A cursoring mechanism and a device having a cursoring mechanism

Abstract

The application relates to a cursor calibration mechanism and a device with the same, which comprises a mounting base and a fixing base, and is characterized in that: during the movement of the calibration member and the light shielding assembly, if the receiving end of the light receiver corresponds to the light channel, the light source reflects the light signal to the light channel after passing through the calibration member, and the light receiver can collect the first light signal; if the receiving end of the light receiver intersects with the light channel, the light signal in the detection position is intercepted by the light shielding assembly, and the light receiver can only collect the dark noise light signal on the light shielding assembly; if the calibration member and the light shielding assembly move out of the detection position, the detection position is empty or is provided with fruits, and the receiving end of the light receiver can directly collect the second light signal reflected by the detection position or the fruits; the light signal is convenient to collect, the collected second light signal is compared with the first light signal and the dark noise light signal, the change of the light source energy can be calculated, the light energy is compensated, and the difference of the light energy is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fruit internal quality detection, and more particularly to a light calibration mechanism and a device with the same. BACKGROUND

[0002] With the improvement of living standards, consumers have higher requirements for fruit quality. Internal quality plays a leading role in fruit quality. Most of the existing methods for detecting the internal quality of fruits use non-invasive spectral detection methods, which are efficient and have low damage. The popular internal quality detection device on the market mostly irradiates light on the fruit, and then analyzes the internal quality of the fruit through a spectrometer. However, the existing internal quality detection device generally does not have a light calibration mechanism for collecting light signals. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a light calibration mechanism and a device with the same to solve the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present application to solve the technical problem is: a light calibration mechanism, comprising a detection position irradiated by a light source, and a light collector for collecting light signals from the detection position; the detection position is provided with a calibration member; a light shielding assembly is arranged between the light collector and the calibration member for intercepting light signals; the light shielding assembly is fixedly connected with the calibration member; the light shielding assembly is provided with a light channel for light signals to pass through; when the light source irradiates on the calibration member, the light signal is diffusely reflected towards the light collector; the light channel is located on the path of diffuse reflection of the calibration member; the light calibration mechanism further comprises a power assembly for driving the light shielding assembly and the calibration member to move simultaneously; the light shielding assembly and the calibration member have a plurality of movement states during movement, one of which is that the calibration member is located in the detection position, the receiving end of the light collector corresponds to the light channel, and the calibration member diffusely reflects light towards the light channel; the second movement state is that part of the calibration member is located in the detection position, and the receiving end of the light collector intersects with the light channel; the third movement state is that the detection position is empty or has a fruit placed therein, and the receiving end of the light collector directly collects the light signal reflected by the detection position or the fruit.

[0005] The light calibration mechanism disclosed in the present application, wherein the power assembly drives the light shielding assembly and the calibration member to rotate around the light collector.

[0006] The light calibration mechanism disclosed in the present application, wherein the power assembly drives the light shielding assembly and the calibration member to move close to or away from the connecting line of the light collector and the detection position.

[0007] The light cursor mechanism, wherein the light cursor mechanism further comprises a mounting base and a fixing base, the mounting base is fixedly connected with the fixing base through a connecting block; the light shielding assembly and the calibration element are movably arranged between the mounting base and the fixing base; the light shielding assembly is rotatably connected with the mounting base through a first rotary bearing; the light receiver is fixedly arranged on the mounting base; the fixing base is provided with the power assembly for driving the light shielding assembly to rotate.

[0008] The light cursor mechanism, wherein the power assembly comprises a connecting arm and a driving motor for driving the connecting arm to rotate; one end of the connecting arm is fixedly connected with an output end of the driving motor, and the other end is rotatably connected with the light shielding assembly through a second rotary bearing.

[0009] The light cursor mechanism, wherein the central axis of the first rotary bearing and the central axis of the second rotary bearing are located on the same line.

[0010] The light cursor mechanism, wherein the light shielding assembly comprises a swing arm and a light shielding plate fixedly connected with the swing arm; the light channel is located on the light shielding plate; the swing arm is fixedly provided with a connecting piece rotatably connected with the first rotary bearing on one side facing the mounting base, and is provided with a fixing hole for fixing the second rotary bearing on one side facing the fixing base.

[0011] The light cursor mechanism, wherein one side of the swing arm is provided with a limiting groove extending inward and for inserting the connecting block.

[0012] The light cursor mechanism, wherein the swing arm is in a fan-shaped structure.

[0013] The application further provides a device with the light cursor mechanism, wherein the device is provided with a spectrometer and the above-mentioned light cursor mechanism; an output end of the light receiver in the light cursor mechanism is connected with the spectrometer through a transmission line.

[0014] The beneficial effects of the present application are that the light calibration mechanism is simple in structure and ingenious in design, the light blocking assembly is arranged between the light collector and the calibration piece to intercept light signals, the light source produces diffuse reflection on the calibration piece, when in use, the calibration piece and the light blocking assembly are simultaneously moved to the detection position by the power assembly, so that the light collector can collect a plurality of light signals of different degrees, in the movement of the calibration piece and the light blocking assembly, if the calibration piece moves into the detection position, the receiving end of the light collector corresponds to the light channel, the light source emits light signals to the light channel after diffuse reflection by the calibration piece, at this time, the light collector can collect the first light signal, i.e., the reference light signal, of the light channel, if the calibration piece moves partially into the detection position, the receiving end of the light collector intersects the light channel, the light signal in the detection position is intercepted by the light blocking assembly, the light collector cannot collect the light signal of the detection position, and can only collect the dark noise light signal, i.e., the environmental light signal, on the light blocking assembly, if the calibration piece and the light blocking assembly move out of the detection position, the detection position is empty or placed with fruits, the receiving end of the light collector can directly collect the second light signal, i.e., the detection light signal, reflected by the detection position or the fruits, the light signal is convenient to collect, and the second light signal collected is compared with the first light signal and the dark noise light signal, so that the change of the light source energy can be calculated, and the light energy is compensated, and the difference of the light energy is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor:

[0016] Figure 1 is a structure diagram of a light calibration mechanism according to a preferred embodiment of the present application Figure 1 ;

[0017] Figure 2 is a structure diagram of a light calibration mechanism according to a preferred embodiment of the present application Figure 2 ;

[0018] Figure 3 is a structure diagram of a light calibration mechanism according to a preferred embodiment of the present application Figure 3 (moving state one of the light calibration mechanism);

[0019] Figure 4 is a structure diagram of a light calibration mechanism according to a preferred embodiment of the present application Figure 4 (moving state two of the light calibration mechanism);

[0020] Figure 5 is a structure diagram of a light calibration mechanism according to a preferred embodiment of the present application Figure 5Figure 3 is a motion state diagram of a light calibration mechanism (the light blocking assembly and the calibration member move longitudinally between the light collector and the detection position) according to another preferred embodiment of the present application.

[0021] Figure 6 Figure 4 is a motion state diagram of a light calibration mechanism (the light blocking assembly and the calibration member move transversely between the light collector and the detection position) according to another preferred embodiment of the present application.

[0022] Figure 7 Figure 5 is a motion state diagram of a light calibration mechanism (the light blocking assembly and the calibration member move transversely between the light collector and the detection position) according to another preferred embodiment of the present application. DETAILED DESCRIPTION

[0023] The terms "first", "second", "third", and "fourth" and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the descriptive terms used herein are to be interpreted in the context as exercised by those of ordinary skill in the art. Furthermore, the terms "comprise", "have", "contain" and "include" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that comprises a list of steps or elements is not necessarily limited to the steps or elements listed, but can include additional steps or elements not expressly listed or inherent to such process, method, system, product or apparatus.

[0024] Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a common embodiment. It is expressly understood that any of the features, structures, or characteristics described in connection with an embodiment can be included in at least one implementation of the application.

[0025] "Plural" means two or more. "And / or" describes associating objects in association, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship.

[0026] Furthermore, the terms "front, back, left, right, upper end, lower end, longitudinal direction" and the like indicating the position are all based on the attitude position of the device described in the present application during normal use.

[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the protection scope of the present application.

[0028] Example 1

[0029] This invention provides a cursor positioning mechanism, such as... Figures 1-5 As shown, the device includes a detection position 10 illuminated by a light source and a receiver 11 that collects light signals from the detection position 10. It is worth noting that the detection position is a space illuminated by a light source, in which fruit or other items to be detected by light can be placed. A calibration element 12 is provided on the detection position 10. A light-blocking component 13 is provided between the receiver 11 and the calibration element 12 to intercept the light signal. The light-blocking component 13 is fixedly connected to the calibration element 12. A light channel 131 for the light signal to pass through is provided on the light-blocking component 13. It is worth noting that the light channel 131 can be aperture-shaped, slot-shaped, or other shapes for the light signal to pass through as used in the prior art; all of these fall within the scope of protection of this invention. When the light source illuminates the calibration element 12, the light signal is diffusely reflected towards the receiver 11, and optical calibration can be performed through the diffuse reflection of the calibration element. Measurement; the optical channel 131 is located on the path of diffuse reflection of the calibration element 12; the calibration mechanism also includes a power component 14 that drives the light-shielding component 13 and the calibration element 12 to move simultaneously; the light-shielding component 13 and the calibration element 12 have multiple movement states during the movement process. One movement state is: the calibration element 12 is located in the detection position 10, the receiving end of the light receiver 11 corresponds to the optical channel 131, and the calibration element 12 diffusely reflects light towards the optical channel 131, so that the light receiver can successfully collect the light signal in the optical channel 131; the second movement state is: the calibration element 12 is located in the detection position 10, and the receiving end of the light receiver 11 intersects with the optical channel 131; the third movement state is: the detection position 10 is empty or has fruit placed on it, and the receiving end of the light receiver 11 directly collects the light signal reflected by the detection position 10 or the fruit.

[0030] This calibration mechanism has a simple structure and ingenious design. A light-blocking component is installed between the receiver and the calibration element to intercept light signals. When the light source shines on the calibration element, diffuse reflection occurs. In use, a power component drives the calibration element and the light-blocking component to move simultaneously at the detection position, thus facilitating the receiver to collect light signals of varying intensity. The calibration element and the light-blocking component exhibit multiple movement states during their movement, as detailed below:

[0031] The first movement state of the calibration mechanism: the calibration piece moves into the detection position, and at the same time, the receiving end of the receiver corresponds to the optical channel. After the light source is diffusely reflected by the calibration piece, it emits a light signal towards the optical channel. At this time, the receiver can collect the first light signal passing through the optical channel, that is, the reference light signal.

[0032] The second movement state of the calibration mechanism: part of the calibration component moves into the detection position, and the receiving end of the receiver intersects with the optical channel. The optical signal in the detection position is blocked by the light-shielding component, and the receiver cannot collect the optical signal of the detection position. It can only collect the dark noise optical signal on the light-shielding component.

[0033] The third movement state of the calibration mechanism: the calibration component and the light-shielding assembly move out of the detection position, the detection position is empty or has fruit placed on it, the receiver of the light receiver can directly collect the second light signal reflected by the detection position or the fruit, that is, the detection light signal; the light signal is easy to collect, and then by comparing the collected second light signal with the first light signal and the dark noise light signal respectively, the change of light source energy can be calculated, and then the light energy can be compensated to reduce the difference of light energy.

[0034] Preferably, the power assembly 14 drives the light-shielding assembly 13 and the calibration component 12 to rotate around the light receiver 11; such as Figures 1-2 As shown, the calibration mechanism also includes a mounting base 15 and a fixed base 16, which are fixedly connected by a connecting block 17. A light-shielding assembly 13 and a calibration component 12 are movably disposed between the mounting base 15 and the fixed base 16. The light-shielding assembly 13 is rotatably connected to the mounting base 15 via a first rotating bearing 18. A light receiver 11 is fixedly disposed on the mounting base 15. The fixed base 16 is provided with a power assembly 14 that drives the light-shielding assembly 13 to rotate on the left and right sides of the connecting block. When the power assembly drives the light-shielding assembly and calibration component to move directly below the light receiver, the receiving end of the light receiver corresponds to the optical channel of the light-shielding assembly. After the light shines on the calibration component, it diffusely reflects a light signal towards the light receiver. At this time, the light receiver collects the first light signal. When the power assembly drives the light-shielding assembly and calibration component to deflect around the light receiver, the receiving end of the light receiver intersects with the optical channel on the light-shielding assembly, and the light receiver cannot collect the light signal of the detection position, but can only collect the light signal of the detection position. The light signal is collected from the dark noise on the light-shielding plate. When the power component drives the light-shielding component and the calibration component to completely move out of the detection position, the receiving end of the receiver can directly collect the light signal at the detection position, which is convenient. The light-shielding component and the calibration component rotate around the receiver 11 through the cooperation of the power component and the first rotating bearing. Furthermore, the power component 14 includes a connecting arm 141 and a drive motor 142 that drives the connecting arm 141 to rotate. One end of the connecting arm 141 is fixedly connected to the output end of the drive motor 142, and the other end is rotatably connected to the light-shielding component 13 through the second rotating bearing 19. During adjustment, the drive motor drives the connecting arm to rotate, thereby driving the light-shielding component to rotate around the first rotating bearing as the axis. The transmission performance is good and the structure is stable. It is worth noting that the power component can also adopt other structures in the prior art that drive the light-shielding component and the calibration component to rotate around the receiver. All of the above are within the protection scope of this invention.

[0035] Preferably, the central axis of the first rotating bearing 18 is in line with the central axis of the second rotating bearing 19, so that the power assembly can drive the light shielding plate to rotate more quickly and more easily.

[0036] Preferably, the light shielding assembly 13 comprises a swing arm 132 and a light shielding plate 133 fixedly connected with the swing arm 132, the light channel 131 is located on the light shielding plate 133, the swing arm 132 is fixedly installed with a connecting piece 20 rotatably connected with the first rotating bearing 18 on the side facing the mounting base 15, and a fixing hole 134 for fixing the second rotating bearing 19 is arranged on the side facing the fixed base 16, further, a limiting slot 135 extending inward and allowing the connecting block 17 to be inserted is arranged on one side of the swing arm 132, so that the rotation angle of the swing arm is increased, and the light collector can collect more light signals from the detection position, and preferably, the swing arm 132 has a fan-shaped structure.

[0037] It is worth noting that in another embodiment, the power assembly drives the light shielding assembly and the calibration piece to approach or deviate from the connecting line between the light collector and the detection position, and the power assembly comprises a linear motor arranged on one side of the detection position, as shown in Figure 6 When the light collector 11 and the detection position 10 are arranged transversely, the linear motor (not shown in the figure) drives the light shielding assembly and the calibration piece to move longitudinally between the light collector and the detection position, as shown in Figure 7 When the light collector 11 and the detection position 10 are arranged longitudinally, the linear motor (not shown in the figure) drives the light shielding assembly and the calibration piece to move transversely between the light collector and the detection position, so that the light collector can collect multiple light signals; the above technical solutions of the position relationship between the light collector and the detection position and the power assembly driving the light shielding assembly and the calibration piece to approach or deviate from the connecting line between the light collector and the detection position all belong to the protection scope of the present application.

[0038] Example 2

[0039] The present application provides a device with a light calibration mechanism, wherein a spectrometer and the light calibration mechanism are arranged in the device, the output end of the light collector in the light calibration mechanism is connected with the spectrometer through a transmission line, the light calibration mechanism collects multiple light signals with different energies and transmits them to the spectrometer, the spectrometer compares and analyzes the multiple light signals to calculate the difference between the light signals, and compensates the light signals according to the difference, so that the light energy is in a stable state, and the internal quality of the fruit can be measured more accurately.

[0040] It is to be understood that all such modifications and variations that can occur to those skilled in the art in the light of the foregoing description are to be considered within the scope of the application as defined in the claims appended hereto.

Claims

1. A cursor positioning mechanism characterized by, The device comprises a detection position irradiated by a light source, and a light receiver for collecting light signals from the detection position; the detection position is provided with a calibration element; a light blocking assembly is arranged between the light receiver and the calibration element to intercept light signals; the light blocking assembly is fixedly connected with the calibration element; the light blocking assembly is provided with a light channel for light signals to pass through; when the light source irradiates on the calibration element, the light signals are diffusely reflected towards the light receiver; the light channel is located on the path of the diffusely reflected light signals; the light calibration mechanism further comprises a power assembly for moving the light blocking assembly and the calibration element simultaneously; the light blocking assembly and the calibration element have multiple movement states; in one movement state, the calibration element is located in the detection position, the receiving end of the light receiver corresponds to the light channel, and the calibration element diffusely reflects light towards the light channel; in the second movement state, part of the calibration element is located in the detection position, and the receiving end of the light receiver intersects with the light channel; in the third movement state, the detection position is empty or placed with fruits, and the receiving end of the light receiver directly collects the reflected light signals of the detection position or the fruits; The power assembly drives the light blocking assembly and the calibration element to rotate around the light receiver; The light calibration mechanism further comprises a mounting seat and a fixed seat, the mounting seat and the fixed seat are fixedly connected through a connecting block; the light blocking assembly and the calibration element are movably arranged between the mounting seat and the fixed seat; the light blocking assembly is rotatably connected with the mounting seat through a first rotating bearing; the light receiver is fixedly arranged on the mounting seat; the fixed seat is provided with the power assembly for driving the light blocking assembly to rotate.

2. The optical aiming mechanism of claim 1, wherein, The power assembly drives the light blocking assembly and the calibration element to move towards or away from the connecting line between the light receiver and the detection position.

3. The optical aiming mechanism of claim 1, wherein, The power assembly comprises a connecting arm and a driving motor for driving the connecting arm to rotate; one end of the connecting arm is fixedly connected with the output end of the driving motor, and the other end is rotatably connected with the light blocking assembly through a second rotating bearing.

4. The optical aiming mechanism of claim 3, wherein, The central axis of the first rotating bearing and the central axis of the second rotating bearing are located on the same straight line.

5. The optical aiming mechanism of claim 4, wherein, The light blocking assembly comprises a swing arm and a light blocking plate fixedly connected with the swing arm; the light channel is located on the light blocking plate; the swing arm is fixedly provided with a connecting piece rotatably connected with the first rotating bearing on the side facing the mounting seat, and is provided with a fixing hole for fixing the second rotating bearing on the side facing the fixed seat.

6. The optical aiming mechanism of claim 5, wherein, The swing arm is provided with a limiting groove extending inward and for inserting the connecting block.

7. The optical aiming mechanism of claim 5, wherein, The swing arm has a fan-shaped structure.

8. A device having a cursoring mechanism, characterized by The device is provided with a spectrometer and the light calibration mechanism according to any one of claims 1-7; the output end of the light receiver in the light calibration mechanism is connected with the spectrometer through a transmission line.

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