JP2020006895A - Switch sensor, switch monitor, and switch - Google Patents

Abstract

To provide a switch sensor capable of surely monitoring the operation of a switch, a switch monitor including the switch sensor, and the switch.SOLUTION: The switch sensor includes an operating rod 10 extending from a main body part 100A, a connection part 20 that is connected to the operating rod 10 and constituted by a switch adjuster rod 21 and the like to be connected to a tongue rail TR, and a jaw pin sensor 30 that serves as a jaw pin with a sensor for measuring the load of the operating rod between the operating rod 10 and the switch adjuster rod 21.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a switch sensor for monitoring the operation of a switch, a switch monitor equipped with the switch sensor, and a switch in a railway turnout.

  The role of the point machine or the point device is to convert the rails into close contact as exemplified in Non-Patent Document 1, for example. Therefore, it is very important to be able to check whether or not the operation of switching and bringing the rails into close contact is being performed reliably.

  Here, as one typical configuration example of the switch, as exemplified in Non-Patent Document 1, there is an electric switch that converts rails by a motor. Regarding the measurement of the conversion force when the rail is changed in the electric point machine, for example, a method of estimating the conversion force from the voltage or current of the motor during operation can be considered. However, such a method may cause various errors such as a manufacturing error and an error based on a temperature characteristic, so that it is not always possible to reliably measure the conversion force. Further, in the case of using the motor voltage or the like as described above, it is not possible to measure the adhesion force that keeps the rails in close contact after conversion.

General Incorporated Association Japan Railway Electric Technology Association Signal Overview for Railway Electric Engineers Railway Signal General [Revised 2nd Edition] p. 55 to p. 63

  The present invention has been made in view of the above points, and has a switch sensor capable of reliably monitoring the operation of a switch, a switch monitor including the switch sensor, and a switch. The purpose is to provide.

  In order to achieve the above object, a switch sensor includes a measuring unit for measuring an operation can load between an operation can of the switch and a connection unit connected to the operation can.

  In the above-mentioned point sensor, the measurement by the measuring part is performed between the operation part of the point machine and the connection part connected to the operation part, so that the change when the rail is changed by the point machine is performed. It is possible to reliably measure the operation load, which is correlated with the force and the adhesion force that keeps the rail in close contact after conversion, and thus whether the operation of the point machine is normal or not Can be monitored.

  In a specific aspect of the present invention, the connecting portion is a switch adjuster rod for transmitting a force for moving the rail by the operation can, and the measuring portion is a jaw pin with a sensor for connecting the operation can and the switch adjuster rod. In this case, by using the jaw pin with the sensor, it is possible to accurately perform a desired measurement between the operating can and the connecting portion.

  In another aspect of the present invention, the measuring unit measures at least one of a value related to a conversion force at the time of changing the rail and a value related to a contact force for bringing the rail into close contact, as the operation load. In this case, the measuring unit can perform accurate measurement for grasping the state of the conversion force and the adhesion force.

  A point machine monitor for achieving the above object, the point machine sensor, an arithmetic processing unit that calculates at least one of a conversion force and a contact force from a measurement result of the measurement unit, and an arithmetic processing unit And a display unit for displaying the processing result in the above. In this case, it is possible to monitor whether or not the operation of the point machine is normal by performing necessary arithmetic processing in the arithmetic processing unit and displaying the presence or absence of the resulting abnormality on the display unit. .

  According to a specific aspect of the present invention, the arithmetic processing unit determines whether or not there is an abnormality based on a predetermined threshold with respect to a calculation result based on the measurement result of the measurement unit. In this case, it is possible to reliably determine the presence or absence of an abnormality in the point machine.

  In another aspect of the present invention, the arithmetic processing unit has a recording cycle variable unit that changes a cycle of recording data of the measurement unit. In this case, for example, the sampling speed is changed in accordance with the speed of the train passing through the point where the point is installed, to catch the peak in the train vibration, and to avoid erroneous recognition due to the influence of the vibration. Becomes possible.

  In still another aspect of the present invention, the measurement unit includes a wiring unit that performs communication connection for outputting a measurement result while receiving power supply. In this case, power supply to the measurement unit and communication connection for the measurement result are performed by the wiring unit.

  According to still another aspect of the present invention, a shelf unit supporting the wiring unit is provided. In this case, the wiring section and the measuring section can be stabilized by the shelf plate section, and the possibility of disconnection of the wiring section can be reduced.

  In still another aspect of the present invention, the wiring portion is housed in a groove provided for the operation can. In this case, disconnection of the wiring portion can be reduced by housing the wiring portion in the groove.

  According to still another aspect of the present invention, there is provided a non-contact power supply unit for supplying power to the measurement unit in a non-contact manner. In this case, power can be supplied to the measurement unit by the non-contact power supply unit.

  In still another aspect of the present invention, the non-contact power supply unit is provided so as to extend along a moving direction of the measurement unit. In this case, power supply can be reliably maintained while the measuring unit is moving.

  According to still another aspect of the present invention, there is provided an external power supply communication unit that is provided independently of the main body of the switch and that performs communication connection for measurement results while supplying power to the measurement unit. In this case, the external power supply communication unit enables power supply and communication independent of the main body of the switch. In this case, for example, it is easy to attach a new sensor or a monitor to the existing equipment of the switch.

  In still another aspect of the present invention, the external power supply communication unit includes a solar cell attached to the connection unit. In this case, power supply by the solar cell becomes possible.

  A switching machine for achieving the above object has a movement can, a connection part connected to the movement can, and a measurement part for measuring a movement can load between the movement can and the connection part. Machine sensor.

  In the above-mentioned point machine, the measurement by the measuring unit provided on the point sensor is performed between the operation part of the point machine and the connection part connected to the operation part, so that the point machine Operation that correlates with the conversion force when converting rails and the adhesion force that maintains the rails in close contact after conversion can be reliably measured, and as a result, the operation of the point machine It is possible to monitor whether or not is normal.

FIG. 2 is a plan view conceptually showing a switch to which the switch according to the first embodiment is applied. It is a perspective view which shows an example of a structure about the switch in a switch. It is a front view which shows notionally about an example of the mode of connection of the operation rod by a jaw pin and a switch adjuster rod. It is a structural diagram for explaining an example about a point sensor. It is a circuit diagram for explaining an example about a point sensor. It is a key map showing an example about a situation of a switch monitor provided with a switch sensor. It is a graph for explaining an example about a situation of conversion power and adhesion power. It is a flowchart for demonstrating an example about a series of monitoring operation | movement in switching of a switch. It is a plane sectional view showing notionally about a switch machine concerning a 2nd embodiment. It is a notched perspective view which shows notionally about the switch machine concerning 2nd Embodiment. It is a plane sectional view showing notionally about a point change machine of one modification. It is a notch perspective view which shows notionally about the point machine of a modification. It is a plane sectional view showing notionally about a switch machine concerning a 3rd embodiment. It is a notch perspective view which shows notionally about the switch machine concerning 3rd Embodiment. It is a plane sectional view showing notionally about a switch machine concerning a 4th embodiment. It is a plane sectional view showing notionally about a switch machine concerning a 5th embodiment. It is a plane sectional view for explaining an example about an installation place of a display.

[First Embodiment]
Hereinafter, with reference to FIG. 1 and the like, a description will be given of a switch and a switch sensor and a switch monitor provided in the switch according to the first embodiment.

  As illustrated in FIG. 1 and FIG. 2, the switch 100 of the present embodiment is an electric switch, and includes a basic rail SR and a tong rail TR on a sleeper SP configuring the branching device P. By moving the tongue rail TR, the route of the train in the branching device P is switched.

  Here, as illustrated in the figure, in order to perform the switching operation, the switching machine 100 includes, in addition to a main body 100A including a motor or the like as a power source, an operation can 10 extending from the main body 100A. A connecting portion 20 composed of a switch adjuster rod 21 and the like connected to the operation can 10 and connected to the tongue rail TR; Prepare. In addition to the components for performing the switching operation, the switching machine 100 includes, for example, a lock LL for locking the position after the switching operation.

  As shown in the figure, the main body 100A is mounted on one end of the first and second sleepers SP1 and SP2, which are longer than the normal sleepers SP arranged at a predetermined interval, so that the line branching device is separated. It is arranged on the side of P, and is fixed so as not to move with respect to the first sleepers SP1 and SP2 by a fixing device or the like. The main body 100A has a motor, a power device for moving the motor, and the like, and generates a conversion force when moving the tong rail TR by moving the operation can 10 back and forth. In addition, when the motor is not driven, a structure for enabling a manual switching operation may be provided.

  The operation can 10 is a plate-shaped or rod-shaped metal member extending from the inside of the main body 100A, and moves forward and backward with the driving operation by the main body 100A. More specifically, the operation can 10 changes the tong rail TR from the normal position to the opposite position or from the opposite position to the normal position with respect to the basic rail SR.

  After the changeover by the operation can 10, the turning machine 100 positions the operation can 10 in the localization position by the action of the lock piece (not shown) inside the main body 100 </ b> A with the operation of the lock can LL. And in the inverted position, respectively.

  The connecting portion 20 has a switch adjuster rod 21 and the like, and is connected to the operating can 10 via the jaw pin sensor 30 to thereby transmit a force from the operating can 10 for moving the tong rail TR. Function as More specifically, the connecting portion 20 has other connecting devices 22 and 23 while using the metal switch adjuster rod 21 as a main component, and operates at the distal end side of the switch adjuster rod 21. While being connected to the tongue rail TR on the other end side, that is, the distal end side of the connection device 23, the conversion force from the operation can 10 is transmitted to the tongue rail TR.

  As illustrated in FIG. 3 and the like, the jaw pin sensor 30 has a pin shape or a bolt shape mainly composed of a metal member, and is provided at the distal end of the operation can 10 and the distal end of the switch adjuster rod 21. It is a pin member that connects them by being inserted into the through hole. In particular, in the present embodiment, the jaw pin sensor 30 has a structure having a strain sensor for measuring its own strain due to a force received from the operation can 10 or the like. Thereby, the jaw pin sensor 30 functions as a jaw pin with a sensor. That is, the jaw pin sensor 30 is provided between the operation can 10 of the point machine 100 and the switch adjuster rod 21 constituting the connecting portion 20 connected to the operation can 10 according to the degree of its own sensed sense. Functions as a measuring unit for measuring the operation load. An example of a detailed structure of the jaw pin sensor 30 will be described later with reference to FIG.

  Here, for the operation can load to be measured, that is, for the load applied to the operation can 10, various things can be considered, but as a typical example that is important from the viewpoint of the function of the switch 100, The conversion force at the time of changing the tongue rail TR (rail to be shifted) and the adhesion force for bringing the tongue rail TR into close contact with the basic rail SR are given. The role of the point machine 100 is to convert the rails into close contact. Therefore, it is possible to check whether or not the conversion operation is being performed reliably during the operation of converting and bringing the rail into close contact, and to accurately inspect whether or not the adhesion state after the conversion is properly maintained. It is very important to keep

  On the other hand, in the present embodiment, as illustrated in FIG. 3, the jaw pin sensor 30 between the operation can 10 and the switch adjuster rod 21 which is a main part of the connection unit 20 is used as a measurement unit. A force is applied to the jaw pin sensor 30 during the conversion operation or in the close contact state after the conversion operation, for example, as indicated by a bidirectional arrow AR1. Therefore, a strain force corresponding to such a force is applied to the jaw pin sensor 30. In the present embodiment, various values corresponding to the strain stress applied to the jaw pin sensor 30 and the like are measured, and the measurement result of the jaw pin sensor 30 is used at the time of the switching operation of the point machine 100 or after the switching operation. It is used as an indicator to show the power of That is, in the present embodiment, the measurement using the jaw pin sensor 30 as a measuring unit is correlated with the conversion force when the rail is changed by the point machine and the adhesion force that maintains the rail in a tight contact state after the conversion. It is possible to reliably measure the operation can load by grasping it as one of the operational can load having the characteristic, and to monitor whether the operation of the switch is normal or not. I have. That is, it can be said that the jaw pin sensor 30 functions as a point sensor for sensing the operation load of the point machine 100.

  Hereinafter, with reference to FIG. 4 and the like, the structure of the jaw pin sensor 30 that constitutes the switch sensor of the present embodiment and the operation of the switch 100 based on the output result from the switch sensor will be described. A switch monitor for monitoring whether or not it is normal will be described.

  First, in the structural diagram shown in FIG. 4, the upper row α is a plan view of an example of the jaw pin sensor 30 as a point sensor, and the lower row β is a side view of the jaw pin sensor 30. The jaw pin sensor 30 has a pin shape or a bolt shape as shown in the drawing and as described above, while having a metal member as a main configuration. Here, the jaw pin sensor 30 is provided so as to extend from the side of the head portion 30h, a head portion 30h provided as a top of the rod-shaped main portion 30a, a top portion of the main portion 30a, and to output measurement results and to supply electricity. And a wiring portion CN forming a cable CB for the connection.

  The main body portion 30a is an insertion portion (see FIG. 3) that is inserted into a through hole provided in the distal end portion of the operation can 10 and the distal end portion of the switch adjuster rod 21 to connect them. In the jaw pin sensor 30 of FIG. 4, the main body portion 30a is inserted into each portion, and the head portion 30h and the wiring portion CN extending therefrom can connect the measurement result to an output destination.

  A strain sensor DS for measuring strain is provided on the surface or inside of the main body portion 30a. That is, the load applied to the main body portion 30a during the switching operation of the point machine 100 and the load applied to the main body portion 30a in the contact state after the conversion can be measured by the strain sensor DS. In other words, the strain sensor DS plays a central role as a measuring unit for measuring the operation load of the point machine 100 in the jaw pin sensor 30. In the example shown in FIG. 4, the concave portion CV is provided intermittently along the side surface of the columnar main body portion 30a, the strain sensor DS is formed on the surface of the concave portion CV, and the protection member PP that covers the strain sensor DS of the concave portion CV Is provided, while ensuring the measurement by the strain sensor DS, and ensuring sufficient durability and strength to function as a jaw pin for connecting the members of the jaw pin sensor 30. Note that the above is merely an example, and any other configuration may be used as long as the configuration can function as a measuring unit for measuring the operation load and maintain sufficient durability and strength as a jaw pin.

  Further, as the structure of the strain sensor DS, for example, various known ones can be applied, but for example, a configuration having a bridge circuit as shown in a circuit diagram conceptually shown in FIG. 5 can be considered. In this case, four wires are taken out from the strain sensor DS to output the measurement result, and the cable CB constituting the wiring portion CN is at least bundled and the terminal portion TA And outputs a signal corresponding to the measurement result to another member.

  As described above, the head portion 30h is provided as a top portion of the main body portion 30a, and is not affected or hardly affected by the operation load.

  As described above, the wiring portion CN extends from the side of the head portion 30h, and forms a cable CB for outputting a measurement result while receiving power supply from another member. Since the wiring portion CN is provided on the side of the head portion 30h, the wiring portion CN is not affected or hardly affected by the operation load, and the possibility of damage to the cable CB due to the operation load is avoided. are doing.

  As for the dimensions of the cylindrical jaw pin sensor 30 as described above, for example, the diameter R1 is assumed to be about 20 to about 30 mm at a minimum, and the total length L1 in the axial direction is about 80 to 100 mm.

  An example of a switch monitor including the jaw pin sensor 30 as the switch sensor will be described below with reference to FIG.

  As illustrated in FIG. 6, the switch monitor 50 according to the present embodiment includes a jaw pin sensor 30 that is a switch sensor and a processing device that performs various processes based on an output result from the jaw pin sensor 30. 40.

  The processing device 40 includes an arithmetic device 41 that is an arithmetic processing unit that performs various arithmetic processes, a display device 42 that is a display unit that performs a display operation based on the processing result of the arithmetic device 41, and a processing result of the arithmetic device 41. And a transmission device 43 for performing various communications such as transmission to the outside. The processing device 40 may be, for example, an electronic circuit including a CPU for various types of arithmetic processing and a storage device for storing information. In addition, as illustrated in FIG. 1, for example, the processing device 40 may be configured such that a unitized device is installed inside the main body 100 </ b> A to secure a power source and to be appropriately connected to the jaw pin sensor 30. .

  Returning to FIG. 6, among the processing devices 40, first, the arithmetic device 41 is connected to the wiring portion CN of the jaw pin sensor 30, acquires the measurement result of the jaw pin sensor 30, and operates based on this information. An arithmetic processing unit that calculates at least one of the above-described conversion force and adhesion force corresponding to a canning load. The arithmetic unit 41 has a storage unit ME for storing information necessary for various arithmetic processes. The storage unit ME stores, for example, a data table of the load and the strain amount. The arithmetic unit 41 stores the data table of the storage unit ME based on the measurement result of the strain amount and the load detected by the measurement of the jaw pin sensor 30. By referring to it, the conversion power and the adhesion can be calculated quantitatively. Here, it is assumed that the arithmetic unit 41 calculates both the conversion force and the adhesion force by using the data table as described above. That is, during the conversion operation by the point machine 100, the conversion force is calculated based on the measurement result of the jaw pin sensor 30, and after the conversion operation, the adhesion force is calculated based on the measurement result of the jaw pin sensor 30. Is calculated. Further, for example, the arithmetic device 41 performs, as an arithmetic processing unit, a calculation result based on the measurement result of the jaw pin sensor 30 as described above, and compares the calculation result with a predetermined threshold value. Based on the threshold value, it is determined whether there is an abnormality during or after the conversion operation. It should be noted that a data table relating to various threshold values for enabling such determination is stored in the storage unit ME.

  For the predetermined threshold, various settings can be considered according to the allowable range in the installation environment and the like.For example, when the calculated value of the conversion force exceeds the upper threshold, the rail The threshold value can be set in advance to indicate that the conversion load may be excessive due to rust or the like. When the calculated value of the adhesion is smaller than the lower threshold, the threshold is set so as to indicate that the rail holding when passing through the train may have become unstable. Can be set. For the threshold value, for example, a normal value is set in advance for each branch, and the arithmetic unit 41 determines that the value is abnormal when the value exceeds the preset value. In order to prevent the determination from being abnormal when the threshold value is exceeded, for example, the threshold value is not immediately determined to be abnormal even if the numerical value is exceeded, and is output abnormally when the threshold value is continuously exceeded N times (N: a natural number of 2 or more) at a set sampling interval. It is conceivable to determine such conditions.

  As a matter other than the above, the arithmetic unit 41 may further include a recording cycle variable unit 41a that changes a cycle for recording a measurement result from the jaw pin sensor 30. In the recording cycle variable section 41a, for example, the cycle of recording the data from the jaw pin sensor 30 is changed according to the passing speed of the train to catch a peak in the train vibration, and erroneous recognition due to the influence of the vibration is avoided. And so on. As another viewpoint, the switch 100 is an electric switch, and performs a conversion operation by electric drive in a normal operation, but performs a conversion operation by hand in a case of, for example, a trial operation. It is also possible. In this case, the operation is generally slower than the conversion operation by electric drive. By changing the data recording cycle in response to this, it is possible to obtain data that can be compared with the time of electric drive even during manual operation.

  Next, the display device 42 is, for example, a display monitor using an LED or the like, and performs a display operation according to the measurement result of the arithmetic device 41. As a typical example, when the values of the conversion force and the adhesion force calculated by the arithmetic device 41 exceed a predetermined threshold value and it is determined that some abnormality has occurred, a message to that effect is displayed. Such a mode can be adopted. There are various possible locations for the display device 42. For example, when the processing device 40 is installed inside the main body 100A (see FIG. 1), a small window is appropriately provided in the main body 100A to display the display inside the main body 100A. It is possible to make the device 42 observable from the small window.

  In addition, the transmission device 43 is a communication facility that performs communication with an external device by wire or wirelessly. In the illustrated example, the transmission device 43 controls, monitors, and the like each unit such as a plurality of points installed at the station. It can communicate with the device SS by polling answer. In addition, for example, when the processing device 40 is installed inside the main body 100A (see FIG. 1), if communication from the main body 100A of the switch 100 to the station device SS is performed by wire, the processing is also performed together with this. It is conceivable that communication from the transmission device 43 can be performed. The contents of transmission from the transmission device 43 include, for example, the value of the most recent conversion force, that is, the value relating to the operation load at the localization / inversion during the conversion operation, and the value of the current adhesion force, that is, the localization during the lock. -There are values related to the operation load on the inversion. Further, the transmission contents may include a lateral pressure peak at the time of passing the latest train or continuous data at the time of passing a car.

  In addition, various types of processing in the station device SS are also conceivable. For example, it is also conceivable that the station device SS takes part of the various processes in the arithmetic device 41 of the processing device 40 described above. For example, in a case where the status during the switching operation or the locking is performed in the station device SS in a lump, only the measurement process is performed on the processing device 40 side, and the measurement result is used as the raw data in the station device SS. The information may be transmitted to the device SS, and if an abnormality is confirmed as a result of performing various processes in the station device SS, a necessary alarm or the like may be performed in the station device SS.

  In addition, for example, the determination of the wear of the jaw pin sensor 30 may be performed based on the measurement result of the jaw pin sensor 30. For example, it is conceivable to make a wear determination based on a waveform pattern of a conversion operation obtained as a measurement result. More specifically, with regard to the wear of the jaw pin sensor 30, a specific peak may appear in the waveform pattern due to an increase in backlash due to aging. By extracting such a unique peak from the measurement result of the jaw pin sensor 30, the wear of the jaw pin sensor 30 can be determined. In addition, when the play as described above increases, the impact applied to the jaw pin sensor 30 at the start of the conversion also increases. Accordingly, such impact force is recorded in the storage unit ME for each conversion operation, and the recorded result is sampled to determine whether or not the tendency is as described above to determine the wear determination. It may be performed.

  FIG. 7 is a graph for explaining an example of the state of the conversion force or the adhesion in the conversion operation including before and after the conversion. The horizontal axis of the graph indicates time (unit: second), and the vertical axis indicates the value of conversion force or adhesion (unit: kN). That is, the curve Q1 shows a change in each force with time. Note that the value on the vertical axis is indicated by a positive or negative value depending on the left / right direction of the pressing, and therefore, there are some places indicated as negative depending on the direction in which the force is applied. In the drawing, a state of movement from the localization to the inversion is shown. Since the direction of the force applied to the jaw pin sensor 30 is different between the localization and the inversion, the sign of the numerical value is different on the vertical axis of the graph. I have. In the illustrated case, the time period T1 indicates the contact force in the close contact state before the switching operation by the point machine 100 (localization), and the time period T2 indicates the switching during the switching operation by the point machine 100. The state of the force change is shown, and the time zone T3 shows the adhesion force in the adhesion state after the turning operation by the point machine 100 (inversion). In addition, before and after the time period T2, that is, in the process of changing from the conversion force to the adhesion force, the value of the force changes rapidly, but this is caused by the lock LL for fixing the position before and after the switching operation. This is because there is an effect of the locking by the operation (see FIG. 1 and the like) and the lock piece accompanying the operation. For example, at the transition from the time zone T2 to the time zone T3, a pushing operation (slightly pushing) on the tong rail TR is performed to make the state of close contact, and the waveform on the graph shows a peak value. . When the lock piece is locked after a short push, the reaction force (return) from the basic rail SR results in a slight weakening of the adhesion, and the waveform on the graph shows a value slightly lower than the peak value. And so on. In addition, if the force at the time of slight pushing is too large, over-adhesion is concerned, and if the difference between the value at the time of slight pushing and the value of the subsequent contact force is too large, over-adhesion or wear of the mechanism Is concerned. In addition, when the conversion load is large at the time of conversion, for example, there is a fear that the device that performs the operation runs out of oil. Therefore, in each unit of the processing device 40, a threshold value may be determined for these numerical values, and the abnormality of the operation may be determined by comparison.

  The curve Q1 shown in FIG. 7 shows an example of a case where the operation is performed normally, that is, an example of a case where a series of operations are performed without exceeding a predetermined threshold value. If the change in the conversion power or the adhesion in the step exceeds a predetermined threshold value, it is determined that there is an abnormality, and necessary notification processing is performed.

  Hereinafter, an example of a series of monitoring operations in switching the switch 100 will be described with reference to the flowchart of FIG. First, when the switch 100 is operated and the operation can 10 starts driving (step S101), the arithmetic unit 41 of the processing device 40 executes a processing device such as a change of a contact point in a relay device in the switch 100. Based on the information obtained from the external device 40, it is confirmed whether or not the movement operation of the tong rail TR by the operation can 10 is completed (step S102). If it is determined in step S102 that the operation is not completed (step S102: No), the arithmetic unit 41 determines that the conversion operation is being performed, and stores the result in the storage unit ME based on the measurement result of the jaw pin sensor 30. The conversion power is calculated by referring to the stored data table (step S103). Next, based on the calculation result of step S103, the arithmetic device 41 performs a comparison with a threshold value of a data table stored in the storage unit ME as appropriate, and determines whether an abnormality has occurred in the conversion operation (step S103). S104). If it is determined in step S104 that no abnormality has occurred (step S104: No), the processing device 40 notifies the display device 42 or the like of normality (step S105), and the operation from step S102. repeat. On the other hand, when it is determined in step S104 that an abnormality has occurred (step S104: Yes), the processing device 40 gives a notification indicating that the abnormality is present or the content of the abnormality through the display device 42 or the like (step S106). ), End a series of monitoring operations.

  On the other hand, when it is determined in step S102 that the movement of the tong rail TR by the operation can 10 has been completed (step S102: Yes), the arithmetic unit 41 determines that the contact state has been achieved, and The adhesion force is calculated by referring to the data table stored in the storage unit ME based on the measurement result (step S201). Next, based on the calculation result in step S201, the arithmetic unit 41 appropriately compares the calculated value with a threshold value in a data table stored in the storage unit ME, and determines whether an abnormality has occurred in the close contact state (step S201). S202). When it is determined in step S202 that no abnormality has occurred (step S202: No), the processing device 40 notifies the display device 42 or the like of normality (step S203), and performs a series of monitoring operations. finish. On the other hand, if it is determined in step S202 that an abnormality has occurred (step S202: Yes), the processing device 40 transmits a notification indicating that the abnormality is present or the content of the abnormality on the display device 42, This is performed by communication to the outside of the switching device 100 such as the station device SS or the portable terminal by the transmission device 43 (step S204), and a series of monitoring operations ends.

  The determination of the wear of the jaw pin sensor 30 can be performed at the same time, for example, when detecting the occurrence of an abnormality during the switching operation in step S104. In particular, at the start of the conversion operation, it is conceivable to determine the wear of the jaw pin sensor 30 based on, for example, an impact applied to the jaw pin sensor 30. As a specific example, the wear determination is performed by detecting a unique peak in the waveform pattern during the conversion operation or an impact force exceeding a predetermined threshold applied to the jaw pin sensor 30 at the start of the conversion. And so on.

  As described above, in the switch sensor according to the present embodiment, the switch monitor including the switch sensor, and the switch, the jaw pin sensor 30 as the measuring unit or the distortion of the jaw pin sensor 30 is measured. By performing the measurement by the sensor DS between the operation can 10 of the point machine 100 and the connecting portion 20 connected to the operation can 10, the conversion force when changing the rail by the point machine 100, It is possible to reliably measure the operation load that correlates to the adhesion force that keeps the rails in close contact after the change, and to monitor whether the operation of the point machine is normal. It becomes possible.

[Second embodiment]
Hereinafter, with reference to FIG. 9 and the like, an example of a turning machine and the like according to the second embodiment will be described.

  The point machine according to the present embodiment is a modification of the point machine illustrated in the first embodiment. Regarding the point sensor, except for the structure related to the wiring unit having a cable, Since the configuration is the same as that of the first embodiment, the description of the entirety of the switching machine is omitted, and only the structure related to the wiring unit will be described.

  FIG. 9 is a plan cross-sectional view conceptually showing the point turning machine 200 according to the present embodiment, and FIG. 10 is a cutaway perspective view. Note that FIG. 10 corresponds to a diagram viewed from the AA direction in FIG.

  As shown in FIG. 10, in the present embodiment, unlike the first embodiment, the jaw pin sensor 30 is inserted from below. In other words, in the first embodiment, the head portion 30h located at the uppermost side (see FIG. 3 and the like) of the jaw pin sensor 30 is located at the lowermost side of the jaw pin sensor 30 in the present embodiment. I have. Along with this, the wiring portion CN extending from the side of the head portion 30h is also located below. As a result, the cable CB in the wiring portion CN is inserted from below the main body 200A of the switch 200. In particular, here, the cable CB is inserted into the housing SC from the location of the drain plug (or drain hole) WS provided on the lower side of the housing SC constituting the appearance of the main body 200A and installed inside the housing SC. Connected to the processing device 40 that has been activated. As shown in FIG. 9, the processing device 40 is connected to a terminal board TB installed inside the housing SC, so that power is supplied from the terminal board TB.

  In the illustrated example, a cover member (eave) CP that covers the operation can 10 including the jaw pin sensor 30 and the sleeve SV of the housing where the switch adjuster rod 21 is installed is provided.

  FIG. 11 is a plan cross-sectional view conceptually showing a point change machine 200 according to a modification of the present embodiment, and FIG. 12 is a cutaway perspective view.

  As shown in the drawing, in the present modification, a shelf portion SB for supporting the wiring portion CN is further provided below the main body portion 200A. In this case, the wiring portion CN and, consequently, the jaw pin sensor 30 are stabilized by the shelf portion SB, and the possibility of disconnection in the routing of the cable CB in the wiring portion CN can be reduced.

  Also in the present embodiment, by performing the measurement by the jaw pin sensor 30, it is possible to reliably measure the conversion force and the adhesion force, and to monitor whether or not the operation of the point machine is normal. Becomes possible. Further, in the case of the present embodiment, it is possible to reliably route the cable CB in the wiring portion CN in the drain plug WS provided on the lower side of the housing SC and the shelf plate portion SB.

[Third embodiment]
Hereinafter, with reference to FIG. 13 and the like, an example of a turning machine and the like according to the third embodiment will be described.

  The point machine according to the present embodiment is a modified example of the point machine illustrated in the first embodiment and the like. Regarding the point machine sensor, except for the structure related to the wiring unit having a cable, Since it is the same as the case of the first embodiment and the like, the description of the entire point machine will be omitted, and only the structure related to the wiring portion will be described.

  FIG. 13 is a plan cross-sectional view conceptually showing the point switching machine 300 according to the present embodiment, and FIG. 14 is a cutaway perspective view.

  As shown in the drawing, in the present embodiment, unlike the first embodiment and the like, a groove portion DT for accommodating the cable CB of the wiring portion CN is provided on the upper surface 10s of the operation can 10, and from the groove portion DT, The cable CB is inserted from the can 10 into the inside of the main body 300A. By housing the wiring portion CN in the groove portion DT, disconnection of the wiring portion CN or the cable CB of the wiring portion CN can be suppressed.

  Also in the present embodiment, by performing the measurement by the jaw pin sensor 30, it is possible to reliably measure the conversion force and the adhesion force, and to monitor whether or not the operation of the point machine is normal. Becomes possible. Further, in the case of the present embodiment, the cable CB in the wiring portion CN can be reliably routed by the groove DT provided in the operation can 10.

[Fourth embodiment]
Hereinafter, an example of a turning machine and the like according to the fourth embodiment will be described with reference to FIG.

  The switch according to the present embodiment is a modified example of the switch illustrated in the first embodiment and the like. Regarding the switch sensor, a portion excluding a structure for power supply and communication connection is described. Are the same as those in the first embodiment and the like, so that the description of the entirety of the point machine will be omitted, and only the structure of different points will be described.

  FIG. 15 is a cross-sectional plan view conceptually showing a point machine 400 according to the present embodiment. As shown in the drawing, the present embodiment is different from the other embodiments in that a non-contact power supply section LS for supplying electric power to the jaw pin sensor 30 in a non-contact manner is provided. In this case, although not shown in detail, the jaw pin sensor 30 is provided with, for example, a feeding antenna or the like in order to receive power in a non-contact manner.

  In an example here, the non-contact power supply unit LS has a supply communication antenna unit ST and an antenna control unit AC. Among the non-contact power supply sections LS, the supply communication antenna section ST performs communication with the jaw pin sensor 30 while supplying power to the jaw pin sensor 30 by non-contact. The antenna control unit AC is composed of a circuit board and the like, and is connected to the supply communication antenna unit ST so as to control the above operation of the supply communication antenna unit ST. And the power supply.

  The supply communication antenna unit ST extends along the moving direction of the jaw pin sensor 30, that is, along the extending direction of the operation can 10 and the switch adjuster rod 21. Thereby, the power supply to the jaw pin sensor 30 and the communication with the jaw pin sensor 30 are ensured during the switching operation of the switch 400 and before and after the switching operation.

  In the contactless power supply unit LS, the antenna control unit AC is responsible for transmitting power to the supply communication antenna unit ST. In addition to the above examples, for example, It is also conceivable to use a similar cable CB.

  Various modifications are conceivable for the configuration of the non-contact power supply section LS. For example, the supply communication antenna section ST is provided intermittently along the moving direction of the jaw pin sensor 30 or provided at both ends of the moving range. And so on. Further, by providing a charging facility on the jaw pin sensor 30 side, it may be possible to operate even when power supply by the non-contact power supply unit LS is not always performed.

  Further, a cover member (eave) CP that covers these around the operation can 10 and the switch adjuster rod 21 may be provided as described above and as illustrated. In this case, for example, it is conceivable to install the supply communication antenna unit ST along the inner surface of the cover member (eave) CP.

  Also in the present embodiment, by performing the measurement by the jaw pin sensor 30, it is possible to reliably measure the conversion force and the adhesion force, and to monitor whether or not the operation of the point machine is normal. Becomes possible. In the case of the present embodiment, for example, power can be supplied to the jaw pin sensor 30 during movement of the jaw pin sensor 30 by the non-contact power supply unit LS.

[Fifth Embodiment]
Hereinafter, an example of a turning machine and the like according to the fifth embodiment will be described with reference to FIG.

  The switch according to the present embodiment is a modified example of the switch illustrated in the first embodiment and the like. Regarding the switch sensor, a portion excluding a structure for power supply and communication connection is described. Are the same as those in the first embodiment and the like, so that the description of the entirety of the point machine will be omitted, and only the structure of different points will be described.

  FIG. 16 is a cross-sectional plan view conceptually showing a point machine 500 according to the present embodiment. As shown in the figure, in the present embodiment, an external power supply communication that is provided independently of the main body 500 </ b> A of the point machine 500 and performs communication connection for measurement results while supplying power to the jaw pin sensor 30. It differs from the other embodiments in that it has a unit EP.

  Specifically, the external power supply communication unit EP includes a solar cell LP and a charging wireless unit CW. The solar cell LP can supply power independently of the main body 500A (terminal board TB). The charging wireless unit CW is connected to the solar cell LP to charge the power from the solar cell LP, and is connected to the jaw pin sensor 30 to receive and receive the measurement result of the jaw pin sensor 30. And a wireless communication unit WL for communicating the information. In the above case, the solar cell LP is attached to the jaw pin sensor 30 via the charging wireless unit CW.

  As described above, first, the external power supply communication unit EP charges the electricity generated by the solar cell LP in the charging unit CH of the charging wireless unit CW. Further, the external power supply communication unit EP uses the electric power stored in the charging unit CH to supply necessary power to the jaw pin sensor 30 and communicates with the jaw pin sensor 30 to transmit the measurement result of the jaw pin sensor 30. The received information is transmitted from the wireless communication unit WL of the charging wireless unit CW to the outside. In the above embodiment, it is assumed that the measurement result of the jaw pin sensor 30 is transmitted to another device as raw data, but, for example, if sufficient power can be obtained in the charging wireless unit CW, It is also conceivable that the wireless charging unit CW can be provided with various arithmetic functions and display functions so that the wireless charging unit CW can perform the same function as the processing device 40 of the first embodiment.

  In addition, various places are conceivable for the installation location of the solar cell LP. For example, as shown in the figure, the solar cell LP is securely installed by being wound around or attached to the switch adjuster rod 21. In addition, it is possible to reliably secure power from sunlight. In addition, regarding the installation of the solar cell LP, in addition to the above, for example, a column supporting the solar cell LP may be inserted into the ground, and may be set up independently from each unit.

  As a device for enabling power supply independent of the main body of the switch, various devices can be used in addition to the device using sunlight, and for example, vibration of a train using a piezoelectric element can be used. It is also conceivable that the power is generated by using this as a power source.

  Also in the present embodiment, by performing the measurement by the jaw pin sensor 30, it is possible to reliably measure the conversion force and the adhesion force, and to monitor whether or not the operation of the point machine is normal. Becomes possible. Further, in the case of the present embodiment, the external power supply communication unit EP enables power supply and communication independent of the main body 500A of the switch 500. In this case, for example, it is easy to attach a new sensor or a monitor to the existing equipment of the switch. That is, by replacing the normal jaw pins installed in the existing point machine with the jaw pin sensor 30 and attaching the external power supply communication unit EP to the existing point machine from the outside, the point machine 500 can be operated. Can be configured.

[Others]
The present invention is not limited to the above embodiment, and can be implemented in various modes without departing from the gist of the invention.

  First, in the above description, the processing device 40 is provided inside the main body 100A. However, the present invention is not limited to this, and the processing device 40 or a part thereof may be provided in various places. For example, it is conceivable that the processing device 40 is provided in the head unit 30h and the display is performed on the upper surface of the head unit 30h.

  In addition, the display unit such as the display device 42 that performs a display operation is configured by a display monitor or the like using, for example, an LED. However, other than this, a display using a liquid crystal monitor or a display using an organic EL is also used. Various modes can be considered. In addition, various forms of the display unit are conceivable. For example, various operation states such as presence or absence of an abnormality may be indicated by a seven-segment display or the like. Also, in the event of an abnormality, a display mode for an alarm different from that in the normal state may be performed. In addition, not only an abnormal condition but also a normal condition can be displayed. For example, a numerical value can be displayed for the calculated conversion force and adhesion.

  In addition, various modes are conceivable for the installation location of the display device 42. For example, as illustrated as a hatched portion in FIG. 17, in addition to the case where the processing device 40 is provided, it is also possible to provide the processing device 40 or the display device 42 alone on the upper surface of the head unit 30 h as described above. Alternatively, the processing unit 40 may be separated from other members constituting the processing apparatus 40 and may be arranged at another location of the main body 100A. For example, it is conceivable that the display device 42 is arranged at a position in the main body 100A where a small window can be attached, and the display device 42 and the processing device 40 are connected by a cable or the like.

  In the above description, each threshold value is stored in advance in the storage unit ME of the arithmetic device 41, but the threshold value may be rewritable. For example, a threshold value to be stored in the storage unit ME may be provided by providing a switch operation unit on the display unit of the switch 100 or by enabling transmission from an external terminal such as a station device or a tablet terminal. Can be set.

  DESCRIPTION OF SYMBOLS 10 ... Operation can 10s ... Top surface, 20 ... Connection part, 21 ... Switch adjuster rod, 22, 23 ... Connection equipment, 30 ... Jaw pin sensor (Jaw pin with a sensor, a point sensor), 30a ... Body part, 30h ... head part, 40 ... processing unit, 41 ... arithmetic unit, 41a ... recording cycle variable unit, 42 ... display unit, 43 ... transmission unit, 50 ... point monitor, 100, 200, 300, 400, 500 ... unit 100 A, 200 A, 300 A, 400 A, 500 A: main body, AC: antenna control unit, AR1: bidirectional arrow, CB: cable, CH: charging unit, CN: wiring unit, CP: cover member (eave) , CV: recess, CW: wireless charging unit, DS: strain sensor, DT: groove, EP: external power supply communication unit, L1: full length, LL: lock canister, LP: solar cell, LS: non-contact Power supply unit, P: branch, PP: protective member, Q1: curve, R1: diameter, SB: shelf, SC: housing, SP, SP1, SP2: sleeper, SR: basic rail, SS: station equipment, ST: supply communication antenna section, SV: sleeve section, T1-T3: time zone, TA: terminal section, TB: terminal board, TR: tong rail, WL: wireless communication section, WS: drain plug, α: upper section, β ... lower

Claims (14)

  A switch sensor comprising a measuring unit for measuring a load of an operating can between an operating can of the operating machine and a connection unit connected to the operating can. The connection unit is a switch adjuster rod that transmits a force to move a rail by the operation rod,
2. The sensor according to claim 1, wherein the measurement unit is a jaw pin with a sensor that connects the operation rod and the switch adjuster rod. 3.   3. The measurement unit according to claim 1, wherein, as the operation load, at least one of a value related to a conversion force when a rail is converted and a value related to an adhesion force for bringing the rail into close contact with each other, 3. A point sensor according to any one of the preceding claims. A point sensor according to claim 3,
From a measurement result in the measurement unit, an arithmetic processing unit that calculates at least one of the conversion force and the adhesion force,
And a display unit for displaying a processing result in the arithmetic processing unit.   5. The switch monitor according to claim 4, wherein the arithmetic processing unit determines whether or not there is an abnormality based on a predetermined threshold based on a calculation result based on a measurement result of the measurement unit. 6.   The point monitor according to claim 4, wherein the arithmetic processing unit includes a recording cycle variable unit that changes a cycle of recording data of the measurement unit.   The switch monitor according to any one of claims 4 to 6, wherein the measurement unit includes a wiring unit that performs communication connection for outputting a measurement result while receiving power supply.   The switch monitor according to claim 7, further comprising a shelf supporting the wiring unit.   The monitor according to claim 7, wherein the wiring portion is housed in a groove provided in the operation can.   The switch monitor according to any one of claims 4 to 6, further comprising a non-contact power supply unit configured to supply power to the measurement unit in a non-contact manner.   The monitor according to claim 10, wherein the non-contact power supply unit is provided so as to extend along a moving direction of the measurement unit.   7. An external power supply communication unit which is provided independently of a main body of the switch and performs communication connection for measurement results while supplying power to the measurement unit. The switch monitor according to claim 1.   13. The point monitor according to claim 12, wherein the external power supply communication unit includes a solar cell attached to the connection unit. When it works,
A connection unit connected to the operation can,
A point machine comprising a point sensor having a measuring unit for measuring the operation can load between the operation can and the connection part.

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