CN107545820A - A kind of portable space teaching aid based on USB - Google Patents
A kind of portable space teaching aid based on USB Download PDFInfo
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- CN107545820A CN107545820A CN201710868593.7A CN201710868593A CN107545820A CN 107545820 A CN107545820 A CN 107545820A CN 201710868593 A CN201710868593 A CN 201710868593A CN 107545820 A CN107545820 A CN 107545820A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000008635 plant growth Effects 0.000 claims abstract description 11
- 230000012010 growth Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
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- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
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- 238000012946 outsourcing Methods 0.000 claims 1
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- 241000196324 Embryophyta Species 0.000 description 8
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- 230000035784 germination Effects 0.000 description 3
- 230000005486 microgravity Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
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- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 241001627144 Iris versicolor Species 0.000 description 1
- 108010064851 Plant Proteins Proteins 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The invention provides a kind of portable space teaching aid based on USB, including shell, encapsulating shell and cover plate, shell is the cavity structure of one end open, and cover plate is removably sealed on an openend of shell, and encapsulating shell is detachably arranged at enclosure；The interior space of encapsulating shell is growth room, the space as plant growth；Encapsulating shell side inside the housing is provided with pcb board, and pcb board is connected by USB interface with external 5V power supplys, and minisize pick-up head and LED illumination component are disposed with pcb board, and minisize pick-up head is provided with the middle part of LED illumination component；The opposite side of encapsulating shell inside the housing is provided with micro pump and water bag groove, and fan is provided with the shell wall of shell；Foundation disk is provided with the package, and foundation disk is provided with some foundation grooves；The present invention is convenient for carrying, small volume, in light weight, cost is low, interface is simple, can it is neglected in space station in the case of, grown for plant in the Laboratory Module of space station and necessary condition be provided.
Description
Technical field
The invention belongs to field of aerospace technology, more particularly, to a kind of portable space teaching aid in USB.
Background technology
Early in 2000, educational activities and promoting just be put into " international space station " important emerging application field it
One；In June, 2013, " divine boat ten " spacefarer have carried out head in more than 300 kilometers of space capsule from the ground for China teenager
Secondary space is given lessons, and the act that specifically China of interaction classroom system in this world initiates, greatly excites China teenager to science skill
The enthusiasm and courage that art is explored；Between 16 years of 2000-2016, " international space station " is leading to have carried out substantial amounts of educational activities,
It is intended to excite the enthusiasm of children's learning science all over the world, technology, engineering and mathematics；Wherein, item is more typically educated
" astroplankton class " education activities of mesh such as CSI series, this activity are completed in international space station, CSI a series of activities
Last for several years, carry out a variety of Bioexperiment (for example, crystallization of protein, plant generation, cell culture etc.)；Pass through international space station
Down-transmitting data and image, core curriculum teaching material is incorporated into as material, and encourages student to complete the " space of ground version in teacher
Biology Class " is tested, and compares the difference between the experimental result of oneself and the experimental result of space station astronaut.
2017, with the satisfactory completion of Chinese Space laboratory tasks, China manned space station engineering started comprehensively,
And plan to before and after 2022 to complete in-orbit assembling and put into effect, carry out large-scale space science experiment and engineering test；
Before and after 2024, it is in-orbit operation more than two decades " international space station " will face it is retired, at that time, Chinese Space station will turn into the whole world
Uniquely space station in orbit, is global science fan open space experimental resources, will also turn into teenager's education of science and technology
Explore the important base with reform.
The existing successful space probation type experiment teaching aid of comparison is mainly biology service company of the U.S. (BioServe) exploitation
Commercial Bioexperiment device (CGBA).The external envelope size of the device is 510mm × 280mm × 460mm, has temperature-controllable
Scope wide (4 DEG C~37 DEG C), equipped with data and image telemetry system operation can be remotely controlled, can be put into the apparatus different
Plug-in unit automatically test；Whole experimental provision volume is larger, need to be placed in the experiment deck tank of space station, cost compared with
Height, it is complicated.
The content of the invention
In view of this, the present invention is directed to propose a kind of portable space teaching aid based on USB, to solve prior art pilot scale
Experiment device volume is big, and occupancy Laboratory Module space is big, and cost is high, complicated, is unfavorable for teaching-guiding.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of portable space teaching aid based on USB, including shell, encapsulating shell and cover plate, shell are the sky of one end open
Cavity configuration, cover plate are removably sealed on an openend of shell, and encapsulating shell is detachably arranged at enclosure；Encapsulating shell it is interior
Space is growth room, the space as plant growth；Encapsulating shell side inside the housing is provided with pcb board, and pcb board passes through USB
Interface is connected with external 5V power supplys, and minisize pick-up head and LED illumination component are disposed with pcb board, in LED illumination component
Portion is provided with minisize pick-up head；The opposite side of encapsulating shell inside the housing is provided with micro pump and water bag groove, and water bag groove is used to hold
Discharged water bag, and the end that draws water of micro pump is arranged in water bag, and fan is provided with the shell wall of shell, and fan is used to exchange encapsulating shell
Inside and outside gas and heat；Foundation disk is provided with the package, and foundation disk is provided with some foundation grooves, seed is placed in foundation groove
And cultivation matrix, the water side of micro pump are arranged in foundation groove；Minisize pick-up head aligns setting with foundation groove, for shooting
Seed growth situation；
Further, level crossing is additionally provided with encapsulating shell, mirror tilt is arranged in encapsulating shell, and minute surface side court
To foundation groove, level crossing is used for observing the germination of foundation disk implants and the root variable condition that plant is follow-up；
Further, encapsulating shell is made of clear perspex material, can reduce the transmission of heat, and conveniently to plant
Growth conditions are observed；
Further, pcb board installation guide groove is provided with shell, pcb board is inserted in pcb board installation guide groove；
Further, encapsulating shell installation guide groove is provided with shell, encapsulating shell is inserted between two groups of encapsulating shells install guide groove；
Further, foundation groove, which is provided with tube wall, has the stainless steel tube of capillary structure, is filled around stainless steel tube
Porous ceramics with capillary structure；Wherein, cultivation matrix is peat moss；
Further, the cultivation matrix upper surface covering layer of polyethylene alcohol methylal resin material in foundation groove, prevents
Only because the microgravity environment of space station causes cultivation matrix to float；
Further, the external envelope size of shell is not more than 20cm × 10cm × 10cm, and quality is not more than 2kg；
Further, the film filter screen being provided with the fan of shell, harmful gas filter is housed on film filter screen；Film
Filter screen swaps the gas in the gas and space station in plant growth room；
Further, main control module, state detection module, execution module, image and digital transmission module, USB are included on pcb board
Interface and communication module and power management module；5V power-supply devices are as power supply；Power management module is used for the management of power supply；Hold
Row module external device includes fan, micro pump, LED illumination component；State detection module external device and detection state bag
Include time calendar circuit, illumination condition, power supply state；Shooting control module is additionally provided with main control module, images control module
Send a command to microcam；The memory module of microcam is connected in USB interface and communication module, for image with
The transmission of data；Anti- deadlock module is additionally provided with main control module；Prevent master control system from crashing；Wherein, it is soft on main control module
Part module includes data acquisition module, data transmission module, state detection module, watchdog module, power management module, taken pictures
Management module, error mechanism module；Hardware module includes AVR single chip, USB HUB modules, microcam, USB and turns TTL moulds
Block, clock circuit and power-down retaining circuit；
Relative to prior art, the portable space teaching aid of the present invention based on USB has the advantage that：
Portable space teaching aid of the present invention based on USB is convenient for carrying, small volume, in light weight, cost is low, interface
Simply, can it is neglected in space station in the case of, grown for plant in the Laboratory Module of space station provide necessary condition (illumination,
Moisture content, nutriment, room temperature, carbon dioxide etc.)；Teenager can be allowed really to participate in space science experimental study, with space
The plant that stands culture is research object, encourages teenager to carry out world contrast test, preferably excites them to the emerging of space probation
Interest.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the space teaching aid structure schematic diagram described in the embodiment of the present invention；
Fig. 2 is the space teaching aid foundation dish structure top view described in the embodiment of the present invention；
Fig. 3 is the space teaching aid shell schematic perspective view described in the embodiment of the present invention；
Fig. 4 is the space teaching aid control system schematic diagram described in the embodiment of the present invention；
Description of reference numerals：
1-USB interfaces；2- shells；3- growth rooms；4- level crossings；5- foundation disks；6- water bag grooves；7- micro pumps；8- is sealed
Fill shell；9- fans；10- minisize pick-up heads；11-LED illumination components；12-PCB plates；13- foundation grooves；14- seeds；15- cultivation bases
Matter；16-PCB plates install guide groove；17- cover plates；18- encapsulating shells install guide groove.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction or hint phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
With reference to shown in Fig. 1,2 and 3, a kind of portable space teaching aid based on USB, including shell 2, encapsulating shell 8 and cover plate
17, shell 2 is the cavity structure of one end open, and cover plate 17 is removably sealed on an openend of shell 2, and encapsulating shell 8 is removable
Unload and be arranged on inside shell 2；The interior space of encapsulating shell 8 is growth room 3, the space as plant growth；Envelope inside shell 2
Dress shell 8 side is provided with pcb board 12, and pcb board 12 is connected with extraneous 5V power supplys by usb 1, is disposed with pcb board 12 micro-
Type camera 10 and LED illumination component 11, minisize pick-up head 10 is provided with the middle part of LED illumination component 11；Inside shell 2
The opposite side of encapsulating shell 8 is provided with micro pump 7 and water bag groove 6, and water bag groove 6 is used to receive water bag, and the end that draws water of micro pump 7 is set
Put in water bag, fan 9 is provided with the shell wall of shell 2, fan 9 is used to exchange the gas and heat inside and outside encapsulating shell 8；Sealing
Dress shell 8 is provided with foundation disk 5, and foundation disk 5 is provided with some foundation grooves 13, seed 14 and cultivation matrix are placed in foundation groove 13
15, the water side of micro pump 7 is arranged in foundation groove 13；Minisize pick-up head 10 aligns setting with foundation groove 13, for shooting
Seed growth situation；Wherein, level crossing 4 is additionally provided with encapsulating shell 8, level crossing 4 is inclined in encapsulating shell 8, and minute surface
Towards foundation groove 13, level crossing 4 is used for observing the germination of the implants of foundation disk 13 and the root change that plant is follow-up for side
Change state；Wherein, encapsulating shell 8 is made of clear perspex material, can reduce the transmission of heat, and conveniently to plant growth
State is observed；Wherein, pcb board installation guide groove 16 is provided with shell 2, pcb board 12 is inserted in pcb board installation guide groove 16；
Wherein, encapsulating shell installation guide groove 18 is provided with shell 2, encapsulating shell 8 is inserted between two groups of encapsulating shells install guide groove 18；Wherein,
Foundation groove 13, which is provided with tube wall, has the stainless steel tube of capillary structure, is filled around stainless steel tube with capillary structure
Porous ceramics；Wherein, cultivation matrix 15 is peat moss；Wherein, the upper surface of cultivation matrix 15 in foundation groove 13 covers one layer
Vinyl-formal resin material, prevent that the microgravity environment due to space station from causing cultivation matrix to float；Wherein, shell 2
External envelope size be no more than 20cm × 10cm × 10cm, quality is no more than 2kg；Wherein, it is provided with the fan 9 of shell 2 thin
Membrane mesh, harmful gas filter is housed on film filter screen；Film filter screen is by the gas and space station in phytotron 3
Gas swaps；
With reference to shown in Fig. 4, wherein, main control module, state detection module, execution module, image and number are included on pcb board 12
Transmission module, USB interface and communication module and power management module；5V power-supply devices are as power supply；Power management module is used for electricity
The management in source；Execution module external device includes fan, micro pump, LED illumination component；State detection module external device and
Detection state includes time calendar circuit, illumination condition, power supply state；Shooting control module is additionally provided with main control module, is taken the photograph
As control module sends a command to microcam；The memory module of microcam is connected in USB interface and communication module,
Transmission for image and data；Anti- deadlock module is additionally provided with main control module；Prevent master control system from crashing；
Wherein, the software module on main control module include data acquisition module, data transmission module, state detection module,
Watchdog module, power management module, management module of taking pictures, error mechanism module；Hardware module includes AVR single chip
(ATMEGA64L), USB HUB modules (1TO4), microcam, USB turn TTL modules (UART), clock circuit and power down guarantor
Hold circuit；
Particularly, the present invention is protected for the product framework set up between all parts of space teaching aid, therefore
The programme-control and control method of the present invention uses existing ripe corresponding module, belongs to software well known to those skilled in the art
Control technology；
Space teaching aid of the present invention uses the modularity control mode based on USB data transmission, using ATmega64L as
Control centre, control each functional module to work, data message is collected, handled and set, and plant growth image is entered
Row is centrally stored；Wherein ECU can sort out be divided into main control module, state detection module, execution module, time system module,
Image and digital transmission module, USB interface and communication module, power management module,
Control method mainly carries out the collection and reading of data using the interrupt concept, during interruption is included caused by clock chip
The instruction that disconnected and space teaching aid superordinate elements are sent, according to instruction carry out the control of water, the break-make of LED, fan switch,
The task such as take pictures；
Wherein, major cycle flow：In major cycle, initialization operation is carried out first, and then centering disconnecting receives upper
Machine instruction is parsed, and execution module is operated according to host computer instruction；
(1) initialized after system electrification, as the Central Shanxi Plain is disconnected, close house dog, initialization clock frequency, timer are reset, timing
Device resets, initializes I/O pins, sunshine flag clear plus water flag clear；
(2) fan is opened, LED illumination component is opened and micro pump circuit, juxtaposition accordingly indicates；
(3) the self-defined humiture collection time is decided whether according to the actual requirements or carries out watering operation.If it is not required to
Self-defining operation is wanted, system is directly entered automatic control module, and (humiture collection now and watering moment are automatically every by system
Processing operation is carried out every 12h)；
(4) if desired take pictures, call subprogram of taking pictures, otherwise go to step (5)；
(5) when clock reaches the moment at night, closing LED illumination component juxtaposition accordingly indicates, otherwise goes to step (6)；
(6) when clock reaches automatic watering function moment and humiture collection moment, calling automatic watering function sub-process and humiture
Sub-process is gathered, and waits the arrival at next day moment, otherwise goes to step (4)；
(7) restart a moment when clock reaches, go to step (4), otherwise repeat step (2)；
Unlatching/closing LED sub-process：First turn on LED lamp drive circuit, judge whether it is normally-open, if just normally opened
Qi Ze puts sunshine mark, otherwise reopens LED lamp drive circuit；It is similar to unlatching to close LED sub-process；
Automatic watering function sub-process：Watering time timing is reset first, is opened automatic watering function circuit, is judged whether to reach watering
Cut-off time, closed if due in and pour water circuit, otherwise wait for the arrival of watering cut-off time；
Using space teaching aid of the present invention, by taking arabidopsis space culture experiment as an example, the plant is fast-growth type
Plant, its seed carries out illumination cultivation can sprout after 2-3 days, general only from harvest seed is seeded into vegetative growth phase
Need 6 weeks or so；Therefore, experimental period is arranged to 30 days；
In the ground preparatory stage, the seed of arabidopsis is respectively put into the foundation groove 13 in foundation disk 5, in foundation groove 13
It is filled with peat moss, peat moss provides nutriment as the main component of cultivation matrix 15 for seed；Debugging is finished
Pcb board be put into along installation guide groove 16 in shell 2, micro pump 7 and fan 9 are individually fixed in relevant position；Check gas
After close property, cover plate 17 is covered；Pay attention to now, it is ensured that drying is kept in foundation groove 13, to prevent that arabidopsis seed is advance on ground
Germination；
In the space station experimental stage, it is necessary to which space teaching aid and 5V power supplys are attached by astronaut, spatial plant life is opened
Long experiment；ECU is started working, and LED illumination group 11 simulates the environment round the clock on ground, and good illumination is created for arabidopsis
Condition, photo resistance is provided with growth room 3, for measuring the intensity of illumination in phytotron 3, makes the illumination symbol of interior
Close the optimal luminous flux of plant growth；The circulation of fan 9 is opened, the film filter screen on shell 2 by the gas in phytotron 3 with
Gas in space station is swapped, and harmful gas filter is housed on film filter screen, prevents ethene caused by arabidopsis from volatilizing
To outside space teaching aid；In view of the flow behavior of liquid in the environment of the microgravity of space station, micro pump 7 uses membrane pump, when
After experiment starts, control circuit adjusts motor voltage accurately to control watering flow, controls each watering time to control list
Secondary moisture content quantity delivered；Minisize pick-up head is once shot every 12h, and the plant growth state picture photographed is stored in
In SD card, the information in SD card is periodically reached into space station data center by USB port, to reach by experimental data and at present
Ground.
This outer space experiment teaching aid small volume, light weight, danger is not formed to space platform and spacefarer, can be in space station
Plant incubation is automatically performed, in addition, student can utilize same device in classroom or family, with the astronaut in space station
Start plant growth experiment together, and the experimental image between the world is contrasted, analyzed, preferably excite numerous students'
Space probation enthusiasm.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (10)
- A kind of 1. portable space teaching aid based on USB, it is characterised in that：Including shell (2), encapsulating shell (8) and cover plate (17), Shell (2) is the cavity structure of one end open, and cover plate (17) is removably sealed on an openend of shell (2), encapsulating shell (8) It is internal to be detachably arranged at shell (2)；The interior space of encapsulating shell (8) is growth room (3), the space as plant growth；Outside Internal encapsulating shell (8) side of shell (2) is provided with pcb board (12), and pcb board (12) can be connected by USB interface (1) and external 5V power supplys Connect, minisize pick-up head (10) and LED illumination component (11) are disposed with pcb board (12), at the middle part of LED illumination component (11) Provided with minisize pick-up head (10)；Micro pump (7) and water bag groove are provided with the opposite side of the internal encapsulating shell (8) of shell (2) (6), water bag groove (6) can receive water bag, and the end that draws water of micro pump (7) is arranged on water bag water side, on the shell wall of shell (2) Provided with fan (9)；Foundation disk (5) is provided with encapsulating shell (8), foundation disk (5) is provided with some foundation grooves (13), foundation groove (13) seed (14) and cultivation matrix (15) are placed in, the water side of micro pump (7) is arranged in foundation groove (13)；It is miniature to take the photograph As head (10) and foundation groove (13) align setting.
- 2. a kind of portable space teaching aid based on USB according to claim 1, it is characterised in that in encapsulating shell (8) It is additionally provided with level crossing (4), level crossing (4) is inclined in encapsulating shell (8), and minute surface side is towards foundation groove (13).
- 3. a kind of portable space teaching aid based on USB according to claim 1, it is characterised in that encapsulating shell (8) uses Clear perspex material is made.
- 4. a kind of portable space teaching aid based on USB according to claim 1, it is characterised in that be provided with shell (2) Pcb board installation guide groove (16), pcb board (12) are inserted in pcb board installation guide groove (16).
- 5. a kind of portable space teaching aid based on USB according to claim 1, it is characterised in that be provided with shell (2) Encapsulating shell installation guide groove (18), encapsulating shell (8) are inserted between two groups of encapsulating shell installation guide grooves (18).
- 6. a kind of portable space teaching aid based on USB according to claim 1, it is characterised in that on foundation groove (13) There is the stainless steel tube of capillary structure provided with tube wall, porous ceramics of the filling with capillary structure around stainless steel tube.
- 7. a kind of portable space teaching aid based on USB according to claim 1, it is characterised in that in foundation groove (13) Interior cultivation matrix (15) upper surface covering layer of polyethylene alcohol methylal resin material.
- A kind of 8. portable space teaching aid based on USB according to claim 1, it is characterised in that the outsourcing of shell (2) Network size is not more than 20cm × 10cm × 10cm, and quality is not more than 2kg.
- A kind of 9. portable space teaching aid based on USB according to claim 1, it is characterised in that the fan of shell (2) (9) the film filter screen that place is provided with, harmful gas filter is housed on film filter screen.
- 10. a kind of portable space teaching aid based on USB according to claim 1, it is characterised in that on pcb board (12) Including main control module, state detection module, execution module, image and digital transmission module, USB interface and communication module and power management Module；5V power-supply devices are as power supply；Power management module is used for the management of power supply；Execution module external device include fan, Micro pump, LED illumination component；State detection module external device and detection state include time calendar circuit, illumination condition, Power supply state；Shooting control module is additionally provided with main control module, shooting control module sends a command to microcam；It is miniature The memory module of video camera is connected in USB interface and communication module, the transmission for image and data；On main control module also Provided with anti-deadlock module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868593.7A CN107545820B (en) | 2017-09-22 | 2017-09-22 | Portable space teaching aid based on USB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868593.7A CN107545820B (en) | 2017-09-22 | 2017-09-22 | Portable space teaching aid based on USB |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107545820A true CN107545820A (en) | 2018-01-05 |
| CN107545820B CN107545820B (en) | 2024-02-02 |
Family
ID=60964602
Family Applications (1)
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| CN201710868593.7A Active CN107545820B (en) | 2017-09-22 | 2017-09-22 | Portable space teaching aid based on USB |
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| CN110796919A (en) * | 2019-11-11 | 2020-02-14 | 上和弦(北京)教育科技有限公司 | Highly-integrated music teaching demonstration system |
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