[Audio Encyclopedia] The 9th Bluetooth, infrared, WiFi, how much do you know?
As the three major wireless communication technologies of today, after years of development and standard upgrades, the three wireless standards and technologies have already penetrated into every aspect of our daily lives. The smart phones that we can't do every day have the functions of Bluetooth and WiFi. The communication between the home TV, air conditioner and other remote control devices is infrared technology.
All three are wireless transmission technologies and standards. How do we distinguish them? Here is a brief introduction to everyone.
Bluetooth is a standard for communication between multiple devices that supports voice and data communications. The main features of Bluetooth wireless transmission are short transmission distance (10 meters), support for voice and data communication, and low cost and easy to use (all Bluetooth devices can communicate directly). Mainly used in mobile phones for file exchange with other mobile phones and Bluetooth-enabled devices such as PCs. Nowadays, the Bluetooth products on the market are more abundant than before. The appearance of Bluetooth headsets, Bluetooth mice, Bluetooth keyboards, Bluetooth speakers and other products is constantly improving our lives.
Infrared wireless transmission is a technology that uses infrared to transmit data. It is a point-to-point transmission method, which is common in the communication between electrical appliances and remote controls and infrared sensing devices in our daily life. Infrared wireless transmission is generally used for low-cost, cross-platform high-speed data connections, such as device interconnection, information gateways, and so on. Because the infrared wavelength is short and the diffraction ability is poor, there is no obstacle between the transmission point and the point, so the site requirements are relatively high.
In order to meet the needs of large-scale international conferences, CREATOR quickly developed and produced a digital infrared simultaneous transmission system to realize multi-language communication at the conference site. The digital infrared simultaneous transmission system is mainly equipped with a digital infrared transmitting host, a high-performance infrared radiation panel, a translation unit and an infrared receiving unit. At present, CREATOR's fast digital infrared simultaneous transmission system can simultaneously support up to 32 voice simultaneous transmissions.
The full name of WiFi is Wireless Fidelity, which is an industry standard for wireless network communication defined by IEEE (IEEE 802.11). It is characterized by high transmission rate (11 Mbps), long transmission distance, good confidentiality, reliable communication (anti-interference and anti-multipath interference). One thing to note is that when both Bluetooth and WiFi are in the 2.4G band, because both use radio waves to transmit signals, there will be interference between them, but the consequences are not serious, only the transmission rate will be slower.
802.11b has been widely used due to its low frequency and low cost.
WiFi technology spreads rapidly in the field of conference systems with wider coverage and higher transmission rate. It is the mainstream and development direction of the entire conference system field, and on this basis, it spreads to the surrounding areas.
The CREATOR fast intelligent conference system has been highly praised all over the world, especially the first all-digital wireless conference system in China. The conference host has been updated to the third generation CR-WiFi6301. CREATOR's fast all-digital wireless WIFI conference system features high bandwidth, strong signal, low power consumption, high security and easy control. It supports 100M network full digital audio and control signal transmission, ensuring long-distance transmission sound quality is not affected. Adopt WPA/WPA2 wireless security technology, 5G frequency band to ensure conference privacy and transmission efficiency. The conference function is a high-end digital conference room that integrates speech, mobile camera tracking, information transmission, etc., and truly realizes humanization, intelligence and integration for enterprises.
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