JP4942726B2 - Train length detection system and train weight calculation system - Google Patents

Description

  The present invention relates to a train length detection system and a train weight calculation method, and more particularly, to a train length detection system and a train weight calculation method corresponding to a case where a tail vehicle of a train may be changed.

  In the conventional railway signal security device, the position of the train is detected by a device such as a track circuit installed on the track. The track circuit is installed by dividing the track into fixed sections, and detects the on-line status of the train based on the presence or absence of train wheels in the section. However, such a track circuit device needs to be installed along all the tracks, and the maintenance cost becomes high.

  On the other hand, in recent years, a method of detecting the train position on the train control device side has been developed. For example, the method disclosed in Patent Document 1 employs a method in which the train control device measures the position of the own train using an axle rotation accumulator or the like. For this reason, there is no need to install a track circuit, and there is an effect that the maintenance cost is greatly reduced.

  In the signal security device using such a method for detecting the train position on the train control device side, the measurement result is transmitted to the ground device by radio. In response to this, the ground device transmits the stop target position based on the tail position of the train to the subsequent train. Subsequent trains that have received this are controlled by their own train control device so that their head positions do not exceed the target stop position. Therefore, the information on the head position and the tail position of the train is important, and the train control apparatus measures the head position or the tail position of the train and adds the train length to the value to calculate the tail position or the head position of the train.

  Therefore, in the signal security device using the method of detecting the train position on the train control device side, the train length is an important parameter for controlling the train. Problems such as approaching above occur.

  In response to such a problem, an apparatus for accurately setting the train length has been developed. For example, in Patent Document 2, a distance sensor that detects the travel distance of a train in the leading and trailing cars of a train, a position detection device that detects the current position of the train, and a collation that mutually compares the current positions of both trains A method is disclosed in which the devices are provided in a distributed manner, and the train length is obtained from the difference between the current positions of the trains detected by the position detectors of the leading vehicle and the trailing vehicle by the collating device.

  Moreover, in patent document 3, it is equipped with the means to detect a train position continuously on the ground or a vehicle, this detects that the said train head part entered the train length detection point, and the elapsed time from that time. And the travel distance of the train are sequentially recorded, and it is detected that the top of the train has entered the train length detection point on the ground, and that the rear end of the train has advanced to the same point from that time. Disclosed is a method of measuring the time until completion, selecting the elapsed time closest to the measured time from the recorded elapsed time, and detecting the train length using the corresponding train travel distance. ing.

JP-A-2-109770 JP-A-9-295577 Japanese Patent Laid-Open No. 2-108904

  However, the configurations of Patent Document 2 and Patent Document 3 have a problem that it is difficult to apply to tail vehicles with simple configurations such as freight cars and passenger cars.

  The present invention has been made in order to solve the above-described problems, and when the tail car of a train is a simple vehicle such as a freight car or a passenger car, the train length can be increased by merging or dividing trains. An object of the present invention is to provide an apparatus for setting an accurate train length even when frequently changed.

  The train length detection system according to the present invention includes an on-board device provided on a train and a ground device provided on the ground, and the train passes near the ground device so that the train A train length detection system for detecting a train length, wherein the on-board device is attached to each of a plurality of vehicles that form the train, and each transmits vehicle information including vehicle length and axle number information. An output device, and the ground device is attached to a track and detects an axle of a vehicle that has passed through; an axle number information included in the vehicle information transmitted from the vehicle information output device; and When the number of axles detected by the axle detection device is compared and the two match, the vehicle length included in the vehicle information is added, and all the vehicle lengths obtained by adding the vehicle length for the plurality of vehicles are obtained. Vehicle Wherein the train length, and a, a ground processing apparatus to be transmitted to the train included in the train information is.

  According to the train length detection system according to the present invention, when the number of axles included in the vehicle information transmitted from the vehicle information output device is compared with the number of axles detected by the axle detection device, the two match. The vehicle length included in the vehicle information is added, and the length of all vehicles obtained by adding the vehicle length for a plurality of vehicles is used as the train length, and is included in the train organization information and transmitted to the train. Even if it is a simple vehicle such as a train, or a train that includes trains whose train length may be frequently changed due to merge or division of trains, trains can be installed by installing a vehicle information output device. The length can be detected accurately. In addition, when there is a freight car / passenger car to which no vehicle information output device is attached, this can be detected from the contradiction in the number of axles, so that it is possible to prevent the train length from being erroneously calculated.

<Embodiment>
<1. System configuration>
FIG. 1 is a diagram showing a configuration of a train length detection system 100 according to an embodiment of the present invention.
In FIG. 1, the trains are trained in a three-car train consisting of a leading vehicle LV, an intermediate vehicle MV, and a trailing vehicle TV, each of which includes vehicle information output devices 1001 to 1003 as on-board devices, at least in the traveling direction of the train. It is attached to the right side surface. As such a vehicle information output device, for example, an RFID (Radio Frequency Identification) tag can be used.

  The RFID tag has a capability of transmitting and receiving information to and from the management system using radio waves. In this example, the RFID tag is used to transmit vehicle information. The vehicle information transmitted from the vehicle information output devices 1001 to 1003 is received by the vehicle information reading device 1006 provided on the ground. As the vehicle information reading device 1006, for example, an RFID tag reading device may be used.

  Here, an example of vehicle information is shown in FIG. As shown in FIG. 2, the vehicle information includes at least a vehicle identifier (vehicle ID) that can uniquely identify the vehicle, vehicle type information that indicates a distinction between the locomotive and passenger car of the vehicle, and vehicle length information that indicates the vehicle length of the vehicle. , Information on the number of axles representing the number of axles of the vehicle is included.

  The vehicle type information is used to specify the vehicle that is the source of the vehicle information, and is important information for vehicle identification together with the vehicle ID.

  Each of the vehicle information output devices 1001 to 1003 transmits vehicle length information, axle number information, and the like as vehicle information together with information on whether the corresponding vehicle is a locomotive or a passenger car.

  In addition, a train formation information receiving device 1004 that receives train formation information from a ground device is attached to the leading vehicle LV as an on-board device, and the train formation information receiving device 1004 is a vehicle that processes the received train formation information. An upper processing device 1005 is connected. Train formation information receiving device 1004 is configured by a signal receiving device including a receiving antenna.

  Here, an example of train organization information is shown in FIG. As shown in FIG. 3, the train formation information includes at least a vehicle ID, a message, and train length information that can uniquely identify a vehicle that should receive the train formation information. The message includes, for example, types such as a measurement start message indicating that the measurement of the train length has been started, an error message indicating that the measurement has failed, and a measurement completion message indicating that the measurement has been completed.

  In addition to the vehicle information reading device 1006 described above, the ground device includes an axle detection device 1007, a train passage detection device 1008, a vehicle information reading device 1006, an axle detection device 1007, and a train passage detection device attached to the track. A ground processing device 1009 that creates train formation information based on vehicle information and a train formation information transmission device 1010 that is connected to the ground processing device 1009 and transmits train formation information to a train.

  The axle detection device 1007 is a device that detects the axle of a train passing on a track, and for example, one using electromagnetic induction is known.

  For example, in Japanese Patent Laid-Open No. 2000-6808, a transmission coil and a reception coil are opposed to each other at a predetermined detection location of a rail on which a train travels, with the rail interposed therebetween. When a frequency signal current is supplied and an alternating magnetic field is generated, an induction voltage is generated by electromagnetic induction in the receiving coil, and when a wheel is located between the transmitting coil and the receiving coil A technique for detecting a wheel, that is, an axle using the decrease of the induced voltage is disclosed. Japanese Patent Application Laid-Open No. 2007-22136 discloses an axle detection device having excellent noise resistance, and an axle detection method can be realized using a known technique.

  The train passage detection device 1008 is a device that detects that the train is not present behind the ground device, and is realized by a short track circuit that detects the presence of the train or the vehicle depending on whether or not the rails are short-circuited. can do.

<2. System operation>
<2-1. Processing with ground processing equipment>
<2-1-1. First vehicle detection>
Next, processing in the ground processing apparatus 1009 will be described using the flowchart shown in FIG. 4 with reference to FIG. The ground processing apparatus 1009 is configured by a computer system having a CPU (Central Processing Unit) and a memory.

  When the processing operation is started in the ground processing device 1009, it is first checked whether or not the vehicle information from the vehicle information reading device 1006 has been received (step S1). And when vehicle information is received, it is investigated from the vehicle type information of the received vehicle information whether the vehicle which transmitted the said vehicle information is a head vehicle (locomotive) (step S2).

  If it is the leading vehicle (locomotive), a measurement start signal is transmitted to the train organization information transmitting apparatus 1010 (step S3). Next, in order to start calculation of the train length, the axle counter and the train length in the memory of the ground processing device 1009 are reset (step S4). The positional relationship between the train and the ground device at this time is shown in part (a) of FIG. 5A shows a state in which the vehicle information output device 1001 of the leading vehicle LV is approaching the vehicle information reading device 1006.

  After the reset operation in step S4, the vehicle information record in the memory of the ground processing device 1009 is updated based on the received vehicle information (step S10), and the process returns to step S1 to return vehicle information from the next vehicle. Wait for reception.

  On the other hand, in the state where vehicle information is not received in step S1, the presence or absence of axle detection is checked based on the output of the axle detection device 1007 (step S11). When the axle is detected, the axle counter in the memory of the ground processing device 1009 is counted up (step S12), and the process returns to step S1 to wait for the reception of vehicle information from the next vehicle.

  In the case of the leading vehicle LV, when the vehicle information reading device 1006 is not close enough to receive the vehicle information from the vehicle information output device 1001, the process proceeds from step S1 to step S11. Since the axle is not detected in step 1007, the presence or absence of the train passing is confirmed in step S13. If the train does not pass, the process returns to step S1. Thereafter, when the vehicle information output device 1001 approaches the vehicle information reading device 1006 and detects vehicle information, the process returns to step S1 through steps S2 to S4 and step S10. Here, when the vehicle information output device 1001 is separated from the vehicle information reading device 1006, vehicle information from the leading vehicle LV cannot be received, and the axle and the ground device can be detected in step S11. Is shown in part (b) of FIG. Thereafter, the ground device counts up the number of axles of the leading vehicle until the vehicle information of the following vehicle is received.

  Further, when the received vehicle information is not the leading vehicle in step S2, it means that the vehicle information from the following vehicle has been received, and the vehicle received from the leading vehicle LV in the memory of the ground processing device 1009. It is a state in which the vehicle information record updated based on the information remains, and it is checked whether or not the number-of-axle information therein matches the value of the axle counter (step S5). The positional relationship between the train and the ground device at this time is shown in part (c) of FIG. In part (c) of FIG. 5, after the last wheel of the leading vehicle LV is detected by the axle detection device 100 and the axle counter in the memory of the ground processing device 1009 is counted up, the vehicle information output device for the intermediate vehicle MV is obtained. A state in which 1002 is approaching the vehicle information reading device 1006 is shown.

  Therefore, the number of axles of the axle counter in the memory of the ground processing apparatus 1009 should match the number of axles recorded in the vehicle information. However, if the vehicle information output device 1002 of the intermediate vehicle MV is out of order, or if the vehicle information output device 1002 is not installed, the positional relationship between the train and the ground device when the vehicle information is received is shown in FIG. As shown in FIG.

  That is, in FIG. 6, after the last wheel of the intermediate vehicle MV is detected by the axle detection device 100 and the axle counter in the memory of the ground processing device 1009 is counted up, the vehicle information output device 1003 of the last vehicle TV is A state in which the vehicle information reading device 1006 is approaching is shown.

  In this case, the number of axles of the axle counter in the memory of the ground processing apparatus 1009 is the number of axles for two vehicles, and does not match the number of axles recorded in the vehicle information.

  Thus, in the train length detection system 100 according to the present invention, even if the ground device cannot receive vehicle information from the vehicle, it can detect this from the contradiction in the number of axles. Can be prevented.

  On the other hand, in step S5, if the number of axles information by the vehicle information record matches the value of the axle counter, that is, in the state shown in part (c) of FIG. 5, the number of axles counter is reset once (step S8). ) The vehicle length in the vehicle information record is added to the train length currently stored in the memory of the ground processing apparatus 1009 (step S9). In the state shown in part (c) of FIG. 5, vehicle information of the leading vehicle LV is recorded in the vehicle information record, and the vehicle length information therein represents the vehicle length of the leading vehicle LV. . Note that when the vehicle information of the leading vehicle LV is received, the train length is reset in step S4, so that it is currently stored in the memory of the ground processing device 1009 in the state shown in part (c) of FIG. The train length is 0.

  Thus, the train length stored in the memory of the ground processing device 1009 is 0 until the state shown in part (c) of FIG. 5 is reached, but the vehicle information is received from the intermediate vehicle MV. As a trigger, the vehicle length information in the vehicle information record, that is, the vehicle length of the leading vehicle LV is added as the train length. Similarly, the vehicle length of the intermediate vehicle MV is added to the train length when receiving vehicle information of the following vehicle (the last vehicle in the figure).

<2-1-2. Intermediate vehicle detection>
Next, the vehicle information record in the memory of the ground processing device 1009 is updated with the received vehicle information (here, the vehicle information from the intermediate vehicle MV) (step S10), and the process returns to step S1 to return from the next vehicle. Wait for reception of vehicle information.

  In step S5, if the number of axles information recorded by the vehicle information and the value of the axle counter do not match, that is, if the positional relationship between the train and the ground device is as shown in FIG. 6, an error message is included in the train organization information. The train formation information transmission device 1010 transmits the error information to the train formation information reception device 1004 (step S6).

  Next, after resetting the axle number counter, train length, vehicle information record, and head vehicle ID in the memory of the ground processing device 1009 (step S7), the process returns to step S1 to receive vehicle information from the next vehicle. wait.

<2-1-3. Detection of the last vehicle>
If the axle is not detected in step S11, as described above, the vehicle information reading device 1006 is not close enough to receive vehicle information from the vehicle information output device 1001 of the leading vehicle LV. In other cases, trains may have passed. Therefore, it is checked whether or not the train passage detection device 1008 detects the passage of the train (step S13). If the passage of the train is detected, that is, if the train is not present behind the ground device, it is next checked whether or not the current train length is being calculated (step S14). And when calculation of train length is not yet started by the vehicle information received from head vehicle LV, it returns to Step S1.

  On the other hand, in the case where the calculation of the train length has already been started and the train is not located behind the ground device, the positional relationship between the train and the ground device is the state shown in part (d) of FIG. There is no vehicle behind the ground device.

  Thus, in the train length detection system 100 according to the present invention, since the ground device identifies the last vehicle by detecting the passage of the train, it is possible to prevent the train length from being erroneously calculated.

  If the calculation of the train length has already started and the train is not behind the ground device, the number of axles and the axles in the vehicle information record (vehicle information of the last vehicle TV) It is checked whether or not the counter values match (step S15). If they do not match, there is a contradiction in the number of axles, and the process proceeds to step S6.

  On the other hand, if the number of axle information and the value of the axle counter match, the vehicle length information in the vehicle information record (vehicle information of the last vehicle TV), that is, the vehicle length of the last vehicle TV is used as the train to the present. Add to the length (step S16). Thereby, the total length of all the vehicles of a train, ie, the train length, can be obtained.

  Next, the addition result is set as the train length information, the ID of the leading vehicle is set as the vehicle ID, and the train organization information is configured including the measurement completion message indicating that the measurement is completed. It transmits to the train organization information receiving device 1004 of the vehicle LV (step S17).

  Next, after resetting the axle number counter, train length, vehicle information record, and head vehicle ID in the memory of the ground processing apparatus 1009 (step S18), the process returns to step S1. In this case, it waits for the approach of the next train.

<2-2. Processing by on-board processor>
Next, processing in the on-board processing device 1005 will be described using the flowchart shown in FIG. 7 with reference to FIG. The ground processing apparatus 1005 is configured by a computer system having a CPU and a memory.

  First, the on-board processing device 1005 sets the train length stored in the memory of the on-board processing device 1005 to the maximum length allowed by the corresponding railway at the time of activation (step S21).

  Next, it is checked whether the train formation information receiving device 1004 has received the train formation information from the train formation information transmitting device 1010 on the ground (step S22). And when train organization information is received, it is checked whether vehicle ID of the received information corresponds with ID of the own vehicle (Step S23). By performing such a check, it is possible to avoid that the on-board processing device 1005 erroneously uses information transmitted to the on-board processing device of another train as information on the own train.

  If the vehicle ID of the received train formation information matches the ID of the host vehicle, the message type is checked. If the message type is measurement start information (step S24), time measurement by a timer is started (step S25). ). This timer outputs an error alarm when the longest train allowed on the applicable railway cannot receive the train length measurement result from the ground even after sufficient time has passed to pass the ground equipment side. Used to do.

  That is, if the train organization information is not received in step S22, it is confirmed whether or not the time set in the timer has elapsed in step S29. If the time has elapsed, the train Even if it passes, it judges that the train length measurement result could not be received from the ground, outputs an error alarm, and sets the train length to the maximum length allowed in the corresponding railway (step S30). If the time set in the timer has not elapsed, the process returns to step S22 and waits for reception of train organization information.

  On the other hand, if the message type is not measurement start information in step S24, it is checked whether it is error information (step S26). If it is error information, it is known that the train length measurement has failed in the ground device, so an error alarm is output and the train length to be stored in the on-board processing device 1005 is allowed in the corresponding railway. The maximum length is set (step S30).

  In this way, in the train length detection system 100 according to the present invention, the ground device notifies that the measurement of the train length has failed, and the train length is set to the maximum length allowed by the corresponding railway. It is possible to prevent a shorter train length from being used.

  On the other hand, if the message is not error information in step S26, the train length to be stored in the on-board processor 1005 is set based on the received train organization information (step S27), and the train length setting completion is output. (Step S28).

<3. Effect>
As described above, in the train length detection system 100 according to the present invention, there is a possibility that the train length may be frequently changed when the vehicle is a simple vehicle such as a freight car / passenger car or when the trains are merged or divided. Even if the train includes a vehicle, the train length can be accurately calculated by attaching the vehicle information output device to each vehicle. In addition, if there is a freight car / passenger car that is not equipped with a vehicle information output device or is not operating properly, this can be detected from the contradiction between the measured number of axles and the number of axles transmitted from the vehicle. Since the error information is transmitted to the train, the on-board processing device 1005 is prevented from erroneously calculating the train length.

  In the train length detection system 100 according to the present invention, the vehicle information output device is provided in each vehicle. However, since the vehicle information output device has a simple configuration, it is inexpensive in cost. Compared with a configuration in which a position detection device having a complicated configuration is installed, the system can be realized at a low cost.

  Moreover, in the structure which measures the distance of a train and detects train length like patent document 3, there is a possibility that the train length cannot be measured correctly due to the measurement error of the detection device. In the detection system 100, since the train length is calculated by adding the vehicle length information in the vehicle information record with the reception of the vehicle information as a trigger, basically no error occurs.

  In addition, in this Embodiment, it is set as the structure which transmits / receives train length as train organization information, In addition to this, it is good also as a structure which transmits / receives a vehicle classification and vehicle length.

<4. Modification>
FIG. 8 is a diagram showing a train length detection system 100A according to a modification of the above-described embodiment. 8 differs from the train length detection system 100 shown in FIG. 1 in that the ground device is connected to a vehicle information database 8001 that manages at least the vehicle length and the number of axles of each vehicle for each vehicle ID. However, the same components as those in the train length detection system 100 shown in FIG. 1 are denoted by the same reference numerals, and redundant description is omitted.

  Here, as a method of installing the vehicle information database 8001, there are a method of incorporating it into the ground device and a method of incorporating it into a database device for vehicle management such as one or several in the entire railway. The database device for vehicle management can also be configured to manage information on cargoes and containers mounted on the vehicle.

  Thus, as the vehicle information transmitted from the vehicle information output devices 1001 to 1003 by connecting the ground device to the vehicle information database 8001, as shown in FIG. 9, at least a vehicle ID that can uniquely identify the vehicle is used. The ground device that has received the vehicle information can access the vehicle information database 8001 and retrieve the vehicle ID to obtain the vehicle length and the number of axles of the vehicle. By adopting such a configuration, vehicle information transmitted from the vehicle can be simplified. Note that the basic processing operation in the ground processing apparatus 1009 is the same as the processing described with reference to FIG. 4, and the vehicle length and the number of axles are not vehicle information from the train, but the vehicle information database 8001. For example, between step S1 and step S2, the vehicle information database 8001 is searched based on the received vehicle ID, and the vehicle length and the number of axles of the vehicle are acquired. Will be added.

  Furthermore, if the database device for vehicle management also manages the weight of each vehicle and the weight of cargo and containers loaded on each vehicle, the ground device can control the weight of the vehicle and the cargo. It is possible to calculate the vehicle weight of each vehicle based on the loading amount, and to transmit the total train weight including the total weight of the train to the vehicle by including it in the train organization information. When adopting such a configuration, the train length detection system 100A also functions as a train weight calculation system.

  As a method of identifying the cargo and container mounted on each vehicle, the relationship between each vehicle and the cargo and container mounted on it is recorded in the vehicle management database device during the loading operation, and is included in the vehicle information. A method for identifying the cargo or container mounted on each vehicle from the included vehicle ID is conceivable.

  In addition, a method of attaching a device that outputs an ID for uniquely identifying the cargo or container to the cargo and the container, receiving the ID by the ground device, and thereby identifying the cargo or container mounted on the vehicle may be considered.

  Thus, if the train can receive information on the weight of each vehicle or the weight of the entire train from the ground, the braking distance of the brake and the time until the train stop can be predicted based on the train weight. Also, based on the train weight, the safe maximum speed at the curve portion of the track can be calculated. For this reason, when the train weight is heavy, it is possible to perform safer train operation than before by lowering the traveling speed of the train as necessary.

  On the other hand, when the train weight is light, it can be predicted that the braking distance of the brake and the time until the train stop will be shortened. Therefore, the maximum speed of the train can be made higher than usual while ensuring safety. Thus, by increasing the maximum speed of the train and operating, the transportation efficiency of cargo and the like mounted on the train is improved. Further, by increasing the traveling speed of the corresponding train, the following train can also travel without being affected by the corresponding train. For this reason, the transport efficiency as a whole of a corresponding railway improves.

It is a figure which shows the structure of the train length detection system of embodiment which concerns on this invention. It is a figure which shows an example of vehicle information. It is a figure which shows an example of train organization information. It is a flowchart explaining the process in a ground processing apparatus. It is a figure which shows the process in a ground processing apparatus with the positional relationship of a train and a ground apparatus. It is a figure explaining the process in a ground processing apparatus when there is a malfunction in a vehicle information output device. It is a flowchart explaining the process in a processing apparatus on a vehicle. It is a figure which shows the structure of the train length detection system of the modification of embodiment which concerns on this invention. It is a figure which shows an example of vehicle information.

Claims (8)

A train length detection system that includes an on-board device provided on a train and a ground device provided on the ground, and detects the train length of the train by passing the train near the ground device. There,
The on-board device is:
It is attached to each of a plurality of vehicles that form the train, and each has a vehicle information output device that transmits vehicle information including vehicle length and axle number information,
The ground device is
An axle detection device that is attached to the track and detects the axle of the passed vehicle;
When the number of axles information included in the vehicle information transmitted from the vehicle information output device is compared with the number of axles detected by the axle detection device, and the two match, the information included in the vehicle information The vehicle length is added, and the length of all vehicles obtained by adding the vehicle length for the plurality of vehicles is the train length, and the ground processing device includes the train formation information and transmits the train to the train. Train length detection system. The ground processing device is
By receiving the vehicle information from the plurality of vehicles other than the head vehicle, the number of axles included in the vehicle information is compared with the number of axles detected by the axle detection device using the vehicle information as a trigger. The vehicle length included in the vehicle information from the preceding vehicle is added when the two match, and when the two do not match, error information is included in the train formation information and transmitted to the train. The described train length detection system. The ground device is
It has a train passage detection device that detects that the train has passed and informs the ground processing device,
The ground processing device is
By receiving notification of train passing from the train passage detection device, using it as a trigger, the axle number information included in the vehicle information is compared with the number of axles detected by the axle detection device, and both If the two are consistent, the vehicle length included in the vehicle information from the last vehicle is added to obtain the length of all the vehicles, and in the case of a mismatch, the train information includes the error information and the train information is included in the train information. The train length detection system according to claim 2 for transmission.   The train length detection system according to claim 1, wherein the vehicle information further includes a vehicle identifier for uniquely identifying the vehicle and vehicle type information. A train length detection system that includes an on-board device provided on a train and a ground device provided on the ground, and detects the train length of the train by passing the train near the ground device. There,
The on-board device is:
It is attached to each of a plurality of vehicles that form the train, each having a vehicle information output device that transmits vehicle information including a vehicle identifier that uniquely identifies the vehicle,
The ground device is
An axle detection device that is attached to the track and detects the axle of the passed vehicle;
For each vehicle identifier, a vehicle information database that manages at least the vehicle length and axle number information of each vehicle;
When the axle number information acquired from the vehicle information database using the vehicle identifier included in the received vehicle information is compared with the number of axles detected by the axle detection device, if both match, The vehicle length acquired from the vehicle information database using the vehicle identifier contained in the received vehicle information is added, and the lengths of all vehicles obtained by adding the vehicle lengths for the plurality of vehicles are A train length detection system having a train length and a ground processing device which is included in train organization information and transmitted to the train. The ground processing device is
The axle number information acquired from the vehicle information database by using the vehicle identifier included in the received vehicle information by receiving the vehicle information from the vehicle other than the leading vehicle among the plurality of vehicles. And the number of axles detected by the axle detection device, and if they match, the vehicle identifier is obtained from the vehicle information database using the vehicle identifier included in the vehicle information received from the previous vehicle. The train length detection system according to claim 5, wherein the vehicle length is added, and if there is a discrepancy, error information is included in the train organization information and transmitted to the train. The ground device is
It has a train passage detection device that detects that the train has passed and informs the ground processing device,
The ground processing device is
From the train passage detection device, by receiving notification of train passage, using it as a trigger, the axle number information acquired from the vehicle information database using the vehicle identifier included in the received vehicle information, and The vehicle acquired from the vehicle information database using the vehicle identifier included in the vehicle information received from the last vehicle when the number of axles detected by the axle detection device is compared and the two match. The train length detection system according to claim 6, wherein a length is added to obtain the length of all the vehicles, and when there is a mismatch, the train information includes the error information and transmits the train information to the train. A train weight calculation system using the train length detection system according to claim 5,
The vehicle information database also manages information on the weight of each vehicle and the weight of the load mounted on each vehicle,
The ground processing device is
The train weight calculation system which calculates the vehicle weight of each said vehicle based on the said vehicle single-piece | unit weight and the weight of the said load, adds them, and transmits to the said train as the total weight of the said train.

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