Non-intrusive tracing analyses high speed events in Wi-Fi and Bluetooth

Short range connectivity software specialist, Clarinox Technologies has added ClariFi Insight, a non-intrusive trace and debugger which enables customers to debug their systems that include ClarinoxWiFi or ClarinoxBlue. 

ClariFi Insight traces the behaviour of a system, enabling developers to identify and correct errant application behaviour by capturing high-speed events. This has been successfully tested at speeds of 100mbit per second UDP over Wi-Fi.

Clarinox said that unlike many debug tools, ClariFi Insight does not interfere with the normal behaviour and functionality of embedded Wi-Fi and Bluetooth applications. This is particularly beneficial in high speed applications where a typical trace debug process can create interruptions that interfere with system sequencing and performance. 

The small footprint of ClariFi Insight ensures that developers can trace and debug high-speed events without slowing the software application and impacting normal system behaviour, said the company. 

The trend towards cloud connectivity, remote management and increased system integration requires once disparate systems to work together. Firmware from multiple silicon vendors, real time operating systems (RTOS) / operating systems (OS), and TCP/IP stack combine with drivers (e.g. USB, UART, and SDIO) as well as the connectivity stacks all operating under the customer’s own embedded application layer. ClariFi Insight provides information about how the various parts function and perform as they communicate and pass data to the ClarinoxWiFi and ClarinoxBlue components.

By providing providing clarity into the behaviour of even high speed Wi-Fi, develops can debug emerging applications such as video streaming from a camera over Wi-Fi at 10s of Mbits speed, commented Gokhan Tanyeri, CTO, Clarinox Technologies.

“ClariFi Insight is designed for debugging performance issues, but it can also be helpful for projects without a spare port for debugging or where the communications port, such as UART, is too slow to capture the high-speed events. It can also be used for Bluetooth applications such as A2DP music streaming,” he added.

It uses a small memory buffer at a set memory location to trace functionality. A buffer which can be as small as a few kbytes, is sufficient to enable a developer to debug a system crash or capture what is taking place on the target. When coupled with the option of defining custom events with short or long packets of data, these insights give engineers the visibility needed to trace whether one part of the system is attempting to communicate and/or pass data incorrectly or at the wrong time.

Once ClariFi Insight records the pre-defined events, the data can be read into ClariFi, where the full set of tools, including the Lua scripting capability, can search and analyse the information. The data can then be used with or without these other ClariFi debug, protocol analysis, and automated testing features. 

ClariFi Insight performance measurements could, for example, be taken during an automated testing session driven by ClariFi scripting engine. Various data formats are supported for reading the data by ClariFi. Today raw binary, Intel hex format or Motorola S format is supported.

Being non-intrusive, ClariFi Insight can be embedded in the release code. Trish Messiter, Clarinox Technologies, CEO explained: “When added to the release code, ClariFi Insight can be used to collect data on customer-reported issues from the field, if needed. Developers—and their customers—can rest assured that any bugs that happen not only during development, but also afterwards, can be traced and fixed.”   

https://www.clarinox.com

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Solid state digital beam steering technology is automotive-grade

Digital beam steering for lidar smart sensors has been announced by LeddarTech. LeddarSteer is designed for smart sensor developers and Tier 1 / Tier-2 automotive suppliers.

Digital beam steering refers to changing the direction of laser pulses in a lidar system. A stack of alternating liquid crystal cells and polarisation gratings enables light to be steered at different angles and at a specific wavelength in order to augment a lidar field of view.

LeddarSteer digital beam steering offers benefits such as software-controlled, on the fly adjustment, noted LeddarTech. It also allows for frame by frame adjustment, a pre-set or customised configuration, voltage controlled steering and is claimed to be easy to set up and interface with systems. It is also compatible with a range of lidar architectures and enables one lidar to address multiple use cases.

It is also field of view adjustable to accommodate a range of driver actions, such as turns, lane changes and slopes. Therefore, the same lidar can be used for motorway/highway and city driving.

Another benefit, said LeddarTech is that the resulting reduction in the number of sensors, contributes to bill of materials savings. In addition, said the company, the automotive-grade solid state technology results in a significantly higher MTBF (mean time between failures).

LeddarSteer can be seamlessly integrated into an existing lidar to expand the field of view or it can be integrated into a new lidar development. It provides an enhanced signal to noise ratio by concentrating laser power on a small region of interest while reducing the size, cost and complexity of lidar components whilst maintaining or increasing the pixel count and resolution.

According to LeddarTech CEO, Charles Boulanger: “LeddarSteer is the only digital beam steering smart component designed for mass production with the flexibility, reliability, cost, size and performance required by the most demanding 3D sensing applications and supported by standard automotive manufacturing process”. 

Founded in 2007, LeddarTech is an environmental sensing company that enables customers to solve critical sensing, fusion and perception challenges across the entire value chain. Its portfolio includes LeddarVision, a raw data sensor fusion and perception platform that generates a comprehensive 3D environmental model from a variety of sensor types and configurations. LeddarTech also supports lidar manufacturers and Tier-1 / Tier- 2 automotive suppliers with LeddarSteer digital beam steering and the LeddarEngine, which is built on the company’s Leddar technology employing patented signal acquisition and processing techniques to generate a richer and cleaner return signal at a lower cost.

The LeddarEngine comprises a highly integrated, scalable lidar SoC and software combination.

The company is responsible for several innovations in cutting-edge automotive and mobility remote-sensing applications, with over 120 patents granted or applied for, enhancing ADAS and autonomous driving capabilities.

http://www.leddartech.com 

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Robust, compact M12 adapter simplifies retrofits in transport

Equipped with X to D and D to X coding, the compact M12 adapter released by Provertha is designed to simplify retrofitting in transportation and railway technology.

It allows an M12 plug in connection with X to D and D to X coding to be made without any additional effort, said the company. A full metal housing provides shielding for the adapter which features an X- or D-coded pin interface with a rotating screw lock and a D- or X-coded socket interface with a fixed locking thread. The adapters are simply inserted between the switch and the cable using the usual torque tools. 

According to Provertha, this M12 adapter make a significant contribution to saving cabling costs and installation time. Rated to IP 67, it can be used for data transmission of up to 100Mbit and operates across a wide temperature range of -25 to +85 degrees C.

An X to D-coded adapter is particularly advantageous for retrofitting in railway technology, said Provertha, as existing D-coded cabling can continue to be used, even if the switches have to be replaced by gigabit port switches during overhauls. Equally, the X to D-coded adapter allows 100Mbit devices to be connected with Gigabit cabling systems.

Typically, Ethernet capable devices, which need no Gbit Ethernet, are equipped with M12 D-code connecters while newly installed Ethernet cablings are already based on X-code technique (using four pairs).

Ethernet switches are used for data communication in trains and infotainment in train carriages. The trend towards higher data rates is also applicable to railway switches. As equipment is overhauled, old switches are increasingly replaced, for example, 100Mbit ports on the switches are increasingly being replaced by Gbit ones. This means that instead of the D-coded M12 sockets, more X-coded sockets will be used despite D-coded cabling being retained because of the high cost of the X-coded cables, requiring D-coded connectors that can match X-coded sockets.

http://www.provertha.com

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Three-in-one soil sensors maximise agricultural yield, says Murata 

A three-in-one soil sensor has been introduced by Murata for data driven sustainable agriculture. It simultaneously monitors the electrical conductivity, water content and temperature of the soil to provide farmers with data to maximise the yield and quality of crops while minimising resources such as water and fertilisers.

The tip of the soil sensor contains a grid of nine sensitive electrodes that provide consistent measurements of the soil’s electrical conductivity. Algorithms are used to allow the electrodes to measure and compare the electrical conductivity of pore water ( i.e., water between the soil particles) to the volume of the soil’s natural nutrients and added fertilisers. These measurements are not affected by soil moisture content, which eliminates uncertainty in the soil to help farmers improve crop quality and yield with the selection of optimum fertilisers.

Knowing the water content of the soil also enables the grower to irrigate the soil in an accurate and timely manner, which can save water. As well as monitoring soil conditions, the three-in-one sensor can monitor the water quality of rivers and lakes.

In addition to labour savings in agricultural work and reducing the waste of valuable resources such as water and fertiliser, the sensors provide data management and control. 

“They also contribute to achieving sustainable development goals (SDGs), such as environmental problems like salt damage and the accompanying food problems caused by global climate change,” said Yoshiyuki Oba, developer, Murata. “

Protected to IP68-equivalent for dust and water, including rust proofing, the energy-efficient soil sensors can run on three AA batteries for over half a year if the measurement interval is once every 30 minutes. 

The multi-interface sensors also support UART, RS232E, RS485, SDI-12, and RS485 MODBUS, making them compatible with existing crop management systems.

Murata manufactures electronic components, modules and devices. The company’s range includes ceramic capacitors, resistors / thermistors, inductors / chokes, timing devices, buzzers, sensors and EMI suppression filters. In addition to ceramic capacitor manufacture, the company produces Bluetooth and Wi-Fi modules, board-mount DC/DC converters as well as standard and custom AC/DC power supplies.

Established in 1944, Murata is headquartered in Japan and has European offices in Finland, France, Germany, Hungary, Italy, the Netherlands, Spain, Switzerland and the UK.   

http://www.murata.com

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