CN112532768B - Pop-up three-dimensional identification device and mobile terminal - Google Patents
Pop-up three-dimensional identification device and mobile terminal Download PDFInfo
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- CN112532768B CN112532768B CN201910824312.7A CN201910824312A CN112532768B CN 112532768 B CN112532768 B CN 112532768B CN 201910824312 A CN201910824312 A CN 201910824312A CN 112532768 B CN112532768 B CN 112532768B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/20—Details of telephonic subscriber devices including a rotatable camera
Abstract
The invention provides a pop-up three-dimensional identification device and a mobile terminal, wherein the three-dimensional identification device comprises a pushing piece, a three-dimensional identification assembly and a rotating piece, the pushing piece comprises a driving piece and a push rod, and the driving piece is used for driving the push rod to extend or retract; the three-dimensional identification component comprises an ejection body, a depth camera and a multi-time optical zoom camera, wherein the depth camera and the multi-time optical zoom camera are arranged on the ejection body; the rotating piece is connected with the push rod and the popping body and is used for driving the popping body to rotate so that the depth camera and the multiple optical zoom camera arranged on the popping body rotate. The pushing piece is provided with a limit induction switch and a control circuit, the popping body is provided with an angle sensor, the mobile terminal processor performs program operation by acquiring information of the limit induction switch and the control circuit so as to ensure that the popping body stretches out of the mobile terminal shell, then the rotating piece is started to rotate the popping body, and the rotating direction of the popping body is further adjusted by acquiring information of the angle sensor. The processor running program is stored in the mobile terminal memory.
Description
Technical Field
The present invention relates to the field of mobile terminals, and in particular, to a pop-up three-dimensional identification device and a mobile terminal.
Background
Some mobile terminals on the market today use a pop-up approach to keep the front camera independent of the exterior of the display screen to preserve the integrity of the display screen. The front camera is fixed on the electric push rod behind the display screen in the machine body, and the system controls the electric push rod to move up and down through a program instruction so as to achieve a pop-up effect.
Meanwhile, the pop-up type camera of the mobile terminal on the market is limited to be applied to a position facing the front surface, the pop-up structure does not have a rotating function, and three-dimensional identification devices adopting a structured light or time of flight (TOF) technology are also fixed inside a machine body, and can only move forwards or backwards and cannot change directions.
In view of the foregoing, it is desirable to provide a novel pop-up three-dimensional recognition device and a mobile terminal, which solve or at least alleviate the above-mentioned technical drawbacks.
Disclosure of Invention
The invention mainly aims to provide a pop-up three-dimensional identification device and a mobile terminal, and aims to solve the technical problem that the three-dimensional identification device of the mobile terminal cannot pop up and rotate in the prior art.
To achieve the above object, according to one aspect of the present invention, there is provided a pop-up three-dimensional recognition apparatus including:
the pushing piece comprises a driving piece and a pushing rod, and the driving piece is used for driving the pushing rod to extend or retract;
the three-dimensional identification assembly comprises an ejecting body, a depth camera and a multiple optical zoom camera, wherein the depth camera and the multiple optical zoom camera are arranged on the ejecting body;
the rotating piece is connected with the push rod and the popping body and is used for driving the popping body to rotate so that the depth camera and the multi-time optical zoom camera arranged on the popping body rotate.
Preferably, the pushing piece is provided with a limit proximity sensing switch for sensing an upper limit state and a lower limit state of the push rod, and the bottom of the popping body is provided with an angle sensor for sensing the rotating angle of the push rod;
the limiting proximity sensing switch senses upper limiting state information of the push rod and is used for controlling the pop-up body to pop up to a preset position and then starting the rotating piece to drive the pop-up body to rotate, and the angle sensor is connected with the driving piece in a signal mode and used for adjusting the rotating direction of the pop-up body.
Preferably, the pushing piece further comprises a coupler, a revolving frame, a limit proximity induction switch arranged on the revolving frame, a screw rod and a nut seat sleeved on the screw rod, the push rod is connected with the nut seat, and the coupler is connected with the driving piece and the screw rod;
the pop-up three-dimensional identification device further comprises a fixed base, wherein the fixed base is used for ensuring the stable operation of the pushing piece, and the fixed base supports the pop-up body in the push rod retraction state.
Preferably, the rotating member comprises a rotating motor and a torsion spring;
when the rotating piece is a rotating motor, the rotating motor is in transmission connection with the ejecting body;
when the rotating piece is a torsion spring, one end of the torsion spring is connected with the fixed base, and the other end of the torsion spring is connected with the revolving frame.
Preferably, the three-dimensional identification device further comprises a control circuit, and the control circuit is connected with the driving piece and used for controlling the driving piece to rotate positively or negatively.
Preferably, the limit proximity switch comprises an upper limit proximity switch and a lower limit proximity switch, the upper limit proximity switch is arranged at the upper end of the revolving frame, and the lower limit proximity switch is arranged at the lower end of the revolving frame; the limit proximity sensing switch is a Hall sensing device, and the Hall sensing device is in signal connection with the control circuit.
Preferably, an environmental optical sensor is arranged at the bottom of the popping body, and the environmental optical sensor is used for carrying out auxiliary judgment on whether the popping body pops up to a preset position.
Preferably, the depth camera is used for acquiring depth information of the target object in multiple directions under the drive of the rotating piece;
the multi-time optical zoom camera is used for acquiring color information of a target object in multiple directions under the drive of the rotating piece, and can adapt to different shooting requirements in the process of shooting the color information in multiple directions, particularly forward self-shooting and backward long-range shooting by adjusting the optical focal length.
According to another aspect of the present invention, there is further provided a mobile terminal including a housing formed with a receiving groove and the pop-up three-dimensional recognition device as described above, the pop-up three-dimensional recognition device being telescopically mounted in the receiving groove.
Preferably, the mobile terminal further comprises a processor and a memory, wherein the processor performs program operation by acquiring information of the taking limit proximity inductive switch and the control circuit to ensure that the popping body pops up to a preset position which is the edge of the outer surface of the shell, then starts the rotating piece to rotate the popping body, and adjusts the rotation direction according to the information of the angle sensor;
after the popping body pops up and the direction is determined, the processor fuses the depth information and the color information into three-dimensional image information by calculating the depth information of the depth camera about the target object and acquiring the color information of the multi-time optical zoom camera about the target object, so that the three-dimensional identification of the target object is realized;
the processor running program is stored in a memory of the mobile terminal.
According to another aspect of the present invention, there is further provided a mobile terminal including a housing formed with a receiving groove and the pop-up three-dimensional recognition device as described above, the pop-up three-dimensional recognition device being telescopically mounted in the receiving groove.
The mobile terminal is provided with a processor and a memory, wherein the processor performs program operation by acquiring information of the limit inductive switch and the control circuit so as to ensure that the popping body pops up to a preset position which is the edge of the outer surface of the shell, then the rotating piece is started to rotate the popping body, and the rotating direction is adjusted according to the information of the angle sensor.
Further, after the popping body pops up and the direction is determined, the processor fuses the depth information and the color information into three-dimensional image information by calculating the depth information of the depth camera about the target object and acquiring the color information of the multi-time optical zoom camera about the target object, so that the three-dimensional identification of the target object is realized.
The processor running program is stored in a memory of the mobile terminal.
In the technical scheme, the pop-up three-dimensional identification device comprises a pushing piece, a three-dimensional identification assembly and a rotating piece, wherein the pushing piece comprises a driving piece and a push rod, and the driving piece is used for driving the push rod to extend or retract; the three-dimensional identification component comprises an ejection body, a depth camera and a multiple optical zoom camera, wherein the depth camera and the multiple optical zoom camera are arranged on the ejection body; the rotating piece is connected with the push rod and the ejecting body and is used for driving the ejecting body to rotate so that the camera arranged on the ejecting body rotates. The three-dimensional identification assembly and the rotating piece are pushed out to a preset position through the push rod extending, and the ejecting body is driven to rotate through the rotating piece, so that the three-dimensional identification assembly arranged on the ejecting body rotates. Compared with the prior art, the invention has the advantage of enabling the three-dimensional identification device of the mobile terminal to pop up and rotate.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a two-motor scheme of a pop-up three-dimensional identification device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a single motor scheme of a pop-up three-dimensional identification device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a single motor scheme control circuit of a pop-up three-dimensional recognition device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a control path of a pop-up three-dimensional recognition device according to an embodiment of the present invention;
FIG. 5 is a diagram of a mobile terminal according to another embodiment of the present invention;
FIG. 6 is another schematic diagram of a mobile terminal (with an RGB camera added) according to another embodiment of the present invention;
FIG. 7 is a schematic diagram of a mobile terminal according to another embodiment of the present invention;
fig. 8 is a schematic diagram of another state of fig. 7.
Reference numerals illustrate:
the achievement of the object, functional features and advantages of the present invention will be further described with reference to the drawings in connection with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as upper and lower … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
Moreover, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the embodiments, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present invention.
It should be noted that, the directions in the present invention are based on the directions shown in fig. 1, that is, "up, down, horizontal, and vertical" in the present invention correspond to the "up, down, horizontal, and vertical" directions in fig. 1, respectively.
Referring to fig. 1 and 2, according to an aspect of the present invention, there is provided a pop-up three-dimensional recognition apparatus including:
the pushing piece comprises a driving piece and a push rod 19, and the driving piece is used for driving the push rod 19 to extend or retract;
a three-dimensional recognition assembly 2 including an ejector 21 and a depth camera 22 and a multiple optical zoom camera 23 provided on the ejector 21;
a rotating member connecting the push rod 19 and the ejector 21, the rotating member for driving the ejector 21 to rotate so as to rotate the depth camera 22 and the multiple optical zoom camera 23 provided on the ejector 21.
In the above embodiment, the three-dimensional recognition assembly 2 and the rotating member are pushed out to the preset position by the push rod 19 being extended, and the ejector 21 is driven to rotate by the rotating member so that the depth camera 22 and the multiple optical zoom camera 23 provided on the ejector 21 are rotated. Compared with the prior art, the invention has the advantage of enabling the three-dimensional identification device of the mobile terminal to pop up and rotate. This embodiment is particularly suitable for use in mobile terminals, in particular in mobile phones. The pop-up three-dimensional recognition device is arranged in the shell 70, when the pop-up three-dimensional recognition device is required to be used, the push rod 19 is controlled by the keys of the mobile phone screen to extend out of the shell 70 exposing the three-dimensional recognition component 2 at the top of the mobile phone, the camera can start photographing or shooting, and the three-dimensional recognition component 2 can be driven to rotate by 360 degrees through the rotating piece, so that images of all angles are shot. Compared with the prior art, the invention has the advantage of enabling the three-dimensional identification device of the mobile terminal to pop up and rotate. The driving member may be a driving motor.
The depth camera 22 is currently implemented using TOF (time of flight) technology and structured light technology. The TOF technology transmits infrared light to a target object through an infrared pulse transmitter, an infrared camera receives the infrared light reflected by the target object, and a system calculates the time difference between the received infrared light and the infrared light transmitted before to establish scene depth information. Compared with the TOF technology, the structured light technology relates to an infrared light supplementing lamp, an infrared spot array projector, an infrared camera, a distance sensor and the like, scene depth information is established by calculating the difference between a received light spot array which is changed by scene reflection and a previously emitted structural feature light spot array, the device is more and larger, and diffraction light spots adjusted by stripes are easily interfered by strong light and are attenuated seriously, so that the backward application effect is poor. At the same time, structured light has a large baseline (i.e. the projector and receiver need to be kept a certain distance), the TOF technique baseline can be almost zero. Together with the existing TOF technology alone for forward and backward applications, the depth camera 22 of fig. 5 prefers the TOF technology solution. Two parts, the infrared emitter and the infrared receiver, outside the depth camera 22.
For the multiple optical zoom camera 23, two times and less can be realized by a camera module close to a cube, more than three times of the multiple optical zoom camera can be considered to be a periscope, and the periscope is composed of a lens, an upper steering prism, a zoom/focusing lens group, a lens group driving mechanism, an upper optical filter, a lower steering prism, an optical sensing substrate and the like, wherein the lens group is a zoom/focusing lens group. The cavity of the periscope type multiple optical zoom camera 23 module is obviously elongated by the lens group to form a obvious cuboid; the steering lens and the steering lens change the light path to the lens group cavity, and the lens group driving mechanism controls the lens group distance conversion to realize multiple optical zooming (the lens shows a wide angle to long focus effect). The optical zooming effect is far better than the digital zooming effect of the software means, and the multiple optical zooming can be flexibly configured according to different scenes to obtain better shooting effect, so that the mobile terminal is very suitable for the trend of continuously improving the shooting performance of the mobile terminal. When the multi-power optical zoom camera 23 is used for forward, the system controls the multi-power optical zoom camera to a relatively short focal length so as to realize close-range self-photographing or maintain long focus, and the requirements of micro-distance functions (namely a so-called long-focus micro-distance lens) and the like are met by adjusting and controlling a lens group or inserting a clamping piece; when the system is used for backward, the system is mainly controlled to be in a long focal length to realize ideal long-range shooting requirements, and the focal length can be optionally changed to meet the shooting requirements of diversity. This forward-backward conversion can be achieved by rotating the ejector 21 by 180 degrees. In particular, the periscope type multiple optical zoom camera 23 can be fused to the rotating structure of the ejector 21, which is advantageous for optimizing the structural space.
The depth camera 22 and the periscope type multi-time optical zoom camera 23 are jointly arranged in the pop-up body 21, and the three-dimensional RGBD information is synthesized by the depth D information of the depth camera 22 and the two-dimensional RGB information of the multi-time optical zoom camera 23, so that the three-dimensional identification and the related application are facilitated; the ejector 21 is rotated, so that three-dimensional recognition application can be performed in any direction, and the backward three-dimensional recognition is realized by converting the forward direction into the backward direction. Therefore, the method can not only meet the current mature safety unlocking and payment application of forward face three-dimensional recognition, but also be compatible with the current wider application trend of backward AR/VR photographing and game, virtual shopping, ranging, indoor positioning navigation and the like based on three-dimensional recognition.
According to a preferred embodiment of the present invention, referring again to fig. 1 and 2, the pusher further comprises a coupler 11, a turret 12, a limit proximity sensor switch provided on the turret 12, a screw 15, and a nut seat 16 sleeved on the screw 15, wherein a push rod 19 is connected to the nut seat 16, and the coupler 11 connects a driving member 18 and the screw 15. The bottom of the screw rod 15 is embedded on the coupler 11, and the top is connected with the upper end of the revolving frame 12. The driving member 18 drives the screw 15 to rotate (here, the screw 15 rotates only and does not move in the up-down direction) through the coupling 11, so that the nut seat 16 fitted over the screw 15 moves up-down to extend or retract the push rod 19 connected to the nut seat 16. The screw rod 15 is only threaded at the part in the revolving frame 12, so that the travel range of the nut seat 16 is limited, and the nut seat 16 adopts balls to form the ball screw rod 15 with better effect. It is also conceivable to attach a nut seat retainer 17 to the nut seat 16 near the top end of the turret 12, and to connect the push rod 19 to the nut seat retainer 17. In this embodiment, the driving member 18 drives the screw rod 15 to rotate through the coupling 11 to drive the nut seat 16 to lift, so that the rotational movement of the driving member 18 is changed into linear movement, and the three-dimensional recognition assembly 2 fixed on the push rod 19 is driven to lift. The nut seat 16 is provided with an upper limit proximity sensor switch 13 and a lower limit proximity sensor switch 14 at the inner position of the revolving frame 12 corresponding to the upper limit and the lower limit of the travel, the upper limit proximity sensor switch 13 and the lower limit proximity sensor switch 14 can be made of hall devices (also can be optocouplers and thyristors), and when the nut seat 16 approaches to the upper limit proximity sensor switch 13 or the lower limit proximity sensor switch 14, the driving element 18 is turned off, so as to avoid continuous operation of the driving element 18 at the upper limit and the lower limit of the travel. Although the lens areas of the depth camera 22 and the multiple optical zoom camera 23 in the three-dimensional recognition assembly are not large, the camera module and the connecting circuit after the lens occupy a large space, so that the ejector 21 is generally in a shape of a cuboid with a rectangular, trapezoid or elliptic cross section and a regular plane shape at the upper part and a cylinder or an ellipsoid shape close to the cylinder at the lower part. Therefore, the ejector 21 needs to be raised out of the top of the housing 70 (cannot rotate inside the housing 70) at the upper portion.
According to a preferred embodiment of the present invention, still referring to fig. 1 and 2, the housing 70 is formed with a receiving groove 80, and the pop-up three-dimensional recognition device is telescopically installed in the receiving groove 80; meanwhile, the pop-up three-dimensional recognition apparatus further includes a fixing base 90 (usually firmly fixed to the housing 70 or a middle frame inside the mobile terminal), through which the push rod 19 passes for ensuring stable operation of the push rod 19, and for holding the pop-up body 21 in a retracted state of the push rod 19. In particular, although the accommodating groove 80 is shown in fig. 1 and 2 by forming the hole in the baffle 72, the baffle 72 may be directly formed into a bucket shape to directly wrap the accommodating groove 80, or even the baffle 72 may be integrally formed with the fixing base 90.
The invention mainly comprises the following two embodiments:
first kind: dual motor scheme
Referring to fig. 1, here, a dual motor refers to a driving member 18 and a rotating motor 30. In the scheme, a rotating motor 30 capable of driving the ejector 21 to rotate is arranged at the bottom of the ejector 21 at the upper end of a push rod 19 outside a driving piece 18. When the ejector 21 and the camera are partially pushed out to a predetermined position (may be after the mobile phone case 70 is pushed out), the rotating motor 30 drives the ejector 21 to rotate, thereby causing the camera provided to the ejector 21 to rotate and change direction. The direction and angle of rotation of the ejector 21 can be arbitrary, the rotation angle can reach 360 degrees, and the common mode is forward + backward, so that the camera on the ejector 21 can be reused forward and backward.
It should be emphasized that, in the above-mentioned scheme, in order to avoid that when the ejector 21 does not extend completely outside the housing 70, the rotating motor 30 drives the ejector 21 to rotate, so that the structure of the ejector 21 is damaged (so that the ejector 21 is still in the mobile phone shell), when the nut seat 16 reaches the upper limit of the travel, the corresponding upper limit approaches the inductive switch 13 to turn off the driving member 18, and meanwhile, the control circuit of the rotating motor 30 is turned on. The upper limit proximity sensor 13 immediately turns off the control circuit of the rotary electric machine 30 once the nut seat 16 descends from the top of the stroke, which ensures that the rotary electric machine 30 can operate only after the nut seat 16 reaches the upper limit of the stroke, and the rotary electric machine 30 stops rotating when the nut seat 16 is about to descend. Of course, it is necessary to ensure that the ejector 21 is restored to the pre-rotation state after the last rotation of the rotary motor 30, otherwise, the inside of the body cannot be retracted (as long as the ejector 21 is not in a regular circular shape, it is required to ensure that the direction of the ejector 21 coincides with the direction before the ejection of the handset housing 70, and otherwise, it may be jammed and cannot be retracted). Therefore, the state of the upper limit proximity switch 13 is changed, and the driving element 18 is not immediately triggered to be reversed, but is reversed after the return notification signal of the rotating electric machine 30 is issued. In order to confirm whether the rotating electric machine 30 returns to the initial position, an angle sensor 50 capable of sensing the rotation of the transmission shaft of the rotating electric machine 30 may be provided at the bottom of the ejector 21, and when the angle sensor 50 detects that the rotation angle is 0 degrees or 360 degrees, the angle sensor 50 sends a return notification signal to the driver 18. Of course, if the cross section of the ejector 21 is a regular rectangle or oval, the angle sensor 50 may send a homing notification signal to the driver 18 when the angle sensor 50 detects that the rotation angle is 180 degrees. The angle sensor 50 is preferably a three-axis hall angle sensor 50. In order to ensure that the rotating electric machine 30 starts rotating when the ejector 21 is exposed to the outside of the housing 70, an ambient light sensor may be provided at the bottom of the ejector 21, and whether to control the rotating electric machine 30 to rotate may be determined based on the ambient light sensor state value at that time.
Second kind: single motor scheme
Referring to fig. 2, a torsion spring 40 is disposed between an upper outer end of the turret 12 and a lower end of the fixed base 90, and the torsion spring 40 is preloaded to maintain the turret 12 in a balanced position. The nut seat retainer ring 17 is placed on the inner side of the top of the revolving frame 12, the nut seat 16 stops rising when the nut seat retainer ring 17 is driven to rise by the driving piece 18 in the revolving frame 12, and then the driving piece 18 overcomes the torque generated by the torsion spring 40, so that the nut seat 16 and the revolving frame 12 can continue to rotate within 360 degrees, and the three-dimensional identification assembly 2 fixed with the nut seat 16 is driven to rotate. Further, the driving member 18 rotates reversely, the driving member 18 drives the screw rod 15 to apply reverse torque, the torsion spring 40 drives the turret 12 and the nut seat 16 to rotate reversely to the balance position, and then the nut seat 16 descends. The nut seat 16 thus forms an ascending-forward rotation-reverse rotation-descending action, with the push rod 19 and the ejection body 21, fixed together with the nut seat 16, forming a lifting and rotation mechanism accordingly.
It should be emphasized that the mechanism of lifting and rotating the ejector 21 needs to be performed under a strict logic control circuit of the system, otherwise the ejector 21 may be lifted or rotated at an improper time, which may cause structural damage. For this purpose, after the upper limit approach sensing switch 13 in the single motor scheme approaches the triggered shut-down driving member 18 due to the approach of the nut seat 16, the system is correspondingly controlled by the combinational logic control circuit. First, the system control command performs forced inversion on the current state of the upper limit proximity switch 13 in which the driving element 18 is turned off after being delayed for a preset time by the delay circuit, or performs forced inversion according to the state of the optional ambient light sensor at the bottom of the ejector 21, so that the driving element 18 can be started again to rotate against the pre-tightening force of the torsion spring 40. Then, after the system controls the driving member 18 to complete the equivalent reverse rotation, the driving member 18 is set to the off state (i.e., the state of the driving member 18 is restored to the state consistent with the state in which the upper limit proximity switch 13 turns off the driving member 18). At this time, the push rod 19 is turned from rotation to lifting, the upper limit proximity sensing switch 13 is turned off the driving member 18, the lower limit proximity sensing switch 14 is set to be movable by the system, and the resetting of the off state is convenient for the upper limit proximity sensing switch 13 and the lower limit proximity sensing switch 14 to realize state interlocking according to the forward and reverse rotation control signal, which is beneficial to the reliability of reciprocation during lifting of the push rod 19. The logic control circuit of this part is shown as the drive 18 switch control circuit of the lower left part of fig. 3. In addition, the system can control related circuits in the driving chip of the driving piece 18 through pulse control signals and forward/reverse control signals, so that the stepping progress and forward/reverse rotation of the driving piece 18 are effectively controlled, and the system is as shown in fig. 3 (the chip control saves space and occupies more than the chip control adopting a time relay and a linkage switch).
In the above-mentioned dual-motor driving scheme, the turret 12 may be fixed, the nut seat 16 may only move up and down, and not rotate left and right, while the turret 12 and the nut seat 16 in the single-motor driving scheme may rotate at the top of the lifting stroke, and this rotation may also rotate the push rod 19 fixed with the nut seat 16, so that the pop-up body 21 of the three-dimensional recognition assembly 2 fixed with the push rod 19 may also follow to rotate, thereby realizing the orientation change of the three-dimensional recognition assembly 2.
After the ejector 21 of the single motor scheme rotates, the angle sensor 50 can be arranged at the bottom of the ejector 21, the rotation is stopped when the angle sensor 50 which is positioned at the bottom of the ejector 21 and can sense the rotation of the push rod 19 reaches 360 degrees, then the rotation is reversely rotated back to 0 degree (the reverse value is negative), the rotation is also reversely rotated back to 0 degree when the rotation reaches the intermediate value of 0-360 degrees, the system counts the accumulated value of the angle sensor 50 at the bottom of the ejector 21, and the system reads the angle sensor 50 to be 0 degree to reversely rotate the action state of the upper limit proximity inductive switch 13 again (namely to return to the original action state of the upper limit proximity inductive switch 13 so as to be convenient for interlocking the states of the latch and the lower limit proximity inductive switch 14) and the control circuit of the driving piece 18 to be switched back to the reverse state so as to prepare for the reverse rotation of the driving piece 18. When the driver 18 is reversed to the lower limit approaching sensor switch 14, the state change due to the approaching of the nut seat 16 immediately triggers the electric push rod 19 to reverse the driver 18.
The single motor scheme and the two motor scheme control paths described above are shown in fig. 4.
As shown in fig. 4, an additional conventional RGB camera 24 may be added to the pop-up body 21 according to the application requirement, for example, a camera dedicated to the long focal length or the macro-distance function or the long focal length and macro-distance function, which is used to compensate for the performance deficiency of the multiple optical zoom camera 23, a camera with high definition resolution in the forward application, and so on.
When the ejector 21 is turned backward, the overall image capturing function combination effect of the tele+the wide+the depth+the main image capturing can be formed as shown in the right diagram of fig. 5. For each camera, the multi-time zoom camera is used for controlling the requirements of short focal length to realize close-range portrait self-shooting and the like in the forward direction, and is used for mainly controlling the requirements of long focal length to realize ideal long-range shooting in the backward direction; the wide-angle camera 25 can enlarge the view finding surface, so as to achieve a wider visual field and a macroscopic artistic effect; the depth camera 22 receives the infrared rays emitted to the scene before and reflected back, and then the system calculates the infrared round trip time difference to determine the depth of the scene, so that the stereoscopic recognition of the scene is realized; the main camera is dedicated to ultra-high precision, so that a user can obtain more perfect scene detail shooting experience. For the camera combination, at present, two cameras are usually combined for shooting, and most of the other three are respectively combined with a main camera, so that the complementation and enhancement of shooting effects are realized. The cameras on the ejector 21 are a depth camera 22 based on TOF technology located at the top and a multi-fold zoom camera located at the bottom. The depth camera 22 has an infrared emitter at the top and an infrared receiver (infrared camera) at the bottom. The multiple zoom camera adopts periscope type, the lower part of the periscope cavity is deep into the narrowed cylinder part of the lower part of the pop-up body 21.
According to another aspect of the present invention, there is also provided a mobile terminal including the housing 70 and the pop-up three-dimensional recognition device described above, the housing 70 being formed with a receiving slot, and the pop-up three-dimensional recognition device being telescopically mounted in the receiving slot. The mobile terminal may be a cell phone or tablet computer. The mobile terminal comprises all the technical schemes of the pop-up three-dimensional identification device, so that the pop-up three-dimensional identification device has at least all the beneficial effects brought by all the technical schemes, and the pop-up three-dimensional identification device is not described in detail herein. Waterproof and dustproof foam and a baffle plate 72 can be additionally arranged on the inner side of the shell 70, wherein an opening in the middle of the baffle plate 72 can accommodate the lifting of the ejector 21. The baffle 72 of fig. 2 can be made to be a structure with a relatively thick longitudinal thickness and the fixing base 90 as a whole, but normally, because the sinking space of the ejector 21 hidden in the fuselage is left, there is not enough lateral space for placing other cameras, so that the ejector 21 of the three-dimensional recognition component 2 and the cameras fixed at the rear part of the fuselage can only be arranged in a staggered manner, that is, in the state of fig. 1. However, when the thickness of the body of the mobile terminal is thick, if there is enough space between the sinking space of the ejector 21 of the shutter 72 and the laterally parallel body rear case, a rear camera (which may be fixed to the shutter 72 or the fixed base 90 or may be otherwise structurally fixed) such as the wide-angle camera 25 may be replaced. In this way, the pop-up body 21 of the three-dimensional recognition module 2 and the camera fixed at the rear part of the body do not need to be arranged in a staggered manner, and the mobile terminal can achieve the effects of fig. 7 and 8. The optical sensing device of fig. 8 also ensures that the space occupied by the motor of the turret 12 and the electric push rod 19 is not large, otherwise, the main camera and the flash 27 can only be arranged in a staggered manner as shown in fig. seven and fig. one. Fig. 1 can also be handled as in fig. 8, in the case of a small occupation of the lateral space of the motor or push rod 19 of the ejector 21. According to the embodiment, through the pop-up and rotatable three-dimensional identification component 2 comprising the two-dimensional and three-dimensional optical sensing devices, the three-dimensional or three-dimensional front camera function can be normally achieved under the condition that the whole screen on the front face of the mobile terminal is ensured, the three-dimensional identification component can be continuously applied to three-dimensional identification after rotating and changing the orientation, and particularly the comprehensive backward camera function of the multifunctional combination of a long focus, a wide angle, a depth and a main camera can be synchronously achieved.
In addition, the mobile terminal is further provided with a processor and a memory, the processor performs program operation by acquiring information of the limit proximity induction switch and the control circuit so as to ensure that the popping body pops up to a preset position which is the edge of the outer surface of the shell, then the rotating piece is started to rotate the popping body, and the rotating direction is adjusted according to the information of the angle sensor; after the popping body pops up and the direction is determined, the processor fuses the depth information and the color information into three-dimensional image information by calculating the depth information of the depth camera relative to the target object and acquiring the color information of the multi-time optical zoom camera relative to the target object, so that the three-dimensional identification of the target object is realized, and a running program of the processor is stored in a memory of the mobile terminal.
In the above technical solution of the present invention, the above is only a preferred embodiment of the present invention, and therefore, the patent scope of the present invention is not limited thereto, and all the equivalent structural changes made by the description of the present invention and the content of the accompanying drawings or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (8)
1. A pop-up three-dimensional identification device, comprising:
the pushing piece comprises a driving piece and a pushing rod, and the driving piece is used for driving the pushing rod to extend or retract;
the three-dimensional identification assembly comprises an ejecting body, a depth camera and a multiple optical zoom camera, wherein the depth camera and the multiple optical zoom camera are arranged on the ejecting body;
the rotating piece is connected with the push rod and the popping body and is used for driving the popping body to rotate so as to enable the depth camera and the multi-time optical zoom camera arranged on the popping body to rotate;
the pushing piece further comprises a coupler, a revolving frame, a limit proximity induction switch arranged on the revolving frame, a screw rod and a nut seat sleeved on the screw rod, wherein the push rod is connected with the nut seat, and the coupler is connected with the driving piece and the screw rod; the driving piece drives the screw rod to rotate through the coupler so as to drive the nut seat to lift, and then drives the three-dimensional identification component fixed on the push rod to lift;
the proximity inductive switch is used for sensing an upper limit state and a lower limit state of the telescopic push rod; the limit proximity sensing switch senses upper limit state information of the push rod and is used for controlling the ejecting body to eject to a preset position and then starting the rotating piece to drive the ejecting body to rotate;
the pop-up three-dimensional identification device further comprises a fixed base, wherein the fixed base is used for supporting the pop-up body in the push rod retraction state;
the rotating piece is a torsion spring, one end of the torsion spring is connected with the fixed base, and the other end of the torsion spring is connected with the revolving frame; and a nut seat retainer ring is arranged on the inner side of the top of the revolving frame, the nut seat stops rising when the nut seat retainer ring rises to the nut seat retainer ring along with the driving of the driving piece in the revolving frame, and then the driving piece overcomes the torque generated by the torsion spring, so that the nut seat and the revolving frame continue to rotate within 360 degrees, and the three-dimensional identification assembly fixed with the nut seat is driven to rotate.
2. The pop-up three-dimensional recognition device according to claim 1, wherein an angle sensor is arranged at the bottom of the pop-up body for sensing the rotation angle of the push rod;
the angle sensor is in signal connection with the driving piece and is used for adjusting the rotating direction of the ejecting body.
3. The pop-up three-dimensional recognition device of claim 2, further comprising a control circuit coupled to the driving member for controlling the driving member to rotate forward or backward.
4. The pop-up three-dimensional identification device according to claim 3, wherein the limit proximity switch comprises an upper limit proximity switch and a lower limit proximity switch, the upper limit proximity switch is arranged at the upper end of the turret, and the lower limit proximity switch is arranged at the lower end of the turret; the limit proximity sensing switch is a Hall sensing device, and the Hall sensing device is in signal connection with the control circuit.
5. The pop-up three-dimensional recognition device according to claim 1, wherein an ambient optical sensor is arranged at the bottom of the pop-up body, and the ambient optical sensor is used for performing auxiliary judgment on whether the pop-up body pops up to a preset position.
6. The pop-up three-dimensional recognition device according to claim 1, wherein the depth camera is used for acquiring depth information of a target object in multiple directions under the driving of the rotating piece; the multi-time optical zoom camera is used for acquiring color information of the target object in multiple directions under the driving of the rotating piece.
7. A mobile terminal comprising a housing and the pop-up three-dimensional identification device of any one of claims 1-6, the housing being formed with a receiving slot, the pop-up three-dimensional identification device being telescopically mounted within the receiving slot.
8. The mobile terminal of claim 7, further comprising a processor and a memory, wherein the processor performs a program operation by acquiring information of the limit proximity sensor switch and the control circuit to ensure that the ejector ejects to a preset position as an edge of the outer surface of the housing, and then starts the rotating member to rotate the ejector and adjusts a rotation direction according to the information of the angle sensor;
after the popping body pops up and the direction is determined, the processor fuses the depth information and the color information into three-dimensional image information by calculating the depth information of the depth camera about the target object and acquiring the color information of the multi-time optical zoom camera about the target object, so that the three-dimensional identification of the target object is realized;
the processor-executable program is stored in the memory of the mobile terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910824312.7A CN112532768B (en) | 2019-09-02 | 2019-09-02 | Pop-up three-dimensional identification device and mobile terminal |
| PCT/CN2020/099895 WO2021042854A1 (en) | 2019-09-02 | 2020-07-02 | Pop-up three-dimensional recognition device and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910824312.7A CN112532768B (en) | 2019-09-02 | 2019-09-02 | Pop-up three-dimensional identification device and mobile terminal |
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| CN112532768B true CN112532768B (en) | 2023-09-05 |
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| CN113843154B (en) * | 2021-09-08 | 2023-06-13 | 浙江华眼视觉科技有限公司 | Single-piece separating device based on RGBD camera |
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| CN207968579U (en) * | 2018-02-09 | 2018-10-12 | 广东欧珀移动通信有限公司 | Mobile terminal |
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| CN106094990A (en) * | 2016-06-12 | 2016-11-09 | 张帆 | The screen maximized electronic equipment of accounting and using method thereof |
| CN106899721A (en) * | 2017-04-28 | 2017-06-27 | 广东欧珀移动通信有限公司 | Electronic installation |
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| WO2021042854A1 (en) | 2021-03-11 |
| CN112532768A (en) | 2021-03-19 |
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