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Résultats pour
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1.
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METHOD FOR READING FINE DUST BY USING LIDAR
| Numéro d'application |
KR2021012968 |
| Numéro de publication |
2022/102951 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2021-09-23 |
| Date de publication |
2022-05-19 |
| Propriétaire |
- PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION (République de Corée)
- AICT (République de Corée)
|
| Inventeur(s) |
- Noh, Young Min
- Kim, Kwan Chul
|
Abrégé
The present invention relates to a method for reading fine dust by using lidar and, more specifically, to a method for reading fine dust by calculating mass concentrations of fine particles and coarse particles by altitude by using a dissipation coefficient according to the distance by wavelength through lidar observation. The method for reading fine dust, according to the present invention, can identify not only the distribution of a total amount of fine dust, but also the spatial distribution according to the size of fine dust.
Classes IPC ?
- G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
- G01S 17/95 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la météorologie
- G01N 15/00 - Recherche de caractéristiques de particulesRecherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux
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2.
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ENERGY TRADING SYSTEM UTILIZING POSITION-BASED BLOCKCHAIN TECHNOLOGY
| Numéro d'application |
KR2020009370 |
| Numéro de publication |
2022/014747 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2020-07-16 |
| Date de publication |
2022-01-20 |
| Propriétaire |
AICT (République de Corée)
|
| Inventeur(s) |
- Kim, Young Gon
- Choi, Jung In
- Heo, Keol
|
Abrégé
The present disclosure relates to an energy trading system utilizing a position-based blockchain technology using a blockchain ledger, the system comprising: a fixed prosumer device including an energy storage unit for storing energy and a control unit for discharging energy stored in the energy storage unit; a mobile prosumer device including a search unit which searches for an optimal fixed prosumer device in a ledger on the basis of a price and a position, wherein the mobile prosumer device includes a positioning unit for identifying a position of the mobile prosumer device, and an energy storage unit in which energy discharged from the fixed prosumer device is charged; and a blockchain settlement server including a settlement unit for settling costs with the fixed prosumer device according to the amount of energy charged in the energy storage unit of the mobile prosumer device, and a ledger writing unit for writing, in the ledger, at least one of a price and a position for a trade between the fixed prosumer device and the mobile prosumer device.
Classes IPC ?
- G06Q 30/06 - Transactions d’achat, de vente ou de crédit-bail
- G06Q 30/02 - MarketingEstimation ou détermination des prixCollecte de fonds
- G06Q 50/06 - Fourniture d’énergie ou d’eau
- H04L 29/08 - Procédure de commande de la transmission, p.ex. procédure de commande du niveau de la liaison
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3.
|
MOBILE VIEWING SYSTEM
| Numéro d'application |
KR2018005459 |
| Numéro de publication |
2019/216468 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2018-05-11 |
| Date de publication |
2019-11-14 |
| Propriétaire |
- AICT (République de Corée)
- DOOREESYSTEM TECHNOLOGY CO.LTD (République de Corée)
|
| Inventeur(s) |
- Kwon, Jung Hoon
- Yun, Sun Hwa
|
Abrégé
A mobile viewing system according to an embodiment of the present invention may comprise: a file loader for reading motion capture data of a standardized file format received from the outside and storing information of a marker and a frame; and a renderer for rendering a 3D object at a screen position of 3D coordinates of a marker acquired through the file loader, and allowing motion data to be displayed on a screen of a terminal.
Classes IPC ?
- G06T 15/20 - Calcul de perspectives
- G06T 7/246 - Analyse du mouvement utilisant des procédés basés sur les caractéristiques, p. ex. le suivi des coins ou des segments
- G06T 15/00 - Rendu d'images tridimensionnelles [3D]
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4.
|
ENERGY BIG DATA MANAGEMENT SYSTEM AND METHOD THEREFOR
| Numéro d'application |
KR2017005385 |
| Numéro de publication |
2018/216828 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2017-05-24 |
| Date de publication |
2018-11-29 |
| Propriétaire |
AICT (République de Corée)
|
| Inventeur(s) |
- Song, Min Goo
- Choi, Jung In
|
Abrégé
Disclosed is a method for managing energy big data by using a spark cluster server and a web client, the method comprising: a step for allowing a cluster server to process and manage energy big data collected in real time; and an information transmission step for allowing the cluster server to transmit, to the web client, information to be displayed on a screen of the web client according to a request of the web client, wherein the energy big data processing step comprises the steps of: classifying the energy big data including structured data and unstructured data; analyzing the classified energy big data; and storing, in the cluster server, the analyzed energy big data.
Classes IPC ?
- G06F 17/30 - Recherche documentaire; Structures de bases de données à cet effet
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5.
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GRAPHENE OXIDE/CARBON NANOTUBE COMPOSITE FIBER HAVING HETEROJUNCTION STRUCTURE, AND METHOD FOR MANUFACTURING GRAPHENE OXIDE/GRAPHENE COMPOSITE FIBER OR GRAPHENE OXIDE/GRAPHENE/CARBON NANOTUBE COMPOSITE FIBER
| Numéro d'application |
KR2017001239 |
| Numéro de publication |
2018/004099 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2017-02-04 |
| Date de publication |
2018-01-04 |
| Propriétaire |
- AICT (République de Corée)
- PURITECH CO., LTD. (République de Corée)
|
| Inventeur(s) |
- Park, Sang Yoon
- Shin, Min Kyoon
- Kim, Hyuk Joon
- Yeo, Chang Su
- Cho, Yun Jae
- Cho, Kang Rae
|
Abrégé
The present invention provides: a graphene oxide/carbon nanotube composite fiber having a heterojunction structure; and a method for manufacturing a graphene oxide/graphene composite fiber or a graphene oxide/graphene/carbon nanotube composite fiber, comprising: a) a step of preparing a first gel fiber by spinning a graphene oxide dispersion solution in a coagulation bath containing a first coagulation component and b) a step of preparing a second gel fiber by spinning a carbon nanotube dispersion solution, a graphene dispersion solution, or a mixture dispersion solution thereof in a coagulation bath containing a first coagulation component, wherein the steps are simultaneously carried out; and c) joining, washing, and drying the simultaneously prepared first gel fiber and second gel fiber.
Classes IPC ?
- D01F 9/12 - Filaments de carboneAppareils spécialement adaptés à leur fabrication
- D01D 5/06 - Méthodes de filage au mouillé
- D06H 5/00 - Assemblage des matériaux textiles
- D01D 10/06 - Lavage ou séchage
- D01D 5/30 - Filaments conjuguésEnsembles de filage à cet effet
- D01D 5/34 - Structure "âme-gaine"Ensembles de filage à cet effet
- D01F 1/10 - Autres agents modifiant les propriétés de ces filaments
- D01D 10/02 - Traitement thermique
- D01F 1/09 - Addition de substances à la solution de filage ou à la masse fondue pour fabriquer des filaments électroconducteurs ou antistatiques
- H01M 4/133 - Électrodes à base de matériau carboné, p. ex. composés d'intercalation du graphite ou CFx
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6.
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METHOD FOR PRODUCING GRAPHENE OXIDE/CARBON NANOTUBE COMPOSITE FIBER, GRAPHENE OXIDE/GRAPHENE COMPOSITE FIBER OR GRAPHENE OXIDE/GRAPHENE/CARBON NANOTUBE COMPOSITE FIBER USING WET SPINNING PROCESS
| Numéro d'application |
KR2017001238 |
| Numéro de publication |
2017/191887 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2017-02-04 |
| Date de publication |
2017-11-09 |
| Propriétaire |
- AICT (République de Corée)
- PURITECH CO., LTD. (République de Corée)
|
| Inventeur(s) |
- Park, Sang Yoon
- Shin, Min Kyoon
- Kim, Hyuk Joon
- Yeo, Chang Su
- Cho, Yun Jae
- Cho, Kang Rae
|
Abrégé
The present invention provides a method for producing graphene oxide/carbon nanotube composite fiber, graphene oxide/graphene composite fiber or graphene oxide/graphene/carbon nanotube composite fiber, the method comprising the steps of: a) preparing graphene oxide/carbon nanotube dispersion solution, graphene oxide/graphene dispersion solution or graphene oxide/graphene/carbon nanotube dispersion solution; b) producing a gel fiber by spinning the dispersion solution into a coagulating bath including at least one type of first coagulation component selected from the group consisting of CTAB, chitosan, CaCl2, NaOH, and KOH, and at least one type of second coagulation component selected from the group consisting of polyvinyl alcohol (PVA), polymethylmethacrylate (PMMA), polyethyleneimine (PEI), polyvinyl pyrrolidone (PVP) and polyethylene oxide (PEO); and c) drying the gel fiber.
Classes IPC ?
- D01F 9/12 - Filaments de carboneAppareils spécialement adaptés à leur fabrication
- D01F 8/00 - Filaments, ou similaires, faits par l’homme, conjugués, c.-à-d. à plusieurs composantsLeur fabrication
- D01D 1/02 - Préparation des solutions de filage
- D01D 5/06 - Méthodes de filage au mouillé
- D01D 10/06 - Lavage ou séchage
- D01F 1/09 - Addition de substances à la solution de filage ou à la masse fondue pour fabriquer des filaments électroconducteurs ou antistatiques
- C01B 32/182 - Graphène
- C01B 32/158 - Nanotubes de carbone
- D02G 3/44 - Filés ou fils caractérisés par la destination pour laquelle ils ont été conçus
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7.
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METHOD FOR MANUFACTURING GRAPHENE OXIDE FIBER, GRAPHENE FIBER, AND GRAPHENE OR GRAPHENE (OXIDE) COMPOSITE FIBER BY USING ELECTRIC FIELD-INDUCED WET SPINNING PROCESS
| Numéro d'application |
KR2017001237 |
| Numéro de publication |
2017/188564 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2017-02-04 |
| Date de publication |
2017-11-02 |
| Propriétaire |
- AICT (République de Corée)
- PURITECH CO., LTD. (République de Corée)
|
| Inventeur(s) |
- Park, Sang Yoon
- Shin, Min Kyoon
- Kim, Hyuk Joon
- Yeo, Chang Su
- Cho, Yun Jae
- Cho, Kang Rae
|
Abrégé
The present invention provides a method for manufacturing a graphene oxide fiber or a graphene fiber, comprising the steps of: dispersing graphene oxide or graphene in a solvent so as to prepare a spinning solution; wet spinning the same in a coagulation bath in a state in which an electric field is applied in the discharge direction of the spinning solution, so as to manufacture a gel fiber; and drying the gel fiber.
|
8.
|
MOVABLE TABLE SYSTEM
| Numéro d'application |
KR2016001507 |
| Numéro de publication |
2017/142102 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2016-02-15 |
| Date de publication |
2017-08-24 |
| Propriétaire |
AICT (République de Corée)
|
| Inventeur(s) |
Bang, Young Bong
|
Abrégé
The present disclosure relates to a movable table system comprising: a first linear motor and a second linear motor positioned so as to face the first linear motor, the first and second linear motors comprising a driving unit and moving unit for moving a table in a first direction; a third linear motor and a fourth linear motor positioned so as to face the third linear motor, the third and fourth linear motors comprising a driving unit and moving unit for moving the table in a second direction; a first connecting unit for connecting the first linear motor with the second linear motor; a second connecting unit for connecting the third linear motor with the fourth linear motor; and support units for supporting the first, second, third, and fourth linear motors, the movable table system being characterized by comprising at least one of a first linear guide to a fourth linear guide positioned between the driving units of the first to fourth linear motors and the support units.
Classes IPC ?
- G12B 5/00 - Réglage de la position ou de l'attitude, p. ex. niveau d'instruments ou d'autres appareils, ou de leurs parties constitutivesCompensation des effets d'inclinaison ou d'accélération, p. ex. pour appareils d'optique
- B23Q 1/62 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en translation uniquement avec deux guidages en translation uniquement à axes perpendiculaires, p. ex. chariots à mouvements transversaux
- B23Q 5/28 - Transmissions électriques
|
9.
|
NON-LABEL IMAGING SYSTEM FOR SELECTIVE MICROSCOPY OF PERIPHERAL NERVE
| Numéro d'application |
KR2017001823 |
| Numéro de publication |
2017/142376 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2017-02-20 |
| Date de publication |
2017-08-24 |
| Propriétaire |
- SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION (République de Corée)
- AICT (République de Corée)
|
| Inventeur(s) |
- Yoo, Jung Sun
- Lee, Tae Rin
|
Abrégé
Disclosed according to an embodiment of the present disclosure is a system and method for selectively imaging peripheral nerves rather than other tissues such as muscles, vessels, adipose tissues, ligaments, etc., without external labels, in which intensive reflective light emitted at a specific excitation wavelength from the peripheral nerve can be detected on the basis of the thin-film interference phenomenon caused by the characteristic lamellar structure of the myelin sheath of nerve fibers.
Classes IPC ?
- A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
|
10.
|
METHOD FOR PRODUCING GENOME-ENGINEERED PLANTS FROM PLANT PROTOPLASTS AT HIGH EFFICIENCY
| Numéro de document |
03001232 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2016-10-06 |
| Date de disponibilité au public |
2017-04-13 |
| Date d'octroi |
2020-07-07 |
| Propriétaire |
- SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION (République de Corée)
- INSTITUTE FOR BASIC SCIENCE (République de Corée)
- AICT (République de Corée)
|
| Inventeur(s) |
- Kim, Jin Soo
- Kim, Jungeun
- Choe, Sunghwa
- Woo, Je Wook
- Kwon, Soon Il
- Kim, Hyeran
|
Abrégé
The present invention relates to a method for increasing the production efficiency of genome-modified plants regenerated from plant protoplasts by using a Cas protein-guide RNA ribonucleoprotein (RNP). The method for increasing the production efficiency of genome-modified plants of the present invention can efficiently produce plants with mutated target genes, and can also minimize the insertion of foreign DNA into plants. Therefore, the present invention can be very usefully used in various fields such as agriculture, food and biotechnology fields.
Classes IPC ?
- A01H 1/00 - Procédés de modification des génotypes
- A01H 4/00 - Reproduction de plantes par des techniques de culture de tissus
- A01H 5/00 - Angiospermes, c.-à-d. plantes à fleurs, caractérisées par leurs parties végétalesAngiospermes caractérisées autrement que par leur taxonomie botanique
- C07K 14/415 - Peptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant de végétaux
- C12N 5/10 - Cellules modifiées par l'introduction de matériel génétique étranger, p. ex. cellules transformées par des virus
- C12N 9/02 - Oxydoréductases (1.), p. ex. luciférase
- C12N 9/22 - Ribonucléases
- C12N 15/09 - Technologie d'ADN recombinant
- C12N 15/11 - Fragments d'ADN ou d'ARNLeurs formes modifiées
- C12N 15/29 - Gènes codant pour des protéines végétales, p. ex. thaumatine
- C12N 15/53 - Oxydoréductases (1)
- C12N 15/82 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes eucaryotes pour cellules végétales
- C12N 15/90 - Introduction stable d'ADN étranger dans le chromosome
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11.
|
METHOD FOR PRODUCING WHOLE PLANTS FROM PROTOPLASTS
| Numéro d'application |
KR2016011217 |
| Numéro de publication |
2017/061806 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2016-10-06 |
| Date de publication |
2017-04-13 |
| Propriétaire |
- INSTITUTE FOR BASIC SCIENCE (République de Corée)
- SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION (République de Corée)
- AICT (République de Corée)
|
| Inventeur(s) |
- Kim, Jin Soo
- Kim, Jungeun
- Choe, Sunghwa
- Woo, Je Wook
- Kwon, Soon Il
|
Abrégé
The present invention relates to method for preparing a plant from a protoplast comprising knocking-out or knocking-in one or more the endogenous gene of the protoplast, and the plant regenerated from a genome-modified protoplast prepared by the above method.
Classes IPC ?
- C12N 15/82 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes eucaryotes pour cellules végétales
- C12N 9/22 - Ribonucléases
- A01H 5/12 - Feuilles
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12.
|
METHOD FOR PRODUCING GENOME-MODIFIED PLANTS FROM PLANT PROTOPLASTS AT HIGH EFFICIENCY
| Numéro d'application |
KR2016011216 |
| Numéro de publication |
2017/061805 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2016-10-06 |
| Date de publication |
2017-04-13 |
| Propriétaire |
- INSTITUTE FOR BASIC SCIENCE (République de Corée)
- SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION (République de Corée)
- AICT (République de Corée)
|
| Inventeur(s) |
- Kim, Jin Soo
- Kim, Jungeun
- Choe, Sunghwa
- Woo, Je Wook
- Kwon, Soon Il
- Kim, Hyeran
|
Abrégé
The present invention relates to a method for increasing the production efficiency of genome-modified plants regenerated from plant protoplasts by using a Cas protein-guide RNA ribonucleoprotein (RNP). The method for increasing the production efficiency of genome-modified plants of the present invention can efficiently produce plants with mutated target genes, and can also minimize the insertion of foreign DNA into plants. Therefore, the present invention can be very usefully used in various fields such as agriculture, food and biotechnology fields.
Classes IPC ?
- C12N 15/82 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes eucaryotes pour cellules végétales
- C12N 9/22 - Ribonucléases
- A01H 5/12 - Feuilles
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13.
|
LOCATION-BASED ELECTRIC POWER MANAGEMENT METHOD AND SYSTEM THEREOF
| Numéro d'application |
KR2015004784 |
| Numéro de publication |
2016/163584 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2015-05-13 |
| Date de publication |
2016-10-13 |
| Propriétaire |
AICT (République de Corée)
|
| Inventeur(s) |
- Choi, Jung In
- Kim, Mi Jeom
- Yoon, Jae Weon
|
Abrégé
Disclosed is a location-based electric power management system comprising: an electric power management server; an access point capable of communicating with the electric power management server and having an address and an ID; an electric power measurement device connected to the access point and having an ID; and a user terminal connectable to the access point and capable of communicating with the electric power management server, wherein the electric power management server comprises: an event transmission unit for transmitting an electric power management event message to the user terminal; and an information receiving unit for receiving, from the user terminal, user adjustment information and address and ID information of the access point to which the user terminal is connected.
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14.
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THREE-DIMENSIONAL BIOLOGICAL INFORMATION PROCESSING METHOD AND SYSTEM THEREFOR
| Numéro d'application |
KR2015005243 |
| Numéro de publication |
2016/140400 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2015-05-26 |
| Date de publication |
2016-09-09 |
| Propriétaire |
AICT (République de Corée)
|
| Inventeur(s) |
Tai, Joo Ho
|
Abrégé
The present disclosure provides a three-dimensional biological information processing method and a system therefor, wherein the three-dimensional biological information processing method comprises: an initial screen display step for displaying a three-dimensional body model, an input tool type selection part, and a degree information input bar on a screen; a degree input step for receiving degree information which a user has selected; a position input step for receiving position information which the user has designated on a surface of the three-dimensional body model, using an input tool; a corresponding information display step for displaying designated position information and selected degree information on the screen to correspond to each other; and a storage step for processing and storing the designated degree information and the selected position information. Therefore, the present disclosure enables efficient displaying and storing of various biometric information on three-dimensional modeling.
Classes IPC ?
- G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
- G06Q 50/22 - Aide sociale ou assistance sociale, p. ex. activités de développement communautaire ou services de consultation
- G06Q 50/24 - Gestion de dossiers médicaux (traitement de données médicales ou biologiques à des fins scientifiques G06F 19/00)
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15.
|
WALKING SYSTEM
| Numéro d'application |
KR2015000365 |
| Numéro de publication |
2016/114422 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2015-01-14 |
| Date de publication |
2016-07-21 |
| Propriétaire |
AICT (République de Corée)
|
| Inventeur(s) |
Bang, Young Bong
|
Abrégé
The present disclosure relates to a walking system comprising: a walking aid coupled to the legs of a walking system user; at least one sensor for measuring the movement of the arms of the walking system user; and a controller for controlling the movement of the walking aid according to information measured by the sensor.
Classes IPC ?
- A61H 3/00 - Appareils pour aider des personnes handicapées à marcher
- A61F 5/052 - Dispositifs pour étirer ou réduire les membres fracturésDispositifs pour tractionÉclisses pour l'immobilisation spécialement adaptés pour faciliter la marche, p. ex. attelles ambulatoires
- A61B 5/11 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre
|
16.
|
AUTOMATIC REPOSITIONING SYSTEM FOR MEDICAL EQUIPMENT
| Numéro d'application |
KR2015000366 |
| Numéro de publication |
2016/114423 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2015-01-14 |
| Date de publication |
2016-07-21 |
| Propriétaire |
AICT (République de Corée)
|
| Inventeur(s) |
- Bang, Young Bong
- Ye, Sung Joon
- Choi, Ji Won
- Lee, Chang Hyuk
|
Abrégé
The present disclosure relates to an automatic repositioning system for medical equipment, comprising: a first medical equipment; a second medical equipment having a first position relationship with the first medical equipment; a position detection device for detecting the first position relationship between the first medical equipment and the second medical equipment; and a repositioning apparatus for moving the second medical equipment in a position relationship other than the first position relationship into the first position relationship, wherein the position detection device detects position by coming into contact with the first medical equipment and the second medical equipment.
Classes IPC ?
- A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
- A61G 13/02 - Tables d'opération réglablesLeurs commandes
- A61B 6/04 - Mise en position des patientsLits inclinables ou similaires
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17.
|
FOLDING STRUCTURE FOR TWO-WHEELED VEHICLE
| Numéro d'application |
KR2012002690 |
| Numéro de publication |
2013/151198 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2012-04-09 |
| Date de publication |
2013-10-10 |
| Propriétaire |
AICT (République de Corée)
|
| Inventeur(s) |
Bang, Young Bong
|
Abrégé
The present disclosure relates to a folding structure for two-wheeled vehicle, comprising: a front wheel; a rear wheel; a first connection rod connected to the front wheel; a second connection rod connected to the rear wheel; a first rotary shaft for rotating the first connection rod relative to the second connection rod; and a second rotary shaft for rotating the front wheel relative to the first connection rod, wherein a space is formed by means of the rotation of the first connection rod relative to the first rotary shaft and the rotation of the front wheel relative to the second rotary shaft so as to allow the first connection rod and the second connection rod to be placed between the front wheel and the rear wheel.
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