What is Car Ethernet Vehicle Router,Vehicle 4G Router,Vehicle 4G Wireless Router,Vehicle Wifi Router Shenzhen MovingComm Technology Co., Ltd. , https://www.movingcommtech.com
Car Ethernet is a new local area network technology that uses Ethernet to connect the electronic unit in the car. Unlike traditional Ethernet, which uses 4 unshielded twisted pair cables, car Ethernet can achieve a transmission rate of 100Mbit/s or even 1Gbit/s on a single pair of unshielded twisted pair cables. At the same time, it also meets the requirements of the automotive industry for high reliability, low electromagnetic radiation, low power consumption, bandwidth allocation, low latency and synchronous real-time. The physical layer of on-board Ethernet uses BroadRReach technology, and BroadR-Reach's physical layer (PHY) technology has been standardized by the One-pair Ethernet Alliance (OPEN). Therefore, it is sometimes called Broad RReach (BRR) or OABR (Open Alliance BroadR-Reach). The MAC layer of vehicle Ethernet adopts the IEEE 802.3 interface standard and seamlessly supports widely used high-level network protocols (such as TCP/IP) without any adaptation.
On-board Ethernet protocol architecture
Vehicle-borne Ethernet and its supported upper-layer protocol architecture are shown in Figure 1. Vehicle-borne Ethernet mainly involves OSI layer 1 and Layer 2 technologies, while vehicle-borne Ethernet also supports AVB, TCP/IP, DOIP, SOME/IP and other protocols or application forms.
On-board Ethernet framework
Among them, AVB is an extension of traditional Ethernet functions, which enhances the real-time performance of traditional Ethernet audio and video transmission by adding precise clock synchronization, bandwidth reservation and other protocols, and is a network audio and video real-time transmission technology with great development potential. SOME/IP (Scalable Service-Oriented MiddlewarE on IP) specifies the video communication interface requirements for vehicle camera applications, which can be applied to the field of vehicle cameras, and realizes the mode control of driver assistance cameras through apis.
As an extension of AVB protocol, Time-Sensitive Networking (TSN) introduces related technologies of time-triggered Ethernet, which can efficiently realize the transmission of automotive control information. In addition, the on-board Ethernet of the 1Gbit communication standard also supports Power Over Ethernet (POE) function and Energy-Efficient Ethernet (EEE) function. The POE function provides power for connected terminal devices while transmitting data through twisted pair cables, eliminating the need to connect external power cables to terminals and reducing the complexity of power supply.
On-board Ethernet standardization
In terms of in-vehicle Ethernet standardization, the IEEE802.3 and IEEE802.1 working groups, AUTOSAR, the OPEN Alliance and the AVnu Alliance have played a major role in promoting it.
The IEEE802.3 local area network standard represents the mainstream Ethernet standard in the industry, and the on-board Ethernet technology is developed on the basis of IEEE802.3, so the IEEE is currently the most important international standardization body for on-board Ethernet. In order to meet the requirements of the car, it involves the development of a number of new specifications and the revision of the original specifications within the two working groups of IEEE802 and 802.1, including PHY specifications, AVB specifications, and single-wire to data line power supply. In addition, AVB related to AV transmission, timing synchronization and other specifications also need to be standardized by other technical committees of IEEE, such as IEEE1722 and IEEE1588.
OPEN Alliance
The OPEN Industry Alliance was launched in November 2011 by Broadcom, NXP, and BMW to promote the application of Ethernet-based technology standards to in-car connectivity. The main standardization goal is to develop a 100Mbit/s BroadR-R physical layer standard and develop OPEN interoperability requirements.
AUTOSAR
AUTOSAR is a consortium of automotive manufacturers, suppliers, and tool developers that aims to develop an open, standardized automotive software architecture, and the AUTOSAR specification already includes the automotive TCP/UDP/IP protocol stack.
AVnu
The AVnu Alliance was formed by Broadcom in collaboration with Cisco, Harman and Intel to promote the IEEE 802.1 AVB standard and the Time Synchronization Network (TSN) standard, establish a certification system, and address important technical and performance issues such as precise timing, real-time synchronization, bandwidth reservation, and traffic shaping.
[pconline sea election shopping guide] When it comes to mobile phones, they can be categorized into various price ranges, from budget-friendly devices under a thousand yuan to mid-range phones around 2,500 yuan, and even premium flagships that command much higher prices. Many consumers find themselves overwhelmed when shopping for a phone, often leaning towards more expensive models under the assumption that higher price equals better quality. While this might be true in some cases, it’s not always realistic for those operating within a limited budget. Fortunately, there are several phones available at around 2,500 yuan that offer a combination of performance, features, and value that rival those of pricier flagships.
To help simplify the selection process for consumers, we’ve curated a list of standout phones priced around 2,500 yuan. These phones are top-notch in terms of hardware, software, and overall user experience, yet remain reasonably priced. Investing in any of these phones would be a wise decision, as they won't leave you regretting your purchase. The models we’ve chosen include the vivo X9s, Nubia Z17, Gionee S10, and Huawei nova 2. Let’s dive into what makes each of them unique.
**Recommended Model: vivo X9s**
*Reference Price: 2,698 yuan*
*Reason for Recommendation: Front Dual Camera*
Released on July 6th, the vivo X9s is the successor to the popular vivo X9. Compared to its predecessor, the X9s boasts significant improvements in both processor and battery capacity. The device now uses the more powerful Qualcomm Snapdragon 652 instead of the older Snapdragon 625. Additionally, the battery capacity has been increased from 3,000mAh in the X9 to 3,320mAh in the X9s, providing extended usage time without compromising the sleek form factor.
The design of the X9s remains largely similar to the X9, featuring a classic family-style appearance that has become synonymous with modern aesthetics. One noticeable change is the integration of a waist-type fingerprint home button on the front panel, which can be pressed or touched to navigate. Surrounding the home button are multitasking and return keys that light up when pressed.
The X9s sports a 5.5-inch 1080P display, utilizing COS narrow bezel technology to reduce the white and black bezels to just 1.59mm, resulting in an impressive screen-to-body ratio of 78.5%.
On the camera front, the X9s features a dual-camera setup with a 20-megapixel main camera (f/2.0) and a 5-megapixel secondary camera (f/2.0). This dual-camera solution allows for natural bokeh effects, capturing depth-of-field information more accurately than purely software-driven algorithms. The rear camera boasts a 16-megapixel sensor with a 1/2.8-inch size, supporting PDAF phase detection autofocus.
Software-wise, the X9s runs Funtouch OS 3.1, which is based on Android 7.1. The interface maintains a clean and fresh look with flat-design icons, offering a pleasant visual experience. Functionally, Funtouch OS includes smart sensory features, super screenshots, app double opens, split-screen multitasking, and more, ensuring a seamless user experience.
For gamers, the X9s offers a great experience with its enhanced gaming engine. Features like a game keyboard and do-not-disturb mode during gameplay enhance focus, while the scheduling mechanism ensures optimal performance, allowing eight full CPU cores to reach their maximum potential.
Editor’s Note: As a follow-up to the successful vivo X9, the X9s delivers a solid performance across the board, particularly excelling in gaming and photography. Its dual-camera setup produces stunning images, making it an ideal choice for young consumers looking to capture memorable moments.
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**Recommended Model: Nubia Z17**
*Reference Price: 2,799 yuan*
*Reason for Recommendation: High Cost-Performance*
Nubia has always been known for pushing boundaries, and their latest flagship, the Z17, is no exception. With its borderless design, dual-camera setup, and top-tier hardware, including the Qualcomm Snapdragon 835 processor and up to 8GB of RAM, the Z17 offers exceptional value at its starting price of 2,799 yuan.
The Z17’s all-metal unibody design eliminates the traditional three-stage separation, boasting an impressive 98% metal composition. Its front panel is covered with 2.5D glass, giving it a sleek and premium feel. The rear camera features a dual-color setup with a 12-megapixel primary sensor and a 23-megapixel secondary sensor, both supporting PDAF phase detection autofocus.
Running on Nubia UI 5.0, which is based on Android 7.0, the Z17 offers a refined user experience with intuitive visual designs and enhanced functionality. The device is powered by the Snapdragon 835, paired with either 6GB or 8GB of LPDDR4X RAM and 64GB or 128GB of UFS 2.1 storage.
Editor’s Note: The Nubia Z17 combines cutting-edge technology with a user-friendly interface, making it a strong contender in the 2,500-yuan price bracket. Its dual-camera system and high-end hardware ensure that it stands out among its competitors.
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**Recommended Model: Gionee S10**
*Reference Price: 2,599 yuan*
*Reason for Recommendation: Four-Camera Setup*
The Gionee S10 is notable for being the world's first quad-camera smartphone, offering superior photography capabilities. Equipped with a 20-megapixel front camera and an 8-megapixel secondary front camera, along with a 16-megapixel main rear camera and an 8-megapixel secondary rear camera, the S10 provides versatility in photography. Additionally, it features a hardware engine for advanced image processing and support for 3D cameras, soft light selfies, and group selfies.
With 6GB of RAM and 64GB of storage, the S10 ensures smooth multitasking and ample space for apps and media. Its Amigo OS 4.0, based on Android 7.0, offers a fresh and modern interface, complete with features like face recognition and mobile payment options.
Editor’s Note: The Gionee S10 is a standout choice for those who prioritize photography. Its innovative quad-camera setup and long-lasting battery make it an attractive option for users seeking balance between style and functionality.
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**Recommended Model: Huawei nova 2**
*Reference Price: 2,499 yuan*
*Reason for Recommendation: High Value for Money*
Huawei’s nova 2 series inherits the brand’s reputation for high value and excellent camera performance. Featuring a dual-camera setup with a 12-megapixel main sensor and an 8-megapixel secondary sensor, the nova 2 captures stunning photos and videos. Its 5-inch 1080P display, coupled with a sleek metal body, makes it a stylish and portable device.
Equipped with a Kirin 659 processor and 4GB of RAM, the nova 2 handles multitasking efficiently. Running on EMUI 5.1, which is based on Android 7.0, the phone offers a clean and intuitive user interface with numerous productivity-enhancing features.
Editor’s Note: The Huawei nova 2 is a compelling choice for those who value both aesthetics and performance. Its competitive pricing and solid build quality make it a worthwhile investment.
In summary, these phones represent the best offerings in the 2,500-yuan price range, providing excellent value for money. Depending on your priorities—whether it’s self-portraits, long battery life, or overall performance—you can choose the phone that suits your needs. Each of these models offers something unique, making them strong contenders in their respective categories.