Netbell™ Bell System, A Web-based Timed Alert System Via Internet of Things Technology

A compact, self-contained system provides an embedded, webpage scheduling software for schools, factories, warehouses to build a fully automated timed alert system

Linortek Netbell™ is an ease-of-use network break time alarm system which has been custom developed for schools, factories and other organizations to build a fully automated web-based timed alert system for signaling shift changes, general alarms, and breaks. The Netbell™ is built on Linortek’s existing TCP/IP web-based product platforms with specially designed software that provides up to 500 bell schedules or events. The built-in web interface provides quick access to setup and manage the devices with no additional software or designated computer required. For those wanting to forego networking the Netbell™, it also has the ability to function as a stand-alone device. By connecting the unit to a PC, you can program or upload the bell schedules, then disconnect from the PC, and it will function as scheduled. Whether stand-alone or networked, users can easily import/export their existing bell schedules using a simple text format. Although it is typically used to ring bells or buzzers, Beta customers have used the Netbell™ system to control other timed events.

When looking to upgrade or replace an existing school & factory break bell system, we have Netbell-K and Netbell-KL  self-contained, all-in-one network break bell systems for minimum efforts to setup an automatic bell system. If you don’t mind doing some wiring work, we offer IP – POE solutions for your consideration. Our Netbell-2-1BEL and Netbell-2-2BEL kits can help you build a network break bell system at an affordable price. Now it is easy for schools, factories to have a fully automated web-based timed alert system for signaling shift changes, general alarm breaks and any other timed signal applications.

Our Netbell product comes with a built-in real time clock with NTP automatic Internet time setting and gets its time from a standard internet NTP time server. It looks for time every 10 minutes from NTP server by default (users changeable), which maintains the time between requests with a Real Time Clock (RTC) within the main CPU. There is also a back-up RTC with battery power to maintain time during power interruptions or if not connected to the internet.

For those who wish to forego networking the Netbell, it is also able to function as a stand-alone device. Connecting the unit to a PC, upload the bell schedules, then remove, and it will function as scheduled. Whether stand-alone or networked, users can easily import/export their existing bell schedules using a simple text format.

If you are looking for a web-based all-in-one buzzer system of high ambient noise levels (100dBa @10′ ) , you can check Netbell-KB Buzzer System.

To control up to 8 existing bells , buzzers, tone generators or other timed equipment(12V/24V, 5A), you can check Netbell-8.

To control up to 4 existing bells , buzzers, tone generators or other timed equipment (12V-48V, 10A), you can check Netbell-4.

To control up to 2 existing bells , buzzers, tone generators or other timed equipment (110V, 10A), you can check Netbell-2.

Netbell Break Bell System Brochure D (756.4 KiB, 785 downloads)
Netbell Bell Controller Specificatios (159.1 KiB, 342 downloads)

SCHOOL PA SYSTEMS

The Netbell™ product can be used with a PA system as long as you use a tone generator or there is a tone generator built into the current system and it has a way to connect the Netbell™ to activated it. The relays on the Netbell™ product can be setup to actually activate different tones on a tone generator. If you were looking to have multiple tones then you would use the additional relays. For example, a Netbell™-2 can be used to activate two tones, Netbell™-4 for 4 tones, etc. Wiring each one of the relays to a different tone. The relays just act as a dry contact.

For anyone who has separate areas or multiple buildings where running additional wiring is not an option, but the locations are connected by a network, you can use the remote function to build a networked bell system without the need of hard-wiring to a central control station, to ring multiple bells or horns on multiple locations from one simple web interface.