Signal machine control method and device based on rail transit, electronic equipment and medium

Abstract

The invention discloses an annunciator control method and device based on rail transit, electronic equipment and a medium, and relates to the field of rail transit and the like, and the annunciator control method based on rail transit comprises the steps that the relative position of a train and an annunciator is determined based on the train position, the train size and the annunciator position, the relative position represents whether the train enters a section corresponding to the annunciator; under the condition that the relative position represents that the train head is in the inner section of the annunciator, the train tail is in the outer section of the annunciator, and the inner section and the outer section of the annunciator are determined to be occupied, an annunciator cross-pressure command is issued to an interlocking system; therefore, the interlocking system controls the signal machine to switch the passing state to the passing prohibition state based on the occupancy information of the internal and external sections of the signal machine. According to the method, the cross-voltage command issuing is combined with various condition judgment, and the reliability and safety of the cross-voltage command of the annunciator are improved.

Description

Technical Field

[0001] The present application relates to technical fields such as rail transit and signal control, and in particular to a signal control method, device, electronic equipment and medium based on rail transit. Background Art

[0002] During train operation, when it is determined that the train has entered the inner side of the signal and the logic section in the signal is occupied, the zone controller (ZC) sends a cross-pressure command to the CI (Computer Interlocking, interlocking system). Due to train test errors, train occupancy mismatch, communication delays and faulty occupation of the axle counting section on the trackside, there is a situation where the train has not entered the inner side of the signal when the cross-pressure command is issued. In this case, the interlocking system has closed the signal. When the driver sees the closed signal (red light) during high-speed operation, he will pull the emergency brake handle, causing injuries and other problems. Summary of the invention

[0003] To this end, the purpose of the implementation mode of the present application is to propose a signal control method, device, electronic device, storage medium and computer program product based on rail transit, which combines multiple conditions to judge when issuing a cross-pressure command to improve the reliability and safety of the signal cross-pressure command.

[0004] An embodiment of the present application provides a signal control method based on rail transit, the method is applied to a line controller, and the line controller can communicate with an interlocking system. The method includes: determining the relative position of the train and the signal based on the train position, the train size, and the signal position, wherein the relative position represents whether the train enters the section corresponding to the signal; the relative position represents that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that both the inner section and the outer section of the signal are occupied, issuing a signal cross-pressure command to the interlocking system, so that the interlocking system controls the signal to switch the passage state to the prohibited passage state based on the occupancy information of the inner and outer sections of the signal.

[0005] Exemplarily, the train position includes the rear position, the train size includes the train length, and the determining the relative position of the train and the signal based on the train position, the train size, and the signal position includes: determining a first section based on the rear position and the train length, wherein the starting point of the first section is the rear position, and the end point of the first section is a position obtained by extending the rear position in the train's forward direction by one train length and then subtracting a preset distance, wherein the preset distance includes the distance between the last wheel pair of the first car of the train locomotive and the train locomotive; determining the relative position of the train and the signal based on the first section and the signal position.

[0006] Exemplarily, determining whether the train enters the section corresponding to the signal based on the relative position includes: when the signal is in the first section, determining that the front of the train is in the section inside the signal and the rear of the train is in the section outside the signal.

[0007] Exemplarily, when the relative position represents that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that the inner section and the outer section of the signal are both occupied, the signal cross-pressure command is issued to the interlocking system, including: when the relative position represents that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that the inner section and the outer section of the signal are both occupied, and when it is determined that the train attribute is a CT attribute, the signal cross-pressure command is issued to the interlocking system.

[0008] Exemplarily, the method further includes: when the train attribute is degraded or the traffic state of the signal is a prohibited traffic state, stopping issuing a signal cross-pressure command to the interlocking system, wherein the train attribute degradation includes the train being degraded from a CT attribute to a non-CT attribute.

[0009] Another embodiment of the present application provides a signal control method based on rail transit, which is applied to an interlocking system, and the interlocking system can communicate with the line controller. The method includes: upon receiving a signal cross-pressure command and the occupancy information of the inner and outer sections of the signal from the line controller, controlling the signal to switch the passage state to a prohibited passage state according to the inner and outer section occupancy information of the signal, wherein the signal cross-pressure command is obtained according to the above-mentioned signal control method based on rail transit.

[0010] Exemplarily, when controlling the signal to switch the passage state to a state prohibiting passage, the method further includes: performing auxiliary verification based on trackside occupancy status information from trackside equipment, wherein the trackside occupancy status information represents the occupancy status of the inner and outer sections of the signal.

[0011] Exemplarily, controlling the signal machine to switch to a signal prohibiting passage based on the occupancy information of the inner and outer sections of the signal machine includes: when the first logical section in the inner direction and the first logical section in the outer direction starting from the signal machine are both occupied by CT, controlling the signal machine to switch to a signal prohibiting passage.

[0012] Exemplarily, when the first logical section in the outward direction is not occupied by a CT, the signal is controlled to fail over so that the signal is in a signal state of prohibiting passage for a long time.

[0013] Another embodiment of the present application provides a signal control device, the device comprising: a determination module, used to determine the relative position of the train and the signal based on the train position, the train size, and the signal position, wherein the relative position represents whether the train has entered the section corresponding to the signal; a sending module, used to represent that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal according to the relative position, and when it is determined that both the inner section and the outer section of the signal are occupied, send a signal cross-pressure command to the interlocking system, so that the interlocking system controls the signal to switch the passage state to the prohibited passage state based on the occupancy information of the inner and outer sections of the signal.

[0014] Another embodiment of the present application provides a signal control device, which includes: a control module, which is used to control the signal to switch the passage state to a prohibited passage state according to the occupancy information of the inner and outer sections of the signal when receiving the signal cross-pressure command and the occupancy status of the inner and outer sections of the signal from the line controller, wherein the signal cross-pressure command is obtained according to the above-mentioned signal control method based on rail transit.

[0015] Another embodiment of the present application provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method of any of the above embodiments when executing the computer program.

[0016] Another embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the method of any of the above embodiments are implemented.

[0017] Another embodiment of the present application provides a computer program product, which includes instructions. When the instructions are executed by a processor of a computer device, the computer device is enabled to perform the steps of the method of any of the above embodiments.

[0018] In the above implementation, the relative position of the train and the signal is determined based on the train position, train size, and signal position, wherein the relative position indicates whether the train has entered the section corresponding to the signal; when the relative position indicates that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that both the inner section and the outer section of the signal are occupied, a signal cross-pressure command is issued to the interlocking system, so that the interlocking system controls the signal to switch the passage state to a prohibited passage state based on the occupation information of the inner and outer sections of the signal. This method issues a cross-pressure command in combination with multiple conditions to improve the reliability and safety of the signal cross-pressure command. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A flow chart of a signal control method based on rail transit provided in an embodiment of the present application;

[0020] Figure 2 A flowchart for determining the relative position of a train and a signal provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of train positions provided for implementation of the present application;

[0022] Figure 4 The processing flow of the train cross-pressure command provided in the implementation mode of this application;

[0023] Figure 5 A schematic diagram of a signal control device based on rail transit provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of a rail transit signal control device provided by another embodiment of the present application;

[0025] Figure 7 A block diagram of an electronic device provided for an embodiment of the present application. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0027] During train operation, when it is determined that the train has entered the inner side of the signal and the logic section in the signal is occupied, the zone controller (ZC) sends a cross-pressure command to the CI (Computer Interlocking, interlocking system). Due to train test errors, train occupancy mismatch, communication delays and faulty occupation of the axle counting section on the trackside, there is a situation where the train has not entered the inner side of the signal when the cross-pressure command is issued. In this case, the interlocking system has closed the signal. When the driver sees the closed signal (red light) during high-speed operation, he will pull the emergency brake handle, causing injuries and other problems.

[0028] Based on this, the present application proposes a signal control method based on rail transit. Only when the test errors of the train, the mismatch of train occupancy, the communication delay and the fault occupancy of the axle counting section on the trackside are solved, the LC line controller LC system will issue a signal cross-pressure command to the train to ensure the reliability and safety of the command, while not giving the driver the illusion of danger, thereby enabling the driver to quickly and accurately detect and avoid danger, and minimize the harm of accidents.

[0029] Figure 1 It is a flow chart of a signal control method based on rail transit according to an embodiment of the present application.

[0030] As an example, Figure 1 As shown, the signal control method based on rail transit includes:

[0031] S101, determining the relative position of the train and the signal based on the train position, train size, and signal position, wherein the relative position indicates whether the train has entered the section corresponding to the signal.

[0032] S102, when the relative positions represent that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that both the inner section and the outer section of the signal are occupied, a signal cross-pressure command is issued to the interlocking system, so that the interlocking system controls the signal to switch the passage state to a prohibited passage state based on the occupancy information of the inner and outer sections of the signal.

[0033] Exemplarily, the above-mentioned signal control method based on rail transit is applied to the line controller, and the line controller can communicate with the interlocking system. First, the line controller obtains the train position, train size and signal position, and determines the relative position of the train and the signal based on the train position, train size and signal position. The relative position represents that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal. Only when it is determined that both the inner section and the outer section of the signal are occupied, the line controller sends the signal cross-pressure command to the interlocking system. It can be understood that passing the signal means entering the inner section of the signal, and the signal is a signal light. The occupation of the inner and outer sections of the signal can be detected by the trackside device. The interlocking system controls the signal to switch the passage state to a prohibited passage state based on the occupation information of the inner and outer sections of the signal. Switch the passage state to a prohibited passage state, for example, adjust the signal to a red light.

[0034] For example, when any one of the following conditions is not met: the front of the train is in the inner section of the signal, the rear of the train is in the outer section of the signal, or both the inner and outer sections of the signal are occupied, it is considered that the signal cross-pressure is not met and no cross-pressure command is issued.

[0035] The rail transit-based signal control method of the present application combines multiple conditions for judgment when issuing a cross-pressure command, thereby improving the reliability and safety of the signal cross-pressure command.

[0036] The train is positioned by pressing over two transponders (at both ends of the train). Due to communication delays, deviations in the train wheel diameter value, etc., the calculated position of the train is biased. The actual train position may be in front of or behind the position where the train is positioned. The trackside axle counting system determines whether the train is occupied by judging the train wheels. However, there is a moving distance between the first team of wheels of the train and the front of the train. At this time, the front of the train has actually entered, and the trackside axle counting system is judged to have not checked the occupation. Due to the above two factors, the line controller LC system receives the train position. Due to communication delays and system response time, the received train position is the train position before the current time. Therefore, it is necessary to perform safety redundancy processing on the train position and calculate the possible distance the train may run within this time due to communication delays and system response. Then the possible running distance is added to the received train position. At this time, the calculated train position is the safe position of the train, that is, the position that the train cannot break through. It can be understood that the position calculated by the train is actually the position after compensating for communication delays and system response time. This position is greater than the actual train position, that is, the train safety position. Therefore, there is a situation where the train's safe locomotive position enters the inner side of the signal, but the train has not actually entered the inner section of the signal. At this time, when the cross-pressure command is issued and the signal (red light) is interlocked and closed, if the main line on the line is lit or the parking lot or vehicle depot is lit, the driver sees that the light ahead is red, he will immediately pull the emergency brake handle to force the train to stop, preventing the train from running into the red light ahead and causing further danger and damage.

[0037] Based on the above problems, the present application proposes a method for determining the relative position of a train and a signal based on the position of the rear of a train.

[0038] As an example, Figure 2 As shown, the train position includes the rear position, and the train size includes the train length. Based on the train position, train size, and signal position, the relative position of the train and the signal is determined, including:

[0039] S201, determining the first section based on the rear position of the train and the length of the train, wherein the starting point of the first section is the rear position of the train, and the end point of the first section is the position obtained by extending the rear position of the train in the forward direction of the train by one train length and then subtracting a preset distance, and the preset distance includes the distance between the last wheel pair of the first car of the front of the train and the front of the train.

[0040] S202: Determine the relative position of the train and the signal based on the first section and the position of the signal.

[0041] Exemplarily, the preset distance includes the distance between the last wheel pair of the first car at the front of the train and the front of the train, which may be 20m. For example, when the train completes entering 20m inside the signal, that is, the distance of one car of the train, and the signal is occupied. Only when the entry is completed in this way, the line controller LC system will issue a signal cross-pressure command to the train to ensure the reliability and safety of the command, while not giving the driver an illusion that danger will occur. And the way this application calculates when the train has completely entered the signal 20m is not to determine whether it is inside the signal by subtracting 20m from the front of the train, but to calculate based on the safe rear of the train.

[0042] For example, the first section is determined according to the rear position and the train length. The first section starts from the rear position of the train and extends in the direction of the train forward by one train length minus a preset distance. Figure 3 The train position diagram shown in the figure shows that the rear of the train is point A, and the train runs from left to right. Starting from point A, the current length of the train is queried forward and then 20m is subtracted to get point B. The first section is the area between AB. The relative position of the train and the signal is determined based on the first section and the signal position. Among them, the signal position is Figure 3 Point C in the figure can be obtained by installing a position sensor on the signal.

[0043] For example, the preset distance is 20m, and the sources are as follows:

[0044] 1) For domestic trains currently in operation, the last wheelset of the first carriage is generally 20 meters away from the front of the train, and the wheelsets of the first carriage of the entire train are all inside the signal to ensure that the train enters completely.

[0045] 2) According to the maximum distance measurement error of train positioning in urban rail transit: the maximum measurement error of train position during section operation is ≤10m, that is, the train may be 10m ahead of the current position, or 10m behind the current position, so the most likely position error of the train is 20m.

[0046] As an example, determining whether a train enters a section corresponding to a signal based on relative position includes: when the signal is in the first section, determining that the front of the train is in the section inside the signal and the rear of the train is in the section outside the signal.

[0047] For example, when the signal is located in the first section, it is determined that the front of the train is in the section inside the signal and the rear of the train is in the section outside the signal. Figure 3 As shown, when the signal position point C is between AB, it is determined that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal.

[0048] This application uses the rear position to calculate that the train has completely entered the signal 20m away, and when the train has completely entered the inner side of the signal, and the inner section is occupied, the LC system determines that the train has crossed the signal, and sends the state of the crossing signal to the interlocking system. Only when the train has completed the entry, the LC system will issue the signal crossing command to the train, ensuring the reliability and safety of the command, and at the same time not giving the driver an illusion that it is dangerous.

[0049] As an example, when the relative position represents that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that the inner section and the outer section of the signal are both occupied, a signal cross-pressure command is issued to the interlocking system, including: when the relative position represents that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that the inner section and the outer section of the signal are both occupied, and when it is determined that the train attribute is a CT attribute, a signal cross-pressure command is issued to the interlocking system.

[0050] Exemplarily, when issuing a cross-pressure command, in addition to satisfying the above-mentioned relative position representation that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that both the inner section and the outer section of the signal are occupied, it is also necessary to satisfy that the train attribute is CT attribute. The CT attribute train indicates that it can achieve CBCT (Communication Based Train Control) level train, that is, a continuous train automatic control system constructed by active train positioning technology that does not rely on trackside train occupancy detection equipment, continuous and unified two-way data communication technology, and on-board and ground processors that can perform safety functions.

[0051] As an example, the signal control method based on rail transit also includes: when the train attribute is degraded or the traffic status of the signal is a prohibited traffic status, stopping sending the signal cross-pressure command to the interlocking system, wherein the train attribute degradation includes the train being reduced from a CT attribute to a non-CT attribute.

[0052] Exemplarily, the line controller LC system issues a cross-pressure command when it determines that the CT train has completely entered the signal. Except when the above judgment conditions are not met, the LC system will not issue a cross-pressure command in the following cases. For example, when the traffic state of the signal is a prohibited traffic state, stop issuing the signal cross-pressure command to the interlocking system. The prohibited communication state can be a red light state. It can be understood that the cross-pressure command is issued to make the signal turn red. If it is already a red light, the cross-pressure command will not be issued. Or when the train is cross-pressing, due to a fault, the train is downgraded from the CT level to the non-CT level. At this time, the cross-pressure command will not be issued.

[0053] The present application also proposes a signal control method based on rail transit.

[0054] As an example, a signal control method based on rail transit includes: upon receiving a signal cross-pressure command and the occupancy information of the inner and outer sections of the signal from a line controller, controlling the signal to switch the passage state to a prohibited passage state according to the inner and outer section occupancy information of the signal, wherein the signal cross-pressure command is obtained according to the signal control method based on rail transit of the first embodiment.

[0055] Exemplarily, the above-mentioned signal control method based on rail transit is applied to an interlocking system. The interlocking system can communicate with the line controller. The line controller LC sends the calculated signal cross-pressure command and the logical section occupancy where the train body is located to the interlocking system. The interlocking system receives the signal cross-pressure command and the logical section occupancy sent by the LC system, and combines the collected trackside occupancy status (for example, through the trackside axle counter) to make a comprehensive judgment that the train has entered the inner side of the signal. Only then can the interlocking close the signal.

[0056] As an example, when the control signal switches the passage state to a state where passage is prohibited, the method further includes: performing auxiliary verification based on trackside occupancy status information from trackside equipment, wherein the trackside occupancy status information represents the occupancy status of the inner and outer sections of the signal.

[0057] Exemplarily, the interlocking system performs auxiliary verification by receiving the signal cross-pressure command and logical section occupancy status sent by the LC system, combined with the trackside occupancy status information collected by the trackside axle counter. For example, when the trackside occupancy status information from the trackside equipment indicates that the train trackside is in an occupied state, it is determined that the train has entered the inside of the signal, and the interlocking closes the signal.

[0058] As an example, the signal is controlled to switch to a signal prohibiting passage based on the occupancy information of the inner and outer sections of the signal, including: when the first logical section in the inner direction and the first logical section in the outer direction starting from the signal are both occupied by CT, the signal is controlled to switch to a signal prohibiting passage.

[0059] For example, the LC system will also calculate the occupancy of the logical section where the train is located based on the train's safe position, and calculate the occupancy of the logical section from the rear to the front of the train. If the train is a CT train, it is considered that the logical sections occupied by the car body are all occupied by CT. If the train is not a CT train, it is considered that the logical sections occupied by the car body are all occupied by NCT ​​(non-CT occupied), and the logical sections not occupied by the train are considered to be idle. At the same time, three types of logical section occupancy (CT occupied, NCT occupied, and not occupied) are sent to the interlocking system. The interlocking system obtains the occupancy of the logical section, and the red light will not change if the logical section is occupied by NCT ​​or not occupied.

[0060] For example, after the interlocking receives the occupancy status of the logical section sent by the LC system, when it is determined that the first logical section inside the signal (the first logical section in the inner direction starting from the signal) is occupied by CT and the first logical section outside the signal (the first logical section in the outer direction starting from the signal) is also occupied by CT, when both conditions are met, the interlocking believes that the train has crossed the signal and can be closed normally (turned red to prohibit signal), and controls the signal to switch to a signal prohibiting passage.

[0061] As an example, when the first logical section in the outward direction is not occupied by the CT, the signal is controlled to fail over so that the signal is in a signal state of prohibiting passage for a long time.

[0062] For example, when the first logical section inside the signal is occupied by CT, and this condition is not met, the interlocking considers that the train has not entered the area inside the signal and does not process it. When the first logical section outside the signal is occupied by CT, and this condition is not met, the interlocking considers that the train has already entered the area inside the signal, which is an abnormal situation. At this time, the interlocking will shut down the signal due to fault, so that the signal is in a signal state of prohibiting passage for a long time. The route starting from the signal will not be unlocked, and manual access must be made to manually unlock the route or reopen the signal. It should be noted that the fault closure also turns on the red light, but at this time the signal is locked at the same time, and it will not be unlocked when the train behind arrives, which is equivalent to the signal always turning on the red light, unless the route is manually unlocked or the signal is reopened to ensure safety.

[0063] Figure 4 This is a flow chart of processing a train cross-pressure command according to an embodiment of the present application.

[0064] like Figure 4 As shown, the interlocking system obtains the occupancy of the axle counting section through the trackside axle counter, and the LC system obtains the train position and running direction. The LC system makes a signal judgment of the train according to the train position and running direction. For example, the LC system determines the relative position of the train and the signal according to the train position, train size, and signal position. The relative position represents that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal. When it is determined that both the inner section and the outer section of the signal are occupied, the signal cross-pressure command is sent to the interlocking system. When the LC system sends the cross-pressure command and the occupancy of the CT train logic section to the interlocking system, the interlocking system determines that the train has entered the inner side of the signal in combination with the occupancy of the axle counting section, and the interlocking system closes the signal.

[0065] The application also proposes a signal control device.

[0066] As an example, Figure 5As shown, the signal control device 500 includes: a determination module 501, which is used to determine the relative position of the train and the signal based on the train position, the train size, and the signal position, wherein the relative position represents whether the train has entered the section corresponding to the signal; a sending module 502, which is used to represent that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal in the relative position, and when it is determined that both the inner section and the outer section of the signal are occupied, send a signal cross-pressure command to the interlocking system, so that the interlocking system controls the signal to switch the passage state to the prohibited passage state based on the occupancy information of the inner and outer sections of the signal.

[0067] The application also proposes a signal control device.

[0068] As an example, Figure 6 As shown, the signal control device 600 includes:

[0069] The control module 601 is used to control the signal to switch the passage state to a prohibited passage state according to the occupancy information of the inner and outer sections of the signal upon receiving the signal cross-pressure command from the line controller and the occupancy status of the inner and outer sections of the signal, wherein the signal cross-pressure command is obtained according to the signal control method based on rail transit in the first embodiment.

[0070] The application also proposes a computer-readable storage medium.

[0071] In this embodiment, a computer program is stored on a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned signal control method based on rail transit are implemented.

[0072] Figure 7 A block diagram of an electronic device provided for an embodiment of the present application.

[0073] An embodiment of the present application provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the above-mentioned signal control method based on rail transit when executing the computer program.

[0074] like Figure 7 As shown, for ease of understanding, the embodiment of the present application shows a specific electronic device.

[0075] Electronic devices are intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframes, and other suitable computers. Electronic devices may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0076] like Figure 7 As shown, the device includes a computing unit 701, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 702 or a computer program loaded from a storage unit 708 into a random access memory (RAM) 703. In the RAM 703, various programs and data required for the operation of the electronic device can also be stored. The computing unit 701, the ROM 702, and the RAM 703 are connected to each other via a bus 704. An input / output (I / O) interface 705 is also connected to the bus 704.

[0077] Multiple components in the electronic device are connected to the I / O interface 705, including: an input unit 706, such as a keyboard, a mouse, etc.; an output unit 707, such as various types of displays, speakers, etc.; a storage unit 708, such as a disk, an optical disk, etc.; and a communication unit 709, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 709 allows the electronic device to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0078] The computing unit 701 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 701 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The computing unit 701 executes the various methods described above, such as a signal control method based on rail transit. For example, in some embodiments, a signal control method based on rail transit may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 708. In some embodiments, part or all of the computer program may be loaded and / or installed on an electronic device via ROM 702 and / or a communication unit 709. When the computer program is loaded into RAM 703 and executed by the computing unit 701, the signal control method based on rail transit described above may be executed. Alternatively, in other embodiments, the computing unit 701 may be configured to execute a signal control method based on rail transit in any other appropriate manner (e.g., by means of firmware).

[0079] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this application, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or otherwise processing in a suitable manner if necessary, and then stored in a computer memory.

[0080] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0081] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0082] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0083] In addition, the terms "first", "second", etc. used in the embodiments of the present application are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present application can explicitly or implicitly indicate that at least one of the features is included in the embodiment. In the description of the present application, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0084] In this application, unless otherwise clearly specified or limited in the embodiments, the terms "installed", "connected", "connected" and "fixed" etc. appearing in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific implementation situation.

[0085] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0086] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A signal control method based on rail transit, characterized in that: The method is applied to a line controller, the line controller being capable of communicating with an interlocking system, and the method comprises: Determine the relative position of the train and the signal based on the train position, train size, and signal position, wherein the relative position indicates whether the train has entered the section corresponding to the signal; When the relative position represents that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that both the inner section and the outer section of the signal are occupied, a signal cross-pressure command is issued to the interlocking system, so that the interlocking system controls the signal to switch the passage state to a prohibited passage state based on the occupancy information of the inner and outer sections of the signal.

2. The signal control method based on rail transit according to claim 1, characterized in that: The train position includes the rear position of the train, the train size includes the train length, and determining the relative position of the train and the signal based on the train position, the train size, and the signal position includes: Determine a first section based on the rear position and the train length, wherein the starting point of the first section is the rear position, and the end point of the first section is a position obtained by extending the rear position by one train length in the forward direction of the train and then subtracting a preset distance, wherein the preset distance includes the distance between the last wheel pair of the first carriage at the front of the train and the front of the train; The relative position of the train and the signal is determined based on the first section and the signal position.

3. The signal control method based on rail transit according to claim 2 is characterized in that: Determining whether the train enters the section corresponding to the signal based on the relative position includes: When the signal is located in the first section, it is determined that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal.

4. The signal control method based on rail transit according to claim 1, characterized in that: The method of sending a signal cross pressure command to the interlocking system when the relative position indicates that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal and when it is determined that both the inner section and the outer section of the signal are occupied comprises: When the relative position represents that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal, and when it is determined that both the inner section and the outer section of the signal are occupied, and the train attribute is determined to be a CT attribute, a signal cross-pressure command is issued to the interlocking system.

5. The signal control method based on rail transit according to claim 4 is characterized in that: The method further comprises: When the train attribute is degraded or the traffic state of the signal is a traffic-prohibited state, the signal cross-pressure command is stopped from being issued to the interlocking system, wherein the train attribute degradation includes the train attribute being degraded from CT attribute to non-CT attribute.

6. A signal control method based on rail transit, characterized in that: The method is applied to an interlocking system, the interlocking system being capable of communicating with the line controller, and the method comprises: Upon receiving a signal cross-pressure command and the signal inner and outer section occupancy information from the line controller, the signal is controlled to switch the passage state to a prohibited passage state according to the signal inner and outer section occupancy information, wherein the signal cross-pressure command is obtained according to the method described in any one of claims 1 to 5.

7. The signal control method based on rail transit according to claim 6, characterized in that: When controlling the signal machine to switch the traffic state to a state prohibiting traffic, the method further includes: Auxiliary verification is performed based on trackside occupancy status information from trackside equipment, wherein the trackside occupancy status information represents the occupancy status of the inner and outer sections of the signal.

8. The signal control method based on rail transit according to claim 6, characterized in that: The controlling of the signal machine to switch to a signal prohibiting passage according to the occupancy information of the inner and outer sections of the signal machine comprises: When the first logical section in the inner direction and the first logical section in the outer direction starting from the signal are both occupied by CT, the signal is controlled to switch to a signal prohibiting passage.

9. The signal control method based on rail transit according to claim 8, characterized in that: When the first logic section in the outward direction is not occupied by the CT, the signal is controlled to fail over so that the signal is in a signal state of prohibiting passage for a long time.

10. A signal control device, characterized in that: The device comprises: A determination module, used to determine the relative position of the train and the signal based on the train position, train size, and signal position, wherein the relative position represents whether the train enters the section corresponding to the signal; The sending module is used to represent that the front of the train is in the inner section of the signal and the rear of the train is in the outer section of the signal in the relative position, and when it is determined that both the inner section and the outer section of the signal are occupied, send a signal cross-pressure command to the interlocking system, so that the interlocking system controls the signal to switch the passage state to the prohibited passage state based on the occupancy information of the inner and outer sections of the signal.

11. A signal control device, characterized in that: The device comprises: A control module, for, upon receiving a signal cross-pressure command from the line controller and the occupancy status of the inner and outer sections of the signal, controlling the signal to switch the passage state to a prohibited passage state according to the occupancy information of the inner and outer sections of the signal, wherein the signal cross-pressure command is obtained according to the method described in any one of claims 1 to 5.

12. An electronic device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the steps of the method described in any one of claims 1 to 9 when executing the computer program.

13. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed by a processor, the steps of the method described in any one of claims 1 to 9 are implemented.

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