WO2022100981A1 - An access control system for authorized and symptom-free persons - Google Patents

An access control system for authorized and symptom-free persons Download PDF

Info

Publication number
WO2022100981A1
WO2022100981A1 PCT/EP2021/079321 EP2021079321W WO2022100981A1 WO 2022100981 A1 WO2022100981 A1 WO 2022100981A1 EP 2021079321 W EP2021079321 W EP 2021079321W WO 2022100981 A1 WO2022100981 A1 WO 2022100981A1
Authority
WO
WIPO (PCT)
Prior art keywords
person
control system
access control
optical sensor
sensing arrangement
Prior art date
Application number
PCT/EP2021/079321
Other languages
French (fr)
Inventor
Roy FORSLUND
Fredrik MALMSTEN
Thomas PETIG
Original Assignee
Rths Ab
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 Rths Ab filed Critical Rths Ab
Publication of WO2022100981A1 publication Critical patent/WO2022100981A1/en

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/30—Individual registration on entry or exit not involving the use of a pass
    • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/37—Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0816—Measuring devices for examining respiratory frequency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6888—Cabins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7271—Specific aspects of physiological measurement analysis
    • A61B5/7282—Event detection, e.g. detecting unique waveforms indicative of a medical condition
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/107—Static hand or arm
    • G06V40/117—Biometrics derived from hands
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1312—Sensors therefor direct reading, e.g. contactless acquisition
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/14—Vascular patterns
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
    • G07C9/00904—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses for hotels, motels, office buildings or the like
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/10—Movable barriers with registering means
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/63—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/70—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for mining of medical data, e.g. analysing previous cases of other patients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1126—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb using a particular sensing technique
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • A61B5/1172—Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • A61B5/1176—Recognition of faces
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
    • G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle

Definitions

  • the identification check may comprise a set of biometric identification data values of persons authorized for access.
  • authorized person can be a person that is allowed to enter, as in an office building. It can also mean anyone except people explicitly not allowed to enter, as in a passport control or an arena.
  • the illumination means is arranged to illuminate the body part with two, four, or, preferably, six specific wavelengths. This can reveal different biometric data since different wavelengths penetrate human skin at different levels.
  • at least one specific wavelength is within any of the visible spectrum, the infrared spectrum, and the ultraviolet spectrum.
  • at least one specific wavelength is between 600-700 nm, preferably between 640-680 nm, and more preferably about 660 nm, and at least another specific wavelength is between 800-1000 nm, preferably between 850-890 nm, and more preferably about 870 nm.
  • Light comprising specific wavelengths within the red/green spectrum is typically reflected at the surface of human skin.
  • the method further comprises contactlessly obtaining, via a first contactless optical sensing arrangement comprising a first optical sensor, a body temperature of the person, wherein the vital data comprises the body temperature.
  • the disclosed access control system 100 can be used as a real time health scanner using automated scanning with no surface touch.
  • the system enables a safer way for people to meet, travel, and enjoy things together.
  • the system can e.g. detect symptoms of COVID-19 and other possible infections in just a few seconds.
  • a symptom can be abnormal vital parameters.
  • the disclosed system can measure the five following vital parameters of a person for a highly sensitive and accurate measurement of symptoms of disease.
  • Figures 1 , 2A and 2B show examples of the disclosed access control system 100 arranged to obtain biometric identification data of a person, to obtain vital data of the person, and to allow access for the person if he/she passes a health test and passes an identification check.
  • the system comprises a second contactless optical sensing arrangement 120 arranged to obtain biometric identification data and vital data of the person.
  • the second sensing arrangement 120 comprises illumination means 122 arranged to illuminate at least one body part of the person with a plurality of specific wavelengths of light and a second optical sensor 121 arranged to capture reflected light from the at least one illuminated body part.
  • the biometric identification data is based on the captured reflected light.
  • the at least one illuminated body part may comprise any of a hand and a wrist. This can mean a part/section of the hand and/or of the wrist, or the whole hand and/or wrist.
  • the biometric identification data may comprise any of vein pattern, artery pattern, and skin pattern.
  • the set of biometric identification data values can, e.g., comprise previously scanned vein patterns of a number of people, such as all employees in an office building.
  • the biometric identification data can comprise other patterns or data for identification purposes.
  • the biometric identification data is based on the captured reflected light from a body part. Such light comprises many parameterizable patterns or similar data that can be used for identification purposes.
  • the second sensing arrangement 120 is arranged to obtain a heart rate of the person from variations over time of the magnitude of at least one of the specific wavelengths of the reflected light.
  • the vital data comprises the heart rate.
  • the heartbeat of a person causes many kinds of motion with a cyclical nature, such as the slight movement at the point on the wrist where pulse can be measured by touch. Such cyclical movement has a period commonly between 0.5 and 2 seconds.
  • Relative movement of blood through a vein e.g., can be indicated as amplitude variations of the reflected light at a single specific wavelength.
  • a plurality of wavelengths can also be averaged. Analyzing the cyclical nature of the amplitude variations can therefore provide the heart rate of the person.
  • this measurement is captured over about ten seconds to capture accurate data.
  • Figures 3-6 show various views of an example second contactless optical sensing arrangement 120. More specifically, Figure 3 shows the whole sensor with a transparent lid 301.
  • the second optical sensing arrangement 120 comprises a reflector 425 arranged to direct the light from the illumination means towards the illuminated body part such that it is reflected to the second optical sensor 121.
  • Figure 4 shows an example reflector arrangement 425 arranged under the lid in Figure 3. The reflector facilitates equal illumination of the illuminated body part for the specific wavelengths, from the point of view of the second optical sensor.
  • the method describes aspects of the above disclosed techniques for allowing ingress to an authorized person showing no symptoms of infectious disease and sickness by the disclosed systems.
  • the storage medium 1030 may also comprise persistent storage, which, for example, can be any single one or combination of magnetic memory, optical memory, solid state memory or even remotely mounted memory. This storage medium may be configured to store one or more sets of configuration settings for the system 100.
  • Figure 11 illustrates a computer readable medium 1110 carrying a computer program comprising program code means 1120 for performing the methods illustrated in Fig 9 and/or for executing the various functions discussed above, when said program product is run on a computer.
  • the computer readable medium and the code means may together form a computer program product 1100.
  • This computer program product may comprise one or more sets of configurations for controlling the system 100 discussed above to perform the methods disclosed herein.

Abstract

An access control system (100) arranged to obtain biometric identification data of a person, to obtain vital data of the person, and to allow access for the person if he/she passes a health test and passes an identification check. The system comprises a second contactless optical sensing arrangement (120) 5 arranged to obtain biometric identification data and vital data of the person. The second sensing arrangement (120) comprises illumination means (122) arranged to illuminate at least one body part of the person with a plurality of specific wavelengths of light and a second optical sensor (121) arranged to capture reflected light from the at least one illuminated body part. The biometric identification data is based on the captured reflected light. The health test comprises comparing the obtained vital data to a pre-determined set of vital data values, and the identification check comprises comparing the obtained biometric identification data to a pre-determined set of biometric identification data values.

Description

TITLE
AN ACCESS CONTROL SYSTEM FOR AUTHORIZED AND SYMPTOM- FREE PERSONS
TECHNICAL FIELD
The present disclosure relates to access control system for allowing ingress to a person showing no symptoms of infectious disease and sickness. The system also makes use of biometric identification data to identify and allow access to authorized persons.
BACKGROUND
Considering recent pandemic and epidemic spreads of infectious diseases like SARS, MERS, and COVID-19, finding ways of limiting the spread is crucial. Since symptoms of disease may not be detected by the infected individual before he or she has become contagious, one viable option is to automatically scan vital signs of people entering locations where people move, meet, and gather, such as offices, airports, and arenas, and denying entry to people showing any signs of infectious disease and sickness. Automatic scanning, however, faces many challenges regarding accuracy, speed, and cost.
Checking the identity of a person entering these locations can be a required compliment to checking vital signs. Although identity cards, near-field communication tags, passwords etc. can be used for determining the identity of the person, their level of security is limited since they can be lost or stolen. Identification means using biometric data, on the other hand, can be intrinsically more secure. Biometric data commonly used for identification are fingerprints, iris scans, and facial recognition. Fingerprint scanning, however, often require physical contact between the finger and the scanner. This is unhygienic and is counterproductive to the prevention of spreading diseases. This can be alleviated by using disinfectants, which may not be able to guarantee total disinfection and is an inconvenience and expense. Iris scanning is inconvenient and facial recognition may require extensive computational effort and computational training. Facial recognition may further feel invasive to the person.
Therefore, there is a need for improved access control systems for allowing access to an authorized person deemed free from infectious disease and sickness.
SUMMARY
It is an object of the present disclosure to provide improved access control systems for allowing access to an authorized person deemed free from infectious disease and sickness, that are, i.a., fast, convenient hygienic, accurate, and that has a high level of security.
This object is at least in part obtained by an access control system arranged to obtain biometric identification data of a person, to obtain vital data of the person, and to allow access for the person if he/she passes a health test and passes an identification check. The system comprises a second contactless optical sensing arrangement arranged to obtain biometric identification data and vital data of the person. The second sensing arrangement comprises illumination means arranged to illuminate at least one body part of the person with a plurality of specific wavelengths of light and a second optical sensor arranged to capture reflected light from the at least one illuminated body part. The biometric identification data is based on the captured reflected light. The health test comprises comparing the obtained vital data to a pre-determined set of vital data values, and the identification check comprises comparing the obtained biometric identification data to a pre-determined set of biometric identification data values.
The access control system could be used in any location where people move, meet, and gather. The system is easy to install and use, and will not only increase the safety for people, but it will also increase the feeling of being safe for the people on the location. It will make people more relaxed and able to enjoy the event, the game, the trip, the food, or sight, instead of worrying about their surroundings. A few example locations are museums, sporting, events, malls, education, travel, restaurants, concerts, conferences, and parliaments.
The disclosed access control system can be used as a real time health scanner using automated scanning with no surface touch. The system enables a safer way for people to meet, travel, and enjoy things together. The system can e.g. detect symptoms of COVID-19 and other possible infections in just a few seconds.
The access control system may comprise a gate or the like to temporarily block ingress. Alternatively, or in combination, the access control system may comprise a light arranged to indicate if a person should be allowed access. The light can, e.g., switch between a green and red light to indicate if a person should be allowed access or not.
The identification check may comprise a set of biometric identification data values of persons authorized for access. Such authorized person can be a person that is allowed to enter, as in an office building. It can also mean anyone except people explicitly not allowed to enter, as in a passport control or an arena.
According to aspects, the access control system comprises a first contactless optical sensing arrangement arranged to obtain a body temperature of the person, where the first sensing arrangement comprises a first optical sensor, and where the vital data comprises the body temperature. In general, an above normal body temperature can be symptoms of many infections, which makes it relevant to monitor the body temperature in the health test.
According to aspects, the at least one illuminated body part comprises any of a hand and a wrist. The hand and wrist of a person are convenient body parts to provide to the access control system for providing biometric identification data without requiring physical contact.
According to aspects, the biometric identification data comprises any of vein pattern, artery pattern, and skin pattern, such as palm print, i.e. principal lines, secondary lines (wrinkles), and epidermal ridges. As such, the set of biometric identification data values can, e.g., comprise previously scanned vein patterns of a number of people, such as all employees in an office building.
According to aspects, the illumination means is arranged to illuminate the body part with two, four, or, preferably, six specific wavelengths. This can reveal different biometric data since different wavelengths penetrate human skin at different levels. According to further aspects, at least one specific wavelength is within any of the visible spectrum, the infrared spectrum, and the ultraviolet spectrum. According to other aspects, at least one specific wavelength is between 600-700 nm, preferably between 640-680 nm, and more preferably about 660 nm, and at least another specific wavelength is between 800-1000 nm, preferably between 850-890 nm, and more preferably about 870 nm. Light comprising specific wavelengths within the red/green spectrum is typically reflected at the surface of human skin. This reflection can therefore be used to reveal skin pattern, such as palm print, i.e. principal lines, secondary lines (wrinkles), and epidermal ridges. Infrared light on the other hand, tends to penetrate into the skin a few millimeters before it is reflected. Therefore, infrared reflections can be used to reveal blood vessel patterns, i.e. arteries, arterioles, capillaries, venules, and veins. Using different specific wavelengths that penetrate the skin differently can therefore provide biometric data for different layers of the body part. Such biometric data can be used as unique identification means for a person.
According to aspects, the second sensing arrangement is arranged to obtain a blood oxygen saturation of the person from magnitudes of at least two of the specific wavelengths of the reflected light, and wherein the vital data comprises the blood oxygen saturation. A low oxygen saturation could be a symptom of a COVID -19 infection or other infections.
According to aspects, the second sensing arrangement is arranged to obtain a heart rate of the person from variations over time of the magnitude of at least one of the specific wavelengths of the reflected light, and wherein the vital data comprises the heart rate. An increased pulse and heart rate are common findings in infectious diseases. According to aspects, the second sensing arrangement is arranged to obtain a breathing rate of the person from variations over time of the magnitude of at least one of the specific wavelengths of the reflected light, and wherein the vital data comprises the breathing rate. An increased breathing frequency could be a symptom of an ongoing infection like COVID-19.
According to aspects, the second sensing arrangement is arranged to obtain a blood pressure of the person from a comparison of variations over time of the magnitude of at least one of the specific wavelengths of the reflected light at different locations of the illuminated body part, and wherein the vital data comprises the blood pressure. A high blood pressure is quite common but can be a symptom in an infected subject.
The disclosed system can read out biometric identification data from the same sensor that can be used for obtaining vital parameters. This simplifies the system and saves costs. Furthermore, any of the body temperature, heart rate, breathing rate, blood oxygen saturation, and blood pressure can be used to determine if the person is alive. This adds another layer of security when biometric identification alone is not be secure enough. For example, fingerprints may be replicated or be detached.
According to aspects, the first optical sensor comprises a thermal camera. According to further aspects, the body temperature is obtained from the face of the person.
According to aspects, a breathing rate of the person is obtained from measuring temperature differences of the face resulting from inhaled and/or exhaled air by the person, and wherein the vital data comprises the breathing rate. This way of obtaining the breathing rate can be used as an alternative to or a combination with the way described above. A weighted average between the two different measurements may, e.g., be used.
According to aspects, the first optical sensor is directed to body part different from the illuminated body part, and wherein a blood pressure of the person is obtained from a measured time delay between an observation of a movement by the first optical sensor and an observation of a movement by the second optical sensor, wherein both movements are movements of respective body parts resulting from the same heartbeat, and wherein the vital data comprises the blood pressure. This way of obtaining the blood pressure can be used as an alternative to or in combination with the way described above. A weighted average between the two different measurements may, e.g., be used.
According to aspects, the access control system further comprises a temperature reference device arranged to provide a reference temperature to the first optical sensor. The reference device can, e.g., be a heat plate arranged to provide a constant surface temperature. The reference device is used for calibrating the first optical sensor. This provides more accurate readings for the first optical sensor.
According to aspects, the second optical sensor comprises a camera.
According to aspects, the access control system further comprises a display means arranged to show a live feed of the person and to show guiding means arranged to guide the person to an optimal distance between the person and the first optical sensor. Optimal distances are distances allowing reliable sensor observations. The display means therefore improves accuracy of the sensor.
According to aspects, the access control system further comprises a display means arranged to show guiding means arranged to guide the person to an optimal distance between the illuminated body part of the person and the second optical sensor. The display means therefore improves accuracy of the sensor.
According to aspects, the first optical sensing arrangement comprises ranging means arranged to obtain a distance between the person and the first optical sensor. According to further aspects, the second optical sensing arrangement comprises ranging means arranged to obtain a distance between the illuminated body part of the person and the second optical sensor. According to other aspects, the ranging means comprises a time-of-flight camera arrangement. This is a cost-effective and accurate way of obtaining a range. According to aspects, the second optical sensing arrangement comprises a reflector arranged to direct the light from the illumination means towards the illuminated body part such that it is reflected into the second optical sensor. The reflector facilitates equal illumination of the illuminated body part for the specific wavelengths, from the point of view of the second optical sensor.
According to aspects, the access control system further comprises a radar arranged to measure movement of a body part of the person. This movement measurement may replace other measurements using relative movements of the body or complement them, such as measurements obtaining a breathing rate of the person, obtaining heart rate of the person, and/or obtaining blood pressure of the person.
The above object is also at least in part obtained by a method for obtaining biometric identification data of a person, obtaining vital data of the person, and for allowing access for the person if he/she passes a health test and passes an identification check. The method comprises: contactlessly obtaining, via a second contactless optical sensing arrangement, biometric identification data and vital data of the person, wherein the second sensing arrangement comprises illumination means arranged to illuminate at least one body part of the person with a plurality of specific wavelengths of light and a second optical sensor arranged to capture reflected light from the at least one illuminated body part, wherein the biometric identification data is based on the captured reflected light; comparing, as part of the health test, the obtained vital data to a predetermined set of vital data values; and comparing, as part of the identification check, the obtained biometric identification data to a pre-determined set of biometric identification data values.
According to aspects, the vital data comprises any of the following vital parameters: heart rate, blood oxygen saturation, pulse, and blood pressure, and wherein the method further comprises: obtaining, via the second contactless optical sensing arrangement, the vital parameters comprised in the vital data.
According to aspects, the method further comprises contactlessly obtaining, via a first contactless optical sensing arrangement comprising a first optical sensor, a body temperature of the person, wherein the vital data comprises the body temperature.
The methods disclosed herein are associated with the same advantages as discussed above in connection to the different measurement devices and/or systems. There are furthermore disclosed herein control units adapted to control some of the operations described herein.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the element, apparatus, component, means, step, etc." are to be interpreted openly as referring to at least one instance of the element, apparatus, component, means, step, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated. Further features of, and advantages with, the present invention will become apparent when studying the appended claims and the following description. The skilled person realizes that different features of the present invention may be combined to create embodiments other than those described in the following, without departing from the scope of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
The present disclosure will now be described in more detail with reference to the appended drawings, where
Figure 1 shows an example access control system,
Figures 2A and 2B show example access control systems,
Figures 3-6 show different views of an example second contactless optical sensor arrangement, Figure 7 shows an example first contactless optical sensor arrangement,
Figure 8 shows an example temperature reference device,
Figure 9 is a flow chart illustrating methods,
Figure 10 schematically illustrates a control unit, and
Figure 11 shows a computer program product.
DETAILED DESCRIPTION
Aspects of the present disclosure will now be described more fully with reference to the accompanying drawings. The different devices and methods disclosed herein can, however, be realized in many different forms and should not be construed as being limited to the aspects set forth herein. Like numbers in the drawings refer to like elements throughout.
The terminology used herein is for describing aspects of the disclosure only and is not intended to limit the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
There is herein disclosed an access control system 100 that could be used in any location where people move, meet, and gather. The system is easy to install and use, and will not only increase the safety for people, but it will also increase the feeling of being safe for the people on the location. It will make people more relaxed and able to enjoy the event, the game, the trip, the food, or sight, instead of worrying about their surroundings. A few example locations are museums, sporting, events, malls, education, travel, restaurants, concerts, conferences, and parliaments.
The disclosed access control system 100 can be used as a real time health scanner using automated scanning with no surface touch. The system enables a safer way for people to meet, travel, and enjoy things together. The system can e.g. detect symptoms of COVID-19 and other possible infections in just a few seconds. A symptom can be abnormal vital parameters. According to some aspects, the disclosed system can measure the five following vital parameters of a person for a highly sensitive and accurate measurement of symptoms of disease.
- Breathing rate. An increased breathing frequency could be a symptom of an ongoing infection like COVID-19.
- Oxygen Saturation. A low oxygen saturation could be a symptom of a COVID -19 infection or other infections.
- Body Temperature. An above normal body temperature can be symptoms of many infections.
- Heart rate. An increased pulse and heart rate are common findings in infectious diseases.
- Blood pressure. A high blood pressure is quite common but can be a symptom in an infected subject.
The disclosed access control system 100 can further obtain biometric identification data of the person for determining the identity of the person. Although identity cards, near-field communication tags, passwords etc. can be used for determining the identity of the person, their level of security is limited since they can be lost or stolen. Identification means using biometric data, on the other hand, can be intrinsically more secure. Biometric data commonly used for identification are fingerprints, iris scans, and facial recognition. Fingerprint scanning, however, often require physical contact between the finger and the scanner. This is unhygienic and is counterproductive to the prevention of contagion. This can be alleviated by using disinfectants, which may not be able to guarantee total disinfection and is an inconvenience and expense. Iris scanning is inconvenient and facial recognition may require extensive computational effort and computational training. Facial recognition may further feel invasive to the person.
Figures 1 , 2A and 2B show examples of the disclosed access control system 100 arranged to obtain biometric identification data of a person, to obtain vital data of the person, and to allow access for the person if he/she passes a health test and passes an identification check. The system comprises a second contactless optical sensing arrangement 120 arranged to obtain biometric identification data and vital data of the person. The second sensing arrangement 120 comprises illumination means 122 arranged to illuminate at least one body part of the person with a plurality of specific wavelengths of light and a second optical sensor 121 arranged to capture reflected light from the at least one illuminated body part. The biometric identification data is based on the captured reflected light.
The access control system may comprise a gate 150 or the like to temporarily block ingress. Alternatively, or in combination, the access control system may comprise a light arranged to indicate if a person should be allowed access. The light can, e.g., switch between a green and red light to indicate if a person should be allowed access or not.
The identification check may comprise a set of biometric identification data values of persons authorized for access. Such authorized person can be a person that is allowed to enter, as in an office building. It can also mean anyone except people explicitly not allowed to enter, as in a passport control or an arena.
The system 100 may comprise a first contactless optical sensing arrangement 110 arranged to obtain a body temperature of the person, where the first sensing arrangement 110 comprises a first optical sensor 111 , and where the vital data comprises the body temperature.
The set of vital data values in the health test can comprise ranges of allowable values. For example, the comparison of body temperature can comprise checking if the obtained value is within 36.5-37.5 °C. If the obtained body temperature is within this range, the person passes the health test, or at least partly if more vital parameters are observed.
The at least one illuminated body part may comprise any of a hand and a wrist. This can mean a part/section of the hand and/or of the wrist, or the whole hand and/or wrist. Furthermore, the biometric identification data may comprise any of vein pattern, artery pattern, and skin pattern. As such, the set of biometric identification data values can, e.g., comprise previously scanned vein patterns of a number of people, such as all employees in an office building. The biometric identification data can comprise other patterns or data for identification purposes. In general, the biometric identification data is based on the captured reflected light from a body part. Such light comprises many parameterizable patterns or similar data that can be used for identification purposes.
Different wavelengths penetrate human skin at different levels, which can reveal different biometric data. Therefore, the illumination means 122 may be arranged to illuminate the body part with two, four, or, preferably, six specific wavelengths. Preferably, at least one specific wavelength is within any of the visible spectrum, the infrared spectrum, and the ultraviolet spectrum. Even more preferably, at least one specific wavelength is within the blue/green spectrum and at least another specific wavelength is within the infrared spectrum. According to aspects, at least one specific wavelength is between 600-700 nm, preferably between 640-680 nm, and more preferably about 660 nm, and at least another specific wavelength is between 800-1000 nm, preferably between 850-890 nm, and more preferably about 870 nm.
Light comprising specific wavelengths within the red/green spectrum is typically reflected at the surface of human skin. This reflection can therefore be used to reveal skin pattern, such as palm print, i.e. principal lines, secondary lines (wrinkles), and epidermal ridges. Infrared light on the other hand, tends to penetrate into the skin a few millimeters before it is reflected. Therefore, infrared reflections can be used to reveal blood vessel patterns, i.e. arteries, arterioles, capillaries, venules, and veins. Using different specific wavelengths that penetrate the skin differently can therefore provide biometric data for different layers of the body part. Such biometric data can be used as unique identification means for a person.
According to aspects, the second optical sensor 121 comprises a camera. In an example embodiment, the camera is arranged to capture an image at a rate of 400 Hz. Four specific wavelengths are used, and the illumination means 122 is arranged to cycle through each of the four wavelengths at a rate of 400 Hz. Consequently, a picture of one of the specific wavelengths is captured at a rate of 100 Hz. Each specific wavelength is transmitted as a square pulse with a duration 0.625 milliseconds. Consequently, the illumination means is transmitting light at duty cycle of 25%, i.e. no light is emitted during 75% of the time, and each specific wavelength has a duty cycle of 6.25%. Furthermore, the camera is triggered to capture an image during a pulse. This way, high illumination for each specific wavelength can be obtained while keeping heating effects at a minimum. Other pulse durations and repetition rates are also possible. Constant illumination is also possible, one specific wavelength at a time or all at once. Constant illumination of all wavelengths at once may be combined with arranging different filters in in front the camera, each filter being arranged to allow only one of the specific wavelengths to pass. It is also possible to have a plurality of cameras. In that case, each camera may have a different filter.
According to aspects, the camera of the second optical sensor 121 is a black and white camera. If only a single specific wavelength is transmitted at a time, there is no need to sort the light received by the camera sensor by frequency in the camera sensor or the camera sensor output in order to extract the desired wavelength. Thus, a black and white camera may be used. An example resolution of the camera is 640 by 480 pixels.
As mentioned, the access control system 100, can, according to aspects, measure blood oxygen saturation of the person. In that case, the second sensing arrangement 120 is arranged to obtain a blood oxygen saturation of the person from magnitudes of at least two of the specific wavelengths of the reflected light, and the vital data comprises the blood oxygen saturation. The illuminated body part is illuminated with at least two specific wavelengths and the light reflected by the body part is captured with the second optical sensor 121. The magnitudes of each specific wavelength in the reflected light are then compared to an absorption spectrum of hemoglobin with and without oxygen to determine the blood oxygen saturation. In other words, the measured magnitudes are compared to expected magnitudes arising from a specific saturation of blood oxygen. Preferably, this measurement is averaged over a few seconds to capture accurate data.
According to aspects, the second sensing arrangement 120 is arranged to obtain a heart rate of the person from variations over time of the magnitude of at least one of the specific wavelengths of the reflected light. In that case, the vital data comprises the heart rate. The heartbeat of a person causes many kinds of motion with a cyclical nature, such as the slight movement at the point on the wrist where pulse can be measured by touch. Such cyclical movement has a period commonly between 0.5 and 2 seconds. Relative movement of blood through a vein, e.g., can be indicated as amplitude variations of the reflected light at a single specific wavelength. A plurality of wavelengths can also be averaged. Analyzing the cyclical nature of the amplitude variations can therefore provide the heart rate of the person. Preferably, this measurement is captured over about ten seconds to capture accurate data.
According to further aspects, the second sensing arrangement 120 is arranged to obtain a breathing rate of the person from variations over time of the magnitude of at least one of the specific wavelengths of the reflected light. In that case, the vital data comprises the breathing rate. Similar to the heart rate, the breathing rate can be obtained by analyzing amplitude variations of the reflected light of one or more specific wavelengths. The breathing rate can reveal itself by cyclical motion with a period commonly between 2 and 10 seconds.
According to other aspects, the second sensing arrangement 120 is arranged to obtain a blood pressure of the person from a comparison of variations over time of the magnitude of at least one of the specific wavelengths of the reflected light at different locations of the illuminated body part. In that case, wherein the vital data comprises the blood pressure. Monitoring any type of variation over time for different parts of the body part allows for obtaining a time delay between a propagation of a movement, e.g. a pulse propagation of a blood arising from a heartbeat. This time delay can be used to analyze how much blood has been passed through a certain section during a certain time, which can give the blood pressure of the person.
The present disclosure can read out biometric identification data from the same sensor that can be used for obtaining vital parameters. This simplifies the system and saves costs. Furthermore, any of the body temperature, heart rate, breathing rate, blood oxygen saturation, and blood pressure can be used to determine if the person is alive. This adds another layer of security when biometric identification alone is not be secure enough. For example, fingerprints may be replicated or be detached, and it may be possible to mold a replication of a face.
The access control system 100 comprises, according to aspects, a thermal camera, as is shown in Figure 7. Furthermore, the temperature may be obtained from the face of the person. In that case, the breathing rate of the person can be obtained from measuring temperature differences of the face resulting from inhaled and/or exhaled air by the person, and the vital data comprises the breathing rate. The thermal camera is used to observe the colder and hotter skin areas, compared to the environment, preferably skin areas around the mouth and/or nose of the person. This way of obtaining the breathing rate can be used as an alternative to or a combination with the way described above. A weighted average between the two different measurements may, e.g., be used. It is also possible to obtain the breathing rate from measurements of hot and cold air resulting from respiration and from measurements of relative movement of face. These two ways can be a compliment or alternative.
If the first sensor arrangement is some kind of camera, e.g., a thermal camera, and is pointed at the face of the person, the blood pressure can be obtained using the second sensor arrangement together with the first sensor arrangement. In that case, the first optical sensor 111 is directed to body part different from the illuminated body. The blood pressure of the person is obtained from a measured time delay between an observation of a movement by the first optical sensor 111 and an observation of a movement by the second optical sensor 121. Both movements are movements of respective body parts resulting from the same heartbeat. Furthermore, the vital data comprises the blood pressure. Movement related to the heartbeat in the face can be observed by the first sensor arrangement. Monitoring any type of variation over time in the signals received by the second sensor arrangement can be correlated to the movement observed by the first sensor arrangement. The time delay between the observations can then provide the blood pressure of the person. This way of obtaining the blood pressure can be used as an alternative to or in combination with the way described above. A weighted average between the two different measurements may, e.g., be used.
The access control system 100 may comprise a temperature reference device 130 arranged to provide a reference temperature to the first optical sensor 111. The reference device 130 can, e.g., be a heat plate arranged to provide a constant surface temperature, as is shown in Figure 8. The reference device is used for calibrating the first optical sensor 111. Therefore, the reference device may be arranged such that it is in the field of view of the first optical sensor, e.g. at all times or when there is no person using the access control system. Calibration can, e.g., occur once a minute, between every person using the system or something similar.
The access control system 100 may comprise a display means 140,140” arranged to show a live feed of the person and to show guiding means arranged guide to the person to an optimal distance between the person and the first optical sensor 111. The guiding means can for example comprise a rectangle around the displayed face of the person that changes color to indicate distance. Green can indicate optimal distances and red can indicate incorrect distances. Optimal distances are distances allowing reliable sensor observations. The display means may comprise a monitor, like a television monitor, but it can also be a light strip or something similar.
The display means 140, 140’ may alternatively, or in combination of, be arranged to show guiding means arranged to guide the person to an optimal distance between the illuminated body part of the person and the second optical sensor 121. These guiding means may also utilize different colors. In the example of Figure 2B, the display means comprises three displays 140, 140’, and 140”. The first optical sensing arrangement 110 may comprise ranging means 113 arranged to obtain a distance between the person and the first optical sensor, and the second optical sensing arrangement 120 may comprise ranging means 123 arranged to obtain a distance between the illuminated body part of the and the second optical sensor. These ranging means 113, 123 may comprises a time-of-flight camera arrangement. According to examples, the ranging means 113, 123 may also comprise any of a laser telemeter, an ultrasonic distance sensor, a radar sensor, or a stereo camera.
Figures 3-6 show various views of an example second contactless optical sensing arrangement 120. More specifically, Figure 3 shows the whole sensor with a transparent lid 301. According to aspects, the second optical sensing arrangement 120 comprises a reflector 425 arranged to direct the light from the illumination means towards the illuminated body part such that it is reflected to the second optical sensor 121. Figure 4 shows an example reflector arrangement 425 arranged under the lid in Figure 3. The reflector facilitates equal illumination of the illuminated body part for the specific wavelengths, from the point of view of the second optical sensor.
Figures 5 and 6 show the reflector arrangement 425 together with illumination means 122 and the second optical sensor 121 . More specifically, this example comprises six different types of diodes emitting respective specific wavelengths, and four different types of diode capsules (three different types of diodes utilize the same type of capsule). The number of diodes and their placement have been optimized in conjunction with the reflector plate 425. The optimization tries to achieve evenly distributed illumination of the illuminated body part for the specific wavelengths, from the point of view of the second optical sensor. There may be different amounts of diodes for one specific wavelength compared to another wavelength since the different diodes may have different intensities. The access control system 100 may comprise a radar 160 arranged to measure movement of a body part of the person. This movement measurement may replace other measurements using relative movements of the body or complement them, such as measurements obtaining a breathing rate of the person, obtaining heart rate of the person, and/or obtaining blood pressure of the person.
A radar will in general perform measurements by transmitting radio waves which are reflected by objects in the environment. The reflected radio waves are then received by the radar and signal processing methods are applied to determine the location and velocity of the objects. As an example, the radar 160 may measure the distance to a body part by measuring the time between transmission of radio waves and reception of the reflected radio waves. A movement of a body part may then be detected through measuring the distance to the body part at different points in time. As another example, the radar 160 may measure the movement of a body part by measuring the Doppler shift of the reflected radio waves.
Figure 9 is a flowchart illustrating methods. There is illustrated a method for obtaining biometric identification data of a person, obtaining vital data of the person, and for allowing access for the person if he/she passes a health test and passes an identification check, the method comprising: contactlessly obtaining S2, via a second contactless optical sensing arrangement 120, biometric identification data and vital data of the person, wherein the second sensing arrangement 120 comprises illumination means 122 arranged to illuminate at least one body part of the person with a plurality of specific wavelengths of light and a second optical sensor 121 arranged to capture reflected light from the at least one illuminated body part, wherein the biometric identification data is based on the captured reflected light; comparing S3, as part of the health test, the obtained vital data to a predetermined set of vital data values; and comparing S4, as part of the identification check, the obtained biometric identification data to a pre-determined set of biometric identification data values.
Thus, the method describes aspects of the above disclosed techniques for allowing ingress to an authorized person showing no symptoms of infectious disease and sickness by the disclosed systems.
According to aspects, the vital data comprises any of the following vital parameters: heart rate, blood oxygen saturation, pulse, and blood pressure. In that case, the method may further comprise: obtaining S21 , via the second contactless optical sensing arrangement 120, the vital parameters comprised in the vital data.
According to aspects, the method further comprises contactlessly obtaining S1 , via a first contactless optical sensing arrangement 110 comprising a first optical sensor 111 , a body temperature of the person, wherein the vital data comprises the body temperature.
Figure 10 schematically illustrates, in terms of a number of functional units, the general components of a control unit 1060 which may be part of the system 100. Processing circuitry 1010 is provided using any combination of one or more of a suitable central processing unit CPU, multiprocessor, microcontroller, digital signal processor DSP, etc., capable of executing software instructions stored in a computer program product, e.g. in the form of a storage medium 1030. The processing circuitry 1010 may further be provided as at least one application specific integrated circuit ASIC, or field programmable gate array FPGA.
Particularly, the processing circuitry 1010 is configured to cause the system 100 to perform a set of operations, or steps, such as the methods discussed in connection to Figure 9 and the discussions above, and also to set operating parameters of the system according to the discussions above. For example, the storage medium 1030 may store the set of operations, and the processing circuitry 1010 may be configured to retrieve the set of operations from the storage medium 1030 to cause the device to perform the set of operations. The set of operations may be provided as a set of executable instructions. Thus, the processing circuitry 1010 is thereby arranged to execute methods as herein disclosed.
The storage medium 1030 may also comprise persistent storage, which, for example, can be any single one or combination of magnetic memory, optical memory, solid state memory or even remotely mounted memory. This storage medium may be configured to store one or more sets of configuration settings for the system 100.
The control unit 1060 may further comprise an interface 1020 for communications with at least one external device. As such the interface 1020 may comprise one or more transmitters and receivers, comprising analogue and digital components and a suitable number of ports for wireline or wireless communication.
The processing circuitry 1010 controls the general operation of the control unit 1060, e.g., by sending data and control signals to the interface 1020 and the storage medium 1030, by receiving data and reports from the interface 1020, and by retrieving data and instructions from the storage medium 1030.
Figure 11 illustrates a computer readable medium 1110 carrying a computer program comprising program code means 1120 for performing the methods illustrated in Fig 9 and/or for executing the various functions discussed above, when said program product is run on a computer. The computer readable medium and the code means may together form a computer program product 1100. This computer program product may comprise one or more sets of configurations for controlling the system 100 discussed above to perform the methods disclosed herein.

Claims

1. An access control system (100) arranged to obtain biometric identification data of a person, to obtain vital data of the person, and to allow access for the person if he/she passes a health test and passes an identification check, the system (100) comprising a second contactless optical sensing arrangement (120) arranged to obtain biometric identification data and vital data of the person, wherein the second sensing arrangement (120) comprises illumination means (122) arranged to illuminate at least one body part of the person with a plurality of specific wavelengths of light and a second optical sensor (121 ) arranged to capture reflected light from the at least one illuminated body part, wherein the biometric identification data is based on the captured reflected light, wherein the health test comprises comparing the obtained vital data to a predetermined set of vital data values, and wherein the identification check comprises comparing the obtained biometric identification data to a predetermined set of biometric identification data values.
2. The access control system (100) according to claim 1 , comprising a first contactless optical sensing arrangement (110) arranged to obtain a body temperature of the person, the first sensing arrangement (110) comprising a first optical sensor (111 ), wherein the vital data comprises the body temperature.
3. The access control system (100) according to claim 1 or 2, wherein the at least one illuminated body part comprises any of a hand and a wrist.
4. The access control system (100) according to any previous claim, wherein the biometric identification data comprises any of vein pattern, artery pattern, and skin pattern.
5. The access control system (100) according to any previous claim, wherein the illumination means (122) is arranged to illuminate the body part with two, four, or, preferably, six specific wavelengths. 6. The access control system (100) according to any previous claim, wherein at least one specific wavelength is within any of the visible spectrum, the infrared spectrum, and the ultraviolet spectrum.
7. The access control system (100) according to any previous claim, wherein at least one specific wavelength is between 600-700 nm, preferably between 640-680 nm, and more preferably about 660 nm, and at least another specific wavelength is between 800-1000 nm, preferably between 850-890 nm, and more preferably about 870 nm.
8. The access control system (100) according to any previous claim, wherein the second sensing arrangement (120) is arranged to obtain a blood oxygen saturation of the person from magnitudes of at least two of the specific wavelengths of the reflected light, and wherein the vital data comprises the blood oxygen saturation.
9. The access control system (100) according to any previous claim, wherein the second sensing arrangement (120) is arranged to obtain a heart rate of the person from variations over time of the magnitude of at least one of the specific wavelengths of the reflected light, and wherein the vital data comprises the heart rate.
10. The access control system (100) according to any previous claim, wherein the second sensing arrangement (120) is arranged to obtain a breathing rate of the person from variations over time of the magnitude of at least one of the specific wavelengths of the reflected light, and wherein the vital data comprises the breathing rate.
11. The access control system (100) according to any previous claim, wherein the second sensing arrangement (120) is arranged to obtain a blood pressure of the person from a comparison of variations over time of the magnitude of at least one of the specific wavelengths of the reflected light at different locations of the illuminated body part, and wherein the vital data comprises the blood pressure.
12. The access control system (100) according to any of claims 2-11 , wherein the first optical sensor (110) comprises a thermal camera. 13. The access control system (100) according to any of claims 2-12, wherein the body temperature is obtained from the face of the person.
14. The access control system (100) according to claims 12 and 13, wherein a breathing rate of the person is obtained from measuring temperature differences of the face resulting from inhaled and/or exhaled air by the person, and wherein the vital data comprises the breathing rate.
15. The access control system (100) according to any of claims 2-14, wherein the first optical sensor (111 ) is directed to body part different from the illuminated body part, and wherein a blood pressure of the person is obtained from a measured time delay between an observation of a movement by the first optical sensor (111 ) and an observation of a movement by the second optical sensor (121 ), wherein both movements are movements of respective body parts resulting from the same heartbeat, and wherein the vital data comprises the blood pressure.
16. The access control system (100) according to any of claims 2-15, further comprising a temperature reference device (130) arranged to provide a reference temperature to the first optical sensor (111 ).
17. The access control system (100) according to any previous claim, wherein the second optical sensor (121 ) comprises a camera.
18. The access control system (100) according to any of claims 2-17, further comprising a display means (140, 140’, 140”) arranged to show a live feed of the person and to show guiding means arranged to guide the person to an optimal distance between the person and the first optical sensor (111 ).
19. The access control system (100) according to any previous claim, further comprising a display means (140, 140’, 140”) arranged to show guiding means arranged to guide the person to an optimal distance between the illuminated body part of the person and the second optical sensor (121 ).
20. The access control system (100) according to any of claims 2-19, wherein the first optical sensing arrangement (110) comprises ranging means (113) arranged to obtain a distance between the person and the first optical sensor. 21. The access control system (100) according to any previous claim, wherein the second optical sensing arrangement (120) comprises ranging means (123) arranged to obtain a distance between the illuminated body part of the person and the second optical sensor.
22. The access control system (100) according to any of claims 20-21 , wherein the ranging means (113, 123) comprises a time-of-flight camera arrangement.
23. The access control system (100) according to any previous claim, wherein the second optical sensing arrangement (120) comprises a reflector (425) arranged to direct the light from the illumination means towards the illuminated body part such that it is reflected into the second optical sensor
(121 ).
24. The access control system (100) according to any previous claim, further comprising a radar (160) arranged to measure movement of a body part of the person.
25. A method for obtaining biometric identification data of a person, obtaining vital data of the person, and for allowing access for the person if he/she passes a health test and passes an identification check, the method comprising: contactlessly obtaining (S2), via a second contactless optical sensing arrangement (120), biometric identification data and vital data of the person, wherein the second sensing arrangement (120) comprises illumination means
(122) arranged to illuminate at least one body part of the person with a plurality of specific wavelengths of light and a second optical sensor (121 ) arranged to capture reflected light from the at least one illuminated body part, wherein the biometric identification data is based on the captured reflected light; comparing (S3), as part of the health test, the obtained vital data to a predetermined set of vital data values; and comparing (S4), as part of the identification check, the obtained biometric identification data to a pre-determined set of biometric identification data values. 26. The method according to claim 25, wherein the vital data comprises any of the following vital parameters: heart rate, blood oxygen saturation, pulse, and blood pressure, and wherein the method further comprises: obtaining (S21 ), via the second contactless optical sensing arrangement (120), the vital parameters comprised in the vital data.
27. The method according to claim 25 or 26, further comprising contactlessly obtaining (S1 ), via a first contactless optical sensing arrangement (110) comprising a first optical sensor (111 ), a body temperature of the person, wherein the vital data comprises the body temperature.
PCT/EP2021/079321 2020-11-12 2021-10-22 An access control system for authorized and symptom-free persons WO2022100981A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE2030339-2 2020-11-12
SE2030339A SE2030339A1 (en) 2020-11-12 2020-11-12 An access control system for authorized and symptom-free persons

Publications (1)

Publication Number Publication Date
WO2022100981A1 true WO2022100981A1 (en) 2022-05-19

Family

ID=78414641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/079321 WO2022100981A1 (en) 2020-11-12 2021-10-22 An access control system for authorized and symptom-free persons

Country Status (2)

Country Link
SE (1) SE2030339A1 (en)
WO (1) WO2022100981A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024065657A1 (en) * 2022-09-30 2024-04-04 Telefonaktiebolaget Lm Ericsson (Publ) Access control method and access control apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080295152A1 (en) * 2007-05-25 2008-11-27 Laurel Precision Machines Co., Ltd. Safety management system
US20170014087A1 (en) * 2014-03-31 2017-01-19 Koninklijke Philips N.V. Device, system and method for determining vital signs of a subject
KR20170108735A (en) * 2016-03-17 2017-09-27 (주)솔루션즈온넷 Admission control system
CN111564224A (en) * 2020-04-26 2020-08-21 中控华运（厦门）集成电路有限公司 Intelligent monitoring system with health monitoring function and implementation method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8224034B2 (en) * 2006-02-02 2012-07-17 NL Giken Incorporated Biometrics system, biologic information storage, and portable device
SG168420A1 (en) * 2009-07-10 2011-02-28 M2M Technologies Pte Ltd System and method for access control
EP3061074B1 (en) * 2013-10-21 2021-03-17 Sicpa Holding Sa A security checkpoint
CN107066988A (en) * 2017-05-02 2017-08-18 湖南大拓三维数字技术有限公司 A kind of palm infrared body temperature measurement and identification system
CN110164016A (en) * 2019-06-04 2019-08-23 哈尔滨工程大学 A kind of green and healthy campus intelligent management system based on WiFi communication
KR102170557B1 (en) * 2020-04-22 2020-10-27 (주)지올린 System and method for controlling access to hospital
CN111568379B (en) * 2020-05-14 2021-04-02 金瑞致达（北京）科技股份有限公司 Intelligent human body radioactivity detection and epidemic prevention and control access control system
CN111653370A (en) * 2020-07-03 2020-09-11 杭州朗米科技有限公司 One-stop personnel passing management and control system based on palm vein recognition terminal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080295152A1 (en) * 2007-05-25 2008-11-27 Laurel Precision Machines Co., Ltd. Safety management system
US20170014087A1 (en) * 2014-03-31 2017-01-19 Koninklijke Philips N.V. Device, system and method for determining vital signs of a subject
KR20170108735A (en) * 2016-03-17 2017-09-27 (주)솔루션즈온넷 Admission control system
CN111564224A (en) * 2020-04-26 2020-08-21 中控华运（厦门）集成电路有限公司 Intelligent monitoring system with health monitoring function and implementation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024065657A1 (en) * 2022-09-30 2024-04-04 Telefonaktiebolaget Lm Ericsson (Publ) Access control method and access control apparatus

Also Published As

Publication number Publication date
SE2030339A1 (en) 2022-05-13

Similar Documents

Publication Publication Date Title
US20210264598A1 (en) Human detection device equipped with light source projecting at least one dot onto living body
US10959628B2 (en) Biological information detection device using second light from target onto which dots formed by first light are projected
US20170258335A1 (en) Systems for real time febrility detection and notification
CN105007816B (en) System and method for the vital sign for determining object
CN106999116B (en) Apparatus and method for skin detection
EP3104767B1 (en) Device, system and method for determining vital signs of a subject based on reflected and transmitted light
JP2018510669A (en) Device, system, and method for skin detection
CN106659392A (en) Unobtrusive skin tissue hydration determining device and related method
CN105451646A (en) Device, system and method for extracting physiological information
WO2020154955A1 (en) Heart rate detection method and apparatus, and electronic device
KR101310464B1 (en) Biometric surveillance system and biometric surveillance method using the same system
CN113613557A (en) Physiological monitoring system for measuring blood oxygen concentration
WO2022100981A1 (en) An access control system for authorized and symptom-free persons
BRPI0812505B1 (en) BIOMETRIC SYSTEM, METHOD FOR COLLECTING A BIOMETRIC IMAGE
JP6970840B2 (en) Equipment, systems and methods for image segmentation of images of scenes containing objects
WO2023285087A1 (en) A sensing arrangement for obtaining data from a body part
WO2016085512A1 (en) Systems for real time febrility detection and notification
US20210353155A1 (en) Body temperature detection safety kiosk
CN112617746B (en) Non-contact physiological signal detection device
SE2130254A1 (en) A sensing arrangement for obtaining data from a body part using accurate reference values
KR101501365B1 (en) Biometric surveillance system and biometric surveillance method using the same
US20210106232A1 (en) Non-contact physiological signal measuring device
WO2017194669A1 (en) Textile product and system and method for monitoring vital signs

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21799221

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21799221

Country of ref document: EP

Kind code of ref document: A1