A method for automatic dispatching of railway locomotives within a factory

Abstract

The present invention relates to a railway turnout control method, and in particular to an in-plant railway locomotive automatic dispatching method, which confirms whether a vehicle has passed and controls the start of an incoming train through the reading amount of an RFID tag, starts the incoming train before the current train passes; unlocks the turnout after the current train passes; switches the turnout before the incoming train enters, starts the waiting locomotive after the current train passes halfway, and unlocks the turnout after the current train passes completely, thereby reducing the waiting time of the train at key nodes.

Description

Technical Field

[0001] The invention relates to a railway turnout control method, and in particular to an in-plant railway locomotive automatic dispatching method. Background Art

[0002] Railway transportation is the main means of transporting molten iron in metallurgical plants. The routes of locomotives and molten iron cars are arranged through a dispatching system. The switches on the route must be locked before the entire train passes and unlocked after the train passes to facilitate the entry of locomotives on other routes.

[0003] The turnout can generally be unlocked only after a three-point inspection principle, i.e. the previous section has been occupied and cleared; the turnout section has been occupied and the current section has been cleared; and the next section has also been occupied.

[0004] The occupation of the section is generally reflected by the state of the relay. When there is a car in the section, the track relay falls, and when there is no car in the section, the track relay is attracted;

[0005] In order to prevent one of the relays from malfunctioning, four sections are generally set. When the turnout is in section No. 2, its unlocking conditions are as follows:

[0006] Relay 1 was once occupied and is now idle;

[0007] Relay 1 and Relay 2 were once occupied at the same time;

[0008] Relay 2 was once occupied and is now idle;

[0009] Relay 2 and Relay 3 were once occupied at the same time;

[0010] Relay 3 was once idle, but is now occupied;

[0011] Meeting the above conditions will unlock the Section 2 turnout.

[0012] Although the existing route unlocking solution meets the current safety needs of passing trains, it requires a long waiting time for trains waiting to enter the main road, which will affect the transportation efficiency of trains in busier sections. Summary of the invention

[0013] An object of the present invention is to provide.

[0014] To achieve the above object, the present invention adopts the following technical solutions:

[0015] An automated dispatching method for railway locomotives within a factory, characterized in that the reading amount of an RFID tag is used to confirm whether a vehicle has passed and to control the start of an incoming train, start the incoming train before the current train passes; unlock the switch after the current train passes; and switch the switch before the incoming train enters.

[0016] The labels are set according to the maximum number of molten iron cars N, and the main road and at least two branch roads are each set with labels that are no less than half of the number of train sections currently passing by.

[0017] The locomotive is equipped with an onboard sensing system, which records the total number of sections M of the current train.

[0018] The waiting train stop position conditions include: the number of current branch tags read is [(N+1-M) / 2].

[0019] The conditions for the waiting train to depart include: the number of main road tags read by the current passing train is M / 2.

[0020] The turnout unlocking conditions include:

[0021] The train currently passing by has read the A branch label, and the twice of the A branch label reading amount is greater than M;

[0022] The train currently passing by has read the main road tag before, and the number of main road tags read is twice greater than M.

[0023] The switch switching conditions include:

[0024] The train currently passing by has read the A branch label, and the twice of the A branch label reading amount is greater than M;

[0025] The train currently passing by has read the main road tag before, and the number of main road tags read is twice greater than M;

[0026] The number of B-branch tags read by the waiting train is M / 2.

[0027] Beneficial effects of the present invention:

[0028] The waiting locomotive is started after the current train has passed halfway, and the turnout is unlocked after the current train has passed completely, thus reducing the waiting time of trains at key nodes;

[0029] The parking position and starting time of waiting trains can be accurately controlled by reading the number of RFID electronic tags;

[0030] Adding the reading of RFID electronic tags to the turnout unlocking logic further increases the reliability of turnout unlocking. DETAILED DESCRIPTION

[0031] This embodiment provides an in-plant railway locomotive automatic dispatching method, which is specifically as follows:

[0032] There are two main factors that affect the number of molten iron cars: one is the blast furnace output, and the other is the locomotive traction capacity. Under the condition of the same locomotive capacity, the number of molten iron cars traveling between a fixed blast furnace and steel mill is generally fixed.

[0033] The RFID tags on the ground record the current location information, identification numbers, and maintenance records;

[0034] The switch device is installed between two branch roads, and the dispatching center can control the switch device to switch the branch roads;

[0035] The on-vehicle sensing system of the locomotive records the total number of carriages of the current train, the total number of times of reading tags, location information, and the number of times of reading tags under the same location information;

[0036] The communication operator of the locomotive can communicate with the dispatching center through the on-vehicle communication system, and the on-vehicle sensing system also sends data to the dispatching center through the on-vehicle communication system;

[0037] Assume that the maximum value of the above-mentioned number of hot metal ladle cars is N, the maximum value of the number of carriages of the current passing train is N + 1, and the number of switches is X;

[0038] Then the total number of tags on the ground is (3N + 3) * X / 2. If N + 1 is odd, the total number of tags is (3N / 2 + 3) * X;

[0039] Each switch device is connected to three routes. The three routes are one main route and two branch routes. Electronic tags are installed on the three routes respectively, and N + 1 / 2 tags are installed on each route. The distance between every two tags is the same as the length of the hot metal ladle car;

[0040] The distance between the tags on both sides of the switch device to the switch device is half of the safe distance between two trains;

[0041] The two branch routes are Branch Route A and Branch Route B respectively. Branch Route A and the main route are being occupied. The number of carriages of the first train is M, M < N + 1. It enters the main route from the branch route. It first passes the tags on the branch route, then passes the switch device, and finally passes the tags on the main route.

[0042] When the first train passes, when there is a second train waiting on Branch Route B, the conditions for it to stop are:

[0043] The number of tags read by the waiting train is [(N + 1 - M) / 2].

[0044] Subtracting the current number of trains from the maximum number of trains, that is, getting the quantity difference between the maximum number of trains and the actual number of trains. This quantity difference is the excess quantity of the current main route plus the tags on any one branch route compared to the actual number of trains. Distributing this excess quantity evenly at both ends of the tags on the current main route plus any one branch route and taking the integer, that is, obtaining the above-mentioned stopping conditions, and its meaning is:

[0045] When the waiting train stops, the distance in front of it is half of the length of the train passing by.

[0046] The starting conditions for the waiting train are:

[0047] Branch A was once occupied but is now vacant;

[0048] A branch road and main road were once occupied at the same time;

[0049] The main road was once vacant, but is now occupied;

[0050] Branch B was once vacant but is now occupied;

[0051] The number of main road tags read by the current passing train is M / 2.

[0052] In the present invention, before the switch is unlocked, the waiting train starts, because more than half of the current train has entered the main road, and the distance from the waiting train to the switch device is greater than half of the length of the passing train, so the waiting train will not collide with the current passing train when it starts at this time.

[0053] The unlocking conditions of the turnout device are:

[0054] Branch A was once occupied but is now vacant;

[0055] A branch road and main road were once occupied at the same time;

[0056] The main road was once vacant, but is now occupied;

[0057] The train currently passing by has read the A branch label, and the twice of the A branch label reading amount is greater than M;

[0058] The train currently passing by has read the main road tag before, and the number of main road tags read is twice greater than M.

[0059] The above-mentioned occupied and idle conditions are obtained through relays, and the conditions of tag reading are added to ensure that the switch is unlocked after the current passing train has completely passed.

[0060] The switching conditions of the turnout device are:

[0061] Branch A was once occupied but is now vacant;

[0062] A branch road and main road were once occupied at the same time;

[0063] Branch B was once vacant but is now occupied;

[0064] The main road was once vacant, but is now occupied;

[0065] The train currently passing by has read the A branch label, and the twice of the A branch label reading amount is greater than M;

[0066] The train currently passing by has read the main road tag before, and the number of main road tags read is twice greater than M;

[0067] The number of B-branch tags read by the waiting train is M / 2.

[0068] Among the above conditions, when there is no B branch occupation, only the switch device is unlocked, that is, the switch is switched when it is confirmed that the waiting train has entered and started, and the current train has also completely passed.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automated dispatching method for railway locomotives within a factory, characterized in that: The reading volume of RFID tags is used to confirm whether a vehicle has passed and control the start of the train that is about to enter the route; Start the upcoming train before the current train passes; After the current train passes, unlock the switch; before the incoming train enters, switch the switch; Labels are set according to the maximum number of molten iron cars N. Labels with no less than half the number of train sections currently passing by are set on the main route and the branch route. The branch route includes at least branch route A and branch route B. The locomotive is equipped with an onboard sensing system, which records the total number of sections M of the current train; The waiting train stop position conditions include: The number of current branch labels read is [(N+1-M) / 2]; The conditions for the train to be departed include: The number of main road tags read by the current passing train is M / 2.

2. The method for automatic dispatching of railway locomotives within a factory according to claim 1, characterized in that: The turnout unlocking conditions include: The train currently passing by has read the A branch label, and the twice of the A branch label reading amount is greater than M; The train currently passing by has read the main road tag before, and the number of main road tags read is twice greater than M.

3. The method for automatic dispatching of railway locomotives within a factory according to claim 1, characterized in that: The switch switching conditions include: The train currently passing by has read the A branch label, and the twice of the A branch label reading amount is greater than M; The train currently passing by has read the main road tag before, and the number of main road tags read is twice greater than M; The number of B-branch tags read by the waiting train is M / 2.