Optical fiber specification identification device

Abstract

The utility model relates to an optical fiber specification identification device, and relates to the field of optical fiber core diameter identification, and the identification device comprises a housing which is installed on a laser, the housing comprises a through hole for an optical fiber connector to pass through, and the through hole is opposite to an optical fiber jack of the laser; different colors of the optical fiber joints respectively correspond to one optical fiber specification; the color recognition circuit board is installed on the shell, the color recognition circuit board comprises a lighting device and a color sensor for recognizing the color of the optical fiber connector, and a color collection window of the color sensor faces the optical fiber connector; and the color identification circuit board is in communication connection with a main control system of the medical laser equipment and transmits identified color data to the main control system, so that the main control system obtains corresponding optical fiber specifications through the color data. The surface of the optical fiber connector is coated with the color, the production link of the optical fiber connector is greatly simplified, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of optical fiber core diameter identification, and more specifically to an optical fiber specification identification device. Background Technology

[0002] In clinical treatment, medical laser equipment requires medical optical fibers with appropriate core diameters depending on the treatment site. The structure of fiber 1 is as follows: Figure 1 As shown, it includes an optical fiber connector 11, an optical fiber interface 12, and an optical fiber end face 13. The core diameter of the medical optical fiber 1 is the radius of the optical fiber end face 13, and common specifications are as follows:

[0003] 200um, 275um, 365um, 550um, 600um, 800um, 1000um.

[0004] However, the core diameter of fiber 1 corresponds to its maximum transmittable laser power or maximum optical pulse energy; excessive input power or pulse energy can damage the fiber. Therefore, for fiber 1, its core diameter has a corresponding limitation on the maximum transmittable laser power or pulse energy. Thus, medical laser equipment needs to collect information on the core diameter specifications of the currently used fiber and accordingly limit the maximum output laser power to ensure the normal operation of fiber 1.

[0005] In the existing technology, there are generally two methods for collecting information on the core diameter of optical fibers.

[0006] Method 1: Manual input. In this method, the device and fiber optic cable 1 are connected via fiber optic interface 12 only. A connection diagram is shown below. Figure 2 As shown, fiber optic interface 12 is connected to fiber optic port 21 of laser 2. The fiber core diameter specification is input by the operator through the human-machine interface system of the medical laser equipment. The method is simple, but the degree of automation is not high, and the addition of manual operation steps may lead to errors.

[0007] Method 2: Fiber optic core diameter specifications are identified using radio frequency identification (RFID) technology. In this method, the connection between the fiber optic cable and the medical laser equipment, in addition to... Figure 2 In addition to the same optical path connection, there is also a data transmission channel for information acquisition, the connection diagram of which is shown below. Figure 3 As shown, the system is highly automated, but a reader needs to be added to the laser output interface. The reader connects to the main control system via a serial interface and uploads the fiber optic information collected via radio frequency to the main control system. Each fiber optic connector needs to embed an electronic tag (or transponder), therefore each fiber optic connector needs to be custom-made, increasing the production and management costs of the fiber optic cables. Summary of the Invention

[0008] The application provides a fiber specification identification device, which can identify fiber specifications through automatic acquisition in a stable and reliable manner while reducing production cost.

[0009] In a first aspect, the application provides a fiber specification identification device, which comprises:

[0010] A shell is mounted on the laser, the shell comprises a through hole for the fiber joint to pass through, and the through hole is arranged opposite to the fiber socket of the laser; different colors of the fiber joint correspond to different fiber specifications respectively;

[0011] A color recognition circuit board is mounted on the shell, the color recognition circuit board comprises an illuminating device and a color sensor for identifying the color of the fiber joint, and a color collection window of the color sensor faces the fiber joint; the color recognition circuit board is in communication connection with a main control system of the medical laser equipment, and transmits the identified color data to the main control system, so that the main control system obtains the corresponding fiber specification through the color data.

[0012] In combination with the first aspect, in an implementation manner, the shell comprises a top wall and a side wall, the top wall and the side wall form a containing cavity, the fiber socket of the laser is located in the containing cavity, and the through hole is located on the top wall.

[0013] In combination with the first aspect, in an implementation manner, the through hole is a trumpet hole, which is outwardly protruded from the top wall and forms a narrow opening facing the laser, and a wide opening of the trumpet hole has a diameter greater than that of the fiber joint, and the narrow opening is in transition fit with the fiber joint.

[0014] In combination with the first aspect, in an implementation manner, the color data identified by the color sensor is binary data of the collected color of the fiber joint (11) converted into RGB sensing values.

[0015] In combination with the first aspect, in an implementation manner, the color collection window of the color sensor is a photodiode array, which comprises red filters, green filters, blue filters and transparent photodiodes, and the photodiodes are coated with an infrared blocking coating.

[0016] In combination with the first aspect, in an implementation manner, the color sensor further comprises an analog-to-digital converter for converting the current of each photodiode into binary data respectively, and a data register for storing the binary data converted by each analog-to-digital converter respectively.

[0017] In combination with the first aspect, in an implementation manner, the color collection window is arranged opposite to the fiber joint, and the distance range between the color collection window and the fiber joint is 1 mm to 30 mm.

[0018] In combination with the first aspect, in an implementation form of the lighting device, the lighting device is an LED, and the color sensor is arranged beside the LED.

[0019] In combination with the first aspect, in an implementation form of the color recognition circuit board, the color recognition circuit board is connected to the lighting device through an I 2 The I 2 The I

[0020] In combination with the first aspect, in an implementation form of the I 2 The I

[0021] The technical scheme provided by the embodiments of the present application has the beneficial effects that:

[0022] The color recognition circuit board is arranged on the shell, and the color collection window of the color sensor faces the fiber joint. The color of the fiber joint is recognized, and the recognized color data is transmitted to the main control system of the medical laser equipment. Since different colors of the fiber joint correspond to one fiber specification, the main control system can obtain the corresponding fiber specification through the color data. The color of the fiber joint is recognized through automatic collection, and then the fiber specification is recognized, thereby avoiding the manual input link, improving the work efficiency and reliability.

[0023] The main structure of the fiber specification recognition device is the color recognition circuit board, and the overall volume is greatly reduced. No electronic tag needs to be embedded on each fiber, the manufacturing cost is reduced, and the production link is reduced. The electronic part of the radio frequency response is omitted, only the color of the corresponding specification needs to be coated on the surface of the fiber joint, which greatly simplifies the production link of the fiber joint, reduces the manufacturing cost of the fiber, improves the reliability, and is very convenient in actual use of the fiber. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 The fiber structure in the background art of the present application is shown in the figure;

[0026] Figure 2 The laser and fiber connection in the background art of the present application is shown in the figure;

[0027] Figure 3 The transmission diagram of the data collected in the background of the present application;

[0028] Figure 4 The structure diagram of the optical fiber specification identification device in the embodiment of the present application;

[0029] Figure 5 The structure diagram of the color recognition circuit board in the optical fiber specification identification device of the present application;

[0030] Figure 6 The installation structure diagram of the optical fiber specification identification device in the embodiment of the present application;

[0031] Figure 7 The cross-sectional diagram of the installation structure of the optical fiber specification identification device in the embodiment of the present application;

[0032] Figure 8 The schematic diagram of the main control single-chip microcomputer of the medical laser equipment in the embodiment of the present application.

[0033] In the figure:

[0034] 1, optical fiber; 11, optical fiber joint; 12, optical fiber interface; 13, optical fiber end face;

[0035] 2, laser; 21, optical fiber socket;

[0036] 3, shell; 31, through hole; 32, top wall; 33, side wall;

[0037] 4, color recognition circuit board; 41, illuminating device; 42, color sensor; 420, photodiode array; 43, I 2 C interface; 431, data port; 432, clock port; 433, ground port; 434, voltage port. DETAILED DESCRIPTION

[0038] In order for those skilled in the art to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] First, some technical terms in the present application are explained and described in order to facilitate those skilled in the art to understand the present application.

[0040] The embodiment of the present application provides an optical fiber specification identification device, which can solve the technical problem of high production cost in the prior art by identifying the optical fiber core diameter specification through wireless radio frequency.

[0041] In one embodiment, reference is made to Figure 4 , Figure 4 This is a schematic diagram of the structure of an embodiment of the fiber optic specification identification device of this application. Figure 4 As shown, the fiber optic specification identification device includes a housing 3 and a color identification circuit board 4 mounted on the housing 3. In this application, the surface of each fiber optic connector 11 is coated with a color, and each color corresponds to a fiber optic specification. By identifying the color of the fiber optic connector 11, the fiber optic specification can be identified. In this embodiment, the fiber optic specification refers to the fiber core diameter specification. For example, the correspondence between the color of the fiber optic connector 11 and the fiber core diameter specification is shown in Table 1. After obtaining the color of the fiber optic connector 11, the corresponding fiber core diameter specification can be found by looking up Table 1.

[0042] Table 1

[0043] Fiber joint color Red Yellow Blue Green Cyan Purple White Core size 200um 275um 365um 550um 600um 800um 1000um

[0044] like Figure 4 , Figure 6 and Figure 7 As shown, the housing 3 is mounted on the laser 2 of the medical laser device. The housing 3 includes a through hole 31 through which the fiber optic connector 11 passes. The through hole 31 is arranged opposite to the fiber optic port 21 of the laser 2.

[0045] like Figure 5 , Figure 6 and Figure 7 As shown, the color recognition circuit board 4 is mounted on the housing 3. The color recognition circuit board 4 includes an illumination device 41 and a color sensor 42. The illumination device 41 provides illumination so that the color sensor 42 can more clearly collect the color of the fiber optic connector 11. In this embodiment, the illumination device uses an LED. The color sensor 42 is used to collect the color of the fiber optic connector 11 and convert it into color data. The color collection window of the color sensor 42 faces the fiber optic connector 11. The color recognition circuit board 4 is communicatively connected to the main control system of the medical laser equipment, transmitting the recognized color data to the main control system so that the main control system can obtain the corresponding fiber optic specification through the color data.

[0046] Preferably, the color recognition circuit board 4 is only 31mm×11.2mm×3mm in size, which greatly reduces the size of the recognition device and lowers the manufacturing cost.

[0047] In this embodiment, the color recognition circuit board 4 identifies the color of the fiber optic connector, converts the color data, and transmits it to the main control system of the medical laser equipment. The main control system can then identify the corresponding fiber specification based on the color of the fiber optic connector 11, eliminating the need for manual operation and improving work efficiency and reliability. Furthermore, it eliminates the need to embed electronic tags on each fiber, reducing manufacturing costs and streamlining the production process.

[0048] As shown in Figure 5 , Figure 6 and Figure 7 , the shell 3 includes a top wall 32 and a side wall 33, which enclose a containing cavity, the shell 3 is installed on the surface of the laser 2 and is fixed with the laser 2 by fixing members (such as screws), in the embodiment, the fixing members are arranged at the four corners of the shell. The fiber socket 21 of the laser 2 is located in the containing cavity; the through hole 31 is located in the top wall 32 and is arranged opposite to the fiber socket 21.

[0049] Further, as shown in Figure 7 , the through hole 31 is a horn hole, which is outwardly protruded from the top wall 32 and has a wide opening and a narrow opening, the narrow opening is directed to the laser 2, the diameter of the wide opening is greater than that of the fiber connector 11, the narrow opening is in transition fit with the fiber connector 11, the slope between the wide opening and the narrow opening can guide the insertion of the fiber connector 11, and after the fiber connector 11 is inserted into the through hole 31, it can be fixed through the narrow opening to prevent the fiber connector 11 from shaking or falling off.

[0050] As shown in Figure 5 , Figure 6 and Figure 7 , the side wall 33 of the shell 3 is provided with a slot, and the color recognition circuit board 4 is installed at the slot of the side wall 33, the color recognition circuit board 4 includes an I 2 C interface 43, the connection end of the I 2 C interface 43 is extended out of the shell 3 through the slot for connection with the medical laser equipment. When the fiber connector 11 is connected with the fiber socket 21 of the laser 2, the color recognition circuit board 4 is located at the side of the fiber connector 11, and the color collection window of the color sensor 42 is directed to the inserted fiber connector 11. Preferably, the model of the color sensor 42 is TCS3472.

[0051] As shown in Figure 7 , the color collection window of the color sensor 42 is a photodiode array 420 for collecting the color of the fiber connector 11, and the color data recognized by the color sensor 42 is the binary data converted from the RGB sensing value after collecting the color of the fiber connector 11. The photodiode array 420 includes a red filter photodiode, a green filter photodiode, a blue filter photodiode and a transparent photodiode, and the photodiodes are coated with an infrared blocking coating. In the embodiment, only three data corresponding to red, green and blue are needed.

[0052] The color sensor further comprises analog-to-digital converters (ADC) and data registers (not shown in the figure), the analog-to-digital converters are multiple, and each converts the current of the photodiode into binary data; the data registers are also multiple, and each stores the binary data converted by the analog-to-digital converter. In the embodiment, the photodiode array 420 is a 3*4 photodiode array 420, and each of the analog-to-digital converters and the data registers has four, the analog-to-digital converters simultaneously convert the amplified current of the photodiode into one 16-bit binary data, and a total of four 16-bit binary data. After completing one conversion cycle, the four 16-bit binary data are respectively stored in the four data registers.

[0053] Further, the color collection window is arranged opposite to the optical fiber joint 11, and the distance range between the color collection window and the optical fiber joint 11 is 1 mm to 30 mm, in which range, the identification of the color is relatively stable and reliable. However, since the optical fiber joint 11 is a cylinder, the surface facing the photodiode array 420 is not a plane, and when the distance between the photodiode array 420 and the optical fiber joint 11 is in the range of 1 mm to 30 mm, the reliability of the color identification is even higher. In the embodiment, in combination with the requirements of the specific structure, the distance between the photodiode array 420 and the optical fiber joint 11 is 5 mm.

[0054] As shown in Figure 5 , in the embodiment, the illuminating device 41 is an LED, which is arranged beside the color sensor 42. In order to make the illumination more uniform, the number of LEDs is two, which are arranged on the two sides of the color sensor 42, and the uniform illumination can reduce the color difference of the color collected by the color sensor, so that the collected color is more accurate.

[0055] As shown in Figure 5 and Figure 6 , the I 2 C interface 43 of the color recognition circuit board 4 comprises a data port (SDA) 431, a clock port (SCL) 432, a ground wire port (GND) 433, and a voltage port (VIN) 434. The binary data acquired by the color sensor 42 is transmitted to the main control system of the medical laser equipment through the SDA signal line by the data port 431. The clock port 432 of the color sensor 42 receives the communication clock of the main control system through the SCL signal line. In some embodiments, the main control system of the medical laser equipment can be a main control single-chip microcomputer.

[0056] As shown in Figure 8 , it is a structural schematic diagram of the main control single-chip microcomputer of the medical laser equipment, in order to highlight the key points, Figure 8 , the ports of the main control single-chip microcomputer for other aspects of control and digital signal acquisition are not shown to be connected, and only the pins for I 2 C communication are shown, and there are two pins. As shown in Figure 5 and Figure 8As shown, in this embodiment, the host single-chip microcomputer is provided with a socket J20, which also has four ports for connecting the I 2 C interface 43 of the color recognition circuit board 4. The socket J20 connects the host single-chip microcomputer pin Pin58 and the data port 431, and the socket J20 connects the host single-chip microcomputer pin Pin59 and the clock port 432. The single-chip microcomputer pin Pin58 is defined as a clock output port, for sending a communication clock to the I 2 C interface 43 through the SCL signal line. The single-chip microcomputer pin Pin59 is defined as a data output or input port, which is an output port when sending instructions, and is an input port when receiving data, for sending or receiving instructions or data to or from the I 2 C interface 43 through the SDA signal line. 2 C interface 43. The binary data is converted into a three-bit binary value by the medical laser equipment, and the corresponding core diameter specification is obtained by looking up the table according to the one-to-one correspondence between the color of the fiber joint 11 and the binary value.

[0057] The specific identification process of the core diameter specification identification device in the present application will be described below through a specific embodiment.

[0058] In this embodiment, the core diameter specification identification device is embedded in a holmium laser treatment machine for urological surgery, and is installed at the fiber insertion port 21 of the laser 2. When the fiber joint 11 passes through the through hole 31 of the shell 3 and is inserted into the fiber insertion port 21 of the laser 2, the fiber joint 11 is within the collection range of the color collection window of the color sensor 42. The I 2 C interface 43 of the color recognition circuit board 4 is connected to the host single-chip microcomputer of the holmium laser treatment machine through the socket J20.

[0059] The host single-chip microcomputer sends a color collection instruction, and the color sensor 42 collects the color of the fiber joint 11, decomposes each collected color into three color components of blue, green, and red, and quantizes them into three 16-bit binary data, respectively named color_b, color_g, and color_r, which are uploaded to the host single-chip microcomputer through the I 2 C interface 43. Considering external fiber interference and allowed color difference, the host single-chip microcomputer can process the received three 16-bit binary data as follows:

[0060] The received three binary data color_b, color_g, color_r are scaled or expanded to 255, with the maximum value of 255. The specific steps are as follows: first, find the maximum value of the three binary data, assign it to the variable color_max, and calculate the compression coefficient K = 255 / color_max. Then multiply the three data color_b, color_g, color_r by the coefficient K, and assign them to the three variables mode_b, mode_g, mode_r, respectively. The data size in the three variables is between 0 and 255.

[0061] In practice, in order to properly allow color difference, the three variables mode_b, mode_g, mode_r are subjected to a logical transformation: if greater than or equal to 128, the logical value is taken as 1; if less than 128, the logical value is taken as 0. Get the blue, green, red component logical values, named L_B, L_G, L_R respectively. Combine the three logical variables in the order of L_B, L_G, L_R, and express their logical values in binary numbers to get a 3-bit binary value. There are eight logical values for the combination of the three logical variables, corresponding to eight colors. The corresponding table is shown in Table 2.

[0062] Table 2

[0063] L_B, L_G, L_R 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 Color Black Red Green Yellow Blue Purple Cyan White

[0064] In combination with Table 1, the corresponding relationship between the blue, green, red component logical values of the color and the fiber core diameter can be obtained, and the corresponding relationship table is shown in Table 3. In this embodiment, black has no corresponding core diameter specification and can be reserved. In other embodiments, it can correspond to newly added core diameter specifications.

[0065] Table 3

[0066] Color Black Red Green Yellow Blue Purple Cyan White L_B, L_G, L_R 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 Core size 200um 275um 365um 550um 600um 800um 1000um

[0067] According to Table 3, the master microcontroller can obtain the core diameter value corresponding to the binary number, which is the core diameter specification of the accessed optical fiber. In this way, the holmium laser treatment machine also realizes automatic identification of the core diameter specification of the currently used optical fiber.

[0068] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] It should be noted that in the present application, relational terms such as "first" and "second", and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent in such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or apparatus including the element.

[0070] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A fiber optic specification identification device, characterized in that, The identification device includes: A housing (3) is mounted on a laser (2). The housing (3) includes a through hole (31) through which an optical fiber connector (11) passes. The through hole (31) is disposed opposite to the optical fiber jack (21) of the laser (2). The different colors of the optical fiber connector (11) correspond to a different optical fiber specification. A color recognition circuit board (4) is installed in the housing (3). The color recognition circuit board (4) includes an illumination device (41) and a color sensor (42) for recognizing the color of the fiber optic connector (11). The color acquisition window of the color sensor (42) faces the fiber optic connector (11). The color recognition circuit board (4) is connected to the main control system of the medical laser equipment and transmits the recognized color data to the main control system so that the main control system can obtain the corresponding fiber optic specification through the color data.

2. The fiber optic specification identification device as described in claim 1, characterized in that, The housing (3) includes a top wall (32) and a side wall (33), which form a receiving cavity. The fiber optic port (21) of the laser (2) is located in the receiving cavity, and the through hole (31) is located in the top wall (32).

3. The fiber optic specification identification device as described in claim 2, characterized in that, The through hole (31) is a horn hole, which is formed by protruding outward from the top wall (32). Its narrow opening faces the laser (2). The wide opening diameter of the horn hole is larger than the diameter of the optical fiber connector. The narrow opening is transitionally fitted with the optical fiber connector (11).

4. The fiber optic specification identification device as described in claim 1, characterized in that, The color data identified by the color sensor (42) is the color of the collected fiber optic connector (11), which is converted into binary data of RGB sensing values.

5. The fiber optic specification identification device as described in claim 4, characterized in that, The color sensor (42) has a color acquisition window that is a photodiode array (420), including a red filter, a green filter, a blue filter and a transparent photodiode, and the photodiode is coated with a coating that blocks infrared light.

6. The fiber optic specification identification device as described in claim 5, characterized in that, The color sensor (42) further includes: an analog-to-digital converter that converts the current of each photodiode into binary data, and a data register that stores the binary data converted by each analog-to-digital converter.

7. The fiber optic specification identification device as described in claim 1, characterized in that, The color acquisition window is positioned opposite to the fiber optic connector (11), and the distance between the window and the fiber optic connector (11) ranges from 1 mm to 30 mm.

8. The fiber optic specification identification device as described in claim 1, characterized in that, The lighting device (41) is an LED and is located next to the color sensor (42).

9. The fiber optic specification identification device as described in claim 1, characterized in that, The color recognition circuit board (4) is connected via I 2 The C interface (43) is connected to the main control system for communication. 2 The C interface (43) includes a data port (431), which sends color data to the main control system via an SDA signal line.

10. The fiber optic specification identification device as described in claim 9, characterized in that, The I 2 The C interface (43) includes a clock port (432), which receives the communication clock of the main control system via the SCL signal line.

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