Track Section State Detection System and Method, and Storage Medium and Electronic Device

This application is a Continuation Application of International Patent Application No. PCT/CN2023/132474, filed on Nov. 17, 2023, which is based on and claims priority to and benefits of Chinese Patent Application No. 202211734980.9 filed on Dec. 30, 2022. The entire content of all of the above-referenced applications is incorporated herein by reference.

The present disclosure relates to the field of track transit technologies, and in particular, to a track section state detection system and method, a storage medium, and an electronic device.

In the current track transit signal system, detecting the occupation status of track section is an important safety function. At present, track circuit and axle counting device are mostly used to determine the occupation of the line by trains in the detection methods of track section occupation. In the application process of these two types of detection methods in practical project, the track circuit system is susceptible to environmental interference, resulting in high failure rate and poor shunting, which has a great impact on system operation and high subsequent operation and maintenance costs. When the axle counting system encounters an axle counting fault, reset or pre reset will have a great impact on the system operation, and these maintenance operations may lead to the failure to detect the occupation of the train on the line and give the wrong “clear” status, thus causing safety risks.

The present disclosure provides a track section state detection system and method, a storage medium, and an electronic device.

According to the first aspect of the embodiment of the present disclosure, the present disclosure provides a track section state detection system, which includes: a processor, a beacon device configured on the train, and a plurality of querier groups configured on a target track. The target track includes a plurality of track sections respectively corresponding to the querier groups. Each of the querier groups includes queriers configured at both ends of the preset track section. The processor is connected with the beacon device through the querier.

The querier is configured to broadcast a ranging signal and sending the detected beacon signal to the processor when detecting a beacon signal returned by the beacon device on the basis of the ranging signal.

The processor is configured to determine a first distance information between the train and the first querier according to the first beacon signal when receiving the first beacon signal sent by a first querier in the target querier group corresponding to the target track section, and determine a track section state of the target track section according to the first distance information. The track section state includes an occupied state or an unoccupied state. The plurality of the preset track sections includes the target track section.

In some embodiments, the processor is further configured to determine a first running state of the train relative to the target track section according to the first distance information, and determine the track section state according to the first running state.

In some embodiments, the processor is further configured to determine the first running state of the train relative to the target track section according to the first distance information when the first distance information is less than or equal to the distance threshold.

In some embodiments, the processor is further configured to determine historical distance information, which is the previous distance information between the train and the first querier determined last time, and determine the first running state according to the first distance information and the historical distance information.

In some embodiments, the first running state includes an approaching running state, a leaving running state, and a stopped state; the approaching running state indicates that the train approaches the target track section, the leaving running state indicates that the train leaves the target track section, and the stopped state indicates that the train is stationary in the target track section; and

In some embodiments, the target querier group further includes a second querier, which is a querier other than the first querier in the target querier group;

In some embodiments, the processor is further configured to determine that the first querier or the second querier is faulty when the first running state and the second running state are different.

In some embodiments, the processor is further configured to determine a first historical running state of the train, which is the previous running state of the train relative to the target track section determined last time according to the first distance information; and determine the track section state according to the first historical running state and the first running state.

In some embodiments, the system include a plurality of first queriers, and the first distance information includes the distance information between the train and each querier of the plurality first queriers;

In some embodiments, the first beacon signal includes the identification information of the train; the processor is further configured to determine that the train occupies the target track section according to the identification information when the track section state of the target track section is in the occupied state.

In some embodiments, the processor is further configured to determine the timestamp information corresponding to the first beacon signal and determine the first distance information according to the timestamp information.

In some embodiments, the processor is further configured to acquire the road information corresponding to a track section, and when the road information indicates that a track section turnout of the track section is in an activated state, configure the track section as the target track section.

In some embodiments, the queriers are further configured to receive a self-test beacon signal returned by a self-test beacon device based on the ranging signal, and send the self-test beacon signal to the processor;

According to the second aspect of the embodiment of the present disclosure, the present disclosure provides a track section state detection method, the method includes:

In some embodiments, a track section state of the target track section is determined according to the first distance information, which includes:

In some embodiments, the first running state of the train relative to the target track section is determined according to the first distance information, which includes:

In some embodiments, the first running state of the train relative to the target track section is determined according to the first distance information, which includes:

In some embodiments, the first running state comprises an approaching running state, a leaving running state and a stopped state; the approaching running state indicating that the train approaches the target track section, the leaving running state indicating that the train leaves the target track section, and the stopped state indicating that the train is stationary in the target track section;

In some embodiments, the target querier group further includes a second querier, which is the querier other than the first querier in the target querier group; the first running state is determined according to the first distance information and the historical distance information, which includes:

In some embodiments, the method further includes:

In some embodiments, the track section state is determined according to the first running state, which includes:

In some embodiments, the method includes a plurality of first queriers, and the first distance information includes the distance information between the train and each querier of the plurality of first queriers; the track section state is determined according to the first running state, which includes:

In some embodiments, the first beacon signal includes the identification information of the train; the method further includes:

In some embodiments, the first distance information between the train and the first querier is determined according to the first beacon signal, which includes:

In some embodiments, the method further includes:

In some embodiments, the method further includes:

According to the third aspect of the embodiment of the present disclosure, the present disclosure provides a non-transitory computer-readable storage medium having a computer program stored thereon, the computer program, when executed by a processor, implements the steps of the method of any one of the second aspect of the embodiment of the present disclosure.

According to the fourth aspect of the embodiment of the present disclosure, the present disclosure provides an electronic device, which includes a memory having a computer program stored thereon; a processor for executing the computer program in the memory to implement the steps of the method according to any one of the second aspect of the embodiment of the present disclosure.

The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects:

By adopting the above scheme, the distance between the train and the target querier corresponding to the target track section can be determined according to the beacon signal sent by the querier, and the occupied state of the target track section can be further determined. In this way, the wireless communication between the querier and the beacon device can avoid the communication link interruption caused by the environmental interference of the track, which will cause the communication failure, avoid the problem that the occupied state of the target track section cannot be determined due to the inability to determine the distance between the train and the target querier, and can effectively improve the reliability and safety of the occupied state detection of the section.

Other features and advantages of the present disclosure will be described in detail in the following embodiments.

The embodiments of the present disclosure are described in detail in conjunction with the figures. It should be understood that the embodiments described here are for illustration and explanation of the present disclosure, and not for limiting the present disclosure.

It should be noted that all operations of acquiring signals, information, or data in the present disclosure are carried out under the premise of compliance with the data protection laws and regulations of the respective countries and with the permission of the respective device owners.

It should be understood that the steps recorded in the method in the present disclosure can be performed in different sequences and/or in parallel. Additionally, the method may include additional steps not shown in the execution examples and/or omit steps shown in the execution examples. The disclosure is not limited in this respect. The terms “including” and its variations used in this document are open-ended, meaning “including but not limited to.” The term “based on” means “at least partially based on.” The term “an example” means “at least one example”; the term “another example” means “at least one additional example”; the term “some examples” means “at least some examples.” Definitions of other terms will be provided in the following description.

It should be noted that the terms “first,” “second,” etc. mentioned in present disclosure are configured to distinguish between different devices, modules, or units, and are not configured to limit the sequence or relationship of functions performed by these devices, modules, or units. It should be noted that the terms “one,” “multiple” used in present disclosure are illustrative rather than limiting, and a person skilled in the art should understand that unless explicitly stated otherwise in context, it should be understood as “one or more.”

Track section state detection is an important safety function of railway traffic control systems, directly affecting the scheduling safety of trains on the track. The current track section state detection methods mainly use track circuits and axle counting device to determine the occupied state of track sections. The principle of track circuit is to utilize the short circuit effect of wheel axle on rail, which is composed of rail line, rail insulation, power supply, current limiting device and receiving equipment, the sending end and receiving end are arranged on the rail to realize occupation detection within the scope of track circuit by detecting whether there is a short circuit between two rails in the section. The axle counting device uses electromagnetic principles to detect train wheels, based on the induction of metal objects (magnetic field effect or Hall effect), determine the sequence and number of times that a pair of adjacent wheel sensors detect the wheel set passing, judge the entry and departure of train axles, and realize train occupancy detection by combining the number of axles counted at the entrance and exit of the section.

However, during the application of these two types of detection methods in actual projects, the track circuit system is greatly affected by the environment. For example, the rail rust is easy to occur in the track section with small traffic flow or bad weather environment, which leads to unreliable connections in the track circuit, resulting in poor backflow, causing the track circuit to fail to work normally, and even causing a wide range of device failures, which has a great impact on the system operation and high subsequent operation and maintenance costs. When the axle counting system encounters axle counting failure, the reset or pre-reset has a great impact on the system operation, and these maintenance operations may lead to the failure to detect the occupancy of the train and the erroneous “clear” state, thus causing safety risks.

In order to solve the above problems, the present disclosure provides a track section state detection system and method, and storage medium and electronic device. In this way, the use of axle counting device and interlocking device can be avoided and the detection cost can be reduced by setting the querier to send the beacon signal. The occupied state of the section can be determined according to the distance between the train and the target querier determined by the beacon signal, which can avoid the high failure rate of the track due to environmental interference when using the track circuit system, and can effectively improve the reliability and safety of the section occupation state detection.

Before giving a detailed description of the technical solution of the present disclosure, the application scenarios of the technical solutions in the present disclosure are explained.

The track section state detection method provided by the embodiment of the disclosure can be applied to the train using rubber tire system or the train using steel axle, and the execution subject can be the train area control system of the train or other systems with execution ability, which is not further limited in the disclosure.

The following is a detailed description of the technical solution of the present disclosure.

is a block diagram of a track section state detection system according to an embodiment. As shown in, the systemincludes a processor, a beacon devicearranged/configured on the train, and a plurality of querier groups arranged on the target track. The target track includes a plurality of preset track sections, and different preset track sections correspond to different querier groups. Each of the querier groups includes the queriersset at both ends of the preset track section. The processoris communicatively connected with the beacon devicethrough the querier.

In some embodiments, a plurality of querier groups can be arranged on the track of the train running line at preset intervals. Each of the querier groups includes the queriersarranged at both ends of the preset track section. The plurality of querierscan be indicated as P→P→P→P. . . in order. The section between any two adjacent querierscan be regarded as the preset section. The queriercan be arranged in the middle of the two tracks of the line, or on the side of one of the tracks, the corresponding beacon devicecan be arranged at the front position and the rear position of the train respectively, and the beacon deviceand the queriercan be connected through wireless communication, for example, UWB ultra wideband wireless communication technology can be configured to connect.

The querieris configured to broadcast the ranging signal, and when it detects the beacon signal returned by the beacon devicebased on the ranging signal, it sends the detected beacon signal to the processor. For example, the querierand the beacon devicemay both be UWB communication devices.