Power transmission line tower inclination monitoring system

Abstract

According to the power transmission line tower inclination monitoring system, a shell is fixedly arranged on a selected base around a tower, a limiting seat is fixedly arranged at the right end of the inner side of the shell, a mounting hole is formed in the limiting seat, a limiting block is fixedly arranged at the left end of the mounting hole, one end of a mounting column is embedded into one end of the mounting hole, and the other end of the mounting column is embedded into the limiting block. The other end of the installation column extends out of the installation hole and is fixedly connected with the plate face of the limiting plate, the installation column is sleeved with the spring and located between the limiting plate and the limiting block, the end, embedded into the installation hole, of the installation column is fixedly provided with a first sliding block, and the first sliding block can slide in the axial direction of the installation hole. The second polar plate is fixedly arranged on the end face, facing the limiting plate, of the base, the first polar plate and the second polar plate directly face each other to form a detection capacitor, and the first plug plugs the other end of the mounting hole; the detection capacitor is arranged in the detection circuit, and the detection circuit is used for detecting capacitance change of the detection capacitor and outputting the capacitance change to the control transmission unit.

Description

Technical Field

[0001] The invention relates to an electric power monitoring system, in particular to a transmission line tower tilt monitoring system. Background Art

[0002] The pole tower of the overhead line is an important equipment in the power system, used to support the overhead line. Whether the pole tower is tilted is one of the important operating indicators of the power system. When the pole tower is tilted, it is easy to cause the line arc hammer between the two pole towers to be too low and closer to the ground, which poses a serious safety hazard. If the tilt of the pole tower is not handled in time, it is easy to collapse, thereby seriously damaging the transmission line and causing a major power supply accident.

[0003] In the prior art, the tilt of transmission line towers is generally determined by using images, gyroscopes, etc. Images are easily affected by weather and angles, and the judgment accuracy is low. Gyroscopes are easily affected by environmental factors such as temperature and humidity, and need to be calibrated frequently.

[0004] In the prior art, a capacitive detection method has also been proposed. However, the existing capacitive detection method is also easily affected by the environment, resulting in low accuracy of the result.

[0005] Therefore, in order to solve the above technical problems, it is urgent to propose a new technical means. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a transmission line tower inclination monitoring system, which monitors whether the tower of the transmission line is tilted based on the capacitance detection method. It has high sensitivity and relatively accurate monitoring results, and can effectively reduce environmental interference, thereby effectively ensuring the accuracy of the monitoring results and being able to provide timely warnings.

[0007] The present invention provides a transmission line tower tilt monitoring system, comprising a housing, a first pole plate, a second pole plate, a mounting column, a limit plate, a spring, a limit seat, a first slider, a limit block, a first plug, a detection circuit, a force transmission mechanism and a control transmission unit;

[0008] The shell is fixedly arranged on a base selected around the pole tower, the limit seat is fixedly arranged on the inner right end of the shell, the limit seat is provided with a mounting hole, the left end of the mounting hole is fixedly provided with a limit block, one end of the mounting post is embedded in one end of the mounting hole, the other end of the mounting post extends out of the mounting hole and the end is fixedly connected to the plate surface of the limit plate, the spring sleeve is wrapped around the mounting post and is located between the limit plate and the limit block, the first slider is fixedly arranged on one end of the mounting post embedded in the mounting hole, the first slider can slide axially along the mounting hole, the first electrode plate is fixedly arranged on the limit plate, the second electrode plate is fixedly arranged on the end face of the base facing the limit plate, the first electrode plate and the second electrode plate are opposite to form a detection capacitor, and the first plug blocks the other end of the mounting hole;

[0009] It also includes a force transmission mechanism, one end of which is fixedly arranged on the pole tower, and the other end of which extends into the shell to apply a pre-tightening force to the spring to keep the first electrode plate and the second electrode plate at a set distance in the initial state;

[0010] The detection capacitor is arranged in a detection circuit, and the detection circuit is used to detect the capacitance change of the detection capacitor and output it to the control transmission unit.

[0011] Furthermore, the force transmission mechanism includes a first connecting rod, a second connecting rod, a driving plate and a second slider, the second slider can slide along the inner wall of the shell, the second slider is fixedly set on the second connecting rod, the driving plate is fixedly connected to the right end of the second connecting rod, the left end of the second connecting rod extends out of the shell and is ball-jointed with the right end of the first connecting rod, and the left end of the first connecting rod is fixedly set on the pole tower.

[0012] Furthermore, a second plug is fixedly provided on the inner side of the left end of the shell, and the second connecting rod passes through the second plug.

[0013] Furthermore, the detection circuit includes a capacitor C1, a detection capacitor C2, a resistor R1 and a resistor R2, one end of the capacitor C1 is connected to a DC power supply, the other end of the capacitor C1 is grounded through the detection capacitor C2, the common connection point between the capacitor C1 and the detection capacitor C2 is connected in series with the resistor R1 and the resistor R2 and then grounded, and the common connection point between the resistor R1 and the resistor R2 serves as the output end of the detection circuit.

[0014] Furthermore, the control transmission unit includes a control chip, a GPS timing circuit, a GPS positioning circuit, an AD sampling circuit and a signal transmission module;

[0015] The input end of the control chip is connected to the output end of the AD sampling circuit, the input end of the AD sampling circuit is connected to the output end of the detection circuit, the GPS positioning circuit and the GPS timing circuit are communicated with the control chip, and the control chip is communicated with the monitoring center through the transmission module.

[0016] Further, the monitoring center includes a monitoring server and an early warning module;

[0017] The monitoring server is connected to the control chip through the transmission module, and the monitoring server uploads the capacitance change of the detection capacitor through the control chip to output the warning instruction to the warning module.

[0018] The beneficial effects of the present invention are as follows: Through the present invention, the tilt of the transmission line tower is monitored based on the capacitance detection method, which has high sensitivity and relatively accurate monitoring results, and can effectively reduce environmental interference, thereby effectively ensuring the accuracy of the monitoring results and providing timely warnings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the electrical structure of the present invention.

[0022] Figure 3 It is the principle diagram of the detection circuit of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below:

[0024] First, it should be noted that the left, right, etc. directions described below are for reference only to the accompanying drawings and are not intended to limit actual results.

[0025] A transmission line tower tilt monitoring system provided by the present invention comprises a housing 5, a first pole plate 9, a second pole plate 11, a mounting column 10, a limit plate 7, a spring 8, a limit seat 15, a first slider 14, a limit block 12, a first plug 16, a detection circuit, a force transmission mechanism and a control transmission unit;

[0026] The shell is fixedly arranged on a base selected around the pole tower, the limit seat is fixedly arranged on the inner right end of the shell, the limit seat is provided with a mounting hole, the left end of the mounting hole is fixedly provided with a limit block, one end of the mounting post is embedded in one end of the mounting hole, the other end of the mounting post extends out of the mounting hole and the end is fixedly connected to the plate surface of the limit plate, the spring sleeve is wrapped around the mounting post and is located between the limit plate and the limit block, the first slider is fixedly arranged on one end of the mounting post embedded in the mounting hole, the first slider can slide axially along the mounting hole, the first electrode plate is fixedly arranged on the limit plate, the second electrode plate is fixedly arranged on the end face of the base facing the limit plate, the first electrode plate and the second electrode plate are opposite to form a detection capacitor, and the first plug blocks the other end of the mounting hole;

[0027] It also includes a force transmission mechanism, one end of which is fixedly arranged on the pole tower, and the other end of which extends into the shell to apply a pre-tightening force to the spring to keep the first electrode plate and the second electrode plate at a set distance in the initial state;

[0028] The detection capacitor is arranged in a detection circuit, and the detection circuit is used to detect the capacitance change of the detection capacitor and output it to the control transmission unit.

[0029] The force transmission mechanism includes a first connecting rod 1, a second connecting rod 2, a driving plate 6 and a second slider 4. The second slider can slide along the inner wall of the shell. The second slider is fixedly set on the second connecting rod. The driving plate is fixedly connected to the right end of the second connecting rod. The left end of the second connecting rod extends out of the shell and is ball-jointed with the right end of the first connecting rod. The left end of the first connecting rod is fixedly set on the pole tower. Under the above structure, during initial use, the driving plate is abutted against the limit plate, thereby compressing the spring and maintaining the initial set distance between the first electrode plate and the second electrode plate. The initial capacitance of the detection capacitor is determined at this distance, and the first connecting rod and the second connecting rod are connected to increase the sensitivity of the detection. No matter which direction the tower is tilted, it can be monitored without causing damage to the results of the entire system. Through the above structure, the tilt of the tower of the transmission line is monitored based on the capacitance detection method. It has high sensitivity and more accurate monitoring results, and can effectively reduce environmental interference, thereby effectively ensuring the accuracy of the monitoring results, and can provide timely warnings, and can effectively avoid false alarms. Of course, there is a situation where if the tower vibrates, the capacitance of C2 will also change. In this case, if the capacitance of C2 changes to the initial state, it indicates that vibration occurs, and when the tower is cleared, the capacitance of C2 changes to a trend and will not recur.

[0030] Among them, a second plug 3 is fixedly arranged on the inner side of the left end of the housing, and the second connecting rod passes through the second plug. The first plug and the second plug can ensure the relative sealing of the entire housing, avoiding the influence of the external environment on the detection capacitor, such as humidity and air flow.

[0031] In this embodiment, the detection circuit includes a capacitor C1, a detection capacitor C2, a resistor R1 and a resistor R2, one end of the capacitor C1 is connected to a DC power supply, the other end of the capacitor C1 is grounded through the detection capacitor C2, the common connection point between the capacitor C1 and the detection capacitor C2 is connected in series with the resistor R1 and the resistor R2 and then grounded, and the common connection point between the resistor R1 and the resistor R2 serves as the output end of the detection circuit. When the initial positions of the first plate and the second plate are determined, the voltage division of C2 is also determined. When the pole tower tilts, the distance between the two plates will change, thereby changing the capacitance, and then causing the voltage division value of C2 to change, so that the change in the voltage division value reflects the tilt state of the pole tower.

[0032] In this embodiment, the control transmission unit includes a control chip, a GPS timing circuit, a GPS positioning circuit, an AD sampling circuit and a signal transmission module;

[0033] The input end of the control chip is connected to the output end of the AD sampling circuit, the input end of the AD sampling circuit is connected to the output end of the detection circuit, the GPS positioning circuit and the GPS timing circuit are communicatively connected to the control chip, and the control chip is communicatively connected to the monitoring center through a transmission module, wherein the control chip adopts an existing single-chip microcomputer, the AD sampling circuit adopts an existing circuit, the transmission module adopts an existing 5G module, the GPS timing circuit is used to ensure the synchronization of the entire system, and the GPS positioning circuit is used to characterize the current position of the tower.

[0034] In this embodiment, the monitoring center includes a monitoring server and an early warning module;

[0035] The monitoring server is connected to the control chip through the transmission module, and the monitoring server uploads the capacitance change of the detection capacitor through the control chip to output the warning instruction to the warning module.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A transmission line tower tilt monitoring system, characterized in that: It includes a shell, a first electrode plate, a second electrode plate, a mounting column, a limit plate, a spring, a limit seat, a first slider, a limit block, a first plug, a detection circuit, a force transmission mechanism and a control transmission unit; The shell is fixedly arranged on a base selected around the pole tower, the limit seat is fixedly arranged on the inner right end of the shell, the limit seat is provided with a mounting hole, the left end of the mounting hole is fixedly provided with a limit block, one end of the mounting post is embedded in one end of the mounting hole, the other end of the mounting post extends out of the mounting hole and the end is fixedly connected to the plate surface of the limit plate, the spring sleeve is wrapped around the mounting post and is located between the limit plate and the limit block, the first slider is fixedly arranged on one end of the mounting post embedded in the mounting hole, the first slider can slide axially along the mounting hole, the first electrode plate is fixedly arranged on the limit plate, the second electrode plate is fixedly arranged on the end face of the base facing the limit plate, the first electrode plate and the second electrode plate are opposite to form a detection capacitor, and the first plug blocks the other end of the mounting hole; It also includes a force transmission mechanism, one end of which is fixedly arranged on the pole tower, and the other end of which extends into the shell to apply a pre-tightening force to the spring to keep the first electrode plate and the second electrode plate at a set distance in the initial state; The detection capacitor is arranged in a detection circuit, and the detection circuit is used to detect the capacitance change of the detection capacitor and output it to the control transmission unit.

2. The transmission line tower tilt monitoring system according to claim 1, characterized in that: The force transmission mechanism includes a first connecting rod, a second connecting rod, a driving plate and a second slider. The second slider can slide along the inner wall of the shell. The second slider is fixedly set on the second connecting rod. The driving plate is fixedly connected to the right end of the second connecting rod. The left end of the second connecting rod extends out of the shell and is ball-jointed with the right end of the first connecting rod. The left end of the first connecting rod is fixedly set on the pole tower.

3. The transmission line tower tilt monitoring system according to claim 1, characterized in that: A second plug is fixedly arranged on the inner side of the left end of the shell, and the second connecting rod passes through the second plug.

4. The transmission line tower tilt monitoring system according to claim 1, characterized in that: The detection circuit includes a capacitor C1, a detection capacitor C2, a resistor R1 and a resistor R2, one end of the capacitor C1 is connected to a DC power supply, the other end of the capacitor C1 is grounded through the detection capacitor C2, the common connection point between the capacitor C1 and the detection capacitor C2 is connected in series with the resistor R1 and the resistor R2 and then grounded, and the common connection point between the resistor R1 and the resistor R2 serves as the output end of the detection circuit.

5. The transmission line tower tilt monitoring system according to claim 1, characterized in that: The control transmission unit includes a control chip, a GPS timing circuit, a GPS positioning circuit, an AD sampling circuit and a signal transmission module; The input end of the control chip is connected to the output end of the AD sampling circuit, the input end of the AD sampling circuit is connected to the output end of the detection circuit, the GPS positioning circuit and the GPS timing circuit are communicated with the control chip, and the control chip is communicated with the monitoring center through the transmission module.

6. The transmission line tower tilt monitoring system according to claim 5, characterized in that: The monitoring center includes a monitoring server and an early warning module; The monitoring server is connected to the control chip through the transmission module, and the monitoring server uploads the capacitance change of the detection capacitor through the control chip to output the warning instruction to the warning module.

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