Optical Detection Weight Device and Method

Abstract

The present application discloses an optical detection weighing device and method. The optical detection weighing device includes: a light source emitter for emitting detection light; a reflector disposed in the propagation optical path of the detection light at a reflection angle for reflecting the detection light to form a reflected light; and an induction component connected to the reflector and provided with a placement area for placing a to-be-detected object, for changing the reflection angle of the reflector under the gravity of the to-be-detected object. This device detects the gravity of the to-be-detected object through the change in the position of the reflected light, and is not easily affected by metal fatigue and does not easily cause mechanical wear problems.

Description

Technical Field

[0001] The present invention relates to the technical field of force detection, and in particular, to an optical detection weight device and method. Background Art

[0002] In industrial product production, each product needs to go through multiple processes. Different devices for different purposes such as different structural modules, functional modules, and fixing devices are fixed inside the equipment, connected by wires, and then the outer shell is closed to assemble into a complete product. After the outer shell is installed, quality inspection personnel can no longer observe the inside of the equipment. Generally, functional tests of the equipment are used to verify whether there are problems with the product.

[0003] Traditional weighing sensors are equivalent to a deformable metal. By using an operational amplifier circuit to detect the change in resistance after the metal deforms under pressure, after multiple uses, traditional weighing sensors are prone to being affected by metal fatigue and mechanical wear. Summary of the Invention

[0004] Embodiments of the present invention provide an optical detection weight device and method to solve the problems that traditional weighing sensors are prone to being affected by metal fatigue and mechanical wear.

[0005] Adopt the following technical solutions:

[0006] An optical detection weight device, comprising:

[0007] A light source emitter for emitting detection light;

[0008] A reflector disposed on the propagation optical path of the detection light at a reflection angle for reflecting the detection light to form a reflected light;

[0009] An induction component connected to the reflector, provided with a placement area for placing the object to be measured, for changing the reflection angle of the reflector under the gravity of the object to be measured.

[0010] By adopting the above technical solutions, when the light source emitter emits detection light and the object to be measured is placed in the placement area on the induction component, the induction component senses the gravity of the object to be measured. Under the action of gravity, the reflector is pushed to rotate by a certain reflection angle, resulting in a change in the propagation direction of the detection light and forming a reflected light. Thus, the position of the finally received reflected light changes. Then, the change in the position of the reflected light can reflect the change in the gravity of the object to be measured, and different changes in the position of the reflected light correspond to different gravities of the object to be measured. In this way, the gravity of the object to be measured can be detected through the change in the position of the reflected light, and it is not easily affected by metal fatigue and mechanical wear.

[0011] Preferably, the induction component includes:

[0012] The body, and the rearview mirror is rotatably connected to the body;

[0013] The force-bearing member is slidably connected to the body and is used to support the object to be measured and slide under the gravity of the object to be measured;

[0014] The force-applying member is arranged on the body and is used to push the rearview mirror to rotate according to the sliding of the force-bearing member so as to change the reflection angle of the rearview mirror.

[0015] By adopting the above technical solution, the body is respectively connected to the force-bearing member and the force-applying member. The force-bearing member supports the object to be measured and slides under the gravity of the object to be measured. The force-applying member pushes the rearview mirror to rotate according to the sliding of the force-bearing member so as to change the reflection angle of the rearview mirror. In this way, the gravity action of the object to be measured is converted into the change of the reflection angle, so that the change of the position of the detected reflected light can reflect the gravity of the object to be measured.

[0016] Preferably, the force-applying member includes a pressure film capable of deforming, and the rearview mirror passes through the deformation range area of the pressure film;

[0017] A sealed space is arranged between the pressure film and the force-bearing member, and a force transmission body for driving the pressure film to deform due to the sliding of the force-bearing member is arranged in the sealed space. The force transmission body includes one of gas, liquid and solid.

[0018] By adopting the above technical solution, the force-bearing member slides under the gravity of the object to be measured. In the sealed space, the force transmission body drives the pressure film to deform. The rearview mirror passes through the deformation range area of the pressure film. Then, the deformation of the pressure film will cause the rearview mirror to rotate so as to change the reflection angle of the rearview mirror. The force transmission body is located in the sealed space and can better convert between the gravity received by the force-bearing member and the angle of the force-applying member. Any one of gas, liquid and solid as the force transmission body can realize its conversion function.

[0019] Preferably, the body includes a first seat body, a second seat body and a connecting pipe. A first hollow pipe is arranged in the first seat body, a second hollow pipe is arranged in the second seat body, and the two ends of the connecting pipe are respectively communicated with the first hollow pipe and the second hollow pipe. A sealed space is formed among the first hollow pipe, the connecting pipe and the second hollow pipe;

[0020] One end of the force-bearing member is received and slidably connected in the first hollow pipe, and the other end of the force-bearing member is exposed outside the first hollow pipe for the object to be measured to contact;

[0021] The force-applying member is hermetically arranged at the pipe orifice of the second hollow pipe far away from the connecting pipe.

[0022] By adopting the above technical solution, one end of the force-receiving member contacts the object to be measured, and the other end is connected to the force-applying member through the first hollow pipe, the connecting pipe, and the second hollow pipe. The gravity effect of the object to be measured is converted into a change in the reflection angle, so that the change in the position of the detected reflected light can reflect the gravity of the object to be measured.

[0023] Preferably, a plurality of induction components are provided, a plurality of reflectors are provided, and the induction components and the reflectors are in one-to-one correspondence.

[0024] By adopting the above technical solution, a plurality of induction components and reflectors are provided and in one-to-one correspondence. When the object to be measured is placed on the placement area of the plurality of induction components, each induction component in contact with the object to be measured can detect the gravity of the corresponding part or module of the object to be measured it supports, so as to determine whether there are quality problems with the corresponding part or module of the object to be measured.

[0025] Preferably, a light-emitting member is provided on one side of the first base facing the placement area, and the light-emitting member emits silhouette light to the object to be measured to obtain the silhouette of the object to be measured.

[0026] By adopting the above technical solution, the light-emitting member emits silhouette light to the object to be measured to obtain the silhouette of the object to be measured, and this silhouette corresponds to the projection formed after being emitted by the light source emitter and reflected by the reflector. Then, according to the silhouettes obtained at different placement angles or positions of the object to be measured itself, the corresponding projections formed after being emitted by the light source emitter and reflected by the reflector 4 are obtained. In this way, without limiting the different placement angles or positions of the object to be measured itself, the result of whether the object to be measured is consistent with the standard object can be obtained.

[0027] Preferably, the first curtain is arranged on the propagation optical path of the reflected light for imaging the reflected light;

[0028] The first photographing unit is used for photographing the projection image on the first curtain;

[0029] The second curtain is arranged on the transmission optical path of the silhouette light for imaging the silhouette light;

[0030] The second photographing unit is used for photographing the silhouette image on the second curtain.

[0031] By adopting the above technical solution, the first curtain is used for imaging the reflected light. Subsequently, the projection image on the first curtain is photographed and analyzed by the first photographing unit, and the detection result is obtained, making the detection result more accurate. The second curtain is used for imaging the silhouette light. Subsequently, the silhouette image on the second curtain is photographed and analyzed by the second photographing unit, and the analysis result is obtained, making the analysis result more accurate.

[0032] An optical detection weight method includes:

[0033] Emit detection light through a light source emitter;

[0034] Reflect the detection light through a reflector to form a reflected light, and the reflector is arranged on the propagation optical path of the detection light with a reflection angle;

[0035] Change the reflection angle of the reflector under the gravity of the object to be measured through an induction component. The induction component is connected to the reflector, and a placement area for placing the object to be measured is set on the induction component.

[0036] By adopting the above technical solution, the change in the position of the reflected light can reflect the change in the gravity of the object to be measured, and different changes in the position of the reflected light correspond to different gravities of the object to be measured. In this way, the gravity of the object to be measured can be detected through the change in the position of the reflected light, and it is not easily affected by metal fatigue and not easily cause problems of mechanical wear.

[0037] An optical weight detection method further includes:

[0038] Reflect the detection light through a reflector to form a reflected light, form a projection image on a first curtain, and a first shooting unit analyzes the projection image;

[0039] Emit silhouette light to the object to be measured through a light-emitting part, form a silhouette image on a second curtain, and a second shooting unit analyzes the silhouette image;

[0040] Match the projection image with the silhouette image, and based on the corresponding position relationship between the projection image and the silhouette image, obtain the pressure value corresponding to the pixel in the silhouette image.

[0041] An optical weight detection method, after matching the projection image with the silhouette image and obtaining the pressure value corresponding to the pixel in the silhouette image based on the corresponding position relationship between the projection image and the silhouette image, includes:

[0042] Obtain the standard silhouette image of the standard object and the target silhouette image of the object to be measured;

[0043] Analyze the standard silhouette image and the target silhouette image to obtain a consistency result.

[0044] In summary, the present application includes at least one of the following beneficial technical effects:

[0045] 1. Detect the gravity of the object to be measured through the change in the position of the reflected light, and it is not easily affected by metal fatigue and not easily cause problems of mechanical wear;

[0046] 2. If multiple induction components and reflectors are provided and they correspond one by one, when a test object is placed on the placement areas of the multiple induction components, each induction component in contact with the test object can detect the gravity of the corresponding part or module of the test object it supports, thereby determining whether there are quality problems with the corresponding part or module of the test object.

[0047] 3. When the light-emitting element emits silhouette light to the test object, a silhouette of the test object can be obtained, and this silhouette corresponds to the projection formed after being emitted by the light source emitter and reflected by the reflector. Then, without restricting the different placement angles or positions of the test object itself, the result of whether the test object is consistent with the standard object can be obtained. Description of the Drawings

[0048] Figure 1 Schematic diagram showing the optical detection weighing device according to an embodiment of the present application;

[0049] Figure 2 Schematic diagram showing the optical detection weighing device according to an embodiment of the present application highlighting the first curtain;

[0050] Figure 3 Schematic diagram showing the structure of the optical detection weighing device according to an embodiment of the present application;

[0051] Figure 4 Schematic diagram showing the structure of multiple induction components of the optical detection weighing device according to an embodiment of the present application;

[0052] Figure 5 Schematic diagram showing the structure of the M*N matrix arrangement of the optical detection weighing device according to an embodiment of the present application;

[0053] Figure 6 Schematic diagram showing the silhouette image and the projection image of the optical detection weighing device according to an embodiment of the present application;

[0054] Figure 7 Schematic diagram showing different placement positions of the optical detection weighing device according to an embodiment of the present application.

[0055] Description of the reference numerals: 1. Light source emitter; 2. Reflector; 3. Induction component; 31. Placement area; 32. Machine body; 321. First seat body; 3211. First hollow pipe; 3212. Light-emitting element; 322. Second seat body; 3221. Second hollow pipe; 323. Connecting pipe; 33. Force-bearing member; 34. Force-applying member; 4. First curtain; 5. Second curtain; 6. First photographing unit; 7. Second photographing unit. Detailed Description of the Embodiment

[0056] The following is a further detailed description of the present application in conjunction with the attached Figures 1-7 ,.

[0057] An embodiment of the present application discloses an optical detection weighing device.

[0058] Referring to Figure 1 , an optical detection weighing device includes a light source emitter 1, a reflector 2, and an induction component 3. The light source emitter 1 emits detection light towards the reflector 2; the reflector 2 is arranged on the propagation optical path of the detection light at a reflection angle, and reflects the detection light to form a reflected light; the induction component 3 is rotatably connected to the reflector 2. A placement area 31 for placing the object to be measured is arranged on the induction component 3, and the reflection angle of the reflector 2 is changed under the gravity of the object to be measured.

[0059] In this embodiment, when the light source emitter 1 emits detection light and the object to be measured is placed in the placement area 31 on the induction component 3, the induction component 3 senses the gravity of the object to be measured. Under the action of gravity, the reflector 2 is pushed to rotate by a certain reflection angle, resulting in a change in the propagation direction of the detection light and the formation of a reflected light, so that the position of the finally received reflected light changes. Then, the change in the position of the reflected light can reflect the change in the gravity of the object to be measured, and different changes in the position of the reflected light correspond to different gravities of the object to be measured. In this way, the gravity of the object to be measured can be detected through the change in the position of the reflected light, and it is not easily affected by metal fatigue and does not easily cause mechanical wear problems.

[0060] In this embodiment, the reflection angle is the included angle between the reflector 2 and the induction component 3. When the placement area 31 of the induction component 3 does not place the object to be measured, the reflector 2 is vertically downward and the reflector 2 is in contact with the induction component 3, and the reflection angle is zero; when the placement area 31 of the induction component 3 places the object to be measured, the upper end of the reflector 2 rotates around the induction component 3, so that the reflection angle between the reflector 2 and the induction component 3 is an acute angle, and different gravities of the object to be measured correspond to different reflection angles. By obtaining the position or the position change distance of the reflected light, the pressure value of the object to be measured borne by the induction component 3 under the action of gravity can be obtained.

[0061] Referring to Figure 2 , the induction component 3 includes a body 32, a force-receiving member 33, and a force-applying member 34. The reflector 2 is rotatably connected to the body 32, the force-receiving member 33 is slidably connected to the body 32, and the force-applying member 34 is arranged on the body 32. The force-receiving member 33 is used to support the object to be measured and slide under the gravity of the object to be measured. The force-applying member 34 is used to push the reflector 2 to rotate according to the sliding of the force-receiving member 33, so as to change the reflection angle of the reflector 2. The force-applying member 34 includes a pressure film that can deform, and the reflector 2 passes through the deformation range area of the pressure film; a sealed space is arranged between the pressure film and the force-receiving member 33, and a force transmission body for driving the pressure film to deform due to the sliding of the force-receiving member 33 is arranged in the sealed space. The force transmission body includes one of gas, liquid, and solid.

[0062] In this embodiment, one end of the force-receiving member 33 is a placement area 31. The force-receiving member 33 moves under the gravitational force of the object to be measured, and transmits the pressure to the pressure film through the force-transmitting body in the sealed space. The pressure film deforms under the action of the pressure and bulges towards the direction of the reflector 2. A distance is generated between the reflector 2 and the body 32, and the reflector 2 rotates around the body 32. When the object to be measured is removed, due to the self-gravity of the reflector 2, it will push the pressure film to restore it, and then through the force-transmitting body, push the force-receiving member 33 back to its original position. The force-transmitting body can be air, hydraulic oil, several ball bearings, etc. The force-receiving member 33 can be a pressure probe, etc. The light source emitter 1 can be a laser emitter, etc.

[0063] Referring to Figure 2 and Figure 3 , the body 32 includes a first base body 321, a second base body 322 and a connecting pipe 323. A first hollow pipe 3211 is provided in the first base body 321, a second hollow pipe 3221 is provided in the second base body 322, and both ends of the connecting pipe 323 communicate with the first hollow pipe 3211 and the second hollow pipe 3221 respectively. A sealed space is formed among the first hollow pipe 3211, the connecting pipe 323 and the second hollow pipe 3221; one end of the force-receiving member 33 is accommodated and slidably connected in the first hollow pipe 3211, and the other end of the force-receiving member 33 is exposed outside the first hollow pipe 3211 for the object to be measured to contact; the force-applying member 34 is hermetically arranged at the pipe orifice at one end of the second hollow pipe 3221 away from the connecting pipe 323. In this way, one end of the force-receiving member 33 contacts the object to be measured, and the other end is connected to the force-applying member 34 through the first hollow pipe 3211, the connecting pipe 323, and the second hollow pipe 3221. The function of converting the gravitational force of the object to be measured into a change in the reflection angle is realized, so that the change in the position of the detected reflected light can reflect the gravity of the object to be measured. The cross-section of the first base body can be equivalent to the cross-sectional area of the force-receiving member.

[0064] Referring to Figure 4 , a light-emitting member 3212 is circumferentially arranged on one side of the first base body 321 facing the placement area 31. The light-emitting member 3212 emits silhouette light to the object to be measured to obtain the silhouette of the object to be measured. The light-emitting member 3212 can emit a single variable-color light, and the color can be modified according to the environment and the color of the object to be measured, and a color with strong contrast is selected. The silhouette corresponds to the projection formed after the light source emitter 1 emits and is reflected by the reflector 2. Then, according to the silhouette obtained by the object to be measured at different placement angles or positions, the corresponding projection formed after the light source emitter 1 emits and is reflected by the reflector 2 is obtained. In this way, without limiting the different placement angles or positions of the object to be measured itself, the result of whether the object to be measured is consistent with the standard object can be obtained.

[0065] Referring to Figure 2, the optical detection weight device further includes a first curtain 4, a second curtain 5, a first photographing unit 6 and a second photographing unit 7. The first curtain 4 is disposed on the propagation optical path of the reflected light for imaging the reflected light; the first photographing unit 6 is used for photographing and calculating and analyzing the projected image on the first curtain 4. The second curtain 5 is disposed on the transmission optical path of the silhouette light for imaging the silhouette light, and the second photographing unit 7 is used for photographing and analyzing the silhouette image on the second curtain 5.

[0066] Specifically, the first curtain 4 and the first curtain 4 may be an integral structure, that is, one curtain realizes the projection of the silhouette light and the reflected light; they may also be separated, and when separated, they may also be located at different positions of the sensing component 3, such as one above and one on the right, etc. The first photographing unit 6 and the second photographing unit 7 may be located in one camera or electronic device, that is, one camera or electronic device photographs and analyzes the silhouette image and the projected image, or may be located in two cameras or electronic devices, which is selected according to the actual situation.

[0067] Refer to Figure 4 and Figure 5 , a plurality of sensing components 3 are provided, and a plurality of reflectors 2 are provided. The sensing components 3 and the reflectors 2 are in one-to-one correspondence. The plurality of sensing components 3 are arranged in an M*N matrix. (M is the number of horizontal arrangements, and N is the number of vertical arrangements). When the object to be measured is placed in the placement area 31 of the sensing component 3, only the placement area 31 is in point contact with the object to be measured, then the pressure values of each placement area 31 of the sensing component 3 by the object to be measured may be different, so that the pressure value borne by each force-bearing member 33 can be measured. Each force-bearing member 33 pushes each pressure film through the force transmission body in the closed space. Under the linkage of the plurality of pressure films, the plurality of reflecting lenses present different reflection angles, and the line laser emitted by the laser emitter is reflected into different segments and projected on the imaging screen of the camera or electronic device. The projected image is an image in the shape of a waveform diagram composed of several line segments, and each line segment of the projected image corresponds to each pressure value. The number of pressure values received by the force-bearing member 33 is equal to the number of line segments in the projected image. At the same time, if there is a light-emitting member 3212 on each sensing component 3, a silhouette image corresponding to the object to be measured can be obtained, and the silhouette image corresponds to the projected image through the positional relationship of the matrix arrangement. A certain pixel on the silhouette image corresponds to a pressure value.

[0068] Specifically, the application scenario of the device formed by the combination of multiple sensing components 3 and multiple reflectors 2, for example: after the installation of the object to be tested, the quality inspector cannot observe the internal structure of the object to be tested, resulting in a module not being fixed in place, the wire routing not being fixed, etc. The device can detect the gravity of the part or module of the object to be tested corresponding to each sensing component 3, so as to determine whether there is a quality problem in the corresponding part or module inside the object to be tested, and screen the object to be tested. At the same time, by using optical measurement of gravity, mechanical wear is not easy to occur.

[0069] The embodiment of the present application discloses a method for optically detecting weight.

[0070] An optical weight detection method, comprising:

[0071] The detection light is emitted by the light source emitter 1;

[0072] The detection light is reflected by the reflector 2 to form a reflected light, and the reflector 2 is arranged at a reflection angle on the propagation light path of the detection light;

[0073] The reflection angle of the reflector 2 is changed by the sensing component 3 under the gravity of the object to be measured. The sensing component 3 is connected to the reflector 2 and is provided with a placement area 31 for placing the object to be measured.

[0074] In the above method, the light source transmitter 1 emits the detection light. When the object to be tested is placed in the placement area 31 on the sensing component 3, the sensing component 3 senses the gravity of the object to be tested, and pushes the reflector 2 to rotate a certain reflection angle under the action of gravity, causing the propagation direction of the detection light to change and forming a reflected light, so that the position of the reflected light finally received changes. The change in the position of the reflected light can reflect the change in the gravity of the object to be tested, and different changes in the position of the reflected light correspond to different gravity of the object to be tested.

[0075] For the device of this embodiment formed by combining a plurality of sensing components 33 and a plurality of reflectors 22, the optical weight detection method further includes:

[0076] The detection light is reflected by the reflector 2 to form a reflected light, and a projection image is formed on the first curtain 4, and the first shooting unit 6 analyzes the projection image;

[0077] The light emitting element 3212 emits silhouette light to the object to be measured, and a silhouette image is formed on the second curtain 5, and the second shooting unit 7 analyzes the silhouette image;

[0078] The projection image is matched with the silhouette image, and based on the corresponding position relationship between the projection image and the silhouette image, the pressure value corresponding to the pixel in the silhouette image is obtained.

[0079] Specifically, an image in the shape of a waveform diagram composed of several line segments is formed on the projection image. These several line segments reflect the pressure values borne by each sensing component 3. Each sensing component 3 is further provided with a light-emitting element 3212, and the light-emitting element 3212 emits silhouette light towards the object to be measured to form a silhouette image on the second curtain 5. Then, a certain pixel on the silhouette image corresponds to a certain line segment on the projection image, and this pixel corresponds to a pressure value representing this line segment. The corresponding position relationship between the projection image and the silhouette image can be obtained through one-by-one testing by a computer device. For example, by pressing a sensing component 3, corresponding signals will be displayed on the first curtain 4 and the second curtain 5 to obtain the position relationship.

[0080] Figure 7 Each square on the projection image in [description] represents a pixel. The shaded part on the projection image represents that the corresponding sensing component 3 bears pressure and the pressure value is not zero. The blank part on the projection image represents that the corresponding sensing component 3 does not bear pressure and the pressure value is zero.

[0081] For the device of this embodiment formed by combining multiple sensing components 33 and multiple reflectors 22, after matching the projection image and the silhouette image and obtaining the pressure value corresponding to the pixel in the silhouette image based on the corresponding position relationship between the projection image and the silhouette image, it further includes:

[0082] Obtain the standard silhouette image of the standard object and the target silhouette image of the object to be measured;

[0083] Analyze the standard silhouette image and the target silhouette image to obtain a consistency result.

[0084] Specifically, find the next pixel of the standard silhouette image through the eight-neighborhood method. The eight-neighborhood is the neighborhood of the current pixel on the left, right, above, below, upper left, lower left, upper right, and lower right.

[0085] Before detecting the object to be measured, obtain the standard silhouette image of the standard object. Select a certain pixel on the edge of the standard silhouette image as the starting point, obtain the pressure string of this pixel. Through the corresponding position relationship between the projection image and the silhouette image, the pressure value corresponding to the pressure string of this pixel can be obtained. Find the next pixel through the eight-neighborhood method, obtain the positions of the neighborhoods (1 to 8), and also obtain the pressure values of the pressure strings corresponding to the corresponding neighborhood positions. Continue to use the eight-neighborhood method to find the pixels at the neighborhood positions until the pressure values corresponding to the pressure strings of all pixels are obtained, and collect the obtained pressure strings and the corresponding pressure values in the search order for comparison with the target silhouette image of the object to be measured.

[0086] Refer to Figure 7, Obtain the target silhouette image of the object to be measured. There may be offsets in distance, angle, or position between this target silhouette image and the standard silhouette image (due to various factors such as manual placement, its position may be inconsistent each time). Randomly select a certain edge pixel of the silhouette to be measured, and the next pixel of the edge pixel (either upwards or downwards). Determine the offset direction, distance, or angle, etc. of the target silhouette image through the positions of two domains (such as 3 and 7) to form an edge relationship string. Then, the pressure value of the ideal target silhouette image corresponding to the same offset direction, distance, or angle as the standard silhouette image can be obtained. By comparing the pressure value of the ideal target silhouette image with the pressure value of the target silhouette image, it can be determined whether the object to be measured is consistent with the standard object. This method can obtain the pressure values of other placement positions with offsets in distance, angle, or position from just one placement position, without the need to obtain evidence for the pressure values of each placement position, making the adaptability of this device better. Additionally, a label code can also be attached to the back of the object to be measured and used for binding the ID and weight parameters after being recognized by the system.

[0087] The implementation principle of an optical detection weight device and method in an embodiment of this application is as follows: The light source emitter 1 emits detection light. When the object to be measured is placed in the placement area 31 on the induction component 3, the induction component 3 senses the gravity of the object to be measured. Under the action of gravity, the reflector 2 is pushed to rotate by a certain reflection angle, causing the propagation direction of the detection light to change and forming a reflected light. As a result, the position of the finally received reflected light changes. Then, the change in the position of the reflected light can reflect the change in the gravity of the object to be measured, and different changes in the position of the reflected light correspond to different gravities of the object to be measured. In this way, the gravity of the object to be measured can be detected through the change in the position of the reflected light, and it is not easily affected by metal fatigue and does not easily cause mechanical wear problems.

[0088] The above are all the preferred embodiments of this application. Without restricting the protection scope of this application based on this, therefore: All equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An optical detection weighing device, characterized in that, Comprising: A light source emitter (1) for emitting detection light; A reflecting mirror (2) disposed in the propagation optical path of the detection light at a reflection angle for reflecting the detection light to form a reflected light; An induction component (3) connected to the reflecting mirror (2), provided with a placement area (31) for placing the object to be measured, and used for changing the reflection angle of the reflecting mirror (2) under the gravity of the object to be measured; a plurality of the induction components (3) are provided, a plurality of the reflecting mirrors (2) are provided, and the induction components (3) and the reflecting mirrors (2) correspond one by one; wherein, the induction component (3) includes: A body (32), and the reflecting mirror (2) is rotatably connected to the body (32); A force-receiving member (33) slidably connected to the body (32) for supporting the object to be measured and sliding under the gravity of the object to be measured; A force-applying member (34) disposed on the body (32) for pushing the reflecting mirror (2) to rotate according to the sliding of the force-receiving member (33) so as to change the reflection angle of the reflecting mirror (2); the force-applying member (34) includes a deformable pressure film, and the reflecting mirror (2) passes through the deformation range area of the pressure film; a sealed space is provided between the pressure film and the force-receiving member (33), and a force-transmitting body for driving the pressure film to deform due to the sliding of the force-receiving member (33) is provided in the sealed space; the force-transmitting body includes one of gas and liquid; The body (32) includes a first seat body (321), a second seat body (322) and a connecting pipe (323), a first hollow pipe (3211) is provided in the first seat body (321), a second hollow pipe (3221) is provided in the second seat body (322), two ends of the connecting pipe (323) are respectively communicated with the first hollow pipe (3211) and the second hollow pipe (3221), and the sealed space is formed among the first hollow pipe (3211), the connecting pipe (323) and the second hollow pipe (3221); One end of the force-receiving member (33) is received and slidably connected in the first hollow pipe (3211), and the other end of the force-receiving member (33) is exposed outside the first hollow pipe (3211) for the object to be measured to contact; The force-applying member (34) is hermetically disposed at the pipe orifice of the second hollow pipe (3221) far from the connecting pipe (323); 2. The optical detection weight device according to claim 1, characterized in that, A light-emitting member (3212) is provided on one side of the first seat body (321) facing the placement area (31), and the light-emitting member (3212) emits silhouette light to the object to be measured to obtain a silhouette of the object to be measured.

3. The optical detection weight device according to claim 2, characterized in that, Further comprising: A first curtain (4) disposed in the propagation optical path of the reflected light for imaging the reflected light; A first shooting unit (6) for shooting a projection image on the first curtain (4); A second curtain (5) disposed in the transmission optical path of the silhouette light for imaging the silhouette light; A second photographing unit (7) for photographing a silhouette image on the second curtain (5).

4. An optical detection weight method, characterized in that, Implemented based on the optical detection weighing device according to claim 1, the method includes: Emitting detection light through a light source emitter (1); Reflecting the detection light through a reflector (2) to form a reflected light, and the reflector (2) is disposed in the propagation optical path of the detection light at a reflection angle; Changing the reflection angle of the reflector (2) under the gravity of the object to be measured through an induction component (3), the induction component (3) is connected to the reflector (2), and the induction component (3) is provided with a placement area (31) for placing the object to be measured; Reflecting the detection light through the reflector (2) to form the reflected light, forming a projection image on the first curtain (4), and the first photographing unit (6) analyzes the projection image; Emitting silhouette light to the object to be measured through a light emitting member (3212), forming a silhouette image on the second curtain (5), and the second photographing unit (7) analyzes the silhouette image; Matching the projection image with the silhouette image, and based on the corresponding position relationship between the projection image and the silhouette image, obtaining the pressure value corresponding to the pixel in the silhouette image; After the step of matching the projection image with the silhouette image and obtaining the pressure value corresponding to the pixel in the silhouette image based on the corresponding position relationship between the projection image and the silhouette image, it further includes: Obtaining a standard silhouette image of a standard object and a target silhouette image of the object to be measured; Analyzing the standard silhouette image and the target silhouette image to obtain a consistency result.

Images