S.m.s. Smart Microwave Sensors Gmbh

Volkswagen Ag

Automotive Distance Control Systems Gmbh

Ralph Mende

Marc-Michael Meinecke

Hermann Rohling

Arne Bartels

Peter Andreas

Ralf Bergholz

Thomas Ruchatz

Arnold Ensslen

Marc Behrens

Thanh-Binh To

Alexander Scholz

Rudolf Mai

Jiri Jerhot

Christoph Weihrauch

Tobias Teubner

André Zander

Fabian Kyrisch

Jens Kroeger

Stefan Doebbelin

Karsten Schumann

Stefan DÖBBELIN

Thomas Ruchartz

Arnold Dipl-Ing Ensslen

Examples include a system for controlling traffic signalling devices at an intersection, including a first radar sensor that detects road users in a first detection region on a first traffic route, outputting first radar sensor data indicating first sensor detected positions and a first sensor detected radial velocities, and a second radar sensor that detects road users in a second detection region on a second traffic route, outputting second sensor data indicating second sensor detected positions and a second sensor detected velocities. The first radar sensor and second radar sensor are at different locations, or different orientations, or both, and configured such that the first and second detection region have an overlap. An electronic data processing device combines the first radar sensor data and second radar sensor data into combination signals, and controls the traffic signalling devices based at least partially on the combination signals.

System for controlling a traffic management system at an intersection

The invention relates to a method for determining at least one parameter of an object, wherein the method comprises the following steps:

Method and device for determining at least one parameter of an object

The invention relates to a method for determining the distance and radial speed of an object relative to a measuring point, wherein the method comprises the following steps:

Method for determining the distance and speed of an object

The invention relates to a method for detecting road users along at least one traffic route, wherein the method comprises the following steps:

Method for detecting road users

The intended position and/or an intended alignment of at least one sensor for monitoring traffic at a traffic route is determined easily, quickly and reliably with the aid of computer technology. The methodology employed involves identification of a traffic route to be monitored in a data processing device, and requesting and providing data about the traffic route from a database. From this, at least one possible target position and/or target orientation is determined from the provided data. The methodology avoids the need to manually enter lanes and other local conditions of the traffic route. Instead, the data processing device recalls the required traffic data from a database, and based on manipulation of a graphical representation of the sensor by the user with the aid of the provided data and specified sensor characteristics an intended position and/or intended alignment of a sensor can be visualized and stored for later use during installation.

Method for determining a position and/or orientation of a sensor

The invention relates to a method for determining a detection range () of a traffic route () in which traffic participants can be detected by a transmitting and receiving device (), wherein the transmitting and receiving device () is arranged at a device position in a device orientation and is designed to emit a transmitted radiation and to receive reflected transmitted radiation, wherein the method comprises the following steps: a) calculating a spatial detecting range of the transmitting and receiving device () at least also from the device position and the device orientation by means of a 3D model, b) determining an aerial detecting range in a measurement plane () from the spatial detecting range, and c) determining the detecting range () from the areal detecting range.

Method and device for determining a detection range of a traffic route

A sensor device () is designed to detect road users along a stretch of a roadway and comprises a transmission and/or reception unit for emitting and/or receiving a transmission radiation. Said sensor device () is characterized in that the same includes at least one ascertainment unit for ascertaining an actual position and/or an actual orientation of the sensor device ().

Sensor device

The invention relates to a method for determining the distance (R) and relative speed (v) of at least one object remote from an observation point, comprising the following method steps: continuous transmission of at least one first and one second electromagnetic signal in each case of a signal period (T) from the observation point; the signals consist of signal portions (bursts) having a constant frequency and a predetermined equal duration, wherein the signal portions of a signal cover a predetermined modulation range by means of frequency steps; the signals are transmitted interlaced in that signal portions of the different signals follow one another in time, wherein a frequency hop occurs between the successive signal portions of different signals, receiving the signals reflected by the object as an echo signal and carrying out a mixed operation with the transmission signal for transformation of the received signal into the baseband in a common analog channel; carrying out an analog-to-digital conversion and sampling the received signal portions of the echo signals and extraction of at least one sampling value for each signal portion; separately evaluating the sampling values for the different echo signals of the different emitted signals by means of a Fourier transformation stage and determining the frequency of the peaks corresponding to signal portions and determining a phase difference between the echo signals of the transmitted signals, characterised in that the signal portions of the second signal (B) are transmitted by means of the same frequencies as corresponding signal portions of the first signal (A).

Method for determining the distance and relative speed of a remote object

The invention relates to a device () to be arranged on a motor vehicle (). Said device () comprises a speedometer () for ascertaining a relative speed between an object and a device (), at least one warning mechanism () for emitting a warning signal in the direction of the object, find an electric controller which is designed to emit a warning signal via the at least one warning mechanism () when the ascertained relative speed exceeds a predefined threshold value.

Vehicle warning device for emitting a warning signal

A measuring device , e.g., a measuring device for a motor vehicle, is for measuring a distance between the measuring device and at least one object and/or measuring a difference in speed between the measuring device and the at least one object. The measuring device includes an emitting apparatus for transmitting a transmission signal encompassing at least two sequences of signal portions, a first sequence of signal portions and a second sequence of signal portions with two respective temporally alternating signal portions. The frequency of at least two signal portions of a sequence of signal portions differs by one respective difference frequency, the difference frequency of the first sequence of signal portions being different from the difference frequency of the second sequence of signal portions.

Measuring device for a motor vehicle

For detection of an electromagnetic signal, which is transmitted from a transmitting antenna (), by means of at least two at least essentially identical receiving antennas (), whose sensitivity curve has a maximum (M) with falling flanks as well as sidelobes (SL) adjacent to it with sensitivity increased again at a reception angle symmetrically with respect to a basic alignment, with angle determination for an object which reflects the transmitted signal being carried out by the two receiving antennas () by phase determination in an unambiguous interval (&#x3b8;) whose boundaries (L) are predetermined by the distance (d) between the receiving antennas (), the distance (d) is chosen such that the boundaries (L) of the unambiguity area (&#x3b8;) intersect the sidelobes (SL), and the reflective object is detected by means of vectorial addition of the signals from the receiving antennas (), after which the parameters R, v are determined.

Method and apparatus for detection of an electromagnetic signal reflected from and object

The invention relates to a sensor comprising a housing, inside of which a transmitting antenna array that transmits electromagnetic transmission signals in a radiation area and a receiving antenna array that receives received signals reflected by at least one object located within the radiation area are provided. The inventive sensor is designed in such a manner that the transmitting antenna array is provided for transmitting transmission signals in a main radiation area () and in a secondary radiation area () situated at an angle, thereto, and in that the receiving antenna array (TX) is provided for receiving received signals reflected in both radiation areas (). This makes it possible, for example when used in a monitor vehicle (), to monitor the area behind and next to the motor vehicle () with a single transmitting antenna ().

Sensor for transmitting and receiving electromagnetic signals

In a method for determination of the length of objects in traffic, especially passenger cars, trucks, buses, motorbikes, bicycles and pedestrians, radar signals are transmitted by a vehicle, the radar signals are reflected by an object being measured, the reflected radar signals are received in the vehicle, the frequency spectra of the reflected radar signals are evaluated, and the reflection peaks contained in the frequency spectra are determined. Length measurement, by means of known radar sensors, from a vehicle is made possible by the fact that the width of the reflection peaks is determined, and that the length of the object being measured is determined by means of the determined width.

Length measurement with radar

The distance and relative speed of an object remote from an observation point determined using a signal form which includes two signals having a predetermined spacing relative to each other. The two signals are transmitted for a certain time interval during which the frequency of the signals is modulated in a stepwise fashion. Additionally, the signal sections of the two signals are transmitted alternately for each step so that there is a predetermined frequency spacing between the signal sections being emitted consecutively.

Method and device for determining separation and relative speed of a distant object

A radar system is operated by controlling and thereby limiting the mean power of the transmitted signal in response to the mean power of the received signal thereby limiting the power to a predetermined power range. Preferably the power control or regulation is performed by varying the pulse repetition frequency and/or the pulse duration of the transmitter pulses. This method is well suited for operating a motor vehicle range warning system.

Growing community of inventors

Braunschweig, Germany

Ralph Mende