JPH0818557B2 - Car security control method for maintenance - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a safety control method for a maintenance vehicle in a railway station.

[Prior Art] Safety is ensured by running vehicles on the station yard according to the main traffic lights, interchange traffic lights, interchange signs, etc. However,
Since maintenance vehicles need to travel flexibly according to the maintenance work style, it is difficult to operate according to conventional signal systems. Therefore, the safety control of maintenance vehicles is not covered by the signal safety system. In general, the entire maintenance work area has been released from the signal handling area, and general vehicles have been prohibited to prevent accidents. However, the maintenance vehicle itself does not have any security function, and it has been left to the operator's attention. Therefore, the maintenance vehicle may escape from the work area and cause a serious driving trouble, which has been a problem. It was
However, to date, maintenance systems based on maintenance vehicles have not been invented, and have been regarded as one of the important issues in improving the safety of railway transportation systems.

In order to improve the safety of maintenance vehicles, it is an important factor to constantly track the trains that freely run in the work area. However, it has been difficult to judge the danger of a work area escape based on this information because only track-based tracking methods using track circuits have been adopted for vehicle tracking. On the other hand, a method of providing a means for calculating the traveling distance on the vehicle and tracking it on the vehicle has already been used. According to this method, more detailed tracking information may be acquired. However, this existing method is intended for trains that run in line areas, and tracking is basically done on a simple track such as in the middle of a station. It was just a simple one.

[Problems to be Solved by the Invention] Driving problems caused by the escape of maintenance vehicles inside stations have become a problem, but in general, maintenance vehicles are forced to run without a signal security system. It cannot be expected that the signal security system will ensure security. Although it is urgent to establish a security system for the work of maintenance vehicles on the station premises, such a method has not been invented to date.

In addition, in-vehicle tracking technology is important to solve the above problems. In order to track a maintenance vehicle that freely travels inside a station with complicated mesh-like wiring, it must be able to withstand complicated running on the basis of geographical location information within the station, but this tracking is required today. No method has been invented.

 The present invention is intended to solve these problems.

[Means for Solving the Problem] The present invention is a vehicle for registering work area information determined in accordance with a maintenance work plan in a maintenance vehicle as data, and for identifying an absolute on-rail point in a train station's station yard. Prepare tracking means.

In addition, in order to realize a vehicle tracking means on the vehicle, as one method, there is a distance calculation means for calculating the mileage and the yard information that describes the wiring data inside the station yard on the vehicle, and the direction of the branch is on the ground. The transmitting means for transmitting is arranged at the branch point so that the moving direction of the vehicle can be identified on the vehicle when passing through the branch point.

As another vehicle tracking method, the vehicle has wiring data in the station yard and a distance calculating means, assigns a code for identifying a necessary point on the ground, and allows the identification code to be received when the point passes.

[Operation] The work data storage unit is provided in the maintenance vehicle, and the work area of the maintenance vehicle determined according to the work plan is registered in advance. After the work is started, the movement of the maintenance vehicle accompanying the work is continuously tracked by the vehicle tracking means, and it is constantly checked that the movement of the maintenance vehicle is within the work area registered in the work data storage unit. As a result, when it is determined that there is a risk of traveling beyond the work area, the brake can be automatically actuated to prevent runaway to the outside of the work area.

On the vehicle, each time the vehicle passes a branching point in a complicated groove wiring, the branching direction in the branching section is identified using information from the transmitting means arranged on the ground,
The movement of the maintenance vehicle is continuously tracked by the track wiring data and distance calculation means prepared as premises information. As a result, it becomes possible to track independently of the signal security system on the ground.

Also, not the information on the branching direction, but the identification code for identifying each assigned to the location required for tracking shall be transmitted via the transponder, and the identification code registered in the on-vehicle premises information when the identification code is received If you try to deal with it, you can unequivocally determine the passing point and recognize the traveling direction. Therefore, it is possible to similarly continuously track the movement of the vehicle by using the line wiring data and the distance calculating means prepared as the premises information.

[Embodiment] An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram for explaining the configuration of the invention described in claim 1. In FIG. 1, the maintenance vehicle A is equipped with a work data storage section OP, vehicle tracking means TG for continuously tracking the traveling position of the maintenance vehicle A, and a security processing section PS. The work data storage unit DP stores the work area of the maintenance vehicle A, which is determined according to the maintenance work plan. When the maintenance work is started, the movement status is continuously tracked by the vehicle tracking means TG. Based on the tracking result, the security processing unit PS constantly checks that the maintenance vehicle A is in the work area, and brakes BR if there is a possibility of traveling beyond the work area.
To operate automatically. As a result, runaway from the designated work area can be prevented and safety can be secured.

Next, the invention described in claim 2 will be described with reference to FIG.
This will be described with reference to FIGS. 3 and 4. FIG. 2 is a diagram for explaining the invention described in claim 2. In FIG. 2, a transmitting means TR for transmitting the turning direction of the branching device P is arranged at the branching part in the station yard. The vehicle tracking means TG of the maintenance vehicle A is a receiving means RV for reading information from the above-mentioned transmitting means TR on the ground and a vehicle tracking processing section TP, a distance calculating means DC for detecting a moving distance of the vehicle, wiring in a station to run, and It has premises information SD1 that records the data of the ground. The distance calculation means DC is realized, for example, by integrating output pulses of a speed generator (not shown in this figure).

FIG. 3 and FIG. 4 are diagrams showing an arrangement example of the transmitting means TR (TR1, TR2, ..., TRn) for transmitting the turning direction of the branching device P. In the case of FIG. 3, the transmission means TR are arranged at the branching source of the branching device P, respectively. In this case, when the maintenance vehicle A approaches the branch point from the back side of the branch P, the transmitting means TR
1 transmits the change direction of the branching device P1. As a result,
Since the maintenance vehicle A can identify the subsequent branch destination,
Continuous tracking is possible by the distance calculation means DC in the figure and the track wiring in the station premises described in the premises information SD1. Transmission method
The content transmitted by TR changes depending on the branching state of the branching device P. On the other hand, as shown in FIG. 4, it is possible to arrange the transmitting means TR at the branch destinations of the branching device P, respectively. In this case, since the information transmitted from the transmission means TR is fixed information on either the localization side or the inversion side of the branch, it is not necessary to change the transmission content depending on the branching state of the branching device P. Maintenance vehicle A is a turnout
Transmitting means TR1 or TR2 depending on the branch status after passing P1
Receive information about. As a result, it can be determined on the vehicle which side the vehicle has traveled. The subsequent tracking method is exactly the same as that described with reference to FIG. In both the case shown in Fig. 3 and the case shown in Fig. 4, it is sufficient to have at most three types of information necessary to realize the localization and the inversion, which are used in the ATS-S type, for example. It is possible to use a ground element or the like that uses the above-mentioned principle of frequency change. Further, in order to practically use the present invention, the absolute position of the start point is determined by the vehicle tracking processing unit.
It is necessary to give to TP. For this purpose, it is conceivable to use a manual setting method or a separate information transmission means, but these are all technologies that have already been used and are not difficult.

Next, the contents of the invention described in claim 3 will be described with reference to FIG.

FIG. 5 is a diagram for explaining the invention described in claim 3. In Fig. 5, the identification code CD is assigned to the required point in the station yard, and the transponder TPD is arranged so that the identification code CD can be transmitted to the maintenance vehicle A. On-vehicle vehicle tracking means TG is transponder receiver TPR
And a vehicle tracking processing section TP, a distance calculation means DC for detecting the moving distance of the vehicle, wiring inside the station where the vehicle is running, and premises information SD2 in which data regarding the identification code CD is recorded.
In accordance with the movement of the maintenance vehicle A, the vehicle tracking processing unit TP grasps the traveling distance by the distance calculating means DC and traces it according to the wiring in the groove stored in the premises information SD2. Since the identification code CD of the transponder TPD located at the required point in the groove can be received each time the point passes, the vehicle tracking processing unit TP will not be able to track even if the vehicle travels in a complicated route on the network. Absent.

In the case of the present invention, although the absolute location of the identification code CD can be specified by receiving the identification code CD, the amount of information corresponding to the number of identification codes is required. If a transponder is used, this requirement can be fully satisfied. Also, the identification code CD
Is fixed information, it is not necessary to change the information of the transponder according to the branching direction of the branching device, and an uncontrolled transponder may be used. Note that the transponder described here does not refer to a specific device, but is a generic term for devices that can transmit necessary information in response to a transponder receiving unit on the vehicle.

[Advantages of the Invention] The maintenance vehicle security control method of the present invention, when the maintenance vehicle is not controlled by the conventional signal security device, operates the maintenance vehicle information and the traveling position registered in the maintenance vehicle itself. Safety is ensured by determining whether or not the vehicle is legitimate based on the tracking function of. Therefore, conventional ATS and A
There is no need to use a TC, etc., and it is possible to realize an optimal security system for maintenance vehicles that run without being concerned with the course of the train.

In order to realize this, it is an important factor to perform vehicle tracking along the complicated route of the station premises on the vehicle. In the vehicle tracking method of the present invention, data including the premises wiring prepared on the vehicle is used. On the contrary, since the turning direction of the passing branch is recognized on the vehicle or the identification code assigned to a specific point is recognized and tracked, it can be realized by adding a few facilities on the ground. Moreover, for this reason, the equipment placed on the ground is a ground element or a transponder, and there is an advantage that the vehicle can be tracked without interfacing with the interlocking device that controls the course while traveling on the premises.

[Brief description of drawings]

FIG. 1 is a diagram for explaining the configuration of the invention described in claim 1. FIG. 2 is a diagram for explaining the invention described in claim 2. FIG. 3 is a diagram showing an arrangement example of transmitting means TR (TR1, TR2, ..., TRn) for transmitting the change direction of the branching device P.
FIG. 4 shows transmitting means TR (TR
1, TR2, ..., TRn). FIG. 5 is a diagram for explaining the invention described in claim 3. A ... Maintenance vehicle, DP ... Work data storage unit, TG ... Vehicle tracking means, PS ... Security processing unit, BR ... Brake, P (P1, P2,
…, Pn) …… turnout device, TR (TR1, TR2,…, TRn) …… transmission means, RV …… reception means, TP …… vehicle tracking processing unit, DC …… distance calculation means, SD1, SD2 …… Site information, CD …… Identification code, TPD
...... Transponder, TPR …… Transponder receiver.

Claims (1)

[Claims] 1. A maintenance data and a work data storage unit that stores maintenance work area information on the wiring in a station on a maintenance vehicle, and a vehicle tracking unit and a security processing unit that continuously track the running position of the maintenance vehicle. In the security processing unit, it is constantly checked from the information of the vehicle tracking means that the movement of the maintenance vehicle accompanying the maintenance work is within the area defined by the work data stored in the work data storage unit. However, a maintenance vehicle safety control method characterized by automatically activating the brake when there is a risk of traveling beyond the work area.