| 摘要 |
A data transmitting apparatus includes a sensor. When an alarm is generated from the sensor, a post-alarm recording is started, and a plurality of still image files are written to an alarm storage area of an SDRAM by a memory control circuit. The still image files within the alarm storage area are transmitted to an image accumulating server through an NIC during a period from occurrence of the alarm to becoming full of the alarm storage area. Furthermore, still image files created in a normal recording after the post-alarm recording are intermittently transmitted to the image accumulating server at an arbitrary file transmission cycle. The still image files which have not been transmitted yet out of the still image files in the alarm storage area are transmitted to the image accumulating server at intervals of the file transmission operations in the normal recording mode.
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