United Integrated Services Co., Ltd. (UIS) first started developing wireless smart home security systems based on 2.4 GHz about a decade ago. The company offers OEM/ODM services for system integrators and service providers. About 3 years ago, the company moved from using proprietary 2.4 GHz to ZigBee for wireless communication.
Tahsiung Wang, vice president of Electronic R&D Division at UIS, explained that the move to ZigBee allows UIS to better connect with global partners since it is an internationally recognized wireless protocol.
When asked about the company’s strength, Wang expressed that besides leveraging an internationally recognized wireless protocol, the company offers modularized software for fast time to market, which will give its customers a competitive edge over others.
The company’s smart home portfolio currently includes gateway, contact sensor, motion sensor, smoke sensor, siren, key fob, power switch, DI and AI transducers, power relay module, and relay switch, all of which are wireless based on ZigBee technology.
According to Wang, the company is developing new smart plugs and light switches, also based on ZigBee. The new smart plugs will serve dual purposes and can act as gateways. One application for these smart plugs is to connect them to IP cameras for adding ZigBee connectivity to expand the system.
The new light switches will also be multi-functional. For example, PM2.5 sensors or omni-directional motion sensors may be inconspicuously embedded in these switches.
Wang said that the omni-directional sensor emits a 10 GHz microwave and detects motion based on Doppler’s effect—the sensor can tell the difference between the reflected waves of still and moving objects. The 10 GHz microwave can also penetrate materials such as plastic, so it can be placed inside a plastic casing, for example. Furthermore, unlike PIR sensors that are sensitive to heat, this sensor is not normally affected by heat according to Wang.