| 摘要 |
To provide a system for grasping a working state of engaged workers via a space-saving low-cost communication network even when there is no space for placing a dedicated terminal device used for a network time recorder or it is impossible to employ the dedicated terminal device because of the cost. A working information generation device ( 10 ) generates and outputs working information including generation device information for each predetermined time with different contents. Next, the working information outputted is acquired by a working information acquisition device ( 20 ). The acquisition device information is added to the working information so as to obtain working information, which is sent to a predetermined working information collection device ( 30 ). The working information collection device ( 30 ) receives the working information which has been sent, identifies a working destination in the received working information, and identifies a worker who has worked in the working destination from the acquisition device information in the working information. After this, the identified working destination and the worker are recorded as working information in the working information collection device ( 30 ). Furthermore, the working information is sent to a service rating management device ( 60 ).
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