Stable control and movement system for idler wheel type service robot

The invention discloses a stable control and movement system for an idler wheel type service robot. The stable control and movement system for the idler wheel type service robot comprises a main frame body, a main-control programmable logic controller (PLC), a power source, a driving device, a navigation device, a wireless communication unit, an obstacle sensor, a landmark sensor, a voice playing unit and an idler wheel set. The main frame body comprises a first installation base plate, a second installation base plate and a third installation base plate, and the first installation base plate, the second installation base plate and the third installation base plate are sequentially arranged at intervals from bottom to top. Driving idler wheels are installed at the front end of the first installation base plate, and driven idler wheels are installed at the rear end of the first installation base plate. The driving device is installed on the first installation base plate. The main-control PLC is installed on th