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Intrusion Devices – New and Emerging Technology in Worker Safety

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1 Intrusion Devices – New and Emerging Technology in Worker Safety
Presented by: Ken Kochevar FHWA Safety/ITS Specialist (916) Good morning! My name is Ken Kochevar. I am the Federal Highway Administration Safety/Intelligent Transportation System Specialist from the California Division office. I will be talking to you today about Intrusion Devices – New and Emerging Technology in Worker Safety.

2 If They Only Knew It Was Coming!
This is a situation that we encounter too often. I’m not hear today to tell you how we can change the attitudes or mindset of these workers, but what instruments we have available to help give us a warning. Intrusion devices do not take the place of a physical barrier, but they will give the worker or inspector a number of seconds to clear the area should a vehicle enter the work zone.

3 Intrusion Devices – New and Emerging Technology in Worker Safety
Introduction and Background Description of Products Reasons for Use Benefits of Use Applicable Uses Specifications First off, I would like to give you a little background on why I feel this is a growing area of concern and some factors that I believe have lead to an increase in injuries and fatalities. Then I would like to give a description of each product which will include among other things: Reasons for Use Benefits of Use Applicable Uses and Specifications.

4 U.S. and California Statistics 1998 – 2001 Work Zones
U.S. Fatalities/Injuries CA Fatalities/Injuries 1998: 772/39, : 68/1218 1999: 872/51, : 112/1235 2000: 1093/52, : 121/1389 2001: 1026/53, : 110/1436 All the data you see is from Fatality Analysis Reporting Systems (FARS) and the National Workzone Clearing House. The data covers four years and gives you an indication as to the increase in injuries and fatalities from the years 1998 to You can see the fatalities rose from 772 in 1998 to 1026 in 2001, an increase of 33% with a high of 1093 in Injuries also increased at a rate of 35% in the same time period. (U.S. injuries is an estimate for I’m told the figures look to be very similar to 2000.) Looking at the injuries and fatalities in California for the same time period shows even worse results. From 1998 to 2001 there were 42 more fatalities which equates to a 62 percent increase in fatalities with a high of 121 fatalities in There was also an 18 percent increase in injuries. (California injuries are only injuries that have occurred to Caltrans Maintenance Program personnel that work primarily in work zones.) These numbers are not rates, but just a way of giving us some idea of which direction we are headed.

5 Reasons for Fatality/Injury Increases ???
Increase of VMT Lack of Consistency Distracted Driver With my 10 years of experience in the work zone area here are some things that I believe have contributed to the increase we see in injuries and fatalities. There has been a steady increase in Vehicle Miles Traveled (VMT) over the years. In 1998 there were 2,628,198,000 miles traveled verses 2,778,000,000 in This is about a 2% increase per year. The next factor deals with consistency. We constantly preach the importance of consistency throughout the work zone as well as from one work zone to the next. We the human mind having to process decisions in a mile of roadway, inconsistent messages are the last thing we need to worry about. The ‘Distracted Driver’ is another increasing alarming factor. People can and do things they shouldn’t do in a vehicle. One of the growing concerns I have is the use of cell phones – another full day of discussions. Finally, I believe the increased amount of night time work in and of itself has lead to the increase of injuries and fatalities. In California alone, 60% of work is done at night time to ease traffic congestion. Now, not all injuries and fatalities are workers on foot, but these are the people that have the least chance of surviving if involved in a crash. State & Federal Agencies are actively seeking solutions to this problem and intrusion devices are one such solution. Increase in Nightwork

The first intrusion device I would like to cover is the Safety Line SL-D12 work-zone intrusion alarm.

The purpose of the Safety Line™ is to give workers the earliest possible warning that a vehicle has entered a "safety zone" such as a taper, that is closed off by cones, drums, or other channelizing devices (TCD).

The Safety Line™ consists of a Transmitter and Receiver. The Transmitter is placed at the start of a taper just inside of the channelizing devices. The receiver can be placed up to 1000 feet away, closest to the workers. The transmitter projects a dual Inferred beam to the receiver. Should a vehicle intrudes into the buffer area, the dual transmitted beams would be obstructed thus causing the receiver to activate the 147 db air horn, alerting the workers. Multiple units can be “linked” together to protect a larger area.

The Safety Line™ is extremely easy to use. It is rugged, lightweight, portable and completely self contained. It can be aligned in less than a minute using the alignment LED’s.

Here’s a close-up of the transmitter and receiver. The transmitter has the solar charger option and the receiver has the solar charger and strobe light option. Switches are recessed to prevent accidental activation. Battery access doors are at the bottom with a detailed set of instructions on the inside. TRANSMITTER RECEIVER

Cost $4,000/pr. Range Feet Power Supply Volt DC Battery Type Sealed Gel Cell (3 day life) Operating Temperature to +65° C / -40 to +140°F Siren Level dB Air Horn at 30 feet Infrared Source Pulsed infrared beam with background noise suppression Weight lbs each The cost per pair of the safety line SL-D12 units is $4,000. The range is up to 100 feet. The power supply is 12 Volt DC. The battery type is sealed gel cell with a 3 day life. There is an option to add solar panels to extend battery life another day or two. Recharging of batteries is between 5 and 6 hours. The operating temperature range is –40 to +65 degrees C and -40 to +140 degrees F. The siren level is 147+ dB at 30 feet. The infrared source is pulsed infrared beam with background noise suppression. The weight is 21 lbs. each.

Strobe Light Strobe activates when unit is triggered. Solar Charging System Transmitter and Receiver equipped with Solar Panels. Remote Siren Receiver equipped with a wired siren that can be placed closet to workers. Multi Link Used to daisy chain several units together to protect longer distances. Base Weights Recycled Rubber bases add weight to prevent vibrating or blowing out of alignment. Some options include: Strobe light which activates when unit is triggered. Solar charging system for both the transmitter and receiver. Remote siren that can be placed closet to workers. Multi link feature used to daisy chain several units together to protect longer distances. Base weights made out of recycled rubber to add weight to prevent vibrating or blowing out of alignment. Base weights are an additional 10 lbs each.

Low impact rating of 5 mph. Clasified as Category I device under NCHRP350. Quick and easy setup. Length of coverage. The Safety Line Work Zone Intrusion Alarm is molded from UV stable ABS plastic which has an impact rating of 5 MPH. Should a vehicle strike the unit, it will crumble into small pieces and not become a projectile. Unlike other systems, setup can be accomplished in less than 15 minutes by one person. There are no road tubes to roll out and stake to the roadway. With pneumatic tube units, there is substantial maintenance involved in keeping the unit operational after repeated intrusions. The unit can cover up to 1000 feet and be extended with additional units.

14 Road-Tech Safety Services, Inc.
SAFETY LINE SL-D12 Road-Tech Safety Services, Inc. Contact us at: OR Road-Tech Safety Services, Inc. P.O. Box 2286 Elk Grove, CA (530) Joe Jeffrey

15 ‘Dual Alert™’ Work Zone Intrusion Alarm
The SonoBlaster!® ‘Dual Alert™’ Work Zone Intrusion Alarm The next intrusion device I would like to cover is the SonoBlaster by Paedia. The SonoBlaster!® Dual Alert™ Work Zone Intrusion Alarm is an impact activated safety alarm that warns both roadway workers and errant vehicle drivers at the same time to prevent crashes and injuries in our nation’s highway work zones. The unique features of the CO2 powered SonoBlaster have created a very positive response to the device’s potential for preventing work zone crashes, injuries and deaths on our nation’s roadways. The SonoBlaster mounts on standard work zone barricades such as traffic cones, drums, A-frames, delineators and other types of barriers. Upon impact by an errant vehicle, the SonoBlaster’s built in CO2 powered horn blasts at over 125 dB to signal workers that their protective zone has been violated allowing them critical reaction time to move out of harm’s way.

16 The SonoBlaster!® Solution
A New Concept in Work Zone Intrusion Alarms Alerts BOTH Workers and Drivers Pinpoints the Source of Oncoming Danger Provides Multiple Warnings Uses No Electrical Power As Easy to Deploy as Setting a Traffic Cone Light Weight, Economical, Long Life Units Paedia’s unique SonoBlaster!® Work Zone Intrusion Alarm has established several new ‘Firsts’ in Work Zone Safety Alarms. The SonoBlaster: Notifies Both Workers and Drivers – The ability of the SonoBlaster to alert both errant vehicle drivers and highway workers at the same time creates a new level of protection for preventing crashes and injuries in a wide variety of work zones Identifies the Source of Danger – The source of the alarm sound is always the source of danger. Intrusion alarms that place audible receiver alarms in the work zone, which may be behind some workers, can direct worker’s attention the wrong direction. With the SonoBlaster, the source of the alarm sound, which moves as an errant vehicle hits successive cones, moves along with the danger. The source of the SonoBlaster alarm sound pinpoints the source of danger allowing proper response by workers who find themselves in harms way. Provides Multiple Warnings – Each SonoBlaster cone struck by an errant vehicle sounds an independent 125+ dB alarm providing a continuous warning for both workers and drivers. Requires No Electrical Power – Powered by safe, reliable CO2 cartridges, the SonoBlaster has an ‘infinite’ shelf life & won’t ‘go-dead’ or loose power while waiting to do its job.

17 How the SonoBlaster!® Works
SonoBlaster Alarm Units Mount to Individual Traffic Cones Upon Impact, Units ‘Sound-Off’ at Over 125 dB for 15 Seconds Each Unit Operates Independently Powered by Safe, Reliable CO2 Cartridges SonoBlaster!® ‘Dual Alert™’ Work Zone Intrusion Alarm Product Description The SonoBlaster Intrusion Alarm is a portable, multi-use safety alarm designed to be attached to cones, drums or other barricades to provide protection for personnel in work zones. It’s a lightweight, economical unit that is activated by impact or tilt and is insensitive to road vibration. When impacted by an errant vehicle, the SonoBlaster provides a very loud 125+ dB alarm sound for 15 seconds. Powered by safe CO2 cartridges that have an extremely long shelf life, the self-contained unit is easy to operate and does not rely on batteries for operation. The SonoBlaster has a distinctive sound, not normally heard in a work zone, to attract maximum alarm attention.

18 The SonoBlaster!®‘Dual Alert™’
Notifies Workers: Provides advance warning to workers allowing them the opportunity to move out of harm’s way. The alarm sound pinpoints the source of danger. Notifies Drivers: Each SonoBlaster cone sounds a 125+ dB alarm. Alerts drowsing or distracted drivers. Drivers can respond by braking or steering out of the work zone – or both. Modern cars and SUV’s can stop in 120 to 150 feet. The SonoBlaster provides a ‘Dual Alert™’ Approach to Work Zone Protection: The SonoBlaster Alerts Workers: SonoBlaster cones placed within 100 yards of a work zone can provide workers 3 to 5 seconds warning time to take action. A simple orientation trains workers to respond to the SonoBlaster’s distinct warning signal. The SonoBlaster Alerts Errant Vehicle Drivers. Drivers have tremendous resources at their disposal to correct the path of an errant vehicle: brakes and steering. Upon hearing the SonoBlaster’s alarm, the driver can instantly take one or more of the following evasive actions: Drivers can steer back onto the roadway – Often only a small steering correction will re-direct an errant vehicle out of the ‘Cone Zone’ and back onto the roadway. Drivers can apply braking – Modern vehicles with ABS brakes are capable of short stopping distances while continuing to steer away from danger. Even heavy SUV’s are capable of very short stopping distances. Typical 60 mph vehicle stopping distances range from 120 to 150 feet. (40-50 yds.) Simultaneously alerting both drivers & workers greatly increases the probability of preventing injuries.

19 New Technology The SonoBlaster!® overcomes
objections found in prior intrusion alarms: Needs no electrical power to require maintenance, recharging or ‘go dead’. Critical unit alignment not required as with beam or other type devices. No receiver unit required – each unit operates independently. SonoBlaster holds multiple U. S. Patents Aware of the failure of prior attempts at providing a useful and reliable work zone intrusion alarm, SonoBlaster utilized retired Caltrans managers as consultants to help refine their alarm design, including one manager who himself was a victim of a work zone crash that killed his friend and hospitalized him for almost a year. One of SonoBlaster’s major goals was to develop a solution that would readily fit into the user’s daily work pattern. Making a second pass to add intrusion alarms to the cone line needed to be avoided, especially if it involved walking out on the roadway…. Simple operation without unnecessary false alarms was another criteria stressed by the consultants and a top SonoBlaster goal. The result: A simple, stable intrusion alarm that can be easily set up and removed from any work site...and deploys easily from Cone Trucks –

20 Preparing & Cocking the Unit
Simple Unit Setup Steps: Push the cocking rod into the end of unit, cocking the unit. Twist-on the CO2 cartridge in the cartridge holder. Visual Status Indication View the status indicator through the clear window The SonoBlaster Unit is Simple to Setup: The SonoBlaster is cocked using a small 4” long cocking rod. It is small enough to fit in a pocket and has a lanyard and ring to prevent loss or it can be attached to the SonoBlaster. 1. Pushing the small rod into end of SonoBlaster cocks the unit. 2. Twisting on the CO2 cartridge in its cartridge holder completes the job. Confirmation that the unit is cocked and ready to deploy is done through the Status Indicator Window. Visual Status Indication 3 . View the status indicator through the clear window. If the red horizontal mark lines up with the window, the unit is properly cocked and ready to go to work. If not, the red mark will not be visible and the cocking procedure should be repeated.

21 Arming the SonoBlaster!®
Arming the SonoBlaster Unit for Activation: Lifting the activating arm sets the unit for action. With the handle lifted, the SonoBlaster alarm will trigger upon tilt or impact. Lowering the arm puts the SonoBlaster into ‘Safe Mode’ where it is safe to handle, move, store and nest with other cones. Automatic Safety Nesting a SonoBlaster cone with any other cone will lower the activating handle and automatically disarm the unit. SonoBlaster!® Operating Procedures Arming the SonoBlaster Unit: Upon installing a CO2 cartridge and cocking the unit, the SonoBlaster is ready for deployment. Raising the ACTIVATING ARM activates the unit for action. Upon impact, the SonoBlaster’s alarm will sound. To Deactivate the Unit, lowering the Activating Arm returns the SonoBlaster to ‘Safe Mode’ and it will not fire if tilted. The SonoBlaster unit can now be safely moved, stored, and nested with other traffic cones. As a safety feature, the unit’s Activating Arm is automatically moved into ‘Safe Mode’ when nested with another cone. SonoBlaster cones will nest with each other or with standard safety cones in a normal fashion.

22 SonoBlaster!® Work Zone Deployment
SonoBlaster units can be deployed and retrieved from a cone truck the same as standard traffic cones. The position of the unit’s activating arm near the top of the cone allows a “cone setter” to easily disarm a unit prior to lifting it off the roadway. Caltrans provided SonoBlaster with the use of a cone truck to design the ergonomics of the SonoBlaster’s activating arm for deployment of SonoBlaster units from the seat of the cone truck. SonoBlaster units can be deployed and retrieved from a cone truck the same as standard traffic cones. The position of the unit’s activating arm near the top of the cone allows a “cone setter” to easily: Set the cone on the roadway and arm the unit by pulling the lever up and, Disarm the unit prior to lifting it off the roadway by pushing the lever down.

23 SonoBlaster!® Activation
Shock Activation – The unit fires upon direct vehicle impact. Tilt Activation – The unit fires when tilted 90 degrees from vertical. Stability – The SonoBlaster is resistant to normal roadway harmonics and vibration. The SonoBlaster unit fires upon direct vehicle impact. The unit also fires when tilted 90 degrees from vertical. The SonoBlaster is resistant to normal roadway harmonics and vibration. Stability and False Alarm resistance are critical strengths of the SonoBlaster.

24 Typical SonoBlaster!® Layout
A Typical 100 Yard SonoBlaster Protection Zone. Cone Spacing = Approximately 20 Feet Apart. Requires only 17 SonoBlaster Equipped Cones. Can provide up to 5 seconds or more advance warning - depending on vehicle speeds in the Work Zone. Additional time is afforded if errant vehicle driver begins braking. This slide shows one of many potential SonoBlaster Work Zone Protection layouts. (Note: Chart is NOT to Scale) It depicts how just 17 cones can provide a 300 foot protection zone in advance of a work zone. This type of protection layout can provide up to 5 seconds or more of advance warning time for workers. Additional time is afforded if a driver applies braking upon hearing the warning alarm.

25 Combination Layout SonoBlaster layout patterns are adjusted to suit particular work zone configuration requirements. This pattern depicts the use of SonoBlaster Drums and Cones in conjunction with other Drums. SonoBlaster equipped drums and cones here are used in conjunction with an ongoing line of drums.

26 SonoBlaster!® Intra-Work Zone Use
Accidents Within a Work Zone involving workers injured by their own equipment is a growing problem: SonoBlasters define heavy-equipment work boundaries within a work zone separating workers from equipment. Audibly pinpoints the source of danger. Prevents equipment from backing over workers. Affords assistance that ‘Back-Up Alarms’ fail to provide. Other SonoBlaster life protection uses include Protection Inside a Work Zone – to prevent workers from being injured by their own equipment, trucks or loaders. Boundaries are set up for equipment and workers which are separated by a line of SonoBlaster equipped barricades. A work vehicle that moves too far into a SonoBlaster protected zone will trip the SonoBlaster and alert workers to move. The SonoBlaster affords a solution to the problem that back-up alarms fail to provide. Backup alarms are heard continually in work zones and are often ignored or ‘not heard’ by workers. The distinctive sound of the SonoBlaster attracts immediate attention calling the workers attention to pending danger.

27 SonoBlaster!® Applications
SonoBlasters work with: Traffic Cones Drums Large Base Delineators A-Frames Type III Barricades Security Fences Manhole Guards More... SonoBlaster units work in conjunction with standard cones, barricades, drums, A-frames, large base delineators, safety fences and manhole guards. Additional stands or receiving equipment setups are not required. The SonoBlaster mounts on: Traffic Cones 28” or taller Drums with open bottom access Portable Delineators with minimum lower tube diameter of 5” A-Frames Type III Barricades Security Fences Manhole Guards and more… The SonoBlaster is semi-permanently mounted via simple bolts, nuts and washers. Installation takes just a few minutes and requires just a 1/4” drill, wrench and screwdriver.

28 See above multiple product uses and applications.
SonoBlaster!® Uses Construction Sites Flagger Protection Stripping & Marking Operations Bridge Inspection & Repair Paving & Grading Operations Joint & Crack Sealing Survey Crew Protection Patching & Pot Hole Repairs Signal & Sign Maintenance Equipment Unloading Intra-Work Zone Protection Grade Crossing Repairs Aerial Platform Work Pedestrian / Bike Protection See above multiple product uses and applications. Additional Uses: Sweeping & Street Cleaning Snow and Deicing Operations Equipment Break-Downs Site Inspection Crews Mowing & Landscaping Tree Trimming Disaster / Hazmat Scenes Police & Fire Operations Crash Scenes More...

29 Beneficial SonoBlaster!® Users
DOTs Counties Municipalities Road Builders & Pavers Construction Contractors Utility Companies Maintenance Crews Surveyors See above user list… Plus other applications: Tree Service Operators Law Enforcement Gas Station Fuel Tanker Unloading Parking Facilities Bus, Transit & Railway Systems Military Operations Airport Operations

30 SonoBlaster!® Technical Specifications
Sound Level feet feet Alarm Duration 15 Seconds Size ” wide by 20” tall Unit Weight 3 lbs. Angle of Activation 90 Degrees Temperature Range -30 to +120 F. CO2 Cartridge Size 12 Grams Cartridge Shelf Life Indefinite Specifications Subject to Change Without Notice SonoBlaster sound Levels at 100 feet are over 100 dB. At 300 feet they produce a destincitive 80+ dB sound that disginguishes itself from roadway and other background noise. SonoBlaster Cones are economical to own and operate. The volume user cost is currently $ making the cost of a 300 foot, 17 unit SonoBlaster Protection Zone less than $2, Each SonoBlaster unit and includes: The SonoBlaster unit & Cartridge Holder Cocking Rod and Lanyard Mounting Hardware & Mounting Instructions Operating Manual High Quality, Certified CO2 Cartridges cost around $0.69 each. Cones, Drums, etc. are not included A Training Video is available.

31 The SonoBlaster!® Work Zone Intrusion Alarm
SonoBlaster has conducted both low and high speed crash trials with great results. In all trials, SonoBlaster equipped cones passed under test vehicles with no windshield contact. NCHRP350 testing is currently in process and we are advised by the FHWA that approval should not be a problem. NCHRP 350 Testing Trials currently in progress.

32 The SonoBlaster!® is a product of:
Paedia 499 Carolina Street San Francisco, CA 94107 Fax © 2002 Paedia Drums and Delineators Courtesy of Plastic Safety Systems, Inc.- Cleveland, OH 052202 In conclusion: The SonoBlaster provides a simple, easy to use solution to the growing problem of highway work zone crashes, injuries and deaths. The SonoBlaster offers a totally flexible solution that is adaptable to virtually any work zone or hazardous work environment. To quote a San Francisco Caltrans manager, “If it saves just one life, it’s worth our effort.” Doug Clark and Brian Brown Paedia

33 Wireless Warning Shield
Innovations From Logic Systems, Inc. The last intrusion device I would like to cover is the ‘Wireless Warning Shield’ from Logic Systems, Inc.

34 Wireless Warning Shield
What Is It for? The Wireless Warning Shield (WWS) was created to help prevent injuries and save lives by giving road construction workers as much warning as possible of vehicles encroaching in the “Cone Zone”. The main goal is to have an early warning system with the ability to let every worker in the “Cone Zone” construction area know that a vehicle has stuck a cone and may be heading their way. This will hopefully give them a chance to scramble to safety before they can be hit.

35 Wireless Warning Shield
How It Works! Vehicle strikes a TCD equipped with the PRT-300. A “Radio Chain Reaction” occurs. All receivers within range of any PRT-300 will sound off. Workers react to the danger coming their way. This uses a coded repeater style radio system. The unit that is triggered via the internal shock sensor, transmits a radio signal. This signal is picked up and retransmitted by the next 2 or 3 PRT-300 repeaters and each of them repeat as well, and so on. Since our range is up to 300 feet, several cones should be triggered at once causing redundancy of repeater points. This increases reliability of the repeater chain. The signal is also picked up by any of the receiving alarm systems that are within range. These alarms, whether Area Alarms, Personal Body Alarms, or Headphone alarms, will all signal a “hit” indicating possible danger.

36 Wireless Warning Shield
The Building Blocks PRT-300 repeating transceiver. Several styles of receivers and warning devices.  The WWS is made up several building blocks integrated into a two part system. These two parts consist of the PRT-300 repeating transceiver and several styles of receivers and warning devices.

37 PRT-300 Transmitter/Repeater
Wireless Warning Shield PRT-300 Transmitter/Repeater The PRT-300 is the heart of the detection and repeater system. It can be attached to any type of TCD, e.g., Cones, barriers, barricades, pylons, or virtually whatever comes in the future. The PRT-300 is secured via special weather proof Velcro, straps, or holders. The PRT-300 performs all of the following functions: If a car strikes a cone that is equipped with the PRT-300, it triggers a shock sensor that in turn sends data to the processor for evaluation. The processor discriminates between a hit and vibrations from things such as passing trucks or high winds. If the data is determined to be valid, the processor will output a code to the transmitter for broadcast. There are 6 different codes or “Zones”. Each Zone will only allow repeating of its’ particular code. This helps separate construction directions, (such as North and South) or allows the user to break the WWS into sections for long constructions areas. Units are manufactured for one Zone only. All Zones are color coded for ease of use. If the receiver picks up a signal from another PRT-300, the processor determines if it matches its’ Zone. If the Zones match, the processor sends a code to the transmitter for broadcast. This process take approximately .005 seconds or less. This process is repeated until the entire Zone of PRT-300’s have been triggered. The processor disables the transmitter for approximately 2 seconds after it has transmitted. This will stop any repeater bouncing of the signal up and down the length of the WWS. Using the photo sensor on the PRT-300, the processor determines if the unit is in storage or in use. If the sensor does not see light for approximately 48 hours, it will go to sleep until it does detect light of some kind. This will allow for battery conservation while in storage without the use of a switch. Because there is no switch, there is nothing for the user to turn on, or forget to turn on. The processor also monitors the battery level. If the battery level falls low, the processor will output a special code to the transmitter that will also be repeated via the other PRT-300’s in that Zone. This “low battery” code can only be decoded by the AR-100 Area Alarm. This low battery signal will trigger a different kind of warning. It will trigger a Sonalert type device that will beep once every 15 minutes until the low battery condition is corrected or until that unit completely dies. The “low battery” indication will start when there is approximately hours of battery life remaining Electronics are encapulated for weather proofing and shock resistance. Onboard charge pool capacitor capable of allowing the transmitter to send its signal, if hit, should the battery be knocked out of the holder. (If receiver is hit the capacitor will keep the transmitter alive for long enough to send the signal.)

38 Receivers and Warning Devices
Wireless Warning Shield Receivers and Warning Devices AR-100 Area Alarm Recommended for each site as an overall alarm broadcaster. It also houses the low batter enunciator. PBA-100 Personal Body Alarms Recommended for each construction site personal. Especially if they move around the Zone away from the AR-100. PHA Personal Headphone alarms Recommended for persons using high noise level equipment such as jack hammers.

39 Wireless Warning Shield
AR-100 *Area Alarm The AR-100 is designed as the overall group alarm. When triggered it emits a 125+ dB signal. The AR-100 is intended to be an overall localized group alarm. Unlimited number of AR-100’s may be used in any Zone. The AR-100 also contains the following features: *Newer version AR-100 (not pictured) has sounders in all four directions. Each sounder emits a 125+ dB signal and is easily distinguishable from traffic noises. Zone selectable. User selects the Zone of operation via a key locked selector. Receives and processes low battery signals from PRT-300s and will trigger a different kind of warning sound. It will trigger a Sonalert type device that will beep once every 15 minutes until the low battery condition is corrected or until the unit completely dies. The “low battery” indication will start when there is approximately hours of battery life remaining. Also has an internal battery monitor alarm. High capacity battery that will last for up to 1 year without recharging. (depending on conditions and triggers). Dry relay contacts for customer connected signaling device such as a cell phone or flashing lights. Compact and Tripod mountable. May also be mounted on a small floor stand. Weather resistant design. The unit may stay outside rain or shine.

40 PBA-100 Personal Body Alarm
Wireless Warning Shield PBA-100 Personal Body Alarm The PBA-100 is Zone selectable so one person can use it at different sites. It has an extremely loud alarm and strong vibrator. The PBA-100 is for everyone on the work site. Especially for someone that is not within earshot of the AR-100 Area alarm. They allow personal warning and do not rely on a sound wave from far away. They stay on the person of the user. They can be triggered via any of the PTR-300’s in the programmed Zone that are within range. Typical range is up to 300’ from the closest PRT-300. They are self contained units much like a pager in size. They contain a powerful vibrator and a very loud audio alarm (100+ dB). Both can be triggered at once. Will not trigger from low battery alarm transmission. Zone selectable by the user. Will operate in any one of the 6 Zones. Unlimited number of PBA-100’s may be used in any Zone.

41 PHA Personal Headphone Alarm
Wireless Warning Shield PHA Personal Headphone Alarm The PHA is designed to be used by persons that would not be able to hear or feel a Personal Body Alarm. The PHA could include users of jackhammers or other loud or vibrating equipment. Combines the quieting of safety headphones and the warning ability of the Wireless Warning Shield.

42 Competitive Advantages
Wireless Warning Shield Competitive Advantages Does not have the distance and direction limitations of sound only systems. Transmission distance is up to 300 feet from any TCD with a working transceiver. Unlimited number of receivers can be used. Multiple receiver types to fit applications. Advantages of the Wireless Warning Shield: Unlike strictly audio systems, the direction of sound is not relevant nor is distance limited by the direction of the wind. The WWS can be extended for an almost unlimited distance if deployed correctly. Radio driven system with virtually unlimited number of receivers. Alarms can be for areas and/or individual personal.

43 Competitive Advantages Cont.
Wireless Warning Shield Competitive Advantages Cont. Rugged construction! Ability to have multiple Zones. Processor functions allow for fewer false triggers from heavy vibrations. Can mount on almost any type of traffic control device. Low cost! Advantages of the Wireless Warning Shield cont.: 5) Rugged construction allows long life and reliable usage. All electronics on the transceivers are encapsulated to insure weather resistance and reliability. 6) Because of the availability of six different Zone codes, different directions of the same road can have alarms that do not overlap. This can help minimize confusion should a trigger happen that is not on your side of the road. 7) Patented sensors along with processor control allow for differentiation between vibrations and strikes. 8) Low cost. When introduced to the market, he PRT-300 have a target price to the market of around $50.00 per unit. The AR-100 would run about $200, the PBA-100 would be around $75 and the PHA would be about $150. The bottom line is that is can save injuries or lives in many, but not all cases.

44 Wireless Warning Shield
PRT-300 Specifications Coding Format: Channel encoding via custom processor Transmission Frequency: MHZ Transmission Range: Up to 300’ Power Supply: 2 AA batteries, photocell assist Battery Life: Approx months (calculated) Operational Temperature Range: 0-70C Unit Cost: Price $50.00 each (target) Dimensions: 3.5 x 2.5 x .75 in. (target) Weight is unknown at this time but expected to be about 4-8 oz. Six different coded units: Red, Blue, White, Black, Green, and Yellow. Each Code can be used as a direction or segmentation of a larger work area. Except for the battery compartment, the unit will be encapsulated to withstand weather and for ruggedness.

45 Wireless Warning Shield
Current Status The WWS is currently in the last stages of development. Physical testing of the concepts and sensors have been successful. Packaging is in development and should be complete within 3-6 months. Field testing to begin shortly after. Vendor believes because of where the device is mounted and its weight, that the wireless warning shield falls under a NCHRP 350 category I device.

46 Wireless Warning Shield
Logic Systems, Inc Contact us at: OR Logic Systems, Inc. 8360 Rovana Circle Suite 3 Sacramento, CA (916) Craig Nelson President

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