction of Dash7 in smartphones which will make our smartphones really smart by enabling RFID in them. Not only pets but other things can also be tracked by using the Dash7 technology. Also a more sophisticated use of this technology could be done in markets where it tracks customer behavior of purchasing goods and reports to the main server. This will help the company in providing schemes for customers based on their needs reducing human efforts.
Different vendors have variations in the RFID reader though using the same Dash7 standard. The alliance announced the establishment of Dash7 network access (DNA) wherein a software application can communicate with any Dash7 devices (readers) from different suppliers. A separate interface for each of the devices won’t be needed.
Thus Dash7- an open standard for RFID promises many technological advancements and a huge number of applications.
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