Sep 14

How to Choose an Online Backup Facility

Posted in Online Backup Facility

A lot of companies offer online backup services and while this is a good development for users, it also poses significant risks. There have been reports of online backup services losing clients’ data and even, the mighty companies do fall. In 2009, Carbonite lost the data of over 7500 of its clients and although this was brought under control, it underscores the need for careful selection of a service provider. Some of the points to consider before making a selection include the following.

Verify their Security Measures

• Never use a provider that doesn’t offer AES 256-bit encryption and an SSL (Secure Socket Layer) transmission channel.
• Never use a provider that doesn’t offer CDP (Continuous Data Protection). CDP ensures that your data is backed up as new changes are made.
• Never use a provider with an unproven track record of keeping customer data intact.
• Never use a provider that cannot offer several high security data storage centers in different geographical locations.
• It’s better to use a provider that offers access restriction to pre-selected IP addresses. This makes it impossible for unauthorized persons to access your data from any other location.

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Sep 12

DLN-series Adapters Interfaces and Modules Overview: ADC.

Posted in Adapters Interfaces

Diolan DLN-series adapters have very impressive functionality. By using DLN-4M adapter you can use PC-I2C, USB-SPI and USB-GPIO interfaces. Also there are pulse counter, PWM and ADC module. DLN-4S has the same capabilities as DLN-4M but it also has slave capabilities of USB-I2C and USB-SPI interfaces.

There are available large amount of demo examples which show all the possibilities of Diolan DLN-series adapters and were created to help your software and hardware development with latest Diolan products.

Lets look on USB-ADC (analog to digital convertor) module. This module has many applications. You can acquire data from wide range of analog sensors and save it at PC for further processing. Analog to digital conversion is well utilized for external analog signal reading such as current, voltage, temperature, distance, pressure, or even color information.

To begin usage of DLN USB-ADC module you need simply enable ADC channel and its port by using DlnAdcChannelEnable() and DlnAdcEnable() functions.

You can acquire ADC values or value by DlnAdcGetAllValues() and DlnAdcGetValue() functions.

To set resolution simply call DlnAdcSetResolution() function to get current resolution simply call DlnAdcGetResolution() function.

There are 5 event types and event periods you can set for the ADC module. Simly call DlnAdcChannelSetCfg() function with proper parameters and DlnAdcChannelGetCfg() to take current values back.

You can share all this functions from the dln.dll library or by using static qt libdln.a and dln.lib libraries. Try to run “Adc Gui” application for testing installed by DLN setup package.

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