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Ultrasonic water meters have improved accuracy and precision to detect the smallest leaks to reduce water waste.

Ultrasonic Sensing for More Accurate and Precise Water Flow Meters

Ultrasonic sensing techniques have been popular in smart water meters because the technology avoids any moving parts which are prone to degrade over the lifetime of the product. The MSP430FR6047 microcontroller (MCU) family takes ultrasonic sensing solutions to next level of performance delivering <25ps of accuracy, detection of low flow rates <1 liter/hour and high precision of <5ps.

Precision temperature measurement in heat and cold meters

PT100/500/1000 Resistance Temperature Detectors (RTDs) are widely used in grid infrastructure and factory automation applications where high precision temperature measurement is often required. Technical requirements include either 20 mK precise Differential Temperature Measurement (DTM) for heat and cold meters from 0 to 180°C or better than 400 mK precision over the full range of -200 to 850°C for industrial sensor transmitters.

Polyphase Current Measurement with Isolated Shunt Sensors

Shunt sensors are rapidly replacing current transformers as the preferred current sensing solution for electricity meters(e-meters) around the world.

RF Mesh Networking Offers System Performance and Interoperability

IPv6-based communications networks are becoming the standard choice in industrial markets such as smart meters and grid automation. These 6LoWPAN-based mesh networks address key concerns such as vendor interoperability, long-distance connectivity, security and reliability. This training will cover system- and software-level deep-dives on new RF 6LoWPAN mesh solutions, which implement open-source based 6LoWPAN mesh stacks on top of the frequency hopping based TI-15.4 stack.

Battery and system monitoring for smart meters

Over the last few years, the industry has been moving from mechanical to fully electronic meters. We have seen more and more functionalities such as metrology with ultrasonic technology, leak detection with audio patterns, communication with low power and long range radio being added to smart meters. These new functionalities allow utilities to deliver new services such as condition-based maintenance and remote monitoring of meters, which lead to efficient management of the network and better customer experience.

How to design high-accuracy CT-based split-phase electricity meters using standalone metrology ADCs

As processing requirements for electricity meters gradually increase, it becomes increasingly difficult to find one device that meets both the processing requirements for adding advanced metrology features to smart meters while also accurately sensing metrology parameters, such as RMS voltage, RMS current, and active power.  To deal with this design challenge, one option is to use a separate metrology microcontroller and a standalone ADC.

How to design 1-phase shunt electricity meters using standalone metrology ADCs

As processing requirements for electricity meters gradually increase, it becomes increasingly difficult to find one device that meets both the processing requirements for adding advanced metrology features to smart meters while also accurately sensing metrology parameters, such as RMS voltage, RMS current and active power.  To deal with this design challenge, one option is to use a separate metrology microcontroller and a standalone ADC.

Universal data concentrator supports Ethernet, 6LoWPAN RF mesh and more

IPv6-based communications are becoming the standard choice in industrial markets such as smart meters and grid automation. The universal data concentrator design provides a complete IPv6-based network solution integrated with Ethernet backbone communication, 6LoWPAN mesh networking and more. The 6LoWPAN mesh networking, which adopts an identical layering architecture to the WI-SUN FAN, addresses key concerns such as standards-based interoperability, reliability, security and long-distance connectivity.

Interfacing multiple analog-to-digital converters on a Sitara™ processor

In this training series, we demonstrate how to use the PRU-ICSS subsystem on a Sitara processor to interface between multiple SAR ADCs using SPI.

EV Charging (Pile) Stations Design Considerations

Introduction to EV Charging (Pile) Station Standards

Learn an overview of global standards and common subsystems within Level 1, 2 and 3 public and residential EV charging (pile) stations.

EV Charging (Pile) Stations Design Considerations

EV Charging (Pile) Station Subsystem Analysis

While an EV charging station (pile) might seem like a straight forward design, there are many challenges to consider when needing to safely control the power delivery. This training module will provide further insights with a subsystem analysis alongside solution examples that help you mitigate commonly overlooked subsystems including public user interfaces, an authentication mechanism and residential communications in EV charging (pile) stations.

EV Charging (Pile) Stations Design Considerations

AC and DC Charging (Pile) Station Design Considerations

Gain a deep dive into common design consideration for a Level 1, 2 or 3 EV charging (pile) station and explore the service equipment block diagram for each.

EV Charging (Pile) Stations Design Considerations

EV Charging Station System Solutions

Explore EV charging (pile) station system solutions from TI’s design library.

Introduction

This section covers wireless network trends, key technologies, and problem statements for smart grid IoT. 

System-Level Examples for Wireless Networks on Smart Grid IoT

This section covers system-level examples for wireless networks on smart grid IoT. We will provide software- and system-level details for two system examples: 6LoWPAN-Contiki and sub-1GHz sensor to cloud industrial IoT gateway reference design. 

Summary

This section summarizes the wireless network challenges and solutions for a smarter grid IoT training series. 

Introduction

Tune in to learn more about meter tampering, why it is a problem for utility providers and some common ways a meter is tampered.

Detecting case tamper attacks using inductive switches

The first line of defense against tampering by bypassing current, reversing connections, and disconnecting leads is the meter case. Due to this, it is common for utilities to require some form of intrusion detection system to detect when someone opens a case.  In this section, we will cover how to detect someone trying to open the case of a meter.

Detecting magnetic tampering using hall-effect sensors

For anti-tampering, it is common to try to detect the presence of a strong magnet. In this section, we will cover the use of hall sensors for low-power detection of strong magnetic fields in three dimensions.  Details on our magnetic tamper detection reference design, TIDA-00839, will be provided as well as some of the design considerations that were kept in mind when creating this reference design.  

Hardening a meter against magnetic tamper attacks

In this section, we will cover how to harden a meter against these magnetic tamper attacks by using shunts for current sensors. For poly-phase implementations, I will go over how to use isolated delta sigma modulators to add the necessary isolation to use shunt current sensors and create magnetically immune poly-phase energy measurement systems. The TIDA-00601 and TIDA-01094 reference designs, which show how to implement a poly-phase isolated shunt measurement system, will be discussed as well as the associated AMC1304 high-side power supplies used in these designs.

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