Three Phase Multi Tariff Lora Smart Meter Remote Meter Reading in LoraWan Technology

Specification:

Main Functions:
Precise metering of active electric energy
Remote reading of real-time electric quantity through low-voltage line
Remote switching-in and load control, indicating of power-up or power-off
Mutual auto relay
LCD, power failure flashing
Freezing of electric quantity, daily frozen electric quantity kept for 7 days; Daily hour total active power meter code stored for 3 days;
Multi-rate and stepped electric energy supported
Three modes switching supported: Normal, stepped rate, time shared rate
Alarming of loss of phase, current loss, and overloaded power off, overpower load value settable
Event recording, recording of programming, timing, tripping, dumping, and uncapping events
IR communication, RS485 communication, and power carrier communication supported
IR and power line carrier programming available

Dimension(218mm×145mm×72mm):
(1) The electric meter should be installed indoors and installed on the wall or in the meter box. The electric meter should be basically vertical when installing.

(2) The voltage to be connected should meet the rated operating voltage, and the current should not exceed the maximum rated current.

(3) In the case of power failure, the wiring should be strictly as shown in the wiring diagram.

(4) The electric meter is fixed on the meter box with three screws.

Working Principle

Measured AC voltage and current have been sampled and transported to professional metering chip, after digital processing, they have been changed to the pulse signal, which in direct proportion to active power, and then sent to microprocessor. Microprocessor would accumulate the pulse signal according to the tariff, then get total power and tariff power and put them in register. At the same time, the microprocessor finishes the function of display and changeover with external messages. Please take attention to the Figure 1

LoRaWAN communication interface:
Using LoRaWAN communication for meter reading and parameter setting. When meter reading, remote meter data transmission software provided by our company can be used for meter reading
and parameter setting. It is also possible to design a software and hardware system that fully
complies with the protocol requirements for meter reading and parameter setting according to the
power industry standard DL/T 645-2007 (supporting part of the communication protocol). Please take attention to the followig points when handle meter reading and parameter setting:
a. Parameter setting, please just setting items which refers to the certain meter
b. LoRaWAN active upload data format:

Carriage and storage:
Our products should be packaged well when being transported. And the products should not be shaken or hit when being transported and unpacked. The carriage and storage should correspond with GB/T15464-1995 "General packing technical conditions of instruments and meters" Inventory and storage should be put on the bracket under the original package, and the stacked height can’t exceed 5 layers. The storage place will be clean and the environment temperature will not more than from -40℃ to +70℃, relative humidity not more than 95% and without corrosive gas and mildew in the air.

Introduction：

Wuhan Radarking Electronics Corp. is a modern share enterprises which focusing on the smart Internet of things(IOT) /smart grid energy consumption sensor/intelligent electric safety integrated solution. It established in 2002（former name: Wuhan Radarking Co.,Ltd.）and went public on January 27, 2015 with the stock abbreviation RADARKING and stock number 831722. It owns the independent R&D center and factory which is the key recommended high-tech enterprises in Wuhan city, Hubei Province.

It mainly R&D, manufacture and sell the integrated solution of smart Internet of things(IOT) energy consumption sensor/smart grid energy consumption sensor/energy consumption information acquisition and transmission(Collector, Concentrator, Communication Module), smart electric meter, smart water meter, “RDK” energy Internet of Things(IOT) intelligent energy safety integrated solution, digital campus energy consumption acquisition(meter reading) charging management integrated solution, 4-in-1 Meter energy consumption acquisition(meter reading) charging management integrated solution, 4-in-1 Meter/All-in-One Card cloud computing total charging management integrated solution, energy consumption monitoring and analysis integrated solution, mobile phone APP(Energy Consumption, Fast E Top Up).

Principle:

It pursues “Military Academy, Military Morality, Character, Integrity”business philosophy. According to the “ Success once at a time, Advance and reliable, Customer satisfaction, Continuous improvement” quality policy, produce the military high standard products depend on the talent and technology advantages. By military character, do the man first and then work, and provide the high quality products and favorable service to the domestic and overseas clients. With the high quality products and favorable service, it has won the good reputation from clients and won the large market share. (The group users has more than 3000).

Management：

We have a high efficiency, innovative, serious management team, and the factory has already passed ISO9001-2008 QMS, and ISO14001-2004 environment management system. It has not any batch quality problem since establishment. AQSIQ( State Quality Inspection Administration) take the spot checking of our electric meter during 2009-2016, and all the meter passed the inspection. Fully proved that the production is according to our quality management system, and the product quality is stable and reliable.

Oversea Market：

Quality product performance and good reputation, our products are not only successful sales in China, but also have been exported to more than 100 countries and regions in the world, including: Mongolia, Malaysia, Bangladesh, Germany, Italy, Russia, Brazil , India, the United Arab Emirates, Saudi Arabia and other countries, the products are subject to a great welcome and praise.