Compared to other projects, digital building intercom systems require significant investment, have long payback periods, and demand high levels of technical expertise, experience, and maintenance. Weaknesses in any aspect can lead to instability in the intercom system. Based on the current situation, the following are the main shortcomings of building intercom systems:
I. Anti-interference Ability: Anti-interference is a common headache in the current building intercom industry. In terms of product quality, anti-interference capability is in urgent need of improvement, especially in areas with frequent thunderstorms. Improper cable selection and non-standard wiring during on-site construction can also lead to various interference problems. Therefore, this requires attention from both product suppliers and contractors.
II. Signal Attenuation: Video amplifiers are often used to solve this problem, but this can also lead to distortion. Improper cable selection can also cause signal attenuation.
III. Networking Functionality: Both bus and TCP/IP can be used for networking. Bus technology is still the mainstream, offering simpler networking functionality but with limited transmission distance, which is unfavorable for large-scale networking.
IV. Compatibility/Standardization: Compatibility/standardization issues caused by inconsistencies in audio and video codec algorithms, wiring standards, communication protocols, and interfaces have always plagued purchasers. This requires relevant departments to take the lead in promoting the development of relevant standards.
V. Audio and Video Transmission Delay: This is mainly an issue with TCP/IP networking. Manufacturers should continue to optimize algorithms to achieve faster transmission speeds and better audio and video quality.
VI. Noise Control and Echo Cancellation: This mainly involves the need for manufacturers to optimize algorithms in terms of voice processing, and processors need to provide more flexible and powerful voice support.
VII. Integration of More Functions: Some users believe that intercom products should simply perform their core function, with simpler being better; while others hope for more integrated functions. Manufacturers should be realistic and correctly guide user purchasing awareness.
VIII. Humanized Design: This mainly refers to the humanization of the operating interface, including indoor units and door units. Purchasers hope that products are as user-friendly as possible, easy for children and the elderly to understand and operate, such as voice prompts during operation, family messaging, etc.; richer screen graphical interfaces, not just text prompts.
IX. Better Image Quality: This mainly refers to issues such as clarity, color, and saturation of the display screens in color intercoms. According to feedback from purchasers, some manufacturers use second-hand screens to save production costs, without the knowledge of developers and contractors. Generally, there will be no problems within a year, but after a year, these displays may need to be replaced.
X. Cost Reduction: Although analog intercom products are still the mainstream in the market, digital intercoms are the future trend. However, compared to analog products, digital products are much more expensive, which is one of the reasons why digital products are difficult to popularize. Therefore, how to reduce the cost of digital products is an urgent problem that manufacturers need to solve.