NB-IOT IoT remote transmission valve controlled water meter function:

Wireless wake-up

It can achieve remote wireless wake-up and respond to real-time processing instructions from the upper computer.

Sampling measurement

Multiple forms of sampling methods can be implemented, such as pulse, photoelectric, etc., with high measurement accuracy.

Attack valve closure

It has the function of preventing external electric and magnetic attacks. When the sampling is attacked by external electric and magnetic forces, the water meter can automatically close the valve.

Remote control valve

It has remote valve control function and can realize prepaid and postpaid functions.

In place testing

Equipped with switch in place detection function. When the normally open contact is in place and closed, it indicates that the switch valve is in place and the valve operation can be stopped immediately.

Trigger upload

The module is usually in sleep mode and can be triggered to upload real-time data once.

Low voltage shut-off valve

When the battery voltage drops below a certain value, the module can automatically close the valve and upload real-time data once.

Power off and close the valve

When the water meter loses power, it will automatically close the valve to prevent accidental or human power outages; After powering on again, the valve returns to its pre power-off state.

Characteristics of NB-IOT IoT remote transmission valve controlled water meter

1. The built-in low-power wireless data transmission module is designed with a fully digital integrated circuit, using LoRa spread spectrum debugging technology, which has strong anti-interference ability, long transmission distance, and low static power consumption. The static power consumption of the wireless remote water meter is less than 5uA, ensuring a battery life of over 6 years for the water meter.

2. Equipped with battery undervoltage reminder, the wireless remote water meter uploads the battery voltage inside the water meter while transmitting the water meter reading. When there is a power shortage or undervoltage phenomenon in the wireless remote water meter, the meter reading system will automatically list the water meter as an abnormal water meter and remind the user;

3. It can achieve real-time communication and real-time control around the clock.

4. Equipped with valve control function, it can achieve two working modes: postpaid and prepaid;

5. The water meter has a unique identification code: water meter address;

6. The water meter automatically closes the valve when the battery is discharged or when the battery is dead;

7. The water meter can automatically close the valve when disturbed;

8. The water meter circuit board adopts nano coating waterproof treatment, which is waterproof and moisture-proof.

9. The microprocessor adopts the MICROCHIP series Nava technology CMOS flash microcontroller from the United States, with a wide operating voltage and low power consumption. The internal EEPROM can be erased and written more than 100000 times;

10. Data retention and recovery function: In the event of a power outage, the data in the table can be saved for ten years. When powered on, it has the function of recovering data to ensure that the data in the table is safe and sound;

11. Anti attack function: The water meter adopts highly reliable sensors with strong anti magnetic attack capabilities. General external magnetic field interference will not affect the normal operation of the meter. At the same time, the management system can effectively record and alert users of illegal attacks, improving the reliability of the product;

12. The base meter adopts die cast copper one-time forming technology and is processed by CNC machine tools. It has high pressure resistance, no sand holes, and will not explode. It will not rust after long-term operation, has a long service life, precise process design, good consistency of the body, B-level accuracy, accurate measurement, stability and reliability;

13. The character wheel display is clear and easy to read, and the base table has a service life of ten years;

14. The measuring instrument has a unique ID number when it leaves the factory, and a complete record of production, debugging, use, and maintenance is established.

15. The water meter can be remotely recharged and the unit price can be adjusted remotely through wireless in prepaid mode.

16. There is a mechanical reading display on the wireless remote water meter, and there is an electronic reading corresponding to the mechanical reading on the remote meter reading management system. At the same time, there should be water meter abnormality prompts, valve status prompts, battery level prompts, etc. on the software system.

17. The water meter is powered by an internal lithium battery, with a battery life of ≮ 6 years. The wireless communication technology parameters and indicators comply with the technical requirements for low-power (short-range) wireless equipment as stated in the Ministry of Telecommunications [2005] No. 423.

18. Equipped with bidirectional communication function, the concentrator and collector can real-time copy the actual data of the meter;

19. The wireless remote water meter has real-time wireless wake-up, which can achieve remote wireless wake-up and respond to the processing instructions of the upper computer in real time.

20. Attack valve closure, with anti external electrical and magnetic attack function. When the sampling is attacked by external electrical, magnetic, etc., the water meter can automatically close the valve.

21. Remote real-time valve control, with remote real-time valve control function, can realize prepaid and postpaid functions.

22. In place detection, with switch in place detection function. When the normally open contact is in place and closed, it indicates that the switch valve is in place, and the valve operation can be stopped immediately. It can determine three states: open, closed, and abnormal valve.

23. Trigger upload. The wireless water meter is usually in sleep mode and can be triggered to upload real-time data once.

24. Low power valve closing function: When the battery voltage drops below a certain value, the module can automatically close the valve and upload real-time data once.

25. Power off and close the valve. When the water meter is powered off, the valve will automatically close to prevent accidental or human power outages; After powering on again, the valve returns to its pre power-off state.

26. The red markings indicate the functions of the water meter with valve control. If the bidding party bids for a wireless water meter without valve control, the red functions do not need to be provided.