JP3301501B2 - Electronic interlocking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic interlocking device,
More specifically, high-speed operation is enabled by performing interlocking processing in response to changes in route information or on-site equipment information, and all interlocking processes are performed in a fixed order within a fixed time after the change. The present invention relates to a technology for ensuring high security by confirming the quality of an interlocking process in response to a change in information or the like.

[0002]

2. Description of the Related Art A conventional electronic interlocking device employs a so-called interlocking single thread processing system in which all interlocking processes are performed in a predetermined order based on the same data captured within a predetermined time from the viewpoint of emphasizing safety. I have. FIG. 5 is a diagram showing an example of processing contents and a procedure of a conventional electronic interlocking device adopting an interlocking single thread system. Since the contents of each processing unit are well known to those skilled in the art, description thereof will be omitted. A series of processing from on-site device output to display output is 600 msec
Executed within That is, signal control, point control, etc.
It is not executed unless a maximum of 600 msec has elapsed since the change of the field device information.

[0003]

However, the conventional electronic interlocking device performs a series of interlocking processes using the same data, so that the process is simple and high security can be obtained.
It was not possible to control according to track information such as orbital information, information on the turning position of the switch, and on-site equipment information, which was an obstacle to high-density operation.

A first object of the present invention is to solve the above-mentioned problems and to provide an electronic interlocking device capable of performing interlocking processing in response to a change in route information or on-site equipment information to enable high-density operation. It is.

[0005] A second object of the present invention is to provide an electronic interlocking device which can ensure high security by confirming the quality of interlocking processing in response to a change within a predetermined time.

[0006]

In order to solve the above-mentioned problems, the present invention provides an electronic interlocking apparatus including an event processing unit and a background processing unit, and linking between field devices based on route information and field device information. When the route information or the field device information changes, the event processing unit performs an interlocking process in response to the change, and generates an interlocking output. All the interlocking processes are performed in a predetermined order, and the quality of the interlocking process of the event processing unit is checked.

[0007]

When the route information or the on-site equipment information changes, the event processing unit performs an interlocking process immediately in response to the change and generates an interlocking output. The interlocking process corresponding to the route information becomes possible. In addition, when on-site equipment information such as a track circuit changes due to movement of a preceding train, an interlocking process for unlocking a route lock, an approach lock, etc. is performed immediately without waiting for a certain period of time. It becomes possible to perform the interlocking process for the following train. Therefore, high-density operation becomes possible.

The background processing unit performs all the interlocking processes in a certain order within a certain time, and checks whether the interlocking process of the event processing unit is good or not. After a certain period of time, the same interlocking process as the interlocking process of the event processing unit is performed.
Even if an error occurs in the interlocking process of the event processing unit, the error can be corrected by the interlocking process of the background processing unit. Therefore, control can be performed in response to information changes, and high security is also ensured.

[0009]

FIG. 1 is a block diagram showing the configuration of an electronic interlocking device according to the present invention. In the figure, A is an electronic interlocking device,
3 is an operation management device that generates route information, 4 is on-site equipment,
Reference numeral 5 denotes an optical LAN for performing information communication between the operation management device and the electronic interlocking device, and reference numeral 6 denotes an optical LAN for performing information communication between the electronic interlocking device and field devices. The operation management device 3 includes an operation panel 31 for manually inputting and an automatic control device 3 for automatically inputting.
2. It is composed of a CTC device 33. The field device 4 includes a traffic light 41, a switch 42, a track circuit 4n, and the like.

The electronic interlocking device A includes an event processing unit 1
It includes a background processing unit 2 and interlocks between the field devices 4 based on the route information S1 and the field device information S2.
The electronic interlocking device A is configured by a computer, and the event processing unit 1 and the background processing unit 2 are configured by a program.

When the route information S1 or the on-site equipment information S2 changes, the event processing section 1 performs an interlocking process in response to the change, and generates an interlocking output. Course information S1
If the local device information S2 is small, an interlocking process corresponding to the change is performed by interruption. When the route information S1 and the field device information S2 are large, a short time interval, for example, 2
A timer interrupt is generated at 00 msec intervals, and an interlocking process corresponding to a change within the time interval is performed. The linked output is transmitted to the field device 4 as field device information S2.

The background processing unit 2 performs all the interlocking processes in a fixed order within a fixed time after the change, for example, 600 msec, and checks whether the interlocking process of the event processing unit 1 is good or bad. When it is determined that the interlocking process of the event processing unit 1 is erroneous, the interlocking process of the background processing unit 2 is transmitted to the field device 4 prior to the interlocking process of the event processing unit 1.

As described above, when the route information S1 or the on-site equipment information S2 changes, the event processing unit 1 performs an interlocking process in response to the change and generates an interlocked output. In the case of a change, an interlocking process can be performed in response to the changed route information S1. In addition, the on-site equipment information S such as track circuits etc.
When the number 2 changes, the interlocking process for unlocking the track lock, the approach lock, etc. is performed immediately without waiting for a fixed time (maximum 600 msec), and the interlocking process for the subsequent train can be performed early. become. Therefore, high-density operation becomes possible.

The background processing unit 2 performs all the interlocking processes in a certain order within a certain time and checks whether the interlocking process of the event processing unit 1 is good or not. After a certain period of time has elapsed after the change of the event processing unit, the same interlocking process as the interlocking process of the event processing unit 1 is performed. Even if an error occurs in the interlocking process of the event processing unit 1, it can be corrected by the interlocking process of the background processing unit 2. Become like Therefore, control can be performed in response to information changes, and high security is also ensured. For example, the event processing unit 1 responds immediately to route information and the like.
After the interlocking process is performed, the route information etc. are corrected,
Accordingly, even when the interlocking process of the event processing unit 1 is not corrected, the error of the interlocking process of the event processing unit 1 can be corrected by the interlocking process of the background processing unit 2. That is, high security is ensured by the double check function of the background processing unit 2.

Further, the event processing section 1 of the embodiment has a change data creating section 11 and a data processing section 12. The change data creating unit 11 stores the route information S1 and the site device information S2, and stores the route information S1 and the site device information S2.
When 2 changes, the stored data is updated to the changed information. The data processing unit 12 detects an updated portion of the stored data of the change data creating unit 11, and performs an interlocking process corresponding to the updated portion. Therefore, changes in the route information S1 and the on-site device information S2 are reliably detected, and the management of the route information S1 and the on-site device information S2 is facilitated, and a highly reliable interlocking process can be performed.

Further, in the event processing section 1 of the embodiment, the data processing section 12 performs a timer interrupt process at a time interval (200 msec) shorter than a predetermined time (600 msec). Therefore, the route information S1 and the field device information S
200msec even if 2 is temporarily wrong
If the stored data of the change data creating unit 11 has been corrected to the normal route information S1 and the on-site device information S2 within the time period, the normal interlocking process can be performed. That is, the timer interruption time becomes a delay time, thereby preventing erroneous interlocking processing.

Furthermore, the change data creating unit 11 of the embodiment
Has a first change data creation unit 111 and a second change data creation unit 112. The first change data creation unit 111 updates the storage data related to the course information S1.
The second change data creation unit 112 updates the storage data related to the field device information S2. The data processing unit 12
Has a data processing unit 121 and a second data processing unit 122. The first data processing unit 121 detects an update portion of the storage data of the first change data creation unit 111,
Perform interlocking processing corresponding to the updated part. The second data processing unit 122 detects an updated portion of the second change data creating unit 112 and performs an interlocking process corresponding to the updated portion. For this reason, the interlocking process related to the course information S1 for the future and the interlocking process related to the current on-site device information S2 are separated, so that the respective interlocking processing programs are facilitated and the processing speed is improved. Normally, the electronic interlocking device is constituted by a multiplex system and is subjected to majority processing. Therefore, the program becomes easier, and the reliability of the linked processing is further improved when errors in the linked processing are reduced.

The data processing unit 12 prioritizes the processing of the first data processing unit 121 over the processing of the second data processing unit 122. For this reason, it is possible to perform an interlocking process in response to a course change.

FIG. 2 is an interlocking chart in a specific embodiment of the electronic interlocking device according to the present invention. The symbols of the interlocking chart and the interlocking conditions are well known to those skilled in the art, and thus description thereof is omitted. This interlocking chart is the fourth in "Signal" (co-authored by Hiroshi Yoshimura and Saburo Yoshikoshi), which is a bible for railway signal engineers.
See page 15, FIG. 9.59.

FIG. 3 is a diagram showing the configuration of the processing contents of the electronic interlocking device shown in FIG. Referring to FIGS. 1 and 2,
Each part will be described. The scheduler manages operation timings of EV1 processing task activation management, EV2 processing task activation management, and BG processing task activation management. The EV1 processing task activation management and the EV2 processing task activation management constitute the event processing unit 1 in FIG.

The EV1 processing task activation management includes a first change data creation unit 111 and a first data processing unit 121. The EV1 processing task activation management is activated by a 200 msec timer interrupt. The first change data creation unit 111 detects a change in storage data related to the course information S1. The first data processing unit 121 performs an interlocking process such as “route control”, “route setting”, and “point control” in response to the changed route information S1.

The EV2 processing task activation management includes a second change data creation unit 112 and a second data processing unit 122. The EV2 processing task activation management is activated by a 200 msec timer interrupt. The second change data creation unit 112 detects a change in stored data related to the field device information S2. The second data processing unit 122 performs an interlocking process such as “vehicle tracking”, “unlocking approaching lock”, “point control”, “signal control”, etc., in response to the changed on-site device information S2. .

The BG processing task activation management constitutes the background processing unit 2 in FIG. The BG processing task activation management starts when the EV1 processing task activation management and the EV2 processing task activation management are not activated, and is executed for 600 ms.
Interlock processing such as "path setting", "signal control", and "unlocking of approach lock" is performed at time intervals of ec.

The processes of "point control", "signal control", "unlocking of the pathway lock" and "unlocking of the approach lock" are performed in accordance with the conditions of the interlocking chart shown in FIG.

"Point control" and "signal control" are EV
Although it seems that there is overlap between the 1-task task activation management and the EV2 processing task activation management, the "point control" and "signal control" of the EV1 processing task activation management are performed in advance before the train enters the section. To process, EV
“Tip control” and “signal control” of the two-process task activation management are for performing processing while the train is traveling or entering the section, and do not actually overlap.

In the event processing unit 1 and the background processing unit 2, the processes of “path setting”, “signal control”, and “unlocking of the approach lock” are duplicated. This is for confirming the quality of the data by the interlocking process of the background processing unit 2. In order to improve the verification accuracy of the interlocking process, it is best to perform all the processes. However, in order to reduce the processing time, the process is reduced to the minimum necessary.

FIG. 4 is a diagram showing a processing operation image of the electronic interlocking device shown in FIG. In the drawings, the same reference numerals as those in FIGS. 2 and 3 indicate the same components. CD
1 is storage data of the first change data creation unit 111, CD2 is storage data of the second change data creation unit 112, EV1 is an interlocking process of the first data processing unit 121, E1
V2 is an interlocking process of the second data processing unit 122, and BG is an interlocking process of the background processing unit 2.

The EV1 processing task activation management is 200 msec.
, And requests the operation management device 3 to transmit the route information S1. The route information S1 transmitted from the operation management device 3 is stored in the first change data creation unit 111 in the storage data CD.
Stored as 1. Similarly, the EV2 processing task activation management is activated at a time interval of 200 msec, requests the field device 4 to transmit the field device information S2, and generates the second change data based on the field device information S2 transmitted from the field device 4. The storage unit 112 stores the data as storage data CD2.

The EV1 processing task activation management compares the storage data relating to the route information S1 previously stored in the first change data creation unit 111 with the storage data CD1 currently stored in the first change data creation unit 111. Then, an updated portion of the route information S1 is detected, and an interlocking process for the updated portion is performed. Similarly, the EV2 processing task activation management is based on the field device information S2 stored last time in the second change data creation unit 112.
Is compared with the storage data CD2 stored this time in the second change data creation unit 112, an updated part of the field device information S2 is detected, and an interlocking process for the updated part is performed. The previously stored data of the EV1 processing task activation management and the EV2 processing task activation management are stored in the first change data creation unit 111 and the second
Storage data CD1, CD2 of the change data creation unit 112
Will be updated to

The BG processing task activation management performs the interlocking processing BG based on the storage data of the EV1 processing task activation management and the EV2 processing task activation management. In the BG processing task activation management, all the interlocking processes are performed within 600 msec even when the timer interrupt processing of the EV1 processing task activation management and the EV2 processing task activation management is executed. That is, BG
The processing task activation management can confirm the quality of the EV1 processing task activation management and the EV2 processing task activation management within 600 msec after the route information S1 and the field device information S2 change. The route information S1 and the field device information S2 are 6
Since it does not change within 00 msec, the EV1 processing task activation management, the EV2 processing task activation management, and the BG processing task activation management are not interlocked by different information. Even when the route information S1 and the field device information S2 change due to noise, the EV1 processing task activation management, the EV2 processing task activation management, and the BG processing task activation management share the storage data CD1 and CD2. There is no mistake. Further, since the route information S1 and the field device information S2 do not change within 600 msec, the route information S1 and the field device information S2 that change twice or more within 600 msec are ignored in the EV1 processing task activation management and the EV2 processing task activation management. This can remove the influence of noise.

Next, the operation timing of each processing task will be described with reference to FIGS. First, at time t11, the EV1 processing task activation management is activated by a timer interrupt. The EV1 processing task activation management issues a transmission request of the route information S1 to the operation management device 3, and the route information S1
1 is stored as the storage data CD1, and the storage data relating to the previously stored path information S1 is compared with the storage data CD1 stored this time to detect an updated part of the path information S1.

At time t12, the EV2 processing task activation management is activated by a timer interrupt. The EV2 processing task activation management issues a request to transmit the field device information S2 to the field device 4, stores the field device information S2 as storage data CD2, and stores the storage data relating to the field device information S2 stored last time and the data stored this time. The updated part of the field device information S2 is detected by comparing the stored data CD2.

At time t13, if the updated part of the field device information S2 is detected, the EV2 processing task activation management is restarted, and the linked processing EV2 is performed for the updated part of the storage data CD2. For example, if the updated part is “the train has advanced from the track circuit 7T”, the on-site signal 1
Unlock the pathway lock related to R. Thereby, the interlocking process can be performed in response to the change.

At time t14, the EV2 processing task activation management ends, and the BG processing task activation management starts.
The BG processing task activation management executes the processing shown in FIG. 3 in order from the top.

At time t21, the EV1 processing task activation management is activated by a timer interrupt, and the BG processing task activation management is interrupted. Thereafter, from time t21 to t2
Up to 4, processing similar to the processing from time t11 to t14 is performed. At time t23, if the updated portion of the route information S1 is detected, the EV1 processing task activation management is restarted, and the linked process EV1 is performed on the updated portion of the storage data CD1. For example, if the updated portion is “Tokyo-Descent Main Line”, necessary interlocking processing such as “signal control” related to the inside signal 1R in the interlocking chart shown in FIG. 2 is performed. As a result, an interlocking process immediately corresponding to the route information S1 can be performed.

At time t31, EV1 processing task activation management is activated by a timer interrupt, and BG processing task activation management is interrupted. Thereafter, from time t31 to time t32, the same processing as the processing from time t11 to time t12 is performed. At time t33,
If the updated part of the route information S1 and the field device information S2 is not detected, the BG processing task activation management is activated. At time t34, the BG processing task activation management compares its own interlocking processing result with the interlocking processing results of the EV1 processing task activation management and the EV2 processing task activation management, outputs a pass / fail determination result, and ends. If the judgment result is “No”,
Outputs the result of self-interlock. Thereby, the EV1 processing task activation management and the EV2 processing task activation management are complemented by the double check function of the BG processing task activation management, and high security is ensured. Depending on the processing timing of the BG processing task activation management, it may not be possible to supplement the EV1 processing task activation management at time t34.
Can be complemented during 00 msec. That is, the EV1 processing task activation management and the EV2 processing task activation management are always complemented by the BG processing task activation management within 600 msec after the change of the information.

The above embodiment has been described using the easiest change detection method and the time-division method for the sake of explanation. However, in order to secure the processing time of the BG processing task activation management according to the gist of the present invention. A change detection method using a known advanced software technique and a time division method can also be adopted.

[0038]

As described above, according to the present invention, the following effects can be obtained. (A) It is possible to provide an electronic interlocking device capable of performing interlocking processing in response to a change in route information or on-site equipment information to enable high-density operation. (B) It is possible to provide an electronic interlocking device that can ensure high security by confirming the quality of the interlocking process in response to a change within a predetermined time.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an electronic interlocking device according to the present invention.

FIG. 2 is an interlocking chart in a specific embodiment of the electronic interlocking device according to the present invention.

FIG. 3 is a diagram showing a configuration of processing contents of the electronic interlocking device shown in FIG. 2;

FIG. 4 is a diagram showing a processing operation image of the electronic interlocking device shown in FIG. 2;

FIG. 5 is a diagram showing an example of processing contents and a procedure of a conventional electronic interlocking device adopting an interlocking single thread system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 event processing unit 11 change data creation unit 111 first change data creation unit 112 second change data creation unit 12 data processing unit 121 first data processing unit 122 first data processing unit 2 background processing unit 3 operation Management device 4 Field device 5, 6 Optical LAN S1 Route information S2 Field device information

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-171801 (JP, A) JP-B-61-29001 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B61L 19/06

Claims (6)

(57) [Claims] 1. An electronic interlocking device that includes an event processing unit and a background processing unit, and links between field devices according to route information and field device information, wherein the event processing unit is configured to control the route information or the route information. When the on-site equipment information changes, the linked processing is performed in response to the change, and a linked output is generated.The background processing unit performs all the linked processing in a fixed order within a fixed time, and An electronic interlocking device for checking whether the interlocking process of the processing unit is good or not. 2. The interlocking output in which the background processing unit gives priority to the interlocking process of the event processing unit when the background processing unit determines that the interlocking process of the event processing unit is no. 2. The electronic interlocking device according to claim 1, wherein: 3. The event processing unit includes a change data creating unit and a data processing unit, wherein the change data creating unit stores the route information and the field device information, and stores the route information and the field device information. 3. The data processing unit according to claim 1, wherein when the field device information changes, the stored data is updated to the changed information, and the data processing unit detects an updated portion of the stored data and performs an interlocking process corresponding to the updated portion. An electronic interlocking device according to item 1. 4. The electronic interlocking device according to claim 3, wherein the event processing unit causes the data processing unit to execute an interrupt process at a time interval shorter than the predetermined time. 5. The change data creation unit has a first change data creation unit and a second change data creation unit, and the first change data creation unit updates storage data related to the route information. The second change data creating unit updates storage data related to the site device information, wherein the data processing unit has a first data processing unit and a second data processing unit, The first data processing unit is the first data processing unit.
An update part of the storage data related to the path information of the change data creation unit is detected, and an interlocking process corresponding to the update part is performed, and the second data processing unit performs the second change data generation.
Update unit for storing data related to the field device information of the data creation unit
The electronic interlocking device according to claim 4, wherein the interlocking process is performed by detecting a minute and performing an interlocking process corresponding to the updated portion. 6. The electronic interlocking device according to claim 5, wherein the data processing unit prioritizes the processing of the first data processing unit over the processing of the second data processing unit.