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GENERAL CHARACTERISTICS
 
BASIC
CHARACTERISTICS
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Data is transferred by IC card between the management system
and meter(s) to realize prepayment function;
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Easy installation, friendly user interface, user manual bound
in system software;
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High density encryption of user card, strict encryption
confirmation between meter and user card. It prevents duplication of
user card by users;
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Transaction record can be tracked and printed in terms of
user name, time and area, for check-up of “zero transaction” users in
long time period.
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System operators are authorized by different levels of
access, given different jurisdictions (to prevent fraud).
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Transaction record can only be revised or deleted with
cryptograghic key (password).
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Database is supported periodically for safety in unexpected
accidents.
BASIC PROCEDURE FOR NEW SUBSCRIBERS
Open an
account at vending point.
Initialize
user card.
Pre-purchase.
Write
transaction data into user card.
TECHNICAL PARAMETERS
Communication ports: built-in RS232 serial interface, attached RS232
serial or standard parallel interface.
Baud
frequency of series: 1200-115200BPS
Transmission mode of parallel interface: whole byte and half byte
Operating
system: WIN 9X
CPU:
Celeron 300 or above
Memory:
min. 128M
SPECIAL FEATURES
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“One-card
for four-meter” system:
a single-phase watt-hour meter, a heat meter, a gas meter and a cold
water meter.
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“One-card
for six-meter” system:
a single-phase watt-hour meter, a heat meter, a gas meter, a cold water
meter, a hot water meter, and a recycled water meter.
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“One-card
for eight-meter” system:
two single-phase watt-hour meters, a heat meter, a gas meter, a cold
water meter, a hot water meter, a recycled water meter and a purified
water meter.
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Electricity-vending management system:
managing one or both of single-phase and three-phase watt-hour meters by
the same system, determined by customers with a system card. The system
card is also used for system registration. One or several managing cards
are provided to enhance jurisdiction management of the system and for
card recharging and deletion of pre-purchase record. Logical encryption
of system card and managing card ensures data security of the cards.
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Water
resource management system (heavy-duty water meter):
for water user of large size pipe. To operate the
system, one system card and one or several managing card(s) are needed.
Functions of the two cards are same as that for Electricity Vending
Management System.
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Multi-tariff water meter management system: it manages water consumption by quota. Extra consumption
above basic quota will be charged with higher step tariffs. Steps and
step tariffs are set according to policy of management department, from
one up to six steps and tariffs.
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Heat meter
management system:
the system
version V1.0 is for customers who installed prepayment heat meters. Heat
consumption is charged on basis of basic fee plus consumption charge.
Once a year heating management depart will collect a basic fee from each
user based on area to be heated (m2). Consumption charge is
based on heat volume user pre-purchased and heat tariff.
Total
annual heat expenditure of user =
(Rate of
basic fee * area heated)+ (heat tariff * heat volume pre-purchased)
Operation
interfaces of management system:
Technical specifications and
parameters are subject to change without notice. |
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