Localization system and localization method and mobile position data transmitter
View Patent ↗There is described a localization system with a mobile position data transmitter having a position-detecting device for detecting a position of the position data transmitter and for deriving position data from the position detected. The position data transmitter also has a radio tag writing device for wirelessly emitting the derived position data with a write signal for writing to radio tags. The localization system also has radio tags which are to be spatially distributed and each have a memory for storing an item of localization information which is taken from the position data received with the write signal. A radio tag reading device is used to retrieve and output the stored read information from the radio tags that are situated in the retrieval range.
1. A localization system, comprising;
a mobile position data transmitter having:
a position detection device for detecting at least one position assigned to the mobile position data transmitter and for deriving position data from at least one detected position, and
a radio tag writer for wirelessly emitting the derived position data with a write signal for writing radio tags;
radio tags for distribution within a space, wherein each radio tag has a memory for storing localization information obtained from position data received with the write signal; and
a radio tag reader for retrieving and outputting the localization information stored by at least one radio tag located within a retrieval range.
2. The localization system as claimed in claim 1 , further comprising an evaluation device coupled to the radio tag reader to detect localization information retrieved from a plurality of the radio tags.
3. The localization system as claimed in claim 2 , wherein the evaluation device detects localization information from the plurality of the radio tags and derives a position specification averaged over the plurality of the radio tags based on the detected localization information.
4. The localization system as claimed in claim 1 , wherein the mobile position data transmitter detects continuously a current position and emits continuously the position data, wherein the position data are derived continuously from the current positions of the mobile position data transmitter.
5. The localization system as claimed in claim 3 , wherein the mobile position data transmitter detects continuously a current position and emits continuously the position data, wherein the position data are derived continuously from the current positions of the mobile position data transmitter.
6. The localization system as claimed in claim 4 , wherein the radio tags have an averaging device to derive the localization information by averaging position data obtained at regular intervals.
7. The localization system as claimed in claim 5 , wherein the radio tags have an averaging device to derive the localization information by averaging position data obtained at regular intervals.
8. The localization system as claimed in claim 1 , wherein the position detection device has a first encryption module and the radio tag has a second encryption module, wherein the encryption modules protect a transmission of the position data.
9. The localization system as claimed in claim 1 , wherein the position detection device has a first encryption module and the radio tag has a second encryption module, wherein the encryption modules protect writing on the radio tags.
10. The localization system as claimed in claim 1 , wherein the position detection device has a first encryption module and the radio tag has a second encryption module, wherein the encryption modules are for a protected transmission of the position data and for a protected writing of the radio tags.
11. The localization system as claimed in claim 1 , wherein the radio tags are spaced at intervals essentially twice a retrieval range.
12. The localization system as claimed in claim 1 , wherein the radio tags are spaced at intervals which are less than a retrieval range.
13. A localization method, comprising:
providing a mobile position data transmitter;
detecting at least one position assigned to the mobile position data transmitter;
determining position data of the mobile position data transmitter based on the detected position of the mobile position data transmitter;
emitting wirelessly the determined position via a write signal for writing radio tags;
receiving the writing signal by a radio tag;
storing localization information obtained from the position data by the radio tag;
retrieving the localization information stored by the radio tag by a radio tag reader, wherein the radio tag is located within a retrieval range; and
outputting the localization information by the radio tag reader.
14. The localization method as claimed in claim 13 , wherein an evaluation device is coupled to the radio tag reader detecting localization information retrieved from a plurality of radio tags.
15. The localization method as claimed in claim 14 , wherein the evaluation device detects localization information from the plurality of radio tags and derives a position specification averaged over the plurality of radio tags based on the detected localization information.
16. The localization method as claimed in claim 15 , wherein the mobile position data transmitter detects continuously a current position and emits continuously the position data, wherein the position data are derived continuously from the current positions of the mobile position data transmitter.
17. The localization method as claimed in claim 16 , wherein the position detection device has a first encryption module and the radio tag has a second encryption module, wherein the encryption modules protect the transmission of the position data and protect the writing of the radio tags.