Vehicle GPS tracking device is sufficient for some safety applications
A Global Positioning System (GPS) is a key component of a present day intelligent vehicle. tracker for vehicle can be used to find absolute position and velocity. This is very useful for an autonomous vehicle that has access to a precise map, as it can understand where it is with respect to its destination and with respect to the road network or, for an off-road vehicle, topographic features and obstacles. This information is needed, for example, to compute optimal routes or driving directions. On- or offroad, when combined with a vehicle-to-vehicle wireless communication system, it can also provide relative position and relative speed information.
Autonomous vehicles use all the standard sensors available in a car for self-sensing. Thus speed sensing is available, and variables that are measured in the engine and powertrain or are related to the brakes can be accessed. Furthermore, sensors are needed to measure steering wheel angle and gear shift, but these are fairly easy to design or develop if not already present on the vehicle.
The information available from a waterproof tracking devices is:
• Absolute position in a geodetic coordinate system, for example, latitude longitude-altitude, X-Y-Z Earth centered Earth fixed, or UTM;
• Velocity and course over ground information (horizontal speed and orientation relative to true north);
• Precise time and synchronized pulse per second;
• Raw information that can be used for precise postprocessing applications.
Various level of accuracy in GPS measurements can be obtained, depending on the types and number of GPS signals received and analyzed, the algorithms, and the availability of externally supplied correction data (including differential correction and real-time kinematic correction data). Satellite visibility and geometric configuration is also a significant factor in GPS measurement accuracy, especially in areas with tree foliage coverage or buildings that can occlude signals from certain satellites or create multipath reflections. Generally speaking, in areas with an unobstructed view of the entire sky and barring a particularly bad orbital configuration of visible satellites, a standard inexpensive or embedded electronic tracking devices can achieve position accuracies on the order of 5–15 meters. This is sufficient for providing navigation and routing instructions for a human driver, but is insufficient for resolving which lane a vehicle is currently occupying. The greater recent GPS vehicle tracking systems may be used navigation tools. With such systems your vehicle is going to be on the right course instead of being lost. Scalping methods not only provide direction but furthermore suggest alternate routes to avoid traffic jam. There’s also facts about available parking spaces as well as the nearest transport line.
To achieve the next level of vehicle GPS locator position accuracy, correction signals are available from free and publicly available services, such as the Nationwide Differential GPS (NDGPS) service broadcasting in the long-wave band and satellite-based augmentation systems (SBAS) such as the Wide Area Augmentation System (WAAS) provided by the U.S. Federal Aviation Administration or the European Geostationary Navigation Overlay Service (EGNOS). An appropriately capable GPS receiver, using one of these basic differential correction data services broadcast over a large area of the planet, can achieve position accuracies on the order of 1–2 meters. This is sufficient for some safety applications, and can sometimes resolve lane identity, but is insufficient for autonomous vehicle operations.
More GPS tracking solutions at http://www.jimilab.com/ .
Autonomous vehicles use all the standard sensors available in a car for self-sensing. Thus speed sensing is available, and variables that are measured in the engine and powertrain or are related to the brakes can be accessed. Furthermore, sensors are needed to measure steering wheel angle and gear shift, but these are fairly easy to design or develop if not already present on the vehicle.
The information available from a waterproof tracking devices is:
• Absolute position in a geodetic coordinate system, for example, latitude longitude-altitude, X-Y-Z Earth centered Earth fixed, or UTM;
• Velocity and course over ground information (horizontal speed and orientation relative to true north);
• Precise time and synchronized pulse per second;
• Raw information that can be used for precise postprocessing applications.
Various level of accuracy in GPS measurements can be obtained, depending on the types and number of GPS signals received and analyzed, the algorithms, and the availability of externally supplied correction data (including differential correction and real-time kinematic correction data). Satellite visibility and geometric configuration is also a significant factor in GPS measurement accuracy, especially in areas with tree foliage coverage or buildings that can occlude signals from certain satellites or create multipath reflections. Generally speaking, in areas with an unobstructed view of the entire sky and barring a particularly bad orbital configuration of visible satellites, a standard inexpensive or embedded electronic tracking devices can achieve position accuracies on the order of 5–15 meters. This is sufficient for providing navigation and routing instructions for a human driver, but is insufficient for resolving which lane a vehicle is currently occupying. The greater recent GPS vehicle tracking systems may be used navigation tools. With such systems your vehicle is going to be on the right course instead of being lost. Scalping methods not only provide direction but furthermore suggest alternate routes to avoid traffic jam. There’s also facts about available parking spaces as well as the nearest transport line.
To achieve the next level of vehicle GPS locator position accuracy, correction signals are available from free and publicly available services, such as the Nationwide Differential GPS (NDGPS) service broadcasting in the long-wave band and satellite-based augmentation systems (SBAS) such as the Wide Area Augmentation System (WAAS) provided by the U.S. Federal Aviation Administration or the European Geostationary Navigation Overlay Service (EGNOS). An appropriately capable GPS receiver, using one of these basic differential correction data services broadcast over a large area of the planet, can achieve position accuracies on the order of 1–2 meters. This is sufficient for some safety applications, and can sometimes resolve lane identity, but is insufficient for autonomous vehicle operations.
More GPS tracking solutions at http://www.jimilab.com/ .
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