Barrier gate control system and barrier gate control method for tramcar

Abstract

The invention provides a barrier gate control system and method for a tramcar, the barrier gate control system comprises a vehicle-mounted host in the tramcar and a barrier gate device arranged at an intersection, and the vehicle-mounted host comprises a main control module and a beacon module. The barrier gate device comprises a control unit, a barrier gate executing mechanism and trackside beacons arranged beside a track around the barrier gate device in advance. The main control module is used for sending a barrier gate control instruction to the beacon module under the condition of detecting that the tramcar approaches or leaves an intersection; the beacon module is used for sending the barrier gate control instruction to a trackside beacon; the trackside beacon is used for receiving the barrier gate control instruction sent by the beacon module and sending the barrier gate control instruction to the control unit; the beacon module communicates with the trackside beacon in a radio frequency or near field mode; and the control unit is used for controlling the barrier gate executing mechanism to open or close the barrier gate according to the barrier gate control instruction. By adopting the technical scheme of the invention, the barrier gate can be controlled more accurately.

Description

Technical Field

[0001] The present invention relates to the field of rail transportation technology, and in particular to a barrier gate control system and a barrier gate control method for a tram. Background Art

[0002] Trams are lightweight, electric urban rail transit systems that run on rails. They typically operate on streets and occupy road space, potentially impacting pedestrian safety. To ensure pedestrian safety, barriers are typically installed at intersections where trams pass. When a tram passes, the barriers close, blocking pedestrians and other vehicles. Once the tram has passed, the barriers open again, allowing pedestrians and other vehicles to pass. Therefore, controlling the barriers is crucial.

[0003] In the related technologies, when controlling the barrier gate, some technologies use the wireless communication module on the barrier gate to conduct wireless network communication with the wireless communication module on the tram, and use the wireless network communication results to know whether the tram is heading towards the barrier gate or leaving the barrier gate, and automatically control the barrier gate to close when the tram is heading towards the barrier gate and automatically control the barrier gate to open when the tram is leaving the barrier gate.

[0004] However, the above technology relies on the communication results of the wireless network to control the gate, and the wireless network has the problem of insufficient stability, which leads to inaccurate control of the gate. Summary of the Invention

[0005] The present invention provides a barrier gate control system and a barrier gate control method for trams, which are used to solve the problem in the prior art that barrier gate control relies on communication results of wireless networks, but the wireless network is not stable enough, which leads to the defect of inaccurate control of the barrier gate. The purpose of accurately controlling the barrier gate device is achieved by more stable radio frequency communication or near-field communication between the beacon module on the tram and the beacon in the barrier gate device.

[0006] The present invention provides a barrier gate control system for a tram, comprising an onboard host in the tram and a barrier gate device arranged at an intersection, wherein the onboard host includes a main control module and a beacon module, and the barrier gate device includes a control unit, a barrier gate actuator, and a trackside beacon, wherein the trackside beacon is pre-arranged beside the track around the barrier gate device; The main control module is used to send gate control instructions to the beacon module when it detects that a tram is approaching or leaving the intersection; The beacon module is used to send gate control instructions to the trackside beacon; The trackside beacon is used for receiving the barrier control instruction sent by the beacon module and sending the barrier control instruction to the control unit; the beacon module and the trackside beacon communicate with each other in a radio frequency communication mode or a near field communication mode; The control unit is used for controlling the barrier actuator to open or close the barrier according to the barrier control instruction.

[0007] According to the barrier control system for the tramcar, the vehicle-mounted host further comprises a speed module, which is used for collecting the running speed of the tramcar. The main control module is further used for determining the running displacement of the tramcar according to the running speed and the running time of the tramcar, determining the first position corresponding to the tramcar at present according to the running displacement, and detecting whether the tramcar approaches or departs from the intersection according to the first position of the tramcar and the position corresponding to the barrier device.

[0008] According to the barrier control system for the tramcar, the vehicle-mounted host further comprises a positioning module, which is used for collecting the second position corresponding to the tramcar at present. The main control module is specifically used for verifying the first position according to the second position, and detecting whether the tramcar approaches or departs from the intersection according to the first position of the tramcar and the position corresponding to the barrier device when the verification is successful.

[0009] According to the barrier control system for the tramcar, the vehicle-mounted host comprises a vehicle head vehicle-mounted host and a vehicle tail vehicle-mounted host which are electrically connected to each other, the vehicle head vehicle-mounted host comprises a first main control module and a first beacon module, the vehicle tail vehicle-mounted host comprises a second main control module and a second beacon module, the main control module comprises the first main control module and the second main control module, and the beacon module comprises the first beacon module and the second beacon module. The first main control module is used for sending a barrier closing control instruction to the first beacon module when it is detected that the tramcar approaches the intersection; the first beacon module is used for sending the barrier closing control instruction to the trackside beacon; and the barrier closing control instruction is used for instructing the barrier device to control the barrier actuator to close the barrier. The first main control module is used for sending a barrier opening control instruction to the second beacon module when it is detected that the tramcar departs from the intersection; the second beacon module is used for sending the barrier opening control instruction to the trackside beacon; and the barrier opening control instruction is used for instructing the barrier device to control the barrier actuator to open the barrier. The second main control module is used for upgrading to the first main control module when the tramcar travels in the direction of the vehicle tail vehicle-mounted host.

[0010] According to a gate control system for a tram provided by the present invention, the beacon module is specifically used to continuously send gate control instructions to the trackside beacon; The above-mentioned trackside beacon is specifically used to receive the gate control instruction sent by the beacon module, and when receiving the gate control instruction at least once, send the gate control instruction to the control unit.

[0011] The present invention further provides a gate control method, which is applied to any of the above gate control systems for trams, and the method comprises: When the main control module detects a tram approaching or leaving the intersection, it sends a gate control command to the beacon module; The beacon module sends the gate control instructions to the trackside beacon; The trackside beacon receives the gate control command sent by the beacon module and sends the gate control command to the control unit; the beacon module and the trackside beacon communicate with each other using radio frequency communication or near field communication; The control unit controls the gate actuator to open or close the gate according to the gate control instruction.

[0012] According to a gate control method provided by the present invention, the vehicle-mounted host further includes a speed module, which is used to collect the running speed of the tram. The method further includes: The main control module determines the running displacement of the tram based on the running speed and the running time of the tram; The main control module determines the current first position corresponding to the tram according to the running displacement, and detects whether the tram is approaching or leaving the intersection according to the first position of the tram and the position corresponding to the gate device.

[0013] According to a barrier gate control method provided by the present invention, the vehicle-mounted host further includes a positioning module, which is used to collect the second position corresponding to the current tram. The method detects whether the tram is approaching or leaving the intersection based on the first position of the tram and the position corresponding to the barrier gate device, including: verifying the first position according to the second position; If the error between the first position and the second position is within the preset error range, then it is determined that the first position verification is successful; According to the first position of the tram and the corresponding position of the barrier device, it is detected whether the tram approaches or leaves the intersection.

[0014] According to a barrier gate control method provided by the present invention, the above-mentioned vehicle-mounted host includes a front vehicle-mounted host and a rear vehicle-mounted host electrically connected to each other, the front vehicle-mounted host includes a first main control module and a first beacon module, the rear vehicle-mounted host includes a second main control module and a second beacon module, the main control module includes a first main control module and a second main control module, and the beacon module includes a first beacon module and the above-mentioned second beacon module. When the above-mentioned main control module detects that a tram is approaching or leaving the intersection, it sends a barrier gate control instruction to the beacon module, including: When the first main control module detects that a tram is approaching the intersection, it sends a gate closing control instruction to the first beacon module; the first beacon module sends the gate closing control instruction to the trackside beacon; the gate closing control instruction is used to instruct the gate device to control the gate execution structure to close the gate; When the first main control module detects that the tram has left the intersection, it sends a gate opening control instruction to the second beacon module; the second beacon module sends the gate opening control instruction to the trackside beacon; the gate opening control instruction is used to instruct the gate device to control the gate execution structure to open the gate; The second main control module is upgraded to the first main control module when the tram is traveling towards the rear onboard host.

[0015] According to a gate control method provided by the present invention, the beacon module sends a gate control instruction to a trackside beacon, including: The beacon module continuously sends gate control instructions to the trackside beacons; The above-mentioned trackside beacon receives the gate control instruction sent by the beacon module and sends the gate control instruction to the control unit, including: The trackside beacon receives the gate control instruction sent by the beacon module, and sends the gate control instruction to the control unit when receiving the gate control instruction at least once.

[0016] The present invention provides a barrier gate control system and a barrier gate control method for a tram. The barrier gate control system includes an on-board host in the tram and a barrier gate device arranged at an intersection. The on-board host includes a main control module and a beacon module. The barrier gate device includes a control unit, a barrier gate execution structure and a trackside beacon. The trackside beacon is pre-set next to the track around the track device. During the barrier gate control process, the main control module is used to send a barrier gate control instruction to the beacon module when detecting that the tram approaches or leaves the intersection. The beacon module is used to send the barrier gate control instruction to the trackside beacon. The trackside beacon is used to receive the barrier gate control instruction sent by the beacon module and send the barrier gate control instruction to the control unit. The control unit is used to control the barrier gate execution structure to open or close the barrier gate according to the barrier gate control instruction, wherein the beacon module and the trackside beacon communicate with each other through radio frequency communication or near field communication. Since the barrier control system can perform radio frequency communication or near-field communication through the beacon module in the vehicle-mounted host and the trackside beacon in the barrier device to control the barrier device according to the radio frequency or near-field communication results, without relying on wireless network communication results to control the barrier device, the beacon communication process is more stable and reliable, thereby ensuring that the barrier device can stably and accurately obtain the barrier control instructions, thereby achieving accurate control of the barrier device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a structural schematic diagram of a gate control system for trams provided by the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a single vehicle-mounted host provided by the present invention.

[0020] Figure 3 It is a structural schematic diagram of the barrier device provided by the present invention.

[0021] Figure 4 It is a structural schematic diagram of the tram provided by the present invention.

[0022] Figure 5 It is a schematic diagram of the gate closing control process of the tram approaching gate device provided by the present invention.

[0023] Figure 6 It is a schematic diagram of the gate closing control process of the tram leaving the gate device provided by the present invention.

[0024] Figure 7 It is a flow chart of the gate control method for trams provided by the present invention. DETAILED DESCRIPTION

[0025] 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.

[0026] Barrier gates are specialized entrance and exit management devices used to restrict motor vehicle traffic and pedestrian access on roads. They are widely used in locations such as highway toll booths, parking system vehicle access management, and rail transit intersections. Barrier gates are independent control systems that independently control the rise and fall of the gates via wireless remote control, hardwired connections, or other communication methods. Trams are lightweight, electrically powered urban rail transit vehicles that travel on tracks, typically consisting of no more than five carriages. Trams are electrically powered and emit no exhaust, making them a pollution-free and environmentally friendly mode of transportation. However, because they operate on streets and occupy road space, safety is particularly important at intersections with other vehicles and pedestrians. Therefore, to ensure safety, some applications utilize barrier gates at certain intersections. When a tram passes, the barrier gates close, blocking pedestrians or other vehicles. Once the tram has passed, the barrier gates open, allowing pedestrians or other vehicles to pass.

[0027] When controlling the barrier gate, some technologies use a wireless communication module on the barrier gate to communicate with a wireless communication module on the tram through a wireless network, and automatically control the barrier gate to close based on the wireless network communication results, and automatically control the barrier gate to open when the tram leaves the barrier gate. However, this technology relies on the communication results of the wireless network to control the barrier gate, and the wireless network has the problem of insufficient stability, which will lead to inaccurate control of the barrier gate. There are also some technologies that use manual guards near the barrier gate and close or open the barrier gate according to the driving conditions of the tram. However, this technology has the problem of wasting manpower. Based on this, the embodiment of the present invention provides a barrier gate control system and a barrier gate control method for trams, which can solve this technical problem.

[0028] First, a gate control system for trams will be described.

[0029] Figure 1 This is a schematic diagram of the structure of the gate control system for trams provided by the present invention, see Figure 1As shown, the barrier control system for trams includes an on-board host in the tram and a barrier device arranged at an intersection, the on-board host includes a main control module and a beacon module, the barrier device includes a control unit, a barrier actuator and a trackside beacon, and the trackside beacon is pre-set next to the track around the barrier device; the above-mentioned main control module is used to send a barrier control instruction to the beacon module when it detects that the tram is approaching or leaving the intersection; the above-mentioned beacon module is used to send the barrier control instruction to the trackside beacon; the above-mentioned trackside beacon is used to receive the barrier control instruction sent by the beacon module and send the barrier control instruction to the control unit; the above-mentioned beacon module and the trackside beacon communicate with each other using radio frequency communication or near-field communication; the above-mentioned control unit is used to control the barrier actuator to open or close the barrier according to the barrier control instruction.

[0030] The tram can include one or two onboard hosts. A single onboard host can include a main control module and a beacon module, and can also include other modules. Figure 2 The schematic diagram of the structure of a single vehicle-mounted host is shown. The specific modules and their functions included in the vehicle-mounted host are as follows: The power module mainly converts DC110V to DC24V (i.e. POWER-IN DC24V in the figure) to power the vehicle host. It adopts a dual power redundancy design, that is, a single vehicle host includes two power modules, which are redundant to each other.

[0031] The main control module, primarily running Linux, is responsible for data processing and interacting with other modules via the backplane. CAN and RS485 buses are used for data transmission with other modules. This module also employs a dual-master redundancy design, meaning a single vehicle host includes two mutually redundant master control modules, such as Master 1 and Master 2 in the figure. Each master control module includes a reset (RST) module, a power (PWR) module, a hard disk drive (HDD) module, a fault alarm (FAL) module, and a working status (WRK) module. It also includes multiple interfaces for connecting to the local area network (LAN), a display device (VAG) interface, and a USB interface for connecting to external devices.

[0032] The TCMS module refers to the Train Control and Management System. In the gate control system of this embodiment, this module may not participate in the control.

[0033] The speed module is used to connect the speed sensor with the direction signal and activation signal. It collects speed through the speed sensor, confirms the vehicle direction through the direction signal, and confirms the activation end through the activation signal.

[0034] The wireless module is mainly used for wireless communication. In the barrier gate control system of this embodiment, this module does not participate in the barrier gate control.

[0035] The BD / GPS module refers to the Beidou GPS navigation module, which has an external BD / GPS antenna and is mainly used to locate vehicles / trams. GPS refers to the Global Positioning System, and BD refers to the BeiDou Navigation Satellite System.

[0036] The beacon module is mainly responsible for communicating with the main control module and the trackside beacons in the gate device; it includes power status POWER and tag status TAG, and can also include an RS485 bus interface for connecting to other modules.

[0037] The interface module is primarily used to connect multiple onboard host computers in a vehicle / tram. This interface module is typically connected via hardwires, such as CAN bus and RS485 bus. Furthermore, the interface module can also connect to other modules in the onboard host computer, enabling direct communication between the interface module and other modules.

[0038] It can be seen that the above-mentioned single vehicle-mounted host can include a redundant design of dual power modules and a redundant design of dual main control modules, which can improve the reliability and availability of the vehicle-mounted host.

[0039] For gate devices installed at intersections, see Figure 3 The structural diagram of the barrier device shown in the figure can include a control unit, a barrier actuator, a power supply unit and a trackside beacon.

[0040] The control unit can be a microcontroller unit MCU (Microcontroller Unit), or other control chips, etc. The control unit is mainly used to communicate with the trackside beacon and control the gate opening or closing of the gate execution structure according to the communication results.

[0041] The gate execution structure is used to receive the operation instruction sent by the control unit, and the operation instruction is used to instruct the gate execution mechanism to open or close the gate. In this way, the gate execution structure can open or close the gate according to the operation instruction.

[0042] Trackside beacons are pre-installed alongside the track around a barrier device (specifically, near the barrier device). For example, they can be embedded in the track around the barrier device. This pre-embedded beacon is convenient and flexible, and its small size and high resistance to damage improve the flexibility of barrier device control and reduce hardware costs.

[0043] The following is an explanation of the control process of the barrier device by the above-mentioned barrier control system. The control process may specifically include: the main control module in the on-board host first detects whether the tram is approaching or leaving the intersection corresponding to the barrier device. Here, whether it is approaching the intersection corresponding to the barrier device refers to whether the tram is approaching the intersection corresponding to the barrier device when the tram is traveling toward the barrier device, and whether it is leaving the intersection corresponding to the barrier device refers to whether the tram has left the barrier device and is traveling in a direction away from the intersection corresponding to the barrier device. In the case where the main control module detects that the tram is approaching the intersection corresponding to the barrier device, the main control module may generate a barrier control instruction, which specifically includes a gate closing control instruction for instructing to close the barrier. In the case where the main control module detects that the tram is leaving the intersection corresponding to the barrier device, the main control module may generate a barrier control instruction, which specifically includes a gate opening control instruction for instructing to open the barrier.

[0044] After generating the barrier control instruction, the main control module can send the barrier control instruction to the beacon module. The beacon module can then directly send the barrier control instruction to the trackside beacon. Alternatively, in order to facilitate stable communication between the beacon module and the trackside beacon, the beacon module can be connected to an external beacon reader / writer. The beacon reader / writer is set on the outside of the tram and is used to communicate with the trackside beacon. After obtaining the barrier control instruction, the beacon module can write / send the barrier control instruction to the beacon reader / writer. The beacon reader / writer sends the barrier control instruction to the trackside beacon when the tram approaches or leaves the intersection corresponding to the barrier device. After receiving the barrier control instruction, the trackside beacon can send the barrier control instruction to the control unit. The control unit can then determine whether to open or close the barrier based on the barrier control instruction. It can then determine the corresponding operation instruction and send the operation instruction to the barrier execution structure. The barrier execution structure executes the operation instruction to open or close the barrier. When the barrier is closed, pedestrians and vehicles are prohibited from passing through the intersection corresponding to the barrier device. When the barrier is open, pedestrians and vehicles can pass through the intersection corresponding to the barrier device, thereby ensuring the driving safety of pedestrians and vehicles passing through the intersection.

[0045] Furthermore, the communication method between the above-mentioned beacon module and the trackside beacon can be specifically a communication method between the beacon reader and the trackside beacon, which can be a communication method through radio, specifically including radio frequency communication method RFID or near-field communication method NFC. Both of these communication methods can be used for identification without contacting the object, and are suitable for various harsh environments, such as situations with more complex traffic sections, etc., and the communication between the two does not rely on wireless networks, so it is more stable and reliable, thereby ensuring that the barrier device can receive the barrier control instructions in a timely and accurate manner to control the barrier.

[0046] Furthermore, to ensure that even if data is lost during communication, the transmission and reception of gate control instructions is not affected, as an optional embodiment, the beacon module is specifically configured to continuously transmit gate control instructions to the trackside beacon, and the trackside beacon is specifically configured to receive the gate control instructions transmitted by the beacon module and, upon receiving at least one gate control instruction, transmit the gate control instruction to the control unit. Specifically, when a tram approaches or departs from a gate device, which is typically close to the gate device or trackside beacon, the beacon module can control the beacon reader to continuously or constantly transmit gate control instructions to the trackside beacon, thereby ensuring that the trackside beacon can quickly and accurately receive the gate control instructions. During the process of the trackside beacon receiving the gate control instructions transmitted by the beacon reader, the trackside beacon can directly transmit the gate control instructions to the control unit upon receiving at least one gate control instruction. This allows the control unit to promptly control the opening or closing of the gate.

[0047] In this embodiment, the barrier gate control system includes an on-board host in a tram and a barrier gate device arranged at an intersection. The on-board host includes a main control module and a beacon module. The barrier gate device includes a control unit, a barrier gate execution structure and a trackside beacon. The trackside beacon is pre-set next to the track around the track device. During the barrier gate control process, the main control module is used to send a barrier gate control instruction to the beacon module when it detects that the tram is approaching or leaving the intersection. The beacon module is used to send the barrier gate control instruction to the trackside beacon. The trackside beacon is used to receive the barrier gate control instruction sent by the beacon module and send the barrier gate control instruction to the control unit. The control unit is used to control the barrier gate execution structure to open or close the barrier gate according to the barrier gate control instruction, wherein the beacon module and the trackside beacon communicate through radio frequency communication or near field communication. Since the barrier control system can perform radio frequency communication or near-field communication through the beacon module in the vehicle-mounted host and the trackside beacon in the barrier device to control the barrier device according to the radio frequency or near-field communication results, without relying on wireless network communication results to control the barrier device, the beacon communication process is more stable and reliable, thereby ensuring that the barrier device can stably and accurately obtain the barrier control instructions, thereby achieving accurate control of the barrier device.

[0048] The following embodiment describes a situation in which the main control module detects whether a tram is approaching or leaving an intersection corresponding to a gate device.

[0049] In some embodiments, the on-board host also includes a speed module, which is used to collect the running speed of the tram; the main control module is also used to determine the running displacement of the tram based on the running speed and the running time of the tram, and determine the current corresponding first position of the tram based on the running displacement, and detect whether the tram is approaching or leaving the intersection based on the first position of the tram and the position corresponding to the gate device.

[0050] Among them, continue to refer to the above Figure 2 As shown, the onboard host may include a speed module, which may be connected to an external speed sensor. The speed sensor is provided on the outside of the tram and is used to collect the running speed of the tram and transmit the collected running speed to the speed module, so that the speed module can collect the running speed of the tram. After the speed module obtains the running speed of the tram, it can transmit the running speed to the main control module. The main control module can calculate the running time of the tram from the starting point to the current position during the operation of the tram, and then obtain the current running displacement of the tram by multiplying the running speed by the running time. Then, combined with the position of the starting point, the current position of the tram can be calculated and recorded as the first position.

[0051] At the same time, the main control module can pre-store the position corresponding to the barrier device or the position of the barrier device corresponding to the intersection. After the main control module calculates the current first position of the tram, it can directly determine whether the tram is approaching or leaving the barrier device by the distance difference between the first position and the position corresponding to the barrier device. If the distance difference between the first position and the position corresponding to the barrier device is greater than 0 and less than a certain threshold, it means that the tram has left the barrier device. If the distance difference between the first position and the position corresponding to the barrier device is less than 0 and the absolute value is less than a certain threshold, it means that the tram is approaching the barrier device. In this way, the main control module can obtain whether the tram is approaching or leaving the intersection.

[0052] In addition, as an optional embodiment, the above-mentioned on-board host also includes a positioning module, which is used to collect the second position corresponding to the current position of the tram; the above-mentioned main control module is specifically used to verify the first position according to the second position, and if the verification is successful, detect whether the tram is approaching or leaving the intersection based on the first position of the tram and the position corresponding to the gate device.

[0053] Among them, continue to refer to the above Figure 2As shown, the onboard host computer may include a BD / GPS module, which is a positioning module. This positioning module is connected to a BD / GPS antenna external to the tram. The BD / GPS antenna measures the tram's current position and transmits it to the positioning module, which then obtains the tram's current position, recorded as the second position. The main control module can then verify the accuracy of the first position based on the second position. Specifically, the main control module can calculate the error between the first and second positions (for example, the position difference between the first and second positions) and determine whether the error is within a preset error range. If the error is within the preset error range, the first position verification is successful, meaning the calculated first position is accurate. This first position and the corresponding position of the barrier device can then be used to detect whether the tram is approaching or leaving the intersection. If the error is not within the preset range, the first position verification fails, meaning the calculated first position is incorrect. Recalculating the first position or using manual intervention can be considered. The preset error range can be set based on actual conditions and is not specifically limited here.

[0054] In addition, it should be noted that the positioning module generally provides a rough positioning of the tram, which can assist in verifying the position calculated by the running speed. However, when detecting whether the tram is approaching or leaving the barrier device, the position calculated by the running speed will be more accurate, so that it can accurately determine whether the tram is approaching or leaving the barrier device, thereby achieving accurate control of the barrier.

[0055] In this embodiment, the onboard host also includes a speed module to collect the running speed of the tram. The main control module can calculate the current position of the tram based on the running speed and running time, and accurately detect whether the tram is approaching or leaving the barrier device based on the current position of the tram and the barrier position. When approaching or leaving the barrier device, it sends a barrier control instruction to control the barrier, without having to send the barrier control instruction continuously during driving, thereby saving the power consumption of the tram and improving the accuracy of barrier control. In addition, the current position of the tram collected by the positioning module in the onboard host is used to verify the position calculated by the main control module based on the running speed. After the verification is successful, the position calculated based on the running speed is used to detect whether the tram is approaching or leaving the barrier device. This can further improve the accuracy of detection and thus improve the accuracy of barrier control.

[0056] The following embodiment illustrates the specific transmission process of the gate control command when the tram includes two onboard hosts.

[0057] In some embodiments, the above-mentioned on-board host includes a front-mounted host and a rear-mounted host electrically connected to each other, the front-mounted host includes a first main control module and a first beacon module, the rear-mounted host includes a second main control module and a second beacon module, the main control module includes a first main control module and a second main control module, and the beacon module includes a first beacon module and a second beacon module; the above-mentioned first main control module is used to send a gate closing control instruction to the first beacon module when it detects that a tram is approaching an intersection; the above-mentioned first beacon module is used to send the gate closing control instruction to the trackside beacon; the above-mentioned gate closing control instruction is used to instruct the gate device to control the gate execution structure to close the gate; the above-mentioned first main control module is used to send a gate opening control instruction to the second beacon module when it detects that a tram is leaving the intersection; the above-mentioned second beacon module is used to send the gate opening control instruction to the trackside beacon; the above-mentioned gate opening control instruction is used to instruct the gate device to control the gate execution structure to open the gate; the above-mentioned second main control module is used to upgrade to the first main control module when the tram is traveling toward the rear-mounted host.

[0058] Among them, see Figure 4 The structure diagram of the tram shown in FIG. 1 shows a tram comprising two onboard hosts, wherein both onboard hosts may include the above Figure 2 The modules shown in the figure are: one is the onboard host at the front of the vehicle (denoted as the front onboard host), and the other is the onboard host at the rear of the vehicle (denoted as the rear onboard host). The two onboard hosts can determine the direction of travel and the activation end through the direction signal and activation signal they receive. Generally, when a tram is traveling in a certain direction, the onboard host in that direction is the onboard host at the activation end. Here, the onboard host at the activation end can generally be considered to be the onboard host at the front of the vehicle. In other words, the onboard host at the front and the onboard host at the rear of the vehicle on a tram are relative concepts. That is, when the tram is traveling towards vehicle A, the onboard host in vehicle A is the onboard host at the front, and the onboard host in vehicle B is the onboard host at the rear. When the tram is traveling towards vehicle B, the onboard host in vehicle B is the onboard host at the front, and the onboard host in vehicle A is the onboard host at the rear.

[0059] At the same time, a beacon reader / writer is provided on the outside of a carriage corresponding to each of the two on-board hosts, for transmitting gate control instructions to the beacon module in the corresponding on-board host. At the same time, a speed sensor is provided on the outside of a carriage corresponding to each of the two on-board hosts, for transmitting the running speed of the tram to the speed module in the corresponding on-board host. The main control module in the front on-board host can be recorded as the first main control module, the beacon module in the front on-board host can be recorded as the first beacon module, the beacon reader / writer connected to the first beacon module can be recorded as the first beacon reader / writer, the main control module in the rear on-board host can be recorded as the second main control module, the beacon module in the rear on-board host can be recorded as the second beacon module, and the beacon reader / writer connected to the second beacon module can be recorded as the second beacon reader / writer.

[0060] The above-mentioned gate control process may specifically include a gate closing control process when a tram approaches the gate device and a gate opening control process when a tram leaves the gate device. These two processes are described below respectively.

[0061] See also Figure 5 The schematic diagram of the gate closing control process for a tram approaching a barrier gate device shows a first main control module detecting whether the tram is approaching the intersection corresponding to the barrier gate device. Specifically, it can detect whether the front of the tram is approaching the intersection corresponding to the barrier gate device. Upon detecting the tram approaching the intersection corresponding to the barrier gate device, the first main control module (i.e., the main control module in the onboard host of vehicle A in the figure) can send a gate closing control instruction to the first beacon reader / writer via the first beacon module. The first beacon reader / writer can then send the gate closing control instruction to the trackside beacon on the side closest to it. At this time, the first beacon reader / writer is closer to the trackside beacon on the side closer to it, allowing the gate closing control instruction to be sent to the trackside beacon quickly and accurately. The trackside beacon then sends the gate closing control instruction to the control unit, which controls the gate actuator to close the gate. This closes the intersection corresponding to the barrier gate device, prohibiting pedestrians and vehicles from passing, and ensuring driving and pedestrian safety.

[0062] See also Figure 6The schematic diagram of the gate opening control process of a tram leaving the gate device is shown. The first main control module detects whether the tram has left the intersection corresponding to the gate device, specifically whether the rear end of the tram has left the intersection corresponding to the gate device. When it is detected that the tram has left the intersection corresponding to the gate device, the first main control module can communicate with the interface module in the on-board host of the front vehicle through the interface module in the on-board host of the rear vehicle, and the interface module in the on-board host of the rear vehicle then communicates with the second beacon module to send the gate opening control instruction directly to the second beacon module through the interface module in the on-board host of the front vehicle and the interface module in the on-board host of the rear vehicle, and then send the gate opening control instruction to the second beacon reader via the second beacon module. After that, the second beacon reader can send the gate opening control instruction to the trackside beacon. At this time, the second beacon reader is closer to the trackside beacon than the first beacon reader, so the gate opening control instruction can be sent to the trackside beacon quickly and accurately. The trackside beacon can then send the gate opening control instruction to the control unit, which controls the gate actuator to open the gate. In this way, the gate device can be opened at the corresponding intersection, allowing pedestrians and vehicles to pass safely.

[0063] It should be noted that the interface modules in the above-mentioned front vehicle-mounted host and the rear vehicle-mounted host can communicate with each other, and the interface modules in both are connected to the beacon modules in their respective vehicle-mounted hosts. This makes it convenient for the first main control module to quickly send the gate opening control instructions to the second beacon module through the two interface modules, thereby improving the efficiency of gate control.

[0064] In addition, in order to facilitate more accurate and timely transmission of gate control instructions to trackside beacons via beacon readers, trackside beacons can be pre-installed on both sides of the intersection corresponding to the gate device (the specific number can be set according to actual conditions), and the trackside beacons installed on both sides of the intersection corresponding to the gate device are within a safe distance from the gate device. When a tram approaches the intersection corresponding to the gate device, a closing gate instruction can be sent to the trackside beacon on the side closest to it via the first beacon reader. At the same time, when the tram leaves the intersection corresponding to the gate device, a gate opening instruction can be sent to the trackside beacon on the side closest to it via the second beacon reader. This allows the gate control instructions of the beacon reader to be sent to the trackside beacon more accurately and promptly, further effectively improving the accuracy and efficiency of gate control.

[0065] Furthermore, as explained above, the front vehicle-mounted host and the rear vehicle-mounted host on a tram are relative concepts. Generally, when a tram is traveling in a certain direction, the vehicle-mounted host in a certain direction is the vehicle-mounted host at the activated end, that is, the front vehicle-mounted host. The above embodiments are all described with the tram traveling in the direction of vehicle A, that is, vehicle A is the front vehicle and vehicle B is the rear vehicle. When the tram is traveling in the direction of vehicle B, vehicle B becomes the front vehicle and vehicle A becomes the rear vehicle, that is, the vehicle-mounted host of vehicle B is upgraded to the front vehicle-mounted host, and the vehicle-mounted host of vehicle A is downgraded to the rear vehicle-mounted host. At this time, the second main control module in the vehicle-mounted host of vehicle B is upgraded to the first main control module, that is, it becomes the first main control module in the new front vehicle-mounted host, and then the barrier gate control continues, so that it can flexibly respond to the barrier gate control in various driving scenarios.

[0066] In this embodiment, the tram includes two on-board hosts. When the tram approaches or leaves the barrier device, the on-board host on the side closer to the barrier device or the trackside beacon can send a barrier control instruction to the beacon module on the corresponding side, and then send it to the trackside beacon through the beacon module. This can improve the stability, reliability and timeliness of communication between the beacon module and the trackside beacon, thereby effectively improving the accuracy and efficiency of barrier control.

[0067] Based on the barrier gate control system for trams in the above embodiment, a barrier gate control method applied to the barrier gate control system for trams will be described below.

[0068] Figure 7 : is a flow chart of a gate control method for a tram provided by the present invention, such as Figure 7 As shown, the method includes the following steps: Step 102: When the main control module detects that a tram is approaching or leaving the intersection, it sends a gate control instruction to the beacon module.

[0069] Step 104: The beacon module sends the gate control instruction to the trackside beacon.

[0070] Step 106: The trackside beacon receives the gate control instruction sent by the beacon module and sends the gate control instruction to the control unit; the beacon module and the trackside beacon communicate with each other using radio frequency communication or near field communication.

[0071] Step 108: The control unit controls the barrier gate actuator to open or close the barrier gate according to the barrier gate control instruction.

[0072] Optionally, in step 104, the beacon module sending the gate control instruction to the trackside beacon includes: the beacon module continuously sending the gate control instruction to the trackside beacon; In the above step 106, the trackside beacon receives the gate control instruction sent by the beacon module and sends the gate control instruction to the control unit, including: the trackside beacon receives the gate control instruction sent by the beacon module, and sends the gate control instruction to the control unit after receiving the gate control instruction at least once.

[0073] For the explanation of the gate control process in this embodiment, please refer to the explanation of the above-mentioned embodiment of the gate control system for trams, which will not be repeated here.

[0074] In this embodiment, during the barrier gate control process, the main control module sends a barrier gate control instruction to the beacon module when it detects that a tram is approaching or leaving the intersection. The beacon module sends the barrier gate control instruction to the trackside beacon. The trackside beacon receives the barrier gate control instruction sent by the beacon module and sends the barrier gate control instruction to the control unit. The control unit controls the barrier gate execution structure to open or close the barrier gate according to the barrier gate control instruction, wherein the beacon module and the trackside beacon communicate via radio frequency communication or near-field communication. In this barrier gate control method, since radio frequency communication or near-field communication can be performed between the beacon module in the on-board host and the trackside beacon in the barrier gate device to control the barrier gate device according to the radio frequency or near-field communication results, without relying on wireless network communication results to control the barrier gate device, the beacon communication process is more stable and reliable, thereby ensuring that the barrier gate device can stably and accurately obtain the barrier gate control instruction, thereby achieving accurate control of the barrier gate device.

[0075] In some embodiments, the vehicle-mounted host further includes a speed module, which is used to collect the running speed of the tram. The method further includes: The main control module determines the running displacement of the tram according to the running speed and the running time of the tram; the main control module determines the current first position corresponding to the tram according to the running displacement, and detects whether the tram is approaching or leaving the intersection according to the first position of the tram and the corresponding position of the gate device.

[0076] Optionally, the on-board host further includes a positioning module, which is used to collect the second position corresponding to the current position of the tram. The above-mentioned detecting whether the tram approaches or leaves the intersection based on the first position of the tram and the position corresponding to the gate device includes: The first position is verified according to the second position; if the error between the first position and the second position is within the preset error range, it is determined that the first position verification is successful; based on the first position of the tram and the corresponding position of the gate device, it is detected whether the tram is approaching or leaving the intersection.

[0077] For the explanation of the master module detecting whether the tram is approaching or leaving the intersection corresponding to the barrier device in the present embodiment, please refer to the above explanation of the barrier control system side embodiment for the tram, which will not be repeated here.

[0078] In the present embodiment, the vehicle-mounted host further includes a speed module to collect the running speed of the tram, and the master module can calculate the current position of the tram through the running speed and the running time, and accurately detect whether the tram is approaching or leaving the barrier device according to the current position of the tram and the position of the barrier, and send the barrier control instruction to control the barrier when approaching or leaving the barrier device, without sending the barrier control instruction all the time during the running, thereby saving the power consumption of the tram and improving the accuracy of the barrier control. In addition, the position of the tram collected by the positioning module in the vehicle-mounted host is used to verify the position calculated by the master module based on the running speed, and the position calculated based on the running speed is used to detect whether the tram is approaching or leaving the barrier device after the verification is successful, which can further improve the detection accuracy and thus improve the accuracy of the barrier control.

[0079] In some embodiments, the above vehicle-mounted host includes a vehicle head vehicle-mounted host and a vehicle tail vehicle-mounted host electrically connected to each other, the vehicle head vehicle-mounted host includes a first master module and a first beacon module, the vehicle tail vehicle-mounted host includes a second master module and a second beacon module, the master module includes the first master module and the second master module, and the beacon module includes the first beacon module and the above second beacon module. The master module sends the barrier control instruction to the beacon module when detecting that the tram is approaching or leaving the intersection, including: The first master module sends a closing control instruction to the first beacon module when detecting that the tram is approaching the intersection; the first beacon module sends the closing control instruction to the wayside beacon; and the closing control instruction is used to instruct the barrier device control to close the barrier by the barrier execution structure. The first master module sends an opening control instruction to the second beacon module when detecting that the tram is leaving the intersection; the second beacon module sends the opening control instruction to the wayside beacon; the opening control instruction is used to instruct the barrier device control to open the barrier by the barrier execution structure; and the second master module upgrades to the first master module when the tram is running in the direction of the vehicle tail vehicle-mounted host.

[0080] For the explanation of the specific transmission process of the barrier control instruction when the tram includes two vehicle-mounted hosts in the present embodiment, please refer to the above explanation of the barrier control system side embodiment for the tram, which will not be repeated here.

[0081] In this embodiment, the tram includes two on-board hosts. When the tram approaches or leaves the barrier device, the on-board host on the side closer to the barrier device or the trackside beacon can send a barrier control instruction to the beacon module on the corresponding side, and then send it to the trackside beacon through the beacon module. This can improve the stability, reliability and timeliness of communication between the beacon module and the trackside beacon, thereby effectively improving the accuracy and efficiency of barrier control.

[0082] 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.

[0083] Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented using software plus a necessary general-purpose hardware platform, or of course, hardware. Based on this understanding, the essence of the above technical solution, or the portion that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, or an optical disk, and includes a number of instructions for causing a computer device (such as a personal computer, server, or network device) to execute the methods described in each embodiment or certain portions of the embodiments.

[0084] 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 gate control system for trams, characterized in that: It includes an on-board host in a tram and a barrier device set at a road intersection. The on-board host includes a main control module and a beacon module. The barrier device includes a control unit, a barrier actuator and a trackside beacon. The trackside beacon is pre-set beside the track around the barrier device. The main control module is used to send a gate control instruction to the beacon module when detecting that the tram is approaching or leaving the intersection; The beacon module is used to send the gate control instruction to the trackside beacon; The trackside beacon is used to receive the gate control instruction sent by the beacon module and send the gate control instruction to the control unit; the beacon module and the trackside beacon communicate with each other using radio frequency communication or near field communication; The control unit is used to control the barrier gate actuator to open or close the barrier gate according to the barrier gate control instruction.

2. The gate control system for trams according to claim 1, characterized in that: The onboard host also includes a speed module, which is used to collect the running speed of the tram; The main control module is further used to determine the running displacement of the tram according to the running speed and the running time of the tram, determine the current first position corresponding to the tram according to the running displacement, and detect whether the tram is approaching or leaving the intersection according to the first position of the tram and the position corresponding to the gate device.

3. The gate control system for trams according to claim 2, characterized in that: The onboard host also includes a positioning module, which is used to collect the second position corresponding to the current position of the tram; The main control module is specifically used to verify the first position according to the second position, and if the verification is successful, detect whether the tram is approaching or leaving the intersection according to the first position of the tram and the corresponding position of the gate device.

4. The gate control system for trams according to claim 1, characterized in that: The vehicle-mounted host includes a front vehicle-mounted host and a rear vehicle-mounted host electrically connected to each other, the front vehicle-mounted host includes a first main control module and a first beacon module, the rear vehicle-mounted host includes a second main control module and a second beacon module, the main control module includes the first main control module and the second main control module, and the beacon module includes the first beacon module and the second beacon module; The first main control module is used to send a gate closing control instruction to the first beacon module when detecting that the tram is approaching the intersection; the first beacon module is used to send the gate closing control instruction to the trackside beacon; the gate closing control instruction is used to instruct the gate device to control the gate execution structure to close the gate; The first main control module is configured to send the gate opening control instruction to the second beacon module when detecting that the tram has left the intersection; The second beacon module is used to send the gate opening control instruction to the trackside beacon; the gate opening control instruction is used to instruct the gate device to control the gate execution structure to open the gate; The second main control module is used to upgrade to the first main control module when the tram is traveling towards the rear onboard host.

5. The gate control system for trams according to claim 1, characterized in that: The beacon module is specifically used to continuously send the gate control instructions to the trackside beacon; The trackside beacon is specifically used to receive the gate control instruction sent by the beacon module, and when the gate control instruction is received at least once, the gate control instruction is sent to the control unit.

6. A gate control method, characterized in that: Applied to the gate control system for a tram as claimed in any one of claims 1 to 5, the method comprises: When the main control module detects that the tram is approaching or leaving the intersection, the main control module sends a gate control instruction to the beacon module; The beacon module sends the gate control instruction to the trackside beacon; The trackside beacon receives the gate control instruction sent by the beacon module and sends the gate control instruction to the control unit; the beacon module and the trackside beacon communicate with each other using radio frequency communication or near field communication; The control unit controls the barrier gate actuator to open or close the barrier gate according to the barrier gate control instruction.

7. The gate control method according to claim 6, characterized in that: The onboard host further includes a speed module, which is used to collect the running speed of the tram. The method further includes: The main control module determines the running displacement of the tram according to the running speed and the running time of the tram; The main control module determines the current first position of the tram according to the running displacement, and detects whether the tram is approaching or leaving the intersection according to the first position of the tram and the position corresponding to the gate device.

8. The gate control method according to claim 7, characterized in that: The on-board host also includes a positioning module, which is used to collect the second position corresponding to the current position of the tram. The detecting whether the tram approaches or leaves the intersection based on the first position of the tram and the position corresponding to the gate device includes: verifying the first position according to the second position; If the error between the first position and the second position is within a preset error range, determining that the first position verification is successful; According to the first position of the tram and the corresponding position of the barrier device, it is detected whether the tram approaches or leaves the intersection.

9. The gate control method according to claim 6, characterized in that: The on-board host includes a front-mounted host and a rear-mounted host electrically connected to each other, the front-mounted host includes a first main control module and a first beacon module, the rear-mounted host includes a second main control module and a second beacon module, the main control module includes the first main control module and the second main control module, the beacon module includes the first beacon module and the second beacon module, and the main control module sends a gate control instruction to the beacon module when detecting that the tram approaches or leaves the intersection, including: When the first main control module detects that the tram is approaching the intersection, the first beacon module sends a gate closing control instruction to the first beacon module; the first beacon module sends the gate closing control instruction to the trackside beacon; the gate closing control instruction is used to instruct the gate device to control the gate execution structure to close the gate; When the first main control module detects that the tram has left the intersection, the first main control module sends the gate opening control instruction to the second beacon module; the second beacon module sends the gate opening control instruction to the trackside beacon; the gate opening control instruction is used to instruct the gate device to control the gate execution structure to open the gate; The second main control module is upgraded to the first main control module when the tram travels towards the rear onboard host.

10. The gate control method according to claim 6, characterized in that: The beacon module sends the gate control instruction to the trackside beacon, including: The beacon module continuously sends the gate control instructions to the trackside beacon; The trackside beacon receives the gate control instruction sent by the beacon module and sends the gate control instruction to the control unit, including: The trackside beacon receives the gate control instruction sent by the beacon module, and sends the gate control instruction to the control unit when receiving the gate control instruction at least once.

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