阅读说明：本技术 车轮传感器、列车检测系统、列车行驶的轨道 (Wheel sensor, train detection system, and rail on which train runs ) 是由 张振禄 于 2020-05-15 设计创作，主要内容包括：本申请实施例提供了一种车轮传感器、列车检测系统、列车行驶的轨道,其中,车轮传感器设置在列车行驶的轨道上,车轮传感器包括：第一线圈,用于产生第一磁场,列车在轨道上行驶时引起第一磁场变化以产生第一电信号；第一信号处理电路,与第一线圈电连接,用于根据第一电信号生成用于对列车进行行驶特征检测的检测信号；至少一第二线圈,用于产生第二磁场,列车在轨道上行驶时引起第二磁场变化以产生第二电信号；第二信号处理电路,与至少一第二线圈电连接,用于根据第二电信号生成第一信号处理电路工作所需的第一供电信号。本申请实施例降低了施工成本,增加了抗干扰性,降低了故障率和维修的工作量,有效保证可实现对行驶特征的检测等。(The embodiment of the application provides a track that wheel sensor, train detecting system, train travel, wherein, wheel sensor sets up on the track that the train traveled, and wheel sensor includes: a first coil for generating a first magnetic field that is caused to vary by the train as it travels over the track to generate a first electrical signal; the first signal processing circuit is electrically connected with the first coil and used for generating a detection signal for detecting the running characteristic of the train according to the first electric signal; at least one second coil for generating a second magnetic field that is caused to vary by the train while traveling on the track to generate a second electrical signal; and the second signal processing circuit is electrically connected with the at least one second coil and used for generating a first power supply signal required by the operation of the first signal processing circuit according to the second electric signal. The embodiment of the application reduces the construction cost, increases the anti-interference performance, reduces the fault rate and the maintenance workload, and effectively ensures that the detection of the running characteristics can be realized.)

1. A wheel sensor provided on a track on which a train runs, characterized by comprising:

a first coil for generating a first magnetic field, the position of the wheel sensor on the track being such that the train causes a change in the first magnetic field as it travels on the track to generate a first electrical signal;

the first signal processing circuit is electrically connected with the first coil and used for generating a detection signal for detecting the running characteristic of the train according to the first electric signal;

at least one second coil for generating a second magnetic field, the position of the wheel sensor on the track being such that the train causes a change in the second magnetic field to generate a second electrical signal when traveling on the track;

and the second signal processing circuit is electrically connected with the at least one second coil and used for generating a first power supply signal required by the operation of the first signal processing circuit according to the second electric signal.

2. The wheel sensor of claim 1, wherein the number of the second coils is at least two, and at least one of the second coils is disposed on each of left and right sides of the first coil, and the second magnetic field corresponding to at least one of the second coils that is closer to the train is first changed when the train travels on the track.

3. A wheel sensor as claimed in claim 1, wherein the first coil comprises an N-pole and an S-pole for generating the first magnetic field, the wheel sensor being positioned on the rail such that a wheel of the train cuts lines of magnetic force in the first magnetic field in a region above the N-pole or the S-pole to generate the first electrical signal when the train is travelling on the rail.

4. A wheel sensor according to claim 1, wherein the first electrical signal is a first analog electrical signal; the first signal processing circuit includes: the amplifier circuit is electrically connected with the first coil, the filter sub-circuit is electrically connected with the amplifier circuit, the analog-to-digital conversion sub-circuit is electrically connected with the filter sub-circuit, and the processor is electrically connected with the analog-to-digital conversion sub-circuit; the amplifying circuit is used for amplifying the first analog electric signal generated by the first coil to obtain the amplified first analog electric signal; the filtering sub-circuit is used for filtering the amplified first analog electric signal to obtain a filtered first analog electric signal; the analog-to-digital conversion sub-circuit is used for performing analog-to-digital conversion on the filtered first analog electric signal to obtain a first digital electric signal; the processor is used for generating a detection signal for detecting the running characteristic of the train according to the first digital electric signal.

5. A wheel sensor as claimed in claim 1, wherein the second coil comprises an N-pole and an S-pole for generating the second magnetic field, the wheel sensor being positioned on the rail such that a wheel of the train cuts lines of force in the second magnetic field in a region above the N-pole or the S-pole when the train is travelling on the rail to generate the second electrical signal.

6. A wheel sensor according to claim 1, wherein the second signal processing circuit comprises: and the rectifier sub-circuit is electrically connected with the second coil and used for rectifying the second electric signal so as to generate the first power supply signal required by the work of the first signal processing circuit according to the rectified second electric signal.

7. The wheel sensor of claim 6, further comprising: and the energy storage module is electrically connected with the rectifier sub-circuit and is used for storing the rectified second electric signal.

8. A wheel sensor according to claim 7, wherein the energy storage module comprises an energy storage capacitor and/or a rechargeable battery, and the rectified second electrical signal is stored in the energy storage capacitor and/or the rechargeable battery.

9. The wheel sensor of claim 8, wherein if the energy storage module comprises the energy storage capacitor and the rechargeable battery, the energy storage capacitor is electrically connected to the second coil, the rechargeable battery is electrically connected to the energy storage capacitor, and the energy storage capacitor is configured to store the rectified second electrical signal and charge the rechargeable battery.

10. The wheel sensor of claim 1, further comprising: the wireless communication module is electrically connected with the first signal processing circuit and used for sending the detection signal to an upper computer to detect the running characteristics of the train; the second signal processing circuit is further configured to generate a second power supply signal required by the wireless communication circuit according to the second electrical signal.

11. The wheel sensor according to any one of claims 1 to 10, wherein the first coil comprises a first magnet and a first enameled wire wound around the first magnet to form the first magnetic field; and/or the second coil comprises a second magnet and a second enameled wire, and the second enameled wire is wound on the second magnet to form the second magnetic field.

12. A train detection system comprising at least one wheel sensor, the wheel sensor being as claimed in any one of claims 1 to 11.

13. A rail on which a train travels, wherein the rail is provided with at least one wheel sensor, wherein the wheel sensor is the wheel sensor according to any one of claims 1 to 11.

Technical Field

The embodiment of the application relates to the technical field of data processing, in particular to a wheel sensor, a train detection system and a train running track.

Background

For a wheel sensor used in a train, the current working process is roughly as follows: the detection coil in the wheel sensor generates a magnetic field, when a train runs on the track, magnetic lines of force in the magnetic field are cut, an electric signal is generated, the electric signal is transmitted to a signal processing device outside the wheel sensor through a signal cable, the signal processing device performs a series of processing on the electric signal to obtain a processed electric signal, and the electric signal is transmitted to a background processor outside the wheel sensor to be processed to obtain a detection signal for detecting the running characteristic of the train.

Therefore, in order to obtain a detection signal for detecting the driving characteristics, the wheel sensor and the signal processing device need to be connected, so that long and complex engineering wiring is needed in the aspect of construction, and the signal processing device and the background processor need to be operated by an additional power supply to provide a power supply signal, so that in the aspect of construction, an external cable is additionally needed for supplying power. In summary, the use of external cables for power supply and signal cables for signal transmission leads to the necessity of earth working construction such as trenching, pipe penetration, wiring and the like during field construction, which increases the costs of labor, construction safety, construction workload, engineering cost, project period, construction time, construction quality and the like. In addition, the screening operation is frequently carried out along the railway, and the damage to the laid cable is frequently generated, so that the fault rate and the maintenance workload are increased.

In addition, if the electric signal generated by the detection coil is used to generate a detection signal for detecting the driving characteristics of the train, and is used as a power supply signal for the signal processing device and the background processor, the electric signal generated by the detection coil is distorted, and the detected driving characteristics are further unreliable and inaccurate. Moreover, compared with the case that the electric signals generated by the detection coil are all used for generating detection signals for detecting the running characteristics of the train, the detection signals can be subjected to energy attenuation, so that accurate and complete train running characteristic signals cannot be obtained, for example, wheel information is lost due to the energy attenuation of the detection signals, and if the first electric signals provide the electric signals for the wireless communication module, the energy attenuation of the detection signals is more serious. Therefore, any attenuation of the detection signal energy may result in the wheel sensor failing to accurately detect the traveling vehicle information or even failing to detect (or also referred to as a detection failure).

Disclosure of Invention

In view of the above, an object of the present invention is to provide a wheel sensor, a train detection system, and a rail on which a train runs, so as to overcome or alleviate the above-mentioned drawbacks of the prior art.

The embodiment of the application provides a wheel sensor, wheel sensor sets up on the track that the train traveles, vehicle sensor includes:

a first coil for generating a first magnetic field, the position of the wheel sensor on the track being such that the train causes a change in the first magnetic field as it travels on the track to generate a first electrical signal;

the first signal processing circuit is electrically connected with the first coil and used for generating a detection signal for detecting the running characteristic of the train according to the first electric signal;

at least one second coil for generating a second magnetic field, the position of the wheel sensor on the track being such that the train causes a change in the second magnetic field to generate a second electrical signal when traveling on the track;

and the second signal processing circuit is electrically connected with the at least one second coil and used for generating a first power supply signal required by the operation of the first signal processing circuit according to the second electric signal.

The embodiment of the application provides a train detection system, which comprises at least one wheel sensor, wherein the wheel sensor is the wheel sensor in any embodiment of the application.

The embodiment of the application provides a track that train traveles, be provided with at least one wheel sensor on the track, the wheel sensor be the wheel sensor in any embodiment of this application.

The wheel sensor provided in the embodiment has the following beneficial technical effects:

(1) the second coil may generate the second magnetic field, and when the train runs on the track, the wheel of the train cuts the magnetic lines of force in the second coil, thereby causing the second magnetic field to change, and the changed second magnetic field thereby generates a second electric signal; the second signal processing circuit may generate, from the second electrical signal, a first powering signal required for the operation of the first signal processing circuit, corresponding to the generation locally at the wheel sensor of the first powering signal required for the operation of the first signal processing circuit.

(2) The first signal processing circuit processes the first electric signal to generate a detection signal for detecting the running characteristic of the train, so that the detection signal for detecting the running characteristic of the train is generated according to the first electric signal locally on the wheel sensor, and the detection signal for detecting the running characteristic of the train is generated after the first electric signal is transmitted to a signal transmission device outside the wheel sensor and a background processor for processing, so that extra signal cable transmission design, power supply cable design and earth operation construction are not needed to lay cables (such as ditching, pipe penetrating, wiring and the like), and the cost caused by the problems of labor force of personnel, construction safety, construction workload, engineering cost, project construction period, construction time, construction quality and the like is reduced.

(3) Since the detection signal for detecting the driving characteristic of the train is generated locally at the wheel sensor from the first electrical signal, the interference immunity of the wheel sensor is increased.

(4) When the screen cleaning operation is frequently carried out along the railway, the situation that the cable is damaged is reduced due to the fact that the laying of the cable is omitted, and therefore the fault rate and the maintenance workload are reduced.

(5) The first electric signals generated by the first coil are all used for generating detection signals for detecting the running characteristics of the train, and power supply signals are not required to be provided for the first signal processing circuit to work at the same time, so that the situation that the first electric signals generated by the first coil are distorted is avoided, the integrity of the first electric signals is ensured, and the reliability of the running characteristic detection is ensured.

(6) The first electric signals generated by the first coil are all used for generating detection signals for detecting the running characteristics of the train, and the electric signals do not need to be provided for the first signal processing circuit to work at the same time, so that the energy attenuation of the detection signals is avoided, the detection of the running characteristics of the train can be effectively ensured, the information such as the number of wheel shafts of the train passing through the wheel sensor is accurately obtained, and the detected running characteristics are more accurate and complete.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1A is a block diagram of a wheel sensor according to an embodiment of the present invention;

FIG. 1B is a diagram illustrating a relationship between the first coil, the second coil and the track in FIG. 1;

FIG. 1C is a schematic diagram of another relationship between the first coil, the second coil and the track in FIG. 1;

fig. 1D is a schematic diagram of another relationship between the first coil, the second coil and the track in fig. 1.

FIG. 1E is a schematic diagram of a relationship between the first coil, the second coil and the track in FIG. 1;

FIG. 2 is a diagram illustrating a first magnetic field of a first coil according to a second embodiment of the present application;

fig. 3 is a schematic structural diagram of a first coil in the third embodiment of the present application;

fig. 4 is a schematic structural diagram of a first signal processing circuit according to a fourth embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a second signal processing circuit according to a fifth embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of an energy storage module according to a sixth embodiment of the present application;

FIG. 7 is a block diagram of a wheel sensor according to a seventh embodiment of the present invention;

fig. 8 is a block diagram of a wheel sensor according to an eighth embodiment of the present invention.

Detailed Description

It is not necessary for any particular embodiment of the invention to achieve all of the above advantages at the same time.

In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.

The following further describes specific implementations of embodiments of the present application with reference to the drawings of the embodiments of the present application.

FIG. 1A is a block diagram of a wheel sensor according to an embodiment of the present invention; as shown in fig. 1A, the wheel sensor is disposed on a rail on which a train travels, for example, by a sensor clip. In this embodiment, the wheel sensor includes: a first coil 101A, a first signal processing circuit 101B, at least one second coil 102A, and a second signal processing circuit 102B. Wherein:

the first coil 101A is used to generate a first magnetic field, and the position of the wheel sensor on the track is such that the train causes the first magnetic field to change to generate a first electrical signal when traveling on the track. For example, in this embodiment, when the train runs on the track, the wheels of the train cut the magnetic lines of the first magnetic field, so as to change the first magnetic field, and the changed first magnetic field generates the first electric signal. Illustratively, the first electrical signal may be a first induced electromotive force.

In this embodiment, the first signal processing circuit 101B is electrically connected to the first coil 101A, and is configured to generate a detection signal for detecting a running characteristic of the train from the first electric signal. Exemplarily, in the present embodiment, the electrical connection between the first signal processing circuit 101B and the first coil 101A includes a direct electrical connection or an indirect electrical connection. For the indirect electrical connection structure, for example, the first coil 101A is coupled to the first coupling coil, and the first signal processing circuit 101B is directly electrically connected to the first coupling coil, so that the first signal processing circuit 101B is indirectly electrically connected to the first coil 101A.

In this embodiment, the driving characteristics include, but are not limited to, continuous, non-contact detection, arrival of a train, train driving speed, number of wheels, train length and model number.

In this embodiment, the second coil 102A is used to generate a second magnetic field, and the position of the wheel sensor on the track is such that the second magnetic field is caused to change to generate a second electrical signal when the train travels on the track. In this embodiment, when the train runs on the track, the wheels of the train cut the magnetic lines of the second magnetic field, so as to change the second magnetic field, and the changed second magnetic field generates a second electric signal. Illustratively, the second electrical signal may be a second induced electromotive force.

In this embodiment, the second signal processing circuit 102B is electrically connected to the second coil 102A, and is configured to generate a first power supply signal required for the operation of the first signal processing circuit 101B according to the second electric signal. Exemplarily, in the present embodiment, the electrical connection between the second signal processing circuit 102B and the second coil 102A includes a direct electrical connection or an indirect electrical connection. For the implementation structure of indirect electrical connection, for example, the second coil 102A is coupled with the second coupling coil, and the second signal processing circuit 102B is directly electrically connected with the second coupling coil, so as to implement indirect electrical connection between the second signal processing circuit 102B and the second coil 102A.

In this embodiment, the number of the first coil 101A and the second coil 102A in the wheel sensor is not particularly limited.

The wheel sensor provided in the embodiment has the following beneficial technical effects:

(1) the second coil 102A may generate the second magnetic field, when the train runs on the track, the wheel of the train cuts the magnetic lines of force in the second coil 102A, thereby causing the second magnetic field to change, and the changed second magnetic field thereby generates a second electric signal; the second signal processing circuit 102B may generate the first power supply signal required for the operation of the first signal processing circuit 101B from the second electrical signal, which corresponds to the first power supply signal required for the operation of the first signal processing circuit 101B being generated locally at the wheel sensor.

(2) The first signal processing circuit 101B processes the first electrical signal to generate a detection signal for detecting the driving characteristics of the train, so that the detection signal for detecting the driving characteristics of the train is generated locally at the wheel sensor according to the first electrical signal, and the detection signal for detecting the driving characteristics of the train is generated without transmitting the first electrical signal to a signal transmission device outside the wheel sensor or processing the first electrical signal by a background processor, so that extra signal cable transmission design, power supply cable design and earthwork construction are not required to lay cables (such as trenching, pipe penetrating, wiring and the like), thereby reducing the cost caused by the problems of labor force, construction safety, construction workload, engineering cost, project period, construction time, construction quality and the like.

(3) Since the detection signal for detecting the driving characteristic of the train is generated locally at the wheel sensor from the first electrical signal, the interference immunity of the wheel sensor is increased.

(4) When the screen cleaning operation is frequently carried out along the railway, the situation that the cable is damaged is reduced due to the fact that the laying of the cable is omitted, and therefore the fault rate and the maintenance workload are reduced.

(5) The first electric signals generated by the first coil 101A are all used for generating detection signals for detecting the running characteristics of the train, and a power supply signal is not required to be provided for the first signal processing circuit 101B to work at the same time, so that the situation that the first electric signals generated by the first coil 101A are distorted is avoided, the integrity of the first electric signals is ensured, and the reliability of the running characteristic detection is ensured.

(6) The first electric signals generated by the first coil 101A are all used for generating detection signals for detecting the running characteristics of the train, and the first signal processing circuit 101B does not need to provide electric signals for working at the same time, so that the energy attenuation of the detection signals is avoided, the detection of the running characteristics can be effectively guaranteed, and the detected running characteristics are more accurate and reliable.

FIG. 1B is a diagram illustrating a relationship between the first coil, the second coil and the track in FIG. 1; as shown in fig. 1B, the first coil 101A and the second coil 102A are both disposed inside the track, and for this reason, the first magnetic field and the second magnetic field are both located inside the track.

FIG. 1C is a schematic diagram of another relationship between the first coil, the second coil and the track in FIG. 1; as shown in fig. 1C, the first coil 101A and the second coil 102A are both disposed outside the track, and for this reason, the first magnetic field and the second magnetic field are both located outside the track.

Fig. 1D is a schematic diagram of another relationship between the first coil, the second coil and the track in fig. 1. As shown in fig. 1D, the first coil 101A and the second coil 102A are disposed inside and outside the track, and for this purpose, the first magnetic field and the second magnetic field cross the inside and outside of the track.

FIG. 1E is a schematic diagram of a relationship between the first coil, the second coil and the track in FIG. 1; as shown in fig. 1E, the first magnetic field crosses the inner and outer sides of the track, and the second magnetic field is located at the inner side of the track.

Here, in fig. 1B, 1C, 1D, and 1E, the relationship between the first magnetic field, the first coil 101A, and the second coil 102A, and the track is merely for facilitating understanding of the present application, and is not intended to be a sole limitation of the present application.

In the first embodiment, the wheel sensor may further include a body, and the first coil 101A and the second coil 102A, the first signal processing circuit 101B, and the second signal processing circuit 102B are disposed in the body. For example, the body is a box, and the first coil 101A, the first signal processing circuit 101B, the at least one second coil 102A, and the second signal processing circuit 102B are disposed in the box.

In addition, the specific structure of the first coil 101A and the second coil 102A is not particularly limited, and the first coil 101A includes any structure that can generate a first magnetic field to cause a change in the first magnetic field to generate a first electric signal when the train travels on the track at a position on the track; the second coil 102A may include any structure that can generate a second magnetic field to cause a change in the second magnetic field to generate a second electrical signal when the train travels on the track at a position on the track.

The configurations of the first coil 101A and the second coil 102A provided in the following embodiments of the present application are merely examples, and are not limited thereto.

FIG. 2 is a diagram illustrating a first magnetic field of a first coil according to a second embodiment of the present application; as shown in fig. 2, the first coil includes an N pole and an S pole for generating the first magnetic field, and the position of the wheel sensor on the track is such that the wheel of the train cuts magnetic lines of force in the first magnetic field in an area above the N pole when the train runs on the track to generate the first electric signal.

In this embodiment, the position of the wheel sensor on the track enables the wheel of the train to cut the magnetic lines of force in the first magnetic field in the region above the N pole, and since the magnetic lines of force of the first magnetic field in the region above the N pole are relatively concentrated, the first magnetic field of the wheel of the train is greatly changed when the wheel of the train is cut in the region above the N pole, so as to obtain a more stable first electrical signal.

Alternatively, in other embodiments, the wheel sensor is located on the track such that the wheel of the train can cut the magnetic lines of force in the first magnetic field in the region above the S pole to generate the first electrical signal when the train runs on the track. The position of the wheel sensor on the track enables the wheels of the train to cut magnetic lines of force in the first magnetic field in the area above the S pole, and the magnetic lines of force of the first magnetic field in the area above the S pole are concentrated, so that the first magnetic field of the wheels of the train is greatly changed when the wheels of the train are cut in the area above the S pole, and a more stable first electric signal is obtained.

In one implementation of the first coil 101A, the first coil 101A includes a first magnet 121A and a first enameled wire wound around the first magnet 101A to form the first magnetic field.

Similar to the first coil 101A described above, in one implementation of the second coil 102A, the second coil 102A includes a second magnet and a second enameled wire wound around the second magnet to form the second magnetic field.

The first coil 101A and the second coil 102A are both made by winding a magnet with an enameled wire, so that the first coil 101A and the second coil 102A have the same structure, and therefore, the manufacturing cost of the coils can be reduced, and the manufacturing cost of the wheel sensor is further reduced. Of course, in other embodiments, the first coil 101A and the second coil 102A may be made in different manners, so that the first coil 101A and the second coil 102A have different structures.

Fig. 3 is a schematic structural diagram of a first coil in the third embodiment of the present application; as shown in fig. 3, in the present embodiment, the first coil includes a first bracket 111A and a U-shaped first magnet 121A, and the first magnet 121A is wound with the first enameled wire to form the first magnetic field.

Alternatively, in other embodiments, the first coil may be formed using a rectangular parallelepiped magnet.

Here, in other embodiments, the first coil 101A may not include the first bracket 111A, and the first coil 101A may be formed by two pieces of the first magnet 121A in another manner.

Like the first coil 101A shown in fig. 2 and 3, the second coil 102A may also include an N pole and an S pole for generating the second magnetic field, and the position of the wheel sensor on the track is such that the wheel of the train cuts magnetic lines of force in the second magnetic field in a region above the N pole or the S pole when the train runs on the track to generate the second electric signal.

Optionally, in an implementation of the second coil 102A, the second coil 102A includes a second magnet and a second enameled wire wound on the second magnet to form the second magnetic field.

Optionally, in a further embodiment of the second coil 102A, the second coil 102A includes a second bracket and a U-shaped second magnet, and the second magnet is wound with the second enameled wire to form the second magnetic field.

It should be noted here that, in other embodiments, the second coil 102A may not include the second bracket, and the first coil 101A may be formed by two pieces of the first magnet 121A in other manners.

Fig. 4 is a schematic structural diagram of a first signal processing circuit according to a fourth embodiment of the present disclosure; as shown in fig. 4, in the case where the first electrical signal is a first analog electrical signal, the first signal processing circuit 101B includes: the amplifier circuit 111B is electrically connected with the first coil 101A and the filter sub-circuit 121B, the filter sub-circuit 121B is electrically connected with the analog-to-digital conversion sub-circuit 131B, and the analog-to-digital conversion sub-circuit 131B is electrically connected with the processor 141B; the amplifying circuit 111B is configured to amplify the first analog electrical signal to obtain an amplified first analog electrical signal; the filtering sub-circuit 121B is configured to filter the amplified first analog electrical signal to obtain a filtered first analog electrical signal; the analog-to-digital conversion sub-circuit 131B is configured to perform analog-to-digital conversion on the filtered first analog electrical signal to obtain the first digital electrical signal; the processor 141B is configured to generate a detection signal for detecting a driving characteristic of the train according to the first digital electrical signal.

In this embodiment, the processor may be a low power consumption microprocessor. The processor generates a detection signal for detecting the running characteristics of the train according to the first digital electric signal, specifically, the detection signal is sent to an upper computer, and the upper computer judges the running characteristics of the train according to the detection signal.

Here, if the first coil 101A is structurally configured to ensure that the strength of the generated first analog electrical signal is sufficiently large, the first signal processing circuit 101B may not include the amplifying circuit 111B, and the filtering sub-circuit 121B directly filters the first analog electrical signal to obtain the filtered first analog electrical signal.

Fig. 5 is a schematic structural diagram of a second signal processing circuit according to a fifth embodiment of the present disclosure; as shown in fig. 5, the second signal processing circuit 102B includes: the rectifying sub-circuit 112B is electrically connected to the energy storage module 122B, the rectifying sub-circuit 112B is configured to rectify the second electrical signal, and the energy storage module 122B is configured to store the rectified second electrical signal.

In this embodiment, the rectifying sub-circuit 112B may be a full-bridge rectifying sub-circuit 112B, and, of course, the rectifying sub-circuit 112B may also have other structures, such as a half-bridge rectifying sub-circuit 112B.

Here, it should be noted that the second signal processing circuit 102B may not include the energy storage module 122B, for example, the energy storage module 122B is disposed in the first signal processing circuit 101B.

In this embodiment, the energy storage module 122B may also include the energy storage capacitor 1221B and/or the rechargeable battery 1222B, and the rectified second electrical signal is stored in the energy storage capacitor 1221B and/or the rechargeable battery 1222B to generate the first power supply signal required by the operation of the first signal processing circuit 101B.

Fig. 6 is a schematic structural diagram of an energy storage module according to a sixth embodiment of the present application; as shown in fig. 6, the energy storage module 122B includes the energy storage capacitor 1221B and the rechargeable battery 1222B, the energy storage capacitor 1221B is electrically connected to the second coil 102A, the rechargeable battery 1222B is electrically connected to the energy storage capacitor 1221B, the energy storage capacitor 1221B is configured to store the rectified second electrical signal and charge the rechargeable battery 1222B to generate the first power supply signal required by the operation of the first signal processing circuit 101B.

In this embodiment, the first power supply signal includes power supply signals required by the amplifying circuit 111B, the filtering sub-circuit 121B, the analog-to-digital converting sub-circuit 131B, and the processor 141B when operating.

In this embodiment, when the wheel sensor is initialized, the first signal processing circuit and the wireless communication module may be respectively provided with the first power supply signal and the second power supply signal by supplying power through the rechargeable battery, and when a train travels on the track, the energy storage capacitor is charged to charge the rechargeable battery, thereby realizing recycling of energy. The rechargeable battery may be omitted if the first and second power supply signals are provided by other power supply circuits when the wheel sensor is initialized.

FIG. 7 is a block diagram of a wheel sensor according to a seventh embodiment of the present invention; unlike the embodiment of fig. 1, the wheel sensor further includes, in addition to the embodiment of fig. 1: the wireless communication module 103 is electrically connected with the first signal processing circuit 102B and used for sending the detection signal to an upper computer to detect the running characteristics of the train; the second signal processing circuit 102B is further configured to generate a second power supply signal required by the wireless communication circuit according to the second electrical signal.

In this embodiment, the wireless communication module 103 is, for example, a long distance low power consumption data transmission module (LongRange, LORA for short).

In this embodiment, the second coil may be located on the left side or the right side of the first coil, so as to meet the power supply requirement of the second processing circuit in the wheel sensor when the train runs in one direction.

In this embodiment, since the detection signal is transmitted to the upper computer through the wireless communication module 103, additional signal cable transmission design and earthwork construction are not required to lay a sensor cable (such as trenching, pipe penetration, wiring, etc.), thereby shortening the construction time of applying the wheel sensor. In addition, when the screen cleaning operation is frequently carried out along the railway, the situation that the cable is damaged is further reduced, and therefore the fault rate and the maintenance workload are further reduced.

In this embodiment, the electrical signal generated by the second coil provides a working power supply signal for the first coil and the wireless communication module to work, so that the wheel sensor is self-powered, the design of a power supply cable and a signal transmission cable is saved, and the integrity of the first signal generated by the first coil for detecting the train wheel information in the wheel sensor is ensured, so as to ensure that the wheel sensor can accurately, completely and reliably detect the wheel information.

FIG. 8 is a block diagram of a wheel sensor according to an eighth embodiment of the present invention; as shown in fig. 8, in the wheel sensor, the number of the first coils is one, the number of the second coils is two, one second coil is respectively disposed on the left side and the right side of the first coil, and when the train runs on the track, the second magnetic field corresponding to one of the second coils that is closer to the train is caused to change first, so as to generate a first power supply signal first, so that when the first magnetic field is cut and changed, the first power supply signal enables the first signal processing circuit to generate the electric energy required by the detection signal according to the first signal, thereby ensuring that the axle is not lost, and ensuring that the detection result is accurate and reliable.

Compared with the case that only one detection coil is arranged to generate an electric signal, which is used for generating a detection signal for detecting the running characteristic of the train on the one hand, and on the other hand, the electric signal is used as a power supply signal of the signal processing device and the background processor, in this embodiment, one second coil is respectively arranged on the left side and the right side of the first coil, so that when the train runs along any one running direction, the second magnetic field corresponding to one second coil which is closer to the train in the wheel sensor is firstly changed to generate a first power supply signal, and the first power supply signal can enable the first signal processing circuit to generate the electric energy required by the detection signal according to the first signal to be satisfied.

For example, in one case, for example, a train coming close to the second coil on the left first causes the second magnetic field corresponding to the second coil on the left to change, and thus first generates the first power supply signal; and the train running close to the right second coil firstly causes the second magnetic field corresponding to the right second coil to change so as to firstly generate a first power supply signal.

Of course, according to actual needs, in other embodiments, a plurality of second coils may be disposed on the left side and the right side of the first coil, respectively.

In the above embodiments, the electrical signal generated by the second coil provides a working power supply signal for the first coil and the wireless communication module to work, so that the wheel sensor is self-powered, the design of a power supply cable and a signal transmission cable is saved, and the integrity of the first signal generated by the first coil used for detecting train wheel information in the wheel sensor is ensured, so as to ensure that the wheel sensor can accurately, completely and reliably detect the wheel information. The wheel sensor provided by each embodiment can realize self-power supply of the wheel sensor, can ensure that a detection signal of the wheel sensor for detecting train information cannot be used as a power supply signal, and ensures the integrity of the detection signal so as to ensure accurate and reliable detection of the train information.

The embodiment of the present application further provides a train detection system, which includes at least one wheel sensor, where the wheel sensor is the wheel sensor described in any embodiment of the present application.

The embodiment of the application also provides a track for running of a train, wherein at least one wheel sensor is arranged on the track, and the wheel sensor is the wheel sensor in any embodiment of the application.

Optionally, a plurality of said wheel sensors are provided on the inner side and/or side of said track.

In various embodiments, the description with reference to the figures. Certain embodiments, however, may be practiced without one or more of these specific details, or in conjunction with other known methods and structures. In the following description, numerous specific details are set forth, such as specific structures, dimensions, processes, etc., in order to provide a thorough understanding of the present invention. In other instances, well known semiconductor processing and manufacturing techniques have not been described in particular detail in order to avoid obscuring the present invention. Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or configuration, or characteristic described in connection with the embodiment, is included in at least one embodiment of the present invention. Thus, the appearances of the phrase "in one embodiment" in various places throughout this specification are not necessarily referring to the same example. Furthermore, the particular features, structures, configurations, or characteristics may be combined in any suitable manner in one or more embodiments.

The terms "generate", "on", "pair", "on" and "on" as used herein may refer to a relative position with respect to another layer or layers. One layer "on," "grown on," or "on" another layer or adhered to "another layer may be in direct contact with" another layer or may have one or more intervening layers. A layer "on" a layer may be a layer that is in direct contact with the layer or there may be one or more intervening layers.

Before proceeding with the following detailed description, it may be helpful to set forth definitions of certain words and phrases used throughout this patent document: the terms "include" and "comprise," as well as variations thereof, are meant to be inclusive and not limiting; the term "or" is inclusive, meaning and/or; the phrases "associated with …" and "associated with" and variations thereof may be intended to include, be included, "interconnected with …," inclusive, included, "connected to …" or "connected with …," "coupled to …" or "coupled with …," "communicable with …," "mated with …," staggered, juxtaposed, proximate, "constrained to …" or "constrained with …," have the properties of …, "and the like; and the term "controller" means any device, system or component thereof that controls at least one operation, such a device may be implemented in hardware, firmware or software, or some combination of at least two of the same. It should be noted that the functionality associated with any particular controller may be centralized or distributed, whether locally or remotely. Definitions for certain words and phrases are provided throughout this patent document, those of ordinary skill in the art should understand that in many, if not most instances, such definitions apply to prior art as well as to future uses of such defined words and phrases.

In the present disclosure, the expression "include" or "may include" refers to the presence of a corresponding function, operation, or element, without limiting one or more additional functions, operations, or elements. In the present disclosure, terms such as "including" and/or "having" may be understood to mean certain characteristics, numbers, steps, operations, constituent elements, or combinations thereof, and may not be understood to preclude the presence or addition of one or more other characteristics, numbers, steps, operations, constituent elements, or combinations thereof.

In the present disclosure, the expression "a or B", "at least one of a or/and B" or "one or more of a or/and B" may include all possible combinations of the listed items. For example, the expression "a or B", "at least one of a and B", or "at least one of a or B" may include: (1) at least one a, (2) at least one B, or (3) at least one a and at least one B.

The expressions "first", "second", "said first" or "said second" used in various embodiments of the present disclosure may modify various components regardless of order and/or importance, but these expressions do not limit the respective components. The foregoing description is only for the purpose of distinguishing elements from other elements. For example, the first user equipment and the second user equipment represent different user equipment, although both are user equipment. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

When an element (e.g., a first element) is referred to as being "operably or communicatively coupled" or "connected" (operably or communicatively) to "another element (e.g., a second element) or" connected "to another element (e.g., a second element), it is understood that the element is directly connected to the other element or the element is indirectly connected to the other element via yet another element (e.g., a third element). In contrast, it is understood that when an element (e.g., a first element) is referred to as being "directly connected" or "directly coupled" to another element (a second element), no element (e.g., a third element) is interposed therebetween.

The expression "configured to" as used herein may be used interchangeably with the expressions: "suitable for", "having a capacity", "designed as", "suitable for", "manufactured as" or "capable". The term "configured to" may not necessarily mean "specially designed" in hardware. Alternatively, in some cases, the expression "a device configured as …" may mean that the device is "… capable" along with other devices or components. For example, the phrase "a processor adapted (or configured) to perform A, B and C" may mean a dedicated processor (e.g., an embedded processor) for performing the respective operations only, or a general-purpose processor (e.g., a Central Processing Unit (CPU) or an Application Processor (AP)) that may perform the respective operations by executing one or more software programs stored in a memory device.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms may also include the plural forms unless the context clearly dictates otherwise.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Unless expressly defined in this disclosure, such terms as defined in commonly used dictionaries may be interpreted as having a meaning that is the same as a meaning in the context of the relevant art and should not be interpreted as having an idealized or overly formal meaning. In some cases, even terms defined in the present disclosure should not be construed to exclude embodiments of the present disclosure.

The term "module" or "functional unit" as used herein may mean, for example, a unit including hardware, software, and firmware, or a unit including a combination of two or more of hardware, software, and firmware. It should be noted that the algorithms illustrated and discussed herein have various modules that perform particular functions and interact with each other. It should be understood that for the purposes of description, these modules are separated only based on their functionality and represent computer hardware and/or executable software code stored on a computer-readable medium for execution on suitable computing hardware. The various functions of the different modules and units may be combined or separated into hardware and/or software stored on a non-transitory computer readable medium as above as modules in any way and may be used alone or in combination.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.