JP3530259B2 - Light source unit for trolley wire monitoring device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION A trolley wire is displaced by running of a train, a change in temperature, and the like. The present invention relates to a monitoring device capable of constantly detecting the displacement direction and the displacement amount.
For example, in a crossover device that branches a side line from a main line, whether the position of the side line with respect to the main line at the branch point is appropriate or not is determined.
Need to detect. An example of a crossover device will be described below. 2. Description of the Related Art Generally, a side line at a branch point is stretched about 200 m / m laterally and about 70 m / m high by a main line. If the pantograph of the train entering from the main line enters the upper side of the side line, a so-called interrupt accident occurs, destroying both the train line and the pantograph. The step of 70m / m height is to avoid this. [0003] Conversely, a case where the user enters the main line from the side line will be additionally described. The tip of the curved portion at both ends of the pantograph is about 30 cm below the central flat surface, and entry is performed at a low speed, so the main line first engages the curved surface of the pantograph, and this engagement point moves to the upper flat surface as the vehicle advances. And move smoothly. [0004] Conventionally, cross metal fittings have been used to provide an interval of 70 m / m in the vertical direction between the main line side lines. Metal fittings with both ends attached to the main line, with the side line passing above and crossing the main line in a non-contact manner. In this case, for the pantograph traveling on the lower main line, the metal support point becomes a hard point and causes spark generation. The Shinkansen dislikes this and separates the side line from the main line and supports it alone at the appropriate height. It is a so-called no-crossing type. In this case, it must be constantly monitored whether an appropriate distance is maintained between the two lines. Conventionally, a reflector attached to a trolley wire is irradiated by a mercury lamp provided near a CCD camera, and the CCD camera receives the reflected light and performs image processing by a computer. In the daytime, sunlight is received, so measurement is limited to nighttime measurement only. Continuous measurement throughout the day and night has been desired. [0005] A lightweight light source unit that can be attached to a trolley wire is provided at a required measurement point of a branch line, and an infrared light emitting diode is used as a light source. The infrared light emitting diode is housed in a bowl-shaped case and faces outward through a plurality of holes formed in the bottom surface. The bowl-shaped case is fixed to the tip of the support rod, and attached to the trolley wire with the other end. The conductor is connected to an infrared light emitting diode inside the bowl-shaped case. Infrared light emitting diodes have excellent seismic resistance, low operating current, and can be recognized as a light source even in a backlight environment caused by daylight sunlight. Therefore, it is effective for continuous measurement throughout the day and night and especially for measurement sources from remote locations. The power source, which is a heavy object such as a battery, is supported by a structure beside the track, connected to the light source unit by a conductor above the trolley wire, and kept constantly energized. The CCD camera is fixed to the structure on the light beam of the light source unit.
This camera has a plate surface including a plurality of light receiving elements in a horizontal position at a focal position. The transmitter attached to the camera is connected to a computer in the monitoring room. The computer always detects the light projection position to the light receiving element in the camera, stores it as data, and emits a warning by light or sound when the position deviates from the standard frame as compared with the standard position. A light source unit U comprises a pair of ear pieces 1 and 2, a support rod 3, a case 4 and an infrared light emitting diode 5. The ear pieces 1 and 2 are provided with abutting edges 1b and 2b at the upper end and teeth 1a and 2a at the lower end capable of holding the trolley wire T, respectively. One ear 1
The cylinder 1a is fixed to the top, and is press-fitted with the angular direction of the inserted support rod 3 determined. Case 4 is a bowl-shaped body with a lid 4a
The hole is drilled in the center of the bottom of the bowl,
The lid is fixed to the upper part of the support rod 3. A plurality of infrared light emitting diodes 5 are housed in the case, and their heads face a plurality of bowl-shaped windows. [0007] The battery 6 of the power supply is fixed on the upper part of the pillar P, and is connected to the infrared light emitting diode 5 in the case 4 by the conducting wire 7. The conducting wire 7 is extended along the suspension wire M or the like. At this time, an appropriate slack is provided so as to cope with expansion and contraction of the overhead wire. The CCD camera 8 includes an infrared light emitting diode 5
Is fixed to the column P on the same line so as to be able to receive the light projection. The transmitting unit 9 attached to the camera is connected to a receiving unit 10 in a monitoring room as shown in FIG. 4, and this is connected to a computer 12 via an image processing device 11. The computer 12 further includes a terminal board 13, an abnormal alarm 14,
It is connected to a recorder 15, a printer 16 and the like. Since the light source unit has an infrared light emitting diode, the CCD camera can receive the light throughout the day and night. It is possible to reliably monitor the occurrence of abnormalities due to sideline vibration, earthquakes, temperature changes, etc.

[Brief description of the drawings] FIG. 1 is an explanatory diagram of an arrangement of a monitoring device. FIG. 2 is a side view of the light source unit. FIG. 3 is a front view of the same. FIG. 4 is a circuit diagram of the entire device. [Explanation of symbols] 1,2 ear 3 Support rod 4 cases 5 Infrared light emitting diode 6 Battery 7 conductor 8 CCD camera 9 Transmission unit 10 receiving unit 11 Image processing device 12 Computer 13 Terminal board 14 Abnormal alarm 15 Recorder 16 Printer

Continued on the front page (72) Inventor Masayuki Watanabe 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Takanori Higaki 6-5-19 Minamishinagawa, Shinagawa-ku, Tokyo No. Sanwa Tekki Co., Ltd. (72) Inventor Masafumi Yoshida 6-5-19 Minami Shinagawa, Shinagawa-ku, Tokyo Sanwa Tekki Co., Ltd. (56) References JP-A-1-305301 (JP, A) JP-A-5-278501 (JP, A) JP-A-5-25344 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60M 1/28

Claims (1)

(57) [Claims 1] A light source unit is mounted on a trolley wire, a light from the light source unit is received by a CCD camera provided on an adjacent building, and a displacement of the light source position is converted into an electric signal. An ear that is used in a device for transmitting to a computer and that has two opposing pieces with a butt edge at the upper end and teeth at the lower end that can be tightened with a central bolt, and a support rod that is fixed upward to the top of one of the ears A bowl-shaped case that has a plurality of holes drilled in the bottom surface and a lid is fixed to the surface and can be fixed to the support rod with a lid, and an infrared light emitting diode that is stored in the case and faces the head to each of the holes in the case, A light source unit for a trolley wire monitoring device, comprising: a lead wire attached to an upper portion of the trolley wire and transmitting power to the infrared light emitting diode.