JP6933512B2 - Railroad crossing controller relay output measuring device and railroad crossing controller control length measuring device - Google Patents

Description

The present invention relates to a relay output measuring device used when measuring the control section length of a railroad crossing controller, and a railroad crossing controller control length measuring device including the relay output measuring device and a rail short circuit.

As a railroad crossing control device that operates railroad crossing equipment such as a railroad crossing breaker and a railroad crossing alarm when a train passes a railroad crossing, for example, railroad crossing controllers arranged at both ends of a predetermined section across the railroad crossing control the train. Some railroad crossing equipment controls railroad crossing equipment according to changes in the voltage output when it is detected.
The railroad crossing controller has a train detection range, and a controller reaction relay installed near the railroad crossing due to a change in the voltage output by the railroad crossing controller when a train enters the train detection range of the railroad crossing controller. To start the railroad crossing alarm of the railroad crossing control device, the voltage output when the train advances from the train detection range of the railroad crossing controller returns to the original value, the relay finishes the operation, and the railroad crossing alarm ends. Is doing.

A railroad track controller that detects the approach or advance of a train is a type of track circuit, and a signal of 8.5 kHz to 10.5 kHz is applied to one rail, and the train exists within the train detection range of the railroad track controller. Occasionally, the train's axle short-circuits the track circuit of the crossing controller to form a closed circuit to detect the entry of a train into the train detection range or the advance of a train outside the train detection range. , It is configured to output the voltage that operates the relay installed near the railroad track. Specifically, when the train enters the train detection range of the railroad crossing controller (HC type) arranged at the start point of the predetermined section and the track circuit is short-circuited, the start point reaction relay is operated (relay contact is operated). Drop). In addition, when a train enters the train detection range of a railroad crossing controller (HO type) arranged at the end point of a predetermined section and the track circuit is short-circuited, the end point reaction relay operates in the opposite state (relay contact). It is configured to make the relay.

In a railroad crossing control device using a controller as described above, a predetermined distance (for example, 30 m) is defined for the width of the train detection range (hereinafter referred to as "control section length"), and the performance of the railroad crossing controller is improved. When it falls, the length of the control section becomes shorter and it becomes difficult to detect the train. Therefore, in order to prevent the railroad crossing controller from malfunctioning due to the deterioration of the train detection performance by the railroad crossing controller, inspection work is carried out to periodically measure the control section length of the railroad crossing controller. Such inspections are generally carried out by electric inspection vehicles, but are manually performed on routes where electric inspection vehicles do not travel. Further, even when the railroad crossing controller breaks down and is replaced, the work of measuring the control section length after the replacement is carried out, and this measurement is performed manually.

Conventionally, in the measurement work of the control section length, the track circuit of the railroad crossing controller is short-circuited by the railroad crossing controller by using a track circuit shorter that short-circuits the track circuit by short-circuiting between the two rails. The same state was created, and the control section length of the railroad crossing controller was measured by confirming the operation of the railroad crossing controller by sounding the railroad crossing alarm while moving the place where the two rails were short-circuited. In such a method of measuring the control section length, a person who operates a short circuit, a person who confirms a change in the output voltage of a railroad crossing controller, a person who stops the sound of a railroad crossing alarm operated by a change in the output voltage of the controller, and traffic There is a problem that many personnel such as personnel for organizing are required and the railroad crossing alarm sounds, which causes inconvenience to passers-by and neighboring residents.

Therefore, the control unit includes a distance measurement unit that emits light to measure the distance, a control unit that controls the distance measurement unit, and an input unit that inputs the detection state of the presence or absence of a train by the crossing controller to the control unit. When the detection status of the presence or absence of a train changes from no train to the presence of a train, the distance to the head of the train is measured by the distance measuring unit, and when this detection status changes from the presence of a train to the absence of a train, the distance to the tail of the train is reached. An invention relating to a railroad crossing control section length measuring device has been proposed in which a distance is measured by a distance measuring unit and a control section length is calculated from the two measured distances (see Patent Document 1).

In addition, a motion detecting means for detecting the detection state of the train by the railroad crossing controller, a time measuring means for measuring the time during which the railroad crossing controller is detecting the train based on the detection result detected by the motion detecting means, and a train. A railroad crossing including a speed measuring means for measuring the traveling speed of a railroad crossing and a control section length calculating means for calculating a control section length based on the time measured by the time measuring means and the traveling speed of a train measured by the speed measuring means. An invention relating to a control section length measuring system has also been proposed (see Patent Document 2).

Japanese Unexamined Patent Publication No. 2011-73645 Japanese Unexamined Patent Publication No. 2013-63678

However, in both the inventions of Patent Documents 1 and 2, the control section length of the railroad crossing controller is measured by using or running a train that is actually in operation. Therefore, it is not possible to carry out the work of measuring the control section length at midnight, and if there is a measurement error, it is necessary to wait until the next train passes, which increases wasted time. There are challenges.

The present invention has been made by paying attention to the above-mentioned problems, and an object of the present invention is to measure the control section length of a railroad crossing controller with a small number of personnel without being limited by a working time zone. It is an object of the present invention to provide a railroad crossing controller relay output measuring device and a railroad crossing controller control length measuring device which can be used.
Another object of the present invention is a relay output of a railroad crossing controller capable of measuring the length of each control section using the same device for both of the two types of railroad crossing controllers, the HC type and the HO type. It is an object of the present invention to provide a measuring device and a railroad crossing controller control length measuring device.

In order to solve the above problems, the present invention
Equipped with a terminal contact means that can be electrically connected to the external output terminal of the railroad crossing controller, and measures the control section length by the railroad crossing controller by monitoring the relay operating voltage output from the railroad crossing controller to the railroad crossing controller. It is a relay output measuring device for
A voltage measuring means connected to the terminal contacting means to measure the relay operating voltage, and a voltage measuring means.
A type determining means for determining whether a first type railroad crossing controller is connected or a second type railroad crossing controller is connected based on the voltage measured by the voltage measuring means is provided.
Depending on the determination result of the format determination means
When the railroad crossing controller of the first type is connected, the voltage is measured by the voltage measuring means in a state where a predetermined voltage at which the railroad crossing control device does not react is applied to the external output terminal.
When the second type railroad crossing controller is connected, the external output terminal is set to a low impedance state and the voltage is measured by the voltage measuring means.
The control section of the railroad crossing controller to be measured can be detected depending on whether the voltage measured by the voltage measuring means changes or does not change.

According to the relay output measuring device configured as described above, the change in the relay output (relay operating voltage) of the railroad crossing controller can be measured without reacting the relay of the railroad crossing control device. The control section length of the railroad crossing controller can be measured without limitation, and the relay outputs of the two types of railroad crossing controllers can be measured by one device. In addition, if there are two workers, a worker who short-circuits the rails with a short-circuiter on the track and a worker who operates the relay output measuring device and reads the measured value, the control section length of the railroad crossing controller should be grasped. Therefore, it is possible to measure the control section length of the railroad crossing controller with a small number of personnel.

Here, preferably, the wireless communication means is provided, and when the measurement start instruction is input, the measurement start command is transmitted by the wireless communication means, and the measurement start command is transmitted to the external output terminal according to the transmission timing of the measurement start command. A state in which a predetermined voltage is applied or the external output terminal is set to a low impedance state, and the voltage is measured by the voltage measuring means after a predetermined time.

According to such a configuration, since the measurement start command is transmitted by the wireless communication means, the worker who operates the short circuit in the orbit can know the timing of operating the short circuit from the received measurement start command. Further, the relay output measuring device applies a predetermined voltage to the external output terminal of the crossing controller or puts it in a low impedance state according to the transmission timing of the measurement start command, and measures the voltage by the voltage measuring means after a predetermined time. , It is possible to reliably measure the change in the relay output of the crossing controller in a short time without ringing the crossing.

Further, preferably, a communication determining means for determining the presence or absence of communication by the wireless communication means is provided, and the voltage measurement by the voltage measuring means is prohibited when communication is impossible or abnormal.
According to such a configuration, it is possible to prevent the relay output measuring device from starting the measurement of the relay output of the crossing controller by the voltage measuring means before the side of the short circuit is ready, thereby the control section length. Regarding the measurement, it is possible to prevent an erroneous measurement result from being obtained.

In addition, other inventions of this application
In a railroad crossing controller control length measuring device including a relay output measuring device for a railroad crossing controller having the above configuration and a rail shorting device capable of short-circuiting between rails in an alternating current manner.
The rail short circuit
A pair of rail contact means that can contact rails on the track,
An AC short-circuiting means that can AC-connect / cut off the pair of rail contact means,
A signal for determining whether an AC signal from a first-type railroad crossing controller is applied to the rail or an AC signal from a second-type railroad crossing controller is applied to the rail based on the voltage from the rail contact means. With a judgment means,
The AC short-circuiting means includes a first filter for passing an AC signal from the railroad crossing controller of the first type and a second filter for passing an AC signal from the railroad crossing controller of the second type.
Based on the determination result of the signal determination means, the first filter or the second filter is selectively operated so that a short-circuit state between rails can be generated.
According to the railroad crossing controller control length measuring device provided with the rail short-circuiter having the above configuration, the signals of the two types of railroad crossing controllers are automatically identified and one device is used for alternating current between the rails. Since a short circuit can be made, it is possible to avoid an ungenerated short circuit state due to an operator's operation error.

Here, preferably, the rail short-circuiter has a stretch pipe having the pair of rail contact means at both ends, an operation rod connected to an intermediate portion of the stretch pipe, and a measurement value display having a display unit and a calculation unit. Equipped with a vessel
A roller that can roll on the rail and a rotary encoder that operates in response to the rotation of the roller are mounted on one end of the extension pipe.
The measured value display is configured so that the moving distance calculated by the calculation unit based on the signal from the rotary encoder can be displayed on the display unit.
According to this configuration, since the moving distance of the rail short circuit is displayed on the display, it is not necessary to mark the rail and measure the distance later, and the control section length of the railroad crossing controller can be measured. It can be carried out efficiently.

Also, preferably, the display is provided with wireless communication means.
When the measurement start by the wireless communication means is received, a short-circuit state between the rails by the AC short-circuit means is generated after a predetermined time from the reception of the measurement start.
According to such a configuration, the relay output measuring device transmits a measurement start command, receives the measurement start command on the short circuit side, and measures the relay output of the crossing controller after a predetermined time, and the short circuit device moves between the rails. Since the measurement result can be obtained at the timing of short-circuiting, a series of measurement operations can be completed in a short time.

Further, preferably, the display is provided with a communication determining means for determining communication by the wireless communication means, and is configured to prohibit the generation of the short-circuited state when communication is impossible or abnormal.
With such a configuration, it is possible to prevent the shunter from short-circuiting the rails before the relay output measuring device is ready, which causes an erroneous measurement of the control section length. It is possible to prevent the measurement result from being obtained.

According to the present invention, a railroad crossing controller relay output measuring device and a railroad crossing controller control length measuring device that can measure the control section length of a railroad crossing controller with a small number of personnel without being restricted by a working time zone. Can be provided. In addition, the relay output measuring device and railroad crossing controller control length of the railroad crossing controller that can measure the control section length using the same device for both of the two types of railroad crossing controllers, HC type and HO type. There is an effect that a measuring device can be provided.

It is the schematic which showed the state of the control section length measurement by the control section length measuring apparatus (relay output measuring apparatus and rail short circuit device) of the railroad crossing controller which concerns on this invention. It is a block diagram which showed the structure of the measurement part of the relay output measuring device of the railroad crossing controller which constitutes the control section length measuring device of embodiment of this invention. It is a block diagram which showed the structure of the measurement value display of the rail short circuit which constitutes the control section length measuring apparatus of embodiment of this invention. (A) is a rear view showing the configuration of the terminal portion of the railroad crossing controller to which the control section length measuring device of the embodiment is connected, and (B) is an enlarged view showing the terminal contact jig. It is a waveform diagram for demonstrating the measurement principle of the control section length of the HC type railroad crossing controller in embodiment. It is a waveform diagram for demonstrating the measurement principle of the control section length of the HO type railroad crossing controller in embodiment. It is a front view which shows the structure of the whole rail short circuit which comprises the control section length measuring apparatus of embodiment of this invention. (A) and (B) are a plan view and a partial cross-sectional front view showing the structure of the rail contact fitting in the rail short circuit of the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the control section length measuring device according to the present invention is outside the HC type railroad crossing controller 40A or the HO type railroad crossing controller 40B, which are arranged at predetermined distances from the railroad crossing with the railroad crossing in between. It is composed of a relay output measuring device 10 connected to an output terminal and measuring a relay output signal, and a rail shorting device 20 capable of short-circuiting rails. The relay output of the HC type railroad crossing controller 40A and the HO type railroad crossing controller 40B is transmitted to the railroad crossing control device 60 installed near the railroad crossing via the cables 42A and 42B, and the internal relay is dropped or lifted. It works.

As will be described in detail later with reference to FIG. 7, the rail short-circuiter 20 is coupled to a pair of rolling portions that are movable on the rail, a pipe laid horizontally between the rolling portions, and an intermediate portion of the pipes. It is composed of a hand-pushing rod or the like, and the hand-pushing rod is provided with a measured value display having a short-circuit circuit and a display unit.
In the control section length measuring device of the present embodiment, the rail short-circuiter 20 is placed on the rail to short-circuit the rails while shifting the rails little by little, and the HC type railroad crossing controller 40A or the HO type railroad crossing control when the rails are short-circuited. The relay operating voltage output from the child 40B to the railroad crossing control device 60 is measured, and when the relay operating voltage changes, it is determined to be within the railroad crossing control section, and when the relay operating voltage does not change, it is determined to be outside the railroad crossing control section. Then, the points at both ends where the relay operating voltage starts to change with the controller in between are found, and the distance is measured as the control section length.

FIG. 2 shows a schematic configuration of an embodiment of the relay output measuring device 10, and FIG. 3 shows a schematic configuration of a measured value display of the rail short-circuiter 20.
As shown in FIG. 2, the relay output measuring device 10 of the present embodiment has a terminal contact jig 11 that comes into contact with the external output terminal of the crossing controller, and the terminal contact jig 11 via lead wires L1 and L2. A relay voltage measuring unit 12 that is connected to measure the relay operating voltage, an external power supply applying unit 14 that can be connected to the terminal contacting jig 11 via the switch 13A, and a terminal contacting jig 11 that can be connected to the terminal contacting jig 11 via the switch 13B. Relay voltage suppression unit 15, wireless communication unit 16 capable of communication by specific low power radio, display unit 17 such as a liquid crystal panel, and switches 13A and 13B are turned on and off, and the wireless communication unit 16 and display A control unit 18 including a CPU (microprocessor) that controls the unit 17 is provided.

Further, on the surface of the case of the relay output measuring device 10, an input for giving a measurement start command to the control unit 18 and designating the type (HC type or HO type) of the railroad crossing controller to be measured. Buttons B1 to B3 and a power-on switch (not shown) are provided. Input buttons B1 to B3 are buttons with a built-in lamp that lights up when operated. Further, a battery for supplying a power supply voltage to an internal circuit or a device is housed in the case of the relay output measuring device 10.
The power supply of the railroad crossing controller connected can be used as the "external power supply" of the external power supply application unit 14. Instead of the external power supply, a booster circuit may be provided inside and the voltage boosted by the booster circuit may be used.

As shown in FIG. 4A, the terminal contact jig 11 is attached to the external terminal block 41 on the back surface of the railroad crossing controller 40A (or 40B). The terminal contact jig 11 is held in parallel with the same interval as the interval between the two output terminals 41a and 41b that output the relay operating voltage among the terminals provided on the external terminal block 41 by the coil spring. It is provided with two pins urged outward (not shown), a holder block 11A for holding these pins and a coil spring, and a magnet (not shown) arranged on the side opposite to the protruding direction of the pins. When the tips of the two pins are brought into contact with the heads of the screws provided in the relay output terminals 41a and 41b (engaged with the holes provided in the heads), the pins and terminals are electrically connected. Is conducted to. At this time, the holder block is configured to be attracted to the screw by the magnetic force of the magnet.

In FIG. 4B, the portions marked with reference numerals 11a and 11b are portions provided with pins and coil springs that are in contact with the output terminals 41a and 41b, and are drawn from the relay output measuring device 10 here. The ends of the lead wires L1 and L2 (see FIG. 2) are inserted and electrically connected.
In FIG. 4A, the terminals marked with reference numerals 41c and 41d are AC power supply terminals, 41g and 41h are AC transmission signal output terminals for railroad crossing control, and terminals 41e and 41f are AC reception signals. It is an input terminal. Further, in the terminal contact jig 11, the pins of the terminal contact jig 11 are brought into contact with the relay output terminals 41a and 41b without disconnecting the cable from the external terminal block 41, and the measurement input terminal of the relay output measuring device 10 and electricity are supplied. It is possible to make it conductive.

As described above, the railroad crossing controller that is the measurement target for measuring the control section length includes an HC (closed circuit) type railroad crossing controller and an HO (open circuit) type railroad crossing controller. The HC type railroad crossing controller keeps the relay state in the railroad crossing control device "on state" at all times, and sets the relay state to "off state" when the train is within the train detection range of the railroad crossing controller. do. The HO type railroad crossing controller keeps the relay state off at all times, and turns the relay state on when the train is within the train detection range of the railroad crossing controller.

In the control section length measuring device of the present embodiment, the relay output measuring device 10 identifies whether the measurement target is an HC type railroad crossing controller or a HO type railroad crossing controller according to the setting of the measurer. Has a function.
Specifically, the relay output measuring device 10 measures the output voltage of the relay by the relay voltage measuring unit 12 when the terminal contact jig 11 comes into contact with the external output terminal of the crossing controller, and the output voltage is 1 V or less. If there is, it is determined that it is a HO type, and if it is 20 V or more, it is determined that it is an HC type.

Further, as shown in FIG. 2, the relay output measuring device 10 of the present embodiment has a voltage such as 3V via a resistor R1 such as 15 kΩ between the pair of lead wires L1 and L2 of the terminal contact jig 11. When measurement is performed with the terminal contact jig 11 disconnected from the external output terminal of the crossing controller, the relay voltage measuring unit 12 detects 3V, so that 3V is detected. If this happens, it can be determined that the contact is abnormal. On the other hand, when the terminal contact jig 11 is firmly in contact with the external output terminal of the railroad crossing controller, the voltage applied between the lead wires L1 and L2 from the constant voltage circuit 19 is 0V because the resistor R1 has a high resistance. Therefore, the correct voltage measurement of the external output of the railroad crossing controller can be performed.

FIG. 3 shows the configuration of the measured value display 23 provided on the rail short-circuiter 20. As shown in FIG. 3, the measured value display 23 is connected to a control unit 38 including a CPU and contact terminals 31A and 31B which are in contact with a pair of rails on the track, and is connected to a rail from an HC type railroad crossing controller. The HC voltage filter 32A that detects the voltage level of the signal output to the control unit 38 and inputs it to the control unit 38, and the HO that detects the voltage level of the signal output from the HO type railroad crossing controller to the rail and inputs it to the control unit 38. The voltage filter 32B, the HC short-circuit filter 34A that enables transmission of the signal output from the HC type railroad crossing controller to the rail, and the signal output from the HO type railroad crossing controller to the rail can be transmitted between the rails. The HO short-circuit filter 34B and the switches 33A and 33B connected between the contact terminals 31A and 31B and the short-circuit filters 34A and 34B are provided.

When the measurement start command is given, the switches 33A and 33B are turned on by the control unit 38 for a short time, for example, 0.1 second, depending on the type of measurement target.
Further, the measured value display 23 gives a measurement start command to the control unit 38 and sets the type (HC type or HO type) of the crossing controller to be measured, similarly to the relay output measuring device 10 of FIG. It includes input buttons B1 to B3 for designating, a power-on switch (not shown), a communication unit 36 by a specific low power radio, and a display unit 37 including a liquid crystal panel. Further, a signal from a rotary encoder 35 for measuring a moving distance provided on a rotation shaft of a roller rolling on one rail on an orbit is input to a control unit 38.

Further, on the surface of the case of the measured value display 23, the measured value display 23 is provided with a button B4 for inputting a command for clearing the measured distance data to 0. Input buttons B1 to B3 are buttons with a built-in lamp that lights up when operated. Further, a battery for supplying a power supply voltage to an internal circuit or a device is housed in the case of the measured value display 23. The rail short-circuiter 20 of the present embodiment is provided with an HC short-circuit filter 34A and a HO short-circuit filter 34B that short-circuit the rails in an alternating current manner. Often, a configuration without the short circuit filter 34A and the HO short circuit filter 34B is also possible.

Next, the principle of measuring the control section length of the railroad crossing controller using the relay output measuring device 10 and the rail short-circuiter 20 in the present embodiment will be described with reference to FIGS. 5 and 6. Note that FIG. 5 is for explaining the measurement principle of the control section length of the HC type railroad crossing controller, and FIG. 6 is for explaining the measurement principle of the control section length of the HO type railroad crossing controller.
The HC type railroad crossing controller normally maintains an output voltage of about 25V, and when a short circuit is used between rails in the control section (the same applies when a train enters the control section). As shown in FIG. 5A, the output voltage drops to 0V and the reaction relay drops while the train is in the control section (while short-circuited). Therefore, the relay output measuring device 10 transmits a measurement start command (command) to the rail short circuit device 20 at the start of measurement, and the backup voltage at a level such as 16V that the crossing control device does not detect by the external power supply application unit 14. Is applied to the output terminal of the relay operating voltage with which the terminal contact jig 11 is in contact for about 1 second.

Then, on the rail short-circuiter 20 side that has received the measurement start command, the switch 33A is turned on for 0.1 seconds only about 0.2 seconds after the measurement start timing, and the short-circuit state is passed so that the signal is passed through the short-circuit filter 34A. To generate. Then, the voltage of the relay output from the crossing controller becomes 0V, but the backup voltage is applied to the relay output terminals 41a and 41b by the external power supply application unit 14 of the relay output measuring device 10 at the start of measurement. Therefore, as shown in FIG. 5B, the reaction relay operates because the potential drops only to a level such as 16V for 0.1 seconds when the short-circuit state is generated on the rail short-circuiter 20 side. On the other hand, the relay voltage measuring unit 12 can detect this voltage drop.

Further, even if a short-circuit state is created on the rail short-circuiter 20 side, the voltage of the output terminal of the railroad crossing controller remains 25 V unless a signal is transmitted between the rails. Therefore, the relay output measuring device 10 monitors the voltage of the relay output terminal of the railroad crossing controller to determine whether or not a short-circuit state has occurred on the rail short-circuit device 20 side.
On the other hand, in the case of a HO type railroad crossing controller, the output voltage of the controller, which is normally 0V, reacts by changing the output voltage to 25V as shown in FIG. 6A due to a short circuit between the rails. The relay works. Therefore, the relay output measuring device 10 operates the relay voltage suppression unit 15 by transmitting a measurement start command (command) to the rail short circuit device 20 and turning on the switch 13B for about 1 second at the start of measurement, for example. By connecting a resistor such as 10Ω between the output terminals, the voltage of the relay output terminals 41a and 41b of the crossing controller is suppressed to a low potential such as 2V.

Then, on the rail short-circuiter 20 side that has received the measurement start command, the switch 33B is turned on for 0.1 seconds only about 0.2 seconds after the measurement start timing, and the short-circuit state is passed so that the signal is passed through the short-circuit filter 34B. To generate. Then, the voltage of the output terminal of the crossing controller becomes 25V, but since a resistor such as 10Ω is connected, a short-circuit state is generated on the rail short-circuiter 20 side as shown in FIG. 5 (B). Since the potential rises only to a level such as 2V for 0.1 seconds, the reaction relay does not operate, while the relay voltage measuring unit 12 can detect this voltage rise.

Further, even if a short-circuit state is created on the rail short-circuiter 20 side, the voltage of the output terminal of the railroad crossing controller remains 0V unless a signal is transmitted between the rails. Therefore, the relay output measuring device 10 monitors the voltage of the relay output terminal of the railroad crossing controller to determine whether or not a short-circuit state has occurred on the rail short-circuit device 20 side.
The relay output measuring device 10 displays the measured voltage of the relay output terminal of the controller on the display unit 37, and transmits the measured voltage to the measured value display 23. When the measured value display 23 receives the measured voltage, it displays it on the display unit 37.

Further, the relay output measuring device 10 wirelessly communicates with the measured value display 23 of the rail short-circuiter 20 at a predetermined cycle (for example, at intervals of 0.2 seconds), and the moving distance data measured from the measured value display 23 is obtained. Since it is transmitted, the received travel distance is displayed on the display unit 17. As a result, the control section length can be grasped on the relay output measuring device 10 side. On the other hand, when communication with the measured value display 23 cannot be performed, an error is displayed and the measurement process is prohibited. This makes it possible to avoid displaying erroneous measured values.

Further, in the control section length measuring device of the present embodiment, the measured value includes an input button B1 for giving a measurement start command to the rail short circuit device 20 side and input buttons B2 and B3 for designating a controller to be measured. Since the display 23 is provided, the measurement of the control section length can be performed even if the measurement start command is given on the rail short-circuiter 20 side.
Specifically, when the input button B2 or B3 of the measured value display 23 is pressed to specify the type of the crossing controller to be measured, the wireless communication unit 36 communicates with the relay output measuring device 10 and the relay output measuring device 10 is used. Displays an error when it receives data notifying that it is not connected to the crossing controller or that it is connected to a crossing controller of a format different from the specified format.

Further, when the input button B1 is pressed while the relay output measuring device 10 is connected to the controller of the specified type, the measurement start command is transmitted to the relay output measuring device 10 by wireless communication, and the measurement start command is determined from the start timing. After a period of time, the short circuit filter 34A or 34B is operated to bring the rails into an AC short circuit state. Here, the reason why the AC short-circuit state is generated by the filter 34A or 34B is to prevent the track circuit from passing the signal of the track circuit and erroneously determining that the track circuit is on the train line. In the description of this embodiment, "short circuit" means an AC short circuit.

On the other hand, on the relay output measuring device 10 side, when the measurement start command is received, the external power supply applying unit 14 or the relay voltage suppressing unit 15 is operated according to the type of the connected controller. Then, after a predetermined time from the start timing, the voltage of the relay output terminal of the controller is measured, the measured value is displayed on the display unit 17, and the measured voltage is transmitted to the measured value display 23. When the measured value display 23 receives the measured voltage, it displays it on the display unit 17. Further, the measured value display 23 displays the moving distance of the rail short-circuiter 20 at that time on the display unit 37.
Therefore, the control section length can be grasped on the measured value display 23 side as well. However, the measured value display 23 also displays an error and prohibits the short-circuit operation when the communication with the relay output measuring device 10 cannot be performed.

Next, a configuration example of the rail short-circuiter 20 will be described with reference to FIG. 7.
As shown in FIG. 7, the rail short-circuiter 20 in the present embodiment is coupled to a telescopic operation rod 21 having an operation handle (handle bar) 21a at the upper end and a lower end of the operation rod 21 and extends in the left-right horizontal direction. The extension pipes 22A and 22B, the measurement value display 23 having the circuit and device configured as shown in FIG. 3 and mounted on the lower part of the operation rod 21, and the lower surfaces of both ends of the extension pipe 22 around the horizontal axis. It is mounted on the rotatably attached rollers 24A, 24B and rail contact fittings 25A, 25B, and the support frame of the roller 24A provided at one end of the extension pipe 22, and detects the rotation angle of the roller rotation shaft. A rotary encoder 26 is provided. As a result, the control unit 38 of the measured value display 23 can calculate the moving distance of the rail short circuit 20 based on the signal from the rotary encoder 26 and display it on the display unit 37 of the measured value display 23. It is configured in.

Further, the rail short-circuiter 20 in the present embodiment uses a pair of cables 27A and 27B for electrically connecting the rail contact fittings 25A and 25B and the measured value display 23, and the signal of the rotary encoder 26 for the measured value display 23. A cable 27C for transmitting to is provided.
The extension pipes 22A and 22B are rotatably connected to the lower end of the operation rod 21 via a folding hinge 28, and between the intermediate point of the extension pipes 22A and 22B and the operation rod 21. The brace pipes 29A and 29B are provided, and the brace pipes 22A and 22B are folded by bending the brace pipes 29A and 29B inward and rotating the extension pipes 22A and 22B 90 degrees toward the operation rod 21. Is configured to allow

FIG. 8 shows a specific structure of the rail contact fittings 25A and 25B. Of these, (A) is a plan view and (B) is a side view.
As shown in FIG. 8, the rail contact fittings 25A and 25B have a cylindrical holder block 51 having a flange portion, six contacts 52 held by the holder block 51, and each contact 52 downward. It includes six coil springs 53 for urging and a magnet 55 fixed by screws 54 to a portion surrounded by six contacts 52 inside the holder block 51.

The magnet 55 protrudes slightly downward from the lower surface of the holder block 51, and the contact 52 is attached to the holder block 51 so that the tip (lower end) protrudes further downward from the lower surface of the magnet 55. The rail contact fittings 25A and 25B are attached to both ends of the extension pipes 22A and 22B so that the lower surface of the magnet 55 is at the same height as the lower ends of the rollers 24A and 24B at the tips of the extension pipes 22A and 22B. As a result, both ends of the extension pipes 22A and 22B are attracted to the upper surface of the rail. Reference numeral 56 is a screw for fixing the rail contact receiving plate.

Further, as shown in FIG. 8B, the upper ends of the six contacts 52 project upward from the upper surface of the holder block 51, and the upper ends of the respective contacts 52 are shown in FIG. 8A. As described above, the ends of the short-circuit wire 57 made of a stranded wire or the like are coupled to each other to achieve electrical conduction, so that the resistance of the contact fitting as a whole is reduced. In FIG. 8B, the short-circuit line 57 is not shown.

With the above configuration, when the rail contact fittings 25A and 25B are placed on the rail, they are firmly attracted to the upper surface of the rail by the magnetic force of the magnet 55, and the tip of the contact 52 is attached to the upper surface of the rail. It abuts and allows an electrical short circuit between the rails. Further, since each of the six contacts 52 is urged downward by the coil spring 53, even if the upper surface of the rail has irregularities due to wear, the height changes following the irregularities to provide a sufficient contact state. Is now available.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. For example, in the above embodiment, it has been described that the measurement is started by operating the measurement start button provided on the measurement value display 23 of the relay output measuring device 10 or the rail short circuit device 20. On the rail short-circuiter 20 side, a switch may be provided at the upper end of the operation rod 21 or the operation handle 21a so that the measurement is started when the switch is turned on.
Further, in the above embodiment, it has been described that the rails are short-circuited 0.2 seconds after the measurement start button is operated, but the time from the measurement start timing to the rail-to-rail short circuit takes into account the delay time due to communication. It may be set as follows.
Further, in the above embodiment, the one in which one relay output measuring device 10 can measure the control section lengths of two types of railroad crossing controllers, the HC type railroad crossing controller and the HO type railroad crossing controller, has been described. , It may be configured as a separate device for measuring the control section length of each railroad crossing controller.

10 Relay output measuring device 20 Rail short circuit device 23 Measured value display 24A, 24B Roller 25A, 25B Rail contact metal fittings 34A, 34B Short circuit filter (AC short circuit means)
35 Rotary encoder 40A, 40B Railroad crossing controller

Claims (7)

Equipped with a terminal contact means that can be electrically connected to the external output terminal of the railroad crossing controller, and measures the control section length by the railroad crossing controller by monitoring the relay operating voltage output from the railroad crossing controller to the railroad crossing controller. It is a relay output measuring device for
A voltage measuring means connected to the terminal contacting means to measure the relay operating voltage, and a voltage measuring means.
A type determining means for determining whether a first type railroad crossing controller is connected or a second type railroad crossing controller is connected based on the voltage measured by the voltage measuring means is provided.
Depending on the determination result of the format determination means
When the railroad crossing controller of the first type is connected, the voltage is measured by the voltage measuring means in a state where a predetermined voltage at which the railroad crossing control device does not react is applied to the external output terminal.
When the second type railroad crossing controller is connected, the external output terminal is set to a low impedance state and the voltage is measured by the voltage measuring means.
A relay output measuring device for a railroad crossing controller, characterized in that the control section of the railroad crossing controller to be measured can be detected depending on whether the voltage measured by the voltage measuring means changes or does not change. A wireless communication means is provided, and when a measurement start instruction is input, the measurement start command is transmitted by the wireless communication means, and the predetermined voltage is applied to the external output terminal according to the transmission timing of the measurement start command. The relay output measuring device for a railroad crossing controller according to claim 1, wherein the state or the external output terminal is set to a low impedance state, and the voltage is measured by the voltage measuring means after a predetermined time. The crossing control according to claim 2, further comprising a communication determining means for determining the presence or absence of communication by the wireless communication means, and prohibiting voltage measurement by the voltage measuring means when communication is impossible or abnormal. Child relay output measuring device. A railroad crossing controller control length measuring device comprising the relay output measuring device for a railroad crossing controller according to any one of claims 1 to 3 and a rail shorting device capable of short-circuiting between rails in an alternating current manner.
The rail short circuit
A pair of rail contact means that can contact rails on the track,
An AC short-circuiting means that can AC-connect / cut off the pair of rail contact means,
A signal for determining whether an AC signal from a first-type railroad crossing controller is applied to the rail or an AC signal from a second-type railroad crossing controller is applied to the rail based on the voltage from the rail contact means. With a judgment means,
The AC short-circuiting means includes a first filter for passing an AC signal from the railroad crossing controller of the first type and a second filter for passing an AC signal from the railroad crossing controller of the second type.
Railroad crossing controller control length measurement characterized in that the first filter or the second filter is selectively operated based on the determination result of the signal determination means to generate a short-circuit state between rails. Device. The rail short-circuiter includes an extension pipe having the pair of rail contact means at both ends, an operation rod connected to an intermediate portion of the extension pipe, and a measured value indicator having a display unit and a calculation unit.
A roller that can roll on the rail and a rotary encoder that operates in response to the rotation of the roller are mounted on one end of the extension pipe.
The railroad crossing control according to claim 4, wherein the measured value display is configured so that the moving distance calculated by the calculation unit based on the signal from the rotary encoder can be displayed on the display unit. Child control length measuring device. The measured value display includes wireless communication means.
The railroad crossing controller control according to claim 5 , wherein when the measurement start by the wireless communication means is received, a short-circuit state between the rails by the AC short-circuit means is generated after a predetermined time from the reception of the measurement start. Length measuring device. The measured value display according to claim 6, further comprising a communication determining means for determining communication by the wireless communication means, and prohibiting the generation of the short-circuited state when communication is impossible or abnormal. Railroad crossing controller control length measuring device.

Images