DASAN has been developing in-vehicle ECUs including infotainment systems for global car manufacturer. Basically, DASAN is the major supplier of network equipment in Korea. DASAN is now extending the business area to automotive domain by creating the synergy from the network and automotive technologies.
Ethernet-based camera solution gives a convenient way to install, operate and diagnose through the bi-directional communication. By embedding ®BroadR-Reach PHY technology, it has more strength against the signal impairments such as cross-talk. As a core bridge connecting the Ethernet-based ECU devices, AVB switch provides abundant features for the best deployment that includes stream reservation, bandwidth shaping, priority-based forwarding, auto-configuring IP/MAC address pair and feeding the electronic power to the camera. Enabling to talk between CAN and Ethernet domain is realized by building the gateway function on the top of the switch. Parking assistant system is useful especially for an inexperienced driver. DASAN’s AVM provides the ‘Top-View’ by composing and processing the real-time video streams incoming from front, rear, left and right cameras. Our goal is to provide ‘All-Ethernet’ in-vehicle communications from infrastructure to services.
Automotive Ethernet Switch
New needs to bring 'Ethernet' into in-vehicle, it's AUTOMOTIVE ETHERNET !
Expecting a rapid growth of in-vehicle traffic
- New type of ECUs are being adopted to realize Smart Vehicle.
- User’s demand on in-vehicle infotainment is increasing.
- Higher bandwidth is required to provide the video/streaming based services.
Limitation on today’s In-Vehicle communication
- Low bandwidth of CAN, FlexRay, and LIN.
One-Pair Ethernet (OPEN)
- As consumer demand for in-vehicle connectivity continues to grow, automotive manufacturers are under constant pressure to deliver competitive, innovative features while minimizing cost. BroadR-Reach automotive Ethernet technology allows multiple in-vehicle systems (such as infotainment, automated driver assistance and on board-diagnostics) to simultaneously access information over a single unshielded twisted pair cable. By eliminating cumbersome, shielded cabling, automotive manufacturers can significantly reduce connectivity costs and cabling weight.
- Engineered to meet the rigorous qualifications and demands of the automotive semiconductor market, BroadR-Reach® Ethernet technology delivers high-performance bandwidth of 100 Mbps per port while dramatically reducing connectivity costs and cabling weight.
- As the industry realized that 100Mbps is enough for a video transmission, but not enough to act as a backbone in the car. The industry pushed for the creation of a task force in 802.3 to define a standard for 1G over a single twisted pair. The new PHY will be known as 1000Base-T1 (1 stands for 1 pair). This will become a standard in 2017.
- DASAN is an adaptor member of OPEN alliance.
One-Pair Ethernet (OPEN)
- HD Video streaming from Camera
- Playing Audio/Video files to display unit connected with wire.
- Inter-Vehicle traffic
- Real-time traffic from various sensors.
- Diagnostics via DoIP
- ECU control via SOME/IP
AVB (Audio Video Bridging) – IEEE 802.1 AVB
- Many driver assistance systems (AVM, ADAS, LKAS, etc) rely on data from cameras and other sensors in a timely manner. Unlike watching video on a computer, where buffering is used to compensate for the unreliable timing of the network, AV systems require both controlled latency and guaranteed bandwidth.
- IEEE 802.1Qat (Stream Reservation) : A simple reservation protocol to notify the various network elements in a path to reserve the resources necessary to support a particular stream.
- IEEE 802.1Qav (Queuing and Forwarding) : Defines rules to ensure that an AVB stream will pass through the network within the delay specified in the reservation.
- IEEE also standardized IEEE 1722 (AVTP). Delivers streaming by defining media formats and encapsulations, media synchronization mechanisms, multicast address assignment, etc.
Automotive Ethernet Switch Module
- Automotive Ethernet Switch Module designed to facilitate the realization of more
cost-effective and fully operational Ethernet Switch products integrated into vehicle.
- The DASAN’s Automotive Ethernet Switch Module provides unparalleled levels of
utilizing integrating BroarR-Reach SoC solution to support automotive qualification
for in-vehicle networking applications.
The product brief of Automotive Ethernet Switch
Automotive HD Ethernet Camera
High Density CMOS sensor based multi-purpose Ethernet camera
- Applicable on Rear View, Corner View, Around View, ADAS, etc.
- CPU : MPC 5606E / MPC 5604E (NXP)
- Interface : BroadR-Reach Ethernet (100BASE-T1)
- Video Streaming : MJPEG via IEEE 1722a Streaming Protocol (AVTP)
- Protocol : UDP/IP , SOME/IP, SOME/IP SD (ISO 17215 compliant)
- AVB : AVTP, 802.1AS
- Diagnostics : Support based on UDS standard
- Reprogramming : Support on-line firmware update via Ethernet with secure manner
- Resolution : 1280x720, 1280x800, 640x480 (Configurable via SOME/IP message.)
Around View Monitor with CAN-Ethernet Gateway
- DASAN AVM display provides 360-degree surrounding scene of the car in bird-eye view. It can help a driver recognizes the vehicle’s position, and parking spaces and adjacent objects. A driver can check for obstructions around the vehicle through the bird-eye view. A driver can simultaneously check the rear or front side views of the vehicle.
- DASAN AVM processes digitized video data transmitted from 4 cameras individually, and compose as one screen image using state-of-the-art and high performance graphic processing technology, such as OpenGL ES 2.0.
- DASAN AVM supports Ethernet based video transmission (IEEE 1722a or UDP), IEEE 1722a can transmit more flexible and higher density video stream data than LVDS or analog based camera.
- DASAN AVM can control the camera via SOME/IP or Ethernet protocol based message.
- DASAN AVM can work as a master clock source of IEEE 802.1AS(gPTP) to synchronize time clock with 4 camera. This technology can provide the consistency of the image among cameras.
- DASAN AVM reduces the video transmission latency by hard based image decoder.
- DASAN has been building the AVB stack since 2013 for the automotive market. Our Ethernet AVB stack is available for Linux, OSEK OS, BCM89xxx. This AVB stack includes an implementation of IEEE 1722a AVTP, IEEE 802.1AS, 802.1Qav, 802Qat.
- TCP/IP stack, SOME/IP, SOME/IP SD, DoIP, UDS features continue to be added as an additional implementations.
- We have the capabilities and man power to develop Ethernet camera, Automotive Ethernet Switch, AVM, CAN-Ethernet gateway, etc.
- Partnership with an OEM.
Successfully finished co-operating on Ethernet car communication specification design.
- Activities for Open Alliance Member
Open Alliance SIG Adopter member since 2013.
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