Two Way Wireless Metering
Supports various utility metering devices: electricity, water, gas, heat and other;
Wireless network lets you avoid time consuming and costly cabling works. The Wireless SmartUtility Metering System (WSUMS) operates on ISM range, thus there is no need for frequency licenses.
It provides remote access to any metering device on the network via GSM or CDMA net:
Metered data sorting and performance analysis in the reports.
The system is simple to mount and very affordable in price. It takes few minutes to mount and start
up WSUMS.
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The system is simple to service and maintain. Software interface is very friendly and simple to use;
Unlimited number of metering channels make the System univeral to use at various projects;
Ability to extend the System - connect new metering devices during exploitation;
Accuracy. Wireless Smart Utility Metering System registers “day” and “night” tariffs of
utility consumption and other various tariffs as well.
The Kedah wireless utility metering infrastructure supports various metering devices including electricity, water, gas, heat and others. The wireless network is time and cost efficient. The system is simple to mount and maintain.
The Most Reliable of Wireless
Noise immunity. How to be sure that the System is protected from interferences from other radio devices?
The Answer:
1. Frequency Modulation - Home radio units that operates on the same frequency (433MHz) has amplitude modulation. Thus they can not affect the System with any interferences.
2. Noise immune coding with data alteration - Protects from wide band (pulse) interferences which might radiate such units as electric drill, electric shaver or hair dryer.
3. Control Record Controlling (CRC) - Assures accuracy and completion of transmitting data in case of such interferences and lightning.
4. Data scrambling - Protects the System and data from hacking, acts of vandalism or unauthorized access.
5. Data receipting - Transceiver repeats data transmission till the confirmation of receipt. It works like SMS when the sender receives the confirmation of SMS delivery.
6. Bidirectional channel - Means that every device of the System has the receiver and the transmitter in contrast to other wireless utility metering systems. Such feature assures control of the status of every device of the System at any time, e.g. the dispatcher can request the status of entire System or of the concrete device at particular apartment. Such feature also suppresses inter System interferences.
GSM-communicator is the unit that connects dispatcher (billing office) server to metering unit (electricity, water, heat or gas meters). It interconnects GSM/GPRS, 433 MHz channels and RS-485.
GSM-communicator has imbedded battery that keeps the unit in operating mode for not less then 24 hours in case of power failure. To receive and transmit data from and to meters, GSM-communicator support wireless interfaces as well as wired RS-485.
Radioadapters and repeaters - the hardware of local “bottom level” network. Radioadapters operate on ISM (free) 433 MHz frequency. Up to 31 meters can be connected to one radioadapter.
Radioadapters receive data from dispatching center (billing office) only via radio channel and transmit this data to metering device via RS-485. Radioadapter also receives confirmation on command execution from the metering device and transmit the confirmation back to dispatching center (billing office).
Repeaters support all the functions of Radioadapters and also can transmit the commands to other Repeaters and Radioadapters via radio channel.
About Manufacturer
Manufacturer of Wireless Smart Utility Metering System is Kedah Electronics Engineering LLC (KEE). The production area of KEE has 300 square meters and placed on Zelenorgad (Noth-West of Moscow). KEE has reliable partners either in Russia and South-East Asia and outsource printed boards and components to make final assembling. adjustments, software loading, tests and packaging. KEE provides technical, after sales and service support to its customers. Production of KEE is granted with ISO certificate, has own supply department, quality control, technical papers achieve and service center. Developing engineers permanently work with production on cost and lead time reduction.
Kedah Electronics Engineering LLC (KEE) was founded in year 2001 in Zelenograd - the silicon valley of Russia. KEE supplies to its customers high end wireless solutions for various applications.