JP2016078741A - Light emission machine control device for rail, and light emission machine control system for rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent error detection of disconnection at the time of output change-over.SOLUTION: When a light emission command for visual confirmation is inputted, a relay 93-a is switched ON, and continuously, a relay 94-a is switched ON. Then, a relay contact 94-b-3 of a bypass circuit is connected, and an output of a reverse current from a red light emission control part 82 is bypassed. Thereafter, relay contacts 96-b-1 and 96-b-2 are changed over, and a signal is outputted from a light emission control part 83 for visual confirmation. Upon the light emission command for visual confirmation is terminated, the relay 93-a is switched OFF, the relay contact 93-b-2 is opened and a relay 96-a is switched OFF, and the relay contacts 96-b-1 and 96-b-2 are changed over so that a signal from the red light emission control part 82 is outputted. However, the relay 94-a is not switched OFF during discharging of a CR circuit 95, the relay 94-a is switched OFF after termination of electrical discharging, and the relay contact 94-b-3 is opened, whereby a signal from the red light emission control part 82 is outputted.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a railway light emitter control device and a railway light emitter control system.

  Railway light emitters such as special signal light emitters, railway traffic lights, cues, and signs transmit the current indication (representing signals and instructions) to train operators by turning on or off the colored lights. Device. The current indication is transmitted by the train operator by visually confirming the lighting or extinction of the color lights of railway light emitters such as special signal light emitters, railway traffic lights, signal devices, or signs. If the driver overlooks the signal, it is dangerous because the indication is not transmitted correctly. Moreover, special light emitters, railway traffic lights, cues, and railway light emitters such as signs are built beside the track, so there is a problem that the installation location is limited.

  Even now, it is still possible for a train operator to visually check current information on lighting or extinguishing of color lights of special light emitters, railway traffic lights, cues, or signs, etc. It is an indispensable information transmission method for train operation. For that reason, special light emitters, railway traffic lights, cues, and signs such as signposts that convey the indications to the train driver, etc. It must be erected so that the direction of light emission of the colored lamp is in an appropriate direction so that it can be visually recognized. In addition, there must be no obstacles such as trees that block light on the optical path connecting the railway light emitting device such as the special signal light emitting device, the railway traffic signal, the signal device, or the sign and the viewing point. In addition, if the optical path is unavoidably blocked by some kind of obstacle, railway light emission such as a special signal light emitter for relay, a traffic light for railway, a signal device, or a sign for relaying information such as indications We are taking measures such as installing more machines.

  For this purpose, it is important to confirm that the special approvals for railroad light emitters such as special signal light emitters, railway traffic lights, cues, and signs are properly secured. It is carried out manually by placing workers at each of the building and viewing points of railway light emitting devices such as railway traffic lights, signal devices, or signs. Workers at the planting point look at the direction of the viewing point from the viewing approval confirmation peepholes attached to special light emitters, railway traffic lights, cues, or signage or other railway light emitters. Adjust the approximate angle of the light emission direction. After that, if the worker at the viewing point can visually check the lighting or extinction of the color light of the special light emitter, railway traffic light, signal device, or sign, etc., the special signal light emitter, railway Confirm that the approval of viewing permission for light emitting devices for railways such as traffic lights, signals, or signs is acceptable. If it was not visible, it can be said that the visual approval of railway light emitters such as special signal light emitters, railway traffic lights, signal devices, or signs is no, so check whether there are obstacles on the optical path, Remove it if it exists. If there are no obstacles, contact the workers at the planting site with a mobile phone or radio, etc., and adjust the light emission direction of special light emitters, railway traffic lights, cues, or signs, etc. To do. The adjustment of the light emission direction is performed by a worker at the planting point performing fine adjustment while looking into the direction of the visual recognition point from the peephole or by visual confirmation from the visual confirmation viewpoint. Confirmation of the visual approval of railway light emitters such as special signal light emitters, railway traffic lights, cues, and signs so far involves such manual work and visual confirmation by workers. There is a problem that work efficiency is poor.

  Therefore, in order to prevent the train driver from being affected, there is no need to actually turn on or extinguish the traffic light etc. without using special signal light emitters, railway traffic lights, cues, or signs. An infrared light emitter that is attached to a railway light emitter, such as a special signal light emitter, a railway traffic light, a signal device, or a sign, and that emits a confirmation bit pattern infrared light, There is a technique for determining the identity between a light emission pattern obtained by image processing of an image captured by an infrared video camera and a bit pattern for confirmation using an infrared video camera that captures the infrared light emission (for example, a patent) Reference 1).

  Further, in the case of using the technique described in Patent Document 1 described above, the target railway traffic signal, signal device, or signal from among a plurality of adjacent traffic signal signals, signal devices, or signs and other noise components, There is a technology that enables confirmation of whether or not a sign is approved for viewing (for example, Patent Document 2).

Japanese Patent No. 4925987 JP 2010-173597 A

  As shown in FIG. 1, the apparatus for confirming whether or not a railway traffic signal is approved for viewing described in Patent Document 1 and Patent Document 2 is configured so that the visual distance of the railway traffic signal 4 installed in the vicinity of the track 5 is It is a device that automatically confirms with the confirmation device 1. The viewing point A is a predetermined viewing distance from the building point B of the railway traffic signal 4, that is, a point on the track 5 that is 600 m or 800 m away. The confirmation device 1 detects the infrared rays 3 blinking in a predetermined pattern of the infrared light emitters 2 attached to the railway traffic signal 4 and confirms whether or not the visual approval is permitted. The confirmation device 1 is a portable type, and the worker holds the confirmation device 1 at the visual recognition point A and performs confirmation work. Alternatively, the confirmation device 1 is mounted on a test train, and the test train is temporarily stopped at the viewing point A, and an operator operates the confirmation device 1 to perform confirmation work.

  FIG. 2 is a block diagram showing the configuration of the confirmation device 1 and the infrared emitter 2. The confirmation device 1 includes an infrared video camera 11, an A / D conversion unit 12, and an image data storage unit 13. The confirmation device 1 further includes an image processing unit that performs image processing on the image data stored in the image data storage unit 13 and determines whether the railroad traffic signal is approved for viewing. The image processing unit includes a control unit 14 that performs arithmetic control according to a program, an input unit 15 that inputs various data, a setting unit 16 that performs various settings for arithmetic control, and a program storage unit 17 that stores an arithmetic control program. The data storage unit 18 stores various data and the display unit 19 such as a liquid crystal display panel.

  The infrared light emitter 2 is a device that generates infrared light emission 3 of a predetermined confirmation bit pattern, generates an infrared light emitting element 21 such as a highly directional infrared LED, and a predetermined confirmation bit pattern signal. The pattern signal generating circuit 22 is configured to cause the infrared light emitting element 21 to flash and emit light according to the signal. Although not shown, the pattern signal generation circuit 22 includes a storage unit that stores an ID blinking pattern and a calculation control program, and a control unit that performs calculation processing according to the calculation control program.

  By using the technology described in Patent Document 1, an infrared light emitter that is attached to a railway traffic signal, a signal device, or a sign and that emits infrared light of a confirmation bit pattern, and photographs the infrared light emission at a viewing point By using an infrared video camera, it is possible to determine the identity between a light emission pattern obtained by performing image processing on an image captured by the infrared video camera and a confirmation bit pattern. In addition, by using the technique described in Patent Document 2, confirmation of whether or not the target railway traffic signal is approved from among a plurality of adjacent railway traffic signals and other noise components can be performed at a viewing point, daytime, etc. It is possible to confirm whether the target railway traffic signal is approved or not from a plurality of adjacent railway traffic signals or other noise components at the viewing point even in a generally bright situation or a dark situation such as evening.

  Conventional railway traffic lights 4 and railway light emitters such as special signal light emitters control railway light emitters 4 such as railway traffic lights 4 and special signal light emitters that are housed in an instrument box near the railroad crossing. It is constructed by connecting with a controller for doing so with a pair of cables. The cable is housed in a signal trough. A signal trough is an elongate bowl-shaped track housing material made of concrete, ceramics, or FRP (Fiber Reinforced Plastics) that is laid along the track to store electrical wires. To protect the cable, it cannot be moved easily.

  For example, in order to confirm the visibility of the railway traffic signal 4 described in Patent Literature 1 or Patent Literature 2, an infrared light emitter is provided in the vicinity of the railway traffic signal 4 (for example, an upper portion of the railway traffic signal 4 as shown in FIG. 1). 2 and a controller for the infrared light emitter 2 is added to the instrument box, or a new signal light emitter having both functions of the railroad traffic light 4 and the infrared light emitter 2 is constructed in place of the railroad traffic light 4 In addition to planting, it is necessary to install a controller for controlling the signal light emitter instead of the controller for controlling the railway traffic signal 4 housed in the instrument box.

  When an infrared light emitting device 2 and a controller for the infrared light emitting device 2 are additionally installed to a control system for controlling a light emitting device for a railroad such as a current railway light signal device or a special signal light emitting device, the infrared light emitting device 2 And a cable for connecting the controller for the infrared light emitter 2 need to be newly laid. In addition to the current railway traffic lights, special signal light emitters, and other control systems that control railway light emitters, the new railway light trains replace the current railway traffic lights 4 and special signal light emitters. When installing a controller to control a new railway light emitter in place of a controller to control the current railway light emitter, when building a light emitter, emit a railway signal or stop indication light emission. It was necessary to re-lay two or more pairs of cables for transmitting a conventional signal for commanding and a new signal for emitting infrared rays.

  Cable facility construction is difficult to automate and is still performed manually by people. Further, in order to newly lay or re-lay the cable, it is necessary to once open and close the lid of the signal trough, which is a time-consuming work. That is, the cable facility construction is very expensive.

  Further, the normal operation of the railway traffic light 4 and the special signal light emitter is very important for ensuring security, and it is indispensable to accurately detect the disconnection of the cable.

  Therefore, the present invention solves the above-described problem, that is, when adding a function for confirming whether or not a railway light-emitting device is approved for viewing to the existing special signal light-emitting controller and special signal light-emitting device, It is possible to provide a railway light-emitting device control device, a railway light-emitting device, a railway light-emitting device control system, and a visual confirmation system that can be used as they are and can accurately detect disconnection. Objective.

  In order to solve the above-described problem, the first aspect of the railway light-emitting device controller according to the present invention outputs the first signal for controlling the lighting of the first light-emitting unit and does not output the first signal. In this case, the first light emission control means for performing the disconnection detection process based on whether or not the current in the direction opposite to that of the first signal flows through the cable and the railway light emitting device is opposite to the first signal. A second light emission control means for generating and outputting a second signal for controlling the lighting of the second light emitting unit, which is distinguishable from the current for performing the disconnection detection process, and a cable in a direction Switching means for switching the signal supplied to the railway light-emitting device via the first signal from the first light emission control means and the second signal output from the second light emission control means; The current in the direction opposite to that of the first signal output by the first light emission control means is And a bypass circuit that bypasses the power supply so that the signal is supplied from the first signal to the second light emitting device via the cable after the bypass circuit is in the connected state. And the bypass circuit is disconnected after the signal supplied to the railway light-emitting device via the cable is switched from the second signal to the first signal by the switching means. To do.

  According to another aspect of the railroad light emitter control device of the present invention, the first relay that is turned on by the input of a signal commanding the operation of the second light emission control means and electrically connects the corresponding contacts, A first relay of one relay that is turned on by being electrically connected, and a second relay that electrically connects the corresponding contact; a CR circuit that is connected in parallel to the second relay; A third relay that is turned on when the second contact of the first relay is electrically connected and that the first contact of the second relay is electrically connected, and switches the corresponding contact. The bypass circuit bypasses the current in the direction opposite to the first signal when the second contact of the second relay is connected, and the switching means is configured by the contact of the third relay. It is characterized by that.

  A first aspect of the railway light emitting device control system according to the present invention is the first light emitting means in which the railway light emitting device emits light based on the current in the first direction, and the second direction different from the first direction. Current passing means for passing a current in a direction, selection means for selectively passing a current in a second direction that meets a predetermined condition, and current in a second direction selectively passed by the selecting means. And a second light emitting means that emits light that is distinguishable from the light emitted by the first light emitting means, and the railway light emitting device control device outputs a first signal for controlling lighting of the first light emitting means to the first light emitting means. If the first signal is not output, the first light emission that performs disconnection detection processing based on whether or not the current in the direction 2 flows to the cable and the railroad light emitter is output. The control means and the current in the second direction, and the disconnection detection processing is performed. A second light emission control means for generating and outputting a second signal for controlling the lighting of the second light emitting means, which can be distinguished from the current for the current, and a signal supplied to the railway light emitter via the cable Switching means for switching between the first signal output from the first light emission control means and the second signal output from the second light emission control means, and the first light output from the first light emission control means. And a bypass circuit that bypasses the current in the direction opposite to that of the signal of 1, and after the bypass circuit is in a connected state, the signal supplied to the railway light-emitting device via the cable by the switching means The signal is switched from the first signal to the second signal, and the signal supplied to the railway light-emitting device via the cable is switched from the second signal to the first signal by the switching means. circuit Characterized by comprising a cutting state.

  According to another aspect of the railroad light emitter control system of the present invention, the first relay that is turned on by the input of a signal that commands the operation of the second light emission control means and electrically connects the corresponding contacts, A first relay of one relay that is turned on by being electrically connected, and a second relay that electrically connects the corresponding contact; a CR circuit that is connected in parallel to the second relay; A third relay that is turned on when the second contact of the first relay is electrically connected and that the first contact of the second relay is electrically connected, and switches the corresponding contact. The bypass circuit bypasses the current in the direction opposite to the first signal when the second contact of the second relay is connected, and the switching means is configured by the contact of the third relay. It is characterized by that.

  According to the present invention, it is possible to use an existing cable as it is when adding a function for confirming whether or not to permit the visual approval of a railway light emitting device to the special signal light emitting device controller and the special signal light emitting device, Does not cause erroneous disconnection detection when switching output signals.

It is a figure for demonstrating the conventional confirmation apparatus and infrared rays light-emitting device. It is a figure for demonstrating the conventional confirmation apparatus and infrared rays light-emitting device. It is a figure which shows the external appearance structure of the controller for special signal light emitters. It is a figure which shows the external appearance structure of the special signal light-emitting device which has only the function of red light emission. It is a figure for demonstrating the special signal light-emitting device which has only the function of red light emission, and the controller for special signal light-emitting devices. It is a figure for demonstrating the special signal light-emitting device which has only the function of red light emission, and the controller for special signal light-emitting devices. It is a figure for demonstrating the special signal light-emitting device control system to which the function which confirms the visual approval permission of a special signal light-emitting device was added. It is a figure for demonstrating the controller for special signal light emitters. It is a figure for demonstrating especially the signal light emitter to which the function which confirms the visual approval disapproval of a special signal light emitter was added. It is a figure for demonstrating the operation timing of the relay of the controller for special signal light emitters. It is a figure for demonstrating the controller for signal light emitters and special signal light emitters which made it possible to distinguish a signal for detecting disconnection and a signal for causing a light emitting element to emit light based on a voltage value. It is a figure for demonstrating especially the controller for signal light emitters and special signal light emitters which enabled it to distinguish the signal for disconnection detection, and the signal for making a light emitting element light-emit based on a frequency. It is a figure for demonstrating especially the controller for signal light emitters and special signal light emitters which enabled it to distinguish the signal for disconnection detection, and the signal for making a light emitting element light-emit based on a frequency. It is a figure for demonstrating the example of a different structure of the signal light transmitter with which the function which confirms the visual approval approval of a special signal light emitter was added, and the controller for special signal light emitters. It is a figure for demonstrating the example of an external appearance structure of the especially signal light emitter to which the function which confirms the visual approval approval of a special signal light emitter was added. It is a figure for demonstrating the example of a different structure of the signal light transmitter with which the function which confirms the visual approval approval of a special signal light emitter was added, and the controller for special signal light emitters. It is a figure for demonstrating the example of an external appearance structure of the especially signal light emitter to which the function which confirms the visual approval approval of a special signal light emitter was added. It is a flowchart for demonstrating the signal inspection process of a confirmation apparatus.

  Hereinafter, a railroad light emitter control system according to an embodiment of the present invention will be described with reference to FIGS. The railway light-emitting device refers to various light-emitting devices that emit light for a railway signal or stop indication, such as a special signal light-emitting device, a railway signal device, a signal device, or a sign.

  Here, a special signal light emitter control system capable of confirming the visibility of a special signal light emitter that transmits information such as an abnormality occurring at a railroad crossing to a driver or the like will be described as an example. The special signal light emitting device that informs the driver, etc., that an abnormality has occurred at a railroad crossing, etc., is not lit when there is no abnormality, etc., and informs the driver, etc., that an abnormality has occurred. Only when it is turned on or flashing with light that can be confirmed by the driver (for example, red light emission).

  The special signal light emitters are located at a position where the light emission state of the special signal light emitter can be confirmed from any distance within a predetermined first distance (for example, 800 m) referred to as a viewing distance from each level crossing. Must be installed. In addition, when each special signal light emitter is provided with a relay, the relay special signal light emitter for multiple railroad crossings may be used in common, but sharing is prohibited for special signal light emitters that are not relays. Therefore, a different special signal light emitter must be used for each level crossing.

  Therefore, when a plurality of level crossings are close to each other, special signal light emitters for indicating the state of each level crossing are also set close to each other. In particular, when a plurality of level crossings are close and there is a sharp curve, the light emission state of the special signal light emitter can be confirmed from any distance within a predetermined first distance (for example, 800 m). In order to do so, it is necessary to install many special signal light emitters close to each other in order to indicate the state of each of the plurality of level crossings.

  The special signal light emitting device has a controller 31 for special signal light emitters whose appearance is shown in FIG. 3 (in FIG. 3, a controller 31-1 for special signal light emitters and a controller for special signal light emitting devices having different external shapes). 31-2) and a special signal light emitter 41 whose appearance is shown in FIG. Here, the special signal light-emitting device 41 is a blinking type, and the LED 45 arranged on the front surface of the special signal light-emitting device 41 emits red light and blinks, thereby transmitting information such as an abnormality occurring at a railroad crossing to a driver or the like. As shown in FIG. 5, the special signal light emitter controller 31 is installed in an instrument box 51 installed in the vicinity of the railroad crossing, and the special signal light emitter 41 is several meters to several hundred meters away from the instrument box 51. It is installed at a predetermined point.

  A special signal light emitter controller 31 and a special signal light emitter 41 for transmitting information such as a conventional abnormality such as a railroad crossing to a driver or the like are connected by a pair of cables 52. The circuit configuration diagram is shown in FIG. When an abnormality or the like occurs at a crossing or the like and the LED 45 of the special signal light emitter emits red light, a current flows as shown by a solid line in FIG. In a steady state, a current flows through a reverse circuit as shown by a dotted line through the diode 61 and the cable 52 is checked for disconnection.

  In order to confirm that the driver can surely recognize that the LED 45 of the special signal light emitting device emits red light, the control for the special signal light emitting device described with reference to FIGS. 5 and 6 is used. It is necessary to add a function equivalent to the device for confirming whether or not to permit visual inspection of the railway traffic signal described in Patent Document 1 or Patent Document 2 described with reference to FIGS. . At this time, if a new cable is laid or re-laid, it takes a lot of time and cost.

  Next, referring to FIG. 7, the special signal light emitter controller 31 and the special signal light emitter 41 described with reference to FIGS. 5 and 6 are described in Patent Document 1 described with reference to FIGS. A special signal light emitter control system capable of using the cable 52 as it is when adding the function of the device for confirming whether or not the visual approval of the railway traffic signal is described will be described.

  In this special signal light emitter control system, a special signal light emitter controller 71 is provided in an instrument box 51 installed in the vicinity of a railroad crossing, and is specially placed at a predetermined position several meters to several hundred meters away from the instrument box 51. At least one signal light emitter 72 and, in many cases, a plurality of signal light emitters 72 are installed. The controller 71 for special signal light emitter emits the LED 45 in red as described with reference to FIG. 6 to one or a plurality of special signal light emitters 72 connected via a pair of cables 52. In addition to sending out a signal for making it happen, disconnection detection is always performed. Furthermore, the controller 71 for special signal light emitters confirms the approval or disapproval of the visual recognition to one or a plurality of special signal light emitters 72 connected via a pair of cables 52, such as infrared rays. A signal is generated to generate invisible light or visible light that is not likely to be misidentified by the crew. The special signal light emitter 72 has the function of the infrared light emitter 2 described with reference to FIGS. 1 and 2 in addition to the function of causing the LED 45 to flash and emit red light as described with reference to FIGS. 5 and 6. Also have.

  When inspecting and confirming whether or not the special signal light emitter 72 is approved for viewing, the special signal light emitter controller 71 misidentifies one or more connected special signal light emitters 72 by invisible light such as infrared rays or by crew members. By using visible light that is not likely to occur, each pattern is blinked in a distinguishable pattern (for example, a pattern that can distinguish which number of special signal light emitters 72 corresponds to which level crossing). For example, the verification device 1 described in Patent Document 1 or Patent Document 2 described above is mounted on a test vehicle or a commercial train, and an image is captured and analyzed so that the field of view is equivalent to the driver's field of view. Accordingly, even when there are a large number of the special signal light emitters 72 continuously, it is possible to automatically check and confirm whether the special signal light emitter 72 is approved for viewing without any error.

  In the confirmation device 1 described with reference to FIG. 2, for example, the confirmation device 1 has been described as including the display unit 12 in order to notify a driver or a maintenance-related employee of the determination result of the visual approval / disapproval. For example, instead of the display unit 19 or in addition to the display unit 19, an audio output unit or the like is provided. You may be able to let them know.

  Next, functions and operations of the special signal light emitter controller 71 and the special signal light emitter 72 described with reference to FIG. 7 will be described with reference to FIGS. 8 to 14, each relay coil and a power supply unit connected to the coil, a CR (capacitor and resistor) circuit connected to each element as necessary, a current limiting resistor, and a ground The parts that are obvious in the circuit design are omitted as appropriate.

  The special signal light emitter controller 71 in FIG. 8 and the special signal light emitter 72 in FIG. 9 are special signal light emitting devices described with reference to FIG. The machine controller 31 and the special signal light emitter 41 are connected using a pair of cables 52.

  The controller 71 for the special signal light emitter includes a relay circuit unit 81, a red light emission control unit 82, and a light emission control unit 83 for visual confirmation.

  When a red light emission command is input to the relay circuit unit 81, the relay 91-a is turned on, and accordingly, the relay contacts 91-b-1 and 91-b-2 are connected.

  When the relay contact 91-b-1 is in the connected state, the relay 92-a is in the OFF state. At that time, the relay contact 92-b is opened. Therefore, even if the visual confirmation light emission command is input to the relay circuit unit 81, the relay 93-a is not turned on while the red light emission command is input.

  Further, the red light emission control unit 82 performs different operations depending on whether the relay contact 91-b-2 is in a connected state or an open state. That is, the red light emission control unit 82 receives an input when the relay contact 91-b-2 is connected, generates a signal for causing the LED 45 of the special signal light emitter 72 to emit light, and sends the signal, and the relay contact 91-b. When -2 is in the open state, it has a function of constantly outputting a current in the direction opposite to the signal for causing the LED 45 to emit light, and detecting disconnection based on whether or not the current flows.

  The relay contact 91-b-2 and the red light emission control unit 82 have basically the same functions as those of the special signal light emitter controller 31 described with reference to FIGS.

  Hereinafter, a signal sending direction for causing the LED 45 of the special signal light emitter 72 to emit light is referred to as a forward direction, and a current direction for detecting a disconnection is referred to as a reverse direction.

  When the relay contact 92-b is in the connected state, that is, when the red light emission command is not input and the light emission command for visual confirmation is input to the relay circuit unit 81, the relay 93-a is turned on. Accordingly, relay contacts 93-b-1 and 93-b-2 are connected.

  When the relay contact 93-b-1 is in the connected state, the relay 94-a is turned on. A CR circuit 95 is connected in parallel to the relay 94-a, and a certain delay time is required after the relay contact 93-b-1 is disconnected until the relay 94-a is turned OFF. Will occur. The length of the delay time is determined by the capacitor capacity and resistance value of the CR circuit 95.

  When the relay 94-a is turned on, the relay contacts 94-b-1, 94-b-2, and 94-b-3 are connected. When the relay contact 93-b-2 and the relay contact 94-b-1 are connected, the relay 96-a is turned on. When the relay 96-a is in the ON state, the relay contacts 96-b-1 and 96-b-2 output the output of the visual confirmation light emission control unit 83 from the contacts 101 and 102 to the special signal light emitter 72, When the relay 96-a is in the OFF state, the relay contacts 96-b-1 and 96-b-2 output the output of the red light emission control unit 82 from the contacts 101 and 102 to the special signal light emitter 72. The contact is controlled.

  When the relay contact 94-b-2 is in the connected state, the visual confirmation light emission control unit 83 executes the operation.

  The visual confirmation light emission control unit 83 includes a power supply circuit 97 and a visual confirmation signal generation unit 98, and includes a pattern signal generation unit 99 as necessary.

  When a signal indicating that the visual confirmation light emission command is supplied to the power supply circuit 97, the visual confirmation signal generation unit 98 has different voltages and different frequencies with respect to the reverse current for disconnection confirmation. Alternatively, a signal that can be determined by the visual confirmation signal determination unit 111 of the special signal light emitter 72 described later, such as a signal waveform being different, is generated and supplied to the pattern signal generation unit 99. Details of the signal generated by the visual confirmation signal generation unit 98 and the determination of the visual confirmation signal in the special signal light emitter 72 will be described later with reference to FIGS.

  The pattern signal generation unit 99 blinks a pattern signal for blinking the special signal light emitters 72 in a pattern that can be distinguished from each other (for example, a pattern that can distinguish which number of special signal light emitters corresponds to which level crossing). Generate and output. The pattern signal generation unit 99 can generate and output various necessary pattern signals. For example, as described in Patent Document 2 described above, a plurality of adjacent railway traffic signals and special signals can be generated. Predetermined bit pattern to enable confirmation of the visual approval / non-approval of the intended railway traffic signal, special signal light emitter, signal device, or sign from among the light source, signal device, signal or other noise components Needless to say, it may be generated and output.

  When the relay contact 94-b-3 is in the connected state, the reverse current for detecting the disconnection output from the red light emission control unit 82 flows through the diode 84. That is, the reverse current for disconnection detection flows through the bypass circuit and does not flow after the circuit. Further, as described above, since the CR circuit 95 is connected in parallel to the relay 94-a, the relay 93-a is turned off, the relay contact 93-b-2 is opened, and the relay 96 The opening timing of the relay contact 94-b-3, which is the contact of the relay 94-a, is delayed with respect to the timing at which -a is turned off. That is, the relay 96-a is turned off, and the relay contacts 96-b-1 and 96-b-2 output the output of the red light emission control unit 82 from the contacts 101 and 102 to the special signal light emitter 72. After the contact is switched, the relay contact 94-b-3 is opened.

  The relay 93-a and the relay 94-a are turned ON when the input of the light emission command for visual confirmation is started and the input of the light emission command for visual confirmation is finished in a state where the red light emission command is not inputted. The operation timing of / OFF, connection / release of the relay contact 94-b-3 of the bypass circuit, and switching of the relay contacts 96-b-1 and 96-b-2 will be described later with reference to FIG.

  Next, the special signal light emitter 72 will be described with reference to FIG.

  The special signal light emitter 72 includes a visual confirmation signal determination unit 111 and a light emitting element 112 in addition to the LED 45 and the diode 61 described with reference to FIG. The LED 45 emits red light that transmits train operation information to the train driver, and the light emitting element 112 emits infrared light (for example, wavelengths of 850 nm and 940 nm) or visible light that is not likely to be mistaken by the crew. Is.

  The LED 45 is supplied with a positive current through the cable 52 from the controller 71 for the special signal light emitter, and flashes red to emit light.

  Further, when there is no disconnection, when a reverse current is supplied from the special signal light emitter controller 71 via the cable 52, a current flows through the diode 61.

  The visual confirmation signal determination unit 111 is a signal for causing the light emitting element 112 to emit light when a reverse current is supplied from the special signal light emitter controller 71 via the cable 52. A current to the light emitting element 112 when a predetermined signal such as a voltage is different, a frequency is different, or a signal waveform is different from a reverse current for disconnection confirmation. To emit light. Details of the signal generated by the visual confirmation signal generation unit 98 and the determination of the visual confirmation signal in the special signal light emitter 72 will be described later with reference to FIGS.

  Hereinafter, a light-emitting unit including an LED 41 that emits red light that transmits train operation information to a train driver is referred to as a first light-emitting unit, and there is no risk of misidentification by infrared rays (for example, wavelengths of 850 nm and 940 nm) or crew members. A light emitting unit including the light emitting element 112 that emits visible light is referred to as a second light emitting unit.

  Next, operations of the special signal light emitter controller 71 and the special signal light emitter 72 will be described.

  When the special signal light emitter controller 71 does not receive a red light emission command or a visual confirmation light emission command, the relay 91-a and the relay 93-a are in the OFF state, and the relay contact 91-b-2 and the relay contact 94-b-2 are not connected to each other. At this time, a reverse current is output by the red light emission control unit 82. Since the relay contact 96-b-1 and the relay contact 96-b-2 connect the red light emission control unit 82, the terminal 101, and the terminal 102, the reverse current flows through the cable 52 through the special signal light emitter. 72.

  When there is no disconnection or the like, the reverse current supplied to the terminal 103 of the special signal light emitter 72 passes through the diode 61 and is supplied from the terminal 104 to the special signal light emitter controller 71 via the cable 52. Is done. In addition, since the visual confirmation signal determination unit 111 determines that the supplied reverse current is not a signal for causing the light emitting element 112 to emit light, no current flows through the light emitting element 112. . Then, the reverse current cannot pass through the LED 45. Since the relay contact 96-b-1 and the relay contact 96-b-2 connect the red light emission control unit 82, the terminal 101, and the terminal 102, the relay contact 96-b-1 and the relay contact 96-b-2 pass through the diode 61 and from the terminal 104 via the cable 52. Thus, the reverse current supplied to the special signal light emitter controller 71 is input to the red light emission controller 82, and it is detected that no disconnection has occurred.

  For example, a red light emission command for causing the LED 45 of the special signal light emitter 72 to emit red light is used for the special signal light emitter, such as when the sensor detects that an abnormality has occurred in the railroad crossing or when the emergency stop button is pressed. When supplied to the controller 71, the relay 91-a is turned on and the relay contact 91-b-2 is connected. The red light emission control unit 82 outputs a positive current signal for causing the LED 45 of the special signal light emitter 72 to emit red light. At this time, since the relay contact 96-b-1 and the relay contact 96-b-2 connect the red light emission control unit 82, the terminal 101, and the terminal 102, the positive current flows through the cable 52 to It is supplied to the signal light emitter 72.

  The forward current supplied to the terminal 104 of the special signal light emitter 72 causes the LED 45 to emit red light and is supplied from the terminal 103 to the special signal light emitter controller 71 via the cable 52. The forward current supplied to the terminal 104 of the special signal light emitter 72 cannot pass through the diode 61 and the light emitting element 112.

  When the visual confirmation light emission command is supplied to the special signal light emitter controller 71, the relay 92-b is turned on. At this time, a red light emission command for causing the LED 45 of the special signal light emitter 72 to emit red light is detected when the sensor detects that an abnormality has occurred in the crossing or when the emergency stop button is pressed. If not supplied to the controller 71, the relay contact 94-b-2 is in a connected state, so that the visual confirmation light emission control unit 83 has a different voltage with respect to the reverse current for disconnection confirmation. A predetermined pattern signal that can be determined by the visual confirmation signal determination unit 111 such as having different signal waveforms or different signal waveforms is generated and output as a reverse current.

  By providing the relay 92-a, priority is given to the light emission of the LED 45 by the red light emission command even when the light emission command for visual confirmation is supplied. Will not interfere with the service. Note that the relay 92-a can be omitted when the visual confirmation process is not performed during train operation.

  When the relay contact 94-b-2 is in a connected state, the relay contact 96-b-1 and the relay contact 96-b-2 connect the light emission control unit 83 for visual confirmation with the terminal 101 and the terminal 102. Therefore, the reverse current is supplied to the special signal light emitter 72 via the cable 52.

  The reverse current supplied to the special signal light emitter 72 is supplied to the visual confirmation signal determination unit 111. The visual confirmation signal determination unit 111 supplies only a signal for causing the light emitting element 112 to emit light based on the voltage value, the signal frequency, or the signal waveform of the current, for example, in a predetermined pattern. The light emitting element 112 emits light.

  Next, referring to FIG. 10, the timing of connection and release of each of relay 93-a, relay 87, relay contact 94-b-3, and relay contacts 96-b-1 and 96-b-2. Details will be described.

  When the visual confirmation light emission command is input from the outside in a state where the red light emission command is not input, the relay 93-a is turned on, and then the relay 94-a is turned on. When the relay 94-a is turned on, the relay contact 94-b-3 of the bypass circuit is connected, and the reverse current output from the red light emission control unit 82 is supplied to the relay contact 96-b-2. Instead, it is bypassed. Thereafter, the relay contact 96-b-1 and the relay contact 96-b-2 are switched, and an output signal from the visual confirmation light emission control unit 83 is output to the outside.

  When the visual confirmation light emission command is completed, the relay 93-a is turned off, and when the relay contact 93-b-2 is opened, the relay 96-a is turned off, and the red light emission control unit 82 The relay contact 96-b-1 and the relay contact 96-b-2 are switched so that the output signal is output to the outside. However, even if the relay contact 93-b-2 is opened, the CR circuit 95 is switched. During the discharge, the relay 94-a is not turned off. After the discharge of the CR circuit 95, the relay 94-a is turned off, the relay contact 94-b-3 is opened, and the output signal from the red light emission control unit 82 is output to the outside.

  Thereby, it is possible to prevent the disconnection detection from being erroneously performed when the output from the controller 71 for the special signal light emitter is switched.

  Next, the details of the signal generated by the visual confirmation signal generation unit 98 and the determination of the visual confirmation signal in the special signal light emitter 72 will be described with reference to FIGS. About the operation | movement of the controller 71 for special signal light emitters, and the operation | movement of the special signal light emitter 72, the description is abbreviate | omitted suitably about the part similar to the case where it demonstrated using FIG. 8 and FIG.

  With reference to FIG. 11, the case where the reverse current for causing the light emitting element 112 supplied to the special signal light emitter 72 to emit light is a high-voltage current with respect to the reverse current for disconnection detection will be described.

  The visual confirmation light emission control unit 83-1 in FIG. 11 uses the visual confirmation signal generation unit 98-1 having the function of controlling the voltage to generate a reverse current for causing the light emitting element 112 to emit light, and to reverse the disconnection detection. It is assumed that the voltage is higher than the directional current and higher than the Zener voltage value of the Zener diode 122 described later, and the pattern signal generator 99 generates and outputs a predetermined pattern signal.

  The signal determination unit 111-1 for visual confirmation of the special signal light emitter 72-1, for example, is the same as the diode 121 only when a diode 121 that allows only a reverse current to pass through and a current that is equal to or higher than a predetermined voltage value is supplied. Whether or not the supplied reverse current is a signal for causing the light emitting element 112 to emit light is determined by the Zener diode 122 that passes the current in the direction (that is, the reverse current). When the signal supplied to the visual confirmation signal determination unit 111-1 is a reverse current having a voltage value equal to or higher than the Zener voltage value of the Zener diode 122, the light emitting element 112 is connected via the diode 121 and the Zener diode 122. A predetermined pattern signal is supplied, and the light emitting element 112 flashes and emits light.

  Further, when the signal supplied to the visual confirmation signal determination unit 111-1 is a reverse current having a voltage value equal to or lower than the Zener voltage value of the Zener diode 122, that is, the reverse current is a current for detecting disconnection. In this case, since the current cannot pass through the Zener diode 122 of the visual confirmation signal determination unit 111-1, the light emitting element 112 does not emit light.

  Here, the visual confirmation signal determination unit 111-1 of the special signal light emitter 72-1 has been described as selectively passing a reverse current of a predetermined voltage value or higher using the Zener diode 122. The visual confirmation signal determination unit 111-1 may, for example, replace a Zener diode 122 with a high-pass filter, a band-pass filter, or the like as long as it can selectively pass a reverse current of a predetermined voltage value or higher. A circuit having these functions may be used.

  Next, referring to FIG. 12, a reverse current for causing the light emitting element 112 supplied to the special signal light emitter 72 to emit light is a signal having a predetermined frequency different from the reverse current for detecting disconnection (the signal thereof). For example, the waveform may be a signal waveform different from the reverse current for detecting disconnection, such as a SIN wave, a sawtooth wave, and a square wave.

  The visual confirmation light emission control unit 83-2 in FIG. 12 uses the visual confirmation signal generation unit 98-2 including the oscillation circuit 131 to generate a reverse current for causing the light emitting element 112 to emit light, and a reverse current for disconnection detection. The pattern signal generation unit 99 generates and outputs a predetermined pattern signal.

  For example, the visual confirmation signal determination unit 111-2 of the special signal light emitter 72-2 includes a filter 141 that allows only a predetermined frequency to pass therethrough, so that the supplied reverse current causes the light emitting element 112 to emit light. It is determined whether it is a signal. Only when the signal supplied to the visual confirmation signal determination unit 111-2 is a reverse current having a predetermined frequency, a predetermined pattern signal is supplied to the light emitting element 112 through the filter 141, and the light emitting element 112 Flashes and emits light.

  Further, when the signal supplied to the visual confirmation signal determination unit 111-2 is not a reverse current having a predetermined frequency, that is, when the reverse current is a disconnection detection current, the current is The light emitting element 112 does not emit light because it cannot pass through the filter 141 of the visual confirmation signal determination unit 111-2.

Further, when the reverse current for causing the light emitting element 112 supplied to the special signal light emitter 72 to emit light is a signal having a predetermined frequency different from the reverse current for detecting disconnection, a plurality of special signal light emitters 72 are provided. By making the pattern signals for visual confirmation corresponding to each of the signals having different frequencies, a plurality of special signal light emitters 72-2 from one visual confirmation light emission control unit 83 via a pair of cables 52 are obtained. The light emitting elements 112 can emit light with a unique bit pattern. With reference to FIG. 13, the case where the light emitting elements 112 of the plurality of special signal light emitters 72-2 each emit light with a unique bit pattern will be described.

  In FIG. 13, the relays and terminals shown in FIG. 12 are omitted, and the parts necessary for the description of the operation for causing the light emitting element 112 to emit light, that is, the visual confirmation light emission control unit 83-2 and the special signal light emission. Only machine 72-2 is shown. The configuration of the omitted part is the same as that described with reference to FIG.

  A plurality of special signal light emitters 72-2 are connected in series or in parallel via a pair of cables 52 to the output of the light emission control unit 83-2 for visual confirmation. In FIG. 13, three special signal light emitters 72-2-1, a special signal light emitter 72-2-2, and a special signal light emitter 72-2-3 are connected.

  The visual confirmation signal generation unit 98-2 of the visual confirmation light emission control unit 83-2 includes a plurality of oscillation circuits 131 that oscillate at different frequencies. Here, it is assumed that the visual confirmation signal generation unit 98-2 includes three oscillation circuits 131 including an oscillation circuit 131-1, an oscillation circuit 131-2, and an oscillation circuit 141-3. Here, it is assumed that the oscillation frequency of the oscillation circuit 131-1 is AHz, the oscillation frequency of the oscillation circuit 131-2 is BHz, and the oscillation frequency of the oscillation circuit 131-3 is CHz.

  The pattern signal generation unit 99 includes a plurality of bit pattern generation units 151 that generate light emission pattern signals of the light emitting elements 112 of the plurality of special signal light emitters 72-2. Here, the first bit pattern generation unit 151-1, the second bit pattern generation unit 151-2, and the third bit pattern generation unit 151-3 are supplied with signals having different frequencies, respectively, A light emission pattern signal of each light emitting element 112 of the signal light emitter 72-2-1, the special signal light emitter 72-2-2, and the special signal light emitter 72-2-3 is generated and output as a reverse current. .

  The reverse current sent to the cable 52 includes the light emission pattern signal of the light emitting element 112 of the special signal light emitter 72-2-1 at the frequency AHz and the light emitting element 112 of the special signal light emitter 72-2-2 at the frequency BHz. The light emission pattern signal and the light emission pattern signal of the light emitting element 112 of the special signal light emitter 72-2-3 having the frequency CHz are mixed.

  The visual confirmation signal determination unit 111-2 of the special signal light emitter 72-2-1 includes an AHz pass filter 141-1 that selectively passes only a signal having a frequency of AHz. Therefore, the light emission pattern signal of the light emitting element 112 of the special signal light emitter 72-2-1 having the frequency AHz, the light emission pattern signal of the light emitting element 112 of the special signal light emitter 72-2-2 having the frequency BHz, and the special signal having the frequency CHz. Since only the signal with the frequency AHz in the reverse current in which the light emission pattern signals of the light emitting element 112 of the signal light emitter 72-2-3 are mixed is supplied to the light emitting element 112, the special signal light emitter 72-2- One light emitting element 112 is controlled to emit light with a predetermined bit pattern including information for transmitting that it is a special signal light emitter 72-2-1.

  The visual confirmation signal determination unit 111-2 of the special signal light emitter 72-2-2 includes a BHz pass filter 141-2 that selectively passes only a signal having a frequency BHz. Therefore, the light emission pattern signal of the light emitting element 112 of the special signal light emitter 72-2-1 having the frequency AHz, the light emission pattern signal of the light emitting element 112 of the special signal light emitter 72-2-2 having the frequency BHz, and the special signal having the frequency CHz. Since only the signal of the frequency BHz out of the reverse current in which the light emission pattern signals of the light emitting element 112 of the signal light emitter 72-2-3 are mixed is supplied to the light emitting element 112, the special signal light emitter 72-2- The second light emitting element 112 is controlled to emit light with a predetermined bit pattern including information for transmitting that it is the special signal light emitter 72-2-2.

  The visual confirmation signal determination unit 111-2 of the special signal light emitter 72-2-3 includes a CHz pass filter 141-3 that selectively passes only a signal having a frequency CHz. Therefore, the light emission pattern signal of the light emitting element 112 of the special signal light emitter 72-2-1 having the frequency AHz, the light emission pattern signal of the light emitting element 112 of the special signal light emitter 72-2-2 having the frequency BHz, and the special signal having the frequency CHz. Since only the signal of the frequency CHz of the reverse current in which the light emission pattern signals of the light emitting element 112 of the signal light emitter 72-2-3 are mixed is supplied to the light emitting element 112, the special signal light emitter 72-2- The third light emitting element 112 is controlled to emit light with a predetermined bit pattern including information for transmitting that it is a special signal light emitter 72-2-3.

  As described above, the special signal light emitter 41 or the special signal light emitter 72 has a special signal from any distance within a predetermined first distance (for example, 800 m) referred to as a viewing distance from each level crossing. The light emitting device 41 or the special signal light emitting device 72 must be installed at a position where the light emission state can be confirmed. For example, when there is a sharp curve, there is a possibility that the red light emission of a plurality of special signal light emitters 41 is simultaneously controlled from the current special signal light emitter controller 31. Even in such a case, by adopting the configuration described with reference to FIG. 13, the current special cable can be installed without newly laying or re-laying the cable 52 to which the plurality of special signal light emitters 41 are connected. The signal light emitter controller 31 can be updated to the special signal light emitter controller 71-2, and the special signal light emitter 41 can be updated to the special signal light emitter 72-2.

  Further, the pattern signal generation unit 99 of the light emission control unit 83 for visual confirmation described above may be provided in the special signal light emitter 72 instead of the light emission control unit 83 for visual confirmation as shown in FIG.

  That is, in the visual confirmation light emission control unit 83-3 of the special signal light emitter controller 71-3 in FIG. 14, the visual confirmation light emission command is supplied to the special signal light emitter controller 71, and the red light emission command is received. When not supplied, that is, when a signal indicating that the light emission command for visual confirmation is supplied to the power supply circuit 97, the visual confirmation signal generator 98 generates the reverse current for disconnection confirmation. A signal that can be determined by the visual confirmation signal determination unit 111 of the special signal light emitter 72, which will be described later, such as a voltage, a frequency, or a signal waveform being different, is generated and output as a reverse current.

  At this time, since the relay contact 96-b-1 and the relay contact 96-b-2 connect the light emission control unit 83 for visual confirmation, the terminal 101, and the terminal 102, the reverse current flows through the cable 52. The special signal light emitter 72-3 is supplied.

  The reverse current supplied to the special signal light emitter 72-3 is supplied to the visual confirmation signal determination unit 111. The visual confirmation signal determination unit 111 supplies only the signal for causing the light emitting element 112 to emit light to the pattern signal generation unit 99 based on the voltage value, the signal frequency, or the signal waveform of the current, for example.

  The pattern signal generation unit 99 blinks a pattern signal for blinking the special signal light emitters 72 in a pattern that can be distinguished from each other (for example, a pattern that can distinguish which number of special signal light emitters corresponds to which level crossing). The generated light is supplied to the light emitting element 112, and the light emitting element 112 is caused to emit light in a predetermined pattern. The pattern signal generation unit 99 can generate and output various necessary pattern signals. For example, as described in Patent Document 2 described above, a plurality of adjacent railway traffic signals and special signals can be generated. Predetermined bit pattern to enable confirmation of the visual approval / non-approval of the intended railway traffic signal, special signal light emitter, signal device, or sign from among the light source, signal device, signal or other noise components Needless to say, it may be generated and output.

  In the configuration described with reference to FIG. 14, a signal having a pattern that can distinguish each of the special signal light emitters 72 (for example, a pattern that can distinguish which particular signal light emitter corresponds to which level crossing) is generated. Each of the special signal light emitters 72-3 has a function of That is, the signal generated by the visual confirmation light-emission control unit 83 is a current that can be determined to be different from the reverse current for disconnection detection, does not include information based on the bit pattern, and passes through the cable 52. The supplied signal includes only information that instructs the light emitting element 112 to emit light. Then, the special signal light emitter 72-3 controls the light emission for transmitting information indicating itself by the function of itself.

  Therefore, even when the current controller 31 for special signal light emitters simultaneously controls the red light emission of the plurality of special signal light emitters 41 installed, the plurality of special signal light emitters 41 installed are The current special signal light emitter controller 31 is updated to the special signal light emitter controller 71-3 and the special signal light emitter 41 is made to emit special signal light without newly laying or re-laying the connected cable 52. It becomes possible to update to the machine 72-3

  In FIG. 8, FIG. 11, FIG. 12, and FIG. 14, the special light emitter 72 includes a first light emitting unit including an LED 45 that emits red light that transmits train operation information to a train driver; Although the second light emitting unit including the light emitting element 112 that emits infrared light (for example, a wavelength of 850 nm or 940 nm) or visible light that is not likely to be mistaken by a crew member is described as being provided in the same housing, a special signal light emitter 72 may be provided with the first light emitting unit and the second light emitting unit in the same housing, or the housing having the second light emitting unit may be retrofitted to the conventional special signal light emitter 41. .

  With reference to FIG. 15, the example of arrangement | positioning of the 1st light emission part and the 2nd light emission part of the special signal light emitter 72 which equips the same housing | casing with a 1st light emission part and a 2nd light emission part is demonstrated. In FIG. 15, as an example of the special signal light emitter 72 having the first light emitting unit and the second light emitting unit in the same housing, the special signal light emitter 72-1 to the special signal light emitter 72-4 are illustrated. Yes.

  The special signal light emitter 72-1 has an infrared ray (for example, a wavelength of 850 nm or 940 nm) or a crew member at the upper part of the first light emitting unit including the LED 45 that emits red light for transmitting train operation information to the train driver. A second light-emitting unit including the light-emitting element 112 that emits visible light that is not likely to be mistaken is provided. In particular, the signal light emitter 72-2 includes a second light emitting unit including the light emitting element 112 on the upper and lower sides of the first light emitting unit including the LED 45. In particular, the signal light emitter 72-3 includes a second light-emitting unit including the light-emitting element 112 below the first light-emitting unit including the LED 45. In particular, in the signal light emitter 72-34, the LEDs 45-1 to 45-m and the light emitting elements 112-1 to 112-n are arranged in a mixed manner.

  As described above, the special signal light emitters 72-1 to 72-4 emit light from the first light emitting unit when a forward current is passed through the pair of cables 53. Has been made. In addition, as described above, the special signal light emitters 72-1 to 72-4 have a voltage value different from the voltage used for disconnection detection (for example, the voltage used for disconnection detection) via the cable 53. The second light emitting unit emits light when a reverse current of a high voltage current, a signal having a different frequency, or a different signal waveform (for example, SIN wave, sawtooth wave, square wave, etc.) is applied. ing.

  Next, an example of the special signal light emitter 72 in the case where a housing having the second light emitting unit is retrofitted to the conventional special signal light emitter 41 will be described with reference to FIGS. 16 and 17.

  As shown in FIG. 16 and FIG. 17, the special signal light emitter 72 has a configuration in which a light emitting unit additional housing 161 attached later is added to the conventional special signal light emitter 41. As shown in FIG. 16, the light emitting unit additional housing 161 includes a visual confirmation signal determination unit 111 and a light emitting element 112. The special signal light emitter 41 has a terminal 171 for outputting a current in the forward direction to the light emitting unit additional housing 161 and a terminal for outputting a current in the reverse direction to the light emitting unit additional housing 161. 171 is provided, the terminal 171 is connected to the terminal 173 of the light emitting unit additional casing 161, and the terminal 172 is connected to the terminal 174 of the light emitting unit additional casing 161. Note that the terminal 173 may be connected to the terminal 104 and the terminal 174 may be connected to the terminal 103 without newly providing the terminal 171 and the terminal 172, respectively.

  Even if a positive current is supplied from the terminal 173 of the light emitting unit additional housing 161, no current flows through the light emitting element 112. Further, even if a reverse current for disconnection detection is supplied from the terminal 174 of the light emitting unit additional casing 161, the current is interrupted by the visual confirmation signal determination unit 111, so that no current flows through the light emitting element 112. The reverse current flows to the light emitting element 112 only when a signal that can be confirmed as a visual confirmation signal is supplied from the terminal 174 of the light emitting unit additional casing 161 by the visual confirmation signal determination unit 111.

  Further, as shown in FIG. 17, the retrofitted additional light emitting unit additional casing 161 can be attached to the upper part of the conventional special signal light emitter 41 or attached to the lower part of the conventional special signal light emitter 41. .

  Further, in order to configure the special signal light emitter controller 71 for controlling the special signal light emitter 72 described above, the apparatus performed for the special signal light emitter controller 31 described with reference to FIGS. 5 and 6. There are various ways to update the.

  The special signal light emitter controller 31 described with reference to FIGS. 5 and 6 is already provided with a red light emission controller 82 and a relay in the preceding stage. Accordingly, the special light emission control unit 83 includes a light emission control unit 83 for visual confirmation, a diode 84, a relay for controlling the operation thereof, and a wiring for connecting them in one additional circuit housing. The machine controller 31 can be updated to a special signal light emitter controller 71.

  In addition, in order to ensure safety in railway operation, the relay is a particularly important element. Therefore, the user of the controller 71 for the special signal light emitter is the relay selected by the supplier of the additional circuit housing. In many cases, you want to use the relay that you choose.

  Therefore, the relay circuit unit 81, the light emission control unit 83 for visual confirmation, the diode 84, and the wiring connecting them are housed in one additional circuit housing, and the user of the controller 71 for the special signal light emitter is selected. The special signal light emitter controller 31 may be updated to the special signal light emitter controller 71 by adding the relay contact 96-b-1 and the relay contact 96-b-2.

  Further, by including the red light emission control unit 82 in the additional circuit casing, the wiring work for updating the special signal light emitter controller 31 to the special signal light emitter controller 71 is very simple. It may be a thing.

  Further, when part or all of the special signal light emitter 41 is updated to the special signal light emitter 72 and the special signal light emitter controller 71 is not updated, the light emission control of the light emitting element 112 of the special signal light emitter 72 is performed. Although it cannot be performed, the red light emission by the LED 45 that informs the driver or the like of information that an abnormality has occurred at a railroad crossing or the like can be executed without any problem.

  Even when the special signal light emitter 41 is not updated and a part or all of the special signal light emitter controller 31 is updated to the special signal light emitter controller 71, the control for the special signal light emitter is performed. Since the device 71 includes the function of the controller 31 for the special signal light emitter, the red light emission by the LED 45 that informs the driver or the like that an abnormality has occurred at a railroad crossing or the like can be executed without any problem. is there.

  Furthermore, even when a part of the special signal light emitter 41 is updated to the special signal light emitter 72 and a part of the controller 31 for the special signal light emitter is updated to the controller 71 for the special signal light emitter, The special signal light emitter controller 71 includes the function of the special signal light emitter controller 31, and the special signal light emitter 72 includes the function of the special signal light emitter 41. The red light emission by the LED 45 that conveys information such as occurrence to a driver or the like can be executed without any problem.

  That is, the above-described update operation of the special signal light emitter controller 71 and the special signal light emitter 72 is not performed as a whole of the special signal light emitter control system, but only a part thereof, as shown in FIGS. The functions of the special signal light emitter controller 31 and the special signal light emitter 41 described above are retained.

  Thereby, the update operation of the special signal light emitter control system does not affect normal train operation.

  When at least a part of the special signal light emitter 41 and the special signal light emitter controller 31 is updated to the special signal light emitter 72 and the special signal light emitter controller 71, the inspection vehicle or the sales train, The confirmation device 1 described in the above-described patent document (Japanese Patent No. 4925987 or Japanese Patent Application Laid-Open No. 2010-173597) is mounted, and an image is picked up so that the visual field is equivalent to the visual field of the driver. By analyzing the light emission pattern according to the above, even if there are a large number of consecutive special signal light emitters 72, the visual approval approval of each special signal light emitter 72 is automatically checked without error. It becomes possible to confirm.

  In addition, the object which adds the function equivalent to the apparatus which confirms the visual approval / denial of the railway traffic signal described in Patent Document 1 described with reference to FIGS. 1 and 2 is the special signal emission described with reference to FIGS. 5 and 6. It may be other than the machine controller 31 and the special signal light-emitting device 41, and the rail light-emitting devices such as the railway light device and the special signal light-emitting device in all forms, or the railway light-emitting devices such as the railway light-emitting device and the special signal light-emitting device. A light emitting device for a vehicle and a controller for controlling them are equivalent to the device for confirming the approval / disapproval of the railway traffic signal described in Patent Document 1 described with reference to FIGS. 1 and 2 by using the same method. Needless to say, it is possible to add functions.

  Next, the signal inspection process of the confirmation device 1 will be described with reference to the flowchart of FIG.

  At this time, the controller 71 for special signal light emitters causes the signal determination unit 111 for visual confirmation to check whether the supplied reverse current is a reverse current for disconnection detection, or sets the light emitting element 112 with a predetermined bit pattern. A reverse current that can be used to determine whether the signal is to be emitted is generated, output, and output to the light emitting element 112 of the special signal light emitter 72. The signal inspection pattern that can be distinguished is emitted using invisible light such as infrared rays or visible light that is not likely to be mistaken by the crew.

  Further, in the confirmation device 1, from the input unit 15, a signal inspection pattern that can distinguish which crossing and which light-emitting device is in the inspection section, and the order in which they are to be confirmed, Information indicating the section is input and stored in the data storage unit 18.

  In step S <b> 11, the control unit 14 reads the signal inspection pattern stored in the data storage unit 18.

  In step S12, the control unit 14 extracts a signal pattern to be acquired next from the signal inspection pattern read in step S11.

  In step S <b> 13, the A / D conversion unit 12 acquires an image captured with predetermined sampling data by the video camera 211, converts analog imaging data into digital image data, and supplies the digital image data to the image data storage unit 13. The image data storage unit 13 stores the digital image data supplied from the A / D conversion unit 12.

  In step S14, the control unit 14 performs digital image data stored in the image data storage unit 13 by, for example, the processing described in the above-described patent document (Japanese Patent No. 4925987 or Japanese Patent Application Laid-Open No. 2010-173597). And a process of determining whether or not the pattern of the signal to be acquired next, which has been extracted in step S12, is correctly captured is executed.

  In step S15, the control unit 14 determines whether or not blinking that matches the corresponding signal pattern has been detected within a predetermined section as a result of the determination processing in step S14.

  If it is determined in step S15 that blinking matching the corresponding signal pattern has been detected, in step S16, the control unit 14 can visually recognize which signal corresponding to which level crossing in the data storage unit 18. Record the detected log indicating.

  If it is determined in step S15 that blinking that matches the corresponding signal pattern could not be detected, in step S17, the control unit 14 controls the display unit 19 to determine which signal corresponding to any level crossing. An error notification indicating that the line was not visually recognized is made, and an error detection log indicating which signal corresponding to which level crossing was not visually recognized is left in the data storage unit 18.

  In step S <b> 18, the control unit 14 determines whether or not the visual authorization rejection confirmation using the signal inspection pattern has been completed.

  If it is determined in step S18 that all the visual authorization rejection checks have not been completed, the process returns to step S12, and the subsequent processes are repeated. In step S18, when it is determined that all the visual authorization rejection confirmations have been completed, the processing is terminated.

  By such processing, even when there are a large number of railway light emitters such as a plurality of traffic lights and special signal light emitters in succession, a railway such as a traffic light or special signal light emitter is automatically and without error. It becomes possible to check and confirm whether or not the light emitting device for visual use is approved.

  The series of processes described with reference to FIG. 18 can be executed by hardware or can be executed by software. When a series of processing is executed by software, a program constituting the software may execute various functions by installing a computer incorporated in dedicated hardware or various programs. For example, it is installed from a program recording medium in a general-purpose personal computer or the like.

  The program executed by the computer may be a program that is processed in time series in the order described in this specification, or in parallel or at a necessary timing such as when a call is made. It may be a program for processing.

  The embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Confirmation apparatus 11 ... Video camera 12 ... A / D conversion part 13 ... Image data storage part 14 ... Control part 15 ... Input part 16 ... Setting part 17 ... Program storage part 18 ... Data storage , 19 ... Display unit, 31 ... Controller for special signal light emitter, 41 ... Special signal light emitter, 45 ... LED, 51 ... Instrument box, 52 ... Cable, 61 ... Diode, 71 ... Controller for special signal light emitter 72 ... Special signal light emitter 81 ... Relay circuit part 82 ... Red light emission control part 83 ... Light emission control part for visual confirmation 84 ... Diode 91-a ... Relay 91-b ... Relay contact 92 -A ... Relay, 92-b ... Relay contact, 93-a ... Relay, 93-b ... Relay contact, 94-a ... Relay, 94-b ... Relay contact, 95 ... CR circuit, 96 -A ... relay, 96 -B ... relay contact, 111 ... visual confirmation signal determination unit, 112 ... light emitting element, 121 ... diode, 122 ... zener diode, 131 ... oscillation circuit, 141 ... filter, 151 ... bit pattern generation unit

Claims (4)

In the railway light-emitting device controller connected to the railway light-emitting device having the first light-emitting portion and the second light-emitting portion by a pair of cables and controlling the railway light-emitting device,
When the first signal for controlling the lighting of the first light emitting unit is output and the first signal is not output, the current in the direction opposite to the first signal is generated by the cable and the railroad. First light emission control means for performing disconnection detection processing based on whether or not the light flows to the light emitting device;
Generate and output a second signal for controlling lighting of the second light-emitting unit, which is a current in a direction opposite to that of the first signal and is distinguishable from a current for performing the disconnection detection process Second light emission control means for
A signal supplied to the railway light-emitting device via the cable includes the first signal output from the first light emission control means and the second signal output from the second light emission control means. Switching means for switching between signals,
A bypass circuit for bypassing so that a current in the opposite direction to the first signal output by the first light emission control means is not output.
After the bypass circuit is in the connected state, the switching means switches the signal supplied to the railway light-emitting device via the cable from the first signal to the second signal, and The bypass circuit is in a disconnected state after the signal supplied to the railway light-emitting device via the cable is switched from the second signal to the first signal by the switching means. A railway light-emitting device controller. The railway light emitting device control device according to claim 1,
A first relay that is turned on by the input of a signal that commands the operation of the second light emission control means, and electrically connects the corresponding contacts;
A second relay that is turned on when the first contact of the first relay is electrically connected and electrically connects the corresponding contact;
A CR circuit connected in parallel to the second relay;
The second contact of the first relay is electrically connected, and the first contact of the second relay is electrically connected, so that the third contact is turned on and the corresponding contact is switched. With relays and
When the second contact of the second relay is connected, the bypass circuit bypasses a current in a direction opposite to the first signal,
The railway light-emitting device control device, wherein the switching means is configured by a contact of the third relay. A railway light-emitting device comprising a railway light-emitting device and a railway light-emitting device controller for controlling the railway light-emitting device, wherein the railway light-emitting device and the railway light-emitting device controller are connected by a pair of cables. In the control system,
The railway light emitter is
First light emitting means for emitting light based on a current in a first direction;
Current passing means for passing a current in a second direction different from the first direction;
Selection means for selectively passing a current in the second direction that meets a predetermined condition;
A second light emitting means for emitting light with a light distinguishable from the light emitted by the first light emitting means by the current in the second direction selectively passed by the selecting means,
The railway light-emitting device controller is
When the first signal for controlling the lighting of the first light emitting means is output by the current in the first direction, and when the first signal is not output, the current in the second direction is First light emission control means for performing disconnection detection processing based on whether the cable and the railroad light emitter flow or not;
Generating and outputting a second signal for controlling the lighting of the second light-emitting means, which is distinguishable from the current for performing the disconnection detection process, which is a current in the second direction; Light emission control means;
A signal supplied to the railway light-emitting device via the cable includes the first signal output from the first light emission control means and the second signal output from the second light emission control means. Switching means for switching between signals,
A bypass circuit for bypassing so that a current in the direction opposite to the first signal output by the first light emission control means is not output;
After the bypass circuit is in the connected state, the switching means switches the signal supplied to the railway light-emitting device via the cable from the first signal to the second signal, and The bypass circuit is in a disconnected state after the signal supplied to the railway light-emitting device via the cable is switched from the second signal to the first signal by the switching means. Light-emitting device control system for railways. The railway light emitting device control system according to claim 3,
A first relay that is turned on by the input of a signal that commands the operation of the second light emission control means, and electrically connects the corresponding contacts;
A second relay that is turned on when the first contact of the first relay is electrically connected and electrically connects the corresponding contact;
A CR circuit connected in parallel to the second relay;
The second contact of the first relay is electrically connected, and the first contact of the second relay is electrically connected, so that the third contact is turned on and the corresponding contact is switched. With relays and
When the second contact of the second relay is connected, the bypass circuit bypasses a current in a direction opposite to the first signal,
The railway light-emitting device control system, wherein the switching means is constituted by a contact of the third relay.

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