At present, most security personnel still stay in the sense of “high definition†and “bandwidthâ€. In fact, HD can sometimes be a complete carrier and can be used with other technologies to introduce more innovative innovations. The following is a brief discussion on practical applications of HD network cameras and practical collisions.
The concept of the Internet of Things (IoT) concept was introduced in China as early as 1999, when it was called a sensor network. It is defined as: through information-sensing equipment such as radio frequency identification (RFID), infrared sensors, global positioning systems, laser scanners, etc., according to the agreed protocol, connecting any item to the Internet for information exchange and communication in order to realize intelligence A network concept that identifies, locates, tracks, monitors, and manages. The "Internet of Things concept" is a network concept that extends and extends its user's end to any item and item on the basis of the "Internet concept" for information exchange and communication.
The term “Internet of Things†is widely recognized at home and abroad as the earliest MIT Auto-ID Center Professor Ashton proposed when he researched RFID in 1999. In the report of the same name issued by the International Telecommunication Union (ITU) in 2005, the definition and scope of the Internet of Things have changed, and the coverage has been greatly expanded. It no longer refers only to the Internet of Things based on RFID technology.
Since Premier Wen Jiabao proposed "Perception of China" in August 2009, the Internet of Things was formally listed as one of the country's five emerging strategic industries and was included in the government work report. The Internet of Things has received great attention from the whole society in China. Its degree of concern is unmatched in the United States, the European Union, and other countries.
The concept of the Internet of Things is not so much an external concept as it is already a concept of “Made in Chinaâ€. Its coverage is advancing with the times and has gone beyond the scope of the 1999 Professor Ashton and the 2005 ITU report. The Internet of Things has been labeled "Chinese style."
Combination of high-definition camera and radio frequency technology At present, radio frequency technology has emerged with practical application of high-definition video. Because the network camera has a communication (COM) interface, the network camera has control data capture and conversion capabilities. Therefore, it can be connected to an external decoder through the COM interface. Use the COM port to receive data transmitted from the RF, so that the combination of image and radio frequency. At present, such equipment has been applied in some factories and office buildings. For example, this technology can replace fixed punching and illegal person identification (for example, it can give legitimate people wearing only the marked RFID card), and the combination of these two items can help improve many of the more tedious tasks in practice. In order to better reflect the corporate image, it also reflects the value of high intelligence and high technology.
Linkage with various alarm devices The traditional network camera has an alarm (ALARMI/O) interface. This alarm signal connection can handle the switching level. Therefore, the terminal of the device can also be connected to provide switching power. Flat various types of alarm sensing equipment. After the network camera receives this data, it can encode and process it, and then send it to the TCP/IP network. Through the application software, various alarm response signals can be set in response, such as sound, light alarm and alarm recording.
Most of the linked network cameras with mobile devices have the capture function, and each network camera has its own independent IP address, and can directly connect with the PC, remote management platform, and other network connections. We can configure the built-in email client in the network camera. When it is able to access the Internet, the network camera device can also send the captured picture when the alarm is triggered to the specified mailbox via Email. It can also be connected via a COM port to a device that can connect to a SIM card, and can be sent to a designated mobile phone terminal using a short message or a multimedia message. In this way, real-time and intelligent monitoring can be achieved while using only a small amount of bandwidth and cost.
In conjunction with the detection function device, in the construction of the safe city, it is possible to make use of the intelligent system attached to the remote monitoring to provide feedback in a place that is prone to danger and the personnel arrangement is difficult. Such as urban fire prone areas, flood level, dangerous buildings, brittle fractures, dangerous road sections, railways and highways that are prone to landslides, avalanche sections, seismological stations detecting earthquakes, etc., can be set up for detection, identification, and preemption. Intelligent alarm function. In general, devices with temperature detection can detect local temperature changes and trigger alarms; a camera with a cross scale can be installed to detect when the water level is moved to a warning scale on the cross scale and automatically start video display and pre/alarm. So that on-duty personnel can be viewed and processed according to sound and light alarms for the first time to prevent hazards caused by various disasters. Applications such as these greatly reduce the risk and uncertainty of human operations and provide a way to provide stable and reliable data.
The application of motion detection in the intelligent security monitoring system must have at least video motion detection pre/alarm functions, especially in banks, jewelry stores, shops, warehouses, accounting rooms, armory rooms, security rooms, museums, oil depots, and All important monitoring sites need to be set up where safety requirements are high. Of course, this function must be able to eliminate some of the objective interference, especially in the complex weather conditions such as rain, snow, fog, windy, etc., to accurately detect and identify the movement of a single object or multiple objects. Including its direction of movement, movement characteristics. In addition, the detection area of ​​video movement can also be turned on or off individually, which is convenient for adapting to the requirements of entrances, exits, parking lots, and the like in special time periods. When detecting and recognizing the intrusion of a moving human body that is not recognized, the video display and pre/alarm are automatically started, so that the on-duty personnel can perform the viewing and processing according to the sound and light alarm at the first time. In addition, PTZ control commands can be automatically sent according to their movements so that cameras with pan/tilt heads can automatically track objects. If the human body exceeds the surveillance range of the camera, it can also automatically notify other cameras in the area where the human body is located to continue tracking until the criminals are caught.
The intelligent aspect cuts in because the front end of the network camera is an operating system, and all the front end can be equipped with many intelligent algorithms. The intelligent algorithm can directly process the original image information output from the chip, and based on the original image, do some appropriate applications suitable for the feature occasion. For example, you can embed the entrance and exit statistics function. This function can automatically analyze and count the number of people or objects passing through important entrances or designated areas by analyzing the images monitored by the camera. The application of this intelligent function can also be widely applied in service, retail and other industries to help managers analyze business conditions or improve service quality. For example, for the owner to count the number of patrons who visit his shop on a particular day.
The combination of intelligent algorithms and energy saving and environmental protection ideas has opened up another huge market. In party and government agencies, schools, enterprises, and large home environments, intelligent video analysis technology can also be used to eliminate huge energy waste and safety hazards, such as automatically turning off unnecessary lights or turning on lights for people working or adjusting the intensity of lights as needed. Wait. Because the intelligent security video surveillance system can calculate at any time in a certain environment where people walk or work, automatically turn on or enhance the light of the corresponding location, automatically turn off or weaken the light in other locations. In addition, the intelligent algorithm can also automatically analyze whether the person in the actual environment is consistent with the existing in the office or home database to analyze and determine whether there is intrusion by outsiders, and if so, it can be timely pre-alarmed.
Conclusion The high-definition network equipment is currently developing at a rapid pace. It brings not only innovation in image resolution, but also evolving broadband technologies. High-definition network equipment is gradually moving toward more applications. Moreover, the high-definition network equipment has a programmable front end, and is more convenient and faster than the original analog equipment in audio and video processing. But it can also be seen that the development of high-definition network equipment still needs a lot of ideological "breakthroughs." After all, it has evolved from simulations, and it has also given people a lot of thinking about traditional analog equipment. Potential. Traditional intelligence originally relied on “man-in-arms combatâ€. In the Internet era, we can carry more intelligent “cores†that high-definition network devices have. As long as you take advantage of this intelligent "core", there will be many innovative applications based on high-definition network devices. These applications are more intelligent and adaptable to special occasions because they are carefully designed and combined. The application of all this will inevitably have a great role in promoting the building of a "safe city."
The concept of the Internet of Things (IoT) concept was introduced in China as early as 1999, when it was called a sensor network. It is defined as: through information-sensing equipment such as radio frequency identification (RFID), infrared sensors, global positioning systems, laser scanners, etc., according to the agreed protocol, connecting any item to the Internet for information exchange and communication in order to realize intelligence A network concept that identifies, locates, tracks, monitors, and manages. The "Internet of Things concept" is a network concept that extends and extends its user's end to any item and item on the basis of the "Internet concept" for information exchange and communication.
The term “Internet of Things†is widely recognized at home and abroad as the earliest MIT Auto-ID Center Professor Ashton proposed when he researched RFID in 1999. In the report of the same name issued by the International Telecommunication Union (ITU) in 2005, the definition and scope of the Internet of Things have changed, and the coverage has been greatly expanded. It no longer refers only to the Internet of Things based on RFID technology.
Since Premier Wen Jiabao proposed "Perception of China" in August 2009, the Internet of Things was formally listed as one of the country's five emerging strategic industries and was included in the government work report. The Internet of Things has received great attention from the whole society in China. Its degree of concern is unmatched in the United States, the European Union, and other countries.
The concept of the Internet of Things is not so much an external concept as it is already a concept of “Made in Chinaâ€. Its coverage is advancing with the times and has gone beyond the scope of the 1999 Professor Ashton and the 2005 ITU report. The Internet of Things has been labeled "Chinese style."
Combination of high-definition camera and radio frequency technology At present, radio frequency technology has emerged with practical application of high-definition video. Because the network camera has a communication (COM) interface, the network camera has control data capture and conversion capabilities. Therefore, it can be connected to an external decoder through the COM interface. Use the COM port to receive data transmitted from the RF, so that the combination of image and radio frequency. At present, such equipment has been applied in some factories and office buildings. For example, this technology can replace fixed punching and illegal person identification (for example, it can give legitimate people wearing only the marked RFID card), and the combination of these two items can help improve many of the more tedious tasks in practice. In order to better reflect the corporate image, it also reflects the value of high intelligence and high technology.
Linkage with various alarm devices The traditional network camera has an alarm (ALARMI/O) interface. This alarm signal connection can handle the switching level. Therefore, the terminal of the device can also be connected to provide switching power. Flat various types of alarm sensing equipment. After the network camera receives this data, it can encode and process it, and then send it to the TCP/IP network. Through the application software, various alarm response signals can be set in response, such as sound, light alarm and alarm recording.
Most of the linked network cameras with mobile devices have the capture function, and each network camera has its own independent IP address, and can directly connect with the PC, remote management platform, and other network connections. We can configure the built-in email client in the network camera. When it is able to access the Internet, the network camera device can also send the captured picture when the alarm is triggered to the specified mailbox via Email. It can also be connected via a COM port to a device that can connect to a SIM card, and can be sent to a designated mobile phone terminal using a short message or a multimedia message. In this way, real-time and intelligent monitoring can be achieved while using only a small amount of bandwidth and cost.
In conjunction with the detection function device, in the construction of the safe city, it is possible to make use of the intelligent system attached to the remote monitoring to provide feedback in a place that is prone to danger and the personnel arrangement is difficult. Such as urban fire prone areas, flood level, dangerous buildings, brittle fractures, dangerous road sections, railways and highways that are prone to landslides, avalanche sections, seismological stations detecting earthquakes, etc., can be set up for detection, identification, and preemption. Intelligent alarm function. In general, devices with temperature detection can detect local temperature changes and trigger alarms; a camera with a cross scale can be installed to detect when the water level is moved to a warning scale on the cross scale and automatically start video display and pre/alarm. So that on-duty personnel can be viewed and processed according to sound and light alarms for the first time to prevent hazards caused by various disasters. Applications such as these greatly reduce the risk and uncertainty of human operations and provide a way to provide stable and reliable data.
The application of motion detection in the intelligent security monitoring system must have at least video motion detection pre/alarm functions, especially in banks, jewelry stores, shops, warehouses, accounting rooms, armory rooms, security rooms, museums, oil depots, and All important monitoring sites need to be set up where safety requirements are high. Of course, this function must be able to eliminate some of the objective interference, especially in the complex weather conditions such as rain, snow, fog, windy, etc., to accurately detect and identify the movement of a single object or multiple objects. Including its direction of movement, movement characteristics. In addition, the detection area of ​​video movement can also be turned on or off individually, which is convenient for adapting to the requirements of entrances, exits, parking lots, and the like in special time periods. When detecting and recognizing the intrusion of a moving human body that is not recognized, the video display and pre/alarm are automatically started, so that the on-duty personnel can perform the viewing and processing according to the sound and light alarm at the first time. In addition, PTZ control commands can be automatically sent according to their movements so that cameras with pan/tilt heads can automatically track objects. If the human body exceeds the surveillance range of the camera, it can also automatically notify other cameras in the area where the human body is located to continue tracking until the criminals are caught.
The intelligent aspect cuts in because the front end of the network camera is an operating system, and all the front end can be equipped with many intelligent algorithms. The intelligent algorithm can directly process the original image information output from the chip, and based on the original image, do some appropriate applications suitable for the feature occasion. For example, you can embed the entrance and exit statistics function. This function can automatically analyze and count the number of people or objects passing through important entrances or designated areas by analyzing the images monitored by the camera. The application of this intelligent function can also be widely applied in service, retail and other industries to help managers analyze business conditions or improve service quality. For example, for the owner to count the number of patrons who visit his shop on a particular day.
The combination of intelligent algorithms and energy saving and environmental protection ideas has opened up another huge market. In party and government agencies, schools, enterprises, and large home environments, intelligent video analysis technology can also be used to eliminate huge energy waste and safety hazards, such as automatically turning off unnecessary lights or turning on lights for people working or adjusting the intensity of lights as needed. Wait. Because the intelligent security video surveillance system can calculate at any time in a certain environment where people walk or work, automatically turn on or enhance the light of the corresponding location, automatically turn off or weaken the light in other locations. In addition, the intelligent algorithm can also automatically analyze whether the person in the actual environment is consistent with the existing in the office or home database to analyze and determine whether there is intrusion by outsiders, and if so, it can be timely pre-alarmed.
Conclusion The high-definition network equipment is currently developing at a rapid pace. It brings not only innovation in image resolution, but also evolving broadband technologies. High-definition network equipment is gradually moving toward more applications. Moreover, the high-definition network equipment has a programmable front end, and is more convenient and faster than the original analog equipment in audio and video processing. But it can also be seen that the development of high-definition network equipment still needs a lot of ideological "breakthroughs." After all, it has evolved from simulations, and it has also given people a lot of thinking about traditional analog equipment. Potential. Traditional intelligence originally relied on “man-in-arms combatâ€. In the Internet era, we can carry more intelligent “cores†that high-definition network devices have. As long as you take advantage of this intelligent "core", there will be many innovative applications based on high-definition network devices. These applications are more intelligent and adaptable to special occasions because they are carefully designed and combined. The application of all this will inevitably have a great role in promoting the building of a "safe city."
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