Gap detection method, device, equipment and storage medium

Abstract

This invention provides a gap detection method, apparatus, device, and storage medium. The method includes: upon receiving a gap detection command from an interlocking system, detecting the gap between a platform screen door and a train door based on a first detection accuracy to obtain a first gap detection result. The gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's operating speed is zero; transmitting the first gap detection result to the train's onboard controller via the interlocking system; and upon receiving an indication message from the onboard controller via the interlocking system, detecting the gap based on a second detection accuracy to obtain a second gap detection result. The indication message is sent by the onboard controller when it determines that the first gap detection result indicates there are no obstacles in the gap and the train's operating speed is non-zero. The second detection accuracy is less than the first detection accuracy. This invention can improve train operation safety.

Description

Technical Field

[0001] This invention relates to the field of detection technology, and in particular to a gap detection method, apparatus, device, and storage medium. Background Technology

[0002] With the rapid development of urban rail transit, public transportation such as subways and light rails have become an important choice for people's daily travel. The detection of the gap between the platform and the train is an important part of rail transit safety management, because the existence of platform gaps may not only cause passengers to fall when getting on and off the train, but may also cause more serious safety accidents such as objects falling or people getting stuck.

[0003] In existing technologies, during the train's departure from the station, detection equipment is typically used to continuously monitor the gaps between platforms for obstacles to ensure safe operation. When an obstacle is detected, the train is brought to an emergency stop.

[0004] However, false alarms may occur during obstacle detection, reducing the safety of train operation. Summary of the Invention

[0005] This invention provides a gap detection method, apparatus, device, and storage medium to address the shortcomings of low train operation safety in the prior art and achieve the goal of improving train operation safety.

[0006] This invention provides a gap detection method, applied to a detection device, the method comprising:

[0007] Upon receiving a gap detection command from the interlocking system, the gap between the platform screen door and the train door is detected based on a first detection accuracy to obtain a first gap detection result. The gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's operating speed is zero.

[0008] The first gap detection result is sent to the train's onboard controller via the interlocking system;

[0009] Upon receiving the instruction information sent by the vehicle controller through the interlocking system, the gap is detected based on the second detection accuracy to obtain the second gap detection result. The instruction information is sent by the vehicle controller when it determines that the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero. The second detection accuracy is less than the first detection accuracy.

[0010] According to a gap detection method provided by the present invention, the method further includes:

[0011] Upon receiving the gap detection command from the interlocking system and during the startup process, the detection device sends status information indicating the presence of an obstacle in the gap to the on-board controller via the interlocking system. This status information is used to instruct the on-board controller to prohibit the train from running.

[0012] According to a gap detection method provided by the present invention, the method further includes:

[0013] The vehicle controller receives a gap stop detection command sent by the vehicle controller through the interlocking system. The gap stop detection command is sent by the vehicle controller when it determines that the rear of the train has left the station, or when the communication between the vehicle controller and the interlocking system is interrupted.

[0014] In response to the gap stop detection command, the detection of the gap is stopped.

[0015] According to a gap detection method provided by the present invention, the method further includes:

[0016] Obtain the first detection frequency corresponding to the first detection accuracy;

[0017] Based on the correspondence between time periods and frequency adjustment values, determine the target frequency adjustment value corresponding to the target time period in which the current moment is located;

[0018] Determine the difference between the first detection frequency and the target frequency adjustment value;

[0019] The difference is determined as the second detection frequency corresponding to the second detection accuracy.

[0020] The present invention also provides a gap detection method, applied to an on-board controller, the method comprising:

[0021] Send a locking signal to the interlocking system to indicate that the train door is locked. The locking signal is used to instruct the interlocking system to send a gap detection command to the detection device when the platform screen door is locked and the train's running speed is zero. The gap detection command is used to instruct the detection device to detect the gap between the platform screen door and the train door based on a first detection accuracy, and obtain a first gap detection result.

[0022] Receive the first gap detection result sent by the detection device through the interlock;

[0023] When the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero, the interlocking system sends an instruction message to the detection device. The instruction message is used to instruct the detection device to detect the gap based on a second detection accuracy to obtain a second gap detection result. The second detection accuracy is less than the first detection accuracy.

[0024] According to a gap detection method provided by the present invention, the method further includes:

[0025] Upon receiving status information from the detection device via the interlocking system indicating the presence of an obstacle in the gap, the train is controlled to cease operation; the status information is sent by the detection device upon receiving the gap detection command from the interlocking system and during the startup process.

[0026] According to a gap detection method provided by the present invention, the method further includes:

[0027] In the event that the rear of the train has departed the station, or the communication between the onboard controller and the interlocking system is interrupted, a gap stop detection command is sent to the detection device through the interlocking system. The gap stop detection command is used to instruct the detection device to stop detecting the gap.

[0028] The present invention also provides a gap detection device, comprising:

[0029] The detection module is used to detect the gap between the platform screen door and the train door based on a first detection accuracy when it receives a gap detection command sent by the interlocking system, and obtain a first gap detection result. The gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's running speed is zero.

[0030] A transmitting module is used to transmit the first gap detection result to the on-board controller of the train through the interlocking system;

[0031] The detection module is further configured to detect the gap based on a second detection accuracy when receiving an indication message sent by the vehicle controller through the interlocking system, and obtain a second gap detection result. The indication message is sent by the vehicle controller when it determines that the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero. The second detection accuracy is less than the first detection accuracy.

[0032] The present invention also provides a gap detection device, comprising:

[0033] The sending module is used to send a locking signal to the interlocking system to indicate that the train door is locked. The locking signal is used to instruct the interlocking system to send a gap detection command to the detection device when the platform screen door is locked and the train's running speed is zero. The gap detection command is used to instruct the detection device to detect the gap between the platform screen door and the train door based on a first detection accuracy, and obtain a first gap detection result.

[0034] The receiving module is used to receive the first gap detection result sent by the detection device through the interlock;

[0035] The sending module is further configured to send instruction information to the detection device through the interlocking system when the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero. The instruction information is used to instruct the detection device to detect the gap based on a second detection accuracy to obtain a second gap detection result, wherein the second detection accuracy is less than the first detection accuracy.

[0036] 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 computer program to implement any of the gap detection methods described above.

[0037] 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 gap detection method as described above.

[0038] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements any of the gap detection methods described above.

[0039] The gap detection method, apparatus, device, and storage medium provided by this invention, upon receiving a gap detection command from the interlocking system, detects the gap between the platform screen door and the train door based on a first detection accuracy, obtaining a first gap detection result. This gap detection command is sent by the interlocking system when the train door and platform screen door are locked, and the train's operating speed is zero. The first gap detection result is then sent to the train's onboard controller via the interlocking system. Upon receiving an indication from the onboard controller via the interlocking system, the gap is detected based on a second detection accuracy, obtaining a second gap detection result. This indication is sent by the onboard controller after determining that the first gap detection result indicates there are no obstacles in the gap, and the train's operating speed is non-zero. The second detection accuracy is lower than the first detection accuracy. Because the higher first detection accuracy is used to detect the gap when the train's operating speed is zero, i.e., before it has begun to leave the station, it can prevent passengers or objects from falling into the gap, improving operational safety. To prevent emergency stops caused by false alarms when a train is leaving a station, the detection accuracy can be appropriately reduced, and a second detection accuracy can be used to detect gaps. This can reduce the probability of false alarms, decrease the number of emergency stops, and improve the passenger experience and driving safety. Attached Figure Description

[0040] 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 from these drawings without creative effort.

[0041] Figure 1 This is one of the flowcharts illustrating the gap detection method provided in an embodiment of the present invention.

[0042] Figure 2 This is a second schematic flowchart of the gap detection method provided in an embodiment of the present invention.

[0043] Figure 3 The signaling flowchart is shown in the embodiment of the present invention for the gap detection method.

[0044] Figure 4 This is one of the structural schematic diagrams of the gap detection device provided in the embodiments of the present invention.

[0045] Figure 5 This is a second schematic diagram of the gap detection device provided in an embodiment of the present invention.

[0046] Figure 6 This is a schematic diagram of the physical structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0047] 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.

[0048] Before introducing the gap detection method provided in the embodiments of the present invention, the terms involved in the embodiments of the present invention will be explained:

[0049] Gap Detection System: The gap detection system is mainly used to detect the gap between the subway platform screen doors and the train. Once a person or foreign object is detected, the system will issue an alarm in time to prevent the subway from continuing to run, thereby avoiding the occurrence of safety accidents.

[0050] The Vehicle On-Board Controller (VOBC) is a key component of the metro signaling system. It is primarily responsible for implementing Automatic Train Protection (ATP) and Automatic Train Operation (ATO) functions. The VOBC system continuously communicates with the train control center to monitor the train's operating status, including speeding, overshooting of the target point, and door status, ensuring the train operates within a safe safety envelope. When a potential safety risk is detected, the system automatically applies emergency braking.

[0051] Computer-based interlocking (CI) is a crucial component of the subway signaling system. Its main functions are to ensure the safety of subway operations, coordinate train runs, and improve transportation efficiency. This system establishes interrelationships between signals, switches, and routes through technical means to ensure safe train operation at stations.

[0052] Currently, after the gap detection system detects the gap between the platform screen doors and the train, if no obstacle is detected, the departure signal will open normally, and the VOBC (Vehicle Controller Regulator) will control the train to depart normally according to the departure signal. During the train's departure process, the gap detection system will continuously perform high-precision detection until the train has completely left the station, and will continue to detect for a certain period of time. Once an obstacle is detected, the VOBC will control the train to make an emergency stop. However, because the gap detection system uses continuous high-precision detection, the possibility of false alarms is relatively high, and an emergency stop would reduce the safety of train operation.

[0053] To address the aforementioned problems, this invention provides a gap detection method. In this method, when the train doors and platform screen doors are locked and the train's speed is zero, to prevent passengers or luggage from falling or getting stuck, the detection device can detect the gap between the platform screen doors and the train doors with a relatively high first detection accuracy. During the train's departure from the station, the detection device can detect the gap with a second detection accuracy, where the second accuracy is lower than the first detection accuracy. Because a relatively lower detection accuracy can be used to detect the gap during departure, the probability of false alarms is reduced, the number of emergency stops is decreased, and the safety of train operation is improved.

[0054] The following combination Figures 1-3 The gap detection method provided by the embodiments of the present invention is described below. The embodiments of the present invention can be applied to scenarios in subway systems where the gap between platform screen doors and trains needs to be detected. The execution subject of this method can be a detection device, a computer, a server, a server cluster, or a specially designed electronic device, or it can be a gap detection device installed in the electronic device, which can be implemented through software, hardware, or a combination of both.

[0055] Figure 1 This is one of the flowcharts illustrating the gap detection method provided in this embodiment of the invention, such as... Figure 1 As shown, the method includes:

[0056] Step 101: Upon receiving the gap detection command from the interlocking system, the gap between the platform screen door and the train door is detected based on the first detection accuracy to obtain the first gap detection result. The gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's running speed is zero.

[0057] In this step, when the train doors and platform screen doors are functioning normally, after the train doors close and lock, the train's VOBC (Vehicle Controller Bridge) will send information indicating that the doors are closed and locked to the interlocking system. Upon detecting that both the train doors and platform screen doors are closed and locked, and if the interlocking system determines that the train's current speed is zero, it will send a gap detection command, which is a pulse signal, to the detection equipment. The train's speed is transmitted to the interlocking system by the VOBC.

[0058] After receiving a gap detection command from the interlocking system, the detection equipment will detect the gap between the platform screen door and the train door based on a first detection accuracy, obtaining a first gap detection result. This first gap detection result includes whether an obstacle exists in the gap or not. The detection equipment can be any sensor capable of detecting obstacles, such as an infrared sensor or a vision sensor. In practice, multiple detection devices will be installed on the platform, forming a gap detection system.

[0059] Step 102: Send the first gap detection result to the train's onboard controller via the interlocking system.

[0060] In this step, during the period when the train doors are locked, the platform screen doors are locked, and the train's operating speed is zero, the detection equipment will continuously detect the gap according to the first detection accuracy, thus obtaining multiple continuous first gap detection results. Furthermore, since multiple detection devices are installed on the platform, the results detected by these multiple devices can be aggregated or processed into a single first gap detection result.

[0061] The detection equipment sends the first gap detection result to the interlocking system, which then transmits the first gap detection result to the train's VOBC.

[0062] Step 103: Upon receiving the instruction information sent by the vehicle controller through the interlocking system, the gap is detected based on the second detection accuracy to obtain the second gap detection result. The instruction information is sent by the vehicle controller when it determines that the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero. The second detection accuracy is less than the first detection accuracy.

[0063] In this step, when the VOBC determines that the first gap detection result indicates there are no obstacles in the gap and the departure time has arrived, it will control the train to depart normally according to the departure signal. During the train's departure, the VOBC will send an instruction to the interlocking system, which will then transmit this instruction to the detection equipment via transparent transmission. The detection equipment will detect the gap between the train door and the platform screen door based on a second detection accuracy, obtaining a second gap detection result. The second detection accuracy is lower than the first detection accuracy. Because the detection equipment reduces its detection accuracy during the train's departure, the probability of false alarms is reduced, and the number of emergency stops is decreased, greatly improving passenger experience and operational safety.

[0064] The gap detection method provided in this invention, upon receiving a gap detection command from the interlocking system, detects the gap between the platform screen door and the train door based on a first detection accuracy to obtain a first gap detection result. This gap detection command is sent by the interlocking system when the train door and platform screen door are locked, and the train's operating speed is zero. The first gap detection result is then sent to the train's onboard controller via the interlocking system. Upon receiving an indication from the onboard controller via the interlocking system, the gap is detected based on a second detection accuracy to obtain a second gap detection result. This indication is sent by the onboard controller when it determines that the first gap detection result indicates there are no obstacles in the gap, and the train's operating speed is non-zero. The second detection accuracy is lower than the first detection accuracy. Because the higher first detection accuracy is used to detect the gap when the train's operating speed is zero, i.e., before it has begun to leave the station, it can prevent passengers or objects from falling into the gap, thus improving operating safety. To prevent emergency stops caused by false alarms when a train is leaving a station, the detection accuracy can be appropriately reduced, and a second detection accuracy can be used to detect gaps. This can reduce the probability of false alarms, decrease the number of emergency stops, and improve the passenger experience and driving safety.

[0065] For example, based on the above embodiments, when the detection device receives the gap detection command sent by the interlocking system and during the startup process, the detection device sends status information indicating the presence of an obstacle in the gap to the on-board controller through the interlocking system. The status information is used to instruct the on-board controller to control the train to stop running.

[0066] Specifically, after receiving the gap detection command from the interlocking system, the detection equipment will start. During the startup process, before the detection equipment begins detecting, to prevent the train from deviating from the station and causing a safety accident, the detection equipment will continuously send status information indicating the presence of an obstacle in the gap to the interlocking system. This status information can be, for example, a low level. The interlocking system will continuously forward this status information indicating the presence of an obstacle in the gap to the train's onboard controller. Upon receiving this status information, the onboard controller will control the train to stop running, thereby preventing the train from deviating from the station.

[0067] In this embodiment, during the activation of the detection equipment, that is, before the detection begins, the system sends status information indicating the presence of an obstacle in the gap to the on-board controller via the interlocking system. In this way, the on-board controller will prevent the train from leaving the station, thereby preventing a safety accident caused by the train not receiving the indication of the presence of an obstacle in the gap if a passenger or luggage falls into the gap or gets stuck during the activation of the detection equipment. This greatly improves driving safety.

[0068] For example, based on the above embodiments, the detection device receives a gap stop detection command sent by the on-board controller through the interlocking system. The gap stop detection command is sent by the on-board controller when it determines that the rear of the train has left the station, or when the communication between the on-board controller and the interlocking system is interrupted. In response to the gap stop detection command, the detection of the gap is stopped.

[0069] Specifically, in one possible implementation, after the onboard controller determines that the rear of the train has completely left the station, the onboard controller will send a gap stop detection command to the interlocking system. The interlocking system will forward the gap stop detection command to the detection equipment, and the detection equipment will enter a standby state and stop detecting the gap.

[0070] In another possible implementation, when the onboard controller detects a communication interruption with the interlocking system, it indicates that the distance between the onboard controller and the interlocking system is too great, meaning the train has already left the station. At this point, the onboard controller will send a gap stop detection command to the detection equipment via the interlocking system. Upon receiving this command, the detection equipment enters a standby state and stops detecting the gap. The gap stop detection command can be a pulse signal or other signal that indicates the detection equipment should stop gap detection.

[0071] In this embodiment, when the on-board controller determines that the rear of the train has left the station or when the communication between the on-board controller and the interlocking system is interrupted, it will send a gap stop detection command to the detection device through the interlocking system. The detection device will then stop detecting the gap. Thus, after the train has completely left the station, there is no point in continuing to detect the gap. Therefore, the detection device will be controlled to enter a standby state, which can reduce the energy consumption of the detection device.

[0072] For example, based on the above embodiments, the determination of the second detection accuracy can be performed in the following manner:

[0073] Obtain the first detection frequency corresponding to the first detection accuracy. Based on the correspondence between time period and frequency adjustment value, determine the target frequency adjustment value corresponding to the target time period at the current moment, and determine the difference between the first detection frequency and the target frequency adjustment value. Then, determine the difference as the second detection frequency corresponding to the second detection accuracy.

[0074] Specifically, the detection frequency refers to the number of times the gap is detected. The higher the detection frequency, the higher the detection accuracy. For example, assuming the first detection frequency is 10 times / second, then when the train door is closed and locked, the platform screen door is closed and locked, and the train speed is zero, the detection will be performed at a frequency of 10 times per second.

[0075] Furthermore, during peak subway travel times, the large number of passengers increases the risk of falls or getting stuck. For example, between 7:00 AM and 10:00 AM, and between 5:00 PM and 7:00 PM, subway ridership is particularly high, increasing the risk of falls or luggage getting stuck while squeezing onto the train. During off-peak hours, fewer passengers reduce the risk of falls or getting stuck. Therefore, even if the detection accuracy of the monitoring equipment is lowered during train departure, this adjustment value will be dynamically adjusted based on the current time period. Specifically, a pre-defined correspondence between time periods and frequency adjustment values ​​can be established, and the target time period can be determined. By querying the aforementioned correspondence, the target frequency adjustment value corresponding to the target time period can be determined. The difference between the first detection frequency and the target frequency adjustment value is determined as the second detection frequency corresponding to the second detection accuracy. In other words, the second detection frequency corresponding to the second detection accuracy is obtained by reducing the target frequency adjustment value from the first detection frequency. By adjusting the detection frequency, the second detection accuracy can be adjusted.

[0076] In this embodiment, by pre-setting the correspondence between time periods and frequency adjustment values, the first detection frequency can be adjusted based on the target frequency adjustment value corresponding to the target time period in which the current moment is located. This makes the final first detection frequency related to the time period. During periods with low traffic, the first detection frequency can be reduced more to reduce the power consumption of the detection equipment. During periods with high traffic, the first detection frequency can be reduced less, thereby better ensuring the safety of train operation.

[0077] Figure 2 This is a second flowchart illustrating the gap detection method provided in this embodiment of the invention. The executing entity in this embodiment is an on-board controller. Figure 2 As shown, the method includes:

[0078] Step 201: Send a locking signal to the interlocking system to indicate that the train doors are locked. The locking signal is used to instruct the interlocking system to send a gap detection command to the detection equipment when the platform screen door is locked and the train speed is zero. The gap detection command is used to instruct the detection equipment to detect the gap between the platform screen door and the train doors based on a first detection accuracy, and obtain the first gap detection result.

[0079] Step 202: Receive the first gap detection result sent by the detection device through interlocking.

[0080] Step 203: When the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero, an instruction message is sent to the detection device through the interlocking system. The instruction message is used to instruct the detection device to detect the gap based on the second detection accuracy to obtain the second gap detection result. The second detection accuracy is less than the first detection accuracy.

[0081] The specific implementation process and principle of steps 201-203 are similar to those of steps 101-103. For details, please refer to the relevant descriptions of steps 101-103. They will not be repeated here.

[0082] The gap detection method provided in this invention sends a locking signal to the interlocking system to indicate that the train doors are locked. This locking signal instructs the interlocking system to send a gap detection command to a detection device when the platform screen doors are locked and the train's speed is zero. The gap detection command instructs the detection device to detect the gap between the platform screen doors and the train doors based on a first detection accuracy, obtaining a first gap detection result. The method receives the first gap detection result sent by the detection device through the interlocking system. If the first gap detection result indicates that there are no obstacles in the gap and the train's speed is non-zero, the interlocking system sends an instruction message to the detection device. This instruction message instructs the detection device to detect the gap based on a second detection accuracy, obtaining a second gap detection result. The second detection accuracy is less than the first detection accuracy. Because the higher accuracy of the first detection is used to detect the gap when the train's speed is zero, i.e., before it has begun to leave the station, it can prevent passengers or objects from falling into the gap, thus improving operational safety. To prevent emergency stops caused by false alarms when a train is leaving a station, the detection accuracy can be appropriately reduced, and a second detection accuracy can be used to detect gaps. This can reduce the probability of false alarms, decrease the number of emergency stops, and improve the passenger experience and driving safety.

[0083] For example, based on the above embodiments, when the detection device receives status information indicating the presence of an obstacle in the gap sent through the interlocking system, the train is controlled to stop running; the status information is sent by the detection device when it receives the gap detection command sent by the interlocking system and during the startup process.

[0084] Specifically, after receiving the gap detection command from the interlocking system, the detection equipment will start. During the startup process, before the detection equipment begins detecting, to prevent the train from deviating from the station and causing a safety accident, the detection equipment will continuously send status information indicating the presence of an obstacle in the gap to the interlocking system. This status information can be, for example, a low level. The interlocking system will continuously forward this status information indicating the presence of an obstacle in the gap to the train's onboard controller. Upon receiving this status information, the onboard controller will control the train to stop running, thereby preventing the train from deviating from the station.

[0085] In this embodiment, during the activation of the detection equipment, that is, before the detection begins, the system sends status information indicating the presence of an obstacle in the gap to the on-board controller via the interlocking system. In this way, the on-board controller will prevent the train from leaving the station, thereby preventing a safety accident caused by the train not receiving the indication of the presence of an obstacle in the gap if a passenger or luggage falls into the gap or gets stuck during the activation of the detection equipment. This greatly improves driving safety.

[0086] For example, based on the above embodiments, when it is determined that the rear of the train has left the station, or when the communication between the on-board controller and the interlocking system is interrupted, a gap stop detection command is sent to the detection device through the interlocking system. The gap stop detection command is used to instruct the detection device to stop detecting the gap.

[0087] In this embodiment, when the on-board controller determines that the rear of the train has left the station or when the communication between the on-board controller and the interlocking system is interrupted, it will send a gap stop detection command to the detection device through the interlocking system. The detection device will then stop detecting the gap. Thus, after the train has completely left the station, there is no point in continuing to detect the gap. Therefore, the detection device will be controlled to enter a standby state, which can reduce the energy consumption of the detection device.

[0088] Figure 3 The signaling flowchart of the gap detection method provided in the embodiments of the present invention is as follows: Figure 3 As shown, the method includes:

[0089] Step 301: VOBC sends a locking signal to the interlocking system to indicate that the doors are locked.

[0090] Step 302: The interlocking system sends a gap detection command to the detection equipment when the platform screen doors are locked and the train's running speed is zero.

[0091] Step 303: The detection equipment detects the gap between the platform screen door and the train door based on the first detection accuracy, and obtains the first gap detection result.

[0092] Step 304: The detection device sends the detection result of the first gap to the interlocking system.

[0093] Step 305: The interlocking system sends the first gap detection result to the VOBC.

[0094] Step 306: When the VOBC determines that the first gap detection result indicates that there are no obstacles in the gap and the train's running speed is non-zero, it sends an instruction message to the detection equipment through the interlocking system.

[0095] Step 307: The interlocking system sends instruction information to the detection equipment.

[0096] Step 308: The detection device detects the gap based on the second detection accuracy to obtain the second gap detection result.

[0097] The gap detection method provided in this invention, upon receiving a gap detection command from the interlocking system, detects the gap between the platform screen door and the train door based on a first detection accuracy to obtain a first gap detection result. This gap detection command is sent by the interlocking system when the train door and platform screen door are locked, and the train's operating speed is zero. The first gap detection result is then sent to the train's onboard controller via the interlocking system. Upon receiving an indication from the onboard controller via the interlocking system, the gap is detected based on a second detection accuracy to obtain a second gap detection result. This indication is sent by the onboard controller when it determines that the first gap detection result indicates there are no obstacles in the gap, and the train's operating speed is non-zero. The second detection accuracy is lower than the first detection accuracy. Because the higher first detection accuracy is used to detect the gap when the train's operating speed is zero, i.e., before it has begun to leave the station, it can prevent passengers or objects from falling into the gap, thus improving operating safety. To prevent emergency stops caused by false alarms when a train is leaving a station, the detection accuracy can be appropriately reduced, and a second detection accuracy can be used to detect gaps. This can reduce the probability of false alarms, decrease the number of emergency stops, and improve the passenger experience and driving safety.

[0098] The gap detection device provided by the present invention is described below. The gap detection device described below and the gap detection method described above can be referred to in correspondence.

[0099] Figure 4 This is one of the structural schematic diagrams of the gap detection device provided in the embodiments of the present invention, with reference to... Figure 4 As shown, the gap detection device 400 includes:

[0100] The detection module 11 is used to detect the gap between the platform screen door and the train door based on a first detection accuracy when a gap detection command is received from the interlocking system, and to obtain a first gap detection result. The gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's running speed is zero.

[0101] The sending module 12 is used to send the first gap detection result to the on-board controller of the train through the interlocking system;

[0102] The detection module 11 is further configured to detect the gap based on a second detection accuracy when receiving the indication information sent by the vehicle controller through the interlocking system, and obtain a second gap detection result. The indication information is sent by the vehicle controller when it determines that the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero. The second detection accuracy is less than the first detection accuracy.

[0103] In one example embodiment, the sending module 12 is further configured to:

[0104] Upon receiving the gap detection command from the interlocking system and during the startup process, the detection device sends status information indicating the presence of an obstacle in the gap to the on-board controller via the interlocking system. This status information is used to instruct the on-board controller to prohibit the train from running.

[0105] In one example embodiment, the apparatus further includes: a receiving module and a processing module, wherein:

[0106] The receiving module is used to receive the gap stop detection command sent by the vehicle controller through the interlocking system. The gap stop detection command is sent by the vehicle controller when it determines that the rear of the train has left the station, or when the communication between the vehicle controller and the interlocking system is interrupted.

[0107] The processing module is configured to stop probing the gap in response to the gap stop detection command.

[0108] In one example embodiment, the apparatus further includes: an acquisition module and a determination module, wherein:

[0109] The acquisition module is used to acquire the first detection frequency corresponding to the first detection accuracy;

[0110] The determination module is used to determine the target frequency adjustment value corresponding to the target time period in which the current moment is located, based on the correspondence between time periods and frequency adjustment values.

[0111] The determining module is used to determine the difference between the first detection frequency and the target frequency adjustment value;

[0112] The determining module is used to determine the difference as the second detection frequency corresponding to the second detection accuracy.

[0113] The apparatus of this embodiment can be used to execute the method of any embodiment in the gap detection method side embodiment. Its specific implementation process and technical effects are similar to those in the gap detection method side embodiment. For details, please refer to the detailed description in the gap detection method side embodiment, which will not be repeated here.

[0114] Figure 5 This is a schematic diagram of the gap detection device provided in an embodiment of the present invention, with reference to... Figure 5 As shown in Figure 2, the gap detection device 500 includes:

[0115] The sending module 21 is used to send a locking signal to the interlocking system to indicate that the train door is locked. The locking signal is used to instruct the interlocking system to send a gap detection command to the detection device when the platform screen door is locked and the train's running speed is zero. The gap detection command is used to instruct the detection device to detect the gap between the platform screen door and the train door based on a first detection accuracy to obtain a first gap detection result.

[0116] Receiver module 22 is used to receive the first gap detection result sent by the detection device through the interlock;

[0117] The sending module 21 is further configured to send instruction information to the detection device through the interlocking system when the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero. The instruction information is used to instruct the detection device to detect the gap based on a second detection accuracy to obtain a second gap detection result, wherein the second detection accuracy is less than the first detection accuracy.

[0118] In one example embodiment, the device further includes: a control module, wherein:

[0119] The control module is used to control the train to stop running when it receives status information indicating the presence of an obstacle in the gap from the detection device via the interlocking system; the status information is sent by the detection device when it receives the gap detection command from the interlocking system and during the startup process.

[0120] In one example embodiment, the sending module 21 is further configured to send a gap stop detection command to the detection device through the interlocking system when it is determined that the rear of the train has left the station, or when the communication between the on-board controller and the interlocking system is interrupted. The gap stop detection command is used to instruct the detection device to stop detecting the gap.

[0121] The apparatus of this embodiment can be used to execute the method of any embodiment in the gap detection method side embodiment. Its specific implementation process and technical effects are similar to those in the gap detection method side embodiment. For details, please refer to the detailed description in the gap detection method side embodiment, which will not be repeated here.

[0122] Figure 6 This is a schematic diagram of the physical structure of an electronic device provided in an embodiment of the present invention, such as... Figure 6 As shown, the electronic device may include: a processor 610, a communications interface 620, a memory 630, and a communications bus 640, wherein the processor 610, the communications interface 620, and the memory 630 communicate with each other through the communications bus 640. The processor 610 can call logic instructions in the memory 630 to execute a gap detection method, which includes: upon receiving a gap detection command sent by the interlocking system, detecting the gap between the platform screen door and the train door based on a first detection accuracy to obtain a first gap detection result, wherein the gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's running speed is zero; sending the first gap detection result to the train's onboard controller through the interlocking system; upon receiving an indication message sent by the onboard controller through the interlocking system, detecting the gap based on a second detection accuracy to obtain a second gap detection result, wherein the indication message is sent by the onboard controller when it determines that the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero, wherein the second detection accuracy is less than the first detection accuracy.

[0123] The processor 610 can call logic instructions in the memory 630 to execute a gap detection method, the method comprising: sending a locking signal to the interlocking system to indicate that the train door is locked, the locking signal being used to instruct the interlocking system to send a gap detection command to a detection device when the platform screen door is locked and the train's operating speed is zero, the gap detection command being used to instruct the detection device to detect the gap between the platform screen door and the train door based on a first detection accuracy, to obtain a first gap detection result; receiving the first gap detection result sent by the detection device through the interlocking system; and, when it is determined that the first gap detection result indicates that there is no obstacle in the gap and the train's operating speed is non-zero, sending indication information to the detection device through the interlocking system, the indication information being used to instruct the detection device to detect the gap based on a second detection accuracy, to obtain a second gap detection result, the second detection accuracy being less than the first detection accuracy.

[0124] Furthermore, the logical instructions in the aforementioned memory 630 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 described in 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.

[0125] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the gap detection method provided by the above methods. The method includes: upon receiving a gap detection command sent by the interlocking system, detecting the gap between the platform screen door and the train door based on a first detection accuracy to obtain a first gap detection result, wherein the gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's running speed is zero; sending the first gap detection result to the train's onboard controller through the interlocking system; upon receiving an indication message sent by the onboard controller through the interlocking system, detecting the gap based on a second detection accuracy to obtain a second gap detection result, wherein the indication message is sent by the onboard controller when it determines that the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero, wherein the second detection accuracy is less than the first detection accuracy.

[0126] When the computer program is executed by the processor, the computer can execute the gap detection method provided by the above methods. The method includes: sending a locking signal to the interlocking system to indicate that the train door is locked, the locking signal being used to instruct the interlocking system to send a gap detection command to a detection device when the platform screen door is locked and the train's running speed is zero, the gap detection command being used to instruct the detection device to detect the gap between the platform screen door and the train door based on a first detection accuracy, and obtain a first gap detection result; receiving the first gap detection result sent by the detection device through the interlocking system; and, when it is determined that the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero, sending instruction information to the detection device through the interlocking system, the instruction information being used to instruct the detection device to detect the gap based on a second detection accuracy, and obtain a second gap detection result, the second detection accuracy being less than the first detection accuracy.

[0127] 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, implements the gap detection method provided by the above methods. The method includes: upon receiving a gap detection command sent by an interlocking system, detecting the gap between the platform screen door and the train door based on a first detection accuracy to obtain a first gap detection result, wherein the gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's operating speed is zero; sending the first gap detection result to the train's onboard controller via the interlocking system; and upon receiving an indication message sent by the onboard controller via the interlocking system, detecting the gap based on a second detection accuracy to obtain a second gap detection result, wherein the indication message is sent by the onboard controller when it determines that the first gap detection result indicates that there is no obstacle in the gap and the train's operating speed is non-zero, wherein the second detection accuracy is less than the first detection accuracy.

[0128] When executed by a processor, the computer program implements the gap detection method provided by the above methods. The method includes: sending a locking signal to an interlocking system to indicate that the train door is locked; the locking signal instructing the interlocking system to send a gap detection command to a detection device when the platform screen door is locked and the train's operating speed is zero; the gap detection command instructing the detection device to detect the gap between the platform screen door and the train door based on a first detection accuracy to obtain a first gap detection result; receiving the first gap detection result sent by the detection device through the interlocking system; and, when it is determined that the first gap detection result indicates that there is no obstacle in the gap and the train's operating speed is non-zero, sending indication information to the detection device through the interlocking system; the indication information instructing the detection device to detect the gap based on a second detection accuracy to obtain a second gap detection result, where the second detection accuracy is less than the first detection accuracy.

[0129] 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, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0130] 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., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0131] 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 gap detection method, characterized in that, Applied to a detection device, the method includes: Upon receiving a gap detection command from the interlocking system, the gap between the platform screen door and the train door is detected based on a first detection accuracy to obtain a first gap detection result. The gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's operating speed is zero. The first gap detection result is sent to the train's onboard controller via the interlocking system; Upon receiving the instruction information sent by the vehicle controller through the interlocking system, the gap is detected based on the second detection accuracy to obtain the second gap detection result. The instruction information is sent by the vehicle controller when it determines that the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero. The second detection accuracy is less than the first detection accuracy.

2. The gap detection method according to claim 1, characterized in that, The method further includes: Upon receiving the gap detection command from the interlocking system and during the startup process, the detection device sends status information indicating the presence of an obstacle in the gap to the on-board controller via the interlocking system. This status information is used to instruct the on-board controller to prohibit the train from running.

3. The gap detection method according to claim 1, characterized in that, The method further includes: The vehicle controller receives a gap stop detection command sent by the vehicle controller through the interlocking system. The gap stop detection command is sent by the vehicle controller when it determines that the rear of the train has left the station, or when the communication between the vehicle controller and the interlocking system is interrupted. In response to the gap stop detection command, the detection of the gap is stopped.

4. The gap detection method according to any one of claims 1-3, characterized in that, The method further includes: Obtain the first detection frequency corresponding to the first detection accuracy; Based on the correspondence between time periods and frequency adjustment values, determine the target frequency adjustment value corresponding to the target time period in which the current moment is located; Determine the difference between the first detection frequency and the target frequency adjustment value; The difference is determined as the second detection frequency corresponding to the second detection accuracy.

5. A gap detection method, characterized in that, Applied to an on-board controller, the method includes: Send a locking signal to the interlocking system to indicate that the train door is locked. The locking signal is used to instruct the interlocking system to send a gap detection command to the detection device when the platform screen door is locked and the train speed is zero. The gap detection command is used to instruct the detection device to detect the gap between the platform screen door and the train door based on a first detection accuracy, and obtain a first gap detection result. Receive the first gap detection result sent by the detection device through the interlock; When the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero, the interlocking system sends an instruction message to the detection device. The instruction message is used to instruct the detection device to detect the gap based on a second detection accuracy to obtain a second gap detection result. The second detection accuracy is less than the first detection accuracy.

6. The gap detection method according to claim 5, characterized in that, The method further includes: Upon receiving status information from the detection device via the interlocking system indicating the presence of an obstacle in the gap, the train is controlled to cease operation; the status information is sent by the detection device upon receiving the gap detection command from the interlocking system and during the startup process.

7. The gap detection method according to claim 5, characterized in that, The method further includes: In the event that the rear of the train has departed the station, or the communication between the onboard controller and the interlocking system is interrupted, a gap stop detection command is sent to the detection device through the interlocking system. The gap stop detection command is used to instruct the detection device to stop detecting the gap.

8. A gap detection device, characterized in that, include: The detection module is used to detect the gap between the platform screen door and the train door based on a first detection accuracy when it receives a gap detection command sent by the interlocking system, and obtain a first gap detection result. The gap detection command is sent by the interlocking system when the train door is locked, the platform screen door is locked, and the train's running speed is zero. A transmitting module is used to transmit the first gap detection result to the on-board controller of the train through the interlocking system; The detection module is further configured to detect the gap based on a second detection accuracy when receiving an indication message sent by the vehicle controller through the interlocking system, and obtain a second gap detection result. The indication message is sent by the vehicle controller when it determines that the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero. The second detection accuracy is less than the first detection accuracy.

9. A gap detection device, characterized in that, include: The sending module is used to send a locking signal to the interlocking system to indicate that the train door is locked. The locking signal is used to instruct the interlocking system to send a gap detection command to the detection device when the platform screen door is locked and the train's running speed is zero. The gap detection command is used to instruct the detection device to detect the gap between the platform screen door and the train door based on a first detection accuracy, and obtain a first gap detection result. The receiving module is used to receive the first gap detection result sent by the detection device through the interlock; The sending module is further configured to send instruction information to the detection device through the interlocking system when the first gap detection result indicates that there is no obstacle in the gap and the train's running speed is non-zero. The instruction information is used to instruct the detection device to detect the gap based on a second detection accuracy to obtain a second gap detection result, wherein the second detection accuracy is less than the first detection accuracy.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the gap detection method as described in any one of claims 1 to 4, or the gap detection method as described in any one of claims 5 to 7.

11. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the gap detection method as described in any one of claims 1 to 4, or the gap detection method as described in any one of claims 5 to 7.

12. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the gap detection method as described in any one of claims 1 to 4, or the gap detection method as described in any one of claims 5 to 7.

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