Access control voice intercom with intelligent recognition

The building voice intercom system has been used for more than 20 years. Since 1992, manufacturers and manufacturers of voice intercom systems in foreign countries have successively opened up markets in China. So far, there are nearly 10 foreign brands on the mainland, and domestic brands have also appeared one after another. Guangzhou Sizheng, which has the highest market occupancy rate for building intercom systems, has senior technical staff on audio monitoring. There are applications for access control intercom applications. What are the shortcomings? What are the trends in future development? Problems were answered.

First, the crisis of access control intercom

Anti-theft security mainly depends on air defense, physical defense and technical defense. Civil Defence has owners, property and security personnel; physical protection has protective fences, security doors; technical protection has access control intercom system, monitoring of closed-circuit television, 24-hour inspection and monitoring and other security systems. From the complaints of the owners, it can be found that the main reason for the virtual use of the intercom system is mainly civil air defense and technical protection, that is, the owners lack security awareness, the management of the property company is incomplete, and the access control intercom system has its own defects.

(I) Owners lack awareness of safety precautions

The lack of safety awareness among owners is one of the causes of hidden dangers in the community, which is mainly manifested in the following two aspects:

First, there is a lack of understanding of the access control intercom system. There are many owners who do not understand how to use the access control system and how to maintain it. Frequent erroneous operation and improper preservation of the access control card are caused by the degaussing failure. There are also some owners and occupants who have forgotten to carry the access control card and sacrifice their future safety. Go for temporary convenience and destroy the access control intercom system. Second, there is a lack of awareness of self-protection. Some homeowners can easily tell their relatives, friends, decorators, hourly workers, etc. about the access code for the convenience of the moment; or when they enter the secret to open the unit door, they do not pay attention to precautions. The password is stolen by a stranger.

(2) Poor management of property and security personnel

In the complaining voice of the owners, it was found that many “miscellaneous people” were able to move in and out because of the insecure password; there were also some strangers trailing along with the owners. For these strangers, there are many security personnel who do not cross-examine obstacles and allow them to avoid trouble. Each type of security product has its own defects, so when defects occur, they need to be remedied in an artificial way. If the remediation is not correct, it is not just security products that are in use.

Second, the four major lack of access control intercom

(1) Compatibility/standardization: The concept of multi-system compatibility includes two meanings. The first is the compatible integration of different technologies in the same type of system; the second is the system integration of different types of systems and different technologies. The first is the compatible integration of different technologies of similar systems. Multi-system compatibility is mainly reflected in the different levels of the community, which can integrate different levels of systems to meet the needs of various applications. We know that now a large-scale community may incorporate multiple levels, small high-rises, high-rise buildings, and even villas, which are located in different grades. Second, system integration of different types and different technologies. The compatibility/standardization issues caused by the inconsistency of audio and video codec algorithms, cabling standards, communication protocols, and interfaces have plagued buyers. This part is still waiting for relevant departments to drive the development of relevant standards.

(II) Anti-jamming capability: Anti-jamming capability is a common headache for the building intercom industry. In terms of product quality, the ability to resist interference is urgently needed, especially in some areas where thunderstorms occur frequently. In the field construction, improper selection of wires and irregular wiring may also cause various interference problems. Therefore, it needs to attract the attention of product suppliers and construction parties.

(III) Cost reduction: At present, the cost of sales, engineering installation and service of large-scale manufacturers is high. With the process of product standardization, project installation and service socialization, the product cost needs to be gradually reduced.

(4) Humanized design: Intercom products, or smart home products, are products for the general public. The humanization of use is one of the most important features. The humanized design here mainly refers to the humanization of the operation interface, including the indoor unit, the door machine, etc. The purchaser hopes that the product will be as fool-proof as possible, so that children and the elderly can understand operations, such as language prompts and family messages during operation. Etc.; screen graphics interface is more abundant, not just text prompts. Pure IP digital intercom products have strong functions and many menus, so the humanization of the operation interface and operation is particularly important.

Third, the strategy of intercom

The access control system has been greatly improved in its application. In the residential communities and commercial buildings that spring up, it seems that the entrance guard system has injected a dose of ***. At the same time, the product's application type also transitioned from contactless to non-contact, from magnetic stripe cards and IC (smart) cards to biometrics.

First of all, in the audio technology of access control intercom, the traditional audio technology has been upgraded to digital AEC audio technology independently developed by SIZHENG. The upgraded product is characterized by high performance, low cost and low energy consumption, which can completely eliminate echo. Intelligent digital FPGA dual-core wide dynamic noise reduction algorithm, can clear the sound in a complex environment. In the next few years, it will also be able to promote the improvement of the competition mechanism for the survival of the fittest among the domestic access control companies, so that the market will become more standardized and rational.

After nearly ten years of development, the access control system is now quite mature in function development and market application. At present, each access control manufacturer gradually turns its attention to how to improve the added value of the access control system, hoping to pass the access control system. Integration with other systems produces more features such as video recognition, electronic patrols, and visitor services. In this development trend, the integration of access control systems with video surveillance systems has become a hot issue for access control manufacturers. At the same time, the stability and integrability of access control software is getting higher and higher. The future access control system will also be a comprehensive control security. platform.

Finally, it is worthy of recognition that in today's security systems in the future development, it is not an era in which companies can cover all applications. Access control providers will work more and more diversifiedly with contractors, software developers, security companies, and real estate companies. Under the stimulation of different application requirements from these different partners, access control systems will also become more intelligent. New life.