Accurate single-chip ultrasonic sensing, FRAM MCUs for smart water meters
The MCUs and reference designs, TI says, make both electronic and mechanical water meters smarter, in response to demand for more accurate water meters and remote meter reading. The MSP430FR6047 MCU family adds more intelligence to flow meters by taking advantage of a complete waveform capture feature and analogue-to-digital converter (ADC)-based signal processing. This technique enables more accurate measurement, with precision of 25 picoseconds or better, even at flow rates less than 1 litre per hour. The integrated MSP430FR6047 devices reduce water meter system component count by 50% and power consumption by 25%, enabling a meter to operate without having to charge the battery for 10 or more years. The new MCUs also integrate a low-energy accelerator module for advanced signal processing, 256 kB of ferroelectric random access memory (FRAM), a liquid crystal display (LCD) driver and a metering test interface.
TI; www.ti.com/MSP430FR6047-pr-eu
next page; reference designs & design support
TI has the ‘MSP430 Ultrasonic Sensing Design Center’, a development ecosystem that allows developers to get to market in months. The design centre provides tools for quick development and flexibility for customization, including software libraries, a graphical user interface (GUI), evaluation modules with metrology and digital signal processing (DSP) libraries.
TI’s ‘Low-Power Water Flow Measurement with Inductive Sensing’ Reference Design is a compact solution for the electronic measurement of mechanical flow meters with low power consumption for longer battery life. Enabled by the single-chip SimpleLink dual-band CC1350 wireless MCU, this reference design also gives designers the ability to add dual-band wireless communications for AMR networks. Designers can take advantage of the reference design’s small footprint to retrofit existing mechanical flow meters, enabling water utilities to add AMR capability while avoiding expensive replacement of deployed meters. The CC1350 wireless MCU consumes [an average of] 4 µA while measuring water flow rates.
A second reference design is an ultra-low power solution based on the SimpleLink Sub-1 GHz CC1310 wireless MCU. The Low-Power Wireless M-Bus Communications Module Reference Design uses TI’s wireless M-Bus software stack and supports all wireless M-Bus operating modes in the 868-MHz band. This reference design provides lowest power consumption and flexibility to support wireless M-Bus deployments across multiple regions.
More at; www.ti.com/flowmeter-pr-eu
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :
