CCTV 3.15 party exposed public WiFi security issues! According to an on-site experiment at the CCTV 315 Party, when connected to the wifi set up by hackers, sensitive information such as photos, emails, passwords and other information on the audience's mobile phones were obtained in minutes!
It is understood that China currently covers at least tens of millions of WiFi hotspots in public places, and this service has almost become a standard configuration within the scope of public places. When consumers enjoy the convenience of free WiFi, they have unexpectedly fallen into the trap of information being stolen.
The "Together 315" topic on People's Daily Weibo also reminds everyone that for the sake of personal information security, it is recommended that everyone not use free WiFi that does not require a password in public places; it is best to turn off WiFi when paying by mobile phone or sending emails. This Weibo post has been supported and forwarded by many bloggers!
Affected by this security news, the technology of indoor positioning based on WIFI has become somewhat unknown.
Today, the development of outdoor maps is in full swing. With the development of mobile Internet technology, there is a strong demand for various indoor location-based services. Facing the tens of billions of dollars in indoor positioning market, indoor map navigation has also become an area of layout for many companies.
However, achieving precise positioning indoors has always been a worldwide problem.
The current technical solutions used for indoor positioning are mainly GPS, (A-GPS), pseudolite (Pseudolite), wireless local area network (WLAN), radio frequency tag (RFID), Zigbee, Bluetooth (Bluetooth, BT), WIFI, LED light positioning, etc.
Due to problems such as positioning accuracy, hardware layout or cost, so far, these technologies have rarely had successful commercial applications. Relatively speaking, WIFI technology with a wide application base and LED light positioning technology that rides on the trend of green environmental protection and energy saving have more development potential among various technical solutions.
But now free WIFI is suspected of information being stolen. Without a large number of free WIFI as a basis, the technology of indoor positioning based on WIFI will lose its mass base, and its future is uncertain!
It is understood that the use of WIFI for indoor positioning technology still faces some gaps that are still insurmountable.
For example, the positioning accuracy of WiFi is 5-20 meters, which can only indicate the approximate location and the effect is average. If other offline equipment is needed to assist, the cost will be higher.
Especially in large airports or shopping malls, signals often interfere with each other. Coupled with the high density of people, wireless signals are severely blocked. Positioning that seems very precise in the laboratory is often inaccurate or fluctuates greatly in public places. Moreover, WiFi also faces embarrassing problems such as the inability to identify floors, high hardware costs, and high maintenance costs.
The most important thing is that today, mobile terminals such as mobile phones and PADs have gradually become handheld devices that integrate calling, identification, entertainment, payment, reading, social networking, communication, etc. If the information security of the equipment cannot be guaranteed, all business models based on it will be in vain.
Relatively speaking, LED white light positioning technology is more like a child born with a golden key in the indoor positioning market. It not only responds to the trend of energy conservation and environmental protection policies, but most importantly, it can also ensure the security and stability of information transmission.
It is understood that LED light positioning is not affected by any environmental factors such as multi-paths and obstacles in the indoor environment. Only under specific lighting positions, information is transmitted linearly one-to-one with strong confidentiality. This aspect is better than WIFI!
Furthermore, visible light communication is a new technology in the field of smart LEDs. In terms of indoor positioning, its positioning accuracy is within 1 meter. When loaded on ubiquitous indoor lighting sources, each LED lamp becomes a small GPS satellite without the need for additional hardware facilities. In the future, it will become the touchstone to open up the indoor positioning market.
In addition, under the urgent need for energy conservation, environmental protection and low carbon, the government vigorously advocates and promotes green and environmentally friendly energy. LED lamps only need to be positioned at a low module cost, and with the EMC model strongly advocated by the government, there is basically no resistance to zero-cost promotion.
In addition, LED lighting has inherent characteristics such as intelligence, communication functions and human-computer interface functions. Its wider application as an important "connection" medium in the information society has just begun. The light emitted by LED lamps with positioning function can connect any person, object or even robot indoors with the indoor location. It will be the basis for solving real-time indoor geographical information online business operations, public safety and other services in smart cities.
It can be predicted that in the future, as indoor positioning technology matures, the demand for location services, navigation interaction, real-time monitoring of people flow, fire evacuation, etc. in large indoor spaces will become basic needs. Today, indoor location-based services are entering a new exploration period, but the threshold for indoor positioning is not low. If LED light positioning can take the lead in the indoor positioning market with its technical advantages, cost advantages, and safety advantages, it will definitely play a decisive role in the future LBS battle.
ANNA