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LoRaWAN IoT Based Water Flow Meter Digital Water Pressure Meter Wireless Water Meter Monitoring
LoRaWAN IoT water meter is composed of water meter base meter, electric ball valve (valve control), magnetoresistive sensor, MCU, wireless communication module, control circuit and other components. Mechanical and electrical separation structure design. High capacity lithium sub battery pack is used for power supply. It provides long-term stable energy guarantee for data acquisition, valve control and wireless data transmission. LoRaWAN wireless communication module is adopted. Through the spread spectrum communication technology, the user water data is actively uploaded (once a day by default) to the LoRa WAN gateway. The gateway will upload to the system data service center through LTE 4G network or Ethernet. The system has the advantages of long communication distance, large capacity, fast and convenient installation, long service life, etc.
1. Split structure: The electronic unit is independent from the base table.
Flow characteristics | Comply with GB/T 778.1~3-2007 standard. Accuracy Class: Class 2 | ||
Nominal caliber (mm) | 15 | 20 | 25 |
Overload flow Q4(m3 /h) | 3.1 | 5.0 | 7.8 |
Commonly used flow Q3(m3 /h) | 2.5 | 4.0 | 6.3 |
Maximum allowable error | high area (Q2≤Q≤Q4) is ± 2%, the low area (Q1≤Q<Q2) is ± 5% |
R=Q3/Q1 | 100 (Dry Type) | Quiescent current | <10uA | |
Range ratio | Q2/Q1=1.6 Q4/Q3=1.25 | Communication current | Data collection and generating currents <50mA, and peak current <100mA | |
Pressure loss level | △ p≤0.063MPa | |||
Maximum allowable water pressure | ≤1.2MPa | Operating environment | 0~ +45℃ (cold water),0~95%RH 0~ +90℃ (hot water),0~95%RH | |
Temperature grade | Cold:T30 Hot:T90 | |||
Communication mode | LoRaWAN:CN470,RU864,IN865, EU868,US/AU915,KR920,AS923_ 1/2/3/4,Custom Channels | Oprating voltage | 2.7 ~ 3.6 V |
Water meters must be transported and stored under the original packaging conditions. Products shall not be severely impacted during transportation and unpacking, and are transported and stored in accordance with GB / T15464-1995 General Technical Conditions for Instrument Packaging. The products shall be stored in the warehouse and placed on the platform frame. The stacking height shall not exceed five layers. No corrosive gases shall be present in the stored environment.