A train voice broadcast content checking method

Abstract

The present application relates to train voice broadcast technical field, especially in a kind of train voice broadcast content verification method, including the mapping relationship of establishing train station and voice broadcast content;According to the departure time of train in last station, whether the preset arrival time in the voice broadcast content corresponding to next station is accurate is judged;If it is judged that preset arrival time is not accurate, the time difference between arrival time and preset arrival time is calculated to adjust the average running speed of train;When the departure time of last station is less than or equal to preset departure time, whether preset arrival time is accurate is secondly judged according to the actual average speed of train;If it is judged that train can arrive next station in time, preset arrival time is real-time corrected according to the difference between actual average speed and second preset speed;Otherwise, the average running speed of train is adjusted to corresponding value according to the difference between actual average speed and first preset speed.The present application improves the accuracy of train voice broadcast.

Description

Technical Field

[0001] This invention relates to the field of train voice broadcasting technology, and in particular to a method for verifying the content of train voice broadcasts. Background Technology

[0002] Train voice announcements can inform passengers in advance of the name of the next station, arrival time, and stop time, allowing passengers to pack their luggage in advance and reminding them to avoid missing their stop. They can also introduce the specific details of the entire train service, the location of the train conductor and staff, etc., creating conditions for passengers to seek help from train staff if needed. They can also introduce the scenery along the way, the arrival times of various trains, and the departure and arrival times of transfer stations, making it convenient for passengers to transfer.

[0003] Chinese Patent Application Publication No. CN114420132A discloses a method, system, and storage medium for verifying train voice broadcast content. Specifically, the method involves: acquiring the voice broadcast from the train; recognizing the voice broadcast using a multi-factor perception combination model based on a deep neural network to generate text information of the voice to be recognized; acquiring voice broadcast keyword packets for the corresponding stations according to the train arrival timetable; matching the text information of the voice to be recognized with the voice broadcast keyword packets for the corresponding stations to verify the content of the voice broadcast; if the verification fails, acquiring the voice broadcast content and the verification time, and reporting it to the ground center via a wireless network. This invention provides a method for timely identification of whether the content of the voice broadcast matches the corresponding station.

[0004] However, in reality, the audio announcements on trains are pre-recorded audio files customized for each station, and the content is generally error-free. However, the arrival times of trains often change according to the actual situation, resulting in inaccurate preset arrival times in the audio announcements and a decline in the passenger experience. Summary of the Invention

[0005] To address this issue, the present invention provides a method for verifying train voice broadcast content, thereby overcoming the problem of inaccurate preset arrival times in the voice broadcast content in the prior art.

[0006] To achieve the above objectives, the present invention provides a method for verifying train voice broadcast content, comprising: Step S1: The voice broadcast module establishes a mapping relationship between train stations and voice broadcast content; Step S2: The central control module determines whether the preset arrival time in the voice broadcast content corresponding to the next station is accurate based on the train's departure time at the previous station. Step S3: If the preset arrival time is determined to be inaccurate, the time difference between the arrival time and the preset arrival time is calculated to adjust the average train speed. If the preset arrival time is determined to be accurate, the process jumps to step S4. Step S4: When the departure time of the train at the previous station is less than or equal to the preset departure time, the central control module performs a second determination on whether the preset arrival time is accurate based on the actual average speed of the train. Step S5: If it is determined that the train can reach the next station in time, the preset arrival time is corrected in real time according to the difference between the actual average speed and the second preset speed; otherwise, the average running speed of the train is adjusted to the corresponding value according to the difference between the actual average speed and the first preset speed. Step S6: The voice broadcast module updates the preset arrival time and broadcasts the updated arrival time.

[0007] Furthermore, the voice broadcast module has a mapping relationship between train stations and voice broadcast content. At any station on the train route, the voice broadcast module obtains the voice broadcast content that has a mapping relationship with the station and broadcasts it. The preset arrival time in the voice broadcast content corresponds to the train timetable.

[0008] Furthermore, the central control module obtains the preset arrival time from the voice broadcast content corresponding to the next station, and determines whether the preset arrival time is accurate based on the train's departure time at the previous station. If the departure time of the previous station is less than or equal to the preset departure time, the central control module makes a secondary determination on whether the preset arrival time is accurate based on the actual average speed of the train. If the departure time of the previous station is greater than the preset departure time, the central control module determines that the preset arrival time is inaccurate, and calculates the arrival time based on the distance between the train's current position and the next station, as well as the real-time average speed. It also calculates the time difference between the arrival time and the preset arrival time to adjust the average running speed of the train.

[0009] Furthermore, the speed monitoring module obtains the speed influence factor based on weather conditions and calculates the train's actual average speed based on the speed influence factor. The actual average speed is the product of the train's average running speed and the speed influence factor. When the departure time at the previous station is less than or equal to the preset departure time, the central control module performs a secondary determination on the accuracy of the preset arrival time based on the train's actual average speed. If the actual average speed is greater than or equal to the preset standard speed, it is determined that the train can reach the next station in time. If the actual average speed is less than the preset standard speed, the train's preset arrival time will be judged three times based on the first time difference between the departure time of the previous station and the preset departure time.

[0010] Furthermore, the central control module is provided with a first preset speed and a second preset speed. The first preset speed is less than the preset standard speed and less than the second preset speed. Under the first preset condition, the central control module compares the actual average speed with the second preset speed. If the actual average speed is greater than the second preset speed, the preset arrival time is corrected in real time according to the first speed difference. The first speed difference is the difference between the actual average speed and the second preset speed; The first preset condition is that the departure time of the previous station is less than or equal to the preset departure time and the actual average speed is greater than or equal to the preset standard speed.

[0011] Furthermore, the central control module is equipped with several correction methods for the preset arrival time based on the first speed difference, wherein the correction range of each correction method for the preset arrival time is different.

[0012] Furthermore, under the second preset conditions, the central control module performs three determinations based on the first time difference to determine whether the train's preset arrival time is accurate, wherein... If the first time difference is less than the first time difference comparison value, and the actual average speed is less than the first preset speed, then it is determined that the preset arrival time of the train is inaccurate, and the central control module adjusts the average running speed of the train according to the second speed difference. In all other cases, it was determined that the train could reach the next station in time. The second speed difference is the difference between the actual average speed and the first preset speed; The second preset condition is that the departure time of the previous station is less than or equal to the preset departure time and the actual average speed is less than the preset standard speed.

[0013] Furthermore, the central control module is equipped with several adjustment methods for the average train speed based on the second speed difference, wherein each adjustment method has a different adjustment range for the average train speed.

[0014] Furthermore, when the departure time of the train at the previous station is greater than the preset departure time, the central control module calculates the arrival time based on the distance between the train's current position and the station, as well as the real-time average speed. It then calculates a second time difference between the arrival time and the preset arrival time to adjust the train's average speed. The central control module has several adjustment methods for the train's average speed based on the second time difference, and each adjustment method has a different adjustment range for the train's average speed.

[0015] Furthermore, the central control module compares the adjusted average train speed with the preset maximum speed. If the adjusted average train speed is greater than the preset maximum speed, the train speed is set to the preset maximum speed. The train arrival time is calculated, and the preset arrival time in the voice broadcast is corrected to the train arrival time before being broadcast.

[0016] Compared with the prior art, the beneficial effect of the present invention is that the central control module of the present invention determines whether the preset arrival time is accurate based on the departure time of the train at the previous station. If the departure time of the previous station is less than or equal to the preset departure time, it means that the train departed from the previous station earlier than the preset departure time. The central control module performs a second determination on whether the preset arrival time is accurate based on the actual average speed of the train, thereby improving the accuracy of the determination of the preset arrival time.

[0017] Furthermore, by establishing a mapping relationship between train stations and voice broadcast content, the present invention allows the voice broadcast module to retrieve the corresponding voice broadcast content upon arrival at any station, which is convenient, fast, and ensures the accuracy of the voice broadcast content.

[0018] Furthermore, this invention obtains speed influence factors based on weather conditions and calculates the train's actual average speed based on these factors. The calculated actual average speed is closer to the actual value, allowing for a more accurate determination of whether the preset arrival time is accurate. If the actual average speed is greater than or equal to the preset standard speed, the train can arrive at the next station ahead of schedule. The central control module corrects the preset arrival time in real time based on the difference between the actual average speed and the second preset speed, improving the accuracy of the preset arrival time in the voice broadcast and enhancing the passenger experience. If the actual average speed is less than the preset standard speed, the accuracy of the train's preset arrival time is determined three times based on the earlier departure time and the train's actual average speed. Through the above technical solution, the accuracy of determining the preset arrival time is further improved.

[0019] Furthermore, when the present invention makes three determinations on whether the preset arrival time of the train is accurate, if the first time difference is less than the first time difference comparison value and the actual average speed is less than the first preset speed, the preset arrival time of the train is determined to be inaccurate. At this time, the central control module adjusts the average running speed of the train so that the train can arrive at the next station at the preset arrival time, thereby improving the accuracy of the preset arrival time in the voice broadcast content and improving the passenger experience.

[0020] Furthermore, when the departure time of the previous station is greater than the preset departure time, the present invention calculates the arrival time based on the distance between the train's current position and the station, as well as the real-time average speed. It calculates a second time difference between the arrival time and the preset arrival time to adjust the average running speed of the train. By adjusting the running speed, the train can arrive at the next station at the preset arrival time, thereby improving the accuracy of the preset arrival time in the voice broadcast and enhancing the passenger experience. Attached Figure Description

[0021] Figure 1 This is a flowchart of the train voice broadcast content verification method according to an embodiment of the present invention; Figure 2 This is a logic diagram for determining whether the preset arrival time of the train is accurate, as shown in an embodiment of the present invention. Figure 3 This is a logic diagram for a secondary determination of whether the preset arrival time of the train is accurate, as shown in an embodiment of the present invention. Figure 4 This is a logic diagram for determining the accuracy of the train's preset arrival time in an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0025] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Please see Figure 1 As shown, it is a flowchart of the train voice broadcast content verification method according to an embodiment of the present invention. The train voice broadcast content verification method of the present invention includes: Step S1: The voice broadcast module establishes a mapping relationship between train stations and voice broadcast content; Step S2: The central control module determines whether the preset arrival time in the voice broadcast content corresponding to the next station is accurate based on the train's departure time at the previous station. Step S3: If the preset arrival time is determined to be inaccurate, the time difference between the arrival time and the preset arrival time is calculated to adjust the average train speed. If the preset arrival time is determined to be accurate, the process jumps to step S4. Step S4: When the departure time of the train at the previous station is less than or equal to the preset departure time, the central control module performs a second determination on whether the preset arrival time is accurate based on the actual average speed of the train. Step S5: If it is determined that the train can reach the next station in time, the preset arrival time is corrected in real time according to the difference between the actual average speed and the second preset speed; otherwise, the average running speed of the train is adjusted to the corresponding value according to the difference between the actual average speed and the first preset speed. Step S6: The voice broadcast module updates the preset arrival time and broadcasts the updated arrival time.

[0027] This invention establishes a mapping relationship between train stations and voice broadcast content. When arriving at any station, the voice broadcast module retrieves the corresponding voice broadcast content, which is convenient, fast, and ensures the accuracy of the voice broadcast content.

[0028] Specifically, the voice broadcast module has a mapping relationship between train stations and voice broadcast content. At any station on the train route, the voice broadcast module obtains the voice broadcast content that has a mapping relationship with the station and broadcasts it. The preset arrival time in the voice broadcast content corresponds to the train timetable.

[0029] Please see Figure 2 As shown, this is a logic diagram for determining the accuracy of the preset arrival time of a train according to an embodiment of the present invention. The central control module obtains the preset arrival time from the voice broadcast content corresponding to the next station, and determines whether the preset arrival time is accurate based on the train's departure time at the previous station. If the departure time of the previous station is less than or equal to the preset departure time, the central control module makes a secondary determination on whether the preset arrival time is accurate based on the actual average speed of the train. If the departure time of the previous station is greater than the preset departure time, the central control module determines that the preset arrival time is inaccurate, and calculates the arrival time based on the distance between the train's current position and the next station, as well as the real-time average speed. It also calculates the time difference between the arrival time and the preset arrival time to adjust the average running speed of the train.

[0030] The central control module of this invention determines whether the preset arrival time is accurate based on the train's departure time at the previous station. If the departure time at the previous station is less than or equal to the preset departure time, it means that the train departed from the previous station earlier than the preset departure time. The central control module performs a second determination on the accuracy of the preset arrival time based on the train's actual average speed, thereby improving the accuracy of the determination of the preset arrival time.

[0031] Please see Figure 3 The diagram illustrates a secondary judgment logic for determining the accuracy of the train's preset arrival time according to an embodiment of the present invention. The speed monitoring module obtains a speed influence factor based on weather conditions and calculates the train's actual average speed based on this factor. The actual average speed is the product of the train's average running speed and the speed influence factor. When the departure time at the previous station is less than or equal to the preset departure time, the central control module performs a secondary judgment on the accuracy of the train's preset arrival time based on the train's actual average speed. If the actual average speed is greater than or equal to the preset standard speed, it is determined that the train can reach the next station in time. If the actual average speed is less than the preset standard speed, the train's preset arrival time will be judged three times based on the first time difference between the departure time of the previous station and the preset departure time.

[0032] First time difference = preset departure time - departure time of the previous station.

[0033] This invention obtains speed influence factors based on weather conditions and calculates the train's actual average speed based on these factors. The calculated actual average speed is closer to the actual value, allowing for a more accurate determination of the preset arrival time. If the actual average speed is greater than or equal to the preset standard speed, the train can arrive at the next station ahead of schedule. The central control module corrects the preset arrival time in real time based on the difference between the actual average speed and the second preset speed, improving the accuracy of the preset arrival time in the voice broadcast and enhancing the passenger experience. If the actual average speed is less than the preset standard speed, the accuracy of the preset arrival time is determined three times based on the earlier departure time and the train's actual average speed. Through the above technical solution, the accuracy of the preset arrival time determination is further improved.

[0034] In this embodiment, the speed influence factor obtained from weather conditions can be used to determine the actual impact of weather on train speed. Based on historical data calculations, when the wind force is greater than level 4, the influence factor for strong winds is set to 0.96. For each additional level of wind force, the influence factor is multiplied by an influence coefficient, setting the influence coefficient to 0.98. When 24-hour rainfall is greater than 10mm, the influence factor for rainy weather is set to 0.94. For every 5mm increase in 24-hour rainfall, the influence factor is multiplied by an influence coefficient. If rainy weather is accompanied by thunderstorms, the influence factor is multiplied by an influence coefficient. When 24-hour snowfall is greater than 2.5mm, the influence factor for snowy weather is set to 0.94. For every 5mm increase in 24-hour snowfall, the influence factor is multiplied by an influence coefficient.

[0035] Specifically, the central control module has a first preset speed and a second preset speed. The first preset speed is less than the preset standard speed and less than the second preset speed. Under the first preset condition, the central control module compares the actual average speed with the second preset speed. If the actual average speed is greater than the second preset speed, the preset arrival time is corrected in real time according to the first speed difference. The first speed difference is the difference between the actual average speed and the second preset speed; The first preset condition is that the departure time of the previous station is less than or equal to the preset departure time and the actual average speed is greater than or equal to the preset standard speed.

[0036] Specifically, the central control module has several correction methods for the preset arrival time based on the first speed difference, wherein the correction range of each correction method for the preset arrival time is different.

[0037] Specifically, the first speed difference = actual average speed - second preset speed.

[0038] The central control module includes a first speed difference comparison value and a second speed difference comparison value. The first speed difference comparison value is smaller than the second speed difference comparison value. If the first speed difference is less than the first speed difference comparison value, the central control module selects the first time correction coefficient e1 to correct the preset arrival time, and sets the corrected preset arrival time = (preset arrival time - first time difference) × e1; If the first speed difference is greater than or equal to the first speed difference comparison value and less than the second speed difference comparison value, the central control module selects the second time correction coefficient e2 to correct the preset arrival time, and sets the corrected preset arrival time = (preset arrival time - first time difference) × e2; If the first speed difference is greater than or equal to the second speed difference comparison value, the central control module selects the third time correction coefficient e3 to correct the preset arrival time, and sets the corrected preset arrival time = (preset arrival time - first time difference) × e3; In this embodiment, 0.85 < e3 < e2 < e1 < 1 is set, and preferably e1 = 0.94, e2 = 0.9, and e3 = 0.86.

[0039] Please see Figure 4 As shown, this is a logic diagram for determining the accuracy of the train's preset arrival time in an embodiment of the present invention. The central control module performs three determinations based on the first time difference under a second preset condition to determine whether the train's preset arrival time is accurate. If the first time difference is less than the first time difference comparison value, and the actual average speed is less than the first preset speed, then it is determined that the preset arrival time of the train is inaccurate, and the central control module adjusts the average running speed of the train according to the second speed difference. In all other cases, it was determined that the train could reach the next station in time. The second speed difference is the difference between the actual average speed and the first preset speed; The second preset condition is that the departure time of the previous station is less than or equal to the preset departure time and the actual average speed is less than the preset standard speed.

[0040] When this invention performs three checks on the accuracy of the train's preset arrival time, if the first time difference is less than the first time difference comparison value and the actual average speed is less than the first preset speed, the train's preset arrival time is determined to be inaccurate. At this time, the central control module adjusts the train's average running speed so that the train can arrive at the next station at the preset arrival time, thereby improving the accuracy of the preset arrival time in the voice broadcast and enhancing the passenger experience.

[0041] Specifically, the central control module has several adjustment methods for the average train speed based on the second speed difference, and each adjustment method has a different adjustment range for the average train speed.

[0042] Specifically, the second speed difference = the first preset speed - the actual average speed. If the second speed difference is less than the first speed difference comparison value, the central control module selects the first speed adjustment coefficient α1 to adjust the average running speed of the train, and sets the adjusted average running speed of the train = average running speed of the train × α1; If the second speed difference is greater than or equal to the comparison value of the first speed difference and less than the comparison value of the second speed difference, the central control module selects the second speed adjustment coefficient α2 to adjust the average running speed of the train, and sets the adjusted average running speed of the train = average running speed of the train × α2. If the second speed difference is greater than or equal to the second speed difference comparison value, the central control module selects the third speed adjustment coefficient α3 to adjust the average running speed of the train, and sets the adjusted average running speed of the train = average running speed of the train × α3. In this embodiment, 1.2 < α3 < α2 < α1 < 1.5 is set, and preferably α1 = 1.3, α2 = 1.35, and α3 = 1.4.

[0043] Specifically, when the departure time of the train at the previous station is greater than the preset departure time, the central control module calculates the arrival time based on the distance between the train's current position and the station, as well as the real-time average speed. It then calculates a second time difference between the arrival time and the preset arrival time to adjust the train's average speed. The central control module has several adjustment methods for the train's average speed based on the second time difference, and each adjustment method has a different adjustment range for the train's average speed.

[0044] Specifically, the second time difference = arrival time - preset arrival time.

[0045] If the second time difference is less than the first time difference comparison value, the central control module selects the first speed adjustment coefficient α1 to adjust the average train speed, and sets the adjusted average train speed = average train speed × α1. If the second time difference is greater than or equal to the first time difference comparison value and less than the second time difference comparison value, the central control module selects the second speed adjustment coefficient α2 to adjust the average train speed, and sets the adjusted average train speed = average train speed × α2. If the second time difference is greater than or equal to the second time difference comparison value, the central control module selects the third speed adjustment coefficient α3 to adjust the average train speed, and sets the adjusted average train speed = average train speed × α3. In this embodiment, 1.2 < α3 < α2 < α1 < 1.5 is set. When adjusting the average train speed according to the second time difference, it is preferred that α1 = 1.26, α2 = 1.37, and α3 = 1.42.

[0046] When the departure time of the previous station is greater than the preset departure time, this invention calculates the arrival time based on the distance between the train's current position and the station, as well as the real-time average speed. It then calculates a second time difference between the arrival time and the preset arrival time to adjust the train's average operating speed. By adjusting the operating speed, the train can arrive at the next station at the preset arrival time, thereby improving the accuracy of the preset arrival time in the voice broadcast and enhancing the passenger experience.

[0047] Specifically, the central control module compares the adjusted average train speed with the preset maximum speed. If the adjusted average train speed is greater than the preset maximum speed, the train speed is set to the preset maximum speed. The train arrival time is calculated, and the preset arrival time in the voice broadcast is corrected to the train arrival time before being broadcast.

[0048] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for verifying the content of train voice broadcasts, characterized in that, include: Step S1: The voice broadcast module establishes a mapping relationship between train stations and voice broadcast content; Step S2: The central control module determines whether the preset arrival time in the voice broadcast content corresponding to the next station is accurate based on the train's departure time at the previous station. Step S3: If the departure time of the previous station is greater than the preset departure time, the central control module determines that the preset arrival time is inaccurate, and calculates the arrival time based on the distance between the train's current position and the next station, as well as the real-time actual average speed. It also calculates the time difference between the arrival time and the preset arrival time to adjust the train's average running speed. The speed monitoring module obtains the speed influence factor based on the weather conditions and calculates the train's actual average speed based on the speed influence factor. The train's actual average speed is the product of the train's average running speed and the speed influence factor. If the preset arrival time is determined to be accurate, the process jumps to step S4. Step S4: When the departure time of the train at the previous station is less than or equal to the preset departure time, the central control module performs a second determination on whether the preset arrival time is accurate based on the actual average speed of the train. Step S5: If the actual average speed is greater than or equal to the preset standard speed, it is determined that the train can reach the next station in time. The preset arrival time is corrected in real time according to the difference between the actual average speed and the second preset speed. The central control module is provided with a first preset speed and a second preset speed, wherein the first preset speed is less than the preset standard speed and less than the second preset speed. Otherwise, the train's average operating speed will be adjusted to the corresponding value based on the difference between the actual average speed and the first preset speed; Step S6: The voice broadcast module updates the preset arrival time and broadcasts the updated arrival time.

2. The train voice broadcast content verification method according to claim 1, characterized in that, The voice broadcast module has a mapping relationship between train stations and voice broadcast content. At any station on the train route, the voice broadcast module obtains the voice broadcast content that has a mapping relationship with the station and broadcasts it. The preset arrival time in the voice broadcast content corresponds to the train timetable.

3. The method for verifying train voice broadcast content according to claim 2, characterized in that, When the departure time at the previous station is less than or equal to the preset departure time, the central control module performs a secondary determination on the accuracy of the preset arrival time of the train based on the actual average speed of the train. If the actual average speed is greater than or equal to the preset standard speed, it is determined that the train can reach the next station in time. If the actual average speed is less than the preset standard speed, the train's preset arrival time will be judged three times based on the first time difference between the departure time of the previous station and the preset departure time.

4. The train voice broadcast content verification method according to claim 3, characterized in that, The central control module compares the actual average speed with the second preset speed under the first preset condition. If the actual average speed is greater than the second preset speed, the preset arrival time is corrected in real time according to the first speed difference. The first speed difference is the difference between the actual average speed and the second preset speed; The first preset condition is that the departure time of the previous station is less than or equal to the preset departure time and the actual average speed is greater than or equal to the preset standard speed.

5. The train voice broadcast content verification method according to claim 4, characterized in that, The central control module has several correction methods for the preset arrival time based on the first speed difference, wherein the correction range of each correction method for the preset arrival time is different.

6. The train voice broadcast content verification method according to claim 5, characterized in that, The central control module, under the second preset condition, performs three checks on the accuracy of the train's preset arrival time based on the first time difference. If the first time difference is less than the first time difference comparison value, and the actual average speed is less than the first preset speed, then it is determined that the preset arrival time of the train is inaccurate, and the central control module adjusts the average running speed of the train according to the second speed difference. In all other cases, it was determined that the train could reach the next station in time. The second speed difference is the difference between the actual average speed and the first preset speed; The second preset condition is that the departure time of the previous station is less than or equal to the preset departure time and the actual average speed is less than the preset standard speed.

7. The train voice broadcast content verification method according to claim 6, characterized in that, The central control module has several adjustment methods for the average train speed based on the second speed difference, and each adjustment method has a different adjustment range for the average train speed.

8. The train voice broadcast content verification method according to claim 7, characterized in that, When the departure time of the train at the previous station is greater than the preset departure time, the central control module calculates the arrival time based on the distance between the train's current position and the station, as well as the real-time average speed. It then calculates a second time difference between the arrival time and the preset arrival time to adjust the train's average speed. The central control module has several adjustment methods for the train's average speed based on the second time difference, and each adjustment method has a different adjustment range for the train's average speed.

9. The method for verifying train voice broadcast content according to claim 8, characterized in that, The central control module compares the adjusted average train speed with the preset maximum speed. If the adjusted average train speed is greater than the preset maximum speed, the train speed is set to the preset maximum speed. The train arrival time is calculated, and the preset arrival time in the voice broadcast is corrected to the actual train arrival time before being broadcast.

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