Optical cable burial depth detection terminal and optical cable burial depth detection system
By designing a portable optical cable buried depth detection terminal and combining optical fiber sensing equipment, the problem of bulky and difficult to move existing equipment is solved, and efficient and accurate optical cable buried depth detection is achieved.
Patent Information
- Application Number
- CN202422311475.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Due to the complex and bulky structure of existing vibration wave signal detection equipment, it is difficult to frequently move and accurately position during optical cable construction and maintenance, resulting in low efficiency in optical cable burial depth detection.
An optical cable buried depth detection terminal is designed, including a housing, main control module, communication module, detector and support. The stability of the detector is improved through the support, and combined with optical fiber sensing equipment to collect vibration signals to achieve portable detection.
The equipment structure is simplified, detection sensitivity and portability are improved, labor intensity is reduced, and the efficiency and accuracy of optical cable buried depth detection are significantly improved.
Smart Images
Figure CN223308393U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of optical cable detection, and more specifically relates to an optical cable buried depth detection terminal and an optical cable buried depth detection system. Background Art
[0002] Optical cables face numerous challenges during construction and operation. One of these challenges is cable burial depth. This is crucial for protecting the cable from external damage, ensuring stable signal transmission, and complying with relevant safety regulations. Regarding cable burial depth testing, some have proposed tapping the ground above the cable under test. By detecting the vibration wave signals received by the underground cable and the vibration wave signals received on the ground, the cable's burial depth can be analyzed and calculated.
[0003] To this end, it is necessary to configure a vibration wave signal detection device. Existing vibration wave detection usually uses a seismograph. Considering that earthquakes can easily cause deformation of the earth and the position of the seismograph is usually relatively fixed, the traditional seismograph requires a close connection with the ground. In addition, since the depth of the earthquake source is usually large, in order to obtain accurate detection data, the existing seismographs often need to adopt a large and heavy structure. However, the construction and maintenance process of the optical cable often requires multiple changes in orientation to complete the positioning of the target position. In this process, it is obviously necessary to frequently move the vibration wave signal detection equipment and other related instruments and devices. In addition, the intensity of the artificially created vibration wave is small and the detection distance is short. It can be seen that the requirements for vibration wave signal detection equipment in the field of optical cable burial depth detection are completely different from those of existing seismographs.
[0004] In view of this, it is necessary to develop suitable detection terminals for the field of underground optical cable depth detection. Utility Model Content
[0005] The utility model aims to overcome at least one defect of the above-mentioned prior art and provides an optical cable buried depth detection terminal and an optical cable buried depth detection system for solving the problem of complex detection equipment structure.
[0006] The first object of the utility model is to provide an optical cable buried depth detection terminal, comprising a housing, wherein the bottom of the housing is provided with a through opening communicating with the outside;
[0007] A main control module is arranged in the housing;
[0008] A first timing module is electrically connected to the main control module and is disposed in the housing;
[0009] a communication module, electrically connected to the main control module and disposed in the housing;
[0010] The detector is electrically connected to the main control module and is disposed in the housing. The detector extends downward to the bottom of the housing and is partially exposed through the through opening.
[0011] The optical cable depth detection terminal of this scheme is used to collect the vibration wave signal that propagates along the ground after hitting the ground. Since the intensity of the vibration wave signal is relatively weak, the detector of this scheme is close to or in contact with the ground when in use to improve the detection sensitivity of the vibration wave. The first timing module is used to provide the time when the optical cable depth detection terminal detects the vibration wave signal, and the communication module can send the vibration wave data detected by the detector and the time data of the first timing module, which is convenient for operators or external equipment to compare and analyze the time of hitting the ground and the time of detecting the vibration wave signal.
[0012] Furthermore, a support member is provided inside the shell, and the support member supports the detector.
[0013] This solution improves the assembly stability of the detector through the support member, so that the detector is aligned with the through-hole, thereby facilitating its proximity to the ground during detection and improving acquisition accuracy.
[0014] Furthermore, the support member is protruding from the bottom of the shell, the support member has a hollow installation cavity, the detector is arranged in the installation cavity, and the bottom of the installation cavity is communicated with the through-hole.
[0015] The support member of this solution forms a high-strength connection with the bottom of the shell, thereby improving the support stability of the detector.
[0016] Furthermore, it also includes a filling piece with wave-guiding properties, and the filling piece is arranged in the space between the detector and the installation cavity.
[0017] This solution improves the stability of the detector installed on the support by using a filler, which helps maintain stable contact between the detector and the ground, thereby improving acquisition accuracy. In addition, the filler can also reduce the shaking of the detector and play a certain protective role.
[0018] Furthermore, the housing is further provided with a level detection module and / or an orientation detection module.
[0019] This solution can realize horizontal adjustment and azimuth calibration of the optical cable buried depth detection terminal, thereby improving the detection accuracy.
[0020] Furthermore, the shell surface is provided with a hanging component for connecting to an external pulling device.
[0021] Furthermore, a power supply module is provided inside the shell, and the power supply module is electrically connected to the main control module.
[0022] This solution uses a power supply module inside the housing to power the optical cable depth detection terminal, eliminating the need to carry an external power supply and helping to improve portability.
[0023] Furthermore, the shell has a hollow accommodating cavity, and a first partition and a second partition are provided in the accommodating cavity. The first partition and the second partition are spaced apart from each other in a direction from the top of the shell toward the bottom of the shell, and the first partition and the second partition are both connected to the shell. The space between the top of the shell and the first partition forms a first chamber, the space between the first partition and the second partition forms a second chamber, and the space between the second partition and the bottom of the shell forms a third chamber.
[0024] The first chamber is equipped with the communication module and the first timing module, the second chamber is equipped with the power supply module, the main control module is arranged on the second partition plate in the third chamber, and the detector is arranged at the bottom of the shell in the third chamber.
[0025] In this solution, the first partition and the second partition divide the internal space of the shell into three chambers from top to bottom, so that the communication module, power supply module, main control module and detector can be assembled in an orderly manner. In addition, the power supply module and the main control module are located in the middle, and the electrical components are placed on both sides. This layout makes it convenient for the wires on both sides to be routed and converged to the middle, which helps to shorten the length of the wires and simplify the internal structure layout, thereby making full use of the internal space of the shell, promoting the miniaturization of the optical cable burial depth detection terminal, and achieving the purpose of portability; wherein, the first partition supports the setting of the communication module, the second partition faces the surface of the top of the shell to support the setting of the power supply module, and the second partition faces the surface of the bottom of the shell to support the setting of the main control module, so that the internal structure is compact and a stable support connection can be achieved, which helps to improve the overall structural strength of the optical cable burial depth detection terminal. In addition, the detector located at the bottom of the shell is convenient for approaching or touching the ground surface to collect vibration wave signals. At the same time, the communication module of the first chamber is closer to the surface of the shell, which can reduce signal loss and improve the efficiency of transmitting data to external equipment after collecting vibration wave signals. Therefore, the optical cable buried depth detection terminal of this scheme is portable and can also improve the signal collection efficiency and the accuracy of data transmission to the outside.
[0026] Furthermore, the top of the shell corresponding to the position of the first chamber has an opening, and the opening is provided with a cover that can be opened and closed.
[0027] This solution provides protection for the communication module and the first timing module through the cover body. At the same time, the communication module and the first timing module can be exposed by opening the cover body during use, which is convenient for operators to check and perform related operations.
[0028] Furthermore, a winding device for winding a wire is provided in the third chamber, and the winding device is connected to the shell.
[0029] The second object of the utility model is to provide an optical cable buried depth detection system, comprising the optical cable buried depth detection terminal and an optical fiber sensing device provided with a second timing module;
[0030] The optical cable burial depth detection terminal is used to be placed on the ground above the optical cable to be tested, so as to collect a first vibration signal propagating along the ground after striking the ground just above the optical cable to be tested;
[0031] The optical fiber sensing device is used to be connected to the optical cable to be tested, so as to collect a second vibration signal generated by striking the ground directly above the optical cable to be tested and propagating into the optical cable to be tested.
[0032] In this solution, a vibration wave is generated by manually or mechanically knocking on the ground directly above the optical cable to be tested. The vibration wave propagates horizontally along the ground and is collected by the optical cable burial depth detection terminal as a first vibration signal. At the same time, the vibration wave propagates vertically downward to the optical cable to be tested, causing the optical cable to vibrate, so that the optical fiber sensing device collects a second vibration signal. Since the propagation medium of the two vibration signals is the ground in the same area, the propagation speeds of the first vibration signal and the second vibration signal are the same. By comparing the first timing module and the second timing module to obtain the time information of the first vibration signal and the time information of the second vibration signal, the distance between the knocking point and the optical cable burial depth detection terminal and the relationship with the optical cable burial depth can be obtained. Then, by adjusting the knocking position and repeatedly collecting new first vibration signals, second vibration signals, first vibration signal time data, and second vibration signal time data, specific burial depth data can be gradually obtained. The optical cable burial depth detection system of this solution is easy to assemble, does not require excavation of the ground, and avoids the use of ground detection radar, which significantly reduces the difficulty of detecting optical cables, greatly reduces detection costs, and improves detection efficiency.
[0033] Furthermore, the optical cable buried depth detection system further includes a signal processing module, and the signal processing module is connected to the optical fiber sensing device and the optical cable buried depth detection terminal.
[0034] This solution improves the analysis efficiency and accuracy of the first vibration signal and the second vibration signal through the signal processing module, thereby guiding the operator to adjust the position of the vibration generating unit, thereby improving the efficiency of obtaining the burial depth.
[0035] Compared with the prior art, the beneficial effects of the present invention are: 1) the detector is exposed on the ground of the optical cable depth detection terminal, which is convenient for contact with the ground during detection, thereby improving the sensitivity of detecting seismic waves, and accurately detecting tiny vibrations caused by hitting the ground; 2) the interior of the shell is divided into three chambers by the first partition and the second partition, and the communication module, power supply module, main control module and detector and other components are arranged in order, thereby significantly reducing the size of the optical cable depth detection terminal, improving portability, and adapting to the operational needs of the optical cable detection field; 3) the optical fiber sensing equipment and the optical cable depth detection terminal constitute an optical cable depth detection system, which significantly reduces the complexity of the equipment, reduces the labor intensity of the operators, and improves the efficiency of optical cable depth detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 The structure of Example 1 Figure 1 .
[0037] Figure 2 The structure of Example 1 Figure 2 .
[0038] Figure 3 This is an exploded view of Example 1.
[0039] Figure 4 This is a cross-sectional view of Example 1.
[0040] Figure 5 This is a structural diagram of Example 2.
[0041] Figure numerals: optical cable burial depth detection terminal 10, optical fiber sensing device 20, knocking point 30, ground 40, optical cable to be tested 50, shell 100, first partition 110, second partition 120, first chamber 130, isolation member 131, second chamber 140, third chamber 150, power port 160, cover 200, first groove 210, second groove 220, suspension component 230, base 300, support member 310, through-hole 320, filling member 330, communication module 400, power supply module 500, main control module 600, detector 700, sensing part 710, winding device 800, first timing module 900, horizontal detection module (not shown), azimuth detection module (not shown). DETAILED DESCRIPTION
[0042] The drawings in this utility model are for illustrative purposes only and are not to be construed as limiting the scope of this utility model. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the products. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.
[0043] Example 1
[0044] like Figure 1-4 As shown, this embodiment provides an optical cable buried depth detection terminal, including a housing 100, and a through opening 320 communicating with the outside is provided at the bottom of the housing 100;
[0045] The main control module 600 is provided in the housing 100;
[0046] The first timing module 900 is electrically connected to the main control module 600 and is disposed in the housing 100;
[0047] The communication module 400 is electrically connected to the main control module 600 and is disposed in the housing 100;
[0048] The detector 700 is electrically connected to the main control module 600 and is disposed in the housing 100 . The detector 700 extends downward to the bottom of the housing 100 and is partially exposed through the through opening 320 .
[0049] In specific implementation, the first timing module 900 can adopt a GPS timing module or a Beidou timing module, etc.; the communication module 400 can adopt a WIFI module, a mobile communication module, a 4G antenna, a Bluetooth module, etc.; in order to save space, the main control module 600 can adopt a main control board.
[0050] In specific use, the optical cable depth detection terminal is used to collect the shock wave signal that propagates along the ground after hitting the ground. Specifically, manual or mechanical knocking can be used. It can be understood that the shock wave signal intensity generated by the knocking method is relatively weak. Therefore, when the detector 700 of this embodiment is in use, the sensing part 710 of the detector 700 is close to or in contact with the ground to improve the detection sensitivity of the shock wave. The first timing module 900 is used to provide the time when the optical cable depth detection terminal detects the shock wave signal. The communication module 400 can send the shock wave data detected by the detector 700 and the time data of the first timing module 900, so that the operator or external equipment can compare and analyze the time of knocking on the ground and the time of detecting the shock wave signal. It can be seen that this solution only requires the detector 700 to be exposed at the bottom of the shell 100, and the first timing module 900, the communication module 400, and the main control module 600 are set. The structure is simple, which greatly simplifies the design of the optical cable depth detection terminal and is convenient for operators to carry and use.
[0051] refer to Figure 3-4 The housing 100 also includes a power supply module 500, which is electrically connected to the main control module. Powering the optical cable depth detection terminal through the power supply module 500 within the housing 100 eliminates the need for an external power supply and improves portability. In practice, the power supply module 500 can be a charging power supply, a power conversion module, a dry cell battery, or the like.
[0052] In order to realize the miniaturization layout of the optical cable buried depth detection terminal, refer to Figure 1-4 The shell 100 has a hollow accommodating cavity, in which a first partition 110 and a second partition 120 are provided. The first partition 110 and the second partition 120 are spaced apart from each other in a direction from the top of the shell 100 toward the bottom of the shell 100, and the first partition 110 and the second partition 120 are both connected to the shell 100. The space between the top of the shell 100 and the first partition 110 forms a first chamber 130, the space between the first partition 110 and the second partition 120 forms a second chamber 140, and the space between the second partition 120 and the bottom of the shell 100 forms a third chamber 150; the first chamber 130 is equipped with a communication module 400 and a first timing module 900, the second chamber 140 is equipped with a power supply module 500, the main control module 600 is arranged on the second partition plate in the third chamber 150, and the detector 700 is arranged at the bottom of the shell 100 in the third chamber 150. In order to facilitate the assembly and maintenance of the internal structure, the bottom of the shell 100 has a lower opening, which is sealed by the base 300. At this time, the through-opening 320 is opened on the base 300.
[0053] It is easy to understand that the first partition 110 and the second partition 120 divide the internal space of the shell 100 into three chambers from top to bottom, so that the communication module 400, the power supply module 500, the main control module 600 and the detector 700 can be assembled in an orderly manner, and the power supply module 500 and the main control module 600 are located in the middle, and the electrical components are placed on both sides. This layout makes it convenient for the wires on both sides to be routed and converged to the middle, which helps to shorten the length of the wires and simplify the internal structure layout, thereby making full use of the internal space of the shell 100, promoting the miniaturization of the optical cable burial depth detection terminal, and achieving the purpose of portability; wherein, the first partition 110 supports the setting of the communication module 400, the second partition 120 supports the setting of the power supply module 500 on the surface facing the top of the shell 100, and the second partition 120 supports the setting of the main control module 600 on the surface facing the base 300, so that the internal structure is compact and a stable support connection can be achieved, which helps to improve the overall structural strength of the optical cable burial depth detection terminal. In addition, the detector 700 provided on the base 300 is convenient for approaching or contacting the ground surface to collect vibration wave signals. At the same time, the communication module 400 of the first chamber 130 is closer to the surface of the shell 100, which can reduce signal loss and improve the efficiency of transmitting data to external equipment after collecting vibration wave signals. Therefore, this optical cable buried depth detection terminal can improve the signal collection efficiency and the accuracy of data transmission to the outside while being portable.
[0054] Continue to refer Figure 3 、 Figure 4The upper surface of the power supply module 500 abuts the first partition 110, and the lower surface of the power supply module 500 abuts the second partition 120. Specifically, in order to form surface contact with the surface of the power supply module 500 to improve the supporting strength, the second partition 120 adopts a plate-like structure, so that the second chamber 140 formed between the first partition 110 and the second partition 120 and the shell 100 can reliably limit the power supply module 500, improve the installation stability, and have a compact structure. In addition, the surface of the shell 100 is also provided with an electrical port 160 electrically connected to the power supply module 500.
[0055] In addition, reference Figure 4 The top of the housing 100 corresponding to the position of the first chamber 130 has an opening, and the opening is provided with an adjustable cover 200. Figure 3 、 4 To facilitate processing, the first chamber 130 is formed by a recessed depression in the top of the housing 100. In this case, the recessed structure serves as the first partition 110, and the upward opening of the recessed structure serves as the aforementioned opening. Furthermore, to prevent interference between the first timing module 900 and the communication module 400, a partition 131 is provided within the first chamber 130 to separate the first chamber 130 into two sub-chambers, each housing the communication module 400 and the first timing module 900. The cover 200 can be hinged to the housing 100, making it easy to open and close. This allows the communication module 400 and the first timing module 900 to be exposed during testing, facilitating inspection and related operations by operators. Furthermore, when not in operation, the cover 200 shields and protects the communication module 400.
[0056] refer to Figure 3-4 In order to improve the structural strength, a support member 310 is provided inside the shell 100. The support member 310 supports the detector 700. The support member 310 improves the assembly stability of the detector 700 so that the detector 700 is aligned with the through-hole 320, thereby facilitating its approach to the ground during detection and improving the acquisition accuracy.
[0057] like Figure 3 As shown, the support member 310 is convexly arranged at the bottom of the housing 100. The support member 310 has a hollow installation cavity. The detector 700 is arranged in the installation cavity. The bottom of the installation cavity is connected to the through-hole 320. In this way, the support member 310 forms a high-strength connection with the bottom of the housing 100, thereby improving the support stability of the detector 700. Figure 3 The support member 310 is integrally formed at the bottom of the shell 100. The installation cavity of the support member 310 has a lower opening at the bottom of the shell 100, and the lower opening serves as a through-hole 320. In this way, the support member 310 can provide stable support for the detector 700 with the support of the bottom of the shell 100.
[0058] refer to Figure 3-4 , also includes a filler 330 with waveguide properties, which is set in the space between the detector 700 and the installation cavity. The filler 330 improves the stability of the detector 700 set on the support 310, helps to maintain stable contact between the detector 700 and the ground during detection, thereby improving the acquisition accuracy. In addition, the filler 330 can also reduce the shaking of the detector 700 and play a certain protective role. When implementing it, continue to refer to Figure 3 The filling piece 330 is configured as a sleeve structure, and the inner cavity of the sleeve structure matches the shape of the detector 700 .
[0059] refer to Figure 1 The housing 100 is also provided with a level detection module and / or an orientation detection module. In specific implementation, the level detection module and the orientation detection module can be arranged on the surface of the housing, or can be arranged inside the housing and the detection results can be displayed on the surface of the housing. For example, the level detection module adopts a level meter, and the orientation detection module adopts a compass. In order to facilitate the operator to check, the level detection module and the orientation detection module of this embodiment are both arranged on the upper surface of the housing 100. Figure 1 、 Figure 3 Specifically, the housing 100 is provided with a first groove 210 and a second groove 220 to accommodate the horizontal detection module and the azimuth detection module, respectively. It can be appreciated that the first groove 210 and the second groove 220 can reduce the longitudinal dimensions of the housing 100, facilitating the miniaturization of the optical cable depth detection terminal, while also improving the installation stability of the horizontal detection module and the azimuth detection module. The horizontal detection module and the azimuth detection module enable horizontal adjustment and azimuth calibration of the optical cable depth detection terminal, thereby improving detection accuracy.
[0060] refer to Figure 1-4 The surface of the shell 100 is provided with a hanging component 230 for connecting an external pulling device. In specific implementation, a pair of hanging components 230 are provided, which are arranged on both sides of the width direction of the surface of the cover body 200. When in use, the pull rope is passed through the hanging component 230, so that the operator can carry the optical cable buried depth detection terminal by the pull rope, thereby improving portability.
[0061] refer to Figure 3 、 4 The third chamber 150 is also provided with a winding device 800 for winding the wire. The winding device 800 is connected to the housing 100. By setting the winding device 800 and placing the winding device 800 and the main control module 600 in the same space as the third chamber 150, the wiring length and wiring complexity of the wire are reduced, which helps to compactly arrange the internal structure of the housing 100 and promote the miniaturization of the optical cable buried depth detection terminal. In specific implementation, refer to Figure 4The winding device 800 is arranged on one side of the main control module 600 and is close to or partially overlaps with the main control module 600 to avoid interfering with the routing of the wires on the main control module 600 and shortening the distance between the wires and the winding device 800.
[0062] Example 2
[0063] like Figure 5 As shown, this embodiment provides an optical cable burial depth detection system, including the optical cable burial depth detection terminal 10 provided in Example 1 and an optical fiber sensing device 20 provided with a second timing module; the optical cable burial depth detection terminal 10 is used to be placed on the ground above the optical cable 50 to be tested, so as to collect a first vibration signal that propagates along the ground 40 after striking the ground 40 just above the optical cable 50 to be tested; the optical fiber sensing device 20 is used to be connected to the optical cable 50 to be tested, so as to collect a second vibration signal that is formed after striking the ground 40 just above the optical cable 50 to be tested and propagates into the optical cable to be tested.
[0064] The vibration generating unit 30 can be implemented by mechanically or manually tapping the ground 40, and its specific structure is not specifically limited here. In specific use, the ground 40 directly above the optical cable 50 to be tested is manually or mechanically tapped to generate a vibration wave. The vibration wave propagates horizontally along the ground 40 and is collected by the optical cable burial depth detection terminal 10 as a first vibration signal. At the same time, the vibration wave propagates vertically downward to the optical cable 50 to be tested, causing the optical cable to vibrate, so that the optical fiber sensing device 20 collects a second vibration signal. Since the propagation medium of the two vibration signals is the ground 40 in the same area, the propagation speed of the first vibration signal and the second vibration signal is the same. By comparing the time information of the first vibration signal and the time information of the second vibration signal obtained by the first timing module and the second timing module, the distance between the tapping point 30 and the optical cable burial depth detection terminal 10 and the relationship with the optical cable burial depth can be obtained. Then, by adjusting the tapping position and repeatedly collecting new first vibration signals, second vibration signals, first vibration signal time data, and second vibration signal time data, specific burial depth data can be gradually obtained. The optical cable buried depth detection system of the present invention is easy to assemble, does not require ground excavation, and avoids the use of ground detection radar, significantly reducing the difficulty of detecting optical cables, greatly reducing detection costs, and improving detection efficiency. Among them, the second timing module can specifically be a GPS timing module, a Beidou timing module, etc.
[0065] Exemplarily, the method for detecting the buried depth of an optical cable is as follows: when collecting the vibration wave caused by a certain knock on the ground 40, the time of the first vibration signal provided by the first timing module 900 is the same as the time of the second vibration signal provided by the optical fiber sensing device 20. Then, it can be determined that the distance L1 between the knocking point 30 and the optical cable buried depth detection terminal 10 at this time, and the vertical distance L2 between the knocking point 30 and the optical cable 50 to be measured have a relationship L1=L2. Since the buried depth of the optical cable 50 to be measured is equivalent to L2, it is easy to understand that the distance L1 between the knocking point 30 and the optical cable buried depth detection terminal 10 is the buried depth of the optical cable 50 to be measured.
[0066] If the first vibration signal time provided by the first timing module 900 is different from the second vibration signal time provided by the optical fiber sensing device 20, the size relationship between the above-mentioned L1 and L2 can be determined by comparing the time. To this end, the knocking point 30 is moved accordingly to change the distance between the knocking point 30 and the optical cable burial depth detection terminal 10, and the first vibration signal time and the second vibration signal time are repeatedly collected and compared. In this way, the depth of the optical cable 50 to be tested can be detected by repeating several times.
[0067] In a preferred embodiment, the optical cable buried depth detection system also includes a signal processing module, which is connected to the optical fiber sensing device 20 and the optical cable buried depth detection terminal 10. When in use, the signal processing module improves the analysis efficiency and analysis accuracy of the first vibration signal and the second vibration signal, thereby guiding the operator to adjust the position of the knocking point 30, thereby improving the efficiency of obtaining the buried depth of the optical cable.
[0068] The optical cable buried depth detection system of the present invention is easy to assemble, does not require ground excavation, and avoids the use of ground detection radar. This can significantly reduce the difficulty of detecting optical cables, greatly reduce detection costs, and improve detection efficiency.
[0069] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. An optical cable buried depth detection terminal, characterized in that: include: A housing, and a main control module, a first timing module, a communication module, a detector, and a power supply module arranged in the housing; The shell has a hollow accommodating cavity, and a first partition and a second partition are provided in the accommodating cavity. The first partition and the second partition are spaced apart from each other in a direction from the top of the shell toward the bottom of the shell, and the first partition and the second partition are both connected to the shell. The space between the top of the shell and the first partition forms a first chamber, the space between the first partition and the second partition forms a second chamber, and the space between the second partition and the bottom of the shell forms a third chamber. The communication module and the first timing module are assembled in the first chamber, the power supply module is assembled in the second chamber, the main control module is arranged on the second partition in the third chamber, the detector is arranged in the third chamber, the bottom of the housing is provided with a through-hole communicating with the outside, the detector extends downward to the bottom of the housing and is partially exposed through the through-hole; The first timing module, the communication module, and the detector are all electrically connected to the main control module, and the power supply module is electrically connected to the main control module.
2. The optical cable buried depth detection terminal according to claim 1, characterized in that: A support member is provided inside the shell, and the support member supports the detector.
3. The optical cable buried depth detection terminal according to claim 2, characterized in that: The support member is protruding from the bottom of the shell, and has a hollow installation cavity. The detector is arranged in the installation cavity, and the bottom of the installation cavity is communicated with the through-hole.
4. The optical cable buried depth detection terminal according to claim 3, characterized in that: It also includes a filling piece with wave-guiding properties, and the filling piece is arranged in the space between the detector and the installation cavity.
5. The optical cable buried depth detection terminal according to any one of claims 1 to 4, characterized in that: The housing is further provided with a level detection module and / or an orientation detection module.
6. The optical cable buried depth detection terminal according to any one of claims 1 to 4, characterized in that: The shell surface is provided with a hanging component for connecting to an external pulling device.
7. The optical cable buried depth detection terminal according to claim 1, characterized in that: The third chamber is further provided with a winding device for winding a wire, and the winding device is connected to the shell.
8. The optical cable buried depth detection terminal according to claim 1, characterized in that: The top of the shell corresponding to the position of the first chamber has an opening, and the opening is provided with a cover that can be opened and closed.
9. An optical cable buried depth detection system, characterized in that: The optical cable burial depth detection terminal comprises the optical cable burial depth detection terminal according to any one of claims 1 to 8, and an optical fiber sensing device provided with a second timing module; the optical cable burial depth detection terminal is used to be placed on the ground above the optical cable to be tested to collect a first vibration signal propagating along the ground after striking the ground directly above the optical cable to be tested; The optical fiber sensing device is used to be connected to the optical cable to be tested, so as to collect a second vibration signal generated by striking the ground directly above the optical cable to be tested and propagating into the optical cable to be tested.
10. The optical cable buried depth detection system according to claim 9, characterized in that: It also includes a signal processing module, which is connected to the optical fiber sensing equipment and the optical cable burial depth detection terminal signal.