3 WISE-4000 User Manual
Chapter 1 Product Overview
1.2.2 Data Storage Function
The internal flash of the WISE module can log up to 10,000 data samples with a time
stamp. The I/O data can be logged periodically, and when the I/O status changes.
Once the memory is full, users can choose to overwrite the old data to ring log or just
stop the log function. When the module is powered-off, data can be kept in the mod-
ule. When restarting, users can decide whether to clear all data or continue logging.
The definition of data in the IoT is not only the status of everything, but also includes
time or location information. With a built-in Real Time Clock (RTC), WISE modules
log data with a time stamp and the MAC address of the WISE module. The internal
RTC can be calibrated by SNTP with time server. Once the module has been pow-
ered-off, the internal time can also be saved using the time backup battery. When
users poll the data from the data logger, the time stamp will always be attached to the
data.
1.2.3 IoT Cloud Function
Local storage data not only can be polled by the user, it can also be pushed to the
cloud automatically. Once the logger reaches the upload criteria, Data Logger will
push the data to public cloud services like Dropbox or Baidu. This data will be saved
on the cloud using a *.csv file extension. Users can synchronize the data on the cloud
using the application program provided by the cloud provider where it can be
accessed from anywhere. With the provided RESTful API, users can configure their
private cloud and push the data onto it. Cloud Logger provides a very flexible solution
for cloud data storage. A WISE module is the only one stop from data acquisition to
the cloud.
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