In order to use the environment of Taiwan's 200W mercury street lamp, Everlight Electronics has released the world's ultra-high efficiency 130lm/W Taiwan Victory SL-Victory LED street light. In addition to the rigorous CNS15233 test, the lamp components and assembly are all made in Taiwan. In order to increase the output value of the relevant lighting industry. At the same time, Everlight's LED lighting products have successively included relevant awards at home and abroad to further enhance the international visibility of the "Made in Taiwan-MIT" LED industry.
According to the needs of CNS10799 road lighting design, "Taiwan Victory LED Street Light" provides bright lighting for the main roads, secondary trunk roads and steam locomotive mixed roads in Taiwan, which can reduce traffic accidents and reduce crime rate, while providing advanced asymmetric optical Designed to meet the CNS15233 cut-off design. In addition, the lamps can be adjusted according to the needs of the purchasing unit and the brightness according to the specifications, which can greatly reduce the light damage, and thus does not affect the roadside farming and households.
"Taiwan Victory LED Street Light" is designed according to the 70~100W replaceable dimming power supply provided by the Energy Bureau's full set of LED street lamp technical specifications. It provides a maximum brightness of 9100lm with a minimum power consumption of 70W, and provides a tool-free disassembly modular design. For the maintenance of subsequent maintenance units is convenient.
Based on the premise of energy saving without losing the quality of lighting, Everlight is leading the world with a high luminous efficiency of 130lm/W, and can adjust the brightness output according to the local demand. After adjustment, the road brightness can be maintained above the standard, so as to achieve Energy saving without losing the quality of lighting. In addition, in response to the rapid development of LED technology, in order to ensure that the quality and performance of the products purchased by the purchaser meet the long-term needs, Yiguang Electronics is customer-oriented, providing “one-time†cross-generation advanced technology, providing full participation with 130lm/W ultra-high lamp efficiency. The best choice for the purchase of the street lamp replacement plan! It is hoped that the purchasers will be able to reduce the number of new products that have just been replaced, once in place, to reduce subsequent upgrade concerns and cost waste, and fully take into account the cost-effectiveness of procurement and the high quality demand of the public for the public lighting environment. At the same cost, you have to buy the best! Everlight "Taiwan Victory LED Street Light" is the best choice for the government LED street light reloading program.
(This article is based on Yiguang Electronics)
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.szmovingcomm.com