5.WIFI and Bluetooth technology What is the difference?

Posted by Wangkiky Wangkiky over 6 months ago

Bluetooth is a WPAN (Wireless Personal Area Network) technology, and WIFI is [url=http://inverterproducts.com/products/2018_New_Design_LED_Motion_Sensor_Solar_Wall_Light.html]2018 New Design LED Motion Sensor Solar Wall Light[/url] (Wireless Local Area Network) technology.The two services provide different services for users, and there are fundamental differences between the two types of wireless technologies. 6. WLAN and GPRS What is the difference? From the speed comparison, GPRS is a packet switching system, each carrier frequency up to 107kbit / s access rate, a narrowband access category.Because it is through the mobile phone network, so the speed is slower, the actual rate is affected by many factors , And only 56Kbps Modem quite; and WLAN basic 802.11b standard up to 11Mbps, is a broadband category, if it is a 54M wireless network, the rate will be higher.Radio wireless network devices according to different standards, can be achieved From 11Mbps ~ 54Mbps speed. From the coverage of comparison, GPRS is built on the basis of the GSM network, the single-point effective coverage is much larger than the WLAN AP coverage .WLAN coverage is limited, the general civilian wireless network environment only in the AP around 20 ~ 100 Effective within meters, but as more "wireless hot spots" are installed by broadband operators, WLANs are gaining more and more widespread use. 7.WIFI radiation on the human body? Due to the wireless network transmit power is weaker than the average number of mobile phones, [url=http://inverterproducts.com/products/China_Led_Waterproof_Wall_Mounted_Outdoor_Solar_Lights_Price_List,Solar_LED_Wall_Light_Landscape_Solar_All_In_One_Solar_LED_Wall.html]China Led Waterproof Wall Mounted Outdoor Solar Lights Price List,Solar LED Wall Light Landscape Sol[/url] network transmit power of about 60 ~ 70mw, and mobile phone transmit power of about 200mw, and the use of the way is not as direct contact with the human body as mobile phones generally reach the human body are not To 1mw, so relatively less no safety considerations. 8. Bank of China mobile phone why *** WIFI function? At present, China's policy on WIFI handsets is vague, that is, there is no express provision that does not allow WIFI handsets to access the network, but in fact, WIFI handsets are not allowed to pass the network test, nor to WIFI handsets. The highlight is that you can achieve VOIP Internet phone features, as long as the WIFI hotspot coverage area can be free through the Internet or at a low price to make voice calls, WIFI mobile phone will seriously impact the existing operator's voice market, will also divert the telecommunications have been Of the voice business, once fully rolled out, will be strongly opposed by other carriers.This is a problem that has to be weighed down, after all, a large part of the revenue of the major domestic telecom operators still rely on traditional voice services.In addition It is generally believed that there is also a relationship with WAPI, a country that vigorously promotes the standardization of WAPI. The second part of the WIFI connection complete application guide 2.1 home to set up a wireless LAN (WIFI through a wireless router) Advantages: better scalability and flexibility, wireless network coverage, as long as at home or near the home to search for a wireless signal can be connected with a small 7 in order to achieve anytime, anywhere in the Internet, relative to the GPRS speaking speed A lot, and do not need to pay additional traffic charges (of course, the broadband charges at home is to pay ...) Disadvantages: slightly larger overhead, the need to purchase an additional wireless router, the other is the formation of home LAN one of the major issues is security, especially when using broadband Internet access is particularly poor .Wireless network security performance is poor, the transmission of information easily by others ** *. Here I am on the market common TP-LINK WR541G + wireless router, for example, the graphic describes how to set up a home LAN.ADSL with wireless router methods and content are basically described below will be summarized.Although the wireless router has a different brand Will make the interface is very different, but the same, analysis of the problem, the method of solving the problem is similar. (Encounter the "gatewayless response" friends, [url=http://inverterproducts.com/products/2018_New_4SP14_4_3kw_4hp_Solar_Powered_Water_Pump_List_Integrated_Control_System_With_Water_Lubrication_Motor_And_MPPT.html]2018 New 4SP14 4 3kw 4hp Solar Powered Water Pump List Integrated Control System With Water Lubricat[/url] please pay special attention to Step 2 and Step 5) 1. After you start the router and log in to the router management page, the browser will display the administrator mode interface.