JP3484134B2 - Train control device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train control device for controlling a train speed by receiving a train control signal transmitted from a ground signal facility, and more particularly to a train control signal for scanning the whole or a part of a route. The present invention relates to a train control device capable of arbitrarily recording and reproducing train control signals, waveform information of signals obtained by signal processing such as demodulation, or additional information such as reception levels.

[0002]

2. Description of the Related Art Generally, in a receiver of an ATC (Automatic Train Controller), a detection method by frequency selection or an F
The control signal from the ground side is extracted using the FT method. FIG. 7 is a configuration diagram schematically showing a receiving portion of a conventional train control device described in, for example, Japanese Patent Laid-Open No. 8-126105.

In FIG. 7, an antenna 31 serving as a receiver is provided.
The band-pass filters 32a1 and 32b1 that pass either one of the carrier frequencies fc1 and fc2 are connected in parallel with each other.

Each of the bandpass filters 32a1 and 32b1 includes
Amplifiers 32a2 and 32b2 and a detector 32a, respectively
3 and 32b3 are connected to each other, and further, a signal coupling circuit 33
An analog-digital (A / D) conversion circuit 40 is connected via the.

In the A / D conversion circuit 40, the received train control signal is converted from an analog signal into a digital signal (numerical sequence).

Further, the digital signal converted by the A / D conversion circuit 40 is classified by the FFT analyzer 41 for each frequency, and the signal processor 42 is configured to judge the train control signal.

Next, the operation of the conventional train control device shown in FIG. 7 will be described. Carrier frequency fc1, fc2
Are set to be different for each adjacent track closed section.

Either one of the carrier frequencies fc1 and fc2 is passed through the receiver 31 and the band filter 32a.
1 or 32b1 and passes through the amplifier 3 respectively.
After being adjusted to an appropriate signal level by 2a2 and 32b2, it is demodulated into a modulated wave by detectors 32a3 and 32b3.

The demodulated signal is converted into a digital signal by the A / D conversion circuit 40, and is separated by the FFT analyzer 41 for each frequency by FFT frequency analysis. Hereinafter, the signal analysis is determined by comparing the frequency analysis result with the known train control signal data stored in advance in the signal processor 42.

As described above, the receiver of the conventional train control device is obtained by analyzing and processing the received train control signal using the carrier wave selecting means, demodulating means, signal wave selecting means, frequency analyzing means, and the like. The focus is on recognition or determination of transmission information.

However, in the actual continuous maintenance of the signal equipment, the reception condition may be deteriorated due to the failure or deterioration of the signal equipment or the induction from the external noise source. Further, the reception level and phase also fluctuate moment by moment due to interference between signals at the track boundary, train operating conditions, fluctuations in the supplied power supply voltage, and the like.

Further, due to interference, leakage, etc. from a heterogeneous signal system such as a close track circuit or track radio,
The reception status may deteriorate temporarily. When a reception failure occurs in such a situation, the conventional on-board control device may cause a braking operation or a temporary stop of the signal system due to the abnormality detection, which may hinder the smooth operation of the train control.

Further, since the receiver of the conventional train control device is mainly intended to recognize or judge the transmission information,
It is not considered to record the waveform or information of the received signal at or before and after the occurrence of a failure in parallel for a long time.

In such a case, conventionally, a measuring instrument for analyzing a received signal is separately mounted on a train in order to identify a reception failure point or a phenomenon, and a detailed manual inspection is conducted at a time different from the time of abnormality detection. The method of doing is adopted.

However, if an investigation is carried out each time, labor and labor for investigation and inspection are required, and the same phenomenon is captured in the case of the above-mentioned temporary reception failure with low reproducibility. There is a high possibility that you cannot do it.

[0016]

As described above, the conventional train control device causes the occurrence of the braking operation or the temporary stop of the signal system by the abnormality detection when the reception failure occurs due to various factors, and the train control is performed. There was a problem that it hindered the smooth operation of the.

Further, since it is not considered to record the received signal waveform information at the time of occurrence of a failure or before and after the occurrence of the failure for a long time, the same phenomenon should be captured in the case of a temporary reception failure with low reproducibility. There was a problem that I could not do it.

The present invention has been made to solve the above problems, and is performed in parallel with the recognition process or the determination process of the transmission information necessary for the actual train operation, in parallel with the received waveform of the train control signal and the failure. Information necessary for analysis is recorded based on the determined abnormality determination, and digital time-series data is encoded and compressed to enable long-time recording, and a means for arbitrarily reproducing recorded signal information is provided. Therefore, it is an object of the present invention to obtain a train control device that facilitates detection of abnormalities and problem areas of signal equipment or testing of the train control device itself.

[0019]

A train control device according to claim 1 of the present invention comprises a receiver for receiving a train control signal from a ground signal facility, a train speed, point information, a blockage situation, a running state and a route. Train information acquisition means for acquiring train information such as state, train control means for outputting a speed control command to the train based on the train control information contained in the train control signal and the train information from the train information acquisition means, and the speed The train information acquisition means includes a braking device that generates a deceleration in a train in response to a braking command included in the control command, and the train information acquisition means detects a traveling speed of the train and a position that detects a traveling position of the train. The train control means includes a detection means and checks the current speed of the train and the target speed to be traveled from the train control information, the traveling speed and the traveling position of the train, and outputs a braking command to the braking device. A train control device which is physically and electrically matched with a receiver and adjusts a received signal of the receiver to an appropriate signal level, and A From a digital time series, a band limiting means for removing an unnecessary frequency component at the time of D / D conversion, an A / D conversion means for converting a received signal through the band limiting means into a digital time series at a predetermined sampling period. A signal discriminating means for extracting a carrier wave, demodulating a signal wave modulated from the carrier wave and discriminating train control information from the signal wave, an encoding compression means for encoding and compressing a digital time series, and an encoding compression means. A recording means capable of arbitrarily storing a data string encoded and compressed by the device and taking out the data, and outputting the data string extracted from the recording means by an appropriate signal system to the output device. Output means and a recording / reproducing control means for controlling the timing and sequence of storing and taking out the data sequence in the recording means, the waveform of the train control signal received by the receiver, and the carrier wave extracted from the train control signal. Waveform of the signal wave demodulated from the carrier wave, or the time-series change of the signal determination code obtained from the signal wave is stored in the recording means based on a command from the recording / reproducing control means, or recorded. The means outputs to the output device.

The train control device according to a second aspect of the present invention is the train control device according to the first aspect, wherein the output means is a decoding / decompressing means for decoding the data sequence code-compressed by the encoding / compressing means, and a predetermined unit. Second D / A conversion means for converting a digital time series into an analog signal at a cycle of, and unnecessary frequency components at the time of D / A conversion by the second D / A conversion means are removed to obtain a reproduced signal. Second band limiting means of
Second output means for adjusting the reproduction signal to an appropriate signal level, and the output device is constituted by a transmitter for transmitting the output signal of the second output means to a receiver and recorded in the recording means. The train signal is reproduced and output via the transmitter.

A train control device according to a third aspect of the present invention is the train control device according to the first aspect, wherein the output device is a recording device formed of a portable recording medium, and outputs the output signal based on a command from the recording / reproducing control means. The additional information such as the reception waveform or the reception state of the reception level extracted from the recording means via the means is input.

A train control device according to a fourth aspect of the present invention is the train control device according to the first aspect, wherein the output device includes an information transmission device connected to the output means and an information reception device connected to the information transmission device. Based on a command from the recording / reproducing control means, additional information such as the reception state of the reception waveform or the reception level extracted from the recording means is input through the output means.

A train control device according to a fifth aspect of the present invention is the train control device according to the first aspect, wherein the output device is an information display device, and recording is performed via the output means based on a command from the recording / reproducing control means. The additional information such as the reception waveform or the reception state of the reception level extracted from the means is displayed.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is a block diagram showing an on-vehicle receiving device of a train control device according to a first embodiment of the present invention.

In FIG. 1, reference numeral 1 is a receiver similar to a conventional device for receiving a train signal, which is installed in the lower part of the vehicle body.
A train signal receiving device is configured with the train car,
The train control signal is received by electromagnetic induction with the ground side.

Reference numeral 2 is an input means connected to the receiver 1, which is physically and electrically matched with the receiver 1 to adjust the received signal to an appropriate signal level.

A band limiting means 3 is connected to the input means 2 and removes unnecessary frequency components during A / D conversion.
Reference numeral 4 is an A / D conversion means connected to the band limiting means 3 and converts an analog signal into a digital time series at a predetermined sampling period.

Reference numeral 5 is a signal discriminating means connected to the A / D converting means 4. The carrier wave is extracted from the digital time series, the signal wave modulated from the extracted carrier wave is demodulated, and the obtained signal wave is extracted. Determine train control information.

Reference numeral 6 is a speed detecting means for detecting a running speed from a speed generator or speed sensor, and 7 is a position detecting means for detecting a running position from starting point information or a running distance calculation from a point information transmission device or the like.

Numeral 8 is a train control means, which takes in output information from the signal discrimination means 5, the speed detection means 6 and the position detection means 7, checks the current speed and the target speed to be traveled, and outputs a braking command. .

A braking device 9 is connected to the train control means 8 and brakes the vehicle according to a braking command from the train control means 8 to generate various decelerations.

Reference numeral 10 is an encoding / compressing means for encoding / compressing the digital signal sequence from the A / D converting means 4. The encoding / compression means 10 extracts only the band of the signal to perform the band compression, or removes the redundancy included in the time-series data of the signal to obtain the original data amount obtained by the predetermined sampling. Compress.

Reference numeral 11 is a recording means capable of arbitrarily storing the compressed data from the encoding / compressing means 10 and taking out the data, and 12 is an output means for outputting the data stored in the recording means 11 in an appropriate signal system. .

Reference numeral 13 is a recording / reproducing control means, and in response to a recording / reproducing command from the signal discriminating means 5, the train controlling means 8 and the input device 14, the encoding / compressing means 10 and the recording means 11 are provided.
It also controls data transfer between the output means 12 and the output means 12.

The input device 14 inputs a command signal for recording / reproducing operation to the recording / reproducing control means 13. Reference numeral 15 is an output device connected to the output means 12,
The stored data in the recording means 11 extracted by is input.

In the above structure, the characteristic part of the present invention is
The addition of the band limiting means 3 and the A / D conversion means 4, the encoding / compression means 10, the recording means 11, the output means 12
Since the recording / reproducing control means 13 is added, the other structure is the same as that of the conventional analog type device.

Next, the reception operation and control operation according to the first embodiment of the present invention shown in FIG. 1 will be specifically described. First, the train control signal received from the ground signal equipment via the receiver 1 is adjusted to an appropriate signal level by the input means 2, and the band limiting means 3 removes unnecessary high frequency components in the signal, It is input to the A / D conversion means 4.

Here, the unnecessary frequency component in the received signal is a frequency component existing in a band of about ½ or more of the sampling frequency. For example, when the signal band of the received signal is 15 kHz or less, sampling is performed at 50 kHz based on the sampling theorem, and frequency components of 20 kHz or more are removed as unnecessary frequency components.

The received signal adjusted to an appropriate signal band by the band limiting means 3 is converted by the A / D conversion means 4 from a continuous analog amount into a discrete digital time series.

Since the digital time series thus obtained is a modulated signal, the signal discriminating means 5 extracts the carrier wave and demodulates the modulated signal wave from the extracted carrier wave. Train control information is discriminated from the received signal waves.

The extraction of the frequency component can be realized by a filter calculation by a transfer function having a frequency selection characteristic or a frequency analysis calculation by a fast Fourier transform.

As an example, when a signal wave indicating a certain train speed is set to 20 Hz and a signal in which a carrier of 15 kHz is amplitude-modulated at 20 Hz is received, the modulated wave is sidebanded by a bandpass filter having a center frequency of 15 kHz. After extracting and demodulating the frequency band, a band pass filter centering on 20 Hz is passed.

At this time, if the output of the band pass filter is obtained, it means that the signal of 20 Hz is received, and the target speed to be controlled can be obtained. Further, the received signal can be discriminated also in a system in which the carrier frequency is switched for each block section or in a system in which a signal is composed of a combination of different signal waves and carrier waves.

Further, as another example, the carrier wave is 10 kHz.
z, and when a signal frequency-modulated by a signal code that conveys the section where the preceding train is present is received, a band-pass filter having a center frequency of 10 kHz extracts a frequency band whose side band is the modulated wave and demodulates it. By
The original signal code can be obtained to know the section where the preceding train exists.

The train control information thus obtained from the signal wave is input to the train control means 8. Train control means 8
Train speed information obtained from the received signal and speed detecting means 6
By comparing and collating with the traveling speed input from
An optimum braking command is given to the braking device 9 to generate a necessary deceleration and run the train at the target speed.

Alternatively, the train control means 8 calculates the distance to the preceding train by referring to the preceding train presence section information obtained from the received signal and the own train position inputted from the position detection means 7, The optimum target speed according to the braking characteristics of the own train is determined, the optimum braking command is given to the braking device 9, the necessary deceleration is generated, and the train runs at the target speed.

On the other hand, in parallel with the above-mentioned signal discrimination processing for train control, time-series data of train control signal waveforms which are analog / digital converted by the A / D conversion means 4, or
The carrier wave waveform extracted from the train control signal transferred by the signal discriminating means 5 and the signal wave waveform demodulated from the carrier wave signal are train speed time series data transferred from the train control means 8 and point information time series data. Also, the information is recorded in the recording means 11 together with the information related to the train operation status such as time data.

However, the data string to be recorded is band-compressed by the coding compression means 10 by extracting only the band of the signal, or the redundancy included in the time-series data of the signal is removed. As a result, it is compressed more than the original amount of data obtained at the predetermined sampling frequency.

For example, if the train control signal is amplitude-modulated, the spectrum of the signal is limited to within the bandwidth of the signal wave frequency distributed around the carrier frequency, so only this signal band is extracted. If encoded, the signal information can be expressed with a smaller number of bits.

Since the demodulated signal wave changes at a bit rate lower than the carrier frequency, the redundancy is removed by forming a data string indicating a signal change instead of a data string for each bit. Therefore, the signal information can be expressed with a smaller number of bits.

Therefore, by the encoding compression by the encoding compression means 10, with a smaller hardware configuration,
Long-term recording or multi-phenomena recording can be performed more efficiently.

The data train of the signal waveform thus recorded in the recording means 11 is adjusted to an appropriate signal by the output means 12 and then output to the output device 15. As a result, the received waveform of the recorded train control signal can be output.

At this time, the recording / reproducing control means 13 causes the encoding / compression means 10 to the recording means 1 based on the information from the signal discrimination means 5, the train control means 8, the input device 14, and the like.
Recording to 1 or reproduction from the recording means 11 to the output means 12 is controlled.

For example, the recording / reproducing control means 13 responds to the case where an abnormal signal discrimination result is obtained in the signal discriminating means 5 and the train control means 8 or in response to a change in the state set in the input device 14, that is, In accordance with the operation commands for starting and stopping the recording of the train control signal, the timing of recording / reproducing with respect to the recording means 11 and the order and interval thereof are determined.

Therefore, in parallel with the recognition processing or the judgment processing of the transmission information necessary for the actual train operation, the received waveform of the train control signal at the time of the abnormality and the information necessary for the failure analysis can be recorded. Moreover, the recorded signal information can be arbitrarily reproduced.

As described above, by encoding and compressing the received waveform of the train control signal or the signal waveform processed by the accompanying signal processing, a small-scale hardware configuration is used and the efficiency is improved for a long time. Records and multi-phenomena records can be made.

Further, by collecting, accumulating and analyzing received waveforms of train control signals or information necessary for failure analysis, it is possible to clarify obstacle boundaries of ground signal equipment and train control devices and to maintain the signaling system. You can

Embodiment 2. Although the specific configurations of the output means 12 and the output device 15 are not mentioned in the first embodiment, they may be configured as follows.

FIG. 2 is a block diagram showing a second embodiment of the present invention in which the configurations of the output means 12 and the output device 15 in FIG. 1 are embodied. Regarding the same components as those described above (see FIG. 1), The same reference numerals are given and detailed description is omitted.

In FIG. 2, reference numeral 16 is a decoding / expansion means connected to the recording means 11, and under the control of the recording / reproducing control means 13, the encoded and compressed data string is restored to the data string before being compressed. To do.

Reference numeral 17 denotes a second D / A conversion means (hereinafter, simply referred to as "D / A conversion means") connected to the decoding / expansion means 16 and analogizes the digital time series at a predetermined sampling period. Convert to signal.

Reference numeral 18 denotes a second band limiting means (hereinafter simply referred to as "band limiting means") connected to the D / A converting means 17, and is generated when the D / A converting means 17 performs D / A conversion. Remove unnecessary harmonic components.

Reference numeral 19 is a second terminal connected to the band limiting means 18.
Output means (hereinafter simply referred to as "output means"),
The analog signal via the band limiting means 18 is adjusted to an appropriate signal level. Reference numeral 20 is a transmitter that outputs the reproduced train control signal to the receiver 1.

In this case, the above-mentioned output means is the decoding / expansion means 16, the D / A conversion means 17, and the band limiting means 18.
And output means 19. Further, the above-mentioned output device is composed of the transmitter 20 which transmits the output signal of the output means 19 to the receiver 1.

As a result, the train signal recorded in the recording means 11 is reproduced and output via the transmitter 20.

In the train control device configured as shown in FIG. 2, unlike the case of the first embodiment described above (see FIG. 1), the reception abnormality recorded in the recording means 11 occurs during train running. Since the same reception situation as at the time point can be reproduced without actually re-driving, detailed analysis can be performed by checking the operation of the device.

That is, if a reception abnormality due to some cause is detected during traveling, the recording / reproducing control means 13 records the data sequence of the received signal waveform before and after the occurrence of the abnormality in the recording means 11.

Alternatively, in the state where the data train is continuously recorded in the recording means 11, by adding the data indicating the time when the abnormality occurs to the data train of the received signal waveform, the time when the abnormality occurs can be specified later. These operations are controlled by the recording / reproducing control means 13.

Therefore, at the time of analyzing the abnormality, the recording / reproducing control means 13 instructs the decoding / expansion means 16 in accordance with the instruction from the input device 14 while the train is stationary and the recording means 11 is instructed. The encoded compressed data string from is decoded into the data string before being compressed.

As a result, originally, it is possible to restore the data sequence having the same time period and the same resolution as the sampling period when the A / D conversion means 4 converts into a digital time series.

The data string thus decoded and expanded is D
The / A converter 17 converts the discretized digital time series into a continuous analog quantity. Further, unnecessary harmonic components generated by the D / A conversion are removed by the band limiting means 18, and the output means 19 restores the train control signal originally received and reproduces it.

It is possible to confirm whether there is an abnormal time point of the received signal by observing the signal reproduced in this way with an oscilloscope or the like, but here, the transmitter 20 using electromagnetic coupling or the like is used. By using the reproduced test signal to the receiver 1, the device response at the time of abnormal reception can be confirmed.

Third Embodiment Although the specific configuration of the output device 14 is not mentioned in the first embodiment, the output device 14 may be configured by a recording device including a portable recording medium.

FIG. 3 is a block diagram showing a third embodiment of the present invention in which the output device 14 in FIG. 1 is embodied. The same components as those described above (see FIG. 1) are designated by the same reference numerals. Detailed description is omitted.

In FIG. 3, reference numeral 21 denotes the output device 14 described above.
Is a recording device corresponding to, and is composed of a portable recording medium such as a memory card or a recording disk, and is configured to record data.

The recording device 21 receives the recording means 11 via the output means 12 based on the command from the recording / reproducing control means 13.
The additional information such as the reception waveform or the reception status of the reception level extracted from is input.

In the train control device thus configured, the recording / reproducing control means 13 records the data sequence of the reception signal waveform at the time of the reception abnormality, which is recorded in the recording means 11, on the basis of the command from the input device 14. The data string is transferred to the recording device 21 via the output means 12 and is recorded in a portable recording medium in a predetermined form.

The data string on the portable recording medium can be read out by a measuring device or an external device such as a computer, and can be used for waveform analysis work at the time of abnormal reception.

Fourth Embodiment Although the output device is configured by the recording device 21 in the third embodiment, it may be configured by the information transmission device and the information reception device.

FIG. 4 is a block diagram showing a fourth embodiment of the present invention in which the output device is an information transmission device.
The same components as those described above (see FIG. 1) are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 4, reference numeral 22 denotes an information transmission device connected to the output means 12, which mediates wireless and wired communication paths. Reference numeral 23 is an information receiving device of the train operation manager connected to the information transmitting device 22.

In this case, the output device is the information transmission device 22.
And the information receiving device 23, and the information receiving device 23 receives the reception waveform or the reception level extracted from the recording means 11 via the output means 12 on the basis of a command from the recording / reproducing control means 13. Additional information such as is input.

In the train control device constructed as shown in FIG. 4, when the recording / reproducing control means 13 detects a reception abnormality, it records the data sequence of the reception signal waveform recorded in the recording means 11 at the time of occurrence of the reception abnormality. , To the information transmission device 22 via the output means 12.

Therefore, the data string transmitted to the information transmitting device 22 can be transmitted to the information receiving device 23 of the train operation manager in a predetermined form via the wireless and wired communication paths, and the abnormal portion is detected. It leads to early detection.

Embodiment 5. In the fourth embodiment, the output device is the information transmission device 22 and the information reception device 2.
However, the information display device may be used instead.

FIG. 5 is a block diagram showing a fifth embodiment of the present invention in which the output device is an information display device.
The same components as those described above (see FIG. 1) are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 5, reference numeral 24 is an information display device connected to the output means 12, and based on a command from the recording / reproducing control means 13, the received waveform or the reception waveform extracted from the recording means 11 via the output means 12. Additional information such as the level reception status is displayed.

In the train control device configured as shown in FIG. 5, the recording / reproducing control means 13 stores the data sequence of the received signal waveform at the time of occurrence of the reception abnormality recorded in the recording means 11 when the reception abnormality is detected, The information can be transmitted to the information display device 24 via the output means 12, and a warning can be issued to a display device or the like on the cab.

Sixth Embodiment Although the band limiting means 3 and the A / D converting means 4 are interposed between the input means 2 and the signal discriminating means 5 in the first embodiment, the input means 2
And the signal discrimination means 5 may be directly connected.

FIG. 6 is a block diagram showing a sixth embodiment of the present invention in which the input means 2 and the signal discriminating means 5 are directly connected, and the individual elements are the same as those described above (see FIG. 1). Has been done.

In FIG. 6, the function of the signal discriminating means 5 is as follows.
It can be achieved in the same manner as the conventional train control device (see FIG. 7) (all configured by analog circuits). The band limiting unit 3A and the A / D converting unit 4A correspond to the band limiting unit 3 and the A / D converting unit 4 described above.

The band limiting means 3A takes in not only the signal received through the input means 2 but also the information from the signal discriminating means 5. The A / D conversion unit 4A inputs the digital time series only to the encoding / compression unit 10.

In this case, the band compression means 3A and A directly related to the encoding / compression means 10 to the recording / reproducing control means 13 are provided.
By adding the / D conversion means 4A to the conventional train control device, it is possible to achieve the same effects as the above.

[0094]

As described above, according to claim 1 of the present invention, the receiver for receiving the train control signal from the ground signal equipment, and the train speed, point information, blockage condition, running condition, route condition, etc. Train information acquisition means for acquiring the train information, train control means for outputting a speed control command for the train based on the train control information contained in the train control signal and the train information from the train information acquisition means, and the speed control command A braking device for generating a deceleration in a train in response to a braking command included therein, the train information acquisition means, a speed detection means for detecting a traveling speed of the train, and a position detection means for detecting a traveling position of the train. The train control means includes train control information,
A train control device that outputs a braking command to a braking device by checking the current speed of the train and a target speed to be traveled from the traveling speed and traveling position of the train, and physically and electrically with the receiver. Means for adjusting the received signal of the receiver to an appropriate signal level, and band limiting means for removing unnecessary frequency components from the received signal via the input means during A / D conversion, A / D conversion means for converting the received signal through the band limiting means into a digital time series at a predetermined sampling period, and a carrier wave is extracted from the digital time series, and a signal wave modulated from the carrier wave is demodulated, A signal discriminating means for discriminating train control information from a signal wave, an encoding compression means for encoding and compressing a digital time series, and a data string encoded and compressed by the encoding and compression means are arbitrarily stored. A recording means capable of taking out data, an output means for outputting a data string taken out from the recording means by an appropriate signal system to an output device, and a timing and an order of storing and taking out the data string in the recording means Recording / reproducing control means is provided, and the waveform of the train control signal received by the receiver, the waveform of the carrier wave extracted from the train control signal, the waveform of the signal wave demodulated from the carrier wave, or the signal determination obtained from the signal wave Based on a command from the recording / reproducing control means, the time-series change of the code is stored in the recording means, or is output from the recording means to an output device to recognize or determine the transmission information necessary for actual train operation. In parallel with the processing, the received waveform of the train control signal and the information necessary for failure analysis are recorded based on the determined abnormality determination, and digital time series data is encoded. The train control device makes it possible to record for a long time because it is shortened, and it is possible to easily reproduce the recorded signal information and detect abnormalities or problem areas of the signal equipment or test the train control device itself. There is an effect that can be obtained.

According to a second aspect of the present invention, in the first aspect, the output means includes a decoding / expansion means for decoding the data string coded and compressed by the coding / compression means,
Second D / A conversion means for converting a digital time series into an analog signal at a predetermined cycle, and unnecessary frequency components at the time of D / A conversion by the second D / A conversion means are removed to obtain a reproduced signal. And a second output means for adjusting the reproduction signal to an appropriate signal level, and the output device transmits the output signal of the second output means to the receiver. Since the train signal recorded in the recording means is reproduced and output via the transmitter, it is possible to record for a long time, and the recorded signal information can be arbitrarily reproduced to provide the signal equipment. It is possible to obtain a train control device that facilitates the detection of abnormalities and problem areas of the train or the test of the train control device itself.

According to a third aspect of the present invention, in the first aspect, the output device is composed of a recording device which is a portable recording medium, and the output device is operated via the output device based on a command from the recording / reproducing control device. Since additional information such as the reception waveform or the reception level of the reception level extracted from the recording means is input, long-time recording is possible and
There is an effect that a train control device can be obtained in which the recorded signal information is arbitrarily reproduced to easily detect an abnormality or a problem portion of the signal equipment or to easily test the train control device itself.

According to a fourth aspect of the present invention, in the first aspect, the output device comprises an information transmission device connected to the output means and an information reception device connected to the information transmission device. Based on the command from the recording / reproducing control means, the additional information such as the reception waveform or the reception level of the reception level extracted from the recording means is input through the output means, which enables long-time recording. There is an effect that a train control device can be obtained in which the recorded signal information is arbitrarily reproduced to easily detect an abnormality or a problem part of the signal equipment or to test the train control device itself.

According to a fifth aspect of the present invention, in the first aspect, the output device is constituted by an information display device, and is output from the recording means via the output means based on a command from the recording / reproducing control means. Since additional information such as the received waveform or the reception status of the received level is displayed, it is possible to record for a long time, and the recorded signal information can be played back arbitrarily to detect abnormalities or problem areas in the signal equipment. There is an effect that a train control device that facilitates detection or testing of the train control device itself can be obtained.

[Brief description of drawings]

FIG. 1 is a block configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing a second embodiment of the present invention.

FIG. 3 is a block diagram showing a third embodiment of the present invention.

FIG. 4 is a block diagram showing a fourth embodiment of the present invention.

FIG. 5 is a block diagram showing a fifth embodiment of the present invention.

FIG. 6 is a block diagram showing a sixth embodiment of the present invention.

FIG. 7 is a configuration diagram schematically showing a conventional train control device.

[Explanation of symbols]

1 receiver, 2 input means, 3 and 3A band limiting means,
4, 4A A / D conversion means, 5 signal determination means, 6 speed detection means, 7 position detection means, 8 train control means, 9
Braking device, 10 encoding compression means, 11 recording means,
12 output means, 13 recording / reproducing control means, 14 input device, 15 output device, 16 decoding and expanding means, 17
Second D / A conversion means, 18 second band limiting means, 1
9 second output means, 20 transmitter, 21 recording device,
22 information transmission device, 23 information receiving device, 24 information display device.

─────────────────────────────────────────────────── --Continued from the front page (56) References JP 59-72901 (JP, A) JP 59-159601 (JP, A) JP 5-56506 (JP, A) JP 3- 267878 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B61L 27/00

Claims (5)

(57) [Claims] 1. A receiver for receiving a train control signal from a ground signal facility, train information acquisition means for acquiring train information such as train speed, point information, blockage status, running status and route status, and the train control. Train control means for outputting a speed control command to the train based on train control information included in a signal and train information from the train information acquisition means, and the train in response to a braking command included in the speed control command. The train information acquisition unit includes a speed detection unit that detects a traveling speed of the train, and a position detection unit that detects a traveling position of the train. Means, from the train control information, the traveling speed and traveling position of the train, the current speed of the train and the target speed to be traveled is checked, and the braking command to the braking device. A train control apparatus for a force, is physically and electrically matching between said receiver,
Input means for adjusting the received signal of the receiver to an appropriate signal level, band limiting means for removing unnecessary frequency components from the received signal via the input means during A / D conversion, and the band limiting means A / D conversion means for converting the received signal via the digital time series at a predetermined sampling period; and extracting a carrier wave from the digital time series and demodulating a signal wave modulated from the carrier wave, A signal discriminating means for discriminating the train control information from a signal wave, an encoding compression means for encoding and compressing the digital time series, and a data string optionally encoded by the encoding compression means and data Recording means that can be taken out; output means that outputs the data string taken out from the recording means by an appropriate signal system to an output device; and the data string And a recording / reproducing control means for controlling the timing and sequence of storing and extracting in the recording means, the waveform of the train control signal received by the receiver, the waveform of the carrier extracted from the train control signal, the carrier. The waveform of the signal wave demodulated from, or the time series change of the signal determination code obtained from the signal wave is stored in the recording means based on a command from the recording / reproducing control means, or the recording is performed. A train control device, wherein the train control device outputs the train to the output device. 2. The output means includes a decoding / expansion means for decoding the data string coded and compressed by the coding / compression means, and a second decoding means for converting the digital time series into an analog signal at a predetermined cycle. A D / A conversion means and a second for removing an unnecessary frequency component at the time of the D / A conversion by the second D / A conversion means to obtain a reproduced signal.
And a second output means for adjusting the reproduction signal to an appropriate signal level, wherein the output device transmits the output signal of the second output means to the receiver. The train control device according to claim 1, wherein the train signal recorded in the recording means is reproduced and output via the transmitter. 3. The output device is composed of a recording device composed of a portable recording medium, and based on a command from the recording / reproducing control means, a reception waveform or a reception waveform extracted from the recording means via the output means. The train control device according to claim 1, wherein additional information such as a level reception state is input. 4. The output device is composed of an information transmission device connected to the output means and an information reception device connected to the information transmission device, and based on a command from the recording / reproduction control means, The train control device according to claim 1, wherein additional information such as a reception waveform or a reception state of a reception level extracted from the recording unit is input via the output unit. 5. The output device comprises an information display device, and based on a command from the recording / reproducing control means, a reception waveform or a reception level of a reception waveform extracted from the recording means via the output means. The train control device according to claim 1, wherein the additional information is displayed.