CN206391526U - A kind of intelligent long-jump measuring system of physical education - Google Patents
A kind of intelligent long-jump measuring system of physical education Download PDFInfo
- Publication number
- CN206391526U CN206391526U CN201720081781.0U CN201720081781U CN206391526U CN 206391526 U CN206391526 U CN 206391526U CN 201720081781 U CN201720081781 U CN 201720081781U CN 206391526 U CN206391526 U CN 206391526U
- Authority
- CN
- China
- Prior art keywords
- module
- input
- signal processing
- measuring system
- output end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model relates generally to a kind of measuring system, more particularly, to a kind of intelligent long-jump measuring system of physical education.The output end of physical education intelligence long-jump measuring system measurement detection module is connected to the input of signal acquisition module;Signal acquisition module, foul detection module, key-press input, module of swiping the card, pressure sensor, the output end of power module are connected to the input of signal processing module;The output end of signal processing module is connected to display module, alarm module, the input of voice cue module;Signal processing module is connected to memory modules.A kind of intelligent long-jump measuring system of physical education of the utility model, it is blocked according to infrared light, infrared receiving tube does not receive the principle of infrared light, judge the long-jump distance of tester, whether broken the rules by the infrared light discriminating test person that whether is blocked during take-off, fall, whether broken the rules according to the signal determining tester whether pressure sensor detects pressure signal detection backward when tester lands.
Description
Technical field
The utility model relates generally to a kind of measuring system, is measured more specifically to a kind of intelligent long-jump of physical education
System.
Background technology
Long-jump is a Common item of Modern Physical Education teaching and sports tournament, but in current physical education and match
In, the judgement either broken the rules, or measurement at a distance is jumped, still using artificial judgment and measurement.During execution by mistake
Difference is unavoidable, and automatic range finder, this long-jump automatic tester have been used in the now standing long jump only in the physical stamina test of part
The principle of blanket measurement is jumped using keyboard, landing has intense impact in test due to sportsman, and this can significantly reduce tester
Life-span, and hard landing detection circuit board does not possess cushioning effect, injury gained in sports is easily caused, so jumping the detection of blanket
Instrument can not really be applied to the distance detection that long-jump is competed.Detect that long-jump distance can avoid impulsive force to jumping blanket by light
The damage caused, makes measuring system have higher service life.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of physical education intelligent long-jump measuring system, and its structure is simple
It is single, it is blocked according to infrared light, infrared receiving tube does not receive the principle of infrared light, judges the long-jump distance of tester,
Whether broken the rules, fallen backward when tester lands, according to pressure by the infrared light discriminating test person that whether is blocked during take-off
Whether the signal determining tester whether sensor detects pressure signal detection breaks the rules.
In order to solve the above technical problems, a kind of intelligent long-jump measuring system of physical education of the utility model includes measurement detection mould
Block, signal acquisition module, foul detection module, key-press input, module of swiping the card, power module, signal processing module, internal memory mould
Block, display module, alarm module, voice cue module, pressure sensor, its is simple in construction, is blocked according to infrared light, red
Outer reception pipe does not receive the principle of infrared light, judges the long-jump distance of tester, during take-off by infrared light whether by
Blocking discriminating test, whether person breaks the rules, and is fallen backward when tester lands, whether pressure signal is detected according to pressure sensor
Whether the signal determining tester of detection breaks the rules.
Wherein, the output end of the measurement detection module is connected to the input of signal acquisition module;The signal acquisition
The output end of module is connected to the input of signal processing module;The output end of the foul detection module is connected to signal transacting
The input of module;The output end of the key-press input is connected to the input of signal processing module;The module of swiping the card it is defeated
Go out the input that end is connected to signal processing module;The output end of the signal processing module is connected to the input of display module
End;The output end of the signal processing module is connected to the input of alarm module;The output end of the signal processing module connects
Then the input of voice cue module;The output end of the pressure sensor is connected to the input of signal processing module;Institute
State signal processing module and be connected to memory modules;The output end of the power module is connected to the input of signal processing module.
As further optimization of the present utility model, believe described in a kind of intelligent long-jump measuring system of physical education of the utility model
Number processing module uses AT89C51 single-chip microcomputers.
As further optimization of the present utility model, surveyed described in a kind of intelligent long-jump measuring system of physical education of the utility model
Measure detection module and use RPM6938 infrared receiving tubes, L5IR850B-45 infrared transmitting tubes.
As further optimization of the present utility model, pressed described in a kind of intelligent long-jump measuring system of physical education of the utility model
Force snesor uses BP800 pressure sensor chips.
As further optimization of the present utility model, a kind of intelligent long-jump measuring system institute predicate of physical education of the utility model
Sound reminding module uses ISD1820 speech chips.
It is interior described in a kind of intelligent long-jump measuring system of physical education of the utility model as further optimization of the present utility model
Storing module uses FM25256 chips.
Control effect:A kind of intelligent long-jump measuring system of physical education of the utility model, its is simple in construction, according to infrared light
It is blocked, infrared receiving tube does not receive the principle of infrared light, judges the long-jump distance of tester, pass through infrared light during take-off
Whether whether the line discriminating test person that whether is blocked breaks the rules, fall, detected according to pressure sensor backward when tester lands
Whether the signal determining tester of pressure signal detection breaks the rules.
Brief description of the drawings
The utility model is described in more detail with specific implementation method below in conjunction with the accompanying drawings.
Fig. 1 is a kind of hardware structure diagram of the intelligent long-jump measuring system of physical education of the utility model.
Fig. 2 is a kind of circuit diagram of the signal processing module of the intelligent long-jump measuring system of physical education of the utility model.
Fig. 3 is a kind of infrared receiving tube of the measurement detection module of the intelligent long-jump measuring system of physical education of the utility model
Circuit diagram.
Fig. 4 is a kind of circuit diagram of the module of swiping the card of the intelligent long-jump measuring system of physical education of the utility model.
Fig. 5 is a kind of circuit diagram of the pressure sensor of the intelligent long-jump measuring system of physical education of the utility model.
Fig. 6 is a kind of circuit diagram of the power module of the intelligent long-jump measuring system of physical education of the utility model.
Fig. 7 is a kind of circuit diagram of the voice cue module of the intelligent long-jump measuring system of physical education of the utility model.
Fig. 8 is a kind of circuit diagram of the display module of the intelligent long-jump measuring system of physical education of the utility model.
Fig. 9 is a kind of circuit diagram of the alarm module of the intelligent long-jump measuring system of physical education of the utility model.
Figure 10 is a kind of infrared transmitting tube of the measurement detection module of the intelligent long-jump measuring system of physical education of the utility model
Circuit diagram.
Figure 11 is a kind of circuit diagram of the signal acquisition module of the intelligent long-jump measuring system of physical education of the utility model.
Figure 12 is a kind of photoelectric sensor of the foul detection module of the intelligent long-jump measuring system of physical education of the utility model
Circuit diagram.
Figure 13 is a kind of infrared transmitting tube of the foul detection module of the intelligent long-jump measuring system of physical education of the utility model
Circuit diagram.
Figure 14 is a kind of circuit diagram of the memory modules of the intelligent long-jump measuring system of physical education of the utility model.
Embodiment
Embodiment one:
Illustrate present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11,12,13,14, one described in present embodiment
The intelligent long-jump measuring system of kind of physical education include measurement detection module, signal acquisition module, foul detection module, key-press input,
Swipe the card module, power module, signal processing module, memory modules, display module, alarm module, voice cue module, pressure pass
Sensor, its is simple in construction, is blocked according to infrared light, and infrared receiving tube does not receive the principle of infrared light, judges test
Whether the long-jump distance of person, broken the rules during take-off by the infrared light discriminating test person that whether is blocked, when tester lands to
After fall, according to pressure sensor whether detect pressure signal detection signal determining tester whether break the rules.
Wherein, the output end of the measurement detection module is connected to the input of signal acquisition module, measures detection module
Using infrared transmitting tube and infrared receiving tube, infrared transmitting tube and infrared receiving tube are separately mounted to test the left and right sides of blanket,
Each 1 centimetre is installed infrared transmitting tube and infrared receiving tube in symmetrical position, in order to prevent mutually being concerned between infrared ray
Disturb, the left and right sides, which intersects, installs infrared transmitting tube and infrared receiving tube, i.e., install an infrared transmitting tube in left side, be separated by it
1 centimetre of position is installed by infrared receiving tube;Because a kind of intelligent long-jump measuring system of physical education is mainly used in PE testing,
Male and female studentses have acceptance line as standard, are carried out since the position of schoolgirl's acceptance line using infrared receiving tube and infrared transmitting tube
Measurement at a distance is jumped, measuring principle is in measurement zone one infrared light of each 1 centimetre of setting, when tester jumps from the outset
Line starts take-off, lands in measured zone, and tester blocks measurement light, and the infrared ray of infrared transmitting tube transmitting can not be infrared
Reception pipe is received, and the position for the light that the previous bar that distance starts the light being blocked of scratch line recently is not blocked is made
For the long jump result of tester, infrared transmission module launches infrared ray by the direct power supply control infrared transmitting tube of power module, red
Outer reception pipe receives infrared signal, and after tester's take-off is landed, the infrared signal at the position of pick-up point is blocked, infrared receiver
Pipe does not receive infrared signal;The TTXD ends of the infrared transmitting tube of infrared detection module, fingerprint identification module and the P1.2 pins of signal processing module are logical
Connection is crossed, infrared receiving tube is connected with signal acquisition module by RRXD ends.
The output end of the signal acquisition module is connected to the input of signal processing module, and signal acquisition module is by light
Signal is converted into level signal and exported, when standby, and infrared transmitting tube transmitting infrared light, infrared receiving tube receives optical signal,
Operational amplifier IC1A positive input connects high level, and operational amplifier amplified signal is simultaneously exported, and signal is connect by diode
The reverse input end of another operational amplifier, now operational amplifier IC02 reverse input ends connect high level, then this operation amplifier
Device exports low level, and the DATA1 ends of signal acquisition module are connected with the P1.3 pins of signal processing module.
The output end of the foul detection module is connected to the input of signal processing module, and foul detection module is used to examine
Survey tester in take-off whether foul, infrared transmitting tube and photoelectric sensor are set in scratch line both sides, work as tester
Foul, infrared signal is blocked, and photoelectric sensor does not receive infrared signal, low level is exported, when infrared signal does not have
It is blocked, photoelectric sensor receives infrared signal output high level, and the SIN ends of infrared transmitting tube are connected to signal processing module
P0.2 pins, the SOUT ends of photoelectric sensor are connected to the P0.3 pins of signal processing module.
The output end of the key-press input is connected to the input of signal processing module, and key-press input uses single key,
Key-press module S1 measures work by manual depression of button, control measuring system.
The output end of the module of swiping the card is connected to the input of signal processing module, module of swiping the card by brush identity card or
Identity information in the mode reading identity card or IC-card of person's IC-card, signal processing module is controlled using interruption read-write chip
Mode, interrupts control mouth INT1 (P3.3) and is connected with MFRC500 IRQ pin.Have inside MFRC500 at 64 registers, signal
Reason module to it by being configured and being operated toward write-in control command in register, and wherein detection of power loss pin RSTPD connects
Single-chip microcomputer P0.6 pin are connect, NCS pin connection P0.7 pin, the low pass filter that L1, L2, C3, C4 are constituted is same for suppressing crystal oscillating circuit
When the higher hamonic wave that produces.Receiving circuit is made up of R1, R2, C5, C6, using the VNID potential conducts produced inside MFRC500
The input potential of RX pin, in order to reduce interference, VIND pin connect an electric capacity C5 to ground, and one must be connected between RX and VNID
Individual divider (R1), an electric capacity (C6) of being contacted preferably also between aerial coil and counter pressor;The P3.3 of signal processing module,
P0.6, P0.7 pin are connected with IRQ, RSTPD, NCS mouth for module of swiping the card respectively.
The output end of the signal processing module is connected to the input of display module, and display module can show tester
ID card No. and tester long jump result, display module uses LCD1602 LCDs, the D0 of display module, D1,
D2, D, D4, D5, D6, D7 end and P2.0, P2.1, P2.2, P2.3, P2.4, P2.5, P2.6, P2.7 pin of signal processing module
It is connected, for display data;The RS ends of display module are connected with the P3.0 pins of single-chip microcomputer, for control data order;
The R/W ends of display module are connected with the P3.1 pins of single-chip microcomputer, for controlling read-write operation;The Enable Pin E of display module with
The P3.2 pins of single-chip microcomputer are connected;P3.0, P3.1, P3.2 pin of signal processing module are used to control the number in display module
The strobe state of code pipe.
The output end of the signal processing module is connected to the input of alarm module, and alarm module is used to work as signal transacting
Module receives the pressure signal that pressure sensor is detected, signal processing module output high level signal control alarm module hair
Go out sound to be alarmed, alarm module constitutes simple sound light alarming circuit using alarm bell and light emitting diode, works as nature
Under, P1.0 pins output high level, Q1 cut-offs, alarm bell and light emitting diode are in off position, when detecting alarm signal,
P1.0 pins export low level, Q1 conductings, and alarm bell sends sound, and lumination of light emitting diode carries out sound and light alarm, alarm module
DB1 ends are connected with the P1.0 pins of signal processing module.
The output end of the signal processing module is connected to the input of voice cue module, when signal processing module is calculated
Go out after the long jump result of tester, voice cue module plays out the long jump result of tester by way of voice broadcast
Come, voice cue module uses ISD1820 speech chips, the PLAYE ends of voice cue module and the P0.0 of signal processing module
Pin is connected, and when PLAYE terminations receive rising edge, chip starts playback, and playback continues to that EOM flag bits or internal memory terminate,
Chip enters energy-saving mode;The PLAYL ends of voice cue module are connected with the P0.1 pins of signal processing module, PLAYL ends
When being changed into high level from low level, chip starts playback, and playback continues to that EOM flag bits, internal memory terminate or continueed to level, core
Piece enters energy-saving mode.
The output end of the pressure sensor is connected to the input of signal processing module, and pressure sensor, which is used to detect, to be surveyed
The stressing conditions in the unqualified region of blanket schoolgirl are tried, when tester carries out long-jump landing region not conforming in not up to schoolgirl's acceptance line
Lattice region, is not provided with detecting light in unqualified region, when the pressure sensor being arranged under test blanket detects pressure signal
When, it was demonstrated that the long jump result of tester is unqualified, and when tester's landing is in detection zone, but body of not standing firm retreats
Tiltedly, pin is in measured zone, but the unqualified region of other location contacts of body, and pressure sensor detects pressure signal, tests
The achievement of person is still to be unqualified;The P1.7 of pressure signal to signal processing module that the OUT outputs of pressure sensor are detected draws
Pin.
The signal processing module is connected to memory modules, and signal processing module is by the measurement achievement detected and tester
Identity information be sent to memory modules and stored, CS, MISO, MOSI, SCLK ends of memory modules respectively with P0.4,
P0.5, P1.1, P1.4 pin are connected.
The output end of the power module is connected to the input of signal processing module, due to infrared transmitting tube continuous illumination
It is the maximum consumption part of electric energy, it is contemplated that save electric energy, power module provides two power supplys, 15V direct current for system
Voltage-stabilized power supply, 15V direct current pulse power source, power module is powered by VCC pin.
Embodiment two:
Illustrate present embodiment, the signal processing module with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11,12,13,14
Using AT89C51 single-chip microcomputers.The AT89C51 single-chip microcomputers have the step-by-step operation of complete set from its internal hardware to software
System, the interval address section for also especially opening a dual-use function of ram in slice, 16 bytes, element address 20H~
2FH, it can both make byte processing, can also make position processing.The setting and use of the I/O pin of 51 single-chip microcomputers are very simple, when the pin
Make input pin in use, the pin need only be set to high level (during reset, each I/O mouthfuls is put high electricity).When the pin makees output pin
In use, being then high level or low level.
Embodiment three:
Illustrate present embodiment, the measurement detection module with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11,12,13,14
Using RPM6938 infrared receiving tubes, L5IR850B-45 infrared transmitting tubes.RPM6938 infrared receiving tubes are with NPN or positive-negative-positive
Structure, can lean on the photoelectric device of the irradiation control electric current of light.When illumination is mapped on semiconductor PN, electron hole is first generated
It is right, finally as the photoelectric current output being directly proportional to photoelectric current.Infrared transmitting tube constitutes luminous by infrarede emitting diode square
Body, PN junction is made with the high material of infrared radiation efficiency, and forward bias excites infrared light to PN junction Injection Current, its spectral power
It is distributed as 830~950nm of centre wavelength.
Embodiment four:
Illustrate present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11,12,13,14, the pressure sensor is adopted
Use BP800 pressure sensor chips.BP800 pressure sensors utilize the piezoresistive effect of monocrystalline silicon, based on monocrystalline silicon, by spy
Product are determined to advanced micromachining technology formation flexible member, in the integrated circuit technology formation four of its appropriate location
Equivalent strain resistor, constitutes Wheatstone bridge, applies a constant voltage (stream) to electric bridge, elasticity is applied to when there is pressure (pressure difference)
During element, the voltage signal for making output proportional to corresponding to pressing force is converted into voltage signal amplification through electronic circuit
Binary 4mA~20mADC outputs.
Embodiment five:
Illustrate present embodiment, the voice cue module with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11,12,13,14
Using using ISD1820 speech chips.ISD1820 chips use CMOS technology, include the preposition amplification of oscillator, microphone, automatic
Gain control, anti-aliasing filter, smoothing filter, speaker drive and FLASH arrays.Minimum recording-reproducing system only needs Mike
Wind, loudspeaker, two buttons, 3V power supplys and a small number of resistance capacitances.After recording playback operation terminates, chip is automatically into low power consumption node
Pattern, power consumption only 0.5 μ A.Chip uses many level Directly multilevel storage patented technologies, and each sampled value is stored directly in piece
In interior FLASH units, therefore, it is possible to very true, reproducing speech, music, tone and effect sound naturally, it is to avoid general solid
Quantizing noise and " metallic sound " of the body recording circuit caused by quantifying and compressing.Information can be preserved 100 years in ISD1820 piece
(without back-up source), FLASH units can record 10,000 times repeatedly.
Embodiment six:
Illustrate present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11,12,13,14, the memory modules are used
FM25256 chips.FM25256 is that the Nonvolatile memory of 256 kilobits uses advanced ferroelectricity process.One ferroelectric random is deposited
Take memory body or FRAM non-volatile and perform and read and write internal memory all right.It provides reliable data and retains 10 years together
When the complexity that eliminates, EEPROM and other nonvolatile memories caused by system-level integrity problem.FM25256 is
User provides benefit serial EEPROM true and changed as a hardware drop-down.FM25256 uses high speed SPI bus,
So as to enhance high speed writein ability FRAM technologies.
A kind of operation principle of the intelligent long-jump measuring system of physical education of the utility model is:Intelligent long-jump design of measuring system
Into a test blanket, it is divided into test section and non-test area, is made a distinction by acceptance line, test section is by being arranged on test blanket two
The infrared transmitting tube and infrared receiving terminal of side are tested, when tester lands, and tester's landing rear foot shelters from infrared light
Line, the achievement that infrared light draws tester is not received according to which specific infrared receiving tube, and measurement detection module transmitting is red
UV light is simultaneously received, and the signal received is amplified by signal acquisition module, is sent to signal processing module, draws tester
Achievement.Before tester's take-off, stand after scratch line, after tester breaks the rules, be arranged on the infrared transmitting tube on scratch line
And photoelectric sensor, photoelectric sensor do not receive infrared signal, then is determined as foul;When being landed after tester's take-off, fall
Ground is unstable, and body hypsokinesis is sat on the ground, and the pressure sensor for being arranged on non-test area detects pressure signal, then the criminal of being determined as
Rule.Module of swiping the card is operated by typing student information of swiping the card, key-press module control measuring system, display module display test
The long jump result of person, alarm module is used to carry out sound prompting when detecting tester's foul, and voice cue module is surveyed
Try is reminded and voice broadcast test result suddenly, and memory modules store the long jump result of tester, and power module is for measurement
System is powered.
Although the utility model is disclosed as above with preferred embodiment, it is not limited to the utility model, appoints
What person skilled in the art, is not departing from spirit and scope of the present utility model, can do various changes and modification, therefore
What protection domain of the present utility model should be defined by claims is defined.
Claims (6)
1. the intelligent long-jump measuring system of a kind of physical education, it is characterised in that the intelligent long-jump measuring system of the physical education includes surveying
Measure detection module, signal acquisition module, foul detection module, key-press input, module of swiping the card, power module, signal processing module,
Memory modules, display module, alarm module, voice cue module, pressure sensor, the output end of the measurement detection module connect
Then the input of signal acquisition module;The output end of the signal acquisition module is connected to the input of signal processing module;
The output end of the foul detection module is connected to the input of signal processing module;The output end of the key-press input is connected to
The input of signal processing module;The output end of the module of swiping the card is connected to the input of signal processing module;The signal
The output end of processing module is connected to the input of display module;The output end of the signal processing module is connected to alarm module
Input;The output end of the signal processing module is connected to the input of voice cue module;The pressure sensor
Output end is connected to the input of signal processing module;The signal processing module is connected to memory modules;The power module
Output end be connected to the input of signal processing module.
2. the intelligent long-jump measuring system of a kind of physical education according to claim 1, it is characterised in that:The signal transacting mould
Block uses AT89C51 single-chip microcomputers.
3. the intelligent long-jump measuring system of a kind of physical education according to claim 1, it is characterised in that:The measurement detection mould
Block uses RPM6938 infrared receiving tubes, L5IR850B-45 infrared transmitting tubes.
4. the intelligent long-jump measuring system of a kind of physical education according to claim 1, it is characterised in that:The pressure sensor
Using BP800 pressure sensor chips.
5. the intelligent long-jump measuring system of a kind of physical education according to claim 1, it is characterised in that:The voice message mould
Block uses ISD1820 speech chips.
6. the intelligent long-jump measuring system of a kind of physical education according to claim 1, it is characterised in that:The memory modules are adopted
Use FM25256 chips.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720081781.0U CN206391526U (en) | 2017-01-20 | 2017-01-20 | A kind of intelligent long-jump measuring system of physical education |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720081781.0U CN206391526U (en) | 2017-01-20 | 2017-01-20 | A kind of intelligent long-jump measuring system of physical education |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206391526U true CN206391526U (en) | 2017-08-11 |
Family
ID=59517903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720081781.0U Expired - Fee Related CN206391526U (en) | 2017-01-20 | 2017-01-20 | A kind of intelligent long-jump measuring system of physical education |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206391526U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111957026A (en) * | 2020-08-28 | 2020-11-20 | 长安大学 | Information acquisition system for sports testing |
-
2017
- 2017-01-20 CN CN201720081781.0U patent/CN206391526U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111957026A (en) * | 2020-08-28 | 2020-11-20 | 长安大学 | Information acquisition system for sports testing |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7837110B1 (en) | Magnetic stripe reader having digital peak detector | |
RU2006136875A (en) | ELECTRONIC DEVICE FOR MEASURING ARTERIAL PRESSURE, ABLE TO CARRY OUT THE SAVING OF MEASUREMENT RESULTS | |
US20110010572A1 (en) | Notebook computer and power-saving method thereof | |
CN205959602U (en) | Intelligence string instrument | |
CN107132408A (en) | Commercial electric detonator tube resistor safety instrumentation and method | |
CN206391526U (en) | A kind of intelligent long-jump measuring system of physical education | |
US6446512B2 (en) | Method of determining the type of fluid flow probe inserted into a flow meter | |
CN103941258A (en) | Ultrasonic rangefinder based on single-chip microcomputer | |
TW200823908A (en) | Intergrated circuit device and embeded memory testing method | |
CN103176092A (en) | Device and method for testing static bracelet | |
CN1971635A (en) | A numeral voice money detect pen | |
TW201241454A (en) | Testing system of illuminating element and method for testing illuminating element | |
CN109199801A (en) | SCM Based intelligent crutch and control method | |
CN109297442A (en) | SCM Based wireless ultrasonic rangefinder | |
CN207520327U (en) | A kind of intelligent guiding walking stick for blind person | |
CN204537305U (en) | The novel point cash inspecting machine of foreign currency amount is identified from survey length | |
CN206675518U (en) | A kind of heart rate sensor detection means | |
CN106597000B (en) | A kind of vinyl record turntable tachymeter | |
CN207335761U (en) | Home environment intelligent detection device based on FPGA | |
CN207586570U (en) | Ultrasonic ranging anti-myopia glasses | |
CN108403389A (en) | A kind of intelligent blind-guiding cap | |
CN207966158U (en) | A kind of vision protector of practicality | |
CN206400635U (en) | A kind of computer based library seats managing and control system | |
CN208861340U (en) | A kind of finger-print cipher application circuit and coded lock | |
CN201122300Y (en) | Portable bank note validator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20180120 |