The wheels were rolling, and the bus was driving slowly on the land of Min Dahuang.

More than 10 years ago, the new campus of China Normal University moved here, and the girls were shocked by the sparsely populated landscape of this place, so they gave their campus the nickname Min Dahuang. Over time, Min Dahuang has become synonymous with this school.

Parking and shaking turned out to be very effective in relieving fatigue, and the carriage was quickly filled with the sound of whispering and laughing.

In the front seat, Zhu Lingling smiled elegantly and politely, "These products are already on the market, and they should be easy to find." ”

Zhou Qin was still stunned, the onlookers in the back row couldn't stand it anymore, Chen Ke came over and grabbed him, "Classmate, are you learning software? Come and sit here!"

The two of them sat down again, and Zhou Qin asked in a low voice: "The few products that Sister Ling said really use the new architecture?"

"Of course it's true," Chen Ke nodded, "RISC-V is an open-source architecture, which can be customized according to different uses, which is very suitable for emerging categories with a single function such as bracelets and glasses, and the effect is better than using low-power ARM, but the development cost is a little expensive." ”

"Oh, that's right!" Pointing to the other party's wrist, Chen Ke said: "The bracelet in your hand is customized by CTA, and the chip inside is also RISC-V architecture." ”

Looking down at the customer bracelet on his wrist, Zhou Qin's face was full of surprise, and he asked in a low voice, "Is this the same?"

Chen Ke sneered, and opened his mouth to say: "What kind of feeling can the CPU give you?" X86 has power, ARM is light, MIPS is like a professor, and RISC-V is newer and tender?"

Zhou Qin hurriedly shook his head and denied: "No, no, I didn't mean that." ”

However, the other party didn't intend to let him go, and immediately asked, "Then what do you mean?"

Taking a deep breath to calm down, Zhou pointed to the bracelet and said, "I have tried to transplant applications to this bracelet, and the whole process went smoothly without strange problems, and it is not at all like a new architecture and new platform." ”

As he spoke, he didn't forget to look at Chen Ke with admiration and envy. Then I saw the latter puff out his chest proudly, wave his hand and boast, "Of course, who made our BDK development tools easy to use?"

Bai Yunfan couldn't stand it anymore, and asked: "The Bee Development Kit is indeed easy to use, but you will feel that there should be other reasons for the ease of transplantation. Can you tell us what kind of application you're transplanting?"

"It's 'iFi Navigator', a navigation gadget. ”

It is a peer-to-peer indoor navigation app that allows users to send and view location and path information based on iFi fingerprint maps, so as to guide other users to quickly find themselves.

There are always many semi-permanent iFi signals near urban homes and shops, and by measuring and recording these signals of different intensities, names, and sizes, the electromagnetic characteristics of a specific location can be obtained, which is called an iFi fingerprint. If you collect a sufficient number of "fingerprints" and associate them with a real map, you can get a special map that can be used for positioning and navigation.

It's a pity that iFi fingerprints can only be measured on the spot, and the labor cost is very high and it is easy to expire, which is difficult to popularize on a large scale, and it is only sporadic in large supermarkets and shopping malls.

Zhou Qin's "navigator" is the second best, using a small range of "fingerprint" paths combined with GPS, base stations and other positioning methods to create a "machine to find people" navigation application, successfully achieved a higher quality indoor navigation.

Hearing that it was this app, Bai Yunfan raised his hand and liked: "I have this app on my phone, the idea is very good! It turned out that you made it!"

Zhou Qin smiled modestly: "It's nothing, all the ready-made algorithms are used, but there is no technical content." ”

"That's also very powerful, technology can be learned, but creativity can't be learned," Bai Yunfan shook his head and said to Zhou Qin: "If this application is transplanted, then it makes sense." The 'Navigator' itself contains the RISK-V code, and it is naturally easy and enjoyable to transplant it to the bracelet based on the BH501 platform. ”

What code is in the application he developed, but he doesn't know it, so he can't help but make Zhou Qin wonder, "What's going on? Why have you never heard of it?"

"Your 'iFi Navigator' called Bee's iFi fingerprint production algorithm, which requires the B5 coprocessor of Bee's mobile phone, which is actually a custom low-power RISK-V chip. With this foundation, transplantation is naturally much easier. ”

Speaking of this, he joked with a smile: "So you actually used it for a long time, but you didn't know it." ”

"I see," Zhou Qin let out a long breath, relaxed, and nodded, "Thank you for your doubts!"

Sighing lightly, the boy continued: "I have tried to transplant the 'Navigator' to Android and iOS before, but the effect is always unsatisfactory, not to mention the power consumption is scary, and all kinds of errors often do not match. Later, the bee map found me and said that it was going to be bought out and made into an exclusive feature of the bee system, I thought it was the bee who was careful to make it special, but I didn't expect that the problem was actually the coprocessor. ”

"Classmate, you're thinking wrong again!" Chen Ke interjected, "Lacking a B5 coprocessor, you can use a small CPU core to run the algorithm, which ultimately only leads to high power consumption, considering that the frequency of use does not have much impact." However, the positioning is not accurate and the matching is the problem of the antenna, our antenna is an exclusive technology, the effective transmission and reception distance is comparable to the Nokia feature phone of the year, and the distance between iFi and Bluetooth is significantly exceeded, which can improve the fault tolerance rate of iFi fingerprint matching. Other mobile phones have cut too much antenna performance for the sake of appearance, and it costs more to achieve the same effect. ”

"That's a pity," Zhou Qin sighed again, "It would be nice if other mobile phones also used bee antennas." ”

"How can it be so easy?" Chen Ke poured a bucket of cold water on him, "Mobile phone manufacturers like to make a fuss about the appearance of antennas so much, how can they use competitors' antennas? Not to mention that even if they want to, Bee Mobile is not willing to give it." Good signal and continuous flow of connections are one of the core selling points of Bee mobile phones, and even BPA manufacturers want to get a bunch of preconditions, how can it be easily given to outsiders?

Zhou Qin understood this approach, but he still couldn't help but sigh regretfully.

Chen Ke also sighed, this guy came into contact with society earlier than ordinary peers because of selling apps and doing part-time jobs, but he was a student in an ivory tower after all, and he lacked an in-depth understanding of the competing interests and intrigues in society. If it were an old fritter like him who had been away from campus for a few years, it would have become strange a long time ago.

"What are you sighing for?" Sensing that the atmosphere was wrong, Bai Yunfan joked with a smile and pointed out, "Look there!"

Zhou Qin turned his head to look, and saw a person wearing a bee helmet and riding a bicycle rushing towards this side, it was Atletico who had just borrowed his car to deliver goods for him.

Subconsciously glancing at the time, he couldn't help but mutter: "Why is it so fast?"

"Is it okay if you don't hurry up?" Chen Ke asked rhetorically, pointing farther away: "Didn't you see that someone was catching up?"

Looking in the direction of his finger, Zhou Qin really saw a lot of figures looking over here. However, the actual situation was far from being as exaggerated as Chen Ke said, everyone just stopped and took a look from afar, and there was no tense scene of you chasing me and escaping, which made him very relieved. If you really have a brainless star chasing, the face of the century-old famous school of Jiaotong University will inevitably be affected, and people from other branches will definitely have something to say.

Jiaotong University originated from Nanyang Public School during the Westernization Movement in the late Qing Dynasty, and has been repeatedly relocated due to various reasons in history, and finally the situation of five Jiaotong University in the country appeared. Because of the competition for the name of "this school", well-known alumni and the resources behind it, there is something wrong between the five schools, especially between Shanghai Jiaotong and Xi'an Jiaotong. It was not until last year, taking the opportunity to celebrate the 120th anniversary of the founding of the university, that the principals of several schools came together and issued a declaration to express their win-win cooperation and jointly polish the brand of Jiao Tong University. However, it will take some time for the declaration to be implemented into action, and ordinary students like Zhou Qin still have a little bit of the arrogant mentality of "not letting the second room and the third room see jokes" in their hearts has not been completely reversed.

Atletico was very fast, and the bus had just stopped, and he stopped the bike with a dashing tail flick.

Zhou Qin stood up and wanted to get out of the car, but was stopped by Ma Jing who was carrying a bicycle, "Student Zhou, don't be in a hurry to leave, let's talk, okay?"

At this moment, Zhou Qin couldn't move his steps anymore, and it felt like he had made millions.

The two of them found a seat and sat down, and Atletico turned his head and asked, "How long have you been doing this?"

Zhou Qin secretly breathed a sigh of relief and replied: "I started doing it in my freshman year, and there were no little bees at that time, they all worked part-time on CTAs, helping people write some scripts, small programs or something, and earn some living expenses." ”

"Well," Atletico smiled, "then now, you should not be short of living expenses by selling the iFi Navigator to Bee Map, right? Why do you have to come out and deliver couriers part-time?"

After such a long time, he already knew the identity of the boy in front of him, and he earned a net worth of one million in his sophomore year.

Hearing his question, Zhou Qin smiled shyly, "There is no special reason, I just feel that I can't think of good ideas by sitting in front of the computer, so I just take on some part-time jobs in other categories, which can be regarded as a change of brain, and by the way, I can exercise and expand my social circle." Speaking of which, the Navigator was inspired by the delivery in the first place. Many students have the habit of visiting the dormitory, and there is often a situation where they can't find anyone and need to go next door to find someone, so I made this app to find people through my mobile phone. ”

Atletico nodded, "It's nice that you have an eye for a need and be able to turn it into a product yourself." Are you interested in interning at Bee during the summer?"

To the surprise of him and the onlookers, Zhou Qin hesitated for two seconds, and then nodded a little tangled and agreed: "Okay, I'm fine!"

The reluctance on the other party's face was so obvious, of course Atletico Madrid would not turn a blind eye, tilted his head slightly and asked: "What? Is there any problem? Or do you say that you don't like our small temple?"

Zhou Qin was shocked, and hurriedly shook his head and denied it: "No, no! The main thing is that I have promised others that I will go to Qinghai-Tibet with her during the summer vacation, and I was hesitating about this just now." ”

"What's that?" Zhu Lingling, who was quietly pretending to be an audience on the side, interjected, "You can bring her to Ludao, work and love will not be delayed!"

was full of worries being exposed, and the boy was embarrassed all of a sudden, and flatly denied: "No, we are just ordinary friends." ”

Zhu Lingling was unwilling to let him go, and asked very gossipily: "The relationship is all developing, and it is not the future." Tell me, how did you two meet, is she a girl from this school, or is she from the Chinese Normal School next door?"

After all, classmate Zhou is young, and he is not embarrassed to dodge left and right in the face of questioning, and he is almost about to collapse. At the critical moment, the bus slowing down on the school road slowed down and stopped, which successfully diverted Zhu Lingling's attention and made her have to let go of the little boy in front of her.

Outside the door of the car is the building of the School of Microelectronics, and there are several middle-aged men and women standing at the door, but they are the leaders of the college who came temporarily after receiving the news. According to the pre-arranged time, Atletico and the bee team will not arrive until tonight, and then take a night off to attend the RISC-V promotion day tomorrow. Who knew that this guy didn't act according to the schedule, came to the school half a day early, and made a surprise attack.

The complaining and scolding of the academy took it all away, and then asked about the itinerary of the other guests.

"Professor Patterson has arrived and is resting in the hotel, and Professor Asanovic and the other guests are still on their way," said the director of the school.

"That's not bad," Atletico nodded, "I'll visit Professor Patterson later, and I just have some questions to ask privately." ”

The RISC-V architecture was first founded by the University of California, Berkeley, and is open source to academia and industry, so most of the academic experts in this field come from the university, such as David Patterson and Krste Asanovic, who were invited to give presentations on the first day of the conference, are from the Department of Computer Science of the university. The former is the advocate and founder of the RISC reduced instruction set, and the latter is the current leader of the RISC-V instruction set and related development languages, responsible for coordinating and unifying the forces of the entire open source community, which can be said to be the "big steward".

However, Atletico wanted to visit Professor Patterson, not because of his contribution and experience in the field of RISC, but because of the latter's new job, who announced his "retirement" last year, and then jumped to join Google's chip development department, becoming a TPU (tensor computing unit) is a kind of computing hardware developed by Google, dedicated to the inference stage of computer deep learning, claiming to have a better cost-effectiveness ratio than GPUs. Google and Nvidia have even had a verbal dispute over which TPU or GPU is stronger, which has also made this new hardware famous.

Bee also has its own artificial intelligence hardware, but the Brain series is mainly for mobile phones, bracelets, toys and other embedded devices, more emphasis on power consumption and imitation ability, the design idea is very different from the data center-oriented, more emphasis on computing efficiency of the TPU, Atletico Madrid hopes to learn from each other's strengths and weaknesses through academic exchanges, which is why he specially led the team to participate in this R5 conference.

(End of chapter)