CN1299644C - Digital display depth perception tester - Google Patents
Digital display depth perception tester Download PDFInfo
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- CN1299644C CN1299644C CNB2004100192205A CN200410019220A CN1299644C CN 1299644 C CN1299644 C CN 1299644C CN B2004100192205 A CNB2004100192205 A CN B2004100192205A CN 200410019220 A CN200410019220 A CN 200410019220A CN 1299644 C CN1299644 C CN 1299644C
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Abstract
The present invention discloses a digital display depth consciousness tester. The present invention solves the problems of low traditional measurement precision, complicated structure, strict produce requirements, etc. The present invention has the technical schemes: test results are directly displayed by a digital display; the present invention comprises a main control circuit, a digital display circuit, a stepping motor driving circuit, a limiting control circuit, a limiting device, a vernier position controller, a stepping motor, a transmission member and a vernier device, wherein the input end of the main control circuit is respectively connected with the output ends of the vernier position controller and the limiting control circuit; the output end of the main control circuit is respectively connected with the input ends of the digital display circuit and the stepping motor driving circuit; the output end of the stepping motor driving circuit is connected with the input terminal of the stepping motor; a drive shaft of the stepping motor is connected with the vernier device by the transmission member; the vernier device is connected with the input end of the limiting control circuit by the limiting device. The present invention can carry out quick, direct, convenient and accurate measurement, the measurement is not influenced by the subjectivity of human, and the present invention is conveniently manipulated, and is humanized. The present invention is a psychology depth consciousness testing article which replaces the older generation by new ones.
Description
Technical field
The present invention relates to a kind of gauge, particularly a kind of sensory perception test instrunment in psychology field extensive application.
Background technology
Depth perception tester is a kind of gauge in psychology field extensive application, also can be used for pilot, driver's etc. choice test job.Depth perception tester is mainly used in the minimum of the depth perception of measuring the people and distinguishes threshold, i.e. degree of depth Snazzi.
The test philosophy of depth perception tester is: when people's eyes are observed two equidistant objects, only two articles apart from difference during greater than a certain threshold value, eyes just can be felt this difference, this threshold value is degree of depth Snazzi.Depth perception tester is directly measured the numerical value of this threshold value, is the depth perception error.
Depth perception tester mainly is made up of measurement and numerical value demonstration two parts.
The traditional measurement mode: early start is determined the depth perception error in the three needle experiment of H.V. helmholtz design by the vertical dimension of measuring active pointer and two locking pins.1919, J. Ha Wade according to the principle design of three needle experiment a depth perception tester, this instrument has 2 vertical columns (being equivalent to calibration) and 1 active column (being equivalent to vernier), testedly regulate the position of active column (vernier), when the tested vertical dimension of thinking active column and vertical columns is zero, stop manual by pulling rope (manual mode).Because people's sight equation, the vertical dimension of actual activity column and vertical columns may be non-vanishing, and this vertical distance is the error of depth perception.Active column of measuring with rule and the distance between the vertical columns (vernier and calibration) are the error amount of depth perception.At present, the domestic depth perception tester that generally uses, though more complicated in textural design than Ha Wade,, on agent structure, but never have big difference.
Traditional display modes: be that main examination obtains experimental result by reading rule numerical value.Method is original, measure inconvenience, and precision is relatively poor.Be subject to the subjective influence of main examination.
Traditional depth perception tester up to the present existing two generation product, the first generation is a manual mode, promptly go between the moving cursor position with the hands tractive, and second the position change, but be that the first generation or the second filial generation all can't be broken away from the vertical dimension between measuring, read vernier and calibrate with rule on behalf of electronic control vernier.Existing measurement display mode, not only method is outmoded, measure inconvenience, and certainty of measurement is relatively poor.Simultaneously, be subject to the subjective influence of main examination.Though at present also useful numeral shows that length measurement technique substitutes traditional linear measure longimetry display mode,, none example is used in the depth perception field tests.And numeral shows that length measurement technique all needs to change displacement information into the signal of telecommunication with displacement transducer usually at present.Most of grating, magnetic grid or the inductosyn of adopting of domestic traditional digital display device made displacement transducer, and cost is high and install difficult.At present, accurate digital display distance-measuring device both domestic and external tends to adopt capacitor grid transducer, and to reach than higher certainty of measurement, the advantage of this mode is the degree of accuracy height, and performance is more stable; It need install the electrode slice of a large amount of mutually insulateds on moving chi and scale, and complex structure working condition is required harshness, and cost is than higher.
Technical scheme
The present invention be directed to the research that the problems referred to above are carried out, in view of the deficiency of traditional measurement mode, the invention provides a kind of simple in structure, cost is lower, be not subjected to that main examination subjectivity influences, certainty of measurement can reach 10
-4M available digital mode in measurement dynamically directly shows measurement result, controls more convenient, more humane new digital display depth consciousness tester.
Technical scheme of the present invention is: digital display depth consciousness tester need not to measure with chi, is directly shown test results by nixie display; Described digital display type depth perception tester comprises governor circuit, digital display circuit, stepper motor driving circuit, spacing control circuit, stopping means, slider position controller, motor, drive disk assembly, vernier device; The governor circuit input links to each other with the outfan of slider position controller, spacing control circuit respectively, the outfan of governor circuit links to each other with the input of digital display circuit, stepper motor driving circuit respectively, the outfan of stepper motor driving circuit links to each other with the input terminal of motor, the driving shaft of motor links to each other with vernier device by drive disk assembly, and vernier device links to each other with the input of spacing control circuit by stopping means.
Stopping means of the present invention is mounted in the photoelectrical position sensor of vernier device track two-end-point.
Slider position controller of the present invention is made of remote controller and position signalling input circuit.
Remote controller of the present invention is to adopt the remote controller that line traffic control or controlled in wireless are arranged.
Beneficial effect of the present invention: brand-new design philosophy is adopted in invention, advance or fall back by the Single-chip Controlling motor, each single step of motor is by Single-chip Controlling, the single step space angle that controlled motor turns over is 7.5 °, drive drive disk assembly (gear drive and belt transmission) and rotates thereupon, make single step that vernier moves apart from for O.1mm.Simply and dexterously realized the digitized of distance signal, avoided any type of displacement transducer fully, made that cost simple in structure is lower.(can make vernier be automatically moved to initial position) can automatically reset after the start; During experiment, range information can be presented to main examination in real time by character display, make and measure not only fast but also direct, not only convenient but also accurate, not influenced by main examination subjectivity.Because the input controller adopts the remote controller that line traffic control or controlled in wireless are arranged, make operation control convenient, humanized, be the renewal product of psychology test depth perception.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail:
Fig. 1 is the primary structure block diagram of digital display depth consciousness tester of the present invention
Fig. 2 is the circuit diagram of digital display depth consciousness tester of the present invention
The specific embodiment
As shown in Figure 1.The present invention need not to measure with chi, is directly shown test results by nixie display.It comprises governor circuit, digital display circuit, stepper motor driving circuit, spacing control circuit, stopping means, slider position controller, motor, drive disk assembly, vernier device; The governor circuit input links to each other with the outfan of slider position controller, spacing control circuit respectively, the outfan of governor circuit links to each other with the input of digital display circuit, stepper motor driving circuit respectively, the outfan of stepper motor driving circuit links to each other with the input terminal of motor, the driving shaft of motor links to each other with vernier device by drive disk assembly, and vernier device links to each other with the input of spacing control circuit by stopping means.
As shown in Figure 2, governor circuit adopts 8 single chip microcontroller AT89C51 of 89 series of atmel corp's low power consumption and low cost, its instruction system and MCS-51 series are compatible fully, carry the 4K byte at system programmable FLASH memorizer, 128 * 8 RAM, 32 programmable I/O mouths, 2 16 bit timing device/enumerators.This chip obtains work clock by external 6MHz crystal oscillator.
Digital display circuit is used for presenting measuring distance to main examination.The employing governor circuit directly drives five common anode seven-segment numeric indicators and with dynamic scan mode work, its scope that dynamically shows is-150.0mm-150.0mm.During experiment, nixie display moves forward and backward real-time display digit along with vernier on guide rail, promptly show vernier and quiet target vertical dimension.
Stepper motor driving circuit adopts governor circuit to drive FT-5754 power pio chip, is used for the rotation of direct drive stepping motor, and motor advances by the drive disk assembly driving vernier or falls back.Be further to reduce the power consumption of drive circuit, stepper motor driving circuit adopts the dual power supply mode, the rotation that is respectively motor with lock two states different voltage be provided.External+18V and+the 5V dc source, provide the complete machine power supply by the J3 terminal for this instrument.When motor rotated, the P2.0 of governor circuit kept high level, Q7, Q1 conducting, and motor obtains+18V voltage, and P2.7-P2.4 sends the high level drive stepping motor in turn.Motor when locking, the P2.0 output low level, Q7, Q1 end, and VCC powers to motor by D10, the latch voltage of motor obtains approaching+5V, vernier enters immobilized lock-out state (referring to Fig. 2).
It comprises 6 quiet marks, 1 vernier, 1 vernier track vernier device.Two row, front and back three rows (every row has two quiet marks) about 6 quiet marks are divided into, every row 2 quiet marks arranged side by side indicate amphi position, zero-bit (interposition) and peri position respectively.The vernier railway clamp is in the middle of the quiet target of two row.
Stopping means is at the track two-end-point place of vernier device photoelectrical position sensor to be installed.
Motor is a kind of motor with accurate step pitch, is used for the moving of driving vernier accurately in the design.In design process, we consider dependency and the accurate single step distance of motor that single-chip microcomputer and motor rotate, adopt a kind of brand-new design philosophy, avoided any type of displacement transducer fully, simply and dexterously realized the digitized of distance signal.Each single step of motor is by Single-chip Controlling, and the space angle that controlled motor turns over is 7.5 °, drives drive disk assembly (gear drive and belt transmission) and rotates thereupon, and the single step distance that vernier is moved is 0.1mm.When vernier was got back to initial bit, the demonstration initial value of single-chip microcomputer character display was set to-150.0mm.
Drive disk assembly (adopting gear drive and belt transmission) links with the driving shaft of motor.The driving shaft of motor drives vernier by drive disk assembly (gear drive and belt transmission) moves forward and backward it in orbit.Drive disk assembly is made up of gear and backguy, can draw vernier under the driving of motor and move forward and backward, and simultaneously the single step of motor be converted to the displacement of 0.1mm.
Spacing control circuit is made of 2 schmidt shaping circuits (U2A, U2B, J2 etc.).The J2 terminal is the splicing ear of photoelectrical position sensor and spacing control circuit.When vernier moved to the end points of track, the photoelectrical position sensor that is positioned at the rail end point place sent limit signal, and inputed to U2A, the U2B schmidt shaping circuit, signal through shaping passes to governor circuit and sends instruction, makes motor stop, and shifts out track to prevent vernier.
The slider position controller is made of remote controller and position signalling input circuit (U2C, U2D, J1 etc.).The J1 terminal is the interface of remote controller and position signalling input circuit.Remote controller adopts two kinds of control modes, existing line control or controlled in wireless.Remote controller constitutes by transmitting and receiving two parts, and when receiving unit connected the line traffic control signal, remote controller was for there being line traffic control, and when receiving unit received wireless signal, remote controller was a wireless remote control.This remote controller can produce the signal that moves forward and backward under tested control, require remote control distance to be not less than 6 meters.In addition, require Digiplex to adopt the control mode of different passages, the phase mutual interference (it is a plurality of tested to make this instrument to test simultaneously) when preventing that two above equipment of machine from working simultaneously.
Behind the instrument electrification reset, the Gao Siwei of single-chip microcomputer P2 mouth output progress signal drive stepping motor makes vernier get back to initial bit; Low 5 dynamic scans output, seven sections shows signal (referring to Fig. 2) of P0 mouth and P1 mouth present the quiet mark vertical dimension of vernier and zero-bit (150.0mm).
Have observation window on the panel of instrument, the tested observation window direction along ng a path that sees through can be seen a vernier and three row's quiet marks (every row has two quiet marks), the quiet mark of every row indicate respectively amphi position (150.0m), zero-bit and peri position (+150.0m).
During test, regulated vernier by the trial maneuver remote controller and move forward and backward in orbit.When vernier is adjusted to rail end point, stopping means work, the photoelectrical position sensor that promptly is installed in rail end point sends optically-controlled signal, isolates shaping through photoelectrical position sensor 521-2 and Schmidt trigger 74HC14, sends into the P3.4 and the P3.5 port of governor circuit respectively.And send spacing instruction by governor circuit, motor is stopped operating.Nixie display is to show real-time numeral along with vernier moves forward and backward in orbit, promptly shows vernier and quiet target vertical dimension.Whenever the motor single step is advanced or 1 the single step distance that falls back, single-chip microcomputer all correspondingly adds 0.1mm or subtracts 0.1mm on original demonstration radix, thereby makes range of a signal accurately corresponding with moving of vernier, has guaranteed the precision of demonstration.Through actual measurement, the single step precision of vernier can reach 0.1mm.
Think the two quiet when being marked on the straight line of vernier and middle row (zero-bit) when tested, stop to regulate vernier.At this moment, the display display digit is the depth perception error amount.
After experiment finished, main examination can be pressed the strong S1 (see figure 2) that resets, and makes vernier get back to initial position, prepared experiment next time.
Claims (4)
1, a kind of digital display type depth perception tester is characterized in that described digital display type depth perception tester need not to measure with chi, is directly shown test results by nixie display; Described digital display type depth perception tester comprises governor circuit, digital display circuit, stepper motor driving circuit, spacing control circuit, stopping means, slider position controller, motor, drive disk assembly, vernier device; The governor circuit input links to each other with the outfan of slider position controller, spacing control circuit respectively, the outfan of governor circuit links to each other with the input of digital display circuit, stepper motor driving circuit respectively, the outfan of stepper motor driving circuit links to each other with the input terminal of motor, the driving shaft of motor links to each other with vernier device by drive disk assembly, and vernier device links to each other with the input of spacing control circuit by stopping means.
2, digital display depth consciousness tester according to claim 1 is characterized in that stopping means is mounted in the photoelectrical position sensor of vernier device rail end point.
3, digital display depth consciousness tester according to claim 1 and 2 is characterized in that the slider position controller is made of remote controller and position signalling input circuit.
4, digital display depth consciousness tester according to claim 3 is characterized in that the remote controller that remote controller adopts line traffic control or controlled in wireless.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100192205A CN1299644C (en) | 2004-05-11 | 2004-05-11 | Digital display depth perception tester |
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| CNB2004100192205A CN1299644C (en) | 2004-05-11 | 2004-05-11 | Digital display depth perception tester |
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| CN1568894A CN1568894A (en) | 2005-01-26 |
| CN1299644C true CN1299644C (en) | 2007-02-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280049A (en) * | 2015-10-28 | 2016-01-27 | 北京交通大学 | Device and method for training driving adaptability of rail transit train drivers |
| CN105243917B (en) * | 2015-10-28 | 2019-10-29 | 北京交通大学 | To the device and method of rail transit train driver's driving adaptability reinspection |
| CN105280050A (en) * | 2015-10-28 | 2016-01-27 | 北京交通大学 | Device and method for testing driving adaptability of rail transit train driver |
| CN108903907B (en) * | 2018-05-18 | 2020-11-20 | 科飞云视（天津）高新科技有限公司 | Horizontal deviation-based vernier sharpness perception capability detection method |
| CN110063716A (en) * | 2019-04-29 | 2019-07-30 | 浙江工业大学 | A kind of depth perception experimental apparatus for testing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4318221A1 (en) * | 1993-06-01 | 1994-12-08 | Matthias Bonacker | Device for measuring the position of convergence of the eyes when looking at a visual display unit |
| CN2721008Y (en) * | 2004-05-11 | 2005-08-31 | 天津师范大学 | Deep consciousness tester with digital display |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4318221A1 (en) * | 1993-06-01 | 1994-12-08 | Matthias Bonacker | Device for measuring the position of convergence of the eyes when looking at a visual display unit |
| CN2721008Y (en) * | 2004-05-11 | 2005-08-31 | 天津师范大学 | Deep consciousness tester with digital display |
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Granted publication date: 20070214 Termination date: 20100511 |