#dotdot, the community internet

Ce projet de chaire, développé à l’ENSEIRB-MATMECA – Bordeaux INP, en synergie avec l’université de Bordeaux, s’inscrit dans des enjeux à la fois technologiques et territoriaux et fait écho aux nouveaux modes de mobilité urbaine. La question de la mobilité et des transports intelligents prend une importance croissante, en particulier, lorsque l’on évoque le développement territorial, d’un point de vue économique mais également humain. La thématique de la mobilité et des transports intelligents, ainsi que les usages et applications qui en découlent, est identifiée comme vecteur de croissance transverse à plusieurs domaines : le développement durable, la cohésion sociale et territoriale, le développement économique des territoires ainsi que la fluidification du trafic. A titre d’exemple, 30 % de la circulation dans la ville de Bordeaux concerne des véhicules qui cherchent des places de parking.

A wormhole attack is a type of attack on the network layer which reflects the issue of routing protocols. The classification is performed with several methods of machine learning consisting of K-Nearest Neighbor (KNN), Support Vector Machine (SVM), Decision Tree (DT), Linear Discrimination Analysis (LDA), Naive Bayes (NB), and Convolutional neural network (CNN). Moreover, for feature extraction, we used the properties of nodes, especially nodes speed in the MANET. We have collected 3997 distinct (normal 3781 and malicious 216) samples that comprise normal and malicious samples. Results of the classification show that the accuracy of KNN, SVM, DT, LDA, NB, and CNN methods are 97.1%, 98.2%, 98.9%, 95.2%, 94.7%, and 96.4%, respectively. Based on our findings, the DT method's accuracy is 98.9% and higher than other methods. In the next priority, SVM, KNN, CNN, LDA, and NB indicate high accuracy, respectively.

A detailed guide explaining over-the-air software and firmware updates as well as the status of each EV manufacturers current capabilities.

"Remote iteration (in automotive) is not a very common thing. We're used to using our iPhones and think remote upgrades are common. But in FOTA in the automotive sector, there are only two companies in the world that can do it, one is NIO and the other is Tesla."

Where the relocation of application intelligence from a client-side device to a centralized cloud sounds so much like a good idea that telecommunications engineers begin to ponder: Is this something we could have been doing with every mobile or embedded device all along?

600天35次大版本迭代，蔚来 FOTA 背后的故事! 每次 FOTA升级平均涉及到了 20 个 ECU 的刷新。此外，单个 ECU 的刷新成功率达到了99.98%。

第三代哈弗H6：FOTA升级更智能! 其中，第三代哈弗H6作为家族爆款功不可没，其以领先技术的运用打造超越同级的优势，为体验赋能，得到消费者认可。如，整车FOTA升级便是其主要亮点之一。今天我们就重点讲一讲这门技术。

Le virus Mirai, qui a refait surface cette année en s'attaquant à des devices utilisés en entreprise, a mis en lumière la nécessité de mettre à jour les objets connectés. Plusieurs pistes sont à l'étude.

Addressing the need for streamlined power management solutions for energy harvesting hardware, e-peas has unveiled a new family of battery charger devices. While the company’s existing power management ICs (PMICs) offer direct power delivery to the application, as well as the charging of energy storage elements (such as Li-Ion batteries or super-capacitors), the AEM10900, AEM10300 and AEM30300 are fully dedicated to the charging function. This allows them to be employed in situations that need a simpler implementation, where there are space or cost constraints that need to be considered.

‘Matter’ is an industry-unifying standard, guided by the Connectivity Standards Alliance (formerly known as the Zigbee Alliance), for reliably, securely and seamlessly connected devices. Matter is meant to increase compatibility among smart-home products, with security as a fundamental design tenet. Espressif has been part of the Matter initiative since its early days. In a blogpost originally published by Espressif’s engineer Hrishikesh Dhayagude, readers can learn how they can easily build a Matter application on ESP32.

Oubliez tout ce que vous pensiez savoir sur le photovoltaïque. Heliatek, une start-up allemande révolutionne le secteur et l'ouvre à tous car ces panneaux photovoltaïques d'un nouveau genre peuvent se poser partout, plus exactement se coller sur toutes sortes de matériaux : métal, béton, membrane, verre, bitume et autres supports.

Central to any technological progress is the enrichment of human life. The internet and wireless connectivity have done that by allowing not only virtually anyone anywhere to connect real time, but by making possible connections between humans and a range of intelligent devices both indoors and outdoors, putting smart cities on the horizon.

We propose the utilization of Elliptic Curve Cryptography in the design of an efficient data encryption/decryption system for sensor nodes in a wireless network. Elliptic Curve Cryptography can provide impressive levels of security standards while keeping down the cost of certain issues, primarily storage space. Sensors will benefit from having to store relatively smaller keys coupled with increased computational capability and this will be a stronger design as the bit-level security is improved. Thus, reducing the time delay between the nodes and to provide better results between them we have made use of this method. The implementation of this work is done with NS2 software.

Today’s warfighters and first responders, alike, must always be ready to mobilize, communicate, and operate under any conditions they may encounter. To be fully prepared for these dynamic environments, they must first have the necessary tactical knowledge and skillset.

Digital transformation and modernization initiatives are pervasive across all levels and sectors of our government – from federal civilian agencies, to military organizations, to state and local law enforcement and public safety organizations. Every agency and organization is exploring how new technologies can be implemented within the enterprise to increase efficiency, improve processes, and make operations better and more streamlined.

Prediction 8: Investors are more concerned about R&D, technology, FOTA. The most important components of new energy vehicles are motor, electric control, battery, and intelligent experience, and the amount of investment in R&D will directly affect the future of car companies. The more car companies invest in R&D, the more patents and achievements they can obtain, which is also more conducive to their future sustainable development. New car makers are choosing the pure electric route, and old traditional car companies are iterating engine technology while starting the electrification transformation. In terms of sales concentration, the market share of the top 15 in China has reached 77.5 percent. Compared to 2019, the top 15 car companies in 2020 have also increased their sales share of the overall market by 3 percentage points.

Carrying out software updates on our smartphones is a process we are all familiar with nowadays. On one hand, we expect the manufacturers to keep their operating systems up to date. On the other hand, we expect the same from app developers with regard to their apps. What’s more, the process of updating a software should be easy and, at best, require a simple tap of a button. So, why should this be any different when it comes to IoT devices? Let’s take a look at what over-the-air software updates in the IoT are all about.

吉利星瑞发布首次FOTA升级 打造“OTA生态计划”! 据介绍，“OTA”即空中下载技术，通过网络自动下载升级包、自动升级，经移动通信的接口实现对软件进行远程管理，实现现有功能/性能优化(BUG修复)、新功能推送等，通常多应用于手机、电脑等电子产品上。随着汽车新四化的推进和互联网大数据的快速发展，OTA技术也逐渐渗透到汽车行业，成为汽车高度智能化的必然趋势，开启了汽车不断成长的“生命通道”。汽车OTA又分为SOTA和FOTA两个不同“段位”。SOTA通常指软件升级，比如车载导航、娱乐应用、人机交互等车机功能，可以理解为手机里APP的更新。而FOTA则是指系统固件更新，可实现包括底盘悬挂、辅助驾驶、车身控制、信息娱乐等整车系统级别功能的全面更新。

第三代哈弗H6 可整车FOTA升级! 当大众、丰田这样的“大集团”,开始深度参与电动化、智能化变革的时候,趋势走向已经越来越明朗了——智能化时代降临,“机械集合体”是基础,芯片、传感器、电子电器相关的零部件越来越多,汽车具备了“可升级”的能力。也就是说,汽车不再是“交付即终点”的产品,而变成了可迭代可进化的新智能终端。
对于品牌来说,需要差异化体验做品牌支撑。所以,当电动化层面的机械硬件逐渐趋同的时候,更需要在智能化领域建立新的技术壁垒,这就不得不说到FOTA。

FOTA, or firmware over-the-air, is a technology that enables firmware downloads and updates for specific electronic control units (ECUs) inside a car. As the number of ECUs in vehicles increases, the sharing of diagnostic and operational data from on-board systems and components reduces costs of recall car manufacturers, increases product quality and operational efficiency, as well as deliver post-sale vehicle performance and feature enhancements.

A FOTA update event refers to downloading a new firmware within the car ECU, sent from a firmware server located in cloud via a wireless channel such as WiFi/ BLE/GPRS. The FOTA upgrade could include replacing a specific firmware image within a ECU’s Flash memory or adding juts a patch to an already existing firmware image to effect the required changes in the or ECU’s FLASH.

An ad hoc network is a wireless mobile communication network composed of a group of mobile nodes with wireless transceivers. It does not rely on preset infrastructure and is established temporarily. The mobile nodes of the network use their own wireless transceivers to exchange information; when the information is not within the communication range, other intermediate nodes can be used to relay to achieve communication. They can be widely used in environments that cannot be supported by wired networks or which require communication temporarily, such as military applications, sensor networks, rescue and disaster relief, and emergency response.

Espressif Systems (Shanghai) Co., Ltd. (SSE: 688018.SH) is launching ESP32-WROOM-DA, which is a module that achieves high-quality, wireless connectivity across large areas, using two complementary PCB antennas in different directions. Also, based on its industry-leading technical specifications, the co-existence of Wi-Fi and Bluetooth (Classic & Low-Energy) connectivity, and its low-power consumption modes, the users of ESP32-WROOM-DA will be able to bring to life a wide range of complex IoT application scenarios.

Learn how to use ESP-MESH networking protocol to build a mesh network with the ESP32 and ESP8266 NodeMCU boards. ESP-MESH allows multiple devices (nodes) to communicate with each other under a single wireless local area network. It is supported on the ESP32 and ESP8266 boards. In this guide, we’ll show you how to get started with ESP-MESH using the Arduino core.