A method and system for detecting flood-proof doors

Abstract

The embodiment of the present invention relates to a method and system for detecting flood-proof doors. The method includes: after receiving the first indication information sent by the water level detection device, the control system sends a first control instruction to the relay; after determining that the first time difference is greater than the first preset threshold, the control system starts the first ultra-wideband UWB device and the second UWB device, and receives the closing distance of the flood-proof door measured by the first UWB device; the first time difference is the time difference between the current moment and the moment when the first control instruction is sent; the control system determines whether the closing distance meets the safe closing distance; if it does not meet the safe closing distance, an alarm message indicating that the relay is abnormal is sent to the management platform. The above method makes up for the shortcomings of the prior art in controlling the closing of the flood-proof door, and timely detects whether the closing of the flood-proof door is abnormal, thereby issuing an alarm message, thereby improving the safety of the entire system.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of control systems, and in particular, to a method, system, computing device, and computer-readable storage medium for detecting flood prevention doors. Background Art

[0002] The flood control door is a door that prevents water from entering a local tunnel section from spreading to other tunnel sections. For example, when a flood occurs, the flood control door is controlled to be closed to prevent the flood from spreading indiscriminately in different tunnel sections. When there is no flood, the flood control door can be controlled to be open. In the existing flood control door system, a water level detection device is set. When the water level detection device determines that the water level is higher than the threshold, it sends an alarm message to the control system; after receiving the alarm message, the control system controls the relay to fall, thereby closing the flood control door.

[0003] However, if the relay fails, the control system cannot control the relay to fall or rise, and thus cannot control the opening or closing of the flood control door. If the flood control door fails to open when it should, or fails to close when it should, it will cause great safety hazards. Summary of the invention

[0004] An embodiment of the present invention provides a method for detecting a flood prevention door, so as to improve the safety of controlling the flood prevention door.

[0005] In a first aspect, an embodiment of the present invention provides a method for detecting a flood prevention door, comprising:

[0006] After receiving the first indication information sent by the water level detection device, the control system sends a first control instruction to the relay; the first indication information is used to indicate that the water level in the area where the flood prevention door is located is higher than the water level threshold; the first control instruction is used to control the relay to close the flood prevention door;

[0007] After determining that the first time difference is greater than the first preset threshold, the control system starts the first ultra-wideband UWB device and the second UWB device to receive the closing distance of the anti-flooding door measured by the first UWB device; the first time difference is the time difference between the current moment and the moment when the first control instruction is sent; the closing distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; the second UWB device transmits a second pulse signal of a response nature to the first UWB device at Tb2 of its own clock system, and the first UWB device receives the second pulse signal at Ta2 of its own clock system; the first UWB device determines the closing distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal; one of the first UWB device and the second UWB device is arranged on the anti-flooding door, and the other UWB device is arranged in the moving direction of the anti-flooding door and opposite to the UWB device arranged on the anti-flooding door;

[0008] The control system determines whether the closing distance meets the safety closing distance; if it does not meet the safety closing distance, an alarm message indicating that the relay is abnormal is sent to the management platform.

[0009] After receiving the first indication information sent by the water level detection device, the control system sends a first control instruction to the relay to control the relay to close the flood prevention door. In order to determine the state of the flood prevention door, a first UWB device and a second UWB device are set at the flood prevention door, so that the closing distance of the flood prevention door can be measured and the state of the flood prevention door can be determined intuitively. Specifically, after determining that the first time difference is greater than the first preset threshold, the control system starts the first ultra-wideband UWB device and the second UWB device, and receives the closing distance of the flood prevention door measured by the first UWB device. The control system determines whether the closing distance meets the safe closing distance; if it does not meet the safe closing distance, it means that the relay is abnormal and the flood prevention door is closed abnormally, and an alarm message indicating that the relay is abnormal is sent to the management platform. The above method makes up for the shortcomings of the prior art in controlling the closing of the flood prevention door, and timely detects whether the flood prevention door is closed abnormally, thereby issuing an alarm message, thereby improving the safety of the entire system.

[0010] In some embodiments, it also includes:

[0011] If the control system determines that the shutdown distance meets the safe shutdown distance, the first UWB device and the second UWB device are turned off.

[0012] Turning off the first UWB device and the second UWB device in time can save power and reduce the waste of communication resources.

[0013] In some embodiments, it also includes:

[0014] After receiving the second indication information sent by the water level detection device, the control system sends a second control instruction to the relay; the second indication information is used to indicate that the water level in the area where the flood prevention door is located is not higher than the water level threshold; the second control instruction is used to control the relay to open the flood prevention door;

[0015] After determining that the second time difference is greater than the second preset threshold, the control system starts the first UWB device and the second UWB device, and receives the first opening distance of the flood prevention door measured by the first UWB device; the second time difference is the time difference between the current moment and the moment when the second control instruction is sent; the opening distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; the second UWB device transmits a second pulse signal of a response nature to the first UWB device at Tb2 of its own clock system, and the first UWB device receives the second pulse signal at Ta2 of its own clock system; the first UWB device determines the opening distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal;

[0016] The control system determines whether the first opening distance meets the safety opening distance; if it does not meet the safety opening distance, an alarm message indicating that the relay is abnormal is sent to the management platform.

[0017] The above method makes up for the deficiency of controlling the opening of the anti-flood door in the prior art, and timely detects whether the anti-flood door is opened abnormally, thereby issuing an alarm message, thereby improving the safety of the entire system.

[0018] In some embodiments, it also includes:

[0019] If the control system determines that the first opening distance meets the safe opening distance, the first UWB device and the second UWB device are turned off.

[0020] Turning off the first UWB device and the second UWB device in time can save power and reduce the waste of communication resources.

[0021] In some embodiments, after determining that the first opening distance does not meet the safety opening distance, the method further includes:

[0022] A prompt message indicating that the flood prevention door is abnormally opened is sent to a target vehicle driving toward the flood prevention door.

[0023] In the above technical solution, prompting the target vehicle in time is conducive to changing the driving behavior of the target vehicle, improving the accuracy of the target vehicle's judgment of the surrounding environment and determining the accuracy of the driving plan, reducing the impact on the train driving and improving the safety of the train driving.

[0024] In some embodiments, the first preset threshold is determined according to the closing time of the anti-flood door.

[0025] In some embodiments, after sending a prompt message indicating that the flood prevention door is abnormally opened to the target vehicle driving towards the flood prevention door, the method further includes:

[0026] The control system determines that the second opening distance received within the preset time period meets the safe opening distance, and then sends a prompt message that the flood prevention door is opened and restored to normal to the target vehicle.

[0027] In the above technical solution, the accuracy of detecting whether the anti-flood door is normal or abnormal is improved, the accuracy of sending prompt information to the target vehicle is improved, the impact on train travel is reduced, and the safety of train travel is improved.

[0028] In a second aspect, an embodiment of the present invention further provides a system for detecting a flood-proof door, comprising: a control system, a water level detection device, a relay, a first UWB device, a second UWB device, and a flood-proof door; one of the first UWB device and the second UWB device is disposed on the flood-proof door, and the other UWB device is disposed in a moving direction of the flood-proof door and is opposite to the UWB device disposed on the flood-proof door;

[0029] The water level detection device is used to detect the water level in the area where the flood prevention door is located, and when it is determined that the water level is higher than the water level threshold, send first indication information to the control system;

[0030] The control system is used to:

[0031] After receiving the first indication information, sending a first control instruction to the relay; the first control instruction is used to control the relay to close the flood prevention door;

[0032] After determining that the first time difference is greater than the first preset threshold, start the first UWB device and the second UWB device, and receive the closing distance of the flood-proof door measured by the first UWB device; the first time difference is the time difference between the current moment and the moment when the first control instruction is sent; the closing distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; the second UWB device transmits a second pulse signal of a response nature to the first UWB device at Tb2 of its own clock system, and the first UWB device receives the second pulse signal at Ta2 of its own clock system; the first UWB device determines the closing distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal;

[0033] Determine whether the closing distance meets the safety closing distance; if it does not meet the safety closing distance, send an alarm message indicating that the relay is abnormal to the management platform.

[0034] In some embodiments, the flood-proof door is a door that falls from top to bottom, one of the first UWB device and the second UWB device is arranged on the flood-proof door, and the other UWB device is arranged at the bottom of the area where the flood-proof door is located and is opposite to the UWB device arranged on the flood-proof door; or,

[0035] The flood-proof door is a door rising from bottom to top, one of the first UWB device and the second UWB device is arranged on the flood-proof door, and the other UWB device is arranged on the top of the area where the flood-proof door is located and is opposite to the UWB device arranged on the flood-proof door; or,

[0036] The anti-flood door is a door that slides from one side to the other side, one of the first UWB device and the second UWB device is arranged on the anti-flood door, and the other UWB device is arranged on the side of the area where the anti-flood door is located and is opposite to the UWB device arranged on the anti-flood door; or,

[0037] The flood-proof door is two doors that slide relative to each other. One of the first UWB device and the second UWB device is arranged on one of the flood-proof doors, and the other UWB device is arranged on the other door of the flood-proof door and is opposite to the UWB device arranged on one of the flood-proof doors.

[0038] The setting diversity of the anti-flood door, the setting diversity of the first UWB device and the second UWB device has been increased.

[0039] In a third aspect, an embodiment of the present invention further provides a device for detecting a flood prevention door, comprising:

[0040] A sending unit, configured to send a first control instruction to a relay after receiving first indication information sent by a water level line detection device; the first indication information is used to indicate that the water level in the area where the anti-flood door is located is higher than a water level threshold; the first control instruction is used to control the relay to close the anti-flood door;

[0041] A processing unit for:

[0042] After determining that the first time difference is greater than the first preset threshold, the first ultra-wideband UWB device and the second UWB device are started to receive the closing distance of the anti-flooding door measured by the first UWB device; the first time difference is the time difference between the current moment and the moment when the first control instruction is sent; the closing distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; the second UWB device transmits a second pulse signal of a response nature to the first UWB device at Tb2 of its own clock system, and the first UWB device receives the second pulse signal at Ta2 of its own clock system; the first UWB device determines the closing distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal; one of the first UWB device and the second UWB device is set on the anti-flooding door, and the other UWB device is set in the moving direction of the anti-flooding door and opposite to the UWB device set on the anti-flooding door;

[0043] Determine whether the closing distance meets the safety closing distance; if it does not meet the safety closing distance, send an alarm message indicating that the relay is abnormal to the management platform.

[0044] In a fourth aspect, an embodiment of the present invention further provides a computing device, including:

[0045] Memory for storing computer programs;

[0046] The processor is used to call the computer program stored in the memory and execute the method for detecting the flood prevention door listed in any of the above-mentioned ways according to the obtained program.

[0047] In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer-executable program, and the computer-executable program is used to enable a computer to execute the method for detecting flood prevention doors listed in any of the above-mentioned ways. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only 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.

[0049] Figure 1 It is a schematic diagram of a system for controlling the opening and closing of a flood prevention door in the prior art;

[0050] Figure 2 A schematic diagram of a system for detecting flood-proof doors provided by an embodiment of the present invention;

[0051] Figure 3 A schematic diagram of the arrangement of a flood prevention door provided by an embodiment of the present invention;

[0052] Figure 4 A schematic diagram of the arrangement of a flood prevention door provided by an embodiment of the present invention;

[0053] Figure 5 A schematic diagram of the arrangement of a flood prevention door provided by an embodiment of the present invention;

[0054] Figure 6 A schematic diagram of the arrangement of a flood prevention door provided by an embodiment of the present invention;

[0055] Figure 7 A schematic diagram of a configuration of two UWB devices provided in an embodiment of the present invention;

[0056] Figure 8 A schematic diagram of a configuration of two UWB devices provided in an embodiment of the present invention;

[0057] Fig. 9 A schematic flow chart of a method for detecting a flood prevention door provided by an embodiment of the present invention;

[0058] Fig.10 A schematic structural diagram of a device for detecting flood prevention doors provided by an embodiment of the present invention;

[0059] Fig.11 A schematic diagram of the structure of a computer device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0060] Figure 1 A system for controlling the opening and closing of a flood prevention door in the prior art is shown, which includes a flood prevention door 100 , a relay 200 , a water level detection device 300 , a control system 400 and a target vehicle 500 .

[0061] When a flood occurs, the water level detection device 300 detects that the current water level is higher than the water level threshold, and then sends a first indication message to the control system 400; the first indication message is used to indicate that the water level in the area where the flood control door is located is higher than the water level threshold. After receiving the first indication message, the control system 400 sends a drop instruction to the relay 200, and the relay 200 implements the drop instruction to control the flood control door 100 to close. At the same time, the control system 400 sends a first instruction to the target vehicle 500 driving towards the flood control door, and after receiving the first instruction, the target vehicle 500 controls the vehicle to slow down until it stops.

[0062] When there is no flood, after the water level detection device 300 detects that the current water level is not higher than the water level threshold, it sends a second indication message to the control system 400; the second indication message is used to indicate that the water level in the area where the flood control door is located is not higher than the water level threshold. After receiving the second indication message, the control system 400 sends a lifting instruction to the relay 200, and the relay 200 implements the lifting instruction to control the flood control door 100 to open. At the same time, the control system 400 sends a second instruction to the target vehicle 500 heading for the flood control door. If the target vehicle 500 is driving normally, the target vehicle 500 will continue to drive normally after receiving the second instruction; if the target vehicle 500 is decelerating or has stopped due to receiving the first instruction, the target vehicle 500 will control the vehicle to resume driving at normal speed after receiving the second instruction.

[0063] However, when the relay 200 fails, after the control system 400 sends a drop command / lift command to the relay 200, the relay 200 does not control the opening and closing of the flood-proof door according to the drop command / lift command, and the opening and closing of the flood-proof door is abnormal. And because the control system 400 cannot know the abnormal opening and closing of the flood-proof door, the control system 400 still sends the original command to the target vehicle 500.

[0064] For example, when a flood occurs, the control system 400 sends a drop command to the relay 200, but the flood control door 100 is not closed, and the water in other tunnel sections still flows into the current tunnel section; the control system 400 sends a first command to the target vehicle 500 to slow down the target vehicle 500 until it stops. However, no instruction information such as personnel evacuation is sent to the target vehicle 500, which may easily lead to safety accidents. For another example, when the flood is lifted, the control system 400 sends a lift command to the relay 200, but the flood control door 100 is not opened; the control system 400 sends a second command to the target vehicle 500 to restore the target vehicle 500 to normal speed. In this way, the target vehicle 500 is likely to hit the closed flood control door 100, resulting in safety accidents.

[0065] Based on the above problems, an embodiment of the present invention provides a system for detecting flooding doors, such as Figure 2The system includes a flood prevention door 100, a relay 200, a water level detection device 300, a control system 400, a target vehicle 500, a first UltraWide Band (UWB) device 600 and a second UWB device 700.

[0066] The following describes how the control system detects whether the anti-flood door is closed through a specific embodiment.

[0067] The water level line detection device 300 is used to detect the water level in the area where the anti-flood door is located, and when it is determined that the water level is higher than the water level threshold, it sends first indication information to the control system.

[0068] After receiving the first indication information sent by the water level detection device 300, the control system 400 sends a first control instruction to the relay 200 to control the relay 200 to close the flood prevention door 100. At the same time, the control system 400 sends a prompt message to the target vehicle driving towards the flood prevention door that the water level is higher than the water level threshold, so the target vehicle can slow down and wait until the water level drops, or organize personnel to evacuate.

[0069] Since it takes a certain amount of time for the anti-flood door to close, the control system 400 starts the first UWB device 600 and the second UWB device 700 after determining that the first time difference is greater than the first preset threshold. The first time difference is the time difference between the current moment and the moment when the first control instruction is sent. The first preset threshold can be determined based on the closing time of the anti-flood door, or it can be determined by those skilled in the art based on actual conditions, and the embodiments of the present invention do not limit this. For example, it takes about 30 seconds for the anti-flood door to close, so the first preset threshold can be set to 30 seconds. In this way, after determining that the time difference between the current moment and the moment when the first control instruction is sent is greater than 30 seconds, the control system 400 starts the first UWB device 600 and the second UWB device 700.

[0070] The first UWB device 600 and the second UWB device 700 are arranged at the anti-flood door 100, and are used to be opened under the control of the control system 400, and measure the closing distance of the anti-flood door 100. The closing distance is measured by the first UWB device 600 by sending a pulse signal to the second UWB device 700. The setting positions of the first UWB device 600 and the second UWB device 700 can be flexibly set according to the setting of the anti-flood door 100, wherein one UWB device is arranged on the anti-flood door 100, and the other UWB device is arranged in the moving direction of the anti-flood door 100 and opposite to the UWB device arranged on the anti-flood door 100.

[0071] After calculating the closing distance of the anti-flood door 100 , the first UWB device 600 sends the closing distance to the control system 400 .

[0072] The control system 400 determines whether the closing distance meets the safety closing distance; if it does not meet the safety closing distance, an alarm message indicating that the relay 200 is abnormal is sent to the management platform. The safe closing distance can be set by a person skilled in the art based on experience and actual conditions. For example, the safe closing distance is set to 0m, for example, the safe closing distance is set to 0±0.2m. When it is determined that the closing distance meets the safety closing distance, it means that the relay 200 has not failed and the anti-flooding door 100 is closed normally, then the control system turns off the first UWB device 600 and the second UWB device 700. For example, when it is determined that the closing distance is 0.1m, which meets the safety closing distance, it means that the relay 200 has not failed and the anti-flooding door 100 is closed normally, then the control system turns off the first UWB device 600 and the second UWB device 700.

[0073] Turning off the first UWB device and the second UWB device in time can save power and reduce the waste of communication resources.

[0074] When it is determined that the closing distance does not meet the safe closing distance, it means that the relay 200 fails and the anti-flooding door 100 is not closed normally, then the control system 400 sends an alarm message indicating that the relay 200 is abnormal to the management platform. After the management platform receives the alarm message of the relay abnormality, it should repair the relay as soon as possible to ensure the normal closing of the anti-flooding door. Since the control system 400 has sent a prompt message that the water level is higher than the water level threshold to the target vehicle heading for the anti-flooding door after receiving the first indication information of the water level detection device 300, the target vehicle has slowed down and waited. If the control system 400 determines that the anti-flooding door is not closed normally, it should immediately send a prompt message for personnel evacuation to the target vehicle to ensure the safety of the personnel in the target vehicle. For example, if the control system determines that the closing distance is 8m, which does not meet the safe closing distance of 0±0.2m, the control system 400 sends an alarm message indicating that the relay 200 is abnormal to the management platform.

[0075] In some embodiments, since the first UWB device will continuously measure the closing distance after being turned on, and continuously send the closing distance to the control system, a situation may occur: the closing distance measured by the first UWB device at a certain moment does not meet the safe closing distance, but the next closing distance measured in a very short time meets the safe closing distance. The possible reason for this situation is that the UWB device has a fault that causes an error in the closing distance measurement, or the UWB device is not faulty, but the fault in the relay is quickly repaired. Therefore, the control system will also send a prompt message of abnormal closing of the flood-proof door to the target vehicle driving towards the flood-proof door, and after determining that the closing distance received within a preset period meets the safe closing distance, it will send a prompt message to the target vehicle that the closing of the flood-proof door has returned to normal.

[0076] The preset time period can be set by those skilled in the art according to actual conditions or experience, such as 5s, 3s, etc. In the above technical solution, the accuracy of detecting whether the anti-flood door is normal or abnormal is improved, and the accuracy of sending prompt information to the target vehicle is improved.

[0077] After receiving the first indication information sent by the water level detection device, the control system sends a first control instruction to the relay to control the relay to close the flood prevention door. In order to determine the state of the flood prevention door, a first UWB device and a second UWB device are set at the flood prevention door, so that the closing distance of the flood prevention door can be measured and the state of the flood prevention door can be determined intuitively. Specifically, after determining that the first time difference is greater than the first preset threshold, the control system starts the first ultra-wideband UWB device and the second UWB device, and receives the closing distance of the flood prevention door measured by the first UWB device. The control system determines whether the closing distance meets the safe closing distance; if it does not meet the safe closing distance, it means that the relay is abnormal and the flood prevention door is closed abnormally, and an alarm message indicating that the relay is abnormal is sent to the management platform. The above method makes up for the shortcomings of the prior art in controlling the closing of the flood prevention door, and timely detects whether the flood prevention door is closed abnormally, thereby issuing an alarm message, thereby improving the safety of the entire system.

[0078] The following describes how the control system detects whether the flood prevention door is open through a specific embodiment.

[0079] The water level line detection device 300 is used to detect the water level in the area where the anti-flood door is located, and when it is determined that the water level is not higher than the water level threshold, it sends second indication information to the control system.

[0080] After receiving the second indication information sent by the water level detection device 300, the control system 400 sends a second control instruction to the relay 200 to control the relay 200 to open the anti-flood door 100. At the same time, the control system 400 sends a prompt message to the target vehicle driving towards the anti-flood door that the water level is not higher than the water level threshold, so the target vehicle can drive normally. Because the water level drops, it is safe to drive at this time.

[0081] Since it takes a certain amount of time for the flood prevention door to open, the control system 400 starts the first UWB device 600 and the second UWB device 700 after determining that the second time difference is greater than the second preset threshold. The second time difference is the time difference between the current moment and the moment when the second control instruction is sent. The second preset threshold can be determined based on the opening duration of the flood prevention door, or it can be determined by those skilled in the art based on actual conditions, and the embodiments of the present invention do not limit this. For example, it takes about 30 seconds for the flood prevention door to open, so the second preset threshold can be set to 30 seconds. In this way, after determining that the time difference between the current moment and the moment when the second control instruction is sent is greater than 30 seconds, the control system 400 starts the first UWB device 600 and the second UWB device 700.

[0082] The first UWB device 600 and the second UWB device 700 are arranged at the anti-flood door 100, and are used to be opened under the control of the control system 400, and measure the first opening distance of the anti-flood door 100. The opening distance is measured by the first UWB device 600 sending a pulse signal to the second UWB device 700. The setting positions of the first UWB device 600 and the second UWB device 700 can be flexibly set according to the setting of the anti-flood door 100, wherein one UWB device is arranged on the anti-flood door 100, and the other UWB device is arranged in the moving direction of the anti-flood door 100 and is opposite to the UWB device arranged on the anti-flood door 100.

[0083] After calculating the first opening distance of the anti-flood door 100 , the first UWB device 600 sends the first opening distance to the control system 400 .

[0084] The control system 400 determines whether the first opening distance meets the safety opening distance; if it does not meet the safety opening distance, an alarm message indicating that the relay 200 is abnormal is sent to the management platform. The safe opening distance can be set by a person skilled in the art based on experience and actual conditions. For example, the safe opening distance is set to 10m, for example, the safe opening distance is set to 10±0.2m. When it is determined that the first opening distance meets the safety opening distance, it means that the relay 200 has not failed and the anti-flooding door 100 opens normally, then the control system turns off the first UWB device 600 and the second UWB device 700. For example, when it is determined that the opening distance is 10.1m, which meets the safety opening distance, it means that the relay 200 has not failed and the anti-flooding door 100 opens normally, then the control system turns off the first UWB device 600 and the second UWB device 700.

[0085] Turning off the first UWB device and the second UWB device in time can save power and reduce the waste of communication resources.

[0086] When it is determined that the first opening distance does not meet the safe opening distance, indicating that the relay 200 fails and the anti-flood door 100 does not open normally, the control system 400 sends an alarm message indicating that the relay 200 is abnormal to the management platform. After receiving the alarm message of the abnormal relay, the management platform should repair the relay as soon as possible to ensure the normal opening of the anti-flood door. Since the control system 400 has sent a prompt message to the target vehicle heading for the anti-flood door that the water level is not higher than the water level threshold after receiving the second indication information of the water level detection device 300, the target vehicle has been driving normally. If the control system 400 determines that the anti-flood door is not opened normally, it should immediately send a prompt message of abnormal opening of the anti-flood door to the target vehicle to instruct the target vehicle to stop running until the anti-flood door is opened normally. Otherwise, the target vehicle will collide with the anti-flood door that is not opened normally, causing incalculable casualties and property losses. For example, if the control system determines that the opening distance is 8m, which does not meet the safe opening distance of 10±0.2m, the control system 400 sends an alarm message indicating that the relay 200 is abnormal to the management platform, and sends a prompt message indicating that the flood door is abnormally opened to the target vehicle driving towards the flood door.

[0087] In the above technical solution, timely prompting of the target vehicle is conducive to changing the driving behavior of the target vehicle, improving the accuracy of the target vehicle's judgment of the surrounding environment, and determining the accuracy of the driving plan.

[0088] In some embodiments, since the first UWB device will continuously measure the opening distance after being turned on, and continuously send the opening distance to the control system, a situation may occur: the first opening distance measured by the first UWB device at a certain moment does not meet the safe opening distance, but the next opening distance measured in a very short time, that is, the second opening distance, meets the safe opening distance. The possible reason for this situation is that the UWB device has a fault resulting in an error in the measurement of the first opening distance, or the UWB device is not faulty, but the fault of the relay is quickly repaired. Therefore, the control system will also send a prompt message of abnormal opening of the flood-proof door to the target vehicle driving towards the flood-proof door, and after determining that the second opening distance received within a preset time period meets the safe opening distance, it will send a prompt message of normal opening of the flood-proof door to the target vehicle, to instruct the target vehicle to resume normal operation.

[0089] The preset time period can be set by those skilled in the art according to actual conditions or experience, such as 5s, 3s, etc. In the above technical solution, the accuracy of detecting whether the anti-flood door is normal or abnormal is improved, and the accuracy of sending prompt information to the target vehicle is improved.

[0090] The following describes in detail the settings of the first UWB device and the second UWB device. The settings of the UWB devices depend on the settings of the anti-flood door. The embodiment of the present invention does not limit the settings of the anti-flood door. For example, the anti-flood door can be a door that falls from top to bottom, such as Figure 3 As shown; it can also be a door that rises from bottom to top, such as Figure 4 It can also be a door that slides from one side to the other, such as Figure 5 As shown; it can also be two relatively sliding doors, such as Figure 6 shown.

[0091] The above figure also shows the possible locations of two UWB devices. Figure 3 In the embodiment, one of the UWB devices is arranged on the flood-proof door, and the other UWB device is arranged at the bottom of the area where the flood-proof door is located and is opposite to the UWB device arranged on the flood-proof door. Figure 4 In the embodiment, one of the UWB devices is arranged on the flood-proof door, and the other UWB device is arranged on the top of the area where the flood-proof door is located and is opposite to the UWB device arranged on the flood-proof door. Figure 5 In the embodiment, the flood-proof door is a door that slides from one side to the other side, one of the first UWB device and the second UWB device is arranged on the flood-proof door, and the other UWB device is arranged on the side of the area where the flood-proof door is located and opposite to the UWB device arranged on the flood-proof door. Figure 6 In the embodiment, the flood-proof door is two doors that slide relative to each other, one of the first UWB device and the second UWB device is arranged on one of the doors of the flood-proof door, and the other UWB device is arranged on the other door of the flood-proof door and is opposite to the UWB device arranged on one of the doors of the flood-proof door.

[0092] The area where the flood prevention door in the embodiment of the present invention is located may be a tunnel, a pipeline, etc., which is not limited.

[0093] For each type of flood prevention door, the location of the two UWB devices is not limited to the one shown in the figure, and those skilled in the art can flexibly change it. Figure 3 Take the flood-proof door shown in the figure as an example to introduce the Figure 3 In addition to the illustrated placement of the UWB devices, there are several possible placements of the two UWB devices.

[0094] like Figure 7 As shown, two UWB devices can be Figure 3 Based on the horizontal translation. Figure 8As shown, one of the UWB devices can also be set at the top of the anti-flood door. In this way, after receiving the opening distance sent by any UWB device, the control system needs to subtract the height of the anti-flood door to obtain the actual opening distance of the anti-flood door. Of course, one of the UWB devices can also be set in the middle of the anti-flood door. No more listing.

[0095] The first UWB device sends a pulse signal to the second UWB device to measure the opening distance or closing distance of the anti-flooding door. Generally speaking, the pulse signal sent by the first UWB device to the second UWB device is sent at a preset interval, for example, once every 1 second, so the opening distance or closing distance of the anti-flooding door can be measured every 1 second. Alternatively, the pulse signal sent by the first UWB device to the second UWB device is not sent at a preset interval, for example, sometimes a pulse signal is sent every 1 second, and sometimes a pulse signal is sent every 2 seconds, or the interval time changes in a certain pattern. Alternatively, the first UWB device sends a pulse signal to the second UWB device according to the instructions of the management personnel. The embodiments of the present invention are not limited to this.

[0096] After being turned on, the first UWB device and the second UWB device measure the opening distance or the closing distance, and the first UWB device sends each measured opening distance or closing distance to the control system.

[0097] The first UWB device and the second UWB device are set at the anti-flood door, so that the opening distance of the anti-flood door can be measured and the real-time status of the anti-flood door can be intuitively determined. With respect to the first opening distance, the control system determines whether the first opening distance meets the safety distance. If it does not meet the safety distance, it is considered that the relay may have failed and the opening and closing of the anti-flood door is abnormal. Therefore, the first control instruction is sent to the target vehicle in time for prompting. The above method makes up for the deficiency of controlling the opening or closing of the anti-flood door in the prior art, promptly instructs the target vehicle to adjust the operation plan, reduces the impact of the anti-flood door failure on the train operation, and improves the safety of the train operation.

[0098] Based on the above system architecture, an embodiment of the present invention further provides a method for detecting a flood prevention door, such as Fig. 9 As shown, including:

[0099] Step 901, after receiving the first indication information sent by the water level detection device, the control system sends a first control instruction to the relay; the first indication information is used to indicate that the water level in the area where the flood prevention door is located is higher than the water level threshold; the first control instruction is used to control the relay to close the flood prevention door;

[0100] Step 902, after determining that the first time difference is greater than the first preset threshold, the control system starts the first ultra-wideband UWB device and the second UWB device, and receives the closing distance of the anti-flooding door measured by the first UWB device; the first time difference is the time difference between the current moment and the moment when the first control instruction is sent; the closing distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; the second UWB device transmits a second pulse signal of a response nature to the first UWB device at Tb2 of its own clock system, and the first UWB device receives the second pulse signal at Ta2 of its own clock system; the first UWB device determines the closing distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal; one of the first UWB device and the second UWB device is set on the anti-flooding door, and the other UWB device is set in the moving direction of the anti-flooding door and opposite to the UWB device set on the anti-flooding door;

[0101] Step 903, the control system determines whether the closing distance meets the safety closing distance; if it does not meet the safety closing distance, an alarm message indicating that the relay is abnormal is sent to the management platform.

[0102] The control system referred to in the embodiment of the present invention can be an independent physical server, a server cluster or a distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (CDN), as well as big data and artificial intelligence platforms.

[0103] The following is a detailed introduction to the method of measuring the closing distance of flood prevention doors using UWB equipment.

[0104] UWB is based on the IEEE 802.15.4a / z technical standard. It does not require the use of a carrier wave, but transmits data by sending and receiving extremely narrow pulses at the nanosecond or picosecond level, with a bandwidth of the order of GHz. By measuring the two-way flight time of the signal in space and dividing it by 2, and then multiplying it by the speed of signal transmission, the distance between the UWB transmitting module and the UWB receiving module is obtained. UWB technology has the advantages of high precision, strong penetration, low interference, high security, simple architecture, and high stability.

[0105] The distance measurement principle of UWB is two way-time of flight (TW-TOF). The sending module and the receiving module will generate an independent clock system from the start. For the convenience of description, the first UWB device is set as the sending module and the second UWB device is set as the receiving module.

[0106] The first UWB device transmits a pulse signal of request nature at Ta1 on its own clock system, and the second UWB device receives the pulse signal at Tb1 on its own clock system; after the second UWB device processes the pulse signal, it transmits a pulse signal of response nature at Tb2 on its own clock system; the first UWB device receives the pulse signal of response nature at Ta2 on its own clock system. And the second UWB device will send both Tb1 and Tb2 to the first UWB device. Based on this, the first UWB device can determine the distance between it and the second UWB device: S = C × [(Ta2-Ta1)-(Tb2-Tb1)] / 2 (C is the speed of light).

[0107] In order to achieve synchronization at all times, the TOF ranging method uses clock offset to solve the clock synchronization problem. However, since the TOF ranging method is a spatial measurement method, the ranging accuracy is easily affected by the clock offset in the nodes at both ends. In order to reduce the impact of such errors, the reverse measurement method is used here, that is, the remote node sends a data packet, the local node receives the data packet, and responds automatically. By averaging the average of multiple forward and reverse measurements, the impact of any clock offset is reduced, thereby reducing the ranging error.

[0108] Based on the same technical concept, Fig.10 The structure of a device for detecting a flood prevention door provided by an embodiment of the present invention is exemplarily shown, and the structure can execute the process of detecting a flood prevention door.

[0109] The sending unit 1001 is used to send a first control instruction to the relay after receiving the first indication information sent by the water level detection device; the first indication information is used to indicate that the water level in the area where the flood prevention door is located is higher than the water level threshold; the first control instruction is used to control the relay to close the flood prevention door;

[0110] The processing unit 1002 is configured to:

[0111] After determining that the first time difference is greater than the first preset threshold, the first ultra-wideband UWB device and the second UWB device are started to receive the closing distance of the anti-flooding door measured by the first UWB device; the first time difference is the time difference between the current moment and the moment when the first control instruction is sent; the closing distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; the second UWB device transmits a second pulse signal of a response nature to the first UWB device at Tb2 of its own clock system, and the first UWB device receives the second pulse signal at Ta2 of its own clock system; the first UWB device determines the closing distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal; one of the first UWB device and the second UWB device is set on the anti-flooding door, and the other UWB device is set in the moving direction of the anti-flooding door and opposite to the UWB device set on the anti-flooding door;

[0112] Determine whether the closing distance meets the safety closing distance; if it does not meet the safety closing distance, send an alarm message indicating that the relay is abnormal to the management platform.

[0113] In some embodiments, the processing unit 1002 is further configured to:

[0114] If it is determined that the shutdown distance meets the safe shutdown distance, the first UWB device and the second UWB device are shut down.

[0115] In some embodiments, the processing unit 1002 is further configured to:

[0116] After receiving the second indication information sent by the water level detection device, a second control instruction is sent to the relay; the second indication information is used to indicate that the water level in the area where the flood prevention door is located is not higher than the water level threshold; the second control instruction is used to control the relay to open the flood prevention door;

[0117] After determining that the second time difference is greater than the second preset threshold, start the first UWB device and the second UWB device, and receive the first opening distance of the flood prevention door measured by the first UWB device; the second time difference is the time difference between the current moment and the moment when the second control instruction is sent; the opening distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; the second UWB device transmits a second pulse signal of a response nature to the first UWB device at Tb2 of its own clock system, and the first UWB device receives the second pulse signal at Ta2 of its own clock system; the first UWB device determines the opening distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal;

[0118] Determine whether the first opening distance meets the safety opening distance; if it does not meet the safety opening distance, send an alarm message indicating that the relay is abnormal to the management platform.

[0119] In some embodiments, the processing unit 1002 is further configured to:

[0120] If it is determined that the first activation distance meets the safe activation distance, the first UWB device and the second UWB device are turned off.

[0121] In some embodiments, the processing unit 1002 is further configured to:

[0122] A prompt message indicating that the flood prevention door is abnormally opened is sent to a target vehicle driving toward the flood prevention door.

[0123] In some embodiments, the first preset threshold is determined according to the closing time of the anti-flood door.

[0124] In some embodiments, the processing unit 1002 is further configured to:

[0125] If it is determined that the second opening distance received within the preset time period meets the safe opening distance, a prompt message that the flood prevention door is opened and restored to normal is sent to the target vehicle.

[0126] Based on the same technical concept, the embodiment of the present application provides a computer device, such as Fig.11 As shown, it includes at least one processor 1101 and a memory 1102 connected to the at least one processor. The specific connection medium between the processor 1101 and the memory 1102 is not limited in the embodiment of the present application. Fig.10For example, the processor 1101 and the memory 1102 are connected via a bus. The bus can be divided into an address bus, a data bus, a control bus, etc.

[0127] In the embodiment of the present application, the memory 1102 stores instructions that can be executed by at least one processor 1101. The at least one processor 1101 can perform the steps of the above-mentioned anti-flood door detection method by executing the instructions stored in the memory 1102.

[0128] The processor 1101 is a control system of a computer device, and various interfaces and lines can be used to connect various parts of the computer device, and the flood prevention door detection can be performed by running or executing instructions stored in the memory 1102 and calling data stored in the memory 1102. In some embodiments, the processor 1101 may include one or more processing units, and the processor 1101 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communications. It is understood that the above-mentioned modem processor may not be integrated into the processor 1101. In some embodiments, the processor 1101 and the memory 1102 may be implemented on the same chip, and in some embodiments, they may also be implemented separately on separate chips.

[0129] Processor 1101 can be a general-purpose processor, such as a central processing unit (CPU), a digital signal processor, an application-specific integrated circuit (ASIC), a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware processor for execution, or can be executed by a combination of hardware and software modules in the processor.

[0130] Memory 1102, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer executable programs and modules. Memory 1102 may include at least one type of storage medium, such as flash memory, hard disk, multimedia card, card-type memory, random access memory (Random Access Memory, RAM), static random access memory (Static Random Access Memory, SRAM), programmable read-only memory (Programmable Read Only Memory, PROM), read-only memory (Read Only Memory, ROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), magnetic memory, disk, optical disk, etc. Memory 1102 is any other medium that can be used to carry or store a desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. The memory 1102 in the embodiment of the present application can also be a circuit or any other device that can realize a storage function, for storing program instructions and / or data.

[0131] Based on the same technical concept, an embodiment of the present invention further provides a computer-readable storage medium, which stores a computer-executable program. The computer-executable program is used to enable a computer to execute the anti-flooding door detection method listed in any of the above-mentioned ways.

[0132] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0133] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0134] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0135] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0136] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for detecting flood-proof doors, It is characterized in that include: After receiving the first indication information sent by the water level detection device, the control system sends a first control instruction to the relay; the first indication information is used to indicate that the water level in the area where the flood prevention door is located is higher than the water level threshold; the first control instruction is used to control the relay to close the flood prevention door; After determining that the first time difference is greater than the first preset threshold, the control system starts the first ultra-wideband UWB device and the second UWB device, and receives the closing distance of the anti-flood door measured by the first UWB device; the first time difference is the time difference between the current moment and the moment when the first control instruction is sent; the closing distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; The second UWB device transmits a second pulse signal of a response nature to the first UWB device at time Tb2 of its own clock system, and the first UWB device receives the second pulse signal at time Ta2 of its own clock system; The first UWB device determines the closing distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal; one of the first UWB device and the second UWB device is arranged on the anti-flood door, and the other UWB device is arranged in the moving direction of the anti-flood door and is opposite to the UWB device arranged on the anti-flood door; The control system determines whether the closing distance meets the safety closing distance; if it does not meet the safety closing distance, an alarm message indicating that the relay is abnormal is sent to the management platform.

2. The method according to claim 1, It is characterized in that Also includes: If the control system determines that the shutdown distance meets the safe shutdown distance, the first UWB device and the second UWB device are turned off.

3. The method according to claim 1, It is characterized in that Also includes: After receiving the second indication information sent by the water level detection device, the control system sends a second control instruction to the relay; the second indication information is used to indicate that the water level in the area where the flood prevention door is located is not higher than the water level threshold; the second control instruction is used to control the relay to open the flood prevention door; After determining that the second time difference is greater than a second preset threshold, the control system starts the first UWB device and the second UWB device, and receives the first opening distance of the anti-flood door measured by the first UWB device; the second time difference is the time difference between the current moment and the moment when the second control instruction is sent; the opening distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; The second UWB device transmits a second pulse signal of a response nature to the first UWB device at time Tb2 of its own clock system, and the first UWB device receives the second pulse signal at time Ta2 of its own clock system; The first UWB device determines the opening distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal; The control system determines whether the first opening distance meets the safety opening distance; if it does not meet the safety opening distance, an alarm message indicating that the relay is abnormal is sent to the management platform.

4. The method according to claim 3, It is characterized in that Also includes: If the control system determines that the first opening distance meets the safe opening distance, the first UWB device and the second UWB device are turned off.

5. The method according to claim 3, It is characterized in that After determining that the first opening distance does not meet the safety opening distance, the method further includes: A prompt message indicating that the flood prevention door is abnormally opened is sent to a target vehicle driving toward the flood prevention door.

6. The method according to any one of claims 1 to 5, It is characterized in that The first preset threshold is determined according to the closing time of the anti-flood door.

7. The method according to claim 3, It is characterized in that After sending a prompt message indicating that the flood control door is abnormally opened to the target vehicle driving toward the flood control door, the method further includes: The control system determines that the second opening distance received within the preset time period meets the safe opening distance, and then sends a prompt message that the flood prevention door is opened and restored to normal to the target vehicle.

8. A system for detecting flood doors. It is characterized in that include: A control system, a water level detection device, a relay, a first UWB device, a second UWB device and a flood prevention door; one of the first UWB device and the second UWB device is arranged on the flood prevention door, and the other UWB device is arranged in the moving direction of the flood prevention door and is opposite to the UWB device arranged on the flood prevention door; The water level detection device is used to detect the water level in the area where the flood prevention door is located, and when it is determined that the water level is higher than the water level threshold, send first indication information to the control system; The control system is used to: After receiving the first indication information, sending a first control instruction to the relay; the first control instruction is used to control the relay to close the flood prevention door; After determining that the first time difference is greater than a first preset threshold, the first UWB device and the second UWB device are started, and the closing distance of the anti-flood door measured by the first UWB device is received; the first time difference is the time difference between the current moment and the moment when the first control instruction is sent; the closing distance is measured in the following manner: the first UWB device transmits a first pulse signal of a request nature to the second UWB device at Ta1 of its own clock system, and the second UWB device receives the first pulse signal at Tb1 of its own clock system; The second UWB device transmits a second pulse signal of a response nature to the first UWB device at time Tb2 of its own clock system, and the first UWB device receives the second pulse signal at time Ta2 of its own clock system; The first UWB device determines the closing distance according to Ta1, Ta2, Tb1 and Tb2 and the transmission speed of the pulse signal; Determine whether the closing distance meets the safety closing distance; if it does not meet the safety closing distance, send an alarm message indicating that the relay is abnormal to the management platform.

9. The system of claim 8, It is characterized in that The flood-proof door is a door that falls from top to bottom, one of the first UWB device and the second UWB device is arranged on the flood-proof door, and the other UWB device is arranged at the bottom of the area where the flood-proof door is located and is opposite to the UWB device arranged on the flood-proof door; or, The flood-proof door is a door rising from bottom to top, one of the first UWB device and the second UWB device is arranged on the flood-proof door, and the other UWB device is arranged on the top of the area where the flood-proof door is located and is opposite to the UWB device arranged on the flood-proof door; or, The anti-flood door is a door that slides from one side to the other side, one of the first UWB device and the second UWB device is arranged on the anti-flood door, and the other UWB device is arranged on the side of the area where the anti-flood door is located and is opposite to the UWB device arranged on the anti-flood door; or, The flood-proof door is two doors that slide relative to each other. One of the first UWB device and the second UWB device is arranged on one of the flood-proof doors, and the other UWB device is arranged on the other door of the flood-proof door and is opposite to the UWB device arranged on one of the flood-proof doors.

10. A computing device, It is characterized in that include: Memory for storing computer programs; A processor, configured to call a computer program stored in the memory, and execute the method according to any one of claims 1 to 7 according to the obtained program.

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