System comprising an inductive cooking hob and an installation device for installing on the inductive cooking hob, the installation device having an induction coil which can be inductively coupled to the heating coil and a transmitting unit or a transmitting unit and a measuring unit has a transmitting unit, and the inductive cooking hob having at least one hot plate, at least one heating coil assigned to the hot plate, and a cooking hob controller for controlling the heating coil in an operating mode of the inductive cooking hob for heating the installation device installed on the hot plate, the cooking hob controller being designed and configured such that the inductive cooking hob can additionally be operated in a standby mode, it not being possible for the heating coil to be controlled in the standby mode, and the cooking hob controller being designed and configured such that the inductive cooking hob can additionally be operated in a ready mode, it being possible for the inductive cooking hob to be transferred from the standby mode into the ready mode by means of an alarm signal received by a receiving unit of the cooking hob controller, and it being possible for the heating coil to be controlled in the ready mode by means of the cooking hob controller such that heating of the installation device effective for a preparation process is prevented, and signal transmission between the transmitting unit and the receiving unit being made possible by means of the heating coil, characterized in that a movement sensor is arranged on the installation device and is in signal-transmitting connection with the transmitting unit and/or an operating element is arranged on the inductive cooking hob and is in signal-transmitting connection with the receiving unit of the cooking hob controller and/or an operating element is arranged on a third-party device and is in signal-transmitting connection with the receiving unit of the cooking hob controller, the system being configured and designed to produce the alarm signal by means of the movement sensor on the installation device and/or by means of the operating element on the inductive cooking hob and/or by means of the operating element on a third-party device. the installation device having an induction coil which can be inductively coupled to the heating coil and a transmitting unit or a transmitting unit and a measuring unit has a transmitting unit, and the inductive cooking hob having at least one hot plate, at least one heating coil assigned to the hot plate, and a cooking hob controller for controlling the heating coil in an operating mode of the inductive cooking hob for heating the installation device installed on the hot plate, the cooking hob controller being designed and configured such that the inductive cooking hob can additionally be operated in a standby mode, it not being possible for the heating coil to be controlled in the standby mode, and the cooking hob controller being designed and configured such that the inductive cooking hob can additionally be operated in a ready mode, it being possible for the inductive cooking hob to be transferred from the standby mode into the ready mode by means of an alarm signal received by a receiving unit of the cooking hob controller, and it being possible for the heating coil to be controlled in the ready mode by means of the cooking hob controller such that heating of the installation device effective for a preparation process is prevented, and signal transmission between the transmitting unit and the receiving unit being made possible by means of the heating coil, characterized in that a movement sensor is arranged on the installation device and is in signal-transmitting connection with the transmitting unit and/or an operating element is arranged on the inductive cooking hob and is in signal-transmitting connection with the receiving unit of the cooking hob controller and/or an operating element is arranged on a third-party device and is in signal-transmitting connection with the receiving unit of the cooking hob controller, the system being configured and designed to produce the alarm signal by means of the movement sensor on the installation device and/or by means of the operating element on the inductive cooking hob and/or by means of the operating element on a third-party device.