As necessary items for patients’ lives, the design of drug packaging should not only meet the  needs of ordinary people, but also consider the special needs of visually impaired people when using  drugs. In view of the problems such as difficulty in identifying and information clarity when using drugs for visually impaired people, relying on the digital technology of intelligent packaging, through the intelligent  packaging cloud platform, the barrier-free design of drug packaging for visually impaired people was  studied from three directions: barrier-free drug information identification, barrier-free drug use process and barrier-free emotional adaptation. The advantages of easy intelligent packaging identification, humancomputer interaction and data analysis were given full play to help guide visually impaired people to use  drugs and achieve the design expectation of barrier-free drug use for visually impaired people.

Packaging digital to packaging as a carrier, through the electronic sensory components, so that packaging to achieve information interaction, data analysis, real-time communication and other functions. Covering barcode and two-dimensional code in pharmaceutical packaging is gradually becoming popular, but visually impaired people will have obstacles and difficulties when using the skills required within the range of vision, such as colour weakness of people with low sensitivity to colours, and it is difficult for blind people to know where the scanning code is, RFID and NFC technology provides visually impaired people with the possibility of information recognition without barriers. RFID is a non-contact automatic identification technology, which uses radiofrequency signals to identify commodities and electronic tags on the packaging to obtain relevant data. RFID is a non-contact automatic identification technology that uses radio frequency signals to identify electronic tags on the packaging of goods in order to obtain relevant data.

By installing RFID on pharmaceutical packaging, visually impaired people can access information about their medicines without scanning in a particular direction and without the need for a scanner. information, the visually impaired person does not need to scan in a particular direction, no need to visualise the mobile device can be used to RFID has low light requirements and can transmit information over long distances. RFID requires less light and can transmit information over long distances, making it easier for the visually impaired to identify drug information. NFC is a form of peer-to-peer communication. NFC is a kind of integrated inductive card chip with peer-to-peer communication function. NFC is a kind of integrated sensor chip with point-to-point communication function, which is implanted in the medicine package to meet the special needs of the visually impaired people. NFC chip technology is implanted in pharmaceutical packaging for the special needs of the visually impaired, and works in conjunction with RFID technology. Through mobile terminals, NFC can realise mobile phone payment, identification, checking and anti-counterfeiting functions. NFC is used in mobile terminals for mobile phone payment, identification, checking and anti-counterfeiting functions.

More and more mobile phones and mobile devices support the provision of NFC functions. More and more mobile phones and mobile devices support the provision of NFC functions, providing sufficient preconditions for NFC to be embedded in pharmaceutical packaging. Visually Impaired The use of smart packaging for medicines with NFC function is simple, no need to scan, very fast, and real-time data is available. It is very fast and easy to scan, and real-time data can be exchanged. The device can point to the pharmaceutical packaging to obtain labelling information such as packaging code, name, ingredients and so on. The smart terminal device can point to the package to obtain labelling information such as package code, name, ingredients, etc., and can also listen to the information with the accompanying Bluetooth headset, which can help to It can also use Bluetooth headphones to listen to the information, which helps to protect the privacy of patients.

2.2 Comprehensive Information Sensing Technology

To meet the needs of different groups of people, pharmaceutical packaging needs to have a selection of targeted sensing technologies for packaging. packaging, making full use of multiple combined sensing system. For example, for drugs with very strict restrictions on storage temperature, the drug packaging can use TTI technology. T T I technology can be used in intelligent packaging, which can effectively detect the temperature in the pharmaceutical packaging environment. The intelligent packaging can effectively detect temperature changes in the pharmaceutical packaging environment and make timely warnings, reducing the omission of manual inspection. It can effectively detect temperature changes in the pharmaceutical packaging environment, provide timely warning and reduce the omission of manual inspection. For drugs that cannot be exposed to light and oxygen for a long time, TTI technology can be installed. For drugs that cannot be exposed to light and oxygen for a long time, light-sensing devices and carbon dioxide sensors can be installed to detect the storage status and openness of the drugs in time. The storage status of the drugs and the use of the drugs after opening can be detected in time, and sound warning can be provided to avoid problems. The installation of light-sensitive devices and carbon dioxide sensors can detect the storage status of medicines and their use after opening in a timely manner. This ensures the safety of medicines by providing audible warnings of problems with medicines, avoiding improper use of medicines by visually impaired people with vision problems.