Brief introduction:Using technology to change the world, we’re on our way

In February 2021, the “New Content and New Interaction” Global Video Cloud Innovation Challenge kicked off. This competition is jointly sponsored by Intel Ali Cloud, and Youku strategic technical cooperation, Tianchi platform and Ali Cloud video cloud team jointly undertook. Since its inception, the competition has attracted more than 4600 contestants from all over the world to sign up for the competition. We selected excellent cases and touching stories from the contestants to walk into the world of video cloud entrepreneurship and innovators together.

On May 11, the National Bureau of Statistics (NBS) released the seventh national population census data — the proportion of the population aged 60 or above in China reached 18.70%, among which the proportion of the population aged 65 or above reached 13.50%. How to provide for the elderly has become a hot topic in the society.

From Qingdao university seniors Wei Zijun will be focused on the elderly pension that occupy the home, the development of the solitary old man health supervision system, the system can keep track of the elderly at home state of life, to better protect the safety of living, children can through the remote control system focus on the parents’ home.

Video cloud + AI technology makes elderly living alone safer

With the increasing mobility of the population and the increase of the aging population, the empty nest family and the elderly living alone have become a problem for many families, and the accident of the elderly living alone also often appears in the news. Young people work and life pressure, let they neglect to a parent’s care and communication, away form the Wei Zijun social news each time I see old people who live alone, have started with can not help but worry about the old man, and then the developing an initiation by using video and AI technology to help old people who live alone to improve safety and health monitoring of the products.

Wei Zijun when research found that many of the products on the market now, and are mostly limited to the monitoring function of cameras, but the young man 996 working mode, big city make it hard to keep 24 hours in front of the camera, the camera outside of time, how can parents living alone in the “potential danger”? This seems to be a pain point for the industry.

Seeing the recruitment of the Video Cloud Global Innovation Challenge, Wei Zijun saw an opportunity to put his idea into practice. Focusing on video + AI technology, he developed a set of health state monitoring system for the elderly living alone. This system uses the body posture pictures obtained by the camera and Intel OpenVino Toolkit processing model to analyze the information of key points of the body and judge the posture of the human body. The objects in the video were clearly and accurately distinguished as “standing” or “lying flat”, and the duration of the lying position was counted. If the maintaining time of the lying position exceeded the set threshold, warning processing was carried out.

In this system, it mainly includes the following key technical nodes:

  • Using surveillance camera to obtain video information;
  • According to the information of the key parts of the human body, an algorithm is designed to judge the posture.
  • Provides algorithm judgment results and warns against long lying position.

When the normal lying position does not reach the alarm threshold, the system prompts “LIE”.

Normal lying position, reach the alarm threshold, the system prompt “Danger”

In addition, the system will also count how long the elderly usually exercise and rest. According to the statistical results, it will provide reasonable suggestions on rest and physical exercise, so that the elderly can take preventive measures and maintain a healthy life state at all times.

Young hacker dream, so that he has been running

Wei Zijun, born in 1999, is a senior majoring in computer science and technology at Qingdao University. When asked why he chose computer science as his major, Wei Zijun talked about his “hacker dream”. As a young boy, he was keen on science fiction movies, and the computer experts in the movies became his idols. Since then, the hacker dream has taken root in his heart.

With the spread of computer viruses, hacker seems to have become a synonym for “crime” in the public mind, but in Wei Zijun’s mind, “hacker” has a different meaning. In his opinion, the real “hackers” should use technology to change the world, do things that are both “cool” and “love”. They advocate freedom, are keen on exploration, are willing to share, and are the guardians of Internet security. Therefore, under the advice of his tutor, Wei Zijun chose the direction of network security and continued to move towards his dream of hacking.

In college, Wei Zijun, who has excellent academic performance, not only has solid theoretical knowledge, but also has strong practical programming ability. He has won the prize in the target detection algorithm competition of the school. In the interview, Wei Zijun shared his learning methods. In addition to learning programming classes at school, he would learn programming on the Internet in his spare time, such as Bilibili video programming classes and technical blogs. He believed that learning programming through video would be more intuitive and understandable than books, which is an efficient way to learn programming.

Wei Zijun likes a passage in the book “Hackers and Painters” by Paul Graham: “What hackers and painters have in common is that they are both creators. Hackers and painters, like composers, architects and writers, are all trying to produce good work. They are not doing research per se, although in the creative process they may discover some new techniques.” It is this spirit of creativity and technological exploration, he says, that has led to the creation of Health Monitor for Elderly Living Alone.

About the future, Wei Zijun said that he will always strive to be a runner who always keeps curiosity, love and perseverance, and change the world with technology.

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