JPS63166655A - Operation control return method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention automatically detects a moving object 1, for example, a vehicle constituting a train, with an object detection device, provides detected information to a central processing unit, A traffic management system that relates to the traffic management of moving objects that is automatically and dynamically managed by a train, and is particularly suitable for automatically and quickly restoring normal train traffic management after an accident such as a failure of a traffic control device occurs. Regarding the return method.

[Conventional technology]

In general, a traffic management system that detects the number of a moving moving object (hereinafter simply referred to as a vehicle) on the ground side, uses this detection result to know the position of the vehicle, and manages the operation status of the vehicle has already been used for Shinkansen trains. This has been realized on railways such as railways, and on-site railways at steel works, etc. An example of the configuration of the object detection device used here is described in Japanese Patent Publication No. 48-26328. That is, a train number is constructed by appropriately selecting resonators having different resonant frequencies fin-fmax corresponding to each number code, and a response device constructed by connecting the resonators to, for example, a loop antenna is connected to a train, etc. attached to a moving object. Furthermore, an interrogation device is installed on the ground that radiates into space via a loop antenna an interrogation signal whose frequency changes continuously as f+*in''fsax over time.This allows a train equipped with a response device to communicate with the interrogation device. When they approach and both loop antennas are electromagnetically coupled, the transponder resonates at the frequency assigned to each according to the interrogation signal.At this time, a response signal is generated in the transponder, and this response signal is transmitted to the interrogation device. It is also induced in the loop antenna.Therefore, a response signal is extracted from the interrogation device, and it is detected at which frequency the response device resonates corresponding to each number code, thereby detecting the train number.

Generally, a transmission device is added to the above-mentioned object detection device to centralize the information and then provide it to the central processing unit connected to the upper level, and the central processing unit detects the object. Execute automatic operation management based on the information.

In addition, in the past, as a means to avoid interruptions in automatic operation management due to failures, etc., a method of duplicating the central processing unit was considered and partially adopted, but it would require a huge amount of cost to realize this. It was difficult to realize this because it was uneconomical.

Therefore, when constructing a traffic management system using a single central processing unit, interruptions during a failure period are unavoidable, and the most important issue is shortening the time it takes to restore traffic management after failure repair.

[Problem that the invention seeks to solve]

However, an accident occurred due to a failure in the central processing unit that implements operation management using vehicle identification information and detection point information obtained by the object detection device, and the failed central processing unit was forced to recover from such a state. In the past, in order to match the operating status, the location of the vehicle was known by means of communication such as a telephone or wireless device, or visual confirmation of the vehicle, and the location information of the vehicle was manually transmitted to the central processing unit. They had to perform various operations such as inputting information, or wait until a new vehicle was detected. Therefore, not only is there a possibility of misidentification or erroneous operation, but there are also problems in safely and quickly restoring operation management, such as not being able to grasp the operation status for a long time.6 The present invention solves the problems of the above-mentioned conventional technology. We have developed a method for restoring operation management to automatically restore operation management after repair even if a failure occurs in the central processing unit, and to achieve highly reliable operation management. This is what we provide.

[Means for solving problems]

In order to achieve the above object, the operation management recovery method according to the present invention stores the latest position detection information and detection time of each vehicle detected by the object detection device in a failure recovery table, and then restores the central processing unit. The system is characterized in that the storage information of all vehicles is read out from the failure recovery table in response to a subsequent request signal and transferred to the central processing unit, thereby quickly and accurately restoring the operation information within the central processing unit. .

[Effect]

The present invention will be explained in detail below with reference to the drawings.

FIG. 1 shows the configuration of a device implementing the present invention in one embodiment. This traffic management device is configured as follows.

In this device example, the target object detection device is a question bag @ 2OA, 208, 20C, etc. installed at a predetermined position on the trajectory.
. . , and a response device 10 (10-1, 1O-2) installed in each vehicle (not shown) as a detection target.

In addition, the detection information transmission device is the local transmission device 30A.
, 3υB, 30C..., and a central transmission device 40 that collects distributed information, and the central transmission device 4
0 is a failure recovery table that stores the latest detection information (
A storage device) 50 is provided. This central transmission equipment (i
Connected to the i40 is a central processing unit 60 that executes traffic management based on the dispatch information.

The interrogation devices 2i 20A, 20B, 20C shown in FIG.
- Then, the frequency oscillator 24 continuously varies from the lower limit frequency fmin to the upper limit frequency fmax in a certain frequency range, and when the upper limit frequency is reached, the lower limit frequency fmin is changed again.
The frequency is continuously varied from fmax to the upper limit frequency fmax, and this is repeated, and this continuously changing frequency signal is sent to the loop antenna 21 via the power amplifier 23 and matching device 22.
radiated from.

This device is composed of a loop coil, a capacitor, and a resonator.When this vehicle approaches, the response device 10 responds to the interrogation device 20A.
, 20B, 20C..., the frequency fmin"fma radiated from the ground loop antenna 21 of the interrogation devices 20A, 20B, 20C...
In response to the continuously changing interrogation signal of x, the response device 10
transmits a signal at a predetermined frequency determined for each vehicle,
This is the frequency f radiated from the ground loop antenna 21
It resonates with a signal of a predetermined frequency in a continuously changing interrogation signal of min=fmax.

A resonant frequency is induced by the ground loop antenna 21, and the interrogators [2OA, 200, 20C, . . . . The detector 26 detects an oscillation frequency that resonates with the synchronization pulse output from the synchronization pulse generator 25, and generates a vehicle number code that is assigned in advance to this oscillation frequency. Response device 10
The detectors 26 are installed at two locations, one at the front and one at the rear of the vehicle.
detects each of the response devices 10-1 and 10-2. The direction in which the vehicle is traveling can be recognized based on which one is detected first (described later).

Additionally, the detector 26 has a clock, reads the time when the signal is detected, and transmits the vehicle number code (
Detection time information (separate codes for front and rear) is output. The traveling direction can be determined by comparing the detection time information of the vehicle number code in front of the vehicle with the detection time information of the vehicle number code in front of the vehicle.

Such object detection devices (to, 2OA, 20B, 20
C) generally includes interrogation devices 20A, 20B, 20C...
By installing a large number of . Vehicle detection information can be provided to the vehicle. For this purpose, each local transmission bag fa! Connect 30A, 30B, 30C... Local transmission device i! 30A, 30B, 30
C... is the detected vehicle code, detection time, and equipment fi30A, 30B, 30C by a predetermined transmission method.
...The respective position codes (position information) are transmitted to the central transmission device I40, and the central transmission device 40 finally outputs the detection information, etc. of the interrogation devices 20A, 20B, 20C, etc. to the central processing device 60. At the same time, it is stored in the failure recovery table 50 in correspondence with the vehicle code.

Based on the vehicle detection information, the central processing unit 60 executes operation management processing by referring to the position of vehicle number 1 on the track and the time.

Hereinafter, the failure recovery operation will be explained according to FIGS. 2 and 3. (a) and (b) of FIG. 2 are transition diagrams explaining the position of the vehicle over time. In the figure, 70 is a track, and aabecAzeefagph indicated by a black circle is an interrogation device ( position), 101.102,1
Vehicles 03, 104, 105, and 106 are equipped with response devices in two locations, front and rear. Although not shown in FIG. 2, for example, the vehicle 101
In this case, 101-t is the front response device, and 101-2 is the rear response device.

3(a) and 3(b) show the contents written in the failure recovery table 50 corresponding to FIGS. 2a and 2b. In the state shown in Figure 2a, the black dot (interrogation device)
At a, the response devices 10 and 101-2 of the vehicle 101 are connected, at the black circle point 102-t and 102-2, at the black circle point d, 103-t and 103-2, and at the black circle point e, 104-1.
and 104-2, but at black circle point f, 105-t and 105-2
However, 106-t and 106-2 are detected at the black circle point g, and the vehicle identification code, detection point (position of the FF device) code, and detection time are transmitted to the central transmission device 40. In contrast, the central transmission device 40 having the failure recovery table 50.

The detected information is transmitted to the central processing unit 60, and is also stored in the failure recovery table 50, as shown in FIG. 3(a). Each time detection information is received from each interrogation device, the table 50 is updated to store which vehicle, at which detection point, and when it was detected, corresponding to the response device, and the central processing group S! 60. - That is, when time passes from, for example, (a) in Figure 2 to (b) in Figure 2, vehicle 101 passes point b, vehicle 103 passes point f, and vehicle 104 passes point e. At this time, the contents of the failure recovery table 50 are as shown in FIG. 2/detection point b/Tb, vehicle identification 103-t/detection point f/detection time Tf", 103
-, /detection point f/Tf, vehicle identification 104-1/detection point e/detection time Te.

104-2/e/Te”.

In other words, the failure recovery table 50 always stores the latest detection information for each response device.

Now, suppose that in the state shown in FIG. 2(a), a failure has occurred in the central processing module M60 that executes operation management, and vehicle detection information cannot be obtained. After that, when the central processing unit 60 repairs and restores the system, since the detection information during the failure period is not transmitted to the central processing unit 60, each of the vehicles 101 to 106 is at the detection point a =
The vehicle's position is unknown until it passes through any of h. In other words, the condition of the vehicle at the time of repair is the second
In the state shown in (b) of the diagram, the positions of vehicles 101, 103, and 104 have already changed, and if these changes cannot be detected, safe and reliable operation management cannot be performed. .

But the central transmission device! 40 failure recovery table 50 captures the latest detection information of each vehicle even during a failure, so the central processing unit i! 60, by giving a restoration request signal A to the central transmission device 40, the central transmission device 40 responds by reading out the latest detection information of all vehicles from the table 50 and transmitting it to the central processing device 60. . The central processing unit 60 reads these data, instantly recognizes the locations of all vehicles and how they are lined up, and resumes operation management based on these data.

Therefore, when the restoration request signal A is issued, highly reliable operation management is resumed instantaneously. In other words, in vehicle 1O1, since the 101-1 side was detected first (Tb'') at point b, it can be determined that it has proceeded forward (to the right), and the vehicle 101-1 side is detected first (Tb'') in front of it. Tb'
) It can also be seen that vehicle 102 exists. Also vehicle 1
In 04, the 104-2 side was detected first at point e (Te”)
From this fact, it can be determined that the vehicle has traveled backwards (to the left).

Note that this recovery function is performed regardless of the vehicle detection method and the transmission method of the transmission device, so the configurations of the object detection device and the transmission device may be modified in various ways. . Further, the present invention is not limited to the above-described method, but can be implemented with appropriate modifications within the scope of the gist. For example, instead of installing two transponders on a vehicle, one transponder may be installed on the vehicle, and two interrogating devices may be installed at predetermined positions along the track at a predetermined interval to determine which one resonates first. In the case of a method that determines the direction of movement of a vehicle based on
The clock may be installed in the transmission device. Furthermore, if there is an overall processing device (for example, a process computer) above the central processing unit, this function can be installed in the central processing unit. Moreover, it can also be applied to failure recovery of tracking systems for continuous rolling equipment, process lines, etc. in steel mills, etc.

〔Example〕

An embodiment is shown in FIG. 4, which shows a configuration in which the present invention is applied to an operation management system for railway transportation within a steelworks. First, vehicle detection information obtained by electromagnetic coupling between a response device equipped on a vehicle (not shown) traveling on the railway track 170 and interrogation devices 160A to 160H installed at predetermined positions along the track is , the local transmission devices (slave stations) 150A-15011... to the local transmission devices (master stations) 140A-1400... Local transmission device (master station) 140A-14
00... transmits detection information to the central transmission bag 91120 according to a predetermined transmission procedure with the central transmission device 120 connected by an optical transmission line 130 installed along the railway line. The central transmission device 120 transmits the vehicle detection information to the central processing device 1110 and at the same time updates the latest detection information in the failure recovery table 121. Central processing unit 110
Then, operation management processing is executed based on the vehicle detection information, and information services are provided through the operation panel 111 and the CRT 112. If the central processing unit 110 breaks down and is repaired, the central transmission unit! 120, the recovery request signal A
By outputting , the latest vehicle detection information stored in the failure recovery table 121 is read out from the central transmission device 120 as recovery information. This information is immediately displayed on the control panel 1.
11. The information will be displayed on the CRT 112, and operation management will be promptly resumed.

During this time, everything was processed automatically, so it was possible to recover in just a few seconds, although it varied depending on the number of interrogators and vehicles.

〔Effect of the invention〕

As described above, according to the present invention, operation management can be restored automatically and instantaneously after failure repair of a central processing unit in charge of operation management without requiring a large amount of time, manpower, or equipment or construction. This makes it possible to realize a highly reliable and rational operation management system.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an apparatus that implements one embodiment of the present invention. FIG. 2 is a plan view showing the position of the moving body. FIG. 3 is a plan view showing data written in the failure recovery table 50 shown in FIG. 1. FIG. 4 is a block diagram showing a device configuration for implementing the present invention in one embodiment in a railway transport operation management system within a steelworks premises.

Claims (1)

[Claims] an object detection device that identifies a moving object, detects the position of the moving object, and generates identification information and position information; a transmission device that encodes and transmits the identification information and position information; and an object detection device that encodes and transmits the identification information and position information; A traffic control device comprising a central processing unit that manages the movement of moving objects according to information and position information is provided with a failure recovery table that stores the latest position information and detection time of each moving object detected by the detection device, After a failure occurs in the central processing unit and the failure is repaired,
A method for restoring traffic management, comprising automatically restoring traffic management based on the latest information in the failure recovery table.