CN112014075A - Head-mounted equipment field-of-view measurement system - Google Patents
Head-mounted equipment field-of-view measurement system Download PDFInfo
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- CN112014075A CN112014075A CN202010944419.8A CN202010944419A CN112014075A CN 112014075 A CN112014075 A CN 112014075A CN 202010944419 A CN202010944419 A CN 202010944419A CN 112014075 A CN112014075 A CN 112014075A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
- G01M11/0214—Details of devices holding the object to be tested
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Abstract
The invention discloses a head-mounted equipment view field measurement system, which comprises: the control panel is used for sending, receiving, analyzing and calculating information; the spherical vault is internally provided with a space for a subject to wear head-mounted equipment to carry out visual field measurement, and a plurality of light emitting parts for providing light spots required by the visual field measurement are arranged on the intersection points of the longitude and latitude lines of the inner spherical surface of the spherical vault; the plurality of light-emitting pieces are electrically connected with the control board through cables and controlled by the control board to be turned on or turned off; and the feedback transponder is electrically connected with the control board through a lead and is used for feeding back the response result of the tested object to the light spot on the spherical dome. The light spots required by the view field measurement are arranged on the inner spherical surface of the spherical vault, and due to the fact that the spherical caliber of the spherical vault is large, the number of the light spots which can be arranged on the inner spherical surface of the spherical vault is large, the distribution range of the light spots on the inner spherical surface of the spherical vault is wide, the view field measurement range of the head-mounted equipment can be expanded, the stability of the view field measurement result is improved, and the view field design of various head-mounted equipment can be evaluated.
Description
Technical Field
The invention relates to the technical field of head-mounted equipment detection, in particular to a head-mounted equipment view field measuring system.
Background
The head-mounted equipment of pilots comprises head protection equipment or visual equipment such as helmets, goggles (strong light protective glasses and windproof glasses), night vision goggles, oxygen supply masks, gas defense (biochemical) masks and the like. The size of the field of view of these equipment and their combination directly affects the spatial extent of the pilot's view, and thus flight operations.
At present, no field-of-view measurement system aiming at the head-mounted equipment of a pilot is used for designing and evaluating the head-mounted equipment of the pilot. The closest product is a medical perimeter, and the specific operation method of the medical perimeter is as follows: firstly, adjusting fixed background brightness in detection equipment; covering a single eye of the patient, and detecting the uncovered eye; fixing the head of the examinee; enabling the examinee to watch a fixed point actively; the detection program starts, and stimulation points with different brightness appear in the set test range; after the examinee senses the stimulus, the examinee actively responds to the stimulus through the indicator; seventhly, after the detection of the single eye is finished, covering the detected eye and starting to detect the opposite eye, wherein the detection mode is the same as the above; and finally making visual field examination reports of the two eyes respectively according to responses obtained by the eyes of the examinee at the two sides.
However, the medical perimeter is small (spherical surface with diameter of about 0.5 m), the number of light points is small (about 200 light points), the measurement range is small (less than 90 degrees, namely less than one-half of spherical surface), and the medical perimeter can only be used for naked eye visual field examination, can be used for ophthalmic disease diagnosis services, and cannot be used for visual field (visual field) measurement of head-mounted equipment.
Disclosure of Invention
In view of the above, the present invention provides a measurement system with a large measurement range, a large number of light spots, and good measurement result stability, which is applicable to the field measurement of head-mounted equipment, and is used for evaluating the field design of various types of head-mounted equipment.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a headgear field of view measurement system comprising:
the control panel is used for sending, receiving, analyzing and calculating information;
the spherical vault is internally provided with a space for a subject to wear head-mounted equipment to carry out visual field measurement, and a plurality of light emitting parts for providing light spots required by the visual field measurement are arranged on the intersection points of the longitude and latitude lines of the inner spherical surface of the spherical vault; the plurality of luminous pieces are electrically connected with the control board through cables and controlled by the control board to be lightened or extinguished;
and the feedback transponder is electrically connected with the control board through a lead and is used for feeding back the response result of the tested object to the light spot on the spherical dome.
Furthermore, the interval of the warp threads on the spherical fornix is 5-15 degrees, and the interval of the weft threads is 2-10 degrees.
Furthermore, the illuminating part comprises a light emitting diode, a lamp holder which is embedded into the spherical shell of the spherical vault and used for mounting the light emitting diode, and a light driving board which is fixed on the outer surface of the spherical shell of the spherical vault and electrically connected with the lamp holder, wherein the light driving board is electrically connected with the control board through a cable.
Furthermore, the spherical vault is in the shape of a shell of a three-quarter spherical surface and is formed by splicing six one-eighth spherical shells; the spherical dome forms two one-eighth spherical shells which are missing from the complete spherical shell, are positioned at the lower half part of the complete spherical shell and are connected in position.
Furthermore, the lower end of the spherical vault is provided with a plurality of upright posts for supporting the spherical vault and connecting rings which are connected to the upright posts and arranged around the upright posts; the lower end of each upright post is provided with a height adjusting mechanism for adjusting the height of the upright post.
Furthermore, a plurality of the upright posts are connected with connecting rings arranged around the upright posts, and the connecting rings are connected with at least two universal wheels.
Further, light guide plates for adjusting the internal brightness of the spherical dome are mounted on the two columns on the left side and the right side of the tested object.
Furthermore, a laser which is electrically connected with the control board and is used for determining the eyeball position of the tested object is further installed on the spherical dome, and the laser comprises a linear laser which is positioned in the direction right in front of the tested object and a cross laser which is positioned in the direction of the top of the head of the tested object.
Further, a camera electrically connected with the control board and used for monitoring the head posture of the tested object is further mounted on the spherical dome, and the camera comprises a first camera positioned on the spherical dome in the direction right in front of the tested object and a second camera positioned on the spherical dome on the left side or the right side of the tested object.
Further, a mandible support bracket used for fixing the posture of the tested object is arranged in the spherical fornix.
Furthermore, the lower jaw support bracket comprises a base, a support rod, a screw rod, a lower jaw support and a limit screw, wherein one end of the support rod is fixed on the base, the screw rod is vertically movably installed on the support rod through an adjusting ring, the lower jaw support is arranged at the top of the screw rod, and the limit screw is installed on the support rod and used for preventing the screw rod from loosening.
Further, the control panel is also electrically connected with a display, and the display is used for displaying the coordinates of the light spots on the spherical dome and the response result of the tested object to each light spot on the spherical dome.
Further, the control panel electricity is connected with the host computer, the host computer includes:
the information display module is used for displaying the identity information of the subject and the information of the head-mounted equipment worn by the subject on the display;
the serial port control module is used for controlling the on and off of the light-emitting piece on the spherical dome through the control board;
the response feedback module is used for receiving a response result of the tested object fed back by the feedback responder to the light spot on the spherical dome through the control board;
the response rate calculation module is used for calculating the response rate according to the response result provided by the response feedback module;
and the data management module is used for storing the identity information of the subject, the information of the head-mounted equipment worn by the subject and the calculated response rate obtained by the subject through field-of-view measurement.
The technical scheme of the invention has the following advantages:
1. the invention provides a visual field measuring system of a head-mounted device, which is characterized in that a plurality of light-emitting parts for providing light spots required by visual field measurement are arranged on the intersection points of the longitude and latitude lines of the spherical surface in a spherical fornix, a tested object is subjected to visual field measurement in the spherical fornix after wearing the head-mounted device, and the response result of the tested object to the light spots on the spherical fornix is fed back to a control panel through a feedback responder, so that the visual field measurement of the head-mounted device is completed. The spherical caliber of the spherical vault is large, the number of light spots which can be distributed on the inner spherical surface of the spherical vault is large, and the distribution range of the light spots on the inner spherical surface of the spherical vault is wide, so that the visual field measurement range of the head-mounted equipment can be expanded, the stability of the visual field measurement result is improved, and the method is used for evaluating the visual field design of various types of head-mounted equipment.
2. According to the visual field measuring system for the head-mounted equipment, the spherical dome is in a shell shape of a three-quarter sphere and is formed by splicing six one-eighth spherical shells, the interval of the longitude lines on the spherical dome is 5-15 degrees, the interval of the latitude lines is 2-10 degrees, enough light spots can be arranged on the intersection points of the longitude lines and the latitude lines on the three-quarter sphere of the spherical dome, and the reliability of the visual field measuring result of the head-mounted equipment is improved.
3. According to the head-mounted equipment view field measurement system provided by the invention, the plurality of columns at the lower end of the spherical vault and the height adjustment mechanisms on the columns can adjust the height of the spherical vault according to different sitting heights and eye heights of a tested object, so that the reliability of a measurement result obtained by the head-mounted equipment view field measurement system is ensured.
4. According to the head-mounted equipment visual field measurement system provided by the invention, the universal wheels are arranged on the connecting rings between the upright posts, so that the position of the spherical fornix is convenient to adjust, and the comfort of a tested object in the test process is better.
5. The light guide plates on the upright columns on the two opposite sides of the tested object can adjust the brightness inside the spherical vault, reduce the visual error and improve the stability of the visual field measurement result.
6. The head-mounted equipment visual field measuring system provided by the invention comprises the linear laser positioned in the front direction of the tested object and the cross laser positioned in the top direction of the tested object, and can be used for determining the eye position of the tested object in a matched manner before the visual field measurement, so that the eye position of the tested object is ensured to be positioned at the center of the spherical vault, and the stability of the visual field measurement result is improved.
7. According to the head-mounted equipment visual field measuring system provided by the invention, the cameras are arranged in front of and on the left side of the spherical dome, so that the head posture of the tested object can be monitored, and when the head posture of the tested object deviates from the posture of the tested object, a control signal for stopping measurement is sent to the control board, so that the stability of the visual field measuring result is ensured.
8. According to the visual field measuring system of the head-mounted equipment, the lower jaw of the tested object can be supported by the lower jaw support bracket in the spherical fornix, so that the head posture of the tested object is stable during testing, and the stability of a measuring result and the comfort of the tested object during the testing process are improved.
9. The visual field measuring system of the head-mounted equipment provided by the invention has the advantages that the vertical height of the lower jaw support bracket is adjustable, and the visual field measuring system can meet the requirements of different tested objects on height adjustment of different eye positions.
10. The head-mounted equipment view field measurement system provided by the invention displays the coordinates of the light points on the spherical dome and the response result of the tested object to each light point on the spherical dome on the display, and can more intuitively display the view field measurement result of the head-mounted equipment.
11. According to the head-mounted equipment view field measuring system provided by the invention, the control board receives an instruction of the upper computer, accurately controls the light emitting sequence, the time length, the time interval, the light emitting intensity and the feedback response signal of the light emitting diode, and controls the light driving board to realize the instruction information.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a spherical vault structure in a headset visual field measurement system in an embodiment of the invention;
fig. 2 is a schematic structural view of a mandible support bracket in an embodiment of the invention;
FIG. 3 is a control block diagram of a headgear field of view measurement system in an embodiment of the present invention;
FIG. 4 is a software system block diagram of a headgear field of view measurement system in an embodiment of the present invention;
FIG. 5 is a field of view plot and a test schematic of a first region of a front hemisphere of a headset field of view measurement system in an embodiment of the present invention;
FIG. 6 is a field of view plot for the rear hemisphere of a headgear field of view measurement system in an embodiment of the present invention.
Description of reference numerals: 1. a spherical dome; 2. a lower jaw support bracket; 21. a base; 22. a support bar; 23. a screw rod; 24. lower jaw support; 25. an adjusting ring; 26. a limit screw; 3. a column; 4. a connecting ring; 5. a height adjustment mechanism; 6. a universal wheel; 7. a light guide plate;
10. an upper computer; 20. a main control board; 30. a control panel; 40; a camera; 50. a feedback transponder; 60. a light emitting diode; 70. a light driving board;
100. an information display module; 200. a serial port control module; 300. a response feedback module; 400. a response rate calculation module; 500. and a data management module.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A headgear field of view measurement system as shown in fig. 1-6 includes a mechanical structure system, a measurement control system, and a software processing system.
In the present embodiment, the mechanical structure system is used to provide a visual field test environment for the subject wearing the headgear, and includes a spherical vault 1, a mandible support frame 2, a light emitting diode 60 (light spot), a laser, a camera 40, and the like.
As shown in fig. 1, the spherical dome 1 is in the shape of a three-quarter spherical shell and is formed by splicing six one-eighth spherical shells; the spherical dome 1 forms two one-eighth spherical shells which are missing from the complete spherical shell, are positioned at the lower half part of the complete spherical shell and are connected in position. The inside of the spherical vault 1 is provided with a space for a subject to wear a head-mounted device for field of view measurement, and the subject can be in the spherical vault 1 through the missing part of the lower half part of the spherical vault 1. The lower extreme of spherical vault 1 is equipped with four stands 3 that are used for supporting spherical vault 1, and four stands 3 are vertical to be placed and circumference evenly arranges in spherical vault 1's periphery. The lower part of the four upright posts 3 is connected with a connecting ring 4 with the diameter of 2m, and the connecting ring 4 is a special metal circular connecting piece and is used for connecting the four upright posts 3 together so as to improve the stability of the whole structure. The lower end of each upright post 3 is provided with a height adjusting mechanism 5 for adjusting the height of the upright post 3; the height adjusting mechanism 5 can adjust the height of the spherical vault 1 according to different sitting heights and eye heights of the tested object, and the reliability of a measurement result obtained by the head-mounted equipment view field measurement system is ensured. Three universal wheels 6 are arranged on the connecting ring 4, and the height adjusting mechanisms 5 of the four upright posts 3 are retracted when the connecting ring moves, so that the universal wheels 6 fall to the ground; the universal wheel 6 is arranged to conveniently adjust the position of the spherical fornix 1, so that the comfort of the tested object in the test process is better.
In the embodiment, the inner spherical surface of the spherical dome 1 divides warps and wefts, the warps are separated by 15 degrees, the wefts are separated by 10 degrees (a first area and a third area) and 5 degrees (a second area), and the intersections of the warps and the wefts are 505. The intersection point of the longitude and latitude lines is used for installing a luminous piece for providing a light spot required by the visual field measurement, and the luminous piece is electrically connected to the control board 30 through a cable and is controlled by the control board 30 to be turned on or turned off. Specifically, the light emitting element includes a light emitting diode 60, a lamp holder embedded in the spherical shell of the spherical dome 1 and used for mounting the light emitting diode 60, and a light driving board 70 fixed on the outer surface of the spherical shell of the spherical dome 1 and electrically connected with the lamp holder, wherein the light driving board 70 is electrically connected to the control board 30 through a cable, and the control board 30 is electrically connected to the main control board 20 of the upper computer 10. Wherein, the light emitting diode 60 can adopt a 3mm red and blue light emitting diode 60.
According to the visual field measurement system for the head-mounted equipment, the spherical dome 1 is in a three-quarter spherical shell shape and is formed by splicing six one-eighth spherical shells, the spherical caliber of the spherical dome 1 is large, the number of light spots which can be distributed on the inner spherical surface of the spherical dome 1 is large, the distribution range of the light spots on the inner spherical surface of the spherical dome 1 is wide, the visual field measurement range of the head-mounted equipment which is to be worn in the spherical dome 1 can be enlarged, the stability of a visual field measurement result is improved, and the visual field measurement system can be used for evaluating the visual field design of various types of head-mounted equipment.
In the present embodiment, a laser electrically connected to the main control board 20 and used for determining the eyeball position of the subject is further mounted on the spherical dome, and the laser includes a line-shaped laser located in the direction right in front of the subject and a cross-shaped laser located in the direction of the vertex of the subject. The arrangement of the linear laser and the cross laser can be matched with the determination of the eye position of the tested object before the visual field measurement, so that the eye position of the tested object is ensured to be positioned at the center of the spherical fornix 1, and the stability of the visual field measurement result is improved.
In the present embodiment, a camera 40 electrically connected to the main control board 20 and used for monitoring the head posture of the subject is further mounted on the spherical dome, and the camera 40 includes a first camera 40 located on the spherical dome in the direction right in front of the subject and a second camera 40 located on the spherical dome on the left or right side of the subject. The cameras 40 are respectively arranged in front of and on the left side or the right side of the spherical dome, the head posture of the tested object can be monitored, and when the head posture of the tested object deviates from the posture of the tested object, a control signal for stopping measurement is sent to the measurement control system, so that the stability of the visual field measurement result is ensured.
In the present embodiment, light guide plates 7 are provided on the pillars 3 on the left and right sides of the subject, and the light guide plates 7 can adjust the internal brightness of the spherical dome.
In the embodiment, a lower jaw support bracket 2 for fixing the posture of the subject is arranged in the spherical fornix 1. Specifically, the lower jaw support 2 comprises a base 21, a supporting rod 22 with one end fixed on the base 21 and adjustable in height, and a lower jaw 24 connected to one end of the supporting rod 22 opposite to the base 21; the support rod 22 comprises at least two hollow support rods which are sequentially sleeved and a locking piece for locking two adjacent hollow support rods. Specifically, the locking piece is a locking screw. The lower jaw of the tested object can be supported by the lower jaw support bracket 2 in the spherical vault 1, so that the head posture of the tested object is stable when the tested object is tested, and the stability of the measurement result and the comfort degree of the tested object in the testing process are improved. The vertical height of the lower jaw support bracket 2 is adjustable, so that the lower jaw support bracket can meet the adjustment requirements of different subject bodies on different eye positions.
The measurement control system comprises a light random control module and a signal feedback response module; the light-following machine control module is arranged on the control panel 30, the signal feedback response module is arranged on the main control panel 20, the control panel 30 is connected with the main control panel 20 through a lead, the main control panel 20 is electrically connected with the feedback transponder 50 through a lead, and the feedback transponder 50 is used for feeding back the response result of the tested object to the light-emitting diode 60 (light spot) on the spherical dome to the main control panel 20; the main control board 20 sends instructions to the control board 30, and the control board 30 controls the light emitting sequence, the time duration, the time interval, the light emitting intensity, and the like of the light emitting diodes 60 (light spots) on the spherical domes 1 in response to the instructions. Specifically, the control board 30 also serves as a power supply for supplying power to the laser, the camera 40, and the light guide plate 7, respectively.
The software processing system is loaded on a PC platform, and the PC platform provides a human-computer interaction interface. The software processing system comprises an information display module 100, a serial port control module, a response feedback module 300, a response rate calculation module 400, a data management module 500 and the like. The time and the place for measurement, the information of the test participants, the information of the tested personnel, the information of the head-mounted equipment and the like set by the head-mounted equipment view field measurement system are recorded and then stored in the information query and storage module, and can be displayed on a human-computer interaction interface; the serial port control module is used for controlling the light spots on the spherical dome through the main control board 20 and the control board 30, and the response feedback module 300 is used for displaying a response result on a human-computer interaction interface and calculating a response boundary value; the response rate calculation module 400 is used for counting the response rates of different subjects to the head-mounted equipment; the data management module 500 is used to store various information in the database, and can call, view and modify data in the database according to instructions.
The head-mounted visual field measuring system comprises a head-mounted visual field measuring system, wherein during measurement, a tested object enters a spherical dome, the tested object is seated in a seat in the spherical dome, a lower jaw 24 of the tested object is supported on a lower jaw 24 support, the height of the lower jaw 24 support is adjusted, the head posture of the tested object is in a relatively comfortable position, the brightness of the interior of the spherical dome is adjusted through a light guide plate 7, the eye position height of the tested object is determined through a pair of lasers, then the height adjusting mechanism 5 on a stand column 3 is adjusted, the height of the spherical dome is adjusted, the eye position of the tested object is located in the center of the spherical dome, a light random control module controls a light spot on the spherical dome to be randomly lightened through a control plate 30, and after the tested object sees that the light spot is lightened, a key of a feedback transponder 50 is pressed to mark on a light spot coordinate graph, as shown in fig. 5. Before unlit, mark as "black circle"; when the lamp is lightened and responded, the black circle is changed into a hollow circle with a plus sign inside; the "black circles" that light up without responding become "open circles". Each time the light is on, only one feedback (including the sound emitted when the transponder is pressed or released) is responded, and multiple presses are invalid. The lamp does not light and does not respond when pressed; when the lamp is on, the response is not timely (the time that the non-pressed key is overtime is not seen), the mark is a hollow circle, and the lamp is on when the next point is waited.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (13)
1. A headgear field of view measurement system, comprising:
the control panel (30) is used for sending, receiving, analyzing and calculating information;
the spherical vault (1) is internally provided with a space for a subject to wear head-mounted equipment for field measurement, and a plurality of light emitting parts for providing light spots required by the field measurement are arranged on the intersection points of the longitude and latitude lines of the inner spherical surface of the spherical vault; the plurality of luminous elements are electrically connected with the control board (30) through cables and controlled by the control board (30) to be lightened or extinguished;
and the feedback transponder (50) is electrically connected with the control board (30) through a lead and is used for feeding back the response result of the tested object to the light spot on the spherical dome.
2. The system for measuring the visual field of the head-mounted equipment according to claim 1, wherein the distance between the warps on the spherical fornices (1) is 5-15 degrees, and the distance between the wefts is 2-10 degrees.
3. The system for measuring the visual field of the head-mounted equipment according to claim 1, wherein the light-emitting member comprises a light-emitting diode (60), a lamp holder embedded in the spherical shell of the spherical dome (1) and used for mounting the light-emitting diode (60), and a light driving plate (70) fixed on the outer surface of the spherical shell of the spherical dome (1) and electrically connected with the lamp holder, wherein the light driving plate (70) is electrically connected with the control board (30) through a cable.
4. The system for measuring the field of view of headgear according to claim 1, wherein the spherical dome (1) is in the shape of a three-quarter sphere shell and is formed by splicing six one-eighth spherical shells; the spherical fornix (1) forms two one-eighth spherical shells which are lacked by the complete spherical shell, are positioned at the lower half part of the complete spherical shell and are connected in position.
5. The system for measuring the visual field of the head-mounted equipment according to claim 1, wherein the lower end of the spherical vault (1) is provided with a plurality of columns (3) for supporting the spherical vault (1) and a connecting ring (4) connected to the plurality of columns (3) and arranged around the plurality of columns (3); the lower end of each upright post (3) is provided with a height adjusting mechanism (5) for adjusting the height of the upright post (3).
6. The system of claim 5, wherein a plurality of said uprights (3) are connected with a connecting ring (4) arranged around said plurality of uprights (3), said connecting ring (4) being connected with at least two universal wheels (6).
7. The system of claim 5, wherein light guide plates (7) for adjusting the brightness inside the spherical dome are mounted on both the two pillars (3) on the left and right sides of the subject.
8. The system according to any one of claims 1-6, wherein the spherical dome is further provided with a laser electrically connected with the control board (30) for determining the eyeball position of the subject, and the laser comprises a line-shaped laser positioned in the direction right in front of the subject and a cross-shaped laser positioned in the direction of the top of the head of the subject.
9. The system according to any one of claims 1-6, wherein a camera (40) electrically connected with the control board (30) and used for monitoring the head posture of the tested object is further mounted on the spherical dome, and the camera (40) comprises a first camera (40) positioned on the spherical dome in the direction right in front of the tested object and a second camera (40) positioned on the spherical dome at the left side or the right side of the tested object.
10. The system according to any one of claims 1 to 6, wherein the spherical vault (1) is provided with a mandible support (2) for fixing the posture of the subject.
11. The headgear field of view measurement system according to claim 10, wherein the chin rest support (2) comprises a base (21), a support rod (22) having one end fixed on the base (21), a lead screw (23) vertically movably mounted on the support rod (22) through an adjustment ring (25), a chin rest (24) disposed on top of the lead screw (23), and a limit screw (26) mounted on the support rod (22) for preventing the lead screw (23) from loosening.
12. The system according to any one of claims 1-6, wherein the control board (30) is further electrically connected to a display for displaying the coordinates of the light points on the spherical dome and the response of the subject to each light point on the spherical dome.
13. The headgear field of view measurement system according to claim 12, wherein the control board (30) is electrically connected to an upper computer (10), the upper computer (10) comprising:
the information display module (100) is used for displaying the identity information of the subject and the information of the head-mounted equipment worn by the subject on the display;
the serial port control module (200) is used for controlling the on and off of the luminous elements on the spherical dome through the control board (30);
a response feedback module (300) for receiving the response result of the subject to the light spot on the spherical dome fed back by the feedback transponder (50) through the control board (30);
the response rate calculation module (400) is used for calculating the response rate according to the response result provided by the response feedback module (300);
and the data management module (500) is used for storing the identity information of the subject, the information of the head-mounted equipment worn by the subject and the calculated response rate obtained by the subject through field-of-view measurement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010944419.8A CN112014075A (en) | 2020-09-09 | 2020-09-09 | Head-mounted equipment field-of-view measurement system |
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| CN202010944419.8A CN112014075A (en) | 2020-09-09 | 2020-09-09 | Head-mounted equipment field-of-view measurement system |
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| CN112014075A true CN112014075A (en) | 2020-12-01 |
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| CN202010944419.8A Pending CN112014075A (en) | 2020-09-09 | 2020-09-09 | Head-mounted equipment field-of-view measurement system |
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2020
- 2020-09-09 CN CN202010944419.8A patent/CN112014075A/en active Pending
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