Reliability power outlet

Watch-DOG

with internal ping monitoring

An electronic “watchdog” with outgoing connection monitoring.

A security system includes not only the Videoblazer itself, but also network equipment at a minimum. Like any complex electronic system, all hardware can occasionally fail or freeze. When you are at home, the solution is simple — press the reboot button and the problem disappears. Remotely, however, this may become impossible because the most important thing is missing: the connection to the site itself.

This configuration includes an independent hardware fault-tolerance module. It operates separately from the Videoblazer and follows its own control algorithm, affecting both the Blazer itself and the surrounding equipment when necessary.

If communication is lost, the equipment can only be restored locally on the equipment side itself. In order for the system to understand that the connection has been lost, Videoblazer includes an external connectivity monitoring function.

You can specify any IP address for monitoring or leave the default value — 8.8.8.8, a well-known public DNS server on the Internet. Videoblazer periodically sends ping requests to this address, and if the connection cannot be established, it automatically reboots the Videoblazer and/or all equipment connected to its relay contacts.

This may be implemented using a regular power extension strip with 220V outlets. However, we recommend a more professional solution — a controlled reboot with a 5-second power interruption.

The reason is that a quick reboot does not always solve the problem, since capacitors may continue holding residual voltage for some time after the power is disconnected. That is why many technical manuals recommend the following procedure: disconnect the power for several seconds and then switch it back on.

The “SL-Reloader” reboot device works exactly this way — it отключает the entire contact group and restores power after 5 seconds. Any equipment with a total load of up to 5 A can be connected to it. Naturally, the primary devices that should be connected are the network components responsible for Internet connectivity.

As a result, when the Internet connection is lost, the reboot system will automatically activate. All other equipment can then be controlled remotely again.

This power outlet system can operate either independently or together with Videoblazer. It includes two relay inputs. Previously, we also recommended adding GSM-channel control.

The power input for the outlet group is designed to be connected through a UPS output, reminding the user that this equipment belongs to the category of critical infrastructure and therefore requires uninterrupted power supply.

In addition, the device contains an internal power-line presence sensor, allowing Videoblazer to detect power outages at the facility and respond to them in a timely manner, as well as notify the owner about the loss of power.

Simply connect it to any of the Videoblazer sensor inputs using a two-wire cable and assign the required response algorithm.

Basic schematic diagram of the external power outlet