Cable longitudinal displacement monitoring device

Abstract

The utility model provides a cable longitudinal displacement monitoring device. The cable longitudinal displacement monitoring device comprises a transmission shaft, a hub, a magnet, a stay wire and a magnetic sensitive angle sensor, the hub is rotationally arranged on the transmission shaft; the magnet is connected with the hub, and the magnet and the hub rotate synchronously; one end of the stay wire is wound on the hub, and the other end of the stay wire is used for being fixed on an optical cable or cable sheath; and the magnetic sensitive angle sensor is arranged on the transmission shaft and is opposite to the magnet. The hub is connected with an optical cable or an electric cable through the stay wire, and the stay wire pulls the hub to rotate around the transmission shaft and drives the magnet to rotate at the same time. The magnetic sensitive angle sensor obtains the magnetic field angle change of the magnet, calculates the pull-out or contraction length of the stay wire according to the magnetic field angle change, calculates the moving distance of the optical cable or the cable, and uploads the moving distance of the optical cable or the cable to the server through the data collector, thereby achieving the unmanned monitoring of the optical cable or the cable. And the workload of checking the longitudinal movement of the optical cable or the electric cable is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable displacement monitoring, in particular to a cable longitudinal displacement monitoring device. Background Art

[0002] Optical cable is a medium that transmits information from one end to the other. It is the main transmission means of modern communication network. Once the optical cable is disconnected, the communication between the two ends will be affected. The main function of the cable is to transmit power, signals and realize electromagnetic conversion. For example, power cables and overhead lines are used to transmit power, coaxial cables and railway signal cables are used to transmit signals, and enameled wires are used to realize electromagnetic conversion. Once the cable is disconnected, it will cause equipment paralysis and other failures.

[0003] Due to the influence of force majeure factors such as the sinking of the bridge head slope protection and seasonal temperature difference, the optical cables at both ends of the bridge head sink and undergo longitudinal displacement. If the longitudinal displacement of the optical cables is too large, it is very easy to cause the optical cables to be tightened or even broken. This poses a serious safety hazard to the normal use of optical cables and may even lead to operational safety accidents.

[0004] At present, in order to avoid the above problems, the railway or power industry can only manually inspect the optical and electrical cables at the bridge head to determine their working status. This inspection method has the following disadvantages: First, the optical and electrical cables on the bridge are installed in the cable trough and are blocked by the cable trough cover, so they cannot be inspected directly. Each time, the cable trough cover needs to be removed and manually pulled to confirm the displacement and stress status of the optical and electrical cables. The workload of removing and installing the cable trough cover each time is both large and cumbersome. Utility Model Content

[0005] Based on this, it is necessary to provide a cable longitudinal displacement monitoring device to address the above technical problems.

[0006] A cable longitudinal displacement monitoring device comprises: a transmission shaft, a hub, a magnet, a pull wire and a magnetic angle sensor;

[0007] The wheel hub is rotatably disposed on the transmission shaft;

[0008] The magnet is connected to the wheel hub, and the magnet and the wheel hub rotate synchronously;

[0009] One end of the pull wire is wound around the hub, and one end of the pull wire is used to be fixed on the outer sheath of the optical cable or the electrical cable;

[0010] The magnetic angle sensor is arranged on the transmission shaft, and the magnetic angle sensor is arranged opposite to the magnet.

[0011] In one embodiment, an elastic member is further included, wherein a first end of the elastic member is disposed on the transmission shaft, and a second end of the elastic member is disposed on the first surface of the hub.

[0012] In one embodiment, the elastic member is a constant force spring.

[0013] In one embodiment, it further comprises a data collector, wherein the input end of the data collector is electrically connected to the output end of the magnetic angle sensor, and the output end of the data collector is used to be electrically connected to a server.

[0014] In one of the embodiments, the data collector is provided with a communication module, and the communication module is electrically connected to the server.

[0015] In one embodiment, the communication module is a 5G module or a 4G module.

[0016] In one embodiment, a solar panel is further included, and an output end of the solar panel is connected to a power supply end of the magnetic angle sensor.

[0017] In one embodiment, a storage battery is further included, wherein the charging end of the storage battery is connected to the output end of the solar panel, and the output end of the storage battery is connected to the power supply end of the magnetic angle sensor.

[0018] In one embodiment, it further comprises a first transformer module, wherein the input end of the first transformer module is connected to the output end of the battery, and the output end of the first transformer module is connected to the power supply end of the magnetic angle sensor.

[0019] In one of the embodiments, it further includes a second transformer module, wherein the input end of the second transformer module is connected to the output end of the battery, and the output end of the second transformer module is connected to the power supply end of the data collector.

[0020] The cable longitudinal displacement monitoring device in the present application connects the hub to the optical cable or cable by using a pull wire. When the optical cable or cable is displaced, the pull wire will pull the hub to rotate around the transmission shaft and drive the magnet to rotate at the same time. During the rotation of the magnet, the magnetic angle sensor obtains the change in the magnetic field angle of the magnet, calculates the length of the pull wire pulled out or contracted according to the change in the magnetic field angle, and then calculates the moving distance of the optical cable or cable. The moving distance of the optical cable or cable is uploaded to the server through the data collector, realizing unmanned monitoring of the optical cable or cable, and reducing the workload when checking the longitudinal movement of the optical cable or cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural block diagram of a cable longitudinal displacement monitoring device in one embodiment;

[0022] Figure 2 The figure is a schematic diagram of the flow chart of a cable longitudinal displacement monitoring device in one embodiment. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] like Figure 1 As shown, a cable longitudinal displacement monitoring device is provided, comprising: a transmission shaft 100, a hub 110, a magnet 120, a pull wire 130 and a magnetic angle sensor 140;

[0025] The wheel hub 110 is rotatably disposed on the transmission shaft 100;

[0026] The magnet 120 is connected to the wheel hub 110, and the magnet 120 and the wheel hub 110 rotate synchronously;

[0027] The first end of the pull wire 130 is wound around the hub 110, and the second end of the pull wire 130 is used to be fixed to the outer sheath of the optical cable or the electrical cable;

[0028] The magnetic angle sensor 140 is disposed on the transmission shaft 100 , and the magnetic angle sensor 140 is disposed opposite to the magnet 120 .

[0029] In this embodiment, the cable longitudinal displacement monitoring device is installed beside the cable or optical cable so that the transmission shaft 100 is parallel to the cable or optical cable. The hub 110 is rotatably installed on the transmission shaft 100, and the hub 110 is connected to the cable or optical cable by the pull wire 130, and the pull wire 130 is in a straightened and tightened state. The magnet 120 is installed on one side of the hub 110. The magnetic angle sensor 140 is fixedly installed on the first end of the transmission shaft 100, and the magnetic angle sensor 140 is arranged opposite to the magnet 120, and the magnetic angle sensor 140 does not rotate with the hub 110. The magnetic angle sensor 140 includes a microprocessor, and the microprocessor is used to obtain the initial angle of the magnetic field of the magnet 120. When the cable or optical cable is longitudinally displaced, the cable or optical cable drives the pull wire 130 to move, and the pull wire 130 drives the hub 110 and the magnet 120 to rotate around the transmission shaft 100. During the rotation of the hub 110, the magnetic field angle of the magnet 120 changes. The microprocessor obtains the magnetic field angle during the rotation process, and calculates the change in the magnetic field angle using the difference between the real-time magnetic field angle and the initial magnetic field angle. By establishing a mathematical model and combining the diameter data of the hub 110, the magnetic field angle is converted into the displacement length of the pull wire 130. The displacement length of the pull wire 130 is used to represent the longitudinal movement distance of the cable or optical cable point.

[0030] like Figure 1 As shown, in one embodiment, an elastic member 150 is further included, a first end of the elastic member 150 is disposed on the transmission shaft 100 , and a second end of the elastic member 150 is disposed on the first surface of the hub 110 .

[0031] In the present embodiment, when the pull wire 130 is moved by the electric cable or the optical cable and drives the wheel hub 130 to rotate around the transmission shaft 100, the wheel hub 110 changes the shape of the elastic member 150, and utilizes the elastic force of the elastic member 150 to drive the wheel hub 110 to rotate around the transmission shaft 100 in the direction of winding up the pull wire 130, so that the pull wire 130 can remain in a straightened and taut state regardless of being pulled out of the wheel hub 110 or wound on the wheel hub 110, so as to ensure the accuracy of the magnetic field angle change calculated by the magnetic angle sensor 140.

[0032] In one embodiment, the elastic member 150 is a constant force spring.

[0033] In this embodiment, the constant force spring is sleeved on the transmission shaft 100, and the first end of the constant force spring is fixed on the transmission shaft 100, and the second end of the constant force spring is fixed to the side of the hub 110. When the hub 110 rotates around the transmission shaft 100, the hub 110 stretches or compresses the constant force spring, and the elastic force of the constant force spring and the pull wire 130 are used to provide a pulling force in the opposite direction to the hub 110, so that the hub 110 rotates in the direction of winding the pull wire 130, and the second end of the pull wire 130 is fixed on the outer skin of the optical cable or the electrical cable, so that the pull wire 130 can always be in a tensioned state.

[0034] like Figure 2 As shown, in one embodiment, a data collector 200 is further included, the input end of the data collector 200 is electrically connected to the output end of the magnetic angle sensor 140, and the output end of the data collector 200 is used to be electrically connected to the server.

[0035] In this embodiment, the data collector 200 is connected to the output end of the microprocessor through a data line. The microprocessor sends the displacement length information of the pull wire 130 to the data collector 200, and the data collector 200 collects and summarizes the data of the multi-channel magnetic angle sensor 140. The output data channel of the magnetic angle sensor 140 is 8 channels, and the input data channel of the data collector 200 is 4 channels. Therefore, the output end of each magnetic angle sensor 140 is connected to two data collectors 200, and the two data collectors 200 respectively collect the displacement data of the pull wire 130 transmitted by the 4 channels.

[0036] In one embodiment, the data collector 200 is provided with a communication module, and the communication module is electrically connected to the server.

[0037] In this embodiment, the data collector 200 sends the displacement data of the pull wire 130 collected by the magnetic angle sensor 140 to the server through the communication module, and remotely obtains the longitudinal displacement of the cable or optical cable by establishing a communication connection between the mobile terminal and the server, thereby realizing the function of remotely monitoring the displacement of the cable or optical cable.

[0038] In one embodiment, the communication module is a 5G module or a 4G module.

[0039] In this embodiment, the communication module sends the longitudinal displacement data of the cable or optical cable to the server more quickly through the 4G network or the 5G network, and can achieve wireless connection, thereby improving the convenience of the cable longitudinal displacement monitoring device.

[0040] like Figure 2 As shown, in one embodiment, a solar panel 300 is further included, and an output end of the solar panel 300 is connected to a power supply end of the magnetic angle sensor 140 .

[0041] In this embodiment, solar energy is obtained by setting up a solar panel 300, and the solar energy is converted into electrical energy to power the magnetic angle sensor 140, so as to drive the magnetic angle sensor 140 to work normally, thereby reducing the dependence on traditional power sources and reducing electricity costs. The solar panel 300 can work in various climates and environments, and has strong environmental adaptability. As long as there is enough light, it can provide energy for the cable longitudinal displacement monitoring device.

[0042] like Figure 2 As shown, in one embodiment, a battery 400 is further included, the charging end of the battery 400 is connected to the output end of the solar panel 300 , and the output end of the battery 400 is connected to the power supply end of the magnetic angle sensor 140 .

[0043] In this embodiment, a battery 400 is provided in the cable longitudinal displacement monitoring device, and the output end of the solar panel 300 is connected to the charging end of the battery 400. When the solar panel 300 generates electric energy during operation, it supplies power to the magnetic angle sensor 140, and the solar panel 300 also charges the battery 400. When the cable longitudinal displacement monitoring device is in a dark place or the light intensity irradiating the solar panel 300 is insufficient, the battery 400 provides electric energy to the magnetic angle sensor 140, driving the magnetic angle sensor to work normally.

[0044] In one embodiment, the battery 400 is a lithium battery.

[0045] In this embodiment, the lithium battery has a higher energy density and a longer cycle life, and a smaller battery 400 can be used to power the magnetic angle sensor 140, so as to reduce the volume of the cable longitudinal displacement monitoring device and improve the portability of the cable longitudinal displacement monitoring device.

[0046] like Figure 2 As shown, in one embodiment, it also includes a first transformer module 500 , the input end of the first transformer module 500 is connected to the output end of the battery 400 , and the output end of the first transformer module 500 is connected to the power supply end of the magnetic angle sensor 140 .

[0047] In this embodiment, a first transformer module 500 is provided in the cable longitudinal displacement monitoring device, and the input end of the first transformer module 500 is connected to the output end of the battery 400, and the 200V AC voltage output by the battery 400 is stabilized and transformed to output a 5V DC voltage to adapt to the working voltage of the 5V DC voltage of the magnetic angle sensor, thereby driving the magnetic angle sensor to work normally.

[0048] like Figure 2 As shown, in one embodiment, it also includes a second transformer module 600 , the input end of the second transformer module 600 is connected to the output end of the battery 400 , and the output end of the second transformer module 600 is connected to the power supply end of the data collector 200 .

[0049] In this embodiment, the input end of the second transformer module 600 is connected to the output end of the battery 400. The second transformer module 600 stabilizes the 200V AC voltage output by the battery 400 and outputs a 12V DC voltage after voltage transformation to adapt to the 12V DC working voltage of the data collector 200 and drive the data collector 200 to work normally.

[0050] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A cable longitudinal displacement monitoring device, characterized in that: include: Drive shaft, wheel hub, magnet, cable and magnetic angle sensor; The wheel hub is rotatably disposed on the transmission shaft; The magnet is connected to the wheel hub, and the magnet and the wheel hub rotate synchronously; One end of the pull wire is wound around the hub, and one end of the pull wire is used to be fixed on the outer sheath of the optical cable or the electrical cable; The magnetic angle sensor is arranged on the transmission shaft, and the magnetic angle sensor is arranged opposite to the magnet.

2. The cable longitudinal displacement monitoring device according to claim 1, characterized in that: It also includes an elastic member, wherein a first end of the elastic member is arranged on the transmission shaft, and a second end of the elastic member is arranged on the first surface of the hub.

3. The cable longitudinal displacement monitoring device according to claim 2, characterized in that: The elastic member is a constant force spring.

4. The cable longitudinal displacement monitoring device according to claim 1, characterized in that: It also includes a data collector, the input end of the data collector is electrically connected to the output end of the magnetic angle sensor, and the output end of the data collector is used to be electrically connected to a server.

5. The cable longitudinal displacement monitoring device according to claim 4, characterized in that: The data collector is provided with a communication module, and the communication module is electrically connected to the server.

6. The cable longitudinal displacement monitoring device according to claim 5, characterized in that: The communication module is a 5G module or a 4G module.

7. The cable longitudinal displacement monitoring device according to claim 4, characterized in that: It also includes a solar panel, and the output end of the solar panel is connected to the power supply end of the magnetic angle sensor.

8. The cable longitudinal displacement monitoring device according to claim 7, characterized in that: It also includes a storage battery, wherein the charging end of the storage battery is connected to the output end of the solar panel, and the output end of the storage battery is connected to the power supply end of the magnetic angle sensor.

9. The cable longitudinal displacement monitoring device according to claim 8, characterized in that: It also includes a first transformer module, the input end of the first transformer module is connected to the output end of the battery, and the output end of the first transformer module is connected to the power supply end of the magnetic angle sensor.

10. The cable longitudinal displacement monitoring device according to claim 8, characterized in that: It also includes a second transformer module, the input end of the second transformer module is connected to the output end of the battery, and the output end of the second transformer module is connected to the power supply end of the data collector.

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