Since the launch of the new medical reform, it has accelerated the informationization and intelligence of medical and health care. Smart medical care is becoming a hot spot in the entire medical industry, helping to improve the problem of medical treatment and improve the efficiency of medical institutions. People can enjoy medical care in the community or at home. service. The miniaturization, informationization and intelligence of medical terminal equipment provide conditions for the development of the intelligent medical industry. Smart medical care is a "gold mine" and a "sunrise industry" with great potential for all links of medical equipment manufacturers, chip companies, and application development.
According to the latest statistics, the number of myopia in China is not only as high as 450 million, but also tends to increase year by year. At present, the prevalence of myopia in young people has already ranked first in the world. Among them, the situation of teenage myopia is particularly worrying: the 7- to 12-year-old primary school students, the 13- to 15-year-old junior high school students, the 16- to 18-year-old high school students, and the 19- to 22-year-old college students have poor visual acuity. It is 45.71%, 74.36%, 83.28% and 86.36%. There are two main factors that cause high-myopia in adolescents: on the one hand, the hereditary nature of myopia, for example, both parents are highly myopic, so the chance of myopia is much higher than that of the average teenager; on the other hand, the use of mobile phones and tablets Electronic products such as computers use eyesight problems caused by poor eye habits such as excessive eye time and incorrect eye posture.
Enhancing the awareness of prevention and control of myopia in young people, strengthening the popularization of prevention and control knowledge of myopia, and frequent myopia examinations are particularly important for alleviating the problem of myopia in our country. The intelligent myopia analyzer can quickly and easily detect whether my eyes are nearsighted, as well as the degree of myopia, reminding individuals to correct bad habits in learning and life, and decide whether to proceed with further treatment based on the test results.
At present, there are two main ways of myopia examination: health examination and ophthalmology examination, but both of these methods require individuals to go to the hospital or eye hospital to do the corresponding tests, which will take a lot of time and increase medical expenses. Today's society is accelerating, personal pressure is relatively large, and most of them are busy with work and life. It is difficult to convince individuals to do eye examinations on a regular basis. If there is a portable myopia detection device, the individual can perform myopia detection intuitively, quickly and accurately at home, which will greatly save time and medical expenses, and has a very good market prospect.
Foreign countries are already making products, but the difficulty in making products lies in how to design a stable ARM Android system platform and integrate medical related functions to the platform. The advantage of professional medical companies lies in the integration of medical equipment, but the lack of the ability of the underlying hardware design and software development, in the case of large-volume shipments, product stability is uncontrollable, the risk is relatively large.
Based on the above-mentioned needs and difficulties of the medical industry, Chenhan Electronics and internationally renowned medical companies jointly developed the Andoird platform intelligent myopia analyzer using the i.MX6Q platform. The i.MX6Q platform provides a rich interface that combines mulTImedia (camera, HDMI, LCD, video, audio), WIFI/Ethernet, USB, SD/TF and other functions. It has the advantages of short development cycle, reliable performance and fast processing speed.
The block diagram of the i.MX6Q architecture is shown in Figure 1:
figure 1
i.MX6Q integrates 4 core processor, MIPI/CSI camera interface, 8192*4096 pixels, display interface is 24-bit RGB interface, up to 2G RAM memory, which can meet the requirements of high image pixel and fast detection speed.
The implementation of the myopia analyzer is roughly as shown in Figure 2:
figure 2
1. Button is a channel for interacting with the user. The user can control the camera to collect the eye image through the multiple button buttons on the analyzer, the system sleeps, wakes up, switches on and off.
2, Display LCD can perform camera photo preview, display UI interaction, camera is responsible for collecting eye images.
3. Battery supplies power to the analyzer. As a portable device, battery is essential.
4. Wifi/Ethernet provides network support.
The main principle of intelligent myopia analyzer, using the camera of Chen Han electronic development platform i.MX6Q, quickly capture the eye image, combined with the human eye recognition algorithm of the application layer program, to detect the myopia of the eye, software flow chart 3.
image 3
The application layer program supports database operations, and a corresponding database is established for each user. After the end of myopia analysis, the current myopia state is displayed, and the history detection data is combined to display the development trend of myopia, which can more intuitively remind the user to pay attention to eye care. The visual operation interface allows the entire inspection work to be completed quickly. This analyzer can be used by medical institutions or individuals. Individuals can share the test results with qualified medical staff through the Internet of Things WIFI to get timely health care and treatment guidance.
In today's Internet of Things era, the mobile interconnection between devices will become more and more close. This myopia analyzer integrates intelligent and information functions, reflecting the development trend of smart terminal devices, especially the advantages of portability. Positive feedback from the market, thus winning the market opportunity.
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