Bus speed control method, device and medium based on ordered station pairs

Abstract

The present invention relates to a method, device and medium for controlling the speed of a bus operation based on an ordered station pair. The control method comprises the following steps: S1: obtaining bus line information and generating a station name sequence; S2: regularizing the station name sequence; S3: splitting the regularized station name sequence into N-1 ordered station pairs; S4: setting a unique vehicle speed for each ordered station pair according to the actual road conditions; S5: generating a line speed control table based on the original set operating speed of each line and the corresponding vehicle speed of the station pair updated in S4, and using the line speed control table as a bus operation speed control strategy. Compared with the prior art, the present invention splits the bus line into ordered station pairs that distinguish between up and down traffic, disassembles the bus line network from the combination of bus lines into the combination of ordered station pairs, and breaks the whole into parts, thereby solving the problem that a unique vehicle speed control strategy cannot be set for vehicles traveling on the same road section without road network data.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent public transportation systems, and in particular to a method, device and medium for controlling the speed of public transportation based on ordered station pairs. Background Art

[0002] Conventional ground bus routes have the characteristics of fixed routes and fixed stops. A bus route consists of multiple stops and sections.

[0003] Speed ​​control is a means to ensure the safety of public transport operations. The current method for speed control of ground bus routes is mainly to set the route as a unit, specifically by setting the full travel time range of the route or setting the maximum vehicle operating speed.

[0004] Due to the scarcity of urban road resources, in order to meet the different travel needs of passengers, there are often multiple bus lines running on the same road section. When the speed control strategies of different lines are relatively independent, vehicles running on the same road section may have obvious and unreasonable speed differences. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a bus speed control method, equipment and medium based on ordered station pairs. From a practical point of view, it provides a method for bus companies and relevant transportation departments to set a unique speed control strategy for vehicles traveling on the same road section without the need for road network data and station longitude and latitude information.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A first aspect of the present invention provides a method for controlling the speed of a public transportation system based on ordered station pairs, comprising the following steps:

[0008] S1: Obtain bus route information and generate station name sequence;

[0009] S2: Regularize the station name sequence;

[0010] S3: Split the regularized station name sequence into N-1 ordered station pairs;

[0011] S4: Set a unique vehicle speed for each ordered station pair according to the actual road conditions;

[0012] S5: Based on the original set operating speed of each line and the corresponding speed of the station pair updated in S4, a line speed control table is generated, and the line speed control table is used as a bus operating speed control strategy.

[0013] Furthermore, in S1, the station name sequence includes bus line name information, up and down information, and stop site name information on the line.

[0014] Furthermore, in S1, in the station name sequence, the names of the various stop sites are arranged in sequence according to the travel direction to form a sequential station name text sequence.

[0015] Furthermore, in S2, the process of regularizing the station name sequence includes:

[0016] S2-1: Add the name of the virtual station without stopping in the station name sequence;

[0017] S2-2: Replace similar station names on different routes with unified station names.

[0018] Furthermore, in S2-2, the station names of different routes whose distances are less than a preset threshold are replaced with a unified station name.

[0019] Furthermore, in S3, the specific process includes:

[0020] The lines of N stations in each line are split into N-1 ordered pairs of stations by matching the front and rear stations.

[0021] Furthermore, in S4, the process of matching the preceding and following stations is as follows: the station name sequence of each line is matched in staggered rows to form a station corresponding sequence table in a double-column form, and the station names that do not correspond at the beginning and the end of the station corresponding sequence table are removed.

[0022] Furthermore, in S4, the specific process is: searching for the same station pair information from each route, constructing the same station pair information set, and then setting a unique vehicle speed for the station interval corresponding to each station pair information in the same station pair information set.

[0023] A second aspect of the present invention provides an electronic device, comprising a memory and a processor, wherein the processor is used to execute a program in the memory, so as to implement the above-mentioned bus speed control method based on ordered station pairs.

[0024] A third aspect of the present invention provides a storage medium comprising computer executable instructions, which, when executed by a computer processor, is used to execute the above-mentioned method for controlling the speed of a bus based on ordered station pairs.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention splits bus routes into ordered station pairs distinguishing between up and down routes, and disassembles the bus network from a combination of bus routes into a combination of ordered station pairs, thereby breaking the whole into parts, thereby solving the problem that a unique speed control strategy cannot be set for vehicles traveling on the same road section without road network data. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the basic principle of the present invention;

[0028] Figure 2 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0029] In general, the present invention discloses a method for controlling the running speed of vehicles on ground bus lines, which solves the problem that the speed control strategies of different bus lines passing through the same road section cannot be unified. The method includes obtaining the station names of all bus lines and generating a station name sequence; supplementing the stations that do not stop during the pass and merging adjacent stations; splitting a line with N stations in one direction into N-1 ordered station pairs; setting a unique speed control for each different ordered station pair according to the actual road conditions; re-sorting the stations according to the line sequence, combining the station pairs into lines, and generating a line speed control table.

[0030] Specifically, the present invention provides a method for controlling the running speed of vehicles on a ground bus line, which comprises:

[0031] S1: Distinguish between up and down lines, obtain the names of the stops of all lines in the bus network, summarize them in the same table and column, and generate a sequence of station names;

[0032] S2: For routes that skip some stations without stopping, the skipped stations are added to the route as virtual stations; for stations with adjacent platforms, the names of similar platforms and stations are replaced with unified station names;

[0033] S3: Split a line with N stations in one direction into N-1 ordered station pairs; this is achieved by copying the data in this column to the adjacent column on the right and shifting it down one row;

[0034] S4: Set a unique vehicle speed control for each different ordered station pair according to the actual road conditions;

[0035] S5: Rearrange the stations according to the line sequence, combine station pairs into lines, and generate a line speed control table.

[0036] Among them, the unique speed control is manifested in that the same speed control is set for multiple bus lines passing through the same orderly station pair.

[0037] Among them, the line speed control table shows that the speed control of a line with N stations in one direction is composed of the speed control of N-1 ordered station pairs.

[0038] The basic principle of the present invention is:

[0039] like Figure 1 As shown in ①, it is assumed that there are three bus lines A, B, and C. Lines A and B run on the same line A6-A9 and B3-B6, lines A and C run on the same line A4-A7 and C3-C6, and lines A, B, and C run on the same line A6-A7, B3-B4, and C5-C6.

[0040] Assuming that the speed control is set to 40km / h for Line A, 50km / h for Line B, and 30km / h for Line C, then on the section where Lines A and B share the same line, vehicles on Line A will run at 40km / h and vehicles on Line B will run at 50km / h; on the section where Lines A and C share the same line, vehicles on Line A will run at 40km / h and vehicles on Line C will run at 30km / h; on the section where Lines A, B, and C share the same line, vehicles on Line A will run at 40km / h, vehicles on Line B will run at 50km / h, and vehicles on Line C will run at 30km / h. Figure 1 As shown in ②, at this time, there is an unreasonable phenomenon that the buses traveling on the same road section have different speed controls.

[0041] To solve this problem, assume that the speed control of Line A is set to 40 km / h and the speed control of Line B and Line C is set to the same station as Line A and adopt the existing speed control of Line A at 40 km / h. Figure 1 As shown in ③, at this time, a unique vehicle speed control method is set for the routes passing through the same road section.

[0042] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms and other features not clearly described in this technical solution are all considered to be common technical features disclosed in the prior art.

[0043] Example 1

[0044] use Figure 1 The three bus routes in are examples. Figure 2 FIG. 1 is a flow chart of the bus speed control method of the present invention. Figure 2 As shown, the method comprises the following steps:

[0045] S1: Distinguish up and down lines, obtain the names of the stops of all lines in the bus network, summarize them in the same table and column, and generate a sequence of station names; as shown in Table 1 on the left;

[0046] S2: For lines that skip some stations without stopping, the skipped stations are added to the line as virtual stations; for stations with adjacent platforms, the names of similar platforms and stations are replaced with unified station names.

[0047] As shown in Table 1 on the right, the third station of Line C and the fourth station of Line A have the same location but different station names. The name of the fourth station of Line C is standardized before calculation.

[0048] Table 1. S1, S2

[0049]

[0050]

[0051] S3: Split a line with N stations in one direction into N-1 ordered pairs of stations; this is achieved by copying the data in this column to the adjacent column on the right and shifting it down by one row, as shown in Table 2; remove the boundary rows at the beginning and end of each line (displayed in bold);

[0052] Table 2.S3

[0053]

[0054]

[0055] S4: Set a unique vehicle speed control for each different ordered station pair according to the actual road conditions;

[0056] As shown in Table 3, the same station pairs (shown in bold) that are passed by multiple routes are identified and approved as a unified vehicle speed control method;

[0057] Table 3.S4

[0058]

[0059] S5: Rearrange the station sequence according to the line, combine the station pairs into lines, and generate a line speed control table, as shown in Table 4.

[0060] Table 4.S5

[0061]

[0062]

[0063] This embodiment also proposes a bus speed control device based on ordered station pairs, the device includes a processor and a memory, the processor and the memory are coupled, the memory stores program instructions, and the above-mentioned task management method is implemented when the program instructions stored in the memory are executed by the processor. The processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components; the memory may include a random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory. The memory can be an internal memory of the random access memory (RAM) type, and the processor and the memory can be integrated into one or more independent circuits or hardware, such as an application-specific integrated circuit (ASIC). It should be noted that the computer program in the above-mentioned memory can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, an electronic device, or a network device, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention.

[0064] This embodiment also proposes a computer-readable storage medium, wherein the storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the above-mentioned bus speed control method based on ordered station pairs. The storage medium can be an electronic medium, a magnetic medium, an optical medium, an electromagnetic medium, an infrared medium, or a semiconductor system or a propagation medium. The storage medium can also include semiconductor or solid-state memory, a magnetic tape, a removable computer disk, a random access memory (RAM), a read-only memory (ROM), a hard disk, and an optical disk. The optical disk can include a compact disk-read only memory (CD-ROM), a compact disk-read / write (CD-RW), and a DVD.

[0065] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A method for controlling the speed of a public transportation system based on ordered station pairs, characterized in that: The following steps are involved: S1: Obtain bus route information and generate station name sequence; S2: Regularize the station name sequence; S3: Split the regularized station name sequence into N-1 ordered station pairs; S4: Set a unique vehicle speed for each ordered station pair according to the actual road conditions; S5: Based on the original set operating speed of each line and the corresponding speed of the station pair updated in S4, a line speed control table is generated, and the line speed control table is used as a bus operating speed control strategy; In S2, the process of regularizing the station name sequence includes: S2-1: Add the name of the virtual station without stopping in the station name sequence; S2-2: Replace similar station names on different routes with unified station names; In S2-2, the station names of the platforms with distances less than a preset threshold in different routes are replaced with a unified station name; In S3, the specific process includes: Split the N-station line in each line into N-1 ordered station pairs by matching the previous and next stations; In S4, the process of matching the preceding and following stations is as follows: the station name sequence of each line is matched in staggered rows to form a station corresponding sequence table in a double-column form, and the station names that do not correspond at the beginning and the end of the station corresponding sequence table are removed.

2. A method for controlling the speed of a public transportation system based on ordered station pairs according to claim 1, characterized in that: In S1, the station name sequence includes bus line name information, up and down information, and stop station name information on the line.

3. A method for controlling the speed of a public transportation system based on ordered station pairs according to claim 1, characterized in that: In S1, in the station name sequence, the names of the various stop sites are arranged in sequence according to the travel direction to form a sequential station name text sequence.

4. A method for controlling the speed of a public transportation operation based on ordered station pairs according to claim 1, characterized in that: In S4, the specific process is: searching for the same station pair information from each line, constructing the same station pair information set, and then setting a unique vehicle speed for the station interval corresponding to each station pair information in the same station pair information set.

5. An electronic device, comprising a memory and a processor, characterized in that: The processor is used to execute the program in the memory, so as to implement the bus speed control method based on ordered station pairs as described in any one of claims 1 to 4.

6. A storage medium containing computer executable instructions, characterized in that: The storage medium of the computer executable instructions is used to execute the bus running speed control method based on ordered station pairs as described in any one of claims 1 to 4 when executed by a computer processor.

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