JP6065883B2 - Vine plant detector - Google Patents

Description

  The present invention relates to a vine plant detection apparatus that detects vine plants entangled with branch lines of electric wires.

  Conventionally, in a utility pole that is erected in a place where vines such as kuzu are growing, the vine is often wound around a branch line that supports the utility pole. If this vine plant rises while tangling to a branch line and reaches a high-voltage distribution line, there is a risk of causing a ground fault or hindering overhead work. For this reason, conventionally, a vine plant has been prevented from reaching the utility pole by attaching an anti-winding device to the branch line.

  As this type of conventional technique, there is a technique described in Patent Document 1. According to Patent Document 1, it is a roll-up preventing device such as a scissor that is mounted with a branch line disposed on a central axis, and includes a short cylindrical peripheral wall portion and an end portion on one side in the axial direction of the peripheral wall portion. A roll-up preventing device such as a bag is disclosed that includes a bottom portion to be closed and a flange portion protruding outward from the other end portion in the axial direction of the peripheral wall portion and extending to the entire circumference.

JP 2003-314084 A

  By attaching the anti-roll-up device as described in Patent Document 1 to the branch line, it is possible to prevent the vine plant from rising while being entangled with the branch line. However, if an operator leaves the vines entangled in the branch line and does not cut grass around the utility pole, the vines will eventually get over the roll-up prevention device and will again entangle with the branch line and rise up the branch line. There is a fear. Therefore, it is conceivable that the worker confirms the state of the branch line by periodically patrols the utility pole. However, in that case, there is a problem that the branch line that is not entangled with vines is also inspected, and is not efficient.

  About such a problem, by providing a detection device to detect vines on the branch line, and transmitting that the detection device has detected vines to the power supply company via a communication network, It is possible to save labor for inspection of workers. However, it is desirable that the detection device has a structure that can reliably detect a vine plant that has been tangled on a branch line and that does not operate due to factors other than the vine plant.

  The present invention solves such problems and provides a vine plant detection device capable of reliably detecting a vine plant rising while tangling to a branch line and capable of notifying an operator or the like. Objective.

  In order to achieve the above object, the present invention has the following configuration.

  (1) A cylindrical case body that has one end fixed to a power pole and the other end fixed to the ground and is attached to an obliquely extending branch line; a bendable optical fiber provided inside the case body; A light emitting unit that inputs light to one end of the optical fiber, a light receiving unit that receives and outputs light output from the other end of the optical fiber, and an output of the light receiving unit is lower than a preset value. A detection unit that outputs a detection signal when it becomes, and a communication unit that adds information for specifying the power pole to the detection signal output from the detection unit and externally outputs the detection unit, A vine plant detecting apparatus having an opening at one end, the opening being directed to the ground side when the case body is attached to the branch line.

  According to (1), the central part of the optical fiber in the case body is bent as the vine plant rises while tangling to the branch line and enters the case body. When the optical fiber is bent, the amount of light received by the light receiving unit is reduced, so that the electrical output from the light receiving unit is reduced. And a detection part outputs a detection signal when the electrical output of a light-receiving part becomes lower than the preset value, and adds the information for a communication part to identify an electric pole, and outputs this detection signal outside. By receiving the information transmitted from the communication department, the power supply company can grasp the power pole corresponding to the branch line where the vines are tangled on the power supply company side, such as the removal of vines Measures can be taken immediately.

  (2) The vine plant detecting device according to (1), wherein the case body has an enlarged-diameter portion that enlarges the opening at the end portion.

  According to (2), it becomes possible to attract the vine plants that have risen while tangling to the branch line into the case body.

  (3) The vine plant detecting device according to (1) or (2), wherein the case body is configured by a member having translucency.

  According to (3), when the inside of the case body is dark, there is a risk that vines will be prevented from entering the case body. However, since the case body has translucency, the inside of the case body becomes bright. Therefore, vines will enter the case.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the vine plant detection apparatus which can alert | report reliably that the vine plant has climbed up while being entangled with the branch line.

It is explanatory drawing which shows the use condition of the vine plant detection apparatus 1 in one Embodiment of this invention. It is a perspective view which shows the external appearance of the vine plant detection apparatus. It is a front view which shows the internal structure of the vine plant detection apparatus. 2 is a front view showing a configuration of a lock unit 30. FIG. 4 is an explanatory diagram showing a schematic configuration of a detection unit 50. FIG. It is a figure which shows the state which the vine plant invaded in the inside of the vine plant detection apparatus 1. FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an explanatory diagram illustrating a usage state of a vine plant detection apparatus 1 according to an embodiment of the present invention. As shown in FIG. 1, the vine plant detection device 1 is installed on a branch line 210 provided to support the utility pole 200, and a vine plant such as a cocoon or a kuzu is tangled around the branch line 210 and rises. In addition, the vines are detected.

  FIG. 2 is a perspective view showing the external appearance of the vine plant detection apparatus 1, and FIG. 3 is a front view showing the internal configuration of the vine plant detection apparatus 1. The vine plant detection apparatus 1 includes a case body 10, an optical fiber 20, a lock unit 30, and a detection unit 50.

[Case body structure]
The case body 10 accommodates an optical fiber 20 used for detection of vines, and includes a cylindrical portion 12, an enlarged diameter portion 14, and a storage portion 16. The case body 10 is configured by a member having translucency. The cylindrical portion 12 has a bottomed cylindrical shape, one end is closed by a disc-shaped bottom plate 12a, and an opening 13 is formed at the other end. A hole 12b for passing the branch line 210 is formed in the center of the bottom plate 12a.

The enlarged diameter portion 14 is formed in a truncated conical cylindrical shape, and the diameter of the opening 13 of the cylindrical portion 12 is increased.
The accommodating part 16 is formed so that a part of the cylindrical part 12 protrudes outside, and a space for accommodating the detection unit 50 is formed inside. The storage portion 16 is formed near the opening 13 in the cylindrical portion 12.

Next, a detailed configuration of the case body 10 will be described with reference to FIG.
The case body 10 includes a pair of semi-cylindrical members 102 and 104 and a hinge portion 106. The semi-cylindrical member 102 includes a semi-cylindrical portion 102a, a plate portion 102b formed so as to cover one end of the semi-cylindrical portion 102a, and a half formed so as to spread obliquely from the other end of the semi-cylindrical portion 102a. An enlarged diameter portion 102c. The plate portion 102b has a semicircular shape, and a semicircular concave portion is formed at the center. The semi-expanded portion 102c has a shape obtained by dividing a hollow truncated cone into two along the axial direction.

  Similarly to the semi-cylindrical member 102, the semi-cylindrical member 104 also obliquely extends from the semi-cylindrical portion 104a, a plate portion 104b formed so as to cover one end of the semi-cylindrical portion 104a, and the other end of the semi-cylindrical portion 104a. And a semi-expanded portion 104c formed so as to spread. The plate portion 104b has a semicircular shape, and a semicircular concave portion is formed at the center. The semi-expanded portion 104c has a shape obtained by dividing a hollow truncated cone into two along the axial direction.

  The hinge 106 connects the semi-cylindrical member 102 and the semi-cylindrical member 104 so as to be freely opened and closed. The case body 10 has a configuration in which one long side edge of the semi-cylindrical member 102 and one long side edge of the semi-cylindrical member 104 are connected by a hinge portion 106. For this reason, the case body 10 can be freely opened and closed.

  Further, the end portion 102d on one long side of the semi-expanded portion 102c is formed to be bendable. Similarly, the end 104d on one long side of the semi-expanded portion 104c is also formed to be bendable. In addition, the end portion 102d of the semi-expanded portion 102c formed to be foldable and the end portion 104d of the semi-expanded portion 104c are connected to each other so as to be openable and closable by an adhesive tape, for example. Thus, when the semi-cylindrical member 102 and the semi-cylindrical member 104 are opened, the end portions 102d, 104d are folded, and when the semi-cylindrical member 102 and the semi-cylindrical member 104 are closed, the end portions 102d, 104d is opened.

  The case body 10 is assembled by closing the semi-cylindrical member 102 and the semi-cylindrical member 104 and connecting the two. At this time, the bottom plate 12a and the hole 12b are formed by a combination of the plate portion 102b and the plate portion 104b on one end side. Further, on the other end side, the enlarged diameter portion 14 is formed by a combination of the semi enlarged diameter portion 102c and the semi enlarged diameter portion 104c.

  Further, as shown in FIG. 2, the semi-cylindrical member 102 further includes a protruding portion 102e on the other long side. The protruding portion 102e includes a concave storage space surrounded by a part of the semi-cylindrical portion 102a and the outer wall of the protruding portion 102e. Similarly to the semi-cylindrical member 102, the semi-cylindrical member 104 further includes a protrusion 104e on the other long side. The protruding portion 104e includes a concave storage space surrounded by a part of the semi-cylindrical portion 104a and the outer wall of the protruding portion 104e.

  Two cutouts 102f are formed on the other long side of the semi-cylindrical portion 102a inside the protruding portion 102e. Similarly, two cutouts 104f are formed on the other long side of the semi-cylindrical portion 104a. Although details will be described later, both ends of the optical fiber 20 are inserted into the notches 102f and 104f.

  Then, by combining the semi-cylindrical member 102 and the semi-cylindrical member 104, the protruding portion 102e and the protruding portion 104e are integrated, and the storage portion 16 is formed. A closed space is formed inside the storage portion 16 by combining the storage spaces of the protruding portion 102e and the protruding portion 104e.

  Three ribs 108 and three ribs 109 are erected in the semi-cylindrical member 102. The three ribs 108 are disposed at one end of the semi-cylindrical portion 102a with a certain interval in the axial direction. The three ribs 109 are disposed at the other end of the semi-cylindrical portion 102a with a certain interval in the axial direction. The three ribs 108 and the three ribs 109 are parallel to each other. A recess 108 a is formed at the center of the tip of the three ribs 108. A concave portion 109 a is formed at the center of the tip portions of the three ribs 109. The three concave portions 108a and the three concave portions 109a have the same shape, and when the semi-cylindrical member 102 is axially arranged, the three concave portions 108a and the three concave portions 109a are respectively coincident with each other.

  Inside the semi-cylindrical member 104, three ribs 110 and three ribs 111 are erected. The three ribs 110 are disposed at one end of the semi-cylindrical portion 104a with a certain interval in the axial direction. The three ribs 111 are disposed at one end of the semi-cylindrical portion 104a with a certain interval in the axial direction. The three ribs 110 and the three ribs 111 are parallel to each other. A recess 110 a is formed at the center of the tip of the three ribs 110. A recess 111 a is formed at the center of the tip of the three ribs 111. The three concave portions 110a and the three concave portions 111a have the same shape, and when the semi-cylindrical member 104 is axially arranged, the three concave portions 110a and the three concave portions 111a are respectively coincident with each other.

  Then, by combining the semi-cylindrical member 102 and the semi-cylindrical member 104, a hole formed by combining the recesses 108a and 109a and the recesses 110a and 111a is formed. These holes and holes 12 b are located on the central axis of the cylindrical part 12. Further, when the opening 13 is viewed in the axial direction, both side portions of the combined three ribs 110 and three ribs 111 are open, and the vine plant can enter the inside of the case body 10 from this open portion. is there.

  Further, a convex portion 120 is formed in the vicinity of the three ribs 108 inside the semi-cylindrical member 102, and the lock portion 30 is fixed to the tip surface of the convex portion 120. In addition, the convex portion 120 is formed with a cut and raised portion (not shown) for locking the optical fiber 20.

[Structure of lock part]
FIG. 4 is a front view showing the configuration of the lock unit 30. As shown in FIG. 4, the lock unit 30 includes a pair of rotating members 32 and 34, rotating shafts 36 and 38, and a base plate 40. The lock unit 30 restricts the movement of the vine plant detection device to the ground side and allows the movement to the utility pole 200 side in a state where the vine plant detection device 1 is mounted on the branch line 210.

  The rotation member 32 includes an eccentric body 32a and a sector gear 32b corresponding to a rotation transmission member. The eccentric body 32a has a base end formed in a columnar shape, and a through hole (not shown) through which the rotation shaft 36 is inserted is formed at the center of the base end 32c of the eccentric body 32a. Further, a protruding portion 32 d is formed on a part of the base end portion 32 c so as to protrude in the direction perpendicular to the rotation shaft 36. The protrusion 32d is bent and protrudes so as to deviate from the direction perpendicular to the rotation shaft 36. In other words, the eccentric body 32a has a substantially slender ball shape.

  The sector gear 32b is a fan-shaped plate-like gear fixed to the surface of the rotating member 32 facing the base plate 40. The sector gear 32b has teeth formed in a sectoral arc portion, and a through hole is formed in the center of the sector shape. The sector gear 32b is fixed to the rotating member 32 so that the through holes coincide with the eccentric body 32a.

  The rotating member 34 includes an eccentric body 34a and a sector gear 34b. The rotating member 34 has a shape obtained by inverting the rotating member 32 so as to be reflected in a mirror, and the eccentric body 34a and the sector gear 34b have a shape obtained by inverting the eccentric body 32a and the sector gear 32b.

  The rotation shaft 36 is a member that is inserted through a through hole (not shown) formed in the base end portion 32 c of the rotation member 32 and pivotally supports the rotation member 32. The rotation shaft 38 is a member that is inserted into a through hole (not shown) formed in the base end portion 34 c of the rotation member 34 and pivotally supports the rotation member 32. The base plate 40 is a plate-like member having a substantially home base shape.

  The rotating members 32 and 34 are installed on the plate surface of the base plate 40 by rotating shafts 36 and 38. The rotation member 32 and the rotation member 34 are installed so as to sandwich the virtual bisector of the base plate 40. The eccentric body 32a, the eccentric body 34a, the sector gear 32b, and the sector gear 34b are axisymmetric with respect to the virtual bisector of the base plate 40, and the sector gear 32b and the sector gear 34b are virtual of the base plate 40. Engage on the bisector. For this reason, the rotation member 32 and the rotation member 34 are interlocked. That is, for example, when the rotation member 32 is rotated, the operation is transmitted to the rotation member 34 via the sector gear 32 b and the sector gear 34 b, and the rotation member 34 rotates in the opposite direction to the rotation member 32. To do. For this reason, the tip of the protrusion 32d of the eccentric body 32a and the tip of the protrusion 34d of the eccentric body 34a come into contact with or separate from each other by the rotation of the rotation members 32 and 34.

  Further, when the leading end of the protruding portion of the rotating member 32 and the leading end of the protruding portion of the rotating member 34 abut on the virtual bisector of the base plate 40, this abutting position is defined by two rotating shafts. It is set at a position displaced toward the rib 109 (see FIG. 3) with respect to the intersection of the line connecting 36 and 38 and the virtual bisector of the base plate 40. When the semi-cylindrical member 102 and the semi-cylindrical member 104 are combined, the contact position between the tip of the protruding portion of the rotating member 32 and the tip of the protruding portion of the rotating member 34 is the central axis of the cylindrical portion 12. Located on the top.

  The rotating member 32 is rotated by a spring member (not shown) in a direction in which the tip of the protruding portion 32d of the eccentric body 32a and the tip of the protruding portion 32d of the eccentric body 34a approach the virtual bisector of the base plate 40. It is energized to do. For this reason, it maintains with the front-end | tip of the protrusion part 32d, and the front-end | tip of the protrusion part 34d contact | abutted.

  In a state where the lock part 30 is attached to the branch line 210, that is, in a state where the vine plant detection device 1 is attached to the branch line 210, the branch line 210 is sandwiched between the tip of the protruding part 32d and the tip of the protruding part 34d. Maintained in a state.

  When the worker moves the case body 10 (vine plant detection device 1) above the branch line 210, the tip portions of the protrusions 32d and 34d slide along the branch line 210, so that the protrusion 32d. , 34d rotate in a direction away from the branch line 210. As a result, the tips of the protrusions 32d and 34d move downward to increase the width between the tips of the protrusions 32d and 34d, and thus the case body 10 is allowed to move above the branch line 210.

  Further, when the case body 10 is moved below the branch line 210, the tip ends of the protrusions 32 d and 34 d slide from the direction against the movement of the branch line 210, so that the tip ends of the protrusions 32 d and 34 d become the branch line 210. It turns in the direction approaching. As a result, the tips of the protrusions 32d and 34d move upward and the width between the tips of the protrusions 32d and 34d becomes narrow, so that the movement of the case body 10 below the branch line 210 is restricted. For this reason, when the case body 10 is positioned at a predetermined position of the branch line 210, the case body 10 does not fall below that position.

[Optical fiber arrangement]
Further, in FIG. 2, the optical fiber 20 has a length enough to form a figure 8 inside the case body 10. Both end portions of the optical fiber 20 are fitted into holes formed by combinations of the notches 102f and 102f of the semi-cylindrical portion 102a and the notches 104f and 104f of the semi-cylindrical portion 104a. A central portion of the optical fiber 20 is disposed inside the cylindrical portion 12.

[Configuration of detection unit]
The detection unit 50 is formed by mounting various components and circuits on a substrate (not shown), and this substrate is installed in the protruding portion 102 e of the semi-cylindrical member 102.
FIG. 5 is an explanatory diagram showing a schematic configuration of the detection unit 50. The detection unit 50 includes a light emitting unit 52, a light receiving unit 54, a detection unit 56, a communication unit 58, and a power supply unit 60.

  The light emitting unit 52 is made of, for example, an LED, and is installed inside the protruding portion 102e so as to face one end surface of the optical fiber 20. The light receiving portion 54 is made of a photoelectric conversion element, and is installed inside the protruding portion 102 e so as to face the other end surface of the optical fiber 20. Light from the light emitting unit 52 is sent to the light receiving unit 54 through the optical fiber 20. The light receiving unit 54 receives light output from the other end face of the optical fiber 20 and outputs a signal of electrical energy corresponding to the amount of received light.

  The detection unit 56 monitors the output of the light receiving unit 54, and generates a detection signal when the output falls below a predetermined value. The communication part 58 adds the information for specifying the utility pole 200 to a detection signal, and outputs it outside.

  The power supply unit 60 includes, for example, a battery, and supplies power to the light emitting unit 52, the light receiving unit 54, the detection unit 56, and the communication unit 58.

  Then, by combining the semi-cylindrical member 102 and the semi-cylindrical member 104, the detection unit 50 is accommodated in the accommodating portion 16, and the optical fiber 20 is accommodated in the cylindrical portion 12.

[Installation of vine plant detector]
Next, the operation | work which mounts the vine plant detection apparatus 1 to the branch line 210 is demonstrated.
First, the worker opens the semi-cylindrical member 102 and the semi-cylindrical member 104 of the case body 10, and extracts one end of the optical fiber 20 from the notch 102f. Next, after winding around the branch line 210 at least once, one end of the optical fiber 20 is inserted into the notch 102f again. Further, the optical fiber 20 is engaged with a cut-and-raised (not shown) formed on the convex portion to which the lock portion 30 is fixed.

  Next, the rotation member 32 is rotated and maintained in a state where the ends of the projecting portions 32d and 34d are widened, and the inside of the concave portion at the center of the plate portion 102b, the three concave portions 108a, and the three concave portions 109a. The branch line 210 is placed, and the branch line 210 is positioned between the tips of the protrusions 32d and 34d.

  Next, the worker releases the maintenance of the rotating state of the rotating member 32. Thereby, the protrusions 32d and 34d abut on the branch line 210. Then, by closing the semi-cylindrical member 104 and combining the semi-cylindrical member 102 and the semi-cylindrical member 104, the vine plant detector 1 is mounted on the branch line 210.

[Operation of vine plant detector]
Next, the operation of the vine plant detection apparatus 1 will be described.
When the vine plant grown on the ground reaches the branch line 210, the vine plant extends to the utility pole 200 side along the branch line 210 while being entangled with the branch line 210. After the vine plant reaches the vine plant detection apparatus 1, the vine plant is attracted to the inside of the cylindrical portion 12 by the guide of the enlarged diameter portion 14. When the vine plant further grows, the vine plant is entangled with the branch line 210 inside the cylindrical portion 12, or the inside of the cylindrical portion 12 is filled with the vine plant. Thereby, the optical fiber 20 receives a pressure from a vine and further curves.

  If the optical fiber 20 is further bent, light loss due to bending occurs, so that the amount of light received by the light receiving unit 54 decreases. The light receiving unit 54 outputs a signal of electrical energy corresponding to the amount of received light to the detection unit 56. And the detection part 56 outputs a detection signal, when the output of the light-receiving part 54 becomes lower than the preset value. The communication unit 58 that has received the detection signal adds the information for specifying the utility pole 200 to the detection signal and outputs it externally.

  The detection signal output from the communication unit 58 is sent to the power supply company via an information network (not shown). As a specific example, when there is a consumer who has deployed a smart meter (not shown) among the consumers who are drawing power from the utility pole 200, the detection signal from the vine plant detector 1 is used as the demand. Send to home smart meter and send detection signal to electricity supplier via smart meter.

  In the power supply company, the utility pole 200 corresponding to the branch line 210 where the vine plant detection device 1 where the detection signal is generated is identified, and a worker is dispatched to the site. Then, the worker investigates the branch line 210, and when a vine is entangled, the worker removes the vine from the branch line 210.

  According to the present embodiment configured as described above, the vine plant rises while being entangled with the branch line 210 and enters the case body 10, whereby the optical fiber 20 in the case body 10 is bent. When the optical fiber 20 is bent, the amount of light received by the light receiving unit 54 is reduced, so that the output from the light receiving unit 54 due to photoelectric conversion is reduced. The detection unit 56 outputs a detection signal when the electrical output of the light receiving unit 54 is lower than a preset value, and the communication unit 58 adds information for identifying the utility pole 200 to the detection signal. Outputs externally. When the power supply company receives the information transmitted from the communication unit 58, the power supply company can grasp the utility pole 200 corresponding to the branch line 210 in which the vine is entangled. It is possible to immediately take measures such as removal.

  Moreover, according to this embodiment, by having the enlarged diameter portion 14 that expands the opening 13 at the end of the case body 10, the vine plant that has risen while being entangled with the branch line 210 is placed inside the case body 10. It becomes possible to attract.

  Moreover, according to this embodiment, since the case body 10 is comprised by the member which has translucency, the inside of the case body 10 becomes bright, and since the inside of the case body 10 is dark, a vine plant is in the case body 10 You can avoid entering.

As mentioned above, although embodiment of this invention was described, embodiment of this invention is not restricted to embodiment mentioned above. For example, according to the above-described embodiment, the cylindrical portion 12 and the storage portion 16 are configured integrally, but the cylindrical portion 12 and the storage portion 16 may be configured separately. Further, the detection unit 50 may be provided inside the cylindrical portion 12.
Moreover, according to embodiment mentioned above, although the optical fiber 20 is wound around the branch line 210, an operator may determine suitably whether it winds around the branch line 210. FIG.

  Further, the optical fiber 20 may be brought into contact with the inside of the cylindrical portion 12, and a convex portion may be formed so that the optical fiber 20 is separated from the inner wall surface of the cylindrical portion 12 and approaches the branch line 210. Thereby, the optical fiber 20 can be reliably bent by the vine plant that has entered the case body 10.

  In the embodiment described above, when the amount of light received by the light receiving unit 54 is lower than a preset value, the detection unit 56 outputs a detection signal. The amount of light received by the light receiving unit 54 at the beginning of use of the plant detection device 1 is obtained, and this received light amount is set as a reference value in a storage unit (not shown) of the detection unit 56. And the detection part 56 calculates | requires the decreasing rate of the received light quantity with respect to a reference value, and when this decreasing rate becomes lower than the preset value, you may make it output a detection signal. According to the above-described embodiment, as shown in FIG. 1, the optical fiber 20 is curved even in the initial state. However, when there are a plurality of vine plant detection devices 1, all the vine plant detection devices 1. The optical fiber 20 is not necessarily curved in the same manner. For this reason, the amount of light received by the light receiving unit 54 in the initial state may be different in each vine plant detecting device 1. Therefore, as described above, the reference value of the amount of received light is set at the beginning of use of the vine plant detecting device 1, and the detection unit 56 outputs a detection signal based on the rate of decrease in the amount of received light. However, in the case of further bending from the initial bending state, it is possible to cause the detection unit 56 to output a detection signal.

DESCRIPTION OF SYMBOLS 1 Vine plant detection apparatus 10 Case body 12 Cylindrical part 13 Opening 14 Expanding part 16 Storage part 20 Optical fiber 30 Lock part 50 Detection unit 52 Light emission part 54 Light reception part 56 Detection part 58 Communication part 60 Power supply part 200 Power pole 210 Branch line

Claims (3)

A vine plant detection device,
A cylindrical case body having one end fixed to a power pole and the other end fixed to the ground and attached to a branch line extending obliquely;
A lock portion provided inside the case body, and including a base plate, a pair of rotating members, and a pair of rotating shafts;
A bendable optical fiber that is brought into contact with a convex portion formed inside the case body and is separated from the inner wall surface of the case body and close to the branch line ;
A light emitting unit for inputting light to one end of the optical fiber;
A light receiving unit that receives light output from the other end of the optical fiber, performs photoelectric conversion, and outputs an electrical signal corresponding to the amount of received light;
A detection unit that outputs a detection signal when the output of the light receiving unit is lower than a preset value;
A communication unit that adds information for specifying the utility pole to the detection signal output from the detection unit and outputs the detection signal to the outside, and the case body has an opening at at least one end, , Directed to the ground side when the case body is attached to the branch line,
The vegetation plant detection device, wherein the lock unit restricts movement of the case body to the ground side and allows movement to the utility pole side in a state where the case body is mounted on the branch line. .   The vine plant detecting apparatus according to claim 1, wherein the case body has an enlarged-diameter portion that enlarges the opening at the end portion. The vine plant detecting apparatus according to claim 1 or 2, wherein the case body is configured by a member having translucency.

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