CN111982065B - Method for monitoring inclination of pole tower of overhead transmission line - Google Patents
Method for monitoring inclination of pole tower of overhead transmission line Download PDFInfo
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- CN111982065B CN111982065B CN202010621414.1A CN202010621414A CN111982065B CN 111982065 B CN111982065 B CN 111982065B CN 202010621414 A CN202010621414 A CN 202010621414A CN 111982065 B CN111982065 B CN 111982065B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/165—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation combined with non-inertial navigation instruments
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention discloses a method for monitoring the inclination of a tower of an overhead transmission line, which is characterized in that an X-axis inclination angle and a Y-axis inclination angle of a double-axis inclination angle sensor or an X-axis inclination angle, a Y-axis inclination angle and a Z-axis inclination angle of a three-axis inclination angle sensor are collected and calculated and converted into a forward inclination angle and a transverse inclination angle along the transmission direction of the overhead transmission line, and when the real-time calculation result of the forward inclination angle or the transverse inclination angle is greater than a threshold value, an alarm signal is provided. The method is suitable for calculation of a background system and calculation of a tower monitoring device on site, is wide in applicability, is intuitive to display based on the direction of the transmission line along the line dip angle and the transverse dip angle, and is more convenient to operate and maintain.
Description
Technical Field
The invention relates to a method for monitoring the inclination of a pole tower of an overhead transmission line, belonging to the technical field of on-line monitoring of power equipment.
Background
The tower is an important component of the overhead transmission line and is a direct part for bearing the stress and the external force of the lead. The strict control of the inclination of the iron tower is an important link for ensuring the safe operation of the power transmission line.
The reasons for the tower inclination are as follows:
1) The tower leg foundation height difference exceeds the allowable deviation. After the construction of the iron tower foundation of a construction unit is finished, the height difference of the tower leg foundation does not accord with the design drawing, and the phenomenon that the tower is inclined is easy to occur when the deviation allowed by regulations and specifications is exceeded.
2) The fastening rate of the iron tower bolt does not meet the requirement. The fastening rate of the bolts of the iron tower before line tightening can not reach the standard, and the line tightening construction is carried out, so that the tower material is easy to bend under the action of external force, and the inclination of the tower is caused.
3) And (4) uneven settlement of the foundation. The environment is damaged, and soil erosion and water loss cause the conditions of foundation displacement, uneven foundation settlement and the like of the power transmission line, and the tower is inclined.
4) And constructing a unit of wild construction. When a construction unit constructs towers and erects the line, the construction is not carried out according to the operation instruction and the construction scheme, the tower materials are seriously damaged by external force, and the tower inclination occurs.
5) Is damaged by external force. The external conditions such as conductor icing, typhoon and the like are all sure to enable the conductor icing to exceed the external force which can be borne by the iron tower, so that the tower is inclined.
The harm caused by the inclination of the tower is mainly as follows:
1) The insulator is easy to transversely step because the transverse line of the tower is inclined, the gap between a live part and the tower is too small after the line runs, and the electrical safety distance is insufficient to cause discharge.
2) The tower inclines along the line direction, so that the tower is easy to incline towards the body, the sag of the conducting wire is caused to change, the tension of the conducting wire is caused to change, and the safety distance of the conducting wire to the ground is insufficient.
3) The inclination of the tower easily causes the insulator to step, and especially the ground wire is smaller in distance from the hanging point to the ground wire, so that the stress of the ground wire cross arm is increased to a certain extent when the ground wire is stepped to a certain extent, and the phenomena of cross arm distortion, tower head deflection and the like can be caused when the designed bearing capacity is exceeded.
4) After the tower inclined insulator walks, a wire clamp of a lead and a ground wire can be displaced, the lead and the ground wire can slide in the wire clamp, and sag is enlarged when the slide is inconsistent, so that the safety distances of the lead to the ground, tree obstacles and the like are changed.
The current online monitoring system for the overhead transmission line generally adopts a double-shaft tilt angle sensor and a three-shaft tilt angle sensor, but the tilt angle sensors give an X-shaft tilt angle and a Y-shaft tilt angle, so that the operation and maintenance are not intuitive.
Disclosure of Invention
The invention aims to provide a method for monitoring the inclination of a tower of an overhead transmission line.
The technical scheme adopted by the invention is as follows:
the invention provides a method for monitoring the inclination of a tower of an overhead transmission line, which comprises the following steps:
acquiring an X-axis inclination angle and a Y-axis inclination angle of the double-shaft inclination angle sensor;
calculating a down-line inclination angle and a transverse inclination angle along the power transmission direction of the overhead line based on an X-axis inclination angle and a Y-axis inclination angle of the double-shaft inclination angle sensor;
and carrying out early warning on the inclination of the overhead transmission line tower according to the consequent inclination angle and the transverse inclination angle.
Further, the acquiring an X-axis inclination angle and a Y-axis inclination angle of the dual-axis inclination angle sensor includes:
the dual-axis tilt sensor directly provides an X-axis tilt and a Y-axis tilt,
alternatively, the first and second liquid crystal display panels may be,
calculating an X-axis inclination angle X and a Y-axis inclination angle Y according to an X-axis gravity acceleration component xx and a Y-axis gravity acceleration component yy provided by the double-axis inclination angle sensor:
x＝arctan(xx/g)·180/π
y＝arctan(yy/g)·180/π
where g is the vertical gravitational acceleration.
Further, the calculating of the downline inclination angle and the transverse inclination angle in the overhead line power transmission direction based on the X-axis inclination angle and the Y-axis inclination angle of the dual-axis inclination angle sensor includes:
acquiring a positive overhead line power transmission direction and an X-axis included angle _ X, and calculating a forward line inclination angle s _ result and a transverse inclination angle t _ result by combining an X-axis inclination angle and a Y-axis inclination angle:
x’＝tan(x·π/180)
y’＝tan(y·π/180)
angle_x’＝angle_x·π/180
s＝x’·cos(angle_x’)+y’·sin(angle_x’)
t＝y’·cos(angle_x’)-x’·sin(angle_x’)
s_result＝arctan(s)·180/π
t_result＝arctan(t)·180/π
wherein x ', y ', angle _ x ', s and t are intermediate variables of the calculation;
when s is a positive number, the forward inclination angle s _ result is an inclination angle along the positive direction of power transmission,
when s is a negative number, the consequent inclination angle s _ result is an inclination angle along the reverse direction of power transmission;
when t is a positive number, the lateral inclination angle t _ result is a left lateral inclination angle, wherein the left lateral direction is facing the positive direction of power transmission,
when t is negative, the lateral inclination t _ result is the right lateral inclination.
Further, the calculating of the downline inclination angle and the transverse inclination angle in the overhead line power transmission direction based on the X-axis inclination angle and the Y-axis inclination angle of the dual-axis inclination angle sensor includes:
acquiring an included angle _ Y between the positive power transmission direction of the overhead line and the Y axis, and calculating a consequent inclination angle s _ result and a transverse inclination angle t _ result by combining an X-axis inclination angle X and a Y-axis inclination angle Y:
x’＝tan(x·π/180)
y’＝tan(y·π/180)
angle_y’＝(angle_y+90)·π/180
s＝x’·cos(angle_y’)+y’·sin(angle_y’)
t＝y’·cos(angle_y’)-x’·sin(angle_y’)
s_result＝arctan(s)·180/π
t_result＝arctan(t)·180/π
wherein x ', y ', angle _ y ', s and t are intermediate variables of the calculation;
when s is a positive number, the forward inclination angle s _ result is an inclination angle along the positive direction of power transmission,
when s is a negative number, the consequent inclination angle s _ result is an inclination angle along the reverse direction of power transmission;
when t is a positive number, the lateral inclination angle t _ result is a left lateral inclination angle, wherein the left lateral direction is facing the positive direction of power transmission,
when t is negative, the lateral inclination t _ result is the right lateral inclination.
Further, the early warning of the inclination of the overhead transmission line tower according to the consequent inclination angle and the transverse inclination angle comprises the following steps:
comparing the forward inclination angle s _ result with a preset forward inclination angle setting fixed value, setting the out-of-limit state to be 1 when the forward inclination angle s _ result exceeds the forward inclination angle setting fixed value, giving out forward inclination angle warning information, and otherwise, setting the out-of-limit state to be 0;
and comparing the transverse inclination angle t _ result with a preset transverse inclination angle setting fixed value, setting the out-of-limit state to be 1 when the transverse inclination angle t _ result exceeds the transverse inclination angle setting fixed value, giving transverse inclination angle warning information, and otherwise, setting the out-of-limit state to be 0.
Further, in the above-mentioned case,
calculating a forward line inclination angle and a transverse inclination angle along the power transmission direction of the overhead line by the on-site tower monitoring device, comparing set fixed values, giving alarm information when the set fixed values are exceeded, and sending the calculated forward line inclination angle, transverse inclination angle and alarm information to a middle station or directly sending the calculated forward line inclination angle, transverse inclination angle and alarm information to background systems of various services;
alternatively, the first and second electrodes may be,
and the gravity acceleration component or the inclination angle information of the double-shaft inclination angle sensor is sent to the middle station or directly sent to each service background system, the middle station or the service background system calculates the straight line inclination angle and the transverse inclination angle along the power transmission direction of the overhead line, a setting fixed value is compared, and alarm information is given when the setting fixed value is exceeded.
Further, the information is sent to the middle station or directly sent to each service background system, including:
sending the data in a wireless or wired communication mode;
alternatively, the first and second electrodes may be,
sending the data to the sink node through the interval;
alternatively, the first and second liquid crystal display panels may be,
the interval signals are transmitted to the access nodes by the wireless communication multi-hop networking mode after being uploaded by the adjacent interval access nodes, and the information of a plurality of interval nodes is concentrated and then is transmitted by the unified nodes.
The invention also provides a method for monitoring the inclination of the pole tower of the overhead transmission line, which comprises the following steps:
acquiring an X-axis inclination angle and a Y-axis inclination angle of a three-axis inclination angle sensor;
calculating a consequent inclination angle and a transverse inclination angle along the overhead line power transmission direction based on an X-axis inclination angle and a Y-axis inclination angle of a three-axis inclination angle sensor;
and carrying out the early warning of the inclination of the overhead transmission line tower according to the down-line inclination angle and the transverse inclination angle.
Further, the acquiring the X-axis inclination angle and the Y-axis inclination angle of the three-axis inclination angle sensor includes:
the three-axis tilt sensor directly provides the X-axis tilt and the Y-axis tilt,
alternatively, the first and second electrodes may be,
calculating an X-axis inclination angle X and a Y-axis inclination angle Y according to an X-axis gravity acceleration component xx, a Y-axis gravity acceleration component yy and a Z-axis gravity acceleration component zz provided by the triaxial inclination angle sensor:
where g is the vertical gravitational acceleration.
Further, the calculating of the downline inclination angle and the transverse inclination angle in the overhead line power transmission direction based on the X-axis inclination angle and the Y-axis inclination angle of the dual-axis inclination angle sensor includes:
acquiring an included angle _ X of a positive power transmission direction and an X-axis of an overhead line, and calculating a consequent inclination angle s _ result and a transverse inclination angle t _ result by combining an X-axis inclination angle and a Y-axis inclination angle:
x’＝tan(x·π/180)
y’＝tan(y·π/180)
angle_x’＝angle_x·π/180
s＝x’·cos(angle_x’)+y’·sin(angle_x’)
t＝y’·cos(angle_x’)-x’·sin(angle_x’)
s_result＝arctan(s)·180/π
t_result＝arctan(t)·180/π
wherein x ', y ', angle _ x ', s and t are intermediate variables of the calculation;
when s is a positive number, the forward inclination angle s _ result is an inclination angle along the positive direction of power transmission,
when s is a negative number, the consequent inclination angle s _ result is an inclination angle along the reverse direction of power transmission;
when t is a positive number, the lateral inclination angle t _ result is a left lateral inclination angle, wherein the left lateral direction is facing the positive direction of power transmission,
when t is negative, the lateral inclination t _ result is the right lateral inclination.
Further, the calculating of the downline inclination angle and the transverse inclination angle in the overhead line power transmission direction based on the X-axis inclination angle and the Y-axis inclination angle of the dual-axis inclination angle sensor includes:
acquiring an included angle _ Y between the positive power transmission direction of the overhead line and the Y axis, and calculating a consequent inclination angle s _ result and a transverse inclination angle t _ result by combining an X-axis inclination angle X and a Y-axis inclination angle Y:
x’＝tan(x·π/180)
y’＝tan(y·π/180)
angle_y’＝(angle_y+90)·π/180
s＝x’·cos(angle_y’)+y’·sin(angle_y’)
t＝y’·cos(angle_y’)-x’·sin(angle_y’)
s_result＝arctan(s)·180/π
t_result＝arctan(t)·180/π
wherein x ', y ', angle _ y ', s and t are intermediate variables of the calculation;
when s is a positive number, the forward inclination angle s _ result is an inclination angle along the positive direction of power transmission,
when s is a negative number, the consequent inclination angle s _ result is an inclination angle along the reverse direction of power transmission;
when t is a positive number, the lateral inclination angle t _ result is a left lateral inclination angle, wherein the left lateral direction faces the positive direction of power transmission,
when t is negative, the lateral inclination t _ result is the right lateral inclination.
Further, according to following line inclination and horizontal inclination carry out overhead transmission line shaft tower slope early warning, include:
comparing the forward inclination angle s _ result with a preset forward inclination angle setting fixed value, setting the out-of-limit state to be 1 when the forward inclination angle s _ result exceeds the forward inclination angle setting fixed value, giving out forward inclination angle warning information, and otherwise, setting the out-of-limit state to be 0;
and comparing the transverse inclination angle t _ result with a preset transverse inclination angle setting fixed value, setting the out-of-limit state to be 1 when the transverse inclination angle t _ result exceeds the transverse inclination angle setting fixed value, giving transverse inclination angle warning information, and otherwise, setting the out-of-limit state to be 0.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a method for monitoring the inclination of a tower of an overhead transmission line, which is characterized in that an X-axis inclination angle and a Y-axis inclination angle of a double-axis inclination angle sensor or an X-axis inclination angle, a Y-axis inclination angle and a Z-axis inclination angle of a three-axis inclination angle sensor are collected and calculated and converted into a forward inclination angle and a transverse inclination angle along the transmission direction of the overhead transmission line, and when the real-time calculation result of the forward inclination angle or the transverse inclination angle is greater than a threshold value, an alarm signal is provided. The method is suitable for computing a background system and computing an on-site tower monitoring device, is wide in applicability, is intuitive to display based on the direction of the transmission line along the line dip angle and the transverse dip angle, and is more convenient to operate and maintain.
Drawings
FIG. 1 is a flow chart of the calculation of the feather inclination angle and the transverse inclination angle of the dual-axis inclination angle sensor according to the embodiment of the invention;
fig. 2 is a flow chart of calculation of the feather inclination angle and the lateral inclination angle of the triaxial inclination angle sensor in the embodiment of the present invention.
Detailed Description
The invention is further described below. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
The embodiment of the invention discloses an overhead transmission line tower inclination monitoring method based on a double-shaft inclination angle sensor, which comprises the following steps of:
the method comprises the following steps: if the two-axis tilt sensor provides the X-axis gravity acceleration component xx (in m/s) 2 ) Y-axis gravitational acceleration component yy (unit m/s) 2 ) Then, the X-axis inclination X (unit °), the Y-axis inclination Y (unit °) are calculated:
x＝arctan(xx/g)·180/π
y＝arctan(yy/g)·180/π
where g is the vertical gravitational acceleration, 9.8 may be preferred.
If the double-shaft inclination angle sensor directly provides the X-axis inclination angle X and the Y-axis inclination angle Y, the next step can be directly carried out.
Step two: obtaining an included angle _ X (unit degree) between the transmission positive direction of the overhead line and an X axis through a horizontal tester, and calculating a forward line inclination angle s _ result (unit degree) and a transverse inclination angle t _ result (unit degree) by combining an X axis inclination angle X and a Y axis inclination angle Y:
x’＝tan(x·π/180)
y’＝tan(y·π/180)
angle_x’＝angle_x·π/180
s＝x’·cos(angle_x’)+y’·sin(angle_x’)
t＝y’·cos(angle_x’)-x’·sin(angle_x’)
s_result＝arctan(s)·180/π
t_result＝arctan(t)·180/π
where x ', y ', angle _ x ', s, and t are intermediate variables of the calculation.
When s is a positive number, the result s _ result of the calculation of the inline tilt angle is the tilt angle in the positive power transmission direction, and when s is a negative number, the result s _ result of the calculation of the inline tilt angle is the tilt angle in the negative power transmission direction.
When t is a positive number, the lateral inclination calculation result t _ result is a left lateral inclination (facing the positive direction of power transmission), and when t is a negative number, the lateral inclination calculation result t _ result is a right lateral inclination.
Step three: comparing the calculated result s _ result of the forward inclination angle with a preset forward inclination angle setting fixed value, setting the out-of-limit state to be 1 when the setting fixed value is exceeded, and giving out forward inclination angle warning information, otherwise, setting the out-of-limit state to be 0;
and comparing the calculated transverse inclination angle calculation result t _ result with a preset transverse inclination angle setting fixed value, setting the out-of-limit state to be 1 when the setting fixed value is exceeded, and giving out transverse inclination angle warning information, otherwise, setting the out-of-limit state to be 0.
Example 2
The method comprises the following steps: according to the X-axis gravity acceleration component xx (unit m/s) provided by the double-axis tilt sensor 2 ) Y-axis gravitational acceleration component yy (unit m/s) 2 ) And calculating the following angles of X-axis inclination angle X (unit degree) and Y-axis inclination angle Y (unit degree):
x＝arctan(xx/g)·180/π
y＝arctan(yy/g)·180/π
wherein g is a vertical gravitational acceleration, and may be 9.8.
It should be noted that if the dual-axis tilt sensor directly provides the X-axis tilt X and the Y-axis tilt Y, the next step can be directly performed.
Step two, obtaining an included angle _ Y (unit degree) between the power transmission positive direction of the overhead line and the Y axis through a horizontal tester, and calculating a forward line inclination angle s _ result (unit degree) and a transverse inclination angle t _ result (unit degree) by combining an X-axis inclination angle X and a Y-axis inclination angle Y:
x’＝tan(x·π/180)
y’＝tan(y·π/180)
angle_y’＝(angle_y+90)·π/180
s＝x’·cos(angle_y’)+y’·sin(angle_y’)
t＝y’·cos(angle_y’)-x’·sin(angle_y’)
s_result＝arctan(s)·180/π
t_result＝arctan(t)·180/π
wherein x ', y ', angle _ y ', s and t are intermediate variables of the calculation.
When s is a positive number, the result s _ result of the calculation of the inline tilt angle is a tilt angle in the positive power transmission direction, and when s is a negative number, the result s _ result of the calculation of the inline tilt angle is a tilt angle in the negative power transmission direction.
When t is a positive number, the lateral inclination calculation result t _ result is a left lateral inclination (facing the positive direction of power transmission), and when t is a negative number, the lateral inclination calculation result t _ result is a right lateral inclination.
Step three: comparing the calculated result s _ result of the forward inclination angle with a preset forward inclination angle setting fixed value, and giving forward inclination angle warning information when the setting fixed value is exceeded;
and comparing the calculated transverse inclination angle calculation result t _ result with a preset transverse inclination angle setting fixed value, and giving transverse inclination angle warning information when the transverse inclination angle calculation result t _ result exceeds the setting fixed value.
Example 3
The embodiment of the invention provides an overhead transmission line tower inclination monitoring method based on a triaxial inclination angle sensor, as shown in fig. 2, the method comprises the following steps:
the method comprises the following steps: if the triaxial tilt sensor provides an X-axis gravitational acceleration component xx (in m/s) 2 ) Y-axis gravity acceleration degreeThe quantity yy (unit m/s) 2 ) Z-axis gravitational acceleration component zz (unit m/s) 2 ) Then, the X-axis inclination X (unit °), the Y-axis inclination Y (unit °):
if the three-axis tilt sensor directly provides the X-axis tilt X and the Y-axis tilt Y, the next step can be directly carried out.
Step two: obtaining an included angle _ X (unit degree) between the transmission positive direction of the overhead line and an X axis through a horizontal tester, and calculating a forward line inclination angle s _ result (unit degree) and a transverse inclination angle t _ result (unit degree) by combining an X axis inclination angle X and a Y axis inclination angle Y:
x’＝tan(x·π/180)
y’＝tan(y·π/180)
angle_x’＝angle_x·π/180
s＝x’·cos(angle_x’)+y’·sin(angle_x’)
t＝y’·cos(angle_x’)-x’·sin(angle_x’)
s_result＝arctan(s)·180/π
t_result＝arctan(t)·180/π
wherein x ', y ', angle _ x ', s and t are intermediate variables of the calculation.
When s is a positive number, the result s _ result of the calculation of the inline tilt angle is the tilt angle in the positive power transmission direction, and when s is a negative number, the result s _ result of the calculation of the inline tilt angle is the tilt angle in the negative power transmission direction.
When t is a positive number, the lateral inclination calculation result t _ result is a left lateral inclination (facing the positive direction of power transmission), and when t is a negative number, the lateral inclination calculation result t _ result is a right lateral inclination.
Step three: comparing the calculated forward inclination angle calculation result s _ result with a preset forward inclination angle setting fixed value, setting the out-of-limit state to be 1 when the setting fixed value is exceeded, and giving forward inclination angle warning information, otherwise setting the out-of-limit state to be 0;
and comparing the calculated transverse inclination angle calculation result t _ result with a preset transverse inclination angle setting fixed value, setting the out-of-limit state to be 1 when the setting fixed value is exceeded, and giving out transverse inclination angle warning information, otherwise, setting the out-of-limit state to be 0.
Example 4
The method comprises the following steps: if the triaxial tilt sensor provides an X-axis gravitational acceleration component xx (in m/s) 2 ) Y-axis gravitational acceleration component yy (unit m/s) 2 ) Z-axis gravitational acceleration component zz (unit m/s) 2 ) Then, the X-axis inclination X (unit °), the Y-axis inclination Y (unit °) are calculated:
if the three-axis tilt sensor directly provides the X-axis tilt X and the Y-axis tilt Y, the next step can be directly carried out.
Step two: obtaining an included angle _ Y (unit degree) between the power transmission positive direction of the overhead line and the Y axis through a horizontal tester, and calculating a forward line inclination angle s _ result (unit degree) and a transverse inclination angle t _ result (unit degree) by combining an X-axis inclination angle X and a Y-axis inclination angle Y:
x’＝tan(x·π/180)
y’＝tan(y·π/180)
angle_y’＝(angle_y+90)·π/180
s＝x’·cos(angle_y’)+y’·sin(angle_y’)
t＝y’·cos(angle_y’)-x’·sin(angle_y’)
s_result＝arctan(s)·180/π
t_result＝arctan(t)·180/π
wherein x ', y ', angle _ y ', s and t are intermediate variables of the calculation.
When s is a positive number, the result s _ result of the calculation of the inline tilt angle is the tilt angle in the positive power transmission direction, and when s is a negative number, the result s _ result of the calculation of the inline tilt angle is the tilt angle in the negative power transmission direction.
When t is a positive number, the lateral inclination calculation result t _ result is a left lateral inclination (facing the positive direction of power transmission), and when t is a negative number, the lateral inclination calculation result t _ result is a right lateral inclination.
Step three: comparing the calculated forward inclination angle calculation result s _ result with a preset forward inclination angle setting fixed value, setting the out-of-limit state to be 1 when the setting fixed value is exceeded, and giving forward inclination angle warning information, otherwise setting the out-of-limit state to be 0;
and comparing the calculated transverse inclination angle calculation result t _ result with a preset transverse inclination angle setting fixed value, setting the out-of-limit state to be 1 when the setting fixed value is exceeded, and giving transverse inclination angle warning information, otherwise, setting the out-of-limit state to be 0.
It should be noted that, in the above embodiment of the present invention, the in-situ tower monitoring device receives the gravity acceleration component or the inclination angle data information sent by the dual-axis inclination angle sensor, completes the calculation of the down-line inclination angle and the lateral inclination angle of the tower in situ, performs the comparison of the setting value, gives the alarm information, and sends the calculation result and the alarm information to the central station or directly to each service background system.
The embodiment of the invention can also send the gravity acceleration component or the inclination angle data information of the double-shaft inclination angle sensor to the middle station in a wireless or wired communication mode or directly to each service background system, the middle station or the service background system of an enterprise calculates the consequent inclination angle and the transverse inclination angle of the tower, compares the consequent inclination angle and the transverse inclination angle with the setting fixed value, and gives the alarm information when the absolute value exceeds the alarm threshold value.
Specifically, the uploading of the calculation result and the alarm information can be realized by the following three ways. The mode is directly sent, namely the local pole tower monitoring device accessed with the information sampled by the double-shaft inclination angle sensor is directly sent in a wireless or wired mode, and the mode of direct communication sending can be used only when the local needs to be covered by communication signals. And the second mode is uploaded by the local interval aggregation node, namely, information is aggregated according to intervals and then is uploaded, and the mode of direct communication uploading can be used only when the local area needs to be covered by communication signals. And the third mode is to transmit the information through the adjacent interval access nodes, namely after the information of a plurality of interval nodes is gathered, the information is transmitted through the unified node without being limited by the coverage of local communication signals, and the interval signals are transmitted to the access nodes in a wireless communication multi-hop networking mode.
Specifically, the wired communication is performed through an optical fiber ethernet, a serial port, or the like.
The wireless communication methods include, but are not limited to, lora, wifi, NB-IoT, zigBee, microwave, bluetooth, etc.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (8)
1. A method for monitoring the inclination of a pole tower of an overhead transmission line is characterized by comprising the following steps:
acquiring an X-axis inclination angle and a Y-axis inclination angle of the double-shaft inclination angle sensor;
calculating a consequent inclination angle and a transverse inclination angle in the overhead line power transmission direction based on an X-axis inclination angle and a Y-axis inclination angle of a double-shaft inclination angle sensor;
carrying out early warning on the inclination of the overhead transmission line tower according to the downline inclination angle and the transverse inclination angle;
the calculation of the consequent inclination angle and the transverse inclination angle in the overhead line power transmission direction based on the X-axis inclination angle and the Y-axis inclination angle of the double-axis inclination angle sensor comprises the following steps:
acquiring a positive overhead line power transmission direction and an X-axis included angle _ X, and calculating a forward line inclination angle s _ result and a transverse inclination angle t _ result by combining an X-axis inclination angle X and a Y-axis inclination angle Y:
x’＝tan(x·π/180)，
y’＝tan(y·π/180)，
angle_x’＝angle_x·π/180，
s＝x’·cos(angle_x’)+y’·sin(angle_x’)，
t＝y’·cos(angle_x’)-x’·sin(angle_x’)，
s_result＝arctan(s)·180/π，
t_result＝arctan(t)·180/π，
wherein x ', y ', angle _ x ', s and t are intermediate variables of the calculation;
when s is a positive number, the forward line inclination angle s _ result is an inclination angle in the positive transmission direction,
when s is a negative number, the consequent inclination angle s _ result is an inclination angle along the reverse direction of power transmission;
when t is a positive number, the lateral inclination angle t _ result is a left lateral inclination angle, wherein the left lateral direction faces the positive direction of power transmission,
when t is a negative number, the transverse inclination angle t _ result is right transverse inclination;
alternatively, the first and second electrodes may be,
acquiring an included angle _ Y between a power transmission positive direction of the overhead line and a Y-axis, and calculating a forward line inclination angle s _ result and a transverse inclination angle t _ result by combining an X-axis inclination angle X and a Y-axis inclination angle Y:
x’＝tan(x·π/180)，
y’＝tan(y·π/180)，
angle_y’＝(angle_y+90)·π/180，
s＝x’·cos(angle_y’)+y’·sin(angle_y’)，
t＝y’·cos(angle_y’)-x’·sin(angle_y’)，
s_result＝arctan(s)·180/π，
t_result＝arctan(t)·180/π，
wherein x ', y ', angle _ y ', s and t are intermediate variables of the calculation;
when s is a positive number, the forward line inclination angle s _ result is an inclination angle in the positive transmission direction,
when s is a negative number, the consequent inclination angle s _ result is an inclination angle along the reverse direction of power transmission;
when t is a positive number, the lateral inclination angle t _ result is a left lateral inclination angle, wherein the left lateral direction is facing the positive direction of power transmission,
when t is negative, the lateral inclination t _ result is the right lateral inclination.
2. The method of claim 1, wherein the obtaining of the X-axis inclination angle and the Y-axis inclination angle of the dual-axis inclination angle sensor comprises:
the dual-axis tilt sensor directly provides an X-axis tilt and a Y-axis tilt,
alternatively, the first and second liquid crystal display panels may be,
calculating an X-axis inclination angle X and a Y-axis inclination angle Y according to an X-axis gravity acceleration component xx and a Y-axis gravity acceleration component yy provided by the double-axis inclination angle sensor:
x＝arctan(xx/g)·180/π
y＝arctan(yy/g)·180/π
where g is the vertical gravitational acceleration.
3. The method for monitoring the inclination of the overhead transmission line tower according to claim 1, wherein the early warning of the inclination of the overhead transmission line tower according to the downline inclination angle and the transverse inclination angle comprises the following steps:
comparing the forward inclination angle s _ result with a preset forward inclination angle setting fixed value, setting the out-of-limit state to be 1 when the forward inclination angle s _ result exceeds the forward inclination angle setting fixed value, giving out forward inclination angle warning information, and otherwise, setting the out-of-limit state to be 0;
and comparing the transverse inclination angle t _ result with a preset transverse inclination angle setting fixed value, setting the out-of-limit state to be 1 when the transverse inclination angle t _ result exceeds the transverse inclination angle setting fixed value, giving transverse inclination angle warning information, and otherwise, setting the out-of-limit state to be 0.
4. The method for monitoring the inclination of the tower of the overhead transmission line according to claim 1,
calculating a forward line inclination angle and a transverse inclination angle along the power transmission direction of the overhead line by the on-site tower monitoring device, comparing set fixed values, giving alarm information when the set fixed values are exceeded, and sending the calculated forward line inclination angle, transverse inclination angle and alarm information to a middle station or directly sending the calculated forward line inclination angle, transverse inclination angle and alarm information to background systems of various services;
alternatively, the first and second electrodes may be,
and the gravity acceleration component or the inclination angle information of the double-shaft inclination angle sensor is sent to the middle station or directly sent to each service background system, the middle station or the service background system calculates the inline inclination angle and the transverse inclination angle along the overhead line power transmission direction, a setting fixed value is compared, and alarm information is given when the set fixed value is exceeded.
5. The method for monitoring the inclination of the tower of the overhead transmission line according to claim 4, wherein the step of sending information to a central station or directly to background systems of various services comprises the following steps:
sending the data in a wireless or wired communication mode;
alternatively, the first and second electrodes may be,
sending the data to the sink node through the interval;
alternatively, the first and second liquid crystal display panels may be,
the interval signals are transmitted to the access nodes by the wireless communication multi-hop networking mode after being sent by the adjacent interval access nodes and the information of a plurality of interval nodes is concentrated and then is sent by the unified nodes.
6. A method for monitoring the inclination of a tower of an overhead transmission line is characterized by comprising the following steps:
acquiring an X-axis inclination angle and a Y-axis inclination angle of a three-axis inclination angle sensor;
calculating a direct line inclination angle and a transverse inclination angle along the power transmission direction of the overhead line based on an X-axis inclination angle and a Y-axis inclination angle of the three-axis inclination angle sensor;
carrying out early warning on the inclination of the overhead transmission line tower according to the down-line inclination angle and the transverse inclination angle;
the calculation of the consequent inclination angle and the transverse inclination angle in the overhead line power transmission direction based on the X-axis inclination angle and the Y-axis inclination angle of the triaxial inclination angle sensor comprises the following steps:
acquiring an included angle _ X of a positive power transmission direction of the overhead line and an X-axis, and calculating a consequent inclination angle s _ result and a transverse inclination angle t _ result by combining an X-axis inclination angle X and a Y-axis inclination angle Y:
x’＝tan(x·π/180)，
y’＝tan(y·π/180)，
angle_x’＝angle_x·π/180，
s＝x’·cos(angle_x’)+y’·sin(angle_x’)，
t＝y’·cos(angle_x’)-x’·sin(angle_x’)，
s_result＝arctan(s)·180/π，
t_result＝arctan(t)·180/π，
wherein x ', y ', angle _ x ', s and t are intermediate variables of the calculation;
when s is a positive number, the forward line inclination angle s _ result is an inclination angle in the positive transmission direction,
when s is a negative number, the forward line dip angle s _ result is a dip angle along the reverse direction of power transmission;
when t is a positive number, the lateral inclination angle t _ result is a left lateral inclination angle, wherein the left lateral direction faces the positive direction of power transmission,
when t is a negative number, the transverse inclination angle t _ result is a right transverse inclination angle;
alternatively, the first and second electrodes may be,
acquiring an included angle _ Y between the positive power transmission direction of the overhead line and the Y axis, and calculating a consequent inclination angle s _ result and a transverse inclination angle t _ result by combining an X-axis inclination angle X and a Y-axis inclination angle Y:
x’＝tan(x·π/180)，
y’＝tan(y·π/180)，
angle_y’＝(angle_y+90)·π/180，
s＝x’·cos(angle_y’)+y’·sin(angle_y’)，
t＝y’·cos(angle_y’)-x’·sin(angle_y’)，
s_result＝arctan(s)·180/π，
t_result＝arctan(t)·180/π，
wherein x ', y ', angle _ y ', s and t are intermediate variables of the calculation;
when s is a positive number, the forward line inclination angle s _ result is an inclination angle in the positive transmission direction,
when s is a negative number, the forward line dip angle s _ result is a dip angle along the reverse direction of power transmission;
when t is a positive number, the lateral inclination angle t _ result is a left lateral inclination angle, wherein the left lateral direction faces the positive direction of power transmission,
when t is negative, the lateral inclination t _ result is the right lateral inclination.
7. The method for monitoring the inclination of the tower of the overhead transmission line according to claim 6, wherein the step of obtaining the X-axis inclination angle and the Y-axis inclination angle of the three-axis inclination angle sensor comprises the following steps:
the three-axis tilt sensor directly provides an X-axis tilt angle and a Y-axis tilt angle,
alternatively, the first and second electrodes may be,
calculating an X-axis inclination angle X and a Y-axis inclination angle Y according to an X-axis gravity acceleration component xx, a Y-axis gravity acceleration component yy and a Z-axis gravity acceleration component zz provided by the triaxial inclination angle sensor:
where g is the vertical gravitational acceleration.
8. The method for monitoring the inclination of the overhead transmission line tower according to claim 6, wherein the early warning of the inclination of the overhead transmission line tower according to the downline inclination angle and the transverse inclination angle comprises the following steps:
comparing the forward inclination angle s _ result with a preset forward inclination angle setting fixed value, setting the out-of-limit state to be 1 when the forward inclination angle setting fixed value is exceeded, giving out forward inclination angle warning information, and otherwise setting the out-of-limit state to be 0;
and comparing the transverse inclination angle t _ result with a preset transverse inclination angle setting fixed value, setting the out-of-limit state to be 1 when the transverse inclination angle t _ result exceeds the transverse inclination angle setting fixed value, giving transverse inclination angle warning information, and otherwise, setting the out-of-limit state to be 0.
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| CN103162667A (en) * | 2013-03-25 | 2013-06-19 | 西安工程大学 | Online monitoring system of gradient of extra-high voltage tower and monitoring method |
| CN110132344A (en) * | 2018-02-08 | 2019-08-16 | 国网湖北省电力有限公司襄阳供电公司 | A kind of communication monitoring system for transmission tower |
| CN111256657A (en) * | 2020-02-28 | 2020-06-09 | 国网山西省电力公司晋城供电公司 | Method and device for measuring inclination of tower, storage medium and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103162667A (en) * | 2013-03-25 | 2013-06-19 | 西安工程大学 | Online monitoring system of gradient of extra-high voltage tower and monitoring method |
| CN110132344A (en) * | 2018-02-08 | 2019-08-16 | 国网湖北省电力有限公司襄阳供电公司 | A kind of communication monitoring system for transmission tower |
| CN111256657A (en) * | 2020-02-28 | 2020-06-09 | 国网山西省电力公司晋城供电公司 | Method and device for measuring inclination of tower, storage medium and electronic equipment |
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