WO2020168547A1 - 一种纸张数量检测方法及纸张数量检测装置 - Google Patents
一种纸张数量检测方法及纸张数量检测装置 Download PDFInfo
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- WO2020168547A1 WO2020168547A1 PCT/CN2019/075848 CN2019075848W WO2020168547A1 WO 2020168547 A1 WO2020168547 A1 WO 2020168547A1 CN 2019075848 W CN2019075848 W CN 2019075848W WO 2020168547 A1 WO2020168547 A1 WO 2020168547A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M7/00—Counting of objects carried by a conveyor
- G06M7/02—Counting of objects carried by a conveyor wherein objects ahead of the sensing element are separated to produce a distinct gap between successive objects
- G06M7/06—Counting of flat articles, e.g. of sheets of paper
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- the invention relates to the technical field of paper quantity detection, in particular to a paper quantity detection method and a paper quantity detection device.
- the number of papers is detected by camera photo analysis, the number of papers is detected by ultrasonic detection of paper density and thickness, and the number of papers is detected by rolling counting.
- the existing detection methods still have shortcomings in specific applications, which are specifically reflected as follows: 1) In the method, the number of sheets is detected by camera photo analysis. This detection method has high system cost and high calculation capacity requirements; 2) In the method, the number of sheets is detected by ultrasonic detection of paper density and thickness. This detection method has a high system cost, and the density differences of different materials of paper lead to deviations in the test results; 3) The number of sheets is detected by rolling counting in the method. This detection method cannot be statically detected, and the application scenarios are limited.
- the purpose of the present invention is to provide a paper quantity detection method and paper quantity detection device.
- the measurement process is not affected by the material of the paper or other parts, and is not interfered by electrical signals, and the measurement is stable.
- a method for detecting the number of sheets including the following steps:
- the emitted light is red light (infrared light) or green light or blue light or ultraviolet light.
- stacking a plurality of papers on the support and the stacked paper set has a step part specifically includes: stacking multiple papers on the support and the stacked paper set has a stepped through hole or a stepped edge.
- calculating the number of sheets according to the light received by the light receiver specifically includes: according to the formula
- T refers to the total luminous flux emitted by the light emitter
- T i refers to the luminous flux transmitted through the paper from the light emitter received by the light receiver after page i is turned;
- R i refers to the luminous flux reflected by the paper after the light emitter received by the light receiver illuminates the paper after turning page i;
- n is the total number of pages of paper, n i refers to the number of papers reduced after turning the i-th page;
- N refers to the number of papers remaining after the number of papers is reduced after the i-th page is turned.
- the present invention also provides a paper quantity detection device, the paper quantity detection device is used to realize the paper quantity detection method as described above, and the paper quantity detection device includes a support for placing papers and is used to face the A light emitter for emitting light from the paper, a light receiver for receiving light, and a processor for calculating the number of papers based on the luminous flux of the light received by the light receiver.
- the present invention has the following beneficial effects:
- the processor can calculate the number of output papers by the number of light received by the optical receiver.
- the optical transmitter and the optical receiver are not in the measurement process. Affected by the material of paper or other parts, and not interfered by electrical signals, its measurement is stable and can be widely promoted.
- FIG. 1 is a flowchart of a method for detecting the number of sheets provided by an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a view angle of the paper placed on the paper quantity detecting device in the first embodiment of the paper quantity detecting method of the present invention
- FIG. 3 is a schematic structural view of another view of the paper quantity detection device after the paper is placed on the paper quantity detection device after removing the shielding member and the light path blocking structure in the first embodiment of the paper quantity detection method of the present invention
- FIG. 4 is a schematic structural diagram of the paper placed on the paper quantity detecting device in the second embodiment of the paper quantity detecting method of the present invention.
- FIG. 5 is a schematic structural diagram of the paper quantity detection device in the second embodiment of the paper quantity detection method of the present invention, the paper is placed on the paper quantity detection device after removing the bracket, the shielding member and the light receiver;
- FIG. 6 is a schematic structural diagram of the paper placed on the paper quantity detecting device in the third embodiment of the paper quantity detecting method of the present invention.
- FIG. 7 is a schematic structural diagram of the paper quantity detection device in the third embodiment of the paper quantity detection method of the present invention, the paper is placed on the paper quantity detection device after removing the bracket, the shielding member and the light emitter;
- FIG. 8 is a schematic structural diagram of the paper placed on the paper quantity detection device in the fourth embodiment of the paper quantity detection method of the present invention.
- FIG. 9 is a schematic structural diagram of the paper quantity detection device in the fourth embodiment of the paper quantity detection method of the present invention, the paper is placed on the paper quantity detection device after removing the bracket, the shielding member and the light emitter;
- FIG. 10 is a schematic structural diagram of a perspective view of the paper placed on the paper quantity detection device in the fifth embodiment of the paper quantity detection method of the present invention.
- FIG. 11 is a schematic structural view of another view of the paper quantity detection device after the paper is placed on the paper quantity detection device after removing the shielding member and the light path blocking structure in the fifth embodiment of the paper quantity detection method of the present invention
- FIG. 12 is a schematic structural diagram of the paper placed on the paper quantity detecting device in the sixth embodiment of the paper quantity detecting method of the present invention.
- FIG. 13 is a schematic structural diagram of the paper quantity detection device in the sixth embodiment of the paper quantity detection method of the present invention, the paper is placed on the paper quantity detection device after removing the bracket, the shielding member and the light receiver;
- FIG. 14 is a schematic diagram of the connection of the electronic control element in the paper quantity detection device provided by the embodiment of the present invention.
- Support 11. Base; 12. Support; 121. Vertical support arm; 122. Transverse support arm; 20. Optical sensor; 21. Optical transmitter; 22. Optical receiver; 30. Paper; 31. Open Hole; 40. Processor; 50. Shield; 60. Light path blocking structure; 61. Protective cover; 62. Mirror.
- a method for detecting the number of sheets includes the following steps:
- stacking a plurality of papers 30 on the support 10 and the stacked paper stack has a stepped portion
- stacking the multiple papers 30 on the support 10 and the stacked paper stack has a stepped portion specifically includes: 30 is stacked on the support 10 and the stacked paper set has a stepped through hole or a stepped edge. It is understandable that the stacking of multiple papers 30 on the support 10 includes: pre-stacking the papers and then placing them on the support, or directly stacking the papers 30 on the support 10.
- a plurality of papers 30 with different sizes of openings 31 are stacked and placed on the support 10 in such a way that the sizes of the openings 31 are successively increased or decreased, or the plurality of papers 30 are stepped on one side. It is placed on the support 10 sequentially in a staggered or inverted stepwise manner, and a jig can be used in the specific process of placing the paper 30;
- the light emitter 21 is used to emit light toward the stepped portion along the direction in which the paper 30 is stacked. Specifically, the light emitter 21 is used to face the opening 31 of the paper 30 or the stepped form of the paper 30 in a manner perpendicular to the stacking direction of the paper 30 The light is emitted at the edge or the inverted stepped edge of the paper 30.
- the light receiver 22 is used to receive the emitted light. Specifically, the light receiver 22 is used to receive the light reflected by the paper 30 and the light emitted by the light emitter 21, or the light receiver 22 is used to receive the light emitted by the light emitter 21 and pass through the paper 30. Light.
- the processor 40 collects the luminous flux formed by the light on the light transmitter 21 and the light on the light receiver 22.
- the formed luminous flux is calculated by calculating the number of output papers 30.
- the light emitter 21 and the light receiver 22 are collectively referred to as the optical sensor 20. Since external natural light enters the area of the optical sensor 20, the detection of luminous flux will be affected.
- Light of a specific wavelength may be selected as the emitted light.
- the emitted light is light of a specific wavelength, and the emitted light may be red light (infrared light) or green light or blue light or ultraviolet light.
- the core of the method for detecting the number of sheets of paper is to use the optical sensor 20 and the processor 40 to detect the change of light flux to determine the number of sheets 30.
- the light emitter 21 emits light to the paper 30, and the light passes through the steps of the paper 30, and part of the light is blocked.
- the light receiver 22 receives the light reflected by the paper 30 and the light emitted by the light emitter 21; or the light passes through the paper 30, The direct transmission reaches the light receiver 22 for receiving the transmitted light.
- the processor 40 detects the change in the luminous flux, and converts the number of the paper 30 through the change in the luminous flux.
- calculating the number of sheets 30 according to the light received by the light receiver 22 specifically includes: according to the formula or Calculate the number of remaining paper 30;
- T refers to the total luminous flux emitted by the light emitter 21
- R refers to the total light emitter the light emitted from the flipping state of not irradiated with the light flux 21 reflected from the paper 30 after;
- T i refers to the luminous flux transmitted through the paper 30 from the light emitter 21 received by the light receiver 22 after page i is turned;
- R i refers to the luminous flux reflected by the paper 30 after the light emitter 21 received by the light receiver 22 illuminates the paper 30 after page i is turned;
- n is the total number of pages of paper 30, n i refers to the number of paper 30 reduced after turning the i-th page;
- N refers to the number of papers 30 remaining after the number of papers 30 is reduced after the i-th page is turned.
- step S103 when step S103 is to use the light receiver 22 to receive the light irradiated by the paper 30 reflected by the light emitter 21, the number of paper 30 passes the formula Calculation output, formula It is derived based on the following formula:
- step S103 when step S103 is to use the light receiver 22 to receive the light emitted by the light transmitter 21 and passing through the opening of the paper 30, the number of the paper 30 is determined by the formula Calculation output, formula It is derived based on the following formula:
- the present invention provides six specific implementations of paper quantity detection methods, which are specifically as follows:
- stacking a plurality of papers 30 on the support 10 and the stacked paper set has a stepped part specifically includes: placing a plurality of papers 30 with different openings 31 sizes from the top. It is stacked and placed on the support 10 in a manner of increasing downwards, wherein the size of the opening 31 is larger the closer to the light emitter 21; the light emitter 21 is used to emit light toward the stepped portion along the direction in which the paper 30 is stacked Specifically: the light emitter 21 emits light from the bottom of the paper 30 toward the opening 31 of the paper 30, and the light is blocked after encountering the paper 30; the light receiver 22 receiving the emitted light specifically includes: The bottom of the paper 30 receives the light reflected by the paper 30 after the light emitter 21 is emitted to the paper 30.
- the light path blocking structure 60 provided above the paper 30 can prevent external light from entering the detection area of the optical sensor 20 and affecting the detection result. It is provided in the protective cover 61 at the position corresponding to the opening 31 A reflector 62, using the reflector 62 to reflect the light passing through the opening 31 of the paper 30 to the inner side wall of the protective cover 61, thereby preventing the light passing through the opening 31 of the paper 30 from being reflected by the protective cover 61 Back to the light receiver 22.
- the support 10 includes a base 11, a shielding member 50, and a light path blocking structure 60 for blocking light.
- the light transmitter 21 is mounted on the base 11, and the light receiver 22 is also mounted on the base 11 and interacts with the light emitter.
- the light path blocking structure 60 includes a vertical arm 121 connected with the base 11, a protective cover 61 connected with the vertical arm 121 and spaced above the base 11, and a protective cover 61 arranged in the protective cover 61 and arranged in an inclined manner.
- the shielding member 50 is connected to the bottom of the protective cover 61, in specific use, the shielding member 50 will abut on the paper 30 and exert a squeezing force on the paper 30; when the number of papers 30 is reduced, the shielding member 50
- the paper 30 can be stretched along the stacking direction to maintain the contact with the paper 30 and ensure that external light cannot enter the opening 31 from the side of the shielding member 50.
- the shielding member 50 may be a spring or other elastic member.
- stacking a plurality of papers 30 on the support 10 and the stacked paper set has a stepped part, specifically including: multiple papers 30 with different openings 31 sizes from the opening 31 size It is stacked and placed on the support 10 in a manner of increasing from top to bottom, wherein the size of the opening 31 at one end closer to the light emitter 21 is larger.
- Using the light emitter 21 to emit light toward the steps along the direction in which the paper 30 is stacked specifically includes: the light emitter 21 emits light from below the paper 30 toward the opening 31 of the paper 30, and the light is blocked after encountering the paper 30
- the light receiver 22 is located at the other end of the paper 30, and part of the light follows the opening 31 directly onto the light receiver 22.
- the light receiver 22 detects the light emitted by the light transmitter 21 through the opening 31 of the paper 30.
- the use of the light receiver 22 to receive the emitted light specifically includes: the light receiver 22 receives the light emitted by the light emitter 21 from above the paper 30 and passes through the opening 31 on the paper 30.
- the paper 30 receives the light emitted by the light emitter 21 from above the paper 30 and passes through the opening 31 on the paper 30.
- the processor 40 can convert the change in the number of papers 30 by changing the light flux.
- the support base 10 includes a base 11, a support 12, and the aforementioned shield 50.
- the support 12 includes a vertical arm 121 connected to the base 11 and a vertical arm 121 connected to the vertical arm 121 and spaced above the base 11 ,
- the shield 50 is connected to the bottom of the lateral support arm 122.
- the light transmitter 21 is installed on the base 11, and the light receiver 22 is installed on the lateral support arm 122 and arranged in alignment with the light transmitter 21.
- stacking a plurality of papers 30 on the support 10 and the stacked paper set has a stepped part specifically includes: placing a plurality of papers 30 with different openings 31 sizes from the top.
- the paper 30 is stacked on the support 10 in a downwardly increasing manner, and the opening 31 of the paper 30 is larger on the side closer to the light receiver 22; the light emitter 21 is used to face the stepped portion along the direction in which the paper 30 is stacked
- the emitted light specifically includes: the light transmitter 21 emits light from above the paper 30 toward the paper 30, the light is blocked after encountering the paper 30, and part of the light reaches the light receiver 22 along the opening 31; the light receiver 22 is used to receive
- the emitted light specifically includes: the light receiver 22 receives the light emitted by the light emitter 21 from below the paper 30 and passes through the opening 31 on the paper 30.
- the support 10 includes a base 11, a support 12, and a shield 50.
- the support 12 includes a vertical support arm 121 connected to the base 11 and a horizontal support connected to the vertical support arm 121 and spaced above the base 11.
- the arm 122 and the shield 50 are connected to the bottom of the lateral support arm 122.
- the light transmitter 21 is installed on the lateral support arm 122 and the light receiver 22 is installed on the base 11.
- stacking a plurality of papers 30 on the support 10 and the stacked paper set has a stepped part specifically includes: placing the multiple papers 30 on the support in an inverted stepped manner with one side edge.
- the light is blocked after encountering the paper 30; using the light emitter 21 to emit light toward the step along the direction in which the paper 30 is stacked includes: the light emitter 21 emits light from below the paper 30 toward the paper 30
- the use of the light receiver 22 to receive the emitted light specifically includes: the light receiver 22 receives the luminous flux formed by the light emitted by the light emitter 21 from above the paper 30 and passes through the paper 30.
- the processor The luminous flux on 40 increases, and the processor 40 can convert the number of sheets 30 through the change in luminous flux.
- the support 10 includes a base 11, a support 12, and a shield 50.
- the support 12 includes a vertical support arm 121 connected to the base 11 and a horizontal support connected to the vertical support arm 121 and spaced above the base 11.
- the arm 122 and the shield 50 are connected to the bottom of the lateral support arm 122.
- the light transmitter 21 is mounted on the base 11, and the light receiver 22 is mounted on the lateral arm 122.
- the vertical arm 121 will also block external light Therefore, no external light enters from the position not covered by the shield 50.
- stacking a plurality of papers 30 on the support 10 and the stacked paper set has a stepped part specifically includes: placing the multiple papers 30 on the support with one side edge in an inverted stepwise manner.
- the seat 10; the use of a light emitter 21 to emit light toward the stepped portion along the direction in which the paper 30 is stacked includes: the light emitter 21 emits light from below the paper 30 toward the paper 30, and the light is blocked after encountering the paper 30
- the use of the light receiver 22 to receive the emitted light specifically includes: the light receiver 22 receives the luminous flux formed by the reflected light after the light emitter 21 is emitted to the paper 30 from below the paper 30, and when the number of paper 30 is reduced, processing The luminous flux on the sensor 40 is reduced, and the processor 40 can convert the quantity of the paper 30 by changing the luminous flux.
- the light path blocking structure 60 arranged above the paper 30 can prevent external light from entering the detection area of the optical sensor 20 and affecting the detection result.
- the support base 10 includes a base 11, a shield 50, and a light path blocking structure 60 for blocking light.
- the light transmitter 21 and the light receiver 22 are both installed on the base 11, and the light path blocking structure 60 includes a connection with the base 11.
- the vertical arm 121 is connected to the vertical arm 121 and is spaced apart from the base 11 above the protective cover 61, the reflector 62 is arranged in the protective cover 61 and is inclinedly arranged, the shield 50 and the bottom of the protective cover 61 connection.
- stacking a plurality of papers 30 on the support 10 and the stacked paper set has a stepped part specifically includes: placing the multiple papers 30 on the support in an inverted stepwise manner with one side edge.
- the seat 10; the use of a light emitter 21 to emit light toward the stepped portion along the direction in which the paper 30 is stacked includes: the light emitter 21 emits light from above the paper 30 toward the paper 30, and the light is blocked after encountering the paper 30
- the use of the light receiver 22 to receive the emitted light specifically includes: the light receiver 22 receives the luminous flux formed by the light emitted by the light emitter 21 from below the paper 30 and passes through the paper 30.
- the processor The luminous flux on 40 increases, and the processor 40 can convert the number of sheets 30 through the change in luminous flux.
- the support 10 includes a base 11, a support 12, and a shield 50.
- the support 12 includes a vertical support arm 121 connected to the base 11 and a horizontal support connected to the vertical support arm 121 and spaced above the base 11.
- the arm 122 and the shield 50 are connected to the bottom of the lateral support arm 122.
- the light transmitter 21 is installed on the lateral support arm 122 and the light receiver 22 is installed on the base 11.
- the present invention also provides a paper quantity detection device.
- the paper quantity detection device is used to implement the above-mentioned paper quantity detection method.
- the paper quantity detection device includes a support 10 for placing the paper 30 and a device for emitting light toward the paper 30.
- the light transmitter 21, the light receiver 22 for receiving light, and the processor 40 for collecting the luminous flux of the light receiver 22 to calculate the number of output paper 30, the light transmitter 21, the light receiver 22 and the processor 40 are all installed On the support 10, the light transmitter 21, the light receiver 22 and the processor 40 are all integrated on the support 10 with a smaller volume.
- the paper quantity detection device has the following three embodiments,
- the support 10 includes a base 11, a shield 50, and a light path blocking structure 60 for blocking light.
- the light emitter 21 and the light receiver 22 are arranged side by side on the base 11, and The distance from the top surface of the light transmitter 21 and the light receiver 22 to the bottom surface of the base 11 is less than or equal to the distance from the top surface of the base 11 to the bottom surface of the base 11 to prevent the paper 30 from being unevenly placed on the base 11, thereby affecting the processor 40
- the light path blocking structure 60 includes a vertical arm 121 connected to the base 11, a protective cover 61 connected to the vertical arm 121 and spaced above the base 11, and a protective cover 61 disposed in the protective cover 61 and arranged obliquely
- the reflector 62 and the protective cover 61 are made of opaque material.
- the reflector 62 can turn the light by 90 degrees to prevent the light transmitted through the opening 31 from being reflected back vertically and affecting the change of luminous flux.
- the shield 50 and the protective cover The bottom of 61 is connected, and the shield 50 is a ring-shaped body made of shielding material.
- the support 10 includes a base 11, a support 12, and a shield 50.
- the support 12 includes a vertical arm 121 connected to the base 11 and a vertical arm 121 connected and spaced apart from each other.
- the horizontal support arm 122 provided above the base 11 and the shield 50 are connected to the bottom of the horizontal support arm 122.
- the light emitter 21 is installed on the base 11, the distance from the top surface of the light emitter 21 to the bottom surface of the base 11 is less than or equal to the distance from the top surface of the base 11 to the bottom surface of the base 11, and the light receiver 22 is installed on the lateral support arm 122 It is set in position with the light emitter 21 so that the quantity of paper 30 can be detected.
- the support 10 includes a base 11, a support 12, and a shield 50.
- the support 12 includes a vertical support arm 121 connected to the base 11 and a vertical support arm 121 connected and spaced apart.
- the horizontal support arm 122 provided above the base 11 and the shield 50 are connected to the bottom of the horizontal support arm 122.
- the light receiver 22 is mounted on the base 11, the distance from the top surface of the light receiver 22 to the bottom surface of the base 11 is less than or equal to the distance from the top surface of the base 11 to the bottom surface of the base 11, and the light transmitter 21 is mounted on the lateral support arm 122 And set in alignment with the light emitter 21.
- the structure or placement of the paper 30 is restricted.
- the processor 40 can calculate the number of output papers 30 through the amount of light received by the light receiver 22.
- the sensor 21 and the optical receiver 22 are not affected by the material of the paper 30 or other parts during the measurement process, nor are they interfered by electrical signals. The measurement is stable and can be widely promoted.
- an element when an element is referred to as being “fixed on” or “disposed on” another element, the element may be directly on the other element or there may be a centering element at the same time.
- an element When an element is referred to as being “connected” to another element, it can be directly connected to the other element or an intermediate element may also exist.
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Abstract
一种纸张数量检测方法，包括以下步骤：将多张纸张（30）层叠于支座（10）上且使层叠后的纸张集具有阶梯部（S101）；采用光发射器（21）沿着纸张（30）的层叠方向朝阶梯部发射光线（S102）；采用光接收器（22）接收发射的光线（S103）；根据光接收器（22）接收到的光线计算纸张（30）的数量（S104）。还公开了一种纸张数量检测装置。测量过程不受纸张（30）的材质或其它零部件材质的影响，也不受电学信号干扰，测量稳定。
Description
本发明涉及纸张数量检测技术领域，尤其涉及一种纸张数量检测方法及纸张数量检测装置。
现有技术中的纸张数量检测方法大致有以下几种：通过摄像头拍照分析实现进行纸张数量检测、通过超声波检测纸密度分析厚度进行纸张数量检测以及通过滚动计数方式进行纸张数量检测，然而现有的这几种检测方法在具体应用中都仍存在不足之处，具体体现如下：1)方法中通过摄像头拍照分析实现进行纸张数量检测，该这种检测方式系统成本高，计算运力要求高；2)方法中通过超声波检测纸密度分析厚度进行纸张数量检测，该这种检测方式其系统成本高，不同材质纸张存在密度差异导致测试结果偏差；3)方法中通过滚动计数方式进行纸张数量检测，该这种检测方式无法静态检测，应用场景有限。
发明内容
为了克服现有技术的不足，本发明的目的在于提供一种纸张数量检测方法及纸张数量检测装置，测量过程不受纸张材质或其它零部件的材质影响，而且不受电学信号干扰，测量稳定。
本发明采用如下技术方案实现：
一种纸张数量检测方法，包括以下步骤：
将多张纸张层叠于支座上且层叠后的纸张集具有阶梯部；
采用光发射器沿着所述纸张层叠的方向朝所述阶梯部发射光线；
采用光接收器接收所述发射光线；
根据光接收器接收到的光线计算纸张数量。
进一步地，所述发射光线为红光(红外光)或绿光或蓝光或紫外光。
进一步地，将多张纸张层叠于支座上且层叠后的纸张集具有阶梯部具体包括：将多张纸张层叠于支座上且层叠后的纸张集具有阶梯式通孔或阶梯式边缘。
进一步地，根据光接收器接收到的光线计算纸张数量具体包括：依据公式
T
总是指光发射器所发射的光通量；
T
i是指翻了i页后光接收器所接收的光发射器所发出的透过纸张的光通量；
R
i是指翻了i页后光接收器所接收的光发射器照射到纸张后由纸张反射的光通量；
n是纸张的总页数，n
i就是指翻了第i页后减少的纸张数量；
N是指翻了第i页后纸张数量减少后剩余纸张的数量。
本发明还提供了一种纸张数量检测装置，所述纸张数量检测装置用于实现如上述所述的纸张数量检测方法，所述纸张数量检测装置包括用于放置纸张的支座、用于朝向所述纸张发射光线的光发射器、用于接收光线的光接收器和用于根据所述光接收器接收到的光线的光通量计算所述纸张数量的处理器。
相比现有技术，本发明的有益效果在于：
本发明中通过对纸张的结构或摆放方式进行限制，当纸张数量变化时，通过光接收器接收到的光线数量处理器即可以计算输出纸张的数量，光发射器和光接收器在测量过程不受纸张材质或其它零部件的材质影响，也不受电学信号干扰，其测量稳定，可进行大范围推广。
图1为本发明实施例提供的纸张数量检测方法的流程图；
图2为本发明纸张数量检测方法实施例一中纸张放置于纸张数量检测装置上的一个视角的结构示意图；
图3为本发明纸张数量检测方法实施例一中纸张放置于除去遮蔽件及光路阻挡结构后的纸张数量检测装置上的另一个视角的结构示意图；
图4为本发明纸张数量检测方法实施例二中纸张放置于纸张数量检测装置上的结构示意图；
图5为本发明纸张数量检测方法实施例二中纸张放置于除去支架、遮蔽件及光接收器后的纸张数量检测装置上的结构示意图；
图6为本发明纸张数量检测方法实施例三中纸张放置于纸张数量检测装置上的结构示意图；
图7为本发明纸张数量检测方法实施例三中纸张放置于除去支架、遮蔽件及光发射器后的纸张数量检测装置上的结构示意图；
图8为本发明纸张数量检测方法实施例四中纸张放置于纸张数量检测装置上的结构示意图；
图9为本发明纸张数量检测方法实施例四中纸张放置于除去支架、遮蔽件及光发射器后 的纸张数量检测装置上的结构示意图；
图10为本发明纸张数量检测方法实施例五中纸张放置于纸张数量检测装置上一个视角的结构示意图；
图11为本发明纸张数量检测方法实施例五中纸张放置于除去遮蔽件及光路阻挡结构后的纸张数量检测装置上另一个视角的结构示意图；
图12为本发明纸张数量检测方法实施例六中纸张放置于纸张数量检测装置上的结构示意图；
图13为本发明纸张数量检测方法实施例六中纸张放置于除去支架、遮蔽件及光接收器后的纸张数量检测装置上的结构示意图；
图14为本发明实施例提供的纸张数量检测装置中电控元件的连接示意图。
图中：
10、支座；11、底座；12、支架；121、竖向支臂；122、横向支臂；20、光学传感器；21、光发射器；22、光接收器；30、纸张；31、开孔；40、处理器；50、遮蔽件；60、光路阻挡结构；61、防护盖；62、反射镜。
下面，结合附图以及具体实施方式，对本发明做进一步描述，需要说明的是，在不相冲突的前提下，以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
如图1-14所示，依照本发明一实施例提供了一种纸张数量检测方法，纸张数量检测方法包括以下步骤：
S101、将多张纸张30层叠于支座10上且层叠后的纸张集具有阶梯部，将多张纸张30层叠于支座10上且层叠后的纸张集具有阶梯部具体包括：将多张纸张30层叠于支座10上且层叠后的纸张集具有阶梯式通孔或阶梯式边缘。可以理解地，所述将多张纸张30层叠于支座10上包括：将纸张预先层叠好之后再放置于支座上，或者直接在支座10上将纸张30层叠。
具体地，将多张具有不同开孔31尺寸的纸张30以开孔31尺寸依次增大或者依次减小的方式层叠放置于支座10上，或者，将多张纸张30以一侧边缘呈阶梯式或者倒阶梯式依次错位层叠放置于支座10上，在具体放置纸张30的过程中可以使用治具；
S102、采用光发射器21沿着纸张30层叠的方向朝阶梯部发射光线，具体地，采用光发射器21以垂直纸张30层叠方向的方式朝向纸张30的开孔31处或者纸张30的阶梯式边缘处或者纸张30的倒阶梯式边缘处发射光线。
S103、采用光接收器22接收发射光线，具体地，采用光接收器22接收由纸张30反射光 发射器21照射的光线，或者，采用光接收器22接收光发射器21发射并透过纸张30的光线。
S104、根据光接收器22接收到的光线计算纸张30数量，具体地，当纸张30数量减少时，通过处理器40收集光发射器21上的光线所形成的光通量和光接收器22上的光线所形成的光通量，计算输出纸张30的数量，本实施例中的光发射器21和光接收器22统称为光学传感器20，由于外部自然光线进入到光学传感器20的区域会影响光通量的检测，对此，可以通过选用特定波长的光线作为发射光线，本实施例中发射光线为特定波长的光线，发射光线可以为红光(红外光)或者绿光或者蓝光或者紫外光。
通过选用特定波长的光线(比如红外光)作为发射光线，相对于自然光中只有特定波长的光(比如红外光)才会对检测产生干扰，可大大减少自然光的干扰量；同时适当加大光学传感器20特定波长光线(红外光)的光通量，那么可以使自然光中干扰量远远小于光学传感器20的光通量，此时，干扰可以忽略不计。
本发明实施例提供的一种纸张数量检测方法，核心在于使用光学传感器20，利用处理器40检测光通量的变化，来判断纸张30的数量。具体来讲，光发射器21向纸张30发射光线，光线经过纸张30的阶梯部，部分光线被遮挡，光接收器22接收由纸张30反射光发射器21照射的光线；或者光线通过纸张30，直接透射到达用于接收透射光线的光接收器22上。通过对纸张30进行设计，当纸张30数量变化时，处理器40检测光通量发生的变化，通过光通量的变化换算纸张30数量。
本实施例中，根据光接收器22接收到的光线计算纸张30数量具体包括：依据公式
或
计算剩余纸张30的数量；
其中，T
总是指光发射器21所发射的光通量；
R
总是指没翻页状态下光发射器21所发出的光线照射到纸张30后被反射的光通量；
T
i是指翻了i页后光接收器22所接收的光发射器21所发出的透过纸张30的光通量；
R
i是指翻了i页后光接收器22所接收的光发射器21照射到纸张30后由纸张30反射的光通量；
n是纸张30的总页数，n
i就是指翻了第i页后减少的纸张30数量；
N是指翻了第i页后纸张30数量减少后剩余纸张30的数量。
具体地，当步骤S103是采用光接收器22接收由纸张30反射光发射器21照射的光线时，纸张30的数量通过公式
计算输出，公式
是依据以下公式推导出来的：
由公式T
总＝R
总＝T
i+R
i可推出R
i＝T
总-T
i；
将公式
代入上个公式R
i＝T
总-T
i内，可推出公式
进而推出
将
代入公式N＝n-n
i中；
得出
具体地，当步骤S103是采用光接收器22接收由光发射器21发射且穿过纸张30开孔的光线，纸张30的数量通过公式
计算输出，公式
是依据以下公式推导出来的：
由公式
可推出
将
代入公式N＝n-n
i中；
所以，纸张30的数量
本发明中提供了六种纸张数量检测方法的具体实施方案，具体如下，
纸张数量检测方法的实施例一：
如图2-3所示，将多张纸张30层叠于支座10上且层叠后的纸张集具有阶梯部具体包括：将多张具有不同开孔31尺寸的纸张30以开孔31尺寸从上往下依次增大的方式层叠放置于支座10上，其中越靠近光发射器21的一端开孔31尺寸越大；采用光发射器21沿着所述纸张30层叠的方向朝阶梯部发射光线具体包括：光发射器21从纸张30的下方朝向纸张30的开孔31处发射光线，光线遇到纸张30后被遮挡；采用光接收器22接收所述发射光线具体包括： 光接收器22从纸张30的下方接收光发射器21发射到纸张30后被纸张30反射回来的光线，当纸张30数量减少时，光接收器22接收到的的光通量也随之减少，处理器40可通过光通量变化来换算纸张30的数量，同时，采用设于纸张30上方的光路阻挡结构60可以防止外部光线进入到光学传感器20的检测区域而影响检测结果，采用在防护盖61内对应开孔31位置处设置一反射镜62，利用反射镜62从纸张30的上方将透过纸张30开孔31的光线反射至防护盖61的内侧壁上，从而防止透过纸张30开孔31的光线被防护盖61反射回光接收器22。
本实施例中，支座10包括底座11、遮蔽件50以及用于阻挡光线的光路阻挡结构60，光发射器21安装于底座11上，光接收器22也安装于底座11上并与光发射器21并排设置，光路阻挡结构60包括与底座11连接的竖向支臂121、与竖向支臂121连接且间隔设于底座11上方的防护盖61以及设于防护盖61内且呈倾斜设置的反射镜62，遮蔽件50与防护盖61的底部连接，在具体使用时，遮蔽件50将抵接于纸张30上并对纸张30施加挤压力；当纸张30数量减少时，遮蔽件50可沿纸张30的层叠方向伸长，从而保持对纸张30的抵接，确保外部光线无法从遮蔽件50侧边进入开孔31内，遮蔽件50可以为弹簧或其他弹性件。
纸张数量检测方法的实施例二：
如图4-5所示，将多张纸张30层叠于支座10上且层叠后的纸张集具有阶梯部，具体包括：将多张具有不同开孔31尺寸的纸张30以开孔31尺寸从上往下依次增大的方式层叠放置于支座10上，其中越靠近光发射器21的一端开孔31尺寸越大。采用光发射器21沿着所述纸张30层叠的方向朝阶梯部发射光线具体包括：光发射器21从纸张30的下方朝向纸张30的开孔31处发射光线，光线遇到纸张30后被遮挡，光接收器22位于纸张30的另一端，部分光线顺着开孔31直射到光接收器22上，光接收器22检测光发射器21透过纸张30的开孔31处的光线所形成的光通量，采用光接收器22接收所述发射光线具体包括：光接收器22从纸张30的上方接收光发射器21发射并穿过纸张30上开孔31的光线，当纸张30数量减少时，纸张30对光发射器21所发射的光线阻挡减少，光发射器21透射的光通量增加，处理器40可通过光通量变化来换算纸张30数量的变化。
本实施例中，支座10包括底座11、支架12以及如上述的遮蔽件50，支架12包括与底座11连接的竖向支臂121和与竖向支臂121连接且间隔设于底座11上方的横向支臂122，遮蔽件50与横向支臂122的底部连接。光发射器21安装于底座11上，光接收器22安装于横向支臂122上并与光发射器21对位设置。
纸张数量检测方法的实施例三：
如图6-7所示，将多张纸张30层叠于支座10上且层叠后的纸张集具有阶梯部具体包括：将多张具有不同开孔31尺寸的纸张30以开孔31尺寸从上往下依次增大的方式层叠放置于支 座10上，越靠近光接收器22的一侧纸张30的开孔31越大；采用光发射器21沿着所述纸张30层叠的方向朝阶梯部发射光线具体包括：光发射器21从纸张30的上方朝向纸张30处发射光线，光线遇到纸张30后被遮挡，部分光线顺着开孔31到达光接收器22上；采用光接收器22接收所述发射光线具体包括：光接收器22从纸张30的下方接收光发射器21发射并穿过纸张30上开孔31的光线，当纸张30数量减少时，纸张30对光发射器21所发射的光线阻挡减少，处理器40上的光通量也增大，处理器40可通过光通量变化来换算纸张30的数量。
本实施例中，支座10包括底座11、支架12以及遮蔽件50，支架12包括与底座11连接的竖向支臂121和与竖向支臂121连接且间隔设于底座11上方的横向支臂122，遮蔽件50与横向支臂122的底部连接。光发射器21安装于横向支臂122上，光接收器22安装于底座11上。
纸张数量检测方法的实施例四：
如图8-9所示，将多张纸张30层叠于支座10上且层叠后的纸张集具有阶梯部具体包括：将多张纸张30以一侧边缘呈倒阶梯式依次错位层叠放置于支座10上，光线遇到纸张30后被遮挡；采用光发射器21沿着所述纸张30层叠的方向朝阶梯部发射光线具体包括：光发射器21从纸张30的下方朝向纸张30处发射光线；采用光接收器22接收所述发射光线具体包括：光接收器22从纸张30的上方接收光发射器21发射且穿过纸张30的光线所形成的光通量，当纸张30数量减少时，处理器40上的光通量增大，处理器40可通过光通量变化来换算纸张30的数量。
本实施例中，支座10包括底座11、支架12以及遮蔽件50，支架12包括与底座11连接的竖向支臂121和与竖向支臂121连接且间隔设于底座11上方的横向支臂122，遮蔽件50与横向支臂122的底部连接。光发射器21安装于底座11上，光接收器22安装于横向支臂122上，同时，由于光学传感器20的宽度过小且位于纸张30的下方中部，竖向支臂121也会遮挡外部光线，因此不会有外部光线从遮蔽件50未覆盖的位置处进入。
纸张数量检测方法的实施例五：
如图10-11所示，将多张纸张30层叠于支座10上且层叠后的纸张集具有阶梯部具体包括：将多张纸张30以一侧边缘呈倒阶梯式依次错位层叠放置于支座10上；采用光发射器21沿着所述纸张30层叠的方向朝阶梯部发射光线具体包括：光发射器21从纸张30的下方朝向纸张30处发射光线，光线遇到纸张30后被遮挡；采用光接收器22接收所述发射光线具体包括：光接收器22从纸张30的下方接收光发射器21发射到纸张30后被反射的光线所形成的光通量，当纸张30数量减少时，处理器40上的光通量减少，处理器40可通过光通量变化来换算纸张30的数量，同时，采用设于纸张30上方的光路阻挡结构60可以防止外部光线进入 到光学传感器20的检测区域而影响检测结果，采用在防护盖61内对应纸张30倒阶梯边缘处设置一反射镜62，利用反射镜62从纸张30的上方将穿过纸张30倒阶梯边缘处的光线反射至防护盖61的内侧壁上，从而防止穿过纸张30倒阶梯边缘处的光线被防护盖61反射回光接收器22。
本实施例中，支座10包括底座11、遮蔽件50以及用于阻挡光线的光路阻挡结构60，光发射器21和光接收器22都安装于底座11上，光路阻挡结构60包括与底座11连接的竖向支臂121、与竖向支臂121连接且间隔设于底座11上方的防护盖61以及设于防护盖61内且呈倾斜设置的反射镜62，遮蔽件50与防护盖61的底部连接。
纸张数量检测方法的实施例六：
如图12-13所示，将多张纸张30层叠于支座10上且层叠后的纸张集具有阶梯部具体包括：将多张纸张30以一侧边缘呈倒阶梯式依次错位层叠放置于支座10上；采用光发射器21沿着所述纸张30层叠的方向朝阶梯部发射光线具体包括：光发射器21从纸张30的上方朝向纸张30处发射光线，光线遇到纸张30后被遮挡；采用光接收器22接收所述发射光线具体包括：光接收器22从纸张30的下方接收光发射器21发射且穿过纸张30的光线所形成的光通量，当纸张30数量减少时，处理器40上的光通量增大，处理器40可通过光通量变化来换算纸张30的数量。
本实施例中，支座10包括底座11、支架12以及遮蔽件50，支架12包括与底座11连接的竖向支臂121和与竖向支臂121连接且间隔设于底座11上方的横向支臂122，遮蔽件50与横向支臂122的底部连接。光发射器21安装于横向支臂122上，光接收器22安装于底座11上。
本发明还提供了一种纸张数量检测装置，纸张数量检测装置用于实现如上述的纸张数量检测方法，纸张数量检测装置包括用于放置纸张30的支座10、用于朝向纸张30发射光线的光发射器21、用于接收光线的光接收器22和用于收集光接收器22之光通量以计算输出纸张30数量的处理器40，光发射器21、光接收器22和处理器40都安装于支座10上，将光发射器21、光接收器22和处理器40都集成到较小体积的支座10上。
纸张数量检测装置具有以下三个实施例，
纸张数量检测装置的实施例一：
参照图2-3和图10-11所示，支座10包括底座11、遮蔽件50以及用于阻挡光线的光路阻挡结构60，光发射器21和光接收器22并排设置于底座11上，且光发射器21和光接收器22的顶部表面至底座11底部表面的距离小于或等于底座11顶部表面至底座11底部表面的距离，以避免纸张30在底座11上放置不平稳，从而影响处理器40的计算结果，光路阻挡结 构60包括与底座11连接的竖向支臂121、与竖向支臂121连接且间隔设于底座11上方的防护盖61以及设于防护盖61内且呈倾斜设置的反射镜62，防护盖61由不透光材质制成，反射镜62可以将光线拐90度，防止由开孔31处透过的光线被垂直反射回来而影响光通量变化，遮蔽件50与防护盖61的底部连接，遮蔽件50为遮蔽材料制成的圈状体。
纸张数量检测装置的实施例二：
参照图4-5和图8-9所示，支座10包括底座11、支架12以及遮蔽件50，支架12包括与底座11连接的竖向支臂121和与竖向支臂121连接且间隔设于底座11上方的横向支臂122，遮蔽件50与横向支臂122的底部连接。光发射器21安装于底座11上，光发射器21的顶部表面至底座11底部表面的距离小于或等于底座11顶部表面至底座11底部表面的距离，光接收器22安装于横向支臂122上并与光发射器21对位设置，以便于能对纸张30的数量进行检测。
纸张数量检测装置的实施例三：
参照图6-7和图12-13所示，支座10包括底座11、支架12以及遮蔽件50，支架12包括与底座11连接的竖向支臂121和与竖向支臂121连接且间隔设于底座11上方的横向支臂122，遮蔽件50与横向支臂122的底部连接。光接收器22安装于底座11上，光接收器22的顶部表面至底座11底部表面的距离小于或等于底座11顶部表面至底座11底部表面的距离，光发射器21安装于横向支臂122上并与光发射器21对位设置。
本发明实施例中通过对纸张30的结构或摆放方式进行限制，当纸张30数量变化时，通过光接收器22接收到的光线数量，处理器40即可以计算输出纸张30的数量，光发射器21和光接收器22在测量过程不受纸张30材质或其它零部件的材质影响，也不受电学信号干扰，其测量稳定，可进行大范围推广。
需要说明的是，本发明实施例中所有方向性指示(诸如上、下、左、右、前、后、顶部、底部……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
上述实施方式仅为本发明的优选实施方式，不能以此来限定本发明保护的范围，本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。
Claims (18)
- 一种纸张数量检测方法，其特征在于：包括以下步骤：将多张纸张层叠于支座上且层叠后的纸张集具有阶梯部；采用光发射器沿着所述纸张层叠的方向朝所述阶梯部发射光线；采用光接收器接收所述发射光线；根据光接收器接收到的光线计算纸张数量。
- 如权利要求1所述的纸张数量检测方法，其特征在于，所述发射光线为红光(红外光)或绿光或蓝光或紫外光。
- 如权利要求1所述的纸张数量检测方法，其特征在于，将多张纸张层叠于支座上且层叠后的纸张集具有阶梯部具体包括：将多张纸张层叠于支座上且层叠后的纸张集具有阶梯式通孔或阶梯式边缘。
- 如权利要求1所述的纸张数量检测方法，其特征在于，根据光接收器接收到的光线计算纸张数量具体包括：依据公式或
计算所述纸张的数量，其中，
T 总是指光发射器所发射的光通量；T i是指翻了i页后光接收器所接收的光发射器所发出的透过纸张的光通量；R i是指翻了i页后光接收器所接收的光发射器照射到纸张后由纸张反射的光通量；n是纸张的总页数，n i就是指翻了第i页后减少的纸张数量；N是指翻了第i页后纸张数量减少后剩余纸张的数量。 - 如权利要求1至4任一项所述的纸张数量检测方法，其特征在于，将多张纸张层叠于支座上且层叠后的纸张集具有阶梯部具体包括：将多张具有不同开孔尺寸的纸张以开孔尺寸从上往下依次增大的方式层叠放置于所述支座上；采用光发射器沿着所述纸张层叠的方向朝所述阶梯部发射光线具体包括：所述光发射器从所述纸张的下方朝向所述纸张的开孔处发射光线。
- 如权利要求5所述的纸张数量检测方法，其特征在于，采用光接收器接收所述发射光线具体包括：所述光接收器从所述纸张的下方接收所述光发射器发射到所述纸张后被反射的光线。
- 如权利要求6所述的纸张数量检测方法，其特征在于，还包括在层叠后的纸张上方设置光路阻挡结构以阻挡外部光线通过开孔到达光接收器以及光路阻挡结构内对应开孔位置处设置反射镜以将透过所述纸张开孔的光线反射至光路阻挡结构的内侧壁上。
- 如权利要求5所述的纸张数量检测方法，其特征在于，采用光接收器接收所述发射光线具体包括：所述光接收器从所述纸张的上方接收所述光发射器发射且穿过所述纸张开孔的光线。
- 如权利要求1至4任一项所述的纸张数量检测方法，其特征在于，将多张纸张层叠于支座上且层叠后的纸张集具有阶梯部具体包括：将多张具有不同开孔尺寸的纸张以开孔尺寸从上往下依次增大的方式层叠放置于所述支座上；采用光发射器沿着所述纸张层叠的方向朝所述阶梯部发射光线具体包括：所述光发射器从所述纸张的上方朝向所述纸张处发射光线；采用光接收器接收所述发射光线具体包括：所述光接收器从所述纸张的下方接收所述光发射器发射且穿过所述纸张开孔的光线。
- 如权利要求1至4任一项所述的纸张数量检测方法，其特征在于，将多张纸张层叠于支座上且层叠后的纸张集具有阶梯部具体包括：将多张纸张以一侧边缘呈倒阶梯式依次错位层叠放置于支座上；采用光发射器沿着所述纸张层叠的方向朝所述阶梯部发射光线具体包括： 所述光发射器从所述纸张的下方朝向所述纸张处发射光线。
- 如权利要求10所述的纸张数量检测方法，其特征在于，采用光接收器接收所述发射光线具体包括：所述光接收器从所述纸张的上方接收所述光发射器发射且穿过所述纸张的光线。
- 如权利要求10所述的纸张数量检测方法，其特征在于，采用光接收器接收所述发射光线具体包括：所述光接收器从所述纸张的下方接收所述光发射器发射到所述纸张后被反射回的光线。
- 如权利要求12所述的纸张数量检测方法，其特征在于，还包括在层叠后的纸张上方设置光路阻挡结构以阻挡外部光线通过纸张倒阶梯处的边缘到达光接收器和在光路阻挡结构内对应纸张倒阶梯处的边缘设置反射镜以将穿过所述纸张边缘的光线反射至光路阻挡结构的内侧壁上。
- 如权利要求1至4任一项所述的纸张数量检测方法，其特征在于，将多张纸张层叠于支座上且层叠后的纸张集具有阶梯部具体包括：将多张纸张以一侧边缘呈倒阶梯式依次错位层叠放置于支座上；采用光发射器沿着所述纸张层叠的方向朝所述阶梯部发射光线具体包括：所述光发射器从所述纸张的上方朝向所述纸张处发射光线；采用光接收器接收所述发射光线具体包括：所述光接收器从所述纸张的下方接收所述光发射器发射且穿过所述纸张的光线。
- 一种纸张数量检测装置，其特征在于，所述纸张数量检测装置用于实现如权利要求1至14任一项所述的纸张数量检测方法，所述纸张数量检测装置包括用于放置纸张的支座、用于朝向所述纸张发射光线的光发射器、用于接收光线的光接收器和用于根据所述光接收器接收到的光线的光通量计算所述纸张数量的处理器。
- 如权利要求15所述的纸张数量检测装置，其特征在于，所述支座包括底座、遮蔽件以及光路阻挡结构，所述光发射器和光接收器并排设置于所述底座上，且所述光发射器和光接收器的顶部表面至所述底座底部表面的距离小于或等于所述底座顶部表面至所述底座底部表面的距离，所述光路阻挡结构包括与所述底座连接的竖向支臂、与所述竖向支臂连接且间隔设于所述底座上方的防护盖以及设于所述防护盖内且呈倾斜设置的反射镜，所述遮蔽件与所述防护盖的底部连接。
- 如权利要求15所述的纸张数量检测装置，其特征在于，所述支座包括底座、支架以及遮蔽件，所述支架包括与底座连接的竖向支臂以及与所述竖向支臂连接且间隔设于所述底座上方的横向支臂，所述遮蔽件与所述横向支臂的底部连接，所述光发射器安装于所述底座上，所述光发射器的顶部表面至所述底座底部表面的距离小于或等于所述底座顶部表面至所述底座底部表面的距离，所述光接收器安装于所述横向支臂上并与所述光发射器对位设置。
- 如权利要求15所述的纸张数量检测装置，其特征在于，所述支座包括底座、支架以及遮蔽件，所述支架包括与底座连接的竖向支臂以及与所述竖向支臂连接且间隔设于所述底座上方的横向支臂，所述遮蔽件与所述横向支臂的底部连接，所述光接收器安装于所述底座上，所述光接收器的顶部表面至所述底座底部表面的距离小于或等于所述底座顶部表面至所述底座底部表面的距离，所述光发射器安装于所述横向支臂上并与所述光发射器对位设置。
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