Abstract:
The positioning device includes: a GPS processing unit configured to receive a signal from a GPS satellite and measure a position where the positioning device is located; a data storage unit configured to register a planned positioning point where a position is measured; and a GPS control unit configured to control timing to start up the GPS processing unit such that the GPS processing unit be ready in time for measurement at the registered planned positioning point.
Abstract:
A control device, including: a first processor; a second processor which has a higher performance than the first processor; and a storage in which data is stored so as to be readable and writable by the second processor, wherein a part of the storage is usable as a common storage area which is readable and writable by the first processor and the second processor, in reading operation, the second processor reads first data from out of the common storage area in the storage and writes the first data to the common storage area, and the first processor reads the first data from the common storage area, and in writing operation, the first processor writes second data to the common storage area, and the second processor stores the second data out of the common storage area in the storage.
Abstract:
An electronic device includes a GPS unit, a GPS information acquisition unit, a sensor information acquisition unit, and a reception condition determination unit. The GPS unit receives a radio wave from at least one of a plurality of positioning satellites. The GPS information acquisition unit acquires ephemeris information by the GPS unit and acquires satellite arrangement information of each of the plurality of positioning satellites acquiring the ephemeris information. The sensor information acquisition unit acquires geographical condition information of a current location at which the electronic device is present. The reception condition determination unit identifies the number of positioning satellites that the receiving unit can capture at the current location among the plurality of positioning satellites acquiring the ephemeris information based on the geographical condition information of the current location and the satellite arrangement information.
Abstract:
An electronic device includes a GPS unit, a GPS information acquisition unit, a sensor information acquisition unit, and a reception condition determination unit. The GPS unit receives a radio wave from at least one of a plurality of positioning satellites. The GPS information acquisition unit acquires ephemeris information by the GPS unit and acquires satellite arrangement information of each of the plurality of positioning satellites acquiring the ephemeris information. The sensor information acquisition unit acquires geographical condition information of a current location at which the electronic device is present. The reception condition determination unit identifies the number of positioning satellites that the receiving unit can capture at the current location among the plurality of positioning satellites acquiring the ephemeris information based on the geographical condition information of the current location and the satellite arrangement information.
Abstract:
A magnetic field measuring apparatus includes a first processor, a second processor, a motion sensor and a magnetic field sensor. The second processor has higher processing capability than the first processor. The first processor makes the second processor perform certain processing. When it is determined that the state of motion measured by the motion sensor is at a predetermined level or more, the second processor performs a magnetic field correction setting operation as one of the certain processing. The magnetic field correction setting operation involves retrieving measurement values of magnetic field from the magnetic field sensor which are measured at different postures according to a change of the state of motion, and determining an offset correction value for the geomagnetic field based on the measurement values.
Abstract:
A present invention relates to a positioning processing apparatus including: an orbit information receiving unit that receives Ephemeris relating to an orbit of a GPS satellite from the GPS satellite; a predicted orbit information receiving unit that receives a predicted value of the Ephemeris via a network from a server in which the Ephemeris is accumulated in advance; a power feeding unit that performs control relating to electric power supply; a first determination unit that determines a state of electric power supply; a selection unit that selects the orbit information receiving unit or the predicted orbit information receiving unit based on the state of electric power supply determined; and a positioning unit that performs positioning based on the Ephemeris or a predicted value of the Ephemeris received by the orbit information receiving unit or the predicted orbit information receiving unit selected by the selection unit.
Abstract:
Altitude detection by an electronic device includes: obtaining altitude information at a location of the electronic device by satellite positioning; obtaining altitude information at said location on the basis of atmospheric pressure data detected at said location; obtaining error in the satellite positioning; and, on the basis of the error obtained, causing the altitude information obtained by the satellite positioning and the altitude information obtained on the basis of the detected atmospheric pressure data to be selectively output to a user or a component of the electronic device.
Abstract:
A display apparatus includes a first processor, a second processor and a display. The second processor has higher processing capability than the first processor. The display performs a display operation based on a control of the first processor. The second processor is intermittently activated to generate data relating to a display image to be rendered on the display in response to a predetermined command sent from the first processor. The first processor reads the data relating to the display image generated by the second processor and renders the display image of the data on the display.
Abstract:
An electronic device includes a GPS unit, a GPS information acquisition unit, a sensor information acquisition unit, and a reception condition determination unit. The GPS unit receives a radio wave from at least one of a plurality of positioning satellites. The GPS information acquisition unit acquires ephemeris information by the GPS unit and acquires satellite arrangement information of each of the plurality of positioning satellites acquiring the ephemeris information. The sensor information acquisition unit acquires geographical condition information of a current location at which the electronic device is present. The reception condition determination unit identifies the number of positioning satellites that the receiving unit can capture at the current location among the plurality of positioning satellites acquiring the ephemeris information based on the geographical condition information of the current location and the satellite arrangement information.
Abstract:
An information acquisition device includes: a positioning unit that measures a current position and acquires positional information thereof; an information acquisition unit that acquires information; a storage unit that stores information acquired by the information acquisition unit and positional information acquired by the positioning unit; and a control unit that causes the positioning unit to perform positioning, while the information acquisition unit is activated, at an interval shorter than while the information acquisition unit is stopped, and causes positional information acquired while the information acquisition unit is activated, outside a time period determined in advance with a time in which acquisition of information was performed by the information acquisition unit as a reference point, among positional information acquired in the positioning unit, to be thinned and stored in the storage unit.