Train operation control method and device

Abstract

The application provides a train operation control method and device, and the method comprises the following steps: acquiring the second speed of the first train when the first train is in a target area and the first speed of the first train is not acquired; controlling the speed of the second train and / or controlling the speed of the third train based on the second speed; wherein the first speed is acquired by a sensor arranged on the first train; the second speed is acquired by a ground speed measuring device arranged at a preset position of the target area; the second train is the first train in front of the first train; and the third train is the first train behind the first train. The train operation control method and device provided by the application flexibly associate the ground speed measurement and the train speed measurement, use two speed measurement methods to ensure that the safety is not reduced due to poor communication state, the speed control of the train is more smooth, the train is not immediately reduced in speed due to communication abnormalities, and the stability of the control of the train can be improved.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a train operation control method and device. Background Technology

[0002] In rail transit, trains use sensor arrays to calculate their own speed and position, and then inform the ground system of their speed and position. This information is then combined with other positioning methods on the ground system to determine the train's speed and position. This ensures continuous communication between the train and the ground, enabling train control, maintaining multiple train intervals, and achieving orderly operation.

[0003] In the event of a malfunction or damage to the train's sensor array, the train will be unable to obtain its own speed. Additionally, if the speed sensor is in poor working condition, the speed measurement may be unstable or compensation may fail, both of which will prevent the ground system from obtaining the train's transmitted speed. Furthermore, since the train transmits its speed and position wirelessly to the ground, any abnormalities in the wireless communication will also prevent the ground system from obtaining the train's transmitted speed.

[0004] If the ground system is unable to obtain the train's own speed, it will recalculate the train's speed estimate, as well as the safe zone and safe speed for surrounding trains, and inform the surrounding trains of the conclusions. To ensure safety, this usually causes surrounding trains to reduce their speed, and generally also causes the train itself to reduce its speed. This may trigger emergency braking, leading to a decline in passenger experience, increased system energy consumption, train delays, and other issues, affecting the stability and economy of the rail transit system.

[0005] In summary, the existing train operation control methods have poor stability in controlling trains. Summary of the Invention

[0006] This invention provides a train operation control method and apparatus to address the shortcomings of poor stability in train control in the prior art, and to achieve more stable train control.

[0007] This invention provides a train operation control method, comprising:

[0008] If the first train is in the target area and the first speed of the first train has not been obtained, the second speed of the first train shall be obtained.

[0009] Based on the second speed, control the speed of the second train and / or control the speed of the third train;

[0010] The first speed is obtained by a sensor installed on the first train; the second speed is obtained by a ground speed measuring device installed at a preset location in the target area; the second train is the first train in front of the first train; and the third train is the first train behind the first train.

[0011] According to a train operation control method provided by the present invention, the step of controlling the speed of a second train and / or controlling the speed of a third train based on a second speed includes:

[0012] If the second speed is higher than the first speed threshold, a first speed control command is sent to the second train;

[0013] Wherein, the first speed threshold corresponds to the preset position; the first speed control command is used to instruct the second train to maintain its speed.

[0014] According to a train operation control method provided by the present invention, the step of controlling the speed of a second train and / or controlling the speed of a third train based on the second speed further includes:

[0015] If the second speed is lower than the second speed threshold, a second speed control command is sent to the third train;

[0016] The second speed threshold corresponds to the preset position; the second speed control command is used to instruct the third train to reduce its speed.

[0017] According to a train operation control method provided by the present invention, the step of controlling the speed of a second train and / or controlling the speed of a third train based on the second speed further includes:

[0018] When the second speed is lower than or equal to the first speed threshold and the second speed is higher than or equal to the second speed threshold, a third speed control command is sent to the second train and the third train.

[0019] The third speed control command is used to instruct the second train and the third train to maintain their speed.

[0020] The train operation control method provided by the present invention further includes:

[0021] When the first train is in the target area, has not received the first speed, and has not acquired the second speed, a fourth speed control command is sent to the second train and the third train.

[0022] The fourth speed control command is used to instruct the second train and the third train to reduce their speed.

[0023] According to a train operation control method provided by the present invention, after obtaining the second speed of the first train when the first train is in the target area and the first speed of the first train has not been obtained, the method further includes:

[0024] If the first train leaves the target area or the duration for which the first speed is not received from the first train reaches a duration threshold, a fifth speed control command is sent to the second train and the third train.

[0025] The fifth speed control command is used to instruct the second train and the third train to reduce their speed.

[0026] The present invention also provides a train operation control device, comprising:

[0027] The acquisition module is used to acquire the second speed of the first train when the first train is in the target area and the first speed of the first train has not been acquired;

[0028] The control module is used to control the speed of the second train and / or control the speed of the third train based on the second speed;

[0029] The first speed is obtained by a sensor installed on the first train; the second speed is obtained by a ground speed measuring device installed at a preset location in the target area; the second train is the first train in front of the first train; and the third train is the first train behind the first train.

[0030] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the train operation control method described above.

[0031] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the train operation control method as described above.

[0032] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the train operation control method as described above.

[0033] The train operation control method and device provided by this invention flexibly associates ground speed measurement and train speed measurement in target areas where wireless communication is prone to anomalies. By using two speed measurement methods, safety is not reduced due to poor communication conditions. Since the train itself has positioning capabilities, the speed control of the train is smoother in the event of abnormal wireless communication between the train and the ground. The train is not immediately slowed down due to communication anomalies. This improves the usability of the signal system, reduces signal system jitter, ensures more flexible and smooth signal system processing, improves the stability of train control, and enhances the stability and economy of the signal system. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is one of the flowcharts of the train operation control method provided by the present invention;

[0036] Figure 2 This is the second flowchart of the train operation control method provided by the present invention;

[0037] Figure 3 This is a schematic diagram of the train operation control device provided by the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0040] In the description of the embodiments of the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor do they relate to order.

[0041] The following is combined Figures 1 to 4 This invention describes the train operation control method and apparatus provided by the present invention.

[0042] Figure 1This is one of the flowcharts illustrating the train operation control method provided by the present invention. For example... Figure 1 As shown, the executing entity of the train operation control method provided in this embodiment of the invention can be a train operation control device, and the method includes: step 101 and step 102.

[0043] Step 101: If the first train is in the target area and the first speed of the first train has not been obtained, obtain the second speed of the first train.

[0044] The first speed is obtained by a sensor installed on the first train; the second speed is obtained by a ground speed measuring device installed at a preset location in the target area.

[0045] Specifically, the target area can be an area on a rail transit line where wireless communication is prone to problems, such as areas passing through tunnels, mountains, or canyons. In this embodiment of the invention, a ground speed measuring device can be installed at at least one preset location in the target area. The ground speed measuring device installed at a preset location can obtain the speed of trains passing through that preset location based on technologies such as radar speed measurement. The preset location can be referred to as a ground speed measuring point.

[0046] Preferably, the length of the target area can be less than the minimum safe distance between two trains on the rail transit line. In this case, no two trains can exist in the target area during normal operation, thus ensuring a very high probability of normal communication between the trains entering the target area and the ground side.

[0047] Adding ground speed measurement devices in areas prone to communication anomalies can compensate for situations where trains cannot be measured or informed of their speed due to poor short-term communication conditions, thus flexibly linking train speed measurement and ground speed measurement.

[0048] Since the target area is prone to communication anomalies, if a communication anomaly occurs while the ground speed measurement is working normally, the section speed measurement can be used for compensation, thereby reducing the probability that the original communication anomaly will immediately cause the calculation to be occupied.

[0049] Under normal circumstances, the speed of the first train (i.e., the first speed of the first train) can be obtained through sensors installed on the first train itself. The first train can communicate wirelessly with the train operation control device, which can receive the first speed transmitted by the first train.

[0050] When the sensors installed on the first train are in poor working condition, they cannot obtain the first speed of the first train, and therefore the train operation control device does not receive the first speed of the first train.

[0051] Alternatively, if there is an abnormality in the wireless communication between the first train and the train operation control device, even if the sensors installed on the first train itself can obtain the first speed of the first train, the train operation control device may not receive the first speed of the first train.

[0052] If it is determined that the first train is within the target area and the train operation control device has not received the first speed of the first train, the speed of the first train (i.e. the second speed of the first train) can be obtained by a ground speed measuring device set at each preset position through wired communication when the first train passes through each preset position.

[0053] Step 102: Based on the second speed, control the speed of the second train and / or control the speed of the third train.

[0054] The second train is the first train in front of the first train; the third train is the first train behind the first train.

[0055] Specifically, the safety of the operation of trains adjacent to the first train on the rail transit line can be judged based on the second speed of the first train, and the speed of the adjacent trains can be controlled based on the result of the safety judgment.

[0056] Trains adjacent to the first train on this rail transit line may include a second train and a third train.

[0057] The second train is the first train ahead of the first train on the same rail transit line where the first train is running, and that is traveling in the same direction as the first train.

[0058] The third train is the first train following the first train on the same rail transit line as the first train, traveling in the same direction.

[0059] It should be noted that when the first train is in the target area and its first speed has not been obtained, the ground-side train operation control device can control the speed of the second train and / or the speed of the third train based on the second speed of the first train obtained from ground speed measurement, and by issuing speed maintenance commands or not issuing speed reduction commands, in order to ensure safety. Therefore, the first train can temporarily not control its own speed reduction, that is, it can temporarily not perform speed reduction processing.

[0060] It should be noted that since the train operation control device calculates safety based on previous continuous time safety data, the safety profile remains consistent once the first train enters the target area. During the short period the first train moves within the target area, its speed will not change significantly due to acceleration limitations; therefore, not reducing speed in the target area has no impact on safety. Furthermore, ground speed measuring devices can detect the speed of the first train. Therefore, if the speed of the first train does not change abnormally, no speed reduction requirement will be output when calculating the speed of other trains, and this will not affect safety.

[0061] In a more serious situation, where the second train (the preceding train) stops or travels at low speed outside the target area, while the first train (the following train) is traveling normally within the speed measurement zone, and the first train experiences a communication failure and cannot receive instructions from the train control device to reduce its speed, the first train will rely on the last instruction received during normal communication. If the last instruction received by the first train was "normal travel," then the first train will travel normally. If the last instruction received by the first train was "decelerate," then the first train will decelerate, and the distance between it and the second train will be maintained based on the safe distance at the last moment. This is because if the second train decelerates to zero within a certain distance, and if the distance between the following train and the preceding train is greater than the length of the target area, and the first train decelerates to zero within the same distance as the second train, this will only reduce the time the second train spends moving within the target area, without affecting safety.

[0062] Furthermore, since the vehicle in front needs to decelerate within a certain time period, if that time period is very short, the speed of the vehicle in front will not decrease much; if that time period is long, it will inevitably be longer than the time it takes for the vehicle behind to enter and leave the target area, so the vehicle behind can sense it or decelerate in the original manner. In all of the above situations, safety will not be affected.

[0063] Understandably, in the event of a brief communication anomaly, ground speed measurement can be used instead of immediately reducing the speed of trains within the system, thus achieving flexible control.

[0064] This invention flexibly links ground speed measurement and train speed measurement in target areas where wireless communication is prone to anomalies. Using two speed measurement methods ensures that safety is not reduced due to poor communication conditions. Since the train itself has positioning capabilities, speed control of the train is smoother in the event of abnormal wireless communication between the train and the ground. The train is not immediately slowed down due to communication anomalies, which improves the usability of the signal system, reduces jitter in the signal system, ensures more flexible and smooth signal system processing, improves the stability of train control, and enhances the stability and economy of the signal system.

[0065] Based on any of the above embodiments, controlling the speed of the second train and / or the speed of the third train based on the second speed includes: sending a first speed control command to the second train when the second speed is higher than a first speed threshold.

[0066] The first speed threshold corresponds to a preset position; the first speed control command is used to instruct the second train to maintain its speed.

[0067] Specifically, the first speed threshold can be the maximum permissible speed at which the train passes through the preset position.

[0068] Optionally, the first speed threshold can be a predetermined speed at the preset position plus a first deviation value. The first deviation value is a positive number.

[0069] Optionally, the first speed threshold can be a predetermined speed at the preset position multiplied by a first proportional value. The first proportional value is greater than 1.

[0070] The first velocity threshold can be determined based on the actual situation at the preset position. The specific value of the first velocity threshold is not specifically limited in this embodiment of the invention.

[0071] The specified speed at the preset position can be determined based on the actual situation at that preset position. This embodiment of the invention does not specifically limit the value of the specified speed at the preset position.

[0072] The first deviation value can be determined based on the actual situation at the preset location. The specific value of the first deviation value is not specifically limited in this embodiment of the invention. For example, the first deviation value can be 5 km / h.

[0073] The first proportional value can be determined based on the actual situation of the preset position. The specific value of the first proportional value is not specifically limited in this embodiment of the invention. For example, the first proportional value can be 1.1.

[0074] If the second speed of the first train is higher than the first speed threshold, that is, if the second speed of the first train is too fast compared to the prescribed speed at the preset position, the first train may get too close to the second train. In this case, a first speed control command can be sent to the second train so that the second train does not slow down but maintains its speed.

[0075] Optionally, if the second train communicates normally with the train operation control device, a first speed control command can be sent to the second train via wireless communication.

[0076] Optionally, in the event of a communication failure between the second train and the train operation control device (e.g., the second train is also in the target area), a first speed control command can be sent to the second train by controlling the display status of the first target signal light. The first target signal light is the signal light ahead of the second train.

[0077] In this embodiment of the invention, when the second speed of the first train is higher than the first speed threshold, a first speed control command is sent to the second train to control the second train to maintain its speed without slowing down, thus making the speed control of the second train smoother.

[0078] Based on any of the above embodiments, controlling the speed of the second train and / or the speed of the third train based on the second speed further includes: sending a second speed control command to the third train when the second speed is lower than the second speed threshold.

[0079] The second speed threshold corresponds to a preset position; the second speed control command is used to instruct the third train to reduce its speed.

[0080] Specifically, the second speed threshold can be the minimum permissible speed for the train to pass through the preset position. The second speed threshold is less than the first speed threshold.

[0081] Optionally, the second speed threshold can be the standard speed at the preset position minus a second deviation value. The second deviation value is a positive number.

[0082] Optionally, the second speed threshold can be a predetermined speed at the preset position multiplied by a second proportional value. The second proportional value is less than 1.

[0083] The second speed threshold can be determined based on the actual situation at the preset position. The specific value of the second speed threshold is not specifically limited in this embodiment of the invention.

[0084] The specified speed at the preset position can be determined based on the actual situation at that preset position. This embodiment of the invention does not specifically limit the value of the specified speed at the preset position.

[0085] The second deviation value can be determined based on the actual situation at the preset location. The specific value of the second deviation value is not specifically limited in this embodiment of the invention. For example, the second deviation value can be 10 km / h.

[0086] Optionally, the second deviation value may be equal to or not equal to the first deviation value.

[0087] The second ratio value can be determined based on the actual situation of the preset position. The specific value of the second ratio value is not specifically limited in this embodiment of the invention. For example, the second ratio value can be 0.9.

[0088] Optionally, the difference between 1 and the second deviation value may be equal to or not equal to the difference between the first deviation value and 1.

[0089] If the second speed of the first train is lower than the second speed threshold, that is, if the second speed of the first train is too slow compared to the prescribed speed at the preset position, the first train may get too close to the third train. In this case, a second speed control command can be sent to the third train to make the third train slow down.

[0090] Optionally, if the third train communicates normally with the train operation control device, a second speed control command can be sent to the third train wirelessly.

[0091] Optionally, in the event of a communication failure between the third train and the train operation control device (e.g., the third train is also in the target area), a second speed control command can be sent to the third train by controlling the display status of the second target signal light. The second target signal light is the signal light ahead of the third train.

[0092] This invention ensures the safety of train operation by sending a second speed control command to a third train when the second speed of the first train is lower than the second speed threshold, thereby controlling the third train to reduce its speed.

[0093] Based on any of the above embodiments, controlling the speed of the second train and / or the speed of the third train based on the second speed further includes: sending a third speed control command to the second train and the third train when the second speed is lower than or equal to the first speed threshold and the second speed is higher than or equal to the second speed threshold.

[0094] The third speed control command is used to instruct the second and third trains to maintain their speed.

[0095] Specifically, if the second speed of the first train is lower than or equal to the first speed threshold and the second speed of the first train is higher than or equal to the second speed threshold, that is, the second speed of the first train is relatively close to the specified speed of the preset position, a third speed control command can be sent to the second train and the third train so that the second train and the third train do not reduce their speed but maintain their speed.

[0096] Optionally, if the second train communicates normally with the train operation control device, a third speed control command can be sent to the second train via wireless communication.

[0097] Optionally, in the event of a communication failure between the second train and the train operation control device (e.g., the second train is also in the target area), a third speed control command can be sent to the second train by controlling the display status of the first target signal light.

[0098] Optionally, if the third train communicates normally with the train operation control device, a third speed control command can be sent to the third train wirelessly.

[0099] Optionally, in the event of a communication failure between the third train and the train operation control device (e.g., the third train is also in the target area), a third speed control command can be sent to the third train by controlling the display status of the second target signal light.

[0100] In this embodiment of the invention, when the second speed of the first train is lower than or equal to the first speed threshold and the second speed of the first train is higher than or equal to the second speed threshold, a third speed control command is sent to the second train and the third train to control the second train and the third train to maintain their speed without decelerating, thus making the speed control of the second train and the third train smoother.

[0101] Based on any of the above embodiments, the train operation control method further includes: when the first train is in the target area, has not received the first speed, and has not acquired the second speed, sending a fourth speed control command to the second train and the third train.

[0102] The fourth speed control command is used to instruct the second and third trains to reduce their speed.

[0103] Specifically, if the ground speed measuring device set at the preset location also malfunctions or is damaged, i.e., the ground speed measuring fails, the train operation control device cannot obtain the second speed of the first train.

[0104] In this situation, the second and third trains can be slowed down in the existing manner.

[0105] Alternatively, in this case, a fourth speed control command can be sent to the second and third trains to reduce their speed.

[0106] Optionally, if the second train communicates normally with the train operation control device, a fourth speed control command can be sent to the second train wirelessly.

[0107] Optionally, in the event of a communication failure between the second train and the train operation control device (e.g., the second train is also in the target area), a fourth speed control command can be sent to the second train by controlling the display status of the first target signal light.

[0108] Optionally, if the third train communicates normally with the train operation control device, a fourth speed control command can be sent to the third train wirelessly.

[0109] Optionally, in the event of a communication failure between the third train and the train operation control device (e.g., the third train is also in the target area), a fourth speed control command can be sent to the third train by controlling the display status of the second target signal light.

[0110] It should be noted that ground speed measurement is a relatively common technology with low difficulty in use. Ground speed measurement can serve as a compensation method. If this compensation method also fails, the first train can be notified to proceed according to the existing procedures, and the train operation control device on the ground side will also proceed according to the existing procedures, thereby ensuring a flexible connection with the original safety design.

[0111] Only in the event of a communication failure between the first train and the ground, and the failure of ground speed measurement, will the existing ground-based positioning method be used, without changing the existing implementation method, and the existing processing capacity of the signal system can still be guaranteed.

[0112] This invention provides a way to restore the existing control method when both ground speed measurement and train speed measurement fail, thus ensuring the safety of train operation.

[0113] Based on any of the above embodiments, after acquiring the second speed of the first train when the first train is in the target area and the first speed of the first train has not been acquired, the method further includes: sending a fifth speed control command to the second train and the third train when the first train leaves the target area or the duration of not acquiring the first speed of the first train reaches a duration threshold.

[0114] The fifth speed control command is used to instruct the second and third trains to reduce their speed.

[0115] Specifically, if the duration of failure to obtain the first train's first speed reaches a certain threshold, indicating that the communication failure has exceeded the threshold and communication cannot be restored after the predetermined time, the second and third trains can be slowed down according to existing procedures.

[0116] Optionally, after the first train leaves the target area, the second and third trains can be slowed down in the existing manner.

[0117] Optionally, reducing the speed of the second and third trains in an existing manner may include sending a fifth speed control command to the second and third trains.

[0118] Optionally, if the second train communicates normally with the train operation control device, a fifth speed control command can be sent to the second train wirelessly.

[0119] Optionally, in the event of a communication failure between the second train and the train operation control device (e.g., the second train is also in the target area), a fifth speed control command can be sent to the second train by controlling the display status of the first target signal light.

[0120] Optionally, if the third train communicates normally with the train operation control device, a fifth speed control command can be sent to the third train wirelessly.

[0121] Optionally, in the event of a communication failure between the third train and the train operation control device (e.g., the third train is also in the target area), a fifth speed control command can be sent to the third train by controlling the display status of the second target signal light.

[0122] It should be noted that if the first train leaves the target area or the duration of the first train's first speed not being obtained reaches the time threshold, the first train can also reduce its speed in the existing manner.

[0123] The present invention ensures the safety of train operation by sending a fifth speed control command to the second and third trains when the first train leaves the target area or when the duration of the failure to obtain the first speed of the first train reaches a time threshold.

[0124] To facilitate understanding of the above embodiments of the present invention, the implementation process of the train operation control method will be described below through an example.

[0125] Figure 2 This is the second flowchart illustrating the train operation control method provided by this invention. Figure 2 As shown, the train operation control method may include the following steps:

[0126] Step 201: Conduct ground speed measurement in the target area.

[0127] Step 202: Determine if the train communication is normal.

[0128] Determine if communication with the first train is normal. If normal, proceed to step 203; otherwise, proceed to step 204.

[0129] Step 203: Process according to train speed measurement.

[0130] That is, based on the first velocity, the existing method is used for processing.

[0131] Step 204: Process the data based on ground speed measurement.

[0132] That is, processing is performed according to the second speed and in accordance with the manner provided in any embodiment of the present invention.

[0133] Step 205: Determine whether to stop processing.

[0134] If yes, stop; otherwise, return to step 201.

[0135] For example, assuming the entire line is 50km long, the wireless communication signal is unstable between 5-7km due to factors such as tunnels. Ground speed measurement is installed in the 5-7km range (the target area). There are platforms at 4km and 8km respectively, and trains in both directions pass through this 5-7km range. A single-direction system uses one independent ground speed measurement device every 400 meters, and the other direction also uses one independent ground speed measurement device every 400 meters, forming two groups of five ground speed measurement devices at that location.

[0136] The train departs from station 4km and travels to station 8km, with a maximum speed of 80km / h.

[0137] The train's automatic driving system passed through a group of 6 locations at speeds of 60km / h, 70km / h, 80km / h, 80km / h, 70km / h, and 60km / h, respectively, at a distance of 5-7km.

[0138] The speeds measured at the six locations of the ground speed measuring device were also 60km / h, 70km / h, 80km / h, 80km / h, 70km / h, and 60km / h.

[0139] Because the train's acceleration is relatively small at each 400-meter interval, it cannot come to a complete stop within that section. Therefore, the ground speed measuring devices at two consecutive preset locations can detect the train's second speed.

[0140] The speed deviation is within ±5 km / h. That is, when the speed is 5 km / h higher than the specified speed (i.e., the set speed value), it may get too close to the train in front; when the speed is 5 km / h lower than the specified speed, it may get too close to the train behind.

[0141] During normal operation, two trains cannot fit into the target area, so the possibility of normal communication between the trains entering the area and the ground is very high.

[0142] Three trains are located: Train 1 is located at a distance greater than 7km, Train 3 is located at a distance less than 5km, and Train 2 is located at a distance between 5km and 7km.

[0143] Scenario 1: Train 2 passes through the ground speed measuring point at a specified speed, and at the same time, communication between Train 2 and the ground is normal. At this time, the ground can use the speed information provided by Train 2 during continuous communication (i.e., the first speed) to determine the speed of Train 2.

[0144] Scenario 2: Train 2 passes the ground speed measurement point at a speed lower than the prescribed speed. At the same time, the communication between Train 2 and the ground system is normal. At this time, the ground system can use the speed information provided by Train 2 during continuous communication to determine the speed of Train 2. Then, it will notify Train 3 to reduce its speed to maintain safety.

[0145] Scenario 3: Train 2 passes through the ground speed measurement point at a speed higher than the prescribed speed. At the same time, the communication between Train 2 and the ground system is normal. At this time, the ground system can use the speed information provided by Train 2 during continuous communication to determine the speed of Train 2. Then, it will notify Train 1 to maintain the speed to keep it safe.

[0146] Scenario 4: Train 2 passes through the ground speed measurement point at the prescribed speed. At the same time, the communication between Train 2 and the ground system is abnormal. In this case, the ground system can obtain the speed of Train 2 by ground speed measurement.

[0147] Scenario 5: Train 2 passes the ground speed measurement point at a speed lower than the prescribed speed. At the same time, the communication between Train 2 and the ground system is abnormal. In this case, the ground system can obtain the speed of Train 2 by ground speed measurement. At this time, it will notify Train 3 to reduce its speed to maintain safety.

[0148] Scenario 6: Train 2 passes through a ground speed measurement point at a speed higher than the prescribed speed. At the same time, communication between Train 2 and the ground system is abnormal. In this case, the ground system can obtain the speed of Train 2 through ground speed measurement. Train 1 will then be notified to maintain its speed to ensure safety.

[0149] Scenario 7: When train 2 is located at a ground speed measurement point, the ground speed measurement point malfunctions and cannot measure speed. At the same time, the communication between train 2 and the ground system is abnormal. At this time, the ground system uses the occupation calculation to determine the position of the train and provides speed control requirements to train 1 and train 3. Note that at this time, both speed measurement systems are malfunctioning at the same time.

[0150] The train operation control device provided by the present invention is described below. The train operation control device described below can be referred to in correspondence with the train operation control method described above.

[0151] Figure 3 This is a schematic diagram of the train operation control device provided by the present invention. Based on any of the above embodiments, as... Figure 3 As shown, the device includes an acquisition module 301 and a control module 302, wherein:

[0152] The acquisition module 301 is used to acquire the second speed of the first train when the first train is in the target area and the first speed of the first train has not been acquired;

[0153] Control module 302 is used to control the speed of the second train and / or control the speed of the third train based on the second speed;

[0154] The first speed is obtained by a sensor installed on the first train; the second speed is obtained by a ground speed measuring device installed at a preset location in the target area; the second train is the first train in front of the first train; and the third train is the first train behind the first train.

[0155] Specifically, the acquisition module 301 and the control module 302 can be electrically connected.

[0156] If it is determined that the first train is within the target area and the train operation control device has not received the first speed of the first train, when the first train passes through each preset position, the acquisition module 301 can acquire the speed of the first train (i.e. the second speed of the first train) acquired by the ground speed measuring device set at the preset position through wired communication.

[0157] The control module 302 can determine the safety of the operation of trains adjacent to the first train on the rail transit line based on the second speed of the first train, and control the speed of the adjacent trains based on the result of the safety determination.

[0158] Optionally, the control module 302 can be specifically used to send a first speed control command to the second train when the second speed is higher than the first speed threshold.

[0159] The first speed threshold corresponds to a preset position; the first speed control command is used to instruct the second train to maintain its speed.

[0160] Optionally, the control module 302 may also be specifically used to send a second speed control command to the third train when the second speed is lower than the second speed threshold.

[0161] The second speed threshold corresponds to a preset position; the second speed control command is used to instruct the third train to reduce its speed.

[0162] Optionally, the control module 302 may also be specifically configured to send a third speed control command to the second train and the third train when the second speed is lower than or equal to the first speed threshold and the second speed is higher than or equal to the second speed threshold.

[0163] The third speed control command is used to instruct the second and third trains to maintain their speed.

[0164] Optionally, the control module 302 may also be used to send a fourth speed control command to the second and third trains when the first train is in the target area, has not received the first speed, and has not acquired the second speed.

[0165] The fourth speed control command is used to instruct the second and third trains to reduce their speed.

[0166] Optionally, the control module 302 may also send a fifth speed control command to the second and third trains if the first train leaves the target area or if the duration of the first train's first speed not being acquired reaches a duration threshold.

[0167] The fifth speed control command is used to instruct the second and third trains to reduce their speed.

[0168] The train operation control device provided in this embodiment of the invention is used to execute the train operation control method described above. Its implementation method is the same as that of the train operation control method provided by this invention, and it can achieve the same beneficial effects. It will not be described again here.

[0169] This train operation control device is used in the train operation control methods of the foregoing embodiments. Therefore, the descriptions and definitions in the train operation control methods of the foregoing embodiments can be used to understand the execution modules in the embodiments of the present invention.

[0170] This invention flexibly links ground speed measurement and train speed measurement in target areas where wireless communication is prone to anomalies. Using two speed measurement methods ensures that safety is not reduced due to poor communication conditions. Since the train itself has positioning capabilities, speed control of the train is smoother in the event of abnormal wireless communication between the train and the ground. The train is not immediately slowed down due to communication anomalies, which improves the usability of the signal system, reduces jitter in the signal system, ensures more flexible and smooth signal system processing, improves the stability of train control, and enhances the stability and economy of the signal system.

[0171] Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention, such as... Figure 4 As shown, the electronic device may include a processor 410, a communication interface 420, a memory 430, and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other via the communication bus 440. The processor 410 can call logical instructions in the memory 430 to execute a train operation control method, which includes: acquiring a second speed of the first train when the first train is in the target area and its first speed has not been acquired; controlling the speed of the second train and / or controlling the speed of a third train based on the second speed; wherein the first speed is acquired by a sensor installed on the first train; the second speed is acquired by a ground speed measuring device installed at a preset location in the target area; the second train is the first train in front of the first train; and the third train is the first train behind the first train.

[0172] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0173] The processor 410 in the electronic device provided in this application embodiment can call the logical instructions in the memory 430. Its implementation method is consistent with the implementation method of the train operation control method provided in this application, and can achieve the same beneficial effects. It will not be described again here.

[0174] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions, and when the program instructions are executed by a computer, the computer is able to execute the train operation control method provided by the above methods. The method includes: when the first train is in the target area and the first speed of the first train has not been obtained, obtaining the second speed of the first train; and controlling the speed of the second train and / or controlling the speed of the third train based on the second speed; wherein the first speed is obtained by a sensor installed on the first train; the second speed is obtained by a ground speed measuring device installed at a preset position in the target area; the second train is the first train in front of the first train; and the third train is the first train behind the first train.

[0175] When the computer program product provided in this application is executed, it implements the above-mentioned train operation control method. Its specific implementation method is consistent with the implementation method described in the aforementioned method embodiments, and can achieve the same beneficial effects, which will not be repeated here.

[0176] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, is implemented to perform the train operation control methods provided above. The method includes: acquiring a second speed of the first train when the first train is in a target area and the first speed of the first train has not been acquired; controlling the speed of the second train and / or controlling the speed of a third train based on the second speed; wherein the first speed is acquired by a sensor installed on the first train; the second speed is acquired by a ground speed measuring device installed at a preset position in the target area; the second train is the first train in front of the first train; and the third train is the first train behind the first train.

[0177] When the computer program stored on the non-transitory computer-readable storage medium provided in this application embodiment is executed, it implements the above-mentioned train operation control method. Its specific implementation method is consistent with the implementation method described in the aforementioned method embodiment and can achieve the same beneficial effect, which will not be repeated here.

[0178] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0179] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0180] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A train operation control method characterized by comprising: The application relates to a method for controlling the speed of a train, comprising the following steps: acquiring a second speed of the first train when the first train is in a target area and the first speed of the first train is not acquired; the target area is an area where wireless communication is prone to abnormality; controlling the speed of a second train and / or controlling the speed of a third train based on the second speed; sending a fourth speed control instruction to the second train and the third train when the first train is in the target area, the first speed is not received and the second speed is not acquired; wherein the first speed is acquired by a sensor arranged on the first train; the second speed is acquired by a ground speed measuring device arranged at a preset position of the target area; the second train is a first train in front of the first train; the third train is a first train behind the first train; the fourth speed control instruction is used for instructing the second train and the third train to reduce speed; when the second train communicates normally, the fourth speed control instruction is sent to the second train through wireless communication; when the second train communicates abnormally, the fourth speed control instruction is sent to the second train by controlling the display state of a first target signal lamp in front of the second train; when the third train communicates normally, the fourth speed control instruction is sent to the third train through wireless communication; when the third train communicates abnormally, the fourth speed control instruction is sent to the third train by controlling the display state of a second target signal lamp in front of the third train.

2. The train operation control method according to claim 1, characterized by, controlling the speed of the second train and / or controlling the speed of the third train based on the second speed comprises: sending a first speed control instruction to the second train when the second speed is higher than a first speed threshold value; wherein the first speed threshold value corresponds to the preset position; the first speed control instruction is used for instructing the second train to maintain speed.

3. The train operation control method according to claim 2, characterized by, controlling the speed of the second train and / or controlling the speed of the third train based on the second speed further comprises: sending a second speed control instruction to the third train when the second speed is lower than a second speed threshold value; wherein the second speed threshold value corresponds to the preset position; the second speed control instruction is used for instructing the third train to reduce speed.

4. The train operation control method according to claim 3, characterized by controlling the speed of the second train and / or controlling the speed of the third train based on the second speed further comprises: sending a third speed control instruction to the second train and the third train when the second speed is lower than or equal to the first speed threshold value and the second speed is higher than or equal to the second speed threshold value; wherein the third speed control instruction is used for instructing the second train and the third train to maintain speed.

5. The train operation control method according to any one of claims 1 to 4, characterized by, after acquiring the second speed of the first train when the first train is in the target area and the first speed of the first train is not acquired, the method further comprises the following steps: In a case where the first train leaves the target area or a time length of not receiving the first speed sent by the first train reaches a time length threshold, a fifth speed control instruction is sent to the second train and the third train; The fifth speed control instruction is used to instruct the second train and the third train to reduce speed.

6. A train operation control device characterized by comprising: The method comprises: A first speed of the first train is acquired in a case where the first train is in a target area and the first speed of the first train is not acquired; The target area is an area where wireless communication is prone to abnormality; A control module is used to control a speed of a second train and / or control a speed of a third train based on the second speed; The control module is further used to: In a case where the first train is in the target area, the first speed is not received, and the second speed is not acquired, a fourth speed control instruction is sent to the second train and the third train; The first speed is acquired by a sensor arranged on the first train; the second speed is acquired by a ground speed measuring device arranged at a preset position of the target area; the second train is a first train in front of the first train; the third train is a first train behind the first train; the fourth speed control instruction is used to instruct the second train and the third train to reduce speed; In a case where the second train communicates normally, the fourth speed control instruction is sent to the second train in a wireless communication manner; in a case where the second train communicates abnormally, the fourth speed control instruction is sent to the second train in a manner of controlling a display state of a first target signal lamp, the first target signal lamp being a signal lamp in front of the second train; In a case where the third train communicates normally, the fourth speed control instruction is sent to the third train in a wireless communication manner; in a case where the third train communicates abnormally, the fourth speed control instruction is sent to the third train in a manner of controlling a display state of a second target signal lamp, the second target signal lamp being a signal lamp in front of the third train.

7. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor implements the train operation control method according to any one of claims 1 to 5 when executing the program.

8. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program implements the train operation control method according to any one of claims 1 to 5 when executed by the processor.

9. A computer program product comprising a computer program, characterized in that, The computer program implements the train operation control method according to any one of claims 1 to 5 when executed by the processor.

Images