Optical time domain reflectometer test box for smart phone
By integrating the optical time domain reflector into the test box and leveraging the data processing capabilities of the smartphone, the existing equipment is solved by solving the problems of large size and high power consumption, and low-power and convenient optical time domain reflector testing is achieved.
Patent Information
- Application Number
- CN202422145530.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing optical time domain reflector equipment is large in size, high in price, high in power consumption, slow in calculation speed, poor data analysis capabilities, and inability to forward data archive.
The optical time domain reflector is integrated into a test box, including the optical time domain reflector laser emission module, signal reception module, power management module, interface module and microcontroller unit module, and data processing and display through a smartphone, leveraging the powerful data processing and storage capabilities of the smartphone to achieve low power consumption power supply and data communication.
It realizes the integration of optical time domain reflectors, which are small in size and light in weight, compatible with smartphone power supply, low power consumption, supports long-term testing, and has strong data processing capabilities, and convenient display of results.
Smart Images
Figure CN223093776U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical fiber detection equipment, and particularly relates to an optical time domain reflectometer test box for a smart phone. Background Art
[0002] An optical time domain reflectometer (OTDR) is an important test instrument in an optical fiber communication system. It is an instrument that can understand several performances of an optical fiber, such as uniformity, defects, fractures, joint coupling, etc. through the analysis of a measurement curve. It is made according to the principles of optical backscattering and Fresnel reflection and can be used to measure optical fiber attenuation, joint loss, locate optical fiber fault points, and understand the loss distribution of an optical fiber along its length.
[0003] Existing optical time domain reflectometers are mostly imported equipment with a traditional architecture, which are expensive to purchase, large in volume, and have problems such as high power consumption, slow calculation speed, poor data analysis ability, small data storage capacity, and inability to forward data for archiving. Summary of the Utility Model
[0004] In view of some or all of the problems in the prior art, the utility model provides an optical time domain reflectometer test box for a smart phone, wherein the smart phone includes a third interface module and a data processing module. The third interface module is configured to be connected to a second interface module through a second connection line, and the data processing module is configured to perform data processing on digital signal data and display the processing result. The test box includes:
[0005] An optical time domain reflectometer laser emission module, configured to emit a laser pulse for optical time domain reflectometer testing;
[0006] An optical time domain reflectometer signal receiving module, configured to receive the reflected signal of the laser pulse, convert the reflected signal into digital signal data, and transmit it to a micro control unit module;
[0007] A power conversion management module, configured to automatically identify and switch the power supply path and adjust to a low power consumption mode in the idle state of the test box;
[0008] A first interface module, configured to be connected to an external charging device through a first connection line;
[0009] A second interface module, configured to be connected to a smart phone to perform communication or power supply; and
[0010] A micro control unit module, configured to send control instructions to the optical time domain reflectometer laser emission module, the optical time domain reflectometer signal receiving module, the power conversion management module, and the second interface module.
[0011] Further, the optical time domain reflectometer signal receiving module converts the reflected signal into electrical signal data, performs amplification and filtering processing on the electrical signal data, converts the processed electrical signal data into digital signal data using an analog-to-digital converter, and transmits the digital signal data to the micro control unit module using a field programmable gate array.
[0012] Further, the power conversion management module automatically identifies and switches the power supply path, including:
[0013] When only the second interface module of the test box is connected to the third interface module of the smart phone, the test box obtains electric energy from the smart phone;
[0014] When the first interface module of the test box is connected to an external charging device, the test box obtains electric energy from the external charging device.
[0015] Further, the second interface module is connected to the smart phone and performs communication, including:
[0016] The micro control unit module implements the USB CDC protocol internally and communicates with the smart phone using the USB port of the micro control unit module; or
[0017] The micro control unit module includes a serial port, and the test box includes a serial port to USB chip. After the test box is connected to the smart phone, the micro control unit module negotiates with the smart phone for testing, and automatically obtains the best communication baud rate after testing to perform the communication between the test box and the smart phone.
[0018] Further, the second interface module is connected to the smart phone and performs power supply, including: using the OTG of the smart phone to supply power to the test box.
[0019] Further, the first interface module includes a TYPE C interface; and / or
[0020] The second interface module includes a TYPE C interface; and / or
[0021] The third interface module includes a TYPE C interface.
[0022] Further, the data processing module includes optical time domain reflectometer test software. According to requirements, set the mode, time, distance, and accuracy of the optical time domain reflectometer test on the optical time domain reflectometer test software, perform data processing on the digital signal data using the optical time domain reflectometer test software, and display the processing results.
[0023] Further, when the optical time domain reflectometer test software detects an update of the test box firmware, it reminds the user to perform a firmware upgrade on the test box.
[0024] Compared with the prior art, the present utility model has the following advantages:
[0025] 1. The optical time domain reflectometer test box for a smart phone provided by the present utility model integrates an optical time domain reflectometer (Optical Time Domain Reflectometer, OTDR) into the test box. The test box itself does not have a battery, is small in size, light in weight, and safe for storage and transportation.
[0026] 2. The optical time domain reflectometer test box for a smart phone provided by the present utility model installs the optical time domain reflectometer test software on the smart phone. By utilizing the powerful data processing and data storage capabilities of the smart phone, and only using a connecting cable to connect the test box to the smart phone, functions such as power supply, OTDR test, data communication, data processing, and result display can be completed after connection.
[0027] 3. The optical time domain reflectometer test box for a smart phone provided by the present utility model is compatible with the OTG power supply of the smart phone when powered by the smart phone, and realizes low power consumption through low-power devices and the power management of the microcontroller unit.
[0028] 4. The optical time domain reflectometer test box for a smart phone provided by the present utility model only conducts communication between the smart phone and the test box when powered by an external charging device, which can save the battery power of the phone and ensure the long-time test requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] To further clarify the above and other advantages and features of the embodiments of the present utility model, more specific descriptions of the embodiments of the present utility model will be presented with reference to the drawings. It can be understood that these drawings only depict typical embodiments of the present utility model and will not be considered as a limitation to its scope. In the drawings, for clarity, the same or corresponding components will be denoted by the same or similar reference numerals.
[0030] Figure 1 FIG. shows a schematic diagram of an embodiment of the optical time domain reflectometer test box for a smart phone of the present utility model;
[0031] Figure 2 FIG. shows a schematic diagram of an embodiment of the operation method of the optical time domain reflectometer test box for a smart phone of the present utility model; and
[0032] Figure 3 FIG. shows a schematic diagram of another embodiment of the operation method of the optical time domain reflectometer test box for a smart phone of the present utility model. Detailed implementation manners
[0033] In the following description, the present utility model is described with reference to various embodiments. However, those skilled in the art will recognize that the embodiments can be implemented without one or more specific details or in combination with other alternative and / or additional methods or components. In other cases, well-known structures or operations are not shown or described in detail so as not to obscure the inventive points of the present utility model. Similarly, for purposes of explanation, specific numbers and configurations are set forth in order to provide a thorough understanding of the embodiments of the present utility model. However, the present utility model is not limited to these specific details.
[0034] In this specification, the reference to "one embodiment" or "the embodiment" means that the specific features, structures or characteristics described in connection with the embodiment are included in at least one embodiment of the present utility model. The phrase "in one embodiment" appearing throughout this specification does not necessarily all refer to the same embodiment.
[0035] It should be noted that it should also be understood that in the embodiments of the present utility model, the terms "comprising", "including", "having", "containing" and / or "including" when used in this specification mean the presence of the stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof.
[0036] In this specification, unless otherwise specified, "first" and "second" are only used for differential description, do not include differences in size, and should not be construed as indicating or implying relative importance.
[0037] In this specification, the quantifiers "a plurality of" and "many" refer to one or more than one element.
[0038] It should be noted that the embodiments of the present utility model describe the method steps in a specific order. However, this is only for the purpose of explaining the specific embodiment and does not limit the order of the steps. On the contrary, in different embodiments of the present utility model, the order of the steps can be adjusted according to actual requirements.
[0039] In the present utility model, each module of the system according to the present utility model can be implemented using software, hardware, firmware, or a combination thereof. When a module is implemented using software, the functions of the module can be realized through a computer program flow. For example, the module can be implemented by a code segment (such as a code segment in languages like C, C++) stored in a storage device (such as a hard disk, memory, etc.), where when the code segment is executed by a processor, the corresponding functions of the module can be realized. When a module is implemented using hardware, the functions of the module can be realized by setting the corresponding hardware structure. For example, the functions of the module can be realized by hardware programming of programmable devices such as field programmable gate arrays (FPGAs), or by designing an application specific integrated circuit (ASIC) including multiple electronic devices such as transistors, resistors, and capacitors. When a module is implemented using firmware, the functions of the module can be written in a read-only memory such as an EPROM or EEPROM of the device in the form of program code, and when the program code is executed by a processor, the corresponding functions of the module can be realized. Additionally, certain functions of the module may need to be realized by separate hardware or in cooperation with the hardware. For example, the detection function is realized by corresponding sensors (such as proximity sensors, acceleration sensors, gyroscopes, etc.), the signal emission function is realized by corresponding communication devices (such as Bluetooth devices, infrared communication devices, baseband communication devices, Wi-Fi communication devices, etc.), the output function is realized by corresponding output devices (such as displays, speakers, etc.), and so on.
[0040] The following clearly and completely describes the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.
[0041] Figure 1 The figure shows a schematic diagram of an embodiment of an optical time domain reflectometer test box for a smart phone according to the present utility model. As Figure 1 shown, the optical time domain reflectometer test box for a smart phone includes a test box 100 and a smart phone 200. The test box 100 includes an optical time domain reflectometer laser emission module 101, an optical time domain reflectometer signal reception module 102, a power conversion management module 103, a first interface module 104, a second interface module 105, and a microcontroller unit (MCU) module 106. The smart phone 200 includes a third interface module 201 and a data processing module 202. In an embodiment of the present utility model, the smart phone 200 is preferably an Android smart phone. Figure 2 The figure shows a schematic diagram of an embodiment of an operation method of an optical time domain reflectometer test box for a smart phone according to the present utility model. As Figure 2 shown, the test box 100 and the smart phone 200 are connected by a second connection line 302. Figure 3Schematic diagram showing another embodiment of the operation method of the optical time domain reflectometer test box for a smart phone according to the present utility model. As Figure 3 shown, the test box 100 is connected to an external charging device 300 through a first connection line 301, and the first connection line 301 connects the first interface module 104 and the fourth interface module 303.
[0042] The optical time domain reflectometer laser emission module 101 emits laser pulses for optical time domain reflectometer testing. In an embodiment of the present utility model, the optical time domain reflectometer laser emission module includes a pulsed laser, and the wavelength of the emitted laser pulses can be 850 nanometers or 1300 nanometers or 1310 nanometers or 1550 nanometers.
[0043] The optical time domain reflectometer signal receiving module 102 receives the reflected signals of the laser pulses, converts the reflected signals into electrical signal data, performs amplification and filtering processing on the electrical signal data, uses an analog-to-digital converter to convert the processed electrical signal data into digital signal data, and uses a field programmable gate array to transmit the digital signal data to the micro control unit module. The digital signal data is the test data. In an embodiment of the present utility model, the optical time domain reflectometer signal receiving module includes an amplifier filter and an analog-to-digital converter.
[0044] The power conversion management module 103 performs low power consumption management on the overall power supply of the test box. The input voltage of the test box is 5V, and the input current is less than 0.5A. The test box is adjusted to the low power consumption mode in the idle state. The power supply path includes a first power supply path and a second power supply path. The second power supply path is as follows: when only the second interface module of the test box is connected to the third interface module of the smart phone, the power conversion management module automatically recognizes and uses the smart phone to supply power to the test box. The first power supply path is as follows: when the first interface module of the test box is connected to an external charging device, the power conversion management module automatically recognizes and switches the power supply path to the external charging device to supply power to the test box.
[0045] The first interface module 104 can be connected to an external charging device through a first connection line. In an embodiment of the present utility model, the external charging device can be a power bank or a power adapter. In an embodiment of the present utility model, the first interface module includes a USB interface, and the USB interface can be a TYPE C interface.
[0046] The second interface module 105 can be connected to the smart phone through a second connection line to perform communication or power supply. In an embodiment of the present utility model, the second interface module includes a USB interface, and the USB interface can be a TYPE C interface.
[0047] The second interface module is connected to the smart phone. The communication can be carried out in two ways: Way 1, the USB CDC protocol is implemented inside the microcontroller unit module, and the USB port of the microcontroller unit module is used to communicate with the smart phone; Way 2, the microcontroller unit module includes a serial port, and the test box includes a serial port to USB chip. After the test box is connected to the smart phone, the microcontroller unit module negotiates with the smart phone for testing, and automatically obtains the best (i.e., the highest speed and no error code or few error codes) communication baud rate after the test to perform the communication between the test box and the smart phone. In an embodiment of the present invention, the serial port to USB chip can be a CH340 chip, a CH341 chip or an FT232 chip.
[0048] The second interface module is connected to the smart phone to perform power supply, including: after the test box is connected to the smart phone, the test box is used as an external device of the smart phone, and the OTG of the smart phone is used to supply power to the test box, and the input current of the test box is kept below 0.5A.
[0049] The microcontroller unit module 106 is used to send control instructions to the optical time domain reflectometer laser emission module, the optical time domain reflectometer signal receiving module, the power conversion management module, and the second interface module. The microcontroller unit module controls the overall test of the optical time domain reflectometer and collects test data; when the optical time domain reflectometer is not being tested, the microcontroller unit module controls the overall power supply to enter the low power consumption state; the microcontroller unit module controls the power conversion management module to switch the power supply path; the microcontroller unit module communicates with the smart phone, receives the optical time domain reflectometer test parameter configuration sent by the smart phone, and transmits the collected test data to the smart phone.
[0050] The third interface module 201 is used to connect to the second interface module 105 through the second connection line 302. The fourth interface module 303 is used to connect to the first interface module 104 through the first connection line 301. In an embodiment of the present invention, both the third interface module and the fourth interface module include USB interfaces, and the USB interfaces can be TYPE C interfaces. After the smart phone is connected to the test box, the smart phone operating system will identify it. If the test box supports the USB protocol access of the smart phone operating system, a device node will be created in the smart phone. If the smart phone operating system does not support the access to the device of the test box, the configuration of the application end of the smart phone operating system needs to be carried out and the device node is opened. After the configuration is successful, the USBEndpoint of the USB device node can be opened, and the software of the smart phone can use the USBEndpoint to communicate with the test box.
[0051] The data processing module 202 performs data processing on the digital signal data and displays the processing result. The data processing module 202 includes an optical time domain reflectometer (OTDR) test software. After the smart phone recognizes and connects to the test box, the OTDR test software can control the test box to complete the OTDR test operation. According to requirements, test parameters such as the OTDR test mode, time, distance, and accuracy can be set on the OTDR test software. After the test is completed, the test data of the test box is received, and using the high-performance computing power of the smart phone, the OTDR test software performs data processing on the test data and displays the processing result on the UI interface. In an embodiment of the present invention, when the OTDR test software detects an update of the test box firmware version, it reminds the user to upgrade the test box firmware. After the user confirms, the upgrade of the test box firmware can be executed.
[0052] The present invention also provides an operation method for an OTDR test box for a smart phone.
[0053] As Figure 2 shown, an embodiment of the operation method is: connecting the second interface module 105 of the test box 100 to the third interface module 201 of the smart phone 200; the test box communicates with the smart phone and obtains electrical energy from the smart phone, that is, the second connection line 302 simultaneously performs communication and power supply functions; after the smart phone recognizes and connects to the test box, the smart phone sends an instruction to the test box, and the test box performs an OTDR test; the test box transmits the digital signal data to the smart phone, and the smart phone performs data processing on the digital signal data and displays the processing result on the UI interface.
[0054] As Figure 3 shown, another embodiment of the operation method is: connecting the second interface module 105 of the test box to the third interface module 201 of the smart phone, and connecting the first interface module 104 of the test box to an external charging device 300. The external charging device supplies power to the test box through the first connection line 301, and the smart phone communicates with the test box through the second connection line. When powered by the external charging device, the smart phone and the test box only communicate, which can save the phone's battery power and ensure the long-term test requirements. The first connection line can be plugged in and unplugged online without affecting the operation of the test box, and the test box can automatically recognize whether the first connection line is inserted. When the first connection line is not inserted, the smart phone supplies power to the test box through the second connection line; when the first connection line is inserted, the external charging device supplies power to the test box through the first connection line.
[0055] The optical time domain reflectometer test box for a smart phone provided by the present utility model integrates the optical time domain reflectometer into the test box. The test box itself has no battery, is small in volume, light in weight, and safe for storage and transportation. The optical time domain reflectometer test software is installed on the smart phone. By utilizing the powerful data processing and data storage capabilities of the smart phone, only a connecting line is used to connect the test box to the smart phone. After connection, functions such as power supply, OTDR test, data communication, data processing, and result display can be completed.
[0056] Although the embodiments of the present utility model are described above, it should be understood that they are presented only as examples and not as limitations. It will be obvious to those skilled in the relevant art that various combinations, modifications, and changes can be made to them without departing from the spirit and scope of the present utility model. Therefore, the breadth and scope of the present utility model disclosed herein should not be limited by the above-disclosed exemplary embodiments, but should be defined according to the technical solution of the present utility model and its equivalent replacements.
Claims
1. An optical time domain reflectometer test box for a smart phone, characterized in that, The smartphone includes a third interface module and a data processing module. The third interface module is configured to be connected to the second interface module through a second connection line, and the data processing module is configured to perform data processing on the digital signal data and display the processing result. The test box includes: An optical time domain reflectometer (OTDR) laser emission module configured to emit laser pulses for OTDR testing; An OTDR signal reception module configured to receive the reflected signal of the laser pulse, convert the reflected signal into digital signal data, and transmit the digital signal data to the micro control unit module; A power conversion management module configured to automatically identify and switch the power supply path and adjust to a low power consumption mode in the idle state of the test box; A first interface module configured to be connected to an external charging device through a first connection line; A second interface module configured to be connected to the smartphone to perform communication or power supply; and A micro control unit module configured to send control instructions to the OTDR laser emission module, the OTDR signal reception module, the power conversion management module, and the second interface module.
2. The OTDR test box for a smartphone according to claim 1, wherein the OTDR signal reception module converts the reflected signal into electrical signal data, performs amplification and filtering processing on the electrical signal data, uses an analog-to-digital converter to convert the processed electrical signal data into digital signal data, and uses a field programmable gate array to transmit the digital signal data to the micro control unit module.
3. The OTDR test box for a smartphone according to claim 1, wherein the power conversion management module automatically identifying and switching the power supply path includes: when only the second interface module of the test box is connected to the third interface module of the smartphone, the test box obtains electrical energy from the smartphone; when the first interface module of the test box is connected to an external charging device, the test box obtains electrical energy from the external charging device.
4. The OTDR test box for a smartphone according to claim 1, wherein the second interface module being connected to the smartphone to perform communication includes: implementing the USB CDC protocol inside the micro control unit module and communicating with the smartphone using the USB port of the micro control unit module; or the micro control unit module includes a serial port, the test box includes a serial port to USB chip, after the test box is connected to the smartphone, the micro control unit module negotiates with the smartphone for testing, and automatically obtains the optimal communication baud rate after testing to perform communication between the test box and the smartphone.
5. The OTDR test box for a smartphone according to claim 1, wherein the second interface module being connected to the smartphone to perform power supply includes: using the OTG of the smartphone to supply power to the test box.
6. The OTDR test box for a smartphone according to claim 1, wherein The first interface module includes a TYPE-C interface; and / or The second interface module includes a TYPE-C interface; and / or The third interface module includes a TYPE-C interface.
7. The optical time domain reflectometer test box for a smart phone according to claim 1, wherein the data processing module includes optical time domain reflectometer test software. According to requirements, set the mode, time, distance, and accuracy of the optical time domain reflectometer test on the optical time domain reflectometer test software, use the optical time domain reflectometer test software to perform data processing on the digital signal data, and display the processing results.
8. The optical time domain reflectometer test box for a smart phone according to claim 7, wherein when the optical time domain reflectometer test software detects an update of the test box firmware version, it reminds the user to perform a test box firmware upgrade.