Lift system having individually driven cars and a closed track

A lift system comprising:

• a guide rail system, a car and a drive unit arranged on the car, wherein the guide rail system forms a closed track along which the car can be moved between floors when in operation;
• wherein the drive unit has a motor, a gear wheel system coupled to the motor by means of a shaft and a guide disk, wherein the motor drives the gear wheel system when in operation;
• and wherein the guide rail system has a pinion system and guide edges spaced apart from one another, which cooperate with the guide disk, wherein the gear wheel system acts on the pinion system when in operation in order to move the car along the track in a guided manner, wherein a plurality of cars are provided, which can be moved independently of one another on the closed track, wherein each car has a local control unit and wherein a central control unit is provided which is communicatively connected to the local control units and a fixed number of floor terminals, wherein the communicative connection between the central control unit and the local control units is made via a radio network.