First working experience was as a regional sales manager for security industry, such as home and building security systems, time management, with products of access control, time attendance, CCTV in fingerprint and face recognize technology, that's so call bio-security, also including RFID technology, and all the drivers and software for the system.Now it comes to my current job. It's to supply the comprehensive system and products for smart home and building automation, including switching and dimming actuator, shutter/blind controller, sensors, DALI gateway, fan coil controller, visualization software for windows, Android and IOS, converters to RS232, RS485 and IP networks, for system integrating with other systems, such as security, alarms, CCTV, video door phone system, etc. In my opinion, these two technology is more important to be combined together in a system, for home and building automation. We know Zigbee and other wireless technology is also important and improving in this field.