Transporting residue of vehicle position data via wireless network
First Claim
1. A method for transporting residue of vehicle position data via a wireless network, comprising the steps of:
- receiving, by a processor in a vehicle-mounted terminal in a vehicle, data for updating residue encoding schema from a monitor server via the wireless network;
calculating, by the processor, a probability of occurrence of a residue of the vehicle in which the vehicle-mounted terminal is located based on a first value and a second value received from the monitor server that characterizes a normal residue distribution of position data of all vehicles complying with a constraint condition;
constructing, by the processor, a residue encoding schema based on the probability of occurrence of the residue, thereby producing a constructed residue encoding schema;
storing, by the processor, the constructed residue encoding schema such that the constructed residue encoding schema will become a current residue encoding schema; and
transmitting, by the processor, codes from the vehicle-mounted terminal in the vehicle to the monitor server using the current residue encoding schema thereby reducing a total length of the codes transmitted via the wireless network;
wherein;
the constructed residue encoding schema is constructed such that each residue of the constructed residue encoding schema corresponds to one code; and
the constructed residue encoding schema is constructed such that a residue having a relatively high probability of occurrence corresponds to a code of relatively short length.
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Abstract
The invention relates to compressed data transmission in wireless data communication. Disclosed are methods and apparatuses for transporting residue of vehicle position data via a wireless network. A disclosed method for transporting residue of vehicle position data via a wireless network, includes the steps of: receiving data for updating residue encoding schema from a monitoring server; constructing a residue encoding schema based on the data, thereby producing a constructed residue encoding schema; and storing the constructed residue encoding schema such that the constructed residue encoding schema will become the current residue encoding schema; where: the constructed residue encoding schema is constructed such that each residue of the constructed residue encoding schema corresponds to a code; and the constructed residue encoding schema is constructed such that a residue having a relatively high probability of occurrence corresponds to a code of relatively short length.
13 Citations
4 Claims
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1. A method for transporting residue of vehicle position data via a wireless network, comprising the steps of:
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receiving, by a processor in a vehicle-mounted terminal in a vehicle, data for updating residue encoding schema from a monitor server via the wireless network; calculating, by the processor, a probability of occurrence of a residue of the vehicle in which the vehicle-mounted terminal is located based on a first value and a second value received from the monitor server that characterizes a normal residue distribution of position data of all vehicles complying with a constraint condition; constructing, by the processor, a residue encoding schema based on the probability of occurrence of the residue, thereby producing a constructed residue encoding schema; storing, by the processor, the constructed residue encoding schema such that the constructed residue encoding schema will become a current residue encoding schema; and transmitting, by the processor, codes from the vehicle-mounted terminal in the vehicle to the monitor server using the current residue encoding schema thereby reducing a total length of the codes transmitted via the wireless network; wherein; the constructed residue encoding schema is constructed such that each residue of the constructed residue encoding schema corresponds to one code; and the constructed residue encoding schema is constructed such that a residue having a relatively high probability of occurrence corresponds to a code of relatively short length. - View Dependent Claims (2, 3, 4)
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Specification