Data processing apparatus for probe traffic information and data processing system and method for probe traffic information

A data processing system comprising a processor having a CPU and a memory unit and adapted to transmit/receive information from/to a cell phone,

• wherein said memory unit of said data processing system includes a cell phone talking period information database for storing information obtained from the cell phone during talking over said cell phone, a base station position information database for storing position information of respective ones of a plurality of base stations, a sector position information database for storing position information of respective ones of a plurality of sectors defined by dividing a communication area of each of the plural base stations, a road information database for storing road information of roads running through the communication areas of the plural base stations, and
• wherein, in said data processing system, first cell phone information is acquired which is presented from the cell phone at a point where talking over said cell phone is started;
• second cell phone information is acquired which is presented from said cell phone at a point where talking over said cell phone is ended;
• traveling time and traveling distance of said car are calculated on the basis of said first cell phone information and second cell phone information;
• and a traveling speed of said car is calculated from the traveling time and traveling distance of said car to thereby generate traffic information.

A data processing apparatus for probe traffic information comprising a CPU and a memory unit and adapted to transmit/receive information to/from a cell phone,

• wherein said memory unit of said data processing apparatus includes a cell phone non-talking period information database for storing information obtained from the cell phone during non-talking over said cell phone, a cell phone talking period information database for storing information obtained from said cell phone during talking over said cell phone, a base station position information database for storing position information of respective ones of a plurality of base stations, a sector position information database for storing position information of respective ones of a plurality of sectors defined by dividing a communication area of each of the plural base stations, a road information database for storing road information of roads running through the communication areas of the plural base stations and an area information database for storing area information of each sector each communication area of each base station has,
• wherein, in said CPU, the area information of each sector each communication area of each base station has is watched at a constant period and when the area information watched at the constant period changes, the cell phone is determined as traveling and a traveling speed of a car carrying the cell phone is calculated from traveling time and traveling distance of said car on the basis of position data before the area information changes and position data after the area information changes, and
• wherein, in said data processing apparatus, during talking over the cell phone, first cell phone information is acquired which is presented from the cell phone at a point where talking over said cell phone is started;
• second cell phone information is acquired which is presented from said cell phone at a point where talking over said cell phone is ended;
• traveling time and traveling distance of said car are calculated on the basis of the first cell phone information and second cell phone information;
• a traveling speed of said car is calculated from the traveling time and traveling distance of said car;
• and the traveling speed is compared with a predetermined speed stored in said road information database to determine either a jam or a congestion state when the traveling speed is smaller than the predetermined speed beyond either a first or a second predetermined range, or a jam when the traveling speed is smaller than the predetermined speed beyond the first predetermined range and a congestion state when the traveling speed is smaller than the predetermined speed beyond the second predetermined range.

A data processing method for probe traffic information comprising:

• a first step of reading, on the basis of log information of cell phones concerning a specified road, which log information is included in information of cell phone carriers based on talking over the cell phones and recorded and saved in a cell phone trader, traveling time and traveling distance of every cell phone carrier between a point where talking is started and a point where the talking is ended;
• a second step of calculating a traveling speed of a cell phone carrier from the traveling time and traveling distance of said cell phone carrier read out in the first step;
• a third step of putting aside and choosing a value of traveling speed remarkably slower than the lowest speed of a car running on the specified road from the traveling speed of said cell phone carrier calculated in the second step;
• and
• a fourth step of comparing the traveling speed of said cell phone carrier chosen in the third step with a preset speed for the specified road to determine a jam or congestion state when the traveling speed is slower than the preset speed.

A data processing method for traffic information adapted to process transmission/reception of information to/from a cell phone in a processing apparatus having a CPU and a memory unit, comprising:

• storing information of respective ones of a plurality of sectors defined by dividing a communication area of respective ones of a plurality of base stations in a sector position information database;
• storing road information of roads running through the communication areas of the plural base stations in a road information database;
• calculating traveling time and traveling distance of a moving body carrying the cell phone from position data before the information changes and position data after the information changes by consulting the information stored in said sector position information database and road information database;
• and
• generating traffic information from the calculated information.