| 摘要 |
PROBLEM TO BE SOLVED: To monitor the remaining capacity of a battery with high accuracy, and notify the user of it, manage the replacement timing of a battery, rescue from battery exhaustion, or the like in a centralized manner, and prevent collision of electric wheelchairs, electric carts, electric forklifts, or the like. SOLUTION: Various secondary batteries that can be repeatedly charged and discharged are adopted as a power supply. A configuration on the user side 200 is capable of notifying the user of the state of charging and discharging of a secondary battery in real-time. A service provider 100 tracks the user by GPS 16. Even when the battery goes dead in a remote location, so that it is possible to rush to the location to replace the battery with a charged one or supplementarily charge the battery. In addition, collision of the electric wheelchair, electric cart, electric forklift, or the like can be prevented by monitoring positional information from the GPS 16. COPYRIGHT: (C)2011,JPO&INPIT |
