Wireless detectors and alarm systems have the convenience of installation and use, but also have their own defects. However, as the technology is updated and mature, the situation is rapidly changing. This article will discuss some of the current status and future trends of wireless detectors.
The status of the use of wireless detectors According to the classification of services after installation, the alarm market can be divided into non-service retail market and service professional market.
At present, the retail market is mainly based on electronic markets and online retail sales. The market is currently dominated by wireless products. Products have low requirements for false positives and are sensitive to price. China's mainstream market is still low-priced products.
The professional market is represented by alarm service centers and real estate properties. When an alarm occurs in such markets, special service personnel will rush to the scene to guide or assist the user in handling the police situation. Some alarm service companies have already introduced insurance companies as third-party partners. The customer pays the loss, so this market has high requirements on the stability of the system. At present, this area is mainly based on wired products.
The development and application of new technologies The development of wireless communication technology In the field of long-distance communication, from 2G to 3G, the current mobile 4G experiment has begun, and the stability of the wireless network (security, reduced packet loss, crosstalk, etc.) has increased dramatically. At the same time, due to the increase in transmission speed, more content can be transmitted. On this basis, the application of telecommunication has already had a technical basis.
In terms of communication between the detector and the host, not only the digital codec has been developed on the basis of the original frequency to enhance security, the development and application of 2.4G on frequency, and Zigbee's bidirectional communication-driven wave has made it possible for the detector to be located. The host monitors the status in real time and can query feedback. This point has already been used in the same way as wired products.
More accurate features to identify the current cause of false positives of wireless detectors, on the one hand, are the susceptibility of existing wireless signals to interference, and this feature is already improving as wireless technology improves.
On the other hand, it is not accurate enough to identify the characteristics of the target object. For example, a passive infrared detector recognizes the temperature difference between the object and the background environment, and the target object needs relative displacement, although this feature includes the characteristics of the intruder. However, there are still some deficiencies. For example, if the air (background) and cloth and iron are also heated, the temperature rises due to the difference in specific heat. Therefore, if the curtain is swung within the detection range, the relative displacement is provided. The characteristic is that under certain conditions, false positives due to such reasons will occur; of course, there will be a method of adding microwave detection methods to reduce false positives on the basis of the original, which is also a way to seek more accurate feature recognition. .
At present, with the help of the concept of the Internet of Things, sensors have become more important. Nowadays, there are more resources devoted to the research of sensing than in the past, and the fundamental of sensing is the recognition of feature recognition. This area of ​​research must be developed in depth. It will drive the progress of the detector.
Applications of environmentally friendly energy and low-power design applications Solar, wind and other renewable energy sources The efficiency of power conversion has made it possible for smaller energy conversion boards to supply power to the equipment. A few years ago, the standby power at the milliampere level was already designed for low power consumption. The reason for the improvement of components and components can be reduced to the micro-ampere level. Both of these trends have finally combined the detector with environmental protection and energy conservation. At the same time, due to the solution to the power supply cable problems, some previous high-power detectors have been wired wirelessly. The semi-wired state of the power supply translates into a true wireless detector.
The Wireless Trends In summary, I firmly believe that wireless will be the trend of future alarm products. Of course, due to the steady pursuit of professional markets, there will be a time course for accepting wireless products. This also reminds us that despite the application of new technologies, People, but the security industry can not lead the trend like Apple, security products, performance, stability is always the first.
The status of the use of wireless detectors According to the classification of services after installation, the alarm market can be divided into non-service retail market and service professional market.
At present, the retail market is mainly based on electronic markets and online retail sales. The market is currently dominated by wireless products. Products have low requirements for false positives and are sensitive to price. China's mainstream market is still low-priced products.
The professional market is represented by alarm service centers and real estate properties. When an alarm occurs in such markets, special service personnel will rush to the scene to guide or assist the user in handling the police situation. Some alarm service companies have already introduced insurance companies as third-party partners. The customer pays the loss, so this market has high requirements on the stability of the system. At present, this area is mainly based on wired products.
The development and application of new technologies The development of wireless communication technology In the field of long-distance communication, from 2G to 3G, the current mobile 4G experiment has begun, and the stability of the wireless network (security, reduced packet loss, crosstalk, etc.) has increased dramatically. At the same time, due to the increase in transmission speed, more content can be transmitted. On this basis, the application of telecommunication has already had a technical basis.
In terms of communication between the detector and the host, not only the digital codec has been developed on the basis of the original frequency to enhance security, the development and application of 2.4G on frequency, and Zigbee's bidirectional communication-driven wave has made it possible for the detector to be located. The host monitors the status in real time and can query feedback. This point has already been used in the same way as wired products.
More accurate features to identify the current cause of false positives of wireless detectors, on the one hand, are the susceptibility of existing wireless signals to interference, and this feature is already improving as wireless technology improves.
On the other hand, it is not accurate enough to identify the characteristics of the target object. For example, a passive infrared detector recognizes the temperature difference between the object and the background environment, and the target object needs relative displacement, although this feature includes the characteristics of the intruder. However, there are still some deficiencies. For example, if the air (background) and cloth and iron are also heated, the temperature rises due to the difference in specific heat. Therefore, if the curtain is swung within the detection range, the relative displacement is provided. The characteristic is that under certain conditions, false positives due to such reasons will occur; of course, there will be a method of adding microwave detection methods to reduce false positives on the basis of the original, which is also a way to seek more accurate feature recognition. .
At present, with the help of the concept of the Internet of Things, sensors have become more important. Nowadays, there are more resources devoted to the research of sensing than in the past, and the fundamental of sensing is the recognition of feature recognition. This area of ​​research must be developed in depth. It will drive the progress of the detector.
Applications of environmentally friendly energy and low-power design applications Solar, wind and other renewable energy sources The efficiency of power conversion has made it possible for smaller energy conversion boards to supply power to the equipment. A few years ago, the standby power at the milliampere level was already designed for low power consumption. The reason for the improvement of components and components can be reduced to the micro-ampere level. Both of these trends have finally combined the detector with environmental protection and energy conservation. At the same time, due to the solution to the power supply cable problems, some previous high-power detectors have been wired wirelessly. The semi-wired state of the power supply translates into a true wireless detector.
The Wireless Trends In summary, I firmly believe that wireless will be the trend of future alarm products. Of course, due to the steady pursuit of professional markets, there will be a time course for accepting wireless products. This also reminds us that despite the application of new technologies, People, but the security industry can not lead the trend like Apple, security products, performance, stability is always the first.
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