Entries by administrator

Introduction of sound

A speaker is a device that restores an electrical signal to a sound signal, and the authenticity of the restoration will be an important criterion for evaluating the performance of the speaker. According to different sounding principles and internal structures, speakers can be divided into several types: inverted, closed, flat, horn, labyrinth, etc. The most […]

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The battle between speaker intelligence and sound quality

In the speaker industry, there are two major technical schools, one is smart speakers focusing on artificial intelligence; the other is traditional sound quality speakers that focus on sound quality. ​​ The two have different emphases due to differences in performance and structure. Smart speakers are developed due to artificial intelligence, and they focus on […]

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Application and development trend of access control system

1. Application of access control system Application of Access Control System in Office Building The installation of access control in the company can effectively prevent foreign salesmen and other miscellaneous personnel, ensure the safety of the company and employees’ property, and improve the corporate image. It can improve the work efficiency of the personnel department […]

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Classification of access control systems

What is an access control system? As the name implies, the access control system is a system for controlling the entrance and exit passages. It is developed on the basis of traditional door locks. Common access control systems include: password identification access control system, credit card identification access control system, biometric access control system, etc. […]

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