A traditional fire alarm system sends an alarm to a central control system when it detects fire. An alarm sounds, but building occupants are in the dark about the fire's location. The occupants don't have the necessary information to plan the best escape route and make crucial, potentially life-saving, decisions. ICP DAS USA's WISE modules links up system components, creating an intelligent fire alarm system that enables people to make better decisions in an emergency.

Introduction:

Every home has fire alarms, and all public buildings have fire alarm systems. They're one of many systems and components running in the background of our lives. But, like everything else, over the last two decades, fire alarm systems can benefit from new technology. We can make them more reliable and give them more function, and in turn make people safer.

But what does a traditional fire alarm system look like? A traditional fire alarm system sends an alarm to a central control system when it detects fire. An alarm sounds, but building occupants are in the dark about the fire's location. The occupants don't have the necessary information to plan the best escape route and make crucial, potentially life-saving, decisions. ICP DAS USA's WISE modules links up system components, creating an intelligent fire alarm system that enables people to make better decisions in an emergency.


System Description:

In this example, there is a linked fire alarm system in a building, divided into 6 zones, labeled A-F. Each zone has a WISE-7152 module connected to temperature, smoke sensors, or other fire detection devices. The DO channels of each WISE-7152 module will be connected to 6 warning lights— one per zone.

In this example, there is a fire in zone F, so the WISE module alerts the other modules with its P2P function. Upon receiving the message, the WISE module in each zone illuminates the warning light for zone F. With this clear and immediate warning, building personnel can make an informed decision about how to evacuate the building and to handle the emergency. After the problem in zone F is resolved, the alarm and all warning lights can be turned off with a switch.

In addition to the six WISE-7152 modules distributed throughout the facility, an additional WISE-7152 monitors the network, acting as a coordinator. Through the P2P function, this coordinator will communicate with the other six modules, and uses light indicators to show their statuses. This way an operator can quickly verify the network status of each module and fix a problem as soon as it arises.

Device Description:

WISE-7152 module communicates over Modbus TCP, making integration with SCADA a snap. It features 8 channels of isolated open collector output and 8 channels of isolated wet contact digital inputs. Each output channel supports 650mA current driving +10 ~ 40 VDC and each digital input channel supports counter input.


WISE-7152 follows an IEEE 802.3af-compliant PoE specification. Using Power over Ethernet provides greater flexibility and higher efficiency, which simplifies systems design, saves space, reduces cabling, and eliminates the need for dedicated electrical outlets. (although WISE-7152 is still fully functional using auxiliary power sources like AC adapters or battery, etc.

Benefits:

Users can implement logic functions without programming, All ICP DAS USA WISE-modules use a web server to upload IF-THEN-ELSE logic rules through a web browser. WISE-7152 is easy to use, reducing the time and labor necessary to build an alarm system.

Using Ethernet as the communication network for the entire system, and with the PoE feature, reduces wiring costs.

With advanced P2P function, multiple WISE modules can share information via network in real-time and response immediately.

The fire alarm system operates independently or as part of a SCADA system. It uses simple indicators to show network status, and maintenance is easy to perform.

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