JP2009126198A - Transmitting rack mounting device of railway signal safety facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make improvement so that ATT (attenuator) setting information an attenuator equivalent function 28 of a transmitter 50 before automatic exchange is set for the attenuator equivalent function 28 of the transmitter 50 after exchange by assistance of a logic part 40 which is continuously loaded for a transmit rack 30. <P>SOLUTION: Non-volatile memories 41, 51 are provided for both the logic part 40 and the transmitter 50 communicating via an in-rack network 31 and the ATT setting information of the attenuator equivalent function 28 which is adjusted is stored not only in the transmitter 50 but also in the logic part 40 and, immediately after start up by power supply and initialization and the like, the ATT setting information 52 of the transmitter 50 is updated by the ATT setting information 42 of the non-volatile memories 41 of the logic part 40. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a transmission rack mounting device for a railroad signal security facility, and more particularly, among railroad signal security facilities such as an ATC (automatic train control device), a transmission rack installed on the ground side, and a track circuit mounted on the transmission rack. The present invention relates to a transmission device that transmits a signal to the network. More specifically, the present invention relates to the level adjustment of the transmission signal. The transmission rack of the present invention includes a transmission / reception rack.

  A conventional ATC ground device that uses a lot of relays (see, for example, Non-Patent Document 1) includes a conditional transmission / reception relay rack equipped with a relay that relays external conditions such as a higher-level interlock device, a carrier wave generation unit, and a signal wave generation unit. A built-in oscillation rack, a modulated wave generator rack equipped with an amplitude modulation circuit, a relay rack equipped with a relay that determines the signal wave by performing logical operations such as presenting determination based on external conditions, and amplifies the signal wave Then, it is finely distributed between a transmission rack equipped with a transmitter for transmitting signals to the track circuit, and a guard rack (matching transformer rack) equipped with an impedance matching transformer, arrester and surge arrester for transmission signals. It was implemented. Attenuators that adjust the signal output level were also distributed and installed in the equipment on each rack. The attenuator was an individual element

  On the other hand, in an ATC ground device adopting a computer and a circuit element that have been miniaturized (see, for example, Non-Patent Documents 2 and 3), in addition to the amplification function, a logical operation function is also incorporated in the transmitter, Has been reduced. That is, this conventional ATC ground device (see FIG. 7 (a)) is a circuit required for signal transmission in one section of the orbit 14 (orbit circuit), the above-described carrier wave generator, signal wave generator, A circuit corresponding to an amplitude modulation circuit, a logic operation unit, and an amplification unit is integrated into one transmitter 20, so that the relay frame 11 corresponding to the above-described conditional transmission / reception relay frame and a plurality of / multiple transmitters are provided. The transmission rack 12 on which 20 is mounted and the transformer rack 13 corresponding to the above-described security rack are sufficient.

Specifically (see FIG. 7A), for example, the relay rack 11 includes an ATC speed control relay T25 for transmitting conditions and the like from the interlocking device 10 to the transmitter 20, and a display chain from the transmitter 20 to the host device. A display lock relay T0 or the like for transmitting information such as a lock is mounted.
Also, the transformer rack 13 is equipped with a matching transformer MT for matching the impedance between the cable leading to the track 14 and the output stage of the transmitter 20.
Furthermore, in addition to a large number of transmitters 20 such as 14 mounted on the transmission rack 12, switching relays COR, SCR, etc. that permit / suppress signal transmission from the transmitter 20 to the matching transformer MT, It is installed. All of the transmitters 20 are collected in a detachable unit and can be easily replaced. The mounting of the SCR is not limited to the transmission rack, and the SCR may be mounted on the relay rack or the transformer rack.

  Each transmitter 20 (see FIG. 7A) includes a computer 21 (CPU) that performs a logical operation related to railway signal security and issues a transmission signal generation instruction such as speed control information, and in response to the instruction. A transmission signal generation circuit 24 that generates a transmission signal, a power amplification circuit 23 (PA) that amplifies the transmission signal and sends it to the track 14 via the impedance matching transformer MT, and checks the output level and signal frequency of the transmission signal A transmission level checking circuit 22 (LD) for performing the above is incorporated. Further, as a peripheral circuit of the computer 21, a digital input / output circuit (DIO) for inputting the output of the relay T25, a drive circuit (RYD) of the relays COR, SCR, T0, a D / A conversion circuit (not shown) and A A / D conversion circuit is also incorporated in the transmitter 20.

  When each part is described in detail (refer to FIG. 7B), the computer 21 incorporated in the transmitter 20 performs a display determination which is a typical example as a logical operation related to the signal security of the railway and the display determination. Display determination program for giving instructions such as speed control information based on the above, self-diagnosis program for performing self-operation diagnosis and in particular input / output verification to ensure fail-safety, and detection signal of the transmission level verification circuit 22 A level detection program for detecting and confirming the output level of the transmission signal is installed. A fail-safe computer is used as such a computer 21.

  The transmission signal generation circuit 24 generates a carrier wave of, for example, 3150 Hz assigned to the ATC (see the sine wave in FIG. 7C), and the speed control information instructed by the computer 21. A signal wave generation circuit 25 for selecting a frequency from several stages of frequencies, for example, 13 Hz, 16 Hz,..., 89 Hz, and generating a signal wave of that frequency (see FIG. 7D), a mixer and a band pass filter, and a carrier wave. A modulation circuit 27 that generates an ATC signal wave (see FIGS. 7 (e1) and (e2)) by modulating with the signal wave, and an ATC signal wave of an appropriate level by changing the amplitude of the ATC signal wave (FIG. 7 (f)). An attenuator 28 to be referred to) and a pulse width modulation circuit 29 for generating a PWM modulated wave from the ATC signal wave. These circuits are embodied as analog circuits, and individual elements are employed for the attenuator 28. For example, an attenuator using resistance switching of a rotary switch structure has been used.

The power amplifier circuit 23 (see FIG. 7B) is provided with an amplifier (Amp) that amplifies the PWM modulated wave, a filter (FIL) such as a low-pass filter and a band-pass filter, and the like.
The transmission level checking circuit 22 includes an attenuator (ATT) for adjusting the level of a signal detected by a transformer or the like for a transmission signal output from the transmitter 20 toward the orbit 14, and a bandpass filter (BPF) for removing noise components. ), A detection circuit for extracting level components by envelope detection or the like is provided.

  Since such an ATC ground device is interposed between the interlocking device 10 and the track 14, the ATC ground device is output from the interlocking device 10 that realizes a chain (interlock) of traffic lights and switchboards related to the track 14. Based on conditions and the like, an ATC signal (transmission signal) for instructing starting and stopping, an upper limit speed, and the like is generated for a train traveling on the track 14, and the ATC signal is transmitted to each section (track circuit) of the track 14. 14 is delivered to the ATC on-board device of the train on the train 14, so that appropriate speed control is performed on the train traveling on the track 14.

  In addition, since the attenuators that have been distributed to a plurality of racks are concentrated in the attenuator 28 of the transmitter 20 of the transmission rack 12, the signal output level can be easily adjusted by adjusting the attenuator 28 for each transmitter 20. Can be set. If the ATC signal wave after modulation remains adjusted at the time of shipment from the factory, it is at a constant level (see FIG. 7 (e)), but the value set for each track is different, so the difference from the set value is small Reduces the attenuation at the attenuator 28 (see FIG. 7 (f1)), and increases the attenuation at the attenuator 28 when the difference from the set value is large (see FIG. 7 (f2)). The attenuator 28 is adjusted by manually operating a movable member such as a knob or a screw. The signal output level is more strongly influenced by the electrical characteristics of the condition outside the transmitter, for example, the cables before and after the transformer rack 13 and the track circuit of the track 14 than the condition inside the transmitter. Therefore, when the transmitter 20 is replaced due to a failure or a plan, the signal output level is reset by manual operation of the attenuator 28.

Further, introduction of a network is effective as a technique for reducing the number of racks. Some of the relay racks 11 are replaced with a higher level network (see, for example, Patent Document 4), or a transmission rack 12 is introduced with an internal network. Yes (see, for example, Patent Document 5). In the latter case, the reliability of network transmission can be sufficiently improved, and the amplification function is left in each transmitter among the main two functions of the transmitter 20, but the logical operation functions can be concentrated in a small number of logic units. As a result, a large number of transmitters can be miniaturized, and as a result, the scale of the transmission rack 12 can be reduced.
In addition, in general, the realization of a signal processing circuit such as an amplitude modulation circuit with a programmable digital circuit is also increasing due to the downsizing and high functionality of a digital signal processor (DSP) equipped with a high-speed multiplier. ing.

Edited by the Japan Railway Electrical Engineering Association, "Signal Overview for Railway Electrical Technology ATS / ATC", revised on July 28, 2001, p. 119-137 Edited by Daido Signal Co., Ltd. “DAIDO 79” “Digital ATC Ground Device”, published in June 1994, p. 14-17 Edited by Daido Signal Co., Ltd. “DAIDO 82” “Digital ATC / TD Ground Device”, September 1995, p. 14-17 JP 2000-168554 A JP 2003-244156 A

FIG. 8 is a block diagram of an ATC ground device that is assumed when such a technique is incorporated to improve the conventional device.
The virtual device of FIG. 8 is different from the above-described conventional device of FIG. 7A in that the relay rack 11 is replaced with a higher level network 15 (NET), and the transmission rack 12 is connected to the on-board network 31 (LAN ), A point where a large number of transmitters 20 are divided into a small number of logic units 32 and a large number of transmitters 33, and most of the transmission signal generating circuit 24 are 25 to 28. Is realized by the digital signal processor 35 (DSP). Although illustration and detailed description are omitted, even the PWM circuit 29 can be replaced with a DSP or a programmable logic device.

  The upper network 15 may replace all of the relay racks 11 or may replace only part of the relay racks 11 and coexist with the relay racks 11 after the scale reduction, and the condition is transferred from the external interlocking device 10 to the logic unit 32 of the transmission rack 30. And the like, and information such as a display lock is transmitted from the logic unit 32 to a higher-level device or the like. The intra-building network 31 is used by the logic unit 32 to perform communication by cyclic transmission to each of the transmitters 33. Specifically, the logic unit 32 polls each of the transmitters 33 at a constant period to speed up the transmission. A transmission signal creation instruction such as control information is sent out, and the transmitter 33 is used to return a status or the like accordingly. These networks 15 and 31 can be constituted by general-purpose switching hubs and cables, but it is important to ensure fail-safe transmission (see, for example, Patent Document 5).

  The logic unit 32 is a program in which a transmission signal generation instruction such as speed control information is ported from the above-mentioned many computers 21 to one fail-safe computer, and performs logic operations related to railway signal security. It has become. Input / output associated with the logical operation is performed via the host network 15 or the overhead network 31, and a transmission program for that purpose is installed. A self-diagnosis program similar to that described above is also installed. Similarly to the transmitter 20, the logic unit 32 is also integrated into a detachable unit that can be easily replaced. Such a logic unit 32 is mounted on the transmission rack 30 and performs logical operations related to the signal security of the railway, and communicates with each of the transmitters 33 via the overhead network 31.

  In addition to the transmission level checking circuit 22, the power amplification circuit 23, and the transmission signal creation circuit 24 remaining in the transmitter 33, a smaller fail-safe microprocessor 34 (MPU) than the computer 21 is mounted. In this case, a transfer program is installed, a transmission signal generation instruction transmitted from the logic unit 32 via the intra-building network 31 is delivered to the transmission signal generation circuit 24, and the detection result of the transmission level check circuit 22 is The data is reported to the logic unit 32 via the intra-building network 31.

  In addition, a digital signal processor 35 and a simple ATT setting unit 36 are introduced into the transmitter 33, and the signal wave generation circuit 25, the carrier wave generation circuit 26, the modulation circuit 27, and the attenuator 28 in the transmission signal generation circuit 24. Are embodied by a program of the digital signal processor 35, and are a signal wave generation function (25), a carrier wave generation function (26), an amplitude modulation function (27), and an attenuator equivalent function (28), respectively. Manual adjustment of the attenuator equivalent function (28) can be performed by operating the ATT setter 36. A D / A conversion circuit (not shown) may be provided between the digital signal processor 35 and the pulse width modulation circuit 29.

These improvements will lead to downsizing of equipment and cost reduction while maintaining the functions of the ATC ground equipment.
In addition, both the transmitter 33 and the logic unit 32 are redundant systems for improving the operation rate, and when the active system is stopped or failed, a standby system works instead. The logic unit 32 and the transmitter 33 of the transmission rack 30 can be exchanged.

However, in such an ATC ground device, the attenuator 28 is programmed and softwareized, but the function and usage of the attenuator equivalent function (28) remain the same as before, and the setting state is the non-volatile state of the transmitter 33. It is kept only in memory.
For this reason, when the transmitter 33 is replaced due to a failure or a plan, it is still necessary to redo the signal output level setting by the attenuator equivalent function (28) by manual operation of the ATT setting unit 36. Even with the transmitter 33 that has been adjusted in advance by the inspection equipment or the like, the setting state must be adapted to the conditions of the mounting location, so resetting of the signal output level is inevitable.
However, manually setting the signal output level without error is time-consuming and labor intensive, and the worker's mental burden is heavy.

Therefore, in order to automate the adjustment of the attenuator equivalent function (28) of the transmitter 33, the setting state of the attenuator equivalent function (28) is stored and held as rewritable digital data attenuator setting information, and the transmitter 33 before replacement is also stored. It is also conceivable to introduce a setting support device that uploads attenuator setting information related to the attenuator equivalent function (28) and downloads it to the attenuator equivalent function (28) of the transmitter 33 after replacement.
However, the introduction of such a support device is not only accompanied by a development burden, but also when the support device is not available or when the transmitter becomes unable to cooperate with the setting support device, the support device is useful. Absent. Therefore, it is desirable to be able to automatically transfer the attenuator setting information of the transmitter before replacement to the transmitter after replacement without any special support device.

The transmitter that uses the attenuator setting information and the logic unit that does not use the attenuator setting information are mounted on the same transmission rack and constantly communicate with each other, and their operating rate becomes extremely high due to fail-safety and duplication. In view of the above, it came to mind that the logical part is used for backup and recovery of attenuator setting information.
Therefore, the logic unit and the attenuator setting information related to the attenuator equivalent function of the transmitter before replacement are automatically set to the attenuator equivalent function of the transmitter after replacement with the assistance of the logic unit that is continuously mounted on the transmission rack. Improving the transmitter is a technical challenge.

The transmission rack mounting device of the railway signal security facility of the present invention (Solution 1) was created to solve such a problem,
A transmission rack equipped with a network in the rack, a plurality of transmitters mounted on the transmission rack and transmitting signals to a track circuit, and a logical operation related to signal security of the railway mounted on the transmission rack and A transmission rack mounting device of a railroad signal security facility provided with a logic unit that communicates with each of the transmitters via an on-board network,
The transmitter and the logic unit are improved as follows.

That is, each of the transmitters includes a transmission signal generating circuit including a digital circuit in which an attenuator equivalent function for setting a signal output level is incorporated in addition to a modulation function for transmitting signal modulation, and an attenuator setting related to the attenuator equivalent function Non-volatile memory on the transmitter side for storing information, attenuator adjustment means for updating the attenuator setting information when adjusting the attenuator equivalent function, and receiving the update of the attenuator setting information from the logic unit immediately after startup Attenuator setting means for performing,
The logic unit is a non-volatile memory on the logic unit side for storing and holding the attenuator setting information of each transmitter, means for transmitting the attenuator setting information to each of the transmitters, and attenuator adjustment of the transmitters. Means for updating attenuator setting information corresponding to the attenuator.
Here, the attenuator-equivalent function is a digital circuit that implements a function equivalent to that of a general variable attenuator composed of individual elements instead of an individual element. For example, in a wired logic digital circuit, The attenuator function body embodied in a digital circuit by a program or a program is applicable.

The railroad signal security equipment transmission rack mounting device of the present invention (solution 2) is the railroad signal security equipment transmission rack mounting device of the above solution 1.
A logic unit identification setter capable of setting identification information of the logic unit is provided in the transmission rack;
The logic unit also stores and holds logic unit identification information in the logic unit side non-volatile memory, and immediately after startup, the identification information set in the logic unit identification setter and the logic unit side nonvolatile memory The logical unit identification information stored and held in the memory, and if the result does not match, the attenuator setting information of each transmitter in the logical unit side non-volatile memory is updated, and the logical unit side The logical part identification information stored and held in the nonvolatile memory is updated with the identification information set in the logical part identification setter.

Furthermore, the transmission rack mounting device of the railway signal security facility of the present invention (Solution means 3) is the transmission rack mounting device of the railroad signal security equipment of the above solution means 2,
A transmitter identification setter that can set identification information of the transmitter is divided into a plurality in correspondence with each of the transmitters, and is provided on the transmission rack,
The logic unit stores and holds transmitter identification information of each transmitter in the logic unit side non-volatile memory, and transmits the identification information to each of the transmitters along with transmission of attenuator setting information. And
The transmitter also stores transmitter identification information in the transmitter-side non-volatile memory, and receives the attenuator setting information stored in the transmitter-side non-volatile memory immediately after startup from the logic unit. When updating, the transmitter identification information received from the logic unit is compared with the transmitter identification information stored in the transmitter-side non-volatile memory, and the update is refrained while the result does not match. It is like that.

In such a transmission rack mounting device of the railway signal security facility of the present invention (Solution 1), if a normal logic unit and a transmitter are mounted on the transmission rack, communication via the on-board network is possible. As the logic unit and the transmitter cooperate with each other, a logic operation related to the signal security of the railway is performed, and a transmission signal is created according to the operation result, and the signal is transmitted to the track circuit. Signal security is properly performed.
In addition to extracting the logic operation function from the transmitter and consolidating it into the logic unit, the transmission signal generation circuit of many transmitters has been digitized, thereby reducing the scale of the transmission rack and the transmitter. Signal output level setting can be automated by transmitting attenuator setting information to an attenuator-equivalent function.

Furthermore, non-volatile memory is provided in both the transmitter and the logic unit, and the attenuator setting information related to the adjusted attenuator equivalent function is stored and held in the transmitter as well as in the logic unit. Immediately after start-up, the attenuator setting information stored in the non-volatile memory of the transmitter is updated with the attenuator setting information stored in the non-volatile memory of the logic unit. If the transmitter of the same transmitter is replaced while the transmitter is being mounted on the transmitter, the attenuator setting information of the transmitter before replacement is automatically changed with the assistance of the logic unit. The equivalent function will be set.
Therefore, according to the present invention, even if there is no special support device, the transmission rack mounting of the railroad signal security equipment in which the attenuator setting information related to the attenuator equivalent function of the transmitter before replacement is automatically transferred to the transmitter after replacement An apparatus can be realized.

Further, in the transmission rack mounting device of the railway signal security equipment of the present invention (Solution means 2), a logic section identification setter is provided on the transmission rack, and the logic section is transmitted to its nonvolatile memory. When not only the attenuator setting information but also the logic part identification information is stored and held, and the expansion process such as comparison of the identification information is also performed immediately after startup, the logic part is replaced. Since the logical unit identification information in the non-volatile memory of the unit does not match the identification information in the identification unit for the logical unit of the transmission rack, the setting information of each transmitter in the non-volatile memory is updated in the replaced logical unit At the same time, the logical part identification information in the nonvolatile memory is updated with the identification information in the logical part identification setter.
Therefore, according to the present invention, there is provided a transmission rack mounting device for a railway signal security facility in which the attenuator setting information related to the function corresponding to the attenuator of the transmitter is automatically backed up and copied to the replaced logic unit without a special support device or the like. Can be realized.

Furthermore, in the transmission rack mounting device of the railway signal security equipment of the present invention (Solution means 3), in addition to the identification setting unit for the logic unit, the identification setting unit for the transmitter is provided on the transmission rack, and the logic unit is also provided. As for the transmitters, when storing the attenuator setting information of the transmitters in the respective non-volatile memories or when transmitting them to the other party via the internal network, the transmitter identification information is accompanied. Immediately after start-up, by performing extended processing such as comparison of identification information and renewal of setting information, when the logic unit and transmitter start up in succession in a short time because power was turned on in units of frames For example, even if the logic section transmits unupdated undesired undesired attenuator setting information to the transmitter, the transmitter identification information transmitted along with it is received and received. Since a transmitter identification information in the nonvolatile memory of the transmitter does not match, the occurrence of undesirable situations that resetting the signal output level can be reliably prevented by the attenuator setting information transmitter wrong.
Therefore, according to the present invention, it is possible to realize a transmission rack mounting device for a railway signal security facility in which automatic backup and automatic recovery relating to transmitter attenuator setting information are reliably performed.

With respect to such a transmission rack mounting device for a railway signal security facility of the present invention, specific modes for carrying out this will be described with reference to the following first to third embodiments.
The embodiment 1 shown in FIGS. 1 and 2 embodies the above-described solution 1 (claim 1 at the beginning of the application), and the embodiment 2 shown in FIGS. The embodiment 3 shown in FIGS. 5 to 6 embodies the above-described solution 3 (claim 3 at the beginning of the application).
In the drawings, the same components as those of the conventional device and the virtual device are denoted by the same reference numerals, and therefore, the repeated description will be omitted, and the following description will focus on the differences.

  A specific configuration of the first embodiment of the “railway signal security equipment transmission rack mounting device” of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an ATC ground device embodying a railway signal security facility including the transmission rack mounting device 30 + 40 + 50 of the present invention, and FIG. 2 (a) is a data structure of ATT setting information 42, 52. FIG. 4B is a communication diagram between the logic unit 40 and the transmitter 50 performed via the intra-building network 31.

The ATC ground device of FIG. 1 is different from the virtual device of FIG. 8 described above in that the logic unit 32 is a logic unit 40 including a non-volatile memory 41 (logic unit side non-volatile memory) such as a flash memory. The transmitter 33 is a transmitter 50 including a nonvolatile memory 51 (transmitter-side nonvolatile memory) such as a flash memory.
In addition, when distinguishing each of the dual logic units 40 (see FIG. 2), a branch number is added to the reference numeral “40” to indicate the logic units 40-1 and 40-2. In addition, since n duplex transmitters 50 (n sets, n × 2, n is an integer of 2 or more) are provided, when the i-th transmitter 50 is clearly indicated, the transmitter 50 -I.

  The transmitter 50 (see FIG. 1) stores and holds the ATT setting information 52 in the nonvolatile memory 51 (primary storage / original data of the attenuator setting information). The ATT setting information 52 is attenuator setting information related to the attenuator equivalent function (28) of the corresponding transmitter 50, and the signal output level setting when the attenuator adjustment is performed for each transmitter 50 to set the signal output level. The state is represented by a set value (ATT set value) to the attenuator. More specifically (see FIG. 2A), the ATT setting information 52 of the transmitter 50-i has an ATT setting set or to be set in the attenuator equivalent function (28) of the transmitter 50-i. The value 50-i is held. The ATT set value 50-i is, for example, an 8-bit or 12-bit digital value, and may be a fixed-point format or a floating-point format as long as it can be calculated and processed by the digital signal processor 35.

  The logic unit 40 (see FIG. 1) stores and holds the ATT setting information 42 in the nonvolatile memory 41 (secondary storage / backup data of attenuator setting information). The ATT setting information 42 is a collection of attenuator setting information related to the attenuator equivalent function (28) of each transmitter 50. More specifically (see FIG. 2 (a)), for each transmitter 50-i (i is from 1 to n), the ATT setting value 50-i of the ATT setting information 52 of the transmitter 50-i is included in the frame. Collected by communication via the network 31 and arranged in a one-dimensional array or the like. When the logic unit 40 (see FIG. 2B) polls each transmitter 50 at a constant period and sends a transmission signal creation instruction such as speed control information, the part of the transmission partner in the ATT setting information 42 is combined. Send to. For example, the ATT setting value 50-i corresponding to the transmitter 50-i in the ATT setting information 42 is transmitted to the transmitter 50-i.

  In the transmitter 50 (see FIG. 1), the connection destination of the ATT setting device 36 is changed to the microprocessor 34 instead of the digital signal processor 35, and the attenuator equivalent function (28) of the digital signal processor 35 is the ATT setting device 36. The attenuator setting information is input from the microprocessor 34. Further, the microprocessor 34 of the transmitter 50 is expanded in function to include the ATT setting information 52 in the reply when returning a status or the like in response to polling from the logic unit 40. Further, the following ATT adjustment program 53 (attenuator adjustment means) and ATT setting program 54 (attenuator setting means) are additionally installed in the microprocessor 34.

  The ATT adjustment program 53 updates the ATT setting information 52 according to the adjustment at the time of adjustment of the attenuator. Specifically, the ATT adjustment program 36 monitors the ATT setter 36 and the ATT setter 36 must be operated. However, when the ATT setter 36 is manually operated, the ATT setting value of the ATT setting information 52 is increased or decreased according to the operation direction or the operation amount. Although not essential, when attenuator adjustment is performed, the fact is set in a notification flag to the ATT setting program 54 or the logic unit 40 for quick and reliable processing.

  The ATT setting program 54 reads data from the nonvolatile memory 51 and sends data to the digital signal processor 35 to set the ATT setting information 52 to the attenuator equivalent function (28). When the transmitter 50 is started up when the transmitter 50 is reset or the transmitter 50 is reset, when an instruction or the like transmitted from the logic unit 40 is received for the first time after the start-up, The ATT setting information 52 is updated by extracting the ATT setting information and overwriting it on the ATT setting information 52 of the nonvolatile memory 51.

  Further, when it is determined that the attenuator adjustment has been performed by any one of the plurality of transmitters 50, the logic unit 40 includes the ATT of the corresponding transmitter 50 included in the reply from the transmitter 50 together with the status and the like. The ATT setting information 42 is updated by extracting the setting information and overwriting the corresponding portion of the ATT setting information 42 in the nonvolatile memory 41. Whether or not the attenuator is adjusted is determined by the logic unit 40 by monitoring the ATT setting information being reported, which is repeated from the transmitter 50 to the logic unit 40 at a constant cycle, and once the value has changed, several more times. This is ensured by setting “Yes” for the first time when there is no change for a predetermined number of times. In addition, when it is clearly notified from the transmitter 50 by a flag or the like, it may be determined immediately.

The use mode and operation of the ATC ground device (railway signal security equipment including the transmission rack mounting device 30 + 40 + 50) of the first embodiment will be described with reference to the drawings.
FIG. 2B is a communication diagram between the logic units 40-1 and 40-2 and the transmitter 50-i via the intra-building network 31.
The difference between the conventional apparatus and the virtual apparatus is backup and recovery of the ATT setting information, which will be described in detail.

  In the steady state, the ATT setting information 52 of the transmitter 50 is correctly backed up to the ATT setting information 42 of the logic unit 40. Therefore, the polling and transmission from the logic units 40-1 and 40-2 to the transmitter 50-i are performed. At the time of a response from the device 50-i, the transmitter 50-i having the same value is exchanged. Then, it is assumed that only the transmitter 50-i is replaced without turning off the power of the transmission rack 30. That is, the transmitter 50-i previously mounted on the transmission rack 30 is removed from the transmission rack 30, and another transmitter 50-i is attached thereto and turned on. The transmitter 50-i after this exchange has been checked for operation and attenuator adjustment in advance by inspection equipment or the like, but its ATT set value 50-i is suitable for the inspection equipment etc. ) And so on.

However, in the transmitter 50-i after replacement, ATT setting information is automatically downloaded immediately after startup. That is, when the ATT set value 50-i is transmitted from the logic units 40-1 and 40-2 to the transmitter 50-i, the replaced transmitter 50-i receives the ATT set value received immediately after startup. 50-i is extracted by the ATT setting program 54, and the ATT setting value 50-i is overwritten on the ATT setting information 52 of the nonvolatile memory 51 by the ATT setting program 54, and the attenuator equivalent function (28). Is also set.
Thus, since the ATT setting information 52 is automatically recovered in the transmitter 50 after replacement, the signal output level of the transmitter 50 after replacement is automatically set to a state suitable for the track circuit or the like.

  Further, when the signal output level setting of the transmitter 50-i is redone due to the track 14 or cable repair work, the ATT setting unit 36 of the transmitter 50-i is manually operated to adjust the attenuator. In the transmitter 50-i, when the ATT setting unit 36 is operated, the ATT setting information 52 is updated to a new value by the ATT adjustment program 53, and the ATT setting information 52 is updated by the ATT setting program 54. The value 50-i is set in the attenuator equivalent function (28). Thus, even if the attenuator adjustment for setting the signal output level is manual, it is easily performed.

Then, the ATT set value 50-i is automatically uploaded to the logic units 40-1 and 40-2. That is, the ATT set value 50-i is transmitted from the transmitter 50-i to the logic units 40-1 and 40-2, and it is determined that the attenuator adjustment has been performed in the transmitter 50-i. As understood from 40-2, in the logic units 40-1 and 40-2, the ATT setting value 50-i is overwritten on the corresponding part of the ATT setting information 42 of the nonvolatile memory 41.
In this way, backup of the ATT setting information is automatically and accurately performed.

  Furthermore, when any of the dual logic units 40, for example, the logic unit 40-1 detects an abnormality through self-diagnosis, the logic unit 40-2 continues to transmit the ATT set value 50-i. −1 pauses transmission of the ATT set value 50-i, or transmits an invalid value, for example, a value of all bits “1”. Therefore, when one of the logic units 40 is out of order, even if the transmitter 50-i has been replaced without noticing the failure, the transmitter 50-i is connected to the normal logic unit 40-2. Since only the received correct ATT setting value 50-i is downloaded, the transmitter 50-i does not download the incorrect ATT setting value 50-i. When the logic unit 40-1 recovers from the abnormality, the ATT setting information of each transmitter 50 is automatically uploaded to the logic unit 40-1.

  A specific configuration of the second embodiment of the “railway signal security equipment transmission rack mounting device” of the present invention will be described with reference to the drawings. FIG. 3 is a block diagram of an ATC ground device embodying a railway signal security facility including the transmission rack mounting device 60 + 63 + 50 of the present invention. FIG. 4A is a data structure of the ATT setting information 52, 62. FIG. 4B is a communication diagram between the logic unit 63 and the transmitter 50 performed via the intra-building network 31.

This ATC ground device is different from that of the first embodiment described above in that the logic unit 40 and the ATT setting information 42 are expanded into the logic unit 63 and the ATT setting information 62, and the transmission rack 30 is logically different. The transmission rack 60 is equipped with an identification setting device 61 for the unit 63.
Two identification setting units 61 (identification setting units for the logic unit) are provided corresponding to each of the dual logic units 63, each consisting of, for example, a dip switch having an appropriate number of bits, and set in the switch state. The value is sent as identification information to the corresponding logic unit 63.

  The ATT setting information 62 of the logic unit 63 is expanded to include the identification information set in the identification setting unit 61 in addition to the information held in the ATT setting information 52. What is included in the ATT setting information 62 and stored in the nonvolatile memory 41 in order to distinguish it from the raw identification information set in the identification setting device 61 is referred to as logical unit identification information. A specific value of the logical part identification information is a logical part identification value, and the identification information fetched from the mutual identification setting unit 61 is the logical part identification value in the ATT setting information 62 in the nonvolatile memory 41 of the logical part 63-1. 63-1 is stored and held together with the ATT set value 50-i and the like (see FIG. 4A), and the ATT setting information 62 in the non-volatile memory 41 of the logic unit 63-2 includes the mutual identification setter. The identification information fetched from 61 becomes a logical part identification value and is stored and held together with the ATT set value 50-i and the like.

  The logic unit 63 operates in the same manner as the logic unit 40 in a steady state, but is expanded so as to perform the following check immediately after startup. That is, the logic unit 63 immediately after startup and before performing a steady operation, the identification information set in the identification setter 61 and the logic unit identification information stored and held in the ATT setting information 62 of the nonvolatile memory 41 If the result does not match, the update processing related to the setting information of each transmitter 50 in the nonvolatile memory 41 is performed, and the logical unit identification information held in the ATT setting information 62 of the nonvolatile memory 41 Is updated with the identification information of the identification setter 61.

  More specifically, the logical part identification value 63-1 includes raw identification information (current identification information, identification information after start-up) set in the corresponding identification setting unit 61 and the nonvolatile memory 41. The logical unit identification value 63-1 (past identification information, identification information before start-up) included in the stored ATT setting information 62 is compared. If the comparison result is inconsistent, the next two updates are completed, and then the operation moves to a steady operation. In the previous update of the two updates, the ATT set value 50-i (i is from 1 to n) in the nonvolatile memory 41 is updated by the upload procedure described above. In the later update of the two updates, the identification information set in the corresponding identification setter 61 is input, and the logical part identification value in the ATT setting information 62 stored in the nonvolatile memory 41 is stored. The logical part identification information is updated by overwriting on 63-1.

  The use mode and operation of the ATC ground device (railway signal security equipment including the transmission rack mounting device) of the second embodiment will be described with reference to the drawings. FIG. 4B is a communication diagram between the logic unit 63 and the transmitter 50 via the intra-building network 31.

  ATT setting information download when the transmitter 50-i is replaced, ATT setting information upload when the attenuator adjustment of the transmitter 50-i is manually performed, and ATT setting when the logic unit 63-1 detects an abnormality Since the information upload is the same as in the first embodiment described above, the operation when the logic unit 63-1 is started up or replaced will be described below.

When the logic unit 63-1 is started up without being replaced, the ATT setting information 62 of the nonvolatile memory 41 of the logic unit 63-1 is the same as that before the start-up, and the logical unit identification value 63-1 is logical Since it coincides with the identification information set in the mutual identification setter 61 of the unit 63-1, in this case, the steady operation is immediately resumed without any inconvenience.
On the other hand, when the logic unit 63-1 is replaced and started up, the ATT setting information 62 in the nonvolatile memory 41 of the logic unit 63-1 cannot be expected to be the same as that before the start-up. The logical part identification value 63-1 is different.

  Then, in the replaced logic unit 63-1, the logic unit identification value 63-1 (identification information before replacement) of the ATT setting information 62 of the non-volatile memory 41 and the identification information of the corresponding identification setter 61 (after replacement) Since the comparison result with the identification information does not match, the transmission of the ATT setting value 50-i of the ATT setting information 62 is delayed, or an invalid value, for example, the value of all the bits “1” is transmitted, and the ATT setting value 50-i is uploaded. That is, when the ATT set value 50-i is transmitted from the transmitter 50-i, the update process for overwriting the ATT setting value 62 in the corresponding portion of the ATT setting information 62 of the nonvolatile memory 41 is performed by all the transmitters 50-i (i Is repeated for 1 to n).

Thus, even after the replacement of the logic unit 63, the backup of the ATT setting information is automatically and accurately performed.
Then, in the logical part identification value 63-1 that has been backed up, the identification information set in the corresponding identification setting unit 61 is overwritten with the logical part identification value 63-1 in the ATT setting information 62 of the nonvolatile memory 41. The
Thus, the logical part identification information of the ATT setting information 62 of the nonvolatile memory 41 is also automatically updated to an appropriate value, and thereafter the steady operation is resumed without any inconvenience.

  A specific configuration of the third embodiment of the “railway signal security equipment transmission rack mounting device” of the present invention will be described with reference to the drawings. FIG. 5 is a block configuration diagram of an ATC ground device embodying a railway signal security facility including the transmission rack mounting device 70 + 72 + 75 of the present invention, and FIG. 6 (a) is a data structure of ATT setting information 73 and 76. FIG. 4B is a communication diagram between the logic unit 75 and the transmitter 72 performed via the intra-building network 31.

This ATC ground device is different from that of the second embodiment described above in that the logic unit 63 and the ATT setting information 62 are expanded to become the logic unit 75 and the ATT setting information 76, and the transmitter 65 and the ATT. The setting program 54 is expanded to become a transmitter 72 and an ATT setting program 74, and the transmission rack 60 is a transmission rack 70 equipped with an identification setting device 71 for the transmitter 72.
A large number of identification setting units 71 (identification setting units for transmitters) are provided corresponding to each of a large number of transmitters 72, each of which is composed of, for example, a dip switch having an appropriate number of bits, and the values set in the switch state are used as identification information. Are sent to the corresponding transmitter 72.

  The ATT setting information 73 in the nonvolatile memory 51 of the transmitter 72 is expanded to include the identification information set in the identification setting unit 71 in addition to the information held in the ATT setting information 52. In order to distinguish from the raw identification information set in the identification setting device 71, the information included in the ATT setting information 73 and stored in the nonvolatile memory 51 is called transmitter identification information. A specific value of the transmitter identification information is a transmitter identification value, and the ATT setting information 73 in the nonvolatile memory 51 of the transmitter 72-i in all the transmitters 72-i (i is 1 to n). The identification information associated with the identification setting unit 71, that is, the identification setting unit 71 of the other party, is stored and held together with the ATT setting value 72-i and the like as a transmitter identification value 72-i. (See FIG. 6A).

  The ATT setting information 76 of the non-volatile memory 41 of the logic unit 75 is expanded to include the ATT setting information 73 of all the transmitters 72 in addition to the identification information set in the identification setting device 61. More specifically, in the ATT setting information 76 in the non-volatile memory 41 of the logic unit 75-1, the identification information fetched from the corresponding identification setting unit 61 becomes the logic unit identification value 75-1 and the transmitter identification value 72. -I and ATT set value 72-i are stored and held together with a series of set data (see FIG. 6A), and the ATT setting information 76 in the nonvolatile memory 41 of the logic unit 75-2 includes the identification setting of the other party. The identification information fetched from the device 61 becomes a logical part identification value, and is stored and held together with a series of set data of the transmitter identification value 72-i and the ATT set value 72-i.

  The logic unit 75 (see FIG. 6 (b)) not only transmits the attenuator setting information but also sets the setting when polling each transmitter 72 at a fixed period and sending a transmission signal creation instruction such as speed control information. Along with the information transmission, the self-identification information is transmitted to each transmitter 72. Specifically, the set data for the transmission partner in the ATT setting information 76 is transmitted together with the transmission signal creation instruction. For example, the transmitter identification value 72-i and the ATT setting value 72-i corresponding to the transmitter 72-i in the ATT setting information 76 are transmitted to the transmitter 72-i.

When the transmitter 72 returns a status or the like in response to polling from the logic unit 75, the ATT setting information 73, that is, the set data of the transmitter identification value 72-i and the ATT setting value 72-i is included in the response. The functionality has been extended.
When the ATT setting program 74 (attenuator setting means) receives and updates the attenuator setting information in the non-volatile memory 51 from the logic unit 75 immediately after startup, the ATT setting program 74 (attenuator setting means) The transmitter identification information received from the unit 75 to the transmitter 72 is compared with the transmitter identification information stored in the nonvolatile memory 51 and updated while the result does not match. To refrain from.

  More specifically, immediately after the transmitter 72-i is started up, the ATT setting program 74 of the transmitter 72-i transmits the transmission signal from the logic unit 75 to the transmitter 72-i and the like. The device identification value 72-i is extracted and compared with the transmitter identification value 72-i of the ATT setting information 73 of the nonvolatile memory 51, and the ATT setting of the ATT setting information 73 until the comparison result matches. The value 72-i is not updated, and the ATT setting value 72-i extracted from the transmission signal creation instruction or the like is not changed until the comparison result is matched, and the ATT setting value 73 of the ATT setting information 73 of the nonvolatile memory 51 72-i is overwritten.

  With respect to the ATC ground device (railway signal security equipment including the transmission rack mounting device) of the third embodiment, its usage and operation will be described with reference to the drawings. FIG. 6B is a communication diagram between the logic unit 75 and the transmitter 72 via the intra-building network 31.

  ATT setting information download when the transmitter 72-i is replaced, ATT setting information upload when the attenuator adjustment of the transmitter 72-i is performed manually, and ATT setting when the logic unit 75-1 detects an abnormality Since the information upload, the operation when only the logic unit 75-1 is started up or exchanged, etc. are the same as those in the first and second embodiments, the logic unit 75 is operated by operating the power supply of the transmission rack 70. After both the transmitter 72 and the transmitter 72 have stopped supplying power, both the logic unit 75-1 and the logic unit 75-2 are exchanged, and then the power supply of the transmitter 70 is operated to supply power to both the logic unit 75 and the transmitter 72. The operation when restarting will be described.

  In the replaced logical unit 75-1, the logical unit identification value 75-1 (identification information before replacement) of the ATT setting information 76 of the nonvolatile memory 41 and the identification information (identification information after replacement) of the opposite identification setter 61 are displayed. ), The transmission of the ATT setting value 72-i of the ATT setting information 76 should be matched, but a restart is performed with a malfunction due to a power-on failure or the like. If the logical part identification value 75-1 of the ATT setting information 76 in the nonvolatile memory 41 is updated before the entire ATT setting information is correctly uploaded, the incorrect ATT setting information is transmitted to the transmitter 72. -I will be sent to. The same applies to the replaced logic unit 75-2.

However, in the improved transmitter 72-i, even if the ATT setting information is transmitted from the logic unit 75-1 immediately after the start-up, the ATT setting value 72-i immediately becomes the ATT setting information of the nonvolatile memory 51. Rather than being written in the information 73, first, the ATT set value 72-i transmitted as a pair with the ATT set value 72-i of the nonvolatile memory 51 is compared with the ATT set value 72-i. When the comparison results do not match, downloading to the ATT setting information 73 is refrained, so that an undesirable situation in which the transmitter 72-i downloads incorrect ATT setting information is avoided.
On the other hand, from the transmitter 72-i to the logic units 75-1 and 75-2, the correct ATT setting information 73 stored in the nonvolatile memory 51 by the transmitter 72-i that has not been exchanged is displayed as the status and the like. Will be replied together.

The transmission of the erroneous ATT setting information from the logic unit 75 to the transmitter 72 and the return of the correct ATT setting information from the transmitter 72 to the logic unit 75 are described above for determining whether or not the attenuator adjustment is performed by the logic unit 75. When repeated a predetermined number of times or more, the logic units 75-1 and 75-2 perform transmitter identification in the ATT setting information 73 of the transmitter 72-i in the same manner as when the attenuator adjustment is performed by the transmitter 72-i. The value 72-i and the ATT setting value 72-i, that is, the correct ATT setting information of the transmitter 72-i are automatically uploaded to the logic units 75-1 and 75-2.
In this way, even in the rare case where a malfunction occurs in the replacement of the logic units 75-1 and 75-2, the backup of the ATT setting information is automatically and accurately performed.

  Further, in the transmission rack mounting apparatus of the railway signal security facility of the third embodiment, if the identification information of the logic unit is the same between the operating facility and the inspection facility, the logic unit is replaced and the inspection facility is installed. Even when the ATT setting information is transmitted, the transmitter identification of the ATT setting information does not match, so that the incorrect ATT setting information is not downloaded. On the other hand, if there is no transmitter identification value, even incorrect ATT setting information may be downloaded.

[Others]
The hardware that implements the attenuator equivalent function (28) and the like is not limited to the digital signal processor described above, and may be any programmable digital circuit, such as a microprocessor or a programmable logic array.
In the above embodiment, when the ATT setting information 42 is transmitted from the logic unit 40 to the transmitter 50, only the corresponding ATT setting value 50-i is transmitted. May be transmitted, and the transmitter 50 may extract the corresponding part.

  The present invention is not limited to the above-described ATC (automatic train control device) ground device, but can be applied to any signal security device that transmits a signal to the track circuit. For example, the ATS (automatic train stop device) ), ATO (automatic train operation device), TD (train detection device), and the like.

It is a block diagram which shows the structure of ATC ground apparatus (Railway signal security equipment including a transmission rack mounting apparatus) about Example 1 of this invention. (A) shows the data structure of ATT setting information, and (b) is a communication diagram in the intranet. It is a block diagram of an ATC ground device about Example 2 of the present invention. (A) shows the data structure of ATT setting information, and (b) is a communication diagram in the intranet. It is a block diagram of an ATC ground device about Example 3 of the present invention. (A) shows the data structure of ATT setting information, and (b) is a communication diagram in the intranet. (A) is a general | schematic block diagram, (b) is a detailed block diagram of a transmitter principal part, (c)-(f) is a waveform example of a signal about the conventional ATC ground apparatus. It is a block diagram of an improved ATC ground device.

Explanation of symbols

10 ... interlocking device (higher-order device), 11 ... relay rack,
12 ... Transmission rack (transmission / reception rack), 13 ... Transformer rack (matching transformer rack, security rack),
14 ... orbit (orbit circuit), 15 ... upper network (NET),
20 ... Transmitter (transmitter / receiver), 21 ... Computer (CPU),
22 ... Transmission level checking circuit (LD), 23 ... Power amplification circuit (PA),
24 ... transmission signal generation circuit (signal generation), 25 ... signal wave generation circuit (signal),
26 ... carrier wave generation circuit (carrier wave), 27 ... modulation circuit (modulation),
28 ... Attenuator (ATT), 29 ... Pulse width modulation circuit (PWM),
30 ... Transmission rack (transmission / reception rack), 31 ... Internal network (LAN),
32 ... Logic part (transmission rack mounting equipment for railway signal security equipment),
33 ... Transmitter (transmitter / receiver, transmission rack mounting device for railway signal security equipment),
34 ... Microprocessor (MPU),
35 ... Digital signal processor (DSP), 36 ... ATT setter,
40. Logic part (transmission rack mounting equipment for railway signal security equipment),
41... Non-volatile memory (in the logic part), 42 ... ATT setting information (logic part storage),
50: Transmitter (transmitter / receiver, transmission rack mounting device),
51 ... Non-volatile memory (within transmitter), 52 ... ATT setting information (transmitter storage),
53 ... ATT adjustment program, 54 ... ATT setting program,
60 ... transmission rack (transmission / reception rack), 61 ... identification setter (for logic unit),
62 ... ATT setting information (logic storage), 63 ... logic (transmission rack mounting device),
70: Transmission rack (transmission / reception rack), 71: Identification setter (for transmitter),
72 ... Transmitter (transmitter / receiver, transmission rack mounting device),
73 ... ATT setting information (transmitter storage), 74 ... ATT setting program,
75 ... logic unit (transmission rack mounting device), 76 ... ATT setting information (logic unit storage)

Claims (4)

A transmission rack equipped with a network in the rack, a plurality of transmitters mounted on the transmission rack and transmitting signals to a track circuit, and a logical operation related to signal security of the railway mounted on the transmission rack and A transmission rack mounting device of a railroad signal security facility provided with a logic unit that communicates with each of the transmitters via an on-board network,
Each of the transmitters includes a transmission signal generation circuit including a digital circuit in which a signal output level setting attenuator equivalent function is incorporated in addition to a modulation function for transmission signal modulation, and attenuator setting information related to the attenuator equivalent function. Transmitter-side non-volatile memory to be stored, attenuator adjustment means for updating the attenuator setting information when adjusting the attenuator equivalent function, and attenuator for receiving the update of the attenuator setting information from the logic unit immediately after startup And setting means,
The logic unit is a non-volatile memory on the logic unit side for storing and holding the attenuator setting information of each transmitter, means for transmitting the attenuator setting information to each of the transmitters, and attenuator adjustment of the transmitters. And a means for updating attenuator setting information corresponding to the device. A transmission rack mounting device for a railway signal security facility. A logic unit identification setter capable of setting identification information of the logic unit is provided in the transmission rack;
The logic unit also stores and holds logic unit identification information in the logic unit side non-volatile memory, and immediately after startup, the identification information set in the logic unit identification setter and the logic unit side nonvolatile memory The logical unit identification information stored and held in the memory, and if the result does not match, the attenuator setting information of each transmitter in the logical unit side non-volatile memory is updated, and the logical unit side The railway signal security equipment according to claim 1, wherein the logical part identification information stored and held in the nonvolatile memory is updated with the identification information set in the logical part identification setter. Transmitter mounting device. A transmitter identification setter that can set identification information of the transmitter is divided into a plurality in correspondence with each of the transmitters, and is provided on the transmission rack,
The logic unit stores and holds transmitter identification information of each transmitter in the logic unit side non-volatile memory, and transmits the identification information to each of the transmitters along with transmission of attenuator setting information. And
The transmitter also stores transmitter identification information in the transmitter-side non-volatile memory, and receives the attenuator setting information stored in the transmitter-side non-volatile memory immediately after startup from the logic unit. When updating, the transmitter identification information received from the logic unit is compared with the transmitter identification information stored in the transmitter-side non-volatile memory, and the update is refrained while the result does not match. The transmission rack mounting device for a railway signal security facility according to claim 2, wherein:   4. The transmission rack mounting device for a railway signal security facility according to claim 1, wherein the logic unit is a double system.

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