Train wheel diameter correction method and device

Abstract

The present invention provides a method and device for correcting the wheel diameter of a train, the method comprising: obtaining a first moment and a second moment corresponding to when a first wheel group of a train passes through a first transponder and a second transponder respectively, the first wheel group being electrically connected to a first sensor; obtaining a third moment of the second wheel group based on the first moment and a time error, and obtaining a fourth moment of the second wheel group based on the second moment and a time error, the time error being the time difference between a first ATP system corresponding to the first wheel group and a second ATP system corresponding to the second wheel group, the second wheel group being electrically connected to a second sensor; determining the wheel diameter of the second wheel group based on the third moment and the fourth moment; the method of the present invention can realize the correction of wheel diameter values ​​at different positions of the train, thereby improving the correction accuracy of the train wheel diameter values.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular to a method and device for correcting the wheel diameter of a train. Background Art

[0002] When a train is moving, the friction between the wheels and the tracks will cause the wheels to wear, resulting in a decrease in the wheel diameter value, which in turn affects the speed and distance measurement results based on the wheel axle of the train ATP system.

[0003] In order to improve the accuracy of the ATP system's speed and distance measurement, related technologies use manual periodic maintenance or simple wheel diameter automatic correction technology. However, manual periodic maintenance is time-consuming and occupies more human resources, making the wheel diameter correction inefficient. When using simple wheel diameter automatic correction technology, the wheel diameter values ​​of all wheels of the train are assumed to be the same. If only one wheel set is corrected, it is considered that all wheels have been corrected, resulting in lower accuracy during wheel diameter correction. Summary of the Invention

[0004] The present invention provides a train wheel diameter correction method and device, which are used to solve the defect of the prior art that the wheel diameter values ​​of all wheel groups of the train are assumed to be the same when correcting the train wheel diameter, resulting in low correction accuracy, and to achieve higher-precision train wheel diameter value correction.

[0005] The present invention provides a train wheel diameter correction method, comprising:

[0006] Obtaining a first moment and a second moment corresponding to when a first wheelset of a train passes through a first transponder and a second transponder, respectively, where the first wheelset is electrically connected to a first sensor, and the first sensor is used to collect pulse information corresponding to the first wheelset;

[0007] Obtaining a third moment of the second wheel group based on the first moment and the time error, and obtaining a fourth moment of the second wheel group based on the second moment and the time error, wherein the time error is a time difference between a first ATP system corresponding to the first wheel group and a second ATP system corresponding to the second wheel group, wherein the second wheel group is electrically connected to a second sensor, and the second sensor is used to collect pulse information corresponding to the second wheel group;

[0008] The wheel diameter of the second wheel set is determined based on the third moment and the fourth moment.

[0009] According to a train wheel diameter correction method provided by the present invention, the time error is obtained by the following steps:

[0010] Obtain a first sending time, a first receiving time, a second sending time, and a second receiving time, wherein the first sending time is the time when the second ATP system sends a time message, the first receiving time is the time when the first ATP system receives the time message, the second sending time is the time when the first ATP system sends a timing message to the second ATP system after receiving the timing message, and the second receiving time is the time when the second ATP system receives the timing message;

[0011] The time error is obtained based on the first sending time, the first receiving time, the second sending time and the second receiving time.

[0012] According to a train wheel diameter correction method provided by the present invention, obtaining the time error based on the first sending time, the first receiving time, the second sending time, and the second receiving time includes:

[0013] The response time T of the first ATP system is obtained according to the following formula res :

[0014] T res =T3-T2,

[0015] The transmission delay T between the first ATP system and the second ATP system is obtained according to the following formula delay :

[0016] T delay =(T4-T1)-T res =(T4-T1)-(T3-T2),

[0017] The time difference T between the first ATP system and the second ATP system is obtained according to the following formula: offset :

[0018]

[0019] Among them, T1 represents the first sending time, T2 represents the first receiving time, T3 represents the second sending time, and T4 represents the second receiving time.

[0020] According to a train wheel diameter correction method provided by the present invention, obtaining a third moment of the second wheelset based on the first moment and the time error, and obtaining a fourth moment of the second wheelset based on the second moment and the time error, includes:

[0021] The difference between the first moment and the time error is used as the third moment, and the difference between the second moment and the time error is used as the fourth moment.

[0022] According to a train wheel diameter correction method provided by the present invention, determining the wheel diameter of the second wheelset based on the third moment and the fourth moment includes:

[0023] obtaining a first distance between the first transponder and the second transponder, and obtaining, using a second sensor, first pulse information and second pulse information of the second wheel group corresponding to the third moment and the fourth moment, respectively;

[0024] A wheel diameter of the second wheel set is obtained based on the first pulse information, the second pulse information, and the first distance.

[0025] According to a train wheel diameter correction method provided by the present invention, obtaining the wheel diameter of the second wheelset based on the first pulse information, the second pulse information, and the first distance includes:

[0026] The number of rotations N of the second wheel group is obtained according to the following formula:

[0027]

[0028] Wherein, A1 is the pulse number of the second wheel group corresponding to the third moment, and A2 is the pulse number of the second wheel group corresponding to the fourth moment;

[0029] The wheel diameter value L of the second wheel group is obtained according to the following formula:

[0030]

[0031] Wherein, X represents the first distance.

[0032] The present invention also provides a wheel diameter correction device, comprising:

[0033] An acquisition module, configured to acquire a first moment and a second moment corresponding to when a first wheelset of a train passes through a first transponder and a second transponder, respectively, the first wheelset being electrically connected to a first sensor, the first sensor being configured to acquire pulse information corresponding to the first wheelset;

[0034] a first processing module, configured to obtain a third moment of the second wheel group based on the first moment and a time error, and to obtain a fourth moment of the second wheel group based on the second moment and the time error, wherein the time error is a time difference between a first ATP system corresponding to the first wheel group and a second ATP system corresponding to the second wheel group, wherein the second wheel group is electrically connected to a second sensor, and the second sensor is configured to collect pulse information corresponding to the second wheel group;

[0035] The second processing module is configured to determine a wheel diameter of the second wheel set based on the third moment and the fourth moment.

[0036] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, any one of the above-described wheel diameter correction methods is implemented.

[0037] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the wheel diameter correction method described above is implemented.

[0038] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any of the above-mentioned wheel diameter correction methods.

[0039] The wheel diameter correction method and device provided by the present invention collect the two response times when the first wheelset of the train passes the transponder and combine the time error between the ATP subsystem where the first wheelset is located and the ATP subsystem where the second wheelset is located to determine the two response times of the second wheelset after being synchronized with the response time of the first wheelset, and then determine the wheel diameter value of the second wheelset based on the two response times corresponding to the second wheelset. In this way, the wheel diameter values ​​at different positions of the train can be corrected, thereby improving the correction accuracy of the train wheel diameter values. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 1 is a flow chart of the wheel diameter correction method provided by the present invention;

[0042] Figure 2 This is one of the interactive schematic diagrams of the wheel diameter correction method provided by the present invention;

[0043] Figure 3 This is the second interactive schematic diagram of the wheel diameter correction method provided by the present invention;

[0044] Figure 4 It is a structural schematic diagram of the wheel diameter correction device provided by the present invention;

[0045] Figure 5 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0047] The following combination Figure 1 The wheel diameter correction method provided by an embodiment of the present invention includes:

[0048] Step 110: Obtain the first moment and the second moment corresponding to when the first wheelset of the train passes through the first transponder and the second transponder respectively. The first wheelset is electrically connected to the first sensor, and the first sensor is used to collect pulse information corresponding to the first wheelset.

[0049] In this step, the first wheelset of the train is any wheelset on which a speed sensor is installed. For example, the first wheelset may be a wheelset at the head end or the tail end of the train.

[0050] In this step, the first sensor may be a speed sensor, which is used to obtain speed data of the first wheel set at different times.

[0051] In this step, the first moment is the moment when the first wheel group passes the first transponder, and the second moment is the moment when the first wheel group passes the second transponder. For example, the moment may be the moment when the first wheel group passes over the top of the transponder.

[0052] In this embodiment, the first transponder and the second transponder are used to provide response signals when the train passes the locations of the two transponders. The train can determine its specific position based on the response signals. At the same time, the train's own time system records the overpass time and determines the two pulse numbers corresponding to passing the first transponder and the second transponder. The overpass time is the moment when the train's antenna that receives the transponder information is just above the transponder. At this time, the train antenna can receive the electromagnetic signal with the maximum intensity.

[0053] In this embodiment, the time when the wheelset at the front end of the train passes the first transponder is t1, and the number of pulses collected is A1. The time when the wheelset passes the second transponder is t2, and the number of pulses collected is A2. The wheel diameter value of the wheelset can be calculated based on the two collected pulse numbers and the distance between the two transponders.

[0054] exist Figure 2In the embodiment shown, when the first end wheelset of the train passes through the wheel diameter verification transponder 1, the speed sensor corresponding to the first end wheel collects the number of pulses A1 output at the current passing moment; when the first end wheelset of the train passes through the wheel diameter verification transponder 2, the corresponding speed sensor collects the number of pulses A2 output at the passing moment; the distance between the wheel diameter verification transponder 1 and the wheel diameter verification transponder 2 is X.

[0055] In some embodiments, after the head-end wheelset of the train obtains the over-the-top moment and adds the correction coefficient, the current over-the-top moment can be used as the correction moment. Then, when the head-end wheelset passes through the wheel diameter verification transponder 1 and the wheel diameter verification transponder 2 in sequence, two calibration moments can be obtained, and the corrected wheel diameter value of the head-end wheelset can be obtained based on the number of pulses output by the speed sensor corresponding to the head-end wheel at the calibration moment and the distance X between the two transponders.

[0056] In this embodiment, the correction coefficient may be the time delay information generated when the train ATP system and the transponder transmit signals, or may be a preset correction parameter, etc.

[0057] Step 120: Obtain the third moment of the second wheel group based on the first moment and the time error, and obtain the fourth moment of the second wheel group based on the second moment and the time error. The time error is the time difference between the first ATP system corresponding to the first wheel group and the second ATP system corresponding to the second wheel group. The second wheel group is electrically connected to the second sensor, and the second sensor is used to collect pulse information corresponding to the second wheel group.

[0058] In this step, the second wheelset may be another wheelset on the train with a speed sensor installed, and the first wheelset and the second wheelset are wheelsets located at the front and rear positions of the train respectively. For example, the first wheelset may be the wheelset at the front end of the train, and the second wheelset may be the wheelset at the rear end of the train.

[0059] In this step, the second sensor may be a speed sensor, which is used to obtain speed data of the second wheel set at different times.

[0060] In this step, the time error is the time difference between the first ATP system and the second ATP system, including the system time error accumulated during the long-term operation of the train.

[0061] In this step, the third moment is the moment after time synchronization with the first moment, and the fourth moment is the moment after time synchronization with the second moment; since the positions of the first wheel group and the second wheel group of the train are relatively stationary, when the first wheel group passes through two wheel diameter calibration transponders, the second wheel group also passes the same distance X. The second wheel group needs to obtain the accurate number of speed sensor pulses corresponding to the driving distance. Therefore, it is necessary to accurately obtain the third moment when the wheel diameter value of the second wheel group starts to be corrected and the fourth moment when the wheel diameter value of the second wheel group ends to be corrected. When the third moment is time synchronized with the first moment and the fourth moment is time synchronized with the second moment, the first wheel group and the second wheel group perform wheel diameter correction at the same time.

[0062] In this embodiment, the third moment is synchronized with the first moment, and the fourth moment is synchronized with the second moment, respectively, so as to eliminate the time error between the ATP system corresponding to the first wheel group and the ATP system corresponding to the second wheel group. For example, the difference between the first moment and the time error collected when the first wheel group passes through the wheel diameter verification transponder 1 can be used as a verification moment of the second wheel group (corresponding to the third moment), and the difference between the second moment and the time error collected when the first wheel group passes through the wheel diameter verification transponder 2 can be used as another verification moment of the second wheel group (corresponding to the fourth moment).

[0063] Step 130: Determine the wheel diameter of the second wheel set based on the third moment and the fourth moment.

[0064] In this embodiment, the two verification moments of the second wheel group can be obtained based on the time error and the two verification moments collected when the first wheel group passes through the two transponders respectively. The two pulse numbers obtained by the corresponding sensor of the second wheel group are obtained based on the two verification moments of the second wheel group. The number of revolutions of the second wheel group between the two verification moments can be obtained. Combined with the distance between the two transponders, the wheel diameter value of the second wheel group can be calculated.

[0065] In some embodiments, when the first wheelset is the wheelset at the front end of the train and the second wheelset is the wheelset at the rear end of the train, by calibrating the wheelsets at the front and rear ends of the train respectively, when the train changes ends, the wheelset originally at the rear end becomes the wheelset at the front end and participates in the calculation of the train's speed and distance measurement process, which is conducive to obtaining accurate train speed and train positioning and improving the safety of train operation.

[0066] According to the wheel diameter correction method provided in the embodiment of the present application, by collecting the two response times when the first wheel group of the train passes the transponder and combining the time error between the ATP subsystem where the first wheel group is located and the ATP subsystem where the second wheel group is located, the two response times of the second wheel group after being synchronized with the response time of the first wheel group are determined, and then the wheel diameter value of the second wheel group is determined based on the two response times corresponding to the second wheel group. In this way, the wheel diameter values ​​at different positions of the train can be corrected, thereby improving the correction accuracy of the train wheel diameter values.

[0067] In some embodiments, the time error is obtained by the following steps: obtaining the first sending moment, the first receiving moment, the second sending moment and the second receiving moment, wherein the first sending moment is the moment when the second ATP system sends the moment message, the first receiving moment is the moment when the first ATP system receives the moment message, the second sending moment is the moment when the first ATP system sends the timing message to the second ATP system after receiving the moment message, and the second receiving moment is the moment when the second ATP system receives the timing message; based on the first sending moment, the first receiving moment, the second sending moment and the second receiving moment, the time error is obtained.

[0068] In this embodiment, the time error is determined by the time difference between the first ATP system corresponding to the first wheel group and the second ATP system corresponding to the second wheel group.

[0069] In some embodiments, the first wheelset may be the wheelset at the head end of the train, the second wheelset may be the wheelset at the tail end of the train, the first ATP system is the ATP system corresponding to the head end wheelset, and the second ATP system is the ATP system corresponding to the tail end wheelset.

[0070] exist Figure 3 In the embodiment shown, the time error can be determined by calibrating the train; the ATP system corresponding to the rear-end wheelset of the train periodically sends a time message to the ATP system corresponding to the head-end wheelset, wherein each time message includes the local time T1 when the rear-end wheelset sends the time message, the ATP system corresponding to the head-end wheelset receives the time message and adds the local time of the ATP system corresponding to the head-end wheelset when the time message is received, recorded as T2, the ATP system corresponding to the head-end wheelset responds to the request and sends a timing message to the ATP system corresponding to the rear-end wheelset, the timing message includes the local time of the head-end wheelset when it is sent from the ATP system corresponding to the head-end wheelset, recorded as T3, and the local time of the tail-end wheelset when the timing message arrives at the ATP system corresponding to the tail-end wheelset is recorded as T4.

[0071] In this embodiment, the time delay generated by the ATP system corresponding to the first-end wheelset when receiving, responding and sending information can be determined based on the local time when the ATP system corresponding to the first-end wheelset receives and adds the time message and the local time when the first-end wheelset responds to the request and sends the timing message to the ATP system corresponding to the tail-end wheelset; the time error between the ATP system corresponding to the first wheelset and the ATP system corresponding to the second wheelset of the train can be obtained based on the local time when the ATP system corresponding to the tail-end wheelset sends the time message to the ATP system corresponding to the first wheelset and the local time when the ATP system corresponding to the tail-end wheelset receives the timing message sent by the ATP system corresponding to the first wheelset.

[0072] According to the wheel diameter correction method provided in the embodiment of the present application, the time error between the ATP system corresponding to the first wheelset of the train and the ATP system corresponding to the second wheelset of the train is obtained by calibrating the train time, which helps to achieve time synchronization of the ATP systems corresponding to the wheelsets at different positions of the train, and thus obtain a more accurate number of speed sensor pulses.

[0073] In some embodiments, obtaining the time error based on the first sending time, the first receiving time, the second sending time, and the second receiving time includes: obtaining the response time T of the first ATP system according to the following formula: res :

[0074] T res =T3-T2,

[0075] The transmission delay T between the first ATP system and the second ATP system is obtained according to the following formula delay :

[0076] T delay =(T4-T1)-T res =(T4-T1)-(T3-T2),

[0077] The time difference T between the first ATP system and the second ATP system is obtained according to the following formula offset :

[0078]

[0079] Among them, T1 represents the first sending time, T2 represents the first receiving time, T3 represents the second sending time, and T4 represents the second receiving time.

[0080] In this embodiment, after obtaining the first sending time T1, the first receiving time T2, the second sending time T3 and the second receiving time T4, the response time of the first ATP system receiving the time message, responding to the request and sending the timing message can be determined according to the first receiving time T2 and the second sending time T3. The response time is the difference between the first receiving time T2 and the first sending time T1.

[0081] In this embodiment, the transmission delay T between the first ATP system and the second ATP system can be determined based on the first sending time T1, the second receiving time T4 and the response time. delay The time error T between the first ATP system and the second ATP system is expressed according to the following formula offset :

[0082]

[0083]

[0084] From the above formula we can get:

[0085]

[0086] In this embodiment, the calibration time of the first wheel group can be synchronized with the calibration time of the second wheel group according to the time error between the first ATP system and the second ATP system. For example, the second ATP system can synchronize the calibration time of the first wheel group with the calibration time of the second wheel group according to the second receiving time T4 and the time error T offset Adjust the local time to achieve time synchronization between the first ATP system and the second ATP system. Since the time message of the second ATP system is periodically sent to the first ATP system, the time error between the first ATP system and the second ATP system can be eliminated after the time synchronization between the first ATP system and the second ATP system is achieved in each cycle.

[0087] According to the wheel diameter correction method provided in an embodiment of the present application, the time error is obtained by obtaining the time delay between the first ATP system and the second ATP system, which can be used to obtain the time error between the ATP systems corresponding to two different wheel groups on the train, thereby correcting the wheel diameter values ​​of wheel groups at different positions on the train.

[0088] In some embodiments, the third moment of the second wheel group is obtained based on the first moment and the time error, and the fourth moment of the second wheel group is obtained based on the second moment and the time error, including: taking the difference between the first moment and the time error as the third moment, and taking the difference between the second moment and the time error as the fourth moment.

[0089] In this embodiment, after obtaining the first moment and the second moment collected when the first wheel group passes through two transponders respectively, the third moment and the fourth moment of the second wheel group can be calculated respectively according to the time error between the first ATP system corresponding to the first wheel group and the second ATP system corresponding to the second wheel group. Based on the time error, the time synchronization of the first moment and the third moment can be achieved, and the time synchronization of the second moment and the fourth moment can be achieved.

[0090] In this embodiment, the third moment and the fourth moment synchronized with the first moment and the second moment can be obtained by the following formulas:

[0091] t1=t3+T offset ,

[0092] t2=t4+T offset ,

[0093] According to the wheel diameter correction method provided in the embodiment of the present application, the third moment and the fourth moment of the second wheel group are obtained by respectively calculating the difference between the first moment and the time error and the difference between the second moment and the time error, thereby eliminating the time error between the first ATP system and the second ATP system, and achieving the time synchronization of the calibration moment of the second wheel group and the calibration moment of the first wheel group, thereby improving the accuracy of the query speed sensor pulse number.

[0094] In some embodiments, the wheel diameter of the second wheel group is obtained based on the third moment and the fourth moment, including: obtaining a first distance between the first transponder and the second transponder, and using a second sensor to obtain first pulse information and second pulse information corresponding to the second wheel group at the third moment and the fourth moment respectively; based on the first pulse information, the second pulse information and the first distance, the wheel diameter of the second wheel group is obtained.

[0095] In this embodiment, the first pulse information may be the number of pulses obtained by the speed sensor on the second wheel group at the third moment, and the second pulse information may be the number of pulses obtained by the speed sensor on the second wheel group at the fourth moment.

[0096] In this embodiment, after obtaining the above-mentioned time error, the time error can be used to synchronize the first moment of the first wheel group with the third moment of the second wheel group, and the second moment of the first wheel group with the fourth moment of the second wheel group, and the third moment and the fourth moment can be used to determine the wheel diameter value of the second wheel group.

[0097] In this embodiment, the speed sensor on the second wheel group increases the number of pulses as the wheel rotates during the time period from the third moment to the fourth moment. Based on the known third moment and fourth moment, the first pulse information and the second pulse information collected by the speed sensor corresponding to the second wheel group can be obtained, and the wheel diameter value of the second wheel group can be corrected separately based on these two pulse information.

[0098] According to the wheel diameter correction method provided in the embodiment of the present application, by obtaining the number of pulses collected by the speed sensor of the second wheel group at the third moment and the fourth moment, the number of revolutions of the second wheel group between the third moment and the fourth moment can be quickly obtained, thereby improving the calibration efficiency of the wheel diameter value of the second wheel group.

[0099] In some embodiments, obtaining the wheel diameter of the second wheel set based on the first pulse information, the second pulse information, and the first distance includes: obtaining the number of rotations N of the second wheel set according to the following formula:

[0100]

[0101] Wherein, A1 is the pulse number corresponding to the second wheel group at the third moment, and A2 is the pulse number corresponding to the second wheel group at the fourth moment. The wheel diameter value L of the second wheel group is obtained according to the following formula:

[0102]

[0103] Wherein, X represents the first distance.

[0104] It should be noted that since the grating disk of the photoelectric speed sensor rotates with the train axle, it can output an electrical pulse signal proportional to the wheel speed, that is, the number of output pulses per revolution is a measurable number, for example, the number of output pulses per revolution can be 200.

[0105] In this embodiment, after determining the number of pulses collected by the speed sensor of the second wheel group at the third moment and the fourth moment and the number of pulses increased per revolution of the second wheel group, the number of revolutions of the second wheel group in the time period from the third moment to the fourth moment can be obtained based on the difference between the number of pulses corresponding to the second wheel group at the fourth moment and the number of pulses corresponding to the third moment.

[0106] In this embodiment, since the third moment and the fourth moment of the second wheel group are synchronized with the first moment and the second moment of the first wheel group respectively, the distance moved by the second wheel group in the time period from the third moment to the fourth moment is the same as the distance moved by the first wheel group in the time period from the first moment to the second moment (corresponding to the first distance). After determining the number of revolutions of the second wheel group, the wheel diameter value of the second wheel group can be calculated based on the first distance and the number of revolutions of the second wheel group.

[0107] According to the wheel diameter correction method provided in the embodiment of the present application, the wheel diameter value of the second wheel group can be obtained by obtaining the number of rotations of the second wheel group and combining it with the first distance corresponding to when the first wheel group passes through two transponders. In this way, the wheel diameter value correction processes of the first wheel group and the second wheel group can be distinguished, thereby realizing the wheel diameter value correction of wheel groups at different positions of the train.

[0108] Combine Figure 4 A wheel diameter correction device provided in an embodiment of the present invention is described. The wheel diameter correction device described below and the wheel diameter correction method described above can correspond to each other.

[0109] The present invention also provides a wheel diameter correction device, comprising:

[0110] An acquisition module, configured to acquire a first moment and a second moment corresponding to when a first wheelset of a train passes through a first transponder and a second transponder, respectively, the first wheelset being electrically connected to a first sensor, the first sensor being configured to acquire pulse information corresponding to the first wheelset;

[0111] a first processing module, configured to obtain a third moment of the second wheel group based on the first moment and a time error, and to obtain a fourth moment of the second wheel group based on the second moment and the time error, wherein the time error is a time difference between a first ATP system corresponding to the first wheel group and a second ATP system corresponding to the second wheel group, wherein the second wheel group is electrically connected to a second sensor, and the second sensor is configured to collect pulse information corresponding to the second wheel group;

[0112] The second processing module is configured to determine a wheel diameter of the second wheel set based on the third moment and the fourth moment.

[0113] According to the wheel diameter correction device provided in the embodiment of the present application, by collecting the two response times when the first wheel group of the train passes the transponder and combining the time error between the ATP subsystem where the first wheel group is located and the ATP subsystem where the second wheel group is located, the two response times of the second wheel group after being synchronized with the response time of the first wheel group are determined, and then the wheel diameter value of the second wheel group is determined based on the two response times corresponding to the second wheel group. In this way, the wheel diameter values ​​at different positions of the train can be corrected, thereby improving the correction accuracy of the train wheel diameter values.

[0114] Figure 5 An example of a physical structure diagram of an electronic device is shown below. Figure 5 As shown, the electronic device may include: a processor 510, a communication interface 520, a memory 530, and a communication bus 540, wherein the processor 510, the communication interface 520, and the memory 530 communicate with each other via the communication bus 540. The processor 510 may call the logic instructions in the memory 530 to execute the wheel diameter correction method provided by the above-mentioned methods, which includes: obtaining a first moment and a second moment corresponding to when a first wheelset of a train passes through a first transponder and a second transponder, respectively, the first wheelset being electrically connected to a first sensor, the first sensor being used to collect pulse information corresponding to the first wheelset; obtaining a third moment of the second wheelset based on the first moment and a time error, and obtaining a fourth moment of the second wheelset based on the second moment and a time error, the time error being the time difference between a first ATP system corresponding to the first wheelset and a second ATP system corresponding to the second wheelset; the second wheelset being electrically connected to a second sensor, the second sensor being used to collect pulse information corresponding to the second wheelset; and determining the wheel diameter of the second wheelset based on the third moment and the fourth moment.

[0115] In addition, the logic instructions in the above-mentioned memory 530 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0116] On the other hand, the present invention also provides a computer program product, which includes a computer program, which can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the wheel diameter correction method provided by the above methods, which includes: obtaining the first moment and the second moment corresponding to when the first wheel group of the train passes through the first transponder and the second transponder respectively, the first wheel group is electrically connected to the first sensor, and the first sensor is used to collect pulse information corresponding to the first wheel group; based on the first moment and the time error, the third moment of the second wheel group is obtained, and based on the second moment and the time error, the fourth moment of the second wheel group is obtained, the time error is the time difference between the first ATP system corresponding to the first wheel group and the second ATP system corresponding to the second wheel group, the second wheel group is electrically connected to the second sensor, and the second sensor is used to collect pulse information corresponding to the second wheel group; based on the third moment and the fourth moment, the wheel diameter of the second wheel group is determined.

[0117] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented by a processor to execute the wheel diameter correction method provided by the above-mentioned methods, the method including: obtaining the first moment and the second moment corresponding to when the first wheel group of the train passes through the first transponder and the second transponder respectively, the first wheel group is electrically connected to the first sensor, and the first sensor is used to collect pulse information corresponding to the first wheel group; according to the first moment and the time error, the third moment of the second wheel group is obtained, and according to the second moment and the time error, the fourth moment of the second wheel group is obtained, the time error is the time difference between the first ATP system corresponding to the first wheel group and the second ATP system corresponding to the second wheel group, the second wheel group is electrically connected to the second sensor, and the second sensor is used to collect pulse information corresponding to the second wheel group; based on the third moment and the fourth moment, the wheel diameter of the second wheel group is determined.

[0118] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0119] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A train wheel diameter correction method, characterized in that: include: Obtaining a first moment and a second moment corresponding to when a first wheelset of a train passes through a first transponder and a second transponder, respectively, where the first wheelset is electrically connected to a first sensor, and the first sensor is used to collect pulse information corresponding to the first wheelset; Obtaining a third moment of the second wheel group based on the first moment and the time error, and obtaining a fourth moment of the second wheel group based on the second moment and the time error, wherein the time error is a time difference between a first ATP system corresponding to the first wheel group and a second ATP system corresponding to the second wheel group, wherein the second wheel group is electrically connected to a second sensor, and the second sensor is used to collect pulse information corresponding to the second wheel group; determining a wheel diameter of the second wheel set based on the third moment and the fourth moment; The time error is obtained by the following steps: Obtain a first sending time, a first receiving time, a second sending time, and a second receiving time, wherein the first sending time is the time when the second ATP system sends a time message, the first receiving time is the time when the first ATP system receives the time message, the second sending time is the time when the first ATP system sends a timing message to the second ATP system after receiving the timing message, and the second receiving time is the time when the second ATP system receives the timing message; The time error is obtained based on the first sending time, the first receiving time, the second sending time and the second receiving time.

2. The train wheel diameter correction method according to claim 1, characterized in that: The obtaining the time error based on the first sending time, the first receiving time, the second sending time, and the second receiving time includes: The response time T of the first ATP system is obtained according to the following formula res : <h2 style=";text-align:left;direction:ltr">T<h2 style=";text-align:left;direction:ltr"> res <h2 style=";text-align:left;direction:ltr"> (T3-T2) The transmission delay T between the first ATP system and the second ATP system is obtained according to the following formula delay : T delay =(T4-T1)-T res =(T4-T1)-(T3-T2), The time difference T between the first ATP system and the second ATP system is obtained according to the following formula: offset : Among them, T1 represents the first sending time, T2 represents the first receiving time, T3 represents the second sending time, and T4 represents the second receiving time.

3. The train wheel diameter correction method according to claim 1, characterized in that: The method of obtaining a third moment of the second wheel group according to the first moment and the time error, and obtaining a fourth moment of the second wheel group according to the second moment and the time error, includes: The difference between the first moment and the time error is used as the third moment, and the difference between the second moment and the time error is used as the fourth moment.

4. The train wheel diameter correction method according to any one of claims 1 to 3, characterized in that: The determining the wheel diameter of the second wheel set based on the third moment and the fourth moment includes: obtaining a first distance between the first transponder and the second transponder, and obtaining, using a second sensor, first pulse information and second pulse information of the second wheel group corresponding to the third moment and the fourth moment, respectively; A wheel diameter of the second wheel set is obtained based on the first pulse information, the second pulse information, and the first distance.

5. The train wheel diameter correction method according to claim 4, characterized in that: The obtaining the wheel diameter of the second wheel set based on the first pulse information, the second pulse information, and the first distance includes: The number of rotations N of the second wheel group is obtained according to the following formula: Wherein, A1 is the pulse number of the second wheel group corresponding to the third moment, and A2 is the pulse number of the second wheel group corresponding to the fourth moment; The wheel diameter value L of the second wheel group is obtained according to the following formula: Wherein, X represents the first distance.

6. A train wheel diameter correction device, characterized in that: include: An acquisition module, configured to acquire a first moment and a second moment corresponding to when a first wheelset of a train passes through a first transponder and a second transponder, respectively, the first wheelset being electrically connected to a first sensor, the first sensor being configured to acquire pulse information corresponding to the first wheelset; a first processing module, configured to obtain a third moment of the second wheel group based on the first moment and a time error, and to obtain a fourth moment of the second wheel group based on the second moment and the time error, wherein the time error is a time difference between a first ATP system corresponding to the first wheel group and a second ATP system corresponding to the second wheel group, wherein the second wheel group is electrically connected to a second sensor, and the second sensor is configured to collect pulse information corresponding to the second wheel group; a second processing module, configured to determine a wheel diameter of the second wheel set based on the third moment and the fourth moment; The time error is obtained by the following steps: Obtain a first sending time, a first receiving time, a second sending time, and a second receiving time, wherein the first sending time is the time when the second ATP system sends a time message, the first receiving time is the time when the first ATP system receives the time message, the second sending time is the time when the first ATP system sends a timing message to the second ATP system after receiving the timing message, and the second receiving time is the time when the second ATP system receives the timing message; The time error is obtained based on the first sending time, the first receiving time, the second sending time and the second receiving time.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the train wheel diameter correction method as described in any one of claims 1 to 5 is implemented.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the train wheel diameter correction method according to any one of claims 1 to 5 is implemented.

9. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the train wheel diameter correction method according to any one of claims 1 to 5 is implemented.

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