Nike+Ipod Leads The Trend Of Internet Of Things

Many students who used iPhone know that there is a system application called "nike+ipod". Yes, this is the real Internet of things!!! Nike+ running. shoes There is a sensor that can track your running and send the running data to iPod. The product even has its own social network: it can automatically send state messages to Twitter and Facebook; it also includes a heart rate detector and a running sensor (with shoes), which can voice the runners to maintain the target heart rate during running. In addition, there is a support website providing fitness programs, setting goals and tracking progress. Oh my God! The original Internet of things is not so far away.

In the past few years, the Internet of things has been scrambled for by all walks of life, and together with cloud technology, intelligent analysis and big data, it has become a member of the "don't understand this word embarrassed and chatting". Just as people are still questioning whether the concept of Internet of things is reliable or not, in the context of the national strategy of "perceiving China", the government, capital, industry and other levels pay close attention to the Internet of things, and set up the more than 10 IOT demonstration industrial bases headed by Wuxi, which has injected a strong stimulant to the successful transformation of the Internet of things from a concept to an industry. One of the core elements of the Internet of things is that things have "unique addresses". If the "Internet of things" era is coming, people's daily life will undergo tremendous changes, which will have a more profound impact on the country's economic, social development and security. Therefore, the Internet of things has also risen to a national strategic level.

　 Summary

Generally speaking, the definition of the Internet of things in the industry is: by means of radio frequency identification (RFID), infrared sensor, global positioning system, laser scanner and other information sensing equipment, any item is connected to the Internet according to the agreed protocol, and the information exchange and communication are carried out in order to realize a network of intelligent recognition, location, tracking, monitoring and management. Specifically, the sensors are embedded and equipped to various objects such as power grids, railways, bridges, tunnels, highways, buildings, water supply systems, dams, oil and gas pipelines, etc., and then integrate the "Internet of things" with the existing Internet to realize the integration of human society and physical system. In this integrated network, there exists a super powerful central computer group, which enables real-time management and control of the personnel, machines, equipment and infrastructure in the integrated network.

The Internet of things is the Internet of things. There are two meanings: first, Internet of things The core and foundation is still the Internet, which is an extension and expansion network based on the Internet. Second, its users extend and expand to any object and goods, for information exchange and communication. On this basis, we can manage production and life in a more precise and dynamic way, achieve the state of "intelligence", improve the utilization of resources and productivity, and improve the relationship between man and nature.

Perception framework

The main body of the Internet of things consists of three main parts.

Comprehensive perception: the use of radio frequency identification (RFID), sensors, locator and two-dimensional code and other means to collect and obtain objects at any time and anywhere.

Reliable transmission: through the integration of various communication networks and the Internet, the received object information depends on the network technology, through the GPS positioning technology, Internet technology, 3G technology and other real-time long-distance transmission, in order to carry out a variety of effective processing;

Intelligent processing: refers to the use of cloud computing, intelligent analysis and other intelligent computing technology, to analyze and process massive data and information at any time, so as to achieve intelligent management of objects.

　 Perceptual core technology

sensor technology

Sensing technology, together with computer technology and communication technology, is called the three major technology of information technology. From the bionics point of view, if we regard the computer as the "brain" of processing and identifying information, and regard the communication system as the "nervous system" of transmitting information, then the sensor is the "sense organ". Micro wireless sensor technology and the sensor network of this component are important technical means of the perception layer of the Internet of things.

Radio frequency identification (RFID) technology

Radio frequency identification (radio frequency identification) is a wireless communication technology that identifies specific targets through radio signals and reads and writes related data. In China, RFID has been widely used in identity cards, electronic toll collection systems and logistics management. RFID technology is mature in market application and low in tag cost. However, RFID generally does not have data acquisition function, it is mostly used to identify items and store attributes, and is limited in metal and liquid environment. RFID technology belongs to the information collection layer technology of the Internet of things.

WSN (Wireless Sensor Network) technology

Wireless sensor network, or nerve terminal network, is mainly represented by ZigBee, Bluetooth, NFC and Wi-Fi. Song Fuxin, chairman and general manager of Shanghai xippie Electronic Technology Co., Ltd. introduced: "wireless sensor network is a sensor network composed of independent nodes and gateways. Sensors located at different locations continuously collect physical information, such as temperature, sound, vibration, etc., and communicate with each other through wireless networks. Each node in WSN can achieve data acquisition and data processing, receive data from other nodes, and finally send data to gateway, then get data from the gateway to view historical data records or analyze.

WSN consists of a set of "autonomous" wireless sensors distributed in free space to work together to monitor the specific surrounding environment, including temperature, humidity, chemical composition, pressure, sound, displacement, vibration and pollution particles. A node in WSN is usually composed of a wireless transceiver, a microcontroller and a power supply. WSN technology runs through the three levels of the Internet of things. It is a new technology combining three technologies of computing, communication and sensors. It has the advantages of large scope, low cost, high density, flexible layout, real-time collection and all-weather work, and has a significant role in promoting other industries of the Internet of things.

Perception of smart city

The US IBM company has proposed that the Internet of things is the smart earth. In other words, the Internet of things is the mother of the smart city. Nowadays, smart cities have entered the stage of scale promotion from the development stage. During the "12th Five-Year" period, 600 to 800 cities in China are expected to become smart cities.

Smart city is an organic combination of large-scale systems, including a more thorough perception, a more comprehensive interconnection, more in-depth intelligence. Among them, the Internet of things is a very important element in smart city, and it supports the entire smart city system. The Internet of things provides a solid technical foundation for smart city, in which the Internet of things provides the city with a sense of perception for smart city, and makes this perception more in-depth and intelligent. Through the environmental perception, water level perception, lighting perception, urban pipe network perception, mobile payment perception, personal health perception, wireless city portal perception and intelligent transportation interaction perception, intelligent city can realize intelligent management of municipal, livelihood, industry and other aspects. One of the main objectives of the Internet of things is to achieve smart city. Many IOT based industries and applications are the mainstream applications for smart city. In other words, smart city is the target of the Internet of things.

Perceived security

In China, when an industry is labelled with "emerging industries" and "trillion yuan output value", it will inevitably be taken home by all walks of life and "ravaged". Of course, security is no exception.

The integration of the Internet of things will bring great changes to all walks of life. The security field is very suitable for the realization of the landing of the Internet of things. From the present point of view, the entire security industry is full of "sensor" words, for example: monitoring is mainly the application of CCD sensor technology, the alarm is mainly the application of infrared sensor technology, and the Internet of things seems to be tailored for the security industry. In the world of Internet of things, all the sensing devices are connected to form a multi antennae sensing network. This requires that our perceptual devices not only "feel" but also "distinguish" and "analyze", and transmit the discriminating information to the back-end application center for decision-making.

In the current security system, most of the access control sensors are single function. They can only do better than kill one thousand or kill one. The infrared detectors for illegal intrusion detection will produce alarm signals if they monitor the infrared signals, whether or not they are illegally invaded. The video surveillance cameras only have the camera function, and more are the "post Zhuge" general existence, though it can improve the detection rate, but the characteristics of prevention are not obvious, resulting in many security devices becoming a display and lack of linkage.

Internet of things technology can solve these problems well. Each sensor in the Internet of things is an intelligent node, which has three functions of information collection, data processing and communication. It can not only make the sensor itself have the function of intelligent data processing, but also organize various security subsystems to form an intelligent linkage system. If the infrared detector node detects the alarm signal, it first judges the signal through the data processing module of the node itself to determine whether it is in line with the characteristics of the infrared signal illegally invaded. At the same time, it can interact with the video monitoring node through the communication module, and then the image of the alarm location is sampled by the camera, then the image is analyzed to further confirm whether it satisfies the characteristics of the illegal invasion image, and finally determines whether the alarm is generated. This can effectively reduce or prevent false alarm.

The future security system will involve intelligent perimeter, intrusion prevention system and location management system. It will involve the integration with local video surveillance system and facilitate users to judge the problem in many ways. When there is a sudden situation, the local relevant camera can be called to view the scene. Today, the application of the Internet of things makes the security system more intelligent. More incidents can be prevented in time by the intelligent security system, and the events can be controlled before happening, so as to enhance the use value of security products.

Problems to be solved urgently in the Internet of things

Although the application of Internet of things technology in intelligent building security system has obvious advantages, but because it is still in the initial stage of development, there are also some urgent problems to be solved.

Security: the Internet of things is deeply rooted in the Internet, so it will always be a topic of widespread concern as well as the security problems of the Internet. On the one hand, most of the security systems based on Internet of things are wireless transmission, and the exposed signals are easily stolen and easily disturbed. Moreover, when introducing many advantages of the Internet, it also introduces security risks in the Internet, such as virus attacks, which may completely paralyze the system or reveal the privacy of the tenants in the buildings. This will directly affect the safety of the system. On the other hand, the construction of the sensor network requires that the RFID tag be embedded in any item that is closely related to human beings. It seems that people do not seem to be able to accept the objects of their surroundings, even they are in a state of being monitored at all times, which directly leads to the invasion of privacy. Therefore, how to ensure the privacy of the owner of the label is not violated has become the key issue of radio frequency identification technology and the promotion of the Internet of things.

The cost of use: the Internet of things industry needs to link things with things and carry out better control and management. This characteristic determines that its development will lead to more applications along with economic development and social needs. Therefore, in the initial stage of the Internet of things sensor technology promotion, single function and high price are very difficult to avoid. Because electronic tags are expensive and read-write devices are expensive, it is difficult to form large-scale applications. Without large-scale application, the problem of high cost is even more difficult to solve. How to break through the barriers of users in the initial cost has become the first issue to open up this market. Therefore, the development of the Internet of things will be limited under the premise that the cost has not yet been reduced to universal access.

Usage cycle: first, the problems of node cell energy, computing power and limited storage capacity. WSN nodes in the Internet of things will be restricted by volume, so their storage space and communication bandwidth are relatively limited, and nodes need continuous power supply. At present, most of the node products can only be equipped with battery powered, so its usage cycle is seriously restricted.

All these problems restrict the application of Internet of things technology in intelligent building security system. With the development of Internet of things, these problems will be solved better.

The second spring is coming.

The application of the Internet of things in the security industry has made the security field more and more closely related to cloud computing, big data and mobile communications. The application of the Internet of things in the field of security in the future is mainly reflected in the safe city project dominated by video surveillance. The construction of a safe city project based on urban video surveillance system is the foundation for achieving urban security and stability. It can not only meet the needs of public security management, urban management, traffic management, emergency command, etc., but also play an irreplaceable role in preventing, discovering, controlling, cracking down on crimes, providing clues to solve crimes, and fixing evidence of illegal crimes, etc., and it also takes into account the needs of disaster early warning, safety production monitoring and environmental monitoring.

The future security will be integrated into the big platform of the Internet of things and become an access. Internet One of the "all things". The integration and integration of IOT and various security technologies will have wider application prospects. Through smart sensor chip, the information is timely perceived, real-time transmission, allowing people and objects to interact in real time, bringing us a new era of security and wisdom.