Skyshuttle axle-counting system

Abstract

Disclosed in the present invention is a SkyShuttle axle-counting system. The SkyShuttle axle-counting system comprises: an axle-counting sensor, wherein the axle-counting sensor is mounted on a rail beam, the axle-counting sensor and a guide wheel are located on the same side, an axle-counting induction plate is mounted on the guide wheel, and the axle-counting induction plate is used for cutting, when a SkyShuttle vehicle passes by the axle-counting sensor, magnetic induction lines emitted by the axle-counting sensor, such that the axle-counting sensor generates an analog signal of when the SkyShuttle vehicle passes by; an indoor module, which comprises an axle-counting host unit used for receiving the analog signal, wherein the axle-counting host unit determines, on the basis of the analog signal, whether the state of a detection section is a clear state or an occupied state; and a processing module, wherein the processing module can receive information that is sent by the axle-counting host unit and indicates whether the state of the detection section is the clear state or the occupied state, and process and output the received information, and the processing module can also receive and execute a reset-to-zero instruction. By means of the interaction between the axle-counting induction plate and the axle-counting sensor, the present technical solution realizes the precise counting of the number of vehicle axles and the accurate detection of a section occupancy state, thereby ensuring the travel safety.

Description

A cloud bus axle counting system

[0001] This application claims priority to Chinese Patent Application No. 202411710309.X, filed on November 27, 2024, entitled “A Cloud Bus Axle Counting System”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of urban rail technology, and in particular to a cloud-based bus axle counting system. Background Technology

[0003] With the continuous development of society and economy, people's increasing travel demands have driven the rapid development of urban rail transit. In order to address the demand for low- and medium-capacity urban rail transit and improve the urban rail transit system, in addition to common systems such as subways, light rail, and suburban railways, many low- and medium-capacity urban rail transit systems (such as Skybus) are gradually being introduced into the market.

[0004] The axle counting system determines the occupancy or vacancy of a track section by detecting the axles. For steel-wheeled, steel-rail trains, axle sensors can directly detect the wheels to form axle counting conditions. However, Skybus vehicles typically use non-metallic materials for their running wheels and guide wheels, which cannot be directly detected by axle sensors. Furthermore, the rubber tires experience significant lateral and longitudinal displacement during vehicle operation, potentially leading to "axle loss" malfunctions. Summary of the Invention

[0005] In view of this, the present invention provides a cloud bus axle counting system that can accurately detect the occupancy status of a section and ensure driving safety.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A cloud bus axle counting system, comprising:

[0008] An axle counter sensor is mounted on the track beam and is located on the same side as the guide wheel. The guide wheel is equipped with an axle counter sensing plate. The axle counter sensing plate is used to cut the magnetic field lines emitted by the axle counter sensor when the cloud bus passes by the axle counter sensor, so that the axle counter sensor generates an analog signal when the cloud bus passes by. At least two axle counter sensors are respectively set at both ends of the same detection section.

[0009] The indoor module includes an axle counting host unit for receiving the analog signal, which determines whether the detection section is in an idle or occupied state based on the analog signal.

[0010] The processing module is capable of receiving information from the axis counting host unit indicating whether the detection section is in an idle or occupied state, and processing and outputting the information indicating whether the detection section is in an idle or occupied state. The processing module is also capable of receiving and executing a reset command.

[0011] Preferably, when the cloud bus passes the axle counting sensor, the projection of the axle counting sensor on the transverse direction of the track beam is located within the projection of the axle counting sensing plate on the transverse direction of the track beam.

[0012] Preferably, the axle counting sensor includes: a first receiving coil, a transmitting coil, and a second receiving coil arranged sequentially along the longitudinal direction of the track beam.

[0013] Preferably, the axle counting sensor plate is vertically mounted on the lower end face of the guide wheel.

[0014] Preferably, the axle counting host unit includes: a signal processing module and a counting module;

[0015] The signal processing module preprocesses the analog signal generated by the axle counter sensor, converting it into an analog level signal.

[0016] The counting module receives the analog level signal, determines whether the detection section is in an idle or occupied state based on the analog level signal, and sends the determination of whether the detection section is in an idle or occupied state to the processing module.

[0017] Preferably, the processing module includes a relay module and an interlocking system;

[0018] The relay module includes: a track relay;

[0019] The counting module, the track relay, and the interlocking system are connected in sequence. The counting module transmits the status information of the detection section as either idle or occupied to the track relay. If the track relay receives information indicating an idle status, it will activate; if it receives information indicating an occupied status, it will deactivate. The interlocking system collects the contact status of the track relay to obtain the idle or occupied status of the detection section.

[0020] Preferably, the processing module includes a relay module;

[0021] The relay module includes: a reset relay;

[0022] The reset relay is connected to the counting module. The reset relay receives and executes the reset command. The counting module collects the contact status of the reset relay and changes the occupied state of the detection section to the idle state.

[0023] Preferably, the processing module includes: a communication module and an interlocking system;

[0024] The counting module, the communication module, and the interlocking system are connected in sequence; the counting module transmits the status information of the detection section as either idle or occupied to the interlocking system through the communication module.

[0025] Preferably, the processing module includes: a communication module and an interlocking system;

[0026] The interlocking system, the communication module, and the counting module are connected in sequence; the interlocking system receives the reset command and transmits it to the counting module through the communication module, and the counting module changes the occupancy status of the detection section to an idle status.

[0027] Preferably, the indoor module further includes: a lightning protection distribution cabinet;

[0028] The input terminal of the lightning protection distribution cabinet is connected to the axle counting sensor, and the output terminal of the lightning protection distribution cabinet is connected to the axle counting host unit.

[0029] As can be seen from the above technical solution, the cloud bus axle counting system provided by the present invention achieves accurate counting of vehicle axles through the interaction between the axle counting induction plate and the axle counting sensor, thereby accurately detecting the occupancy status of the section and ensuring driving safety. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 is a schematic diagram of the structure of the axle counting sensor plate and other components provided in an embodiment of the present invention.

[0032] Figure 2 is a side view of the axle counting sensor plate and other parts provided in an embodiment of the present invention;

[0033] Figure 3 is a schematic diagram of the working principle of the axle counting sensor provided in an embodiment of the present invention;

[0034] Figure 4 is a block diagram of the cloud bus metering system provided in an embodiment of the present invention;

[0035] Figure 5 is a schematic diagram of the working principle of the cloud bus axle counting system provided in the embodiment of the present invention in relay mode;

[0036] Figure 6 is a first working principle diagram of the cloud bus metering system provided in the communication mode according to an embodiment of the present invention;

[0037] Figure 7 is a second working principle diagram of the cloud bus metering system provided in the communication mode according to an embodiment of the present invention;

[0038] Figure 8 is a schematic diagram of the working principle of the lightning protection distribution cabinet and other parts in the cloud bus metering system provided in the embodiment of the present invention.

[0039] The meanings of the various labels in the diagram are as follows: 10 is the axle counter sensor; 11 is the track beam; 12 is the guide wheel; 13 is the axle counter sensing plate; 14 is the first receiving coil; 15 is the transmitting coil; 16 is the second receiving coil; 17 is the sensing wire; 18 is the traveling wheel. 20 is the indoor module; 21 is the axle counter main unit; 211 is the voltage protection module; 212 is the signal processing module; 213 is the counting module; 22 is the lightning protection distribution cabinet; 30 is the interface module; 31 is the track relay; 32 is the zero-reset relay; 321 is the zero-reset panel; 40 is the interlocking system; 50 is the monitoring system; 60 is the communication module. Detailed Implementation

[0040] The technical solutions of 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 other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] The cloud bus axle counting system provided in this embodiment of the invention is shown in Figures 1-8.

[0042] Axle counter sensor 10 is mounted on the track beam 11, and the axle counter sensor 10 and the guide wheel 12 are located on the same side (i.e., the axle counter sensor 10 and the guide wheel 12 are on the same side of the track beam 11). The guide wheel 12 is equipped with an axle counter sensing plate 13, which is used to cut the magnetic field lines emitted by the axle counter sensor 10 when the cloud bus passes by the axle counter sensor 10, so that the axle counter sensor 10 generates an analog signal when the cloud bus passes by. At least two axle counter sensors 10 are respectively set at both ends of the same detection section.

[0043] The indoor module 20 includes an axle counting host unit 21 for receiving analog signals. The axle counting host unit 21 determines whether the detection section is in an idle state or an occupied state based on the analog signals.

[0044] The processing module can receive information from the axle counting host unit 21 indicating whether the detection section is in an idle or occupied state, and process and output the information. The processing module can also receive and execute reset commands (which can be manually input to the processing module or input from other modules) to prevent interference, system first power-on, or restart from causing the detection section to change from an idle state to an occupied state. This ensures accurate detection of the section's occupancy status and guarantees driving safety.

[0045] In this technical solution, due to the special nature of the wheels (which are rubber wheels) of the Skybus vehicle, the axle counting sensor cannot count axles by direct detection. Therefore, an axle counting sensor plate 13 is installed on the guide wheel 12. During vehicle operation, the detection plate will sequentially cut the magnetic field lines 17 of the first detection signal and the second detection signal of the axle counting sensor, as shown in Figure 3. Each time it is cut, the axle counting system will count an axle and generate an analog signal. Subsequently, the axle counting host unit 20 determines the state of the detection section as idle or occupied based on the analog signal.

[0046] In Figure 3, angle θ is the angle between the magnetic induction intensity and the perpendicular plane of the receiving coil. When there is an angle θ between the cross-sectional area S of the coil and the perpendicular plane of the magnetic induction intensity B, the magnetic flux Φ = B·S·cosθ (Equation 1). When the axle counting induction plate 13 enters the alternating magnetic field, since the permeability of metal is much greater than that of air, the magnetic lines of force move downwards, the angle θ increases, and according to Equation 1, the magnetic flux Φ decreases. The formula for calculating the induced electromotive force is E = nΔΦ / Δt. With n and t constant, Φ decreases, so the induced electromotive force E decreases, which means the induced voltage of the receiving coil decreases. By observing the change in the amplitude of the induced voltage, an analog signal is generated to achieve the purpose of wheel detection.

[0047] Compared with existing technologies, the axle counting can be accurately counted by means of the interaction between the axle counting sensor plate 13 and the axle counting sensor, as well as the adjustment function of the processing module.

[0048] The above technical solution is optimized as shown in Figures 1 and 2. When the Skybus passes the axle counter sensor 10, the projection of the axle counter sensor 10 on the transverse direction of the track beam 11 is located within the projection of the axle counter sensing plate 13 on the transverse direction of the track beam 11. This arrangement prevents the axle counter sensing plate 13 from failing to pass the sensor correctly due to shaking of the rubber wheels during vehicle operation, thus preventing a "missing axle" fault in the system. As shown in Figure 2, the detection distance L between the axle counter sensor 10 and the axle counter sensing plate 13, and the installation coverage height H of the axle counter sensor 10 (i.e., the dimension by which the axle counter sensing plate 13 is higher than the axle counter sensor 10) are specified. It should be noted that in actual applications, the detection distance L and the coverage height H can be selected according to actual needs.

[0049] The above technical solution is optimized as shown in Figure 3. The axle counting sensor 10 includes a first receiving coil 14, a transmitting coil 15, and a second receiving coil 16 arranged sequentially along the longitudinal direction of the track beam 11. It should be noted that the magnetic field lines 17 of the first receiving coil 14 form a first detection signal, and the magnetic field lines 17 of the second receiving coil 16 form a second detection signal. When the train passes by, the axle counting sensor plate 13 sequentially cuts the magnetic field lines 17 of the first receiving coil 14 and the second receiving coil 16 (or sequentially cuts the magnetic field lines 17 of the second receiving coil 16 and the first receiving coil 14). It should also be noted that the train's direction of travel can be determined based on the order in which the first and second detection signals are cut.

[0050] The above technical solution is optimized as shown in Figure 1. The axle counting sensor plate 13 is vertically installed on the lower end face of the guide wheel 12. This arrangement makes it easier for the axle counting sensor plate 13 to cut the magnetic field lines emitted by the axle counting sensor 10, thereby improving the detection accuracy.

[0051] In this technical solution, as shown in Figure 5, the axle counting host unit 21 includes: a signal processing module 212 and a counting module 213. The counting module 213 has the function of displaying axle count information and working status, as well as outputting alarm information for self-diagnosis.

[0052] The signal processing module 212 preprocesses the analog signal generated by the axle counter sensor 10 and converts it into an analog level signal;

[0053] The counting module 213 receives an analog level signal, determines whether the detection section is in an idle or occupied state based on the analog level signal, and sends the determination of whether the detection section is in an idle or occupied state to the processing module.

[0054] In the above technical solution, the signal processing module is used to evaluate and process the signal from the outdoor axle counter sensor 10, provide a recognizable level signal to the counting module, and transmit it to the counting module through an optocoupler output multiplexing interface. This signal processing module also has the function of powering the axle counter sensor 10, has self-monitoring capabilities, can output monitoring information, and has the function of outputting a level recognizable by the counting module. Each axle counter sensor 10 corresponds to one signal processing module. The counting module is the system's computing unit, employing the same hardware and software structure, using a 2-out-of-2 cross-comparison, and serial output; the software adopts a "back-to-back" design scheme to ensure the safety, accuracy, and reliability of its output. The main function of the counting module is to receive the analog level signal processed by the signal processing module in the detection section, and based on the analog level signal, determine whether the detected section is occupied by a train; in addition, the counting module can also receive wheel and axle detection information multiplexed by the signal processing board or other section signal processing boards; it should also be noted that the counting module 23 includes an axle counter host, which determines whether the detection section is in an idle or occupied state based on the analog level signal.

[0055] In one technical solution, as shown in Figure 5, it includes: a monitoring system 50, a counting module 213 that transmits information about the status of the detection section as idle or occupied to the monitoring system, the counting module 213 including a shaft counting host unit, the shaft counting host unit transmits monitoring information such as the section status to the monitoring system 50 via RS422 or Ethernet, thereby enabling the monitoring system 50 to dynamically monitor, record data and perform statistical analysis in real time.

[0056] In another technical solution, as shown in Figures 5 and 6, the axle counting host unit 21 further includes a voltage protection module 211. The voltage protection module 211 is connected between the axle counting sensor 10 and the signal processing module 212. In this technical solution, the voltage protection module 212 is located inside the axle counting host cabinet, between the axle counting sensor 10 and the signal processing module 212. The voltage protection module 212 is used to prevent overvoltage from affecting the sensor and the signal processing module. Each axle counting sensor 10 corresponds to one voltage protection module 212.

[0057] The first embodiment of the relay mode, as shown in FIG5, includes a processing module comprising a relay module 30 and an interlocking system 40.

[0058] Relay module 30 includes: track relay 31;

[0059] The counting module 213, track relay 31, and interlocking system 40 are connected in sequence. The counting module 213 transmits the information of whether the detection section is in an idle or occupied state to the track relay 31. If the received information is in an idle state, the track relay 31 is activated; if the received information is in an occupied state, the track relay is deactivated. The interlocking system 40 collects the contact status of the track relay 31 to obtain the idle or occupied state of the detection section. In the above technical solution, the operation status of the relay 31 can be used to determine whether a shuttle bus has passed through the detection section. After obtaining the idle or occupied state of the detection section, the interlocking system 40 provides the prerequisite for the lower-level machine of the interlocking system 40 to perform logical operations.

[0060] The second embodiment of the relay mode, as shown in Figures 4 and 5, includes a processing module 30;

[0061] Relay module 30 includes: a reset relay 32;

[0062] The zero-reset relay 32 is connected to the counting module 213. The zero-reset relay 32 receives and executes the zero-reset command. The counting module 213 collects the contact status of the zero-reset relay 32 and changes the occupied state of the detection section to the idle state. In the above technical solution, the zero-reset relay 32 is set to prevent certain interference, the first power-on of the system, or a restart from causing the detection section to change from an empty state to an occupied state. The counting module 213 collects the information of the zero-reset relay 32 executing the zero-reset command and changes the occupied state of the detection section to the idle state according to the execution result. It should be noted that the zero-reset command includes: a pre-zero-reset command and an immediate zero-reset command. In one possible embodiment, the zero-reset relay 32 includes a zero-reset disk 321, which can be manually pressed to perform a pre-zero-reset or immediate zero-reset. In another possible embodiment, the counting module 213 also collects other conditional information on the zero-reset relay 32.

[0063] The first embodiment of the communication mode, as shown in Figures 4 and 6, includes a processing module comprising a communication module 60 and an interlocking system 40.

[0064] The counting module 213, the communication module 60, and the interlocking system 40 are connected in sequence; the counting module 213 transmits the status information of the detection section as either idle or occupied to the interlocking system 40 through the communication module 60.

[0065] In the above technical solution, the communication module 60 directly transmits the status information of the detection section as either idle or occupied to the interlocking system 40, which greatly improves the detection speed and avoids inaccurate axle counting system due to track relay 31 failure. Preferably, the interlocking system transmits information such as the interlocking system execution status to the monitoring system 50, as shown in Figure 5.

[0066] The second embodiment of the communication mode, as shown in Figures 4 and 6, includes a processing module comprising a communication module 60 and an interlocking system 40.

[0067] The interlocking system 40, communication module 60, and counting module 213 are connected in sequence. The interlocking system 40 receives the reset command and transmits it to the counting module 213 through the communication module 60. The counting module 213 changes the occupancy status of the detection section to the idle status to prevent interference, system first power-on, or restart from causing the detection section to change from an empty state to an occupied state. It should be noted that the reset command of the interlocking system 40 can be manually input or input from other technical modules. In one embodiment, the communication module 60, one communication host unit can be configured to communicate with up to 50 sections and the interlocking system. The communication interface adopts an Ethernet interface, the physical layer interface is RJ45, and the transport layer protocol is UDP.

[0068] As shown in Figure 8, the indoor module 20 in this technical solution also includes: a lightning protection distribution cabinet 22;

[0069] The input terminal of the lightning protection distribution cabinet 22 is connected to the axle counting sensor 10, and the output terminal of the lightning protection distribution cabinet 22 is connected to the axle counting host unit 21. In this technical solution, the setting of the lightning protection distribution cabinet 21 improves the lightning protection capability of the entire line and enhances the electromagnetic interference protection capability.

[0070] In one embodiment, as shown in Figures 1-8, the cloud-based axle counting system has both a communication mode and a relay mode. The choice of which mode to use for axle counting depends on the actual situation.

[0071] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features.

[0072] The following is a further description of this solution with reference to specific embodiments:

[0073] The advantages of the invention are as follows:

[0074] 1. This invention proposes a new approach to the application of non-steel wheel and steel rail systems by addressing the axle counting problem through the installation and use of axle counting sensors and axle counting induction plates.

[0075] 2. This invention is designed for railway equipment and meets SIL4 requirements, making it highly practical.

[0076] 3. The invention conforms to the concept of a 2-out-of-2 architecture for railway equipment.

[0077] Key points of the invention concept:

[0078] 1. Axle counting sensing method: A specific axle counting sensing method is adopted, which realizes accurate counting of the number of vehicle axles through the interaction between the axle counting sensing board and the axle counting sensor.

[0079] 2. Clear core functions: By performing arithmetic operations to count and output the number of axles, the system outputs control conditions to achieve safety checks on whether the detection section is empty or occupied, thus ensuring driving safety.

[0080] 3. System Integration: Highly integrated with the fully automated operation system of the Yunba, it realizes real-time transmission and processing of axle counting information, providing a guarantee for the safe and efficient operation of trains.

[0081] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0082] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cloud-based axle counting system, comprising: The application relates to a track axle sensor (10) installed on a track beam (11) and located on the same side of a guide wheel (12) which is provided with a track axle induction plate (13) for cutting the magnetic induction lines emitted by the track axle sensor (10) when a cloud bus passes the track axle sensor (10) to make the track axle sensor (10) generate an analog signal when the cloud bus passes, wherein at least two track axle sensors (10) are arranged at two ends of a same detection section. An indoor module (20) comprises a track axle host unit (21) for receiving the analog signal, and the track axle host unit (21) determines the state of the detection section as an idle state or an occupied state based on the analog signal. A processing module can receive the information that the state of the detection section is an idle state or an occupied state sent by the track axle host unit (21) and process and output the information that the state of the detection section is an idle state or an occupied state, and the processing module can also receive and execute a zero reset instruction. When the cloud bus passes the track axle sensor (10), the projection of the track axle sensor (10) on the track beam (11) is located in the projection of the track axle induction plate (13) on the track beam (11).

2. The cloud bus axle system of claim 1, wherein, The track axle sensor (10) comprises a first receiving coil (14), a transmitting coil (15) and a second receiving coil (16) arranged in sequence along the track beam (11).

3. The cloud bus axle system of claim 1, wherein, The track axle induction plate (13) is vertically installed on the lower end surface of the guide wheel (12).

4. The cloud bus axle system of claim 1, wherein, The track axle host unit (21) comprises a signal processing module (212) and a counting module (213).

5. The Cloud Bus axle system according to any one of claims 1-4, characterized in that, The signal processing module (212) pre-processes the analog signal generated by the track axle sensor (10) to convert the analog signal into an analog level signal. The counting module (213) receives the analog level signal, determines the state of the detection section as an idle state or an occupied state based on the analog level signal, and sends the information that the state of the detection section is an idle state or an occupied state to the processing module. The processing module comprises a relay module (30) and an interlocking system (40).

6. The ZOHO axle system according to claim 5, wherein, The relay module (30) comprises a track relay (31). The counting module (213), the track relay (31) and the interlocking system (40) are connected in sequence; the counting module (213) transmits the information that the state of the detection section is an idle state or an occupied state to the track relay (31), the track relay (31) is lifted if the received information is an idle state, the track relay (31) falls if the received information is an occupied state, and the interlocking system (40) acquires the idle state or the occupied state of the detection section by collecting the contact state of the track relay (31). The processing module comprises a relay module (30).

7. The cloud bus axle system of claim 5, wherein, The relay module (30) comprises a zero reset relay (32). ​ The reset relay (32) is connected to the counting module (213), the reset relay (32) receives and executes the reset instruction, the counting module (213) collects the reset relay (32) contact state, and the detection section is changed from the occupied state to the idle state.

8. The cloud bus axle system of claim 5, wherein, The processing module comprises a communication module (60) and an interlocking system (40); The counting module (213), the communication module (60) and the interlocking system (40) are sequentially connected; the counting module (213) transmits the idle state or the occupied state information of the detection section to the interlocking system (40) through the communication module (60).

9. The cloud bus axle system of claim 5, wherein, The processing module comprises a communication module (60) and an interlocking system (40); The interlocking system (40), the communication module (60) and the counting module (213) are sequentially connected; the interlocking system (40) receives the reset instruction and transmits it to the counting module (213) through the communication module (60), and the counting module (213) changes the occupied state of the detection section to the idle state.

10. The cloud bus axle system of claim 1, wherein, The indoor module (20) further comprises a lightning protection distribution cabinet (22); The input end of the lightning protection distribution cabinet (22) is connected to the axle counting sensor (10), and the output end of the lightning protection distribution cabinet (22) is connected to the axle counting host unit (21).

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