Method and device for the position determination of objects in road traffic, based on communication signals, and use of the device
First Claim
1. A method for communication signal-based position determination of objects in road traffic, comprising the steps of:
- transmitting wirelessly at least one data-transporting communication signal by at least one sender,wherein the at least one communication signal is reflected at least proportionally as a reflection signal by at least one object,receiving the at least one communication signal and the reflection signal by a receiver, and wherein the receiver determines a location of the at least one sender,determining a propagation time difference between the communication signal and the reflection signal by the receiver and a location of the object by the receiver,determining at least one Doppler frequency by mixing the at least one communication signal with an associated one of the reflection signal,the receiver, as a result of temporal observation of a change in the Doppler frequency, assigning thereto a relative-speed-dependent distance curve, the profile of the curve containing the position of at least one of the objects.
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Accused Products
Abstract
The invention relates to a method for the communication signal-based position determination of objects in road traffic, in which at least one data transporting communication signal is wirelessly transmitted from at least one sender (217, 218, 219, 220, 221, 34) and is reflected at least proportionally as a reflection signal on at least one object (211, 212, 213, 214, 215, 216, 35), wherein the at least one communication signal and the reflection signal are received by a receiver (222, 33), and wherein the of at least one sender (217, 218, 219, 220, 221, 34). The method is characterized in that a propagation time difference of the communication signal and the reflection signal is determined by the received (222, 33). The invention further relates to a corresponding device (100) and to the use thereof.
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Citations
23 Claims
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1. A method for communication signal-based position determination of objects in road traffic, comprising the steps of:
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transmitting wirelessly at least one data-transporting communication signal by at least one sender, wherein the at least one communication signal is reflected at least proportionally as a reflection signal by at least one object, receiving the at least one communication signal and the reflection signal by a receiver, and wherein the receiver determines a location of the at least one sender, determining a propagation time difference between the communication signal and the reflection signal by the receiver and a location of the object by the receiver, determining at least one Doppler frequency by mixing the at least one communication signal with an associated one of the reflection signal, the receiver, as a result of temporal observation of a change in the Doppler frequency, assigning thereto a relative-speed-dependent distance curve, the profile of the curve containing the position of at least one of the objects. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A device for the communication signal-based position determination of objects in road traffic, comprising:
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a communication unit for wirelessly receiving data-transporting communication signals from senders and for wirelessly receiving reflection signals of the communication signals, the reflection signals being reflected by objects, location determining means for determining locations of senders of the communication signals, position determining means for determining a position of the device, a propagation time difference determining means, and the device is configured to determine the position of the objects, Doppler frequency determining means for determining Doppler frequencies generated as a result of relative movements of the objects with respect to a baseline between the receiver and the sender, and in that the device furthermore comprises distance assigning means which, as a result of temporal observation of a change in the Doppler frequencies, assign thereto in a relative-speed-dependent distance curve, the profiles of which contain the position of at least one of the objects. - View Dependent Claims (21, 22, 23)
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Specification