CN110063709B - Automatic visual stimulus presentation device, visual experiment system and visual experiment method - Google Patents
Automatic visual stimulus presentation device, visual experiment system and visual experiment method Download PDFInfo
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- CN110063709B CN110063709B CN201810069303.7A CN201810069303A CN110063709B CN 110063709 B CN110063709 B CN 110063709B CN 201810069303 A CN201810069303 A CN 201810069303A CN 110063709 B CN110063709 B CN 110063709B
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Abstract
The invention discloses an automatic visual stimulus presentation device, a visual experiment system and a visual experiment method, wherein the visual stimulus presentation device comprises the following steps: a shielding box; the supporting body is arranged in the shielding box, movably assembled with the shielding box and used for placing a plurality of visual stimuli, and the visual stimuli is provided with a plurality of visual information expressing parts; the driving device is assembled with the bearing body and drives the bearing body to drive the appointed visual stimulus to move, and the shielding box is provided with an observation port which exposes the appointed visual stimulus when the appointed visual stimulus moves to an appointed position so that an observer sees the appointed visual information expression part on the appointed visual stimulus to recognize the visual information of the appointed visual information expression part; and the control circuit board is connected with the driving device and controls the driving device to work. The purpose of automatically presenting three-dimensional visual stimuli is achieved, and the purposes of high authenticity and reliability of obtained experimental data and high experimental efficiency are achieved.
Description
Technical Field
The invention relates to the technical field of visual experiments, in particular to an automatic visual stimulus presentation device, a visual experiment system and a visual experiment method.
Background
Under a specific lighting environment, the identification conditions of the visual information expression part by different observers may be different. In the course of conducting various visual experiments, two common ways are available, one of which is: the two-dimensional pictures bearing different visual information expression parts are switched on the display screen for an observer to identify, because the two-dimensional pictures are difficult to present real environmental conditions, the authenticity and the reliability of the obtained experimental data are not high, and meanwhile, in the process of switching the two-dimensional pictures on the display screen, a light source carried by the display screen generally has certain influence on the presentation of the two-dimensional pictures, so that the authenticity and the reliability of the experimental data are further reduced; the second step is as follows: bear the three-dimensional entity of different visual information expression portions through artifical switching, visual stimulus promptly to supply the observer to discern, and discern the result through artifical record, this kind of mode is real problem inadequately although can avoid the two-dimensional picture, but artifical switching not only consumes the manpower, leads to experimental efficiency not high, makes mistakes easily at artifical record identification result moreover, can't guarantee high efficiency, the high quality of visual experiment.
Disclosure of Invention
The embodiment of the invention aims to provide an automatic visual stimulus presentation device, a visual experiment system and a visual experiment method, which solve at least one of the technical problems to a certain extent, have the advantages of automatic presentation of three-dimensional visual stimuli, high authenticity and reliability of obtained experiment data and high experiment efficiency.
The present invention provides in a first aspect an automatic visual stimulus presentation device comprising:
a shielding box;
the supporting body is arranged in the shielding box, movably assembled with the shielding box and used for placing a plurality of visual stimuli, and the visual stimuli is provided with a plurality of visual information expressing parts;
the driving device is assembled with the bearing body and drives the bearing body to drive the appointed visual stimulus to move, and the shielding box is provided with an observation port which exposes the appointed visual stimulus when the appointed visual stimulus moves to an appointed position so that an observer sees the appointed visual information expression part on the appointed visual stimulus to recognize the visual information of the appointed visual information expression part;
and the control circuit board is connected with the driving device and controls the driving device to work.
Realize the automatic presentation device of visual stimulus thing of above-mentioned scheme, when needing to carry out the vision experiment, place visual stimulus thing on the supporting body in advance, through the work of control circuit board control drive arrangement, and then drive the supporting body motion to realize showing at random or showing visual information expression portion alone and distinguish in order to supply the observer. The device presents the mode of visual information performance portion, presents three-dimensional entity and common display screen with common manual work and presents the two-dimensional picture and compare, has the advantage that the three-dimensional visual stimulus of automatic presentation, can simulate actual observation environment by the great degree, and not only gained experimental data authenticity is higher with the reliability, and experimental efficiency is higher moreover, and the small in noise of this kind of structure is less to observer's influence, has further improved gained experimental data authenticity and reliability.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the supporting body is rotatably and rotatably engaged in the shielding box, the driving device drives the supporting body to rotate in the shielding box, the viewing port is disposed at the top of the shielding box, the supporting body is provided with a through hole corresponding to a position where the visual stimulus is located,
The driving device includes:
the first power source is connected with the control circuit board and drives the bearing body to rotate;
the second power source is connected with the control circuit board;
and the push rod is arranged corresponding to the observation port, extends out of the through hole corresponding to the observation port under the driving of the second power source and pushes the appointed visual stimulus out of the observation port so as to be identified by an observer.
Realize the automatic presentation device of visual stimulus of above-mentioned scheme, for the convenience of observer discerns the visual information performance portion on the visual stimulus, increase push rod and second power supply, drive corresponding visual stimulus at the supporting body and move to when the position that corresponds with the viewing aperture, control circuit board control second power supply work, and then the push rod stretches out in order to release above-mentioned visual stimulus from the viewing aperture from the through-hole, and then realize that the visual stimulus exposes the shielding case completely, thereby the lateral wall that shields the case can not shelter from the visual stimulus, be favorable to restoreing real required experimental environment, gained experimental data authenticity and reliability have further been improved.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, a base attached to the surface of the supporting body is disposed on the visual stimulator, an insert sinking into the through hole is disposed on the base, and an abutting block magnetically attracted to the insert is disposed at an end of the push rod opposite to the second power source.
The bottom surface of the base is attached to the surface of the bearing body, so that the visual stimulus can be stably placed on the bearing body; meanwhile, the embedded block is sunk into the through hole, and the through hole has a blocking effect on the embedded block, so that the visual stimulus is not easy to shake in the process of being driven by the bearing body to rotate, and the visual stimulus is further favorably and stably placed on the bearing body; the mutual magnetic attraction effect of butt joint piece and abaculus, the in-process of pushing out the viewing aperture with the vision stimulus from the supporting body at the push rod, the vision stimulus is difficult for dropping from the butt joint piece, has effectively increased stability.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the base is provided with a plurality of positioning holes, the supporting body is provided with positioning pins matched with the positioning holes, and the lower edges of the positioning holes are provided with chamfers facilitating alignment of the positioning pins.
The automatic visual stimulus presentation device for realizing the scheme needs to repeatedly push out and put down the visual stimulus through the push rod in the process of presenting the visual information expression part, effectively ensures that the visual stimulus is still at the original position before pushing out after being put down through the positioning action of the positioning pin and the positioning hole, and is beneficial to the uninterrupted operation of a visual experiment; meanwhile, the lower edge of the positioning hole is provided with the chamfer, so that the positioning pin can be aligned with the positioning hole, and the positioning pin can automatically slide into the positioning hole under the action of gravity of the visual stimulus.
With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the viewing port is disposed on a side wall of the shielding box, and the observer directly recognizes the visual stimulus located in the shielding box through the viewing port, or,
the automatic visual stimulus presentation device further comprises: and the return-to-zero sensor is electrically connected with the control circuit board and is used for detecting the movement of the carrier body to the initial position.
The automatic visual stimulus presentation device realizes the scheme, the driving device drives the bearing body to move so as to drive the visual stimulus to move in the shielding box, and an observer can see the visual stimulus in the shielding box through the direct observation port, so that the structure is simple, and the efficiency of presenting the visual information expression part is higher; after the supporting body moves for a period, the return-to-zero sensor can be used for detecting whether the supporting body moves to the initial position or not, a group of experiments are predicted to be finished, statistics of multiple groups of experimental data is facilitated, and meanwhile, the return-to-zero sensor is matched with the control circuit board and has the reset calibration effect.
With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the automatic visual stimulus presentation device further includes:
A barrier between the visual stimulus and the viewer that is shielded during presentation of the visual information presenter and that evacuates when the viewer recognizes the designated visual information presenter;
and the third power source is controlled by the control circuit board, is assembled with the baffle and drives the baffle to realize blocking and evacuation actions.
According to the automatic visual stimulus presentation device for realizing the scheme, the baffle is arranged between the visual stimulus and the observer at the gap of the visual information presentation part, so that the influence of the external environment on the observer is reduced; after the visual information expression part is presented, the baffle is driven by the third power source to withdraw from the original blocking position, so that an observer can observe visual stimuli, the visual information expression part can be favorably identified by the observer, and the reliability of the experiment is improved.
With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, when the viewing port is disposed at the top of the shielding box, the third power source is specifically a servo motor mounted on the shielding box, and the servo motor drives the baffle to rotate to implement the blocking and withdrawing actions, or,
When the observation port is arranged on the side wall of the shielding box, the baffle is assembled on the shielding box in a sliding mode, the third power source is specifically an air cylinder assembled on the shielding box, and the air cylinder drives the baffle to slide so as to realize blocking and evacuation actions.
According to the automatic visual stimulus presenting device for realizing the scheme, the structure that the servo motor drives the baffle to rotate is not only stable, but also easy to realize and control, and meanwhile, the baffle can be used for separating and withdrawing; the sliding structure of the cylinder driving baffle is not only stable, but also easy to realize and control, and simultaneously the baffle can be separated and evacuated.
A second aspect of the present invention provides a vision experiment system, comprising:
an automatic visual stimulus presentation device as described above;
the operation end is used for the observer to operate so as to obtain the identification result information of the observer, and is provided with a plurality of operation parts for inputting the identification result information of the observer;
and the control processing center controls the automatic visual stimulus presentation device and the operation end to work, receives the identification result information of the observer, records and arranges the identification result information into related experimental data.
The visual experiment system for realizing the scheme can realize the purpose of automatically presenting the three-dimensional visual stimulus through the automatic visual stimulus presenting device, the authenticity and the reliability of the obtained experimental data are higher, the experiment efficiency is higher, the noise of the structure is small, the influence on an observer is small, and the authenticity and the reliability of the obtained experimental data are further improved; the system has the advantages of more reasonable layout, better experimental effect, more stable and convenient structure, wide application range, high accuracy and high reliability, and is convenient to carry out experimental data collection.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the visual experiment system further includes: and the environment simulation device is arranged around the visual stimulus to simulate various experimental environments and is a light source and/or a sound source.
Realize the vision experiment system of above-mentioned scheme, the various illumination environment of simulation can be realized to the light source that increases, for example the light at night, sunshine, sodium light etc. and the various different sound environment of simulation can be realized to the sound source that increases to obtain the observer under the simulation environment of multiple difference, to the identification result information of different visual information expression departments, accomplish various complicated experiments.
The third aspect of the present invention provides a visual experiment method, based on the above visual experiment system, the visual experiment method including:
the control processing center controls the automatic visual stimulus presentation device to work and presents the visual information presentation part for an observer to recognize;
the operating part of the operating end is operated by the observer to input the observer identification result information;
and the control processing center receives the identification result information of the observer, records and arranges the identification result information into related experimental data.
The visual experiment method of the scheme can realize the purpose of automatically presenting the three-dimensional visual stimulus, the reality and the reliability of the obtained experimental data are higher, the experimental efficiency is higher, the noise of the method is low, the influence on an observer is small, and the reality and the reliability of the obtained experimental data are further improved; the method can be suitable for simulating various different experimental environments, is convenient to collect experimental data, and is wide in application range, high in accuracy and high in reliability.
In summary, the embodiments of the present invention have the following beneficial effects:
firstly, the purpose of automatically presenting three-dimensional visual stimuli can be realized by adding the first power source and the bearing body, the authenticity and the reliability of the obtained experimental data are higher, the experimental efficiency is higher, and errors caused by manual data registration are effectively avoided by controlling the processing center to record and arrange the relevant experimental data;
Secondly, the visual stimulus is pushed out of the shielding box by adding a second power source and a push rod, so that the visual stimulus cannot be shielded by the side wall of the shielding box, the real required experimental environment can be restored, and the authenticity and the reliability of the obtained experimental data are further improved;
and thirdly, through increasing a third power source and a baffle, the baffle can be separated and blocked between the visual stimulus and an observer or between the visual stimulus and the observer, so that the influence of the external environment on the observer is reduced, the observer is prevented from being influenced to make accurate judgment, and the reliability of the experiment is further improved.
Drawings
FIG. 1 is a schematic structural diagram of a vision experiment system according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an automatic visual stimulus presentation device according to an embodiment of the present invention;
fig. 3 is a schematic view showing the internal structure of the automatic visual stimulus presentation device according to the first embodiment of the present invention, in which the shielding boxes are partially removed and the shutters are in the evacuation state;
fig. 4 is a schematic diagram of an internal structure of an automatic visual stimulus presentation device according to an embodiment of the present invention, in which a part of the shielding boxes are removed and the blocking plates are in a blocking state;
FIG. 5 is a schematic view of the assembly relationship between the visual stimulus and the carrier according to one embodiment of the present invention;
Fig. 6 is a schematic structural diagram of an automatic visual stimulus presentation device according to a second embodiment of the present invention.
Reference numerals: 1. a table; 2. a visual stimulus automatic presentation device; 21. a shielding box; 211. a viewing port; 22. a carrier; 221. a through hole; 222. positioning pins; 23. a drive device; 231. a first power source; 232. a second power source; 233. a push rod; 2331. a butting block; 24. a return-to-zero sensor; 25. a baffle plate; 26. a third power source; 3. a positioning device; 4. an operation end; 41. an operation section; 5. an environment simulation device; 6. a control processing center; 7. a visual stimulus; 71. a base; 711. positioning holes; 72. and (5) an embedded block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The first embodiment is as follows: a vision experiment system, as shown in connection with fig. 1-3, comprising: the automatic visual stimulus presentation device 2, the table 1, the operation end 4, the positioning device 3, the environment simulation device 5 and the control processing center 6.
The automatic visual stimulus presentation device 2 is used for automatically presenting a visual stimulus 7 (shown in fig. 3), and the visual stimulus 7 is provided with a visual information presentation part; table 1 places in one side of the automatic presentation device of visual stimulus 2, the observer who participates in this experiment can pass through positioner 3 with its head and fix temporarily, it is relatively stable to be favorable to the observation position of observer in the experimentation, be favorable to guaranteeing the accuracy nature of experiment, positioner 3 and operation end 4 all can be dismantled and assemble on table 1 and with the automatic presentation device of visual stimulus 2 interval arrangement, thereby can be through the position of removing table 1, and then adjust the distance between observer and the visual stimulus 7, this distance specifically is four meters in this embodiment, this distance can be adjusted according to particular case in his embodiment, of course this visual experiment system also can directly remove table 1 and positioner 3.
The operation end 4 is used for the observer to operate in order to obtain observer identification result information, is equipped with scram switch and on-off switch on the operation end 4, still is equipped with a plurality of operating parts 41 that are used for typeeing observer identification result information on the operation end 4, and operating parts 41 specifically are button and quantity is eight in this embodiment, and the quantity and the form of operating parts 41 can be adjusted according to particular case at will in other embodiments.
The control processing center 6 controls the automatic visual stimulus presentation device 2 and the operation terminal 4 to work, and the control processing center 6 receives the identification result information of the observer, records and arranges the identification result information into related experimental data. The purpose of automatically presenting the three-dimensional visual stimulus 7 can be realized through the automatic visual stimulus presenting device 2, the authenticity and the reliability of the obtained experimental data are higher, the experimental efficiency is higher, the noise of the structure is small, the influence on an observer is small, and the authenticity and the reliability of the obtained experimental data are further improved; the system has the advantages of more reasonable layout, better experimental effect, more stable and convenient structure, wide application range, high accuracy and high reliability, and is convenient to carry out experimental data collection.
The control processing center 6 also has a basic operation control function for controlling the automatic visual stimulus presentation device 2, a single-group experiment operation frequency setting function, an observer response data automatic recording function (selecting response correct error and response time), and the like.
The environment simulation device 5 is provided around the visual stimulus 7 to simulate various experimental environments. Environment simulation device 5 specifically is the light source in this embodiment, and the light source that increases can realize simulating various illumination environment, for example the light at night, sunshine, sodium light etc. can also control the required condition of corresponding experimental environment simultaneously, for example: illuminance, spectrum, color temperature, color rendering index, color coordinates, metamerism, and the like; in other embodiments, the environment simulation apparatus 5 may also be a sound source, for example, a sound box is used to play songs and melodies with different rhythms, and the added sound source may simulate various different sound environments, so as to obtain the identification result information of the observer on different visual information presentation parts in various different simulation environments, thereby completing various complex experiments with better reference significance. Of course, the environment simulation device 5 can be removed from the vision experiment system, and corresponding vision experiments can be completed under outdoor sunshine environments or other natural environments, which is not described in detail in this embodiment.
As shown in fig. 3 and 4, the automatic visual stimulus presentation device 2 includes: a shielding box 21, a carrier 22, a driving device 23, and a control circuit board, the control circuit board is connected to the driving device 23 and controls the driving device 23 to operate, the carrier 22 is a circular tray in this embodiment.
The shielding box 21 is rectangular and is formed by welding metal plates or assembling the metal plates by screws; the carrier 22 is arranged in the shielding box 21 and movably assembled with the shielding box 21, eight groups of visual stimuli 7 are placed on the carrier 22, and the number of the visual stimuli 7 in other embodiments can be adaptively increased or decreased according to specific experimental conditions.
In this embodiment, the visual stimuli 7 are specifically three-dimensional physical models of human faces, each group of visual stimuli 7 has four different visual information expression parts, the number of the visual information expression parts in other embodiments may be one, two, three, five, six or more, the four visual information expression parts respectively represent four faces of "happiness", "anger", "sadness" and "music", the visual information expression parts exposed on two adjacent visual stimuli 7 for the observer to recognize may be the same or different, and the visual stimuli 7 in other embodiments may also be standard samples of ground obstacles or facing materials and the like.
The driving device 23 is assembled with the carrier 22 and drives the carrier 22 to drive the visual stimulation object 7 to move, the shielding box 21 is provided with an observation port 211, and when the specified visual stimulation object 7 moves to the specified position, the specified visual stimulation object 7 is exposed so that an observer can see the specified visual information expression part on the specified visual stimulation object 7 to recognize the visual information of the specified visual information expression part.
When a vision experiment is needed, the vision stimulant 7 is placed on the bearing body 22 in advance, the control circuit board controls the driving device 23 to work, and then the bearing body 22 is driven to move, so that the vision information expression part is randomly presented or not randomly presented for an observer to identify. The device presents the mode of visual information performance portion, presents three-dimensional entity and common display screen with common manual work and presents two-dimensional picture and compare, has the advantage that automatic three-dimensional visual stimulus 7 that presents, and not only gained experimental data authenticity and reliability are higher, and experimental efficiency is higher moreover, and the small in noise of this kind of structure moreover is less to observer's influence, has further improved gained experimental data authenticity and reliability.
The carrier 22 is rotatably disposed in the shielding box 21, the driving device 23 drives the carrier 22 to rotate in the shielding box 21, the viewing port 211 is disposed at the top of the shielding box 21, and the carrier 22 has a through hole 221 corresponding to the position of the visual stimulus 7.
The drive device 23 includes: a first power source 231 connected to the control circuit board for driving the carrier 22 to rotate; a second power source 232 connected to the control circuit board; and a push rod 233 provided corresponding to the viewing port 211, protruding from the through hole 221 corresponding to the viewing port 211 by the driving of the second power source 232, and pushing out the designated visual stimulus 7 from the viewing port 211 for the viewer to recognize. The first power source 231 is specifically a servo motor, the second power source 232 is specifically an air cylinder, and in other embodiments, the second power source 232 may also be an oil cylinder, or a gear rack structure driven by a motor, or a lead screw slider structure driven by a motor, or a pulley transmission structure, a sprocket transmission structure, a gear transmission structure driven by a motor, or the like.
In order to facilitate the observer to recognize the visual information expression part on the visual stimulus 7, the push rod 233 and the second power source 232 are added, when the carrier 22 drives the corresponding visual stimulus 7 to move to the position corresponding to the observation port 211, the control circuit board controls the second power source 232 to work, and the push rod 233 extends out of the through hole 221 to push the visual stimulus 7 out of the observation port 211, so that the visual stimulus 7 is completely exposed out of the shielding box 21, and therefore the side wall of the shielding box 21 cannot shield the visual stimulus 7, and particularly under the condition that the three-dimensional visual stimulus 7 is easily affected by light and visual angles, the real required experimental environment is further facilitated to be restored, and the authenticity and reliability of the obtained experimental data are further improved.
The visual stimulator 7 is assembled with a base 71 attached to the surface of the supporting body 22 by screws, the base 71 is assembled with an insert 72 sunk into the through hole 221 by screws, an abutting block 2331 magnetically attracted to the insert 72 is disposed at an end of the push rod 233 opposite to the second power source 232, the abutting block 2331 is specifically a strip-shaped iron block embedded with a magnet, and the insert 72 is specifically a strip-shaped metal block magnetically attracted to the magnet.
The bottom surface of the base 71 is attached to the surface of the carrier 22, which is beneficial to the stable placement of the visual stimulus 7 on the carrier 22; meanwhile, the insert 72 is sunk into the through hole 221, and the through hole 221 has a blocking effect on the insert 72, so that the visual stimulus 7 is not easy to shake in the process of being driven by the bearing body 22 to rotate, and the visual stimulus 7 is further favorably and stably placed on the bearing body 22; the mutual magnetic attraction between the contact block 2331 and the insert 72 makes the visual stimulus 7 not easily fall off from the contact block 2331 in the process that the push rod 233 pushes the visual stimulus 7 out of the observation port 211 from the carrier 22, thereby effectively increasing the stability.
The automatic visual stimulus presentation device 2 further includes: the return-to-zero sensor 24 is electrically connected to the control circuit board and used for detecting the movement of the carrier 22 to the initial position, the return-to-zero sensor 24 is specifically a correlation type photoelectric switch in this embodiment, after the carrier 22 moves for one period, the return-to-zero sensor 24 can be used for detecting whether the carrier 22 moves to the initial position, which indicates that a group of experiments is completed, is favorable for counting a plurality of groups of experimental data, and meanwhile, the return-to-zero sensor 24 is matched with the control circuit board and has the function of resetting and calibration.
The automatic visual stimulus presentation device 2 further includes: a barrier 25 which is partitioned between the visual stimulus 7 and the observer during presentation of the visual information presentation part and which is evacuated when the observer recognizes the specified visual information presentation part; and a third power source 26 controlled by the control circuit board, assembled with the baffle 25 and driving the baffle 25 to perform the blocking and withdrawing actions.
In the process of presenting the visual information expression part, the baffle 25 is separated and blocked between the visual stimulus 7 and the observer, so that the influence of the external environment on the observer is reduced; after the visual information expression part is presented, the baffle 25 is driven by the third power source 26 to withdraw from the original blocking position, so that the observer can observe the visual stimulus 7, the observer can conveniently identify the visual information expression part, and the reliability of the experiment is improved.
When the viewing port 211 is disposed at the top of the shielding box 21, the third power source 26 is a servo motor mounted on the shielding box 21, the servo motor drives the baffle 25 to rotate to realize the blocking and evacuating actions, the structure for driving the baffle 25 to rotate by the servo motor is not only stable, but also easy to realize and control, and meanwhile, the blocking and evacuating actions of the baffle 25 can be realized.
As shown in fig. 3 and 5, two positioning holes 711 are formed in the base 71, the positioning pin 222 matched with the positioning holes 711 is arranged on the supporting body 22, a chamfer facilitating alignment of the positioning pin 222 is formed in the lower edge of the positioning holes 711, the positioning pin 222 is in a circular truncated cone shape, the visual stimulus 7 needs to be repeatedly pushed out and put down through the push rod 233 in the process of presenting the visual information expression part, and the visual stimulus 7 is effectively ensured to be still at the original position before being pushed out after being put down through the positioning action of the positioning pin 222 and the positioning holes 711, which is beneficial to uninterrupted visual experiments; meanwhile, the lower edge of the positioning hole 711 is provided with a chamfer, so that the positioning pin 222 is aligned with the positioning hole 711, and the positioning pin 222 automatically slides into the positioning hole 711 under the action of the gravity of the visual stimulus 7.
Based on the above visual experiment system, an embodiment of the present invention further provides a visual experiment method, including: the control processing center 6 controls the automatic visual stimulus presentation device 2 to work and presents a visual information presentation part for an observer to identify; the operation portion 41 of the operation terminal 4 is operated by the observer to enter observer recognition result information; the control processing center 6 receives the identification result information of the observer, records and arranges the identification result information into relevant experimental data.
The visual experiment method can achieve the purpose of automatically presenting the three-dimensional visual stimulus 7, the reality and the reliability of the obtained experimental data are higher, the experimental efficiency is higher, the noise of the method is small, the influence on an observer is small, and the reality and the reliability of the obtained experimental data are further improved; the method can be suitable for simulating various different experimental environments, is convenient to collect experimental data, and is wide in application range, high in accuracy and high in reliability.
The experimental process and principle are as follows: eight groups of visual stimuli 7 are uniformly placed on the bearing body 21 in a circular shape, the embedded blocks 72 of the visual stimuli 7 are sunk into the corresponding through holes 221, the processing center 6 is controlled to control the third power source 26 to work so as to enable the baffle plates 25 to perform the blocking action, meanwhile, the processing center 6 is controlled to control the first power source 231 to rotate by a specified angle, then the bearing body 21 drives the corresponding visual stimuli 7 to rotate to the lower part of the observation port 211, the processing center 6 is controlled to control the second power source 232 to work again, the specified visual stimuli 7 are pushed out from the observation port 211 through the push rod 233, the processing center 6 is controlled to control the third power source 26 to work so as to enable the baffle plates 25 to perform the evacuation action, then an observer can directly see the visual information expression parts on the visual stimuli 7 to perform the identification judgment, and then manually press the operation parts 41 corresponding to the judgment results, therefore, the identification result information of the observer is input, another group of identification result information can be obtained by repeating the process, and the control processing center 6 obtains relevant experimental data according to the received multiple groups of identification result information.
Meanwhile, the operation of the system can be controlled by control software pre-loaded in a control processing center, the visual stimuli 7 can be presented in a random sequence, the equal presentation times of the visual stimuli 7 and different visual information presentation parts are effectively ensured, compared with a manual presentation mode, the presentation result is not influenced by personal factors, and therefore the fairness and the fairness of the visual experiment are effectively ensured.
Example two: a vision experiment system, as shown in fig. 1, 3 and 6, differs from the first embodiment in that the driving device 23 is composed of only the first power source 231 (the second power source 232 and the push rod 233 in fig. 3 are not included).
In other embodiments, the carrier 22 may also be slidably assembled in the shielding box 21, the visual stimuli 7 may be arranged on the carrier 22 in a sliding direction, and the driving device 23 may be adaptively changed into a screw slider structure driven by a motor or a gear rack structure driven by a motor, which can also achieve the purpose of automatically presenting the visual stimuli 7.
When the observation port 211 is arranged on the side wall of the shielding box 21, the baffle 25 is slidably assembled on the shielding box 21, the third power source 26 is specifically an air cylinder assembled on the shielding box 21, the air cylinder drives the baffle 25 to slide so as to realize the blocking and evacuating actions, the sliding structure of the baffle 25 driven by the air cylinder is not only stable, but also easy to realize and control, and simultaneously the blocking and evacuating actions of the baffle 25 can be realized. Of course, the third power source 26 in this embodiment may also be a motor, and drives the baffle 25 to block the viewing port 211 in a 90-degree rotation manner.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (9)
1. An automatic visual stimulus presentation device, comprising: a shielding box (21); the supporting body (22) is arranged in the shielding box (21), movably assembled with the shielding box (21) and used for placing a plurality of visual stimuli (7), and the visual stimuli (7) are provided with a plurality of visual information expressing parts; the driving device (23) is assembled with the bearing body (22) and drives the bearing body (22) to drive the appointed visual stimulus (7) to move, and the shielding box (21) is provided with an observation port (211) which exposes the appointed visual stimulus (7) when the appointed visual stimulus (7) moves to an appointed position so that an observer sees the appointed visual information expression part on the appointed visual stimulus (7) to recognize the visual information of the appointed visual information expression part; the control circuit board is connected with the driving device (23) and controls the driving device (23) to work;
The bearing body (22) is rotatably matched in the shielding box (21), the driving device (23) drives the bearing body (22) to rotate in the shielding box (21), the observation port (211) is arranged at the top of the shielding box (21), and the bearing body (22) is provided with a through hole (221) corresponding to the position of the visual stimulus (7);
the drive device (23) comprises: a first power source (231) connected with the control circuit board and driving the carrier (22) to rotate; a second power source (232) connected to the control circuit board; and a push rod (233) which is arranged corresponding to the observation port (211), extends out of the through hole (221) corresponding to the observation port (211) under the driving of the second power source (232) and pushes the appointed visual stimulus (7) out of the observation port (211) for the identification of an observer.
2. The automatic visual stimulus device of claim 1, wherein said visual stimulus device (7) is provided with a base (71) attached to the surface of said supporting body (22), said base (71) is provided with an insert (72) sinking into said through hole (221), and the end of said push rod (233) opposite to said second power source (232) is provided with an abutment block (2331) magnetically attracted to said insert (72).
3. The automatic visual stimulus presentation device of claim 2, wherein said base (71) is provided with a plurality of positioning holes (711), said supporting body (22) is provided with positioning pins (222) fitted with said positioning holes (711), and the lower edges of said positioning holes (711) are provided with chamfers for facilitating alignment of said positioning pins (222).
4. The automatic visual stimulus presentation device of claim 1,
the observation port (211) is arranged on the side wall of the shielding box (21), the observer directly identifies the visual stimulus (7) in the shielding box (21) through the observation port (211), or,
the automatic visual stimulus presentation device further comprises: a return-to-zero sensor (24) connected to the control circuit board for detecting movement of the carrier (22) to an initial position.
5. The automatic visual stimulus presentation device of claim 1, further comprising:
baffles (25) interposed between the visual stimulus (7) and the observer during presentation of the visual information presentation and evacuated when the observer recognizes the designated visual information presentation;
And a third power source (26) which is controlled by the control circuit board, is assembled with the baffle (25) and drives the baffle (25) to realize blocking and evacuation actions.
6. The automatic visual stimulus presentation device of claim 5,
when the observation port (211) is arranged at the top of the shielding box (21), the third power source (26) is a servo motor which is assembled on the shielding box (21), the servo motor drives the baffle (25) to rotate so as to realize the blocking and withdrawing actions, or,
when the observation port (211) is arranged on the side wall of the shielding box (21), the baffle (25) is assembled on the shielding box (21) in a sliding manner, the third power source (26) is specifically an air cylinder assembled on the shielding box (21), and the air cylinder drives the baffle (25) to slide so as to realize blocking and withdrawing actions.
7. A visual experiment system, comprising:
the visual stimulus automatic presentation device (2) of any one of claims 1 to 6;
the operation end (4) is used for the observer to operate so as to obtain the identification result information of the observer, and the operation end (4) is provided with a plurality of operation parts (41) for inputting the identification result information of the observer;
And the control processing center (6) controls the automatic visual stimulus presentation device (2) and the operation end (4) to work, receives the identification result information of the observer, records and arranges the identification result information into related experimental data.
8. The vision experiment system of claim 7, further comprising: and the environment simulation device (5) is arranged around the visual stimulus (7) to simulate various experimental environments, and the environment simulation device (5) is a light source and/or a sound source.
9. A visual experiment method based on the visual experiment system of claim 7, the visual experiment method comprising:
the control processing center (6) controls the automatic visual stimulus presentation device (2) to work and presents the visual information presentation part for an observer to recognize;
the operating section (41) of the operating terminal (4) is operated by the observer to enter the observer recognition result information;
and the control processing center (6) receives the observer identification result information, records and arranges the observer identification result information into related experimental data.
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