A traffic radar system (TRS) utilizing an automated test process which aids the operator in quickly conducting comprehensive system tuning fork tests that includes front and rear antennas and stationary, moving opposite, and moving same-lane operations. The automated process has the ability to select the proper radar antenna and proper mode of operation for each step of the test. The process will measure the input fork signals and report if the signals are within the specified tolerance. Optionally, the process can be set to not allow the radar system to enter the normal operating mode if the tuning fork tests have not been successfully completed.

A traffic radar system (TRS) utilizing an automated test process which aids the operator in quickly conducting comprehensive system tuning fork tests that includes front and rear antennas and stationary, moving opposite, and moving same-lane operations. The automated process has the ability to select the proper radar antenna and proper mode of operation for each step of the test. The process will measure the input fork signals and report if the signals are within the specified tolerance. Optionally, the process can be set to not allow the radar system to enter the normal operating mode if the tuning fork tests have not been successfully completed.

A laser-based speed gun includes a camera module and a folded optical system including an objective lens and an eyepiece lens. The folded optical system includes first and second image redirecting elements for redirecting an image pathway from the objective lens to the eyepiece lens adjacent the camera module.

A data expansion system that provides for wireless communication includes a set of roadway communication devices configured to enable vehicle-to-vehicle (V2V) communication. The system includes a first roadway communication device configured to receive data from a first electronic device in a first vehicle and a second roadway communication device communicatively coupled to the first roadway device. The second roadway communication device is configured to communicate the data to a second electronic device in a second vehicle. Each roadway communication device includes a wireless transceiver to transmit and receive data; a communication interface to establish communication links with other roadway communication devices; and processing circuitry to relay the data between the other roadway communication devices or electronic devices in respective vehicles. Each roadway communication device also includes a housing that contains the processing circuitry, communication interface and the wireless transceiver. The housing is configured to be mounted within a roadway surface.

A data expansion system that provides continuum of discrete wireless small cell coverage areas for electronic devices in vehicles includes a set of traffic control devices configured to provide communicate information regarding the presence of an obstruction in a vehicle or pedestrian path. The system includes a first traffic control device configured to communicate with an electronic device in a first vehicle. The system also includes a second traffic control device communicatively coupled to the first traffic control device. The second traffic control device is configured to detect a presence of an object. The second traffic control device also is configured to communicate the presence of the object to at least one of: a network controller, the first traffic control device, or another traffic control device.

The invention relates to a process for monitoring vehicles on a road by a system comprising at least one radar sensor and a second sensor different from the radar sensor, wherein the second remote sensor is a time-of-flight optical sensor or optical image sensor, the process comprising a temporal readjustment and a spatial matching in order to obtain a set of measurement points each assigned to first characteristics derived from the radar data and second characteristics derived from the optical data, the determination of the radar vehicle trackings and of the optical vehicle trackings, a comparison of similarity between the radar vehicle trackings and the optical vehicle trackings, the elimination of the radar vehicle trackings for which no optical vehicle tracking is similar, the process comprising monitoring a parameter derived from first characteristics of a retained radar vehicle tracking.

An abnormality detection method of an infrastructure sensor apparatus according to the present disclosure is an abnormality detection method of an infrastructure sensor apparatus configured to detect a mobile body that passes within a sensing range, the abnormality detection method including: calculating mobile body information at least including positional information and moving speed information on the mobile body based on information on the mobile body detected by the infrastructure sensor apparatus; calculating probe data at least including positional information and moving speed information on the mobile body based on self positional information of the mobile body received using a radio communication function included in the mobile body; and performing abnormality determination processing in which it is determined that there is an abnormality in the infrastructure sensor apparatus when the mobile body information does not match the probe data.

A system and methods are provided for providing intersection positioning data. In one embodiment, a method includes detecting one or more objects by a device, wherein the one or more objects are detected relative to at least a portion of a roadway by an integrated radar sensor of the device, and tracking one or more detected objects by the device to determine tracking data, wherein tracking includes determining a number of detected objects, determining speed of the one or more detected objects and determining position of the one or more detected objects. The method may also include outputting the tracking data by the device. The system and methods may advantageously be employed for transmitting one or more of a collision warning, red light warnings, red light violation warnings and operation characteristics of objects during a traffic incident relative to intersection.

A system and methods are provided for providing intersection positioning data. In one embodiment, a method includes detecting one or more objects by a device, wherein the one or more objects are detected relative to at least a portion of a roadway by an integrated radar sensor of the device, and tracking one or more detected objects by the device to determine tracking data, wherein tracking includes determining a number of detected objects, determining speed of the one or more detected objects and determining position of the one or more detected objects. The method may also include outputting the tracking data by the device. The system and methods may advantageously be employed for transmitting one or more of a collision warning, red light warnings, red light violation warnings and operation characteristics of objects during a traffic incident relative to intersection.

A traffic radar system comprises a first radar transceiver, a second radar transceiver, a speed determining element, and a processing element. The first radar transceiver transmits and receives radar beams and generates a first electronic signal corresponding to the received radar beam. The second radar transceiver transmits and receives radar beams and generates a second electronic signal corresponding to the received radar beam. The speed determining element determines and outputs a speed of the patrol vehicle. The processing element is configured to receive a plurality of digital data samples derived from the first or second electronic signals, receive the speed of the patrol vehicle, process the digital data samples to determine a relative speed of at least one target vehicle in the front zone or the rear zone, and convert the relative speed of the target vehicle to an absolute speed using the speed of the patrol vehicle.