Reference Design For Water Stream Measurement For AMR

The design providing a extremely environment friendly and dependable resolution for AMR add-on modules in water, warmth, and gasoline metering purposes.

The rising international demand for sensible water meters is driving the substitute of conventional mechanical meters. As an alternative of totally changing these meters with digital counterparts, integrating digital add-on modules provides an economical different. This strategy balances affordability with aggressive efficiency, making it a compelling market resolution. The TIDA-010050 reference design, developed by Texas Devices (TI), leverages the CC1312R SimpleLink ultra-low-power wi-fi MCU to create a low-cost LC sensing subsystem. This subsystem detects disc rotation with distinctive vitality effectivity and efficiency. The design presents a single-chip resolution that innovatively combines circulation measurement with wi-fi Computerized Meter Studying (AMR) capabilities, providing a compact and budget-friendly possibility.

It’s suitable with any CC13x2 and CC26x2 SimpleLink™ low-power RF wi-fi MCU, all of which function an built-in sensor controller engine. This totally examined design demonstrates a sturdy resolution for digital water circulation measurement when paired with mechanical meters, enabling wi-fi communications for AMR modules. These modules seamlessly combine into present mechanical meters, facilitating superior functionalities with out changing your complete system. The RF subsystem helps protocols like wi-fi M-Bus and proprietary codecs in Sub-1 GHz ISM bands, guaranteeing dependable and correct readings over longer distances. Moreover, the ultra-low energy consumption extends battery life, a crucial requirement for battery-powered sensible water meters.

Key options embody a single-chip resolution integrating circulation metrology and RF communication, compliance with ISO4064-1:2014-11 (Class 1) measurement accuracy requirements, and ultra-low energy operation consuming just one.83 µA at a 16 Hz sampling fee on a 3.3-V energy provide. It might precisely measure rotations as much as 5.8 mm from the disc and is supported by complete design documentation, firmware, and take a look at reviews. The CC1312R wi-fi MCU targets varied wi-fi protocols, together with wi-fi M-Bus, IEEE 802.15.4g, 6LoWPAN, ZigBee, KNX RF, and Wi-SUN, making it versatile for a variety of purposes.

Good water meters usually function on batteries, emphasizing the significance of low energy consumption to realize a 10-year battery lifespan. The compact design of digital add-on modules additional constrains battery capability. Most circulation meters report measurements occasionally, leveraging RF communication only some occasions each day. Nevertheless, steady monitoring of circulation requires frequent wake-ups of the MCU, making vitality effectivity a major problem. 

TI has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) structure, and extra. The corporate’s web site has extra information concerning the reference design. To learn extra about this reference design, click on right here.