EP0336782A2 - Schi-Alarmsystem - Google Patents

Schi-Alarmsystem Download PDF

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Publication number
EP0336782A2
EP0336782A2 EP89303521A EP89303521A EP0336782A2 EP 0336782 A2 EP0336782 A2 EP 0336782A2 EP 89303521 A EP89303521 A EP 89303521A EP 89303521 A EP89303521 A EP 89303521A EP 0336782 A2 EP0336782 A2 EP 0336782A2
Authority
EP
European Patent Office
Prior art keywords
unit
movement
alarm
mode
alarm unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89303521A
Other languages
English (en)
French (fr)
Other versions
EP0336782A3 (en
Inventor
David Rowan
Daniel Marcus Jayson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKI RECOVERY SYSTEMS Ltd
Original Assignee
SKI RECOVERY SYSTEMS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SKI RECOVERY SYSTEMS Ltd filed Critical SKI RECOVERY SYSTEMS Ltd
Publication of EP0336782A2 publication Critical patent/EP0336782A2/de
Publication of EP0336782A3 publication Critical patent/EP0336782A3/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C11/00—Accessories for skiing or snowboarding
    • A63C11/003—Signalling devices, e.g. acoustical or visual

Definitions

  • the invention relates to a ski alarm system and provides an alarm unit for a ski which allows the ski to be detected when buried in snow.
  • a unit has use in detecting the whereabouts of a skier who may have been buried in an accident and also in finding lost skis.
  • a preferred feature of the invention is the additional use of the unit in detecting attempted theft of skis.
  • an alarm unit for a ski comprising a sounder for emitting an audible alarm signal; a battery powered circuit connected to energise the sounder; and a movement responsive unit connected to the circuit, the circuit including a timer and being arranged to activate the sounder when the movement responsive unit has given no output representative of movement for a predetermined time.
  • the alarm unit may, instead of being designed as an accessory to be fixed to a ski, be incorporated in the ski binding.
  • the circuit has at least two modes to which it may be set, namely a ski mode in which, as described above, lack of movement is caused to energise the sounder, and a theft mode in which the converse is true, and the sounder is energised on detection of movement by the movement-responsive unit.
  • the circuit has additionally a test mode in which the alarm functions may be tested and a standby mode in which the circuit is clear to be set to one of the other modes.
  • Mode setting may be accomplished by mechanical or magnetic reed switches associated with the alarm unit.
  • a remote control unit is provided.
  • the remote control unit may effect control by audio signals, perhaps of ultrasonic frequencies or by radio control.
  • the remote control unit is an infrared transmitter which issues coded infrared signals to a receiver unit incorporated in the alarm unit.
  • the movement responsive unit comprises a housing with walls, internal electrodes on different walls of the housing and a number of discrete electrically conductive members in the housing which are free to move and which rest in contact with each other and with the electrodes to form conductive bridge between the electrodes, movement of the members being effective to change the resistance presented by the members between the electrodes.
  • the members are preferable metal balls
  • the housing may be oil-filled.
  • the sounder is preferably a piezo-electric unit. Extensive experiments have established that in typical operating conditions there is an optimum frequency range which, for a given power output, offers the best sound detection and position location characteristics. This frequency range is between 2000 and 4000 Hz.
  • the system comprises alarm units 1 and 2 mounted on respective skis 3 and 4.
  • a control unit 5 is hand held and issues infra-red signals to control the mode settings of the alarm units.
  • FIG 2 shows an alarm unit comprising a cover 6, mounting screws 7, a printed circuit board assembly 8 with a light emitting diode 9, an acoustically transparent cover 10, a base plate 11 which carries a battery housing/pcb mount 12 and a piezo-electric sounder 13.
  • a motion detector (not shown separately). This is described in detail with reference to Figure 4.
  • a suitable commercial motion detector is made by Kelvin Impex under the designation MAC 702. This kind of detector is found by experiment to be superior to a mercury switch or trembler switch.
  • the battery is shown at 14 and a water-proof gasket at 15.
  • Figure 3 shows the infra-red control unit 5 comprising an upper case 16, and a lower case 17, a battery 18, a battery cover 19, and a printed circuit board assembly 20 having an infra-red transmitter 21 and an acuating switch 22.
  • a spring-loaded reel has a clip-on attachment 23 to allow the unit to be clipped to clothing.
  • the overall philosophy and design concept considered the following:- ability to withstand vibration; Ability to withstand extremes of temperature; Imperviousness to moisture; Small size, weight and low profile for mounting on skis; and Low power consumption for minimum battery size.
  • ASIC Application Specific Integrated Circuits
  • ASIC Application Specific Integrated Circuits
  • S M D Surface Mount Device refers to the way in which the printed circuit board is manufactured. Instead of conventional leaded components soldered onto a circuit board, S M D places the components directly onto the board which are then soldered in an infra red oven and subsequently protectively coated. This concept results in a small P C B which is insensitive to moisture and vibration, is compact, and very economical to manufacture.
  • the motion detector comprising a cylindrical housing having two metal end walls 41, 42 which constitute electrodes. Leads 43, 44 connect the detector to the alarm circuit.
  • the end walls are separated by an insulating cylindrical wall 45.
  • Within the housing is a collection of steel balls 46 which rest on each other and against the end walls, thereby making bridging contact between the end walls.
  • the housing is vibrated or shaken the contacts made by the balls are disturbed and there is a consequent electrical resistance change between the end walls. This is detected as a movement signal by the alarm circuit.
  • circuit of the controller 5 This comprises an application specific integrated circuit (ASIC) 47 which has external components including a battery (not shown) with a manual 'on' switch 48.
  • ASIC application specific integrated circuit
  • Two test input lines 49, 50 connected to receive manually controllable inputs are effective to test the transmitter.
  • a test output 51 is available to allow analysis of the test results.
  • a status LED 52 is provided to indicate the status of the transmitter.
  • An infrared emitter 53 with associated driving transistor 54 and resistor 55 is provided to give a modulated pulsed output. Pulse timing is governed by a 32 kHz crystal 56 and the particular modulation is determined by a code track 57. This is constituted by a set of conductive tracks connecting both a 9 volt line 58 and an earth line 59 to twelve output pins of the ASIC. The operative code for the transmitter is determined by breaking the track to each pin either from the line 58 or from the line 59. Thus, a particular set of voltages is applied as a binary parallel number to the twelve pins. This code corresponds to the same code set in the associated receiver, thereby ensuring that the liklihood of interference with other transmitter/receiver sets is remote.
  • FIG. 6 there is shown a block diagram of the receiver in the alarm unit.
  • This comprises an ASIC 60 with external components including an infra-red receiver diode 61 and associated RC network 62. Pulses from the diode 61 are applied to an operational amplifier 63 forming part of the ASIC.
  • a code track 64 of the same nature and configuration as track 57 of the transmitter is provided.
  • a 32 kHz crystal 65 provides clock pulses and an LED 66 indicates the status of the receiver.
  • the motion detector is represented at 67 in Figure 6 and provides an input to a timer circuit 68 in the ASIC.
  • a mode selector unit 69 in the ASIC responds to inputs decoded from the diode 61 and according to the mode determined by the transmitted pulses controls the timer circuit.
  • the timer circuit is controlled to be reset by input from the motion detector. If a predetermined time is allowed to elapse without a reset from the motion detector then the timer circuit activates a drive circuit 70 in the ASIC which causes the piezo-electric sounder 71 to emit a warbling alarm tone.
  • the timer circuit is controlled to activate the drive circuit it successive movements are detected within a predetermined time.
  • FIG. 7 there is shown a transmitter for an alternative system of control.
  • the transmitter is a radio transmitter instead of an infra-red transmitter.
  • An ASIC 73 is powered by a battery 74 via a manual switch 75.
  • a 32 kHz crystal 76 gives clock pulses and a code track 77 of the kind described above provides a code for pairing a transmitter and receiver.
  • Output from the ASIC modulates a 149 MHz radio transmitter 78.
  • a complementary radio receiver is provided on each ski to respond to the transmitter and perform the functions outlined above for the infra-red receiver.
  • An alternative arrangement is to provide that the alarm emits a "warbling" type resonse between the two frequency extremes. This gives maximum audibility and also when in SKI MODE allows ease of pin-pointing the skis.
  • the remote control is momentarily operated by squeezing the case. This in turn activates an internal switch and causes an encoded infra red transmission to be emitted.
  • the chance of two identical codes being assigned to two transmitters is 1 in 4096 which are acceptable especially when weighting the chances of these two units being in the same place at any one time.
  • the enablement procedure is as follows:- Enable SKI MODE press once. Enable THEFT MODE press two times. Enable TEST MODE press three times. Reenable STANDBY MODE from any of above press once.
  • the system must always return to the STANDBY MODE prior to changing the MODE of operation. As each MODE is enabled the ski based alarms will momentarily sound at a reduced power level. Whilst both the ski based and remote control based LED lights will continually flash a coded sequence indicating visually the enabled MODE.
  • the remote control unit has a range of approximately 2 metres thus allowing ease of operation when the skis are either being worn or left alone.
  • the S B U's Ski Based Units
  • the S B U's will indicate audibly that a new mode has just been enabled and visually (on both the S B U's and the remote control) on a continuous basis which mode is currently enabled.
  • the visual status is shown by the LED'S flashing the coded sequence set out below:-
  • the design of the case has been developed to minimise snow and ice build up and to complement the present ski binding designs in aesthetics.
  • the internal case design has been similarily developed in order to enhance the sound level emmision.
  • the mounting of the S B U's is achieved by using two set hexagonal socket head screws per unit connecting the case via a rubber gasket to the ski. This method of mounting results in a deformation absorbent, water resistant seal which is required when considering the ski deformations locally during operation.
  • shouldered self tapping set screws are employed.
  • the S B U is screwed down until the shoulder bottoms out on the ski face.
  • Such an infra-red controlled theft-only unit can be made inexpensive strictlyly and can be made to sound the alarm on detection of any required movement.
  • the unit can be used to detect burglars by the movement of doors or windows, or the theft of any article to which the alarm unit is fixed or is resting - e.g. bicycles, motorcycles, television sets etc.
  • the above-described system for avoiding unnecessary alarms in the event of accidental movement is useful for such arrangements in which the alarm unit is fixed to the article to be protected.
  • the delay time of 16 seconds can be changed to suit individual circumstances.

Landscapes

  • Burglar Alarm Systems (AREA)
EP19890303521 1988-04-08 1989-04-10 Ski alarm system Withdrawn EP0336782A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888808337A GB8808337D0 (en) 1988-04-08 1988-04-08 Alarm system
GB8808337 1988-04-08

Publications (2)

Publication Number Publication Date
EP0336782A2 true EP0336782A2 (de) 1989-10-11
EP0336782A3 EP0336782A3 (en) 1990-09-19

Family

ID=10634864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890303521 Withdrawn EP0336782A3 (en) 1988-04-08 1989-04-10 Ski alarm system

Country Status (2)

Country Link
EP (1) EP0336782A3 (de)
GB (1) GB8808337D0 (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741276A1 (fr) * 1995-11-21 1997-05-23 Suntech Dispositif antivol autonome pour ski ou assimile ski
WO1999043398A1 (en) * 1998-02-25 1999-09-02 Bruce Chittenden Sport apparatus locator device
EP1007975A4 (de) * 1997-06-02 2002-04-10 Phatrat Tech Inc Sport-überwachungssystem zur bestimmung von luftzeit, geschwindigkeit, absorbierter leistung, und anderer grössen wie fallhöhe
US6659494B1 (en) * 2000-08-10 2003-12-09 Ralph M. Martin Backwards release ski binding on a pivot plate mount
US6769711B1 (en) 2000-08-10 2004-08-03 Ralph M. Martin Gas powered backwards release ski binding
US6856934B2 (en) 1994-11-21 2005-02-15 Phatrat Technology, Inc. Sport monitoring systems and associated methods
US6963818B2 (en) 1994-11-21 2005-11-08 Phatrat Technology, Inc. Mobile speedometer system and associated methods
US7104564B2 (en) * 2000-08-10 2006-09-12 Martin Ralph M Backwards release ski binding
US7552031B2 (en) 2000-12-15 2009-06-23 Apple Inc. Personal items network, and associated methods
US7643895B2 (en) 2006-05-22 2010-01-05 Apple Inc. Portable media device with workout support
US7698101B2 (en) 2007-03-07 2010-04-13 Apple Inc. Smart garment
US7813715B2 (en) 2006-08-30 2010-10-12 Apple Inc. Automated pairing of wireless accessories with host devices
US7911339B2 (en) 2005-10-18 2011-03-22 Apple Inc. Shoe wear-out sensor, body-bar sensing system, unitless activity assessment and associated methods
US7913297B2 (en) 2006-08-30 2011-03-22 Apple Inc. Pairing of wireless devices using a wired medium
US8073984B2 (en) 2006-05-22 2011-12-06 Apple Inc. Communication protocol for use with portable electronic devices
US9137309B2 (en) 2006-05-22 2015-09-15 Apple Inc. Calibration techniques for activity sensing devices
US9868041B2 (en) 2006-05-22 2018-01-16 Apple, Inc. Integrated media jukebox and physiologic data handling application

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057791A (en) * 1976-02-09 1977-11-08 Bimmerle Charles F Motion responsive alarm system
ZA803163B (en) * 1979-06-02 1981-05-27 E Cohen Personal monitoring device
EP0047629A1 (de) * 1980-09-09 1982-03-17 Winter And Summer Pursuits Limited Skianzeigegerät
FR2549262B1 (fr) * 1983-07-13 1986-05-30 Seram Ets M Bohn Installation de surveillance et de protection d'un homme seul travaillant dans une zone dangereuse ou isolee
US4535322A (en) * 1983-08-01 1985-08-13 Yeski Frederick R Ski theft alarm and runaway ski locator

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8036851B2 (en) 1994-11-21 2011-10-11 Apple Inc. Activity monitoring systems and methods
US6856934B2 (en) 1994-11-21 2005-02-15 Phatrat Technology, Inc. Sport monitoring systems and associated methods
US6963818B2 (en) 1994-11-21 2005-11-08 Phatrat Technology, Inc. Mobile speedometer system and associated methods
US7451056B2 (en) 1994-11-21 2008-11-11 Phatrat Technology, Llc Activity monitoring systems and methods
US7512515B2 (en) 1994-11-21 2009-03-31 Apple Inc. Activity monitoring systems and methods
US8352211B2 (en) 1994-11-21 2013-01-08 Apple Inc. Activity monitoring systems and methods
FR2741276A1 (fr) * 1995-11-21 1997-05-23 Suntech Dispositif antivol autonome pour ski ou assimile ski
EP1007975A4 (de) * 1997-06-02 2002-04-10 Phatrat Tech Inc Sport-überwachungssystem zur bestimmung von luftzeit, geschwindigkeit, absorbierter leistung, und anderer grössen wie fallhöhe
WO1999043398A1 (en) * 1998-02-25 1999-09-02 Bruce Chittenden Sport apparatus locator device
US6659494B1 (en) * 2000-08-10 2003-12-09 Ralph M. Martin Backwards release ski binding on a pivot plate mount
US6769711B1 (en) 2000-08-10 2004-08-03 Ralph M. Martin Gas powered backwards release ski binding
US7104564B2 (en) * 2000-08-10 2006-09-12 Martin Ralph M Backwards release ski binding
US10639552B2 (en) 2000-12-15 2020-05-05 Apple Inc. Personal items network, and associated methods
US10427050B2 (en) 2000-12-15 2019-10-01 Apple Inc. Personal items network, and associated methods
US10406445B2 (en) 2000-12-15 2019-09-10 Apple Inc. Personal items network, and associated methods
US10080971B2 (en) 2000-12-15 2018-09-25 Apple Inc. Personal items network, and associated methods
US9643091B2 (en) 2000-12-15 2017-05-09 Apple Inc. Personal items network, and associated methods
US8280682B2 (en) 2000-12-15 2012-10-02 Tvipr, Llc Device for monitoring movement of shipped goods
US8688406B2 (en) 2000-12-15 2014-04-01 Apple Inc. Personal items network, and associated methods
US8396687B2 (en) 2000-12-15 2013-03-12 Phatrat Technology, Llc Machine logic airtime sensor for board sports
US8374825B2 (en) 2000-12-15 2013-02-12 Apple Inc. Personal items network, and associated methods
US7627451B2 (en) 2000-12-15 2009-12-01 Apple Inc. Movement and event systems and associated methods
US7552031B2 (en) 2000-12-15 2009-06-23 Apple Inc. Personal items network, and associated methods
US8280681B2 (en) 2000-12-15 2012-10-02 Phatrat Technology, Llc Pressure-based weight monitoring system for determining improper walking or running
US8217788B2 (en) 2005-10-18 2012-07-10 Vock Curtis A Shoe wear-out sensor, body-bar sensing system, unitless activity assessment and associated methods
US9968158B2 (en) 2005-10-18 2018-05-15 Apple Inc. Shoe wear-out sensor, body-bar sensing system, unitless activity assessment and associated methods
US12419380B2 (en) 2005-10-18 2025-09-23 Apple Inc. Unitless activity assessment and associated methods
US11786006B2 (en) 2005-10-18 2023-10-17 Apple Inc. Unitless activity assessment and associated methods
US11140943B2 (en) 2005-10-18 2021-10-12 Apple Inc. Unitless activity assessment and associated methods
US10645991B2 (en) 2005-10-18 2020-05-12 Apple Inc. Unitless activity assessment and associated methods
US8749380B2 (en) 2005-10-18 2014-06-10 Apple Inc. Shoe wear-out sensor, body-bar sensing system, unitless activity assessment and associated methods
US10376015B2 (en) 2005-10-18 2019-08-13 Apple Inc. Shoe wear-out sensor, body-bar sensing system, unitless activity assessment and associated methods
US7911339B2 (en) 2005-10-18 2011-03-22 Apple Inc. Shoe wear-out sensor, body-bar sensing system, unitless activity assessment and associated methods
US9578927B2 (en) 2005-10-18 2017-02-28 Apple Inc. Shoe wear-out sensor, body-bar sensing system, unitless activity assessment and associated methods
US9868041B2 (en) 2006-05-22 2018-01-16 Apple, Inc. Integrated media jukebox and physiologic data handling application
US8346987B2 (en) 2006-05-22 2013-01-01 Apple Inc. Communication protocol for use with portable electronic devices
US9154554B2 (en) 2006-05-22 2015-10-06 Apple Inc. Calibration techniques for activity sensing devices
US9137309B2 (en) 2006-05-22 2015-09-15 Apple Inc. Calibration techniques for activity sensing devices
US7643895B2 (en) 2006-05-22 2010-01-05 Apple Inc. Portable media device with workout support
US8060229B2 (en) 2006-05-22 2011-11-15 Apple Inc. Portable media device with workout support
US8073984B2 (en) 2006-05-22 2011-12-06 Apple Inc. Communication protocol for use with portable electronic devices
US7913297B2 (en) 2006-08-30 2011-03-22 Apple Inc. Pairing of wireless devices using a wired medium
US7813715B2 (en) 2006-08-30 2010-10-12 Apple Inc. Automated pairing of wireless accessories with host devices
US8181233B2 (en) 2006-08-30 2012-05-15 Apple Inc. Pairing of wireless devices using a wired medium
US7698101B2 (en) 2007-03-07 2010-04-13 Apple Inc. Smart garment
US8099258B2 (en) 2007-03-07 2012-01-17 Apple Inc. Smart garment

Also Published As

Publication number Publication date
EP0336782A3 (en) 1990-09-19
GB8808337D0 (en) 1988-05-11

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