CN113240971B - Recognition device for teaching equipment - Google Patents
Recognition device for teaching equipment Download PDFInfo
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- CN113240971B CN113240971B CN202110370102.2A CN202110370102A CN113240971B CN 113240971 B CN113240971 B CN 113240971B CN 202110370102 A CN202110370102 A CN 202110370102A CN 113240971 B CN113240971 B CN 113240971B
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- identification device
- main body
- device main
- rotating shaft
- base
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
Abstract
The invention provides an identification device for teaching equipment, which comprises an identification device main body; the bottom of the identification device main body is provided with a plurality of contact units, and each contact unit comprises a selector and a plurality of induction contacts; the selector comprises a base rotating shaft and a plurality of pendulum shafts, the base rotating shaft is provided with a fixed magnetic field, the axis of the base rotating shaft is vertical to the bottom surface of the identification device main body, and the corresponding plurality of induction contacts are arranged in the circumferential direction by taking the base rotating shaft as the center; the root of any one of the swing shafts is fixedly arranged on the circumferential surface of the corresponding base rotating shaft, and the tail end of the swing shaft can be contacted with any one induction contact in the corresponding contact unit in the rotating process of the base rotating shaft; in one contact unit, any two of the swing shafts are in an electrical disconnection state or an electrical connection state. The identification device has the function of representing the model of the teaching equipment and has certain anti-counterfeiting capability.
Description
Technical Field
The invention relates to the field of teaching aids, in particular to an identification device for teaching equipment.
Background
Figure 1 shows a schematic structure diagram of teaching equipment, can place different teaching aids on this teaching equipment's the mesa for the show, this mesa is except having the supporting role, still has the function of supplying power to the teaching aid, because different teaching aids need different supply voltage, in order to guarantee the security, need develop reliable identification equipment and discern different teaching aids, in order to avoid producing the potential safety hazard because of the power supply mistake. At the same time, the identification device should also have a sufficiently secure anti-counterfeiting capability in view of the existence of counterfeit products on the market.
Disclosure of Invention
The invention provides an identification device for teaching equipment, which has the function of representing the model of the teaching equipment, has certain anti-counterfeiting capability and has good practicability.
Correspondingly, the invention also provides an identification device for the teaching equipment, which comprises an identification device main body;
the bottom of the identification device main body is provided with a plurality of contact units, and each contact unit comprises a selector and a plurality of induction contacts;
the plurality of induction contacts are arranged on the bottom surface of the identification device main body, the front surfaces of the plurality of induction contacts are exposed on the bottom surface of the identification device main body, the selector is arranged on one side of the back surface of the induction contacts, and the identification device main body is provided with a movable cavity at a position corresponding to the selector;
the selector comprises a base rotating shaft and a plurality of pendulum shafts, the base rotating shaft is provided with a fixed magnetic field, the axis of the base rotating shaft is perpendicular to the bottom surface of the identification device main body, and the corresponding plurality of induction contacts are arranged in the circumferential direction by taking the base rotating shaft as the center;
the root of any one of the swing shafts is fixedly arranged on the circumferential surface of the corresponding base rotating shaft, and the tail end of any one of the swing shafts can be contacted with any one of the induction contacts in the corresponding contact units in the rotating process of the base rotating shaft;
in one contact unit, any two of the plurality of swing shafts are in an electrical disconnection state or an electrical connection state.
In an optional embodiment, a metal roller is arranged at the tail end of any one of the balance staff.
In an alternative embodiment, the root of the base shaft is embedded in the identification device main body, and the base shaft is rotatably disposed on the identification device main body based on the root of the base shaft.
In an alternative embodiment, the root of the base shaft has a magnet whose axis is arranged radially of the base shaft.
In an alternative embodiment, the active chamber is filled with an inert gas.
In an optional embodiment, the magnetic field generator further comprises an outer magnetic ring, wherein a magnetic field is arranged in the outer magnetic ring;
the outer magnetic ring is arranged outside the identification device main body in a surrounding mode.
In an alternative embodiment, the outer magnetic ring includes a magnetic portion and a non-magnetic portion, and the magnetic portion and the non-magnetic portion are disposed at an interval in a circumferential direction.
In an optional embodiment, the main body of the outer magnetic ring is made of a metal material, and a plurality of magnetic particles are embedded in the main body of the outer magnetic ring.
In summary, the present invention provides an identification device for teaching equipment, which represents the state of a contact unit by using the electrical connection condition of contacts in the contact unit, and implements the function of representing data from a physical layer by using the combined representation data of the states of a plurality of contact units; the magnetic field and the selector are matched, so that the complexity of data decoding is increased, and the safety of the data decoding is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a circuit schematic structure of a conventional lamp;
FIG. 2 shows a bottom view of an identification device for a teach pendant of an embodiment of the present invention;
FIG. 3 shows a top view of an identification device for a teaching apparatus according to an embodiment of the present invention;
FIG. 4 shows a schematic side sectional view of an identification device for teaching apparatus according to an embodiment of the present invention;
fig. 5 shows a first structural schematic diagram of an identification device with an outer magnetic coil according to an embodiment of the invention;
fig. 6 shows a second structural schematic diagram of an identification device with an outer magnetic ring according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 2 shows a bottom view of an identification device for teaching equipment according to an embodiment of the present invention, fig. 3 shows a top view of the identification device for teaching equipment according to an embodiment of the present invention, and fig. 4 shows a side sectional view of the identification device for teaching equipment according to an embodiment of the present invention, wherein a part of the structure is not shown in the view for accurately expressing the structure of the identification device, and please understand in conjunction with the following description.
Specifically, the identification device for teaching equipment according to the embodiment of the present invention includes an identification device main body, specifically, the identification device main body refers to a main body structure for supporting in the identification device, and the specific structure of the identification device main body is changed according to the parts required to be arranged on the identification device main body structure.
Specifically, the appearance structure of the identification device main body is cylindrical, and the identification device main body adopting the cylindrical structure has the advantages that the installation direction of the identification device can be randomly set under the condition of reasonably setting the contact units, so that the identification device is convenient to install.
A plurality of contact units 451 are provided at the bottom of the recognition device body, each contact unit 451 including a selector 453 and a plurality of sensing contacts 452; to illustrate the extent of the contact unit 451, the contact unit 451 is shown in fig. 2 of the drawings as a box line.
The plurality of sensing contacts 452 are disposed on a bottom surface of the identification device main body, front surfaces of the plurality of sensing contacts 452 are exposed to the bottom surface of the identification device main body, and the selector 453 is disposed at a side of a rear surface of the sensing contacts 452. Referring to fig. 4, the identification device main body is provided with a movable chamber at a position corresponding to the selector 453, the movable chamber serving to move the selector 453.
The selector 453 includes a base shaft 454 and a plurality of yaw axes 455, the axis of the base shaft 454 is perpendicular to the bottom surface of the identification device body, and a plurality of corresponding sensing contacts 452 are arranged in the circumferential direction around the base shaft 454; specifically, one contact unit 451 according to the embodiment of the present invention includes four sensing contacts 452, and accordingly, the arrangement of the four sensing contacts 452 is distributed in a checkerboard pattern.
Specifically, the root of any one of the pendulum shafts 455 is fixedly disposed on the circumferential surface of the corresponding base spindle 453, and during the rotation of the base spindle 454, the end of any one of the pendulum shafts 455 can contact any one of the sensing contacts 452 in the corresponding contact unit 451; with reference to fig. 3 and fig. 4, by properly setting the length of the pendulum shaft 455, the end of the pendulum shaft 455 falls on the sensing contact 452 during the movement, and contacts and electrically connects with the sensing contact 452.
Specifically, in one contact unit 451, any two of the plurality of swing shafts 455 are electrically disconnected or connected. Specifically, during the rotation of the selector 453 about the axis of the base shaft 454, since the ends of the swing shafts 455 are capable of contacting the sensing contacts 452, different swing shafts 455 can be connected or disconnected through a predetermined circuit relationship, and accordingly, the electrical connection relationship between different sensing contacts 452 is relatively regular.
Specifically, in order to ensure that the electrical connection relationship between the internal sensing contacts 452 is relatively fixed under certain conditions in one contact unit 451, so as to facilitate external identification, the embodiment of the present invention uses a magnetic field control method to achieve position location control of the selector, and specifically, the base shaft 453 of the embodiment of the present invention has a fixed magnetic field. Under the precondition that the base rotating shaft 453 has a fixed magnetic field, when the applied magnetic field is constant and the position of the identification device is constant, each base rotating shaft 453 has a determined position, correspondingly, the swing shaft 455 connected with the base rotating shaft 453 has a relatively fixed position, correspondingly, different sensing contacts 452 have a relatively fixed electrical connection relationship, at the moment, for one contact unit, circuit on-off detection is performed on different sensing contacts in a two-by-two traversal mode, and the current circuit state of the contact unit can be obtained.
Specifically, in one contact unit of the embodiment of the present invention, there are four sensing contacts, and the four sensing contacts are respectively numbered as a sensing contact one, a sensing contact two, a sensing contact three, and a sensing contact four, and for the whole contact unit, the representation state of the contact unit is determined by the following electrical communication relationships of the sensing contacts:
a first sensing contact and a second sensing contact,
a first sensing contact and a third sensing contact,
a first sensing contact and a fourth sensing contact,
a second sensing contact and a third sensing contact,
a second sensing contact and a fourth sensing contact,
a third inductive contact and a fourth inductive contact,
the electrical connection relation of each group of induction contacts has an on state and an off state, correspondingly, the characterization states of the contact units in the embodiment of the invention have 64 kinds, namely one contact unit in the embodiment of the invention can represent a positive integer no more than 64, the identification device can be used for characterizing a data string by arranging a plurality of contact units and arranging an external magnetic field, meanwhile, the data string characterization of the identification device is determined by an external magnetic field, the identification device does not have a data recording function, the identification device has certain universality, meanwhile, the magnetic field measurement difficulty is large, the data string decoding difficulty is high, and the safety is good.
It should be noted that, because the magnetic field is difficult to measure and the fine control is difficult, for manufacturers, the data string can be set by first manufacturing and then measuring, the external magnetic field is set by an irregular rule, the data string is measured under the action of the fixed external magnetic field, and the data string is correspondingly recorded, so that the manufacturing and processing process can be simplified and relatively irregular data strings can be formed.
In addition, since only four sensing contacts are arranged in one contact unit of the embodiment of the invention, the number of the characterization states of the contact unit may not meet the use requirement, but in practical implementation, the number of the sensing contacts in the contact unit can be confirmed according to the practical requirement.
In an alternative embodiment, a metal roller 456 is disposed at the end of any one of the swing shafts 455, so that friction force generated when the selector rotates can be reduced, wear can be reduced, and the service life of the identification device can be prolonged.
In an alternative embodiment, the root of the base shaft 453 is embedded in the identification device body, and the base shaft 453 is rotatably disposed on the identification device body based on the root of the base shaft 453.
In an alternative embodiment, the root of the base rotation shaft has a magnet 457 whose axis is arranged in the radial direction of the base rotation shaft, and a stable magnetic field is generated by the magnet 457.
In an alternative embodiment, since the contact collision of the electrode is involved, in order to ensure the safety of the identification device, the movable cavity is optionally filled with inert gas, which can play a role of spark prevention and the like.
Fig. 5 shows a first structural diagram of an identification device with an outer magnetic ring according to an embodiment of the present invention, and fig. 6 shows a second structural diagram of an identification device with an outer magnetic ring according to an embodiment of the present invention, wherein the black filled regions represent magnets. In an alternative embodiment, the selector position may be determined by an applied magnetic field as described above, and therefore, when the identification device is specifically designed, the identification device may be preset with a magnetic field, specifically, the identification device further includes an external magnetic coil 460, and the external magnetic coil 460 has a magnetic field therein; the outer magnetic ring 460 is disposed around the exterior of the identification device body.
In an alternative embodiment, for a specific forming manner of the outer magnetic ring 460, the outer magnetic ring 460 includes a magnetic portion and a non-magnetic portion, and the magnetic portion and the non-magnetic portion are arranged at an interval along a circumferential direction. Specifically, the magnetic portion may be made of a material such as a magnet, and the non-magnetic portion may be made of any material.
In an alternative embodiment, for a specific forming manner of the outer magnetic ring 460, a main body of the outer magnetic ring is made of a metal material, and a plurality of magnetic particles are embedded in the main body of the outer magnetic ring.
The specific structures of the above two types of outer magnetic rings 460 both use a random fixed magnetic field generated by superimposing magnetic fields generated by a plurality of magnetic bodies to generate a selection action on a selector in the device body, and it is explained in the foregoing that the identification device can determine the magnetic field first and then derive data during production, therefore, for the manufacture of the identification device, when the identification device adopts the former structure, the magnetic fields generated by the outer magnetic rings are not repeated with a high probability when the designs related to the magnetic part and the non-magnetic part are not consistent; when the identification device adopts the latter structure and the embedding positions of a plurality of magnetic particles are inconsistent, the magnetic field generated by the outer magnetic ring is not repeated with high probability, so that the convenience of the production of the identification device can be ensured.
To sum up, the embodiment of the present invention provides an identification device for teaching equipment, which represents a state of a contact unit by using a contact electrical connection condition in the contact unit, and implements an effect of representing data from a physical layer by using combined representation data of states of a plurality of contact units; the magnetic field and the selector are matched, so that the complexity of data decoding is increased, and the safety of the data decoding is ensured.
The above detailed description is provided for the recognition device for teaching equipment provided by the embodiment of the present invention, and the principle and the embodiment of the present invention are explained by applying a specific example, and the above description of the embodiment is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (4)
1. An identification device for teaching equipment, comprising an identification device main body;
the bottom of the identification device main body is provided with a plurality of contact units, and each contact unit comprises a selector and a plurality of induction contacts;
the plurality of sensing contacts are arranged on the bottom surface of the identification device main body, the front surfaces of the plurality of sensing contacts are exposed on the bottom surface of the identification device main body, the selector is arranged on one side of the back surface of the sensing contacts, the identification device main body is provided with a movable cavity at a position corresponding to the selector, and the movable cavity is filled with inert gas;
the selector comprises a base rotating shaft and a plurality of pendulum shafts, the base rotating shaft is provided with a fixed magnetic field, the axis of the base rotating shaft is perpendicular to the bottom surface of the identification device main body, and the corresponding plurality of induction contacts are arranged in the circumferential direction by taking the base rotating shaft as the center;
the root of any one of the swing shafts is fixedly arranged on the circumferential surface of the corresponding base rotating shaft, and the tail end of any one of the swing shafts can be contacted with any one of the induction contacts in the corresponding contact units in the rotating process of the base rotating shaft;
in one contact unit, any two of the swing shafts are in an electrical disconnection state or an electrical connection state;
the identification device further comprises an outer magnetic ring, a magnetic field is arranged in the outer magnetic ring, the outer magnetic ring is arranged outside the identification device main body in a surrounding mode, the outer magnetic ring comprises a magnetic portion and a non-magnetic portion, the magnetic portion and the non-magnetic portion are arranged at intervals in the circumferential direction, the main body of the outer magnetic ring is made of metal materials, and a plurality of magnetic particles are embedded in the main body of the outer magnetic ring.
2. An identification device for teaching equipment according to claim 1 wherein a metal roller is provided at the tip of any one of the balance staff.
3. The recognition device for teaching equipment according to claim 1, wherein a root portion of the base rotation shaft is embedded in the recognition device main body, the base rotation shaft being rotatably provided on the recognition device main body based on the root portion of the base rotation shaft.
4. The recognition device for teaching equipment according to claim 1, wherein a root portion of the base rotation shaft has a magnet whose axis is disposed radially of the base rotation shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110370102.2A CN113240971B (en) | 2021-04-07 | 2021-04-07 | Recognition device for teaching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110370102.2A CN113240971B (en) | 2021-04-07 | 2021-04-07 | Recognition device for teaching equipment |
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| Publication Number | Publication Date |
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| CN113240971A CN113240971A (en) | 2021-08-10 |
| CN113240971B true CN113240971B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110370102.2A Active CN113240971B (en) | 2021-04-07 | 2021-04-07 | Recognition device for teaching equipment |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1197509A (en) * | 1996-05-24 | 1998-10-28 | 精工爱普生株式会社 | Position detector, encoder board, position detecting method, timer and electronic device |
| CN103914165A (en) * | 2013-01-05 | 2014-07-09 | 联想(北京)有限公司 | Multi-touch screen-based identifying method and device and electronic equipment |
| CN104794416A (en) * | 2015-03-23 | 2015-07-22 | 管恩平 | Recognition structure for automatically and electrically connecting more than two electronic devices |
| CN210183307U (en) * | 2019-05-30 | 2020-03-24 | 联想(北京)有限公司 | Touch assembly and electronic equipment |
| CN111697754A (en) * | 2020-06-03 | 2020-09-22 | 清华大学 | Touch display and terminal device |
| CN111915997A (en) * | 2020-08-19 | 2020-11-10 | 深圳市奥拓电子股份有限公司 | COB display module and LED display screen with touch function |
| CN212208255U (en) * | 2020-06-11 | 2020-12-22 | 深圳市翌境科技有限公司 | Contact module and object recognition equipment based on contact module |
-
2021
- 2021-04-07 CN CN202110370102.2A patent/CN113240971B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1197509A (en) * | 1996-05-24 | 1998-10-28 | 精工爱普生株式会社 | Position detector, encoder board, position detecting method, timer and electronic device |
| CN103914165A (en) * | 2013-01-05 | 2014-07-09 | 联想(北京)有限公司 | Multi-touch screen-based identifying method and device and electronic equipment |
| CN104794416A (en) * | 2015-03-23 | 2015-07-22 | 管恩平 | Recognition structure for automatically and electrically connecting more than two electronic devices |
| CN210183307U (en) * | 2019-05-30 | 2020-03-24 | 联想(北京)有限公司 | Touch assembly and electronic equipment |
| CN111697754A (en) * | 2020-06-03 | 2020-09-22 | 清华大学 | Touch display and terminal device |
| CN212208255U (en) * | 2020-06-11 | 2020-12-22 | 深圳市翌境科技有限公司 | Contact module and object recognition equipment based on contact module |
| CN111915997A (en) * | 2020-08-19 | 2020-11-10 | 深圳市奥拓电子股份有限公司 | COB display module and LED display screen with touch function |
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| CN113240971A (en) | 2021-08-10 |
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