Texas Instruments (TI) Smart Gas and Water Meter Solutions

Abstract: Texas Instruments (TI) smart gas meter and water meter solution information is provided to you by excellent flowmeter and flowmeter manufacturers. Design Considerations Gas and Water AMR (Automated Meter Reading) is an electronic meter (electronic meter) technology that incorporates metrics and a one-way communication medium that collects and presents utility time-synchronized interval meter data and provides customers with long-term power usage. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. Below are the details of the Texas Instruments (TI) smart gas meter and water meter solutions article. Design Considerations Gas and Water AMR (Automated Meter Reading) is an electronic meter (electronic meter) technology that incorporates metrics and a one-way communication medium that collects and presents utility time-synchronized interval meter data and provides customers with long-term Power usage profile. It combines high-power endpoints, network receivers, data collection engines and fixed network technology to let providers know how much gas and water is being used by who and when. Gas and Water AMI (Advanced Meter Reading Infrastructure), sometimes referred to as Smart Meter Reading, acts as a two-channel communication network that adds other communication and control functions to the AMR, including valve control and customer access to power consumption data. TI offers a range of high-performance products that support many of the key functions required in today's AMR and AMI smart gas and water meters, from ultrasonic to mechanical. TI solutions provide the following capabilities: Bidirectional communication and time-synchronized measurements TI offers a family of low-power RF products (sub-1GHz and 2.4GHz solutions) connected to TIMCUs. This type of communication enables early detection of leaks from these meters and enables monitoring and customer awareness. Recording and billing Because of the need to implement flexible rates, it is critical to have such a system where power consumption information is recorded. TIMCU solutions provide embedded flash technology that makes this type of system a reality. Additionally, TI offers solutions with tamper-resistant and prepaid RFID options, enabling the ultimate flexibility of today's smart gas meters. Extending infrastructure life In order to optimize the frequency of service, the battery life of such applications needs to last 10-15 years. TI's MSP430 ultra-low-power MCU family fits this idea nicely by combining high performance with low power consumption. Power While maximizing battery life, the key to optimizing the low-power MSP430 is the correct selection of ultra-low quiescent current power management devices. While running the MCU directly from the battery may work (within the specified MCU operating range) and appear to save the cost of the power management components, the lack of voltage regulation can lead to excessive standby power consumption and reduced battery life. This results in higher maintenance costs that far outweigh all the cost savings from not using the regulator. Stabilizing the MCU and peripheral communication ICs to the lowest possible voltage will optimize power-saving features and prolong battery life. Depending on the battery type used and the operating mode (full load) duty cycle of the meter, we have a choice of power management solutions. For simple applications using low duty cycle (long standby) with cells with a smooth discharge profile (such as Li-SOCl2 original cells), the use of ultra-low IqLDOs can provide long battery life at very low cost. For applications with high duty cycle operation, using a low IqDCDC regulator in power save mode (for light loads) provides higher efficiency at a modest cost increase. For applications using batteries with a linear discharge curve such as multi-cell alkaline or NiXX, using a low Iq buck/boost converter will maximize power supply life by providing a regulated discharge voltage as low as 1.8V. For use with a single cell or small coin cell (in which case the battery voltage can be lower than the regulated voltage), using a low lq boost converter can provide an input voltage as low as 0.7V for the regulated voltage. While fully operational MCUs and peripheral communication ICs can be optimized for a certain voltage, these devices can still operate at a much lower voltage in standby mode (keeping only the RTC and memory). Battery life can be further extended by using DCDC converters and LDOs with dynamic voltage scaling (usually implemented through the V-Select logic pin). The mechanical force of an analog sensing gas meter is measured/detected by inductive sensors (flow), pressure sensors and RTD or silicon temperature sensors (temperature). Due to the very low voltages, precise low noise amplifiers (for flow and temperature) and instrumentation amplifiers such as the OPA2209 and INA10x (for pressure) are required on the front end, respectively. Typically, the voltage is digitized with a precision ADC integrated in the MSP430. The mechanical structure of ultrasonic meters is much simpler than that of diaphragm meters, resulting in increasingly lighter and more compact designs. Due to the use of a special measurement method, this instrument has more detailed and sensitive detection of leaks and faster detection speed compared with the diaphragm type instrument.Can be used for a wider range of measurements. Ultrasonic meters require a specific analog front end for detecting flow proportional to the time measurement and its accuracy between two ultrasonic sensors. TI is currently developing a device that will allow measurements down to picoseconds while seamlessly connecting to the MSP430. By supporting these capabilities, TI enables you to produce accurate bills, perform routine gas system balancing and adjustments, enable early detection of leaks, and provide real-time usage for better energy savings. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Texas Instruments (TI) Smart Gas and Water Meter Solutions'

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