CN212179818U - Transmission line wire icing thickness measuring device - Google Patents

Abstract

The utility model discloses a transmission line wire icing thickness measurement device can solve the technical problem that current measuring device work load is big, with large costs and the error is big. The device comprises an unmanned aerial vehicle, a measuring head and a control screen; the unmanned aerial vehicle comprises an unmanned aerial vehicle flying frame and is used for the flying of the unmanned aerial vehicle; the unmanned aerial vehicle body is provided with a camera, so that the surrounding situation of the unmanned aerial vehicle and the measurement situation of the observation measuring head are partially observed; the unmanned aerial vehicle body is also provided with a radar detection module, so that the safety distance of the unmanned aerial vehicle is guaranteed; the unmanned aerial vehicle is also provided with a transposition motor to control the measurement angle; the measuring head comprises a measuring rod and a grating scale. The utility model discloses after the wire icing, under the state that transmission line did not have a power failure, step on the point to the icing thickness of wire body and measure, can provide effectual data support. The device has the advantages of simple structure, convenience in operation and accuracy in measurement, and can solve the problem that the wires cannot be quantized after being coated with ice.

Description

Transmission line wire icing thickness measuring device

Technical Field

The utility model relates to a power equipment technical field, concretely relates to transmission line wire icing thickness measurement device.

Background

In 1 month of 2008, serious line icing occurs in the middle of China, and partial power supply of more than 10 provinces is interrupted. Many lines collapse due to too thick ice coating, and the iron tower is overwhelmed, and casualties are also caused. Measurement of the ice coating thickness of the wire is necessary.

In the existing measurement measures for the thickness of the ice coated on the lead, a scheme adopted by many schemes is that the thickness of the ice coated is measured by erecting a simulation lead and using a vernier caliper; the thickness of the ice coating is calculated by measuring the comprehensive suspension load of the lead by installing a stress sensor; these methods have some problems in use: 1. by adopting the stress sensor scheme, the workload for installing the stress sensor is large through the reflection of field practical application; the cost is high; the installation is required to be carried out in a state of power failure of a line due to time limitation; potential safety hazards exist for normal operation of the line and personal safety; 2. the scheme of measuring the simulation lead is adopted, the actual application scene of the lead is not measured, and the deviation of the ice coating thickness is large.

In a word, the influence of snow disaster icing brings hidden dangers and accidents to the normal operation of the power transmission line; after the transmission line conductor is coated with ice, the current measuring means and method comprise the steps of installing a stress sensor for measurement, simulating conductor measurement and monitoring and checking pictures, but the method has the problems of inaccurate measurement, high cost, high construction difficulty and the like; the wire icing thickness value, namely the data reference basis, cannot be accurately obtained, and early warning, analysis and processing cannot be timely performed on the wire icing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of transmission line wire icing thickness measurement device can solve the technical problem that current measuring device work load is big, with large costs and the error is big.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a transmission line wire icing thickness measuring device comprises:

the system comprises an unmanned aerial vehicle part, a measurement part, a control screen part and a background master station system. The unmanned aerial vehicle part comprises a plurality of parts of an unmanned aerial vehicle flying frame, a camera, a radar detection module and a transposition motor; the measuring part comprises a measuring rod and a grating ruler; the control screen comprises a display screen and an operation keyboard. The device adopts unmanned aerial vehicle to carry on the measurement part, flies, controls the transposition motor through control screen remote control unmanned aerial vehicle and operates the measurement part, and measured data show on the control screen, and the video picture that the camera was gathered shows on the control screen to record a video in real time and preserve.

Wherein, the camera can convey the video picture of unmanned aerial vehicle about from top to bottom on control panel's the display screen often, supplies operating personnel to observe the circumstances on every side, guarantees to measure and accomplishes smoothly.

Radar detection module can detect the last distance from left to right around of unmanned aerial vehicle to guarantee unmanned aerial vehicle's safe distance and prevent the unmanned aerial vehicle collision, control panel can set up radar alarm distance, and when the distance of certain direction was less than the settlement distance, the corresponding direction sent the warning on operating panel, and the operating button of this direction of restriction.

Control panel, the video picture of 6 directions can be shown to the controller, and the data display area shows unmanned aerial vehicle height, reports to the police and measured data, left handle control measurement part, right handle control unmanned aerial vehicle.

According to the above technical scheme, the utility model discloses a transmission line wire icing thickness measurement device is behind the wire icing, and under the state that transmission line did not have a power failure, the point was stepped on to the icing thickness of wire body and is measured, can provide effectual data support. Through the construction of the device, the measures of early warning and defect elimination of conductor icing can be taken in advance, and the stable operation of the power transmission line is promoted.

The utility model provides a transmission line wire icing thickness measurement device, simple structure, convenient operation, measurement accuracy is high, is applied to various voltage level transmission line wire icing thickness measurement, solves current icing thickness measurement difficult, and data is inaccurate, problem such as with high costs.

The utility model discloses technical scheme's transmission line wire icing thickness measurement device has following beneficial effect:

1. the problem that the icing thickness of the wire cannot be measured can be solved, and the technical blank is filled;

2. the problem of quantification of the thickness of the ice coated on the wire can be solved, early warning can be carried out in advance, precaution can be taken in advance, and corresponding measures can be taken;

3. can bring economic effect, and can be used repeatedly after once input.

Drawings

Fig. 1 is a block diagram of the present invention;

fig. 2 is a schematic front view of the present invention;

fig. 3 is a schematic side view of the present invention;

fig. 4 is a schematic top view of the present invention;

fig. 5 is a schematic diagram of a radar detection module of the present invention;

FIG. 6 is a schematic view of an indexing motor according to the present invention;

fig. 7 is a schematic view of the measurement of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

As shown in fig. 1, the device for measuring the thickness of the ice coated on the wire of the power transmission line mainly comprises an unmanned aerial vehicle part, a measuring part, a control screen part and a background master station system.

The unmanned aerial vehicle part comprises an unmanned aerial vehicle flying frame, a camera, a radar detection module and a transposition motor;

the measuring part comprises a measuring rod and a grating ruler;

the control screen comprises a display screen and an operation keyboard.

The device adopts unmanned aerial vehicle to carry on the measurement part, flies, controls the transposition motor through control screen remote control unmanned aerial vehicle and operates the measurement part, and measured data show on the control screen, and the video picture that the camera was gathered shows on the control screen to record a video in real time and preserve. Meanwhile, the flying track of the unmanned aerial vehicle, the measured data and the video pictures collected by the camera can be uploaded to a server for display or storage.

The following detailed description is made with reference to the accompanying drawings:

as shown in the figures 2-4 of the drawings,

the unmanned aerial vehicle comprises an unmanned aerial vehicle body 13 and a control screen, wherein a radar detection module is arranged on the unmanned aerial vehicle body 13, so that the safety distance of the unmanned aerial vehicle is guaranteed;

also includes a measuring head;

the unmanned aerial vehicle body 13 is provided with a camera 1, and the camera 1 is used for observing the surrounding situation of the unmanned aerial vehicle and the measurement situation of the observation measuring head;

the unmanned aerial vehicle is also provided with a transposition motor 11 for controlling the measurement angle;

the measuring head comprises a measuring rod 2 and a grating ruler 12;

the control panel is provided with a 12-inch liquid crystal panel and a control part.

Description of the components and functions of the block diagram:

1. the camera is used for partially observing the surrounding situation of the unmanned aerial vehicle and observing the measurement situation of the measuring head.

2. The measuring rod is made of an insulating material, and the material can be selected from bakelite or alumina ceramics and is used for contacting a measured object.

3. A rotation axis through which the measuring head rotates.

4. The radar head detects the objects around on the unmanned aerial vehicle.

5. The motor refers to the motor of four screw of unmanned aerial vehicle.

6. A measuring motor by means of which the displacement of the measuring head is controlled.

7. And the data connector is used for connecting the connecting line between the measuring head and the unmanned aerial vehicle.

8. And the data line transmits the data of the grating ruler to the unmanned aerial vehicle.

9. The rotating shaft connecting wire is used for connecting the measuring part with the unmanned aerial vehicle, and the connecting wire is a flexible wire made of insulating materials, a nylon wire and the like.

10. The transposition bracing wire is a connecting wire used for adjusting the angle of the measuring head, and the connecting wire is a wire with a flexible wire made of insulating materials, a nylon wire and the like. The measuring head is indexed by rotating the indexing motor to move the wire up and down.

11. And the indexing motor is controlled to pull the wire through indexing so as to adjust the angle of the measuring head.

12. Grating scale, a section of which is described in detail below.

13. Drone, here refers to the whole drone portion.

Generally speaking, this scheme adopts unmanned aerial vehicle to carry on the measurement part, accomplishes through control screen remote operation.

Wherein the unmanned aerial vehicle is connected with the measuring part through a rotating shaft connecting wire 9;

the angle of the measuring part is adjusted to control the transposition pull wire 10 through the transposition motor 11 to drive the rotating shaft 3 to realize transposition;

control the displacement of measuring stick through measuring motor 6, grating ruler 12 fixes on the measuring stick, realizes the measurement to icing thickness, and data are connected to data connector 7 through data line 8 and transmit unmanned aerial vehicle.

The following is further specified:

1.1 unmanned aerial vehicle part

(1) Master control part

The unit mainly has the functions of realizing data processing, video image processing, alarm signal processing, control circuit and the like; the core chip adopts a Haesi HI3519V101 chip, integrates a new generation of ISP, adopts a latest H.265 video compression algorithm, simultaneously adopts an advanced low-power-consumption process and a low-power-consumption architecture design, and continuously leads to the industry level in the aspects of low code rate, high image quality and low power consumption.

Functional characteristics

a) Based on the H.264/H.265 video compression algorithm, completing the image/video acquisition function;

b) local video image storage of the TF card, wherein the single card can support 64G;

c) the low power consumption design is adopted, and the standby power consumption is 0.6W;

d) the data interaction function with a background monitoring center is completed, and the functions comprise equipment remote configuration, video image remote retrieval and the like;

(2) camera head

Adopt the camera of moonlight level, 200 ten thousand pixels H.265+ double-deck square plate module of intelligent analysis, the camera of 6 directions of the camera of installing 6 directions on the organism is respectively: six directions about left and right sides, from top to bottom for observe on the display screen that the unmanned aerial vehicle was controlled the video picture of front and back and was conveyed the control screen from time to time, supply operating personnel to observe the circumstances on every side, guarantee to measure and accomplish smoothly.

The camera functions as follows;

1/2.8' Progressive Scan CMOS is adopted to support 200 ten thousand pixels (1920 multiplied by 1080) @30fps, and the image is smooth;

the video compression algorithm of H.265+/H.265/H.264/MJPEG is supported, and the multi-level video quality configuration and the encoding complexity setting are supported;

the built-in automatic day and night double-optical-filter switching mechanism has various switching modes such as manual or automatic color-to-black switching and the like;

3D digital noise reduction function is supported;

supporting Onvif protocol and national standard GBT 28181;

the method supports iPhone, iPad and Android platforms, supports various cloud technologies, and realizes the network transparent transmission of P2P;

(3) radar detection module

The radar detection module can provide a non-contact distance sensing function of 20cm-600cm, and the distance measurement precision can reach 2 mm; the module comprises an ultrasonic sensor and a control circuit which are integrated in a transceiving mode.

The basic working principle is as follows:

1. and triggering and ranging by adopting an IO port TRIG to give a high-level signal of 10 us.

2. The module automatically sends 8 square waves of 40khz and automatically detects whether a signal returns;

3. when there is a signal return, a high level is output through the IO port ECHO, and the duration of the high level is the time from the transmission of the ultrasonic wave to the return. Test distance (high level time: speed of sound (340M/S))/2;

4. after the module is triggered to measure the distance, if the ECHO is not received (the reason is beyond the measured range or the probe is not facing the measured object), the ECHO port will automatically change to low level after 60MS, which marks the end of the measurement, whether it is successful or not.

And 5, an LED indicating lamp shows that the LED is not a power indicating lamp, and the LED is turned on after the module receives the trigger signal, and the module is in a working state at the moment.

The working schematic diagram is as follows: the radar probe is used for detecting surrounding objects, controlling safe distance, preventing collision and the like.

(4) Indexing motor

The transposition motor drives the driving wheel to rotate, so that the transmission line moves towards one direction, the wires on the left side and the right side move up and down, and the transposition of the measuring head is achieved.

(5) Communication system

The communication between the image processing unit and the system platform is realized, a 4G full-network industrial communication module is adopted, and a high-gain antenna is arranged, so that the alarm image/video information acquired in a monitoring field can be transmitted to the system platform in real time. The image processing unit and the system platform utilize the domestic existing wireless network platform as a transmission medium to carry out bidirectional data transmission. The 4G full-network communication module selected by the substation and the main station realize full-transparent data transmission, follow a TCP (Transmission control protocol) and a UDP (user Datagram protocol) protocol, and access to the internet by adopting a CMNET (China Mobile Net) or APN (Access Point name) mode.

The module is convenient, flexible and reliable to use, and has the following main functions:

the CMNET and the APN can be selected to access the network;

the terminal as a data terminal is always on line;

transparent data transmission and protocol conversion;

the automatic reconnection function of broken wires is realized, and the automatic reconnection time of the broken wires is less than 1 min;

the working environment temperature is-45 ℃ to +90 ℃;

support for a virtual data private network, VPDN;

selecting the standard to be industrial grade or above;

the data transmission rate is more than 1M;

the effective rate of successful data transmission is more than 99 percent.

Unmanned aerial vehicle plays and flies frame

1.2 measurement section

(1) Measuring rod

The part is made of insulating material, and the material can be selected from bakelite or alumina ceramics for contacting the object to be tested.

(2) Grating ruler

The grating ruler is a measuring feedback device for the position movement of an object by utilizing the optical principle of moire fringes. The grating scale is 'read' by detecting the number of the moire fringes, and then the displacement and the speed of the object are calculated according to the action of the driving circuit.

Structure of displacement sensor of first grating ruler

The displacement sensor of the grating ruler consists of two parts, namely a ruler grating and a grating reading head. The scale grating is generally fixed to the movable part of the machine tool, the grating reading head is mounted to the fixed part of the machine tool, and the indicating grating is mounted in the grating reading head. The structure diagram of the grating ruler displacement sensor is as follows:

grating detection of (II) grating ruler displacement sensor

The key part of the grating detection device is a grating reading head which comprises a light source, a convergent lens, an indication grating, a photoelectric element, an adjusting mechanism and the like. The grating reading head has a plurality of structural forms, and is divided into a direct receiving type reading head (or called a silicon photocell reading head, a mirror image type reading head, a beam splitter type reading head and a metal grating reflection type reading head according to the structural characteristics and the use occasions of the reading head.

Working principle of displacement sensor of grating ruler

When the lines on the indication grating and the lines on the scale grating form an angle to place the two grating rulers, the lines on the two grating rulers are inevitably crossed. Under the irradiation of a light source, the small area near the intersection point is overlapped due to the black lines, so that the shading area is minimum, the light shading effect is weakest, and the light accumulation effect enables the area to appear bright bands.

On the contrary, in the region far away from the intersection point, because the overlapping part of the opaque black lines of the two grating rulers becomes less and less, the area of the opaque region becomes larger gradually, namely the shading area becomes larger gradually, the shading effect becomes stronger, only less light can penetrate through the grating through the region, the dark band appears in the region, and therefore the moire fringes seen by people are formed.

(IV) Moire fringe

Taking the transmission grating as an example, when a small angle θ is formed between the lines on the indication grating and the lines on the scale grating, and the two grating scale facets are placed in parallel, the two grating scale facets are positioned on the almost vertical grating lines under the irradiation of the light source to form the light and dark stripes. Such fringes are called "moire fringes". Strictly speaking, the moire fringes are arranged in a direction perpendicular to the bisector of the included angle between the two grating lines. In moire, the distance between two bright or dark stripes, called the width of the moire, is denoted by W: w is ω/2 sin (θ/2) ω/θ.

1.3 control Screen portion

The controller adopts 12 cun liquid crystal display, can show the video picture of 6 directions, and the data display area shows unmanned aerial vehicle height, reports to the police and measured data, left handle control measurement part, right handle control unmanned aerial vehicle.

1.4 background Master station System

Data interaction with an unmanned aerial vehicle main control system is realized, machine account information construction is carried out, a platform of the wire icing thickness measuring device is managed, and meanwhile, the flight track of the device, the returned video image and the measured icing thickness data are displayed in the platform; the system is generally composed of a front-end receiver, an application server, a database server, a monitoring workstation, network switching equipment, communication equipment, a database, a main station software system and the like.

1.4.1 functional characteristics of the System

A display platform: the icing data, the pictures and the retrieval video can be visually checked;

a management platform: the method is used for displaying equipment information of the device and establishing equipment ledger information;

a database management platform: the system is responsible for storing and retrieving the collected pictures and data and providing a data security strategy;

monitoring device management system: the working condition of the monitoring device is displayed in real time, the monitoring picture is inquired, the device control function is realized, and the maintenance, the maintenance and the repair plan of the monitoring device (comprising peripheral equipment such as a sensor, a power supply and the like) are provided.

A report system: providing a function of printing daily newspapers and monthly newspapers as required by a user;

the communication management system comprises: is responsible for communicating with the front end of the communication cluster and for protocol conversion.

The power-off data protection function is realized, the recorded data can be kept for a long time and cannot be lost in 1 year;

the self-diagnosis function is provided;

the power-on and software self-recovery functions are realized;

the internal core element adopts the design standard of military products;

1.4.2 System features

(1) The system has high reliability

The power system is a unit for which a high demand is placed on the device reliability index. The system puts the reliability pointer of the system as a whole at the head of the performance pointer of the system from the whole design stage. The system software fully considers the overall reliability index of the system from the integral structure design stage to the user interface design, programming, code generation and other stages.

(2) Simple and convenient operation and use

The user operation interface of the system is a graphical interface and Chinese character operation prompts. The image/video can be visually displayed on the interface, various data can be visually and conveniently set (can be directly imported from monitoring center software), and the operation is simple and easy to learn.

(3) Easy maintenance of the system

The system adopts a plurality of processing methods in the aspect of fault tolerance and error correction, so that the maintenance workload of the system is very small, and the maintenance workload of the database is almost zero because the system comprises the automatic database maintenance function. Meanwhile, the database information is compatible with the monitoring center software.

(4) Strong confidentiality

Each set of software is provided with a softdog, and the serial number of the softdog is unique, so that the software is prevented from being stolen.

2. Design aspects of circuit and electromagnetic compatibility

(1) Hardware needs to adopt components above industrial level; the design of a protection circuit by measures such as lightning protection, seepage prevention, interference prevention and the like is required for each input/output interface;

(2) the type selection of the sensor must meet the working requirement of an electromagnetic field, and the sensor can be selected after the detection of a high-current and high-voltage magnetic field environment;

(3) EMC protection is enhanced on a radio frequency circuit, a power supply input end, an internal control bus and the like;

(4) attention is paid to the design of a circuit board mounting structure, so that warping is avoided;

3. principle of operation of the device

(1) The operating personnel passes through the operation control screen, and control unmanned aerial vehicle drives the measurement part, reachs the measuring position.

(2) Observe the circumstances around through the camera, the camera of 6 directions of the camera of installing 6 directions on the organism is respectively: the device comprises a control screen, a display screen;

(3) the safety distance is detected through a radar, the distance between the left side and the right side of the unmanned aerial vehicle can be detected, so that the safety distance of the unmanned aerial vehicle is ensured and the collision of the unmanned aerial vehicle is prevented, the control panel can set a radar alarm distance, when the distance in a certain direction is smaller than a set distance, an alarm is sent in the corresponding direction on the operation panel, and an operation button in the direction is limited;

(4) controlling the measuring motor to measure the object by controlling the indexing motor to select the angle to be measured;

(5) unmanned aerial vehicle can be through the operation, to the size of two angles of icing wire measurement, A, B, the obtaining icing thickness that can be more accurate of last picture respectively, for judging the icing thickness provides accurate data, and measuring range is: 0 to 185 mm.

(6) And the measured data is sent to a control screen or a background master station system through a communication system.

In summary, the transmission line conductor icing thickness measuring device of the embodiment has the following functions:

(1) the data return function is provided: the measured data values can be stored in the server;

(2) the image return function is provided: the picture of the conductor ice can be transmitted back to the server;

(3) the remote operation control function is provided: the device can be remotely controlled to work through a remote controller;

(4) the insulating property is strong, and the function of non-conducting is realized;

(5) has anti-electromagnetic interference capability.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides a transmission line wire icing thickness measurement device, includes measuring module, its characterized in that:

the unmanned aerial vehicle system further comprises an unmanned aerial vehicle part (13), a control screen and a server;

the drone portion (13) comprises a drone body;

the unmanned aerial vehicle part (13) also comprises a main control module, and a camera (1), a radar detection module (4), a transposition motor (11) and a communication system which are respectively in communication connection with the main control module;

the main control module is respectively communicated with the control screen and the server through a communication system;

the camera (1) is used for observing the surrounding situation of the unmanned aerial vehicle and the measurement situation of the observation measuring head;

the indexing motor to control a measurement angle;

the radar detection module guarantees the safety distance of the unmanned aerial vehicle;

the control screen is communicated with a main control module of the unmanned aerial vehicle part (13), and comprises a display screen and an operation keyboard;

wherein the content of the first and second substances,

the unmanned aerial vehicle part (13) is used for carrying a measuring module, remotely controlling the unmanned aerial vehicle to fly through the control screen and controlling the indexing motor to operate the measuring module, the measured data is displayed on the control screen, and a video picture acquired by the camera is displayed on the control screen and is recorded and stored in real time; meanwhile, the flying track of the unmanned aerial vehicle, the measured data and the video pictures collected by the camera can be uploaded to a server for display or storage.

2. The transmission line wire icing thickness measuring device of claim 1, characterized in that:

the measuring module comprises a measuring rod (2) and a grating ruler (12), the grating ruler (12) is fixed on the measuring rod (2), and the measuring rod (2) is in an insulated rod shape;

the grating ruler (12) is in communication connection with the main control module.

3. The transmission line wire icing thickness measuring device of claim 1, characterized in that: the measuring module further comprises a measuring motor (6), the measuring motor (6) is fixedly connected with the indexing motor (11), and the measuring rod (2) is fixed on the measuring motor (6);

the measuring motor (6) is fixed on the unmanned aerial vehicle body;

the measuring motor (6) and the indexing motor (11) are respectively in communication connection with the main control module.

4. The transmission line wire icing thickness measuring device of claim 3, characterized in that: the measuring module further comprises a rotating shaft (3), and the measuring motor (6) is fixedly connected with the indexing motor (11) through the rotating shaft (3).

5. The transmission line wire icing thickness measuring device of claim 1, characterized in that: still include pivot connecting wire (9), pivot connecting wire (9) are used for connecting measurement module on the unmanned aerial vehicle body.

6. The transmission line wire icing thickness measuring device of claim 5, characterized in that: the rotating shaft connecting wire (9) is a wire or a nylon wire with a flexible wire made of an insulating material.

7. The transmission line wire icing thickness measuring device of claim 4, characterized in that: the measuring module is characterized by further comprising an indexing pull wire (10), wherein the indexing pull wire (10) is used for adjusting a connecting wire of an angle of the measuring module, one end of the indexing pull wire (10) is connected with the measuring motor (6), and the other end of the indexing pull wire (10) is connected with the indexing motor (11).

8. The transmission line wire icing thickness measuring device of claim 7, characterized in that: the indexing stay wire (10) is a wire or a nylon wire with a flexible wire made of an insulating material.

9. The transmission line wire icing thickness measuring device of claim 2, characterized in that: the measuring rod (2) is made of bakelite or alumina ceramic.

10. The transmission line wire icing thickness measuring device of claim 1, characterized in that: install camera (1) of 6 directions on the unmanned body, the camera of 6 directions is respectively: and the left, right, front, back, upper and lower directions are used for observing that the video pictures of the unmanned aerial vehicle, the upper, lower, left, right, front and back are transmitted to the display screen of the control screen at any time.

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