To preserve a record of repair work, etc., together with recording place and recording time by detecting the positional information and time information on a vehicle, recording external information and storing the information in a portable storage medium after an arithmetic processing is performed for the information.
When a working vehicle is left for a repair place, the latitude/longitude information and time information on the location obtained from a GPS signal for this period is recorded in the storage medium 5 set from an arithmetic processor 3 to a storage device 6. At the same time, also the running distance information on the working vehicle detected by a running distance detector 2 is recorded in the storage medium 5. When the working vehicle arrives at the place under repair, the road status before the repair is photographed by a camera 4a, the image information is inputted in the arithmetic processor 3, and the latitude/longitude information on a vehicle location and the time information are coupled and the coupled information is recorded in the storage medium 5. Next, the status of the repaired road is photographed by the camera 4a after the repair work is completed, the image information is coupled with the latitude/longitude information on the vehicle location and the time information and the coupled information is stored in the storage medium 5.
KUBOI YOSHIYUKI
YAMAMOTO KOJI
OKA HIDEKI
MIYAI KOZO
OKUNO KENJI
