JP6124528B2 - Train track monitoring system - Google Patents

Description

  The present invention relates to a train line monitoring system for monitoring a train line facility by attaching a wireless tag together with various sensors to a train line facility, configuring a network for communication between the wireless tags, and collecting sensor detection data. Is.

  A conventional train track monitoring system includes a facility monitoring set attached to a monitored object such as a feeder and an ID tag reader attached to a train car or carried by an inspection worker P (see Patent Document 1). ). The equipment monitoring set includes a measurement unit that detects various state quantities, a transmission / reception unit that records state quantities and the like as data in an ID tag, and transmits and receives data, and a power supply unit. The measuring unit 3 includes a sensor that detects various state quantities such as the current of the feeder and the temperature of the connecting portion. The transmission / reception unit includes an ID tag that can read and write various types of monitoring data by equipment IDs and sensors, and that can transmit data by radio waves using an ID tag reader, and an MPU that controls operation. The power supply unit is mainly required for transmission / reception of the ID tag, driving of the MPU, and the like, and includes a solar battery that charges the secondary battery.

JP 2006-131173 A

In the conventional system described above, in order to read data detected by various sensors with a tag reader, it is necessary to bring at least the tag reader to the ID tag mounting position, and the work of collecting data by the tag reader becomes a large amount of work. Will be enormous.
Accordingly, the present invention provides a train line monitoring system that reduces the work effort of configuring a network by radio tags of train line equipment, detecting the equipment state, collecting data remotely, and monitoring the state of the equipment. The challenge is to do.

  In order to solve the above-described problems, in the present invention, a network 2 is configured in which wireless tags 3 are respectively attached to the pillars P or associated facilities of a predetermined section, and information is sequentially transmitted between adjacent wireless tags. As a result, the monitoring information transmitted by the sensor-equipped wireless tag 3 that detects the state of the monitoring target of the train line facility is collected through the network 2 and the train line monitoring system 1 is set so as to grasp the state of the train line facility. Configured.

  In the present invention, the monitoring information of the train line facilities detected by various sensors can be acquired by the remote data monitoring server through the network configured by the wireless tag, so that the monitoring labor of the train line facilities can be reduced. Have.

1 is a schematic configuration diagram of a train track monitoring system according to the present invention. It is a conceptual diagram of the network of the monitoring system for train tracks of FIG. It is a perspective view of the connection part of a feeder and a trolley wire. (A) is a front view of a parallel sleeve to which a wireless tag is attached, and (B) is a side view of the same. (A) is the front view of the feed ear which attached the wireless tag, (B) is the side view. (A) is a front view of the linear sleeve which attached the wireless tag, (B) is the side view. It is a front view of a weight type automatic tension adjusting device to which a wireless tag is attached. It is a front view of the spring-type automatic tension adjustment apparatus which attached the wireless tag. It is a front view of the gas type automatic tension adjusting device which attached the wireless tag. (A) is the front view of the section insulator which attached the wireless tag, (B) is the same top view, (C) is the same enlarged front view. It is a front view of the train line support part which attached the wireless tag. It is a perspective view of the train line support part which attached the wireless tag. It is a front view of the train line support part which attached the radio | wireless tag which connected the ground battery and the secondary battery with a solar cell. It is a front view of the train line support part which attached the radio | wireless tag which connected the secondary battery with a solar cell etc., and a wireless power feeder. It is a conceptual diagram of the network of other embodiment.

An embodiment of the present invention will be described with reference to the drawings.
The wireless tag has a data read / write function and a communication function, and can use this function to form a wireless network that sequentially transmits information by communication. By utilizing this, the train line monitoring system 1 according to the present invention, as shown in FIG. 1, attaches the wireless tags 3 to the pillars P and other train line facilities that support the train line along the train line. The state information of the train line facilities detected by the sensor via the network 2 constituted by these wireless tags 3 is collected in the data monitoring server 4 of the center such as a power commander. The wireless tag 3 with sensor includes a sensor that can detect a physical state necessary for various types of train track management, such as a temperature sensor. The sensor-attached wireless tag 3 generates data with detection date and time and operates synchronously as a system. For example, a time such as a digital radio clock or a clock capable of time synchronization by communication between the sensor-equipped wireless tags 3 is used. Built-in clock that can be set. The network 2 is capable of bidirectional information transmission starting from the sensor-equipped wireless tag 3 and the data monitoring server 4.

As shown in FIG. 2, in the network 2, the wireless tags are nodes 3a and 3b, and information is sequentially transmitted by communicating between adjacent nodes, and the data monitoring server 4 installed in the power command center. To be recorded. In this case, there are a node 3a having a packet relay function and a node 3b which is not adjacent to the node 3a and does not have a relay function and can only communicate with the node 3a. Selected. The wireless tag 3 has an internal power source, an external power source directly connected thereto, or an active type or a wireless power feeding device that can constantly transmit power by a wireless power feeding device such as electromagnetic induction, electromagnetic resonance, or rectenna and can transmit radio waves by itself. Although there is a passive type in which power is intermittently supplied and can transmit radio waves only when the power is supplied, it is appropriately selected according to the installation location.
Note that the network 2 is advantageous for ad hoc communication in which a detour route is autonomously reconstructed when a communication impossible part occurs due to a failure in the nodes 3a and 3b on the way.

  FIG. 3 shows an example in which the wireless tag with sensor is attached to the branch point of the feeder. The feeder branch line F branches from the feeder line L supported by the support P via the parallel sleeve S1, is supported along the arm metal A between the supports P, P, and hangs down to the trolley line T to feed ear E. Connected by The wireless tag 3 is attached to the lower surface of the parallel sleeve S1, as shown in FIG. A wireless tag with a sensor provided with a temperature sensor that detects the temperature of the parallel sleeve S <b> 1 due to the current of the feeder L is applied to the wireless tag 3. When the temperature of the parallel sleeve S <b> 1 is detected by the wireless tag 3 with sensor, the temperature is transmitted to the wireless tag 3 attached to a nearby post P or other train line equipment and sent to the data monitoring server 4 through the network 2.

An example in which a wireless tag with a sensor is attached to another train line facility will be described below.
As shown in FIGS. 5A and 5B, the feed ear E at the feeder branch point is attached with the sensor-equipped wireless tag 3 for detecting the temperature, and the temperature of the feed ear E is detected. Then, the data is transmitted to another nearby wireless tag 3 and sent to the data monitoring server 4 through the network 2.

  As shown in FIGS. 6 (A) and 6 (B), the wireless sleeve 3 with the sensor for detecting the temperature is attached to the linear sleeve S2 for connecting the feeders L, and the temperature of the feed ear E is detected, The data is transmitted to another wireless tag 3 and sent to the data monitoring server 4 through the network 2.

As shown in FIG. 7, the weight type automatic tension adjusting device R1 that automatically adjusts the tension fluctuation of the train line T due to the temperature change includes a displacement sensor 3c that detects the displacement of the movable member P2 with respect to the fixed member P1. Attach the wireless tag 3. The displacement of the movable member P2 relative to the fixed member P1 is measured by the displacement sensor 3c and sent to the data monitoring server 4 through the network 2. The displacement sensor 3c can be either a mechanical type or an optical type.
A wireless tag 3 with an inclination measuring sensor for measuring the inclination of the yoke is attached to the yoke Y that holds the train line T, and the inclination of the yoke Y is measured and sent to the data monitoring server 4 through the network 2.

  As shown in FIG. 8, the wireless automatic tension adjusting device R <b> 2 is attached with a wireless tag 3 having a displacement sensor 3 c that detects the displacement of the movable member P <b> 2 with respect to the fixed member P <b> 1. This is sent to the monitoring server 4.

  As shown in FIG. 9, a wireless tag 3 having a displacement sensor 3c for detecting the displacement of the movable member P2 with respect to the fixed member P1 is attached to the gas type automatic tension adjusting device R3. This is sent to the monitoring server 4.

  As shown in FIG. 10, the section insulator I that electrically separates the train line is likely to become a hard point on the train line side when passing through the pantograph, and it is necessary to confirm an appropriate installation state after replacement. Therefore, after replacement of the section insulator, a wireless tag 3d with a sensor for detecting acceleration and a wireless tag 3e with a sensor for detecting distortion are attached and monitored for about one week. In the case of the section insulator I through which the pantograph passes in the direction indicated by the arrow, the sensor-equipped wireless tag 3d that detects acceleration is fixed to the pantograph entry side of the insulating bar that connects the trolley lines T and T. The sensor wireless tag 3e for detecting the distortion is fixed on the end of the trolley wire T to which the insulator I is coupled and on the connection fitting of the section insulator I. The acceleration of the section insulator I pushed up by the passage of the pantograph and the distortion of the connection fitting and the trolley wire T are measured by the wireless tags 3d and 3e with sensors, and sent to the data monitoring server 4 through the network 2, thereby It can be used to verify the quality of the installed state and to verify after replacement work.

  As shown in FIG. 11, insulators G for insulating a train line to which a high voltage is applied are often used along the train track at the support position of each column P or the like. In order to detect the abnormality of the lever G, the wireless tag 3 with a sensor for measuring current is attached to the lever G of the support column P and the support position of the train line. By sending the measured current to the data monitoring server 4 through the network 2, it is possible to grasp the insulation state of the insulator G and monitor the insulation state of the representative points in each line section.

  In order to detect the passage of an abnormal pantograph with a failure or the like at a boundary with a railroad company along a different railway line, as shown in FIG. 12, an arm A extending above the track so as to support the trolley line T In addition, a wireless tag 3 having a displacement sensor for measuring the push-up amount of the trolley wire T is attached, and a wireless tag 3 having an acceleration sensor for measuring acceleration is attached to the upper portion of the trolley wire T in the vicinity thereof. By sending the measured push-up amount and acceleration to the data monitoring server 4 through the network 2, when an abnormal pantograph passes, an abnormal value appears in the push-up amount and acceleration. Can be specified.

The power source of the wireless tag 3 includes a primary battery in order to reduce the installation cost, and is connected to a ground power source 5a separately installed on the ground as shown in FIG. You may connect to the secondary battery 5b with a battery, or as shown in FIG. 14, you may connect the secondary battery 5c with a solar cell installed in the high voltage | pressure side.
Further, as shown in FIG. 14, the wireless power feeding device 6 on the support P may be applied to the power source of the wireless tag 3. In the wireless power feeding device 6, for example, a primary transmission antenna 6 a is installed on a support P and a secondary reception antenna 6 b is connected to the wireless tag 3. As the wireless power feeding device 6, an electromagnetic induction method, an electromagnetic resonance coupling method, a rectenna method, or the like can be applied. The primary side transmission antenna 6a can change an installation position suitably according to the distance which can be transmitted.

  When the network 2 covers a relatively wide area, connection to the data monitoring server 4 may be performed via the relay station 7 as shown in FIG. The relay station 7 has a function of appropriately converting the communication protocol in the network 2 and transferring the data to the data monitoring server 7. The relay station 7 and the data monitoring server 4 can be connected through a wired WAN, a wireless LAN, a wireless telephone line, or the like.

  In addition, this invention is not limited to said each embodiment, It attaches the wireless tag with a sensor which detects other train track facilities, and detects the state quantity according to facilities, and it is included in the network 2. it can.

Further, the information transmitted by the network 2 may be not only the state information detected by various sensors as described above, but also information already recorded in the wireless tag. For example, when receiving accident information on train tracks from other companies, branch offices, line districts, etc. and taking precautions necessary to prevent the recurrence of accidents, the replacement timing of parts recorded on the wireless tag From the information such as the service life, information on only the equipment that meets the conditions set in the power command center is extracted. As described above, various types of information by the sensor and the wireless tag may be collected by limiting to specific information according to the monitoring purpose based on the command of the data monitoring server 4.
Furthermore, a node (wireless tag) in which communication in the network 2 is disconnected may be detected by the data monitoring server 4 at the power command center, and a warning may be displayed so as to prompt inspection / repair.

As described above, since the network 2 is capable of bidirectional communication between the sensor-equipped wireless tag 3 and the data monitoring server 4, the communication mode starting from the sensor-equipped wireless tag 3 and the data monitoring server There is a communication mode starting from 4. As an example of the use of the communication mode starting from the sensor-equipped wireless tag 3, a caution area reference value of 70 ° C. and a dangerous area reference value of 90 ° C. are defined for the temperature of the parallel sleeve S1 to be monitored In addition, when the wireless tag with sensor 3 detects any of the reference values exceeding, the data monitoring server 4 such as the power command center is notified together with the generation date and time and the ID information of the wireless tag with sensor 3.
As an example of use of the mode starting from the data monitoring server 4 such as the power command center, the data monitoring server 4 communicates with each sensor-equipped wireless tag 3 at regular time intervals, and these measured values, ID information, etc. 2 to the data monitoring server 4. In the case of monitoring the temperature of the equilibrium sleeve S1, when the above-mentioned attention area reference value excess is detected, only the corresponding wireless tag 3 with the sensor is designated in order to monitor the transition to the dangerous area reference value in detail. It is also possible to report the situation to the data monitoring server 4 at time intervals.

DESCRIPTION OF SYMBOLS 1 Monitoring system for train tracks 2 Network 3 Wireless tag 3a Node 3b Node 3c Displacement sensor 3d Acceleration sensor 3e Strain sensor 4 Data monitoring server 5a Ground power supply 5b Secondary battery with solar battery 5c Secondary battery with solar battery 6 Wireless power supply device 6a Primary side transmission antenna 6b Secondary side reception antenna 7 Relay station P Post T Trolley wire F Feeding branch line S1 Parallel sleeve S2 Straight sleeve E Feed ear R1 Weight type automatic tension adjustment device R2 Spring type automatic tension adjustment device R3 Gas type automatic tension adjusting device P1 fixed member P2 movable member I section insulator G insulator

Claims (7)

A plurality of wireless tags respectively attached to a train line post or ancillary equipment of a predetermined section ;
A data monitoring server that collects monitoring information from these wireless tags and grasps the state of the train track facilities ,
A communication protocol with the wireless tag is converted to configure a network from a relay station that transfers monitoring information to the data monitoring server ,
The monitoring information transmitted by the wireless tag is sequentially transmitted between adjacent wireless tags, and is received by the data monitoring server via a relay station,
A train track monitoring system , wherein the monitoring information includes acceleration of a section insulator . The train line monitoring system according to claim 1, wherein the monitoring information transmitted between the wireless tags is detected by a wireless tag with a sensor or recorded in advance in the wireless tag . The train system according to claim 1 or 2 , wherein the wireless tag includes a clock, and the monitoring information includes a detection time by a sensor . The train track monitoring system according to any one of claims 1 to 3 , wherein the sensor-equipped wireless tag is capable of changing a transmission interval of monitoring information based on a command from the data monitoring server . Monitoring information transmitted through the network from the wireless tag, to any one of claims 1 to 4, characterized in that it can be limited to specific monitoring information corresponding to the monitored object on the basis of a command of the data monitoring server The monitoring system for the train line described. Train-line monitoring system according to any one of claims 1 to 5, characterized in that it comprises a wireless power feeder power supplied to the wireless tag. The train line monitoring system according to any one of claims 1 to 6 , wherein if there is a communication failure in a part of the wireless tag of the network by the wireless tag, the detour route is reconstructed autonomously .

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