Radar device for vehicle use
First Claim
1. A radar device for vehicle use comprising;
- an FM radar module for monitoring an adjacent object including a plurality of adjacent object monitoring antennas, a signal transmitting/receiving section for supplying transmitting FM signals to said adjacent object monitoring antennas and outputting beat signals by mixing said transmitting FM signals with received FM signals supplied from said adjacent monitoring antennas, and a delay circuit inserted between said signal transmitting/receiving section and said adjacent object monitoring antennas,an FM radar module for monitoring a remote object including a remote object monitoring antenna and a signal transmitting/receiving section for feeding transmitting FM signals to said remote object monitoring antenna and generating beat signals by mixing said transmitting FM signals with received FM signals supplied from said remote monitoring antenna, anda monitoring controller controlling operations of said FM radar module for monitoring an adjacent object and said FM radar module for monitoring a remote object, said monitoring controller receiving said beat signals output from said FM radar modules and detecting a range to an object which generates reflected signals based on frequencies of said beat signals.
1 Assignment
0 Petitions
Accused Products
Abstract
A radar device for vehicle use which can be manufactured inexpensively while enhancing its monitoring function for an adjacent object as well as a remote object. The radar device includes a radar module for monitoring an adjacent object having a plurality of adjacent object monitoring antennas, a signal transmitting/receiving section for supplying transmitting signals to the adjacent object monitoring antennas and outputting signals by mixing the transmitting signals with received signals supplied from the adjacent monitoring antennas and a delay circuit inserted between the signal transmitting/receiving section and the adjacent object monitoring antennas. The radar device also includes a module for monitoring a remote object having a remote object monitoring antenna and a signal transmitting/receiving section for supplying transmitting signals to the remote object monitoring antenna and generating signals by mixing the transmitting signals with received signals supplied from the remote monitoring antenna. The radar device has a monitoring control section for controlling the operations of both the radar module for monitoring an adjacent object and the radar module for monitoring a remote object and the monitoring control section receives the signals output from the radar modules and detects the range to the object which generates reflected signals based on the beat signals.
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Citations
27 Claims
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1. A radar device for vehicle use comprising;
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an FM radar module for monitoring an adjacent object including a plurality of adjacent object monitoring antennas, a signal transmitting/receiving section for supplying transmitting FM signals to said adjacent object monitoring antennas and outputting beat signals by mixing said transmitting FM signals with received FM signals supplied from said adjacent monitoring antennas, and a delay circuit inserted between said signal transmitting/receiving section and said adjacent object monitoring antennas, an FM radar module for monitoring a remote object including a remote object monitoring antenna and a signal transmitting/receiving section for feeding transmitting FM signals to said remote object monitoring antenna and generating beat signals by mixing said transmitting FM signals with received FM signals supplied from said remote monitoring antenna, and a monitoring controller controlling operations of said FM radar module for monitoring an adjacent object and said FM radar module for monitoring a remote object, said monitoring controller receiving said beat signals output from said FM radar modules and detecting a range to an object which generates reflected signals based on frequencies of said beat signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A radar device for vehicle use comprising;
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an AM radar module for monitoring an adjacent object including a plurality of adjacent object monitoring antennas, a signal transmitting/receiving section for supplying transmitting AM signals to said adjacent object monitoring antennas and outputting detected signals obtained by detecting received AM signals supplied from said antennas, and a delay circuit inserted between said signal transmitting/receiving section and said adjacent object monitoring antennas, an AM radar module for monitoring a remote object including a remote object monitoring antenna and a signal transmitting/receiving section for supplying transmitting AM signals to said remote object monitoring antenna and outputting detected signals obtained by detecting received AM signals supplied from said remote monitoring antenna, and a monitoring controller controlling operations of said AM radar module for monitoring an adjacent object and said AM radar module for monitoring a remote object, said monitoring controller receiving modulated signals output from said radar modules and detecting a range to an object based on a phase difference between said received detected signals and modulated signals employed for generating said AM signals. - View Dependent Claims (12)
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13. A radar device for vehicle use comprising;
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a pulse radar module for monitoring an adjacent object including a plurality of adjacent object monitoring antennas, a signal transmitting/receiving section for supplying transmitting pulse signals to said adjacent object monitoring antennas and outputting received pulse signals supplied from said adjacent monitoring antennas, and a delay circuit inserted between said signal transmitting/receiving section and said adjacent object monitoring antennas, a pulse radar module for monitoring a remote object including a remote object monitoring antenna and a signal transmitting/receiving section for supplying transmitting pulse signals to said remote object monitoring antenna and outputting received pulse signals from said remote monitoring antenna, and a monitoring controller controlling operations of said pulse radar module for monitoring an adjacent object and said pulse radar module for monitoring a remote object, said monitoring controller being capable of detecting a range to an object based on a generating timing of received pulse signals output from said pulse radar modules. - View Dependent Claims (14)
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- 15. A radar system which transmits a high frequency signal to an object and receives a reflected signal from said object for detecting a range to said object based on said transmitted signal and said received signal comprising a first antenna having a wide directivity, a second antenna having a narrow directivity and means for switching operations of said first antenna and said second antenna on a time sharing basis.
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20. A radar device for vehicle use comprising;
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a first radar module for monitoring an adjacent object including a plurality of adjacent object monitoring antennas, a signal transmitting/receiving section for supplying transmitting signals to said adjacent object monitoring antennas and outputting received signals supplied from said adjacent monitoring antennas, and a delay circuit between said signal transmitting/receiving section and said adjacent object monitoring antennas, a second radar module for monitoring a remote object including a remote object monitoring antenna and a signal transmitting/receiving section for feeding transmitting signals to said remote object monitoring antenna and outputting received signals fed from said remote monitoring antenna, and a monitoring controller for controlling operation of said first and second radar modules, said monitoring controller receiving said signals output from said first and second modules and detecting a range to an object which generates reflected signals. - View Dependent Claims (21, 22, 23)
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24. A radar device for vehicle use comprising:
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an FM radar module for monitoring an adjacent object including a plurality of adjacent object monitoring antennas, and a signal transmitting/receiving section for supplying transmitting FM signals to said adjacent object monitoring antennas and outputting beat signals by mixing said transmitting FM signals with received FM signals supplied from said adjacent monitoring antennas, an FM radar module for monitoring a remote object monitoring antenna and a signal transmitting/receiving section for feeding transmitting FM signals to said remote object monitoring antenna and generating beat signals by mixing said transmitting FM signals with received FM signals supplied from said remote monitoring antenna, and a monitoring controller controlling operations of said FM radar module for monitoring an adjacent object and said FM radar module for monitoring a remote object, said monitoring controller receiving said beat signals output from said FM radar modules and detecting a range to an object which generates reflected signals based on frequencies of said beat signals.
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25. A radar device for vehicle use comprising:
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an AM radar module for monitoring an adjacent object including a plurality of adjacent object monitoring antennas, and a signal transmitting/receiving section for supplying transmitting AM signals to said adjacent object monitoring antennas and outputting detected signals obtained by detecting received AM signals supplied from said antennas, an AM radar module for monitoring a remote object including a remote object monitoring antenna and a signal transmitting/receiving section for supplying transmitting AM signals to said remote object monitoring antenna and outputting detected signals obtained by detecting received AM signals supplied from said remote monitoring antenna, and a monitoring controller controlling operations of said AM radar module for monitoring an adjacent object and said AM radar module for monitoring a remote object, said monitoring controller receiving modulated signals output from said radar modules and detecting a range to an object based on a phase difference between said received detected signals and modulated signals employed for generating said AM signals.
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26. A radar device for vehicle use comprising:
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a pulse radar module for monitoring an adjacent object including a plurality of adjacent object monitoring antennas, and a signal transmitting/receiving section for supplying transmitting pulse signals to said adjacent object monitoring antennas and outputting received pulse signals supplied from said adjacent monitoring antennas, a pulse radar module for monitoring a remote object including a remote object monitoring antenna and a signal transmitting/receiving section for supplying transmitting pulse signals to said remote object monitoring antenna and outputting received pulse signals from said remote monitoring antenna, and a monitoring controller controlling operations of said pulse radar module for monitoring an adjacent object and said pulse radar module for monitoring a remote object, said monitoring controller being capable of detecting a range to an object based on a generating timing of received pulse signals output from said pulse radar modules.
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27. A radar device for vehicle use comprising:
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a first radar module for monitoring an adjacent object including a plurality of adjacent object monitoring antennas, and a signal transmitting/receiving section for supplying transmitting signals to said adjacent object monitoring antennas and outputting received signals supplied from said adjacent monitoring antennas, a second radar module for monitoring a remote object including a remote object monitoring antenna and a signal transmitting/receiving section for feeding transmitting signals to said remote object monitoring antenna and outputting received signals fed from said remote monitoring antenna, and a monitoring controller for controlling operation of said first and second radar modules, said monitoring controller receiving said signals output from said first and second modules and detecting a range to an object which generates reflected signals.
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Specification