JP3954672B2 - Temperature management device and temperature management method using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an apparatus for managing the temperature of equipment, and in particular, connection at connection parts of electric circuits such as trolley wires and feeders arranged along a train line, and connection parts of electric circuits in general commercial power transmission equipment. The present invention relates to a temperature management device that is effective in applying defects to temperature inspection and a temperature management method using the same.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, a connection failure in a connection portion of an electric circuit such as a feeder line arranged along a train line is inspected by managing the temperature accompanying resistance heat generation. In this case, it has been proposed to use an infrared thermometer, a discoloration of the temperature indicating label, and a deformation of the shape memory alloy as the temperature measuring means.
[0003]
[Problems to be solved by the invention]
Since current flows only at the time of passing a train through a connection part of an electric circuit such as a trolley wire or feeder of a train track, the temperature drops after passing the train even if the temperature of the connection rises due to resistance heat generation. . Therefore, it is difficult to continuously measure the temperature at the connection portions of the plurality of electric circuits arranged along the train track using the infrared thermometer as the train passes. When attaching a temperature-indicating label with irreversible discoloration that changes color at a given temperature and visually checking the discoloration, the connection is often located at a high location. It is difficult to discriminate, and if it is a high place inspection work using a ladder, it will involve a lot of work, labor and danger. Even when using the method of visually inspecting the deformation of the shape memory alloy, there are the same problems as the temperature indication label, and the original shape is restored due to a change in temperature. There is a problem of being restricted.
Accordingly, the present invention is intended to provide a temperature management device capable of accurately detecting a discoloration of a temperature discoloration member such as a temperature label accurately and safely without using human hands, and a temperature management method using the same. is there.
[0004]
[Means for Solving the Problems]
In the present invention, in a train track that includes a trolley wire T and a feeder wire W installed along the trolley wire T, a plurality of electric circuits connected in a predetermined order along the trolley wire T are connected. The temperature change color changing member 1 attached to the portion and the temperature change color change member 1 are monitored, and when the temperature of the electric circuit connecting portion reaches a predetermined value due to resistance heat generation, a set color indicated by the temperature change color change member 1 is detected and a predetermined color is detected. A temperature management device is configured by including a color sensor 6 that transmits an electrical signal. The color sensor 6 includes a color camera head 7 that captures the temperature change color member 1 and a controller 8 that detects a set color of the temperature change color member 1 captured by the camera head 7 and sends a predetermined electrical signal. . The color camera head 7 is installed on the self-propelled aircraft 2 that moves on the feeder W. The color camera head 7 sequentially captures the temperature-indicating color changing member 1 attached to the connection portions of each electric circuit, sends out an electric signal from the controller 8, and stores it in a storage device corresponding to the connection portion of each electric circuit. Therefore, it is possible to accurately, quickly and safely inspect the connection failure in the connection portions T1, T2,... Tn of the electric circuit such as the trolley wire T by mechanical monitoring of the temperature change accompanying the resistance heat generation. It is effective for inspection of train tracks that are generally performed in a short time at night.
[0005]
The present invention also includes a step of affixing a temperature label 1 to a connection part of No. 1 to No. N electric circuits arranged along a train line from a start point to an end point of a predetermined section of the train line, and a controller of the temperature management device Step 8 for storing color information to be detected, and connection from No. 1 to No. n with the color camera head 7 while moving from the start point to the end point of the predetermined section by the self-propelled aircraft 2 moving on the feeder W Each of the temperature indication labels 1 is sequentially captured, and the color information of each temperature indication label 1 captured by the color camera head 7 is received by the controller 8 and compared with the color information to be detected stored in advance for each temperature indication label 1. The electric circuit on the train line includes a step of transmitting an electric signal as a comparison result to the storage device 9 and a step of storing the electric signal transmitted from the controller 8 in the storage device 9 corresponding to each temperature indicating label 1. To provide a temperature control method of the connection part.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic plan view of a temperature management device according to the present invention, FIG. 2 is a schematic side view of the temperature management device according to the present invention, and FIG. 3 is a flowchart of the temperature management method according to the present invention.
[0015]
In this embodiment, as shown in FIGS. 1 and 2, in order to detect a connection failure of the connection portions T1, T2,... Tn of the plurality of electric circuits arranged on the trolley line T, these connections are detected. The parts T1, T2,... Tn are temperature management members. A temperature indicating label 1 is affixed to the side surfaces of the connecting portions T1, T2,... Tn. The temperature label 1 is irreversibly discolored according to the temperatures of the connecting portions T1, T2,... Tn. In place of the temperature label 1, a temperature indicating paint which is a temperature indicating color changing member having similar properties can be applied. In parallel to the trolley line T, for example, a feeder W and a suspension line M are stretched on the train line. Overhead electric wires including these are collectively referred to as train lines. Also on the feeder W and the suspension wire M, the connection part C with the lead wire L or its own straight connection part (not shown) is provided. A similar temperature indicating label 1 is also affixed to these connection portions C. In the figure, the self-propelled aircraft 2 is movably mounted on the feeder line W. The self-propelled aircraft 2 is provided with a roller 4 that rolls on the feeder wire W at the front and rear portions on the machine body 3, and this roller 4 is driven by a motor 5.
[0016]
A color sensor 6 is mounted on the body 3. The color sensor 6 includes a color camera head 7 and a controller 8 connected thereto. The color camera head 7 is fixed to the lower part of the airframe 3 and is directed to the lateral trolley line T. The controller 8 is fixed to the machine body 3 and detects a set color of the temperature indicating label 1 which has changed color and sends a predetermined electric signal. The controller 8 includes a storage device 9 that stores electrical signals. An external storage device such as an IC memory card can also be used as the storage device 9. The color sensor 6 continuously images the trolley line T while moving by the self-propelled aircraft 2, thereby sequentially monitoring the connection portions T1, T2,... Tn, and the connection portion at a predetermined abnormal temperature. The controller 8 detects the set color indicated by the temperature indicating label 1 of T1, T2,... Tn, converts it into a predetermined electrical signal, and stores it in the storage device 9 as color information.
[0017]
Referring to FIG. 3, in the temperature management method of the present invention, in step S1, the temperature label 1 is displayed on each of the connecting portions T1, T2,... Tn on the trolley line T from the start point to the end point of the predetermined section of the trolley line T. Including pasting. In step S2, a color corresponding to the temperature to be detected is set in the controller 8 of the color sensor 6. In step S3, the trolley line T is photographed by the color sensor 6 while moving the self-propelled aircraft 2 along the trolley line T from the start point to the end point of the predetermined section on the electric wire W, and the connecting portion T1 on the trolley line T is captured. , T2,... Tn, image information including the temperature indicating label 1 is captured. In step S4, the controller 8 of the color sensor 6 compares the color of each temperature label 1 in the image with a preset color to be detected, and sends the comparison result as an electric signal for each temperature label in steps S5 and S6. To do. In step 7, the electrical signal sent from the controller 8 of the color sensor 6 is stored in the storage device 9 corresponding to each temperature label 1.
The temperature information of the connection portion of the trolley wire T stored in the storage device through such processing can be used for detecting a connection failure of the connection portions T1, T2,.
[0018]
In addition, by measuring the moving distance of the self-propelled aircraft 2, it is possible to ensure the location of the poor connection, and the self-propelled aircraft 2 is connected to other electric lines such as the feeder wire W and the suspension line M. In this case, the structure of the self-propelled aircraft 2 can be changed as appropriate so as not to interfere with the support or the like.
In this embodiment, temperature management is performed to detect a connection failure on the trolley line T. However, the present invention is not limited to this, and the orientation of the color camera head 7 is changed, for example. The temperature label 1 on the connecting part C of the other electric wire such as the electric wire W and the suspension line M can be photographed and the same temperature management can be performed, and the temperature-controlled member is, for example, a circuit breaker in a substation In the case of such a fixed facility, the color sensor 6 may be installed so that the temperature indicating label 1 attached to the temperature management member is always fixedly photographed at a fixed position.
Furthermore, when the set color of the temperature label 1 is detected, a corresponding operation such as immediately issuing an alarm can be performed.
As other embodiment of this invention, in order to detect the connection failure of the connection part of the some electric circuit on a general power transmission line, these connection parts can be used as a temperature management member. In this case, a self-propelled aircraft can be mounted on another parallel transmission line.
[0019]
【The invention's effect】
As described above, in the present invention, the temperature of the temperature-controlled member is discolored from the temperature discoloring member such as the temperature indicating label 1 so that it is safe from the ground without manpower and labor and without being limited by the inspection time. In particular, it has the effect of being optimal for detecting a connection failure in a connection portion of an electric circuit such as a trolley wire or feeder of a train line.
[Brief description of the drawings]
FIG. 1 is a schematic plan view of a temperature management device according to the present invention.
FIG. 2 is a schematic side view of a temperature management device.
FIG. 3 is a flowchart of a temperature management method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Temperature label 2 Self-propelled machine 6 Color sensor 7 Color camera head 8 Controller 9 Memory | storage device T Trolley wire T1, T2, ... Tn Connection part W Feeding wire

Claims (4)

In a train track comprising a trolley wire and a feeder line installed along the trolley wire,
A temperature discoloration member attached to a connection portion of a plurality of electric circuits fixed in a predetermined order along the trolley wire, and the temperature discoloration member are monitored, and the temperature of the electric circuit connection portion reaches a predetermined value by resistance heating. A color sensor that detects a set color indicated by the temperature change color member and transmits a predetermined electrical signal when the temperature change color is reached, and the color sensor includes a color camera head for photographing the temperature change color member, and the camera head A controller for detecting a set color of the temperature-indicating color changing member and transmitting a predetermined electric signal;
The color camera head is installed on a self-propelled machine that moves on the feeder, is configured to sequentially photograph the temperature change color changing member attached to the connection portion of each electric circuit, and an electrical signal sent from the controller A temperature management device for an electric circuit connection portion in a train line, which is stored in a storage device corresponding to the connection portion of each electric circuit.   The temperature management device for an electric circuit connection part in a train line according to claim 1, wherein the temperature discoloration member is a temperature label affixed to a temperature management member.   The temperature management device for an electric circuit connection portion in a train line according to claim 1, wherein the temperature change color changing member is a temperature indicating paint applied to a temperature management member. A temperature is indicated at each of the connecting portions of the No. 1 to No. n electric circuits arranged along the train line from the start point to the end point of the predetermined section of the train line including the trolley line and the feeder line installed along the trolley line. A step of applying a label, and a controller of a color sensor that detects a set color indicated by the temperature indicating label through a color camera head when a temperature of the electric circuit connection portion reaches a predetermined value due to resistance heat generation , and sends a predetermined electric signal , the connection of the step of storing the color information to be detected, from the starting point of the predetermined section with self-propelled machine which moves over the-out wire while moving to the end point, to the n-th from the 1st in the color camera head A step of sequentially photographing the temperature indication labels of the unit, and the color information of each temperature label captured by the color camera head is received by the controller and compared with the color information to be detected stored in advance. In a train line, comprising: a step of transmitting an electric signal as a comparison result for each temperature indicating label; and a step of storing the electric signal transmitted from the controller in a storage device corresponding to each temperature indicating label. Temperature control method for electrical circuit connections.

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