Optical fiber sensor difference compensation system and method

Abstract

The present invention discloses a fiber optic sensor difference compensation system and method, comprising a fiber optic sensor, a compensation unit and a detection unit respectively connected to the fiber optic sensor, and a control and processing unit; wherein the fiber optic sensor comprises an optical fiber, a light source, and a light sensor; the compensation unit is connected to the light source of the fiber optic sensor to compensate for the light source; the detection unit is connected to the light sensor of the fiber optic sensor to receive a light sensor output value and transmit the light sensor output value to the control and processing unit; the control and processing unit is used to compare the light sensor output value with a standard output value, and control the compensation unit to adjust and compensate the light source of the fiber optic sensor according to the comparison result, so that the light sensor output value is consistent with the standard output value. The fiber optic sensor difference compensation system and method of the present invention can avoid the problem of poor consistency of the final product due to differences in the production process, and can improve the product yield.

Description

Technical Field

[0001] The present invention relates to the field of sensor technology, and in particular to a fiber optic sensor difference compensation system and method. Background Art

[0002] Fiber optic sensor technology is a new sensing technology that has emerged along with the development of optical fiber and fiber optic communication technology. With the rapid development of fiber optic manufacturing technology and the in-depth research of fiber optic materials, fiber optic sensing technology has also developed rapidly. Compared with traditional sensors, optical sensors have a series of unique advantages such as high sensitivity, strong anti-electromagnetic interference ability, corrosion resistance, explosion-proof, simple structure, small size and light weight. Therefore, they have excellent application prospects and are widely used in aviation, aerospace, navigation, nuclear industry, electric power, medical treatment, petrochemical, mining, metallurgy and other industries.

[0003] The basic principle of fiber optic sensor is that the light source emits light and transmits it through the optical fiber. The intensity of the transmitted light in the optical fiber changes after passing through the physical quantity to be measured. The detector receives the light and measures the physical quantity to be measured by detecting the change in light intensity.

[0004] However, because fiber optic sensors use light intensity as the carrier of information, they are inevitably affected by factors such as light source power fluctuations and changes in fiber optic transmission losses. Therefore, in order to obtain high-precision and high-stability measurements, effective measures must be taken to overcome this influence.

[0005] At the same time, fiber optic sensors will also produce certain differences during the production process, that is, the loss of the light path from the light source to the detector is inconsistent. This difference leads to different outputs at the detector end when the light source output power is the same and the physical quantity to be measured is the same. Different detector outputs are not convenient for circuit processing, data collection and algorithm calculation, resulting in differences in product quality, consistency and stability, which in turn easily brings risks.

[0006] The disclosure of the above-mentioned background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above-mentioned content has been disclosed on the filing date of this patent application, the above-mentioned background technology should not be used to evaluate the novelty and creativity of this application. Summary of the invention

[0007] The object of the present invention is to provide a fiber optic sensor difference compensation system and method to solve at least one of the above-mentioned background technical problems.

[0008] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0009] A fiber optic sensor difference compensation system comprises a fiber optic sensor, a compensation unit and a detection unit respectively connected to the fiber optic sensor, and a control and processing unit; wherein the fiber optic sensor comprises an optical fiber, a light source, and a light sensor; the compensation unit is connected to the light source of the fiber optic sensor to compensate for the light source; the detection unit is connected to the light sensor of the fiber optic sensor to receive a light sensor output value and transmit the light sensor output value to the control and processing unit; the control and processing unit is used to compare the light sensor output value with a standard output value, and control the compensation unit to adjust and compensate the light source of the fiber optic sensor according to the comparison result, so that the light sensor output value is consistent with the standard output value.

[0010] In some embodiments, the compensation unit includes a light source driving circuit and a light source power regulating circuit connected to the light source driving circuit; wherein the light source driving circuit is connected to the light source of the optical fiber sensor; and the light source power regulating circuit is connected to the control and processing unit.

[0011] In some embodiments, the detection unit includes a light sensing detection circuit and an analog-to-digital converter connected to the light sensing detection circuit; wherein the light sensing detection circuit is connected to the light sensor of the optical fiber sensor, receives the output of the light sensor, and transmits the light sensing output to the control and processing unit after processing by the analog-to-digital converter.

[0012] In some embodiments, the control and processing unit is also connected to a storage unit, and the standard output value is stored in the storage unit in advance. After receiving the light output value, the control and processing unit reads the standard output value in the storage unit, and compares the light output value with the standard output value, and outputs a control instruction according to the comparison result to control the compensation unit.

[0013] In some embodiments, the control and processing unit is further connected to a display unit, and the light output value is displayed in real time through the display unit.

[0014] In some embodiments, the optical fiber sensor includes a deformation sensing layer, an optical fiber disposed in the deformation sensing layer, a light source, and a light sensor.

[0015] In some embodiments, a plurality of meshes are arranged on the deformation sensing layer of the optical fiber sensor; wherein the inner surface of the deformation sensing layer is recessed to form a concave space, and convex ridges are provided in the concave space.

[0016] In some embodiments, a sensitivity enhancement structure is disposed on the outer surface of the deformation sensing layer. The sensitivity enhancement structure includes a plurality of convex points disposed at intervals. The convex points are disposed at positions on the outer surface of the deformation sensing layer corresponding to the convex ridges.

[0017] Another technical solution of the embodiment of the present invention is:

[0018] A method for compensating optical fiber sensor differences comprises the following steps:

[0019] S10, presetting a light sensing standard output value of the optical fiber sensor and storing it in a storage unit;

[0020] S20, receiving the light-sensing output value through a detection unit connected to the light sensor of the optical fiber sensor and transmitting the light-sensing output value to a control and processing unit;

[0021] S30, the control and processing unit is used to compare the light output value with the standard output value, and control the compensation unit to adjust and compensate the light source of the optical fiber sensor according to the comparison result, so that the light output value is consistent with the standard output value.

[0022] In some embodiments, the detection unit includes a light sensing detection circuit and an analog-to-digital converter connected to the light sensing detection circuit, the light sensing detection circuit is connected to the light sensing of the optical fiber sensor, receives the output of the light sensing, and transmits the light sensing output to the control and processing unit after processing by the analog-to-digital converter; the compensation unit includes a light source driving circuit and a light source power adjustment circuit connected to the light source driving circuit, the light source driving circuit is connected to the light source of the optical fiber sensor, and the light source power adjustment circuit is connected to the control and processing unit.

[0023] The beneficial effects of the technical solution of the present invention are:

[0024] Compared with the prior art, the optical fiber sensor difference compensation system and method of the present invention can avoid the problem of poor consistency of the final product caused by differences in the production process, and can improve the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a principle block diagram of a fiber optic sensor difference compensation system according to an embodiment of the present invention.

[0027] Figure 2 It is a principle block diagram of a fiber optic sensor difference compensation system according to another embodiment of the present invention.

[0028] Figure 3 1 is a three-dimensional schematic diagram of an optical fiber sensor of an optical fiber sensor difference compensation system according to an embodiment of the present invention.

[0029] Figure 4 yes Figure 3 A three-dimensional schematic diagram of an embodiment without optical fiber.

[0030] Figure 5 yes Figure 3 A three-dimensional schematic diagram from another viewing angle of the embodiment.

[0031] Figure 6 Schematic diagram of another optical fiber sensor of the optical fiber sensor difference compensation system according to the present invention.

[0032] Figure 7 yes Figure 6 A three-dimensional schematic diagram of an optical fiber sensor according to an embodiment.

[0033] Figure 8 yes Figure 7 An exploded view of a fiber optic sensor according to an embodiment.

[0034] Fig. 9 yes Figure 7 A three-dimensional diagram of the optical fiber sensor of the embodiment from another perspective.

[0035] Fig.10 is along Fig. 9 Section view in the AA direction.

[0036] Fig.11 It is a schematic diagram of the force on the convex points and ridges of the optical fiber sensor and the optical fiber in the optical fiber sensor difference compensation system according to an embodiment of the present invention.

[0037] Fig.12 is a flow chart illustrating a method for compensating optical fiber sensor differences according to another embodiment of the present invention. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for fixing or for circuit connection.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] An optical fiber sensor difference compensation system provided by an embodiment of the present invention compares the light output value of the optical fiber sensor with the standard output value, and generates a control instruction to control the light source of the optical fiber sensor according to the comparison result, thereby changing the light output value so that the light output value is consistent with the standard output value, ensuring that the consistency and stability of the optical fiber sensor product are improved, thereby improving the yield of the optical fiber sensor.

[0043] Reference Figure 1-3 As shown, as an embodiment of the present invention, a fiber optic sensor difference compensation system includes a fiber optic sensor, a compensation unit and a detection unit respectively connected to the fiber optic sensor, and a control and processing unit; wherein the fiber optic sensor includes an optical fiber, a light source, and a light sensor; the compensation unit is connected to the light source of the fiber optic sensor to compensate for the light source; the detection unit is connected to the light sensor of the fiber optic sensor to receive the light sensor output value and transmit the light sensor output value to the control and processing unit; the control and processing unit is used to compare the light sensor output value with the standard output value, and control the compensation unit to adjust and compensate the light source of the fiber optic sensor according to the comparison result, so that the light sensor output value is consistent with the standard output value.

[0044] Specifically, refer to Figure 1 As shown, the compensation unit includes a light source driving circuit and a light source power regulating circuit connected to the light source driving circuit; wherein the light source driving circuit is connected to the light source of the optical fiber sensor; and the light source power regulating circuit is connected to the control and processing unit.

[0045] The detection unit includes a light sensing detection circuit and an analog-to-digital converter connected to the light sensing detection circuit; wherein the light sensing detection circuit is connected to the light sensing of the optical fiber sensor, receives the light sensing output, and transmits the light sensing output to the control and processing unit after processing by the analog-to-digital converter.

[0046] In some embodiments, the control and processing unit is further connected to a storage unit, and the standard output value is stored in the storage unit in advance. After receiving the light output value, the control and processing unit reads the standard output value in the storage unit, compares the light output value with the standard output value, and outputs a control instruction according to the comparison result to control the compensation unit. The storage unit can be a ROM (Read Only Memory) program memory, a RAM (Random Access Memory) random access memory, a Flash memory, etc., which is not particularly limited in the embodiments of the present invention.

[0047] In some embodiments, the control and processing unit is further connected to a display unit, and the light output value is displayed in real time through the display unit.

[0048] Reference Figure 2 As shown, as another embodiment of the optical fiber sensor difference compensation system, the optical fiber sensor difference compensation system detects whether there is a difference in the optical fiber sensor through an external detection module. If there is a difference, a control instruction is sent to the control and processing unit through an interactive port, and the control and processing unit controls the compensation unit to compensate the light source. Specifically, the optical fiber sensor difference compensation system includes an external detection module, the control and processing unit is connected to an interactive port, and the external detection module includes an external interactive port, an external processor, and a display unit; the light output value of the optical fiber sensor is transmitted to the external detection module through the interactive port, and the external detection module compares the light output value with the standard output value through the external processor, and sends a control instruction to the control and processing unit through the external interactive port according to the comparison result, and the control and processing unit controls the compensation unit according to the control instruction.

[0049] Specifically, during the production of the optical fiber sensor, the standard output value of the optical fiber sensor light is preset, and the control and processing unit transmits the light output value to the external processor of the external detection module through the interactive port and the external interactive port of the external detection module. The external processor compares the light output value with the preset standard output value, generates a control instruction according to the comparison result, and transmits the control instruction to the control and processing unit through the external interactive port. The control and processing unit controls the light source adjustment circuit according to the control instruction to adjust the light power of the light source, thereby changing and adjusting the light output value, so that the light output value remains equal to the standard output value, thereby improving the consistency of the optical fiber sensor product. In some embodiments, the display is used to display relevant information such as the light output value in real time.

[0050] Because there will be certain differences in the sensor production process, that is, the loss of the optical path from the light source to the photosensor is inconsistent. This difference is reflected in the same light source output power, but different photosensor outputs. Different photosensor outputs are not convenient for circuit processing, data collection and algorithm calculation, which will bring risks to product quality, consistency and stability. The light source power can be changed by adjusting the current of the light source through the light source power adjustment circuit, thereby improving the yield of product quality. Specifically, the adjustment can be carried out in the following way: assemble a number of optical fiber sensors, determine the standard output value of the light sensor to be A (assuming that the standard output value A is proportional to the light source power); adjust the light source through the compensation unit, reduce the light source power of the optical fiber sensor whose light sensor output value is greater than A; and increase the light source power of the optical fiber sensor whose light sensor output value is less than A. Thereby, a consistent optical fiber sensor product is obtained, and the yield of the optical fiber sensor is improved.

[0051] Reference Figure 3-Figure 5 As shown, the optical fiber sensor includes a deformation sensing layer 10 and an optical fiber 11; specifically, a plurality of meshes 101 are arranged on the deformation sensing layer 10; wherein, a concave space 102 is provided in the inner surface of the deformation sensing layer 10, and a convex ridge 103 is provided in the concave space 102; a sensitivity enhancement structure is provided on the outer surface of the deformation sensing layer 10, and the sensitivity enhancement structure includes a plurality of convex points 105 arranged at intervals, and the convex points 105 are arranged at positions corresponding to the convex ridges 103 on the outer surface of the deformation sensing layer 10; the optical fiber 11 is placed on the convex ridges 103 in the concave space in a curved shape, and the two ends of the optical fiber 11 are fixed by the wire grooves 104 arranged on the inner side of the deformation sensing layer 10 and extend outward. It can be understood that the sensitivity enhancement structure is not limited to the structure using convex points, and other structures that are convenient for increasing the sensitivity of the sensor are also possible, which are not described one by one in the embodiments of the present invention.

[0052] By setting a plurality of meshes 101 on the deformation sensing layer 10, the deformation sensing layer 10 as a whole forms a mesh structure. At the same time, by setting a concave space 102 on the inner surface of the deformation sensing layer 10, the thickness of the deformation sensing layer 10 is reduced, thereby increasing the elasticity of the deformation sensing layer 10 and further improving the sensitivity of the optical fiber sensor 100. In addition, by setting the concave space 102, the ridge 103 is set in the concave space 102, which facilitates the miniaturization design of the optical fiber sensor. In the present embodiment, the mesh 101 is elliptical. It can be understood that in some embodiments, the mesh 101 can also be other irregular shapes. There is no special limitation in the embodiments of the present invention. No matter what shape is adopted, as long as it does not deviate from the main purpose of the invention, it belongs to the scope of protection of the present invention.

[0053] The ridges 103 are arranged in a straight strip shape between a plurality of meshes 101, and the cross section of the ridges 103 is a triangle, so that when the optical fiber 11 is placed on the ridges 103, the contact area between the optical fiber 11 and the ridges 103 is minimized, thereby ensuring that when subjected to external pressure, the pressure per unit area on the optical fiber 11 is maximized, that is, the sensitivity of the optical fiber sensor is enhanced. In an embodiment of the present invention, the height of the ridges 103 is set to have a difference with the depth of the depression of the concave space 102, and the difference is equal to the diameter of the optical fiber 11, so that when the optical fiber 11 is placed on the ridges 103, it can remain flush with the plane where the inner surface of the sensing layer is located. It is understandable that in some embodiments, the ridges 103 can also be arranged in a curved strip shape between a plurality of meshes 101.

[0054] When the optical fiber sensor of the embodiment of the present invention is used, a coating layer is attached to the surface of the deformation sensing layer 10, and the coating layer is made of a flexible material, such as a soft cushion. Figure 8 As shown, the soft pad 122 is used as an example for explanation, where it is assumed that the pressure F is evenly distributed on the soft pad 122. Due to the presence of the convex point 105, the soft pad 122 around the convex point 105 will be arched to form a gap, and the pressure in the corresponding area above the gap will be concentrated on the convex point 105, and the pressure on the convex point 105 will be greatly increased. By adding the convex point structure, the pressure distribution of the deformation sensing layer 10 is changed, the pressure in the intersection area of ​​the optical fiber 11 and the convex ridge 103 is increased, and the pressure in other areas is reduced. At the same time, by setting the convex ridge 103 to a structure with a triangular cross-section, the area of ​​the contact point between the optical fiber and the convex ridge is reduced, thereby increasing the pressure on the optical fiber out of the contact point, thereby enhancing the sensitivity of the sensor.

[0055] For the sake of convenience, the embodiment of the present invention is described by taking the deformation sensing layer in a square shape as an example. It should be noted that the present invention does not impose any limitation on the shape of the deformation sensing layer, which may be a square or any other irregular shape.

[0056] Reference Figure 6-11 The structure of a double-layer sensing layer is shown. As an optical fiber sensor 200 according to an embodiment of the present invention, the optical fiber sensor 200 includes two deformation sensing layers 20, 21 and an optical fiber 22. Specifically, the deformation sensing layer includes a first deformation sensing layer 20 and a second deformation sensing layer 21. The first deformation sensing layer 20 is provided with a plurality of first meshes 201. The inner side of the first deformation sensing layer 20 is recessed with a concave space 202, and the convex ridge 203 is arranged in the concave space 202. The outer surface of the first deformation sensing layer 20 is provided with a sensitivity enhancement structure, and the sensitivity enhancement structure includes a plurality of convex points 205 arranged at intervals, and the convex points 205 are arranged at positions corresponding to the convex ridges 203 on the outer surface of the first deformation sensing layer 20. A wire groove 204 is provided at one end of the inner side of the first deformation sensing layer 20 for fixing the optical fiber 22.

[0057] The size of the second deformation sensing layer 21 is consistent with that of the first deformation sensing layer 20 to ensure that the two can completely overlap to form a complete whole after being installed together. A plurality of second mesh holes 211 are arranged on the second deformation sensing layer 21; the inner side of the second deformation sensing layer 21 is recessed with a concave space (not shown), and the convex ridge 213 is arranged in the concave space; the outer surface of the second deformation sensing layer 21 is provided with a sensitivity enhancement structure, and the sensitivity enhancement structure includes a plurality of convex points 215 arranged at intervals, and the convex points 215 are arranged on the outer surface of the second deformation sensing layer 21 at positions corresponding to the convex ridges 213. A wire groove is provided at one end of the inner side of the second deformation sensing layer 21 for fixing the optical fiber 22.

[0058] The optical fiber 22 is bent in an irregular shape and installed between the first deformation sensing layer 20 and the second deformation sensing layer 21. Both ends of the optical fiber 22 are fixed through the wire grooves on the first and second deformation sensing layers and extend outward. In this embodiment, the height of the ridges 203 and 213 is set to have a difference with the depth of the concave space, and the difference is equal to half the diameter of the optical fiber. Therefore, when the first deformation sensing layer and the second deformation sensing layer are installed together, the optical fiber can tightly abut the ridges 203 and 213 on the first and second deformation sensing layers, and be tightly installed and fixed between the first deformation sensing layer 20 and the second deformation sensing layer 21.

[0059] Reference Figure 7-Figure 11As shown, in this embodiment, when the first and second deformation sensing layers 20, 21 are installed and matched together, the protrusions 205 and ridges 203 on the first deformation sensing layer 20 and the protrusions 215 and ridges 213 on the second deformation sensing layer 21 are arranged in a staggered manner; wherein, the ridges 203 on the first deformation sensing layer 20 correspond to the meshes 211 on the second deformation sensing layer 21, and correspondingly, the meshes 201 on the first deformation sensing layer 20 correspond to the ridges 213 on the second deformation sensing layer 21.

[0060] Reference Figure 6 As shown, it also includes a PCB circuit board 70, wherein the light source 4 is connected to the PCB circuit board through a structural member 500, and the light sensor 60 is connected to the PCB circuit board through a structural member 500; in this embodiment, the optical fiber 22 is a multi-fold bending structure, which is arranged between the first deformation sensing layer 20 and the second deformation sensing layer 21. Among them, the first deformation sensing layer 20 and the second deformation sensing layer 21 are provided with a side of the sensitivity enhancement structure in contact with the outside, and the side provided with the convex ridges 203 and 213 is in contact with the optical fiber 22 through the convex ridges 203 and 213. When external deformation or pressure acts on the protrusions 205, 215 of the sensitivity enhancement structure, the first deformation sensing layer 20 and / or the second deformation sensing layer 21 is deformed, and the deformation is further transmitted to the optical fiber 22 through the ridges 203, 213 of the first deformation sensing layer 20 and / or the second deformation sensing layer 21, so that the optical fiber 22 is slightly bent and deformed, resulting in optical power loss. The optical power loss is detected by a signal detector and converted into an electrical signal, and the electrical signal is processed to obtain the external change parameters.

[0061] Reference Fig.10 As shown, compared with the structure of a single-layer sensing layer, in the double-layer sensing layer structure, both sides of the optical fiber 22 are arranged to contact the ridges 203 and 213 at staggered intervals, and the contact points between the optical fiber 22 and the ridges are dense, thereby greatly improving the sensitivity and test accuracy of the optical fiber sensor.

[0062] Reference Fig.12 As shown, as another embodiment of the present invention, a method for compensating optical fiber sensor differences is also provided, the method comprising the following steps:

[0063] S10, presetting a light sensing standard output value of the optical fiber sensor and storing it in a storage unit;

[0064] Specifically, a plurality of optical fiber sensors are pre-assembled, and the light sensing standard output value is determined according to the light sensing output values ​​of the plurality of optical fiber sensors.

[0065] S20, receiving the light-sensing output value through a detection unit connected to the light sensor of the optical fiber sensor and transmitting the light-sensing output value to a control and processing unit;

[0066] Among them, the detection unit includes a light sensing detection circuit and an analog-to-digital converter connected to the light sensing detection circuit; wherein the light sensing detection circuit is connected to the light sensing of the optical fiber sensor, receives the output of the light sensing, and transmits the light sensing output to the control and processing unit after processing by the analog-to-digital converter.

[0067] S30, the control and processing unit is used to compare the light output value with the standard output value, and control the compensation unit to adjust and compensate the light source of the optical fiber sensor according to the comparison result, so that the light output value is consistent with the standard output value.

[0068] Wherein, the compensation unit includes a light source driving circuit and a light source power regulating circuit connected to the light source driving circuit; wherein, the light source driving circuit is connected to the light source of the optical fiber sensor; and the light source power regulating circuit is connected to the control and processing unit.

[0069] It should be noted that the monitoring method of this embodiment is implemented by using the optical fiber sensor difference compensation system of any of the technical solutions of the aforementioned embodiments, so the specific implementation method refers to the description in the aforementioned embodiment and will not be repeated here.

[0070] The present invention also proposes a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the optical fiber sensor difference compensation method of the above embodiment scheme is implemented. The storage medium can be implemented by any type of volatile or non-volatile storage device, or a combination thereof.

[0071] Embodiments of the present invention may include or utilize a special or general-purpose computer including computer hardware, as discussed in more detail below. Embodiments within the scope of the present invention also include physical and other computer-readable media for carrying or storing computer-executable instructions and / or data structures. Such computer-readable media can be any available media that can be accessed by a general or special-purpose computer system. The computer-readable medium that stores computer-executable instructions is a physical storage medium. The computer-readable medium that carries computer-executable instructions is a transmission medium. Therefore, by way of example and not limitation, embodiments of the present invention may include at least two distinct computer-readable media: a physical computer-readable storage medium and a transmission computer-readable medium.

[0072] An embodiment of the present application also provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, at least the optical fiber sensor difference compensation method described in the aforementioned embodiment scheme is implemented.

[0073] It is to be understood that the above content is a further detailed description of the present invention in conjunction with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, it can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be deemed to belong to the protection scope of the present invention. In the description of this specification, the description of reference terms "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention.

[0074] In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples without contradicting each other. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and modifications can be made herein without departing from the scope defined by the appended claims.

[0075] Furthermore, the scope of the present invention is not intended to be limited to the particular embodiments of the processes, machines, manufactures, compositions of matter, means, methods, and steps described in the specification. One of ordinary skill in the art will readily appreciate that the above disclosures, processes, machines, manufactures, compositions of matter, means, methods, or steps, currently existing or to be developed, may be utilized to perform substantially the same functions as the corresponding embodiments described herein or to obtain substantially the same results as the embodiments described herein. Therefore, the appended claims are intended to include within their scope such processes, machines, manufactures, compositions of matter, means, methods, or steps.

Claims

1. A fiber optic sensor difference compensation system, characterized in that: The optical fiber sensor comprises a compensation unit and a detection unit respectively connected to the optical fiber sensor, and a control and processing unit; wherein the optical fiber sensor comprises an optical fiber, a light source, and a light sensor; the compensation unit is connected to the light source of the optical fiber sensor to compensate for the light source; the detection unit is connected to the light sensor of the optical fiber sensor to receive a light sensor output value and transmit the light sensor output value to the control and processing unit; the control and processing unit is used to compare the light sensor output value with a standard output value, and control the compensation unit to adjust and compensate the light source of the optical fiber sensor according to the comparison result, so that the light sensor output value is consistent with the standard output value; The optical fiber sensor comprises a deformation sensing layer, an optical fiber arranged in the deformation sensing layer, a light source, and a light sensor; A plurality of meshes are arranged on the deformation sensing layer of the optical fiber sensor; wherein the inner surface of the deformation sensing layer is sunken to form a concave space, and a convex ridge is provided in the concave space; the optical fiber is placed on the convex ridge in the concave space in a curved shape.

2. The optical fiber sensor difference compensation system according to claim 1, characterized in that: The compensation unit includes a light source driving circuit and a light source power regulating circuit connected to the light source driving circuit; wherein the light source driving circuit is connected to the light source of the optical fiber sensor; and the light source power regulating circuit is connected to the control and processing unit.

3. The optical fiber sensor difference compensation system according to claim 2, characterized in that: The detection unit includes a light sensing detection circuit and an analog-to-digital converter connected to the light sensing detection circuit; wherein the light sensing detection circuit is connected to the light sensing of the optical fiber sensor, receives the light sensing output, and transmits the light sensing output to the control and processing unit after processing by the analog-to-digital converter.

4. The optical fiber sensor difference compensation system according to claim 3, characterized in that: The control and processing unit is also connected to a storage unit, and the standard output value is stored in the storage unit in advance. After receiving the light-sensing output value, the control and processing unit reads the standard output value in the storage unit, and compares the light-sensing output value with the standard output value, and outputs a control instruction according to the comparison result to control the compensation unit.

5. The optical fiber sensor difference compensation system according to claim 4, characterized in that: The control and processing unit is also connected to a display unit, and the light output value is displayed in real time through the display unit.

6. The optical fiber sensor difference compensation system according to claim 1, characterized in that: The outer surface of the deformation sensing layer is provided with a sensitivity enhancement structure, and the sensitivity enhancement structure includes a plurality of convex points arranged at intervals, and the convex points are arranged at positions on the outer surface of the deformation sensing layer corresponding to the convex ridges.

7. A method for compensating optical fiber sensor differences, characterized in that: The steps include: S10, presetting a light sensing standard output value of the optical fiber sensor and storing it in a storage unit; S20, receiving the light-sensing output value through a detection unit connected to the light sensor of the optical fiber sensor and transmitting the light-sensing output value to a control and processing unit; S30, the control and processing unit is used to compare the light output value with the standard output value, and control the compensation unit to adjust and compensate the light source of the optical fiber sensor according to the comparison result, so that the light output value is consistent with the standard output value; The optical fiber sensor comprises a deformation sensing layer, an optical fiber arranged in the deformation sensing layer, a light source, and a light sensor; A plurality of meshes are arranged on the deformation sensing layer of the optical fiber sensor; wherein the inner surface of the deformation sensing layer is sunken to form a concave space, and a convex ridge is provided in the concave space; The detection unit includes a light sensing detection circuit and an analog-to-digital converter connected to the light sensing detection circuit, the light sensing detection circuit is connected to the light sensing of the optical fiber sensor, receives the output of the light sensing, and transmits the light sensing output to the control and processing unit after processing by the analog-to-digital converter; the compensation unit includes a light source driving circuit and a light source power adjustment circuit connected to the light source driving circuit, the light source driving circuit is connected to the light source of the optical fiber sensor, and the light source power adjustment circuit is connected to the control and processing unit.

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