CN107781610A - A kind of portable invigilation device - Google Patents
A kind of portable invigilation device Download PDFInfo
- Publication number
- CN107781610A CN107781610A CN201711338342.4A CN201711338342A CN107781610A CN 107781610 A CN107781610 A CN 107781610A CN 201711338342 A CN201711338342 A CN 201711338342A CN 107781610 A CN107781610 A CN 107781610A
- Authority
- CN
- China
- Prior art keywords
- mobility framework
- seat
- law
- support column
- elastic clamp
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/04—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or holding steady relative to, a person, e.g. by chains, e.g. rifle butt or pistol grip supports, supports attached to the chest or head
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The present invention relates to examination monitoring technology field, especially a kind of portable invigilation device, it includes law-enforcing recorder, stabilization seat and its control device, stabilization seat is assembled successively by base, mobility framework, elastic clamp seat and cover plate, rectangle chute is offered on base, the side of base is provided with shoulder, and shoulder folder or magnetic clasp or nylon adherent buckle were fitted with shoulder；The spacing that control device is used to regulate and control between four cell walls of rectangle chute and each side of mobility framework maintains dynamic stability；It is connected between elastic clamp seat and mobility framework by elastic component；The bottom of law-enforcing recorder is through the resigning hole on cover plate and on elastic clamp seat；The present invention is simple in construction, easy to wear, it ensure that the clarity and stability of invigilator personnel captured video during invigilator, and realize and invigilator's video information is spot-check and examined at any time, also fright effect is played to examinee, specification examination discipline significantly, it is therefore prevented that the generation of exam cheating event.
Description
Technical field
The present invention relates to examination monitoring technology field, especially a kind of portable invigilation device.
Background technology
Currently, it is fair, just in order to ensure taking an examination, typically in setting of examination hall camera and its supporting device, and aid in
Behavior dynamic of the invigilator personnel to examinee is monitored in real time, to prevent the generation of exam cheating event.However, because various regions pass through
Ji situation is uneven, configuration invigilation device of not had ready conditions in some examination halls, while there is also prison for single camera head monitor
Dead angle is controlled, the corrupt practice of this examinee just not rectified for some attitudes provides possible condition, also increased considerably invigilator
Invigilator's difficulty of personnel, a kind of portable invigilation device is provided for this, and the examination discipline to examination hall carries out specification and just seems outstanding
For necessity.
The content of the invention
Present invention aim to solve some current examination halls to be configured without invigilation device, and configure examining for invigilation device
There is monitoring dead angle in field, this provides possible condition for the corrupt practice of examinee, and increases invigilator's difficulty of invigilator personnel again
The problem of, a kind of portable invigilation device is provided for this.
The present invention concrete scheme be：A kind of portable invigilation device, it is characterized in that：Including law-enforcing recorder, stabilization seat
And its control device, stabilization seat are assembled, offered on base successively by base, mobility framework, elastic clamp seat and cover plate
The rectangle chute to match with mobility framework, the side of base are provided with shoulder, and be fitted with shoulder shoulder folder or magnetic clasp or
Nylon adherent buckle；The groove A for installing electromagnet is offered on four cell walls of rectangle chute, in four outsides of mobility framework
The groove B for installing magnetic inductive block is offered on side, four blocks of electromagnet are with four pieces of magnetic inductive blocks in positioned opposite one by one；Elastic clamp seat
It is connected between mobility framework by elastic component；The bottom of law-enforcing recorder is through the resigning hole on cover plate and is arranged on bullet
On property deck；Control device includes electric supply installation, PLC, for detecting each side of mobility framework and rectangle chute
The range sensor of spacing and the Hall element for detecting the present power-up electric current of every block of electromagnet, are enforcing the law between corresponding cell wall
When recorder occurred level shifts, PLC passes through according to the detection information of range sensor and Hall element Real-time Feedback
Pwm unit is adjusted to the electric current being delivered on every block of electromagnet immediately, to control law-enforcing recorder with respect to stabilization seat
Dynamic stability in the horizontal direction.
The bottom land of heretofore described rectangle chute is provided with the ball grooves corresponding with the corner of mobility framework, and each
Ball is correspondingly equipped with ball grooves.
Heretofore described elastic clamp seat has pedestal, clamp is correspondingly provided with the arranged on left and right sides of pedestal, in each clamp
End be respectively arranged with elastic roller, elastic cushion block is provided with the upper surface of pedestal, the bottom of pedestal is set to globoidal structure, and
The globoidal structure of the bottom of pedestal is sunk down into mobility framework in assembling.
Heretofore described elastic component includes being arranged at four support column a of mobility framework side and is arranged at elastic clamp seat
Four support column b of side, and support column a and support column b are in horizontally disposed, are passed through between each support column a and support column b
Viscoplasticity component is connected.
The present invention is simple in construction, easy to wear, and transversely stabilization control is carried out to law-enforcing recorder with longitudinal direction by stabilization seat
System, it is ensured that the clarity and stability of invigilator's personnel's captured video during invigilator, and realize at any time to invigilating video
Information is spot-check and examined, and fright effect, significantly specification examination discipline is also played to examinee, it is therefore prevented that exam cheating event
Generation.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention；
Fig. 2 is the configuration schematic diagram of the present invention；
Fig. 3 is the overlooking the structure diagram of stabilization seat in the present invention；
Fig. 4 is the overlooking the structure diagram of center base of the present invention；
Fig. 5 is the control structure frame that stabilization seat carries out stabilization control to the camera lens of law-enforcing recorder in the horizontal direction in the present invention
Figure；
Fig. 6 is mobility framework and the mounting structure schematic diagram of elastic clamp seat in the present invention；
Fig. 7 is the structural representation that stabilization seat is controlled the stabilization of the camera lens in the vertical direction of law-enforcing recorder in the present invention.
In figure：1-law-enforcing recorder, 2-base, 3-mobility framework, 4-elastic clamp seat, 5-cover plate, 6-rectangle are slided
Groove, 7-shoulder, 8-shoulder excessively press from both sides, 9-magnetic clasp, 10-nylon adherent buckle, 11-electromagnet, 12-groove A, 13-magnetic inductive block,
14-groove B, 15-resigning hole, 16-ball grooves, 17-ball, 18-pedestal, 19-clamp, 20-elastic roller, 21-
Elastic cushion block, 22-globoidal structure, 23-support column a, 24-support column b, 25-viscoplasticity component, 26-index a, 27-refer to
Mark b.
Embodiment
Referring to Fig. 1-6, a kind of portable invigilation device, including law-enforcing recorder 1, stabilization seat and its control device, stabilization
Seat is assembled successively by base 2, mobility framework 3, elastic clamp seat 4 and cover plate 5, is offered on base 2 and the phase of mobility framework 3
The rectangle chute 6 of matching, the side of base 2 are provided with shoulder 7, and the shoulder excessively for invigilating personnel's wearing is fitted with shoulder 7
Folder 8 or magnetic clasp 9 or nylon adherent buckle 10；The groove A12 for installing electromagnet 11 is offered on four cell walls of rectangle chute 6,
Wherein electromagnet 11 is successively labeled as electromagnet a, electromagnet b, electromagnet c, electromagnet d;In four outer side edges of mobility framework
On offer groove B14 for installing magnetic inductive block 13, four blocks of electromagnet are with four pieces of magnetic inductive blocks in positioned opposite one by one；Elastic card
It is connected between seat 4 and mobility framework 3 by elastic component；The bottom of law-enforcing recorder 1 through the resigning hole 15 on cover plate 5 simultaneously
On elastic clamp seat 4；Control device include electric supply installation, PLC, for detect 3 each side of mobility framework with
The range sensor of spacing and the Hall for detecting the present power-up electric current of every block of electromagnet between the corresponding cell wall of rectangle chute 6
Element, wherein electric supply installation are made up of rechargeable battery and voltage stabilizing isolation module, and range sensor is provided with two, and is arranged on square
On two adjacent vertical cell walls of shape chute 6, and range sensor A1 and range sensor A2, Hall element are labeled as successively
Provided with two groups, and successively labeled as Hall element a1, Hall element a2 and Hall element b1, Hall element b2.
The stabilization control principle that stabilization seat is carried out in horizontal direction to the camera lens of law-enforcing recorder 1 is as follows：
Due to it is desirable that control targe be：Shaken in the horizontal direction regardless of base 2, control mobility framework 3 will not
Shake therewith, i.e., the gap between mobility framework 3 and rectangle chute 6 can keep dynamic stability all the time.
In control, electromagnet a and electromagnet b in lateral arrangement are gathered respectively by using Hall element a1, a2
Electrical current size, and gathered in real time by range sensor A1 between the transverse direction between mobility framework 3 and rectangle chute 6
Gap；Similarly, gathered respectively in the electromagnet c being longitudinally arranged and electromagnet d electrical current by using Hall element b1, b2
Size, and the axial clearance between mobility framework 3 and rectangle chute 6 is gathered by range sensor A2 in real time.
The PLC is by using pid algorithm, the electric current number collected according to each Hall element of real-time reception
According to the lateral clearance returned with range sensor Real-time Feedback/axial clearance data, each pwm unit is adjusted in real time（Arteries and veins
Wide modulating unit is labeled as pwm unit a, pwm unit b, pwm unit c and pwm unit d successively,
Each pwm unit is corresponding to be connected with an electromagnet）The switching frequency of middle switching device, with to corresponding each electricity
The electrical current of magnet is adjusted immediately, so as to which magnetic force caused by electromagnet sensing occurs correspondingly to change, is arranged on movement
Four magnetic inductive blocks on framework 3 drive mobility framework 3 to make corresponding operation in the presence of magnetic force, and then maintain movable frame
The dynamic stability of frame 3 in the horizontal direction.
The bottom land of rectangle chute described in the present embodiment 6 is provided with the ball grooves 16 corresponding with the corner of mobility framework 3, and
Ball 17 is correspondingly equipped with each ball grooves 16, so that when base 2 is vibrating in the presence of external force, movable frame
Frame 3 can make horizontal slip relative to base 2, and when performing relative motion, both are connected in a manner of sliding friction, so both
Stability of the mobility framework 3 in movement is further ensure that, reduces frictional dissipation again.
Elastic clamp seat 4 described in the present embodiment has pedestal 18, and clamp 19 is correspondingly provided with the arranged on left and right sides of pedestal 18,
Elastic roller 20 is respectively arranged with the end of each clamp 19, elastic cushion block 21 is provided with the upper surface of pedestal 18, pedestal 18
Bottom is set to globoidal structure 22, and the globoidal structure 22 of the bottom of pedestal 18 is sunk down into mobility framework 3 in assembling, so as to
So that in the decentralization of pedestal 18 to mobility framework 3, it is ensured that stability of the elastic clamp seat 4 on mounting structure.
Elastic component described in the present embodiment includes being arranged at four support column a23 of mobility framework side and is arranged at elasticity
Four support column b24 of deck side, and support column a23 and support column b24 are in horizontally disposed, are provided with support column a23
Index a26, support column b24 are provided with index b27, are connected between each support column a and support column b by viscoplasticity component 25
Connect.
The stabilization control principle that stabilization seat is carried out on vertical direction to the camera lens of law-enforcing recorder 1 is as follows：
Referring to Fig. 7, when the in the vertical direction of law-enforcing recorder 1 is not shaken, elastic clamp seat 4 is set（Law enforcement is installed
Recorder 1）Center of gravity be located on axis A1, wherein elastic clamp seat 4 designs for axial symmetry, and center of gravity is located at its geometric center；
When the in the vertical direction of law-enforcing recorder 1 is shaken, equivalent to law-enforcing recorder 1 by the effect on vertical direction
Power, the active force is set as directed force F straight down（Or direction straight up）, now the center of gravity of elastic clamp seat 4 put down
Row is displaced downwardly on axis A2, and each viscoplasticity component is constructed so that resilient force is in elastic clamp seat caused by difference
Balance is obtained with the torque of the power of the center of gravity around elastic clamp seat, wherein when index a26 and indicateing arm b27 is transformed into by face arrangement
During dislocation arrangement, you can judge the gravity motion situation of elastic clamp seat 4；
From the foregoing, it will be observed that when law-enforcing recorder 1 is shaken under external force, viscoplasticity component 25 makes its in the vertical direction begin
It is in eventually among dynamic equilibrium, and viscoplasticity component 25 can play the effect of vibration decay to the vibration of law-enforcing recorder 1,
The vibration frequency of law-enforcing recorder 1 is higher simultaneously, and attenuation is bigger, ensures that invigilator personnel are captured during invigilator
The clarity and stability of video.
Claims (4)
1. a kind of portable invigilation device, it is characterized in that：Including law-enforcing recorder, stabilization seat and its control device, stabilization seat by
Base, mobility framework, elastic clamp seat and cover plate are assembled successively, and the rectangle to match with mobility framework is offered on base
Chute, the side of base are provided with shoulder, and shoulder folder or magnetic clasp or nylon adherent buckle were fitted with shoulder；Four of rectangle chute
The groove A for installing electromagnet is offered on cell wall, is offered in four outer side edges of mobility framework for installing magnetic conduction
The groove B of block, four blocks of electromagnet are with four pieces of magnetic inductive blocks in positioned opposite one by one；Pass through elasticity between elastic clamp seat and mobility framework
Component is connected；The bottom of law-enforcing recorder is through the resigning hole on cover plate and on elastic clamp seat；Control device includes
Electric supply installation, PLC, the distance for detecting spacing between the cell wall corresponding to rectangle chute of each side of mobility framework
Sensor and the Hall element for detecting the present power-up electric current of every block of electromagnet, when law-enforcing recorder occurred level shifts,
PLC is according to the detection information of range sensor and Hall element Real-time Feedback, by pwm unit immediately to defeated
The electric current delivered on every block of electromagnet is adjusted, to control the dynamic of law-enforcing recorder with respect to stabilization seat in the horizontal direction steady
It is fixed.
2. a kind of portable invigilation device according to claim 1, it is characterized in that：The bottom land of the rectangle chute be provided with
The corresponding ball grooves in the corner of mobility framework, and it is correspondingly equipped with ball in each ball grooves.
3. a kind of portable invigilation device according to claim 1, it is characterized in that：The elastic clamp seat has pedestal,
The arranged on left and right sides of pedestal is correspondingly provided with clamp, is respectively arranged with elastic roller in the end of each clamp, is set on the upper surface of pedestal
Flexible cushion block, the bottom of pedestal is set to globoidal structure, and the globoidal structure of the bottom of pedestal sinks down into movement in assembling
In framework.
4. a kind of portable invigilation device according to claim 1 or 3, it is characterized in that：The elastic component includes setting
In mobility framework side four support column a and be arranged at four support column b of elastic clamp seat side, and support column a and support column b
It is in horizontally disposed, is connected between each support column a and support column b by viscoplasticity component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338342.4A CN107781610B (en) | 2017-12-14 | 2017-12-14 | Portable invigilator's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338342.4A CN107781610B (en) | 2017-12-14 | 2017-12-14 | Portable invigilator's device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107781610A true CN107781610A (en) | 2018-03-09 |
| CN107781610B CN107781610B (en) | 2023-07-18 |
Family
ID=61437180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711338342.4A Active CN107781610B (en) | 2017-12-14 | 2017-12-14 | Portable invigilator's device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107781610B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149175A (en) * | 1994-09-20 | 1997-05-07 | 松下电器产业株式会社 | Objective actuator and manufacturing method thereof |
| JPH10243280A (en) * | 1997-02-28 | 1998-09-11 | Rhythm Watch Co Ltd | Solid-state image-pickup device camera |
| CN102466942A (en) * | 2010-11-03 | 2012-05-23 | 三星电机株式会社 | Image photographing device having function for compensation hand vibration |
| CN202353664U (en) * | 2011-12-06 | 2012-07-25 | 中国钓具技术标准化(北仑海伯)研究中心 | Mounting structure for camera |
| CN203548453U (en) * | 2013-11-26 | 2014-04-16 | 吴贵 | Multifunctional sucking disc elastic clamp |
| JP2015197627A (en) * | 2014-04-02 | 2015-11-09 | 厦▲門▼新▲鴻▼洲精密科技有限公司Ｘｉｎｈｏｎｇｚｈｏｕ Ｐｒｅｃｉｓｉｏｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ，．Ｌｔｄ | camera module |
-
2017
- 2017-12-14 CN CN201711338342.4A patent/CN107781610B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149175A (en) * | 1994-09-20 | 1997-05-07 | 松下电器产业株式会社 | Objective actuator and manufacturing method thereof |
| JPH10243280A (en) * | 1997-02-28 | 1998-09-11 | Rhythm Watch Co Ltd | Solid-state image-pickup device camera |
| CN102466942A (en) * | 2010-11-03 | 2012-05-23 | 三星电机株式会社 | Image photographing device having function for compensation hand vibration |
| CN202353664U (en) * | 2011-12-06 | 2012-07-25 | 中国钓具技术标准化(北仑海伯)研究中心 | Mounting structure for camera |
| CN203548453U (en) * | 2013-11-26 | 2014-04-16 | 吴贵 | Multifunctional sucking disc elastic clamp |
| JP2015197627A (en) * | 2014-04-02 | 2015-11-09 | 厦▲門▼新▲鴻▼洲精密科技有限公司Ｘｉｎｈｏｎｇｚｈｏｕ Ｐｒｅｃｉｓｉｏｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ，．Ｌｔｄ | camera module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107781610B (en) | 2023-07-18 |
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