Networking: bus and TCP / IP can be networked. Bus still is now mainstream, networking is relatively simple, and the transmission distance is limited, which is a large-scale networking disadvantage. Compatible / standardization: As the audio and video codec algorithm, cabling standards, communication protocols, interfaces disunity caused compatible / standardization has been plagued by buyers, yet to this part of the leading authorities to promote the development of related standards. Audio and video transmission delay: mainly in the TCP / IP networking approaches, vendors should continue to optimize the algorithms, etc., so as to obtain a faster transfer speeds and audio and video quality. Noise control and echo cancellation: the main voice processing vendors still optimization algorithm, and the processor must provide a more flexible and powerful voice support. Integrate more functions: Some users think intercom products duty to abide by function as simple as possible; and some users want to integrate more functionality. In response, manufacturers should seek truth from facts, correctly guide the user purchase consciousness. User-friendly design: mainly refers to the user interface of humanity, including the indoor unit door machine, buyers want the product to try to fool the operation, so that children and the elderly are easy to understand and easy to operate, such as: voice prompts during the operation, the family message etc; richer on-screen graphic interface, not just text prompts. Better quality: mainly exist sharpness, color, saturation and other issues intercom color display. According to buyers response, some manufacturers in order to save production costs, choose some second-hand screen, developers and contractors do not know. Usually within a year is not the problem, you may want to replace all these screens a year later. Chapter 2: znlin positive Linlou Yu intercom paralyzed rate in the where? Cost reduction: current analog intercom products, although the market is still the mainstream, but it is the future of digital intercom trends. But compared to the price, the price of digital products will be much higher than analog, which is one of the reasons the current popularity of digital products difficult. So, how to reduce the cost of digital products is an urgent need to solve the problem of vendors. Three, znlin positive 林楼宇 intercom system "paralyzed" high sum up, users of these products, there are three categories: First, the government, enterprises and institutions of the alarm system, and second, alarm systems in public places, the third is znlin community residents n Linlou Yu intercom, alarm system. The former two systems intact is greater than the latter, mainly because they have a more professional system maintenance company or staff. But an interesting phenomenon is that as a positive Linlou Yu intercom system using znlin community residents who are not buying the product directly, but rather znlin positive Linlou Yu intercom system "paralyzed" the highest rate. Problem in the end what? 1, consumers have no right to choose products znlin positive Linlou Yu intercom system in the domestic market is a very special product: decide what products to buy, what brand, what features to the product, not a spender, but by real estate You decide. Therefore, users, consumers do not have the opportunity to choose products. Because users to buy a house, the real estate business has been installed. Quality of the product is good or bad, whether they like it, the consumer is fully informed. Leaving the user helpless, the quality of the house there are relevant laws to regulate, and znlin positive Linlou Yu intercom system is only house accessories, and no law to restrict. 2, znlin positive Linlou Yu intercom manufacturers rely on the real estate business it is this dependence unequal relationship, znlin very positive Linlou Yu intercom manufacturers understand what real estate products, znlin positive Linlou Yu intercom enterprise to produce what kind of products to meet the growing demand for real estate. Both on the yuan set of high-end products, there are dozens of yuan a common product. Some of anonymity znlin positive Linlou Yu intercom manufacturers that now faced with a dilemma, why? znlin positive 林楼宇 intercom manufacturers are dependent on the development of real estate and development, and even can say, if the real estate development stalled, znlin positive 林楼宇 intercom manufacturers are difficult to develop, so we own products in the market has no right to speak. 3, manufacturers helpless become a "scapegoat" in the construction of the entire intelligence community, only znlin positive 林楼宇 intercom products which can reach every family and can establish the most direct contact and Administration; by Central Management Services system remotely interactive, so consumers can see the most immediate use is znlin positive 林楼宇 intercom door and indoor units, a problem regarded the "responsibility list" posted on znlin positive 林楼宇 intercom products. In fact, znlin both positive Linlou Yu intercom system door machine, indoor unit also includes cables, power supplies and other products, more important is the system design, construction, as long as a link in the chain systems can not normal operation. Moreover, real estate prices down again, causing znlin positive 林楼宇 intercom manufacturers but also bear the responsibility for the whole system is good or bad in the profits rare cases, the system has become a "scapegoat" and selling real estate After walking down the number of house Spank money smiling. 4, how to protect the interests of consumers is a problem with the product purchase by the consumer is not a product, not to mention this is a highly integrated system, involving all aspects of the system there is a problem can not know who is the problem. Shenzhen Sheng Boer Great Wall Technology Co., Ltd. Deputy General Manager Liu believes that products are life provisions, some system operation is part of life long paralysis, the system transformation stage. Alarm during the warranty period, the division of responsibilities znlin positive 林楼宇 intercom system paralyzed from probability to sort should be: product manufacturers, system installation engineering, property management companies, residential property owners. Product manufacturer responsibility, mainly in poor product quality or technical performance standards do not use requirements, causing system failure frequently, causing system crashes; responsibility mainly belongs to the engineering of the system design is unreasonable, construction wiring there are risks, using counterfeit products, resulting in poor service small problems caused big problems like; property management company or system maintenance is the responsibility of the company's routine maintenance of the system is poor, low technical quality of the system are not familiar with, there is no proper system maintenance fund operation and maintenance; possibility to owner responsibility is very small. So, most of the systems are paralyzed because they can not project integrators and product manufacturers, and the property company has no system maintenance, resulting in consumer rights have been infringed. Fourth, pay attention to routine maintenance system by the above analysis shows, znlin positive Linlou Yu intercom, alarm system may be multi-party liability paralysis caused. So, we should first guarantee the product quality, at the same time, works construction should be standardized, and finally, the system routine well maintenance is also necessary. While vendors provide products, but it does not directly face the product's users - the end-user. Between manufacturers and engineering companies in the property, the user is concerned, contractors is to represent manufacturers, engineering and construction quality of the attitude of the project, a direct impact on households of vendor products brand impression. For manufacturers in terms of engineering is the user's window, and manufacturers through this window that the needs of users, and user feedback. So, between the vendors and engineering companies play a key role in the property. In addition, in many cases tenants are faced with contractors rather than brands, so when there is a problem of equipment when tenants first is reflected to the contractors. Once the problem is not resolved for a long time, the reputation of engineering companies will be some impact, which leads to contractors hesitant to cooperate with a number of small brands, choosing instead to Honor brand manufacturers more than five years, which would directly limit the small brand development. Therefore, manufacturers should handle the relationship between good and contractors, and from the outset a clear responsibility to implement the party and party issues, avoid product has problems remain unresolved situation occurs. So, how to balance the relationship between the three, good coordination is znlin positive 林楼宇 intercom manufacturers and maintenance powerful guarantee smooth operations. Three years ago, equipment manufacturers have closed down or installed equipment has been discontinued some big electronic products, such as major appliances, and maintenance period usually in three to five years, although probably only one year of free maintenance. Similarly, for znlin positive 林楼宇 intercom devices, and maintenance of a project at the time of contract signing, and often will be included as an important part of it. However, due to the industry reshuffle or change the direction of business development, leading many SMEs have closed down or forced to stop the original brand of equipment, transition to other industries, this way, the original has been put into use znlin positive 林楼宇 intercom products The work will not be guaranteed after-sales maintenance. Since the agreement between the different brands are not compatible and can not only replace broken equipment to other brands, only to be replaced a unified whole building products, and re-wiring installation to normal use.