When the lost person is further away, the locating application employs cell phone tower triangulation or the wearable unit GPS/Assisted GPS application to determine an approximate location of the lost person. As the caregiver moves close enough to the approximate location, the radio direction finder...
gps gsm gprs vehicle tracking system Network GSM/GPRS, smart security alarm DIM 83*54*26mm, GPS car alarms Weight 120g, car tracker gps GPS Chip SIRF3 Chip , vehicle tracking device Battery 3.7V 500mAh Li-ion Battery, Band 850M/900/1800/1900MHZ, car GPS tracker ...
This is useful in mobile applications where a user will want to search for places in the vicinity of their current GPS location; the location and distance parameters can be used in this scenario. The location parameter can be specified without specifying a distance. If distance is not specified...
This invention provides a method for locating a lost object by utilizing a stripped down cell-phone transceiver which is controlled in an on-off periodicity by an independent timer which is always on, and also has a low power GPS module... Susan Leeds Kudo - US 被引量: 0发表: 2011年 ...
Our Mapping & Modeling Team can create a wide variety of customizable maps and models, from a simple GPS-enabled map of your utility locate, to highly-detailed 2D CAD drawings and 3D BIM models, depending on your needs. AS BUILT DRAWINGS Existing drawings don't always show the current ...
In this case, it is necessary to use spread spectrum techniques for transmission, in order to avoid interferences to other wireless systems, such as cell phone networks, GPS, Bluetooth and IEEE802.11. It is worth to mention that by combining these techniques to UWB pulses; it is possible to...
e.g., a Palm Pilot™, registers his identity with a locator service. Further, the data device continually registers its location, e.g., via GPS coordinates or info, to the locator service. When the user requests emergency service, such as by dialing 911 using the data device, the ...
Examples for such technologies are the satellite-based Global Positioning System (GPS), the cell-ID method in mobile phone networks or WLAN-based approaches. These technologies are the enabler of so called Location-based Services (LBS): LBS are services to be used with mobile handheld-computers ...
The configuration device 110 may be an on-board computer accessible from a user interface, a PDA, a cell phone, or a diagnostic tool. In another embodiment, the vehicle monitoring system 400 determines if the vehicle 10 has been stolen or is being operated by an unauthorized operator. For ...
The host controller requires the transmission of such information as the SID number, and the cell number and transmitter coordinates, received by the cellular transceiver from the overhead message stream, and in some cases requires transmission by the driver of the vehicle of information stored in ...