Double-precision platform gap detection method, device and equipment and storage medium

Abstract

The invention relates to the technical field of rail transit, and provides a double-precision platform gap detection method, device and equipment and a storage medium, the method is applied to a double-precision platform gap detection system, and the method comprises the steps that under the condition that it is determined that a train enters a platform area, high-precision gap detection is carried out; the high-precision gap detection is used for representing that the obstacle exists in the gap detection according to a judgment standard that the obstacle is in a first distance range; under the condition that it is determined that the train is started and does not completely drive away from the platform area, low-precision gap detection is conducted; the low-precision gap detection is used for representing that the obstacle exists in the gap detection according to a judgment standard that the obstacle is in a second spacing range, and the second spacing range is larger than the first spacing range; and under the condition that the train is determined to leave the platform area, gap detection is stopped. According to the invention, the false alarm probability of gap detection is reduced, so that the driving efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of rail transit technology, and in particular to a double-precision platform gap detection method, device, equipment and storage medium. Background Art

[0002] The function of gap detection is to confirm whether there is a person trapped between the train door and the platform door after the train enters the station, so as to ensure the safety of passengers. When the gap detection system is working, it will form a detection area with invisible light, and use the light beam blocking alarm to detect whether there are obstacles in the area. The final detection result will be combined into a signal to connect to the platform door safety circuit to determine whether the train can be safely departed, replacing the traditional human eye and gesture measurement, improving operational efficiency and driving safety.

[0003] In the prior art, the gap detection methods are all single-precision, that is, the detection accuracy is relatively high. In fact, when a thin person or child, or a passenger's belongings appear between the train door and the platform door, it will cause serious safety hazards. If the system detection accuracy is too high, the probability of false alarms for obstacles will increase. In particular, when the train doors and platform doors are closed and the train has departed but has not left the platform, the probability of foreign objects entering between the doors and platform doors is much lower than when the train is operating on the platform. In this scenario, if an obstacle is falsely reported, the train will have to implement emergency braking, which will seriously affect driving efficiency. Summary of the invention

[0004] The present invention provides a double-precision platform gap detection method, device, equipment and storage medium, which are used to solve the defect of high false alarm probability of gap detection in the prior art, reduce the false alarm probability of gap detection, and thus improve driving efficiency.

[0005] In a first aspect, the present invention provides a double-precision platform gap detection method, which is applied to a double-precision platform gap detection system. The method comprises the following steps.

[0006] When it is determined that the train enters the platform area, high-precision gap detection is performed; the high-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection that the obstacles are within the first spacing range; When it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed; the low-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; When it is determined that the train has cleared the platform area, gap detection is stopped.

[0007] According to a double-precision platform gap detection method provided by the present invention, the double-precision platform gap detection system includes an automatic train protection system, a computer interlocking system and a gap detection system, and the high-precision gap detection includes: Using the automatic train protection system, the computer interlocking system and the gap detection system to perform high-precision gap detection; The low-precision gap detection comprises: The automatic train protection system, the computer interlocking system and the gap detection system are used to perform low-precision gap detection.

[0008] According to a double-precision platform gap detection method provided by the present invention, the high-precision gap detection comprises: Utilizing the automatic train protection system to send a start instruction for a high-precision gap detection operation to the computer interlocking system; utilizing the computer interlocking system to send a high-precision detection pulse to the gap detection system via a relay interface in response to a start instruction of the high-precision gap detection operation; The gap detection system is used to control the accuracy of platform gap detection according to the high-precision detection pulse to obtain a first obstacle state in the platform gap; and the first obstacle state is fed back to the computer interlocking system; utilizing the computer interlocking system to feed back the first obstacle state to the automatic train protection system; The automatic train protection system is used to perform a first handling operation of the obstacle in response to the first obstacle state.

[0009] According to a double-precision platform gap detection method provided by the present invention, in response to the first obstacle state, performing a first processing operation of the obstacle includes: When the first obstacle state is that an obstacle exists, sending an instruction to the train automatic operation system to stop the movement of the train; When the first obstacle state is that there is no obstacle and the state of no obstacle lasts for a preset time period, an instruction for controlling the departure of a train is sent to an automatic train operation system.

[0010] According to a double-precision platform gap detection method provided by the present invention, the low-precision gap detection comprises: Utilizing the automatic train protection system to send a start instruction for a low-precision gap detection operation to the computer interlocking system; utilizing the computer interlocking system to send a low-precision detection pulse to the gap detection system via a relay interface in response to a start instruction of the low-precision gap detection operation; The gap detection system is used to control the accuracy of platform gap detection according to the low-precision detection pulse to obtain a second obstacle state in the platform gap; and the second obstacle state is fed back to the computer interlocking system; utilizing the computer interlocking system to feed back the second obstacle state to the automatic train protection system; The automatic train protection system is used to perform a second handling operation of the obstacle in response to the second obstacle state.

[0011] According to a double-precision platform gap detection method provided by the present invention, the stopping of gap detection comprises: Utilizing the automatic train protection system to send a command to the computer interlocking system to stop gap detection; utilizing the computer interlocking system to send an end detection pulse to the gap detection system via a relay interface in response to the instruction to stop gap detection; The gap detection system is used to stop gap detection of the platform gap in response to the end detection pulse.

[0012] According to a double-precision platform gap detection method provided by the present invention, the method further includes: Acquiring configuration data of the automatic train protection system and the computer interlocking system; the configuration data is used to indicate whether double-precision gap detection is required in the automatic train protection system and the computer interlocking system; When it is determined that both the automatic train protection system and the computer interlocking system require double-precision gap detection, the automatic train protection system is used to send a non-zero speed instruction to the computer interlocking system through a custom frame; the non-zero speed instruction includes a start instruction for the high-precision gap detection operation or a start instruction for the low-precision gap detection operation.

[0013] In a second aspect, the present invention further provides a double-precision platform gap detection device, which is applied to the double-precision platform gap detection system, and the device includes the following modules: A gap detection module is used to perform high-precision gap detection when it is determined that the train enters the platform area; the high-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection that the obstacles are within the first spacing range; When it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed; the low-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; When it is determined that the train has cleared the platform area, gap detection is stopped.

[0014] In a third aspect, the present invention further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, it implements any of the above-described double-precision platform gap detection methods.

[0015] In a fourth aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the double-precision platform gap detection methods described above.

[0016] In a fifth aspect, the present invention further provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the double-precision platform gap detection method as described above is implemented.

[0017] The present invention provides a double-precision platform gap detection method, device, equipment and storage medium. The method is applied to a double-precision platform gap detection system. When it is determined that a train enters a platform area, the method performs high-precision gap detection, wherein the high-precision gap detection is used to characterize the judgment standard of the existence of an obstacle in the gap detection, and the obstacle is within a first spacing range; when it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed, wherein the low-precision gap detection is used to characterize the judgment standard of the existence of an obstacle in the gap detection, and the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; further, when it is determined that the train has cleared the platform area, the gap detection is stopped.

[0018] The present invention starts high-precision detection after the train enters the platform area, starts low-precision detection when the train starts but before it completely leaves the platform, and stops gap detection after the train clears the platform area, thereby reducing the false alarm probability of gap detection and improving driving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is one of the flow charts of the double-precision platform gap detection method provided by the present invention.

[0021] Figure 2 This is the second flow chart of the double-precision platform gap detection method provided by the present invention.

[0022] Figure 3 It is a data interaction timing diagram of the double-precision platform gap detection method provided by the present invention.

[0023] Figure 4 It is a structural schematic diagram of the double-precision platform gap detection device provided by the present invention.

[0024] Figure 5 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally a class, and the number of objects is not limited. For example, the first node can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the front and back associated objects are in an "or" relationship.

[0027] Combine the following Figure 1-Figure 5 The double-precision platform gap detection method, device, equipment and storage medium of the present invention are described.

[0028] Figure 1 is one of the flow charts of the double-precision platform gap detection method provided by the present invention, which is applied to the double-precision platform gap detection system, such as Figure 1 As shown, the method includes the following: Step 101: When it is determined that the train has entered the platform area, high-precision gap detection is performed; the high-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within a first spacing range; Specifically, the executor of this embodiment is a double-precision platform gap detection system, which is used to realize double-precision detection of gaps, which can reduce the false alarm rate caused by single high-precision detection, thereby improving driving efficiency.

[0029] Among them, gap detection refers to the detection of whether there are any obstacles or people trapped in the gap between the train doors and platform doors during the process of closing the train doors and platform doors after the train enters the station and completes the passengers getting on and off.

[0030] The detection accuracy in high-precision gap detection and low-precision gap detection is used to indicate the minimum gap change that the detection system can identify. For example, high-precision gap detection is used to characterize the judgment criterion for the presence of an obstacle in gap detection, which is that the obstacle is within a first spacing range. Correspondingly, low-precision gap detection is used to characterize the judgment criterion for the presence of an obstacle in gap detection, which is that the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range.

[0031] In this embodiment, when it is determined that a train has entered the platform area, the dual-precision platform gap detection system performs high-precision gap detection to avoid the occurrence of safety accidents to the greatest extent.

[0032] Step 102: When it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed; the low-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within the second spacing range, and the second spacing range is larger than the first spacing range; Specifically, in this embodiment, when it is determined that the train has started and has not completely left the platform area, the dual-precision platform gap detection system performs low-precision gap detection, reducing the power consumption and false alarm rate of high-precision detection, and improving driving efficiency without affecting safety.

[0033] Step 103: When it is determined that the train has cleared the platform area, stop gap detection.

[0034] Specifically, in this embodiment, when it is determined that the train has cleared the platform area, gap detection is stopped, which reduces the power consumption and false alarm rate of high-precision detection and improves driving efficiency without affecting safety.

[0035] In other words, the present invention designs a method of switching gap detection to different precision detection, which can select high-precision detection and low-precision detection according to the current different states of the train, and can effectively reduce the situation of false alarms of obstacles due to excessive detection accuracy. Through low-precision detection, the power consumption and false alarm rate of high-precision detection are reduced, and the driving efficiency is greatly improved without affecting safety.

[0036] The method provided in this embodiment is applied to a dual-precision platform gap detection system. When it is determined that a train has entered the platform area, the method performs high-precision gap detection, wherein the high-precision gap detection is used to characterize the judgment criterion for the presence of an obstacle in the gap detection, that the obstacle is within a first spacing range; when it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed, wherein the low-precision gap detection is used to characterize the judgment criterion for the presence of an obstacle in the gap detection, that the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; further, when it is determined that the train has cleared the platform area, the gap detection is stopped.

[0037] The present invention starts high-precision detection after the train enters the platform area, starts low-precision detection when the train starts but before it completely leaves the platform, and stops gap detection after the train clears the platform area, thereby reducing the false alarm probability of gap detection and improving driving efficiency.

[0038] According to a double-precision platform gap detection method provided by the present invention, a double-precision platform gap detection system includes an automatic train protection system, a computer interlocking system and a gap detection system, and performs high-precision gap detection, including: High-precision gap detection using automatic train protection system, computer interlocking system and gap detection system; Perform low-precision gap detection, including: The automatic train protection system, computer interlocking system and gap detection system perform low-precision gap detection.

[0039] Specifically, in some embodiments, the dual-precision platform gap detection system includes an automatic train protection (ATP) system, a computer interlocking (CI) system, and a gap detection system. The ATP system monitors the running status of the train, including speed and position, and enforces safety restrictions in real time to avoid dangerous situations such as speeding and train collisions. The main functions of the ATP system include collision avoidance, emergency intervention, overspeed protection, and door monitoring. The CI system is an important part of the railway signal system, mainly used to ensure the safety of trains and shunting operations in the station and improve the station's throughput capacity. The system uses computer technology to perform logical operations on the operating commands of station operators and the status information of on-site equipment, and realizes centralized control of signal machines, switches, routes, etc., to ensure that they are mutually restricted to ensure driving safety.

[0040] The implementation process of high-precision gap detection is as follows: using the automatic train protection system, computer interlocking system and gap detection system to perform high-precision gap detection; The implementation process of low-precision gap detection is as follows: the automatic train protection system, the computer interlocking system and the gap detection system perform low-precision gap detection.

[0041] The method provided in this embodiment realizes precise control of the gap detection system through inter-system data interaction among the ATP system, the CI system and the gap detection system, thereby avoiding accidents and improving driving efficiency.

[0042] According to a double-precision platform gap detection method provided by the present invention, high-precision gap detection is performed, comprising: Automatic train protection system, used to send start instructions for high-precision gap detection operations to the computer interlocking system; utilizing a computer interlocking system for sending a high-precision detection pulse to the gap detection system via a relay interface in response to a start instruction of a high-precision gap detection operation; Using the gap detection system to control the accuracy of platform gap detection according to the high-precision detection pulse, obtaining a first obstacle state in the platform gap; feeding back the first obstacle state to the computer interlocking system; utilizing a computer interlocking system for feeding back the state of the first obstacle to the automatic train protection system; An automatic train protection system is utilized for performing a first obstacle handling operation in response to a first obstacle state.

[0043] Specifically, in some embodiments, the process of performing high-precision gap detection by the dual-precision platform gap detection system in step 101 is exemplified as follows, and the steps include: First, the automatic train protection ATP system sends a start instruction for the high-precision gap detection operation to the computer interlocking system. The ATP system and the CI system are connected through an Ethernet interface. The Ethernet interface is a hardware interface for local area network communication, supporting multiple rates such as 10M / 100M / 1000Mbps, and can work in full-duplex or half-duplex mode. The Ethernet technology is used to solve the problem of data packet collision in the shared network, and the Carrier Sense Multiple Access with Collision Detection (CSMA / CD) technology is used to guide the correct and effective transmission of information between devices. The start instruction of the high-precision gap detection operation is similar to the start instruction of the low-precision gap detection operation. The two fields in the ATP-CI communication message can be defined to represent the high-precision detection instruction and the low-precision detection instruction respectively, and the validity and invalidity of the instruction correspond to the start and end of the instruction respectively.

[0044] Then, the computer interlocking CI system responds to the start instruction of the high-precision gap detection operation and sends a high-precision detection pulse to the gap detection system through the relay interface. The CI system is connected to the gap detection system through the relay interface. The relay interface plays an important role in the railway signal system, and is mainly responsible for realizing the electrical connection and signal transmission between the various components of the signal system. According to the description in the relevant technical specifications, the relay interface function table between the signal system and the platform screen door / safety door system lists in detail the signal name, mode, signal direction, signal system function and platform door system function, such as door opening command, door closing command, door closed and locked status, etc. These signals are transmitted between the signal system (Signal, SIG) and the platform door system (PED) through hard wires.

[0045] Furthermore, the gap detection system is used to control the accuracy of platform gap detection according to the high-precision detection pulse to obtain the first obstacle state in the platform gap. When the gap detection system is working, a detection area will be composed of invisible light, and the presence of obstacles in the area will be detected by using the light beam blocking alarm method. The final detection result will be combined into a signal to access the platform door safety circuit to determine whether the train can depart safely. The first obstacle state can be represented by the value of an interface field: there is an obstacle; there is no obstacle. Then, after the gap detection, the gap detection system is used to feed back the first obstacle state to the computer interlocking system.

[0046] Furthermore, the computer interlocking CI system is used to feed back the first obstacle state to the automatic train protection ATP system after receiving the first obstacle state.

[0047] Furthermore, the automatic train protection system is used to respond to the first obstacle state and execute the first obstacle processing operation. Specifically, different processing schemes are adopted for different first obstacle states (obstacles, no obstacles). For example, 1. When the gap detection feedback shows that there is an obstacle, the door is immediately opened, the traction is cut off, and the train is not allowed to move. At the same time, an obstacle icon is displayed on the driver interface to notify the driver that a "people-pinch" situation has occurred. After the door is closed again, the gap detection is started again; 2. When the gap detection feedback shows that there is no obstacle for a period of time, it is determined that there is no obstacle between the door and the platform door, and the train is controlled to depart.

[0048] The method provided in this embodiment realizes precise control of the gap detection system through inter-system data interaction among the ATP system, the CI system and the gap detection system, and starts high-precision detection after the train enters the platform area, which can avoid accidents and thus improve driving efficiency.

[0049] According to a double-precision platform gap detection method provided by the present invention, in response to a first obstacle state, a first obstacle processing operation is performed, including: When the first obstacle state is that an obstacle exists, sending an instruction to the train automatic operation system to stop the movement of the train; When the first obstacle state is that there is no obstacle and the state of no obstacle lasts for a preset time period, an instruction for controlling the departure of the train is sent to the train automatic operation system.

[0050] Specifically, in some embodiments, in response to the first obstacle state, an example of an implementation process of performing a first processing operation of the obstacle is as follows: It should be noted that the Automatic Train Operation (ATO) system is a key subsystem in the urban rail transit signal system. It is responsible for controlling the train's start, acceleration, cruising, deceleration and parking processes. The ATO system is responsible for controlling the train's start, acceleration, cruising, deceleration and parking processes. The ATO system works under the safety protection of the Automatic Train Protection (ATP) system and realizes automatic driving of the train according to the operation diagram and instructions provided by the Automatic Train Monitoring System (ATS). The main functions of the ATO system include: 1. Automatic driving: The ATO system can automatically control the entire process from start to stop of the train, including automatic opening and closing of doors, automatic adjustment of train speed and precise parking at the station. 2. Speed ​​control: According to the real-time operating conditions and the operation diagram provided by the ATS system, the ATO system automatically adjusts the train's speed to ensure that the train arrives at each station on time. 3. Energy-saving optimization: The ATO system reduces energy consumption by optimizing the operating curve and reducing unnecessary acceleration and braking. 4. Improve operating efficiency: The ATO system improves the transportation capacity of the line by precisely controlling the train operation, shortening the train's stay time at the station and the running interval between stations. 5. Improve riding comfort: The ATO system reduces passengers' discomfort during train operation through smooth acceleration and deceleration processes. 6. Collaboration with ATP / ATS: The ATO system works in conjunction with the ATP system to ensure that the train runs at a safe speed, and works with the ATS system to make necessary adjustments based on real-time operating conditions. 7. Abnormal situation handling: In the event of an emergency or equipment failure, the ATO system can handle the situation accordingly according to the preset procedures, such as slowing down and stopping the train or switching to manual driving mode. 8. Data recording and analysis: The ATO system can record relevant data on train operation to provide support for operation analysis and fault diagnosis.

[0051] When the first obstacle state is that there is an obstacle, the automatic train protection system sends a command to the train automatic operation system to stop the train movement. When the first obstacle state is that there is no obstacle and the state of no obstacle lasts for a preset time period, the automatic train protection system sends a command to the train automatic operation system to control the departure of the train, thereby maximizing the driving safety and avoiding the occurrence of safety accidents.

[0052] The method provided in this embodiment is that the automatic train protection system sends an instruction to the train automatic operation system to stop the movement of the train when the first obstacle state is that there is an obstacle, and sends an instruction to the train automatic operation system to control the departure of the train when the first obstacle state is that there is no obstacle and the state of no obstacle lasts for a preset time period, thereby maximizing the guarantee of driving safety and avoiding the occurrence of safety accidents.

[0053] According to a double-precision platform gap detection method provided by the present invention, low-precision gap detection is performed, comprising: Utilize the automatic train protection system to send a start command for the low-precision gap detection operation to the computer interlocking system; utilizing a computer interlocking system for sending a low-precision detection pulse to the gap detection system via a relay interface in response to a start instruction for a low-precision gap detection operation; Using the gap detection system to control the accuracy of platform gap detection according to the low-precision detection pulse, obtaining a second obstacle state in the platform gap; feeding back the second obstacle state to the computer interlocking system; utilizing a computer interlocking system for feeding back the status of the second obstacle to the automatic train protection system; An automatic train protection system is utilized for performing a second obstacle handling operation in response to a second obstacle state.

[0054] Specifically, in some embodiments, the low-precision gap detection by the dual-precision platform gap detection system in step 102 is implemented by the following steps, including: First, the automatic train protection ATP system is used to send a start instruction for low-precision gap detection operation to the computer interlocking system. The start instruction for low-precision gap detection operation is similar to the start instruction for high-precision gap detection operation. The two fields in the ATP CI communication message can be defined to represent the high-precision detection instruction and the low-precision detection instruction respectively, and the validity and invalidity of the instruction correspond to the start and end of the instruction respectively.

[0055] Furthermore, the computer interlocking CI system is used to respond to a start instruction of a low-precision gap detection operation and send a low-precision detection pulse to the gap detection system through a relay interface.

[0056] Further, the gap detection system is used to control the accuracy of platform gap detection according to the low-precision detection pulse to obtain a second obstacle state in the platform gap. Similar to the first obstacle state, the second obstacle state is also represented by a value of an interface field: there is an obstacle; there is no obstacle. Then, after the gap detection, the gap detection system is used to feed back the second obstacle state to the computer interlocking system. After the second obstacle state is detected, the second obstacle state is fed back to the computer interlocking system through the relay interface.

[0057] Furthermore, the computer interlocking system is used to feed back the second obstacle state to the automatic train protection system; further, the automatic train protection system is used to respond to the second obstacle state and execute the second obstacle processing operation. Specifically, for example, different processing schemes can be adopted for different second obstacle states (obstacles present, no obstacles), for example, 1. When the gap detection feedback shows that there is an obstacle, ATP outputs emergency braking to stop the train; 2. When the gap detection feedback shows that there is no obstacle for a period of time, it is determined that there is no obstacle between the door and the platform door, and the train is controlled to depart.

[0058] The method provided in this embodiment realizes precise control of the gap detection system through inter-system data interaction among the ATP system, the CI system and the gap detection system, and starts low-precision detection before the train starts but has not completely left the platform, thereby reducing the false alarm probability of gap detection and improving driving efficiency.

[0059] According to a double-precision platform gap detection method provided by the present invention, stopping gap detection includes: Automatic train protection system, used to send instructions to the computer interlocking system to stop gap detection; A computer interlocking system, for responding to an instruction to stop gap detection, sending an end detection pulse to the gap detection system through a relay interface; The gap detection system is used to stop gap detection of the platform gap in response to the end detection pulse.

[0060] Specifically, in some embodiments, the process of stopping gap detection in step 103 may be implemented in the following manner, including: First, the automatic train protection system is used to send an instruction to stop gap detection to the computer interlocking system; then, the computer interlocking system is used to respond to the instruction to stop gap detection by sending an end detection pulse to the gap detection system through the relay interface; further, the gap detection system is used to stop gap detection of the platform gap in response to the end detection pulse.

[0061] The method provided in this embodiment realizes precise control of the gap detection system through inter-system data interaction among the ATP system, the CI system and the gap detection system. When it is determined that the train has cleared the platform area, the gap detection is stopped, thereby reducing the false alarm probability of the gap detection and improving the driving efficiency.

[0062] According to a double-precision platform gap detection method provided by the present invention, the method further includes: Acquiring configuration data of the automatic train protection system and the computer interlocking system; the configuration data is used to indicate whether double-precision gap detection is required in the automatic train protection system and the computer interlocking system; When it is determined that both the automatic train protection system and the computer interlocking system require double-precision gap detection, the automatic train protection system is used to send a non-zero speed instruction to the computer interlocking system through a custom frame; the non-zero speed instruction includes a start instruction for a high-precision gap detection operation or a start instruction for a low-precision gap detection operation.

[0063] Specifically, in some embodiments, the method further includes: data design, and the specific process example is as follows: First, the configuration data of the automatic train protection system and the computer interlocking system are obtained, wherein the configuration data is used to characterize whether double-precision gap detection is required in the automatic train protection system and the computer interlocking system. That is, whether double-precision gap detection is required is used as data configuration to facilitate the subsequent sending and execution of instructions between the automatic train protection system and the computer interlocking system according to the data configuration.

[0064] When it is determined that both the automatic train protection system and the computer interlocking system require double-precision gap detection, the automatic train protection system is used to send a non-zero speed instruction to the computer interlocking system through a custom frame. The non-zero speed instruction includes a start instruction for a high-precision gap detection operation or a start instruction for a low-precision gap detection operation. In other words, when the ATP system and the CI system both have this data configuration item, in order not to change the existing interconnection message format, the ATP system sends a non-zero speed instruction with platform door information to the CI system through a custom frame. If there is no such configuration, the ATP system does not send a custom message frame. The advantage of doing this is that it does not affect the existing interconnection protocol and can achieve double-precision detection.

[0065] The method provided in this embodiment first obtains configuration data of the automatic train protection system and the computer interlocking system, wherein the configuration data is used to characterize whether double-precision gap detection is required in the automatic train protection system and the computer interlocking system; then, when it is determined that both the automatic train protection system and the computer interlocking system require double-precision gap detection, the automatic train protection system is used to send a non-zero speed instruction to the computer interlocking system through a custom frame. The advantage of doing this is that it does not affect the existing interoperability protocol, and can achieve double-precision detection, with strong compatibility.

[0066] Figure 2 FIG. 2 is a flow chart of the double-precision platform gap detection method provided by the present invention. Figure 2 As shown, the method includes: Step 1: After the train stops at a platform with double-precision detection, the ATP system sends a start detection command for gap detection to the CI after the train door and platform door are closed; Step 2: After receiving the start detection command, the CI system continuously sends start high-precision detection pulses to the gap detection system through the relay interface; Step 3: The gap detection system starts and feeds back the obstacle status to the CI; Step 4: After receiving the feedback from the gap detection system, the CI system sends the obstacle status to the ATP; Step 5: ATP has different solutions depending on whether there are obstacles: Step 5-1: When the gap detection feedback indicates that there is an obstacle, the system interacts with the Automatic Train Supervision (ATS) system and the ATO system to immediately open the door and cut off the traction, and the train is not allowed to move. At the same time, the obstacle icon is displayed on the driver interface to notify the driver that a "personnel clamp" situation has occurred. After the door is closed again, the gap detection is started again.

[0067] The ATS system is an important part of the urban rail transit signal system, and is mainly responsible for the management and control of subway operating trains and signal equipment. The ATS system uses modern data communications, computers, networks and signal technologies to achieve distributed real-time monitoring and control systems, and coordinates with other subsystems in the ATC system, such as Automatic Train Protection (ATP) and Automatic Train Operation (ATO), to jointly monitor and manage train operations.

[0068] Step 5-2: When the gap detection feedback shows that there is no obstacle for a period of time, it is determined that there is no obstacle between the door and the platform door, and the system interacts with the ATS system and the ATO system to control the departure of the train; Step 6: After the train starts to depart, the ATP system sends a low-precision train detection instruction to the CI system; Step 7: The CI system sends the low-precision detection instruction to the gap detection system through the relay interface; Step 8: After receiving the pulse, the gap detection system reduces the detection accuracy and feeds back the obstacle status to the CI system; Step 9: CI feeds back the obstacle status to ATP. If the gap detection system reports that there is an obstacle, ATP outputs emergency braking to stop the train until the detection system reports that there is no obstacle and the train can continue to run. Step 10: When the train leaves the platform area, ATP sends a stop gap detection command.

[0069] Figure 3 : is a schematic diagram of the data interaction timing of the double-precision platform gap detection method provided by the present invention, such as Figure 3As shown, the vehicle doors are closed and locked, VCBC (or ATP system) sends a start gap detection command to the CI system, the CI system forwards the start gap detection command to the gap detection system, the gap detection system performs high-precision gap detection, when the platform doors are closed and locked, the gap detection system performs low-precision gap detection, and stops gap detection after the train safely clears the platform area (VCBC (or ATP system) sends a stop gap detection command to the CI system, the CI system forwards the stop gap detection command to the gap detection system, and the gap detection system stops gap detection.

[0070] The double-precision platform gap detection device provided by the present invention is described below. The double-precision platform gap detection device described below and the double-precision platform gap detection method described above can be referred to each other.

[0071] Figure 4 is a schematic diagram of the structure of the double-precision platform gap detection device provided by the present invention, and the device is applied to the double-precision platform gap detection system, such as Figure 4 As shown, the dual-precision platform gap detection device 400 includes the following modules: The gap detection module 410 is used to perform high-precision gap detection when it is determined that the train enters the platform area; the high-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection that the obstacles are within the first spacing range; When it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed; the low-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; When it is determined that the train has cleared the platform area, gap detection is stopped.

[0072] The double-precision platform gap detection device 400 provided in this embodiment is applied to the double-precision platform gap detection system, and the gap detection module 410 is used to perform high-precision gap detection when it is determined that the train enters the platform area, wherein the high-precision gap detection is used to characterize the judgment criterion of the existence of obstacles in the gap detection, that is, the obstacle is within a first spacing range; when it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed, wherein the low-precision gap detection is used to characterize the judgment criterion of the existence of obstacles in the gap detection, that is, the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; further, when it is determined that the train has cleared the platform area, the gap detection is stopped.

[0073] The present invention starts high-precision detection after the train enters the platform area, starts low-precision detection when the train starts but before it completely leaves the platform, and stops gap detection after the train clears the platform area, thereby reducing the false alarm probability of gap detection and improving driving efficiency.

[0074] According to a double-precision platform gap detection device 400 provided by the present invention, the double-precision platform gap detection system includes an automatic train protection system, a computer interlocking system and a gap detection system, and the gap detection module 410 is specifically used for: Using the automatic train protection system, the computer interlocking system and the gap detection system to perform high-precision gap detection; The automatic train protection system, the computer interlocking system and the gap detection system are used to perform low-precision gap detection.

[0075] According to a dual-precision platform gap detection device 400 provided by the present invention, the gap detection module 410 is further used for: Utilizing the automatic train protection system to send a start instruction for a high-precision gap detection operation to the computer interlocking system; utilizing the computer interlocking system to send a high-precision detection pulse to the gap detection system via a relay interface in response to a start instruction of the high-precision gap detection operation; The gap detection system is used to control the accuracy of platform gap detection according to the high-precision detection pulse to obtain a first obstacle state in the platform gap; and the first obstacle state is fed back to the computer interlocking system; utilizing the computer interlocking system to feed back the first obstacle state to the automatic train protection system; The automatic train protection system is used to perform a first handling operation of the obstacle in response to the first obstacle state.

[0076] According to a dual-precision platform gap detection device 400 provided by the present invention, the gap detection module 410 is further used for: When the first obstacle state is that an obstacle exists, sending an instruction to the train automatic operation system to stop the movement of the train; When the first obstacle state is that there is no obstacle and the state of no obstacle lasts for a preset time period, an instruction for controlling the departure of a train is sent to an automatic train operation system.

[0077] According to a dual-precision platform gap detection device 400 provided by the present invention, the gap detection module 410 is further used for: Utilizing the automatic train protection system to send a start instruction for a low-precision gap detection operation to the computer interlocking system; utilizing the computer interlocking system to send a low-precision detection pulse to the gap detection system via a relay interface in response to a start instruction of the low-precision gap detection operation; The gap detection system is used to control the accuracy of platform gap detection according to the low-precision detection pulse to obtain a second obstacle state in the platform gap; and the second obstacle state is fed back to the computer interlocking system; utilizing the computer interlocking system to feed back the second obstacle state to the automatic train protection system; The automatic train protection system is used to perform a second handling operation of the obstacle in response to the second obstacle state.

[0078] According to a dual-precision platform gap detection device 400 provided by the present invention, the gap detection module 410 is further used for: Utilizing the automatic train protection system to send a command to the computer interlocking system to stop gap detection; utilizing the computer interlocking system to send an end detection pulse to the gap detection system via a relay interface in response to the instruction to stop gap detection; The gap detection system is used to stop gap detection of the platform gap in response to the end detection pulse.

[0079] According to a double-precision platform gap detection device 400 provided by the present invention, the device further includes a configuration module; The configuration module is specifically used for: Acquiring configuration data of the automatic train protection system and the computer interlocking system; the configuration data is used to indicate whether double-precision gap detection is required in the automatic train protection system and the computer interlocking system; When it is determined that both the automatic train protection system and the computer interlocking system require double-precision gap detection, the automatic train protection system is used to send a non-zero speed instruction to the computer interlocking system through a custom frame; the non-zero speed instruction includes a start instruction for the high-precision gap detection operation or a start instruction for the low-precision gap detection operation.

[0080] Figure 5 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 5As shown, the electronic device may include: a processor 510, a communications interface 520, a memory 530 and a communication bus 540, wherein the processor 510, the communications interface 520 and the memory 530 communicate with each other through the communication bus 540. The processor 510 may call the logic instructions in the memory 530 to execute a double-precision platform gap detection method, which is applied to a double-precision platform gap detection system, and the method includes: When it is determined that the train enters the platform area, high-precision gap detection is performed; the high-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection that the obstacles are within the first spacing range; When it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed; the low-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; When it is determined that the train has cleared the platform area, gap detection is stopped.

[0081] In addition, the logic instructions in the above-mentioned memory 530 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0082] On the other hand, the present invention further provides a computer program product, the computer program product includes a computer program, the computer program can be stored in a non-transitory computer-readable storage medium, when the computer program is executed by a processor, the computer can execute the double-precision platform gap detection method provided by the above methods, the method is applied to a double-precision platform gap detection system, the method includes: When it is determined that the train enters the platform area, high-precision gap detection is performed; the high-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection that the obstacles are within the first spacing range; When it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed; the low-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; When it is determined that the train has cleared the platform area, gap detection is stopped.

[0083] In another aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the double-precision platform gap detection method provided by the above methods is implemented, and the method is applied to a double-precision platform gap detection system, and the method includes: When it is determined that the train enters the platform area, high-precision gap detection is performed; the high-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection that the obstacles are within the first spacing range; When it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed; the low-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; When it is determined that the train has cleared the platform area, gap detection is stopped.

[0084] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0085] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-precision platform gap detection method, characterized in that: Applied to a dual-precision platform gap detection system, the method comprises: When it is determined that the train enters the platform area, high-precision gap detection is performed; the high-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection that the obstacles are within the first spacing range; When it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed; the low-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; When it is determined that the train has cleared the platform area, gap detection is stopped.

2. The double-precision platform gap detection method according to claim 1, characterized in that: The dual-precision platform gap detection system includes an automatic train protection system, a computer interlocking system and a gap detection system. The high-precision gap detection includes: Using the automatic train protection system, the computer interlocking system and the gap detection system to perform high-precision gap detection; The low-precision gap detection comprises: The automatic train protection system, the computer interlocking system and the gap detection system are used to perform low-precision gap detection.

3. The double-precision platform gap detection method according to claim 2, characterized in that: The high-precision gap detection comprises: Using the automatic train protection system, sending a start instruction for a high-precision gap detection operation to the computer interlocking system; utilizing the computer interlocking system to send a high-precision detection pulse to the gap detection system via a relay interface in response to a start instruction for the high-precision gap detection operation; The gap detection system is used to control the accuracy of platform gap detection according to the high-precision detection pulse to obtain a first obstacle state in the platform gap; and the first obstacle state is fed back to the computer interlocking system; utilizing the computer interlocking system to feed back the first obstacle state to the automatic train protection system; The automatic train protection system is used to perform a first handling operation of the obstacle in response to the first obstacle state.

4. The double-precision platform gap detection method according to claim 3, characterized in that: The step of performing a first processing operation of the obstacle in response to the first obstacle state includes: When the first obstacle state is that an obstacle exists, sending an instruction to the train automatic operation system to stop the movement of the train; When the first obstacle state is that there is no obstacle and the state of no obstacle lasts for a preset time period, an instruction for controlling the departure of a train is sent to an automatic train operation system.

5. The double-precision platform gap detection method according to claim 2, characterized in that: The low-precision gap detection comprises: Utilizing the automatic train protection system to send a start instruction for a low-precision gap detection operation to the computer interlocking system; utilizing the computer interlocking system to send a low-precision detection pulse to the gap detection system via a relay interface in response to a start instruction of the low-precision gap detection operation; The gap detection system is used to control the accuracy of platform gap detection according to the low-precision detection pulse to obtain a second obstacle state in the platform gap; and the second obstacle state is fed back to the computer interlocking system; utilizing the computer interlocking system to feed back the second obstacle state to the automatic train protection system; The automatic train protection system is used to perform a second handling operation of the obstacle in response to the second obstacle state.

6. The double-precision platform gap detection method according to claim 2, characterized in that: The stopping of gap detection comprises: Utilizing the automatic train protection system to send a command to the computer interlocking system to stop gap detection; utilizing the computer interlocking system to send an end detection pulse to the gap detection system via a relay interface in response to the instruction to stop gap detection; The gap detection system is used to stop gap detection of the platform gap in response to the end detection pulse.

7. The double-precision platform gap detection method according to claim 2, characterized in that: The method further comprises: Acquiring configuration data of the automatic train protection system and the computer interlocking system; the configuration data is used to indicate whether double-precision gap detection is required in the automatic train protection system and the computer interlocking system; When it is determined that both the automatic train protection system and the computer interlocking system require double-precision gap detection, the automatic train protection system is used to send a non-zero speed instruction to the computer interlocking system through a custom frame; the non-zero speed instruction includes a start instruction for the high-precision gap detection operation or a start instruction for the low-precision gap detection operation.

8. A double-precision platform gap detection device, characterized in that: Applied to the double-precision platform gap detection system, the device comprises: A gap detection module is used to perform high-precision gap detection when it is determined that the train enters the platform area; the high-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection that the obstacles are within the first spacing range; When it is determined that the train has started and has not completely left the platform area, low-precision gap detection is performed; the low-precision gap detection is used to characterize the judgment standard of the existence of obstacles in the gap detection, that is, the obstacle is within a second spacing range, and the second spacing range is larger than the first spacing range; When it is determined that the train has cleared the platform area, gap detection is stopped.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the double-precision platform gap detection method according to any one of claims 1 to 7 is implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the double-precision platform gap detection method according to any one of claims 1 to 7 is implemented.

11. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the double-precision platform gap detection method according to any one of claims 1 to 7 is implemented.

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