LoRa Water Meter Valve Control Municipality
Product Description
LoRa Water Meter Valve Control Municipality
AMI SYSTEM INTRODUCTION SIMPLE IS SMART…
System structure diagram as follows
· server send commands to the data concentrator through network;
· concentrator transforms the received commands into radio signal and send the signal to the water meters;
· water meters respond and execute the commands accordingly;
· Water meters deliver the result or data back to the management center as per the original route after the actions finished.
Product features
·our lora water meter has high accuracy
·Type:dry dial/screw/seal
·Material:Cast Iron/brass
·Scenes to be used:home/apartment/domestic/indoor/house/residential/housing/garden/housing/commercial/general household/residential building/for residence/apartment /municipality/household/potable/domestic residential
·waterproof level:IP68
·Technical data conform to international standard ISO 4064.
·Accuracy:class b
·Water temperature: 0.1℃~50℃ ( 0.1℃~90℃ for hot water meter).
·fitting:Concentrator/Repeater/connctor/PCB/valve control/strainer/reading device/valve actuator/plastic cover/battery operated/coupling/pointer/components/counter/accessories/register/ball valve
·communication:lora/wireless remote/local internet/Private Protocol
Outline dimensional drawing
Dimension
| Nominal Diameter | Length L | Length L1 | Width B | Height H1 | Height H2 | Connecting Thread | |
| mm | d | D | |||||
| 15 | 258 | 165 | 90 | 112 | 184 | R1/2 | G3/4B |
| 20 | 299 | 195 | 90 | 112 | 184 | R3/4 | G1 |
| 25 | 345 | 225 | 90 | 114 | 186 | R1 | G11/4B |
Technical specifications
| Item | Unit | Details | ||
| Nominal diameter | mm | 15 | 20 | 25 |
| Q3/Q1 | R80/R100 | |||
| Overload flow(Q4) | m⊃3;/h | 3.125 | 5 | 7.875 |
| Nominal flow(Q3) | m⊃3;/h | 2.5 | 4 | 6.3 |
| Transitional flow(Q2) | m⊃3;/h | 0.05 | 0.08 | 0.13 |
| Minimum flow(Q1) | m⊃3;/h | 0.031 | 0.05 | 0.08 |
| Accuracy class | Class 2 | |||
| Maximum indication | m⊃3; | 99999 | ||
| Temperature class | T30,T90 | |||
| Pressure class | MAP 10/MAP 16 | |||
| Pressure loss class | Δp63 | |||
| Flow prefile sensitivity class | U10/D5 | |||
| Environmental class | Class B | |||
| Electromagnetic environment class | E1 | |||
| Static current | uA | <10 | ||
REMOTE WATER METER COMPARISON CHART
| Prepaid | LoRa | Gprs | NB-IOT | |
| composition | Prepaid water meter IC card Reader Software | LoRa water meter Concentrator Repeater Serve Platform | GPRS water meter Serve Platform | NB-IOT water meter NB-IOT transmission base station Serve Platform |
| Communication band | None | 470-510Mhz 865-868Mhz | GSM850/EGSM900 | CDMA1X800/EGSM900 |
| Advantage | Transmit information through IC card,charge accurately install and operate easily. | LAN transmission data low power,Suitable for intensive installation real-time reading control. | Wide area network,data transmission without distance limitation and debugging,low sample order cost. | Wide coverage,low power consumption,low cost and slower rate. |
| Limitations | The stand-alone version of the software can only be read and controlled on designated computer.Backup user data when replacing a pc. | Greater impacts by obstacles and limited communication distance (up to 1 km). On-site debugging is a heavy workload. | Occasionally there will be data packet loss, high transmission rate, relatively high power consumption. | At present, NB technology is not fully mature and the coverage of base stations is low. |
| Battery capacity | more than 6 years | more than 6 years | more than 6 years | more than 6 years |
| Software payment | Free | Free | Free | Free |
| Cost | Almost no use cost. | Electricity and flow charges for concentrators. | Mobile data traffic charge of 2g data traffic in water meter. | Mobile data traffic charge of 2g data traffic in water meter. |
| necessary part of sample purchase | Prepaid water meter IC card Card Reader | Lora water meter Concentrator | GPRS water meter | NB-IOT water meter |
| software | Stand-alone application | B/S Cloudy serve platform | B/S Cloudy serve platform | B/S Cloudy serve platform |
| Software compatible | YES | YES | YES | YES |
Communication and serve platform
1. Does the GPRS wireless water meter need a concentrator or a collector?
No, because the GPRS wireless water meter uses the existing GPRS communication tower for data transmission, which is similar to the mobile phone signal transmission.
2.How many Lora water meter can be connetted into one concentrator?
At present, the maximum carrying capacity of one concentrator is
500 pieces.
Considering the actual installation density of the community, generally speaking, it will be much lower than this number.
3.What data can the platform collect from water meters?
At present, our platform can collect accumulative flow rate, battery voltage, upload time on the water meter, and ultrasonic LoRa can also collect instantaneous flow rate.
4. How does the concentrator transmit data?
The concentrator needs 220V power supply and uses GPRS to transmit data to the PC platform.
5. How about the transmission distance?
The distance of LoRa data transmission is mainly affected by the actual installation environment. In relatively spacious transmission environment, the transmission distance can reach 1000-1500 meters.
Generally speaking, the concentrator will be installed at the commanding heights of the community.
GPRS water meter Under the GPRS signal, the data uploaded by GPRS water meter is not affected by distance.
6.How do you know that the water meter is out of order and there is no data to return?
First, we can check the alarm function on the platform to see that the water meter has no data return, and then check the installation environment to see if there is obvious damage, and can use the initiative to trigger the water meter to be on-line way.
7. Is the platform free? Can it pay in advance?
It is free, and the administrator can pre-charge the amount of money
It is free, and the administrator can pre-charge the amount of money
on the platform and set up user information files for each useron the platform and set up user information files for each user.
8. Warranty?
All meters will be guaranteed against defects in workmsnship and meterials for a period of one (1) year from the date of acceptance. Defective meters or parts discovered within this period shall be replaced without charge upon return to the S.H.Meters.