JP2009100506A - On-board device of automatic train stop system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an on-board device of an automatic train stop system, capable of ensuring the safety by monitoring the soundness in acquiring signal aspect information from a ground set while detecting the connection between an on-board set and a ground set by detecting the variation in impedance of the on-board device which changes based on connection with the ground device without influencing usual operation activities. <P>SOLUTION: The on-board device of the automatic train stop system detects the change in impedance of the on-board set when a resonant coil of the ground set is electromagnetically coupled to an oscillation coil of the on-board set to acquire the signal aspect information from the ground set. This on-board device includes an activity monitoring section for monitoring the soundness of an activity of acquiring the signal aspect information by changing the impedance of the on-board set. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an on-vehicle device for an automatic train stop device, and in an automatic train stop device that detects a change in impedance of an on-vehicle child that changes due to coupling with a ground child, the soundness of the device is reliably monitored. The present invention relates to an on-vehicle device for an automatic train stop device that can be implemented and can improve safety.

  Conventionally, an automatic train stop device is configured with a feedback oscillation circuit between the vehicle upper piece and the automatic train stop device in order to detect a change in the impedance of the vehicle upper piece that changes due to the coupling with the ground piece. Always oscillates at a predetermined frequency, and when coupled, oscillates at a frequency determined by the resonance frequency after impedance change. That is, conventionally, an automatic train stop device has a configuration including an oscillating unit composed of an oscillating unit that constantly oscillates at a resonance frequency lower than a predetermined frequency and outputs a constant oscillation frequency signal. If the oscillation frequency is different from the above-described constant oscillation frequency, the oscillation circuit on the vehicle utilizes a variable frequency phenomenon in which the oscillation frequency is temporarily drawn into the ground element when passing (see, for example, Patent Document 1). .

JP-A-10-304516, [0014] to [0015], FIG.

  However, according to the above-described conventional technology, since it is composed of a single system amplifier, output circuit, vehicle armature, and input circuit, the oscillation is always fixed due to a failure or the like, and the impedance of the oscillation circuit changes to change the frequency. When it becomes difficult to do so, there is a problem that it is impossible to detect a ground element to be changed. Since the ground element to be changed shows warning, caution, stop, etc. signals, if they cannot be detected, the signal will be advanced, that is, in violation of the signal instruction at a place where it should never enter. There is a risk that the train will step on.

  The present invention has been made in view of the above, and detects the impedance change of the vehicle upper body that changes due to the coupling with the ground element without affecting the normal operation of the train. To obtain an on-board device for an automatic train stop device capable of ensuring the safety by monitoring the soundness of signal display information acquisition operation for detecting signal connection information from the ground unit by detecting the connection of the ground unit With the goal.

  In order to solve the above-described problems and achieve the object, an on-vehicle device for an automatic train stop device according to the present invention includes an on-vehicle device when a ground coil resonance coil is electromagnetically coupled to an oscillation coil of the on-vehicle device. This is an on-board device for an automatic train stop device that detects a change in the impedance of the vehicle and obtains signal display information from the ground element. By changing the impedance of the vehicle element, the operation for acquiring the signal display information is performed. It is characterized by comprising an operation monitoring unit for monitoring the soundness of the device.

  According to the present invention, an on-vehicle device for an automatic train stop device that detects a change in impedance when a ground coil resonance coil is electromagnetically coupled to an oscillation coil of a vehicle top element and acquires signal display information from the ground element. By providing an operation monitoring unit that monitors the soundness of the signal display information acquisition operation, the signal display information acquisition operation and the automatic train stop device can be automatically and reliably performed without affecting the normal operation. There is an effect that the soundness of the on-vehicle device can be monitored to ensure safety.

  DESCRIPTION OF EMBODIMENTS Embodiments of an on-vehicle device for an automatic train stop device according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited to the following description, In the range which does not deviate from the summary of this invention, it can change suitably.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating a schematic configuration of an on-vehicle device of an automatic train stop device according to a first embodiment of the present invention. The on-vehicle device of the automatic train stop device according to the present embodiment detects a change in impedance when the ground coil resonance coil is electromagnetically coupled to the oscillation coil of the vehicle arm, and displays the signal display information from the ground child. The on-vehicle device 100 for an automatic train stop device to be acquired includes an operation monitoring unit that monitors the acquisition operation of signal display information and the soundness of the on-vehicle device of the automatic train stop device.

  As shown in FIG. 1, the on-vehicle device 100 of the automatic train stop device according to the present embodiment is an oscillation that constantly oscillates at a resonance frequency lower than a predetermined frequency using the vehicle upper 2 and the vehicle upper 2 as a feedback circuit. And a feedback oscillation circuit configured to include the unit 1. The oscillating unit 1 and the vehicle upper part 2 are connected so as to be able to communicate information by wire or wirelessly. The oscillation unit 1 includes an input unit 11, an amplification unit 12, an output unit 13, an impedance change unit 15, a signal determination unit 14, and an impedance change detection unit 16. The on-vehicle device of the automatic train stop device is configured by applying a fail-safe element that can identify a failure mode.

  The operation monitoring unit includes an input unit 11, an amplification unit 12, an output unit 13, an impedance change unit 15, a signal determination unit 14, an impedance change detection unit 16, and the vehicle upper element 2.

  The output of the amplifying unit 12 is adjusted to an appropriate voltage value in the output unit 13 and fed back to the input unit 11 via the impedance changing unit 15 and the vehicle upper element 2. The impedance changing unit 15 is disposed on the feedback oscillation circuit and changes the impedance of the feedback oscillation circuit. At the same time, the output of the amplification unit 12 is input to the signal discrimination unit 14 and the impedance change detection unit 16.

  Next, the operation will be described. First, when the apparatus power of the on-vehicle apparatus is turned on, the feedback oscillation circuit oscillates under a comprehensive oscillation condition determined by the phase characteristics of the amplifying unit 12, the output unit 13, the on-vehicle unit 2 and the input unit 11. . Oscillation when the vehicle upper element 2 is not electromagnetically coupled to the ground element 200 is called constant oscillation, and oscillates at a specific frequency. When the vehicle upper 2 passes over the ground element 200, the vehicle upper element 2 and the ground element 200 are electromagnetically coupled. At this time, the impedance of the vehicle upper element 2 changes apparently, and the feedback type oscillation circuit Changes to the resonance frequency (frequency change frequency) determined by the overall phase characteristics. This is defined as a variable phenomenon.

  The resonance frequency (frequency change frequency) that changes when passing through the ground unit 200 is determined by the signal discriminating unit 14, and the impedance of the ground unit 200 is set to a different type for each signal display. The signal type to be determined can be determined and acquired. For example, when a resonance frequency (frequency change frequency) of 100 kHz is detected in the signal determination unit 14, it is determined as the first signal type (for example, a blue signal), and the signal type displayed by the ground unit 200 is acquired. Can do.

  When the signal type indicated by the ground unit 200 is acquired, the signal determination unit 14 outputs predetermined brake information to a higher-level brake device or the like. The detection of the impedance change in the signal discriminating unit 14 can be performed by discriminating a filter output, discriminating a frequency characteristic by Fourier transform or the like, for example, that the resonance frequency has changed.

  For example, when a resonance frequency (frequency change frequency) of 112 kHz is detected in the signal determination unit 14, it is determined as the first signal type (for example, a yellow signal), and the signal type displayed by the ground unit 200 is determined. Can be acquired. For example, when a resonance frequency (frequency change frequency) of 124 kHz is detected in the signal determination unit 14, it is determined as the first signal type (for example, a red signal), and the signal type displayed by the ground unit 200 is determined. Can be acquired.

  However, if the oscillation is always fixed due to a failure or the impedance of the feedback oscillation circuit changes and it becomes difficult to change the frequency, there is a risk that the ground element 200 to be changed cannot be detected.

  Therefore, in the present embodiment, the impedance changing unit 15 is provided, the impedance of the feedback oscillation circuit is intentionally changed periodically, and the state in which the ground unit 200 and the vehicle unit 2 are apparently combined is intentionally set. To generate. Then, in parallel with the signal discriminating unit 14, the impedance change detecting unit 16 constantly detects the impedance change of the resonance frequency, and the impedance changing unit 15 changes the impedance of the feedback oscillation circuit for a predetermined time. Always monitor for periodic occurrences.

  If a preset impedance change is periodically detected, the impedance change detection unit 16 determines that the signal display information acquisition operation and the on-board device of the automatic train stop device are healthy. On the other hand, if the preset impedance change is not periodically detected, the impedance change detection unit 16 indicates that the signal display information acquisition operation and the on-board device of the automatic train stop device are not healthy and a failure has occurred. It is judged that it is. In this case, the impedance change detection unit 16 generates failure information and outputs it to the upper brake device or the like.

  Changing the impedance of the feedback oscillation circuit in the impedance changing unit 15 is temporarily performed so as not to disturb the impedance change due to the original ground coupling. That is, the impedance changing unit 15 changes the impedance of the feedback oscillation circuit so that the impedance is changed only for a sufficiently short period of time less than the non-operation time during which the signal determining unit 14 does not operate. It should be noted that the impedance can be continuously changed within a sufficiently short time shorter than the inactive time.

  In the signal discriminating unit 14, the frequency change less than the inactive time is regarded as noise, so that the signal display is not erroneously detected. Further, the minimum value of the operation time of the signal discriminating unit 14 is obtained by subtracting the impedance change time from the minimum frequency change time when passing through the minimum separation where the vehicle upper element 2 and the ground element 200 are coupled at a predetermined maximum speed. Therefore, the impedance change of the feedback oscillation circuit for a very short time does not affect the original frequency change operation.

  As described above, in the on-vehicle device 100 of the automatic train stop device according to the present embodiment, the feedback oscillation is performed in parallel with the original frequency change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled. The impedance of the circuit is periodically changed for a short time less than the signal discrimination time to detect whether or not a predetermined speed change operation is performed in the vehicle upper element. As a result, in parallel with normal ground detection, the entire on-vehicle device of the automatic train stop device (signal display information) can be used without affecting normal operation operations whether the train is running or stopped. There is an effect that the soundness of the acquisition operation) can always be diagnosed.

  In other words, by providing an impedance variable means in the on-board device of the automatic train stop device and changing the impedance for a short time less than the signal discrimination time periodically or continuously, the circuit response is confirmed, so that the There is an effect that it is possible to detect a failure quickly and reliably without potentially continuing the state in which the device is unable to detect a normal ground element. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

Embodiment 2. FIG.
In the first embodiment, the fail-safe element that can identify the failure mode is applied to the apparatus and the fail-safe property can be ensured by a single system, and the impedance of the feedback oscillation circuit is changed periodically and temporarily in the resonance frequency. Although the soundness of the apparatus can be secured by checking the circuit response, in the second embodiment, the circuit response when the resonance frequency of the feedback oscillation circuit is changed periodically and temporarily is 2 A case where confirmation is performed by collation between heavy systems will be described.

  FIG. 2: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 2 of this invention. As shown in FIG. 2, the on-vehicle device 100 of the automatic train stop device according to the present embodiment is an oscillation that constantly oscillates at a resonance frequency lower than a predetermined frequency using the vehicle upper 2 and the vehicle upper 2 as a feedback circuit. And a feedback oscillation circuit configured to include the unit 1. The oscillating unit 1 and the vehicle upper part 2 are connected so as to be able to communicate information by wire or wirelessly. The oscillating unit 1 includes an input unit 11a, an amplifying unit 12a, a signal discriminating unit 14a, and an impedance change detecting unit 16a, a redundant circuit unit A, an input unit 11b, an amplifying unit 12b, a signal discriminating unit 14b, and an impedance change detecting unit. The redundant circuit part B comprised by the part 16b, the output part 13, and the impedance change part 15 are provided.

  The basic configuration and operation are the same as those in the first embodiment except that the redundant circuit portion is configured, and the same components as those in the first embodiment are denoted by the same reference numerals. Detailed description will be omitted, and different points will be described. In the present embodiment, the on-board device of the automatic train stop device is configured using a digital device.

  The operation monitoring unit includes an input unit 11a, an amplification unit 12a, an impedance change detection unit 16a in the redundant circuit unit A, an input unit 11b, an amplification unit 12b, an impedance change detection unit 16b, and an output unit 13 in the redundant circuit unit B. The impedance changing unit 15 and the vehicle upper 2 are configured.

  The output of the amplifying unit 12a is adjusted to an appropriate voltage value in the output unit 13, and is fed back to the input unit 11a and the input unit 11b via the impedance changing unit 15 and the vehicle upper element 2. The output of the input unit 11a is input to the amplification unit 12a, and the output of the input unit 11b is input to the amplification unit 12b. The output of the amplifying unit 12a is input to the signal determining unit 14a and the impedance change detecting unit 16a. The output of the amplification unit 12b is input to the signal determination unit 14b and the impedance change detection unit 16b.

  In the on-vehicle device of this automatic train stop device, the discrimination result of the signal display information is collated between the signal discriminating unit 14a of the redundant circuit unit A and the signal discriminating unit 14b of the redundant circuit unit B. Confirm by checking. Moreover, in the on-vehicle device of this automatic train stop device, the impedance change detection unit 16a of the redundant circuit unit A and the impedance change detection unit 16b of the redundant circuit unit B are collated to collate the detection results of the impedance change. Confirm by verification between systems.

  As described above, in the on-vehicle device 100 of the automatic train stop device according to the present embodiment, the feedback oscillation is performed in parallel with the original frequency change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled. The impedance of the circuit is periodically changed for a short time less than the signal discrimination time to detect whether or not a predetermined speed change operation is performed in the vehicle upper element. As a result, in parallel with normal ground detection, the signal display information of the on-board device of the automatic train stop device can be acquired without affecting the normal operation, whether the train is running or stopped. There is an effect that the soundness of the operation can always be diagnosed.

  In other words, by providing an impedance variable means in the on-board device of the automatic train stop device and changing the impedance for a short time less than the signal discrimination time periodically or continuously, the circuit response is confirmed, so that the There is an effect that it is possible to detect a failure quickly and reliably without potentially continuing the state in which the device is unable to detect a normal ground element. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

  In addition, when a digital element whose failure mode cannot be specified is applied to the apparatus, it is not possible to ensure fail-safeness by itself, so that double system verification is necessary. In the on-vehicle device of the automatic train stop device according to the present embodiment, even in a circuit configuration in which a digital device whose failure mode cannot be specified is applied and a fail-safe property is ensured in a double system, the device is surely sound. There is an effect that the sex can be secured.

Embodiment 3 FIG.
In the first embodiment, in the configuration in which the amplifying unit, the output unit, the vehicle upper unit, and the input unit form a feedback oscillation circuit, and the ground unit is detected by changing the resonance frequency by coupling the ground unit and the vehicle upper unit. The soundness of the device can be secured by periodically changing the impedance of the feedback oscillation circuit periodically and temporarily to confirm the circuit response. A case where the circuit response is confirmed by periodically and temporarily changing the resonance frequency will be described.

  FIG. 3: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 3 of this invention. As shown in FIG. 3, the on-vehicle device 100 of the automatic train stop device according to the present embodiment has an on-board element 2 and an oscillation that constantly oscillates at a resonance frequency lower than a predetermined frequency using the on-board element 2 as a feedback circuit. And a feedback oscillation circuit configured to include the unit 1. The oscillating unit 1 and the vehicle upper part 2 are connected so as to be able to communicate information by wire or wirelessly.

  The oscillating unit 1 includes an input unit 11, an amplifying unit 12, an output unit 13, an impedance change control unit 31 that generates impedance change control information for controlling a change in the impedance of the vehicle upper 2, and a signal determination unit 14. And an impedance change detection unit 16. The vehicle upper 2 includes an impedance element 32 that can change the impedance of the vehicle upper 2 according to the impedance change control information. The on-vehicle device of the automatic train stop device is configured by applying a fail-safe element that can identify a failure mode.

  The basic configuration and operation are the same as those in the first embodiment except that the impedance changing control unit 31 and the impedance element 32 are provided instead of the impedance changing unit 15, and the same as in the first embodiment. The same reference numerals are given to the components, and detailed description is omitted, and different points will be described.

  The operation monitoring unit includes the input unit 11, the amplification unit 12, the output unit 13, the impedance change control unit 31, the impedance change detection unit 16, and the vehicle upper unit 2 including the impedance element 32. The

  The output of the amplifying unit 12 is adjusted to an appropriate voltage value in the output unit 13 and is fed back to the input unit 11 via the vehicle upper element 2. At the same time, the output of the amplification unit 12 is input to the signal discrimination unit 14 and the impedance change detection unit 16. The impedance change control unit 31 is arranged in connection with the impedance element 32 of the vehicle upper element 2.

  In the present embodiment, the impedance change control unit 31 and the impedance element 32 are provided, the impedance of the vehicle upper arm is periodically changed intentionally, and the ground element 200 and the vehicle upper element 2 are apparently coupled. Generate intentionally. Then, in parallel with the signal discriminating unit 14, the impedance change detecting unit 16 constantly detects the impedance change of the resonance frequency, and the predetermined change caused by the impedance change control unit 31 and the impedance element 32 changing the impedance of the vehicle upper element. It is constantly monitored whether the time impedance change occurs periodically.

  As in the case of the first embodiment, if a preset impedance change is periodically detected, the impedance change detection unit 16 can obtain the signal display information acquisition operation and the on-board device of the automatic train stop device. Judge that it is healthy. On the other hand, if the preset impedance change is not periodically detected, the impedance change detection unit 16 indicates that the signal display information acquisition operation and the on-board device of the automatic train stop device are not healthy and a failure has occurred. It is judged that it is. In this case, the impedance change detection unit 16 generates failure information and outputs it to the upper brake device or the like.

  Also in the present embodiment, the change of the impedance of the vehicle upper arm is temporarily performed so as not to disturb the impedance change due to the original ground child coupling. In other words, the impedance of the vehicle upper member 2 is changed only for a sufficiently short time that is less than the inactive time during which the signal determination unit 14 does not operate. It should be noted that the impedance can be continuously changed within a sufficiently short time shorter than the inactive time.

  As described above, in the on-vehicle device 100 of the automatic train stop device according to the present embodiment, the vehicle upper element is parallel to the original speed change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled. Is periodically changed for a short period of time less than the signal discrimination time to detect whether or not a predetermined speed change operation is performed in the vehicle upper element. As a result, in parallel with normal ground detection, the signal display information of the on-board device of the automatic train stop device can be acquired without affecting the normal operation, whether the train is running or stopped. There is an effect that the soundness of the operation can always be diagnosed.

  In other words, the onboard device of the automatic train stop device is provided with an impedance variable means for the vehicle upper 2, and the circuit response is obtained by periodically or continuously changing the impedance of the vehicle upper 2 for a short time less than the signal discrimination time. By confirming, there is an effect that failure detection can be performed quickly and reliably without potentially continuing the state in which the on-vehicle device cannot detect a normal ground element due to a failure or the like. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

Embodiment 4 FIG.
In the third embodiment, in a configuration in which a fail-safe element that can identify a failure mode is applied to the apparatus and the fail-safe property can be ensured by a single system, the impedance of the vehicle upper arm is periodically and temporarily changed to change the resonance frequency. Although the soundness of the apparatus can be secured by checking the response, in the fourth embodiment, the circuit response when the resonance frequency is changed periodically and temporarily in the impedance of the vehicle upper arm is doubled. A case will be described in which confirmation is performed by collation between systems.

  FIG. 4: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 4 of this invention. As shown in FIG. 4, the on-vehicle device 100 of the automatic train stop device according to the present embodiment has an on-board element 2 and an oscillation that constantly oscillates at a resonance frequency lower than a predetermined frequency using the on-board element 2 as a feedback circuit. And a feedback oscillation circuit configured to include the unit 1. The oscillating unit 1 and the vehicle upper part 2 are connected so as to be able to communicate information by wire or wirelessly.

  The oscillating unit 1 includes a redundant circuit unit C including an input unit 11a, an amplifying unit 12a, a signal discriminating unit 14a, and an impedance change detecting unit 16a, an input unit 11b, an amplifying unit 12b, a signal discriminating unit 14b, and an impedance change detecting unit. The redundant circuit part D comprised by the part 16b, the output part 13, and the impedance change control part 31 are provided. Further, the vehicle upper element 2 includes an impedance element 32.

  The basic configuration and operation are the same as those in the third embodiment except that the redundant circuit section is configured, and the same components as those in the third embodiment are denoted by the same reference numerals. Detailed description will be omitted, and different points will be described. In the present embodiment, the on-board device of the automatic train stop device is configured using a digital device.

  The operation monitoring unit includes an input unit 11a, an amplification unit 12a, an impedance change detection unit 16a in the redundant circuit unit C, an input unit 11b, an amplification unit 12b, an impedance change detection unit 16b, and an output unit 13 in the redundant circuit unit D. The impedance change control unit 31 and the vehicle upper 2 including the impedance element 32 are configured.

  The output of the amplifying unit 12a is adjusted to an appropriate voltage value at the output unit 13, and is fed back to the input unit 11a and the input unit 11b via the vehicle upper element 2. The output of the input unit 11a is input to the amplification unit 12a, and the output of the input unit 11b is input to the amplification unit 12b. The output of the amplifying unit 12a is input to the signal determining unit 14a and the impedance change detecting unit 16a. The output of the amplification unit 12b is input to the signal determination unit 14b and the impedance change detection unit 16b.

  In the on-vehicle device of this automatic train stop device, the discrimination result of the signal display information is collated between the signal discriminating unit 14a of the redundant circuit unit C and the signal discriminating unit 14b of the redundant circuit unit D. Confirm by checking. Further, in the on-vehicle device of this automatic train stop device, the impedance change detection unit 16a of the redundant circuit unit C and the impedance change detection unit 16b of the redundant circuit unit D are collated and the detection result of the impedance change is doubled. Confirm by verification between systems.

  As described above, in the on-vehicle device 100 of the automatic train stop device according to the present embodiment, the vehicle upper element is parallel to the original speed change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled. Is periodically changed for a short period of time less than the signal discrimination time to detect whether or not a predetermined speed change operation is performed in the vehicle upper element. As a result, in parallel with normal ground detection, the entire on-vehicle device of the automatic train stop device (signal display information) can be used without affecting normal operation operations whether the train is running or stopped. There is an effect that the soundness of the acquisition operation) can always be diagnosed.

  In other words, the onboard device of the automatic train stop device is provided with an impedance variable means for the vehicle upper 2, and the circuit response is obtained by periodically or continuously changing the impedance of the vehicle upper 2 for a short time less than the signal discrimination time. By confirming, there is an effect that failure detection can be performed quickly and reliably without potentially continuing the state in which the on-vehicle device cannot detect a normal ground element due to a failure or the like. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

  In addition, when a digital element whose failure mode cannot be specified is applied to the apparatus, it is not possible to ensure fail-safeness by itself, so that double system verification is necessary. In the on-vehicle device of the automatic train stop device according to the present embodiment, even in a circuit configuration in which a digital device whose failure mode cannot be specified is applied and a fail-safe property is ensured in a double system, the device is surely sound. There is an effect that the sex can be secured.

Embodiment 5 FIG.
In the first embodiment, in the configuration in which the amplifying unit, the output unit, the vehicle upper unit, and the input unit form a feedback oscillation circuit, and the ground unit is detected by changing the resonance frequency by coupling the ground unit and the vehicle upper unit. The soundness of the apparatus can be ensured by periodically changing the impedance of the feedback oscillation circuit periodically and temporarily to confirm the circuit response. In the fifth embodiment, the test signal is used as the resonance signal. A case will be described in which a means capable of superimposing and outputting periodically is provided and the reception characteristics of the test signal, that is, the frequency and the signal level are monitored.

  FIG. 5: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 5 of this invention. As shown in FIG. 5, the on-vehicle device 100 of the automatic train stop device according to the present embodiment is an oscillation that constantly oscillates at a resonance frequency lower than a predetermined frequency using the vehicle upper 2 and the vehicle upper 2 as a feedback circuit. And a feedback oscillation circuit configured to include the unit 1. The oscillating unit 1 and the vehicle upper part 2 are connected so as to be able to communicate information by wire or wirelessly.

  The oscillation unit 1 includes an input unit 11, an amplification unit 12, an output unit 13, a test signal generation unit 41 that superimposes and outputs a test signal on a constantly oscillating resonance signal, a signal determination unit 14, and the vehicle upper 2. A test signal reception characteristic determination unit 42 that determines a frequency and a signal level as the reception characteristic of the test signal from the return signal. The on-vehicle device of the automatic train stop device is configured by applying a fail-safe element that can identify a failure mode.

  The basic configuration is the same as that of the first embodiment except that a test signal generation unit 41 and a test signal reception characteristic determination unit 42 are provided instead of the impedance changing unit 15. The same components as those in the case are denoted by the same reference numerals, detailed description thereof is omitted, and different points will be described.

  The operation monitoring unit includes an input unit 11, an amplification unit 12, an output unit 13, a test signal generation unit 41, a test signal reception characteristic determination unit 42, and the vehicle upper element 2.

  The output of the amplifying unit 12 is adjusted to an appropriate voltage value in the output unit 13 and is fed back to the input unit 11 via the vehicle upper element 2. At the same time, the output of the amplification unit 12 is input to the signal determination unit 14 and the test signal reception characteristic determination unit 42.

  In the present embodiment, a test signal generation unit 41 and a test signal reception characteristic determination unit 42 are provided, and a test signal is superimposed and output on a constantly oscillating resonance signal. Then, the frequency and signal level are always detected and judged as the reception characteristics of the test signal from the return signal from the vehicle upper element 2 to determine whether the reception characteristics are normally detected (whether the test signal has returned to normal). ) Is constantly monitored.

  If the reception characteristic of the test signal is normally detected from the return signal from the vehicle upper element 2, the test signal reception characteristic determination unit 42 determines that the feedback oscillation circuit of the on-vehicle device is healthy. On the other hand, if the reception characteristic of the test signal is not normally detected from the return signal from the vehicle upper element 2, the test signal reception characteristic determination unit 42 indicates that the feedback oscillation circuit of the on-vehicle device is not healthy and a failure occurs. It is judged that it is. In this case, the test signal reception characteristic determination unit 42 generates failure information and outputs the failure information to the upper brake device or the like.

  In the present embodiment, the frequency of the test signal may be a test signal having the same frequency as the resonance frequency, or may be a test signal having a frequency different from the resonance frequency. In the case of a test signal having a frequency different from the resonance frequency, the test signal may be continuously output. However, in the case of a test signal having the same frequency as the resonance frequency, continuous output cannot be performed.

  As described above, in the on-vehicle device 100 of the automatic train stop device according to the present embodiment, in parallel with the original variable speed operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled, A test signal is superimposed and output on the resonance signal to detect whether or not the test signal has returned to normal. As a result, in parallel with normal ground detection, whether the train is running or stopped, the normal oscillation operation is not affected and the feedback oscillation circuit of the on-board device of the automatic train stop device is sound. There is an effect that sex can always be diagnosed.

  That is, a test signal generator and a test signal reception characteristic determination unit are provided in the on-board device of the automatic train stop device, and the test signal is superimposed and output periodically and continuously on the resonance signal, and the return signal is received. By checking the characteristics, it is possible to detect a failure quickly and reliably without potentially continuing the state where the feedback oscillation circuit of the on-vehicle device cannot detect the normal ground element due to a failure or the like. , Has the effect. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

Embodiment 6 FIG.
In the fifth embodiment, a test signal having the same frequency (or a different frequency) as the resonance frequency is periodically applied to the resonance signal in a configuration in which a fail-safe element that can identify the failure mode is applied to the apparatus and the fail-safe property can be secured by a single system. In the sixth embodiment, it is possible to ensure the soundness of the feedback oscillation circuit of the on-vehicle apparatus by monitoring the reception characteristics of the test signal. A case where the characteristics, that is, the frequency and the signal level are confirmed by collation between the double systems will be described.

  FIG. 6: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 6 of this invention. As shown in FIG. 6, the on-vehicle device 100 of the automatic train stop device according to the present embodiment is an oscillation that constantly oscillates at a resonance frequency lower than a predetermined frequency using the vehicle upper 2 and the vehicle upper 2 as a feedback circuit. And a feedback oscillation circuit configured to include the unit 1. The oscillating unit 1 and the vehicle upper part 2 are connected so as to be able to communicate information by wire or wirelessly.

  The oscillating unit 1 includes a redundant circuit unit E including an input unit 11a, an amplifier unit 12a, a signal determination unit 14a, and a test signal reception characteristic determination unit 42a, an input unit 11b, an amplification unit 12b, a signal determination unit 14b, and a test. The redundant circuit part F comprised by the signal reception characteristic judgment part 42b, the output part 13, and the test signal generation part 41 are provided.

  The basic configuration is the same as that of the fifth embodiment except that the redundant circuit section is configured, and the same components as those of the fifth embodiment are denoted by the same reference numerals and detailed. The description will be omitted, and different points will be described. In the present embodiment, the on-board device of the automatic train stop device is configured using a digital device.

  The operation monitoring unit includes an input unit 11a, an amplification unit 12a, a test signal reception characteristic determination unit 42a in the redundant circuit unit E, an input unit 11b, an amplification unit 12b, a test signal reception characteristic determination unit 42b in the redundant circuit unit F, and an output. The unit 13 and the test signal generation unit 41 are configured.

  The output of the amplifying unit 12a is adjusted to an appropriate voltage value at the output unit 13, and is fed back to the input unit 11a and the input unit 11b via the vehicle upper element 2. In the present embodiment, the test signal generator 41 superimposes and outputs the test signal on the output of the amplifier 12a. The output of the input unit 11a is input to the amplification unit 12a, and the output of the input unit 11b is input to the amplification unit 12b. The output of the amplifying unit 12a is input to the signal determining unit 14a and the test signal reception characteristic determining unit 42a. The output of the amplification unit 12b is input to the signal determination unit 14b and the test signal reception characteristic determination unit 42b.

  In the on-vehicle device of this automatic train stop device, the discrimination result of the signal display information is collated between the signal discriminating unit 14a of the redundant circuit unit E and the signal discriminating unit 14b of the redundant circuit unit F. Confirm by checking. Further, in the on-vehicle device of this automatic train stop device, the determination results are collated between the test signal reception characteristic determination unit 42a of the redundant circuit unit E and the test signal reception characteristic determination unit 42b of the redundant circuit unit F. And confirm by verification between the double systems.

  Also in the present embodiment, the test signal frequency may be a test signal having the same frequency as the resonance frequency, or may be a test signal having a frequency different from the resonance frequency. In the case of a test signal having a frequency different from the resonance frequency, the test signal may be continuously output. However, in the case of a test signal having the same frequency as the resonance frequency, continuous output cannot be performed.

  As described above, in the on-vehicle device 100 of the automatic train stop device according to the present embodiment, in parallel with the original variable speed operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled, A test signal is superimposed and output on the resonance signal to detect whether or not the test signal has returned to normal. As a result, in parallel with normal ground detection, whether the train is running or stopped, the normal oscillation operation is not affected and the feedback oscillation circuit of the on-board device of the automatic train stop device is sound. There is an effect that sex can always be diagnosed.

  That is, a test signal generator and a test signal reception characteristic determination unit are provided in the on-board device of the automatic train stop device, and the test signal is superimposed and output periodically and continuously on the resonance signal, and the return signal is received. By checking the characteristics, it is possible to detect a failure quickly and reliably without potentially continuing the state where the feedback oscillation circuit of the on-vehicle device cannot detect the normal ground element due to a failure or the like. , Has the effect. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

  In addition, when a digital element whose failure mode cannot be specified is applied to the apparatus, it is not possible to ensure fail-safeness by itself, so that double system verification is necessary. In the on-vehicle device of the automatic train stop device according to the present embodiment, even in a circuit configuration in which a digital device whose failure mode cannot be specified is applied and a fail-safe property is ensured in a double system, the device is surely sound. There is an effect that the sex can be secured.

Embodiment 7 FIG.
In the first to sixth embodiments, the resonance frequency is changed by the coupling of the ground element and the vehicle upper element in the feedback oscillation circuit constituted by the amplification unit, the output unit, the vehicle upper element, and the input unit as the ground element detecting means. In the seventh embodiment, signal generating means for generating a plurality of signals according to the resonance frequency with each ground element, means for outputting a signal to the vehicle upper element, vehicle upper element are provided. The circuit impedance of the feedback type oscillation circuit has a signal discrimination means for confirming the response of the signal passed through, and detects the change in signal characteristics when the vehicle upper element impedance changes due to the combination of the ground element and the vehicle upper element. A case where the circuit response is confirmed by changing the resonance frequency periodically and temporarily will be described.

  FIG. 7: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 7 of this invention. The on-vehicle device of the automatic train stop device according to the present embodiment detects a change in impedance when the ground coil resonance coil is electromagnetically coupled to the oscillation coil of the vehicle arm, and displays the signal display information from the ground child. An on-vehicle device 300 for an automatic train stop device to be acquired, comprising an operation monitoring unit that monitors the acquisition operation of signal display information and the soundness of the on-vehicle device of the automatic train stop device.

  As shown in FIG. 7, the on-vehicle device 300 of the automatic train stop device according to the present embodiment generates a signal having a predetermined frequency with the vehicle upper 2 and inputs the signal to the vehicle upper 2. And a detection unit 301 that detects a change in impedance of the vehicle upper element 2 by detecting a reception state of a return signal from the child 2 and an impedance change detection circuit that includes the impedance change detection circuit.

  The detection unit 301 and the vehicle upper 2 are connected so as to be able to communicate information by wire or wirelessly. The detection unit 301 includes a signal generation unit 21 that generates signals having a plurality of preset frequencies according to the resonance frequency with the ground unit 200, an output unit 13, and an impedance change unit that changes the impedance of the impedance change detection circuit. 51, an input unit 11, a signal determination unit 22, and an impedance change detection unit 52 that detects a change in impedance of the impedance change detection circuit. The on-vehicle device of the automatic train stop device is configured by applying a fail-safe element that can identify a failure mode.

  The operation monitoring unit includes the signal generation unit 21, the output unit 13, the impedance change unit 51, the input unit 11, the impedance change detection unit 52, and the vehicle upper element 2.

  Next, the operation will be described. First, when the device power of the on-vehicle device is turned on, the signal generation unit 21 generates signals having a plurality of preset frequencies corresponding to the resonance frequency with the ground unit 200. The output of the signal generation unit 21 is adjusted to an appropriate voltage value at the output unit 13 and input to the input unit 11 via the impedance changing unit 51 and the vehicle upper element 2. The output signal from the vehicle upper 2 is adjusted to an appropriate voltage value at the input unit 11 and input to the signal determination unit 22. Then, the signal discriminating unit 22 discriminates a change in signal characteristics when the vehicle armature impedance changes due to the combination of the ground unit and the vehicle upper unit 2, and discriminates a different change for each signal display. The signal type displayed by the child 200 can be determined and acquired.

  However, if the impedance of the impedance change detection circuit changes or becomes difficult to change due to a failure or the like, there is a risk that a change in the signal characteristic when the impedance of the impedance change detection circuit changes cannot be detected.

  Therefore, in the present embodiment, the impedance change detection circuit is provided with the impedance changing unit 51, and the impedance of the impedance change detection circuit is intentionally changed periodically. Intentionally generate a combined state. In parallel with the signal discriminating unit 22, the change in the signal characteristic is constantly detected by the impedance change detecting unit 52, and the change in the signal characteristic caused by changing the impedance of the impedance change detecting circuit by the impedance changing unit 51 is periodic. Always monitor whether this occurs.

  If the change in the preset signal characteristics is periodically detected, the impedance change detection unit 52 determines that the signal display information acquisition operation and the on-board device of the automatic train stop device are healthy. . On the other hand, if the preset impedance change is not detected periodically, the impedance change detection unit 52 detects that the signal display information acquisition operation and the on-board device of the automatic train stop device are not healthy and have failed. It is judged that it is. In this case, the impedance change detection unit 52 generates failure information and outputs the failure information to the upper brake device or the like.

  The impedance change of the impedance change detection circuit in the impedance changing unit 51 is temporarily changed so as not to hinder the impedance change due to the original ground element coupling. That is, the impedance change of the impedance change detection circuit in the impedance change unit 51 is performed only for a sufficiently short time less than the non-operation time during which the signal determination unit 22 does not operate. It should be noted that the impedance can be continuously changed within a sufficiently short time shorter than the inactive time.

  In the signal discriminating unit 22, the frequency change less than the inactive time is regarded as noise, so that the signal display is not erroneously detected. In addition, the minimum value of the operation time of the signal discriminating unit 22 is obtained by subtracting the impedance change time from the minimum frequency change time when passing through the minimum separation where the vehicle upper element 2 and the ground element 200 are coupled at a predetermined maximum speed. Therefore, the impedance change of the impedance change detection circuit in an extremely short time does not affect the original frequency change operation.

  As described above, in the on-vehicle device 300 of the automatic train stop device according to the present embodiment, the impedance change detection is performed in parallel with the original frequency change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled. The impedance of the circuit is periodically changed for a short time less than the signal discrimination time to detect whether or not a predetermined speed change operation is performed in the vehicle upper element. As a result, in parallel with normal ground detection, the entire on-vehicle device of the automatic train stop device (signal display information) can be used without affecting normal operation operations whether the train is running or stopped. There is an effect that the soundness of the acquisition operation) can always be diagnosed.

  That is, the impedance change means of the impedance change detection circuit is provided in the on-board device of the automatic train stop device, and the impedance of the short time impedance change detection circuit that is less than the signal discrimination time is changed periodically or continuously to change the circuit response. By confirming, there is an effect that failure detection can be performed quickly and reliably without potentially continuing the state in which the on-vehicle device cannot detect a normal ground element due to a failure or the like. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

Embodiment 8 FIG.
In the seventh embodiment, in a configuration in which a fail-safe element that can identify a failure mode is applied to the apparatus and the fail-safe property can be ensured by a single system, the circuit impedance of the impedance change detection circuit is changed periodically and temporarily to generate a circuit response. In the eighth embodiment, the circuit response when the impedance of the impedance change detection circuit is changed periodically and temporarily is obtained between the two systems. A case where confirmation is performed by verification will be described.

  FIG. 8: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 8 of this invention. As shown in FIG. 8, the on-vehicle device 300 of the automatic train stop device according to the present embodiment generates a signal having a predetermined frequency with the vehicle upper 2 and inputs the signal to the vehicle upper 2. And a detection unit 301 that detects a change in impedance of the vehicle upper element 2 by detecting a reception state of a return signal from the child 2 and an impedance change detection circuit that includes the impedance change detection circuit. The detection unit 301 and the vehicle upper 2 are connected so as to be able to communicate information by wire or wirelessly.

  The detection unit 301 includes a signal generation unit 21, an output unit 13, an impedance change unit 51, a redundant circuit unit G including an input unit 11a, a signal determination unit 22a, and an impedance change detection unit 52a, and an input unit 11b. And a redundant circuit unit H including a signal determination unit 22b and an impedance change detection unit 52b.

  The basic configuration is the same as in the case of the seventh embodiment except that the redundant circuit unit is configured, and the same components as those in the seventh embodiment are denoted by the same reference numerals and detailed. The description will be omitted, and different points will be described. In the present embodiment, the on-board device of the automatic train stop device is configured using a digital device.

  The operation monitoring unit includes a signal generation unit 21, an output unit 13, an impedance change unit 51, an input unit 11a in the redundant circuit unit G, an impedance change detection unit 52a, an input unit 11b in the redundant circuit unit H, and an impedance change detection. It is comprised by the part 52b and the vehicle upper part 2. FIG.

  The output of the signal generation unit 21 is adjusted to an appropriate voltage value in the output unit 13 and input to the input unit 11a and the input unit 11b via the impedance changing unit 51 and the vehicle upper element 2. The output of the input unit 11a is input to the signal determination unit 22a and the impedance change detection unit 52a, and the output of the input unit 11b is input to the signal determination unit 22b and the impedance change detection unit 52b.

  In the on-vehicle device of this automatic train stop device, the discrimination result of the signal display information is collated between the signal discriminating unit 22a of the redundant circuit unit G and the signal discriminating unit 22b of the redundant circuit unit H. Confirm by checking. Further, in the on-vehicle device of this automatic train stop device, the impedance change detection unit 52a of the redundant circuit unit G and the impedance change detection unit 52b of the redundant circuit unit H are collated to collate the detection result. Confirm by verification between systems.

  As described above, in the on-vehicle device 300 of the automatic train stop device according to the present embodiment, the impedance change detection is performed in parallel with the original frequency change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled. The impedance of the circuit is periodically changed for a short time less than the signal discrimination time to detect whether or not a predetermined speed change operation is performed in the vehicle upper element. As a result, in parallel with normal ground detection, the entire on-vehicle device of the automatic train stop device (signal display information) can be used without affecting normal operation operations whether the train is running or stopped. There is an effect that the soundness of the acquisition operation) can always be diagnosed.

  That is, the impedance change means of the impedance change detection circuit is provided in the on-board device of the automatic train stop device, and the impedance of the short time impedance change detection circuit that is less than the signal discrimination time is changed periodically or continuously to change the circuit response. By confirming, there is an effect that failure detection can be performed quickly and reliably without potentially continuing the state in which the on-vehicle device cannot detect a normal ground element due to a failure or the like. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

  In addition, when a digital element whose failure mode cannot be specified is applied to the apparatus, it is not possible to ensure fail-safeness by itself, so that double system verification is necessary. In the on-vehicle device of the automatic train stop device according to the present embodiment, even in a circuit configuration in which a digital device whose failure mode cannot be specified is applied and a fail-safe property is ensured in a double system, the device is surely sound. There is an effect that the sex can be secured.

Embodiment 9 FIG.
In the seventh embodiment, there is a signal generation unit, an output unit, and a signal determination unit, and in the configuration for detecting a change in signal characteristics when the vehicle upper impedance changes due to the combination of the ground unit and the vehicle upper unit, impedance change The circuit response is confirmed by periodically and temporarily changing the circuit impedance of the detection circuit. However, in the ninth embodiment, the circuit response is changed by periodically and temporarily changing the impedance of the vehicle upper arm. The case where the soundness of the apparatus can be ensured by checking will be described.

  FIG. 9: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 9 of this invention. As shown in FIG. 9, the on-vehicle device 300 of the automatic train stop device according to the present embodiment generates a signal having a predetermined frequency with the vehicle upper 2 and inputs the signal to the vehicle upper 2. And a detection unit 301 that detects a change in impedance of the vehicle upper element 2 by detecting a reception state of a return signal from the child 2 and an impedance change detection circuit that includes the impedance change detection circuit. The detection unit 301 and the vehicle upper 2 are connected so as to be able to communicate information by wire or wirelessly.

  The detection unit 301 includes a signal generation unit 21, an output unit 13, an impedance change control unit 31, an input unit 11, an impedance change detection unit 16, and a signal determination unit 22. Further, the vehicle upper element 2 includes an impedance element 32. The on-vehicle device of the automatic train stop device is configured by applying a fail-safe element that can identify a failure mode.

  The basic configuration is the same as that of the seventh embodiment except that the impedance changing control unit 31 and the impedance element 32 are provided instead of the impedance changing unit 51, and the same configuration as that of the seventh embodiment. The same reference numerals are given to the elements, and detailed description is omitted, and different points will be described.

  The operation monitoring unit includes a signal generation unit 21, an output unit 13, an impedance change control unit 31, an input unit 11, an impedance change detection unit 16, and a vehicle upper element 2 including an impedance element 32. .

  The output of the signal generation unit 21 is adjusted to an appropriate voltage value at the output unit 13 and input to the input unit 11 via the vehicle upper element 2. The output of the input unit 11 is input to the signal determination unit 22 and the impedance change detection unit 16. The impedance change control unit 31 is arranged in connection with the impedance element 32 of the vehicle upper element 2.

  In the present embodiment, the impedance change control unit 31 and the impedance element 32 are provided, the impedance of the vehicle upper element is intentionally changed for a short time periodically, and the ground element 200 and the vehicle upper element 2 are apparently coupled. The intentional state is generated. In parallel with the signal discriminating unit 22, the change in the signal characteristic is constantly detected by the impedance change detecting unit 52, and the change in the signal characteristic caused by changing the impedance of the impedance change detecting circuit by the impedance changing unit 51 is periodic. Always monitor whether this occurs.

  As in the case of the seventh embodiment, if a change in preset signal characteristics is periodically detected, the impedance change detection unit 52 performs an operation for acquiring signal display information and for on-board of an automatic train stop device. Judge that the device is healthy. On the other hand, if the preset impedance change is not detected periodically, the impedance change detection unit 52 detects that the signal display information acquisition operation and the on-board device of the automatic train stop device are not healthy and have failed. It is judged that it is. In this case, the impedance change detection unit 52 generates failure information and outputs the failure information to the upper brake device or the like.

  The change of the impedance of the vehicle upper element 2 is temporarily performed so as not to disturb the impedance change due to the original ground element coupling. In other words, the impedance of the vehicle upper member 2 is changed only for a sufficiently short time that is less than the non-operation time during which the signal determination unit 22 does not operate. It should be noted that the impedance can be continuously changed within a sufficiently short time shorter than the inactive time.

  As described above, in the on-vehicle device 300 of the automatic train stop device according to the present embodiment, the vehicle upper element is parallel to the original speed change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled. The impedance of 2 is periodically changed for a short period of time less than the signal discrimination time to detect whether or not a predetermined speed change operation is performed in the vehicle upper element. As a result, in parallel with normal ground detection, the entire on-vehicle device of the automatic train stop device (signal display information) can be used without affecting normal operation operations whether the train is running or stopped. There is an effect that the soundness of the acquisition operation) can always be diagnosed.

  In other words, the onboard device of the automatic train stop device is provided with an impedance variable means for the vehicle upper 2, and the circuit response is obtained by periodically or continuously changing the impedance of the vehicle upper 2 for a short time less than the signal discrimination time. By confirming, there is an effect that failure detection can be performed quickly and reliably without potentially continuing the state in which the on-vehicle device cannot detect a normal ground element due to a failure or the like. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

Embodiment 10 FIG.
In the ninth embodiment, in a configuration in which a fail-safe element that can identify a failure mode is applied to the apparatus and the fail-safe property can be ensured by a single system, the impedance of the vehicle upper arm is periodically and temporarily changed to change the resonance frequency. Although the soundness of the apparatus can be ensured by checking the response, in the tenth embodiment, the circuit response when the resonance frequency of the onboard impedance is changed periodically and temporarily is doubled. A case will be described in which confirmation is performed by collation between systems.

  FIG. 10: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 10 of this invention. As shown in FIG. 10, the on-vehicle device 300 of the automatic train stop device according to the present embodiment generates a signal having a predetermined frequency with the vehicle upper 2 and inputs the signal to the vehicle upper 2. And a detection unit 301 that detects a change in impedance of the vehicle upper element 2 by detecting a reception state of a return signal from the child 2 and an impedance change detection circuit that includes the impedance change detection circuit. The detection unit 301 and the vehicle upper 2 are connected so as to be able to communicate information by wire or wirelessly.

  The detection unit 301 includes a signal generating unit 21, an output unit 13, an impedance change control unit 31, a redundant circuit unit J including an input unit 11a, an impedance change detection unit 52a, and a signal determination unit 22a, and an input unit. 11b, an impedance change detecting unit 52b, and a redundant circuit unit K including a signal determining unit 22b. Further, the vehicle upper element 2 includes an impedance element 32.

  The basic configuration is the same as that of the ninth embodiment except that the redundant circuit section is configured, and the same components as those of the ninth embodiment are denoted by the same reference numerals and detailed. The description will be omitted, and different points will be described. In the present embodiment, the on-board device of the automatic train stop device is configured using a digital device.

  The operation monitoring unit includes an input unit 11a and an impedance change detection unit 52a in the redundant circuit unit J, an input unit 11b and an impedance change detection unit 52b in the redundant circuit unit K, the signal generation unit 21, the output unit 13, and an impedance change. It is comprised by the control part 31 and the vehicle upper part 2. FIG.

  The output of the signal generation unit 21 is adjusted to an appropriate voltage value in the output unit 13 and input to the input unit 11a and the input unit 11b via the vehicle upper element 2. The output of the input unit 11a is input to the signal determination unit 22a and the impedance change detection unit 52a, and the output of the input unit 11b is input to the signal determination unit 22b and the impedance change detection unit 52b. The impedance change control unit 31 is arranged in connection with the impedance element 32 of the vehicle upper element 2.

  In the on-vehicle device of this automatic train stop device, the signal discrimination information discrimination results are collated between the signal discrimination unit 22a of the redundant circuit unit J and the signal discrimination unit 22b of the redundancy circuit unit K, and the duplex system Confirm by checking. Further, in the on-vehicle apparatus of this automatic train stop device, the impedance change detection unit 52a of the redundant circuit unit J and the impedance change detection unit 52b of the redundant circuit unit K are collated to collate the detection result. Confirm by verification between systems.

  As described above, in the on-vehicle device 300 of the automatic train stop device according to the present embodiment, the vehicle upper element is parallel to the original speed change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled. The impedance of 2 is periodically changed for a short period of time less than the signal discrimination time to detect whether or not a predetermined speed change operation is performed in the vehicle upper element. As a result, in parallel with normal ground detection, the signal display information of the on-board device of the automatic train stop device can be acquired without affecting the normal operation, whether the train is running or stopped. There is an effect that the soundness of the operation can always be diagnosed.

  In other words, the onboard device of the automatic train stop device is provided with an impedance variable means for the vehicle upper 2, and the circuit response is obtained by periodically or continuously changing the impedance of the vehicle upper 2 for a short time less than the signal discrimination time. By confirming, there is an effect that failure detection can be performed quickly and reliably without potentially continuing the state in which the on-vehicle device cannot detect a normal ground element due to a failure or the like. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

  In addition, when a digital element whose failure mode cannot be specified is applied to the apparatus, it is not possible to ensure fail-safeness by itself, so that double system verification is necessary. In the on-board device of the automatic train stop device according to the present embodiment, even in a circuit configuration in which a digital device whose failure mode cannot be specified is applied and a fail-safe property is ensured in a double system, the device is surely sound. There is an effect that the sex can be secured.

Embodiment 11 FIG.
In the seventh embodiment, there is a signal generation unit, an output unit, and a signal determination unit, and in the configuration for detecting a change in signal characteristics when the vehicle upper impedance changes due to the combination of the ground unit and the vehicle upper unit, impedance change Although the circuit response is confirmed by changing the circuit impedance of the detection circuit periodically and temporarily, the eleventh embodiment has a means for periodically and temporarily superimposing the test signal on the resonance signal. A case where the reception characteristics of the test signal, that is, the frequency and the signal level are monitored will be described.

  FIG. 11: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 11 of this invention. As shown in FIG. 11, the on-vehicle device 300 of the automatic train stop device according to the present embodiment generates a vehicle upper member 2 and a signal of a predetermined frequency and inputs the signal to the vehicle upper member 2. And a detection unit 301 that detects a change in impedance of the vehicle upper element 2 by detecting a reception state of a return signal from the child 2 and an impedance change detection circuit that includes the impedance change detection circuit. The detection unit 301 and the vehicle upper 2 are connected so as to be able to communicate information by wire or wirelessly.

  The detection unit 301 includes a signal generation unit 21, an output unit 13, a test signal generation unit 41 that superimposes and outputs a test signal on the output signal from the signal generation unit 21, an input unit 11, and a return from the vehicle upper element 2. A test signal reception characteristic determination unit 42 that determines a frequency and a signal level as reception characteristics of a test signal from a signal, and a signal determination unit 22 are provided. The on-vehicle device of the automatic train stop device is configured by applying a fail-safe element that can identify a failure mode.

  The operation monitoring unit includes the signal generation unit 21, the test signal generation unit 41, the output unit 13, the input unit 11, the test signal reception characteristic determination unit 42, and the vehicle upper element 2.

  The output of the signal generation unit 21 is adjusted to an appropriate voltage value at the output unit 13 and input to the input unit 11 via the vehicle upper element 2. The output of the input unit 11 is input to the signal determination unit 22 and the test signal reception characteristic determination unit 42.

  In the present embodiment, a test signal generation unit 41 and a test signal reception characteristic determination unit 42 are provided, and the test signal is superimposed on the output signal from the signal generation unit 21. Then, the frequency and signal level are always detected and judged as the reception characteristics of the test signal from the return signal from the vehicle upper element 2 to determine whether the reception characteristics are normally detected (whether the test signal has returned to normal). ) Is constantly monitored.

  If the reception characteristic of the test signal is normally detected from the return signal from the vehicle upper element 2, the test signal reception characteristic determination unit 42 determines whether the on-vehicle apparatus of the signal train information acquisition operation and the automatic train stop device Judge that it is healthy. On the other hand, if the reception characteristic of the test signal is not normally detected from the return signal from the vehicle upper element 2, the test signal reception characteristic determination unit 42 obtains the signal display information and the on-vehicle apparatus of the automatic train stop device. Is not healthy and a failure has occurred. In this case, the test signal reception characteristic determination unit 42 generates failure information and outputs the failure information to the upper brake device or the like.

  In the present embodiment, the frequency of the test signal may be a test signal having the same frequency as the resonance frequency, or may be a test signal having a frequency different from the resonance frequency. In the case of a test signal having a frequency different from the resonance frequency, the test signal may be continuously output. However, in the case of a test signal having the same frequency as the resonance frequency, continuous output cannot be performed.

  As described above, in the on-vehicle device 300 of the automatic train stop device according to the present embodiment, in parallel with the original speed change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled, the signal generation unit A test signal is superimposed on the output signal from 21 to detect whether the test signal has returned to normal. As a result, in parallel with normal ground detection, the entire on-board device of the automatic train stop device of the automatic train stop device without affecting the normal operation operation whether the train is running or stopped ( It is possible to always diagnose the soundness of the signal display information acquisition operation).

  That is, a test signal generation unit and a test signal reception characteristic determination unit are provided in the on-board device of the automatic train stop device, and the test signal is superimposed and output on the output signal from the signal generation unit 21 periodically or continuously. By confirming the signal reception characteristics, it is possible to detect a failure quickly and reliably without potentially continuing the state in which the onboard device is unable to detect a normal ground element due to a failure or the like. There is an effect. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

Embodiment 12 FIG.
In the eleventh embodiment, in a configuration in which a fail-safe element capable of specifying a failure mode is applied to the apparatus and the fail-safe property can be ensured by a single system, there is provided means capable of superimposing and outputting a test signal on a resonance signal periodically and temporarily. Although the soundness of the apparatus can be secured by monitoring the reception characteristics of the test signal, in the twelfth embodiment, the reception characteristics of the test signal, that is, the frequency and the signal level are confirmed by checking between the double systems. The case where it does is demonstrated.

  FIG. 12: is a figure which shows schematic structure of the apparatus for vehicles of the automatic train stop apparatus concerning Embodiment 12 of this invention. As shown in FIG. 12, the on-vehicle device 300 of the automatic train stop device according to the present embodiment generates the vehicle upper member 2 and a signal having a predetermined frequency and inputs the signal to the vehicle upper child member 2. And a detection unit 301 that detects a change in impedance of the vehicle upper element 2 by detecting a reception state of a return signal from the child 2 and an impedance change detection circuit that includes the impedance change detection circuit. The detection unit 301 and the vehicle upper 2 are connected so as to be able to communicate information by wire or wirelessly.

  The detection unit 301 includes a redundant circuit unit L including a signal generation unit 21, a test signal generation unit 41, an output unit 13, an input unit 11a, a signal determination unit 22a, and a test signal reception characteristic determination unit 42a. A redundant circuit unit M including an input unit 11b, a signal determination unit 22b, and a test signal reception characteristic determination unit 42b.

  The basic configuration is the same as that of the eleventh embodiment except that the redundant circuit section is configured, and the same components as those of the eleventh embodiment are denoted by the same reference numerals for details. The description will be omitted, and different points will be described. In the present embodiment, the on-board device of the automatic train stop device is configured using a digital device.

  The operation monitoring unit includes a signal generation unit 21, a test signal generation unit 41, an output unit 13, an input unit 11a in the redundant circuit unit L, a test signal reception characteristic determination unit 42a, a signal determination unit 22a, and a redundant circuit unit M. The input unit 11b, the test signal reception characteristic determination unit 42b, the signal determination unit 22b, the output unit 13, the test signal generation unit 41, and the vehicle upper element 2 are configured.

  The output of the signal generation unit 21 is adjusted to an appropriate voltage value in the output unit 13 and input to the input unit 11a and the input unit 11b via the vehicle upper element 2. In the present embodiment, the test signal generator 41 superimposes and outputs the test signal on the output of the signal generator 21. The output of the input unit 11a is input to the signal determination unit 22a and the test signal reception characteristic determination unit 42a. The output of the input unit 11b is input to the signal determination unit 22b and the test signal reception characteristic determination unit 42b.

  In the on-vehicle device of this automatic train stop device, the discrimination result of the signal display information is collated between the signal discriminating unit 22a of the redundant circuit unit L and the signal discriminating unit 22b of the redundant circuit unit M. Confirm by checking. Further, in the on-board device of the automatic train stop device, the determination results are collated between the test signal reception characteristic determination unit 42a of the redundant circuit unit L and the test signal reception characteristic determination unit 42b of the redundant circuit unit M. Then, check by checking between double systems.

  Also in the present embodiment, the test signal frequency may be a test signal having the same frequency as the resonance frequency, or may be a test signal having a frequency different from the resonance frequency. In the case of a test signal having a frequency different from the resonance frequency, the test signal may be output continuously. However, in the case of a test signal having the same frequency as the resonance frequency, continuous output cannot be performed.

  As described above, in the on-vehicle device 300 of the automatic train stop device according to the present embodiment, in parallel with the original frequency change operation in which the vehicle upper element 2 and the ground element 200 are electromagnetically coupled, the signal generation unit A test signal is superimposed on the output signal from 21 to detect whether the test signal has returned to normal. As a result, in parallel with normal ground detection, the entire on-board device of the automatic train stop device of the automatic train stop device (regardless of whether the train is running or stopped) without affecting the normal operation operation ( The soundness of the signal display information acquisition operation) can be always diagnosed.

  That is, a test signal generation unit and a test signal reception characteristic determination unit are provided in the on-board device of the automatic train stop device, and the test signal is superimposed and output on the output signal from the signal generation unit 21 periodically or continuously. By confirming the signal reception characteristics, it is possible to detect a failure quickly and reliably without potentially continuing the state in which the onboard device is unable to detect a normal ground element due to a failure or the like. There is an effect. As a result, there is an effect that it is possible to control to the fail-safe side such as applying emergency braking quickly and surely or reporting to the crew.

  In addition, when a digital element whose failure mode cannot be specified is applied to the apparatus, it is not possible to ensure fail-safeness by itself, so that double system verification is necessary. In the on-vehicle device of the automatic train stop device according to the present embodiment, even in a circuit configuration in which a digital device whose failure mode cannot be specified is applied and a fail-safe property is ensured in a double system, the device is surely sound. There is an effect that the sex can be secured.

  As described above, the on-vehicle device for the automatic train stop device according to the present invention is useful for ensuring the safety of the train in operation.

It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 1 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 2 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 3 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 4 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 5 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 6 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 7 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 8 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 9 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 10 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 11 of this invention. It is a block diagram for demonstrating the structure of the automatic train stop apparatus concerning Embodiment 12 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Oscillator 2 Upper part 11 Input part 11a Input part 11b Force part 12 Amplification part 12a Amplification part 12b Amplification part 13 Output part 14 Signal discrimination | determination part 14a Signal discrimination | determination part 14b No. discrimination | determination part 15 Impedance change part 16 Impedance change detection part 16a Impedance change detection unit 16b Impedance change detection unit 21 Signal generation unit 22 Signal determination unit 22a Signal determination unit 22b Signal determination unit 31 Impedance change control unit 32 Impedance element 41 Test signal generation unit 42 Test signal reception characteristic determination unit 42a Test signal reception characteristic Determination unit 42b Test signal reception characteristic determination unit 51 Impedance change unit 52 Impedance change detection unit 52a Impedance change detection unit 52b Impedance change detection unit 100 On-board device 200 Ground unit 300 On-board device 301 Intelligent part A Redundant circuit part B Redundant circuit part C Redundant circuit part D Redundant circuit part E Redundant circuit part F Redundant circuit part G Redundant circuit part H Redundant circuit part J Redundant circuit part K Redundant circuit part L Redundant circuit part M Redundant circuit part

Claims (22)

An on-vehicle device for an automatic train stop device that detects a change in impedance of the vehicle upper arm when a ground coil resonance coil is electromagnetically coupled to an oscillation coil of the vehicle upper arm and acquires signal display information from the ground child Because
An operation monitoring unit that monitors the soundness of the operation of acquiring the signal display information by changing the impedance of the vehicle upper;
An on-vehicle device for an automatic train stop device characterized by the above. The operation monitoring unit
The car upper;
An oscillating unit that constantly oscillates at a resonance frequency lower than a predetermined frequency using the vehicle upper element as a feedback circuit;
A feedback oscillation circuit configured by
The oscillation unit is
An amplifier for amplifying a signal output from the vehicle upper piece in the feedback oscillation circuit and inputting a part thereof to the vehicle upper piece;
An impedance changing unit for changing the impedance of the feedback oscillation circuit;
An impedance change detector for detecting a change in impedance of the feedback oscillation circuit;
Providing
The on-vehicle device for an automatic train stop device according to claim 1. The impedance changing unit periodically and temporarily changing the impedance of the feedback oscillation circuit;
The on-vehicle device for an automatic train stop device according to claim 2. The operation monitoring unit
The car upper;
An oscillating unit that constantly oscillates at a resonance frequency lower than a predetermined frequency using the vehicle upper element as a feedback circuit;
A feedback oscillation circuit configured by
The oscillation unit is
An amplifier for amplifying a signal output from the vehicle upper piece in the feedback oscillation circuit and inputting a part thereof to the vehicle upper piece;
An impedance change control unit for generating impedance change control information for controlling the change of the impedance of the vehicle upper;
An impedance change detector for detecting a change in impedance of the feedback oscillation circuit;
With
The vehicle upper element includes an impedance element capable of changing the impedance of the vehicle upper arm according to the impedance change control information;
The on-vehicle device for an automatic train stop device according to claim 1. A plurality of redundant circuit units each including the amplification unit, a signal determination unit that determines the type of the signal display information from the amplified signal, and the impedance change detection unit;
Collating the determination result of the signal display information between the signal determination units of each redundant circuit unit,
Collating the detection result of the impedance change between the impedance change detection units of each of the redundant circuit units;
The on-vehicle device for an automatic train stop device according to claim 2 or 4, characterized in that: The impedance change control unit periodically and temporarily controls the change in impedance of the vehicle upper;
The on-vehicle device for an automatic train stop device according to claim 4. The operation monitoring unit
The car upper;
An oscillating unit that constantly oscillates at a resonance frequency lower than a predetermined frequency using the vehicle upper element as a feedback circuit;
A feedback oscillation circuit configured by
The oscillation unit is
An amplifier for amplifying a signal output from the vehicle upper piece in the feedback oscillation circuit and inputting a part thereof to the vehicle upper piece;
A test signal generator that superimposes and outputs a test signal on the constantly oscillating resonance signal;
A test signal reception characteristic determination unit for determining a reception characteristic of the test signal from a return signal from the vehicle upper member;
Providing
The on-vehicle device for an automatic train stop device according to claim 1. A plurality of redundant circuit units each including the amplification unit, a signal determination unit that determines the type of the signal display information from the amplified signal, and the test signal reception characteristic determination unit;
Collating the determination result of the signal display information between the signal determination units of each redundant circuit unit,
Collating the test signal reception characteristic monitoring results between the test signal reception characteristic determination units of each of the redundant circuit units;
The on-vehicle device for an automatic train stop device according to claim 7. The test signal is a test signal having the same frequency as the resonance frequency;
The on-vehicle device for an automatic train stop device according to claim 7. The test signal is a test signal having a frequency different from the resonance frequency;
The on-vehicle device for an automatic train stop device according to claim 7. The test signal generator periodically outputs a test signal;
The on-vehicle device for an automatic train stop device according to claim 7. The operation monitoring unit
The car upper;
A detection unit that generates a signal of a predetermined frequency and inputs the signal to the vehicle upper element and detects a return state of a return signal from the vehicle upper element to detect a change in impedance of the vehicle upper element;
Having an impedance change detection circuit configured by
The detection unit is
A signal generation unit that generates a signal having a plurality of frequencies according to a resonance frequency with the ground unit;
An impedance changing unit for changing the impedance of the impedance change detection circuit;
An impedance change detection unit for detecting a change in impedance of the impedance change detection circuit;
Providing
The on-vehicle device for an automatic train stop device according to claim 1. A plurality of redundant circuit units including a signal determination unit that determines the type of the signal display information from a return signal from the vehicle upper part, and the impedance change detection unit;
Collating the determination result of the signal display information between the signal determination units of each redundant circuit unit,
Collating the detection result of the impedance change of the impedance change detection circuit between the impedance change detection units of each of the redundant circuit units;
The on-vehicle device for an automatic train stop device according to claim 12. The impedance changing unit periodically and temporarily changing the impedance of the impedance change detecting circuit;
The on-vehicle device for an automatic train stop device according to claim 12. The operation monitoring unit
The car upper;
A detection unit that generates a signal of a predetermined frequency and inputs the signal to the vehicle upper element and detects a return state of a return signal from the vehicle upper element to detect a change in impedance of the vehicle upper element;
Having an impedance change detection circuit configured by
The detection unit is
A signal generation unit that generates a signal having a plurality of frequencies according to a resonance frequency with the ground unit;
An impedance change control unit for generating impedance change control information for controlling the change of the impedance of the vehicle upper;
An impedance change detection unit for detecting a change in impedance of the impedance change detection circuit;
With
The vehicle upper element includes an impedance element capable of changing the impedance of the vehicle upper arm according to the impedance change control information;
The on-vehicle device for an automatic train stop device according to claim 1. A plurality of redundant circuit units including a signal determination unit that determines the type of the signal display information from a return signal from the vehicle upper part, and the impedance change detection unit;
Collating the determination result of the signal display information between the signal determination units of each redundant circuit unit,
Collating the detection result of the impedance change between the impedance change detection units of each of the redundant circuit units;
The on-vehicle device for an automatic train stop device according to claim 15. The impedance change control unit periodically and temporarily controls the change in impedance of the vehicle upper;
The on-vehicle device for an automatic train stop device according to claim 15. The operation monitoring unit
The car upper;
A detection unit that generates a signal of a predetermined frequency and inputs the signal to the vehicle upper element and detects a return state of a return signal from the vehicle upper element to detect a change in impedance of the vehicle upper element;
Having an impedance change detection circuit configured by
The detection unit is
A signal generation unit that generates a signal having a plurality of frequencies according to a resonance frequency with the ground unit;
A test signal generator that superimposes and outputs a test signal on the output signal from the signal generator;
A test signal reception characteristic determination unit for determining a reception characteristic of the test signal from a return signal from the vehicle upper member;
Providing
The on-vehicle device for an automatic train stop device according to claim 1. A plurality of redundant circuit units including a signal determination unit for determining a type of the signal display information from a return signal from the vehicle upper member, and the test signal reception characteristic determination unit;
Collating the determination result of the signal display information between the signal determination units of each redundant circuit unit,
Collating the test signal reception characteristic monitoring results between the test signal reception characteristic determination units of each of the redundant circuit units;
The on-vehicle device for an automatic train stop device according to claim 18. The test signal is a test signal having the same frequency as the resonance frequency;
The on-vehicle device for an automatic train stop device according to claim 18. The test signal is a test signal having a frequency different from the resonance frequency;
The on-vehicle device for an automatic train stop device according to claim 18. The test signal generator periodically outputs a test signal;
The on-vehicle device for an automatic train stop device according to claim 18.

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