摘要:
A method and system of determining the position of a radio signal transmitter (50, 51) is described. The method comprises determining the type of radio signal being transmitted from the radio signal transmitter (50, 51) by analysing the radio signal for radio signal characteristics and correlating different sets of information in a way dependent on the determined radio signal type in order to determine the position of the radio signal transmitter. Each set of information corresponds to a different relative position of at least one receiver (1, 2, 3) to the transmitter (50, 51). Each set of information comprises radio signal data derived from radio signals received by the at least one receiver (1, 2, 3) from the transmitter (50, 51) at each respective relative position and positioning data containing information about the position of the at least one receiver (1,2, 3) at each respective relative position.
摘要:
A positioning device for use with a navigation device, the positioning device comprising input means arranged to receive data signals from a source other than a navigation system; conversion means arranged to convert the received data signals into positional data; and output means arranged to output the positional data for use by the navigation device. The output means outputs the positional data in a communications protocol format, the navigation device is arranged to process the positional data in the communications protocol format.
摘要:
A positioning device for use with a navigation device, the positioning device including an input arranged to receive data signals from a source other than a navigation system; a converter arranged to convert the received data signals into positional data; and an output arranged to output the positional data for use by the navigation device. The output outputs the positional data in a communications protocol format, the navigation device being arranged to process the positional data in the communications protocol format.
摘要:
A positioning device for use with a navigation device, the positioning device including an input arranged to receive data signals from a source other than a navigation system; a converter arranged to convert the received data signals into positional data; and an output arranged to output the positional data for use by the navigation device. The output outputs the positional data in a communications protocol format, the navigation device being arranged to process the positional data in the communications protocol format.
摘要:
A positioning device for use with a navigation device, the positioning device including an input arranged to receive data signals from a source other than a navigation system; a converter arranged to convert the received data signals into positional data; and an output arranged to output the positional data for use by the navigation device. The output outputs the positional data in a communications protocol format, the navigation device being arranged to process the positional data in the communications protocol format.