CN114060669A - A mark recognition device for food safety control - Google Patents
A mark recognition device for food safety control Download PDFInfo
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- CN114060669A CN114060669A CN202111478891.8A CN202111478891A CN114060669A CN 114060669 A CN114060669 A CN 114060669A CN 202111478891 A CN202111478891 A CN 202111478891A CN 114060669 A CN114060669 A CN 114060669A
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- camera
- pressing plate
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- 238000003825 pressing Methods 0.000 claims abstract description 45
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000004308 accommodation Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007142 ring opening reaction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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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
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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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
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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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
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a mark recognition device for food safety monitoring, which comprises a box body, wherein the top of the box body is provided with an opening, a bracket is rotatably arranged at the opening, a connecting block is arranged on the bracket, the connecting block is sleeved outside the bracket, and a camera is embedded in the connecting block; the top of the box body is provided with a pressing plate which rotates in the same direction as the support, and the bottom end of the pressing plate is provided with a pull rope; the camera has the condition that a state and user face aim at pivoted in-process, can scan user face, thereby accomplish the mark discernment, and can drive the support clockwise rotation when the tooth frame moves left, thereby it is inside to drive the camera clockwise rotation on the support and enter into the box, and then protect the camera, this device simple structure, make the camera carry out the mark discernment at the pivoted in-process, accommodation is wide, can discern according to the people of different heights.
Description
Technical Field
The invention relates to the technical field of mark identification, in particular to a mark identification device for food safety monitoring.
Background
Face recognition is a biometric technology that performs identification based on facial feature information of a person; the face recognition uses a camera or a video camera to collect images or video streams containing faces, automatically detects and tracks the faces in the images, and further performs a series of related application operations on the detected face images. The technology comprises image acquisition, feature positioning, identity confirmation and search and the like.
Chinese patent CN110809075A discloses a detachable portable face recognition and RFID recognition device for mobile phone, comprising a first clamping device, a second clamping device, a slider, a rain shielding plate and heat dissipation holes, the practicability of the device is improved by an LED lamp arranged outside the RFID recognizer, the purpose of respectively extruding the top end of the mobile phone shell and the bottom end outside the mobile phone is realized by arranging the first clamping device and the second clamping device, thereby realizing the position fixation of a fixed block on the mobile phone shell, further realizing the position fixation of a mounting plate on the rear surface of the mobile phone shell, facilitating the use of equipment by a user in rainy weather, preventing rainwater from entering the interior of the box body through the heat dissipation holes, realizing the height adjustment of the placing plate by adjusting the slider to slide on a slide rail, further realizing the height adjustment of the camera, thereby satisfying the different height demands of the camera under different conditions.
However, although the relevant parts of the face recognition can be raised and lowered to adapt to people with different heights in the using process of the device, the device needs to be adjusted before being used every time, so that the face recognition part is at a specific height, the height of the recognition part cannot be adjusted in real time to adapt to different people in the using process, frequent height adjustment in the using process is inevitable, and the use is not convenient enough.
Therefore, it is necessary to provide a mark recognition device for food safety monitoring to solve the above technical problems.
Disclosure of Invention
The present invention is directed to a mark recognition device for food safety monitoring, which solves the above-mentioned problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a mark recognition device for food safety monitoring comprises a box body, wherein an opening is formed in the top of the box body, a support is rotatably arranged at the opening, a connecting block is arranged on the support, the connecting block is sleeved on the outer side of the support, and a camera is embedded in the connecting block;
the top of the box body is provided with a pressing plate which rotates in the same direction as the support, the bottom end of the pressing plate is provided with a pull rope, the pull rope passes through the through groove on the shaft and is wound on the outer side of the shaft, and the tail end of the pull rope extends downwards to be fixed with a supporting plate on the inner part of the box body;
the support bottom is provided with incomplete ring gear, the inside bottom of box is provided with the tooth frame with incomplete gear engaged with, be provided with the cross axle on the incomplete gear, the cross axle with all with the power supply synchro-driven setting around the axle.
During specific use, can drive the tooth frame through the meshing of the internal gear of incomplete gear and the inside top of tooth frame and bottom mutually and slide about the box is inside, when the tooth frame slides right, can drive support anticlockwise rotation through the meshing of outer transmission tooth and incomplete ring gear, thereby it rotates to the box outside to drive the camera on the connecting block, the camera has the condition that a state and user's face aimed at the pivoted in-process, can scan user's face, thereby accomplish the mark discernment, and can drive support clockwise rotation when tooth frame removes left, thereby it is inside to drive the camera clockwise rotation on the support and enter into the box, and then protect the camera.
As a further scheme of the invention, the power source is a motor, the output end of the motor is provided with a transmission shaft, the transverse shaft and the outer side of the shaft are fixedly connected with belt wheels, and the outer side of each belt wheel is sleeved with a belt.
When specifically using, drive the transmission shaft through the motor output and rotate, transmission shaft accessible belt can drive and rotate around axle and cross axle, and the cross axle rotates and to drive incomplete gear revolve, and then drives the tooth frame and slide about the box is inside, and because the stay cord passes and to wear the groove around the epaxial for can loosen the stay cord around the rotation of axle, can drive the clamp plate upwards to rotate through the effect of spring, be favorable to making preparation for the location of later stage support.
As a further scheme of the invention, a round shaft is arranged on the inner side of the support, a support plate is fixedly connected between the round shaft and the support, baffles are fixedly connected to the top of the box body at the front side and the rear side of the support, two ends of the round shaft are rotatably connected with the baffles through bearings, and the support is in a regular polygon shape.
As a further scheme of the invention, the top of the gear frame is provided with an external transmission gear meshed with the incomplete gear ring, the top and the bottom of the interior of the gear frame are both provided with internal transmission gears, and the incomplete gear is meshed with the internal transmission gears.
During specific use, the incomplete gear is meshed with the internal transmission gear at the top end and the bottom end inside the gear frame to drive the gear frame to slide left and right inside the box body.
As a further scheme of the invention, sleeves are fixedly connected to the front side wall and the rear side wall inside the box body, springs are arranged in the sleeves, and the springs extend upwards to the bottom of the pressing plate and are in contact with the bottom surface of the pressing plate.
When the pressing plate is used specifically, the spring is favorable for improving the rotating stability of the pressing plate and driving the pressing plate to rotate upwards.
As a further scheme of the invention, a first guide box is fixedly connected to one side of the box body, a second guide box is fixedly connected to the other side of the box body, sliding plates are slidably connected to the interiors of the first guide box and the second guide box, the sliding plates are hermetically connected with the first guide box and the second guide box, and a connecting rod is fixedly connected between the gear frame and the sliding plates.
When the gear frame is used in a specific mode, the first guide box and the second guide box are beneficial to keeping the stability of the movement of the gear frame and providing support for the gear frame.
As a further scheme of the invention, a first infrared sensor is arranged on one side of the box body close to the second guide box, and a second infrared sensor is arranged on one side of the bottom of the pressing plate.
When the device is used specifically, the first infrared sensor senses the position of a user and starts the motor to drive the pressing plate to rotate upwards through the controller, the user is far away from the device, the pressing plate leaves from the head of the user after rotating by a small angle, the analog signal is transmitted to the controller through the second infrared sensor, the operation of the motor is stopped through the controller, the support drives the camera to rotate by a small angle and then just align with the face of the user, mark identification is facilitated, when the user is near to the device, the pressing plate leaves from the head of the user after rotating by a large angle, the motor is stopped through the controller, the support drives the camera to rotate by a large angle and also can align with the face of the user, so that stable mark identification is facilitated, and in addition, automatic identification can be carried out according to different heights of the users through the device, when user's height is higher, the clamp plate need rotate great angle and just can follow its head and leave, and because second infrared sensor is longer with user contact time, it is longer to lead to motor operation duration, can drive the camera through the support and rotate great angle, be favorable to with user's face alignment, and when user's height is shorter, the infrared ray that second infrared sensor sent just leaves on one's body from the user very fast, second infrared sensor passes through controller stop motor operation this moment, lead to the support to drive the camera and rotate less angle, just in time with user's face alignment, be favorable to keeping the accuracy of mark discernment.
As a further scheme of the invention, a controller is arranged in the box body, the controller is a single chip microcomputer or a PLC, the first infrared sensor and the second infrared sensor are both connected with the single chip microcomputer through electric wires, and the single chip microcomputer is connected with the motor through electric wires, so that the motor can be controlled through the single chip microcomputer.
When the motor is used specifically, the controller is favorable for controlling the motor.
The working principle is as follows: when a user is positioned at the front side of the device, the first infrared sensor can sense the position of the user, and then signals are transmitted to the controller, the controller is utilized to control the motor, thereby starting the motor, the motor drives the transmission shaft to rotate, thereby driving the camera to rotate towards the outer side of the box body through the meshing of the gear frame and the incomplete gear ring, in the actual installation process, the stay cord passes through the through groove on the shaft and is wound behind the shaft, the free end of the stay cord extends downwards to be fixed with the supporting plate after being wound for a plurality of circles, therefore, after the stay cord is loosened by rotating the shaft, the acting force of the spring can drive the pressing plate to move upwards, the pressing plate can drive the second infrared sensor on the bottom surface of the pressing plate to rotate upwards, when the second infrared sensor rotates upwards to a certain angle, the second infrared sensor can leave from the head of the user, and the camera on the connecting block is just aligned with the head of the user, by utilizing the structure, when the user is far away from the equipment, the second infrared sensor can leave the head of the user after the pressing plate rotates upwards by a small angle, and when the user is near to the equipment, the pressing plate rotates by a large angle, and then the second infrared sensor leaves the head of the user, by utilizing the structure, when the user is far away from the equipment, the first infrared sensor senses the position of the user and drives the pressing plate to rotate upwards through the controller starting motor, because the user is far away from the equipment, the pressing plate leaves from the head of the user after rotating by a small angle, at the moment, the analog signal is transmitted to the controller through the second infrared sensor, the operation of the motor is stopped through the controller, and at the moment, the bracket drives the camera to rotate by a small angle and just align with the face of the user, which is beneficial to mark identification, and when the user is near to the equipment, the pressing plate rotates away from the head of the user after a large angle, the motor is stopped through the controller, the support drives the camera to rotate by a large angle at the moment, and the camera can be aligned with the face of the user so as to be beneficial to stable marking and identification.
The mark recognition device for food safety monitoring can drive the gear frame to slide left and right in the box body through the meshing of the incomplete gear and the inner transmission gear at the top end and the bottom end in the gear frame, when the gear frame slides right, the support can be driven to rotate anticlockwise through the meshing of the outer transmission gear and the incomplete gear ring, so as to drive the camera on the connecting block to rotate to the outer side of the box body, the camera has a condition of aligning with the face of a user in the rotating process, the face of the user can be scanned, so that mark recognition is completed, when the gear frame moves left, the support can be driven to rotate clockwise, so as to drive the camera on the support to rotate clockwise and enter the box body, so as to protect the camera, the device has a simple structure, so that the camera can carry out mark recognition in the rotating process, the application range is wide, can be identified according to people with different heights.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic view of the construction of the gear frame and partial gear of the present invention;
FIG. 4 is a schematic view of the construction of the pressure plate and spring of the present invention;
FIG. 5 is a schematic view of a partial ring gear configuration of the present invention;
FIG. 6 is a right side view of the present invention;
FIG. 7 is a front view of the present invention;
FIG. 8 is a schematic view of the connector block and bracket configuration of the present invention;
FIG. 9 is an enlarged view of portion A of FIG. 3 in accordance with the present invention;
FIG. 10 is an enlarged view of the portion B of FIG. 4 according to the present invention;
fig. 11 is a schematic view of a vent structure of the present invention.
In the figure: 1. a first guide box; 2. a box body; 3. a support; 4. a baffle plate; 5. pressing a plate; 6. a spring; 7. pulling a rope; 8. A belt; 9. a drive shaft; 10. a motor; 11. connecting blocks; 12. a first infrared sensor; 13. a flow guide pipe; 14. a one-way valve; 15. a second guide box; 16. a shaft; 17. an outer drive tooth; 18. an incomplete gear ring; 19. a sleeve; 20. a connecting rod; 21. a slide plate; 22. a horizontal axis; 23. an incomplete gear; 24. an inner gear; 25. a toothed frame; 26. a circular shaft; 27. A support plate; 28. penetrating a groove; 29. a camera; 30. a second infrared sensor; 31. and (4) exhausting holes.
Detailed Description
As shown in fig. 1-8, a mark recognition device for food safety monitoring, including box 2, the top of box 2 is rotated and is provided with support 3, the top surface of box 2 is provided with the notch with support 3 looks adaptation, make support 3 can rotate, be provided with circle axle 26 in the inboard of support 3, fixedly connected with extension board 27 between circle axle 26 and the support 3, box 2 top is located equal fixedly connected with baffle 4 in both sides around support 3, circle axle 26 both ends are all rotated with baffle 4 through the bearing and are connected, support 3 sets up to regular polygon, preferably, adopt regular hexagon, support 3 sets up to the ring-opening, set up a connecting block 11 on its ring-opening, it is fixed with support 3 with connecting block 11 through the welding, arrange camera 29 that has mark recognition function on connecting block 11.
During the use, can drive connecting block 11 when branch rotates at box 2 top and rotate, and then drive camera 29 on the connecting block 11 and rotate, camera 29 revolves around circle axle 26, and it is aligned with user's face to have a state at least to carry out mark discernment through camera 29, rotate support 3 after the use is accomplished and drive camera 29 and rotate to box 2 inside downwards, thereby protect camera 29.
As shown in fig. 1, 2, 9, 10 and 11, the outer side of the bracket 3 is provided with a groove, the groove is equipped with the incomplete gear ring 18, the inner part of the box body 2 is provided with a gear frame 25 at the bottom end of the incomplete gear ring 18, the top of the gear frame 25 is provided with an outer transmission gear 17 meshed with the incomplete gear ring 18, the inner top and the bottom of the gear frame 25 are both provided with inner transmission gears 24, and the inner part of the gear frame 25 is provided with an incomplete gear 23 meshed with the inner transmission gears 24.
Furthermore, one side of the box body 2 is fixedly connected with a first guide box 1, the other side of the box body 2 is fixedly connected with a second guide box 15, the insides of the first guide box 1 and the second guide box 15 are both connected with a sliding plate 21 in a sliding way, the sliding plate 21 is connected with the first guide box 1 and the second guide box 15 in a sealing way, a connecting rod 20 is fixedly connected between the gear frame 25 and the sliding plate 21, a cavity is arranged at one side of the interior of the box body 2 close to the second guide box 15, an air vent 31 for air flow to pass through is arranged at one side of the opening of the box body 2 close to the cavity, a flow guide pipe 13 is communicated between one side of the top of the second flow guide box far away from the box body 2 and the cavity in the box body 2, the gas in the second flow guide box 15 can be conveyed to the cavity through the flow guide pipe 13, and is discharged through the discharge hole 31, and the second guide box 15 is provided at one side with a check valve 14 so that the external air is unidirectionally introduced into the inside of the second guide box 15.
When the device is used, the incomplete gear 23 is meshed with the internal transmission gear 24 at the top end and the bottom end inside the gear frame 25 to drive the gear frame 25 to slide left and right inside the box body 2, when the gear frame 25 slides right, the bracket 3 can be driven to rotate anticlockwise through the meshing of the external transmission gear 17 and the incomplete gear ring 18, so as to drive the camera 29 on the connecting block 11 to rotate to the outer side of the box body 2, the camera 29 has a state aligned with the face of a user in the rotating process, the face of the user can be scanned, mark identification is completed, when the gear frame 25 moves left, the bracket 3 can be driven to rotate clockwise, so as to drive the camera 29 on the bracket 3 to rotate clockwise and enter the box body 2, so as to protect the camera 29, and when the gear frame 25 slides right, the sliding plate 21 can be driven to move right inside the second guide box 15 through the connecting rod 20, and then to inside the air extrusion to the honeycomb duct 13 that is located slide 21 right side of second direction box 15 inside, then carry to the cavity inside the box 2 through honeycomb duct 13 inside, and then discharge through exhaust hole 31, and the support 3 is driving camera 29 to the box 2 outside rotation this moment, therefore, gaseous through exhaust hole 31 discharge can clear up the camera 29 of process, utilize outside exhaust air current can be with camera 29 dust clean up on the surface, avoid using camera 29 surface to pile up more dust for a long time, influence mark discernment, through being provided with check valve 14, when slide 21 slides left, can inhale inside second direction box 15 with the air in the external environment, be favorable to when the backplate slides right the extrusion to honeycomb duct 13 inside.
As shown in fig. 1-5 and 9, a pressing plate 5 is hinged to the top of the box body 2, a pull rope 7 is arranged at the bottom end of the pressing plate 5, a shaft 16 is arranged on each of two sides of the support 3 inside the box body 2, a through groove 28 for the pull rope 7 to pass through is arranged on the shaft 16, the pull rope 7 passes through the through groove 28 on the shaft 16 and extends downwards to be fixed with a supporting plate fixed on the inner wall of the box body 2, one end of the shaft 16 extends to the outside of the box body 2 and is rotatably connected with the box body 2 through a bearing, a transverse shaft 22 is arranged on the incomplete gear 23, the transverse shaft 22 passes through the incomplete gear 23 and extends to two sides of the box body 2, a motor 10 is arranged on the outside of the box body 2, a transmission shaft 9 is fixedly connected to the output end of the motor 10, belt pulleys are fixedly connected to the outsides of the transmission shaft 9, the transverse shaft 22 and the shaft 16, and a belt 8 is sleeved on the outer side of the belt pulley.
Further, sleeves 19 are fixedly connected to the front side wall and the rear side wall inside the box body 2, springs 6 are arranged in the sleeves 19, and the springs 6 extend upwards to the bottom of the pressing plate 5 and are in contact with the bottom surface of the pressing plate 5.
During the use, drive transmission shaft 9 through motor 10 output and rotate, transmission shaft 9 accessible belt 8 can drive and rotate around axle 16 and cross axle 22, and cross axle 22 rotates and can drive incomplete gear 23 and rotate, and then drives the tooth frame 25 and slide about inside box 2, and because stay cord 7 passes wear groove 28 on the axle 16 for rotate around the axle 16 and can loosen stay cord 7, can drive clamp plate 5 through the effect of spring 6 and upwards rotate, be favorable to making preparation for the location of later stage support 3.
Further, be provided with first infrared sensor 12 on box 2 is close to second direction box 15 one side, and be provided with second infrared sensor 30 on clamp plate 5 bottom one side, be provided with the controller in box 2 inside, the controller can be singlechip or PLC, select the singlechip here to control, during the installation, be connected first infrared sensor 12 and second infrared sensor 30 through the electric wire with the singlechip, thereby realize the transmission of data, and be connected through the electric wire between singlechip and the motor 10 equally, make and to control motor 10 through the singlechip.
When a user is positioned at the front side of the device, the first infrared sensor 12 can sense the position of the user, and then signals are transmitted to the controller, the controller is used for controlling the motor 10, so that the motor 10 is started, the motor 10 drives the transmission shaft 9 to rotate, so that the camera 29 is driven to rotate towards the outer side of the box body 2 through the meshing of the gear frame 25 and the incomplete gear ring 18, in the actual installation process, the pull rope 7 passes through the through groove 28 on the shaft 16 and is wound around the shaft 16, after a plurality of turns of winding, the free end of the pull rope 7 extends downwards to be fixed with the supporting plate, therefore, after the pull rope 7 is loosened by rotating the shaft 16, the pressing plate 5 can be driven to move upwards by the acting force of the spring 6, the pressing plate 5 can drive the second infrared sensor 30 on the bottom surface to rotate upwards, and when the second infrared sensor 30 rotates upwards to a certain angle, the pressing plate can leave from the head of the user, and at this moment, the camera 29 on the connecting block 11 is just aligned to the head of the user, with the structure, when the user is far away from the equipment, the second infrared sensor 30 can be away from the head of the user after the pressing plate 5 rotates a small angle, and when the user is near to the equipment, the second infrared sensor 30 can be away from the head of the user after the pressing plate 5 rotates a large angle, with the structure, when the user is far away from the equipment, the first infrared sensor 12 senses the position of the user and starts the motor 10 through the controller to drive the pressing plate 5 to rotate upwards, because the user is far away from the equipment, the pressing plate 5 rotates a small angle and then leaves from the head of the user, at this moment, the analog signal is transmitted to the controller through the second infrared sensor 30, the operation of the motor 10 is stopped through the controller, and at this moment, the support 3 drives the camera 29 to rotate a small angle and then just aligned to the face of the user, the mark identification is facilitated, when the user is close to the equipment, the pressure plate 5 rotates for a large angle and then leaves the head of the user, the motor 10 is stopped by the controller, the support 3 drives the camera 29 to rotate for a large angle at the moment, and the camera can be aligned with the face of the user, so that the mark identification is stably performed.
In addition, can also carry out automatic identification according to user's height difference through this device, when user's height is higher, clamp plate 5 need rotate great angle and just can leave from its head, and because second infrared sensor 30 is longer with user contact time, lead to motor 10 operating duration longer, can drive camera 29 through support 3 and rotate great angle, be favorable to aim at with user's face, and when user's height is shorter, the infrared ray that second infrared sensor 30 sent just leaves on one's body from the user soon, second infrared sensor 30 passes through controller stop motor 10 operation this moment, lead to support 3 to drive camera 29 and rotate less angle, just in time with user's face is aligned, be favorable to keeping the accuracy of mark discernment.
This structure still drives camera 29 through support 3 and rotates when driving clamp plate 5 pivoted, not only can adapt to user's position, can also carry out automatic adaptation to different user's height, is favorable to adapting to different in the in-service use condition, and application scope is wide, and the practicality is strong.
The working principle is as follows: when a user is positioned at the front side of the device, the first infrared sensor 12 can sense the position of the user, and then signals are transmitted to the controller, the controller is used for controlling the motor 10, so that the motor 10 is started, the motor 10 drives the transmission shaft 9 to rotate, so that the camera 29 is driven to rotate towards the outer side of the box body 2 through the meshing of the gear frame 25 and the incomplete gear ring 18, in the actual installation process, the pull rope 7 passes through the through groove 28 on the shaft 16 and is wound around the shaft 16, after a plurality of turns of winding, the free end of the pull rope 7 extends downwards to be fixed with the supporting plate, therefore, after the pull rope 7 is loosened by rotating the shaft 16, the pressing plate 5 can be driven to move upwards by the acting force of the spring 6, the pressing plate 5 can drive the second infrared sensor 30 on the bottom surface to rotate upwards, and when the second infrared sensor 30 rotates upwards to a certain angle, the pressing plate can leave from the head of the user, and at this moment, the camera 29 on the connecting block 11 is just aligned to the head of the user, with the structure, when the user is far away from the equipment, the second infrared sensor 30 can be away from the head of the user after the pressing plate 5 rotates a small angle, and when the user is near to the equipment, the second infrared sensor 30 can be away from the head of the user after the pressing plate 5 rotates a large angle, with the structure, when the user is far away from the equipment, the first infrared sensor 12 senses the position of the user and starts the motor 10 through the controller to drive the pressing plate 5 to rotate upwards, because the user is far away from the equipment, the pressing plate 5 rotates a small angle and then leaves from the head of the user, at this moment, the analog signal is transmitted to the controller through the second infrared sensor 30, the operation of the motor 10 is stopped through the controller, and at this moment, the support 3 drives the camera 29 to rotate a small angle and then just aligned to the face of the user, the mark identification is facilitated, when the user is close to the equipment, the pressure plate 5 rotates for a large angle and then leaves the head of the user, the motor 10 is stopped by the controller, the support 3 drives the camera 29 to rotate for a large angle at the moment, and the camera can be aligned with the face of the user, so that the mark identification is stably performed.
Claims (8)
1. A mark recognition device for food safety monitoring, characterized in that: the camera comprises a box body, wherein an opening is formed in the top of the box body, a support is rotatably arranged at the opening, a connecting block is arranged on the support, the connecting block is sleeved outside the support, and a camera is embedded in the connecting block;
the top of the box body is provided with a pressing plate which rotates in the same direction as the support, the bottom end of the pressing plate is provided with a pull rope, the pull rope passes through the through groove on the shaft and is wound on the outer side of the shaft, and the tail end of the pull rope extends downwards to be fixed with a supporting plate on the inner part of the box body;
the support bottom is provided with incomplete ring gear, the inside bottom of box is provided with the tooth frame with incomplete gear engaged with, be provided with the cross axle on the incomplete gear, the cross axle with all with the power supply synchro-driven setting around the axle.
2. A tag identification device for food safety monitoring according to claim 1, wherein: the power supply is the motor, the motor output is provided with the transmission shaft, cross axle and the equal fixedly connected with band pulley in the axle outside, the cover of band pulley outside is equipped with the belt.
3. A tag identification device for food safety monitoring according to claim 2, wherein: the improved box is characterized in that a round shaft is arranged on the inner side of the support, a support plate is fixedly connected between the round shaft and the support, baffles are fixedly connected to the front side and the rear side of the box body, the two ends of the round shaft are rotatably connected with the baffles through bearings, and the support is a regular polygon.
4. A tag identification device for food safety monitoring according to claim 1, wherein: the top of the gear frame is provided with an outer transmission gear meshed with the incomplete gear ring, the top and the bottom of the inner portion of the gear frame are both provided with inner transmission gears, and the incomplete gear is meshed with the inner transmission gears.
5. A tag identification device for food safety monitoring according to claim 1, wherein: the box body is characterized in that sleeves are fixedly connected to the front side wall and the rear side wall inside the box body, springs are arranged in the sleeves, and the springs extend upwards to the bottom of the pressing plate and are in contact with the bottom surface of the pressing plate.
6. A mark recognition device for food safety monitoring according to claim 4, wherein: the box body is characterized in that a first guide box is fixedly connected to one side of the box body, a second guide box is fixedly connected to the other side of the box body, sliding plates are connected to the inner portions of the first guide box and the second guide box in a sliding mode, the sliding plates are connected with the first guide box and the second guide box in a sealing mode, and connecting rods are fixedly connected between the tooth frames and the sliding plates.
7. A tag identification device for food safety monitoring according to claim 1, wherein: one side of the box body, which is close to the second guide box, is provided with a first infrared sensor, and one side of the bottom of the pressing plate is provided with a second infrared sensor.
8. A tag identification device for food safety monitoring according to claim 7, wherein: the novel solar water heater is characterized in that a controller is arranged in the box body and is a single chip microcomputer or a PLC, the first infrared sensor and the second infrared sensor are connected with the single chip microcomputer through electric wires, and the single chip microcomputer and the motor are connected through the electric wires, so that the motor can be controlled through the single chip microcomputer.
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