Method for detecting vehicle humping speed and parking position by using intelligent roof

Abstract

The invention discloses a method for detecting vehicle humping speed and parking position by using an intelligent roof, and belongs to the technical field of real-time detection of wagon humping in a railway marshalling station. The technical problem of low in-station operation efficiency caused by lack of a real-time detection method for the humping speed and the parking position of the vehicle in the coupling area of the existing railway freight marshalling station is solved. A plurality of intelligent retarder units are arranged in a coupling area of the railway marshalling station; the intelligent retarder collects time information of pressure change in the wheel rolling process, and the instantaneous speed of the vehicle passing through the intelligent retarder is calculated according to the time information and the fixed displacement of the intelligent retarder; the rolling turns of wheels passing through the intelligent retarder are collected and recorded; uploading the calculated instantaneous speed and the recorded rolling round to a hump control system through a wireless communication module; and the hump control system judges the parking position or the pull-out state of the vehicle in the coupling area according to the rolling turns uploaded by the multiple intelligent decelerators. The operation efficiency is improved. The method is used for truck humping real-time detection.

Description

Technical Field

[0001] This invention relates to a method for detecting the shunting speed and parking position of vehicles using an intelligent top, belonging to the field of real-time detection technology for freight car shunting in railway marshalling yards. Background Technology

[0002] The speed and parking position of freight cars in railway marshalling yards are affected by various factors, such as peak loading speed, track gradient, car weight, and rolling distance. The marshalling yard's hump yard control system uses software to calculate and "preset" the rolling speed and parking position in the coupling area. However, the speed control equipment located in the coupling area often suffers from aging, oil and gas leaks, or malfunctions, leading to a decrease in speed control capability and causing significant deviations between the actual rolling speed and parking position and the "preset." When the rolling speed of the marshalling cars is too low, the parking position may be too close to the warning marker, causing "gate blockage," or there may be insufficient speed, such as less than 5 km / h, resulting in "gap" when coupling with the preceding car. Conversely, when the rolling speed is too high, it may lead to "overspeed coupling."

[0003] Currently, there is no real-time monitoring system for the speed and position of vehicles in the coupling area of ​​railway freight marshalling yards. "Blocking doors," "track closures," and "overspeed coupling" occur frequently, which not only brings a lot of extra work to the shunting operations of marshalling yards and reduces efficiency, but also poses risks such as vehicle damage, rollover, and derailment in severe cases.

[0004] In summary, the lack of real-time detection methods for the shunting speed and parking position of vehicles in the coupling area of ​​existing railway freight marshalling yards leads to technical problems such as low operational efficiency within the station. Summary of the Invention

[0005] This invention addresses the technical problem of low operational efficiency in existing railway freight marshalling yards due to the lack of real-time detection methods for the shunting speed and parking position of vehicles in the coupling area. The invention proposes a method for detecting vehicle shunting speed and parking position using an intelligent deceleration top and a hump control system.

[0006] Multiple intelligent deceleration devices are installed in the coupling area of ​​railway marshalling yards;

[0007] When a vehicle passes over any intelligent speed bump, the intelligent speed bump collects time information on the pressure change during the wheel rolling process, and calculates the instantaneous speed of the vehicle passing over the intelligent speed bump based on the time information and the fixed displacement of the intelligent speed bump.

[0008] The intelligent deceleration top collects and records the number of times a wheel passes over it;

[0009] The intelligent deceleration top will upload the calculated instantaneous speed and the recorded number of rolling wheels to the hump control system via a wireless communication module;

[0010] The hump control system determines the real-time gliding speed of the vehicle in the coupling area based on the instantaneous speed transmitted from multiple intelligent deceleration tops.

[0011] The hump control system determines the vehicle's parking position or towing status in the coupling area based on the number of rolling wheels transmitted from multiple intelligent deceleration tops.

[0012] The intelligent deceleration top includes a pressure sensor, a data acquisition unit, a central processing unit, and a wireless communication module;

[0013] Pressure sensors are used to collect pressure signals during the rolling process of vehicle wheels;

[0014] The acquisition unit is used to acquire pressure signals and record time information;

[0015] The central processing unit is used to calculate the instantaneous speed of the vehicle passing through the intelligent deceleration top based on the time information and the fixed displacement of the intelligent deceleration top, and to record the number of times the wheels pass through the intelligent deceleration top.

[0016] A wireless communication module is used to send the instantaneous speed and rolling wheel data signals to the hump control system;

[0017] The hump control system includes:

[0018] Wireless communication radio, used to receive data transmitted by each intelligent deceleration device;

[0019] The control console is used to determine the real-time gliding speed of the vehicle in the coupling zone based on the instantaneous speeds of multiple intelligent deceleration jacks, and to determine the parking position or towing status of the vehicle in the coupling zone based on the number of times the intelligent deceleration jacks have rolled over it.

[0020] As another improvement of the present invention, the calculation of the instantaneous speed of the vehicle passing through the intelligent deceleration top based on time information and fixed displacement specifically includes:

[0021] When the wheel cuts into the top arc surface of the intelligent deceleration system, the pressure sensor begins to be stressed, and this is recorded as the first moment T1.

[0022] When the wheel moves directly above the intelligent deceleration top, the pressure sensor reaches its maximum value, which is recorded as the second moment T2.

[0023] The cylinder displacement of the intelligent deceleration top is obtained as the fixed displacement S;

[0024] The fixed position is removed, and the difference between the second time T2 and the first time T1 is used to obtain the instantaneous speed V of the vehicle passing through the intelligent deceleration top, that is, V=S / (T2-T1).

[0025] As another improvement of the present invention, the vehicle's parking position in the coupling zone is determined based on the number of crushing wheels transmitted from multiple intelligent deceleration tops, specifically including:

[0026] Obtain the number of wheel rolls recorded for each intelligent deceleration jack;

[0027] The area where the intelligent deceleration jack has a rolling wheel count greater than or equal to a set threshold is defined as the area where the vehicle can completely pass through.

[0028] The area where the intelligent deceleration jack has zero rolling wheel rotations is defined as the area not reached by the vehicle.

[0029] Based on the boundary between the fully traversed area and the unreached area, the location of the vehicle's first and last wheels is determined, thereby determining the vehicle's parking position.

[0030] As another improvement of the present invention, the vehicle's pull-out status in the coupling zone is determined based on the number of crushing wheels transmitted from multiple intelligent deceleration tops, specifically including:

[0031] Obtain the number of wheel rolls recorded for each intelligent deceleration jack;

[0032] Based on the positional relationship between the intelligent deceleration jack with zero rolling wheel rotation and the intelligent deceleration jack with a set rolling wheel rotation, the positions of the first and last wheels of the vehicle before it is pulled out are determined, and the vehicle is determined to be in the pulled-out state at this moment.

[0033] As another improvement of the present invention, the hump control system assists in determining whether the current vehicle has been successfully coupled to the vehicle in front based on the real-time shunting speed and parking position.

[0034] The conditions for determining successful coupling include: after the following vehicle comes to a stop, the axle distance between the first wheel of the following vehicle and the rear wheel of the preceding vehicle is within a preset range, and the speed of the following vehicle drops suddenly from the coupling speed to zero.

[0035] As another improvement of the present invention, the intelligent deceleration top also includes a lithium battery pack, which is used to power the pressure sensor, the acquisition unit, the central processing unit and the wireless communication module.

[0036] As another improvement of the present invention, the wireless communication module is a LORA communication module.

[0037] As another improvement of the present invention, the wireless communication radio is a LORA communication radio.

[0038] As another improvement of the present invention, the intelligent deceleration top can be installed on the inside or outside. The fixed displacement S of the intelligent deceleration top installed on the inside is 72mm, and the fixed displacement S of the intelligent deceleration top installed on the outside is 64mm.

[0039] As another improvement of the present invention, the hump control system assists in determining whether the current vehicle has been successfully coupled to the vehicle in front based on the real-time shunting speed and parking position, and generates a warning message when the coupling fails.

[0040] The beneficial effects of this invention are:

[0041] The method of this invention solves the problem that the vehicle rolling speed and parking position cannot be detected in real time in the coupling area.

[0042] 1. In marshalling yards with real-time speed regulation capabilities, when the shunting speed is too high or too low, the hump control system can adjust the speed based on the real-time speed detected by the intelligent deceleration top, which can effectively avoid safety problems such as "gate blockage", "skylight", and "overspeed coupling".

[0043] 2. In marshalling yards without real-time speed control capabilities, when the shunting speed is too high or too low, the hump control system can issue a pre-alarm, prompting hump control personnel to promptly handle potential safety issues such as "door blockage," "skylight closure," and "overspeed coupling," which can effectively prevent chain accidents. For example, if "door blockage" occurs and is not dealt with in time, subsequent shunting vehicles may collide with the "blocking" vehicle, resulting in a rollover or derailment accident.

[0044] 3. The hump control system can more accurately and effectively arrange the hump speed and speed adjustment of subsequent vehicles based on the vehicle parking position detected by the intelligent deceleration top, so that the vehicle can be more accurately coupled with the parked vehicle after it is slid into the track.

[0045] 4. Combining the vehicle's parking position and speed can help analyze whether the vehicle has been successfully coupled. When a "gap" occurs, timely feedback is given to the hump control system, which can effectively avoid the risks of "coupling squeeze", "coupling breakage" or even derailment.

[0046] 5. After obtaining the real-time speed and parking position of the vehicles in the coupling area, the hump control system can arrange the operation method more flexibly and accurately, which greatly enhances the control and early warning capabilities of the hump control system. Attached Figure Description

[0047] Figure 1 This is a block diagram of the intelligent deceleration top and hump control system;

[0048] Figure 2 This is a schematic diagram of the principle of a method for measuring instantaneous speed using a smart top to detect the vehicle's rolling speed and parking position;

[0049] Figure 3 This is a schematic diagram of the principle of a method for detecting the parking position of a vehicle using an intelligent top to detect the vehicle's rolling speed and parking position according to the present invention.

[0050] Figure 4This is a schematic diagram illustrating the principle of a method for detecting the towing status of a vehicle using an intelligent top to detect the vehicle's rolling speed and parking position. Detailed Implementation

[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Specific implementation method one: Combining Figures 1 to 4 This embodiment describes a method for detecting the rolling speed and parking position of a vehicle using an intelligent deceleration top. The method is based on an intelligent deceleration top and a hump control system.

[0053] Multiple intelligent deceleration devices are installed in the coupling area of ​​railway marshalling yards;

[0054] When a vehicle passes over any intelligent speed bump, the intelligent speed bump collects time information on the pressure change during the wheel rolling process, and calculates the instantaneous speed of the vehicle passing over the intelligent speed bump based on the time information and the fixed displacement of the intelligent speed bump.

[0055] The intelligent deceleration top collects and records the number of times a wheel passes over it;

[0056] The intelligent deceleration top will upload the calculated instantaneous speed and the recorded number of rolling wheels to the hump control system via a wireless communication module;

[0057] The hump control system determines the real-time gliding speed of the vehicle in the coupling area based on the instantaneous speed transmitted from multiple intelligent deceleration tops.

[0058] The hump control system determines the vehicle's parking position or towing status in the coupling area based on the number of rolling wheels transmitted from multiple intelligent deceleration tops.

[0059] The intelligent deceleration top includes a pressure sensor, a data acquisition unit, a central processing unit, and a wireless communication module;

[0060] Pressure sensors are used to collect pressure signals during the rolling process of vehicle wheels;

[0061] The acquisition unit is used to acquire pressure signals and record time information;

[0062] The central processing unit is used to calculate the instantaneous speed of the vehicle passing through the intelligent deceleration top based on the time information and the fixed displacement of the intelligent deceleration top, and to record the number of times the wheels pass through the intelligent deceleration top.

[0063] A wireless communication module is used to send the instantaneous speed and rolling wheel data signals to the hump control system;

[0064] The hump control system includes:

[0065] Wireless communication radio, used to receive data transmitted by each intelligent deceleration device;

[0066] The control console is used to determine the real-time gliding speed of the vehicle in the coupling zone based on the instantaneous speeds of multiple intelligent deceleration jacks, and to determine the parking position or towing status of the vehicle in the coupling zone based on the number of times the intelligent deceleration jacks have rolled over it.

[0067] 1. The intelligent deceleration top mainly consists of a power supply unit, a data acquisition unit, a central processing unit, and a LoRa communication module.

[0068] Power supply unit: such as Figure 1 As shown, the power supply unit consists of a lithium battery pack, and the 3.6V output from the lithium battery pack powers the pressure sensor, the acquisition system, the central processing unit, and the LoRa communication module.

[0069] Acquisition unit: such as Figure 1 As shown, the acquisition unit consists of a deceleration top, a pressure sensor, and an acquisition system. This unit is responsible for acquiring the pressure generated by the vehicle passing over the deceleration top and transmitting the pressure to the central processing unit.

[0070] Central Processing Unit (CPU): such as Figure 1 As shown, the central processing unit is responsible for data processing, analysis, and calculation.

[0071] LoRa communication module: such as Figure 1 As shown, the LORA communication module is responsible for data communication with the hump control system.

[0072] 2. The hump control system mainly consists of a control console and a LORA communication radio.

[0073] Console: such as Figure 1 As shown, the control console is mainly responsible for controlling the route and speed of the sledding vehicles.

[0074] LORA Communications Radio: such as Figure 1 As shown, the LORA communication radio is responsible for data communication with the intelligent deceleration top.

[0075] Specific Implementation Method Two: Combining Figures 1 to 4 This embodiment differs from Specific Embodiment 1 in that it calculates the instantaneous speed of the vehicle passing through the intelligent deceleration top based on time information and a fixed displacement. Specifically, this includes:

[0076] When the wheel cuts into the arc surface of the intelligent deceleration top, the pressure sensor begins to be stressed and recorded as the first moment T1; the intelligent deceleration top starts timing from this moment.

[0077] When the wheel moves directly above the intelligent deceleration top, the pressure sensor reaches its maximum value, which is recorded as the second moment T2.

[0078] The cylinder displacement of the intelligent deceleration top is obtained as the fixed displacement S;

[0079] The instantaneous speed V of the vehicle passing through the intelligent deceleration top is obtained by removing the fixed position and using the difference between the second time T2 and the first time T1, i.e., V = S / (T2-T1). Time T1 and T2 are the measured values ​​of the intelligent deceleration top; displacement S is a constant.

[0080] Specific implementation method three: Combining Figures 1 to 4 This embodiment differs from Specific Embodiment 1 in that it determines the vehicle's parking position in the coupling zone based on the number of crushing wheels transmitted from multiple intelligent deceleration tops. Specifically, this includes:

[0081] Obtain the number of wheel rolls recorded for each intelligent deceleration jack;

[0082] The area where the intelligent deceleration jack has a rolling wheel count greater than or equal to a set threshold is defined as the area where the vehicle can completely pass through.

[0083] The area where the intelligent deceleration jack has zero rolling wheel rotations is defined as the area not reached by the vehicle.

[0084] Based on the boundary between the fully traversed area and the unreached area, the location of the vehicle's first and last wheels is determined, thereby determining the vehicle's parking position.

[0085] like Figure 3 As shown, D1 to Dn+3 represent the deceleration top numbers, and N to 0 represent the wheel rolling cycles.

[0086] Vehicle rollover detection within the coupling zone: such as Figure 3 As shown, when the vehicle rolls in the coupling zone, the intelligent deceleration jack collects a pressure cycle, which corresponds to one rolling wheel. The intelligent deceleration jack records the number of wheels passing through it in real time. When the vehicle comes to a stop in the coupling zone, the number of rolling wheels of each intelligent deceleration jack is as follows: Figure 3 As shown, a smart deceleration jack with N compaction cycles indicates that the vehicle has completely passed through, while a smart deceleration jack with 0 compaction cycles indicates that the vehicle has not reached it. Therefore, the number of compaction cycles can be used to determine the speed of the vehicle. Figure 3 (The vehicle's first wheel is positioned between Dn+1 and Dn+2, and its rear wheel is positioned between D2 and D3. Therefore, it can be determined that the vehicle has rolled to a stop between D2 and Dn+2.)

[0087] Specific implementation method four: Combination Figures 1 to 4 This embodiment differs from specific embodiment one in that it determines the vehicle's pull-out status in the coupling zone based on the number of crushing wheels transmitted from multiple intelligent deceleration tops. Specifically, this includes:

[0088] Obtain the number of wheel rolls recorded for each intelligent deceleration jack;

[0089] Based on the positional relationship between the intelligent deceleration jack with zero compaction wheel rotation and the intelligent deceleration jack with a set compaction wheel rotation, the positions of the first and last wheels of the vehicle before it is pulled out are determined, and the vehicle is confirmed to be in a pulled-out state at this moment. Vehicles within the coupling zone are pulled out from their parking positions: e.g. Figure 4 As shown, when a vehicle is pulled out of the coupling area, the intelligent deceleration jack collects a pressure cycle, which corresponds to one rolling wheel. The intelligent deceleration jack records the number of wheels passing through it in real time. When the vehicle is pulled out from its parking position, the number of rolling wheels of each intelligent deceleration jack is as follows: Figure 4 As shown, the rear wheel of the vehicle is pulled out between the intelligent deceleration tops with rolling wheel counts of 0 and 1, and the corresponding intelligent deceleration tops are D2 and D3. The first wheel of the vehicle is pulled out between the intelligent deceleration tops with rolling wheel counts of N and N-1, and the corresponding intelligent deceleration tops are Dn+1 and Dn+2. Therefore, it can be determined that the vehicle parked between D2 and Dn+2 has been pulled out.

[0090] Specific Implementation Method Five: Combining Figures 1 to 4 This embodiment differs from Specific Embodiment 1 in that the hump control system uses the real-time shunting speed and parking position to assist in determining whether the current vehicle has successfully coupled with the vehicle in front.

[0091] The conditions for determining successful coupling include: after the following vehicle comes to a stop, the axle distance between the first wheel of the following vehicle and the rear wheel of the preceding vehicle is within a preset range, and the speed of the following vehicle drops suddenly from the coupling speed to zero.

[0092] There are various models of railway freight cars. After coupling, the distance between the axle center of the tail wheel of the front car and the first wheel of the rear car is 2 to 5 meters, the interval between the two deceleration jacks is 1 meter, and the coupling speed is 5 km / h. The basis for judging the successful coupling is that after the rear car comes to a stop, the distance between the axle center of the first wheel of the rear car and the tail wheel of the front car is between 2 and 5 meters, and the speed of the rear car drops suddenly from 5 km / h to 0 km / h. If the coupling is successful, it is judged to be successful.

[0093] Specific Implementation Method Six: Combination Figures 1 to 4 This embodiment differs from Specific Embodiment 1 in that the intelligent deceleration top also includes a lithium battery pack, which powers the pressure sensor, acquisition unit, central processing unit, and wireless communication module.

[0094] Specific implementation method seven: Combination Figures 1 to 4This embodiment differs from Specific Embodiment 1 in that the wireless communication module is a LoRa communication module.

[0095] Specific implementation method eight: Combination Figures 1 to 4 This embodiment differs from Specific Embodiment 1 in that the wireless communication radio is a LORA communication radio.

[0096] Specific Implementation Method Nine: Combining Figures 1 to 4 This embodiment differs from Specific Embodiment 1 in that the intelligent deceleration top can be installed either internally or externally. The fixed displacement S of the intelligent deceleration top installed internally is 72mm, while the fixed displacement S of the intelligent deceleration top installed externally is 64mm.

[0097] Specific Implementation Method Ten: Combining Figures 1 to 4 This embodiment differs from Specific Embodiment 1 in that the hump control system uses the real-time shunting speed and parking position to help determine whether the current vehicle has successfully coupled with the vehicle in front, and generates a warning message when coupling fails.

[0098] Combination Figures 1 to 4 Explanation of the working principle of this invention:

[0099] Intelligent deceleration jacks with sensing and communication capabilities are deployed in the coupling area. By measuring the pressure changes during the wheel rolling process, the vehicle's speed and number of rolling wheels are calculated in real time. The hump control system then aggregates the data from multiple deceleration jacks to comprehensively determine the vehicle's rolling speed, parking position, and towing status.

[0100] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for detecting vehicle rolling speed and parking position using an intelligent deceleration top, the method being based on an intelligent deceleration top and a hump control system, characterized in that, Multiple intelligent deceleration devices are installed in the coupling area of ​​railway marshalling yards; When a vehicle passes over any intelligent speed bump, the intelligent speed bump collects time information on the pressure change during the wheel rolling process, and calculates the instantaneous speed of the vehicle passing over the intelligent speed bump based on the time information and the fixed displacement of the intelligent speed bump. The intelligent deceleration top collects and records the number of times a wheel passes over it; The intelligent deceleration top will upload the calculated instantaneous speed and the recorded number of rolling wheels to the hump control system via a wireless communication module; The hump control system determines the real-time gliding speed of the vehicle in the coupling area based on the instantaneous speed transmitted from multiple intelligent deceleration tops. The hump control system determines the vehicle's parking position or towing status in the coupling area based on the number of rolling wheels transmitted from multiple intelligent deceleration tops. The intelligent deceleration top includes a pressure sensor, a data acquisition unit, a central processing unit, and a wireless communication module; Pressure sensors are used to collect pressure signals during the rolling process of vehicle wheels; The acquisition unit is used to acquire pressure signals and record time information; The central processing unit is used to calculate the instantaneous speed of the vehicle passing through the intelligent deceleration top based on the time information and the fixed displacement of the intelligent deceleration top, and to record the number of times the wheels pass through the intelligent deceleration top. A wireless communication module is used to send the instantaneous speed and rolling wheel data signals to the hump control system; The hump control system includes: Wireless communication radio, used to receive data transmitted by each intelligent deceleration device; The control console is used to determine the real-time gliding speed of the vehicle in the coupling zone based on the instantaneous speeds of multiple intelligent deceleration jacks, and to determine the parking position or towing status of the vehicle in the coupling zone based on the number of times the intelligent deceleration jacks have rolled over it.

2. The method for detecting vehicle rolling speed and parking position using an intelligent top as described in claim 1, characterized in that, The calculation of the instantaneous speed of the vehicle passing through the intelligent deceleration top based on time information and fixed displacement specifically includes: When the wheel cuts into the top arc surface of the intelligent deceleration system, the pressure sensor begins to be stressed, and this is recorded as the first moment T1. When the wheel moves directly above the intelligent deceleration top, the pressure sensor reaches its maximum value, which is recorded as the second moment T2. The cylinder displacement of the intelligent deceleration top is obtained as the fixed displacement S; The fixed position is removed, and the difference between the second time T2 and the first time T1 is used to obtain the instantaneous speed V of the vehicle passing through the intelligent deceleration top, that is, V=S / (T2-T1).

3. The method for detecting vehicle rolling speed and parking position using an intelligent top as described in claim 1, characterized in that, Based on the number of crushing wheels transmitted from multiple intelligent deceleration tops, the vehicle's stopping position in the coupling zone is determined, specifically including: Obtain the number of wheel rolls recorded for each intelligent deceleration jack; The area where the intelligent deceleration jack has a rolling wheel count greater than or equal to a set threshold is defined as the area where the vehicle can completely pass through. The area where the intelligent deceleration jack has zero rolling wheel rotations is defined as the area not reached by the vehicle. Based on the boundary between the fully traversed area and the unreached area, the location of the vehicle's first and last wheels is determined, thereby determining the vehicle's parking position.

4. The method for detecting vehicle rolling speed and parking position using an intelligent top as described in claim 1, characterized in that, Based on the number of crushing wheels transmitted from multiple intelligent deceleration tops, the vehicle's pull-out status in the coupling zone is determined, specifically including: Obtain the number of wheel rolls recorded for each intelligent deceleration jack; Based on the positional relationship between the intelligent deceleration jack with zero rolling wheel rotation and the intelligent deceleration jack with a set rolling wheel rotation, the positions of the first and last wheels of the vehicle before it is pulled out are determined, and the vehicle is determined to be in the pulled-out state at this moment.

5. The method for detecting vehicle rolling speed and parking position using an intelligent top as described in claim 1, characterized in that, The hump control system uses the real-time shunting speed and parking position to help determine whether the current vehicle has been successfully coupled to the vehicle in front. The conditions for determining successful coupling include: after the following vehicle comes to a stop, the axle distance between the first wheel of the following vehicle and the rear wheel of the preceding vehicle is within a preset range, and the speed of the following vehicle drops suddenly from the coupling speed to zero.

6. The method for detecting vehicle rolling speed and parking position using an intelligent top as described in claim 1, characterized in that, The intelligent deceleration top also includes a lithium battery pack, which powers the pressure sensor, acquisition unit, central processing unit and wireless communication module.

7. The method for detecting vehicle rolling speed and parking position using an intelligent top as described in claim 1, characterized in that, The wireless communication module is a LoRa communication module.

8. The method for detecting vehicle rolling speed and parking position using an intelligent top as described in claim 7, characterized in that, The wireless communication radio is the LORA communication radio.

9. The method for detecting vehicle rolling speed and parking position using an intelligent top as described in claim 1, characterized in that, The intelligent speed reduction jack can be installed from the inside or the outside. The fixed displacement S of the intelligent speed reduction jack installed from the inside is 72mm, and the fixed displacement S of the intelligent speed reduction jack installed from the outside is 64mm.

10. The method for detecting vehicle rolling speed and parking position using an intelligent top according to claim 1, characterized in that, The hump control system uses the real-time shunting speed and parking position to help determine whether the current vehicle has successfully coupled with the vehicle in front, and generates a warning message when coupling fails.

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