JP6232684B2 - Magnetic levitation railway ground coil position measurement system and magnetic levitation railway ground coil position measurement method - Google Patents

Description

  The present invention relates to a ground coil position measurement system for a magnetic levitation railway and a ground coil position measurement method for a magnetic levitation railway.

In a magnetic levitation railway, if the position of the ground coil (levitation guide coil or propulsion coil) provided on the track of the train is shifted from the normal position to be properly arranged, the magnetic levitation train This may affect the ride comfort of passengers riding in the vehicle, such as vibrations in the vehicle.
Accordingly, the position of the ground coil is measured, and if the position where the ground coil is disposed is shifted, it is necessary to perform correction.

In addition to the above-described displacement of the ground coil when it is installed, vibrations, etc. occur in the vehicle even if a part of the levitation guide coil in the ground coil is disconnected or short-circuited, the null flux wire is miswired, or disconnected. To do. Furthermore, the short-circuit between the layers of the propulsion coil in the ground coil cannot be detected at the substation unlike the ground fault, and there is also an abnormality that hinders the running of the vehicle.
Conventionally, ground coil position measurement and abnormality detection in a magnetic levitation railway have been performed using a measuring vehicle having dedicated equipment for detecting ground coil arrangement position and abnormality (for example, Patent Documents). 1).

Japanese Patent No. 4056910

However, the measurement of the position of the ground coil on the track of the train by the measurement vehicle having the conventional dedicated equipment is performed because the measurement vehicle itself is expensive and needs to be traveled only for measurement. It is necessary to set up a special diamond at the time, and the traveling of a general train is reduced, and the detection cost is increased together with the price of the measurement vehicle.
Also, in the case of measurement using a measuring vehicle, a special diagram is formed, so if it is frequently performed, it will affect the running of a normal train, while the measurement frequency is limited if it is a measurement between normal operations. Therefore, it is impossible to detect the ground coil arrangement state and abnormality in real time.

  The present invention has been made in view of such circumstances, and reduces the cost of measuring the position of the ground coil and can measure the position of the ground coil in real time. A measuring system and a ground coil position measuring method for a magnetically levitated railway are provided.

The ground coil position measuring system for a magnetic levitation railway according to the present invention is the position of a ground coil disposed along a track of a magnetic levitation railway that provides a magnetic field necessary for traveling to a superconducting coil of a general train. This is a ground coil position measurement system for a magnetically levitated railway that is evaluated while traveling normally, and is attached to the outer surface of the outer tank in which the superconducting coils are stored on each of the left and right sides of the train vehicle. Magnetic field measurement circuit sheets in which induced voltage measurement circuits comprising loop coils for measuring magnetic flux change and magnetic field strength between a coil and the ground coil are arranged in two upper and lower stages, and each of the induced voltage measurement circuits in two upper and lower stages A calculation unit that calculates an evaluation value of the arrangement position of the ground coil by a predetermined calculation based on the measured value, and the magnetic field measurement circuit sheet is provided on the left side of the vehicle. And is similarly configured on the right is given to the superconducting coil to propel the train in the normal operation, the greater the conductivity the coil from the ground coils based on the magnetic flux interlinking the strength of the magnetic field and A change in magnetic flux is measured, and the loop coil is provided so as to be included in the superconducting coil in plan view.

The ground coil position measuring system for a magnetically levitated railway according to the present invention includes a ground coil specifying unit that determines a ground coil number indicating the ground coil opposed to the superconducting coil, in which the magnetic field measurement circuit sheet measures a magnetic field. It further has these.

In the ground coil position measurement system for a magnetic levitation railway according to the present invention, each of the upper and lower stages of the induced voltage measurement circuit is formed by arranging a plurality of loop coils .
In the ground coil position measurement system for a magnetically levitated railway according to the present invention, the arithmetic unit averages the induced voltages of the plurality of loop coils for each of the upper and lower two-stage magnetic field measuring devices, and the average value of the magnetic field is determined by each average value. It is characterized by measuring changes in strength and magnetic flux.

In the ground coil position measurement system for a magnetically levitated railway according to the present invention, the calculation unit is disposed so as to be opposed to the left and right in the track in the vertical direction deviation, the horizontal direction deviation of the ground coil arranged in the track. The evaluation value including at least a vertical shift between the ground coils and a shift in a gauge distance between the superconducting coil and each of the left and right ground coils is calculated.
The ground coil position measurement system for a magnetically levitated railway according to the present invention is characterized in that the magnetic field measurement circuit sheet is detachably attached to the outer tub.

The ground coil position measuring system for a magnetic levitation railway according to the present invention is the position of a ground coil disposed along a track of a magnetic levitation railway that provides a magnetic field necessary for traveling to a superconducting coil of a general train. Magnetic levitation railway ground coil position measurement method for performing evaluation while traveling normally, and a magnetic field measurement circuit sheet attached to the outer surface of an outer tank in which superconducting coils are stored on both the left and right sides of the train vehicle. In addition, an upper and lower two-stage induced voltage measuring circuit composed of a loop coil measures a change in magnetic flux between the superconducting coil and the ground coil, and a ground coil position measuring process for measuring the magnetic field strength. A calculation step of calculating an evaluation value of the arrangement position of the ground coil based on a measurement value of each of the induced voltage measurement circuits of the magnetic field measurement circuit. But wherein the same structure on the left and right sides of the vehicle, given to the superconducting coil to propel the train in the normal operation, the greater the conductivity the coil from the ground coils based on the magnetic flux interlinking The magnetic field strength and the change in magnetic flux are measured, and the loop coil is provided so as to be included in the superconducting coil in plan view.

  As described above, the present invention detects the magnetic field between the superconducting coil and the ground coil because the magnetic field measuring circuit is provided on the outer surface of the outer tank in which the superconducting coil mounted on the vehicle is stored. This can be done easily by ordinary vehicles that are in normal operation. Therefore, according to the present invention, since the magnetic field strength of the ground coil can be measured without using a measuring wheel as in the prior art, the cost of measuring the position of the ground coil can be reduced compared to the prior art, and in real time. In addition, the position of the ground coil can be measured.

It is a figure for demonstrating the ground coil position measuring system mounted in the train used for the magnetic levitation type railway in a 1st embodiment. It is a figure which shows the correspondence of each of superconducting coil SCR and SCL, and the ground coil which has a levitation guide coil and a propulsion coil. It is a figure of the planar view which shows the positional relationship of the overlap in the superconducting coil SCL and the magnetic field measurement circuit sheet 1L. It is a figure of the planar view which shows the positional relationship of the overlap in the superconducting coil SCL and magnetic field measurement circuit sheet | seat 1L in another structure. It is a figure which shows each equivalent circuit of the magnetic field measurement circuit UCL1-UCLn (in the embodiment, n = 15) in the magnetic field measurement circuit sheet 1L shown in FIG. It is a figure showing an example of composition of ground coil position measuring system 10 used for a magnetic levitation type railroad by one embodiment of the present invention. The figure which shows the structure of the ground coil position table with which each position information of the ground coil 200 arrange | positioned in the track | orbit stored in the table database 15 respond | corresponds with the ground coil number which identifies the ground coil in the position information. It is. The propulsion corresponding to the propulsion coil number of each propulsion coil 202 arranged in the track stored in the measurement value database 16 and the measurement voltage for each magnetic field measurement circuit in the magnetic field measurement circuit sheet corresponding to the propulsion coil number. It is a figure which shows the structure of a coil measurement voltage table. The levitation guide coil number of each of the levitation guide coils 201 arranged in the track stored in the measurement value database 16 and the measurement voltage for each magnetic field measurement circuit in the magnetic field measurement circuit sheet corresponding to the levitation guide coil number are It is a figure which shows the structure of the corresponding levitation guide coil measurement voltage table. It is a figure which shows the structure of the propulsion coil abnormality table memorize | stored in the evaluation database 17 which shows whether each of the propulsion coil arrange | positioned on a track | truck is abnormal or normal. It is a figure which shows the structure of the levitation guide coil abnormality table memorize | stored in the evaluation database 17 which shows whether each of the levitation guide coils arrange | positioned on the track | truck is abnormal or normal. It is a figure which shows the structure of the levitation guide coil evaluation table memorize | stored in the evaluation database 17. FIG. It is a figure which shows the structure of the propulsion coil right-and-left deviation table memorize | stored in the evaluation database. It is a figure which shows the structure of the levitation guide coil height deviation table memorize | stored in the evaluation database. It is a figure which shows the structure of the propulsion coil gauge table memorize | stored in the evaluation database. It is a figure which shows the structure of the levitation guide coil gauge table memorize | stored in the evaluation database 17. FIG. It is a figure which shows the structure of the floating guide coil right-and-left table memorize | stored in the evaluation database. The figure which shows the structure of the ground coil position table with which each position information of the ground coil 200 arrange | positioned in the track | orbit stored in the table database 15 respond | corresponds with the ground coil number which identifies the ground coil in the position information. It is.

<First Embodiment>
Hereinafter, a ground coil magnetic measurement system according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram for explaining a ground coil position measurement system mounted on a train used in a magnetic levitation railway in the first embodiment. Fig.1 (a) is a figure which shows the left side surface of the train used for a magnetic levitation type railway. Here, the left and right sides of the train are set as the left and right of the traveling direction when the train is traveling in the H direction. In FIG. 1A, an outer tank 101 </ b> L is provided on the left side surface 100 </ b> L of the train 100. A magnetic field measurement circuit sheet 1L is arranged on the surface of the outer wall of the outer tub 101L (the outer surface of the outer wall of the outer tub 101L).

FIG. 1B shows a cross section taken along the solid line AA in FIG. 1A and perpendicular to the H direction of the traveling direction. An outer tub 101R is provided on the right side surface 100R of the train 100 with respect to the traveling direction. The outer tub 101R is provided with a superconducting coil SCR. A magnetic field measurement circuit sheet 1R is provided on the surface of the outer wall of the outer tub 101R.
On the other hand, as already shown in FIG. 1A, an outer tub 101L is provided on the left side surface 100L of the train 100 with respect to the traveling direction. The outer tub 101L is provided with a superconducting coil SCL. A magnetic field measurement circuit sheet 1L is provided on the outer wall surface of the outer tub 101L.

  FIG. 2 is a diagram showing a correspondence relationship between each of the superconducting coils SCR and SCL and a ground coil having a levitation guide coil and a propulsion coil. FIG. 2A is a diagram showing a cross-sectional structure perpendicular to the traveling direction H, cut along the solid line AA in FIG. A ground coil 200R is provided on a track 300R on the right side facing the right side 100R of the train 100. The ground coil 200R includes a levitation guide coil 201R that levitates the train 100 and a propulsion coil 202R that propels the train 100 in the traveling direction. Here, when the surface of the superconducting coil SCR facing the ground coil 200R has N poles, the levitation guide coil 201R has a current on each coil such that the lower coil is the N pole and the upper side is the S pole. Flowing.

Similarly, a ground coil 200 </ b> L is provided on the track 300 </ b> L on the left side facing the left side 100 </ b> L of the train 100. The ground coil 200L includes a levitation guide coil 201L that levitates the train 100 and a propulsion coil 202L that propels the train 100 in the traveling direction. Here, when the surface of the superconducting coil SCL facing the ground coil 200L is the S pole, the levitation guide coil 201L has a current on each coil so that the lower coil is the S pole and the upper side is the N pole. Flowing.
FIG. 2B shows the structures of the levitation guide coil 201R and the levitation guide coil 201L in each of the ground coil 200R and the ground coil 200L. As shown in FIG. 2 (b), each of the levitation guide coil 201R and the levitation guide coil 201L is viewed from the guide side (when viewed from a direction perpendicular to the traveling direction H of the train 100). It has a shape. Each of the levitation guide coil 201 </ b> R and the levitation guide coil 201 </ b> L is connected to the vicinity of the 8-shaped intersection by a null flux wire 211 and a null flux wire 212. In the upper loop of the levitation guide coil 201R, the side facing the train 100 becomes the N pole, and in the lower loop of the levitation guide coil 201R, the side S pole faces the train 100, while in the loop above the levitation guide coil 201L. The applied current is controlled so that the side facing the train 100 is the N pole and the side facing the train 100 is the S pole in the lower loop of the levitation guide coil 201L.

As described above, each of the ground coils 200R and 200L causes the train 100 to levitate by the Lorentz force obtained by interlinking the magnetic flux with the currents flowing through the superconducting coils SCR and SCL, respectively, and the tracks (the track 300R and the track 300L). To guide the inside of the magnetically levitated railway). Therefore, the polarity of the propulsion coils (202R and 202L) is sequentially changed, and the train 100 is propelled in the traveling direction in the track by the Lorentz force obtained by interlinking the magnetic flux with the current flowing through the superconducting coils SCR and SCL, respectively. To do.
In the present embodiment, the magnetic field strength between each of the ground coil 200R and the superconducting coil SCR and the magnetic field strength between each of the ground coil 200L and the superconducting coil SCL are measured. In the present embodiment, the arrangement state or abnormality of each of the ground coil 200R and the ground coil 200L is detected based on the measured magnetic field strength.

  FIG. 3 is a plan view showing the positional relationship of the overlap between the superconducting coil SCL and the magnetic field measurement circuit sheet 1L. The superconducting coil SCL includes, for example, each of the superconducting coils SCL1, SCL2, SCL3, and SCL4. That is, each of the superconducting coils SCL1, SCL2, SCL3, and SCL4 is disposed, for example, in an outer tank 101L provided on the right side surface 100L of the train 100. Similarly, although not shown, the superconducting coil SCL includes, for example, each of the superconducting coils SCL1, SCL2, SCL3, and SCL4. That is, each of the superconducting coils SCL1, SCL2, SCL3, SCL4 is disposed in an outer tub provided on the left side surface 100L of the train 100, for example. These outer tanks are installed for maintaining a vacuum environment for heat insulation and for electromagnetic / mechanical support and protection.

As shown in FIG. 3, the magnetic field measurement circuit sheet 1L attached to the outer wall surface of the outer tub 101L has a magnetic field (induced voltage) measurement circuit composed of loop-shaped coils (search coils) in 2 rows and 15 columns. Thirty pieces are provided by arrangement. Magnetic field measurement circuits UCL1 to UCL15 are arranged in the first line (upper stage) of the magnetic field measurement circuit sheet 1L, and magnetic field measurement circuits DCL1 to DCL15 are provided in the second line (lower stage).
Usually, the four superconducting coils SCL1, SCL2, SCL3, and SCL4 are arranged corresponding to the basic spatial magnetic field distribution generated by the levitating guide coil 201L with respect to the three-phase AC cycle by the propulsion coil 202L. However, these magnetic fields are stationary magnetic fields and are not basically detected by the search coil as in this configuration. Therefore, in this embodiment, the magnetic field is arranged corresponding to the spatial fifth harmonic generated mainly by the levitation guide coil. Yes. On the other hand, in the present embodiment, when measuring the magnetic field, the magnetic field generated by the third or sixth harmonic is basically detected with respect to time. However, the basic spatial magnetic field distribution with respect to the three-phase alternating current period or generated by the levitating guide coil 201L can also be detected in this configuration when the superconducting magnet fluctuates with respect to the levitating guide coil. Absent.

  In FIG. 3, for example, the induced voltage measurement circuits UCL1 to UCL4 and the induced voltage measurement circuits DCL1 to DCL4 overlap spatially with the superconducting coil SCL1 in plan view via the outer wall of the outer tub 101L. Facing each other. Similarly, a part of the induced voltage measurement circuits UCL4 and DCL4, the induced voltage measurement circuits UCL5 to UCL7, the induced voltage measurement circuits DCL5 to DCL7, the induced voltage measurement circuit UCL8, and the like with respect to the superconducting coil SCL2 spatially. It opposes via the outer wall of an outer tank so that a part of DCL8 may overlap with planar view. Spatally with respect to the superconducting coil SCL3, a part of the induced voltage measuring circuits UCL8 and DCL8, induced voltage measuring circuits UCL9 to UCL11, induced voltage measuring circuits DCL9 to DCL11, and one of the induced voltage measuring circuits UCL12 and DCL12. It opposes via the outer wall of an outer tank so that a part may overlap with planar view. Spatially, the outer tank so that a part of the induced voltage measurement circuits UCL12 and DCL12, the induced voltage measurement circuits UCL13 to UCL15, and the induced voltage measurement circuits DCL13 to DCL15 overlap with the superconducting coil SCL4 in plan view. It faces through the outer wall.

  In FIG. 3, “U”, “W”, and “V” described below each of the induced voltage measurement circuits indicate three phase alternating currents in the three-phase alternating current. That is, an induced voltage measuring coil corresponding to a three-phase alternating current, for example, a U-phase induced voltage measuring coil Ui, a W-phase induced voltage measuring coil Wi, and a V-phase induced voltage measuring coil Vi are combined into an outer tank. Sequentially arranged along the surface. Here, i is an integer, and 1 ≦ i ≦ n. It shows that one cycle of the induced voltage measurement circuit is arranged corresponding to the spatial fifth harmonic.

  Each of the induced voltage measuring circuit UCL1 to the induced voltage measuring circuit UCL15 is to pass while facing the main coil on the upper side of the ground coil 200L disposed on the track because the train 100 is propelled in the traveling direction. Become. At this time, a measurement voltage of a voltage value (induced voltage generated in the search coil) corresponding to the magnetic field strength of the ground coil 200L is output for each induced voltage measurement circuit of the induced voltage measurement circuit sheet 1L. Further, since the superconducting coil SCL crosses the magnetic field of the ground coil 200L, this measurement voltage is supplied as a pulse. A result of time integration of the voltage of this pulse is a magnetic flux penetrating the search coil (= magnetic field × search coil area).

  Similarly, each of the induced voltage measurement circuit DCL1 to the induced voltage measurement circuit DCL15 passes while facing the main coil on the lower side of the ground coil 200L disposed on the track because the train 100 is propelled. become. At this time, a measurement voltage having a voltage value corresponding to the strength of the magnetic field between the ground coils 200L is output for each induced voltage measurement circuit of the induced voltage measurement circuit sheet 1L. Further, since the superconducting coil SCL crosses the magnetic field of the ground coil 200L, this measurement voltage is supplied as a pulse. A result of time integration of the voltage of this pulse is a magnetic flux penetrating the search coil (= magnetic field × search coil area).

  The induced voltage measuring circuit sheet in the induced voltage measuring circuit sheet 1R provided on the outer surface of the outer tank 101R on the right side surface 100R of the train 100 is also the induced voltage measuring circuit sheet provided in the outer tank 101L on the left side surface 100L. The configuration is the same as 1L. That is, each of the magnetic field measurement circuits of the induced voltage measurement circuit sheet 1R has the same positional relationship as that of the superconducting coil SCR (SCR1, SCR2, SCR3, and SCR4), and each of them measures the magnetic field between the ground coil 200R. To do.

  FIG. 4 is a plan view showing an overlapping positional relationship between the superconducting coil SCL and the induced voltage measurement circuit sheet 1L in another configuration. The superconducting coil SCL has superconducting coils SCL1, SCL2, SCL3, and SCL4 as in FIG. Although not shown, the superconducting coil SCL includes superconducting coils SCL1, SCL2, SCL3, and SCL4, for example, as in FIG.

As shown in FIG. 4, the induced voltage measurement circuit sheet 1L attached to the surface of the outer wall of the outer tub 101L is provided with 60 induced voltage measurement circuits made of loop-shaped coils arranged in 2 rows and 30 columns. ing. The induced voltage measuring circuits UCL1 to UCL30 are arranged in the first line (upper stage) of the magnetic field measuring circuit sheet 1R, and the induced voltage measuring circuits DCL1 to DCL30 are arranged in the second line (lower stage).
Usually, the four superconducting coils SCL1, SCL2, SCL3, and SCL4 are arranged corresponding to the basic spatial magnetic field distribution generated by the levitating guide coil 201L with respect to the three-phase AC cycle by the propulsion coil 202L. On the other hand, in this embodiment, it arrange | positions corresponding to a spatial fifth harmonic. Furthermore, in the present embodiment, the magnetic field generated by the time sixth harmonic is detected when measuring the magnetic field. In the case of this configuration, similarly to the magnetic field measurement circuit sheet 1L, the magnetic field measurement circuit sheet 1R attached to the surface of the outer wall of the outer tub 101R has a 2 × 30 arrangement of magnetic field measurement circuits formed of loop coils. 60 are provided.

FIG. 5 is a diagram showing an equivalent circuit of each of the induced voltage measurement circuits UCL1 to UCLn (n = 15 or 30 in the embodiment) in the magnetic field measurement circuit sheet 1L shown in FIG. 3 and FIG. Each of the induced voltage measurement circuits UCL1 to UCLn outputs the measurement voltages VUL1 to VULn using the magnetic field detected by each coil as a measurement voltage. Although not shown, each of the induced voltage measurement circuits DCL1 to DCLn is an equivalent circuit similar to the induced voltage measurement circuits UCL1 to UCLn, and outputs the measurement voltages VDR1 to VDRn detected by each coil. Here, in this embodiment, n in FIG. 3 is 15, and n in FIG.
Although not shown, each of the magnetic field measurement circuits UCR1 to UCRn and DCR1 to DCRn in the magnetic field measurement circuit sheet 1R is also measured with the measurement voltages VUR1 to VURn and VDR1 to VDRn detected by each coil, similarly to the magnetic field measurement circuit sheet 1L. Output each one.

FIG. 6 is a diagram illustrating a configuration example of the ground coil position measurement system 10 used in the magnetic levitation railway according to the embodiment of the present invention. The ground coil position measurement system 10 includes a control unit 11, a ground coil specifying unit 12, a calculation unit 13, a determination unit 14, a table database 15, a measurement value database 16, and an evaluation database 17.
The control unit 11 inputs the measurement voltages VUR1 to VUR15 and the measurement voltages VDR1 to VDR15 output from the induced voltage measurement circuits UCR1 to UCR15 and the induced voltage measurement circuits DCR1 to DCR15, respectively, from the magnetic field measurement circuit sheet 1R. That is, the control unit 11 inputs information including measurement voltages VUR1 to VUR15 and measurement voltages VDR1 to VDR15 as measurement voltage information. Here, each measurement voltage is supplied as a pulse. Further, the control unit 11 passes the measurement voltages VUR1 to VUR15 and VDR1 to VDR15 in the measurement voltage information through a noise filter, and then performs A / D according to a predetermined sampling period (having a resolution sufficient to reproduce the pulse shape). It is converted into digital data indicating a pulse waveform by a converter, and is temporarily written and stored in an internal storage unit.

Similarly, the control unit 11 inputs the measurement voltages VUL1 to VUL15 and VDL1 to VDL15 output from the induced voltage measurement circuits UCL1 to UCL15 and the induced voltage measurement circuits DCL1 to DCL15, respectively, from the magnetic field measurement circuit sheet 1L. . That is, the control unit 11 inputs information including measurement voltages VUL1 to VUL15 and measurement voltages VDL1 to VDL15 as measurement voltage information. Here, each measurement voltage is supplied as a pulse. Further, the control unit 11 passes the measurement voltages VUL1 to VUL15 and VDL1 to VDL15 through a noise filter, and then performs a pulse by an A / D converter at a predetermined sampling period (having a resolution that can reproduce the shape of the pulse). It is converted into digital data indicating a waveform, and is once written and stored in an internal storage unit. The control unit 11 also performs integration for converting the measurement voltage into the magnetic flux density.
Moreover, the control part 11 inputs the gyro information from the gyroscope arrange | positioned at the trolley | bogie 100 which fixes the superconducting magnet SCR in the train 100 or the superconducting magnet SCR. This gyro information is a measured value of the absolute position and posture of the outer tub (vertical (y-axis) direction, left-right (x-axis) direction, low, pitch, yaw, etc.). The control unit 11 once writes and stores in the internal internal storage unit together with the measurement voltage information according to the sampling period.
As will be described later, the gyro information is used in the following calculation performed by the calculation unit 13.
True mounting position (error) of ground coil = relative ground oil position as seen from the bogie measured in the present invention−absolute position of the bogie measured with a gyro

The ground coil specifying unit 12 detects the position of each of the levitation guide coil 201R and the propulsion coil 202R through which each of the superconducting coils SC1R to SC4R is currently passing, and outputs the detection result to the control unit 11.
Further, the position of each of the levitation guide coil 201L and the propulsion coil 202L through which each of the superconducting coils SC1L to SC4L is currently passing is detected, and the detection result is output to the control unit 11.

  FIG. 7 shows a ground coil position table stored in the table database 15 and corresponding to each position information of the ground coils 200 arranged in the orbit and a ground coil number identifying the ground coil in the position information. It is a figure which shows a structure. FIG. 7A shows the configuration of the propulsion coil position table indicating the correspondence between the position information of the propulsion coils 202R and 202L in the ground coil 200 and the propulsion coil numbers identifying the propulsion coils 202R and 202L at the positions. Yes. Here, m is a number indicating the total number of propulsion coils 202R and 202L arranged on a track between stations, for example, through which the train 100 passes. The propulsion coil numbers are assigned in the order of arrangement of the propulsion coils 202R and 202L, for example, from an upstream departure station to the next station between stations.

  On the other hand, FIG. 7B shows the position of the levitation guide coils 201R and 201L in the ground coil 200 and the levitation guide coil position indicating the correspondence between the levitation guide coils 201R and 201L at the positions. The table structure is shown. Here, q is a number indicating the total number of levitation guide coils 201R and 201L arranged on a track for each station through which the train 100 passes, for example. The levitation guide coil numbers are assigned in the order of arrangement of the levitation guide coils 201R and 201L, for example, from an upstream departure station between stations to the next station.

  Returning to FIG. 6, the terrestrial coil specifying unit 12 determines the position of the magnetic field measurement circuit in the magnetic field measurement circuit sheet 1R from the GPS (Global Positioning System) circuit provided in each of the magnetic field measurement circuits in the magnetic field measurement circuit sheet 1R. Detect by (GPS information). And the ground coil specific | specification part 12 determines whether the magnetic field which each of the magnetic field measurement circuit in the magnetic field measurement circuit sheet | seat 1R has detected is by which floating guide coil 201R and the propulsion coil 202R.

  That is, the ground coil specifying unit 12 refers to the levitation guide coil position table in the table database 15 based on the position information from the GPS circuit corresponding to the magnetic field measurement circuit, and levitates the levitation guide coil 201R corresponding to the position of the magnetic field measurement circuit. The guide coil number is extracted, and the levitation guide coil 201R that detects the magnetic field is specified. Similarly, the ground coil specifying unit 12 refers to the propulsion coil position table in the table database 15 based on the position information from the GPS circuit corresponding to the magnetic field measurement circuit, and the propulsion coil of the propulsion coil 202R corresponding to the position of the magnetic field measurement circuit. The number is extracted, and the propulsion coil 202R that detects the magnetic field is specified.

  On the other hand, the ground coil specifying unit 12 determines the position of the magnetic field measurement circuit in the magnetic field measurement circuit sheet 1L from the GPS circuit provided in each of the magnetic field measurement circuit sheets in the magnetic field measurement circuit sheet 1L, as in the case of the magnetic field measurement circuit sheet 1R. Is detected by position information. And the ground coil specific | specification part 12 determines whether the magnetic field which each of the magnetic field measurement circuit in the magnetic field measurement circuit sheet | seat 1L has detected is by which floating guide coil 201L and the propulsion coil 202L.

  That is, the ground coil specifying unit 12 refers to the levitation guide coil position table in the table database 15 based on the position information from the GPS circuit corresponding to the magnetic field measurement circuit, and levitates the levitation guide coil 201L corresponding to the position of the magnetic field measurement circuit. The guide coil number is extracted, and the levitation guide coil 201L detecting the magnetic field is specified. Similarly, the ground coil specifying unit 12 refers to the propulsion coil position table in the table database 15 based on the position information from the GPS circuit corresponding to the magnetic field measurement circuit, and the propulsion coil of the propulsion coil 202L corresponding to the position of the magnetic field measurement circuit. The number is extracted and the propulsion coil 202L detecting the magnetic field is specified. Here, the position information indicates the installation ranges of the propulsion coil and the levitation guide coil, that is, the lengths of the propulsion coil and the levitation guide coil.

  The control unit 11 corresponds to the propulsion coil number specified by the ground coil specifying unit 12, and measures the measured voltage (for example, the maximum value in the measured voltage of the pulse waveform of each induced voltage measuring circuit) in the measured value database 16. Write and store. That is, the control unit 11 associates the maximum voltage value within the range of position information in the measured voltage stored in the internal storage unit with the propulsion coil number as the intensity value of the electric field of the propulsion coil indicated by the propulsion coil number. The measured voltage is written into the measured value database 16 and stored.

  Similarly, the measured voltage (for example, the maximum value in the measured voltage of the pulse waveform of each magnetic measuring circuit) corresponding to the levitation guide coil number specified by the ground coil specifying unit 12 is written in the measured value database 16. Remember. That is, the control unit 11 sets the maximum voltage value within the range of the position information in the measured voltage stored in the internal storage unit as the levitation guide coil number as the strength value of the magnetic field of the levitation guide coil indicated by the levitation guide coil number. Correspondingly, the measurement voltage is written and stored in the measurement value database 16.

  FIG. 8 shows the propulsion coil numbers of the propulsion coils 202 arranged in the track, stored in the measurement value database 16, and the measurement voltages for the magnetic field measurement circuits in the magnetic field measurement circuit sheet corresponding to the propulsion coil numbers. It is a figure which shows the structure of the propulsion coil measurement voltage table to which corresponds. FIG. 8A shows the configuration of the propulsion coil measurement voltage table showing the correspondence between the propulsion coil number of the propulsion coil 202L in the ground coil 200 and the measurement voltage obtained by measuring the magnetic field strength of the propulsion coil 202L indicated by the propulsion coil number. Show. That is, the measurement voltages VUL1 to VUL15 of the magnetic field measurement circuits UCL1 to UCL15 and the measurement voltages VDL1 to VDL15 of the magnetic field measurement circuits DCL1 to DCL15 are associated with the propulsion coil numbers, respectively. It is written and stored in the propulsion coil measurement voltage table in the measurement value database 16.

  FIG. 8B shows the configuration of the propulsion coil measurement voltage table showing the correspondence between the propulsion coil number of the propulsion coil 202R in the ground coil 200 and the measurement voltage obtained by measuring the magnetic field strength of the propulsion coil 202R indicated by the propulsion coil number. Show. That is, the measurement voltages VUR1 to VUR15 of the magnetic field measurement circuits UCR1 to UCR15 and the measurement voltages VDR1 to VDR15 of the magnetic field measurement circuits DCR1 to DCR15 are associated with the propulsion coil numbers, respectively. It is written and stored in the propulsion coil measurement voltage table in the measurement value database 16.

  FIG. 9 shows the levitation guide coil numbers of the levitation guide coils 201 arranged in the track stored in the measurement value database 16 and the magnetic field measurement circuit in the magnetic field measurement circuit sheet corresponding to the levitation guide coil number. It is a figure which shows the structure of the levitation guide coil measurement voltage table with which the measurement voltage respond | corresponds. FIG. 9A shows the correspondence between the levitation guide coil number of the levitation guide coil 201L in the ground coil 200 and the measured voltage obtained by measuring the electric field strength of the levitation guide coil 201L and the superconducting coil SCL indicated by the levitation guide coil number. The structure of the propulsion coil measurement voltage table shown is shown. That is, the measurement voltages VUL1 to VUL15 of the magnetic field measurement circuits UCL1 to UCL15 and the measurement voltages VDL1 to VDL15 of the magnetic field measurement circuits DCL1 to DCL15 are associated with the levitation guide coil numbers, respectively. The measured value database 16 is written and stored in the levitation guide coil measurement voltage table.

  FIG. 9B shows the correspondence between the propulsion coil number of the levitation guide coil 201R in the ground coil 200 and the measurement voltage obtained by measuring the electric field strength of the levitation guide coil 202R indicated by the levitation guide coil number and the superconducting coil SCR. The structure of the levitation guide coil position table is shown. That is, the measurement voltages VUR1 to VUR15 of the magnetic field measurement circuits UCR1 to UCR15 and the measurement voltages VDR1 to VDR15 of the magnetic field measurement circuits DCR1 to DCR15 are associated with the levitation guide coil numbers, respectively. The measured value database 16 is written and stored in the levitation guide coil measurement voltage table.

  Returning to FIG. 6, the determination unit 14 reads the measurement voltages VUL <b> 1 to VUL <b> 15 and VDR <b> 1 to VDR <b> 15 from the levitation guide coil measurement voltage table of the measurement value database 16. Then, the determination unit 14 determines whether each of the read measurement voltages VUL1 to VUL15 and VDR1 to VDR15 is included in a preset normal voltage range. The determination unit 14 writes and stores the determination result in the levitation guide coil abnormality table stored in the evaluation database 17.

  In other words, the determination unit 14 displays the “levitation guide coil number determination result corresponding to the measurement voltage outside the preset normal voltage range” in the column of the determination result of the levitation guide coil abnormality table stored in the evaluation database 17. Data indicating “abnormal” is written and stored. On the other hand, the determination unit 14 displays the “levitation guide coil number determination result corresponding to the measured voltage within the preset normal voltage range” in the column of the determination result of the levitation guide coil abnormality table stored in the evaluation database 17. Data indicating “normal” is written and stored.

  FIG. 10 is a diagram showing the configuration of the propulsion coil abnormality table stored in the evaluation database 17 indicating whether each of the propulsion coils arranged on the track is abnormal or normal. FIG. 10A shows a propulsion coil number indicating a propulsion coil installed on the track 300L on the left side with respect to the traveling direction of the train 100 in the trajectory, and either an abnormality or normality of the propulsion coil indicated by the propulsion coil number. The structure of the propulsion coil abnormality table in which the determination result is described correspondingly is shown.

  Similarly, FIG. 10B shows the propulsion coil number indicating the propulsion coil installed on the right track 300R with respect to the traveling direction of the train 100 in the track, and the abnormality and normality of the propulsion coil indicated by the propulsion coil number. The structure of the propulsion-coil abnormality table in which the determination result of whether or not is described correspondingly is shown.

  Returning to FIG. 6, the determination unit 14 reads the measurement voltages VUL1 to VUL15 and VDR1 to VDR15 from the propulsion coil measurement voltage table of the measurement value database 16, respectively. Then, the determination unit 14 determines whether each of the read measurement voltages VUL1 to VUL15 and VDR1 to VDR15 is included in a preset normal voltage range. The determination unit 14 writes and stores the determination result in the propulsion coil abnormality table stored in the evaluation database 17.

  In other words, the determination unit 14 sets “abnormal” in the determination result column of the propulsion coil number corresponding to the measured voltage outside the preset normal voltage range with respect to the propulsion coil abnormality table stored in the evaluation database 17. Is written and stored. On the other hand, the determination unit 14 displays “normal” in the determination result column of the propulsion coil number corresponding to the measured voltage within the normal voltage range set in advance with respect to the propulsion coil abnormality table stored in the evaluation database 17. Is written and stored.

  FIG. 11 is a diagram showing the configuration of the levitation guide coil abnormality table stored in the evaluation database 17 indicating whether each of the levitation guide coils arranged on the track is abnormal or normal. FIG. 11A shows the levitation guide coil number indicating the levitation guide coil installed on the track 300L on the left side with respect to the traveling direction of the train 100 in the trajectory, the abnormality of the levitation guide coil indicated by the levitation guide coil number, and The structure of the levitation guide coil abnormality table in which the determination result as to whether it is normal is described correspondingly. Similarly, FIG. 10B shows a levitation guide coil number indicating a levitation guide coil installed on a track 300R on the right side with respect to the traveling direction of the train 100 in the track, and a levitation guide coil indicated by the levitation guide coil number. The structure of the levitation guide coil abnormality table in which the determination result as to whether the abnormality is normal or normal is indicated.

Returning to FIG. 6, the calculation unit 13 reads the measurement voltage from the levitation guide coil measurement voltage table in the measurement value database 16, and performs an operation for detecting each arrangement state and abnormality of the levitation guide coil 201.
For example, the calculation unit 13 performs the following calculation in order to detect the height of the levitation guide coil 201L in the track 300L.
The calculation unit 13 sequentially reads the measurement voltage VUL15 from the measurement voltage VUL1 for each levitation guide coil number from the levitation guide coil measurement voltage table in the measurement value database 16, and average measurement is an average value of the measurement voltage VUL1 from the measurement voltage VUL1. The voltage VUL is obtained.

Further, the calculation unit 13 sequentially reads the measurement voltage VDL15 from the measurement voltage VDL1 for each levitation guide coil number from the levitation guide measurement voltage table in the measurement value database 16, and averages the average value of the measurement voltage VDL15 from the measurement voltage VDL1. The measurement voltage VDL is obtained.
Then, the calculation unit 13 subtracts the average measurement voltage VDL from the average measurement voltage VUL for each levitation guide coil, averages the subtraction results in terms of time, and the average of the measurement voltage VDL15 from the instantaneous instantaneous measurement voltage VDL1. The vertical error value VUDL is obtained by comparing with the value.

Similarly, the calculation unit 13 performs the following calculation in order to detect the height of the levitation guide coil 2021R in the ground coil in the track 300R.
The calculation unit 13 sequentially reads the measurement voltage VUR15 from the measurement voltage VUR1 for each levitation guide coil number from the levitation guide coil measurement voltage table in the measurement value database 16, and average measurement is an average value of the measurement voltage VUR15 from the measurement voltage VUR1. The voltage VUR is obtained.

In addition, the calculation unit 13 sequentially reads the measurement voltage VDR15 from the measurement voltage VDR1 for each levitation guide coil number from the levitation guide measurement voltage table in the measurement value database 16, and averages the average value of the measurement voltage VDR15 from the measurement voltage VDR1. The measurement voltage VDL is obtained.
The calculation unit 13 subtracts the average measurement voltage VDR from the average measurement voltage VUR for each levitation guide coil, averages the subtraction results in terms of time, and the average value of the measurement voltage VDL15 from the instantaneous instantaneous measurement voltage VDL1. The vertical error value VUDR is obtained by comparison. By this calculation process, it is possible to estimate the deviation of the levitation guide coil having a short wavelength component. On the other hand, it is possible to determine the deviation of the longer wavelength floating guide coil. When the deviation of the longer-wavelength levitation guide coil is obtained, it is possible to directly compare the average measurement voltage VUR or the average measurement voltage VDR itself with the absolute position of the carriage 100 of the train 100 obtained by the gyro.

Further, the table database 15 stores a vertical error value table indicating the correspondence between the voltage value of the vertical error value and the shifted distance (for example, in cm).
The calculation unit 13 refers to the vertical error value table in the table database 15 to obtain a shifted distance corresponding to the voltage value of the vertical error value, and writes it in the evaluation database 17 as the vertical shift of the levitation guide coil 201L in the track 300L. Remember. The vertical displacement of the levitation guide coil 201R on the track 300R is also calculated as described above, and written and stored in the evaluation database 17 as the vertical displacement of the levitation guide coil 201L on the track 300L. Moreover, the calculating part 13 performs the same calculation, calculates | requires the vertical deviation of the levitation guide coil 201R in the ground coil in the track | orbit 300R, writes it in the evaluation database 17, and memorize | stores it.

  FIG. 12 is a diagram showing the configuration of the levitation guide coil evaluation table stored in the evaluation database 17. In FIG. 12, the levitation guide coil evaluation table is a table showing the correspondence between the levitation guide coil number, the calculation result of the calculation unit 13 and the determination result of the determination unit 14 for the levitation guide coil indicated by the levitation guide coil number. FIG. 12A shows the levitation guide coil number, the calculation result of the calculation unit 13 with respect to the levitation guide coil 201L indicated by the levitation guide coil number (vertical shift, height as an absolute position, mounting error) and the determination unit 14 It is a floating guide coil evaluation table which shows a response | compatibility with a determination result. FIG. 12B shows the floating guide coil number, the calculation result (vertical shift, height as an absolute position, mounting error) of the calculation unit 13 with respect to the floating guide coil 201R indicated by the floating guide coil number, and the determination unit 14 It is a floating guide coil evaluation table which shows a response | compatibility with a determination result.

Returning to FIG. 6, the calculation unit 13 writes and stores the vertical displacement of the levitation guide coil 201 </ b> L obtained by the calculation corresponding to the levitation guide coil number of the levitation guide coil evaluation table shown in FIG.
Similarly, the calculation unit 13 writes and stores the vertical deviation of the levitation guide coil 201R obtained by calculation corresponding to the levitation guide coil number in the levitation guide coil evaluation table shown in FIG.

Next, the calculation unit 13 subtracts this shifted distance from an ideal position (height from the lower surface of the track) stored in advance in the internal storage unit, and the magnetic measurement circuit sheet 1L of the train 100 is subtracted. The relative position of the levitation guide coil (height from the lower surface of the track) is obtained.
Further, the calculation unit 13 subtracts the absolute position information of the magnetic measurement circuit sheet 1L obtained from a gyro etc. from the relative position of the levitation guide coil 201, and an error in the attachment position of the levitation guide coil 201 (attachment error). ) The correction using the position information of the gyroscope needs to be performed because the measurement voltage measured by each of the induced voltage measurement circuits includes an error component due to the variation of the absolute position of the train 100.

In addition, the calculation unit 13 detects the height of the levitation guide coil 201R in the ground coil in the track 300R by performing the same calculation as that of the levitation guide coil 201L described above. Although not shown, the gyro measures each of the levitation guide coil 201L and the levitation guide coil 201R by measuring the translational acceleration and the acceleration in the rotational direction as absolute position information, and calculating the integral with respect to this acceleration. Find the height of the absolute position.
The calculation unit 13 writes and stores the obtained heights as absolute positions of the levitation guide coil 201L and the levitation guide coil 201R in the levitation guide coil evaluation table of the evaluation database 17 in correspondence with the levitation guide coil number. Let

And the calculating part 13 subtracts the height as an absolute position of the levitation guide coil 201L from the relative height of the levitation guide coil 201L, and uses the subtraction result as an attachment error. The calculation unit 13 writes and stores the calculated attachment error of the levitation guide coil 201L in the levitation guide coil evaluation table of the evaluation database 17 corresponding to the levitation guide coil number.
Similarly, the calculation unit 13 subtracts the height as the absolute position of the levitation guide coil 201R from the relative height of the levitation guide coil 201R, and sets the subtraction result as an attachment error. The calculation unit 13 writes and stores the calculated attachment error of the levitation guide coil 201R in the levitation guide coil evaluation table of the evaluation database 17 corresponding to the levitation guide coil number.

  The determination unit 14 reads the mounting error from the levitation guide coil evaluation table of the evaluation database 17 and compares the absolute value of the read mounting error with the mounting error threshold value stored in the storage unit within itself. When the absolute value of the attachment error is equal to or larger than the attachment error threshold, the determination unit 14 writes data indicating “abnormal” in the determination result column of the levitation guide coil evaluation table of the evaluation database 17. On the other hand, when the absolute value of the mounting error is less than the mounting error threshold, the determination unit 14 writes data indicating “normal” in the determination result column of the levitation guide coil evaluation table of the evaluation database 17.

  Moreover, the calculating part 13 reads the height as an absolute value of each corresponding propulsion coil number from the propulsion coil evaluation table of the evaluation database 17. For example, the calculation unit 13 reads the heights of the propulsion coil number 202L1 and the propulsion coil number 202R1 as absolute values. The calculation unit 13 subtracts the height as the absolute value of the propulsion coil number 202R1 from the height as the absolute value of the propulsion coil number 202L1.

  The calculation unit 13 sets the subtraction result as a left / right shift, and writes and stores it in the propulsion coil left / right shift table of the evaluation database 17 corresponding to the set of propulsion coil numbers. The set of propulsion coil numbers indicates a propulsion coil number indicating a propulsion coil disposed on the left track with respect to the traveling direction of the train 100 and a propulsion coil disposed on the right track with respect to the traveling direction of the train 100. Pair with propulsion coil number. For example, the propulsion coil number sets include propulsion coil number 202L1 and propulsion coil number 202R1.

  FIG. 13 is a diagram showing a configuration of the propulsion coil left-right shift table stored in the evaluation database 17. In FIG. 13, the propulsion coil left / right deviation table includes a set of propulsion coil numbers and a left / right shift that is a difference in height as the absolute value of each of the propulsion coils indicated by the set of propulsion coil numbers, and a determination result in the determination unit 14. It is a table which shows a response | compatibility.

  Returning to FIG. 6, the determination unit 14 reads out the left / right deviation from the propulsion coil left / right deviation table of the evaluation database 17, the absolute value of the read right / left deviation, and the left / right deviation difference threshold ( And a threshold value corresponding to the propulsion coil). When the absolute value of the left / right deviation is equal to or greater than the left / right deviation threshold, the determination unit 14 writes data indicating “abnormal” in the determination result column of the propulsion coil left / right deviation table of the evaluation database 17. On the other hand, when the absolute value of the left / right deviation is less than the left / right deviation threshold, the determination unit 14 writes data indicating “normal” in the determination result column of the propulsion coil left / right deviation table of the evaluation database 17.

  Moreover, the calculating part 13 reads the height as an absolute value of each corresponding levitation guide coil number from the levitation guide coil evaluation table of the evaluation database 17. For example, the calculation unit 13 reads the heights as absolute values of the levitation guide coils having the levitation guide coil number 201L1 and the levitation guide coil number 201R1. The calculation unit 13 subtracts the height as the absolute value of the levitation guide coil having the levitation guide coil number 201R1 from the height as the absolute value of the levitation guide coil having the levitation guide coil number 201L1.

  The calculation unit 13 sets the subtraction result as a height deviation, and writes and stores it in the levitation guide coil height deviation table of the evaluation database 17 corresponding to the set of levitation guide coil numbers. The set of the levitation guide coil number is the levitation guide coil number indicating the levitation guide coil arranged on the left track with respect to the traveling direction of the train 100, and the levitation disposed on the right track with respect to the traveling direction of the train 100. It is a set with a floating guide coil number indicating a guide coil. For example, as a set of levitation guide coil numbers, there is a set of each levitation guide coil having a levitation guide coil number 201L1 and a levitation guide coil number 201R1.

  FIG. 14 is a diagram showing the configuration of the levitation guide coil height deviation table stored in the evaluation database 17. In FIG. 14, the levitation guide coil height deviation table includes a height deviation that is a difference in height as an absolute value of each of the levitation guide coil number and the levitation guide coil indicated by the set of the levitation guide coil number, It is a table which shows a response | compatibility with the determination result in the determination part 14. FIG.

  Returning to FIG. 6, the determination unit 14 reads the height deviation from the height deviation coil height deviation table of the evaluation database 17, and stores the absolute value of the read height deviation and the height stored in the storage unit within itself. It compares with a deviation difference threshold value (threshold value corresponding to a floating guide coil). When the absolute value of the height deviation is equal to or higher than the height deviation threshold, the determination unit 14 writes data indicating “abnormal” in the determination result column of the levitation guide coil height deviation table of the evaluation database 17. On the other hand, when the absolute value of the height deviation is less than the height deviation threshold, the determination unit 14 writes data indicating “normal” in the determination result column of the levitation guide coil height deviation table of the evaluation database 17.

Moreover, the calculating part 13 adds the average measured voltage VUL and the average measured voltage VDL for every propulsion coil, and calculates | requires the addition value VSUML.
Similarly, the calculation unit 13 adds the average measurement voltage VUR and the average measurement voltage VDR for each propulsion coil to obtain an addition value VSUMR.
The calculation unit 13 subtracts the addition value VSUMR from the addition value VSUML and sets the subtraction result as a gauge error VRL. The calculation unit 13 writes and stores the gauge error VRL, which is the subtraction result, in the propulsion coil gauge table of the evaluation database 17 corresponding to the set of propulsion coil numbers.
The arrangement state of the propulsion coil corresponding to the track 300L or the track 300R can be determined based on the gauge error. For example, it is possible to determine the unbalanced arrangement state of the left and right propulsion coils, such as when one of the propulsion coils of the track 300L or the track 300R protrudes and is disposed or disconnected.

  FIG. 15 is a diagram showing the configuration of the propulsion coil gauge table stored in the evaluation database 17. In FIG. 15, the propulsion coil gauge table includes a set of propulsion coil numbers, a gauge error indicating the magnitude of the difference in gauge distance between the propulsion coils indicated by the set of propulsion coil numbers, and a determination result in the determination unit 14. It is a table which shows correspondence.

Returning to FIG. 6, the determination unit 14 reads the gauge error VRL from the propulsion coil gauge table of the evaluation database 17. Then, the determination unit 14 compares the read gauge error VRL with a preset gauge error threshold.
When the gauge error VRL in the propulsion coil is greater than or equal to the gauge error threshold, the determination unit 14 is in an abnormal state where the gauge error VRL, which is an error in the distance between the left and right gauges with respect to the traveling direction of the train 100, exceeds the normal range. Is determined. When the gauge error VRL, which is an error in the distance between the left and right gauges, is outside the normal range, the determination unit 14 writes data indicating “abnormal” in the determination result column of the levitation guide coil gauge table of the evaluation database 17.

  On the other hand, when the gauge error VRL in the propulsion coil is less than the gauge error threshold, the determination unit 14 is in a normal state where the gauge error VRL, which is an error in the distance between the left and right gauges with respect to the traveling direction of the train 100, is within the normal range. It is determined that And the determination part 14 writes the data which show "normal" in the column of the determination result of the levitation guide coil gauge table of the evaluation database 17, when the gauge error VRL is in a normal range.

Moreover, the calculating part 13 adds the average measurement voltage VUL and the average measurement voltage VDL for every levitation guide coil, and calculates | requires the addition value VSUML.
Similarly, the calculation unit 13 adds the average measurement voltage VUR and the average measurement voltage VDR for each levitation guide coil to obtain an addition value VSUMR.
The calculation unit 13 subtracts the addition value VSUMR from the addition value VSUML and sets the subtraction result as a gauge error VRL. The calculation unit 13 writes and stores the gauge error VRL, which is the subtraction result, in the levitation guide coil gauge table of the evaluation database 17 corresponding to the set of levitation guide coil numbers.

  Based on the error between the tracks, it is possible to determine the arrangement state of each of the levitation guide coils 201L and 201R corresponding to each of the track 300L or the track 300R. For example, determination of an unbalanced arrangement state of the left and right corresponding levitation guide coils, such as one of the levitation guide coils of the track 300L or the track 300R protruding or being arranged or disconnected, or a null flux wire being disconnected or miswired. It can be performed.

  FIG. 16 is a diagram showing the configuration of the levitation guide coil gauge table stored in the evaluation database 17. In FIG. 16, the levitation guide coil gauge table includes a levitation guide coil number set, a gauge error indicating the magnitude of a difference in gauge distance between the levitation guide coils indicated by the set of levitation guide coil numbers, and a determination unit 14. It is a table which shows a response | compatibility with a determination result.

Returning to FIG. 6, the determination unit 14 reads the gauge error VRL from the levitation guide coil gauge table of the evaluation database 17. Then, the determination unit 14 compares the read gauge error VRL with a preset gauge error threshold.
When the gauge error VRL in the levitation guide coil is equal to or greater than the gauge error threshold, the determination unit 14 is in an abnormal state where the gauge error VRL, which is an error in the distance between the left and right gauges with respect to the traveling direction of the train 100, exceeds the normal range. Judge that there is. When the gauge error VRL, which is an error in the distance between the left and right gauges, is outside the normal range, the determination unit 14 writes data indicating “abnormal” in the determination result column of the levitation guide coil gauge table of the evaluation database 17.

  On the other hand, when the gauge error VRL in the levitation guide coil is less than the gauge error threshold, the determination unit 14 determines that the gauge error VRL, which is an error in the distance between the left and right gauges with respect to the traveling direction of the train 100, is in a normal range. It is determined that it is in a state. And the determination part 14 writes the data which show "normal" in the column of the determination result of the levitation guide coil gauge table of the evaluation database 17, when the gauge error VRL is in a normal range.

The calculation unit 13 adds the addition value VSUMR from the addition value VSUML and sets the addition result as a left-right error VGRL. The calculation unit 13 writes and stores the left / right error VGRL, which is the addition result, in the floating guide coil left / right table of the evaluation database 17 corresponding to the set of floating guide coil numbers.
FIG. 17 is a diagram showing a configuration of the left and right levitation guide coils stored in the evaluation database 17. In FIG. 17, the levitation guide coil left / right table is a table showing the correspondence between the set of levitation guide coil numbers, the left / right error of each levitation guide coil indicated by the set of levitation guide coil numbers, and the determination result in the determination unit 14. is there.

Returning to FIG. 6, the determination unit 14 reads the left / right error VGRL from the table for raising guide coil gauge of the evaluation database 17. Then, the determination unit 14 compares the read left / right error VGRL with a preset left / right error threshold.
When the left / right error VGRL in the levitation guide coil is equal to or greater than the left / right error threshold, the determination unit 14 is in an abnormal state where the left / right error VGRL, which is an error in the intensity of the left / right magnetic field with respect to the traveling direction of the train 100 Judge that there is. When the left / right error VGRL, which is an error in the strength of the left and right magnetic fields, is outside the normal range, the determination unit 14 writes data indicating “abnormal” in the determination result column of the left and right table of the levitation guide coil in the evaluation database 17.

  On the other hand, when the left / right error VGRL in the levitation guide coil is less than the left / right error threshold, the determination unit 14 is in a normal state where the left / right error VGRL, which is an error in the left / right magnetic field strength with respect to the traveling direction of the train 100, is within the normal range. It is determined that Then, when the left / right error VGRL is within the normal range, the determination unit 14 writes data indicating “normal” in the determination result column of the levitation guide coil left / right table of the evaluation database 17.

  The following is an example of a method for calculating superconducting coil vibration. The calculation unit 13 determines the measurement voltage VUR1 to the measurement voltage VUR8 and the measurement voltage VDR1 to the measurement voltage VDR8 for each levitation guide coil number from the levitation guide measurement voltage table (corresponding to FIG. 4) in the measurement value database 16. Is read. Then, the calculation unit 13 adds the measurement voltage VUR4 to the measurement voltage VUR4 and the measurement voltage VDR5 to the measurement voltage VDR8, and sets the addition result as the balance voltage VUDRB1. Similarly, the calculation unit 13 adds the measurement voltage VUR5 to the measurement voltage VUR8 and the measurement voltage VDR1 to the measurement voltage VDR4, and sets the addition result as the balance voltage VUDRB2.

The calculation unit 13 subtracts the balance voltage VUDRB2 from the balance voltage VUDRB1 for each levitation guide coil to obtain a vibration amplitude value VUDRB12. This vibration amplitude value VUDRB12 indicates the magnitude of torsional vibration of superconducting coil SCL1, and indicates the vibration strength of superconducting coil SCR1 with respect to the traveling direction.
The calculation unit 13 writes and stores the calculated vibration amplitude value VUDRB 12 in the levitation guide coil vibration table of the evaluation database 17 corresponding to the levitation guide coil number.

Returning to FIG. 6, the determination unit 14 reads the vibration amplitude value VUDRB 12 from the superconducting coil vibration table of the evaluation database 17. Then, the determination unit 14 compares the read VUDRB 12 with a preset vibration amplitude value threshold value.
When the vibration amplitude value VUDRB12 in the superconducting coil SCR is equal to or greater than the vibration amplitude value threshold, the determination unit 14 determines that the vibration amplitude value VUDRB12, which is the amplitude value of the vibration of the superconducting coil SCR with respect to the traveling direction of the train 100, exceeds the normal range. It is determined that the state is present. Then, the determination unit 14 writes data indicating “abnormal” in the determination result column of the superconducting coil vibration table of the evaluation database 17 when the vibration amplitude value VUDRB12 that is the amplitude value of the vibration of the superconducting coil SCR is out of the normal range. .

On the other hand, when the vibration amplitude value VUDRB12 in the levitation guide coil is less than the vibration amplitude value threshold, the determination unit 14 has the vibration amplitude value VUDRB12 that is the amplitude value of the vibration of the superconducting coil SCR with respect to the traveling direction of the train 100 within the normal range. It is determined that the state is normal. Then, when the vibration amplitude value VUDRB12 which is the amplitude value of the vibration of the superconducting coil SCR is within the normal range, the determination unit 14 writes data indicating “normal” in the determination result column of the superconducting coil vibration table of the evaluation database 17. .
As described above, the determination result shows that the right side surface of the train 100 vibrates with respect to the traveling direction, and the levitation guide disposed on the left track, that is, the track 300L with respect to the traveling direction of the train 100. It can be determined whether the arrangement of the coil 201L is abnormal or whether abnormal vibration is occurring in the superconducting magnet SCL. The present embodiment is a method that focuses on detecting the torsional vibration of each superconducting coil, but does not exclude changes corresponding to other superconducting coil vibration modes and superconducting magnet vibration modes.

As described above, in the present embodiment, the magnetic field measurement is performed on the outer surfaces of the outer tubs 101R and 101L that are mounted on both the right side surface 100R and the left side surface 100L of the train 100 and store the superconducting coils SCR and SCL. Circuit sheets 1R and 1L are provided. For this reason, according to the present embodiment, the magnetic field between each of the superconducting coils SCR and SCL and the ground coil is non-contacted and nondestructively real-time by the magnetic field measuring circuits of the magnetic field measuring circuit sheets 1R and 1L. Can be detected. Therefore, according to the present embodiment, it is possible to easily measure the strength of magnetic field and the change in magnetic flux from the ground coil, which are given to the superconducting coil mounted on the train 100 by the ordinary train 100 operating normally. Is possible. For this reason, according to this embodiment, from the change of magnetic field strength and magnetic flux of the magnetic field between the superconducting coil mounted on the train 100 and the ground coil disposed on the track, the ground coil arrangement state (disconnection and interlayer) State including a short circuit). Further, according to the present embodiment, the lead-out portion short circuit as an abnormality of the propulsion coil can be detected in real time from the train 100 even if this short circuit is a high resistance short circuit. According to the present embodiment, by installing the ground coil position measurement system of the present embodiment for each vehicle constituting the train 100, by comparing the measurement results for the ground coil of each vehicle, It is possible to grasp the individuality of the movement behavior as an individual vehicle.
In order to measure the vibration of the superconducting coil, various vibration measurement sensors are generally incorporated. However, there is a problem such as heat entering the outer tank by the sensor, and a simple measurement method is required. . According to this embodiment, since the structure which provides a sensor specially is not required and the heat | fever approach with respect to an outer tank can be prevented, the abnormal vibration of a superconducting magnet can be detected easily.
As a result, according to the present embodiment, it is possible to reduce the cost of measuring the arrangement state of the ground coil as compared with the prior art, and to easily measure the position of the ground coil 200 and detect the fault in real time.

Moreover, according to this embodiment, since each of the magnetic field measurement circuit sheet 1L and the magnetic field measurement sheet 1R is provided on the outer surface of each of the outer tanks 101L and 101R, a simple protective film for protecting the outer tank surface is provided. In addition, when each of the superconducting coils SCR and SCL is inserted into the outer tubs 101L and 101R, when a stepping stone or the like collides with the outer tub of the superconducting coil while the train 100 is running, the damage caused by this collision The outer tank can be protected from.
In addition, each of the magnetic field measurement circuit sheet 1L and the magnetic field measurement sheet 1R in the present embodiment needs to be formed as thin and light as possible in order to reduce weight and ensure a mechanical gap (gap of a magnetic field generated from a ground coil). For example, a circuit element (search coil or the like) of an induced voltage measurement circuit and wiring may be printed (printed) on a sheet-like thin insulator surface. In addition, each of the magnetic field measurement circuit sheet 1L and the magnetic field measurement sheet 1R may be attached to the outer tank at all times, or may be configured to be removable from the outer tank at any time.

Moreover, in this embodiment, the ground coil specific | specification part 12 refers to the propulsion coil which is a ground coil in the table database 15, and a levitation guide table by the positional information from the GPS circuit corresponding to a magnetic field measurement circuit, and a magnetic field measurement circuit It has been described that the ground coil number of each ground coil corresponding to the position is extracted to identify the ground coil from which the magnetic field is detected.
However, the ground coil may be identified by counting the number of pulses generated by the magnetic field detected by each of the magnetic field measurement circuits and indicating the number of coils passed as the coil count number.

  That is, the ground coil specifying unit 12 counts pulses (measurement voltages) from the magnetic field measurement circuits UCL1 to UCL15, and obtains coil count numbers corresponding to the magnetic field measurement circuits UCL1 to UCL15. In the case of this configuration, the ground coil position table (propulsion coil position table and levitation guide coil position table) shown in FIG.

  FIG. 17 shows the position information of each ground coil 200 arranged in the orbit (300L, 300R) stored in the table database 15 and the ground coil number (levitation guide coil) for identifying the ground coil in the position information. It is a figure which shows the structure of the ground coil position table to which the number and the propulsion coil number correspond. FIG. 17A shows the configuration of the propulsion coil position table showing the correspondence between the coil counts of the propulsion coils 202R and 202L in the ground coil 200 and the propulsion coil numbers for identifying the propulsion coils 202R and 202L in the coil counts. Is shown. Here, m is a number indicating the total number of propulsion coils 202R and 202L arranged on a track between stations, for example, through which the train 100 passes. The propulsion coil numbers are assigned in the order of arrangement of the propulsion coils 202R and 202L, for example, from an upstream departure station to the next station between stations.

  On the other hand, FIG. 17B shows the levitation that indicates the correspondence between the coil count number of the levitation guide coils 201R and 201L in the ground coil 200 and the levitation guide coil number that identifies the levitation guide coils 201R and 201L in the coil count number. The structure of the guide coil position table is shown. Here, q is a number indicating the total number of levitation guide coils 201R and 201L arranged on a track for each station through which the train 100 passes, for example. The propulsion coil numbers are assigned in the order in which the levitation guide coils 201R and 201L are arranged, for example, from an upstream departure station between stations to the next station.

  Returning to FIG. 6, each time a pulse is obtained from each of the magnetic field measurement circuits in the magnetic field measurement circuit sheet 1 </ b> R, the ground coil specifying unit 12 increments a counter provided corresponding to each of the internal magnetic field measurement circuits (“ 1 ”). In the ground coil specifying unit 12, the magnetic field detected by the coil count indicated by the counter corresponding to each of the magnetic field measurement circuits in the magnetic field measurement circuit sheet 1R is caused by any of the floating guide coil 201R and the propulsion coil 202R. Judgment is made.

  That is, the ground coil specifying unit 12 refers to the levitation guide coil position table in the table database 15 based on the coil count number of the counter corresponding to the magnetic field measurement circuit, and the levitation guide of the levitation guide coil 201R corresponding to the position of the magnetic field measurement circuit. The coil number is extracted, and the levitation guide coil 201R detecting the magnetic field is specified. Similarly, the ground coil specifying unit 12 refers to the propulsion coil position table in the table database 15 based on the coil count number of the counter corresponding to the magnetic field measurement circuit, and the propulsion coil number of the propulsion coil 202R corresponding to the position of the magnetic field measurement circuit. And the propulsion coil 202R detecting the magnetic field is identified.

  On the other hand, the ground coil specifying unit 12 uses the coil count number of the counter provided corresponding to each of the magnetic field measurement circuits in the magnetic field measurement circuit sheet 1L, as in the case of the magnetic field measurement circuit sheet 1R. The position of the magnetic field measurement circuit in is detected from the position information. And the ground coil specific | specification part 12 determines whether the magnetic field which each of the magnetic field measurement circuit in the magnetic field measurement circuit sheet | seat 1L has detected is by which floating guide coil 201L and the propulsion coil 202L.

  That is, the ground coil specifying unit 12 refers to the levitation guide coil position table in the table database 15 based on the coil count number of the counter corresponding to the magnetic field measurement circuit, and the levitation guide of the levitation guide coil 201L corresponding to the position of the magnetic field measurement circuit. The coil number is extracted, and the levitation guide coil 201L that detects the magnetic field is specified. Similarly, the ground coil specifying unit 12 refers to the propulsion coil position table in the table database 15 based on the coil count number of the counter corresponding to the magnetic field measurement circuit, and the propulsion coil number of the propulsion coil 202L corresponding to the position of the magnetic field measurement circuit. And the propulsion coil 202L detecting the magnetic field is specified.

Moreover, in this embodiment, although the detection process of each arrangement | positioning state of a levitation guide coil and a propulsion coil is performed when the train 100 drive | works a track | orbit, driving | running | working of each arrangement state is performed in a different driving | running | working.
For example, when detecting the arrangement state of the levitation guide coil, when measuring the magnetic field of the levitation guide coil 201L and the superconducting coil SCR in the track 300L, the driving of the propulsion coil 202L is stopped at the measurement timing, and the magnetic field of the propulsion coil 202L is Exclude the effect. At this measurement timing, the driving of the propulsion coil is stopped in a minute time range that does not affect the travel of the train 100.

  Further, a program for realizing the functions of the ground coil position measurement system 10 in FIG. 6 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed. You may manage the ground coil arrange | positioned on the track of a magnetic levitation railway. Here, the “computer system” includes an OS and hardware such as peripheral devices.

Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design and the like within a scope not departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1L, 1R ... Magnetic field measurement circuit sheet 10 ... Ground coil position measurement system 11 ... Control part 12 ... Ground coil specific part 13 ... Calculation part 14 ... Determination part 15 ... Table database 16 ... Measurement value database 17 ... Evaluation database 100 ... Train 100L ... Left side 100R ... Right side 101L, 101R ... Outer tank 200L, 200R ... Ground coil 201L, 201R ... Left guide coil 202L, 202R ... Propulsion coil 300L, 300R ... Orbit DCL1, DCL2, DCL3, DCL4, DCL5, DCL6, DCL7 , DCL8, DCL9, DCL10, DCL11, DCL12, DCL13, DCL14, DCL15, UCL1, UCL2, UCL3, UCL4, UCL5, UCL6, UCL7, UCL8, UCL9, UCL10, UCL11, CL12, UCL13, UCL14, UCL15 ... magnetic field measurement circuit SCL, SCR, SCL1, SCL2, SCL3, SCL4 ... superconducting coil

Claims (7)

Ground coil of magnetic levitation railway that is normally run while evaluating the position of ground coil that is arranged along the track of magnetic levitation railway and gives magnetic field necessary for traveling to superconducting coil of ordinary train A position measurement system,
From the loop coil that measures the change in magnetic flux and magnetic field strength between the superconducting coil and the ground coil, which is attached to the outer surface of the outer tub in which the superconducting coil is stored in each of the left and right sides of the train vehicle. A magnetic field measurement circuit sheet in which the induced voltage measurement circuit is arranged in two upper and lower stages;
A calculation unit that calculates an evaluation value of the arrangement position of the ground coil based on a measurement value of each of the induced voltage measurement circuits of the upper and lower two stages by a predetermined calculation;
The magnetic field measuring circuit sheet, the same configuration as the left and right sides of the vehicle, given to the superconducting coil to propel the train in normal operation, interlinked the greater conductivity coils from the ground coils The magnetic levitation railway is characterized in that it measures the strength of the magnetic field and the change in the magnetic flux based on the magnetic flux to be generated, and is provided so that the loop coil is included in the superconducting coil in plan view. Coil position measurement system. 2. The magnetism according to claim 1, further comprising a ground coil specifying unit that determines a ground coil number indicating the ground coil to which the superconducting coil is opposed, wherein the magnetic field measurement circuit sheet measures a magnetic field. Ground coil position measurement system for levitated railways. The ground coil position measurement system for a magnetic levitation railway according to claim 1 or 2, wherein each of the upper and lower stages of the induced voltage measurement circuit is formed by arranging a plurality of loop coils. . The arithmetic unit averages the induced voltages of the plurality of loop coils for each of the two induced voltage measuring circuits in the upper and lower stages, and measures the intensity of the magnetic field and the change in the magnetic flux by each average value. The ground coil position measuring system for a magnetically levitated railway according to any one of claims 1 to 3. The computing unit is
Deviation in the vertical direction of the ground coil arranged in the track, deviation in the vertical direction between the ground coils arranged facing the left and right in the track, deviation in the distance between the rails of the superconducting coil and the left and right ground coils. The ground coil position measurement system for a magnetically levitated railway according to any one of claims 1 to 4, wherein the evaluation value including at least: is calculated. The ground coil position measurement system for a magnetically levitated railway according to any one of claims 1 to 5, wherein the magnetic field measurement circuit sheet is detachably attached to the outer tub. The ground coil position of a magnetic levitation railway that is normally evaluated while evaluating the placement position of a ground coil that is arranged along the track of a magnetic levitation railway and gives a magnetic field necessary for traveling to a superconducting coil of a general train Measuring method,
On the magnetic field measurement circuit sheet attached to the outer surface of the outer tub in which the superconducting coil is stored on each of the left and right sides of the train vehicle, the upper and lower two-stage induced voltage measuring circuits composed of loop coils are connected to the superconducting coil. A ground coil position measuring process for measuring a change in magnetic flux between the ground coil and a magnetic field strength;
A calculation unit comprising: a calculation process for calculating an evaluation value of the arrangement position of the ground coil by a predetermined calculation based on the measurement values of the induced voltage measurement circuits of the upper and lower two stages;
The magnetic field measuring circuit sheet, the same configuration as the left and right sides of the vehicle, given to the superconducting coil to propel the train in normal operation, interlinked the greater conductivity coils from the ground coils The magnetic levitation railway is characterized in that it measures the strength of the magnetic field and the change in the magnetic flux based on the magnetic flux to be generated, and is provided so that the loop coil is included in the superconducting coil in plan view. Coil position measurement method.

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