Solar Beidou positioning information sharing crossing line range finder and range finding method

Abstract

The invention discloses a solar Beidou positioning information sharing crossing line range finder and a range finding method, and belongs to the technical field of electric power communication, and the range finder comprises a housing which comprises an upper housing and a lower housing; the solar power supply module is arranged on the upper shell and is used for providing a working power supply for the range finder; the infrared distance measurement module is arranged on the lower shell and used for monitoring the distance between the crossing line and the ground; the central processing module is arranged in the lower shell and used for receiving and processing measurement information of the infrared distance measurement module; and the Beidou positioning and short message module is arranged in the lower shell and is used for pre-storing a Beidou card number of a background monitoring center, receiving the measurement information and the positioning information processed by the central processing module and sending the measurement information and the positioning information to the background monitoring center through a Beidou short message function. According to the invention, real-time measurement and data transmission of the distance from the crossing line to the ground can be realized, the distance abnormity can be found in time, and the timeliness of safety monitoring of the crossing line is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of power communication technology, and more specifically, it relates to a solar-powered BeiDou positioning information sharing cross-line rangefinder and rangefinder method. Background Technology

[0002] In fields such as power transmission and communication signal transmission, the safe operation of crossing lines—the sections where different lines intersect or cross other objects—is crucial, and the distance between these crossing lines and the ground is one of the key indicators for measuring their safety status. Currently, the industry mainly uses traditional manual inspection methods to monitor the distance between crossing lines and the ground. Staff need to carry distance measuring instruments to the site regularly to take measurements. This method not only consumes a lot of manpower, material resources, and time, but also has a long measurement cycle, making it impossible to achieve real-time monitoring of the distance to the ground. It is difficult to detect abnormal changes in the distance to the ground caused by external factors (such as strong winds, icing, tree growth, and terrain subsidence). Once the distance between the line and the ground is less than the safety threshold, it may cause accidents such as line discharge and short circuits, seriously threatening the stable operation of power and communication systems, and even causing casualties and property damage.

[0003] In some areas, wired power supply fixed ranging devices have been attempted for monitoring. However, these devices are limited by the power supply lines, resulting in poor installation flexibility, especially in remote mountainous areas and complex terrain. Wiring is difficult and costly, and the entire monitoring device ceases operation if the power supply line fails, leading to low reliability. Furthermore, existing ranging devices mostly use laser ranging, which is susceptible to interference under adverse weather conditions (such as heavy rain, fog, and sandstorms), causing a significant decrease in measurement accuracy. This makes it difficult to accurately reflect the actual distance between the crossing lines and the ground, failing to meet the requirements for long-term stable and safe monitoring of crossing lines.

[0004] Furthermore, current ranging devices lack effective positioning and data transmission integration capabilities, making it impossible to accurately correlate measurement data with specific line location information. When distance anomalies occur, it is difficult for staff to quickly locate the faulty line segment, which hinders timely repair work and further increases the safety risks of crossing lines. Summary of the Invention

[0005] In view of the above or existing deficiencies, the present invention proposes a solar-powered BeiDou positioning information sharing cross-line rangefinder and rangefinder method.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] In a first aspect, the present invention provides a solar-powered BeiDou positioning information sharing cross-line ranging instrument, comprising:

[0008] The housing includes an upper housing and a lower housing;

[0009] A solar power module, located on the upper housing, is used to provide power to the rangefinder.

[0010] An infrared ranging module, located on the lower housing, is used to monitor the distance between the crossing line and the ground.

[0011] The central processing module, located inside the lower housing, is used to receive and process the measurement information from the infrared ranging module;

[0012] The BeiDou positioning and short message module is located inside the lower housing. It is used to pre-store the BeiDou card number of the background monitoring center, and to receive the measurement information and positioning information processed by the central processing module, and send them to the background monitoring center through the BeiDou short message function.

[0013] As a further technical solution of the present invention, the solar power supply module includes: a solar panel and an energy storage battery;

[0014] The solar panel is laid on the outer surface of the upper housing, and the energy storage battery is installed inside the upper housing. The solar panel is connected to the energy storage battery through a connecting wire passing through a waterproof hole.

[0015] As a further technical solution of the present invention, the infrared ranging module includes an infrared light generator and an infrared light receiver. The infrared light generator is used to emit infrared light to the ground measurement point. The infrared light reflected by the ground is received by the infrared light receiver. By calculating the time difference between transmission and reception, the distance between the cable and the ground is obtained.

[0016] As a further technical solution of the present invention, the upper shell and the lower shell are connected by a hinge on one side, and the upper shell and the lower shell are connected by bolts after being fastened together.

[0017] As a further technical solution of the present invention, the upper housing includes an upper bottom plate, on which a first groove is provided; the lower housing includes a lower bottom plate, on which a second groove is provided, wherein the first groove and the second groove together form a through hole for installing a cable when the housing is closed.

[0018] As a further technical solution of the present invention, the lower housing is filled with resin injection molding liquid for fixing internal components and enhancing protection.

[0019] Secondly, this invention provides a method for ranging across intersecting lines using solar-powered BeiDou positioning information sharing, including:

[0020] The distance to the ground from the cross-line to the ground measurement point is measured at preset time intervals using an infrared ranging module.

[0021] The real-time location information of the rangefinder is obtained through the BeiDou positioning and short message module;

[0022] By associating the distance to the ground, location information, and corresponding time, a complete data record is formed;

[0023] The distance to the ground is compared with a preset safe distance threshold to determine whether the line is in a safe state.

[0024] If the distance to the ground is less than the safe distance threshold, an early warning message will be generated;

[0025] Using the BeiDou positioning and short message module, normal monitoring data is sent to the remote monitoring center at set intervals, and early warning information is uploaded in real time with priority.

[0026] As a further technical solution of the present invention, the step of the infrared ranging module measuring the distance to the ground includes:

[0027] Transmit infrared signals to ground measurement points;

[0028] Receive infrared signals reflected from the ground;

[0029] The distance to the ground is calculated based on the time difference between signal transmission and reception and the infrared propagation speed;

[0030] Measurement data is stored in local memory.

[0031] As a further technical solution of the present invention, it also includes data reporting and early warning processing steps:

[0032] For normal monitoring data, it is sent to the remote monitoring center via BeiDou communication according to the preset transmission cycle;

[0033] For early warning information, priority transmission is immediately triggered, and the information is simultaneously sent to the remote monitoring center and the terminals of relevant personnel.

[0034] After receiving the data, the remote monitoring center stores, displays, and processes alarms, and generates a troubleshooting task sheet containing location, time, and abnormal data.

[0035] As a further technical solution of the present invention, the solar power supply module converts light energy into electrical energy and provides working power to each module in the rangefinder;

[0036] Upon receiving the early warning information, the remote monitoring center triggers an audible and visual alarm on the monitoring platform and automatically generates a fault work order containing the geographical location, abnormal distance value, and warning time.

[0037] The beneficial effects of this invention are as follows:

[0038] 1. This invention enables real-time measurement and data transmission of the distance between crossing lines and the ground. The measurement interval can be flexibly set according to actual needs. Staff can monitor the changes in the distance between crossing lines and the ground in real time without going to the site. Compared with the traditional manual inspection and periodic measurement method, it can detect distance anomalies in a timely manner, greatly improving the timeliness of safety monitoring of crossing lines.

[0039] 2. This invention adopts a solar power supply combined with an energy storage battery design, which ensures the continuous and stable operation of the device under various weather conditions and avoids the problem of monitoring interruption due to power supply failure. Since it uses solar power, it does not need to rely on external power supply lines. The rangefinder of this invention can be installed in various complex terrain environments, such as mountains, hills, and riverbanks, without being limited by geographical conditions. It can meet the monitoring needs of different types of crossing lines (such as high-voltage transmission lines, communication optical cable lines, etc.) and has broad application prospects.

[0040] 3. The anti-interference characteristics of infrared ranging technology and the stable performance of the BeiDou navigation system ensure the reliability of measurement data and positioning information, providing strong support for the safety monitoring of crossing lines.

[0041] 4. This invention adopts an integrated design, has a compact structure, and is simple and convenient to install, requiring no professional technicians to complete the installation.

[0042] 5. In terms of daily maintenance, solar panels and energy storage batteries have a long service life (solar panels can last for more than 20 years). Solar panels only need to ensure their light-gathering efficiency, which greatly reduces the maintenance cost of the device.

[0043] 6. Through real-time monitoring and automatic early warning functions, this invention can issue timely warnings when abnormal distances between crossing lines and the ground occur, facilitating timely measures by staff (such as pruning trees, adjusting line height, etc.) to avoid safety accidents caused by excessively close distances, thus ensuring the safe operation of the lines and the safety of surrounding personnel and property. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 The structural diagram of the solar-powered BeiDou positioning information sharing cross-line distance measuring instrument provided by this invention;

[0046] Figure 2Rear view of the solar-powered BeiDou positioning information sharing cross-line distance measuring instrument provided by the present invention;

[0047] Figure 3 A cross-sectional view of the solar-powered BeiDou positioning information sharing cross-line rangefinder provided by this invention;

[0048] Figure 4 This invention provides a structural diagram of the upper housing of a solar-powered BeiDou positioning information sharing cross-line rangefinder.

[0049] Figure 5 This invention provides a structural diagram of the lower housing of a solar-powered BeiDou positioning information sharing cross-line rangefinder.

[0050] Figure 6 Flowchart of the solar-powered BeiDou positioning information sharing and cross-line ranging method provided by the present invention; Detailed Implementation

[0051] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0053] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms as used in this disclosure, mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, but do not exclude other elements or objects. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments. It should be noted that the embodiments of the present invention can be applied to any applicable scenario.

[0055] See Figures 1 to 5 This invention provides a solar-powered BeiDou positioning information sharing cross-line rangefinder, comprising:

[0056] The outer casing 10 includes an upper casing 101 and a lower casing 102;

[0057] The solar power module 20, located on the upper housing, is used to provide power to the rangefinder.

[0058] Infrared ranging module 30, mounted on the lower housing, is used to monitor the distance between the crossing line and the ground;

[0059] The central processing module 40, located inside the lower housing, is used to receive and process the measurement information from the infrared ranging module;

[0060] The BeiDou positioning and short message module 50 is located inside the lower housing. It is used to pre-store the BeiDou card number of the background monitoring center and receive the measurement information and positioning information processed by the central processing module, and send them to the background monitoring center through the BeiDou short message function.

[0061] This invention enables real-time measurement and data transmission of the distance between crossing lines and the ground. The measurement interval can be flexibly set according to actual needs (the shortest measurement interval can be as short as 1 minute). Staff can monitor the changes in the distance between crossing lines and the ground in real time without going to the site. Compared with the traditional manual inspection and periodic measurement method, it can detect distance anomalies in a timely manner, greatly improving the timeliness of safety monitoring of crossing lines.

[0062] The device features an integrated design with a compact structure, making installation simple and convenient, requiring no specialized technicians. In terms of routine maintenance, the solar panels and energy storage batteries have a long lifespan (solar panels can last over 20 years), and only the solar panel's light-gathering efficiency needs to be ensured, significantly reducing the device's maintenance costs.

[0063] Through real-time monitoring and automatic early warning functions, timely warnings can be issued when there are abnormalities in the distance between the crossing lines and the ground, which facilitates timely measures by staff (such as pruning trees, adjusting the height of the lines, etc.) to avoid safety accidents caused by excessively close distances, thus ensuring the safe operation of the lines and the safety of surrounding personnel and property.

[0064] In this embodiment of the invention, the solar power supply module 20 includes: a solar panel 201 and an energy storage battery 202; the solar panel 201 is laid on the outer surface of the upper housing 101, the energy storage battery 202 is disposed inside the upper housing 101, and the solar panel 201 is connected to the energy storage battery 202 through a connecting wire passing through a waterproof hole.

[0065] This invention utilizes solar power. By installing high-efficiency solar panels and energy storage batteries on the ranging device, solar energy is converted into electrical energy to power the device. Excess energy is stored in the energy storage batteries, ensuring that the device can still operate normally in the absence of sunlight (such as at night or on cloudy days). Compared to traditional wired power supply methods, solar power supply eliminates the need for complex power lines, offers greater installation flexibility, is not limited by geographical environment, and has advantages such as being clean and environmentally friendly, having low operating costs, and being easy to maintain, effectively reducing the overall cost of monitoring cross-line equipment.

[0066] The design, combining solar power with energy storage batteries, ensures the continuous and stable operation of the device under various weather conditions, avoiding monitoring interruptions due to power failures. Furthermore, the anti-interference characteristics of infrared ranging technology and the stable performance of the BeiDou navigation system guarantee the reliability of measurement data and positioning information, providing strong support for the safety monitoring of crossing lines. Because it uses solar power, it does not rely on external power lines, allowing the rangefinder of this invention to be installed in various complex terrain environments, such as mountains, hills, and riverbanks, without being limited by geographical conditions. It can meet the monitoring needs of different types of crossing lines (such as high-voltage transmission lines and communication optical cable lines), and has broad application prospects.

[0067] In this embodiment of the invention, the infrared ranging module 30 includes an infrared light generator 301 and an infrared light receiver 302. The infrared light generator is used to emit infrared light to the ground measurement point. The infrared light reflected by the ground is received by the infrared light receiver. By calculating the time difference between transmission and reception, the distance between the cable and the ground is obtained.

[0068] This invention employs infrared ranging, which boasts strong anti-interference capabilities. Infrared signals maintain stable propagation even under adverse weather conditions such as heavy rain, dense fog, and sandstorms, ensuring the accuracy of measurement data. Furthermore, by optimizing the infrared ranging module, ranging accuracy is further enhanced, enabling precise measurement of the distance between crossing lines and the ground. The measurement error can be controlled within ±0.01 meters, significantly exceeding the measurement accuracy of existing laser ranging devices under adverse weather conditions, thus providing reliable data support for the safety monitoring of crossing lines.

[0069] In this embodiment of the invention, the upper shell and the lower shell are connected on one side by a hinge 103, and the upper shell and the lower shell are connected by bolts 104 after being fastened together.

[0070] See Figure 4 and Figure 5The upper housing 101 includes an upper base plate 111, on which a first groove 112 is provided; the lower housing 102 includes a lower base plate 121, on which a second groove 122 is provided. When the housing is closed, the first groove 111 and the second groove 122 together form a through hole for installing cables.

[0071] The lower housing 102 is filled with resin injection molding liquid to fix internal components and enhance protection.

[0072] The upper and lower housings are equipped with mounting holes. The upper base plate and the lower base plate are fixed to the upper and lower housings respectively by bolts. Sealing rings are installed between the upper base plate and the upper housing, and between the lower base plate and the lower housing respectively, to achieve sealing.

[0073] This invention integrates a BeiDou navigation module, enabling real-time acquisition of precise location information (latitude and longitude, etc.) from the ranging device, and correlating and integrating this location information with the measured ground distance data. Through the communication function of the BeiDou navigation system, the integrated data can be transmitted in real-time to a remote monitoring center, allowing staff to clearly understand the location and corresponding ground distance of each crossing line segment. When an anomaly in ground distance occurs, the faulty line segment can be quickly located based on BeiDou positioning information, significantly shortening troubleshooting time and improving repair efficiency.

[0074] The central processing module of this invention integrates a data processing module, which can analyze and process real-time measured ground distance data and compare it with a preset safe distance threshold. When the measured ground distance is less than the safe threshold, the device will automatically issue a warning signal and issue a warning through alarm indicator lights 123. The Beidou communication module will also transmit the warning information to the remote monitoring center and the staff's mobile terminals (such as mobile phones and tablets) in a timely manner, realizing multi-terminal warning and ensuring that staff can be aware of the danger at the first time and take corresponding measures to effectively avoid the occurrence of safety accidents.

[0075] See Figure 6 This invention provides a method for ranging across intersecting lines using solar-powered BeiDou positioning information sharing, comprising:

[0076] Step S1: Measure the distance to the ground from the crossing line to the ground measurement point at a preset time interval using an infrared ranging module;

[0077] Step S2: Obtain the real-time location information of the rangefinder through the BeiDou positioning and short message module;

[0078] Step S3: Associate the distance to the ground, location information, and corresponding time to form a complete data record;

[0079] Step S4: Compare the distance to the ground with the preset safe distance threshold to determine whether the line is in a safe state;

[0080] Step S5: If the distance to the ground is less than the safe distance threshold, then generate an early warning message;

[0081] Step S6: Using the BeiDou positioning and short message module, normal monitoring data is sent to the remote monitoring center at a set cycle, and early warning information is uploaded in real time with priority.

[0082] In this embodiment of the invention, a suitable installation location is selected based on the actual conditions of the crossing line (such as line height, terrain crossing, surrounding environment, etc.). The rangefinder is usually installed on the poles or towers of the crossing line or at key nodes of the line to ensure that the infrared ranging module can be clearly and unobstructedly aligned with the ground measurement point.

[0083] Install solar panels and adjust their position to maximize sunlight reception and ensure efficient solar power supply. Simultaneously, connect the energy storage battery to the solar panels and the rangefinder unit, ensuring correct and stable circuit connections.

[0084] Initialize the rangefinder by setting the parameters of the Beidou navigation module (such as positioning frequency, communication protocol, etc.), the measurement interval of the infrared ranging module (such as 5 minutes / time, 10 minutes / time, etc.), the safety distance threshold (set according to different line types and safety standards, such as the safety distance threshold of high-voltage transmission lines can be set to 5 meters), and the target address for data transmission (the network address of the remote monitoring center or the number of the staff's mobile terminal) through the device's control panel or remote communication interface.

[0085] After initialization, start the rangefinder and check whether the solar power supply system is working properly (whether the energy storage battery voltage is stable and whether the solar panel is charging properly), whether the Beidou navigation module can successfully locate (obtain accurate latitude and longitude and perform short message communication), whether the infrared ranging module can perform measurements normally (obtain initial distance data to the ground), and whether the data transmission function is normal (whether the positioning information and measurement data can be transmitted to the designated address).

[0086] In this embodiment of the invention, the step of the infrared ranging module measuring the distance to the ground includes:

[0087] Transmit infrared signals to ground measurement points;

[0088] Receive infrared signals reflected from the ground;

[0089] The distance to the ground is calculated based on the time difference between signal transmission and reception and the infrared propagation speed;

[0090] Measurement data is stored in local memory.

[0091] The infrared ranging module periodically transmits infrared signals to the ground measurement point according to the preset measurement interval. After the infrared signal encounters the ground, it is reflected back to the ranging module. The module calculates the distance from the crossing line to the ground measurement point, i.e. the distance to the ground, based on the time difference between signal transmission and reception and the propagation speed of the infrared signal, and stores the measurement data in the device's local memory.

[0092] In this embodiment of the invention, a data reporting and early warning processing step is also included:

[0093] For normal monitoring data, it is sent to the remote monitoring center via BeiDou communication according to the preset transmission cycle;

[0094] For early warning information, priority transmission is immediately triggered, and the information is simultaneously sent to the remote monitoring center and the terminals of relevant personnel.

[0095] After receiving the data, the remote monitoring center stores, displays, and processes alarms, and generates a troubleshooting task sheet containing location, time, and abnormal data.

[0096] Among them, the solar power module converts light energy into electrical energy and provides working power for each module in the rangefinder;

[0097] Upon receiving the early warning information, the remote monitoring center triggers an audible and visual alarm on the monitoring platform and automatically generates a fault work order containing the geographical location, abnormal distance value, and warning time.

[0098] The BeiDou navigation module receives positioning signals from BeiDou satellites in real time. By analyzing the positioning signals, it obtains the precise location information (latitude and longitude) of the rangefinder and associates the location information with the ground distance data collected at the same time to form a complete data record containing location, time, and ground distance, ensuring that each measurement data corresponds to the specific route location.

[0099] During the data acquisition process, the device's intelligent data processing module will perform preliminary screening and verification of the acquired ground distance data, eliminating abnormal data caused by accidental interference (such as momentary bird obstruction, temporary movement of ground objects, etc.) (such as sudden large fluctuations in measurement data, exceeding reasonable range, etc.), to ensure the validity of the acquired data.

[0100] The data processing module periodically analyzes and processes the collected valid data, comparing each measured distance to the ground with a preset safe distance threshold to determine whether the current distance to the ground is within a safe range.

[0101] If the measured distance to the ground is greater than or equal to the safe distance threshold, the crossing line is determined to be in a safe operating state. The data processing module integrates the location information, measurement data, time information, and safety status ("normal") into a complete monitoring data record.

[0102] If the measured distance to the ground is less than the safe distance threshold, the crossing line is determined to be in an unsafe state. The data processing module immediately generates an early warning message, which includes the current location information, measurement data (actual distance to the ground), safe distance threshold, time information, and safety status ("abnormal-early warning"). At the same time, the difference between the actual distance and the safe threshold is calculated to provide a reference for staff to judge the severity of the danger.

[0103] For monitoring data recording under normal conditions, the device transmits the data in real time to the remote monitoring center via the communication function of the Beidou navigation module, according to a preset transmission interval (which can be the same as the measurement interval or adjusted according to the data volume, such as transmitting once every 30 minutes). After receiving the data, the server at the remote monitoring center stores and organizes the data, and displays the changing trend of the distance between the crossing line and the ground and the current location information in the form of charts (such as line graphs and bar graphs) on the monitoring platform, so that staff can view it in real time.

[0104] When an early warning message is generated, the device is not limited by the preset transmission interval and immediately transmits the early warning message to the remote monitoring center through the Beidou communication module. At the same time, the early warning message is sent to the mobile terminal of the designated staff via SMS or APP push, ensuring that the staff can receive the early warning message as soon as possible.

[0105] After receiving the early warning information, the remote monitoring center issues an audible and visual alarm signal on the monitoring platform to remind the monitoring personnel. At the same time, the early warning information is archived and a fault investigation task sheet is automatically generated. The task sheet includes the location information of the faulty line (map coordinates generated based on Beidou positioning information), abnormal distance data, early warning time, etc., so that staff can quickly go to the site to investigate the fault.

[0106] After receiving the warning information and the fault investigation task, the staff quickly arrived at the faulty line section to conduct on-site inspection based on the location information in the task and with the help of the navigation function of the Beidou Navigation System. They verified the cause of the abnormal distance between the crossing line and the ground (such as trees growing too tall, the line sagging due to icing, or the ground height rising due to terrain subsidence).

[0107] Staff members transmit the results of on-site inspections (such as the cause of the anomaly, the actual distance remeasurement data, on-site photos, etc.) to the remote monitoring center via mobile terminals. The monitoring center formulates corresponding disposal measures based on the feedback information (such as arranging personnel to prune trees, organizing forces to remove ice from the lines, adjusting the height of the line towers, etc.) and issues the disposal measures to the on-site staff.

[0108] On-site personnel followed the procedures, and during the process, they could report the progress to the monitoring center in real time via mobile terminals. The monitoring center monitored the effectiveness of the response by transmitting real-time ground distance data from a rangefinder. When the measurement data showed that the distance between the crossing line and the ground had recovered to above the safe threshold, the monitoring center confirmed that the fault had been eliminated, lifted the warning status, and archived the response results and recovery status, completing a full real-time monitoring and fault handling process.

[0109] In this embodiment of the invention, the infrared ranging in the power distribution network is non-vertically installed, for example, the rangefinder is mounted on a pole and measures the ground at an angle. In this case, it is necessary to first calculate the slant range of the infrared signal, then convert it to a vertical distance, and at the same time correct for environmental and equipment errors. The formula for calculating the infrared slant range is as follows:

[0110] Lslope = [c0 × (1 + k1 × T + k2 × H) × Δt / 2] - ΔDsystem;

[0111] Where, Lslope: the slope distance from the infrared measurement line to the ground target point (unit: m);

[0112] c0: The speed of infrared signal propagation in a vacuum (fixed value, 3.0 × 10⁻⁶) 8 m / s);

[0113] k1: Temperature correction factor (empirical value, -9.8 × 10⁻) 7 / ℃, increasing temperature T will decrease the speed of light);

[0114] k2: Humidity correction factor (empirical value, -1.5 × 10⁻) 8 / %RH, an increase in humidity H slightly reduces the speed of light);

[0115] T: Ambient temperature (unit: °C, collected in real time by the rangefinder sensor);

[0116] H: Ambient humidity (unit: %RH, collected in real time by the rangefinder sensor);

[0117] Δt: Round-trip time difference of infrared signal (unit: s, measured by the timing module of the rangefinder);

[0118] ΔD system: Inherent system error of the rangefinder (unit: m, factory calibration, usually ±0.005~±0.02m).

[0119] If the rangefinder is installed at an angle θ to the horizontal plane (which needs to be measured in advance using an inclinometer), the slant distance must be converted into the vertical distance using trigonometric functions (a core indicator of safe distance in power distribution networks).

[0120] Dactual = Lslope × sinθ;

[0121] D_actual: Actual vertical distance of the line to the ground (unit: m, the core value ultimately used for safety assessment).

[0122] θ: The angle between the infrared rangefinder's emission direction and the horizontal plane (unit: °, θ>0, i.e., tilting downwards to measure the ground).

[0123] Lslant: Infrared slant range (unit: m) calculated by Formula 1.

[0124] If the rangefinder is installed vertically downwards (θ=90°), then sinθ=1, and in this case, D actually = L_slope, so no additional conversion is needed.

[0125] The safe distance for power distribution networks is not a fixed value and needs to be dynamically adjusted according to voltage level, environmental type, and meteorological conditions (refer to DL / T5220-2021 and GB50061-2025) to obtain the "safety threshold under the current scenario".

[0126] First, determine the basic safety distance D for the corresponding scenario (obtained by looking up a table; the core parameters are as follows):

[0127] voltage level Environment type Basic safety distance Dbasic (m) Below 1kV Residential area 6.0 1~10kV Residential area 6.5 (bare conductor) / 6.0 (insulation) 1~10kV Highway surface 7.0 (bare conductor) / 6.5 (insulation) 35kV Residential area 7.0

[0128] High temperatures increase conductor sag (reducing distance to ground), and icing exacerbates conductor load. Therefore, foundation D needs to be modified to obtain the "safety threshold under current weather conditions," where D is safe.

[0129] D_safety = D_base + Δf + Δd_ice;

[0130] Wherein, D safety: the dynamically corrected line-to-ground safety distance threshold (unit: m, the benchmark value for judging safety).

[0131] D. Basic: Basic safety distance (unit: m) obtained from the table above;

[0132] Δf: Conductor sag increment (unit: m, high temperature causes sag to increase, requiring an additional safety distance), calculation formula: Δf=α×L²×ΔT / (8×H0) (α is the conductor thermal expansion coefficient, L is the span, ΔT is the temperature difference between the actual temperature and the design temperature, H0 is the design sag).

[0133] Δd_ice: Icing correction (unit: m, increased in heavy icing areas, 0 in light icing areas, empirical value: 0.3~0.5m in medium icing areas, 0.8~1.2m in heavy icing areas).

[0134] The safety of the line is determined by the difference between "actual vertical distance Dactual" and "dynamic safety threshold Dsafe", and is divided into three levels: "normal", "warning", and "alarm".

[0135] The logic for determining the safety status is as follows:

[0136] 1. If Dactual ≥ Dsafe → safe state (no intervention required);

[0137] 2. If D_safe - ΔD_warning ≤ D_actual < D_safe → warning status (requires attention and investigation of potential risks);

[0138] 3. If Dactual < Dsafe - ΔD, a warning / alarm status is triggered (immediate action is required to prevent accidents).

[0139] Among them, ΔD warning: warning threshold (unit: m, set according to operation and maintenance experience, usually 0.5~1.0m, such as ΔD warning = 0.5m for 10kV residential line, that is, warning when the distance is less than 6.0m, and alarm when it is less than 5.5m).

[0140] D_actual: The actual vertical distance to the ground calculated by Formula 2 (unit: m);

[0141] D-Safety: Dynamic safety threshold calculated by Formula 3 (unit: m).

[0142] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the invention to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A solar-powered BeiDou positioning information sharing cross-line rangefinder, characterized in that, include: The housing includes an upper housing and a lower housing; A solar power module, located on the upper housing, is used to provide power to the rangefinder. An infrared ranging module, located on the lower housing, is used to monitor the distance between the crossing line and the ground. The central processing module, located inside the lower housing, is used to receive and process the measurement information from the infrared ranging module; The BeiDou positioning and short message module is located inside the lower housing. It is used to pre-store the BeiDou card number of the background monitoring center, and to receive the measurement information and positioning information processed by the central processing module, and send them to the background monitoring center through the BeiDou short message function.

2. The solar-powered BeiDou positioning information sharing cross-line rangefinder according to claim 1, characterized in that, The solar power module includes: a solar panel and an energy storage battery; The solar panel is laid on the outer surface of the upper housing, and the energy storage battery is installed inside the upper housing. The solar panel is connected to the energy storage battery through a connecting wire passing through a waterproof hole.

3. The solar-powered BeiDou positioning information sharing cross-line rangefinder according to claim 1, characterized in that, The infrared ranging module includes an infrared light generator and an infrared light receiver. The infrared light generator is used to emit infrared light to the ground measurement point. The infrared light reflected by the ground is received by the infrared light receiver. By calculating the time difference between transmission and reception, the distance between the cable and the ground is obtained.

4. The solar-powered BeiDou positioning information sharing cross-line rangefinder according to claim 1, characterized in that, The upper and lower housings are connected by a hinge on one side, and the upper and lower housings are connected by bolts after being fastened together.

5. The solar-powered BeiDou positioning information sharing cross-line rangefinder according to claim 1, characterized in that, The upper housing includes an upper base plate with a first groove; the lower housing includes a lower base plate with a second groove, the first groove and the second groove together forming a through hole for installing cables when the housing is closed.

6. The solar-powered BeiDou positioning information sharing cross-line rangefinder according to claim 1, characterized in that, The lower housing is filled with resin injection molding liquid to fix internal components and enhance protection.

7. A solar-powered BeiDou positioning information sharing and cross-line ranging method, characterized in that, The solar-powered BeiDou positioning information sharing cross-line rangefinder as described in any one of claims 1-6 includes: The distance to the ground from the cross-line to the ground measurement point is measured at preset time intervals using an infrared ranging module. The real-time location information of the rangefinder is obtained through the BeiDou positioning and short message module; By associating the distance to the ground, location information, and corresponding time, a complete data record is formed; The distance to the ground is compared with a preset safe distance threshold to determine whether the line is in a safe state. If the distance to the ground is less than the safe distance threshold, an early warning message will be generated; Using the BeiDou positioning and short message module, normal monitoring data is sent to the remote monitoring center at set intervals, and early warning information is uploaded in real time with priority.

8. The solar-powered BeiDou positioning information sharing and cross-line ranging method according to claim 7, characterized in that, The steps for the infrared ranging module to measure the distance to the ground include: Transmit infrared signals to ground measurement points; Receive infrared signals reflected from the ground; The distance to the ground is calculated based on the time difference between signal transmission and reception and the infrared propagation speed; Measurement data is stored in local memory.

9. The solar-powered BeiDou positioning information sharing and cross-line ranging method according to claim 7, characterized in that, It also includes data reporting and early warning processing steps: For normal monitoring data, it is sent to the remote monitoring center via BeiDou communication according to the preset transmission cycle; For early warning information, priority transmission is immediately triggered, and the information is simultaneously sent to the remote monitoring center and the terminals of relevant personnel. After receiving the data, the remote monitoring center stores, displays, and processes alarms, and generates a troubleshooting task sheet containing location, time, and abnormal data.

10. The solar-powered BeiDou positioning information sharing and cross-line ranging method according to claim 7, characterized in that, The solar power module converts light energy into electrical energy and provides power to the various modules inside the rangefinder. Upon receiving the early warning information, the remote monitoring center triggers an audible and visual alarm on the monitoring platform and automatically generates a fault work order containing the geographical location, abnormal distance value, and warning time.

Images