EP1501061A1 - Device for detecting reduced vigilance condition - Google Patents

Device for detecting reduced vigilance condition Download PDF

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Publication number
EP1501061A1
EP1501061A1 EP04460032A EP04460032A EP1501061A1 EP 1501061 A1 EP1501061 A1 EP 1501061A1 EP 04460032 A EP04460032 A EP 04460032A EP 04460032 A EP04460032 A EP 04460032A EP 1501061 A1 EP1501061 A1 EP 1501061A1
Authority
EP
European Patent Office
Prior art keywords
photodetectors
electro
external information
linked
incorporated
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.)
Granted
Application number
EP04460032A
Other languages
German (de)
French (fr)
Other versions
EP1501061B1 (en
Inventor
Jan Orzechowski
Irena Gronowska
Marcin Trzcinski
Antoni Latuszek
Wlodzimierz Lukasik
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.)
Politechnika Warszawska
Original Assignee
Politechnika Warszawska
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Publication date
Application filed by Politechnika Warszawska filed Critical Politechnika Warszawska
Publication of EP1501061A1 publication Critical patent/EP1501061A1/en
Application granted granted Critical
Publication of EP1501061B1 publication Critical patent/EP1501061B1/en
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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms

Definitions

  • the invention concerns a device for detecting of reduced vigilance condition in case of individuals which may create dangerous situations, particularly those operating the industrial facilities, working in arduous thermal conditions or in environment contaminated with toxic gases.
  • the known device incorporates a camera analysing the speed of eyeballs movements or an illuminator and detector of eyelid shadow analysing the closing time of that eyelid.
  • the device designed for assessment of fatigue and weariness of the driver in course of driving has been disclosed in US Patent 5,402,109 in form of spectacle frames with a light source and a photodetector incorporated inside in manner resulting in intersection of the light beam and the eyelid.
  • the line connecting said light source and photodetector is situated on the level of eyeball and below the edge of open eyelid. The light is prevented to reach the photodetector in case of closed eyelid.
  • an electronic timer will be activated.
  • sound alarm is activated as the warning of reduced vigilance condition of the driver.
  • the disadvantage of the known device lies in the fact that owing to its functioning based only on the measurement of interception time of the detector of eyelid position change in relation to receptacle and due to other possible disturbances, required reliability and precise early warning of increasing hazard are not ensured by the known device.
  • the essence of the present invention consists in connection of photodetectors with an electro-acoustic transducer via light exposure level and time analyser based on microprocessor and situated in spectacle frame.
  • Said device incorporates a receiver connected with an electro-acoustic transducer and favourably linked with external information source via wireless link as well as incorporates a transmitter favourably linked with external information source via wireless link.
  • the photodetectors are incorporated in form of a series of photodetectors situated in slidable housing fixed to the spectacle frame.
  • the solution according to the present invention is characterized by increased versatility, precision and reliability of the device owing to its independence on head position in relation to the camera as well as independence on position of spectacle frame in relation to eyeballs and possibility of more comprehensive analysis of operator's condition.
  • the subject of the invention has been presented in form of an embodiment in the drawing illustrating the device for detecting reduced vigilance condition in axonometric view.
  • the device incorporates spectacle frames 2 with fixed IF radiation point source 3 and a series of photodetectors 5 situated in slidable housing 4 fixed to one of ear arms of the spectacle frame in manner ensuring coverage of eyelid shadow borderline in any probable position of the spectacles.
  • a microprocessor based light exposure level and time analyser 6 as well as alarm levels operation, situated in adjoining slidable housing 4 is electrically connected to the output of photodetectors 5 .
  • a receiver 7 - transmitter 7 ' is incorporated in slidable housing 4 , next to microprocessor based analyser 6 and linked via radio link with a stationary transmitter - receiver constituting an external information source 9 , particularly in hazard condition.
  • An electro-acoustic transducer 8 fixed on the end of the ear arm is electrically connected with microprocessor based analyser 6 in manner enabling direct warning the endangered person without the use of an external information source 9 .
  • the said electro-acoustic transducer 8 electrically connected with the receiver 7 in manner enabling the warning of endangered person by means of an external information source 9 , for example the dispatcher.
  • the device is supplied by means of a battery with an inverter 1 and fixed in another ear arm of the receptacle frame 2.
  • receivers and transmitters are possible in infrared radiation range.
  • the fastening of the series of photodetectors 5 and microprocessor based light exposure level and time analyser 6 in slidable housing 4 enables their precise positioning in relation to eyeball and eyelid as well as functioning of the device in manner independent of head position in relation to the camera and of receptacle frames in relation to eyeballs.
  • the receiver 7 - transmitter 7 ' are used for communication with the operator when making external decision and for hazard warning in environment. In case of hazard, it is advisable to inform the occupants of adjacent area on alarm condition or on necessity of shutdown of power supply of the vehicle, closing of valves, oxygen supply or evacuation of the operator from endangered area.
  • the selection of the band of applied electromagnetic or acoustic waves depends on disturbances and on required range.
  • the communication between the device and operator is established by means of the electro-acoustic transducer 8.
  • the receptacle frame 2 may be provided with ophthalmic or eye - protection glasses.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Eyeglasses (AREA)
  • Emergency Alarm Devices (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Eye Examination Apparatus (AREA)
  • Electric Ovens (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

The device incorporates a radiation source (3) fixed in a spectacle frame and photodetectors covering the eyelid shadow borderline, wherein said photodetectors (5) are connected with an electro-acoustic transducer (8) via a microprocessor based light exposure level and time analyser (6), situated in the spectacle frame (2).
The device incorporates a receiver (7) connected with an electro-acoustic transducer (8) and linked with an external information source (9) via a wireless link and a transmitter (7') linked with the external information source (9) via a wireless link.
The photodetectors (5) are incorporated in form of a series of photodetectors situated in a slidable housing (4) fixed to the spectacle frame (2).

Description

  • The invention concerns a device for detecting of reduced vigilance condition in case of individuals which may create dangerous situations, particularly those operating the industrial facilities, working in arduous thermal conditions or in environment contaminated with toxic gases.
  • The known device incorporates a camera analysing the speed of eyeballs movements or an illuminator and detector of eyelid shadow analysing the closing time of that eyelid. The device designed for assessment of fatigue and weariness of the driver in course of driving has been disclosed in US Patent 5,402,109 in form of spectacle frames with a light source and a photodetector incorporated inside in manner resulting in intersection of the light beam and the eyelid.
    The line connecting said light source and photodetector is situated on the level of eyeball and below the edge of open eyelid. The light is prevented to reach the photodetector in case of closed eyelid. When light beam reaching the photodetector is interrupted, an electronic timer will be activated. In case of eyelid drop duration exceeding 0.4s being the symptom of driver weariness, sound alarm is activated as the warning of reduced vigilance condition of the driver.
  • The disadvantage of the known device lies in the fact that owing to its functioning based only on the measurement of interception time of the detector of eyelid position change in relation to receptacle and due to other possible disturbances, required reliability and precise early warning of increasing hazard are not ensured by the known device.
  • The essence of the present invention consists in connection of photodetectors with an electro-acoustic transducer via light exposure level and time analyser based on microprocessor and situated in spectacle frame. Said device incorporates a receiver connected with an electro-acoustic transducer and favourably linked with external information source via wireless link as well as incorporates a transmitter favourably linked with external information source via wireless link. The photodetectors are incorporated in form of a series of photodetectors situated in slidable housing fixed to the spectacle frame.
  • The solution according to the present invention is characterized by increased versatility, precision and reliability of the device owing to its independence on head position in relation to the camera as well as independence on position of spectacle frame in relation to eyeballs and possibility of more comprehensive analysis of operator's condition.
  • The subject of the invention has been presented in form of an embodiment in the drawing illustrating the device for detecting reduced vigilance condition in axonometric view.
  • The device incorporates spectacle frames 2 with fixed IF radiation point source 3 and a series of photodetectors 5 situated in slidable housing 4 fixed to one of ear arms of the spectacle frame in manner ensuring coverage of eyelid shadow borderline in any probable position of the spectacles. A microprocessor based light exposure level and time analyser 6 as well as alarm levels operation, situated in adjoining slidable housing 4 is electrically connected to the output of photodetectors 5. A receiver 7 - transmitter 7' is incorporated in slidable housing 4, next to microprocessor based analyser 6 and linked via radio link with a stationary transmitter - receiver constituting an external information source 9, particularly in hazard condition. An electro-acoustic transducer 8 fixed on the end of the ear arm is electrically connected with microprocessor based analyser 6 in manner enabling direct warning the endangered person without the use of an external information source 9. The said electro-acoustic transducer 8 electrically connected with the receiver 7 in manner enabling the warning of endangered person by means of an external information source 9, for example the dispatcher.
    The device is supplied by means of a battery with an inverter 1 and fixed in another ear arm of the receptacle frame 2.
  • The operation of receivers and transmitters is possible in infrared radiation range. The fastening of the series of photodetectors 5 and microprocessor based light exposure level and time analyser 6 in slidable housing 4 enables their precise positioning in relation to eyeball and eyelid as well as functioning of the device in manner independent of head position in relation to the camera and of receptacle frames in relation to eyeballs. The receiver 7 - transmitter 7' are used for communication with the operator when making external decision and for hazard warning in environment. In case of hazard, it is advisable to inform the occupants of adjacent area on alarm condition or on necessity of shutdown of power supply of the vehicle, closing of valves, oxygen supply or evacuation of the operator from endangered area.
  • The selection of the band of applied electromagnetic or acoustic waves depends on disturbances and on required range. The communication between the device and operator is established by means of the electro-acoustic transducer 8.
    The receptacle frame 2 may be provided with ophthalmic or eye - protection glasses.

Claims (5)

  1. A device for detecting of reduced vigilance condition of technical equipment operator, incorporating a radiation source fixed in the spectacle frames and photodetectors covering the eyelid shadow borderline, wherein said photodetectors are connected with an electro-acoustic transducer, characterized by the photodetectors (5) connected with an electro-acoustic transducer (8) via a microprocessor based light exposure levels and times analyser (6), situated in receptacle frame.
  2. The device according to claim 1, wherein the receiver (7) is incorporated and connected with an electro-acoustic transducer (8) and favourably linked with external information source (9) via wireless link.
  3. The device according to claim 1, wherein the transmitter (7') is incorporated and connected and favourably linked with external information source (9) via wireless link
  4. The device according to claim 1, wherein the receiver (7) is incorporated and connected with an electro-acoustic transducer (8) and favourably linked with external information source (9) via wireless link and wherein the transmitter (7') is incorporated and favourably linked with external information source (9) via wireless link.
  5. The device according to claim 1, or 2, or 3, or 4, wherein the photodetectors (5) are incorporated in form of a series of photodetectors situated in slidable housing (4) fixed to the spectacle frame (2).
EP04460032A 2003-07-23 2004-07-23 Device for detecting reduced vigilance condition Active EP1501061B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL36141003 2003-07-23
PL361410A PL207321B1 (en) 2003-07-23 2003-07-23 Device designed to detect reduced weight condition

Publications (2)

Publication Number Publication Date
EP1501061A1 true EP1501061A1 (en) 2005-01-26
EP1501061B1 EP1501061B1 (en) 2007-04-18

Family

ID=33488056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04460032A Active EP1501061B1 (en) 2003-07-23 2004-07-23 Device for detecting reduced vigilance condition

Country Status (4)

Country Link
EP (1) EP1501061B1 (en)
AT (1) ATE360240T1 (en)
DE (1) DE602004005926D1 (en)
PL (1) PL207321B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011035452A3 (en) * 2009-09-28 2011-05-19 Moreno Valenzuela Jose Antonio Eye-blinking sensor device that can be used to prevent and to draw attention to states of drowsiness
CN113790804A (en) * 2021-09-07 2021-12-14 哈尔滨工业大学（深圳） Fatigue driving monitoring and reminding device and method based on intermediate infrared detector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402109A (en) * 1993-04-29 1995-03-28 Mannik; Kallis H. Sleep prevention device for automobile drivers
WO2002025615A1 (en) * 2000-09-20 2002-03-28 Eyeswide Ltd. Alerting device
WO2002045044A1 (en) * 2000-11-28 2002-06-06 Smartspecs, L.L.C. Integrated method and system for communication
WO2002099766A1 (en) * 2001-06-04 2002-12-12 Politechnika Warszawska Device to signal the moment of falling asleep

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402109A (en) * 1993-04-29 1995-03-28 Mannik; Kallis H. Sleep prevention device for automobile drivers
WO2002025615A1 (en) * 2000-09-20 2002-03-28 Eyeswide Ltd. Alerting device
WO2002045044A1 (en) * 2000-11-28 2002-06-06 Smartspecs, L.L.C. Integrated method and system for communication
WO2002099766A1 (en) * 2001-06-04 2002-12-12 Politechnika Warszawska Device to signal the moment of falling asleep

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011035452A3 (en) * 2009-09-28 2011-05-19 Moreno Valenzuela Jose Antonio Eye-blinking sensor device that can be used to prevent and to draw attention to states of drowsiness
CN113790804A (en) * 2021-09-07 2021-12-14 哈尔滨工业大学（深圳） Fatigue driving monitoring and reminding device and method based on intermediate infrared detector
CN113790804B (en) * 2021-09-07 2023-10-31 哈尔滨工业大学（深圳） Fatigue driving monitoring reminding device and method based on mid-infrared detector

Also Published As

Publication number Publication date
PL361410A1 (en) 2005-01-24
PL207321B1 (en) 2010-11-30
ATE360240T1 (en) 2007-05-15
DE602004005926D1 (en) 2007-05-31
EP1501061B1 (en) 2007-04-18

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