Real-time monitoring method and device for tree contact line

Abstract

The present invention discloses a real-time monitoring method for tree-contact lines, including determining a monitoring area; obtaining data information within the monitoring area; calculating an alarm coefficient; setting a monitoring device and setting a scanning angle; setting a monitoring radius; calculating an alarm coefficient within the scanning angle and monitoring and alarming in real time. The present invention also discloses a monitoring device for implementing the real-time monitoring method for tree-contact lines. The present invention takes into account the terrain type, tree type and current status, and realizes real-time monitoring and alarming of tree-contact lines through a single-point laser radar, and has high reliability, good real-time performance, high monitoring efficiency and accurate and reliable monitoring results.

Description

Technical Field

[0001] The invention belongs to the field of electrical automation, and in particular relates to a real-time monitoring method and a monitoring device for tree contact with a wire. Background Art

[0002] With the development of economy and technology and the improvement of people's living standards, electricity has become an indispensable secondary energy source in people's production and life, bringing endless convenience to people's production and life. Therefore, the stable and reliable operation of the power system has become one of the most important tasks of the power system.

[0003] Due to the particularity of transmission lines, they are often laid in mountainous areas, forest areas and other places with dense trees. When the high-voltage line touches the branches, the line will be grounded, and the grounding will be displayed and an alarm will be sounded. The branch grounding is only instantaneous when there is wind. The part of the branch that touches the line will be burned and detached from the line, and the grounding is over at this time. However, with the increasing frequency of extreme weather, rain, snow or humid weather, if a person happens to touch the tree or pass under the tree after the tree touches the line, the person will be electrocuted or shocked by the step voltage. Therefore, it is necessary to monitor the tree touching the line in real time.

[0004] However, since the growth rate of trees is related to the tree species, terrain, and the climate of the growing environment, there are a large number of monitoring points and a wide range of monitoring is required. Relying on manpower to monitor trees and bamboos is extremely costly and inefficient; while using drones for monitoring has problems with monitoring effectiveness and accuracy. Summary of the invention

[0005] One of the purposes of the present invention is to provide a real-time monitoring method for tree contact lines with high reliability, good real-time performance, high monitoring efficiency and accurate and reliable monitoring results.

[0006] A second object of the present invention is to provide a monitoring device for implementing the tree-contact line real-time monitoring method.

[0007] The real-time monitoring method for tree contact line provided by the present invention comprises the following steps:

[0008] S1. Determine the monitoring area;

[0009] S2. Obtain data information within the monitoring area;

[0010] S3. Calculate the alarm coefficient based on the data information obtained in step S2;

[0011] S4. Set the monitoring device and set the scanning angle;

[0012] S5. Set the monitoring radius according to the distance from the actual tree to the actual line;

[0013] S6. Calculate the alarm coefficient within the scanning angle according to the data obtained in steps S3 to S5;

[0014] S7. Perform real-time monitoring and alarm according to the alarm coefficient obtained in step S6.

[0015] The data information in the monitoring area described in step S2 specifically includes tree type data information, terrain data information, tower data information and line voltage level information in the monitoring area.

[0016] The calculation of the alarm coefficient in step S3 is specifically to calculate the alarm coefficient β using the following formula:

[0017] β=a*b*h1*k

[0018] Wherein a is the tree growth environment type factor, and it is set that if the tree is bamboo, a=3, if the tree is pine, a=1, and for the remaining trees, a=2; b is the terrain factor, and if the terrain is mountainous, b=1.2, and for the remaining terrain, b=1; h1 is the actual height of the tower; k is the voltage level, and it is stipulated that if the line voltage level is 500kv, k=5, if the line voltage level is 220kv, k=3, and for the remaining voltage levels, k=2.

[0019] The setting of the monitoring radius in step S5 is specifically to set the monitoring radius r using the following rules:

[0020] If the distance d from the actual tree to the actual line satisfies d≤10 meters, the monitoring radius r=30;

[0021] If the distance d from the actual tree to the actual line satisfies 10m<d≤20m, the monitoring radius r=20;

[0022] If the distance d from the actual tree to the actual line satisfies 20m<d≤30m, the monitoring radius r=10;

[0023] If the distance d from the actual tree to the actual line satisfies d>30 meters, the monitoring radius r=0.

[0024] The step S6 of calculating the alarm coefficient within the scanning angle is specifically to use the following formula to calculate the alarm coefficient ε:

[0025] ε=β×r

[0026] Wherein β is the alarm coefficient obtained in step S3; r is the monitoring radius obtained in step S5.

[0027] In step S7, according to the alarm coefficient obtained in step S6, real-time monitoring and alarm are performed, specifically, the alarm is performed using the following rules:

[0028] If the alarm coefficient ε≥50, the alarm will be triggered directly;

[0029] If the alarm coefficient is 30≤ε<50, a Class I warning is issued;

[0030] If the alarm coefficient is 10≤ε<30, a second-class warning is issued;

[0031] If the alarm coefficient 0≤ε<10, a third type of warning will be issued.

[0032] The present invention also provides a monitoring device for implementing the real-time monitoring method of tree-touching lines, comprising a power module, a control module, a laser measurement module, a data communication module, a photographing module and a storage module; the laser measurement module, the data communication module, the photographing module and the storage module are all connected to the control module; the power module supplies power to the monitoring device for the real-time monitoring method of tree-touching lines; the laser measurement module is used to monitor the distance between trees and lines, and upload the monitoring results to the control module; the control module is used to receive monitoring information sent by a single-point laser radar module, control the photographing module to obtain image data information and receive the obtained image data information, and perform data exchange with the outside through the data communication module; the photographing module is used to receive instructions, take photos of the status between trees and lines, and upload the photographing results to the control module; the storage module is used to store data of the monitoring device for the real-time monitoring method of tree-touching lines.

[0033] The control module is composed of a control chip of model MSP430F149; the camera module is composed of a video decoding chip of model SAA7113H; the data communication module is composed of a communication module of model GTM900B; the laser measurement module is a 480-line laser radar; and the storage module is composed of a storage chip of model AT24C512.

[0034] The tree-contact line real-time monitoring method and monitoring device provided by the present invention take into account the terrain type, tree type and current status, and realize real-time monitoring and alarm of tree-contact lines through a single-point laser radar, and have high reliability, good real-time performance, high monitoring efficiency and accurate and reliable monitoring results. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The figure is a schematic diagram of the method flow of the present invention.

[0036] Figure 2 It is a functional module diagram of the device of the present invention.

[0037] Figure 3 The figure is a schematic diagram of the circuit principle of the power module of the device of the present invention.

[0038] Figure 4 The figure is a schematic diagram of the circuit principle of the laser measurement module of the device of the present invention.

[0039] Figure 5 The figure is a schematic diagram of the circuit principle of the data communication module of the device of the present invention.

[0040] Figure 6 The figure is a schematic diagram of the circuit principle of the storage module of the device of the present invention.

[0041] Figure 7 The figure is a schematic diagram of the circuit principle of the control module of the device of the present invention. DETAILED DESCRIPTION

[0042] like Figure 1 The method flow chart of the method of the present invention is shown as follows: The real-time monitoring method of tree contact line provided by the present invention comprises the following steps:

[0043] S1. Determine the monitoring area;

[0044] S2. Obtain data information within the monitoring area; specifically, tree type data information, terrain data information, tower data information and line voltage level information within the monitoring area;

[0045] S3. Calculate the alarm coefficient according to the data information obtained in step S2; specifically, the alarm coefficient β is calculated using the following formula:

[0046] β=a*b*h1*k

[0047] Where a is the tree growth environment type factor, and it is set that if the tree is bamboo, a=3, if the tree is pine, a=1, and the remaining trees are a=2; b is the terrain factor, and if the terrain is mountainous, b=1.2, and the remaining terrain is b=1; h1 is the actual height of the tower; k is the voltage level, and it is stipulated that if the line voltage level is 500kv, k=5, if the line voltage level is 220kv, k=3, and the remaining voltage levels are k=2;

[0048] S4. Set the monitoring device and set the scanning angle;

[0049] S5. Set the monitoring radius according to the distance from the actual tree to the actual line; specifically, the monitoring radius r is set using the following rules:

[0050] If the distance d from the actual tree to the actual line satisfies d≤10 meters, the monitoring radius r=30;

[0051] If the distance d from the actual tree to the actual line satisfies 10m<d≤20m, the monitoring radius r=20;

[0052] If the distance d from the actual tree to the actual line satisfies 20m<d≤30m, the monitoring radius r=10;

[0053] If the distance d from the actual tree to the actual line satisfies d>30 meters, the monitoring radius r=0;

[0054] S6. Calculate the alarm coefficient within the scanning angle according to the data obtained in steps S3 to S5; specifically, the alarm coefficient ε is calculated using the following formula:

[0055] ε=β×r

[0056] Where β is the alarm coefficient obtained in step S3; r is the monitoring radius obtained in step S5;

[0057] S7. Perform real-time monitoring and alarming according to the alarm coefficient obtained in step S6; specifically, the following rules are used for alarming:

[0058] If the alarm coefficient ε≥50, the alarm will be triggered directly;

[0059] If the alarm coefficient is 30≤ε<50, a Class I warning is issued;

[0060] If the alarm coefficient is 10≤ε<30, a second-class warning is issued;

[0061] If the alarm coefficient 0≤ε<10, a third type of warning will be issued.

[0062] like Figure 2 The figure shows a functional module diagram of the device of the present invention: the monitoring device for implementing the real-time monitoring method of tree-touching lines provided by the present invention comprises a power module, a control module, a laser measurement module, a data communication module, a photographing module and a storage module; the laser measurement module, the data communication module, the photographing module and the storage module are all connected to the control module; the power module supplies power to the monitoring device of the real-time monitoring method of tree-touching lines; the laser measurement module is used to monitor the distance between trees and lines, and upload the monitoring results to the control module; the control module is used to receive the monitoring information sent by the single-point laser radar module, control the photographing module to obtain image data information and receive the obtained image data information, and exchange data with the outside through the data communication module; the photographing module is used to receive instructions, take pictures of the status between trees and lines, and upload the photographing results to the control module; the storage module is used to store data of the monitoring device of the real-time monitoring method of tree-touching lines.

[0063] like Figure 3The figure shows a schematic diagram of the circuit principle of the power module of the device of the present invention: the 12V power signal of the device is converted into a stable 4V power signal VD4V through chip U6 (model LM2596-ADJ); the 12V power signal is converted into a stable 3.3V power signal VCC3.3 through chip U5 (model AMS1117-3.3); at the same time, the 12V power signal is converted into a stable 5V power signal VCC5V through chip U9 (model LM2596-5); finally, the 12V power signal is also followed and isolated by a voltage follower, and then input into the control module for voltage monitoring.

[0064] When implementing:

[0065] For voltage monitoring: the 12V power supply signal is grounded and filtered through capacitor C32, and then divided and sampled by resistors R47 and R49, and then connected to the input non-inverting terminal of the operational amplifier U3A (model TLC27L2); the operational amplifier U3A constitutes a voltage follower, and its output terminal outputs the sampling signal of the 12V power supply signal through resistor R51, and uploads it to the control module; the diode DW7 is a protection diode, which is used to clamp the sampled signal to ensure the pin safety of the control module.

[0066] For the 4V power supply circuit: the 12V power supply signal is connected to pin 1 of chip U6, and is also grounded and filtered through capacitors C6 and C7; pin 5 of chip U6 is directly grounded through a pull-down resistor R14 to ensure the pin level is stable; pin 3 of chip U6 is directly grounded; pin 2 of chip U6 is an output pin, and its output power supply signal is grounded and clamped through a diode D1, and is also filtered through an inductor L1 and capacitors C9 and C10, and then protected against overcurrent through a fuse F4, ultimately obtaining a stable 4V power supply signal VD4V; at the same time, the output 4V power supply signal is also sampled through resistors R15 and R13, and the sampled output voltage signal is uploaded to pin 4 of chip U6, thereby achieving stable control of the output voltage of chip U6.

[0067] For the 3.3V power supply circuit: the 12V power supply signal is directly connected to pin 3 of chip U5, and is also grounded and filtered through capacitors C5 and C23; pin 1 of chip U5 is directly grounded; pins 2 and 4 of chip U5 are both output pins, which directly output stable power supply signals, and output a stable 3.3V power supply signal VCC3.3 through fuse F3.

[0068] For the 5V power supply circuit: the 12V power supply signal is input to pin 1 of chip U9, and is also grounded and filtered through capacitor C22, and input protection is performed through diode D2; pins 3 and 5 of chip U9 are directly grounded; pin 2 of chip U9 is the output pin, which outputs a stable power supply signal, which is then protected from overvoltage by diode D3, filtered by inductor L2 and capacitors C24 and C25, and then protected from overcurrent by fuse F6, and finally outputs a stable 5V power supply signal VCC5V; at the same time, the output stable power supply signal is also directly connected to pin 4 of chip U9 for output feedback, thereby achieving stable control of the output voltage of chip U9.

[0069] like Figure 4 The figure shows a schematic diagram of the circuit principle of the laser measurement module of the device of the present invention: the laser measurement module is a 480-line laser radar; the laser radar outputs two output signals: one of which is an analog signal YL_AIN (first output signal), which is protected by a protection diode TVS1, and then protected by an overcurrent protection by a fuse F1, and then grounded and filtered by a capacitor C1, and then divided and sampled by resistors R1 and R2, and the sampled first output signal is uploaded to the control module; the second is a bus communication signal (485_B and 485_A), which is converted by a chip U13 (model MAX485) and connected to the communication pin of the control module.

[0070] For bus communication signals: bus communication signals 485_B and 485_A output by the laser radar, signal 485_B is protected against overcurrent by fuse F7, and then protected against overvoltage by TVS tube (TVS9), and then connected to pin 7 of chip U13; similarly, signal 485_A is protected against overcurrent by fuse F13, and then protected against overvoltage by TVS tube (TVS10), and then connected to pin 6 of chip U13; TVS tube TVS8 is connected between signals 485_B and 485_A to protect the signal lines. The level is stable; Pin 8 of chip U13 is connected to the power signal VCC3.3 and takes power; Pin 5 of chip U13 is directly grounded; Pin 1 of chip U13 is connected to signal RX through resistor R55, and is directly connected to the communication pin of the control module; Pin 4 of chip U13 is connected to signal TX through resistor R56, and is directly connected to the communication pin of the control module; Pins 2 and 3 of chip U13 are directly grounded through resistor R54, and the stability of the pin level is maintained; at the same time, Pin 2 of chip U13 is also connected to the control module and obtains the control signal.

[0071] In addition, the camera module is composed of a video decoding chip model SAA7113H. The output end of the video decoding chip is also a 485 interface, so the output end of the video decoding chip can be directly connected to the bus communication signals 485_B and 485_A in the figure.

[0072] like Figure 5 The data communication module of the device of the present invention is shown as a schematic diagram of the circuit principle: the data communication module is composed of a communication module of model GTM900B; the communication module includes a communication chip GTM900B and a SIM card module (labeled U8 in the figure).

[0073] For the SIM card module: Pins 2 and 4 of U8 are connected to the power signal SIM_VCC and take power; Pin 3 of U8 is directly grounded through the pull-down resistor R25; Pin 5 of U8 is connected to Pin 6 of the communication chip GTM900B and obtains the reset signal; Pin 6 of U8 is connected to Pin 9 of the communication chip GTM900B and interacts with the clock signal; Pin 1 of U8 is connected to Pin 7 of the communication chip GTM900B and interacts with the data signal.

[0074] For the communication chip GTM900B: Pin 1 of GTM900B is connected to the power signal and takes power; Pin 2 of the communication chip GTM900B is grounded through a pull-down resistor R26, and is connected to the control module through resistor R27 and obtains the power signal; Pins 5 and 4 of the communication chip GTM900B are communication data pins, which are connected to the communication pins of the control module and exchange communication data; Pin 2 of the communication chip GTM900B is directly grounded; Pin 10 of the communication chip GTM900B is directly connected to the control module and obtains the reset signal, and is also connected to the power signal through resistor R24 ​​to ensure the level stability of the pin when it is idle.

[0075] like Figure 6 The figure shows a schematic diagram of the circuit principle of the storage module of the device of the present invention: the storage module is composed of a storage chip of model AT24C512; pins 1 to 4 of chip U14 are directly grounded; pin 7 of chip U14 is directly grounded; pin 8 of chip U14 is connected to the power signal VCC3.3 and draws power; pins 5 and 6 of chip U14 are bus data pins, which are connected to the control module and perform data exchange; at the same time, pins 5 and 6 of chip U14 are also connected to the power signal through respective pull-up resistors (R74 and R75) to ensure the level stability of the pins when idle.

[0076] like Figure 7The schematic diagram of the circuit principle of the control module of the device of the present invention is shown as follows: the control module is composed of a control chip of model MSP430F149; pins 52 and 53 of chip A1 are connected to crystal oscillator Y2 and obtain crystal oscillator signals; pin 1 of chip A1 is connected to power supply signal VCC3.3 and takes power; pin 4 of chip A1 is an input pin, directly connected to output signal A5 of the voltage monitoring part of the power module, and obtains the voltage monitoring signal; pin 19 of chip A1 is connected to the communication module and outputs the power control signal; pins 32 and 33 of chip A1 are connected to the laser measurement module and perform data exchange; pins 34 and 35 of chip A1 are connected to the communication module and perform data exchange; pins 11, 24 to 27, 30, 31, and 40 to 51 of chip A1 are directly grounded.

Claims

1. A real-time monitoring method for tree contact line, comprising the following steps: S1. Determine the monitoring area; S2. Obtain data information within the monitoring area; specifically, tree type data information, terrain data information, tower data information and line voltage level information within the monitoring area; S3. Calculate the alarm coefficient according to the data information obtained in step S2; specifically, the alarm coefficient β is calculated using the following formula: β=a*b*h1*k Where a is the tree growth environment type factor, and it is set that if the tree is bamboo, a=3, if the tree is pine, a=1, and the remaining trees are a=2; b is the terrain factor, and if the terrain is mountainous, b=1.2, and the remaining terrain is b=1; h1 is the actual height of the tower; k is the voltage level, and it is stipulated that if the line voltage level is 500kv, k=5, if the line voltage level is 220kv, k=3, and the remaining voltage levels are k=2; S4. Set the monitoring device and set the scanning angle; S5. Set the monitoring radius according to the distance from the actual tree to the actual line; specifically, the monitoring radius r is set using the following rules: If the distance d from the actual tree to the actual line satisfies d≤10 meters, the monitoring radius r=30; If the distance d from the actual tree to the actual line satisfies 10m<d≤20m, the monitoring radius r=20; If the distance d from the actual tree to the actual line satisfies 20m<d≤30m, the monitoring radius r=10; If the distance d from the actual tree to the actual line satisfies d>30 meters, the monitoring radius r=0; S6. Calculate the alarm coefficient within the scanning angle according to the data obtained in steps S3 to S5; specifically, the alarm coefficient ε is calculated using the following formula: ε=β×r Where β is the alarm coefficient obtained in step S3; r is the monitoring radius obtained in step S5; S7. Perform real-time monitoring and alarm according to the alarm coefficient obtained in step S6.

2. The real-time monitoring method for tree contact line according to claim 1 is characterized in that In step S7, according to the alarm coefficient obtained in step S6, real-time monitoring and alarm are performed, specifically, the alarm is performed using the following rules: If the alarm coefficient ε≥50, the alarm will be triggered directly; If the alarm coefficient is 30≤ε<50, a Class I warning is issued; If the alarm coefficient is 10≤ε<30, a second-class warning is issued; If the alarm coefficient 0≤ε<10, a third type of warning will be issued.

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