Can LeTV be used? At this stage, music as the box can be used, do not forget, music as the box is equipped with the system is also an open platform Android system, users can still watch video by installing third-party software, but the music as the original exclusive resources of the box that is not to think about , unless the private master launched a crack version of LeTV tv version.
But constantly downloading and installing cracked video software is also a very tiring thing. What should we do? Very simple, download a key crack apk software, this type of software provides cracked video apk, support for one-click installation. There is a need to download a friend to see here: a key installed cracked version of the TV APP never fall, the video continues to see or is a creepy apk software download and installation tutorial graphic.
Since LeTV has actively cooperated with the rectification and agreed to put the back-end server and content into the control of the licensee, it will be accepted by the SARFT. This means that the LeTV Box and Super TV will be officially recognized in terms of policies and regulations.
On August 22, 2014, affected by the criticism of LeTV by the SARFT, the integrated iCNTV service in the LeTV box has also been suspended, and it was reported that LeTV's integrated broadcast control platform interface between TV X60 and X50 was shut down. stop.
This is the latest progress made by the SARFT in rectifying the broadcast control platform. In July this year, it was reported that SARFT had asked seven integrated service licensees to stop cooperation with LeTV. The rumor led to a sharp decline in LeTV's share price. Later, LeTV announced that it would cooperate with the Central Propaganda Department to build a party-building channel, only to dispel the concerns of the capital market. .
It is worth noting that after the suspension of the broadcast control platform by LeTV, the industry has expressed concern about the future ecology of LeTV. The reason is that the current business model of LeTV is to force 24-month service fees for bundled sales. If the services of the service broadcast control platform are suspended, it is still unknown whether LeTV’s charges will last. However, some analysts believe that the suspended service of the broadcast control platform has little impact on LeTV, on the grounds that users do not often use the iCNTV service.
What is Car Ethernet
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.
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Shenzhen MovingComm Technology Co., Ltd. , https://www.movingcommtech.com