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IoT Prepaid AMI Smart Water Meter is a new generation smart water meter solution that integrates with GPRS/NB-IoT/LoRaWAN etc. IoT network communication technology to realize Prepayment, Remote Automatic Meter Data Collection and Valve Control etc. functions.
Customers can purchase water through multiple methods (like Vending Points, Agency, Customer Selfservice, etc.), and the Centralized System can automatically send the recharge Token to the specific meters through GPRS/NB-IoT/LoRaWAN network to recharge remotely without any manual token input operation via keypad. Meanwhile, all the corresponding meter data could be automatically uploaded to Meter Data Management System (MDM) everyday like Hourly Consumption Data Record, Meter status etc. for data statistics and analysis.
STS Prepaid Working Mode, Remote Meter Recharge via GPRS/NB-IoT/LoRaWAN
Real Time Clock (RTC) function, regular Remote RTC Calibration to ensure clock accuracy for basic meter functions,
such as hourly/monthly frozen data
Daily Automatic Meter Data Upload，such as Hourly Consumption Data, Battery Voltage, Meter Running Status,
Event Record etc.
Remote Meter Parameter Checking & Valve Control
Meter Illegal Connection Detection & Alarm (Optional)
Water Leakage Detection & Alarm (Optional)
10 years' Hourly/Monthly Consumption Data Record
Prepaid and Postpaid Working Mode switchable
Touchable Button for convenient Data Query & Data Upload
Easy SIM card insert and replace
| Items | Parameters |
|---|---|
| Nominal Diameter (DN mm) | 15, 20, 25 |
| Q3 (m³/h) | 2.5, 4.0, 4.0 |
| R (Q3/Q1) | 100/160 |
| Working Temperature | T30/T50 |
| Max. Working Pressure (MPa) | 1.0/1.6 |
| Pulse Equivalent (m³) | 0.1/0.01 (optional) |
| Class of Upstream Flow Field Sensitivity | U10 |
| Class of Downstream Flow Field Sensitivity | D5 |
| Protective Level | IP68 |
| Permissible Error |
Q2 ≤ Q < Q4: ±2% Q1 ≤ Q < Q2: ±5% |
| Communication Method |
GPRS/NB-IoT/LoRaWAN Communication Reserved Infrared Communication |
| Communication Distance |
Depends on local GPRS/NB-IoT/LoRaWAN Communication Station coverage ≤ 2m by Infrared Communication without obstacle |
| Protection Level | IP68 |
| Power Supply | Lithium battery DC3.6V, replaceable |
| Battery Lifespan | ≥ 6 years |
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The Split Type STS Prepaid Water Meter is composed of two main parts: the Prepaid Water Meter, available in either Velocity or Volumetric types, both of which comply with the STS standard IEC 62055-41, 51. The solution includes a Customer Interface Unit (CIU) with RF Wireless Communication and a Dot Matrix LCD that supports local languages for remote meter recharging and data queries. Additionally, it offers Walk-by AMR (Automatic Meter Reading) functionality and a fixed Data Concentrator Unit (DCU) for AMI (Advanced Metering Infrastructure) to enable remote meter data collection.
STS Prepaid Working Mode, Meter Recharge & Data Query via CIU
Multiple Water Purchase Ways available (Vending points, Vendor, Customer self-service）
AMR Functions:
Meter Installation Location (GIS) info. Collection
Meter Reading Task Download from LAPIS Server
Meter reading path optimization
Automatic Meter Data Collection and upload to Laison Meter Data Management System (MDM)
Remote Meter Parameter Checking & Valve Control
AMI Functions:
Automatic Meter Data Upload like Hourly/Monthly Consumption Data Record, Battery Voltage, Meter Alarm Event etc.
Automatic Real Time Clock (RTC) Calibration
Remote Meter Parameter Checking & Valve Control
10 years historical meter data storage
Prepaid and Postpaid Working Mode switchable
| Items | Parameters |
|---|---|
| Nominal Diameter (DN mm) | 15, 20, 25 |
| Q3 (m³/h) | 2.5, 4.0, 4.0 |
| R (Q3/Q1) | 100/160 |
| Working Temperature | T30/T50 |
| Working Pressure (MPa) | 1.0/1.6 |
| Pulse Equivalent (m³) | 0.1/0.01 (optional) |
| Class of Upstream Flow Field Sensitivity | U10 |
| Class of Downstream Flow Field Sensitivity | D5 |
| Protection Level | IP68 |
| Permissible Error |
Q2 ≤ Q < Q4: ±2% Q1 ≤ Q < Q2: ±5% |
| Communication Method |
LoRa RF Wireless Communication Reserved Infrared Communication |
| Frequency | 470-495MHz (default), 863-879MHz (optional) |
| Communication Distance |
≤ 1km by LoRa RF Wireless Communication ≤ 2m by Infrared Communication without obstacle |
| Case Material | Brass / Plastic Body |
| Power Supply | Lithium battery DC3.6V, replaceable |
| Battery Lifespan | ≥ 6 years |
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Data Concentrator Unit (Hereafter referred as DCU) is compatible with all series of LAISON Smart Water Meter with LoRa Communication for AMI (Advanced Metering Infrastructure) solution which aims to Automatically & Remotely collect Meters' Data.
The Data Concentrator Unit (DCU) could communicate with meter via LoRa RF Wireless Com. and the MDM system via GPRS, thus the Meters' data could be uploaded to Center System automatically everyday, for Customer Monitor, Consumption Data Analyzing, Possible Leakage and Tamper Situation Detection etc.
Automatic Meter Data Collection like Hourly/Monthly Consumption Data Record,
Battery Voltage, Meter Alarm Event etc.
Automatic Real Time Clock (RTC) Calibration
Remote Meter Parameter Checking & Valve Control
Remote Real Time Communication with Meter
Adopt POE power supply, convenient for on-site debugging and maintenance
Support outdoor installation with protection level of IP67
Adopt high gain antenna with wide signal transmission range
| Items | Parameters |
|---|---|
| Working Temperature | -40℃ ~ 80℃ |
| Working Humidity | 5% ~ 95% (No Condensation) |
| Power Supply | AC 100-240V 50/60Hz |
| Power Consumption | < 5W |
| Comm. Upstream (DCU -> MDM System) | GPRS |
| Comm. Downstream (DCU -> Meter) | LoRa RF Wireless |
| RF Comm. Distance |
≤ 1Km in Residential Area ≤ 5Km Line of View |
| RF Comm. Frequency |
470-495MHz (default), 863-879MHz (optional) |
| GPRS Comm. Frequency | 850/900/1800/1900MHz |
| Case Material | Cast Aluminum |
AMI (Advanced Metering Infrastructure) Solution
By deploying the AMI system, the remote meter data, including Hourly/Monthly Consumption Data, Meter Battery Voltage, Run Status, etc. can be automatically uploaded to LAISON MDM System through GPRS/NBIoT network.
Walk by AMR (Automatic Meter Reading) Solution
By walking along or driving along the street, basic Meter Data could be collected automatically by LAISON MDT (Mobile Data Terminal) which equipped with LAISON Walk-by Data Collection APP (AquaRadius App.) and MDC (Mobile Data Collector), and be uploaded to MDM System by GPRS or WIFI.
Remote Control & Alarm
Automatic alarm notification by email or SMS. Support Hourly Water Consumption Curve Analysis, Meter Status Monitoring, Remote Valve Control, Pressure Adjustment, etc..
Through the GIS management mode of dividing multiple districts, wireless communication is used to transmit real-time data such as flow, pressure and water quality, so as to timely and accurately grasp the operation of the pipe network in each metering area, make statistical analysis and evaluation on the leakage status of each district, intuitively reflect the regional leakage situation, and assist the location of leakage points, so as to provide scientific basis for optimizing water supply dispatching management.
Build a five level regional measurement management system of "company, branch company, District, branch line, household meter" interconnection, so as to provide effective technical support for cell measurement, water change control, and scientific control of pipe network leakage.
Using the artificial intelligence algorithm based on big data and graph neural network(GNN), reliable leakage monitoring service is provided with the data collected by the partition metering system.
