This "young hacker" uses black technology to protect the elderly living alone

In February 2021, the "New Content and New Interaction" Global Video Cloud Innovation Challenge kicked off. The competition is hosted by Intel and Alibaba Cloud, in cooperation with Youku's strategic technology, and jointly hosted by the Tianchi platform and the Alibaba Cloud Video Cloud team. Since the start of the competition, more than 4,600 contestants from all over the world have signed up for the competition. We have selected outstanding cases and moving stories from the contestants to enter the world of video cloud entrepreneurs and innovators.

On May 11, the National Bureau of Statistics released the seventh national population census-the proportion of the population aged 60 and above in my country reached 18.70%, of which the proportion of the population aged 65 and above reached 13.50%, how to make the elderly "satisfied for the elderly" "Being dependent on the elderly" has become a hot topic in the society.

Wei Zijun, a senior from Qingdao University, focused his attention on the issue of elderly care at home, and developed a health monitoring system for the elderly living alone. This system can constantly monitor the living conditions of the elderly at home to better ensure that they live alone. For the safety of the parents, children can always pay attention to their parents’ home conditions through the remote control system.

Video cloud + AI, technology makes the elderly living alone safer

With the increase of population mobility and the increase of the elderly population, empty-nest families and elderly people living alone have become problems faced by many families, and news of accidents involving elderly people living alone is often reported in the news. The huge work and life pressures of young people make them neglect to care for and communicate with their parents. Wei Zijun, who is studying abroad, always sees social news about elderly people living alone, and can't help worrying about the elderly at home, so he developed a video for use. Cloud and AI technologies help elderly people living alone improve home safety and health monitoring products.

During his research, Wei Zijun found that many products on the market are mostly limited to the monitoring function of the camera, but the working mode of the 996 young people in big cities makes it difficult for them to stay in front of the camera 24 hours, so the time outside the camera How can we discover the "potential danger" of parents living alone in time? This seems to be a pain point problem faced by the industry.

Seeing the recruitment of this video cloud global innovation challenge, Wei Zijun believes that this is an opportunity to realize his ideas. He aimed at video + AI technology, and developed a health monitoring system for elderly people living alone. This system uses the human body posture image obtained by the camera, coupled with the Intel OpenVINO toolkit processing model, which can analyze the information of the key points of the body and judge the human body. It can clearly and accurately distinguish whether the object in the video is in the "standing" or "lying flat" state, and count the length of the lying position. If the lying position is maintained for more than the set threshold, a warning will be processed.

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

• Use surveillance cameras to obtain video information;
• Extract the key point information, and design an algorithm to judge the posture according to the information of the key parts of the human body;
• Provide algorithm judgment results and warn of long-term lying position.

Normal lying position, when the alarm threshold is not reached, the system prompts "lie"

Normal lying position, when the alarm threshold is reached, the system prompts "danger"

In addition, the system will also count the length of the elderly’s usual exercise and rest, and provide reasonable rest and physical exercise suggestions based on the statistical results, so that the elderly can take precautions and maintain a healthy life state at all times.

The hacker dream when he was young kept him running

Wei Zijun, born in 1999, is currently a senior student majoring in computer science and technology at Qingdao University. When asked why he chose to major in computer science, Wei Zijun talked about his "hacker dream". As a young man, he was keen on science fiction movies. The computer masters in the movies became his idols. Since then, the seeds of the hacker dream have been in him. His heart began to take root.

With the proliferation of computer viruses, hackers seem to have become synonymous with "crime" in the minds of the public, but in Wei Zijun's mind, "hackers" have a different meaning. In his view, real "hackers" should use technology to change the world and do things that are both "cool" and "love". They advocate freedom, are keen to explore, and are willing to share, and they are the guardians of Internet security. Therefore, under the suggestion of his instructor, Wei Zijun graduate student chose the direction of network security and moved on toward his dream of hackers.

In university, Wei Zijun, who has excellent grades, not only has solid theoretical knowledge, but also has strong practical programming ability. He has won an award in the school's target detection algorithm competition. In the interview, Wei Zijun shared his learning methods. In addition to learning programming classes at school, he will learn programming online during his spare time, such as Bilibili video programming classes, technical blogs, etc. He believes that learning programming through videos will be more intuitive than books. Easy to understand, is an efficient way to learn programming.

Wei Zijun likes a passage in the book by Paul Graham, the author of "The Hacker and Painter": "What hackers and painters have in common is that they are creators. Like composers, architects, and writers, hackers and painters are both Trying to create excellent works. They are not essentially doing research, although in the process of creation, they may discover some new technologies." He said that it is this kind of creativity and technical exploration spirit that allows the elderly living alone to monitor the health of the elderly. This work was born.

Regarding the future, Wei Zijun said that he will always work hard to be a runner who is always curious, loves and perseveres, and uses technology to change the world.

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