TW202121360A - Secure testing device with optical element - Google Patents

Abstract

Secure testing device includes a frame positionable on a person’s head, a display section, and a combiner arranged at least partly in front of the eyes of the person and which allows simultaneous viewing of an environment in front of the person and content on the display section, e.g., test questions. A crossview camera system images from locations on each lateral side of the frame toward the opposite lateral side and below the combiner. An iris camera system images the eyes of the person. A forward-looking camera system images an area in front of the frame. A processor analyzes images obtained by the crossview camera system to determine presence of imaging devices, images obtained by the iris camera system to determine position of irises of the person and optionally imaging devices, and images obtained by the forward-looking camera system to determine presence of specific objects.

Description

Safety test equipment with optical element

The present invention generally relates to the field of computer-based systems and methods. The system and method are used to ensure that the examinee does not get help from others or cheat in other ways while taking the examination, and relates to a method for displaying the examination. The content can be used to take the test equipment, and in the process of taking the test, it can be guaranteed that there is no violation of the test discipline, and there is no possibility of cheating that may damage the test results.

Those who assist examinees in cheating can obtain copies of questions in the exam in a variety of ways and pass the answers to the examinees. This kind of cheating is usually not detected by the proctoring service. Such an approach is discussed in US 10410535.

As commonly used in this article, an "examination" is any type of question-based response that requires thinking or analysis by the person taking the test and the person's potential academic ability.

Therefore, examinations can be viewed as inspections, quizzes, assessments, trials and/or analyses. The test can be used to prove that an individual is qualified to perform a specific task or ability, for example, a driving test. Candidates are those who take this type of examination. Candidates do not have to be students who regularly receive education courses.

The present invention aims to propose and ideally solve the following problem, that is, to ensure with high certainty that the examinee taking the test independently completes the test without the help or cheating of others.

The device that can achieve this purpose includes: a frame configured to be positioned on a person's head; a content display part fixed on the frame, the display part having a first part and a second part; and at least a frame arranged on the frame A mirror partially located in front of the head. When the frame is on a person's head, the mirror is directly in front of the person's left and right eyes. The mirror is an optical element that allows the wearer to view the environment ahead and the content on the display at the same time. Therefore, when the frame is on a person’s head, the reflector reflects the content of the first part of the display to the person’s left eye, and at the same time reflects the same content (the second part) displayed on the other display to the person’s right through the reflector. eye. The side monitoring camera system on the frame takes pictures and imaging from the position on the first side of the frame toward the area under the reflection lens of the second side of the frame opposite to the first side, and the side monitoring camera system on the second side of the frame Take a photograph and image toward the first side surface of the frame and in the area under the reflection lens of the side surface. The iris monitoring camera system arranged on the frame photographs and images the left eye of the person wearing the frame, while also photographing and imaging the right eye of the person wearing the frame. The front surveillance camera system arranged on the frame photographs and images the area in front of the frame. The processor is coupled to the side surveillance camera system, the iris surveillance camera system, and the front surveillance camera system, and analyzes the images obtained by the side surveillance camera system to determine whether there are additional (peeping) imaging devices in any of the acquired images, and analyze The image obtained by the iris surveillance camera system determines the position and angle of the wearer's iris, and the image obtained by the front surveillance camera system is analyzed to determine the presence of suspicious specific objects or (persons).

The side surveillance camera system may include: a first side surveillance camera on the first side of the frame and arranged to image an area under the inner mirror of the first side of the frame; and a second side surveillance camera on the second side of the frame On the side surface, and arranged to image below the inner reflection lens of the second side surface of the frame. The iris monitoring camera system may include: a first iris monitoring camera arranged on the frame to image the left eye of the frame wearer; and a second iris monitoring camera arranged on the frame to image the right eye of the frame wearer. In the following, the term "iris surveillance camera" will mean imaging of the iris, a part of the face around and including the iris, the retina, a part of the face around the retina and including the retina, or optionally including the iris and/or face Of any imaging equipment. The first and second parts of the image display can be placed horizontally next to each other.

When the frame is on a person's head, the reflective lens optionally contains a semi-reflective coating on the inner surface to reflect the content from the first part and the second part of the display and form a visible light path with the person's eyes. At the same time, the reflective lens is located in front of the human eye, so that the frame wearer can see the surrounding environment in front of him. Moreover, the reflective lens may include an anti-reflective coating on the outer surface to allow maximum ambient light to pass through the reflective lens.

The processor can be trained, programmed or otherwise configured to analyze the image obtained by the iris surveillance camera system based on the principle of image analysis and compare it with the previously obtained biometric data for biometric identification to confirm the identity of the wearer. Similarly, the processor can be trained, programmed, or otherwise configured to analyze the images obtained by the iris camera system to determine whether there is a peeping imaging device in any obtained images. For this reason, when analyzing the images obtained by the side surveillance camera system to determine whether there is a peeping imaging device in any of the obtained images, when analyzing the images obtained by the iris camera system to determine the position of the iris of the person wearing it, and/ Or when analyzing the image obtained by the front-view camera system to determine whether there is a suspicious specific object (person or object), the processor can use pattern recognition technology.

The forehead support pad may be arranged at the front of the frame, and its position is to contact the person's forehead when the frame is worn on the person's head. The frame can be considered to include a front end part: this part includes the display part, mirrors, side surveillance camera system, iris surveillance camera system, front surveillance camera system and the front end of the processor, as well as having first and second opposite ends and at the front end The first elongated band that is coupled together at the location. The other part of the frame includes a second elongated band adjacent to the front and in contact with the person's skin when the frame is on the person's head. The second elongated band includes a contact microphone and a contact speaker. The equipment intrusion detection system can be arranged on the outer surface of the front equipment of any embodiment.

Another embodiment of the device includes: a housing including: a display portion including at least one display for displaying content; an optical element coupled to the housing and arranged on the at least one display portion On the optical path, and can be viewed through it when reflecting at least part of the content displayed on at least one display, a side camera system is coupled to the housing, and from a position on each side of the housing toward its opposite side, below the optical element The area is photographed and imaged, the iris monitoring camera system is connected to the housing, and the area behind the housing is photographed and imaged to the rear of the housing; and the front monitoring camera system is connected to the housing and is removed from the housing The rear position of the camera is used to photograph and image the area in front of the housing. The processor is arranged in the housing and is coupled to the side surveillance camera system, the iris surveillance camera system and the front surveillance camera system. The processor analyzes the images obtained by the side-view camera system to determine whether there is a suspicious peeping imaging device in any obtained images, the images obtained by the iris camera system to determine the presence and position of the iris, and the Look at the images obtained by the camera system to determine whether there is a suspicious specific object (person or object). The first elongated strap has opposing first and second ends, and is coupled to the housing at the first and second ends. The first strap extends rearward from the housing to form a closed loop containing the person's head.

The side monitoring camera system may include: a first side monitoring camera, which is on the first side of the housing and arranged inside the first side of the housing and under the mirror to perform photographing and imaging; and a second side monitoring camera, It is on the second side surface of the housing, and is arranged inside the second side surface of the housing and under the reflective lens for photographing and imaging. The reflective lens may include a semi-reflective coating on the inner surface in the optical path of at least one display part, and an anti-reflective coating on the outer surface to allow maximum light to pass through the reflective lens from the environment. The at least one display part may include two display parts placed horizontally side by side with each other.

The processor optionally, but preferably, analyzes the images obtained by the iris surveillance camera system to determine whether there is a suspicious peeping imaging device in any of the obtained images. At the same time, when analyzing the images obtained by the side-view camera system to determine whether there are suspicious peeping imaging devices in any of the obtained images, when analyzing the images obtained by the iris camera system to determine the presence and location of the iris, the analysis is performed by the former When looking at the image obtained by the camera system to determine whether there is a suspicious specific object (person or object), the processor can use pattern recognition technology and image recognition technology at the same time.

The device may include: a forehead cushion, which is arranged at the front of the housing; a second elongated band, which is adjacent to the housing and includes a contact microphone and a contact speaker; and an external force intrusion device detection system (CID), which is arranged On the surface of the housing.

Other devices that can be used as part of the electronic components and are designed to operate through the safety membrane (external force intrusion device detection system) include: 1. A camera used to obtain scans of the iris, retina or part of the face. 2. Microphone is used to monitor the sound made by or near the candidate. 3. The speaker used to test the sensitivity of the microphone. 4. The camera is used to monitor the area between the display screen and the examinee's eyes. 5. A contact microphone, used to detect the sound from the examinee's mouth, mainly speaking, that is, words. 6. The contact speaker is used to monitor whether the contact microphone is in contact with the examinee's skin. 7. A device connected to the contact microphone to detect the presence of the examinee’s skin. Such a device may include a blood flow sensor that includes an LED and a light sensor that is positioned so that the reflection of the LED is within the field of view of the light sensor only when the device is very close to the skin. The skin presence sensor may also include a temperature sensor, a camera, a capacitance sensor or any other device that can determine whether the candidate's skin is present. 8. Two or more ECG (EKG) pads, used to detect and record the candidate's electrocardiogram.

1. System operation and management: The various concepts of the present invention are similar to those disclosed in US10410535, and the present invention is an improvement on those applications disclosed in US10410535.

2. Preliminary design: In Figs. 1-10, a simple direct projection display has been shown, where the display is a form in which an image is directly projected onto a projector and guided to the eyes. An image display form that replaces the projection form has also been disclosed. When not viewing the image, the disadvantage of the direct projection display is that it blocks the view of the surrounding environment. Again, this design is limited to applications where only one eye can be used.

Other options include reflective displays, where the projector projects the image directly onto a lens or reflective glass in front of the eye, and refractive displays, where the display device has the greatest degree of freedom in the position of the eye.

Both reflective displays and refractive displays require display elements that display images for further processing by the optical system. Preferred technologies include liquid crystal silicon (LCoS) and active matrix organic light emitting diodes (AMOLED) or just LCD displays.

The reflective display design disclosed in US 20170061212. The exemplary embodiment in FIGS. 2A and 2B can be modified to incorporate external force intrusion device detection system (CID), iris, front and side view cameras, contact microphones and speakers, EKG electrocardiogram sensors, and other features disclosed herein. It is included here as another example of the use of mirror displays. Another prior art reflector design is disclosed in US 20170336634.

The refraction display of US 10,180,572 in Figure 10 is designed to: the device in Figure 1 can be modified to incorporate the external force intrusion device detection system (CID), iris, front-view and side-view cameras, contact microphones and speakers, EKG electrocardiogram sensor and this article Other features disclosed. It is included here as an example of the use of a refractive display.

Fig. 1 is a front view of a form of a safety examination device, which has many features and the same or similar functions of other safety examination devices disclosed herein. In this embodiment, shown as 1000 as a whole, the electronic device is contained in the housing 1002, and the display is shown as 1004. The knobs 1003 and 1005 are used to clamp the housing of the electronic device and the display assembly in a desired direction and allow rotation around the side and vertical axis. The knobs 1003, 1005 may be configured such that the rotation of each knob 1003, 1005 causes a change in the distance between the housing 1002 and the frame. This allows the examinee to adjust the display 1004 so that the display is properly aligned with the examinee's eyes. Therefore, the positions of the housing 1002 and the display 1004 relative to the glasses frame are adjustable. Any adjustment mechanism that provides this variable position can be used, and the knobs 1003, 1005 are merely exemplary embodiments. This design is larger than the previous design because basically all the necessary electronic equipment is contained in the housing.

2 is a view of the safety examination device 1000 from the side and rear, showing the spectacle frame 1006 and the adjustable clamping mechanism 1007, which is used to connect the housing containing the electronic device to the spectacle frame 1006 Temples. The clamping mechanism 1007 includes two knobs 1003 and 1005, which provide the adjustment function of the relative position of the spectacle frame 1006 and the housing part. The clamping mechanism 1007 is clamped to the spectacle frame by tightening the screw 1011, which allows the entire assembly to be positioned relative to the spectacle frame 1006.

For example, electric power is supplied to the safety examination equipment 1000 through the electric wire 1010. A contact microphone 1012 is provided, and is pressed against the examinee's skin by a spring 1013 connected to the housing 1002. The spring 1013 extends inwardly from the housing 1002. That is, the direction relative to the temple. The contact microphone 1012 is arranged close to the spring 1013 or at the inner end of the spring 1013, and is biased further outward from the temple, so that when the safety examination device 1000 is worn, the spring 1013 can be compressed and therefore exert pressure on the skin . In this way, contact between the contact microphone 1012 and the skin of the wearer or examinee is maintained. A sound generator such as a contact speaker 1014 is provided on the spectacle frame 1006, on the temple near the other temple. The microphone 1012 and the speaker 1014 electronically communicate with the processor in the housing 1002 to operate as described above. Contact speakers, also called bone conduction speakers, emit audible sounds and vibrations to the examinee's skin and/or bones. This audible sound can be used to test audio microphones instead of sound generators.

Examinees are usually prohibited from speaking during the exam to prevent them from verbally providing exam questions to their associates. The microphone can be used to detect the examinee's speech, but this kind of microphone will also record other sounds in the environment, so it may be difficult to distinguish the examinee's communication from the sound in the environment. The contact microphone will only detect sound vibrations passing through the candidate's skin, and ignore all other sounds. Therefore, this is the preferred method to determine whether the candidate is speaking. In order for the system to work, the contact microphone 1012 must be in contact with the candidate's skin. Various techniques can be used to determine whether such contact has occurred, such as an optical sensor that looks for the examinee's skin, a capacitive sensor that determines the skin capacitance, and a temperature sensor that measures skin temperature. Each of these methods may be overcome by techniques such as placing the soundproofing material between the contact microphone and the skin without being detected by optical, capacitive or temperature sensors.

To solve this problem, the contact speaker 1014 can be placed on the other side of the examinee's head. The contact speaker 1014 can be programmed to periodically transmit sound to the contact microphone 1012 and the audio microphone 24 through the examinee's head. If both contact devices are in contact with the examinee's skin, the contact microphone 1014 will detect the signal, thereby confirming that the entire examination device 1000 is correctly worn in place.

Whenever you hear a sound, you should use the voice recognition function to activate the bone or contact microphone. As long as there is transmission from the audio speaker and sound is heard, the audio microphone should be activated. If the candidate finds a way to beat the contact microphone and speak at will, the audio microphone should make up for this loophole. If the environment is too noisy, you can suspend the exam until the noise disappears. Candidates should not take the test in an environment where they talk too much.

Before starting the exam, you can ask the candidate to say his name, and both microphones should be able to record it. If there is any question about the activation of the bone microphone, or at other random times, the organization that performs the test can request the test taker to restate his or her name or publish other test-related information through the safety test equipment. Both microphones should record the response without unreasonable delay. In future versions, it may be desirable to have multiple microphones in the headset so that the location of the sound source can be triangulated. Even with the two microphones described here, such positioning processing can be performed.

Figure 3 shows the use of the external force intrusion device detector CID 1016, such as the above-mentioned CID 22 or any other external force intrusion device detector CID disclosed herein. FIG. 4 additionally shows the electronic device 1018 from the inside view, which is covered by the CID 1016. The display 1022 is similarly covered by the external force intrusion device detector CID 1016.

FIG. 5 shows an exemplary method of connecting a USB interface that supplies power to the examination monitoring device through the external force intrusion device detector CID 1056 or CID 22 or any other external force intrusion device detector CID disclosed herein. The external force intrusion device detector CID 1056 is shown as covering a part of the PC board 1054. The USB interface 1050 is connected to the housing 1052. The USB interface pins 1058 pass through the small holes 1060 provided in the CID 1056. These holes 1060 are small enough that it would be quite difficult for anyone to try to defeat the external force intrusion device detector CID1056 through these holes 1060 and modify the device to achieve its cheating purpose. The test monitoring device shown can be any test monitoring device disclosed herein.

FIG. 6 is a view similar to FIG. 2, showing the contact speaker 1014 and the contact microphone 1012. The contact speaker 1014 has been moved forward to the temple position on the temples of the glasses frame 1006 to provide convenience for candidates with beards. A movable connection of the contact speaker 1014 to the temple position of the temple is provided. The connection from the speaker 1014 to the electronic device is through a wire 1009, which can pass through the inner space of the temple and the lens part of the temple. The wire 1010 is connected to a power source from the USB port described in FIG. 5, such as a power outlet installed on a wall.

Figure 7 shows an EKG sensor with an electrocardiogram in the form of a thin film 1110, which is placed on the surface of the contact microphone 1012 (to form the microphone assembly) and the contact speaker 1014 (to form the speaker assembly) at one end of the test taker’s skin . In FIG. 7, the contact microphone 1012 with the ECG sensor and the contact speaker 1014 are both moved forward on the temples of the glasses frame 1006 so that they can contact the skin of a bearded person. Note that the contact microphone 1014 is covered by the external force intrusion device detector CID, and the contact speaker 1012 is not covered by the CID. Although both devices can be covered by the external force intrusion device detector CID, it is not necessary to cover the contact speaker.

The EKG sensor (also known as the electrocardiogram sensor or ECG sensor) can measure the heartbeat waveform and can further verify whether the contact speaker and microphone are in contact with the skin. The electrocardiogram sensor also provides another method of biometric verification of the examinee's identity. Because the signal used for ECG EKG measurement is weak, the external force intrusion device detector CID cannot cover the sensor itself. This problem can be solved by allowing two conductors to be placed through the CID and allowing the ECG sensor EKG to be pasted to the outside of the CID. The rest of the contact microphone can be placed inside the CID cover of the external force intrusion device detector.

In addition to multiple-choice answer exams, any publicly secured exam equipment can be used for exams that require written answers. For this type of test, the safety test equipment is equipped with a high-definition display that can display multiple lines of text. The security test equipment should also be able to display a virtual keyboard to prevent candidates from typing on the desk, which will be observed by the front surveillance camera. Such a virtual keyboard is described in US 10180572. When asked to write the answer to the question, the candidate will use the virtual keyboard on the display to type the answer, and then the answer will appear on the display. In this way, when the test is being conducted, even if the accomplice who tries to cheat is peeping through the candidate's shoulder, he cannot observe the answer chosen by the candidate.

In some cases, especially in the case of mathematical derivation or handwritten mathematical expressions, written answers to exam questions are required. In this case, the candidate can be equipped with a tablet computer, and input their handwritten responses into the tablet computer. The handwriting of the examinee will not be displayed on the tablet, but it will be linked to the display screen of the safety examination device in a way that the safety examination device only receives the handwriting response for the examinee to view and correct.

Instead of using the secondary electro-optic effect or Kerr electro-optic effect, or the linear electro-optic effect or Pockels effect to blacken the reflective lens at the front of the display to prevent the display from being viewed by cheating partners, you can use electrified color glass Or plastic film to achieve this function, as described in US 10180572. In this case, the energized color-changing glass will be completely black or opaque through the control mechanism, so that the displayed content cannot be seen by the person standing in front of the examinee. Another method is to use polarized lenses for mirrors and displays, where the polarization angle is rotated 90 degrees. The reflector can be vertically polarized, and the display can be horizontally polarized. In this case, the light from the display will not pass through the reflector, so that no one standing in front of the safety examination equipment can observe the content on the internal display.

Using the electrocardiogram detection EKG system disclosed in this article, the safety examination device can obtain the second personal biometrics, which is used to identify the examinee and to verify whether the examinee actually wears the safety examination device. Therefore, in addition to the iris biometric recognition function obtained by the iris surveillance camera, the EKG pads on the opposite sides of the examinee’s head will also record the shape of the examinee’s heartbeat, which is unique to the examinee and therefore is the examinee’s identifiable biological feature.

In addition to using the mouse, the candidate can also use his voice to enter commands into the safety test equipment. Although it can be used as an alternative to the above-mentioned mouse for answering exam questions, it can also be used for other commands, such as starting an exam or controlling the display of exam questions. Candidates can say "next question", "I need to take a break", "exam completed", etc. The contact microphone will listen to what the candidates say, so that various commands can be executed. Voice input can also be used to answer essay-type questions. If the examinee apparently did not use his voice to request help from a cheating partner, you can use voice input. In a version of the safety test equipment, miniature microphones can be provided, which can be inserted into the test taker's ear to hear whether the test taker is using a speaker inserted in his ear. Such speakers are like hearing aids. Such a microphone can be a miniature device with a volume not exceeding one cubic millimeter. When test takers wear safe test equipment, they can be inserted into test takers’ ears. Such a microphone will also sense the candidate's voice. Therefore, under the instructions of the safety test equipment, candidates can say something to test whether the in-ear microphone is installed correctly. The call can also be used to test whether the contact microphone is operating normally, although as mentioned above, this feature also provides other forms of testing based on contact speakers and EKG equipment.

The following describes the random ordering of the exam questions. In addition, the selected answers to the exam questions can be sorted randomly.

The secure testing device may use other methods to allow candidates to enter commands into the secure testing device. One such method of using an iris surveillance camera is to track eye movement, which can be used to select answers to questions or control the operation of safety examination equipment. Blink and close time/duration can also be used for this purpose. Another such method is to use gestures, which can be seen by the front camera and interpreted by appropriate software. Teeth tapping can even be used to control exams, especially to choose answers to multiple-choice questions.

The lenses of the glasses can be easily replaced, allowing different prescription lenses to be used for different candidates.

The equipment disclosed in this article is not a necessary equipment for the exam, and can also be used for other purposes, such as games and entertainment.

3. Class exams. Figure 8 shows the use of the device according to the present invention in a room full of candidates, where each device can be connected to a central computer 1306, for example, via a USB port. In this case, each candidate 1302 is equipped with a keyboard and/or mouse or other input device, and a display 1304. Each device can be connected to the central computer 1306. Otherwise, the operation of the safety test glasses is as follows. Provide each test taker with different versions of test questions in a random order of the test questions, and use the keyboard and/or mouse to answer the test questions. The central computer knows which test question version each candidate is answering so that this information can be used to score the test. Since a different version of the test questions is provided for each candidate, if the candidate is not allowed to talk to other candidates during the exam, the answers provided by one candidate will not be able to help the other candidate.

Fig. 9 is a view similar to Fig. 8, in which the answer is written by the examinee on a piece of paper, which will be collected by the person in charge of the supervising examination at the end of the examination. Similarly, since each examinee will take the same exam with randomly reordered questions, there is little benefit in the process of secretly exchanging answers with another examinee. Therefore, with the arrangement shown in Figures 8 and 9, examination monitoring glasses can be used remotely or in a classroom environment.

According to another simplified form of the safety examination equipment, a device constructed according to the explanation of the present invention is shown in FIG. 10, which is a perspective view of a head-mounted glasses type equipment, examination glasses or safety examination equipment. Including multiple sensors, cameras, and displays, all protected by the external force intrusion device detector CID described elsewhere in this article, and prepared using the content of this article. Head-mounted displays and electronic devices constructed in accordance with the present invention are generally shown at 1410 in FIGS. 10 and 11.

The housing 1420 extends from the frame 1422. The housing 1420 is substantially L-shaped, the first part extends straight outward from the edge of the frame 1422, and the second part is perpendicular to the first part and located in front of the frame 1422.

The display 1412 is arranged on or in the housing 1420 and points to the right eye of the examinee to display the test questions (although, alternatively, the display may point to the left eye of the examinee). The front-view camera 1414 representing the imaging device is also arranged on or in the housing 1420, and monitors the examinee's field of view outward from the viewing device 1410. The camera 1414 may have a field of view of approximately 120 degrees. The microphone 1416 is also arranged on or in the housing 1420, and detects conversations (sounds) that may occur during the examination. A sound generator or speaker 1418 is arranged on or in the housing 1420, and periodically provides sound detectable by the microphone 1416 to verify that the microphone 1416 is not interfered in some way and cannot work. The speaker 1418 may be placed farther away from the microphone 1416 and insulated from the housing 1420, so that the microphone 1416 cannot receive the sound emitted from the speaker 1418 through the housing 1420, but instead receives the sound emitted by the surrounding environment of the device 1410.

The display 1412 is arranged at the terminal of the second housing part. A front surveillance camera 1414, or more generally an imaging device, a microphone 1416 and a speaker 1418 are also arranged on the second housing part (Figure 10).

Each of these components 1412, 1414, 1416, 1418 is connected to an electronic package containing a processor in a housing 1420, which is mounted to the spectacle frame 1422 in a manner known to those skilled in the art to which the present invention pertains. The cable is connected from the electronic device package in the housing 1420 and may include a USB port 1424 for connecting to an external device (such as a computer, battery pack, or wall power supply).

The iris or retina scanning camera 1426 is arranged on the housing 1420, points inwardly toward the wearer, and measures the examinee's biological characteristics. Such biometric features may include iris or retina scans or scans of the face around the eyes. Illumination to the eyes may be provided by an LED lamp 1428 arranged on the housing 1420, which may be in the infrared (IR) or visible part of the electromagnetic spectrum. If you use a white LED, you can limit the intensity or time it is turned on so as not to disturb the candidates. Two or more different levels of visible light illumination can be provided so that the iris can be seen at different degrees of eye opening to check the artificial iris coated on the contact lens. The iris scanning camera 1426 and the LED lamp 1428 are arranged on the second housing part.

The camera 1430 may also be provided on or in the housing 1420 to check for any abnormal activity that may occur in the vicinity of the device 1410 (Figure 11). Such a camera 1430 can detect whether the image capturing device has been temporarily or permanently attached to the device 1410 or near the face of the candidate and peeping at the content on the display 1412. Similarly, around the space of the candidate’s left eye, the camera 1430 can monitor whether there is an image capture device for peeping at the display to ensure that the candidate does not use this image capture device with his left eye and/or for Another display that provides help to candidates. The camera 1430, or more generally an imaging device, is arranged on the first housing part and is oriented to monitor most of the frame 1412 (Figure 11).

The software and processor that control the management of the exam may reside on an external computer, in an electronic package in the housing 1420, or in another device connected to the device 10 through the connector 1424. Candidates can use the keyboard and/or mouse for interacting with this computer. Using the keyboard, candidates can initiate the exam process by communicating with the exam provider. When the test is ready for the test taker to start the test, the encrypted version of the test will be transmitted to the computer and relayed to the device 1410. The electronic package (including a processor, for example) in the housing 1420 uses a dedicated decryption key to decrypt the exam questions and display them on the display 1412. Then, candidates use the keyboard and computer monitor to enter the answers to the questions.

3. Smart glasses, the design 1800 of an alternative security examination device that uses a single microdisplay to provide images to both eyes is shown in Figures 12-17. The components that must be protected by the external force intrusion device detector CID are arranged more closely to simplify the CID design. A single (micro) display 1828 is used to illuminate the lens 1830 seen by each eye. Two iris surveillance cameras 1802, two lateral surveillance cameras 1806, and two front surveillance cameras 1818 can be implemented in this design. Since the display 1828 will be seen with two eyes, the two displays must be monitored to ensure that the device is not rotated or pulled away from both eyes in some way to allow insertion of the peeping camera. Similarly, the side-pointing surveillance camera 1806 must now look at the sides of the examinee's head to search for peeping cameras that the examinee may insert. Sensor assemblies 1810 and 1812 are provided on each side of the forehead (Figure 17). These sensor components 1810, 1812 measure the electrocardiogram and the sound from the examinee's head. The sensor assembly 1810 may include, for example, a contact speaker and a contact microphone, and a corresponding sensor is installed at each position. Similarly, the sensor component 1812 may contain an ECG (EKG) sensor that measures electrocardiogram. The contact microphone will determine when the examinee makes a sound, and the contact speaker will be used to test whether the contact microphone is in contact with the examinee’s skin, as described in other safety test equipment examples. Contact speakers can also emit audio sounds, so they can be used to test audio speakers (if present). Since the electrocardiogram EKG sensor pads must be sensitive to very low voltages, they will usually be placed outside the external force intrusion device detector CID. A small pair of contacts can be placed in the CID to allow the signal to pass from the ECG sensor to the internal electronics. The EKG sensor pad can be properly connected to the external force intrusion device detector CID by gluing, so that any attempt to remove the EKG adhesive pad will destroy the external force intrusion device detector CID. Two front monitoring cameras 1818 are provided to increase the monitoring field of view of the sensor system and allow future 3D images to be created when augmented reality is implemented into the design. The optical system can be arranged to feed alternately polarized frames to the right and left eyes of the examinee, where a single display panel can transmit information to the eyes to selectively polarize consecutive frames or even in the same To watch the 3D hologram in the frame.

The safety examination device 1800 in this example includes a headband 1808 with an adjustment knob 1816 to allow the device to be securely placed on the examinee's head (Figure 13). The battery 1814 can also be integrated with the device and placed at the rear of the device to balance the force from the safety examination device 1800 on the head of the force gauge. In this way, the center of gravity of the safety examination device 1800 can be adjusted to be placed near the center of the examinee's head. Under these circumstances, the safety examination device 1800 should have almost no tendency to slide forward or backward. The battery 1814 can now be larger than previous designs and is designed to provide many hours of runtime without the need for an external power source. The wires can be led from the battery 1814 to a wall outlet, or for this purpose, a socket can be provided in the battery box.

The display panel 1828 is projected down through the lens 1854 to the polarizing beam splitter and mirror assembly 1856, which sends the alternately polarized light to the left and right. Therefore, the display image is divided into two images of alternating polarization. The mirror 1820 then projects the light down to a mirror surface 1804 containing a reflective coating, reflecting the picture into the eye. Each lens 1854 can be polarized differently, so that, for example, light polarized horizontally for the right eye interacts with the vertical polarizing film on the right lens. This has the effect of making the right lens act as a mirror, thereby preventing the image from being seen from the front of the safety examination device 1800. Similarly, for example, a polarization image viewed by the left eye, which can be vertically polarized, will interact with the horizontal polarization. If the polarization angle is set to +45 degrees and -45 degrees, the vertical and horizontal polarized light from the natural environment will have little effect on the image.

In another arrangement, the light from the projector will be projected to the rear of the safety test equipment and reach the position on both sides of the head. The mirrors in this position will change the projection direction of the image and project it to the examinee’s eyes. On the polarizer. This method simplifies the design of the lens, so there is no need to use a reflective surface to change the angle of the light to be integrated into the lens.

Several adjustments will now be described. Adjusting the angle of the projector or the mirror that reflects the image to the lens can be used to accurately aim the reflected light at the examinee's eyes, so as to adapt to the pupil distance of different people. The lens can be a composite lens arrangement, whereby the outer lens can be corrected based on the lens prescription according to the different needs of people with different vision. The inner lens may be a lens that reflects toward the eye. The two sets of lenses can be designed so that the external lenses can be interchanged according to the candidates' visual needs. The internal lens can be incorporated into the external force intrusion device detector CID, thereby eliminating the possibility of candidates placing a peeping camera that can see the internal lens and therefore peek at the contents of the display screen. The focus of the display can be changed by moving various optical components. Under this arrangement, the field of view can be controlled so that it can only be seen by the examinee’s eyes.

In this kind of safe test equipment design, it can provide functions for augmented reality equipment, such as virtual smartphone, mouse or keyboard for test takers. These may require the identification and depiction of candidates’ fingers, so that the system can accurately track and understand the movement of the fingers. The virtual keyboard can be connected to the position near the test taker’s finger, or it can be connected to a table that is virtual or appearing in the environment, and the layout of this design is also very suitable for holographic presentations.

Figures 18-26 show another preferred design of the safety examination device 1900 for two eyes. In this case, two larger displays 1908 are used to form a display in the housing of the safety examination device 1900 section. The two displays 1908 are placed side by side with each other approximately horizontally in the safety examination device 1900, as shown in FIG. 23. The image from the display 1908 is reflected from the mirror 1902. The reflector 1902 preferably has a semi-reflective coating on the inner surface, that is, the surface in the optical path between the display 1908 and the examinee's eyes. When the safety test equipment 1900 is placed, or placed on the examinee’s head in other ways, the reflector reflects only a part of the display 1908, for example, 50% of the incident light is directed toward the examinee’s eyes (the examinee is wearing the safety examination equipment 1900 The person on the head). The rest of the light is transmitted vertically downward through the reflective lens.

The reflective lens 1902 allows the examinee to view the environment at the same time, because when the safety examination device 1900 is located on the examinee’s head, the reflective lens 1902 is located on the frame or housing of the safety examination device 1900, in front of the examinee’s eyes and displays the image content from the display 1908 reflection. Therefore, compared to some virtual reality goggles that completely cover the wearer's eyes, the reflective lens 1902 does not block the wearer from seeing all the light outside the device and from the environment in front of the examinee. Moreover, the reflective lens 1902 does not have to touch the examinee's cheek at the bottom edge or conform to the shape of the wearer's face, so there is usually a gap between the bottom edge of the reflective lens 1902 and the person's face.

The reflective lens 1902 preferably has an anti-reflective coating on the outer surface to allow the maximum possible ambient light to pass through the reflective lens 1902. The reflective lens 1902 may also have a privacy coating, which prevents light from penetrating from the outside in any direction other than the direction perpendicular to the outer surface of the reflective lens 1902. Such a film can therefore block light that normally passes through the mirror 1902 in the vertical direction, and therefore block the display content on the inner surface of the mirror that can be seen from below. The mirror 1902 represents a single or multiple mirrors that cooperate to provide the above-mentioned functions. The upper edge area of the reflective lens 1902 is connected to the frame or housing of the safety examination device 1900 so that the reflective lens 1902 is under the frame. Also, the reflective lens 1902 and the frame or housing are components of the front part of the safety examination device 1900. The edge of the front part is not configured to conform to the wearer's face. In addition to being designed to be at least partially in front of the examinee's eyes when the safety examination device 1900 is on the examinee's head, the reflective lens 1902 can also be provided with side parts, with one side part on each side of the front end of the head. In this way, the person can only see the front or side of them through the mirror 1902 and its associated structure.

The display 1908 may also have a privacy coating attached on its surface to accurately guide the light in a direction perpendicular to the surface of the display, thereby making it difficult to see the display content of the display 1908 from below. Privacy coatings are best at preventing light from being transmitted from the horizontal or vertical direction, so the display may need two such films. The reflective lens can also include a film of an electrified color-changing material, the transmittance of which can be controlled by the current. Therefore, the amount of light passing through the reflective lens from the environment can be controlled. In this way, the reflected image from the reflective lens can be viewed under bright ambient light conditions. In addition to conductive color-changing materials, it also includes the aforementioned Cole effect. Finally, as described below, a side-view camera 1910 is provided to monitor the spatial area around and below the reflector to search for external voyeur cameras.

When the safety test equipment is worn on the examinee's head, and the display has content display and provides light for the two iris cameras 1904 to monitor the examinee's iris, to ensure that the examinee's eyes are in the proper position while the examination is being conducted. The camera 1904 is also used for candidate biometric identification purposes. The iris monitoring cameras 1904 can have a much wider field of view than required to observe the iris, so they can also be used to monitor peeping cameras placed by examinees in order to transfer test content to cheating associates. The iris camera 1904 is a part of the iris surveillance camera system, which is arranged on the frame of the safety examination device 1900 and is generally configured to photograph and image the examinee's eyes when the safety examination device 1900 is on the examinee's head. The iris monitoring camera system may include different numbers of iris cameras 1904, as long as the left eye and the right eye are photographed and imaged. The iris camera system is arranged at the front of the security examination equipment 1900.

A side surveillance camera 1910 is provided to monitor the display where the examinee obtains the test content, as well as the area between the reflective lens and the eye, to check whether there is a peeping camera that passes the test content to the cheating partner and its location. By using the iris and side surveillance cameras 1904, 1910, it should be impossible to hide the imaging device in the three-dimensional area surrounded by the security examination device 1900 and the examinee's face. The side surveillance camera 1910 is a part of the side surveillance camera system arranged on the frame of the safety examination equipment 1900. When the safety examination equipment 1900 is on the examinee’s head, the side surveillance camera 1910 is generally configured to take and image the area under the mirror from the position on the first side of the frame toward the second side of the frame opposite to the first side, and The image is imaged from the position of the second side surface of the frame toward the first side surface of the frame under the reflective lens. The side surveillance camera system may include a different number of side surveillance cameras 1910, as long as the three-dimensional area surrounded by the safety examination device 1900 and the examinee's face is photographed and imaged. The side-view camera system is arranged at the front of the security examination equipment 1900.

Two front surveillance cameras 1906 are also provided to monitor the security examination equipment 1900 and the environment around the examinee. Together, these cameras 1906 will contain a large field of view, which can be used to monitor the presence of scratch paper notes, textbooks or other devices. These notes, textbooks or other devices can help examinees answer test questions, but are prohibited from being used during exams by regulations. It can be determined whether there is a computer that the examinee can use to access the Internet. Similarly, if the candidate is typing on the keyboard, the action can be detected. In short, the front surveillance camera 1906 can detect any prohibited activities performed by the examinee. They can also determine the existence of potential cheating associates who are trying to help candidates during the exam. The front surveillance camera 1906 may be equipped with LEDs or other lighting, which may be in the visual or infrared (IR) part of the electromagnetic spectrum. If IR illumination is used, the camera 1906 needs to be IR sensitive. The front surveillance camera 1906 is a part of the front-view camera system, which is arranged on the frame of the safety examination equipment 1900, and is generally configured to photograph and image the area in front of the frame, and ideally, when the safety examination equipment 1900 is When wearing, take a picture of the outer area of the frame on the examinee's head. The front-view camera system may include a different number of front-view cameras 1906. The front-view camera system is arranged at the front of the safety examination equipment 1900, and the purpose is to photograph and image the environment around the safety examination equipment 1900.

Neural networks or deep learning techniques can be used to analyze the images obtained by the above six surveillance cameras. To this end, an image processor is generally provided in the front of the safety examination device 1900 or in the housing (for example, included on the printed circuit board 1920 shown in FIG. 26). The processor is coupled to the side surveillance camera system, the iris surveillance camera system, and the front surveillance camera system, and performs various image analysis. For example, the processor analyzes the images obtained by the side surveillance camera system to determine whether there is a suspicious peeping imaging device in any of the acquired images, and analyzes the images obtained by the iris surveillance camera system to determine the examinee’s iris relative to the safety examination device 1900 location, and analyze the image obtained by the front surveillance camera system to determine the existence of suspicious human objects. The processor may also be configured to analyze the image obtained by the iris monitoring camera system and perform biometric recognition based on the image analysis and previously obtained biometric data. Generally, the processor can use pattern recognition when analyzing an image, or can be trained, programmed, or configured to provide an analysis result of whether there is a peeping imaging device in the image. When used for examination purposes, after analysis, it is determined whether there are suspicious peeping imaging devices or cheating personnel or unauthorized examination assistants in the captured images. If there is, the examination is immediately terminated early.

The safety examination device 1900 is held on the examinee's head by connecting the forehead cushion 1912 with the elongated strap 1914, the tension of the elongated strap 1914 is preferably adjustable by the adjustment knob 1918 (FIG. 24). One end of the belt 1914 is connected to the front of the safety examination device 1900, and meets with the other end at the front of the safety examination device 1900. Other belts and length adjustment mechanisms can be used in the present invention. Another elongated strap 1926, which keeps the contact microphone 1922 and the contact speaker 1924 against the examinee’s forehead, also helps to secure the correct positioning of the examination equipment on the examinee’s head. The belt 1926 is a part of the front part of the safety examination device 1900.

The printed circuit board is shown generally at 1920, and is powered by a battery 1916 through wires not shown. It should be considered that the printed circuit board 1920 represents a processor for performing functions required for the operability of the safety examination equipment 1900 or a device or a data processor that assumes the functions of the processor, including but not limited to image analysis. The secure testing device 1900 may include additional features, including those of any embodiments of the secure testing device or glasses disclosed herein. The use of the safe testing device 1900 can be for testing purposes in any manner disclosed herein.

Figures 27-30 show the key components of the device covered by the External Force Intrusion Device Detector (CID) 1952. The operation of the external force intrusion device detector CID is discussed elsewhere and will not be repeated here. Components covered by CID are usually shown as 1950.

Covered (protected) by the external force intrusion device detector CID 1952, there is a contact microphone 1954, a contact speaker 1956, and a side surveillance camera 1962 connected via a PCB board 1960, a front surveillance camera 1964 and an iris surveillance camera 1966 Interface 1958. The display 1968 is connected to the PCB board 1960 via a flat ribbon cable 1970.

The external force intrusion device detector CID 1952 is represented by a smooth gray shade. In fact, the external force intrusion device detector CID 1952 will adhere to the surface of each component. In some cases, it is necessary to add other structures to correctly determine the appearance of CID 1952 with respect to the various components to be protected. The external force intrusion device detector CID 1952 can be directly covered on the outer surface of the camera 1962, 1964, 1966, the display 1968, etc., and realized in the form of providing a smooth surface that does not deform the images acquired or displayed by these devices. The external force intrusion device detector CID 1952 preferably only covers the content shown in FIGS. 27 and 30. The external force intrusion device detector CID 1952 does not cover the side cover (part of the mirror 1902) or the belt 1914. In fact, the external force intrusion device detection module can be modularly formed, which requires the protection of the electronic components and the camera to be concentrated on the front of the security examination device, and then the external force intrusion device detector CID 1952 is covered on the surface of the package shell. Then embed the module covering the CID into the shell frame as a whole. The wires from the covered equipment will be connected to the battery and connected to the wall power supply through the socket on the battery.

4. Gestures, the front surveillance camera can be used to monitor the position and movement of the candidates' hands and fingers, so it can be used to record gestures. Gestures can be used to control various functions of the safety test equipment. For example, gestures can be used to control the information displayed on the display and to select answers in multiple choice exams. For example, it can replace the touch screen function. In many cases, the movement of hands and fingers can replace the mouse or keyboard, thereby further improving the safety and versatility of the safety examination equipment. A virtual mouse and/or keyboard can be provided for such purposes.

5. Processor, not all sensors need to be used for continuous monitoring. Once the examinee's iris image is acquired, other images of the eye can be acquired every second or at some other rate, with almost no processor requirements. The initial model of the security test equipment has used the Raspberry Pi 0W and CM3 boards with the standard processor on it.

6. Sensors, many other sensors (such as fingerprint sensors, touch sensors, etc.) can be installed on the security test equipment. In addition, many sensors that are not indispensable to security testing equipment can communicate with security testing equipment through WiFi, Bluetooth, or other wireless or wired communication protocols. For example, in some implementation methods, it may be desirable to have one or more cameras in the environment, such as monitoring cameras between the waist and knees, to monitor candidates or activities in the environment during an exam or at other times. Similarly, the safety test equipment can be used to control equipment that has nothing to do with the safety test equipment, such as room temperature, lights, garage doors, door locks, etc., through its connection with the Internet or another external controller.

7. Communication. Communication from security test equipment to the Internet and other equipment usually involves the use of Wi-Fi and Bluetooth™. Communication can usually involve sending exam questions and answers between a secure exam device and an Internet router. In some versions of security test equipment, direct mobile communication can also be used. As the speed of mobile phone data transmission increases, this will become more and more important. The best way to communicate with the Internet may soon be via 5G, so Wi-Fi (although available) may be used less and less. The external force intrusion device detector CID provides excellent hardware security, but there is still the possibility of malicious software entering the security examination device through one of the communication channels. One way to prevent this type of malware from residing on the security testing device is to require that all communications with the security testing device, except for Bluetooth™, be conducted through a secure Internet router. The routing server will scan all transmissions intended for security testing equipment to ensure that there is no malware.

When using security test equipment, it may be necessary to use the computing resources of external devices such as smart phones and PC computers. This can be achieved by sending data and commands to external devices using various input methods. These methods include the use of physical or virtual mice and/or keyboards or passwords. For some special applications, if appropriate software and hardware are provided, other data input devices can be used together with the safety test equipment. One such device is a clicker that can be used to answer multiple choice questions. The other is a ring that can be worn on candidates’ fingers and has a mouse function. In some cases, such a ring may have a camera, which is useful for taking pictures of candidates to help verify their identity. Like mobile phones, security test equipment can also be used to control external devices, such as radio or television, lights, door locks, etc.

8. For applications of augmented reality and non-educational activities, any of the various functions can be incorporated into the design of several safety examination equipment disclosed in this article. A few of them will now be described.

In order to prevent the leakage of the content on the reflective lens seen by the wearer of the safety test equipment, the user can view the surrounding environment through the lens that can include the Kerr or Pockels effect principle (Kerr or Pockels) or conductive color film, for example, in When taking the exam. The same device can be used to control the brightness of the room or ambient light relative to the display to enhance the contrast of the display.

IMU can be added when it is necessary to understand the front and back movement or rotational movement of the head of the wearer of the safety examination equipment. For example, this device can be used to record head movements based on programs that exist and run on the CPU of the safety test device to control various functions. You can add GPS where you want to know the location of the safety test equipment. GPS and IMU can be used in conjunction with various cameras to map the environment where the safety test equipment is used, so that augmentation equipment can be added as in augmented reality. In addition, the monitor can project the screen into the environment, for example, allowing the use of multiple screen images, and the user can move between the screens just by moving his head, just like the room where the examinee is located has multiple TV screen images same. A magnetometer can be added to help adjust the direction of the safety test equipment.

Although patent documents related to smart glasses provide examples of using laser radar to map the environment (such as the room where the examinee is), the preferred mapping system can use the technical method for road mapping disclosed in US 20190271550. The safety test equipment is equipped with one or more cameras. The examinee’s head is often moved. When combined with IMU, GPS and other related equipment, the three-dimensional technology disclosed in patent WO2018017793 can be used to accurately map the environment. A magnetic compass or magnetometer can also be included in the safety test equipment to provide assistance in the process of orienting or mapping the environment.

Candidates can use the laser pointer to select a point in the surrounding environment. It can be used in conjunction with augmented reality to locate specific points where augmented reality devices should appear. The laser radar can be used to enhance the function of this laser pen to determine the distance to the selected object (object) on the basis of a limited range. See U.S. Patent No. 10,152,141.

In addition to cameras and laser radars, structured light can also be used to draw geometric shapes in the surrounding area with respect to safety examination equipment. In this case, for example, patterned light beams can be emitted from different directions of the safety examination device, and the interference effect or relative position of these structured patterns can determine the distance from the safety examination device. See U.S. Patent No. 7,182,465.

A separate strap can be used to mount a 360-degree camera on top of the security examination equipment to monitor and photograph the entire space around the candidates. Alternatively, cameras can be installed on the sides and back of the safety examination equipment to obtain a 360-degree view of the surrounding environment of the safety examination equipment.

The iris surveillance camera can be used to sense blinking, and can also be used to control the display or other functions of the monitor. In addition to typing on the virtual keyboard or operating the virtual mouse, the movements of the hands and fingers can also be used as gestures to control the display of the security examination device or other functions as described above.

One way to add a functioning keyboard to a safe testing device is to use a virtual keyboard. The virtual keyboard can be displayed in the examinee's field of vision, just like his hand relative to the keyboard. By watching candidates type the character they want to press, they can be recorded and converted into characters on the display. In addition, a physical keyboard can be used. However, this brings some unique problems. The keyboard must never transmit data to any place other than the safety test equipment. Otherwise, candidates can use the keyboard to send questions to cheating partners. It is possible to design a keyboard with a hidden switch that can send wireless signals to cheating partners who are not registered by the security test equipment. If the safety test equipment determines that the candidate is typing but does not receive the result of the typing, the test can be terminated. In addition, the keyboard can be covered with the external force intrusion device detector CID, and can use encryption to communicate with the security test device. The virtual keyboard can be confirmed by a camera installed in the infrastructure, but this can be difficult, and this method can be defeated by moving the keyboard slightly.

Other sensors can be installed on the safety test equipment to monitor the health of the candidates. For example, a heart rate monitor, a blood flow sensor and a temperature sensor are three possibilities. Some versions of the safety examination device have an EKG electrocardiogram (ECG) sensor, which can be used for biometric identification and health monitoring as described above.

Sensors that control ambient light can be added to help control various cameras. It is also possible to add a capacitive sensor or microscope lens to determine the contact of the contact microphone with the skin. As mentioned above, blood flow sensors and skin temperature sensors can also be used for this purpose. In addition, by using a camera with a very small depth of field or by using structured light or a laser irradiated only at an oblique angle, a picture of the facial skin can be used to measure the distance from the skin.

A sound wave directional microphone array or similar device can also be used to determine the incoming direction of sound. This can enhance the effect of contact microphones used to monitor when candidates speak or otherwise produce sounds. Other combinations of multiple microphones can be used to locate the voice source. For example, earplugs may include other sensors, such as microphones or microphone arrays. In some embodiments, at least two microphones from the microphone array may be arranged along the direction or at least close to the mouth of the user (candidate). By using the information received by one or more directional sensors, the controller in the earbud or other device can determine which microphones in the microphone array should be activated to obtain this information feature. By activating only those microphones arranged in the direction toward or near the mouth, the spatial filtering method is applied to ignore the ambient audio signals that are not emitted near the mouth of the user (candidate).

If necessary, ultrasonic, IR (infrared), RF (radio frequency signal) and similar sensors can be added. You can add tactile or touch sensors to control the safety test equipment with your fingers. Sensors such as these have been used in Google Glass.

A system that can establish direct communication with devices separated from the body from the human brain is under development. This concept is to allow the brain to directly communicate with the Internet. Such a system can be used to overcome the cheating prevention system described in this article. Therefore, when the technology can be applied, the device can be added to the security examination device to monitor the presence or absence of such communication. Various palm-sized sensors (including cameras) can also be used. , RF transmitter and LED) to control the safety test equipment function.

9. One advantage of locking the display in place and locking the display to a physical location is that candidates can change the view by simply moving their head. For example, depending on the amount of available memory, multiple URLs or multiple TV screens can be used, and candidates can switch between them only by moving their heads. By using the security test equipment design in Figure 18-26, each screen can be equivalent to a large-screen TV. Since the safety test equipment knows which screen the examinee is looking at, it can also control the sound accompanying each screen.

10. Education. Although the descriptions and examples used here mainly focus on the application of examinations, the same safe examination equipment can also be used for distance education. Using the large display shown in Figures 18-26, students can watch MOOC or other educational courses. For example, after completing an online open course (MOOC), students can immediately take a security exam to earn credits.

11. Software, various software modules that can reside in the safety test equipment include: a. Eyeball iris capture; b. Determine eyeball position; c. Read electrocardiogram and human biometric identification; d. Finger and hand recognition and monitoring; e Human voice biometric recognition; f. Recognize and detect the sound emitted from the examinee’s mouth; g. Recognize suspicious objects in the iris or lateral surveillance camera image; h. Establish a password and secret code based on iris recognition Key data; i. disconnection detection of the external force intrusion device detector CID; j. school course registration software, various software modules that can reside on the server that interacts with the security test equipment include: a. With universities or other test providers Information communication; b. Receive test questions, randomly rearrange the order and encryption of test questions; c. Human eye iris recognition; d. Communication with all security test equipment;

12. In conclusion, although several preferred embodiments have been shown and described above, it is also possible to use other sensors, combinations of materials and components of different sizes to perform the same functions described above. At least one of the inventions disclosed herein is not limited to the embodiments explained above, but should be determined by the appended claims. However, after considering this specification and the accompanying drawings disclosing its preferred embodiments, many changes, modifications, variations and other uses and applications of the present invention will become apparent to those skilled in the art. All these changes, modifications, changes and other uses and applications that do not depart from the spirit and scope of the present invention are considered to be covered by the present invention, which is only limited by the appended claims.

1000: Safety test equipment 1002: shell 1003: knob 1004: display 1005: knob 1006: glasses frame 1007: clamping mechanism 1009: Wire 1010: Wire 1011: screw 1012: Contact microphone 1013: spring 1014: contact speaker 1016: External force intrusion device detector CID 1018: electronic equipment 1022: display 1050: USB interface 1052: shell 1054: PC board 1056: External Force Intrusion Device Detector CID 1058: USB interface pins 1060: small hole 1110: film 1302: Candidate 1304: display 1306: Central Computer 1410: monitoring equipment 1412: display 1414: Front view camera 1416: Microphone 1418: speaker 1420: shell 1422: frame 1424: USB port 1426: iris or retina scanning camera 1428: LED lights 1430: Camera 1800: Safety test equipment 1802: iris surveillance camera 1804: reflective mirror 1806: Lateral surveillance camera 1808: headband 1810, 1812: sensor components 1814: battery 1816: adjusting knob 1818: Front surveillance camera 1820: mirror 1828: display 1830: lens 1854: lens 1856: Polarizing beam splitter and mirror assembly 1900: Safety test equipment 1902: reflective lens 1904: Iris surveillance camera 1906: Front surveillance camera 1908: display 1910: Side surveillance camera 1912: Forehead cushion 1916: battery 1914: belt 1918: adjusting knob 1920: printed circuit board 1922: Contact microphone 1924: contact speaker 1926: slender belt 1952: External Force Intrusion Device Detector CID 1954: Contact microphone 1956: contact speaker 1958: Interface 1960: PCB board 1962: side surveillance camera 1964: Front surveillance camera 1966: iris surveillance camera 1968: display 1970: cable 22: CID 24: Audio microphone

Figures 1 to 4: show the preferred form of safety examination equipment.

Figure 5: Shows how to connect to the USB interface used to supply power to the security test equipment through the External Force Intrusion Device Detection System (CID).

Figure 6 and Figure 7: shows the use of a contact speaker with a contact microphone to verify whether the contact speaker is in contact with the examinee’s facial skin, and also uses EKG human biometrics to further verify the correct placement of the contact microphone and obtain Additional human biological characteristics.

Figure 8: shows the use of the device according to the present invention in a room full of candidates, where each device is connected to the central computer through a USB port.

Figure 9: is a view similar to Figure 8 with a wireless connection through a router associated with each table, and where the candidates are using paper to record their exam answers.

Figure 10: is a perspective view of a head-mounted glasses-type device, the head-mounted glasses-type device includes electronic components with several sensors, cameras and displays, these sensors, cameras and displays are all prepared by using the contents of the present disclosure External force intrusion device detection system (CID) protection.

Figure 11: is a perspective view of the device seen from the back of Figure 10.

Figures 12 to 17: shows the preferred design of a safety examination device for a single display for both eyes.

Figures 18 to 26: shows the preferred design of two large display devices for both eyes.

Figure 27 to Figure 30: shows the equipment of Figures 18-26 with the external force intrusion device detection system (CID) installed.

1000: Safety test equipment

1002: shell

1003: knob

1004: display

1005: knob

Claims (10)

A device that includes: A housing, which includes a display portion, and the display portion includes at least one display for displaying content; An optical element, which is coupled to the housing and arranged on the optical path of the display part, and reflects the content displayed by the display part and allows people to watch through it; A side-view camera system, which is connected to the housing, and shoots images from a position on each side of the housing toward the opposite side of the housing and under the optical element. An iris camera system, which is coupled to the housing, and photographs and images the area behind the housing from at least one position on the housing to include at least one of the left eye and the right eye of a person; A front-view camera system, which is connected to the housing, and photographs and images an area in front of the housing from one or more positions on the housing; and a processor, which is arranged in the housing And coupled to the side-view camera system, the iris camera system and the front-view camera system, the processor analyzes and processes: The image obtained by the side-view camera system to determine whether there is a suspicious peeping imaging device in any obtained image; The image obtained by the iris camera system is used to determine the presence and position of at least one iris of a person; and The image obtained by the forward-looking camera system is used to determine whether a specific suspicious object exists. The device as described in item 1 of the scope of the patent application, further comprising a first elongated belt, the first elongated belt has opposite first and second ends, and is coupled at the first and second ends To the housing, the first elongated strap extends rearward from the housing to form a closed loop so that the housing can be fixedly placed on a person's head. The device described in item 2 of the scope of the patent application further includes: a forehead pad arranged at the front of the housing; a second elongated strap close to the housing, and includes a contact microphone and a contact microphone A speaker; and an external force intrusion device detection system arranged on the outer surface of the housing. The device according to claim 1, wherein the side-view camera system includes: on the first side of the housing and arranged inside the first side of the housing, and A first side monitoring camera that is aimed at the area below the optical element to shoot and image; and a second side monitoring camera on the second side of the housing, and is arranged on the second side of the housing The inside and aim at the lower area of the optical element to shoot and image. The device according to claim 1, wherein the display part includes two horizontally and side by side display parts, and the iris monitoring camera system includes: a first iris monitoring camera, which is arranged in the housing On the body, a person's left eye is photographed and imaged; and a second iris monitoring camera is arranged on the housing to photograph and image the person's right eye. The device according to claim 1, wherein the processor analyzes the image obtained by the iris monitoring camera system to determine whether there is a peeping imaging device in any obtained image. The device according to claim 1, wherein the processor is further configured to analyze the image obtained by the iris monitoring camera system, and based on the result of the image analysis and the previously obtained biological The feature data is compared and biometric identification is performed. The device according to the first item of the scope of patent application, wherein, when the image obtained by the side-view camera system is analyzed to determine whether there is a peeping imaging device in any of the obtained images, the iris monitoring camera system is analyzed The processor uses pattern recognition technology when the acquired images determine the presence and position of the iris, and when analyzing the images acquired by the forward-looking camera system to determine whether there is a suspicious specific object. The device according to the first item of the patent application, wherein the optical element includes a semi-reflective coating on the inner surface in the light path of the display part, and an anti-reflective coating on the outer surface to allow maximum The ambient light passes through the optical element. The device according to claim 1, wherein the housing includes a frame configured to be located on a person's head, the display portion has a first portion and a second portion, and the optical element includes a reflective lens , The reflecting lens is arranged on the frame at least in one position. When the frame is on the person’s head, it is partially in front of the person’s eyes, and is configured to allow the person to simultaneously view the environment in front of the person and the content displayed on the display portion. When the frame is on the person’s head, The reflecting lens reflects the display content of the first part to the left eye of the person, and reflects the content of the second part of the display part to the right eye of the person.

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