Recently, in the Shanghai subway station, an interactive advertisement of KFC KFC appeared to promote its new breakfast "bedding", which can be used for breakfast on the LED large screen. The audience in the subway station can imitate the KFC "bedding" on the spot. During the production process, the action of beating eggs, stirring flour, omelettes, stuffing in the package, etc., is instantly reflected on the big screen in a zero-day manner, and the corresponding sound effect feedback is also triggered. 
It is understood that the KFC "Isolate" breakfast-sensing interactive advertisement was created by Kemet Media for KFC KFC, based on technologies such as computer vision and virtual reality, so that ordinary video advertisements will change according to human movements. In order to make the interactive experience more lively, Jimei Media adopted the German infrared induction Airscan device, which instantly captures the interaction of the interactive crowd without affecting the overall appearance of the LED display , resisting light interference and touching any object.
Up to now, this interactive advertisement has been placed in the subway stations of important business districts such as Xujiahui, Shaanxi South Road, People's Square and Jing'an Temple.
PufangTech`s VHF radio modems operate in 136~174MHz and 220~240MHz frequency band. The VHF Radio Modem has an air data rates of 19200bps in 25kHz channel spacing and 9600bps in 12.5kHz.
Suitable to apply in data collecting, and VHF radio modems have been used to transmit voice and radio data since the middle of last century. This is one of the most efficient ways to communicate over miles away. A wider coverage is a different advantage belongs to VHF frequency from the others. VHF has 30 to 50 per cent larger range than UHF Radio Modem with the same carrier power.
VHF Radio Modem,VHF Modem,VHF Data Radio Modem,VHF Data Radio
Shenzhen PuFang Technology Co., Ltd. , https://www.hytelus.com