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DTMaps - Wildfire Detection System (WDS)

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Any fire can be stopped when it is small, if it is detected !

An Advanced System Architecture !

WDS - Fire Detection Elements !

WDS - Fire Detection Architecture

WDS - Individual House Application

WDS - Fire Detection Covering A Region

WDS - Features & Benefits

WDS - Frequently Asked Questions

Any fire can be stopped when it is small, if it is detected

Tracking lightning events is a predictive method sometimes employed to determine the possible event of a wildfire but requires the deployment of aircraft into the area to confirm or deny the occurrence of a wildfire event. As a result, wildfires in forests and grasslands often burn unreported for hours and sometimes even days. This delay allows the wildfire to burn out of control, developing into a firestorm that threatens life, property and natural resources. Such large scale wildfires cost hundreds of millions of dollars to fight and extinguish and can destroy massive expanses of forest land.

DTLink WDS is the combination of a device detecting both flame and power line arcing by the ultraviolet light they produce, and the ultra low-power DTLink Sensor Network.

The flame type of ultraviolet is absent in sunlight, so the detector will function just as well by day as it will by night. It has an hemispherical field of view, so does not need to face the flame or arc.

The detector is on guard 24 hours per day.

DTLink Sensor Network is an ultra-low power network system operating under minimal power providing services for multiple years. The complete device (detector + network node) is integrated within an IP66 box, using either batteries or solar power (option).

A network of DTLink WDS sensors distributed throughout a fire district can alert firefighters when a fire starts, so crews can be on scene while the fire is still stoppable. Since the detectors also detect power line arcing, which often ignites wildfires in high winds, it can even alert firefighters to incipient wildfires in these extreme conditions so crews can be standing by when the fire starts. This greatly improves firefighter safety, because otherwise downed power lines can quickly be obscured by smoke. Undetected high voltage turns the firefighter’s primary weapon – water – against him. Infrared wildfire detection systems are totally unable to detect power line arcing, so they can put firefighters at risk when a downed power line starts a fire.

For The First Time A Network Of Fire Detectors

An Advanced System Architecture !

A system architecture that can protect
a single house, a complete town
or a complete forest

In drought or high winds, a one-foot fire can grow to over an acre in just 40 minutes. If firefighters take 25 minutes to arrive at the scene, detection must happen in the first 15 minutes or the fire will quickly become unstoppable. DTLink WDS devices detect flames while they’re still small – and they never sleep.

The combined fire detector capability to detect flames of 20cm within 400 meters and the network possibility to place devices in more than 1000 meters of distance and a network that can handle multiple dozens of nodes, make the DTLink WDS the ideal solution for protecting very large areas of thousands of acres.

DTMaps interface, receives the sensor data and displays the information on either a mobile device or a desktop computer. System administrators will be able to view the fire detectors directly on a geographical map and receive alerts either on the interface or directly on their portable phone as SMS messages.

DTLink WDS devices come in multiple options with additional sensors providing: local temperature, air humidity and barometric pressure, information that can be combined to anticipate dangerous situations.

Undetected high voltage turns the firefighter’s primary weapon – water – against him. Infrared wildfire detection systems are totally unable to detect power line arcing, so they can put firefighters at risk when a downed power line starts a fire.

Technology Used By Berkeley, EPFL,
UCLA, Stanford, Harvard, ETH Zurich

WDS - Fire Detection Elements !

Technology Used By Berkeley, EPFL,
UCLA, Stanford, Harvard, ETH Zurich

DTLink WDS – Fire Detector

Ultra-violet fire detector
Motes network node
Tiny OS
Battery operated (solar powered optional) Minimum 2 years autonomy on batteries
IP 66 Enclosure. Gray. (17cm,12cm, 5cm)
Transmits alerts on fire only + battery voltage

The device DTLink WDS – Fire Detector communicates with the Gateway element and transmits to the DTMaps database, or the one of your choice the sensor data. In case of fire the system can be individually configured to send SMS multiple alert messages. The integration with DTMaps system is optional.

DTLink WDS – Meteo Box

Temperature, Humidity, Light, Barometric pressure
Motes network node
Tiny OS Battery operated (solar powered optional) Minimum 2 years autonomy on batteries
IP 66 Enclosure. Gray. (17cm,12cm, 5cm)
Transmits data gathered from sensors + battery voltage

The device DTLink WDS – Meteo Box communicates with the Gateway element and transmits to the DTMaps database, or the one of your choice the sensors data. The device does not transmit fire detection data, but only meteorological data. The integration with DTMaps system is a requirement.

DTLink WDS – Gateway

Motes network node GSM,GPRS, 3G, EDGE
Tiny OS Continuous (5VDC, 1.5A) (solar powered optional)
IP 66 Enclosure. Gray. (17cm,12cm, 5cm)
Transmits data gathered from sensors

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WDS - Fire Detection Architecture

Every fire detector has been tested to detect 20cm flame in 500m within 180o (Line Of Sight)
A node (fire detector of meteo box) should communicate with either another node or directly with the gateway.The distance should not exceed 1500m.
A node may use another node (hops) to connect to the gateway. The maximum number of hops till a node reaches the gateway should not exceed the 10 nodes (gateway and initial node included).
The segment of nodes controlled by a gateway should not exceed the 50 devices.

An Ultra-Low Power Network Running
On Batteries For Years

WDS - Individual House Application

Fire Detectors : 5 on batteries
Gateways: 1 on solar power
Covered Angle: 360o
Overlapping Areas: 5 Installation: 3 hours
Testing: 1 hours User
Interface: DTMaps + SMS Alert

The gateway is installed on the tv mast and connected to a solar power equipment because of the frequent electricity problems and because the house is not always occupied. Even though 3 fire detectors would be enough, with 5 devices we have a redundant coverage

Fire Detectors : 4 on batteries
Gateways: 1 on solar power
Meteo Box: 1 on batteries
Covered Angle: 360o
Overlapping Areas: 4
Installation: 2 hours
Testing: 1 hours
User Interface: DTMaps + SMS Alert

The gateway is installed on the tv mast and connected to a solar power equipment because of the frequent electricity problems. With 4 fire detectors, they cover the complete area around the houses. A sprinkler system is installed with a fire retardant liquid that will spray the houses in case of danger. The Meteo Box installed provided continuous weather details to the users while they are away from home. The solar power subsystem is not provided by DTLink as it should always be adapted to the local sunlight ratio, geographical position of the installation, battery type used etc.. You can use one of the multiple photovoltaic calculation software to calculate the surface of the solar element and the battery to use. In most cases we recommend the battery operation of the fire detectors and the connection of the gateway device to the permanent power supply with a backup battery, if possible.

WDS - Fire Detection Covering A Region

Here is a deployment sample in the Mediterranean area within a village with abundant vegetation and a large amount of olive trees. In the same area, we have many tourist buildings like: hotels camping areas and individual villas.

We highlighted in red the roads of any type that are available and where electricity poles are available,

Fire Detectors : 80 on batteries
Gateways: 5 on continuous power
Covered Angle: 360o
Overlapping Areas: Multiple
Installation: 1 month
User Interface: DTMaps + SMS Alert

The gateway devices are installed on two high electricity poles in distinct areas of the village so that the can see directly (LoS) a big number of fire detectors. The fire detectors are installed to the roof of public buildings, the roof of private buildings, electricity poles and some of them is especially built areas in the middle of large olive forest areas. The system will alert multiple people in case of fire alert: major, department directors, firemen and municipality police that will immediately certify the alert and distribute the information further.

WDS - Features & Benefits

First network of fire detectors and not single units?
Better area coverage. Quicker Alerts. Integration. Covers equally a single house, a complete town or a complete forest.
Shows fires on Google Maps through the DTMaps interface?
Integrates with modern tools. Does not require specific software.
DTMaps web-based interface runs on both mobile and desktop devices?
The same interface for both the field people and the operation centers.
Integrates exact position of firemen, fire vehicles and all operational staff?
Using the DTMaps Locator GPS application, you can view the exact position on Google Maps of the all the operational staff and vehicles.
Ultra low power network?
Easy to install everywhere. Fire detectors run for years on batteries or solar power. Continuous power supply is not a requirement.
Sees hydrocarbon, hydrogen, ammonia and sulphur fires ?
Detects different fire types for flexible coverage. Covers multiple types of areas.
Equally detects fire during the day and night?
Unattended 24x7 operation with the same efficiency
No mechanical elements?
No risk of material degradation. No maintenance.
Field of View of up to 160 degrees ?
Wide coverage per detector. Less fire detectors per given area.
Explosion-proof, Class I, Division 1 certified ?
Suitable for hazardous locations.
Installs indoor, outdoor up to 2000 m directly from gateway?
Flexible wireless installation.
Supports up to 10 hops (10 x 2000m) from gateway?
Covers very large areas.
Unlimited independent networks?
There is no theoretical or practical limit to the areas that can be covered.
Immune to sunlight and hot body radiation ?
Limits false alarms caused by nearby activities
Runs unattended for years?
Minimizes maintenance tasks
Network integrates Meteo Box and other sensors?
System administrators will get more valuable field data to anticipate dangerous situations.
Online graph of the sensor data?
All sensor data can be displayed using a chart or exported to an Excel format.
Complete historical data for locator GPS objects?
You can get immediately the historical geographical position of every operational staff or fire vehicle.
Continuous report of fire detector good function?
The system reports daily the good functionality of the fire detectors
Immediate SMS alert message?
In case of fire, the system will immediately send and SMS alert message with the fire detector position
Multiple path network?
In case a network node (fire detector) goes down, the system will recalculate the network and continue working without interruption.
DTMaps interface will continuously report battery voltage?
You will know exactly when you will have to maintenance the fire detectors.
DTMaps interface will show fire detectors from country level down to the street level?
Extraordinary interface that reflects the exact position of the fire detector.

WDS - Frequently Asked Questions

Is LoS (Line Of Sight) required for an effective fire detection?
Yes. The LoS will provide a clear fire signature. In non-LoS topologies the distance required to detect a fire will shorten to the half.
How many fire detectors should I install within a specified area?
It is a good practice to ‘view’ an area by at least two different devices.
What is the mechanism that allows you to save energy?
Our network uses the motes principal, a time-synchronization of all devices of the network. In the case of the fire detection system, the network will wake up every 12 hours for about a sec to check elements of the network and send the information to the database. When a fire is detected, the system will wake up and send the information immediately. Like this, if no fire is detected, the system will only wake up twice per day for two seconds.
Do you provide solar power kits?
No. We provide the power consumption characteristics that should be taken in consideration along with the area sunlight ratio in order to get the appropriate solar power devices.
We are using the DTLink SmartCity system. How the DTLink WDS integrates to the Wifi network?
The DTLink WDS Gateway is already designed for such an integration. You should only order the gateway device with an Ethernet interface. You can place the DTLink WDS Gateway wherever there is a client AP. You should only connect the two Ethernet interfaces with a RJ45 patch cable.
We own a resort hotel. Can DTLink WDS protect us against wild fire?
Yes. In this case, you can place the Gateway device at the top of the building (usually on the TV mast) and place fire detectors (3-4) at the periphery of the building.
What is the Locator GPS application and how I can use it in a fire detection scenario?
The Locator GPS is like a fleet management application. In a fire detection scenario, you can have the firemen and the fire vehicles equipped with a special device that will show on DTMapss their exact geographical location.
Do your products come with a warranty?
Yes. Our products come with a 2 years warranty.
What is the risk of a false alarm?
As an added advantage, the DTLink WDS fire detector does not react when exposed to incandescent or fluorescent lighting, heaters or sunlight - so false alarms are considerably reduced.
What is the reaction of the fire detector depending on the fire type?
N-heptane, size: 1’x1’, response: <9sec at 140 ft.
Gasoline, size: 1’x1’, response: <3sec at 120 ft.
Methane, size: 30” plume, response: <4sec at 100 ft.
Do you have any ranges for activities that may create a false alarm?
Sunlight, total immunity
1500W heater, 10 ft
halogen, incandescent light, 3ft
fluorescent light, 10ft
How can we know that the fire detector functions?
Daily, in regular time intervals, the network system will check the good function of the detector and report it to DTMaps interface.
Can the system be used in-house?
Yes. The products specifications will remain the same.
Can fire detection segments be interconnected?
No. The virtual interconnection of the fire detectors will happen within the DTMaps interface where all fire detectors will be displayed with no segment distinction.
What is the maintenance required?
A yearly inspection is highly recommended. You will need to clean the fire detector ‘eye’ and test batteries.

DTMaps.com by DTLink Inc