CN110633621A - High-precision face recognition device with adjusting function - Google Patents
High-precision face recognition device with adjusting function Download PDFInfo
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- CN110633621A CN110633621A CN201910668015.8A CN201910668015A CN110633621A CN 110633621 A CN110633621 A CN 110633621A CN 201910668015 A CN201910668015 A CN 201910668015A CN 110633621 A CN110633621 A CN 110633621A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/166—Detection; Localisation; Normalisation using acquisition arrangements
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Abstract
The invention relates to a high-precision face recognition device with an adjusting function, which comprises a bottom plate, a host and two support columns, wherein a display screen, a first camera, a first shooting mechanism and a second shooting mechanism are arranged on the host, the first shooting mechanism comprises a transverse shaft, a pulling assembly, two connecting blocks and two translation assemblies, the translation assemblies comprise a moving block, a second camera and two springs, the second shooting mechanism comprises a driving assembly, an adjusting block, two lifting assemblies and two third cameras, the high-precision face recognition device with the adjusting function drives the second camera to translate through the first shooting mechanism to shoot ears of a person to be detected, and simultaneously the second shooting mechanism adjusts the height position of the adjusting block to enable the third camera to shoot the nose and the mouth of the person to be detected, so that the comprehensiveness of face image acquisition is ensured, and a plurality of groups of characteristic data of face information are conveniently provided for analysis, and further improve the identification precision of the equipment.
Description
Technical Field
The invention relates to the field of face recognition equipment, in particular to a high-precision face recognition device with an adjusting function.
Background
Face recognition is a biometric technology for identity recognition based on facial feature information of a person. A series of related technologies, also commonly called face recognition and face recognition, are used to capture an image or video stream containing a face with a camera or a video camera, automatically detect and track the face in the image, and then perform face recognition on the detected face.
The precision of face identification equipment mainly relies on the face of camera to gather the image, the image that the camera was shot is the plane map, and the face is the three-dimensional shape that has the hierarchy in fact, in the camera shooting process, because the arch of nose and lip on the face, the fixed camera in position can't catch the image about the nose and about the lip, and simultaneously, the face still can cause partial sheltering to the ear, when leading to the camera to gather the image like this, can ignore the partial detail of face, cause equipment analysis, the storage is incomplete with the characteristic data who compares, and then the precision that face identification equipment judged has been influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, a high-precision face recognition device with an adjusting function is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high-precision face recognition device with an adjusting function comprises a bottom plate, a host and two support columns, wherein the bottom ends of the two support columns are respectively fixed on two sides above the bottom plate, the host is arranged on the two support columns, the host is provided with a display screen, a first camera, a first shooting mechanism, a second shooting mechanism and a plurality of keys, the first camera is positioned above the display screen, the first shooting mechanism is arranged above the first camera, the second shooting mechanism is arranged below the display screen, a PLC is arranged in the host, and the display screen and the first camera are both electrically connected with the PLC;
the first shooting mechanism comprises a transverse shaft, a pulling assembly, two connecting blocks and two translation assemblies, the connecting blocks are fixed on the host, two ends of the transverse shaft are respectively and fixedly connected with the two connecting blocks, the pulling assembly is arranged above the host, and the translation assemblies correspond to the connecting blocks one by one;
the translation assembly comprises a moving block, a second camera and two springs, the moving block is sleeved on the transverse shaft, the two springs are arranged above and below the transverse shaft respectively, the moving block is connected with the connecting block through the springs, the springs are in a stretching state, the second camera is fixed above the second moving block, and the second camera is electrically connected with the PLC;
the second shooting mechanism comprises a driving assembly, an adjusting block, two lifting assemblies and two third cameras, the two third cameras are respectively fixed above and below the adjusting block, the driving assembly is arranged between the adjusting block and the host, the two lifting assemblies are respectively arranged on two sides of the adjusting block, each lifting assembly comprises a gear and a rack, the driving assembly is in transmission connection with the gears, the radian of the gears is smaller than 180 degrees, the racks are fixed on the adjusting block, one or only one of the two lifting assemblies is meshed with the rack, and the third cameras are electrically connected with the PLC;
a temperature measuring module is arranged in the host, the temperature measuring module comprises a temperature measuring circuit, the temperature measuring circuit comprises a first operational amplifier, a second operational amplifier, a third operational amplifier, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first capacitor, a second capacitor, a third capacitor, a first adjustable resistor, a second adjustable resistor and a third adjustable resistor, the inverting input end of the first operational amplifier is connected with the first capacitor, the non-inverting input end of the first operational amplifier is grounded through the first resistor, the non-inverting input end of the first operational amplifier is connected with the output end of the first operational amplifier through the second resistor, the output end of the first operational amplifier is grounded through the first adjustable resistor, the adjustable end of the first adjustable resistor is connected with the output end of the first operational amplifier, the output end of the first operational amplifier is connected with the inverting input end of the second operational amplifier through a series circuit consisting of a third resistor and a fourth resistor, the inverting input end of the second operational amplifier is grounded through a third capacitor, the non-inverting input end of the second operational amplifier is respectively connected with a third resistor and a fourth resistor through a series circuit consisting of a second capacitor and a fifth resistor, the output end of the second operational amplifier is connected with the inverting input end of the third operational amplifier through a sixth resistor, the inverting input end of the third operational amplifier is connected with the output end of the third operational amplifier through a third adjustable resistor, the adjustable end of the third adjustable resistor is connected with the output end of the third operational amplifier, the non-inverting input end of the third operational amplifier is grounded through the second adjustable resistor, and the adjustable end of the second adjustable resistor is connected with the non-inverting input end of the third operational amplifier.
Preferably, in order to pull the two moving blocks to approach each other, the pulling assembly comprises a first motor, a buffer block, a driving shaft, two pulling units and two supporting rods, the first motor and the buffer block are fixed above the host through the two supporting rods respectively, the driving shaft is arranged between the first motor and the buffer block, the first motor is in transmission connection with the driving shaft, the pulling units correspond to the translation assemblies one by one, each pulling unit comprises a wire coil and a connecting wire, the wire coil is sleeved on the driving shaft, one end of the connecting wire is arranged on the wire coil, the other end of the connecting wire is connected with the moving block, and the first motor is electrically connected with the PLC.
Preferably, in order to fix the moving direction of the connecting line and to make the moving block move more stably, the pulling unit further comprises an adjusting pipe, the adjusting pipe is arc-shaped, the adjusting pipe is fixed on the host, and the adjusting pipe is sleeved on the connecting line.
Preferably, in order to prevent the connecting wire from being worn by the host machine, the pulling unit further comprises a guide wheel and a connecting frame, the connecting frame is U-shaped, two ends of the connecting frame are fixed on the host machine, the guide wheel is sleeved on the connecting frame, and the connecting wire bypasses the guide wheel.
Preferably, in order to ensure the strength and toughness of the connection line, the connection line is a carbon line.
Preferably, in order to drive the two gears to synchronously rotate, the driving assembly comprises a second motor, a driving wheel, a conveying belt and two driven wheels, the second motor is electrically connected with the PLC, the second motor is fixed on the host machine and is in transmission connection with the driving wheel, the two driven wheels are respectively arranged on two sides of the driving wheel, the driving wheel and the driven wheels are both arranged on the inner side of the conveying belt, the driven wheels are in one-to-one correspondence with the lifting assembly, a connecting shaft is arranged between each driven wheel and the corresponding gear, and the driven wheels are fixedly connected with the corresponding gear through the connecting shaft.
Preferably, in order to ensure that the adjusting block moves stably, sliding assemblies are arranged on two sides of the adjusting block and comprise a sliding frame and two sliding units, the sliding frame is U-shaped, two ends of the sliding frame are fixed on the host, the sliding units correspond to the third cameras one by one and comprise sliding blocks and side rods, the sliding blocks are sleeved on the sliding frame, and the sliding blocks are fixedly connected with the third cameras through the side rods.
Preferably, in order to facilitate heat dissipation of the host, circuit components in the host work in a proper temperature environment, so that the service life of the host is prolonged, and the host is provided with a heat dissipation port.
Preferably, in order to facilitate data transmission, the host is further provided with a data interface.
Preferably, in order to detect whether a person stands above the bottom plate, a pressure gauge is arranged in the bottom plate.
The high-precision face recognition device with the adjusting function has the advantages that the first shooting mechanism drives the second camera to horizontally shoot the ears of a person to be detected, the second shooting mechanism adjusts the height position of the adjusting block, the third camera shoots the nose and the mouth of the person to be detected, the comprehensiveness of face image acquisition is ensured, a plurality of groups of characteristic data of face information are conveniently provided for analysis, the recognition precision of equipment is further improved, compared with the existing shooting mechanism, the first shooting mechanism and the second shooting mechanism can shoot the detail position where the face is shielded, more comprehensive characteristic data of the face information are provided for equipment comparison and analysis, the reliability of face recognition of the equipment is ensured, signals are amplified in a multi-stage mode through the first operational amplifier, the second operational amplifier and the third operational amplifier in the temperature measuring circuit, therefore, the accuracy of signal detection is guaranteed, signals are amplified and adjusted through the adjustable resistor, signal overflow is prevented, and the reliability of temperature measurement is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of a high-precision face recognition device with an adjusting function according to the present invention;
FIG. 2 is a schematic structural diagram of a first shooting mechanism of the high-precision face recognition device with the adjusting function of the invention;
FIG. 3 is a schematic structural diagram of a second shooting mechanism of the high-precision face recognition device with the adjusting function of the invention;
FIG. 4 is a schematic structural diagram of a driving assembly of the high-precision face recognition device with the adjusting function according to the present invention;
FIG. 5 is a schematic circuit diagram of a temperature measuring module of the high-precision face recognition device with adjustment function of the present invention;
in the figure: 1. a bottom plate, 2, a main machine, 3, a support column, 4, a display screen, 5, a first camera, 6, a key, 7, a transverse shaft, 8, a connecting block, 9, a moving block, 10, a second camera, 11, a spring, 12, an adjusting block, 13, a third camera, 14, a gear, 15, a rack, 16, a first motor, 17, a buffer block, 18, a driving shaft, 19, a support rod, 20, an adjusting pipe, 21, a guide wheel, 22, a connecting frame, 23, a second motor, 24, a driving wheel, 25, a conveyor belt, 26, a driven wheel, 27, a sliding frame, 28, a sliding block, 29, a side rod, 30, a heat dissipation port, 31, a data interface, 32, a pressure gauge, 33, a wire coil, 34, a connecting shaft, 35, U1., a first operational amplifier, U2., a second operational amplifier, U3., a third operational amplifier, R1, a first resistor, R2, a second resistor, R3, a third resistor, R4, a fourth resistor, r5. fifth resistor, c1 first capacitor, C2. second capacitor, C3. third capacitor, R6.
The fourth resistor is composed of a sixth resistor, Rp1, a first adjustable resistor, Rp2, a second adjustable resistor and Rp3, a third adjustable resistor.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, a high-precision face recognition device with an adjusting function includes a bottom plate 1, a host 2 and two pillars 3, bottom ends of the two pillars 3 are respectively fixed at two sides above the bottom plate 1, the host 2 is erected on the two pillars 3, the host 2 is provided with a display screen 4, a first camera 5, a first shooting mechanism, a second shooting mechanism and a plurality of keys 6, the first camera 5 is located above the display screen 4, the first shooting mechanism is arranged above the first camera 5, the second shooting mechanism is arranged below the display screen 4, the host 2 is provided with a PLC, and the display screen 4 and the first camera 5 are both electrically connected with the PLC;
in this face identification equipment, by 3 fixed stay host computers 2 of pillar, first camera 5 on the host computer 2 shoots, confirm to detect the position of treating personnel's face, and show the image on display screen 4, it observes to conveniently detect personnel, in order to can gather comprehensive image, draw the multiunit characteristic data who detects personnel's face information, so that improve equipment's discernment ability, shoot the ear of mechanism respectively to the people face through first shooting mechanism and second, shoot around nose and the mouth, thereby guarantee that equipment can gather complete face image.
As shown in fig. 2, the first shooting mechanism includes a cross shaft 7, a pulling assembly, two connecting blocks 8 and two translation assemblies, the connecting blocks 8 are fixed on the host 2, two ends of the cross shaft 7 are respectively fixedly connected with the two connecting blocks 8, the pulling assembly is arranged above the host 2, and the translation assemblies are in one-to-one correspondence with the connecting blocks 8;
the translation assembly comprises a moving block 9, a second camera 10 and two springs 11, the moving block 9 is sleeved on the transverse shaft 7, the two springs 11 are respectively arranged above and below the transverse shaft 7, the moving block 9 is connected with the connecting block 8 through the springs 11, the springs 11 are in a stretching state, the second camera 10 is fixed above the second moving block 9, and the second camera 10 is electrically connected with the PLC;
the position of the transverse shaft 7 is fixed by the connecting block 8, the moving block 9 can slide on the transverse shaft 7, so that the second camera 10 can horizontally move to shoot the ear position of the face of a user, after the moving block 9 moves, the two moving blocks 9 can be close to each other by the pulling assembly, after the connecting line 34 in the pulling assembly is loosened, the spring 11 in a stretching state pulls the moving block 9 to move towards the connecting block 8 for restoring deformation, and therefore the two moving blocks 9 are far away from each other. (ii) a
As shown in fig. 3, the second shooting mechanism includes a driving assembly, an adjusting block 12, two lifting assemblies and two third cameras 13, the two third cameras 13 are respectively fixed above and below the adjusting block 12, the driving assembly is arranged between the adjusting block 12 and the host machine 2, the two lifting assemblies are respectively arranged on two sides of the adjusting block 12, each lifting assembly includes a gear 14 and a rack 15, the driving assembly is in transmission connection with the gear 14, the radian of the gear 14 is smaller than 180 °, the rack 15 is fixed on the adjusting block 12, the two lifting assemblies include and only have the gear 14 in one lifting assembly engaged with the rack 15, and the third cameras 13 are electrically connected with the PLC.
The driving component drives the gears 14 in the lifting components at two sides of the adjusting block 12 to synchronously rotate, only one gear 14 in the two lifting components is meshed with the rack 15, the two gears 14 respectively drive the two racks 15 to move in opposite directions, so that the adjusting block 12 can reciprocate in the vertical direction, when the first camera 5 shoots the face position, the positions of the nose and the lips on the face can be determined according to the face position, because the upper side and the lower side of the nose and the vicinity of the ears are shielded, the height of the adjusting block 12 is adjusted through the driving component, so that the third camera 13 at the top end of the adjusting block 12 and the camera at the bottom end of the adjusting block 12 shoot the positions of the nose and the lips of the human face, therefore, the comprehensiveness of image acquisition is ensured, various feature data of the face information are convenient to provide for comparison, and the reliability of identity recognition is improved;
as shown in fig. 5, a temperature measurement module is disposed in the host 2, the temperature measurement module includes a temperature measurement circuit, the temperature measurement circuit includes a first operational amplifier U1, a second operational amplifier U2, a third operational amplifier U3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first adjustable resistor Rp1, a second adjustable resistor Rp2, and a third adjustable resistor Rp3, an inverting input terminal of the first operational amplifier U1 is connected to a first capacitor C1, a non-inverting input terminal of the first operational amplifier U1 is grounded through a first resistor R1, a non-inverting input terminal of the first operational amplifier U1 is connected to an output terminal of a first operational amplifier U1 through a second resistor R2, a first adjustable resistor Rp 868653 is grounded to an output terminal of the first operational amplifier U1, an adjustable end of the first adjustable resistor Rp1 is connected with an output end of a first operational amplifier U1, an output end of the first operational amplifier U1 is connected with an inverting input end of a second operational amplifier U2 through a series circuit composed of a third resistor R3 and a fourth resistor R4, an inverting input end of the second operational amplifier U2 is grounded through a third capacitor C3, a non-inverting input end of the second operational amplifier U2 is connected with an inverting input end of a third operational amplifier U3 through a series circuit composed of a second capacitor C2 and a fifth resistor R5 respectively through a third resistor R3 and a fourth resistor R4, an output end of the second operational amplifier U2 is connected with an inverting input end of the third operational amplifier U3 through a sixth resistor R6, an inverting input end of the third operational amplifier U3 is connected with an output end of the third operational amplifier U3 through a third adjustable resistor Rp3, an adjustable end of the third resistor Rp3 is connected with an output end of a third operational amplifier U3, the non-inverting input terminal of the third operational amplifier U3 is grounded through a second adjustable resistor Rp2, and the adjustable terminal of the second adjustable resistor Rp2 is connected to the non-inverting input terminal of the third operational amplifier U3.
The temperature measuring module measures temperature, and in the temperature measuring circuit, signals are amplified in three stages through amplifying circuits formed by a first operational amplifier U1, a second operational amplifier U2 and a third operational amplifier U3 respectively, so that the accuracy of signal detection is guaranteed; the first adjustable resistor Rp1, the second adjustable resistor Rp2 and the third adjustable resistor Rp3 are used for adjusting signal amplification, signal overflow is prevented, and reliability of temperature measurement is improved.
As shown in fig. 2, the pulling assembly includes a first motor 16, a buffer block 17, a driving shaft 18, two pulling units and two support rods 19, the first motor 16 and the buffer block 17 are fixed above the host 2 through the two support rods 19, the driving shaft 18 is disposed between the first motor 16 and the buffer block 17, the first motor 16 is in transmission connection with the driving shaft 18, the pulling units correspond to the translation assemblies one to one, the pulling units include wire coils 33 and connecting wires 34, the wire coils 33 are sleeved on the driving shaft 18, one end of the connecting wire 34 is disposed on the wire coils 33, the other end of the connecting wire 34 is connected with the moving block 9, and the first motor 16 is electrically connected with the PLC.
The supporting rod 19 is used for fixing the heights of the first motor 16 and the buffer block 17, the PLC controls the first motor 16 to operate, the driving shaft 18 is made to rotate, the wire coil 33 is driven to rotate a disc, the moving block 9 is pulled to be far away from the corresponding connecting block 8 through the connecting wire 34, and the two connecting blocks 8 are made to be close to each other.
Preferably, in order to fix the moving direction of the connecting line 34 and to make the moving block 9 move more smoothly, the pulling unit further includes an adjusting tube 20, the adjusting tube 20 is arc-shaped, the adjusting tube 20 is fixed on the main machine 2, and the adjusting tube 20 is sleeved on the connecting line 34.
The movement direction of the connecting wire 34 is changed by the adjusting tube 20, and here, the adjusting tube 20 is in a shape of a quarter circle, so that the movement direction of the connecting wire 34 is changed by 90 degrees, the movement direction of the connecting wire 34 is switched between horizontal and vertical, and the moving block 9 can move stably on the transverse shaft 7.
Preferably, in order to prevent the connecting wire 34 from being worn away from the main machine 2, the pulling unit further includes a guide wheel 21 and a connecting frame 22, the connecting frame 22 is U-shaped, two ends of the connecting frame 22 are fixed on the main machine 2, the guide wheel 21 is sleeved on the connecting frame 22, and the connecting wire 34 bypasses the guide wheel 21. Rotate through leading wheel 21, avoid connecting wire 34 and host computer 2 contact, prevent that connecting wire 34 from removing the in-process and taking place wearing and tearing with host computer 2, and then influenced connecting wire 34's life.
Preferably, the connection line 34 is made of carbon wire in order to ensure the strength and toughness of the connection line 34 by utilizing the characteristics of high strength and good toughness of carbon wire.
As shown in fig. 4, the driving assembly includes a second motor 23, a driving wheel 24, a transmission belt 25 and two driven wheels 26, the second motor 23 is electrically connected to the PLC, the second motor 23 is fixed on the main machine 2, the second motor 23 is in transmission connection with the driving wheel 24, the two driven wheels 26 are respectively disposed on two sides of the driving wheel 24, the driving wheel 24 and the driven wheels 26 are both disposed on the inner side of the transmission belt 25, the driven wheels 26 are in one-to-one correspondence with the lifting assembly, a connection shaft 35 is disposed between the driven wheels 26 and the gear 14, and the driven wheels 26 are fixedly connected to the gear 14 through the connection shaft 35.
The PLC controls the second motor 23 to operate, so that the driving wheel 24 rotates, the driving wheel 24 drives the conveyor belt 25 to rotate, the driven wheels 26 at two ends of the inner side of the conveyor belt 25 rotate, the driven wheels 26 drive the gear 14 to rotate through the connecting shaft 35, the gear 14 is enabled to rotate at the same direction and speed as the driven wheels 26, and therefore synchronous rotation of the two gears 14 is achieved.
Preferably, in order to ensure that the adjusting block 12 moves smoothly, sliding assemblies are arranged on two sides of the adjusting block 12, each sliding assembly comprises a sliding frame 27 and two sliding units, each sliding frame 27 is U-shaped, two ends of each sliding frame 27 are fixed on the main machine 2, the sliding units correspond to the third cameras 13 one by one, each sliding unit comprises a sliding block 28 and a side rod 29, each sliding block 28 is sleeved on the corresponding sliding frame 27, and each sliding block 28 is fixedly connected with the corresponding third camera 13 through the side rod 29. The moving direction of the slider 28 is fixed by the slide frame 27, and the third camera 13 is kept moving smoothly by the side lever 29, thereby achieving a smooth movement of the adjusting block 12 in the vertical direction.
Preferably, in order to facilitate heat dissipation of the host 2, circuit components in the host 2 are operated in a suitable temperature environment, so as to prolong the service life of the host 2, and the host 2 is provided with a heat dissipation port 30.
Preferably, the host 2 is further provided with a data interface 31 for facilitating data transmission. The data interface 31 can be externally connected with a mouse, a keyboard, a U disk and other devices, and is convenient for data transmission and setting of corresponding parameters of the face recognition device.
Preferably, in order to detect whether a person stands above the bottom plate 1, a pressure gauge 32 is provided in the bottom plate 1. When someone stands on bottom plate 1, pressure gauge 32 in the bottom plate 1 detects pressure data, and pressure gauge 32 feeds back pressure data to the PLC in the host computer 2 to make PLC confirm that someone is on bottom plate 1, shoot the mechanism through first camera 5, first shooting mechanism and second and carry out the face shooting this moment, the face identification of being convenient for.
This face identification equipment is when carrying out authentication, except gathering the image by first camera 5, confirm to wait to detect the head position back of personnel, still drive movable block 9 through pulling subassembly and spring 11 and move on cross axle 7, make the second camera 10 of movable block 9 top shoot the ear of people's face, drive the lifting unit motion by drive assembly simultaneously, adjust the high position of regulating block 12, the third camera 13 that makes the top of regulating block 12 and bottom shoots the nose and the mouth of people's face, thereby the comprehensiveness of face image collection has been guaranteed, be convenient for provide the multiunit characteristic data of face information and carry out the analysis, and then the recognition accuracy of equipment has been improved.
Compared with the prior art, the high-precision face recognition device with the adjusting function drives the second camera 10 to horizontally move through the first shooting mechanism to shoot the ears of a person to be detected, and simultaneously the second shooting mechanism adjusts the height position of the adjusting block 12, so that the third camera 13 shoots the nose and the mouth of the person to be detected, thereby ensuring the comprehensiveness of face image acquisition, facilitating the analysis of multiple groups of characteristic data of face information, further improving the recognition precision of equipment, compared with the existing shooting mechanism, the first shooting mechanism and the second shooting mechanism can shoot the detail position where the face is shielded, thereby providing more comprehensive characteristic data of the face information for the equipment comparison and analysis, further ensuring the reliability of the face recognition of the equipment, and performing multi-stage amplification on signals through the first operational amplifier, the second operational amplifier and the third operational amplifier in the temperature measuring circuit, therefore, the accuracy of signal detection is guaranteed, signals are amplified and adjusted through the adjustable resistor, signal overflow is prevented, and the reliability of temperature measurement is improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The high-precision face recognition device with the adjusting function is characterized by comprising a bottom plate (1), a host (2) and two pillars (3), wherein the bottom ends of the two pillars (3) are respectively fixed at two sides above the bottom plate (1), the host (2) is erected on the two pillars (3), the host (2) is provided with a display screen (4), a first camera (5), a first shooting mechanism, a second shooting mechanism and a plurality of keys (6), the first camera (5) is positioned above the display screen (4), the first shooting mechanism is arranged above the first camera (5), the second shooting mechanism is arranged below the display screen (4), the host (2) is internally provided with a PLC, and the display screen (4) and the first camera (5) are electrically connected with the PLC;
the first shooting mechanism comprises a transverse shaft (7), a pulling assembly, two connecting blocks (8) and two translation assemblies, wherein the connecting blocks (8) are fixed on the host (2), two ends of the transverse shaft (7) are respectively and fixedly connected with the two connecting blocks (8), the pulling assembly is arranged above the host (2), and the translation assemblies correspond to the connecting blocks (8) one by one;
the translation assembly comprises a moving block (9), a second camera (10) and two springs (11), the moving block (9) is sleeved on the transverse shaft (7), the two springs (11) are respectively arranged above and below the transverse shaft (7), the moving block (9) is connected with the connecting block (8) through the springs (11), the springs (11) are in a stretching state, the second camera (10) is fixed above the second moving block (9), and the second camera (10) is electrically connected with the PLC;
the second shooting mechanism comprises a driving assembly, an adjusting block (12), two lifting assemblies and two third cameras (13), the two third cameras (13) are respectively fixed above and below the adjusting block (12), the driving assembly is arranged between the adjusting block (12) and the host (2), the two lifting assemblies are respectively arranged on two sides of the adjusting block (12), each lifting assembly comprises a gear (14) and a rack (15), the driving assembly is in transmission connection with the gear (14), the radian of the gear (14) is smaller than 180 degrees, the rack (15) is fixed on the adjusting block (12), the gear (14) in only one lifting assembly is meshed with the rack (15) in the two lifting assemblies, and the third cameras (13) are electrically connected with the PLC;
a temperature measuring module is arranged in the host (2), the temperature measuring module comprises a temperature measuring circuit, the temperature measuring circuit comprises a first operational amplifier (U1), a second operational amplifier (U2), a third operational amplifier (U3), a first resistor (R1), a second resistor (R2), a third resistor (R3), a fourth resistor (R4), a fifth resistor (R5), a sixth resistor (R6), a first capacitor (C1), a second capacitor (C2), a third capacitor (C3), a first adjustable resistor (Rp1), a second adjustable resistor (Rp2) and a third adjustable resistor (Rp3), the inverting input end of the first operational amplifier (U6342) is connected with the first capacitor (C1), the non-inverting input end of the first operational amplifier (U1) is grounded through the first resistor (R1), the non-inverting input end of the first operational amplifier (U395) is connected with the output end of the first operational amplifier (U2) through the second resistor (R57323), the output end of the first operational amplifier (U1) is grounded through a first adjustable resistor (Rp1), the adjustable end of the first adjustable resistor (Rp1) is connected with the output end of a first operational amplifier (U1), the output end of the first operational amplifier (U1) is connected with the inverting input end of a second operational amplifier (U2) through a series circuit formed by a third resistor (R3) and a fourth resistor (R4), the inverting input end of the second operational amplifier (U2) is grounded through a third capacitor (C3), the non-inverting input end of the second operational amplifier (U2) is connected with a third resistor (R3) and a fourth resistor (R4) through a series circuit formed by a second capacitor (C2) and a fifth resistor (R5), the output end of the second operational amplifier (U2) is connected with the inverting input end of the third operational amplifier (U3) through a sixth resistor (R6), the inverting input end of the third operational amplifier (U3) is connected with the output end of a third operational amplifier (U3) through a third adjustable resistor (Rp3), the adjustable end of the third adjustable resistor (Rp3) is connected with the output end of the third operational amplifier (U3), the non-inverting input end of the third operational amplifier (U3) is grounded through a second adjustable resistor (Rp2), and the adjustable end of the second adjustable resistor (Rp2) is connected with the non-inverting input end of the third operational amplifier (U3).
2. The high-precision human face recognition device with the adjusting function according to claim 1, wherein the pulling assembly comprises a first motor (16), a buffer block (17), a driving shaft (18), two pulling units and two supporting rods (19), the first motor (16) and the buffer block (17) are respectively fixed above the host (2) through the two supporting rods (19), the driving shaft (18) is arranged between the first motor (16) and the buffer block (17), the first motor (16) is in transmission connection with the driving shaft (18), the pulling units correspond to the translation assemblies one by one, the pulling units comprise a wire coil (33) and a connecting wire (34), the wire coil (33) is sleeved on the driving shaft (18), one end of the connecting wire (34) is arranged on the wire coil (33), and the other end of the connecting wire (34) is connected with the moving block (9), the first motor (16) is electrically connected to the PLC.
3. The high-precision human face recognition device with the adjusting function according to claim 2, wherein the pulling unit further comprises an adjusting tube (20), the adjusting tube (20) is in the shape of a circular arc, the adjusting tube (20) is fixed on the main machine (2), and the adjusting tube (20) is sleeved on the connecting wire (34).
4. The high-precision human face recognition device with the adjusting function according to claim 2, wherein the pulling unit further comprises a guiding wheel (21) and a connecting frame (22), the connecting frame (22) is U-shaped, two ends of the connecting frame (22) are fixed on the main machine (2), the guiding wheel (21) is sleeved on the connecting frame (22), and the connecting wire (34) bypasses the guiding wheel (21).
5. The high-precision face recognition device with the adjustment function according to claim 2, wherein the connection line (34) is a carbon line.
6. The high-precision face recognition device with the adjusting function according to claim 1, wherein the driving assembly comprises a second motor (23), a driving wheel (24), a transmission belt (25) and two driven wheels (26), the second motor (23) is electrically connected with the PLC, the second motor (23) is fixed on the main machine (2), the second motor (23) is in transmission connection with the driving wheel (24), the two driven wheels (26) are respectively arranged on two sides of the driving wheel (24), the driving wheel (24) and the driven wheels (26) are both arranged on the inner side of the transmission belt (25), the driven wheels (26) are in one-to-one correspondence with the lifting assembly, a connecting shaft (35) is arranged between the driven wheels (26) and the gear (14), and the driven wheels (26) are fixedly connected with the gear (14) through the connecting shaft (35).
7. The high-precision human face recognition device with the adjusting function according to claim 1, wherein sliding assemblies are disposed on two sides of the adjusting block (12), each sliding assembly comprises a sliding frame (27) and two sliding units, each sliding frame (27) is U-shaped, two ends of each sliding frame (27) are fixed on the host (2), each sliding unit corresponds to one third camera (13), each sliding unit comprises a sliding block (28) and a side rod (29), each sliding block (28) is sleeved on each sliding frame (27), and each sliding block (28) is fixedly connected with each third camera (13) through each side rod (29).
8. The high-precision face recognition device with the adjusting function according to claim 1, wherein the host (2) is provided with a heat sink (30).
9. The high-precision face recognition device with the adjustment function according to claim 1, wherein the host (2) is further provided with a data interface (31).
10. The high-precision face recognition device with the adjustment function according to claim 1, wherein a pressure gauge (32) is provided in the bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910668015.8A CN110633621A (en) | 2019-07-23 | 2019-07-23 | High-precision face recognition device with adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910668015.8A CN110633621A (en) | 2019-07-23 | 2019-07-23 | High-precision face recognition device with adjusting function |
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| Publication Number | Publication Date |
|---|---|
| CN110633621A true CN110633621A (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910668015.8A Withdrawn CN110633621A (en) | 2019-07-23 | 2019-07-23 | High-precision face recognition device with adjusting function |
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| Country | Link |
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| CN (1) | CN110633621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115278176A (en) * | 2022-07-29 | 2022-11-01 | 山东大学 | Target detection and identification device and method |
| WO2024067300A1 (en) * | 2022-09-26 | 2024-04-04 | 厦门松霖科技股份有限公司 | Face image collecting apparatus and skin detection instrument |
-
2019
- 2019-07-23 CN CN201910668015.8A patent/CN110633621A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115278176A (en) * | 2022-07-29 | 2022-11-01 | 山东大学 | Target detection and identification device and method |
| WO2024067300A1 (en) * | 2022-09-26 | 2024-04-04 | 厦门松霖科技股份有限公司 | Face image collecting apparatus and skin detection instrument |
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Application publication date: 20191231 |
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