MaaS / SDV accelerating practical use NXP supported by high -speed and detailed "data journey": Solutions close to "actual machine" are in front of you.

　The automotive industry has begun the leather period with the new concept of "Case" and "MaAS (Mobility as a Service)".In addition to continuing to search for new business models that make use of data collected from automobiles, logistics, transportation, regional / urban transportation, etc. due to social backgrounds such as pandemic and recalculion of new Coronavirus infections (COVID-19).While is being reviewed significantly, the attention to MaaS is increasing.According to the prediction that Fuji Keizai announced in November 2020, the MAAS market in Japan is 2 in 2030..It reaches 5 trillion yen.In Japan and overseas, MaaS demonstration experiments for various use cases are underway.

　One of the elements that is the foundation of MaaS is, of course, "data."Get data from the sensor mounted on the car, process and analyze it in a local (inside the car) or cloud to make use of it in mobility services.The important thing here is the gateway that controls networks, data flow control and cloud connections in the vehicle.Gateway plays a great role, such as processing data collected from sensors, secure and stable real -time communication with the cloud.It is no exaggeration to say that one of the keys to MaaS / SDV practical use is that the gateway is holding.And such a gateway has already come to the stage where it can be realized.

　The "S32G" in -vehicle processor, which NXP Semiconductors started mass -producing in June 2021, is a product developed for such a gateway.Separately from the CPU core, a network, hardware and accelerator can be processed smoothly with a large amount of data.

　In November 2020, AWS announced a press release based on the cooperation of connected cars to expand the opportunity.By using the S32G and AWS clouds to show off demonstrations for telematics insurance, a specific use case shows that the gateway for MaaS is approaching practical use.

　The demonstration consists of a PC that simulates the movement of the car, an evaluation board equipped with S32G, a board that performs Can To Can Communication, and AWS cloud.You can connect the evaluation board equipped with an S32G to a gateway, connect to the cloud, update the S32G with OTA (over the air), and upload data inside the vehicle to the cloud.

　Specifically, the coding components of the "AWS Iot GreenGrass Client Software" that extend the cloud functions locally are implemented in S32G by OTA, vehicle speed, location information, engine speed, and gear position.The data on the can was uploaded to the cloud, indicating that it would work with various AWS services.As a result, a series of data can be confirmed in real time from the outside via the cloud, so that the information required for telematics insurance, such as monitoring the status of the vehicle and confirming the surroundings of the vehicle, can be obtained.Looking at this demo alone, you can feel that the gateway technology for MaaS is finished beyond the POC (Proof of Concept) and is quite close to the actual use case.

　"NXP Japan Marketing Headquarters Microcontroller Club Manager," Takahiko Murata, "S32G," S32G, which can upload the necessary data to the cloud while processing the vehicle data on CAN and sending it to a unit like a dashboard.Is equipped. "

　"I would like you to know through demonstrations that the technology for the gateway that supports MaaS, including telematics insurance, is not only for evaluation and verification, but also as a solution that can actually be used."

　NXP expanded the S32G family in December 2021 and announced four products.Up to 2 compared to existing families that are mass -produced.Provides 5 times the application processing performance, on -chip memory system, and networking performance.

　What is important alongside the processing performance of the data is the route and management where the data flows.Against the backdrop of the mega trend of MaaS and Case, the electronic/electric (E/E) architecture of software -defined cars is evolving from conventional dispersion to domain architectures and zektone architectures.Among them, the largest change is the in -car wiring.In particular, Zone architecture has the advantage of overwhelmingly reducing the weight of the wire harness, while there is also a mixture of data.

　NXP Japan Marketing Headquarters Microcontroller Division Manager Manager Manager Manager Hayasaka said, "In -vehicle communication data requires real -time data such as accelerator, brakes, and steering, camera, radar, and Lidar data.There is data that requires high bandwidth, which is used for advanced driving support systems (ADAS), automatic driving, and MaaS. In the zone architecture, for example, a mixture of data, for example, is mixed in one Ethernet backbone network.That's why it is an issue how to control these different data flows. "

　Under such circumstances, NXP proposes a solution that combines in-vehicle processors with TSN (Time-Sensitive Networking) and DDS (Data Distribution Service).TSN has evolved with standard Ethernet standards, which enables low -delay and high -reliability synchronization communication.DDS is also used in ROS2 in international standards for communication middleware, and has a strength to achieve communication reliability and real -timeability in plugs and play functions and distributed applications.For this reason, the affinity between DDS middleware and TSN is very high.

　NXP Japan's Technical Headquarters Automotive MCU/MPU Technology Department Field Application Engineer Satoshi Kamiya said, "TSN, which controls the data flow of Ethernet and realizes low -delay and reliable networks, and real -time between applications.By successfully combining DDS middleware that realizes highly reliable data transmission, all data paths from application layers to network layers are appropriately managed, and control data requires real -time and high reliability.It will be possible to communicate on the street. "

　In order to indicate that the data flow is properly controlled by DDS middleware and TSN, in addition to S32G, NXP processor "LX2160" and "I".Demonstrations using MX 8 "and Ethernet switch" SJA1110 "are prepared.

　The figure below shows the configuration of the demonstration.The evaluation board equipped with the S32G is a gateway, an evaluation board equipped with the LX2160 is considered as an autonomous driving unit, and the SJA1110 is connected to each.On the gateway side, I mock the in -vehicle infotainment system i.MX 8 is connected, and on the autonomous driving unit side, another i, which simulates MaaS..MX 8 is connected.

　In the demonstration, even if data interference or network failure occurs, it is possible to confirm that data sending and receiving and receiving data is continuously performed by the QOS function of the TSN and DDS."TSN standard" IEEE 802 "that realizes seamless redundancy.1CB ", bandwidth control and priority IEEE 802.1QAV CREDIT-BASED SHAPER (CBS), "IEEE 802.1. By combining Priority-Based Schedular (PBS) and QOS control between DDS middleware, both safe and accurate data flow controls will be realized "(Kamiya)

　The DDS also has a function called "Service Discover" that allows you to add ECUs and sensors to the network by plug and play, making it easy to build a flexible network according to the different use case and sensor configuration for each model.In that respect, DDS is a middleware suitable for MaaS.The NXP proposes a solution based on the open source DDS base and one of the partner's commercial DDS "RTI Connext DDS", which is a major support for MaaS / SDV developers.It should be.

　"NXP offers comprehensive solutions necessary for MaaS / SDV, from processors such as S32G to TSN -compatible Ethernet switches and DDS -like middleware. MaaS / SDV development does this solution well.I would like you to use and use a limited resource effectively. "(Mr. Hayasaka)

　The comprehensive and verified solution provided by NXP will make it easier and accelerate the development of MaaS / SDV.The solution for MaaS / SDV's practical use is in the reach of the developers.

Copyright © ITmedia, Inc.All Rights Reserved.