Display device, display system, and in-vehicle information display method

Abstract

A train operation table display device (100) comprises: a drawing processing unit (20) that displays the state of an apparatus mounted in a car of a train; a signal conversion unit (80) that performs conversion of a first signal, which is a signal for acquiring information on the state of the apparatus and which is based on the format of case-by-case basis train configuration information representing a train configuration as an array of cars which is defined by a railway company, into the format of vendor train configuration information representing a train configuration as an array of cars which is defined by the train operation table display device (100), and that performs conversion, from the format of the vendor train configuration information into the format of the case-by-case basis train configuration information, of a second signal representing information on the state of the apparatus and obtained on the basis of the converted first signal; and a data collection unit (30) that generates the first signal, outputs the first signal after the conversion by the signal conversion unit (80) to an in-car information provision unit (60), acquires the second signal from the in-car information provision unit (60), and stores, in the drawing processing unit (20), the value of the second signal after the conversion by the signal conversion unit (80).

Description

Technical Field

[0001] The present disclosure relates to a display device mounted on the driver's cab of a train, a display system, and an in-vehicle information display method.

Background Art

[0002] Conventionally, a display device mounted on the driver's cab of a train displays the status of devices mounted on the train vehicles on a display screen. Patent Document 1 discloses a technology for a railway vehicle management device that automatically generates a display screen for railway vehicle information. The railway vehicle management device described in Patent Document 1 holds various definition files and generates a display screen for railway vehicle information based on vehicle status information and definition information. Even when the number of vehicles increases or decreases, the display screen for railway vehicle information can be variably displayed by changing the formation definition.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Regarding the arrangement of train cars, or train configuration, there are considered to be two ways of understanding it: the train configuration defined by the railway operator, and the train configuration defined by the vendor of display devices such as TCMS (Train Control and Management System). If both are the same train configuration, no special processing is required, but if they are different, processing to convert the train configurations between them is necessary. However, the conventional technology described above does not take into account that there are two ways of understanding train configuration. Therefore, there was a problem that it may not be applicable when the two train configurations are different. Even when converting train configurations between them during actual operation, depending on the conversion method, the computational load of the conversion process may be high, and if the amount of settings required for the conversion process is enormous, the setting load will also be high.

[0005] This disclosure is made in view of the above, and aims to provide a display device that can display information on the status of equipment installed on a vehicle in the train configuration specified by the railway operator, while reducing the load of setting and conversion processing, even when the prescribed train configuration differs from the train configuration specified by the railway operator. [Means for solving the problem]

[0006] To solve the above-mentioned problems and achieve the objective, this disclosure provides a display device mounted in the driver's cab of a train. The display device is characterized by comprising: a drawing processing unit that displays the status of equipment mounted on the train cars; a signal conversion unit that converts a first signal, which is a signal for acquiring information on the status of equipment and is based on the format of case-based train configuration information that indicates the configuration of a train in an array of vehicles defined by the railway operator operating the train, from the format of case-based train configuration information to the format of vendor train configuration information that indicates the configuration of a train in an array of vehicles defined by the display device, and converts a second signal, which indicates information on the status of equipment obtained based on the converted first signal, from the format of vendor train configuration information to the format of case-based train configuration information; and a data collection unit that generates the first signal, outputs the first signal converted by the signal conversion unit to an on-board information provision unit that provides information on the status of equipment, acquires a second signal from the on-board information provision unit as a response to the converted first signal, and stores the value of the second signal converted by the signal conversion unit in the drawing processing unit. [Effects of the Invention]

[0007] The display device of this disclosure has the effect of being able to display information on the status of equipment installed on the train in the train configuration specified by the railway operator, even when the specified train configuration differs from the train configuration specified by the railway operator, while reducing the load of setting and conversion processing. [Brief explanation of the drawing]

[0008] [Figure 1] Block diagram showing an example configuration of the display system according to Embodiment 1. [Figure 2] This figure shows an example of the train configuration assumed in the train driver's cab display device according to Embodiment 1. [Figure 3] Figure 1 shows an example of a train formation coupling assumed in the train driver's cab display device according to Embodiment 1. [Figure 4] Figure 2 shows an example of a train formation coupling assumed in the train driver's cab display device according to Embodiment 1. [Figure 5]A flowchart illustrating the operation when the train driver's cab display device according to Embodiment 1 is started up, or when the train configuration changes due to the addition or removal of a train. [Figure 6] This figure shows an example of a table of case-based train configuration information generation rules held by the case-based train configuration information generation rule holding unit of the train driver's cab display device according to Embodiment 1. [Figure 7] Figure 1 shows an example of vendor train configuration information acquired by the case reference train configuration information generation unit of the train driver's cab display device according to Embodiment 1, and the generated case reference train configuration information. [Figure 8] Figure 2 shows an example of vendor train configuration information acquired by the case reference train configuration information generation unit of the train driver's cab display device according to Embodiment 1, and the generated case reference train configuration information. [Figure 9] This figure shows an example of the display configuration when the train driver's cab display device according to Embodiment 1 displays the status of the equipment on the display screen of the output device. [Figure 10] This figure shows an example of how the display screen that the train driver's cab display device according to Embodiment 1 displays on the output device is modularized into multiple drawing components. [Figure 11] This figure shows an example of a drawing component 1 displayed by the drawing processing execution unit of the train driver's cab display device according to Embodiment 1. [Figure 12] This figure shows an example of a drawing table for drawing component 1 held by the train driver's cab display device according to Embodiment 1. [Figure 13] This figure shows an example of a signal definition held by the signal definition holding unit of the train driver's cab display device according to Embodiment 1 for use with the drawing component 2. [Figure 14] A flowchart illustrating the operation of the train driver's cab display device according to Embodiment 1, which displays the status of equipment installed in each car of the train. [Figure 15] This figure shows an example of a processing circuit for realizing the train driver's cab display device according to Embodiment 1, which is configured with a processor and memory. [Figure 16] This figure shows an example of a case where the processing circuit for realizing the train driver's cab display device according to Embodiment 1 is configured with dedicated hardware. [Figure 17]Block diagram showing a configuration example of the display system according to Embodiment 2 [Figure 18] Flowchart showing the operation of the train cab display device according to Embodiment 2 for displaying the states of devices mounted on each vehicle of the train

Embodiments for Carrying Out the Invention

[0009] Hereinafter, a display device, a display system, and an in-vehicle information display method according to embodiments of the present disclosure will be described in detail based on the drawings.

[0010] Embodiment 1. FIG. 1 is a block diagram showing a configuration example of a display system 110 according to Embodiment 1. The display system 110 includes a train cab display device 100 and a drawing component generation device 90. The train cab display device 100 is mounted on the cab of a train (not shown) and is a display device that displays on a display screen the states of devices mounted on each vehicle constituting the train. The train cab display device 100 is, for example, a TCMS, but is not limited thereto. The devices mounted on each vehicle are, for example, DOOR (door), BRAKE, HVAC (Heating Ventilation Air Conditioning), PEI (Passenger Emergency Intercom), and the like. In the following description, the fact that the train cab display device 100 displays the state of a device on the display screen may be expressed as the train cab display device 100 drawing the state of the device on the display screen.

[0011] The drawing component generation device 90 generates drawing components used by the train cab display device 100 when the train cab display device 100 displays the state of a device mounted on a train vehicle using the drawing components on the display screen. The drawing component generation device 90 receives an input of information necessary for generating drawing components from a user and generates drawing components used by the train cab display device 100. Further, the drawing component generation device 90 receives from the user a signal definition that is the source of a first signal for requesting information on the state of a device mounted on a vehicle, which will be described later.

[0012] Here, when the train cab display device 100 is installed and the train to be displayed on the train cab display device 100 is composed of a plurality of vehicles, it is common to assign vehicle numbers such as car No. 1, car No. 2, … from one of the vehicles at both ends of the train. As will be described later, the train cab display device 100 displays the status of equipment installed in each vehicle on the display screen in the order of the vehicles of the train. The vehicle designated as car No. 1 is arranged and displayed on the left or right side of the display screen. However, various methods can be considered regarding which of the vehicles at both ends of the train is set as car No. 1. For example, a vehicle on a specific traveling direction side with respect to the traveling direction of the train is set as car No. 1. In the case where the train has a configuration in which a plurality of formations are connected, the vehicle at the end with the smaller or larger identification number of the formations at both ends is set as car No. 1. Among the vehicles at both ends of the train, a vehicle of a specific vehicle type is set as car No. 1, and so on.

[0013] Regarding such an arrangement of vehicles, that is, the way of grasping the train configuration, there is no particular problem when the train configuration determined by the railway operator operating the train is the same as the train configuration determined by the vendor of the train cab display device 100 as a standard based on specifications and the like. On the other hand, when the train configuration determined by the railway operator operating the train is different from the train configuration determined by the vendor of the train cab display device 100 as a standard based on specifications and the like, the train cab display device 10 needs to display the status of the equipment installed in the vehicles of the train on the display screen in the train configuration determined by the railway operator operating the train. However, since the train cab display device 100 collects information on the status of the equipment installed in the vehicles of the train in the form of the train configuration determined as a standard based on specifications and the like, a process such as reversing the vehicles to be displayed left and right is required when displaying on the display screen. However, as described above, when formations are added or separated in the train, it is conceivable that simply reversing the vehicles to be displayed left and right may not be sufficient. If we try to handle all patterns, depending on the conversion method, the load of the conversion process will increase, and the setting load will also increase because the amount of settings for the conversion process will become extremely large.

[0014] Therefore, this embodiment describes a train driver's cab display device 100 that can display information on the status of equipment mounted on the vehicle on the display screen of the output device 70, while suppressing the load of setting and conversion processing, even when the train configuration determined by the railway operator operating the train differs from the train configuration determined by the vendor of the train driver's cab display device 100 based on standards, etc. The train configuration information, which indicates the train configuration, includes information on the number of train formations, the number of train cars, the arrangement of the train cars, and the direction of travel of the train. There are two types: case-based train configuration information determined by agreement with the railway operator operating the train on a case-by-case basis, and train configuration information determined by the vendor of the train driver's cab display device 100 as a standard. In the following description, the former will be referred to as case-based train configuration information, and the latter as vendor train configuration information.

[0015] The configuration and operation of the train driver's cab display device 100 will be described below. The train driver's cab display device 100 includes an input device 10, a drawing processing unit 20, a data acquisition unit 30, a train configuration information provision unit 40, an onboard information transmission unit 50, an onboard information provision unit 60, an output device 70, and a signal conversion unit 80.

[0016] The input device 10 receives requests from users, such as drivers, for event information, such as the display of equipment status. The input device 10 is, for example, a switch, but it may also be a keyboard, mouse, etc. The input device 10 may also be used as a touch panel in conjunction with the output device 70.

[0017] The data collection unit 30 acquires vendor train configuration information from the train configuration information provision unit 40, which includes information on the number of train formations, the number of train cars, the arrangement of train cars, and the direction of travel of the train, obtained when an on-board information transmission unit 50 mounted on a vehicle communicates with on-board information transmission units 50 mounted on other vehicles, and outputs the acquired vendor train configuration information to the signal conversion unit 80. The data collection unit 30 acquires case reference train configuration information generated from the vendor train configuration information by the signal conversion unit 80 from the signal conversion unit 80. The data collection unit 30 also generates a first signal requesting information on the status of equipment mounted on a vehicle based on the signal definition that is the source of the first signal requesting information on the status of equipment mounted on the vehicle and the case reference train configuration information, and outputs it to the signal conversion unit 80. The signal conversion unit 80 outputs the converted first signal to the on-board information provision unit 60, which provides information on the status of the equipment. Furthermore, the data acquisition unit 30 acquires a second signal from the on-board information provision unit 60 as a response to the converted first signal, and the signal conversion unit 80 converts the value of the second signal, and the drawing processing unit 20 controls the storage position based on signal mapping information, which is information that specifies the arrangement of vehicles on the display screen of the output device 70 where the status of the equipment is displayed, and stores it in the drawing processing unit 20.

[0018] The data acquisition unit 30 includes a signal mapping management unit 31, a train information acquisition unit 32, a signal definition holding unit 33, a signal mapping generation unit 34, and a signal data storage unit 35.

[0019] The signal mapping management unit 31 acquires case-based train configuration information, which includes information on the number of train formations, the number of train cars, the arrangement of the train cars, and the direction of travel, from the train information collection unit 32. The signal mapping management unit 31 also generates a first signal based on the signal definition and the acquired case-based train configuration information, outputs the generated first signal to the train information collection unit 32, and requests information on the status of the equipment from the train information collection unit 32. The signal definition is the basis for the first signal that requests information on the status of the equipment installed on the vehicle, and is held in the signal definition holding unit 33. The signal mapping management unit 31 also outputs case-based train configuration information, which includes information on the number of train formations, the number of train cars, the arrangement of the train cars, and the direction of travel, to the signal mapping generation unit 34 and the signal data storage unit 35.

[0020] When the train information collection unit 32 obtains vendor train configuration information from the train configuration information provision unit 40, it outputs the obtained vendor train configuration information to the case reference train configuration information generation unit 81 of the signal conversion unit 80 and requests case reference train configuration information. When the train information collection unit 32 obtains case reference train configuration information from the case reference train configuration information generation unit 81 of the signal conversion unit 80, it outputs the obtained case reference train configuration information to the signal mapping management unit 31. The train information collection unit 32 may request and obtain vendor train configuration information from the train configuration information provision unit 40 when requested by the signal mapping management unit 31, or it may periodically request and obtain vendor train configuration information from the train configuration information provision unit 40.

[0021] Furthermore, when the train information collection unit 32 receives a first signal from the signal mapping management unit 31, it outputs the first signal, which contains the train formation number and vehicle number in the format of case reference train configuration information, to the train formation vehicle number conversion unit 84 of the signal conversion unit 80, requesting conversion to the first signal, which contains the train formation number and vehicle number in the format of vendor train configuration information. When the train information collection unit 32 receives the first signal converted to the format of vendor train configuration information from the train formation vehicle number conversion unit 84 of the signal conversion unit 80, it outputs the acquired converted first signal to the on-board information provision unit 60, which provides information on the status of the equipment. The train information collection unit 32 receives a second signal from the on-board information provision unit 60 as a response to the converted first signal. The value of the second signal is information on the status of equipment installed on its own vehicle and other vehicles.

[0022] When the train information collection unit 32 receives the second signal from the onboard information provision unit 60, it outputs the second signal, which contains the train set number and vehicle number in the format of vendor train configuration information, to the train set vehicle number conversion unit 84 of the signal conversion unit 80, requesting conversion to the second signal, which contains the train set number and vehicle number in the format of case reference train configuration information. When the train information collection unit 32 receives the second signal converted to the format of case reference train configuration information from the train set vehicle number conversion unit 84 of the signal conversion unit 80, it outputs the value of the obtained converted second signal to the signal data storage unit 35. In cases where there is no information on the train set number, such as when the train consists of only one train set, the train set vehicle number conversion unit 84 of the signal conversion unit 80 may only convert the vehicle number. The same applies to subsequent steps.

[0023] The signal definition holding unit 33 holds the signal definition that forms the basis of the first signal requesting information about the status of equipment mounted on the vehicle. The signal definition is information corresponding to the equipment status items that the drawing processing unit 20 displays on the output device 70. For the signal definition, a user such as a train operation manager assigns signals in the drawing component generation device 90 corresponding to the equipment status items that the drawing processing unit 20 displays on the output device 70, and sets them in the signal definition holding unit 33 in advance.

[0024] The signal mapping generation unit 34 generates signal mapping information based on the case reference train configuration information obtained from the signal mapping management unit 31 and outputs it to the signal data storage unit 35. The signal mapping information specifies the arrangement of vehicles on the display screen of the output device 70, where the status of the equipment is displayed by the drawing processing unit 20. Specifically, the signal mapping information indicates which side of the display screen, for example, the left or right side, the leading or trailing vehicle of the train formation should be placed on.

[0025] The signal data storage unit 35 holds the converted second signal value obtained from the train information collection unit 32 at the request of the signal mapping management unit 31. Based on the signal mapping information obtained from the signal mapping generation unit 34, the signal data storage unit 35 controls the storage position of the converted second signal value in the drawing data holding unit 22 of the drawing processing unit 20, and stores the converted second signal value in the drawing data holding unit 22.

[0026] The drawing processing unit 20 displays the status of equipment mounted on the train cars on the output device 70. The drawing processing unit 20 comprises an event reception unit 21, a drawing data holding unit 22, a drawing processing execution unit 23, and a drawing component holding unit 24. The event reception unit 21 outputs user event information received by the input device 10 to the data collection unit 30. The drawing data holding unit 22 holds the drawing data, which is the value of the second signal after conversion stored by the data collection unit 30, in a drawing table in units of drawing components, which are generated by the drawing component generation device 90 and whose display content is modularized to be displayed on the display screen. The drawing processing execution unit 23 displays the status of the equipment on the display screen of the output device 70 using multiple drawing components, based on the drawing components held in the drawing component holding unit 24 and the drawing data held in the drawing table of the drawing data holding unit 22. The drawing component holding unit 24 holds the drawing components generated by the drawing component generation device 90.

[0027] The train configuration information provision unit 40 outputs vendor train configuration information to the train information collection unit 32 upon request from the train information collection unit 32. Here, each vehicle constituting the train is equipped with an on-board information transmission unit 50. The train configuration information provision unit 40 can determine the number of on-board information transmission units 50 in the train, i.e., the number of vehicles in the train, which formation each vehicle belongs to, and the number of train formations, from the content of signals from on-board information transmission units 50 installed in other vehicles that it has obtained from the on-board information transmission unit 50 50. In addition, when the on-board information transmission unit 50 installed in the leading vehicle in the direction of travel of the train outputs information such as the usage status of the driver's cab to the on-board information transmission units 50 of other vehicles, the train configuration information provision unit 40, which has obtained information on the usage status of the driver's cab via the on-board information transmission unit 50, can determine the direction of travel of the train. The train configuration information provision unit 40 generates vendor train configuration information including the number of train formations, the number of vehicles in the train, the arrangement of the vehicles in the train, and the direction of travel of the train, and outputs it to the train information collection unit 32.

[0028] The onboard information transmission unit 50 is installed in each car that makes up the train, and acquires information such as the status of equipment installed in other cars via the onboard information transmission unit 50 installed in other cars. The onboard information transmission unit 50 also acquires information such as the status of equipment installed in its own car. Furthermore, the onboard information transmission unit 50 outputs information such as the status of equipment installed in its own car to the onboard information transmission unit 50 installed in other cars.

[0029] When the onboard information provision unit 60 receives the converted first signal from the train information collection unit 32, it receives a second signal via the onboard information transmission unit 50, which is information about the status of equipment installed on its own vehicle or other vehicles that corresponds to the first signal, and outputs the second signal to the train information collection unit 32. The onboard information provision unit 60 performs the same processing for all converted first signals, receives the second signal corresponding to the converted first signal, and outputs it to the train information collection unit 32.

[0030] The output device 70 is a display unit that displays the status of the equipment on the display screen under the control of the drawing processing execution unit 23 of the drawing processing unit 20. The output device 70 is, for example, a monitor equipped with an LCD (Liquid Crystal Display). Alternatively, as mentioned above, the output device 70 may be a touch panel in conjunction with the input device 10. When the train driver's cab display device 100 displays the status of the equipment on the display screen of the output device 70, it performs drawing processing using multiple drawing components, which are components representing the display content to be displayed on the display screen.

[0031] The signal conversion unit 80 generates case-referenced train configuration information from vendor train configuration information based on case-referenced train configuration information generation rules for generating case-referenced train configuration information from vendor train configuration information, and outputs the generated case-referenced train configuration information to the data collection unit 30. The signal conversion unit 80 also converts a first signal, which is a signal for acquiring information on the status of equipment and is based on the format of case-referenced train configuration information that indicates the configuration of a train in an arrangement of vehicles defined by the railway operator operating the train, from the format of case-referenced train configuration information to the format of vendor train configuration information that indicates the configuration of a train in an arrangement of vehicles defined by the train driver's cab display device 100. The signal conversion unit 80 also converts a second signal, which indicates information on the status of equipment obtained based on the converted first signal, from the format of vendor train configuration information to the format of case-referenced train configuration information. Specifically, the signal conversion unit 80 converts the first signal from the format of case-referenced train configuration information to the format of vendor train configuration information, and converts the second signal from the format of vendor train configuration information to the format of case-referenced train configuration information, based on the case-referenced train configuration information and vendor train configuration information.

[0032] The signal conversion unit 80 includes a case reference train configuration information generation unit 81, a case reference train configuration information generation rule holding unit 82, a train configuration information storage unit 83, and a train formation car number conversion unit 84.

[0033] The case-based train configuration information generation unit 81 obtains vendor train configuration information from the train information collection unit 32, along with a request for case-based train configuration information, including information on the number of train formations, the number of train cars, the arrangement of train cars, and the direction of travel of the train. The case-based train configuration information generation unit 81 generates case-based train configuration information from the vendor train configuration information based on the case-based train configuration information generation rules held in the case-based train configuration information generation rule holding unit 82. The case-based train configuration information generation unit 81 stores the generated case-based train configuration information and vendor train configuration information in the train configuration information storage unit 83. The case-based train configuration information generation unit 81 also outputs the generated case-based train configuration information to the train information collection unit 32 as a response to the request. If the train information collection unit 32 requests case-based train configuration information after the case-based train configuration information has been generated, the case-based train configuration information generation unit 81 may generate case-based train configuration information each time a request is made, or it may use the already generated case-based train configuration information stored in the train configuration information storage unit 83.

[0034] The case-based train configuration information generation rule holding unit 82 holds case-based train configuration information generation rules. The case-based train configuration information generation rule holding unit 82 may hold multiple case-based train configuration information generation rules. In this case, the case-based train configuration information generation unit 81 uses the specified case-based train configuration information generation rule from among the multiple case-based train configuration information generation rules held by the case-based train configuration information generation rule holding unit 82.

[0035] The train configuration information storage unit 83 stores the case-based train configuration information and vendor train configuration information generated by the case-based train configuration information generation unit 81.

[0036] The train formation vehicle number conversion unit 84 converts the first signal from the format of the case reference train configuration information to the format of the vendor train configuration information, and converts the second signal from the format of the vendor train configuration information to the format of the case reference train configuration information, based on the case reference train configuration information and vendor train configuration information stored in the train configuration information storage unit 83.

[0037] Specifically, the train configuration assumed by the train driver's cab display device 100 will be described. Figure 2 is a diagram showing an example of the train configuration assumed by the train driver's cab display device 100 according to Embodiment 1. In the example in Figure 2, one train set is composed of a combination of three vehicles: a motor car M2 of vehicle type M2, a trailer car T of vehicle type T, and a motor car M1 of vehicle type M1, and each train set is assumed to run with the motor car M2 at the front. There are three train sets X, Y, and Z with the same configuration, and the train set UUIDs (Universally Unique IDentifiers) that uniquely identify the train sets are 11111, 22222, and 33333, respectively. In addition, the vehicle IDs of each vehicle in train sets X, Y, and Z are M001~M003, M004~M006, and M007~M009, respectively, starting from the leading vehicle. Furthermore, when multiple train sets are coupled together, they shall be coupled in the same direction, that is, the motor car M1 at the rear of the previous train set shall be connected to the motor car M2 at the front of the next train set.

[0038] In the vendor-defined train configuration of the train driver's cab display device 100, when a train is composed of multiple train sets, for example, according to the rules conforming to the IEC (International Electrotechnical Commission) 61375 ETB (Ethernet® Train Backbone) architecture standard, the train set with the smaller train set UUID among the two train sets at both ends is designated as the first train set, and the order of the train sets and the direction of the train are determined accordingly. According to this rule, as shown in Figure 3, when train set X and train set Y are coupled in that order, with train set X facing the direction of travel, train set X, with the smaller train set UUID, becomes the first train set, and the first car of train set X, i.e., the motor car M2 with vehicle ID M001, becomes the leading car. Figure 3 is the first diagram showing an example of train set coupling assumed in the train driver's cab display device 100 according to Embodiment 1. In this case, the direction of the train is the same as the direction of travel, i.e., the forward direction. In contrast, as shown in Figure 4, when train sets Z and Y are coupled in that order, with train set Z facing the direction of travel, train set Y, which has a smaller train set UUID, becomes the first train set, and the third car of train set Y, i.e., the motor car M1 with vehicle ID M006, becomes the leading car. Figure 4 is a second diagram showing an example of train set coupling assumed by the train driver's cab display device 100 according to Embodiment 1. In this case, the orientation of the train is opposite to the direction of travel, i.e., the reverse direction.

[0039] Figure 5 is a flowchart showing the operation of the train driver's cab display device 100 according to Embodiment 1 when it is started up, or when the train configuration changes due to the addition or detachment of trains. Note that the operation of the flowchart shown in Figure 5 is performed by the train driver's cab display device 100 when the train is composed of multiple train sets. The case-based train configuration information generation unit 81 acquires vendor train configuration information, including the number of train sets, the number of train cars, the arrangement of train cars, and the direction of travel of the train, from the train information collection unit 32 (step S1). The case-based train configuration information generation unit 81 retrieves the case-based train configuration information generation rules for generating case-based train configuration information from the case-based train configuration information generation rule holding unit 82 (step S2).

[0040] Figure 6 shows an example of a table of case-based train configuration information generation rules held by the case-based train configuration information generation rule holding unit 82 of the train driver's cab display device 100 according to Embodiment 1. In the example in Figure 6, the case-based train configuration information generation rule holding unit 82 holds five case-based train configuration information generation rules. For example, rule number 1 stores the case-based train configuration information generation rule, which states, "Compare the vehicle types of both leading vehicles, and the one with the larger vehicle type string will be the leading vehicle." Since the table indicates that case-based train configuration information generation rule number 1 should be used, the case-based train configuration information generation unit 81 retrieves case-based train configuration information generation rule number 1 from the case-based train configuration information generation rule holding unit 82.

[0041] The case-based train configuration information generation rules held by the case-based train configuration information generation rule holding unit 82 are not limited to the examples shown in the table in Figure 6. The case-based train configuration information generation rule holding unit 82 may hold four or fewer, or six or more, case-based train configuration information generation rules, and may be operated in a way that allows for the addition or deletion of case-based train configuration information generation rules. The specification of which case-based train configuration information generation rules to use is intended to be made by the vendor of the train driver's cab display device 100 after the specifications have been determined with the recipient of the train driver's cab display device 100, i.e., the railway operator that will operate the train on which the train driver's cab display device 100 will be installed, but it may also be possible to specify this at other times.

[0042] The case-based train configuration information generation unit 81 determines the leading car of the case-based train configuration from the acquired vendor train configuration information based on the extracted case-based train configuration information generation rules, and generates the case-based train configuration information (step S3).

[0043] The case-based train configuration information generation unit 81, for example, when train sets X and Y shown in Figure 3 are coupled, compares the vehicle type "M2" of the motor car M2, whose first vehicle ID is M001 in train set X, with the vehicle type "M1" of the motor car M1, whose third vehicle ID is M006 in train set Y, and determines that the vehicle with the larger string, the motor car M2, whose first vehicle ID is M001 in train set X, will be the leading vehicle. Following the case-based train configuration information generation rule number 1, as shown in Figure 7, the vendor train configuration information obtained in step S1 and the case-based train configuration information will have the same vehicle arrangement. Figure 7 is the first figure showing an example of vendor train configuration information obtained and generated case-based train configuration information by the case-based train configuration information generation unit 81 of the train driver's cab display device 100 according to Embodiment 1.

[0044] As another example following the same case standard train configuration information generation rule number 1, the case standard train configuration information generation unit 81 compares the vehicle type "M2" of the motor car M2, whose first vehicle ID is M007 in the case of the case standard train configuration information generation rule shown in Figure 4, with the vehicle type "M1" of the motor car M1, whose third vehicle ID is M006 in the case of the case standard train configuration information generation unit 81, which follows the same case standard train configuration information generation rule number 1.

[0045] The case-based train configuration information generation unit 81 stores the created case-based train configuration information together with the vendor train configuration information obtained from the train information collection unit 32 in the train configuration information storage unit 83 (step S4).

[0046] Next, an overview of how the train driver's cab display device 100 performs drawing processing using multiple drawing components will be described. Figure 9 is a diagram showing an example of the display configuration when the train driver's cab display device 100 according to Embodiment 1 displays the status of equipment on the display screen 71 of the output device 70. In Figure 9, as an example, a configuration is assumed in which the train has 6 cars, more specifically, two 3-car trains coupled together. As shown in Figure 9, the train driver's cab display device 100 shows the direction of travel along with the 6 cars corresponding to the train configuration on the display screen 71 of the output device 70 using arrows. The train driver's cab display device 100 also displays the open / closed status of the doors installed on each car as equipment status on the display screen 71 of the output device 70. The train driver's cab display device 100 also displays the usage status or malfunction status of BRAKE, HVAC, and PEI as equipment status on the display screen 71 of the output device 70.

[0047] In the train driver's cab display device 100, the drawing processing unit 20 controls the display screen 71 shown in Figure 9 to be displayed not as a single unit, but as a component of multiple drawing components as shown in Figure 10. Figure 10 is a diagram showing an example in which the display screen 71 displayed on the output device 70 by the train driver's cab display device 100 according to Embodiment 1 is componentized into multiple drawing components. In Figure 10, as an example, the display screen 71 shown in Figure 9 is composed of three drawing components. Drawing component 1 shows the status of the train formation. Drawing component 2 shows the status of the doors. Drawing component 3 shows the status of BRAKE, HVAC, and PEI. As shown in Figure 10, the content displayed on the display screen 71 is componentized in units of six cars, i.e., one drawing component per train.

[0048] The drawing data holding unit 22 of the drawing processing unit 20 holds drawing data for each drawing component in a table format, where the row direction represents the vehicle and the column direction represents the vehicle's attributes. The drawing processing execution unit 23 executes drawing processing based on the drawing data held by the drawing data holding unit 22 and displays the results on a display screen 71 as shown in Figures 9 and 10.

[0049] Since the drawing data holding unit 22 holds drawing data in a table format for each drawing component, the signal definition holding unit 33 of the data acquisition unit 30 defines the assignment of signals to the drawing components based on the vehicle attributes, i.e., the signal information for each column of the drawing table. The number of columns, i.e., the number of vehicles, is determined by the case reference train configuration information of the train acquired by the data acquisition unit 30. The signal mapping management unit 31 generates a first signal for each vehicle using the vehicle attributes, i.e., the signal definition for each column of the drawing table, in order to obtain the second signal necessary to store the drawing data in the drawing table for each drawing component. For example, the signal mapping management unit 31 generates a first signal to obtain the second signal for BRAKE, HVAC, and PEI for six vehicles in order to obtain the drawing data necessary for the drawing table corresponding to the drawing component 3 shown in Figure 10.

[0050] Furthermore, if the train driver's cab display device 100 is installed in the leading car of the train where the driver is located and in the trailing car of the train where the conductor is located, the display pattern, i.e., the arrangement of the cars, may be changed in each car. For example, in the leading car and the trailing car, the train driver's cab display device 100 may display the position of the car on which it is installed on the left side of the display screen 71. In this case, the information on the status of each device displayed on the display screen 71 of the train driver's cab display device 100 is the same in the leading car and the trailing car, but it will be displayed in a reversed left-right orientation between the leading car and the trailing car. In the example in Figures 9 and 10, if the train driver's cab display device 100 in the leading car where the driver is located displays in the orientation shown in Figures 9 and 10, i.e., with the car indicated by "M001" on the left, the train driver's cab display device 100 in the trailing car where the conductor is located will display in the opposite orientation to Figures 9 and 10, i.e., with the car indicated by "M006" on the left.

[0051] In the same train, the train driver's cab display device 100 in the leading car and the train driver's cab display device 100 in the trailing car acquire the same second signal at the signal data storage unit 35 stage and store the value of the second signal in the same array. However, the signal data storage unit 35 of one train driver's cab display device 100 stores the value of the second signal in the drawing data storage unit 22 in the same array, while the signal data storage unit 35 of the other train driver's cab display device 100 stores the value of the second signal in the drawing data storage unit 22 with a different array. Changing the array means that, for example, if the signal data storage unit 35 of the other train driver's cab display device 100 stores the value of the second signal for each device in an array of cars in the order M001, M002, ..., M006 from left to right, it changes the array to M006, M005, ..., M001 from left to right and stores the value of the second signal for each device in the drawing data storage unit 22.

[0052] In the train driver's cab display device 100, the signal mapping generation unit 34 generates signal mapping information, which is mapping information indicating whether or not to change the arrangement when storing the values ​​of the second signals obtained from the equipment to be displayed in the table of the drawing data holding unit 22, based on the case reference train configuration information. The signal data storage unit 35 stores the values ​​of the second signals obtained from the train information collection unit 32 in the drawing data holding unit 22 based on the signal mapping information.

[0053] Specifically, we will explain the drawing components that the drawing processing execution unit 23 of the train driver's cab display device 100 displays on the display screen 71 of the output device 70, and the drawing data that the drawing data holding unit 22 holds in the drawing table for each drawing component at this time.

[0054] Figure 11 shows an example of a drawing component 1 displayed by the drawing processing execution unit 23 of the train driver's cab display device 100 according to Embodiment 1. In the drawing component 1 of Figure 11, a solid arrow indicates that the direction of travel of the train is to the left. Figure 11 shows an example where the leading car is car M001, and the train driver's cab display device 100 mounted on the leading car displays its own car as the left side. Note that if the direction of travel changes for the same train, and the trailing car is car M001, and the train driver's cab display device 100 mounted on the trailing car displays its own car as the left side, the direction of travel of the train will be indicated by a dotted arrow. Also, in the drawing component 1 of Figure 11, the display method is changed depending on whether there is a malfunction, indicating that there is a malfunction in cars M003 and M006. Changing the display method can be done, for example, by changing the display color, but other methods may also be used.

[0055] Figure 12 shows an example of a drawing table 22a of a drawing component 1 held by the train driver's cab display device 100 according to Embodiment 1. The drawing table 22a of the drawing component 1 shown in Figure 12 holds drawing data for 6 cars. In Figure 12, the item for presence of a malfunction indicates that a vehicle without a malfunction is drawn with the drawing data "1", and a vehicle with a malfunction is drawn with the drawing data "2". Also in Figure 12, the item for direction of travel is drawn with the drawing data "1" indicating the left side. In the example in Figure 12, the item for direction of travel indicates the right side as the drawing data "2", and does not indicate a direction of travel as the drawing data "0". In Figure 12, each of the displayed vehicle numbers 1 to 6 corresponds to each of the vehicles with vehicle IDs M001 to M006 of the train shown in Figure 11. The same applies hereafter. Based on the drawing data of the drawing table 22a shown in Figure 12, the train driver's cab display device 100 displays the drawing component 1 for the 6 cars of the train shown in Figure 11 on the display screen 71. In Figure 12, the "0" and "1" on the left are numbers used to identify the information displayed in drawing component 1, and are referred to as item numbers. Also in Figure 12, "Fault Status" and "Direction of Travel" are information displayed in drawing component 1, and are referred to as item names. The item names may indicate the status of the equipment or the equipment itself. The same applies hereafter.

[0056] The values ​​of the signal definitions held in the signal definition holding unit 33, the first signal generated by the signal mapping management unit 31, and the second signal stored in the drawing data holding unit 22 will be described. Figure 13 is a diagram showing an example of a signal definition held by the signal definition holding unit 33 for the drawing component 2 of the train driver's cab display device 100 according to Embodiment 1. The signal mapping management unit 31 obtains case reference train configuration information, including information about the number of cars in the train, from the case reference train configuration information generation unit 81 via the train information collection unit 32. In the example in Figure 13, it is shown that the signal mapping management unit 31 uses the signal definition "door.R1" when generating a first signal to obtain information about the state of door R1 from each car. As mentioned above, the signal mapping management unit 31 understands that the train is a 6-car train from the information about the number of cars in the train. The signal mapping management unit 31 generates the signal "car[1].door.R1" as the first signal in order to obtain a second signal about the door R1 of the leading car from the onboard information provision unit 60 via the train information collection unit 32. car[1] represents the equipment installed in car number 1, but in this case, the car number 1 is the car number according to the standard train configuration for the case.

[0057] The signal mapping management unit 31 outputs the generated first signal to the train information collection unit 32 and requests the train information collection unit 32 for information on the state of door R1 of the leading car. The train information collection unit 32 outputs the first signal "car[1].door.R1" to the train formation car number conversion unit 84 and requests the conversion of the train formation number and car number.

[0058] In this case, for example, as shown in Figure 7, if the case reference train configuration information and the vendor train configuration information have the same arrangement of vehicles, specifically, vehicles with vehicle IDs M001~M003, M004~M006, then the train formation number and vehicle number will have the same values ​​in both the case reference train configuration information and the vendor train configuration information. In this case, the train formation vehicle number conversion unit 84 outputs a first signal to the train information collection unit 32 as the converted first signal, which is a response to the conversion request for the first signal, and has the same content as the case reference train configuration information. The train information collection unit 32 outputs the converted first signal "car[1].door.R1" to the onboard information provision unit 60 and receives a second signal from the onboard information provision unit 60 as a response to the converted first signal "car[1].door.R1". The train information collection unit 32 outputs the second signal to the train formation vehicle number conversion unit 84, requesting the conversion of the train formation number and vehicle number. In this case as well, the train formation number conversion unit 84 outputs to the train information collection unit 32 a second signal with the same content as the vendor train configuration information, which is the format of the converted second signal, i.e., the case reference train configuration information, as a response to the conversion request for the second signal. The train information collection unit 32 outputs the value of the converted second signal to the signal data storage unit 35.

[0059] As another example, consider the train configuration shown in Figure 8, where the order of vehicles is reversed between the case-based train configuration information and the vendor train configuration information. Specifically, the case-based train configuration information shows vehicles with IDs M007-M009 and M004-M006, while the vendor train configuration information shows vehicles with IDs M006-M004 and M009-M007. In this case, the train formation number and vehicle number will be different values ​​in the case-based train configuration information and the vendor train configuration information. In this case, the train formation vehicle number conversion unit 84 outputs "car[6].door.R1" to the train information collection unit 32 as the converted first signal, which is a response to the conversion request for the first signal, with the vehicle number converted from 1 to 6. The train information collection unit 32 outputs the converted first signal "car[6].door.R1" to the onboard information provision unit 60, and receives a second signal from the onboard information provision unit 60 as a response to the converted first signal "car[6].door.R1". The train information collection unit 32 outputs the second signal to the train formation vehicle number conversion unit 84, requesting the conversion of the train formation number and vehicle number. In this case, the train formation vehicle number conversion unit 84 outputs a second signal to the train information collection unit 32 as a converted second signal, which is a response to the conversion request for the second signal, in the format of case-based train configuration information with the vehicle number converted from 6 to 1. The train information collection unit 32 outputs the value of the converted second signal to the signal data storage unit 35.

[0060] For the first signal before conversion, for example, the first signal for door R2 of the leading car is "car[1].door.R2", and the first signal for door R1 of the second car is "car[2].door.R1". The signal mapping management unit 31 generates a different first signal for each door of each car by associating the numbers in car[] with the car numbers. Since the signal mapping management unit 31 obtains status information for four doors from six cars, it generates 24 first signals. In this case, as shown in Figure 8, if the order of vehicles is reversed between the case standard train configuration information and the vendor train configuration information, the train set vehicle number conversion unit 84 converts the first signal "car[2].door.R1" for the vehicle with vehicle number 2 and outputs the converted first signal "car[5].door.R1", and converts the first signal "car[3].door.R1" for the vehicle with vehicle number 3 and outputs the converted first signal "car[4].door.R1". Furthermore, for the second signal, the train set vehicle number conversion unit 84 converts the vehicle number in the opposite direction to the conversion for the first signal, that is, to return the vehicle number. The data acquisition unit 30 of the train driver's cab display device 100 also acquires information on the status of doors R2, L1, and L2 in the same manner and stores it as the converted second signal in the signal data storage unit 35.

[0061] The operation of the train driver's cab display device 100, from displaying the status of equipment installed in each car of the train on the display screen 71 of the output device 70, will be explained using a flowchart. Figure 14 is a flowchart showing the operation of the train driver's cab display device 100 according to Embodiment 1 in which the status of equipment installed in each car of the train is displayed. First, in the train driver's cab display device 100, the input device 10 receives a request from outside the train driver's cab display device 100, for example, from a user, to display the status of the equipment (step S11). The input device 10 outputs event information regarding the request to display the status of the equipment to the event reception unit 21. The event reception unit 21 outputs event information regarding the request to display the status of the equipment to the signal mapping management unit 31.

[0062] When the signal mapping management unit 31 obtains event information regarding a request to display the status of the equipment, it obtains case reference train configuration information from the case reference train configuration information generation unit 81 via the train information collection unit 32, as described above (step S12).

[0063] The signal mapping management unit 31 generates a first signal based on the signal definitions held in the signal definition holding unit 33 and the acquired case reference train configuration information, outputs the first signal to the train information collection unit 32, and requests the train information collection unit 32 to provide information on the status of the equipment installed on each vehicle (step S13). The signal mapping management unit 31 may also receive a request for display of the equipment status from an external source, i.e., via the event reception unit 21, from the input device 10, acquire configuration information, and generate the first signal, or if configuration information is periodically acquired from the case reference train configuration information generation unit 81 via the train information collection unit 32, it may generate the first signal if there is a change in the configuration information.

[0064] The train information collection unit 32 outputs a first signal to the train formation vehicle number conversion unit 84, requesting a conversion of the first signal, specifically a conversion of the train formation number and vehicle number. The train formation vehicle number conversion unit 84 converts the train formation number and vehicle number of the first signal from the format of the case reference train configuration information to the format of the vendor train configuration information (step S14). The train formation vehicle number conversion unit 84 outputs the converted first signal to the train information collection unit 32.

[0065] The train information collection unit 32, using the converted first signal, requests information on the status of equipment installed in each vehicle from the onboard information provision unit 60, and obtains a second signal from the onboard information provision unit 60 indicating the status of equipment installed in each vehicle (step S15).

[0066] The train information collection unit 32 outputs a second signal to the train formation vehicle number conversion unit 84, requesting a conversion of the second signal, specifically a conversion of the train formation number and vehicle number. The train formation vehicle number conversion unit 84 converts the train formation number and vehicle number of the second signal from the format of vendor train configuration information to the format of case reference train configuration information (step S16). The train formation vehicle number conversion unit 84 outputs the converted second signal to the train information collection unit 32.

[0067] The train information collection unit 32 outputs the converted value of the second signal to the signal data storage unit 35. The signal data storage unit 35 stores the acquired converted value of the second signal (step S17).

[0068] Furthermore, the signal mapping management unit 31 outputs the case reference train configuration information to the signal mapping generation unit 34. Based on the case reference train configuration information, the signal mapping generation unit 34 generates signal mapping information that specifies the arrangement of vehicles on the display screen 71 where the status of the equipment is displayed (step S18). The signal mapping generation unit 34 outputs the generated signal mapping information to the signal data storage unit 35.

[0069] The signal data storage unit 35 controls the storage position of the second signal value in the drawing data holding unit 22 based on the signal mapping information generated by the signal mapping generation unit 34, and stores the second signal value in the drawing data holding unit 22 (step S19).

[0070] Then, the drawing processing execution unit 23 displays the status of the device on the display screen 71 of the output device 70 using multiple drawing components based on the drawing data held in the drawing table of the drawing data holding unit 22 (step S20).

[0071] Next, the configuration and operation of the drawing component generation device 90 will be described. The drawing component generation device 90 generates drawing components used by the train driver's cab display device 100 when the train driver's cab display device 100 uses drawing components to display the status of equipment mounted on the train on the display screen 71. The drawing component generation device 90 also receives a signal definition that forms the basis of a first signal requesting information on the status of equipment mounted on the train. The drawing component generation device 90 sets the generated drawing components and the received signal definition in the train driver's cab display device 100. The drawing component generation device 90 comprises an input device 91, a drawing component description unit 92, a drawing component storage unit 93, a signal definition description unit 94, and a signal definition storage unit 95.

[0072] The drawing component description unit 92 uses the input device 91 to present the user with an input screen showing the items of information used to generate drawing components, accepts information input from the user for the items, and generates drawing components to be used in the train driver's cab display device 100. The drawing component description unit 92 stores the information of the generated drawing components in the drawing component storage unit 93. The drawing component storage unit 93 holds the information of the drawing components generated by the drawing component description unit 92.

[0073] The signal definition description unit 94 receives signal definitions, i.e., information on signal assignments, from the user using the input device 91. The signal definition description unit 94 stores the received signal definitions in the signal definition storage unit 95. The signal definition storage unit 95 holds the signal definitions received by the signal definition description unit 94.

[0074] The drawing component generation device 90 outputs the information of drawing components held by the drawing component description unit 92 to the drawing component holding unit 24 of the drawing processing unit 20 for setting, and outputs the signal definitions held by the signal definition storage unit 95 to the signal definition holding unit 33 of the data acquisition unit 30 for setting. Alternatively, the drawing component generation device 90 may not have a drawing component storage unit 93 and may directly output the information of drawing components generated by the drawing component description unit 92 to the drawing component holding unit 24 of the drawing processing unit 20 for setting, or it may not have a signal definition storage unit 95 and may directly output the signal definitions received by the signal definition description unit 94 to the signal definition holding unit 33 of the data acquisition unit 30 for setting.

[0075] Furthermore, since the drawing component generation device 90 is envisioned to be in the form of a personal computer, it may be permanently mounted on the train together with the train driver's cab display device 100, or it may be detachable from the train driver's cab display device 100 and connected to the train driver's cab display device 100 when the drawing component generation device 90 generates or modifies drawing components, or when the drawing component generation device 90 receives or modifies a signal definition.

[0076] In the drawing component generation device 90, the drawing component description unit 92 generates drawing components according to the number of train formations, the number of train cars, the arrangement of train cars, and the direction of travel of the train, based on the format of the case-based train configuration information, and the signal definition description unit 94 receives signal definitions according to the number of train formations, the number of train cars, the arrangement of train cars, and the direction of travel of the train, based on the format of the case-based train configuration information.

[0077] Next, the hardware configuration of the train driver's cab display device 100 will be described. In the train driver's cab display device 100, the input device 10 and the output device 70 are implemented by touch panels. The on-board information transmission unit 50 is implemented by an interface circuit that enables communication with on-board information transmission units 50 of other vehicles. The drawing processing unit 20, data acquisition unit 30, train configuration information provision unit 40, on-board information provision unit 60, and signal conversion unit 80 are implemented by processing circuits. The processing circuits may be a CPU (Central Processing Unit) and memory that execute programs stored in memory, or they may be dedicated hardware.

[0078] Figure 15 shows an example of a processing circuit 900 that implements the train driver's cab display device 100 according to Embodiment 1, in which the processing circuit 900 is configured with a processor 901 and a memory 902. When the processing circuit 900 is configured with a processor 901 and a memory 902, each function of the processing circuit 900 of the train driver's cab display device 100 is realized by software, firmware, or a combination of software and firmware. The software or firmware is written as a program and stored in the memory 902. In the processing circuit 900, each function is realized by the processor 901 reading and executing the program stored in the memory 902. In other words, the processing circuit 900 is equipped with a memory 902 for storing programs that will ultimately be executed as processing for the train driver's cab display device 100. These programs can also be said to cause the computer to execute the procedures and methods of the train driver's cab display device 100.

[0079] The above program includes a first signal generation step in which the data acquisition unit 30 generates a first signal based on the format of case-based train configuration information, which is a signal for acquiring information on the status of equipment mounted on the train cars and indicates the configuration of the train in an array of cars defined by the railway operator operating the train; a first signal conversion step in which the signal conversion unit 80 converts the first signal from the format of case-based train configuration information to the format of vendor train configuration information, which indicates the configuration of the train in an array of cars defined by the display device; and the data acquisition unit 30 outputs the first signal converted by the signal conversion unit 80 to the onboard information provision unit 60 which provides information on the status of the equipment. It can also be said that this is a program that causes the train driver's cab display device 100 to execute the following steps: a second signal acquisition step in which the upper information provision unit 60 acquires a second signal indicating information about the status of the equipment as a response to the first signal after conversion; a second signal conversion step in which the signal conversion unit 80 converts the second signal obtained based on the first signal after conversion from the format of vendor train configuration information to the format of case reference train configuration information; a second signal storage step in which the data collection unit 30 stores the value of the second signal after conversion by the signal conversion unit 80 in the drawing processing unit 20; and a drawing processing step in which the drawing processing unit 20 displays the status of the equipment mounted on the train cars.

[0080] Here, the processor 901 may be a CPU, processing unit, arithmetic unit, microprocessor, microcomputer, or DSP (Digital Signal Processor). The memory 902 may include, for example, non-volatile or volatile semiconductor memory such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable ROM), EEPROM (Registered Trademark) (Electrically EPROM), magnetic disks, flexible disks, optical disks, compact disks, minidiscs, or DVDs (Digital Versatile Discs).

[0081] Figure 16 shows an example of a case where the processing circuit 903 that realizes the train driver's cab display device 100 according to Embodiment 1 is configured with dedicated hardware. When the processing circuit 903 is configured with dedicated hardware, the processing circuit 903 shown in Figure 16 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof. Each function of the train driver's cab display device 100 may be realized by the processing circuit 903 separately for each function, or each function may be realized together by the processing circuit 903.

[0082] Furthermore, some functions of the train driver's cab display device 100 may be implemented using dedicated hardware, while others may be implemented using software or firmware. In this way, the processing circuit can implement the above-mentioned functions using dedicated hardware, software, firmware, or a combination thereof.

[0083] The hardware of the train driver's cab display device 100 has been described, and the hardware configuration of the drawing component generation device 90 is similar. In the drawing component generation device 90, the input device 91 is a device such as a switch, keyboard, or mouse. The drawing component storage unit 93 and the signal definition storage unit 95 are memories. The drawing component description unit 92 and the signal definition description unit 94 are implemented by a processing circuit. The processing circuit may be a CPU and memory that executes the program stored in the memory, or it may be dedicated hardware.

[0084] As described above, according to this embodiment, in the train driver's cab display device 100, the data acquisition unit 30 generates a signal definition that is the source of a first signal that requests information on the status of equipment mounted on the vehicle, described based on the case reference train configuration information, and a first signal based on the case reference train configuration information. The signal conversion unit 80 converts the first signal from the format of the case reference train configuration information to the format of the vendor train configuration information. The data acquisition unit 30 requests information on the status of the equipment using the converted first signal and obtains the value of a second signal, which is information on the status of the equipment. The signal conversion unit 80 converts the second signal from the format of the vendor train configuration information to the format of the case reference train configuration information. The data acquisition unit 30 controls the storage position of the converted second signal value and stores the second signal value in the drawing table of the drawing processing unit 20. The drawing processing unit 20 displays the status of the equipment on the display screen 71 using a plurality of drawing components based on the drawing data held in the drawing table. At this time, the drawing component generation device 90 generates drawing components for the display screen 71 to be displayed on the train driver's cab display device 100 based on the format of the case standard train configuration information, and accepts the signal definition.

[0085] As a result, even when the prescribed train configuration differs from the train configuration determined by the railway operator, the train driver's cab display device 100 can display information on the status of equipment mounted on the vehicle on the display screen 71 of the output device 70, while reducing the load of setting and conversion processing. The train driver's cab display device 100 can collect onboard information and train configuration information in a format specified as standard by the vendor of the train driver's cab display device 100, and provide onboard information and train configuration information in a format based on the agreement with the railway operator, even when dealing with different railway operators or when agreements with railway operators are changed.

[0086] Furthermore, even when train configuration information, including information such as the number of train formations, the number of train cars, the arrangement of train cars, and the direction of travel, changes due to the addition or detachment of train formations, the train driver's cab display device 100 has the signal conversion unit 80 convert the formation number and car number of the first signal generated by the data collection unit 30 and the second signal output from the onboard information provision unit 60. As a result, the signal definition holding unit 33 can use the signal definition received by the drawing component generation device 90 in accordance with the format of case-based train configuration information determined by agreement with the railway operator, and the drawing data holding unit 22 can draw using the drawing components generated by the drawing component generation device 90 in accordance with the format of case-based train configuration information determined by agreement with the railway operator.

[0087] Furthermore, even if the format of the case-based train configuration information and the format of the vendor train configuration information differ, the train driver's cab display device 100 only converts the train formation number and vehicle number of the first and second signals. Therefore, it does not require calculation processing to convert between the format of the case-based train configuration information and the format of the vendor train configuration information, thus preventing a decrease in execution speed due to calculation processing and the introduction of errors in calculation processing.

[0088] Furthermore, the drawing component generation device 90 can generate drawing components and accept signal definitions based on the format of the case-based train configuration information, without depending on the vendor train configuration information. Therefore, railway operators and other personnel using the drawing component generation device 90 do not need to understand the concepts of both vendor train configuration information and case-based train configuration information, nor do they need to develop any calculation logic for conversion.

[0089] Embodiment 2. In Embodiment 1, one first signal corresponded to one of the drawing data held in the drawing data holding unit 22. In Embodiment 2, a new second signal value is calculated using the values ​​of multiple second signals obtained from multiple first signals, and this new second signal value is stored in the drawing data holding unit 22. The differences from Embodiment 1 will now be explained.

[0090] Figure 17 is a block diagram showing an example configuration of the display system 110a according to Embodiment 2. The display system 110a comprises a train driver's cab display device 100a and a drawing component generation device 90a. The train driver's cab display device 100a is the same as the train driver's cab display device 100 of Embodiment 1, but with the data acquisition unit 30 replaced by a data acquisition unit 30a. The data acquisition unit 30a comprises a signal mapping management unit 31a, a train information acquisition unit 32, a signal definition holding unit 33a, a signal mapping generation unit 34, a signal data storage unit 35a, and a signal data calculation unit 36.

[0091] In addition to the signal definition held by the signal definition holding unit 33, the signal definition holding unit 33a further holds information about the calculation logic for the signal data calculation unit 36 ​​to calculate a new second signal value using the values ​​of the multiple second signals, and the signal definition that serves as the basis for the first signal to obtain the aforementioned values ​​of the multiple second signals.

[0092] The signal mapping management unit 31a has the same functions as the signal mapping management unit 31, but because the signal definition holding unit 33a has more signal definitions, the processing required to generate the first signal is greater than that of the signal mapping management unit 31.

[0093] The signal data calculation unit 36 ​​is a calculation unit that uses the values ​​of multiple second signals to calculate and determine a new second signal value that indicates one state of a specified device.

[0094] The signal data storage unit 35a holds the value of a new second signal along with multiple second signals, and stores the value of the new second signal in the drawing data storage unit 22. Because the signal data storage unit 35a also holds multiple second signals to obtain the value of the new second signal, it has a larger area for holding second signals than the signal data storage unit 35.

[0095] In the drawing processing unit 20, the drawing processing execution unit 23 performs display based on the drawing table in the drawing data holding unit 22. However, the drawing data held in the drawing table may not have a one-to-one correspondence with the values ​​of the second signals acquired by the train information collection unit 32. For example, the state of a certain device may be determined from a combination of multiple second signals. These multiple second signals may include, for example, a signal indicating whether or not the device is installed, a signal indicating whether or not the device is active, and a signal representing the state of the device. In order to determine the state of the device from a combination of multiple second signals, calculation processing is required in the train driver's cab display device 100a.

[0096] Therefore, in Embodiment 2, the signal definition holding unit 33a holds not only the signal definition that serves as the basis for the first signal to obtain a second signal corresponding to the drawing data, but also the signal definitions that serve as the basis for the first signal to obtain multiple second signals to calculate the value of a new second signal corresponding to the drawing data. In addition, the signal definition holding unit 33a holds information on the calculation logic for calculating the value of a new second signal using the values ​​of multiple second signals.

[0097] The signal data calculation unit 36 ​​determines whether or not a calculation is required based on the signal definition and calculation logic information held in the signal definition holding unit 33a, and performs calculation processing as necessary, storing the calculation result, i.e., the new second signal value, in the signal data storage unit 35a. The signal mapping management unit 31a outputs the signal definition and calculation logic information held in the signal definition holding unit 33a to the signal data calculation unit 36 ​​via the signal data storage unit 35a. As the signal data calculation unit 36 ​​obtains the new second signal value through calculation, the train driver's cab display device 100a can use the result of calculations performed by combining multiple onboard information, i.e., information on the status of multiple devices, as drawing data.

[0098] The signal data storage unit 35a treats the new second signal value obtained by the calculation of the signal data calculation unit 36 ​​in the same way as the value of one second signal corresponding to one drawing data, that is, in the same way as the value of the second signal in Embodiment 1. The signal data storage unit 35a also controls the storage position of the second signal value in the drawing data holding unit 22 based on the signal mapping information, and stores the second signal value in the drawing data holding unit 22.

[0099] Figure 18 is a flowchart showing the operation of the train driver's cab display device 100a according to Embodiment 2, which displays the status of equipment installed in each car of the train. In the flowchart shown in Figure 18, the operations from step S11 to step S18 and from step S19 to step S20 are the same as the operations from step S11 to step S18 and from step S19 to step S20 in the flowchart of Embodiment 1 shown in Figure 14.

[0100] After step S18, in the data acquisition unit 30a, the signal data calculation unit 36 ​​determines a new second signal value using the values ​​of multiple second signals that require calculation from among the second signals held in the signal data storage unit 35a, based on the signal definition and calculation logic information held in the signal definition holding unit 33a (step S31). The signal data calculation unit 36 ​​stores the new second signal value obtained by the calculation in the signal data storage unit 35a.

[0101] Next, the configuration and operation of the drawing component generation device 90a will be described. The drawing component generation device 90a generates drawing components to be used by the train driver's cab display device 100a when the train driver's cab display device 100a uses drawing components to display the status of equipment mounted on the train cars on the display screen 71, and receives the signal definitions necessary for drawing and the calculation logic for the signal data calculation unit 36 ​​to calculate the value of a new second signal. The drawing component generation device 90a comprises an input device 91, a drawing component description unit 92, a drawing component storage unit 93, a signal definition calculation logic description unit 96, and a signal definition calculation logic storage unit 97.

[0102] The signal definition and calculation logic description unit 96 receives input of signal definitions and calculation logic from the user using the input device 91. The signal definition and calculation logic description unit 96 stores the received signal definitions and calculation logic in the signal definition and calculation logic storage unit 97. The signal definition and calculation logic storage unit 97 holds the signal definitions and calculation logic received by the signal definition and calculation logic description unit 96.

[0103] The drawing component generation device 90a outputs the signal definition and calculation logic held by the signal definition calculation logic storage unit 97 to the signal definition holding unit 33a and the signal data calculation unit 36 ​​of the data acquisition unit 30a. Alternatively, the drawing component generation device 90a may not have a signal definition calculation logic storage unit 97 and may directly output the signal definition and calculation logic received by the signal definition calculation logic description unit 96 to the signal definition holding unit 33a and the signal data calculation unit 36 ​​of the data acquisition unit 30a. In this case, the drawing component generation device 90a may output at least one of the signal definition and calculation logic to only the signal definition holding unit 33a of the data acquisition unit 30a.

[0104] Furthermore, since the drawing component generation device 90a is envisioned to be in the form of a personal computer, it may be permanently mounted on the train together with the train driver's cab display device 100a, or it may be detachable from the train driver's cab display device 100a and connected to the train driver's cab display device 100a when the drawing component generation device 90a generates or modifies drawing components, when the drawing component generation device 90a receives or modifies a signal definition, or when the drawing component generation device 90a receives or modifies calculation logic.

[0105] The hardware configuration of the train driver's cab display device 100a in Embodiment 2 is the same as that of the train driver's cab display device 100 in Embodiment 1. Similarly, the hardware configuration of the drawing component generation device 90a in Embodiment 2 is the same as that of the drawing component generation device 90 in Embodiment 1.

[0106] As described above, according to this embodiment, the train driver's cab display device 100a calculates a new second signal value from the values ​​of a plurality of second signals and stores the new second signal value in the drawing data holding unit 22. As a result, the train driver's cab display device 100a can use the result of calculations performed by combining information on the status of multiple devices as drawing data.

[0107] The configurations shown in the above embodiments are merely examples, and it is possible to combine them with other known technologies, combine different embodiments, and omit or modify parts of the configuration without departing from the gist of the invention. The various aspects of this disclosure are summarized below as an appendix. (Note 1) A display device mounted in the driver's cab of a train, A drawing processing unit that displays the status of equipment installed in the train cars, A signal conversion unit converts a first signal, which is a signal for acquiring information on the status of the equipment and is based on the format of case-based train configuration information that indicates the configuration of the train in an arrangement of vehicles defined by the railway operator operating the train, from the format of the case-based train configuration information to the format of vendor train configuration information that indicates the configuration of the train in an arrangement of vehicles defined by the display device, and converts a second signal, which indicates information on the status of the equipment obtained based on the converted first signal, from the format of the vendor train configuration information to the format of the case-based train configuration information. A data acquisition unit generates the first signal, outputs the first signal converted by the signal conversion unit to an on-board information provision unit that provides information on the status of the equipment, obtains the second signal from the on-board information provision unit as a response to the first signal converted by the signal conversion unit, and stores the value of the second signal converted by the signal conversion unit in the drawing processing unit. A display device characterized by having the following features. (Note 2) The data acquisition unit acquires vendor train configuration information from the train configuration information provision unit, which includes the number of train formations, the number of cars in the train, the arrangement of the cars in the train, and the direction of travel of the train, obtained when the onboard information transmission unit installed in the vehicle communicates with onboard information transmission units installed in other vehicles, and outputs the acquired vendor train configuration information to the signal conversion unit. The signal conversion unit generates the case reference train configuration information from the vendor train configuration information based on a case reference train configuration information generation rule for generating the case reference train configuration information from the vendor train configuration information, outputs the case reference train configuration information to the data collection unit, converts the first signal from the format of the case reference train configuration information to the format of the vendor train configuration information based on the case reference train configuration information and the vendor train configuration information, and converts the second signal from the format of the vendor train configuration information to the format of the case reference train configuration information. The display device described in Appendix 1, characterized by the features described herein. (Note 3) The signal conversion unit is A case-based train configuration information generation rule holding unit that holds the case-based train configuration information generation rule, A case-based train configuration information generation unit generates the case-based train configuration information from the vendor train configuration information based on the case-based train configuration information generation rule, A train configuration information storage unit stores the case-based train configuration information and vendor train configuration information generated by the case-based train configuration information generation unit, A train formation vehicle number conversion unit converts the first signal from the format of the case-based train formation information to the format of the vendor train formation information, and converts the second signal from the format of the vendor train formation information to the format of the case-based train formation information, based on the case-based train formation information and the vendor train formation information stored in the train formation information storage unit. The display device according to Appendix 2, characterized by comprising the above. (Note 4) The aforementioned case-based train configuration information generation rule holding unit holds a plurality of the aforementioned case-based train configuration information generation rules, The aforementioned case-based train configuration information generation unit utilizes a designated case-based train configuration information generation rule from among a plurality of case-based train configuration information generation rules. The display device according to Appendix 3, characterized by the features described herein. (Note 5) The data acquisition unit acquires the case reference train configuration information from the signal conversion unit, generates a first signal based on the signal definition that is the source of the first signal requesting information on the status of the equipment installed on the vehicle and the case reference train configuration information, and outputs it to the signal conversion unit. The value of the second signal after conversion by the signal conversion unit is stored in the drawing processing unit by controlling the storage position based on signal mapping information, which is information that specifies the arrangement of vehicles on the display screen of the output device where the status of the equipment is displayed. A display device according to any one of the appendices 2 to 4, characterized by the above. (Note 6) The aforementioned data acquisition unit, A signal definition holding unit that holds the aforementioned signal definition, A signal mapping management unit acquires the aforementioned case reference train configuration information, generates the first signal based on the signal definition and the aforementioned case reference train configuration information, and requests information on the status of the equipment. A signal data storage unit that holds the converted value of the second signal obtained at the request of the signal mapping management unit, A signal mapping generation unit generates the signal mapping information based on the case reference train configuration information obtained from the signal mapping management unit and outputs it to the signal data storage unit, A train information collection unit requests the signal conversion unit to perform the conversion of the first signal and the conversion of the second signal obtained from the onboard information provision unit, outputs the converted first signal to the onboard information provision unit, and outputs the converted value of the second signal to the signal data storage unit. Equipped with, The signal data storage unit controls the storage location of the converted second signal value based on the signal mapping information and stores it in the drawing processing unit. The display device described in Appendix 5, characterized by the features described herein. (Note 7) The aforementioned data acquisition unit further, A signal data calculation unit that uses the values ​​of multiple second signals to calculate and determine a new second signal value that indicates one state of a specified device. The display device according to Appendix 6, characterized by comprising the above. (Note 8) A display device as described in any one of the appendices 5 to 7, A drawing component generation device sets the display device the drawing component used when the display device displays the status of the equipment mounted on the train vehicle on the display screen using the drawing component, and the signal definition that forms the basis of the first signal requesting information on the status of the equipment mounted on the vehicle. A display system characterized by comprising the following features. (Note 9) A method for displaying onboard information on a display device mounted in the driver's cab of a train, A first signal generation step in which the data acquisition unit generates a first signal based on the format of case-specific train configuration information, which is a signal for acquiring information on the status of equipment installed on the train's vehicles and indicates the configuration of the train in an array of vehicles defined by the railway operator operating the train, The signal conversion unit performs a first signal conversion step of converting the first signal from the format of the case reference train configuration information to the format of vendor train configuration information that indicates the configuration of the train in an array of vehicles defined by the display device, The data acquisition unit outputs the first signal converted by the signal conversion unit to an on-board information provision unit that provides information on the status of the equipment, and the second signal acquisition step obtains a second signal from the on-board information provision unit as a response to the first signal converted, indicating information on the status of the equipment. The signal conversion unit performs a second signal conversion step of converting the second signal obtained based on the first signal after conversion from the format of the vendor train configuration information to the format of the case reference train configuration information, The data acquisition unit performs a second signal storage step in which it stores the value of the second signal after it has been converted by the signal conversion unit into a drawing processing unit, The drawing processing unit includes a drawing processing step that displays the status of the equipment installed on the train vehicle, A method for displaying in-vehicle information, characterized by including the following: (Note 10) The vendor train configuration information acquisition step involves the data collection unit acquiring vendor train configuration information from the train configuration information provision unit, which includes information on the number of train formations, the number of cars in the train, the arrangement of the cars in the train, and the direction of travel of the train, obtained by the on-board information transmission unit installed in the vehicle communicating with on-board information transmission units installed in other vehicles, and outputting the acquired vendor train configuration information to the signal conversion unit. The signal conversion unit generates the case reference train configuration information from the vendor train configuration information based on a case reference train configuration information generation rule for generating the case reference train configuration information from the vendor train configuration information, and outputs the case reference train configuration information to the data collection unit in a case reference train configuration information generation step, Includes, In the first signal conversion step, the signal conversion unit converts the first signal from the format of the case reference train configuration information to the format of the vendor train configuration information based on the case reference train configuration information and the vendor train configuration information. In the second signal conversion step, the signal conversion unit converts the second signal from the format of the vendor train configuration information to the format of the case reference train configuration information based on the case reference train configuration information and the vendor train configuration information. The in-vehicle information display method described in Appendix 9, characterized by the features described herein. (Note 11) In the aforementioned case-based train configuration information generation step, the case-based train configuration information generation unit of the signal conversion unit generates the case-based train configuration information from the vendor train configuration information based on the case-based train configuration information generation rules held in the case-based train configuration information generation rule holding unit of the signal conversion unit, and stores the generated case-based train configuration information and the vendor train configuration information in the train configuration information storage unit of the signal conversion unit. In the first signal conversion step, the train formation vehicle number conversion unit provided in the signal conversion unit converts the first signal from the format of the case reference train configuration information to the format of the vendor train configuration information based on the case reference train configuration information and the vendor train configuration information stored in the train configuration information storage unit. In the second signal conversion step, the train formation vehicle number conversion unit converts the second signal from the format of the vendor train configuration information to the format of the case reference train configuration information based on the case reference train configuration information and the vendor train configuration information stored in the train configuration information storage unit. The in-vehicle information display method described in Appendix 10, characterized by the features described herein. (Note 12) The aforementioned case-based train configuration information generation rule holding unit holds a plurality of the aforementioned case-based train configuration information generation rules. In the aforementioned case-based train configuration information generation step, the case-based train configuration information generation unit utilizes a specified case-based train configuration information generation rule from among a plurality of case-based train configuration information generation rules. The vehicle information display method described in Appendix 11, characterized by the features described herein. (Note 13) In the first signal generation step, the data acquisition unit acquires the case reference train configuration information from the signal conversion unit, generates a first signal based on the signal definition that is the source of the first signal and the case reference train configuration information that requests information on the status of the equipment installed on the vehicle, and outputs it to the signal conversion unit. In the second signal storage step, the data acquisition unit stores the value of the second signal converted by the signal conversion unit in the drawing processing unit, controlling the storage position based on signal mapping information, which is information that specifies the arrangement of vehicles on the display screen of the output device where the status of the equipment is displayed by the drawing processing unit. A method for displaying in-vehicle information as described in any one of appendices 10 to 12, characterized by the features described herein. (Note 14) The first signal generation step is: The signal mapping management unit of the data acquisition unit acquires the case reference train configuration information, generates the first signal based on the signal definition held in the signal definition holding unit and the case reference train configuration information, and requests information on the status of the equipment in a signal mapping management step, The first train information collection step involves the train information collection unit of the data collection unit requesting the signal conversion unit to convert the first signal, and outputting the converted first signal to the onboard information provision unit, Includes, The second signal storage step described above is: A second train information collection step in which the train information collection unit requests the signal conversion unit to convert the second signal obtained from the onboard information provision unit, and outputs the converted value of the second signal obtained at the request of the signal mapping management unit to the signal data storage unit provided by the data collection unit, The signal data storage unit performs a signal data storage step of storing the value of the second signal after conversion, Includes, moreover, A signal mapping generation step in which the signal mapping generation unit of the data acquisition unit generates the signal mapping information based on the case reference train configuration information acquired from the signal mapping management unit and outputs it to the signal data storage unit, Includes, In the signal data storage step, the signal data storage unit controls the storage location of the converted second signal value based on the signal mapping information and stores it in the drawing processing unit. The in-vehicle information display method described in Appendix 13, characterized by the features described herein. (Note 15) moreover, The signal data calculation unit of the data acquisition unit calculates a new second signal value that indicates one state of a specified device using the values ​​of a plurality of second signals in the signal data calculation step. The vehicle information display method described in Appendix 14, characterized by including the following: [Explanation of symbols]

[0108] 10,91 Input device, 20 Drawing processing unit, 21 Event reception unit, 22 Drawing data holding unit, 22a Drawing table, 23 Drawing processing execution unit, 24 Drawing component holding unit, 30,30a Data acquisition unit, 31,31a Signal mapping management unit, 32 Train information collection unit, 33,33a Signal definition holding unit, 34 Signal mapping generation unit, 35,35a Signal data storage unit, 36 Signal data calculation unit, 40 Train configuration information provision unit, 50 Onboard information transmission unit, 60 Onboard information provision unit, 70 Output device, 71 Display screen, 80 Signal conversion unit, 81 Case-based train configuration information generation unit, 82 Case-based train configuration information generation rule holding unit, 83 Train configuration information storage unit, 84 Train formation vehicle number conversion unit, 90,90a Drawing component generation device, 92 Drawing component description unit, 93 Drawing component storage unit, 94 Signal definition description unit, 95 Signal definition storage unit, 96 Signal definition calculation logic description unit, 97 Signal definition calculation logic storage unit, 100, 100a Train driver's cab display device, 110, 110a Display system, 900, 903 Processing circuit, 901 Processor, 902 Memory.

Claims

1. A display device mounted in the driver's cab of a train, A drawing processing unit that displays the status of equipment installed in the train cars, A signal conversion unit converts a first signal, which is a signal for acquiring information on the status of the equipment and is based on the format of case-based train configuration information that indicates the configuration of the train in an arrangement of vehicles defined by the railway operator operating the train, from the format of the case-based train configuration information to the format of vendor train configuration information that indicates the configuration of the train in an arrangement of vehicles defined by the display device, and converts a second signal, which indicates information on the status of the equipment obtained based on the converted first signal, from the format of the vendor train configuration information to the format of the case-based train configuration information. A data acquisition unit generates the first signal, outputs the first signal converted by the signal conversion unit to an on-board information provision unit that provides information on the status of the equipment, obtains the second signal from the on-board information provision unit as a response to the first signal converted by the signal conversion unit, and stores the value of the second signal converted by the signal conversion unit in the drawing processing unit. A display device characterized by having the following features.

2. The data acquisition unit acquires vendor train configuration information from the train configuration information provision unit, which includes the number of train formations, the number of cars in the train, the arrangement of the cars in the train, and the direction of travel of the train, obtained when the onboard information transmission unit installed in the vehicle communicates with onboard information transmission units installed in other vehicles, and outputs the acquired vendor train configuration information to the signal conversion unit. The signal conversion unit generates the case reference train configuration information from the vendor train configuration information based on a case reference train configuration information generation rule for generating the case reference train configuration information from the vendor train configuration information, outputs the case reference train configuration information to the data collection unit, converts the first signal from the format of the case reference train configuration information to the format of the vendor train configuration information based on the case reference train configuration information and the vendor train configuration information, and converts the second signal from the format of the vendor train configuration information to the format of the case reference train configuration information. The display device according to feature 1.

3. The signal conversion unit is A case-based train configuration information generation rule holding unit that holds the case-based train configuration information generation rule, A case-based train configuration information generation unit generates the case-based train configuration information from the vendor train configuration information based on the case-based train configuration information generation rule, A train configuration information storage unit stores the case-based train configuration information and vendor train configuration information generated by the case-based train configuration information generation unit, A train formation vehicle number conversion unit converts the first signal from the format of the case-based train formation information to the format of the vendor train formation information, and converts the second signal from the format of the vendor train formation information to the format of the case-based train formation information, based on the case-based train formation information and the vendor train formation information stored in the train formation information storage unit. The display device according to claim 2, characterized by comprising:

4. The aforementioned case-based train configuration information generation rule holding unit holds a plurality of the aforementioned case-based train configuration information generation rules, The aforementioned case-based train configuration information generation unit utilizes a designated case-based train configuration information generation rule from among a plurality of case-based train configuration information generation rules. The display device according to feature 3.

5. The data acquisition unit acquires the case reference train configuration information from the signal conversion unit, generates a first signal based on the signal definition that is the source of the first signal requesting information on the status of the equipment installed on the vehicle and the case reference train configuration information, and outputs it to the signal conversion unit. The value of the second signal after conversion by the signal conversion unit is stored in the drawing processing unit by controlling the storage position based on signal mapping information, which is information that specifies the arrangement of vehicles on the display screen of the output device where the status of the equipment is displayed. The display device according to feature 2.

6. The aforementioned data acquisition unit, A signal definition holding unit that holds the aforementioned signal definition, A signal mapping management unit acquires the aforementioned case reference train configuration information, generates the first signal based on the signal definition and the aforementioned case reference train configuration information, and requests information on the status of the equipment. A signal data storage unit that holds the converted value of the second signal obtained at the request of the signal mapping management unit, A signal mapping generation unit generates the signal mapping information based on the case reference train configuration information obtained from the signal mapping management unit and outputs it to the signal data storage unit, A train information collection unit requests the signal conversion unit to perform the conversion of the first signal and the conversion of the second signal obtained from the onboard information provision unit, outputs the converted first signal to the onboard information provision unit, and outputs the converted value of the second signal to the signal data storage unit. Equipped with, The signal data storage unit controls the storage location of the converted second signal value based on the signal mapping information and stores it in the drawing processing unit. The display device according to feature 5.

7. The aforementioned data acquisition unit further, A signal data calculation unit that uses the values ​​of multiple second signals to calculate and determine a new second signal value that indicates one state of a specified device. The display device according to claim 6, characterized by comprising:

8. A display device according to any one of claims 5 to 7, A drawing component generation device sets the display device the drawing component used when the display device displays the status of the equipment mounted on the train vehicle on the display screen using drawing components, and the signal definition that forms the basis of the first signal requesting information on the status of the equipment mounted on the vehicle. A display system characterized by comprising the following features.

9. A method for displaying onboard information on a display device mounted in the driver's cab of a train, A first signal generation step in which the data acquisition unit generates a first signal based on the format of case-specific train configuration information, which is a signal for acquiring information on the status of equipment installed on the train's vehicles and indicates the configuration of the train in an array of vehicles defined by the railway operator operating the train, The signal conversion unit performs a first signal conversion step of converting the first signal from the format of the case reference train configuration information to the format of vendor train configuration information that indicates the configuration of the train in an array of vehicles defined by the display device, The data acquisition unit outputs the first signal converted by the signal conversion unit to an on-board information provision unit that provides information on the status of the equipment, and the second signal acquisition step obtains a second signal from the on-board information provision unit as a response to the first signal converted, indicating information on the status of the equipment. The signal conversion unit performs a second signal conversion step of converting the second signal obtained based on the first signal after conversion from the format of the vendor train configuration information to the format of the case reference train configuration information, The data acquisition unit performs a second signal storage step in which it stores the value of the second signal after it has been converted by the signal conversion unit into a drawing processing unit, The drawing processing unit includes a drawing processing step that displays the status of the equipment installed on the train vehicle, A method for displaying in-vehicle information, characterized by including the following:

10. The vendor train configuration information acquisition step involves the data collection unit acquiring vendor train configuration information from the train configuration information provision unit, which includes information on the number of train formations, the number of cars in the train, the arrangement of the cars in the train, and the direction of travel of the train, obtained by the on-board information transmission unit installed in the vehicle communicating with on-board information transmission units installed in other vehicles, and outputting the acquired vendor train configuration information to the signal conversion unit. The signal conversion unit generates the case reference train configuration information from the vendor train configuration information based on a case reference train configuration information generation rule for generating the case reference train configuration information from the vendor train configuration information, and outputs the case reference train configuration information to the data collection unit in a case reference train configuration information generation step, Includes, In the first signal conversion step, the signal conversion unit converts the first signal from the format of the case reference train configuration information to the format of the vendor train configuration information based on the case reference train configuration information and the vendor train configuration information. In the second signal conversion step, the signal conversion unit converts the second signal from the format of the vendor train configuration information to the format of the case reference train configuration information based on the case reference train configuration information and the vendor train configuration information. The in-vehicle information display method according to feature 9.

11. In the aforementioned case-based train configuration information generation step, the case-based train configuration information generation unit of the signal conversion unit generates the case-based train configuration information from the vendor train configuration information based on the case-based train configuration information generation rules held in the case-based train configuration information generation rule holding unit of the signal conversion unit, and stores the generated case-based train configuration information and the vendor train configuration information in the train configuration information storage unit of the signal conversion unit. In the first signal conversion step, the train formation vehicle number conversion unit of the signal conversion unit converts the first signal from the format of the case reference train configuration information to the format of the vendor train configuration information based on the case reference train configuration information and the vendor train configuration information stored in the train configuration information storage unit. In the second signal conversion step, the train formation vehicle number conversion unit converts the second signal from the format of the vendor train configuration information to the format of the case reference train configuration information based on the case reference train configuration information and the vendor train configuration information stored in the train configuration information storage unit. The vehicle information display method according to feature 10.

12. The aforementioned case-based train configuration information generation rule holding unit holds a plurality of the aforementioned case-based train configuration information generation rules. In the aforementioned case-based train configuration information generation step, the case-based train configuration information generation unit utilizes a specified case-based train configuration information generation rule from among a plurality of case-based train configuration information generation rules. The in-vehicle information display method according to feature 11.

13. In the first signal generation step, the data acquisition unit acquires the case reference train configuration information from the signal conversion unit, generates a first signal based on the signal definition that is the source of the first signal requesting information on the status of the equipment installed on the vehicle, and the case reference train configuration information, and outputs it to the signal conversion unit. In the second signal storage step, the data acquisition unit stores the value of the second signal converted by the signal conversion unit in the drawing processing unit, controlling the storage position based on signal mapping information, which is information that specifies the arrangement of vehicles on the display screen of the output device where the status of the equipment is displayed by the drawing processing unit. The in-vehicle information display method according to any one of claims 10 to 12.

14. The first signal generation step is: The signal mapping management unit of the data acquisition unit acquires the case reference train configuration information, generates the first signal based on the signal definition held in the signal definition holding unit and the case reference train configuration information, and requests information on the status of the equipment in a signal mapping management step, The first train information collection step involves the train information collection unit of the data collection unit requesting the signal conversion unit to convert the first signal, and outputting the converted first signal to the onboard information provision unit, Includes, The second signal storage step described above is: A second train information collection step in which the train information collection unit requests the signal conversion unit to convert the second signal acquired from the onboard information provision unit, and outputs the converted value of the second signal acquired at the request of the signal mapping management unit to the signal data storage unit provided by the data collection unit, The signal data storage unit performs a signal data storage step of storing the value of the second signal after conversion, Includes, moreover, A signal mapping generation step in which the signal mapping generation unit of the data acquisition unit generates the signal mapping information based on the case reference train configuration information acquired from the signal mapping management unit and outputs it to the signal data storage unit, Includes, In the signal data storage step, the signal data storage unit controls the storage position of the converted second signal value based on the signal mapping information and stores it in the drawing processing unit. The in-vehicle information display method according to feature 13.

15. moreover, The signal data calculation unit of the data acquisition unit calculates a new second signal value that indicates one state of a specified device using the values ​​of a plurality of second signals in the signal data calculation step. The vehicle information display method according to claim 14, characterized by including the following:

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