Access control voice intercom with intelligent recognition

The building voice intercom system has been in use for over two decades. Since 1992, international manufacturers have gradually entered the Chinese market, and today there are nearly ten foreign brands operating on the mainland. At the same time, a number of domestic brands have also emerged, with Guangzhou Sizheng holding the highest market share in the access control intercom sector. These systems are equipped with experienced technical staff and have applications in access control, but what are their limitations, and where is the industry headed? First, the challenges facing access control intercom systems. Security in residential areas typically relies on three main strategies: civil defense, physical protection, and technical measures. Civil defense involves property owners, management, and security personnel; physical protection includes fences and security doors; and technical protection involves access control intercoms, CCTV monitoring, and 24-hour surveillance. From owner complaints, it's clear that the main issue lies in the lack of awareness among residents and incomplete management by property companies, which leads to the underutilization of these systems. (1) Lack of Security Awareness Among Residents Many homeowners do not fully understand how to use or maintain the access control system. This often results in improper operation, damage to access cards, and even the loss of access privileges due to incorrect handling. Some people forget their access cards and choose to bypass the system for convenience, risking their own safety. Additionally, some individuals share access codes with friends, contractors, or service workers without considering the potential security risks. This can lead to unauthorized entry and vulnerabilities in the system. (2) Inadequate Management by Property Companies Complaints from residents reveal that many unregistered individuals manage to enter and exit the premises because passwords are not properly secured. In some cases, strangers follow residents into the building, and security personnel sometimes fail to check them thoroughly. When system flaws occur, manual intervention is needed. However, if this is not done correctly, it can further compromise the effectiveness of the security system. Second, the four major shortcomings of access control intercom systems. (1) Compatibility and Standardization Multi-system compatibility refers to both the integration of different technologies within the same system and the integration of various systems and technologies. As communities grow in size and diversity, they may include different types of buildings—such as high-rises, low-rise apartments, and villas. This requires systems that can adapt and integrate across different levels. However, issues like inconsistent video/audio codecs, cabling standards, communication protocols, and interfaces still create problems for users. Standardization efforts are still ongoing and require government support. (2) Anti-Interference Capability Anti-jamming capability remains a challenge in the building intercom industry. Poor product quality, especially in regions prone to thunderstorms, can cause signal interference. During installation, using improper wiring or poor cabling practices can also result in performance issues. Both manufacturers and installers must pay more attention to this aspect. (3) Cost Reduction Currently, the cost of sales, installation, and after-sales services for large manufacturers is relatively high. As products become more standardized and installation processes become more efficient, costs should gradually decrease. (4) Human-Centered Design Intercom and smart home devices are meant for everyday users. Therefore, user-friendly design is essential. This includes intuitive interfaces for indoor units and door stations, clear language prompts, and graphical displays rather than just text-based messages. For IP digital intercoms, which offer advanced features, a simple and easy-to-use interface is crucial for all age groups, including children and the elderly. Third, the future direction of access control systems. Over the past decade, access control systems have evolved significantly. They have moved from traditional contact-based systems to non-contact ones, such as biometric identification. The audio technology used in these systems has also advanced, with Sizheng developing its own digital AEC technology. This upgrade offers better performance at lower costs and eliminates echo effectively. Intelligent noise reduction algorithms ensure clear sound even in noisy environments. In the coming years, this technological advancement will drive competition among domestic companies, leading to a more regulated and rational market. Today, access control systems are well-developed in terms of functionality and application. Manufacturers are now focusing on increasing the value of their systems by integrating them with other security solutions, such as video recognition, electronic patrols, and visitor management. As the industry moves forward, access control systems will become more integrated and intelligent. Collaboration between access control providers, contractors, software developers, and real estate companies will be key. With diverse requirements from different partners, access control systems will continue to evolve, bringing new possibilities and smarter security solutions to the future.

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