Device for checking the consistency of a positioning

A device configured for checking a consistency of a positioning, the device comprising:

• a transmitting device;
• a receiving device;
• a time measuring unit;
• a distance determination module;
• and
• a check module;
• wherein the transmitting device is configured to emit at least one signal;
• wherein the receiving device is configured to receive at least four response signals from at least four different response elements;
• wherein a response element is configured to receive the at least one signal and, upon receipt of the at least one signal, the response element is configured to emit a response signal;
• wherein the time measuring unit is configured to determine, for each received response signal, a total delay time from a transmission time of the signal and a reception time of the respective response signal;
• wherein the distance determination module is configured to determine a distance to the respective response element based on each total delay time;
• wherein the check module is configured to perform a consistency check of a determination of a position based on distances to the at least four different response elements;
• wherein the check module is configured to perform the consistency check with a determination of a number N of all distances and the determination of a position by way of an integrity position of a plurality of N−1 distances, wherein the check module is configured to ignore the Nth distance;
• and
• wherein the check module comprises a time filter element is configured to perform a temporal filtering in determining the total delay time for each received response signal.