Moving target identifying system in a base station radar unit for specifying information about moving targets carrying a mobile station radar unit
First Claim
1. A moving target identifying system comprisinga base station radar unit comprising:
- a question generator which generates a plurality of predetermined questions,a base station transmitter which modulates and outputs said plurality of question signals output by said question generator,a base station antenna which radiates the output of said base station transmitter outside said base station, and receives signals from outside said base station,a base station receiver which processes signals received by said base station antenna,a moving target information data base wherein anticipated responses to said plurality of questions are stored,a response demodulator which demodulates a plurality of response signals contained in the output of said base station receiver so as to obtain a plurality of responses, and reads a corresponding plurality of anticipated responses from said moving target information data base based on these demodulated results, andidentifying means which identifies moving targets by comparing said plurality of responses with said plurality of anticipated responses, and further comprises;
a mobile station radar unit comprising;
a mobile station antenna which receives transmitted signals from said base station radar unit, and radiates transmitted signals outside said mobile station,a mobile station receiver which processes signals received by said mobile station antenna,a response data base containing pre-stored response data corresponding to said plurality of questions from said base station radar unit,a question demodulator which demodulates said plurality of question signals contained in the output of said mobile station receiver, and reads a corresponding plurality of responses from said response data base based on these demodulated results,a response generator which generates a plurality of response signals based on the output of said question demodulator, anda mobile station transmitter which modulates said plurality of response signals output by said response generator, and outputs the results to said mobile station antenna.
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Accused Products
Abstract
A vehicle ID radar system has a simple construction and obtains high identifying performance by making a general identification based on a plurality of responses. There are provided an antenna for obtaining a plurality of question signals from a base station radar unit, a receiver for processing the signals received from the antenna, a question code demodulator for demodulating question codes from the received signals, a question code decoder for decoding the question codes and reading responses respectively corresponding to the plurality of questions from a plurality of data bases, a response code generator for generating response signals, and a transmitter for modulating the response signals and supplying them to the antenna.
20 Citations
23 Claims
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1. A moving target identifying system comprising
a base station radar unit comprising: -
a question generator which generates a plurality of predetermined questions, a base station transmitter which modulates and outputs said plurality of question signals output by said question generator, a base station antenna which radiates the output of said base station transmitter outside said base station, and receives signals from outside said base station, a base station receiver which processes signals received by said base station antenna, a moving target information data base wherein anticipated responses to said plurality of questions are stored, a response demodulator which demodulates a plurality of response signals contained in the output of said base station receiver so as to obtain a plurality of responses, and reads a corresponding plurality of anticipated responses from said moving target information data base based on these demodulated results, and identifying means which identifies moving targets by comparing said plurality of responses with said plurality of anticipated responses, and further comprises; a mobile station radar unit comprising; a mobile station antenna which receives transmitted signals from said base station radar unit, and radiates transmitted signals outside said mobile station, a mobile station receiver which processes signals received by said mobile station antenna, a response data base containing pre-stored response data corresponding to said plurality of questions from said base station radar unit, a question demodulator which demodulates said plurality of question signals contained in the output of said mobile station receiver, and reads a corresponding plurality of responses from said response data base based on these demodulated results, a response generator which generates a plurality of response signals based on the output of said question demodulator, and a mobile station transmitter which modulates said plurality of response signals output by said response generator, and outputs the results to said mobile station antenna.
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2. A base station radar unit comprising:
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a question generator which generates a plurality of predetermined questions, a base station transmitter which modulates and outputs said plurality of question signals output by said question generator, a base station antenna which radiates the output of said base station transmitter outside said base station, and receives signals from outside said base station, a base station receiver which processes signals received by said base station antenna, a moving target information data base wherein anticipated responses to said plurality of questions are stored, a response demodulator which demodulates a plurality of response signals contained in the output of said base station receiver so as to obtain a plurality of responses, and reads a corresponding plurality of anticipated responses from said moving target information data base based on these demodulated results, and identifying means which identifies moving targets by comparing said plurality of responses with said plurality of anticipated responses. - View Dependent Claims (5, 7)
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3. A mobile station radar unit comprising:
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a mobile station antenna which receives transmitted signals from outside said mobile station, and radiates transmitted signals outside said mobile station, a mobile station receiver which processes signals received by said mobile station antenna, a response data base containing pre-stored response data corresponding to a plurality of questions from outside said mobile station, a question demodulator which demodulates a plurality of question signals contained in the output of said mobile station receiver, and reads a corresponding plurality of responses from said response data base based on these demodulated results, a response generator which generates a plurality of response signals based on the output of said question demodulator, and a mobile station transmitter which modulates said plurality of response signals output by said response generator, and outputs the results to said mobile station antenna. - View Dependent Claims (4, 6)
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8. A base station radar unit comprising:
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a question generator which generates a predetermined question, a pulse generator which generates pulses at predetermined intervals, a switch which selects and outputs either the output of said question generator or the output of said pulse generator, a base station transmitter which modulates and outputs the signal output by said switch, a base station antenna which radiates the output of said base station transmitter outside said base station, and receives a signal from outside said base station, a base station receiver which processes a signal received by said base station antenna, a moving target information data base wherein an anticipated response to said questions are stored, a response demodulator which demodulates a response signal contained in the output of said base station receiver so as to obtain a response when the output of said question generator is selected, and reads an anticipated response from said moving target information data base based on this demodulated result, moving target measuring means which collects data about a moving target based on a reflected signal from said moving target output by said base station receiver when said pulse generator is selected, identifying means which identifies said moving target by comparing the response and anticipated response output by said response demodulator with information about said moving target output by said moving target measuring means. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A base station radar unit comprising:
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a question generator which generates a predetermined question, a pulse generator which generates pulses at predetermined intervals, a switch which selects and outputs either the output of said question generator or the output of said pulse generator, a base station transmitter which modulates and outputs the signal output by said switch, a base station antenna which radiates the output of said base station transmitter to outside said base station, and receives a signal from outside said base station, a base station receiver which processes said signal received by said base station antenna, a moving target information data base wherein an anticipated response to said question is stored, a response demodulator which demodulates a response signal contained in the signal received from a moving target output by said base station receiver when the output of said question generator is selected, and reads an anticipated response from said moving target information data base based on this demodulated result, a moving target detector which detects said moving target based on a reflected signal from said moving target output by said base station receiver when said pulse generator is selected, a moving target tracking device which tracks said moving target when said moving target is detected by said moving target detector, and an antenna driver for orienting said base station antenna toward said moving target based on the output of said moving target tracking device.
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17. A base station radar unit comprising:
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a question generator which generates a predetermined question, a base station transmitter which modulates and outputs question signals output by said question generator, a base station antenna which radiates the output of said base station transmitter outside said base station, and receives signals from outside said base station, a base station receiver which processes a signal received from a moving target by said base station antenna, a moving target information data base wherein anticipated responses to said questions are stored, a response demodulator which demodulates a response signal contained in the output of said base station receiver so as to obtain a response, and reads a corresponding anticipated response from said moving target information data base based on this demodulated result, imaging means that obtains an image of a moving target, moving target recognizing means which obtains information about said moving target based on the output of said imaging means, and identifying means which identifies said moving target by comparing the response and anticipated response output by said response demodulator with information about said moving target output by said recognizing means.
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18. A mobile station radar unit comprising:
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a mobile station antenna which receives a transmitted signal from outside said mobile station, and radiates a transmitted signal outside said mobile station, a mobile station receiver which processes said signal received by said mobile station antenna, a response data base containing pre-stored response data corresponding to a question from outside said mobile station, a question demodulator which demodulates a question signal contained in the output of said mobile station receiver, and reads a corresponding response from said response data base based on this demodulated result, a response generator which generates a response signal based on the output of said question demodulator, a pulse generator which generates pulses at predetermined intervals, a switch which selects and outputs either the output of said question generator or the output of said pulse generator, a mobile station transmitter which modulates the signal output by said switch, and outputs the result to said mobile station antenna, and target measuring means which obtains information about an external target output by said mobile station receiver based on a reflected signal from said target when the output of said pulse generator is selected. - View Dependent Claims (19, 20)
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21. A moving target identifying system comprising
a base station radar unit comprising: -
a question generator which generates a predetermined question, a charge storing command generator which generates a predetermined charge storing command, a switch which selects either the output of said question generator or the output of said charge storing command generator, a base station transmitter which modulates and outputs the output of said switch, a base station antenna which radiates the output of said base station transmitter outside said base station, and receives a signal from outside said base station, a base station receiver which processes a signal received by said base station antenna, a moving target information data base wherein an anticipated response to said question is pre-stored, a response demodulator which demodulates a response signal contained in the output of said base station receiver so as to obtain a response, and reads a corresponding anticipated response from said moving target information data base based on this demodulated result, and identifying means which identifies a moving target by comparing said response with said anticipated response, and further comprises; a mobile station radar unit comprising; a mobile station antenna which receives a transmitted signal from said base station radar unit, and radiates a transmitted signal outside said mobile station, a mobile station receiver which processes said signal received by said mobile station antenna, a response data base containing pre-stored response data corresponding to questions from said base station radar unit, a question demodulator which demodulates a question signal contained in the output of said mobile station receiver, and reads a corresponding response from said response data base based on this demodulated result, a response generator which generates a response signal based on the output of said question demodulator, and a mobile station transmitter which modulates said response signal output by said response generator and outputs the result to said mobile station antenna, a distributor which distributes the signals received by said mobile station antenna when a question demodulated by said question demodulator is a charge storing command, a rectifier which rectifies the output signal from said distributor, and an accumulator which functions as a power supply charged by the output of said rectifier.
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22. A base station radar unit comprising:
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a question generator which generates a predetermined question, a charge storing command generator which generates a predetermined charge storing command, a switch which selects either the output of said question generator or the output of said charge storing command generator, a base station transmitter which modulates and outputs the output of said switch, a base station antenna which radiates the output of said base station transmitter outside said base station, and receives a signal from outside said base station, a base station receiver which processes said signal received by said base station antenna, a moving target information data base wherein an anticipated response to said questions is pre-stored, a response demodulator which demodulates a response signal contained in the output of said base station receiver so as to obtain a response, and reads a corresponding anticipated response from said moving target information data base based on this demodulated result, and identifying means which identifies a moving target by comparing said response with said anticipated response.
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23. A mobile station radar equipment comprising:
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a mobile station antenna which receives a transmitted signal from said base station radar unit, and radiates a transmitted signal outside said mobile station, a mobile station receiver which processes said signal received by said mobile station antenna, a response data base containing pre-stored response data corresponding to a question from said base station radar unit, a question demodulator which demodulates a question signal contained in the output of said mobile station receiver, and reads a corresponding response from said response data base based on this demodulated result, a response generator which generates a response signal based on the output of said question demodulator, a mobile station transmitter which modulates said response signal output by said response generator and outputs the result to said mobile station antenna, a distributor which distributes the signals received by said mobile station antenna when a question demodulated by said question demodulator is a charge storing command, a rectifier which rectifies the output signal from said distributor, and an accumulator which functions as a power supply charged by the output of said rectifier.
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Specification