Information technology such as big data, Internet, and cloud computing can be said to be the foundation and blood vessels of smart cities, connecting all aspects of smart cities. But to completely cover every corner of the city, data collection is a very large and complex task. How to collect and use this data conveniently and effectively? The scientists have given the answer.
Smart street lights will become important data portals
Street lights are undoubtedly an excellent carrier for the collection of information on roads, traffic, pedestrians, vehicles and security in the city. There must be street lights in the roads. With the layout of the street lights, the data collection of relevant traffic, pedestrians and security in the smart city system can easily cover the entire city road without leaving a dead end.
At present, smart street lights are available, equipped with cameras, displays, emergency calls, RF tag sensing and other equipment, and equipped with 4G or other wireless communication systems. The camera is used to observe the condition of the road and pedestrians and to transmit the captured images and other data back to the control platform via the relevant communication system. Some advanced security cameras can also be remotely controlled, which means that the control platform can convert the angle of each camera at any time to get a higher quality picture.
The display on the smart street light is responsible for displaying traffic information such as traffic congestion and road conditions ahead. When the camera captures a serious traffic jam on a certain road section, the background information can be displayed on the display screen attached to the street light of the nearby road, so that the driver can detour in time after seeing it.
The use of the RFID tag sensing device for smart streetlights is quite special. For a long time in the past, urban residents and managers have been plagued by the problem of stolen manhole cover. After the radio frequency tag is embedded on the manhole cover, as long as the manhole cover is illegally moved, the radio frequency tag sensing device on the street lamp is activated, and the precise position of the moved manhole cover is transmitted to the background, and at the same time, The removed manhole cover can also be easily located by means of information transmission of street lamps.
The RF tag function included with the smart street light can play a key role in the anti-theft and maintenance of public assets such as manhole covers. Smart street lights integrate charging pile equipment and can also be used for charging. The electric car can be recharged when it is temporarily parked on the roadside or overnight. It only needs to be charged according to the charging time or paid by magnetic card. The smart street light with intelligent charging pile function will become the main collection point of the charging data of the city new energy vehicle.
RF tags trace the flow of people and goods
Radio frequency tags, also known as RFID (RadioFrequencyIdentification), have been widely used in our lives, but many people are unaware of their existence. Radio frequency tag chips are embedded in our ID cards, passports, etc. These chips store various personal information, travel records and other information in an encrypted manner for public security and border inspection with legal RF read/write devices. Security and other personnel to consult. As long as people use these documents at train stations, airports, etc., personal whereabouts are recorded as data. In addition, RF tags are also widely used in transportation cards, electronic tickets, etc., to play the role of recharge and anti-counterfeiting at any time.
RF tags can play a bigger role in smart logistics and commodity tracking. The RF tag can be used to record the information of each node in the whole process of inspection, storage, transportation, entering the supermarket and vegetable market, and being purchased by the public. The public can use the corresponding reader to read the origin of the goods, quality inspection information and other information to decide whether to buy. City managers can trace the product information through the whole process to ensure that only certified and safe goods can flow into the market, effectively reducing the risks caused by unsafe food and counterfeit goods.
In 2012, Chengdu launched the “Purple Quality Traceability Safety Supervision Systemâ€. The system uses RF tags as the main means of traceability. There are more than 10,000 RF tag information collection points from the slaughter of pigs to the entire industrial chain entering the market. The origin, quarantine, transportation route, cold storage and sales of any piece of pork Channels and other information are collected and entered into the cloud data center, so that consumers can access the cloud data platform through the mobile phone at any time.
At present, in the field of smart logistics and commodity traceability, RF tags have been widely used in high-end clothing, alcohol, health care products, medicines and other products. According to estimates by the Institute, the market revenue of China's RF tags in 2015 exceeded RMB 4 billion, and it is expected to exceed RMB 8 billion by 2020.
In the future, with the further decline in the cost of RF tags and the popularity of smartphones with RF tag reading and writing capabilities, RF tags will play an irreplaceable role in smart logistics, commodity anti-counterfeiting and traceability. RF tags, as an important big data entry for the flow of people and goods, will grow rapidly in the next five years.
Smart home becomes a home data entry
The family is a component of the city. The time, frequency, and habits of the family's water, electricity, gas, etc. are important basis for the relevant departments of the city to carry out the layout and planning of the power grid and gas pipeline network. Smart meters, smart water meters and other smart home appliances will be the collection point for thousands of family-related data in the future.
The original intention of smart home appliances is to realize the intelligent operation of home appliances and allow users to remotely control home appliances. For example, when you wake up in the morning, you will automatically raise the curtains, open the windows, automatically turn off the TV and lights, and put down the curtains during sleep. In addition to bringing more convenient and efficient experiences to users, smart appliances and other new products can also refine the collection of household electricity and related data to a certain household appliance. The user can install the smart switch at the power supply of the appliance and view the power usage status of any household appliance at any time through the smart phone with the relevant APP installed. When the electrical condition of the appliance is abnormal, such as sudden increase in power consumption, the user can respond in time to replace the aging, near-failure lights and appliances.
It is precisely because of the remote responsiveness of smart home appliances that smart home appliances are given the ability to collect consumer habits and related data. For example, the intelligent air conditioner can collect information such as the time when the user turns on and off the air conditioner, the user's usage habits of functions such as cooling and dehumidification, and returns the relevant data to the data platform to help the air conditioner company better understand the customer's usage behavior, and As the basis for the company to adjust product design.
The wisdom of the agricultural market has great potential
Smart agriculture is an important part of a smart city. The main implementation method is to collect the light, moisture, pesticide, fertilizer and other data needed for different growth stages of crops by sensing, monitoring and information technology such as humidity, temperature and imaging, and form the most of these production factors based on data analysis. Optimized configuration to meet the requirements of different crops at different growth stages.
The Daejeon Intelligent Monitoring System developed by the Chinese Academy of Agricultural Sciences and other domestic research institutions can achieve a certain degree of farmland management intelligence and greatly improve the efficiency of farmland managers. The system typically has multiple sensing devices that are placed in different locations in Daejeon and are responsible for collecting information from sensors installed around them and sending them to the control center via 4G or other remote wireless networks. For example, if the humidity in the field is too small, the sensing device will inform the control center to open the irrigation system. Daejeon Intelligent Monitoring System can help managers to irrigate only when needed to reduce unnecessary water waste and save related costs.
Some inductive devices are also equipped with cameras, and farmland managers can check regularly and learn about the growth of crops and pests and diseases in the fields around the various inductive devices, and decide whether to use or add pesticides and fertilizers. In this smart farming system, various temperature sensors, humidity sensors, cameras and other equipment together constitute the entrance to massive data.
Conclusion: At present, smart cities are based on information technology such as big data, Internet, and cloud computing. In the future, many smart home appliances and other products that are closely related to urban operation and residents' lives will be used as data portals to undertake the task of collecting data for smart city systems. Faster and more convenient data collection will make residents' lives more convenient and safe, and will also enable smart homes to acquire more new business opportunities.
The Dome Fixed Focus Camera/ Dome Fixed Focus Camera Indoor/ Dome Fixed Focus Webcam / Fixed Focus Dome Webcam Night Vision/ IR Fixed Focus dome camera/ Fixed Focus Dome Camera 360°belongs to both the Fixed Focus Camera and the Dome Camera. So what is the Dome Camera?
The Dome Camera, as the name implies, has the dome shape, and this dome shape is exactly the origin of this name "Dome camera". The Dome Camera is very suitable to be used in the office places and places with the high-grade decoration because of its small size and beautiful appearance. The Dome Camera is composed of a camera, an automatic iris manual zoom lens, a dome cover with the excellent sealing performance, and a precise camera mounting bracket; and its biggest feature is its exquisite design, beautiful appearance and easy installation.
With the security surveillance cameras applied extensively and deeply, in the pursuit of the convenient installation and debugging, and the full coordination with the the building environment(both beautiful and concealed), the Dome Camera is developed. Now the Dome Camera has been widely used in the TV surveillance projects.
Although the Dome Camera's composition has many similarities with the Bullet Camera, for example, both are fixed cameras, the Dome Camera has the delicate protective cover and mounting bracket, while the Bullet Camera needs to be equipped with a protective cover. The Dome Camera has a zoom lens with the small zoom range and the lens is not easy to replace; while the zoom range of the Bullet Camera depends on the selected lens, from several times to several times, and the lens replacement is very convenient. Dome cameras are mostly used in indoor small-scale monitoring occasions, such as the entrances and exits, passages, elevator cars, etc. of important parts; while the scope of Bullet Camera's application is very wide, according to the selection of different lenses, long-distance or wide-angle monitoring can be realized, and the application occasions are much wider than that of the Dome Camera.
With surveillance applications wider and wider; due to the convenience of installation and debugging, and the concealment of the surveillance, the dome camera has been widely applied to the indoor surveillance, such as the places with the ceiling and the rarely changing light. The Dome Camera technology also changes very quickly. For example, firstly, the camera shooting function of the Dome Camera is not different from the high-performance Bullet Camera, and the Dome Camera is miniaturized; Secondly, the lens of the Dome Camera is also automatic iris + manual zoom, and the zoom range gradually increases; Thirdly, the overall sealing performance of the Dome Camera is better, especially the lower dome, it is made thin and uniform, with better light transmittance and less light loss; Last but not the least, the mechanical design of the mounting bracket is more exquisite, which makes the adjustment of the camera position very convenient, and the three-dimensional adjustable universal joint bracket has appeared.
In conclusion, compared with the Bullet Camera, the Dome Fixed Focus Camera also has many advantages, and we should choose the suitable type according to our appliying occassions.
Dome Fixed Focus Camera
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