Optical cable channel monitoring and early warning system

Abstract

The utility model provides an optical cable channel monitoring and early warning system, which comprises a first detection module, a second detection module, a control module and a remote early warning module, the first detection module is used for detecting environmental parameters in an optical cable channel and outputting the environmental parameters to the control module; the second detection module is used for detecting breakpoint information of the optical cable in the optical cable channel and outputting the breakpoint information to the control module; the input end of the control module is connected to the signal output end of the first detection module and the signal output end of the second detection module, and the control module outputs detection control information to the second detection module. The control module is in communication connection with the remote early warning module and uploads environment information output by the first detection module and breakpoint information output by the second detection module. And the remote early warning module is in communication connection with the control module and is used for receiving the environment information and the breakpoint information uploaded by the control module and performing early warning, and the remote early warning module issues a breakpoint detection instruction for controlling the second detection module to work to the control module.

Description

Technical Field

[0001] This utility model relates to a power early warning system, and more particularly to a fiber optic cable trench monitoring and early warning system. Background Technology

[0002] Power systems contain a large number of optical cables used for transmitting power grid protection and status monitoring data. These optical cables are generally laid through underground trenches. The optical cables in the underground trenches also need maintenance and monitoring. For example, if a break or other fault occurs in the optical cable, the current technology usually relies on manual inspection to confirm the location of the break or fault after a transmission failure such as a break in the underground optical cable. This method is extremely inefficient, resulting in the power system's protection and status data not being uploaded in a timely manner, thus posing a hidden danger to the stability of the power system.

[0003] Although technological advancements have led to the development of online monitoring methods for optical cables, such as monitoring the environment within the trench, there remains no effective means to determine the location of cable breaks. Therefore, a new technical approach is urgently needed to address these technical issues. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a fiber optic cable trench monitoring and early warning system that can monitor and upload environmental parameters in the fiber optic cable trench in real time, which is beneficial for the maintenance of the fiber optic cable trench. On the other hand, it can accurately determine the location of the breakpoint in the fiber optic cable trench and whether it is a breakpoint fault, thereby facilitating timely and accurate operation and maintenance measures, ensuring that power data can be uploaded in a timely manner, and reducing the safety hazards of power system caused by fiber optic cable faults.

[0005] This utility model provides a fiber optic cable trench monitoring and early warning system, which includes a first detection module, a second detection module, a control module, and a remote early warning module;

[0006] The first detection module is used to detect environmental parameters within the optical cable trench and output them to the control module;

[0007] The second detection module is used to detect the break point information of the optical cable in the optical cable trench and output it to the control module;

[0008] The control module has its input terminal connected to the signal output terminals of the first detection module and the second detection module, and the control module outputs detection control information to the second detection module. The control module is also communicatively connected to the remote early warning module and uploads the environmental information output by the first detection module and the breakpoint information output by the second detection module.

[0009] The remote early warning module is communicatively connected to the control module and is used to receive environmental information and breakpoint information uploaded by the control module and issue early warnings. The remote early warning module also sends breakpoint detection commands to the control module to control the operation of the second detection module.

[0010] Furthermore, the first detection module includes a temperature sensor, a humidity sensor, a solid particulate matter concentration sensor, a vibration sensor, and a preprocessing circuit.

[0011] The output terminals of the temperature sensor, humidity sensor, particulate matter concentration sensor, and vibration sensor are connected to the input terminal of the preprocessing circuit, and the output terminal of the preprocessing circuit is communicatively connected to the control module.

[0012] Furthermore, the second detection module includes a guide rail fixed to the side wall of the optical cable trench, a walking mechanism disposed on the guide rail and capable of reciprocating along the guide rail, a camera disposed on the walking mechanism, and a detection controller.

[0013] The output of the camera is connected to the detection controller, which is communicatively connected to the control module. The detection controller is used to transmit the image information output by the camera to the control module and to receive control commands issued by the control module to control the walking mechanism to move along the guide rail.

[0014] Furthermore, the walking mechanism includes walking wheels, a drive shaft, an upper crossbeam, a lower crossbeam, a vertical connecting part, a drive motor, and a drive controller;

[0015] The upper and lower crossbeams are both fixedly connected to the vertical connecting part, and the upper and lower crossbeams are arranged in parallel. The walking wheel is rotatably mounted on the upper crossbeam through the drive shaft. The power output end of the drive motor is connected to the drive shaft. The drive motor is fixedly mounted on the vertical connecting part.

[0016] The upper surface of the guide rail is recessed to form a guide groove extending along the length of the guide rail, and the traveling wheel is partially embedded in the guide groove;

[0017] The lower crossbeam is fixedly equipped with a counterweight block, and the line connecting the center of gravity of the counterweight block and the geometric center of the traveling wheel is parallel to the vertical direction.

[0018] The camera is fixedly mounted on the vertical connection part and its shooting direction is directly facing the optical cable.

[0019] Furthermore, the control module includes a first wireless transmission circuit, a second wireless transmission circuit, a central control chip, and a position circuit;

[0020] The central control chip is connected to the detection controller via a first wireless transmission circuit. The central control chip is also connected to the output of the first detection module. The central control chip is connected to the remote early warning module via a second wireless transmission circuit. The position circuit is connected to the central control chip.

[0021] Furthermore, the remote early warning module includes a monitoring host, a touch display, and an audible and visual alarm;

[0022] The monitoring host is connected to the central control chip via a second wireless transmission circuit, and the touch display and the audible and visual alarm are connected to the monitoring host.

[0023] The beneficial effects of this utility model are as follows: This utility model enables real-time monitoring and uploading of environmental parameters within the optical cable trench, which is beneficial for the maintenance of the optical cable trench. On the other hand, it enables accurate judgment of the location of breakpoints in the optical cable trench and whether they are breakpoint faults, thereby facilitating timely and accurate operation and maintenance measures, ensuring that power data can be uploaded in a timely manner, and reducing the safety hazards to the power system caused by optical cable faults. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a schematic diagram of the electrical structure of this utility model.

[0026] Figure 2 This is a schematic diagram of a specific embodiment of the electrical structure of this utility model.

[0027] Figure 3 This is a schematic diagram of the optical cable trench of this utility model.

[0028] Figure 4 This is a schematic diagram of the walking mechanism of this utility model. Detailed Implementation

[0029] The present invention will be further described in detail below:

[0030] This utility model provides a fiber optic cable trench monitoring and early warning system, which includes a first detection module, a second detection module, a control module, and a remote early warning module;

[0031] The first detection module is used to detect environmental parameters within the optical cable trench and output them to the control module;

[0032] The second detection module is used to detect the break point information of the optical cable in the optical cable trench and output it to the control module;

[0033] The control module has its input terminal connected to the signal output terminals of the first detection module and the second detection module, and the control module outputs detection control information to the second detection module. The control module is also communicatively connected to the remote early warning module and uploads the environmental information output by the first detection module and the breakpoint information output by the second detection module.

[0034] The remote early warning module is communicatively connected to the control module. It receives environmental and breakpoint information uploaded by the control module and issues early warnings. The remote early warning module also sends breakpoint detection commands to the control module to control the operation of the second detection module. Through this structure, environmental parameters in the optical cable trench can be monitored and uploaded in real time, which is beneficial for the maintenance of the optical cable trench. On the other hand, it can accurately determine the location of breakpoints in the optical cable trench and whether they are breakpoint faults, thereby facilitating timely and accurate maintenance measures, ensuring that power data can be uploaded in a timely manner, and reducing the safety hazards to the power system caused by optical cable faults.

[0035] In this embodiment, the first detection module includes a temperature sensor, a humidity sensor, a solid particulate matter concentration sensor, a vibration sensor, and a preprocessing circuit;

[0036] The outputs of the temperature sensor, humidity sensor, particulate matter concentration sensor, and vibration sensor are connected to the input of the preprocessing circuit. The output of the preprocessing circuit is communicatively connected to the control module. The preprocessing circuit consists of an existing amplification circuit, a filtering circuit, and an AD sampling circuit. The electrical signals output by each sensor are amplified by the amplification circuit, then input to the filtering circuit for filtering to remove interference, and finally input to the AD sampling circuit for sampling. The signals are then output to the control module for uploading. In practice, multiple first detection modules can be set according to the actual length of the optical cable trench. Temperature and humidity affect the optical cable. Temperature can easily increase optical cable loss, leading to signal distortion. Humidity is one of the factors that cause optical cable breakage. Particulate matter concentration affects optical cable joints. Tiny dust particles can cause huge optical signal loss at the optical cable joints, leading to communication failures. Vibration signals originate from ground vehicles, etc. Vibration can cause deformation and breakage of the optical cable. Therefore, monitoring the above parameters is used to guide the formulation of subsequent optical cable operation and maintenance measures.

[0037] In this embodiment, the second detection module includes a guide rail 2 fixed to the side wall of the optical cable trench 3, a walking mechanism disposed on the guide rail and capable of reciprocating along the guide rail, a camera 5 disposed on the walking mechanism, and a detection controller.

[0038] The output of the camera is connected to the detection controller, which is communicatively connected to the control module. The detection controller is used to transmit the image information output by the camera to the control module and to receive control commands issued by the control module to control the walking mechanism to move along the guide rail.

[0039] The walking mechanism includes a walking wheel 102, a drive shaft 103, an upper crossbeam 101, a lower crossbeam 105, a vertical connecting part 107, a drive motor 104, and a drive controller.

[0040] The upper crossbeam 101 and the lower crossbeam 105 are both fixedly connected to the vertical connecting part, and the upper and lower crossbeams are arranged parallel to each other and located on the same side of the vertical connecting part 107. The walking wheel 102 is rotatably mounted on the upper crossbeam through the drive shaft 103. The power output end of the drive motor 5 is connected to the drive shaft 103. The drive motor is fixedly mounted on the vertical connecting part. The control input end of the drive motor is connected to the control output end of the drive controller. The drive controller is communicatively connected to the detection controller. The drive controller uses an existing motor drive chip and its peripheral circuits, which will not be described in detail here.

[0041] The upper surface of the guide rail 2 is recessed to form a guide groove 201 extending along the length of the guide rail, and the traveling wheel is partially embedded in the guide groove 201; wherein, the guide rail is fixedly installed on the side wall of the optical cable trench.

[0042] The lower crossbeam is fixedly equipped with a counterweight 106, and the line connecting the center of gravity of the counterweight and the geometric center of the traveling wheel is parallel to the vertical direction.

[0043] The camera 105 is fixedly mounted on the vertical connecting part, with its shooting direction facing the optical cable 4. The drive shaft and drive motor can be connected via existing couplings or reducers and other existing transmission components. The maintenance center sends inspection commands to the central control chip via a remote early warning module, specifying the inspection cycle of the walking mechanism, such as an inspection every half hour or once an hour (this inspection time is determined based on the environmental parameters of the optical cable trench within a set time period; for example, if the temperature, humidity, particulate matter concentration, or vibration in the trench is too low or too high, the inspection frequency will be increased to once every half hour; if the values ​​of the sensor output parameters are within a safe range, the inspection frequency can be reduced to once every two hours). Through this structure, the walking mechanism drives the camera to reciprocate along the guide rail to acquire image information of the optical cable, thereby determining whether the optical cable has broken. Since the medium in the optical cable is... When an optical cable breaks, light will escape. A camera captures the image of the break point and uses the light spots in the image to determine if a break has occurred. (Since the optical fiber in the cable trench is dark or almost completely dark, the image captured by the camera appears black. However, when the cable breaks, the emitted light will be clearly visible in the image.) In practice, optical cable trenches are generally long. Therefore, the second detection modules mentioned above can be arranged at intervals of 50 meters, 100 meters, etc. (the interval can be set according to actual needs). Each detection controller in the second detection module is assigned an address or a code. This code represents the location segment of the second detection module in the optical cable trench. The remote early warning module can obtain this code and the code of the location module to accurately determine the specific geographical location of the current optical cable trench and which segment of the cable has broken, thereby enabling timely identification of the fault point and timely troubleshooting.

[0044] The counterweight structure ensures that the traveling wheels always run within the guide groove of the guide rail and maintains the stability of the entire traveling mechanism. The camera uses an existing low-light CCD camera. In practice, a second detection module is set on both sides of the optical cable trench because light is directional. For example, if the optical cable breaks on the left side, and the camera is on the right side of the optical cable, it may not be able to detect the light escaping from the break, thus causing a false alarm.

[0045] In this embodiment, the control module includes a first wireless transmission circuit, a second wireless transmission circuit, a central control chip, and a position circuit; wherein, the first wireless transmission circuit is implemented using existing Bluetooth, ZigBee, or UWB modules, and the second wireless transmission circuit can be implemented using existing 2.4G power wireless private network modules or 5G modules.

[0046] The central control chip communicates with the detection controller via a first wireless transmission circuit. The central control chip is also connected to the output of the first detection module. The central control chip communicates with the remote early warning module via a second wireless transmission circuit. The position circuit communicates with the central control chip. The central control chip and detection controller use existing chips, such as STM32 series chips, selected according to actual needs. The position circuit uses an existing encoding switch. The encoding switch sets the current encoding of the central control chip, which represents a position. The remote early warning module can then locate the current position of the cable trench based on this encoding information.

[0047] In this embodiment, the remote early warning module includes a monitoring host, a touch display, and an audible and visual alarm.

[0048] The monitoring host is connected to the central control chip via a second wireless transmission circuit, and the touch display and the audible and visual alarm are connected to the monitoring host.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An optical cable trench monitoring and warning system, characterized by: The first detection module, the second detection module, the control module and the remote early warning module are included. The first detection module is used for detecting the environmental parameters in the optical cable channel and outputting to the control module. The second detection module is used for detecting the breakpoint information of the optical cable in the optical cable channel and outputting to the control module. The control module is connected to the signal output ends of the first detection module and the second detection module, and outputs the detection control information to the second detection module. The remote early warning module is connected to the control module, receives the environmental information and the breakpoint information uploaded by the control module, and performs early warning.

2. The optical cable channel monitoring and warning system of claim 1, wherein: The first detection module includes a temperature sensor, a humidity sensor, a solid particle concentration sensor, a vibration sensor and a preprocessing circuit. The output ends of the temperature sensor, the humidity sensor, the solid particle concentration sensor and the vibration sensor are connected to the input end of the preprocessing circuit, and the output end of the preprocessing circuit is connected to the control module.

3. The optical cable channel monitoring and warning system of claim 1, wherein: The second detection module includes a guide rail fixed to the side wall of the optical cable channel, a walking mechanism arranged on the guide rail and capable of reciprocating along the guide rail, a camera arranged on the walking mechanism and a detection controller. The output end of the camera is connected to the detection controller, and the detection controller is connected to the control module.

4. The optical cable channel monitoring and warning system of claim 3, wherein: The walking mechanism includes walking wheels, a driving shaft, an upper cross beam, a lower cross beam, a vertical connecting part, a driving motor and a driving controller. The upper cross beam and the lower cross beam are fixedly connected to the vertical connecting part, and the upper cross beam is arranged in parallel with the lower cross beam. The driving motor is fixedly arranged on the vertical connecting part. The upper surface of the guide rail is sunken to form a guide groove extending along the length direction of the guide rail, and the walking wheels are partially embedded in the guide groove. The lower cross beam is fixedly provided with a counterweight, and the center of gravity of the counterweight is parallel to the geometric center of the walking wheels.

5. The optical cable channel monitoring and warning system of claim 3, wherein: The camera is fixedly arranged on the vertical connecting part, and the shooting direction of the camera is perpendicular to the optical cable. The control module includes a first wireless transmission circuit, a second wireless transmission circuit, a central control chip and a position circuit.

6. The optical cable channel monitoring and warning system of claim 5, wherein: The central control chip is connected to the detection controller through the first wireless transmission circuit, and is also connected to the output end of the first detection module. The remote early warning module includes a monitoring host, a touch display and an audible and visual alarm. The monitoring host is connected with the central control chip through a second wireless transmission circuit, and the touch display and the sound-light alarm are connected with the monitoring host.

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