W Wiir re elle es ss s S Sm mo ok ke e D De ette ec cttiio on n a an nd d F Fiir re e S Su up pp pr re es ss siio on n S Sy ys stte em m Direct Sequence Spread Spectrum RF Technology comes to aviation:  Reduced installation time  Lower overall cost  Less installed weight Central Control Unit Suppression Control Display Unit (CCU) Control Unit (CDU) (SCU) 28 VDC Fire Warning Devices Halon System 28 VDC Smoke Detection Units (SDU) Smoke Detection Unit (SDU) Smoke Detection Units (SDU) 10800 N. Mavinee Drive, Tucson, Arizona 85737 Tel: (520) 297-0844 Fax: (520) 498-4924 www.securaplane.com ® Securaplane introduces Wireless Spread Spectrum RF Technology to the aviation industry. CDU Securaplane technologies now offers the air transport industry an elegant, cost effective solution to current requirements for smoke detection and fire suppression SDUs control systems. CCU Reduced Installation Time The paradigm of having to install a smoke detection and fire suppression system during a heavy maintenance cycle is broken! Airlines concerned that their “D” checks are at capacity for adding additional modifications have a choice of doubling their opportunity to install the mandated smoke system compared to a ® wired system. The Securaplane ST3000 wireless system can be installed during an overnight “C” check or other short inspection interval. Just ask any of the many airlines that have selected the revolutionary ST3000. Airlines and other installers have calculated anywhere from 40 to 60 percent fewer installation manhours ® for the Securaplane system versus a wired system. And more importantly, it allows becoming compliant by 1 March 2001. One airline states that it will turn an airplane in one day vs. three days for a wired system. Another airline has calculated just over 100 man-hours savings per airplane. System Architecture CDU Micro Micro Micro Micro SCU Transmitter Transmitter Controller Controller Controller Controller and and and and Associated Associated Associated Associated Receiver Receiver Interface Interface Interface Interface CCU Switches/ LEDs Configuration Module 10 Character Display The System can lose a channel or one SDUs per cargo bay and still meet Aircraft 28VDC Aircraft Fire Alarm, MEL dispatch requirements. Backlight Dimmer, Bell Cutout If two SDUs are failed in one bay, the system can still dispatch, provided no Configuration Module cargo is loaded in the Setup Switch Transmitter affected bay. SCU Micro Micro SDU Transmitter Transmitter Micro Controller Controller Controller and and Setup and Associated Associated Smoke Receiver Receiver Switch Associated Interface Interface Interface Temperature Batteries Pressure Pressure Squib Squib Switch Switch Identification Plug Halon Bottle #1 Halon Bottle #2 CDU = Control Display Unit CCU= Central Control Unit FWD AFT SCU = Suppression Control Unit Squib Squib Note the duality of all units SDU = Smoke Detection Unit Diverter Valve Dual Channel Redundancy = Dispatchability Spread Spectrum RF Transmission and DO-160C Spread Spectrum consists of rapidly transmitting data over not just one Narrow Band Signal ® but many frequencies. The Securaplane system uses 126 individual fre- quencies. By “spreading” the data over a broad “spectrum” or bandwidth, the apparent power per individual frequency is tiny, yet the cumulative sig- nal strength is quite powerful, providing tremendous “throughput”. Yet this signal operates below DO-160C, commercial aviation’s regulatory docu- ment. On an oscilloscope, a spread spectrum transmissions resemble (and operate inside) allowable ambient noise. Coding is used so that only a Spread Spectrum receiver matching the code sequence will receive the signal. Aircraft parked next to each other will not interfere with each others’ operation. Spread Spectrum advantages include:  Low probability of interference with other systems.  Sharing the same frequency band with other users.  Low probability of interference from other aircraft systems.  Reduction of multi-path signals. Spread Spectrum is a mature technology which has been used since 1944 by the military for secure communication, missile guidance and other critical applications where signal integrity is essential. Hedy Lamarr and The Fascinating Origin of George Antheil. Below: Their patent. Spread Spectrum RF Technology On August 11, 1942, MGM movie star Hedy Lamarr and musician George Antheil were awarded US Patent Number 2,292,387 for their "Secret Communications System". Lamarr had told Antheil about her idea for a Secret Communications System that could guide torpedoes to their target with- out being intercepted by the enemy, by sending messages between trans- mitter and receiver over multiple radio frequencies in a random pattern. The message would move so quickly across the radio waves that anyone tuning in to a particular frequency would only hear a blip, and would be unable to intercept the message. Lamarr and Antheil knew they had something that could help win the war. They sent their invention to the recently established National Inventors Council, and Antheil claimed that Charles Kettering himself, director of the Council and research director at General Motors, encour- aged them to patent it. The two inventors worked with an MIT electrical engineer to iron out some technical kinks, and submitted their patent pro- posal in 1941. Rather than develop the patent commercially, they gave it away to the government for the war effort. Initially, spread spectrum remained a military data communications technology. In the mid-1980s, the US military declassified spread-spectrum tech- nology, and the commercial sector began to develop it for consumer use. Control Display Unit (2 Bay) –Designed by pilots, for pilots.– Illuminates when Press to test all CDU lamps fire is detected. and LEDs. Press to turn on alphanu- meric display and step through any detected faults Illuminates when the Press to release fire system detects a fault, suppressant. or service is required. Arms fire suppression system. Alphanumeric display of system status. Indicates “FIRE” in the event of a Blinks when bottle is dis- fire. charged, steady when bottle is empty. Illuminates if system is not dispatchable. Selective Fire Suppression and Complete System Monitoring The CDU is the control point for the entire system. When the CCU had determined that a fire condition The 10 digit scrolling LED reports not only when and exists, the alphanumeric LED indicates in english which where a fire has been detected, but also reports on bay is affected. A large red LED will also indicate which system integrity, component status, and is used by bay is signalling a fire. The pilot actuates the guarded maintenance to install new or replacement compo- arm switch, then depresses the discharge (DISCH) but- nents. ton for the affected bay. If the pilot depresses the incor- rect button, the computer will sense the error and pre- Smoke sensors send test signals to the CCU in 30 vent actuation. second intervals. These signals are processed and sent to the CDU. Should any sensor fail to report, or The SCU makes wireless confirmation to the CCU that indicate low battery condition, the CDU will notify the the squib has fired, and the CDU flashes confirmation. operator. The system can be operated manually at any time by the pilot. Control Display Units for Different Applications CDU for 3 Bays (DC-10, MD-80 etc.) CDU Cargo Aircraft CDU for Business Jets (No Suppression) Passenger Cabin and Class “B” compartments Advanced Smoke/Temperature Detector ® Securaplane’s Smoke/Temperature Sensors (SDU’s) detect the presence of smoke and heat. Bay tem- perature is used along with “smoke” detection to determine if a fire condition exists. Normally the sys- tem requires two sensors to detect smoke before an alarm is issued. However, an alarm is issued if a single sensor detects smoke and temperature exceeding 150º F. Each SDU has a cargo bay identification plug and and a unique identification number. This code identifies the SDU to the CCU, and the identification plug shows which cargo bay it is located in. The identification plug is a quick disconnect type connector which is attached to the aircraft airframe by a steel lanyard. Replacing and installing a new sensor is as easy as disconnecting the plug, removing the sensor, and replacing it with another. Sensors are interchangeable. Each sensor is powered by two 5-year Lithium Thionyl Chloride batteries. Each unit signals the status of the batteries to the CCU every 30 seconds. At the heart of each patented SDU is a proven infra-red smoke detector, manufac- tured in the U.S. by a firm which demands over-engineering for maximum false alarm immunity. Every IR sensor is 100% tested with real smoke at three levels of obscura- tion. They are virtually immune to rapid condensation. Wired vs Wireless Block Diagrams Business Jets Smoke/temerature detectors (SDUs) Control Display Unit (CDU ) The alphanumeric display on the CDU identifies where smoke has been detected. Central Control Unit (CDU) IIn n G GA A/ /B Bu us siin ne es ss s J Je ett a ap pp plliic ca attiio on ns s,, tth he e S ST T3 30 00 00 0 tty yp piic ca alllly y m mo on niitto or rs s c clla as ss s “ “B B” ” ((a ac cc ce es sa ab blle e a ar re ea as s w wh he er re e s sm mo ok ke e m ma ay y n no ott b be e n no ottiic ce ed d)) a an nd d p pa as ss se en ng ge er r c ca ab biin n a ar re ea as s.. T Th ho ou ug gh h s sm mo ok ke e d de ette ec cttiio on n iis s n no ott a allw wa ay ys s r re eq qu uiir re ed d iin n tth he e c ca ab biin n,, p pa as ss se en ng ge er rs s m miig gh htt n no ott b be e a aw wa ak ke e tto o o ob bs se er rv ve e tth he e ffiir rs stt s siig gn ns s o off a a ffiir re e.. Quick installation and ease of maintenance are important aspects of a wireless smoke sensor system. Yet beyond this, the expensively appointed interiors of today’s business jets require a consideration of the effect that installing a smoke sensor system will have. The smoke/temperature sensors install unobtrusively in ceiling or wall panels. Removing paneling, and running wires from as many as seven different locations throughout the length of the aircraft would require extensive dismantling of the interior. A dual loop wiring harness also limits the locations that sensors can be placed. A wireless system allows flexibility in choosing discrete locations for sensor placement as well as limiting the amount of interior panels which would need to be disturbed, thus providing for the least impact to the interior furnishings. A wireless system greatly reduces the wear and tear on the aircraft interior, whether it be during installation, or during maintenance of the system, thus protecting an important investment. For retrofit applications, the minimum impact of installing a wireless system should be an important consideration. System Components and Specifications Smoke Detector Unit (SDU) Dual Central Control Unit (CCU) The CCU houses the Spread Spectrum Receiver that receives These units use both temperature and smoke detection to status from the smoke, temperature sensor and receives status reduce false alarms. from the SCU and controls halon discharge through the SCU. The identification plug provides each Sensor with its cargo bay The CCU also contains the detection logic which calculates the location. Each sensor has a unique code. This code identifies the probability of a fire. compartment of each sensor to the Dual Central Control Unit. Power: 28VDC @ 120ma max. The Identification Plug is housed in a quick disconnect type plug which is attached to the aircraft airframe by a steel lanyard. Size: 4” x 9” x 3” Power: 2 3V Lithium Thionyl Chloride cells: Weight: 2.93 lb Size: 5.5” x 5.5” x 2.25” Check-in Interval: 30 seconds Weight: 1.88 lb Memory: Non-volatile + Configuration Module Check-in Interval: 30 seconds Suppressant Control Unit (SCU) The Dual SCU houses the Spread Spectrum Transmitter and Control Display Unit (CDU) Receiver and Microcontroller that communicates with the CCU. The SCU transmits bottle pressure, squib continuity, and battery energy level information to the CCU. Control Display Units (CDU) include automatic monitoring and fault isolation. The digital display lights for maintenance func- The SCU receives the Halon discharge command from the tions, and back-up fire indication. CCU and fires the appropriate squibs. Units have been designed for a wide variety of aircraft types Contents: Spread Spectrum Transmitter/Receiver +Microcontroller with varying numbers of cargo bays and sensor placements. Power: 28VDC @120mA CDU’s for (3) cargo bays are available. Weight: 3.69 lb Power: 28VDC @ 120ma max. Check-in Interval: 30 seconds Size: 5.75” x 5” x 2” Memory: Non-volatile + Configuration Module Weight: 1.01 lb Battery Life for a Securaplane® Smoke Detector 10 NOTE: The smoke detector sends a battery level and RF 9 test every 30 seconds. 8 7 6 Battery Type: Battery Life 5 Lithium Thionyl (years) Chloride — primary 4 3 Meets: Disposal 2 MIL-B4946/(ER) Same as for Ni-Cad Cells 1 U/L - 1642 $2.00/lb. min. 0 MIL - STD - 810C BDT quote 12/97 0 10 20 30 40 50 MIL - STD - 202F Alarms per Day With more than 10 years of avionics experience that includes the pioneering application of spread spectrum radio frequency (RF) ® technology to aviation systems, Securaplane Technologies is committed to an innovative approach. We do not do “me-too” products, preferring to instead take a fresh look at a difficult prod- uct requirement, redefining the paradigm rather than redesigning an existing solution. ® Securaplane has built a strong customer base with business jet manufacturers, major airlines, and air freight carriers with a diverse offering of products, including emergency batteries, main battery chargers, and the world’s most popular electronic aircraft security systems. ® Securaplane’s new facility in Tucson, Arizona. 10800 N. Mavinee Drive  Tucson, Arizona 85737 Phone (520) 297-0844  800-279-7327  Fax (520) 498-4924  E-mail info@securaplane.com