harddriveHongwang Semiconductor analyzes whether emMC memory chip for vehicle monitoring is good or good with HDD
harddriveHongwang Semiconductor analyzes whether emMC memory chip for vehicle monitoring is good or good with HDD
hard disk wholesale SSD IN RECENT YEARSharddrive+8618750919058, the degree of intelligent development of automobiles is getting higher and higher Harddrive+ 8618750919058, which will greatly change the need for data storage in cars. In-vehicle DVR is increasingly used in vehicles, it uses embedded processors and embedded operating systems, combined with many technologies in the industry, to achieve 24-hour monitoring of various models. Mainly used in long-distance buses, urban buses, trains, subway light rail and other public transportation, in public security, fire, urban management law enforcement vehicles, as well as other special vehicles such as postal vehicles, cash carriers, ambulances and other special vehicles are also increasingly popular.
like photography people will know that tripods are often used during video shooting to prevent video shake paste, The on-board VDR is not recorded in real time at rest, and the hardware requirements of the device are more stringent, and a high-quality, high-reliability, and high-durability storage device is crucial. Vehicle DVR to be able to ensure that high-definition surveillance video signal data all-weather, continuous, stable recording and preservation, and can also work normally under extreme climatic conditions, these seem simple, in fact, it faces many challenges to achieve.
technical challenges
For vehicle DVR, stability is the first problem to be solved, large vibration, voltage instability, frequent power outages, large temperature changes, dust, strong interference, these harsh environmental factors affect the normal operation of the monitoring system.
24 hours a day: the vehicle DVR has multiple cameras in front of the car, behind the car, the driver, the inside of the car and so on. Multi-route, long-term, high-definition video data is continuously written, how to ensure the integrity and reliability of data recording?
to meet different operating environments: frequent vibrations, frequent power outages, unstable power supply systems, extreme temperature differences between the north and south in summer and winter, such a harsh driving environment, how to maintain the on-board stability of SSD operation?
large storage capacity requirements: the continuous writing of multi-route, long-term, high-definition video surveillance data, coupled with the storage requirements of expanded applications such as automotive black boxes, the capacity of vehicle DVR storage products must be large enough.
solution
the current stage of the in-vehicle storage market, with the new generation of NAND Flash as the storage medium of the SSD The superiority of eMMC products is mainly reflected in the upgrading and replacement of traditional HDD and NOR Flash. NOR Flash because of the high unit cost, many applications have been replaced by NAND Flash, and HDD due to shock resistance, drop resistance, high temperature resistance and other aspects of the inherent disadvantages, coupled with the NAND Flash unit cost is also declining with technological progress, automotive application equipment manufacturers tend to use more reliable and better performance SSD, eMMC products. Therefore, in the field of on-board storage, in addition to the need to meet the performance, cost, capacity requirements, the more basic is that it must be able to meet the vehicle standard to ensure stable and durable use in the harsh driving environment.
The series of storage products launched by FX Semiconductor ICMAX combined with its own technology have high quality, high performance and high durability, which are fully suitable for various automotive applications. Taking the third generation of Hongwang Semiconductor SSD products as an example, the maximum capacity is 1TB, the maximum speed of continuous reading is 563MB/s, the maximum speed of continuous writing is 522MB/s, the wide temperature level reaches -20 °C ~ 70 °C, and it supports functions such as temperature induction, high and low temperature resistance, firmware backup, SMART monitoring, power failure protection, etc., which can greatly improve the stability and reliability of data storage in vehicle applications such as driving monitors and driving recorders. It is precisely because of such products and technical support that Hongwang Semiconductor SSD can achieve multi-interface standards, a wider range of applications, and provide customized solutions in terms of interface, capacity and other needs.
Safety should be ensured on the road, even under extreme environmental conditions, and the on-board applications associated with it must be highly reliable. Hongwang Semiconductor’s automotive SSD, eMMC and other products have the advantages of large capacity, low power consumption, rugged design and wide temperature, wide voltage, etc., providing more solutions to adapt to in-vehicle applications, and better realizing audio and video synchronous recording, positioning, wireless audio and video real-time transmission and other functions in the vehicle. hard disk wholesaleSSD OEMharddrive
