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| Data
Communication and Other Functions |
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Low Voltage Power Carrier Communication: A Low Cost And Expandable
Solution
The main effort involved in the deployment
is the installation of the AMR system over each power transformation
subnet. By using low voltage power carrier communication solution,
the deployment and configuration of the system is simplified. Using
RU Reading Module makes the solution a zero engineering system. It
is easy to expand the system functions and increase the number of
meters.
＃ Carrier Uses Spectrum For Power Companies
The signal uses the bandwidth within 9 kHz
and 95 kHz. User is ensured to have no other interference in this
spectrum.
＃ Bi-directional Carrier Communications
Enable Implementation Of Arrearage Indication and Other Functions
There is an 'Arrearage Indication' button in
the application software on the host station. By clicking on this
button, the user is able to trigger arrearage indication on specific
RU / DCT via the DC. In fact, such function can be used for other
purposes like power cutoff warning and power bill notification.
＃ Reliable Security Measure To Protect The
System And User From Attack
Archnet AMR System has 3 types of security
and prevention facility to prevent user's existing accounting and
management systems from attack.
＃ Data Transmission Over Power Line Uses
Archnet's Proprietary Encryption Technology.
Tapping of Information From The Power Line
Is Impossible
＃ Host station and DC communicates mostly
use public telephone network. Our system employs advanced standard
encryption software for data transfer. In addition, the encryption
software can be upgraded, thus making it convenient for users to
change to suit future needs.
＃ The application software is designed with
2 levels password, i.e. operator level and supervisor level. System
operators are restricted to data collection, while supervisors are
allowed to modify the system parameters. Other personnel are not
allowed to operate the system.
＃ DC's large storage capacity reduces the
operating frequency of the host station.
The DC in Archnet AMR System centers on an
industrial controller. High capacity solid-state disk stores all
types of data, thus reduces the frequency of communicating with the
host station. This is especially important to practical application
because in a high capacity metering deployment, the host station is
not able to talk to every DC within a short period of time. This
means that the DC will have to store large amount of historical data
in order to reduce the load on the host station.
＃ Standardization of Data Form Used In DC
Ensures Compatibility With Other System.
It is inevitable that standardization will
take place as metering development progresses. One of the
consequences is the ability of a single or multiple host station to
manage subsystems from various suppliers. There is then a need for
the data format to be standardized. This is difficult to achieve
using simple dedicated device. Archnet AMR System uses industrial
controller as data processing unit for the DC to simplify the
approach to the standardization issue.
＃ Meter Change Support
The system can support the replacement of
meter by user. When an operating meter is replaced or when a new
meter is added, users only need to send the parameters of the new
and old meters to the DC to prevent the loss of power consumption
data. In fact, the system has the ability to automatically detect
additional or replaced meter. However, replacing an operating meter
will result in the loss of previous power consumption data that is
recorded on the original meter. Hence, users are reminded to be
cautious about it.
＃ Compatible To Water And Gas Meter Reading
As long as water and gas meter fulfill the
necessary conditions (e.g., pulse output), and with the permission
from system users, the system can be expanded to accommodate the
reading of water and gas meters. |
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