smart factory
3.23.2 Intelligent water meter
Leiditech recommends intelligent water meter protection devices and solutions
The intelligent water meter communicates remotely with the server through NB IoT, without the need for intermediate transmission devices such as collectors or concentrators, achieving automatic remote meter reading of the water meter. LORA modulation technology can also be used for wireless data transmission and reception. It has the characteristics of ultra-low power consumption, long transmission distance, strong stability and anti-interference ability. The intelligent water meter is powered by batteries, which can not only record and electronically display the use of Mercury, but also complete water fee calculation, and can also store and transmit water data.
With the maturity of electronic information application technology, intelligent water meters will eventually move towards digitization and informatization, becoming a key link in architectures such as the Internet of Things and the Energy Internet. Lora is a communication protocol used in unauthorized frequency bands, which is equivalent to NB1oT in terms of coverage, power consumption, number of connections, transmission rate, etc. It is currently one of the widely used long-distance communication protocols. However, due to the regulations of the Ministry of Industry and Information Technology that networking is not allowed at 470MHz. 510MHz, the development of Lora has been hindered。
(most Lora applications in China are deployed at 470MHz. 510MHz). Currently, the advantages of NB-IoT are becoming increasingly apparent,It is expected to experience an outbreak in the next 3-5 years。
Leiditech recommends products for intelligent water meters：
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Class |
Brand |
Product and product overview |
|
ESD Diode |
Leiditech |
For display：ESDA3.3CW-4 package SOT-353 peak working reverse voltage 3.3V，Leakage current0.5ua
|
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ESD Diode |
Leiditech |
For RS485 chips：SM712 package SOT-23 peak working reverse voltage 7V，Leakage current1ua
|
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ESD Diode |
Leiditech |
For RS232 chips：SD12C package SOD-323 peak working reverse voltage 12V，Leakage current0.5ua
|
|
ESD Diode |
Leiditech |
For RS422 chips：SD12C package SOD-323 peak working reverse voltage 12V，Leakage current0.5ua
|
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ESD Diode |
Leiditech |
Wireless transceiver chip：ULC0511CDN package DFN1006 peak working reverse voltage 5V，Leakage current0.5ua
|
|
ESD Diode |
Leiditech |
USB for sending and receiving：SD05C package SOD-323 peak working reverse voltage 5V，Leakage current0.5ua
|
|
TVS Diode |
Leiditech |
For power supply：SMBJ6.5CApackage SMB peak working reverse voltage 6.5V，Leakage current50ua |
Leiditech can provide various interface electrostatic lightning protection solutions to solve electromagnetic compatibility problems for customers, and provide more protection solutions，Please search for the mini program "EMC Electromagnetic Compatibility Community" on WeChat. Welcome to contact Hu Gong 18016225001.
