摘要:
Verfahren zur Datenübertragung in einem System zur Ortsbestimmung von mindestens einem Flurförderzeug in einem Bereich mit einer Vielzahl von stationären Funkstationen, die, ansprechend auf ein Positionsbestimmungssignal, ein Positionssignal aussenden, wobei das Flurförderzeug eine mobile Funkstation aufweist, mit folgenden Verfahrensschritten: - Senden eines Positionsbestimmungssignals mit der mobilen Funkstation an die stationären Funkstationen, - Senden jeweils eines Positionssignals durch die stationären Funkstationen, ansprechend auf ein empfangenes Positionsbestimmungssignal, - Empfangen von mehreren Positionssignalen mit der mobilen Funkstation von mindestens drei stationären Funkstationen, - Anhängen von zusätzlichen Daten in Form von Fahrzeugdaten an das Positionsbestimmungssignal und/oder in Form von Bereichsdaten an das Positionssignal, - Auswerten der zusätzlichen Daten nach Empfang des Positionsbestimmungssignals und/oder des Positionssignals, und - Ermitteln einer aktuellen Fahrzeugposition aus mindestens drei empfangenen Positionssignalen.
摘要:
A roadside detection system (100), a roadside unit (104) and a roadside communication method are provided. The roadside unit (104) receives a positioning signal from a satellite positioning system and obtains roadside latitude and longitude coordinates and an initialization parameter coordinate. The roadside unit (104) receives object information of the object. The roadside unit (104) obtains object latitude and longitude coordinates, an object speed, an object acceleration, an object length, and an object heading/direction based on the roadside latitude and longitude coordinates, the initialization parameter coordinate, and the object information. The roadside unit (104) converts the object latitude and longitude coordinates, the object speed, the object acceleration, the object length, and the object heading/direction into a V2V Basic Safety Message format.
摘要:
Es wird ein Verfahren zum Bestimmen einer Relativposition zwischen einem Egoobjekt (1) und einem Zielobjekt (2) vorgestellt, das insbesondere bei bewegten Fahrzeugen angewendet werden kann. Das Verfahren weist folgende Schritte auf: a) Bestimmen einer autonomen Relativposition des Zielobjektes (2); b) Suchen nach einer von dem Zielobjekt (2) ausgesendeten Information über die Position des Zielobjektes (2); c) Wenn die Information des Zielobjektes (2) detektiert wird: i) Bestimmen einer kooperativen Relativposition des Zielobjektes (2) aus der Information; ii) Bestimmen der Relativposition des Zielobjektes (2) aus einer Fusion der autonomen Relativposition und der kooperativen Relativposition;
d) Wenn die Information des Zielobjektes (2) nicht detektiert wird: Bestimmen der Relativposition aus der autonomen Relativposition.
摘要:
Extending the activation and tracking capability of stolen vehicle recovery dedicated radio-frequency networks by the supplementary use of widely geographically provided cellular telephone-frequency band networks.
摘要:
The present invention is directed to utilizing monitoring devices (200) for determining the effectiveness of various locations, such as media display locations (150) for an intended purpose (media display exposure). The monitoring devices (200) are distributed to a number of study respondents. The monitoring devices (200) track the movements of the respondents. While various technologies may be used to track the movements of the respondents, at least some of the location tracking of the monitoring device (200) utilize a satellite (105) location system such as the global positioning system ('GPS'). These movements of the respondent and monitoring device (200) at some point coincide with exposure to a number of media displays (150). Geo data (movement data) collected by the monitoring devices, is downloaded to a downloaded server (300), for determining which media displays (150) the respondent was exposed to. The exposure determinations are made by a post-processing server (400).
摘要:
A system for inferring a set of characteristics and method for inferring an electronic rendering (170) of an environment (110) comprises a plurality of devices (341 and 345) and a processing device. Each wireless device is capable of determining a distance between a neighboring wireless device. Moreover, each device is capable of performing at least one of the following: determining an environmental attribute of the environment, and determining a location of an object in the environment. The processing device gathers information determined from the plurality of devices and infers the set of characteristics electronic rendering of the environment based on the information gathered.
摘要:
An asset tracking system (300) and a method of operation, the system including a tracking device (310) for mounting on an asset, a tracking device management system (360, 370) and a cellular telephone network (330). The tracking device (310) is comprised of a cellular telephone device. The tracking device management system (360, 370) has a tracking system server (360) comprising a database for storing data pertaining to the system (300) and a management system communication interface for interfacing with the tracking system server (360). The cellular telephone network (330) is provided between the cellular telephone device and the tracking device management system (360, 370) to enable the tracking device management system (360, 370) to communicate with the tracking device (310). Further, the tracking device (310) is configured to transmit a message to the tracking device management system (360, 370) through the cellular telephone network (330) and the tracking device management system (360, 370) is configured to transmit a message receipt confirmation through the cellular telephone network (330) to the tracking device (310) in response.
摘要:
A method an arrangement to reduce amount data to be sent in a tracking system of a mobile station (MTT) having a positioning device to obtain positioning data, and the mobile station (MTT) and the server (S) perform the following steps: the mobile station (MTT) sends its dynamic state parameters including at least the position and velocity, which are derived from the positioning measurements, to server (S), the mobile station (MTT) computes an error criterion based on said sent dynamic state and current dynamic state, which is derived from new positioning measurements, such that the error criterion is calculated based on at least sent and current velocities, the mobile station (MTT) sends a set of new dynamic state parameters, when the said error criterion is over a predefined limit.