Automatic dispatching method for in-plant railway locomotives

Abstract

The invention relates to a railway turnout control method, in particular to an automatic dispatching method for in-plant railway locomotives, which comprises the following steps of: confirming whether a train passes through or not according to the reading amount of an RFID (Radio Frequency Identification Device) tag and controlling a train to be routed to start, and starting the train to be routed before the current train passes through; after the current train passes, the turnout is unlocked; the turnout is switched before the train to be routed is routed, a waiting locomotive is started after the current passing train passes by half, the turnout is unlocked after the current passing train completely passes by, and the waiting time of the train at the key node is shortened.

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; 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: Relay 1 was once occupied and is now idle; Relay 1 and Relay 2 were once occupied at the same time; Relay 2 was once occupied and is now idle; Relay 2 and Relay 3 were once occupied at the same time; Relay 3 was once idle, but is now occupied; Meeting the above conditions will unlock the Section 2 turnout.

[0005] 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

[0006] An object of the present invention is to provide.

[0007] To achieve the above object, the present invention adopts the following technical solutions: 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.

[0008] 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.

[0009] The locomotive is equipped with an onboard sensing system, which records the total number of sections M of the current train.

[0010] The waiting train stop position conditions include: the number of current branch tags read is [(N+1-M) / 2].

[0011] The conditions for the waiting train to depart include: the number of main road tags read by the current passing train is M / 2.

[0012] 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.

[0013] 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.

[0014] Beneficial effects of the present invention: 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; The parking position and starting time of waiting trains can be accurately controlled by reading the number of RFID electronic tags; Adding the reading of RFID electronic tags to the turnout unlocking logic further increases the reliability of turnout unlocking. DETAILED DESCRIPTION

[0015] This embodiment provides an in-plant railway locomotive automatic dispatching method, which is specifically as follows: 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.

[0016] The RFID tags on the ground record the current location information, identification number, and maintenance records; The turnout device is installed between two forks, and the dispatching center can control the turnout device to switch the forks; The locomotive's onboard sensing system records the total number of sections of the current train, the total number of times the tag is read, the location information, and the number of times the tag is read at the same location information; The communicator of the locomotive can communicate with the dispatch center through the on-board communication system, and the on-board sensing system also sends data to the dispatch center through the on-board communication system; Assume that the maximum value of the above-mentioned hot metal cars is N, the maximum number of train carriages passing currently is N + 1, and the number of turnouts is X; 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; Each turnout device is connected to three routes. The three routes are one main route and two branch routes respectively. Electronic tags are installed on the three routes. Each route is installed with N + 1 / 2 tags, and the distance between every two tags is the same as the length of the hot metal car; The distance between the tags on both sides of the turnout device to the turnout device is half of the safety distance between two trains; The two branch routes are the A branch route and the B branch route respectively. The A branch route 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 turnout device, and finally passes the tags on the main route.

[0017] When the first train passes, when there is a second train waiting on the B branch route, its parking waiting condition is: The number of tags read by the waiting train is [(N + 1 - M) / 2].

[0018] Subtract the current number of trains from the maximum number of trains, that is, get the quantity difference between the maximum number of trains and the actual number of trains. This quantity difference is the excess quantity of the actual number of trains compared with the number of tags on the current main route plus any one branch route. Distribute this excess quantity evenly at both ends of the tags on the current main route plus any one branch route and round up to obtain the above-mentioned parking condition. Its meaning is: When the waiting train stops, the distance in front of it is half of the length of the train passing by.

[0019] The starting condition of the waiting train is: The A branch route was once occupied and is now idle; The A branch route and the main route were once occupied simultaneously; The main route was once idle and is now occupied; The B branch route was once idle and is now occupied; The number of main route tags read by the currently passing train is M / 2.

[0020] In the present invention, the waiting train starts before the turnout is unlocked. Since more than half of the current train's carriages have entered the main route, and the distance from the waiting train to the turnout device is greater than half of the length of the train passing by, the waiting train will not collide with the currently passing train when starting at this time.

[0021] The unlocking condition of the turnout device is: The A branch route was once occupied and is now idle; A branch road and main road were once occupied at the same time; The main road was once vacant, but is now occupied; 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.

[0022] 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.

[0023] The switching conditions of the turnout device are: Branch A was once occupied but is now vacant; A branch road and main road were once occupied at the same time; Branch B was once vacant but is now occupied; The main road was once vacant, but is now occupied; 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.

[0024] 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.

[0025] 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 the RFID tag is used to confirm whether the vehicle has passed and control the start of the train that is about to enter the route.

2. The method for automatic dispatching of railway locomotives within a factory according to claim 1, characterized in that: Start the upcoming train before the current train passes; Unlock the switch after the current train passes; switch before the incoming train enters.

3. The method for automatic dispatching of railway locomotives within a factory according to claim 1 or 2, characterized in that: Labels are set according to the maximum number of molten iron cars N. Labels with a number no less than half of the number of train sections currently passing by are set on the main route and the branch route. The branch routes include at least A and B.

4. The method for automatic dispatching of railway locomotives within a factory according to claim 3, characterized in that: The locomotive is equipped with an onboard sensing system, which records the total number of sections M of the current train.

5. The method for automatic dispatching of railway locomotives within a factory according to claim 4, characterized in that: The waiting train stop position conditions include: The number of current branch labels read is [(N+1-M) / 2].

6. The method for automatic dispatching of railway locomotives in a factory according to claim 4, characterized in that: The conditions for the train to be departed include: The number of main road tags read by the current passing train is M / 2.

7. The method for automatic dispatching of railway locomotives within a factory according to claim 4, 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.

8. The method for automatic dispatching of railway locomotives in a factory according to claim 4, 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.