JP2013228271A - Maintenance system for railroad vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a maintenance system for railroad vehicle that substitutes for abnormality detection by maintenance engineers that it is difficult for the maintenance engineers to perform in inspection operation for condition reference maintenance, and also supports a treatment when abnormality is found by instructing the maintenance engineers on a treatment method in the case of the abnormality detection.SOLUTION: A maintenance system for railroad vehicle includes an equipment state estimation section 101 which estimates an estimated value of the state of vehicle equipment on the basis of vehicle information gathered from a railroad vehicle and displays an inspection instruction, and an operation confirmation instruction section 102 which determines abnormality of the vehicle equipment on the basis of the estimated value and an equipment inspection value input by a maintenance engineer, and displays inspection/adjustment instructions in the case of abnormality.

Description

  The present invention relates to a railway vehicle maintenance system.

  In order to improve the maintenance efficiency of railway vehicles, the introduction of state-based maintenance for estimating the vehicle state from vehicle information (sensor values, control command values) and performing maintenance based on the estimated vehicle state is in progress.

  For example, in Japanese Patent Laid-Open No. 9-243518 (Patent Document 1), filtering means for extracting data larger than the fatigue limit from measuring the stress of the axle of a running vehicle with a sensor, the extracted data is input for a predetermined period. Calculation means for accumulating the stress amplitude value extracted for each input, the probability of occurrence of fatigue damage caused by past travel on similar axles, and the cumulative value of stress amplitude value that has acted until the fatigue damage occurs Accumulation of stress amplitude values calculated from a database storing fatigue damage occurrence probability data, and a cumulative value of stress amplitude values giving the lower limit of unacceptable fatigue damage occurrence probability on the fatigue damage occurrence probability data A vehicle axle fatigue monitoring device is disclosed that includes an evaluation means for subtracting a value and evaluating that there is no fatigue margin when the subtraction value is zero or a negative value (see summary).

  Japanese Patent Application Laid-Open No. 2007-118888 (Patent Document 2) describes an inspection start instruction means for instructing the start of a predetermined inspection in a vehicle, inspection contents of a device or a sensor to be inspected mounted on the vehicle, and Inspection content storage means for storing the inspection method, inspection method guidance means for guiding the inspection content and inspection method to be inspected to the user based on the instruction and stored content, and inspection result display for displaying the result of the inspection performed by the user And an inspection result confirmation means by which the user confirms the result of the inspection. When the inspection result is confirmed by the inspection result confirmation means, the inspection method guidance means checks the inspection contents and inspection of the next inspection object. A vehicle inspection support device is disclosed that guides a method to a user (see summary).

JP-A-9-243518 JP 2007-118887 A

  However, when state-based maintenance such as Patent Document 1 is introduced, maintenance personnel have no opportunity to regularly inspect the vehicle as in the past, so the maintenance personnel have overlooked the abnormalities that have been discovered so far. The possibility increases.

  In addition, even when the inspection is performed according to the inspection instruction of the maintenance system as in Patent Document 2 and normality is determined to be abnormal, the maintenance staff observes the change in the state of the equipment as in the conventional periodic inspection in the state-based maintenance. Therefore, it is difficult for maintenance personnel to detect minute changes in vehicle equipment and determine whether it is abnormal or normal, and there is a high possibility of overlooking the abnormality.

  In the present invention, the maintenance system replaces abnormality detection by maintenance personnel, which has been difficult in the inspection work of state-based maintenance, and also provides maintenance support at the time of abnormality detection by instructing the maintenance personnel how to handle the abnormality. The object is to provide a railway vehicle maintenance system that can be implemented.

In order to solve this problem, in the present invention, an estimated value of the state of the vehicle equipment based on the vehicle information collected from the railway vehicle, and an equipment state estimating means for displaying an inspection instruction,
Operation check instruction means for determining an abnormality of the vehicle apparatus based on the estimated value and an apparatus inspection value input by a maintenance person, and displaying an inspection / adjustment instruction in the event of an abnormality.

  According to the present invention, since the maintenance system replaces the abnormality detection by the maintenance staff and the maintenance staff does not observe the change in the state of the equipment, the possibility that the maintenance staff misses the minute change of the vehicle equipment is reduced. In addition, treatment support when an abnormality is found can be implemented. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a block diagram which shows the outline | summary of this invention. It is a flowchart figure which shows the outline | summary of this invention. It is an example of the time chart of the apparatus state estimated value of this invention. It is a figure explaining the example of application to the railway vehicle of this invention. 4 is an example of a maintenance staff screen according to the first embodiment. 3 is an example of a treatment flowchart according to the first embodiment. 12 is an example of a maintenance staff screen according to the second embodiment. 10 is an example of a treatment flowchart according to the second embodiment. 10 is another example of a maintenance staff screen according to the second embodiment. It is another example of the treatment flowchart of Example 2. 12 is an example of a maintenance staff screen according to the third embodiment. 10 is an example of a treatment flowchart according to the third embodiment. 10 is an example of a maintenance staff screen according to the fourth embodiment. It is an example of the treatment flowchart of Example 4. 10 is an example of a maintenance staff screen according to a fifth embodiment. FIG. 10 is an example of a treatment flowchart according to the fifth embodiment.

  In a railway vehicle maintenance system according to an embodiment of the present invention, an on-board control device for a railway vehicle that collects vehicle information for controlling a plurality of vehicle devices including vehicle-mounted devices or vehicle control devices mounted on a plurality of vehicles. An estimated value of the state of the plurality of vehicle devices based on the vehicle information received from the device, a device state estimation unit that displays an inspection instruction of the vehicle device in which the estimated value exceeds a predetermined threshold, and the estimated value And a predetermined range in which a comparison value between the estimated value and the device inspection value is determined in advance, based on a device inspection value input by a maintenance engineer who has inspected the vehicle device. It is preferable to include an operation confirmation instruction unit that displays an inspection / adjustment instruction as an abnormal time when it is determined whether or not it is out of the predetermined range.

  In an embodiment of the present invention, it is preferable that the operation check instruction unit displays an inspection / adjustment instruction at the time of abnormality so that the device inspection value approaches the estimated value.

In the railway vehicle maintenance system according to the embodiment of the present invention, the sand consumption is estimated from the integration of the sanding command of the sanding device, and when the estimated value exceeds a predetermined value, the inspection instruction of the sand drill is displayed. It is desirable to provide a device state estimating means for performing the above.
In addition, if the comparison value between the inspection value of the amount of sand to be replenished at the time of sand inspection and the estimated value of sand consumption estimated by the equipment state estimation means exceeds the predetermined range, the inspection / adjustment instruction of the sand drilling device It is desirable to provide an operation confirmation instruction means for displaying the message.

In the railway vehicle maintenance system according to the embodiment of the present invention, there is provided equipment state estimation means for estimating the amount of stored water storage based on the accumulation of toilet flushing instructions and displaying a toilet water storage inspection instruction when the estimated value exceeds a predetermined value. It is desirable.
An operation for displaying a toilet inspection / adjustment instruction when a comparison value between the inspection value of the replenishment amount in the water storage inspection and the estimated value of the water storage amount estimated from the device state estimation means exceeds a predetermined range It is desirable to provide confirmation instruction means.

In the railway vehicle maintenance system according to the embodiment of the present invention, an apparatus state estimation means for estimating a sewage accumulation amount from an accumulation of toilet flushing instructions and displaying a toilet sewage inspection instruction when the estimated value exceeds a predetermined value. It is desirable to provide.
In addition, if the comparison value between the inspection value of the amount of sewage drainage in the sewage inspection and the estimated value of the amount of accumulated sewage estimated from the device state estimation means exceeds the predetermined range, a toilet inspection / adjustment instruction is displayed. It is desirable to provide an operation confirmation instruction means.

In the railway vehicle maintenance system according to the embodiment of the present invention, the wear state of the brake pad is estimated from the integration of the brake control command, and when the estimated value is larger than a predetermined value, the equipment state for displaying the brake pad inspection instruction It is desirable to provide estimation means.
If the comparison value between the inspection value of the brake pad wear thickness check result and the estimated value of the brake pad wear thickness estimated by the device state estimation means exceeds a predetermined range, a brake inspection / adjustment instruction is displayed. It is desirable to provide an operation confirmation instruction means.

In the railway vehicle maintenance system according to the embodiment of the present invention, the wear amount of the third rail shoe is estimated based on the integration of the third rail shoe lowering control command, and a third rail inspection instruction is issued when the estimated value exceeds a predetermined value. It is desirable to provide a device state estimation means for displaying.
In addition, if the comparison value between the inspection value of the third rail wear amount inspection result and the estimated value of the third rail wear amount estimated by the device state estimation means exceeds the predetermined range, the third rail device inspection / adjustment instruction It is desirable to provide an operation confirmation instruction means for displaying.

In the railway vehicle maintenance system of the embodiment of the present invention, the wear amount of the pantograph is estimated based on the integration of the pantograph raising command time, and when the estimated value exceeds a predetermined value, a pantograph inspection instruction is displayed. It is desirable to provide a device state estimation means.
In addition, if the comparison value between the inspection value of the pantograph wear amount inspection result and the estimated value of the pantograph wear amount estimated by the device state estimation means exceeds a predetermined range, an inspection / adjustment instruction for the pantograph device is displayed. It is desirable to provide an operation confirmation instruction means.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing an outline of the present invention. The equipment state estimation unit 101 of the railway vehicle maintenance system 100 calculates an estimated value of the equipment state (consumption amount / wear amount) based on the vehicle information collected from the vehicle. When the estimated value exceeds a predetermined value, a mail is sent to maintenance personnel instructing equipment inspection. Alternatively, an inspection instruction is displayed on the screen so that maintenance personnel inspect the target device. When the maintenance staff inspects the target device and inputs inspection values of the consumption amount and wear amount of the target device to the maintenance system, the operation check instruction unit 102 compares the estimated value with the inspection value. If the comparison value is larger than the predetermined range, it is determined that an abnormality has occurred in the target device, and an inspection / adjustment instruction is displayed so that the inspection value approaches the predetermined value. That is, in the present invention, by using the estimated information of the vehicle equipment not only for the inspection instruction display but also for the abnormality detection, it is possible to realize the abnormality detection and treatment (inspection / adjustment) of the target equipment that can easily be overlooked by the maintenance staff due to the state-based maintenance.

  FIG. 2 is a flowchart showing an outline of the present invention. In step S201, an estimated value of vehicle information (for example, integration of control commands, details will be described later in the embodiment) is calculated, and the consumption amount and wear amount of the target vehicle device are estimated. In step S202, it is determined whether or not the estimated value is larger than a predetermined value. If not, the process returns to step S201 to continue calculating the estimated value. If the estimated value is larger than the predetermined value in step S202, the process proceeds to step S203, and an inspection instruction for the target device is displayed.

  This inspection instruction display is performed until the maintenance person inputs an equipment inspection value in step S204. When the inspection value is input in step S204, it is determined in step S205 whether or not the comparison value between the device inspection value and the estimated value is outside a predetermined range. If the inspection value is outside the predetermined range, step S206 is determined. To notify that an abnormality has occurred in the device, and display an instruction for handling the abnormality on the maintenance system screen. In step S207, by resetting the estimated value, the process returns to step S201 to restart the calculation of the estimated value until the next inspection time. After the restart, the inspection instruction display in step S203 and the abnormal procedure display in step S207 are similarly repeated, and the process proceeds so that the estimated value approaches the inspection value.

FIG. 3 shows a time chart of estimated values. When a predetermined inspection reference value is exceeded, an inspection instruction is issued. In the normal state of FIG. 3A, the estimated value is reset when the inspection value is input.
3-2 is the same until the inspection instruction is issued when the inspection reference value is exceeded, but is different after the abnormality treatment instruction display is displayed. This is because the indication of abnormal treatment is displayed based on the comparison value between the estimated value and the test value, and both the test value and the estimated value are necessary for displaying the indication of the abnormal treatment.

  FIG. 4 is a diagram for explaining an application example of the present invention to a railway vehicle. A plurality of vehicles 401 are connected to the railcar 400, and each vehicle 401 includes a vehicle-mounted device 406 or a vehicle control device 407 such as a sand drill 402, a vehicle-mounted toilet 403, a brake control unit 404, and a pantograph 405. Is provided. The vehicle devices including these vehicle-mounted devices 406 or vehicle control devices 407 are connected by an on-board network 411, and each vehicle device is controlled by a control signal from the on-board control device 410.

  The on-board control device 410 collects vehicle information including a control signal for each vehicle device or an operation signal of each vehicle device via the on-board network 411, and for example, the on-board antenna 412 transmits the vehicle information to the ground control device 420 of the railway vehicle. Send. The vehicle information transmitted from the on-board antenna 412 of the on-vehicle control device 410 is received by the ground antenna 421 of the ground control device 420 and stored in the storage unit 423 via the transmission / reception unit 422.

  The storage unit 423 includes the functions of the equipment state estimation unit 101 and the operation check instruction unit 102 of the railway vehicle maintenance system 100. Under the control of the CPU 424, processing is performed according to the procedure shown in FIG. Necessary equipment inspection instructions are displayed on the terminal 425, and in response to input of equipment inspection values from maintenance personnel, necessary equipment inspection / adjustment instructions are displayed.

  A first embodiment of the present invention will be described with reference to FIGS. 5 and 6. This embodiment shows a case where the present invention is applied to state standard maintenance of a sand rolling device of a railway vehicle.

  FIG. 5 is an example of a screen presented to maintenance personnel when the present invention is applied. FIG. 5-1 estimates the amount of sand to be ejected from the integration of the sanding control command value in the flowchart described in FIG. 2, and is displayed when the estimated value exceeds the inspection reference value in the time chart shown in FIG. It is an example of a check instruction screen.

  The maintenance staff confirms the sand refilling method of the sand drill by selecting the button on the lower left of this screen, and selects the inspection value input button after completion of the replenishment operation, thereby displaying the inspection value input screen shown in FIG. Proceed to On the inspection value input screen, the amount of sand replenished by maintenance personnel is input as an inspection value.

  Here, in the maintenance system, the inspection value input by the maintenance staff is compared with the estimated value estimated from the integration of the sanding injection command value, and the abnormality of the sanding device is determined. FIG. 5-3 shows a case where the comparison value between the estimated value and the inspection value is out of the predetermined range. When the lower left inspection procedure button is selected, the inspection procedure is displayed according to the flowchart described later.

  FIG. 6 shows an example of a flowchart when the sand drill is determined to be abnormal. In step S501, it is determined whether or not the sign of the estimated value difference (comparison value) is positive from the inspection value. If positive, the process proceeds to step S502. If not, the process proceeds to step S505. Here, the comparison value being positive means that the consumption of sand is larger than that in the normal state. In step S502, there is no abnormality such as a hole or a crack in the tank for storing the sand in order to investigate the cause. Displays instructions for checking.

  Next, in step S503, whether or not there is an abnormality in the tank is input to the system. When the tank abnormality is input to the maintenance system, the process proceeds to step S504, where the tank repair procedure is displayed and the abnormality treatment is terminated. Next, step S505 shows a case where no abnormality is found in the tank. Here, based on the comparison value, a method for checking whether the sand spray amount of the sand drill is larger or smaller than the specified value. indicate.

  If it is input to the maintenance system that there is an injection abnormality in step S506, the process proceeds to step S507, and means for adjusting the injection amount to a specified value is displayed. If no abnormality is detected in step S506, an abnormality in the inspection device or an input error in the inspection value is suspected, and a procedure for confirming them is displayed in step S508.

  In this embodiment, the amount of sand remaining in the sand drill is estimated from the integration of the sand injection command value, and when the estimated amount of sand is greater than a predetermined value (for example, 80% of the total amount of the tank), the sand is removed. Notify email or screen to refill. Further, the sand replenishment amount replenished at that time is inputted as an inspection value to the maintenance system, so that the abnormality of the sand drill is automatically detected by the maintenance system. In addition, by displaying the inspection procedure according to the comparison value between the estimated value and the inspection value, even when the maintenance staff is not familiar with the maintenance work of the sand drill, the maintenance work can be performed efficiently.

  A second embodiment of the present invention will be described with reference to FIGS. The present embodiment shows a case where the present invention is applied to state standard maintenance of a railway vehicle toilet.

  FIG. 7 is an example of a screen presented to maintenance personnel when the present invention is applied. FIG. 8A is an inspection instruction displayed when the consumption of water used is estimated from the integration of the flush control command value in the flowchart of FIG. 2 and the estimated value exceeds the inspection reference value in the time chart of FIG. It is an example of a screen. The maintenance staff confirms the water replenishment method of the flush toilet by pressing the button at the lower left of this screen, and proceeds to the inspection value input screen shown in FIG. 7-2 by pressing the inspection value input button after completion of the replenishment operation.

  On the inspection value input screen, the amount of water replenished by maintenance personnel is input as an inspection value. Here, the maintenance system compares the inspection value input by the maintenance staff with the estimated value estimated from the integration of the flush control command value, and determines the abnormality of the flush toilet. FIG. 7C shows a case where the comparison value between the estimated value and the inspection value is out of the predetermined range. When the lower left inspection procedure button is pressed, the inspection procedure is displayed according to the flowchart described later.

  FIG. 8 shows an example of a flowchart when it is determined that the flush toilet is abnormal. In step S701, it is determined whether or not the sign of the estimated value difference (comparison value) is positive from the inspection value. If positive, the process proceeds to step S702. If not, the process proceeds to step S705. Here, the comparison value being positive means that the amount of water consumption is larger than that in the normal state. In step S702, there is no abnormality such as a hole or a crack in the water storage tank in order to investigate the cause. Displays instructions for checking.

  Next, when it is input to the maintenance system that there is a tank abnormality in the tank in step 703, the process proceeds to step S704, the tank repair procedure is displayed, and the abnormality treatment is terminated. Next, step S705 shows a case where no abnormality is found in the tank, and here, a method for checking whether the amount of water washed once is larger or smaller than the specified value based on the comparison value is displayed.

  In step S706, if an abnormality in the washing amount is found, the maintenance system inputs that there is an abnormality in washing, and means for adjusting the washing amount to a specified value is displayed in step S707. If no abnormality is detected in step S706, an abnormality in the inspection device or an input error in the inspection value is suspected, and a procedure for confirming them is displayed in step S708.

  In this embodiment, the remaining amount of water in the flush toilet is estimated from the accumulation of flush command values, and water is replenished when the estimated value of water usage is greater than a predetermined value (for example, 80% of the total amount of the tank). Inform inspection instructions as follows. In addition to this, by inputting the water replenishment amount replenished at that time as an inspection value, the system automatically detects an abnormality of the flush toilet and displays the inspection procedure according to the comparison value between the estimated value and the inspection value. Therefore, even when the maintenance staff is not familiar with the maintenance of the flush toilet, the maintenance work can be carried out efficiently.

  FIG. 9 is another example of a screen presented to maintenance personnel when the present invention is applied. FIG. 9A is a warning screen displayed when the consumption of water used is estimated from the integration of the flush control command value in the flowchart of FIG. 2 and the estimated value exceeds the inspection reference value in the time chart of FIG. It is an example. The maintenance staff presses the button at the lower left of this screen to confirm how to drain sewage from the flush toilet, and selects the inspection value input button after completion of the extraction operation, and then proceeds to the inspection value input screen shown in FIG. 9-2. .

  On the inspection value input screen, the amount of water extracted by maintenance personnel is input as an inspection value. Here, the maintenance system compares the inspection value input by the maintenance staff with the estimated value estimated from the integration of the flush control command value, and determines the abnormality of the flush toilet. FIG. 9-3 shows a case where the comparison value between the estimated value and the inspection value is out of the predetermined range. When the lower left inspection procedure button is pressed, the inspection procedure is displayed according to the flowchart described later.

  FIG. 10 shows another example of a flowchart when it is determined that the flush toilet is abnormal. In step S901, it is determined whether or not the sign of the estimated value difference (comparison value) is positive from the inspection value. If positive, the process proceeds to step S902. If not, the process proceeds to step S905. Here, the negative comparison value means that the accumulated amount of sewage is less than normal. In step S902, in order to investigate the cause, there is no abnormality such as a hole or crack in the sewage storage tank. Displays instructions for checking.

  Next, when it is input to the maintenance system that there is a tank abnormality in step S903, the process proceeds to step S904, the tank repair procedure is displayed, and the abnormality treatment ends. Step S905 shows a case where no abnormality is found in the tank, and here, a method for checking whether the amount of water washed once is larger or smaller than the specified value is displayed.

  If an abnormality in the amount of washing is found, input to the maintenance system that there is an abnormality in washing in step S906, and an adjustment procedure for adjusting the amount of washing to the specified value is displayed in step S907. If no abnormality is detected in step S906, an abnormality in the inspection device or an input error in the inspection value is suspected, and a procedure for confirming them is displayed in step S908.

  In this embodiment, the amount of sewage in the flush toilet is estimated from the accumulation of the flush command value, and when the estimated value of the sewage amount exceeds a predetermined value (for example, 80% of the total amount of the tank), the sewage is inspected. By issuing an instruction and inputting the amount of sewage collected at that time as an inspection value, the system automatically detects an abnormality in the flush toilet and performs an inspection procedure according to the comparison between the estimated value and the inspection value. By displaying, maintenance work can be carried out efficiently even if the maintenance staff is not familiar with the maintenance of the flush toilet.

  A third embodiment of the present invention will be described with reference to FIGS. 11 and 12. The present embodiment shows a case where the present invention is applied to state standard maintenance of a railway vehicle brake.

  FIG. 11 is an example of a screen presented to maintenance personnel when the present invention is applied. FIG. 11-1 is an inspection instruction screen displayed when the brake wear amount is estimated from the integration of the brake control command value in the flowchart described in FIG. 2 and the estimated value exceeds the inspection reference value in the time chart of FIG. is there.

  The maintenance staff confirms the brake pad replacement method by pressing the button at the lower left of this screen, and proceeds to the inspection value input screen shown in FIG. 11-2 by selecting the inspection value input button after completing the replacement work. On the inspection value input screen, the wear amount of the brake pad replaced by the maintenance staff is input as the inspection value. In the maintenance system, the inspection value input by the maintenance staff is compared with the estimated value estimated from the integration of the brake command value, and brake abnormality is determined.

  FIG. 11C shows a case where the comparison value between the estimated value and the inspection value is out of the predetermined range. When the lower left inspection procedure button is pressed, the inspection procedure is displayed according to the flowchart described later. In FIG. 11-2, the remaining thickness may be input instead of the brake pad wear amount, and the wear amount may be calculated from the new thickness and the input remaining thickness on the maintenance system.

  FIG. 12 shows an example of a flowchart when it is determined that the brake is abnormal. In step S1101, it is determined whether or not the sign of the estimated value difference (comparison value) is negative from the inspection value. If negative, the process proceeds to step S1102, and if not, the process proceeds to step S1105. Here, the negative comparison value means that the amount of wear of the brake is smaller than that in the normal state. In step S1102, there is no abnormality in the brake stroke (whether the stroke is not short) to investigate the cause. Displays instructions for checking.

  Next, in step S1103, whether or not there is an abnormality in the brake stroke is input to the system. If there is an input that there is an abnormality in the stroke, a procedure for adjusting the brake stroke is displayed in step S1104, and the abnormality treatment ends. Next, step S1105 shows a case where no abnormality is found in the brake stroke. Here, a method for checking whether the brake pressure is higher or lower than the specified value is displayed based on the sign of the comparison value. . Specifically, if the comparison value is positive, the pressure is excessive, and if the comparison value is negative, the pressure is excessive. A means for inspecting and adjusting these is displayed.

  In step S1106, when the brake pressure abnormality is input to the maintenance system, a means for adjusting the brake pressure to a specified value is displayed in step S1107. If no abnormality is detected in step S1106, an abnormality in the inspection device or an input error in the inspection value is suspected, and a procedure for confirming them is displayed in step S1108.

  In this embodiment, the wear amount of the brake pad is estimated from the integration of the brake command value, and an inspection instruction is issued so that the brake pad is replaced when the estimated value of the brake usage exceeds a predetermined value. Moreover, by inputting the brake pad wear amount replaced at that time as an inspection value to the system, the brake abnormality is automatically detected by the system, and the inspection procedure according to the comparison value between the estimated value and the inspection value is displayed. Even if the maintenance staff is unfamiliar with brake maintenance, maintenance work can be performed efficiently.

  A fourth embodiment of the present invention will be described with reference to FIGS. 13 and 14. The present embodiment shows a case where the present invention is applied to state standard maintenance of a railway vehicle brake.

  FIG. 13 is an example of a screen presented to maintenance personnel when the present invention is applied. FIG. 13-1 is a flowchart illustrating the third rail wear control amount estimated from the integration of the third rail shoe control command value in the flowchart described in FIG. 2, and the inspection displayed when the estimated value exceeds the inspection reference value in the time chart of FIG. It is an instruction screen.

  The maintenance staff confirms the replacement method of the third rail shoe by pressing the button at the lower left of this screen, and proceeds to the inspection value input screen shown in FIG. 13-2 by pressing the inspection value input button after the replacement work is completed. On the inspection value input screen, the wear amount of the third rail shoe replaced by the maintenance staff is input as the inspection value.

  In the maintenance system, the inspection value input by the maintenance staff is compared with the estimated value estimated from the integration of the third rail shoe control command value, and the abnormality of the third rail is determined. FIG. 13C shows a case where the comparison value between the estimated value and the test value is out of the predetermined range. When the lower left test procedure button is pressed, the test procedure is displayed according to the flowchart described later.

  FIG. 14 shows an example of a flowchart when the third rail is determined to be abnormal. In step S1301, it is determined whether or not the sign of the estimated value difference (comparison value) is negative from the inspection value. If negative, the process proceeds to step S1305, and if not, the process proceeds to step S1302. Here, if the comparison value is negative, it means that the amount of wear of the third rail is smaller than normal. In step S1302, whether or not there is an abnormality in the stroke of the third rail control to investigate the cause (whether the stroke is Display instructions to check if it is too short.

  In step 1303, if there is an abnormality in the third rail control stroke input to the maintenance system, a procedure for adjusting the third rail stroke is displayed in step S1304, and the abnormality treatment is terminated. Step S1305 shows a case where no abnormality was found in the third rail control stroke. Here, a method for checking whether the third rail pressure is higher or lower than the specified value based on the sign of the comparison value is displayed. To do.

  Specifically, if the comparison value is positive, the pressure is excessive, and if the comparison value is negative, the pressure is excessive. A means for inspecting and adjusting these is displayed. If an abnormality in the third rail pressure is found in step S1306, if a third rail pressure abnormality is input to the maintenance system, a means for adjusting the third rail pressure to a specified value is displayed in step S1307. If no abnormality is detected in step S1306, an abnormality in the inspection device or an input error in the inspection value is suspected, and a procedure for confirming them is displayed in step S1308.

  In this embodiment, the wear amount of the third rail shoe is estimated from the integration of the third rail control command value, and the third rail shoe is inspected to be replaced when the estimated value of the third rail shoe wear amount exceeds a predetermined value. Issue instructions. In addition, by inputting the third rail shoe wear amount replaced at that time as an inspection value, the system automatically detects the abnormality of the third rail and displays the inspection procedure according to the comparison value between the estimated value and the inspection value. Therefore, even if the maintenance staff is not familiar with the maintenance of the third rail, the maintenance work can be performed efficiently.

  A fifth embodiment of the present invention will be described with reference to FIGS. 15 and 16. This embodiment shows a case where the present invention is applied to state standard maintenance of a railcar pantograph.

  FIG. 15 is an example of a screen presented to maintenance personnel when the present invention is applied. FIG. 15A is a warning screen displayed when the pantograph shoe wear amount is estimated from the integration of the pantograph control command values in the flowchart described in FIG. 2 and the estimated value exceeds the warning reference value in the time chart of FIG. It is.

  The maintenance staff confirms the replacement method of the pantograph shoe by pressing the button at the lower left of this screen, and proceeds to the inspection value input screen shown in FIG. On the inspection value input screen, the wear amount of the pantograph shoe replaced by the maintenance staff is input as the inspection value.

  In the maintenance system, the inspection value input by the maintenance staff is compared with the estimated value estimated from the integration of the pantograph command value, and an abnormality of the pantograph is determined. FIG. 15C shows a case where the comparison value between the estimated value and the inspection value is out of the predetermined range. When the lower left inspection procedure button is pressed, the inspection procedure is displayed according to the flowchart described later.

  FIG. 16 shows an example of a flowchart when the pantograph is determined to be abnormal. In step S1501, it is determined whether or not the sign of the estimated value difference (comparison value) is negative from the inspection value. If negative, the process proceeds to step S1505. If not, the process proceeds to step S1502. Here, the negative comparison value means that the amount of wear of the pantograph is smaller than that at the normal time. In step S1502, whether or not the pantograph stroke is abnormal (whether the stroke is not short) to investigate the cause. Displays instructions for checking.

  Next, if it is input in step S1503 that there is an abnormality in the pantograph stroke, a procedure for adjusting the pantograph stroke is displayed in step S1504, and the abnormality treatment is terminated. Next, step S1505 shows a case where no abnormality was found in the pantograph stroke. Here, a method for checking whether the pressing pressure of the pantograph is larger or smaller than the specified value based on the sign of the comparison value is displayed. To do.

  Specifically, if the comparison value is positive, the pressure is excessive, and if the comparison value is negative, the pressure is excessive. A means for inspecting and adjusting these is displayed. In step S1506, if a pantograph pressure abnormality is input to the maintenance system, means for adjusting the pantograph pressing pressure to a specified value is displayed in step S1507. If no abnormality is detected in step S1506, an abnormality in the inspection device or an input error in the inspection value is suspected, and a procedure for confirming them is displayed in step S1508.

  In this embodiment, the wear amount of the pantograph shoe is estimated from the integration of the pantograph control command value, and an inspection instruction is issued so that the pantograph shoe is replaced when the estimated value of the pantograph shoe wear amount exceeds a predetermined value. I will inform you. In addition, the pantograph shoe wear amount replaced at that time is input to the system as an inspection value, so that the pantograph abnormality is automatically detected by the maintenance system, and the inspection procedure according to the comparison value between the estimated value and the inspection value is displayed. Thus, even if the maintenance staff is not familiar with pantograph maintenance, the maintenance work can be performed efficiently.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.

  Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  In addition, each of the above-described configurations, functions, processing units, processing procedures, and the like may be realized in hardware by designing some or all of them, for example, with an integrated circuit. Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function can be stored in a storage device or a recording medium.

  Further, the control lines and information lines indicate what is considered necessary for explanation, and do not necessarily indicate all the control lines and information warfare provided in the product. Actually, it may be considered that almost all the components are connected to each other.

DESCRIPTION OF SYMBOLS 101 Apparatus state estimation means 102 Operation | movement confirmation instruction | indication means 400 Railway vehicle 401 Vehicle 402 Sanding machine 403 Vehicle-mounted toilet 404 Brake control part 405 Pantograph 406 Vehicle-mounted equipment 410 On-board controller 411 On-board network 412 On-board antenna 420 Ground controller 421 Ground antenna 422 Transmission / reception unit 423 Storage unit 424 CPU
425 display terminal

Claims (15)

An equipment state estimation unit that calculates an estimated value of the state of the vehicle equipment based on the vehicle information collected from the railway vehicle and displays an inspection instruction;
An operation check instruction unit for determining an abnormality of the vehicle device based on the estimated value and a device inspection value input by a maintenance person, and displaying an inspection / adjustment instruction in the case of the abnormality; Railway vehicle maintenance system. The railway vehicle maintenance system according to claim 1,
The device state estimation unit is configured to control the plurality of vehicle devices mounted on the plurality of rail vehicles based on the vehicle information received from the onboard control device of the rail vehicle that collects the vehicle information. Calculate an estimated value of the state of the vehicle equipment, display an inspection instruction of the vehicle equipment in which the estimated value exceeds a predetermined threshold,
The operation check instruction unit determines whether or not a comparison value between the estimated value and a device inspection value input by a maintenance worker who has inspected the vehicle device is outside a predetermined range. A railway vehicle maintenance system that displays inspection and adjustment instructions when out of range.   The railway vehicle maintenance system according to claim 1 or 2, wherein the operation check instruction unit displays an inspection / adjustment instruction at the time of abnormality so that the device inspection value approaches the estimated value. Vehicle maintenance system.   The maintenance system for a railway vehicle according to claim 1 or 2, wherein the sand consumption is estimated from integration of the sanding command of the sanding device, and when the estimated value exceeds a predetermined value, an instruction to inspect the sand drill is issued. A railway vehicle maintenance system comprising a device state estimation means for displaying.   5. The railway vehicle maintenance system according to claim 4, wherein a comparison value between an inspection value of the amount of sand to be replenished during sand inspection and an estimated value of sand consumption estimated by the equipment state estimation means exceeds a predetermined range. A railway vehicle maintenance system comprising: an operation confirmation instruction means for displaying an inspection / adjustment instruction for a sanding device if there is.   3. A railway vehicle maintenance system according to claim 1 or 2, further comprising: a device state estimating means for estimating a water storage usage amount from an accumulation of toilet flush instructions and displaying a toilet water storage check instruction when the estimated value exceeds a predetermined value. A railway vehicle maintenance system characterized by comprising.   The railway vehicle maintenance system according to claim 6, wherein a comparison value between the inspection value of the water replenishment amount in the water storage inspection and the estimated value of the water storage usage estimated from the device state estimation means exceeds a predetermined range. Is a maintenance system for railway vehicles, comprising operation confirmation instruction means for displaying toilet inspection / adjustment instructions.   3. The railway vehicle maintenance system according to claim 1 or 2, wherein a sewage accumulation amount is estimated from an accumulation of toilet flushing instructions, and a toilet sewage inspection instruction is displayed when the estimated value exceeds a predetermined value. A railway vehicle maintenance system characterized by comprising:   9. The railway vehicle maintenance system according to claim 8, wherein a comparison value between an inspection value of the amount of sewage drainage in the sewage inspection and an estimated value of the amount of accumulated sewage estimated from the device state estimation means exceeds a predetermined range. A railway vehicle maintenance system comprising operation confirmation instruction means for displaying a toilet inspection / adjustment instruction.   3. The railway vehicle maintenance system according to claim 1, wherein the wear thickness of the brake pad is estimated from integration of brake control commands, and a brake pad inspection instruction is displayed when the estimated value is larger than a predetermined value. A railway vehicle maintenance system comprising a state estimating means.   11. The railway vehicle maintenance system according to claim 10, wherein a comparison value between an inspection value of a brake pad wear thickness check result and an estimated value of the brake pad wear thickness estimated by the device state estimating means exceeds a predetermined range. A railway vehicle maintenance system comprising operation confirmation instruction means for displaying a brake inspection / adjustment instruction.   The maintenance system for a railway vehicle according to claim 1 or 2, wherein a wear amount of the third rail shoe is estimated based on integration of a lower rail shoe lowering control command, and if the estimated value exceeds a predetermined value, a third rail inspection instruction is issued. A railway vehicle maintenance system comprising equipment state estimation means for displaying   13. The railway vehicle maintenance system according to claim 12, wherein a comparison value between the inspection value of the third rail wear amount inspection result and the estimated value of the third rail wear amount estimated by the equipment state estimating means exceeds a predetermined range. A railway vehicle maintenance system comprising an operation confirmation instruction means for displaying an inspection / adjustment instruction for a third rail device when there is a vehicle.   3. The railway vehicle maintenance system according to claim 1 or 2, wherein a wear amount of the pantograph is estimated based on an accumulation of a pantograph raising command time, and a pantograph inspection instruction is displayed when the estimated value exceeds a predetermined value. A railway vehicle maintenance system comprising a device state estimation means for performing the operation.   15. The railway vehicle maintenance system according to claim 14, wherein a comparison value between the inspection value of the pantograph wear amount inspection result and the estimated value of the pantograph wear amount estimated by the device state estimating means exceeds a predetermined range. Is a railway vehicle maintenance system comprising operation check instruction means for displaying inspection and adjustment instructions for a pantograph device.

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