From the April sales released by the Passenger Association, you can intuitively feel that the market of conventional fuel vehicles is positiveAccelerated erosion by new energy vehicles. In April, the production of new energy passenger vehicles reached 802,000 units, an increase of 35%. Retail sales were 640,000, up 23% from a year earlier. In addition, Chinese consumers are currently the world's most passionate fans of new energy vehicles.
Euler good cat Euler is the new energy vehicle brand of the Great Wall, and other models of the Great Wall, Euler's three cars have changed the rough style of the past, and the exquisite design similar to the Volkswagen Beetle and BMW mini has attracted the love of many female consumers.
Ranked fourth is Baojun New energy, as Chery eQ seriesA strong contender, is the second minicar to break into the top 10. Baojun's products have always been known for high prices, coupled with the relationship with general, novel design, sales want to fire are not good. Ranked fifth and sixth, Weilai ES6 and Ideal ONE are both products of the new force of car manufacturing, and their sales have been stable.
As the most expensive SUV model in BYD's brand, the Tang series is divided into Tang EV and Tang DM-i these two versions, of which Tang DM-i is the absolute main selling model, but also because of its cheap, fuel and electricity product characteristics are highly loved and recognized by the Chinese people. As for TangEV, the starting price of the new car came to 2.28 million, so if the budget is not particularly sufficient, especially love pure electric models, then the average person will choose Tang DM-i.
Dolphin, Yuan PLUS ranked third. The two cars are all new models of BYD e platform 0, which fill the gap in the entry-level pure electricity market of 100,000 to 150,000, because of the lack of competitive products at the same level, coupled with BYD's brand effect in the new energy market, Dolphin and Yuan PLUS basically have no rivals, with monthly sales of nearly 30,000 vehicles, which can be said to be "winner-takes-all".
Can avoid being honked by the car behindCalculation speed: First of all, we must determine the algorithm of digital signal processing, after the algorithm is determined, the amount of computation and completion time will be roughly determined, according to the amount of computation. And its time requirements can estimate the lower limit of DSP chip computing speed.
Computing speed: First of all, we must determine the digital signal processing algorithm, after the algorithm is determined, the amount of computation and completion time will be roughly determined, according to the amount of computation and its time requirements can be estimated the lower limit of DSP chip computing speed.
For example, the TMS320F28335 DSP, with its rich peripherals, has become the best for industrial controlThe power assistant. When choosing a DSP, it is necessary to consider computing speed, price, hardware resources, development tools and power consumption. For example, for an adaptive FIR filter, the processing of 256 taps takes 768 MAC cycles. Therefore, the factors to consider when choosing a DSP are software development tools (including assembly, linking, simulation, debugging, compilation, code base, and real-time operating system, etc.), hardware tools (development boards and simulators), and advanced tools (such as block diagram based code generation environment). The design process using these tools is shown in Figure 4. How to choose DSP device oftenProgramming problems.
In classification, DSPS are distinguished according to basic features, data formats, and uses, such as fixed-point and floating-point, static and consistent, and general versus private. When choosing a DSP chip, key considerations include computing speed (such as MAC time, FFT execution speed), price and performance balance, hardware resources (such as RAM capacity and interface), computing accuracy, development tool support, power consumption, and other factors such as packaging, quality, and lead times.
Due to the bit limit of the AD converter, the dynamic range of the general input signal is relatively small, but in the DSPIn signal processing, because the dot product operation will increase the dynamic range of the signal of the intermediate node, the dynamic range of the intermediate result in the signal processing flow and the accuracy requirement of the algorithm to the intermediate result are mainly considered to select the corresponding DSP.
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2, CPU is still the mainstream, N card has now been replaced across the line, GTS250 is a good choice to replace 9800GT below to say the current popular configuration of it: CPU the most mainstream CPU the most to buy is 400 yuan classic productionProducts, AMD has the second generation of the Velociron dual-core 245/250, Intel has Pentium dual-core E5300/E5400. 245 is about 380, and the E5400 is a little more expensive, estimated at 430.
3, in terms of video memory, the Blue Baud HD6770 platinum version uses the ultra-fast generation GDDR5 video memory particles, a total of 1GB/128bit video memory specifications, the default frequency is as high as 850MHz/4800MHz, the performance is very powerful. Memory Kingston DDR3 1333 4G 2GX2￥108 Kingston has the best compatibility and consistently excellent qualityGood workmanship, better durability options: Yu Zhan, Wei Gang.
4, why to help you choose a small board type, because 2105 wireless charging chip We must play the game with an independent graphics card. This one does not integrate graphics card, integrated graphics card is useless! Workmanship and compatibility matter!) Memory: Weigang 4GB DDR3 1600 (Wanzi Red) with ASUS H61 board, very stable.