Signal machine display system based on holographic projection technology

Abstract

The invention belongs to the technical field of rail transit, and particularly relates to an annunciator display system based on a holographic projection technology. When the signal machine opening information received by the logic processing control unit I and the logic processing control unit II is the same, the logic processing control module calls a signal machine 3D image corresponding to the signal machine opening information in the storage module and sends the signal machine 3D image to the holographic projection device, and the holographic projection device displays the signal machine 3D image corresponding to the signal machine opening information; when the logic processing control unit I and the logic processing control unit II receive different signal machine opening information, the logic processing control module calls a signal machine 3D image corresponding to the degraded signal machine opening information in the storage module and sends the signal machine 3D image to the holographic projection device. And the holographic projection device displays a signal machine 3D image corresponding to the degraded signal machine open information.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transit, and particularly relates to a signal display system based on holographic projection technology. Background Art

[0002] Holographic projection technology (front-projected holographic display), also known as virtual imaging technology, is a technology that records and reproduces the true three-dimensional image of an object by using the principles of light interference and diffraction. Different from traditional stereoscopic images, holographic projection can present the depth, three-dimensional sense and multi-view observation effect of an object, and can realize image projection without any physical medium.

[0003] Currently, the signal systems of trunk railways, intercity railways and suburban railways in China are set with national railway signal systems, and the signal systems of urban rail transit are set with subway signal systems. There are significant differences in aspects such as the signal machine structure, lighting configuration method, and lighting display meaning between the national railway signal system and the subway signal system. For lines with the need for interconnection and operation between national railways and subways, a single ground signal machine beside the track cannot be unified in terms of configuration and display. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a signal display system based on holographic projection technology, which can display the 3D image of a five-light-position signal machine in the national railway signal system or the 3D image of a three-light-position signal machine in the subway signal system according to the actual situation when a train runs on a line with interconnection between national railways and subways.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A signal display system based on holographic projection technology, including a train control system and a power supply module; it also includes a storage module, a data acquisition and transmission module, a logic processing and control module, and a holographic projection device; the storage module, the data acquisition and transmission module, and the holographic projection device are all electrically connected to the logic processing and control module; the data acquisition and transmission module is electrically connected to the train control system; the storage module, the data acquisition and transmission module, the logic processing and control module, and the holographic projection device are all electrically connected to the power supply module;

[0006] The storage module is used to store the 3D images of signal machines, and the 3D images of signal machines include various 3D images of five-light-position signal machines in the national railway signal system and various 3D images of three-light-position signal machines in the subway signal system;

[0007] The data acquisition and transmission module receives the signal machine opening information sent by the train control system in real time and sends the signal machine opening information to the logic processing and control module; the logic processing and control module feeds back the signal machine display status of the holographic projection device to the train control system through the data acquisition and transmission module;

[0008] The logic processing and control module includes a logic processing and control unit I and a logic processing and control unit II. The logic processing and control unit I and the logic processing and control unit II respectively receive the signal machine opening information. When the signal machine opening information received by the logic processing and control unit I is the same as that received by the logic processing and control unit II, the logic processing and control module retrieves the signal machine 3D image corresponding to the signal machine opening information in the storage module and sends it to the holographic projection device, and the holographic projection device displays the signal machine 3D image corresponding to the signal machine opening information. When the signal machine opening information received by the logic processing and control unit I is different from that received by the logic processing and control unit II, the logic processing and control module retrieves the signal machine 3D image corresponding to the degraded signal machine opening information in the storage module and sends it to the holographic projection device, and the holographic projection device displays the signal machine 3D image corresponding to the degraded signal machine opening information.

[0009] Furthermore, the 3D images of various five-light-position signal machines of the national railway signal system include the 3D images of five-light-position signal machines showing one green light, the 3D images of five-light-position signal machines showing one yellow light, the 3D images of five-light-position signal machines showing two yellow lights, the 3D images of five-light-position signal machines showing one yellow flash and one yellow light, the 3D images of five-light-position signal machines showing one red light, the 3D images of five-light-position signal machines showing one green light and one yellow light, and the 3D images of five-light-position signal machines showing one red light and one white light;

[0010] The 3D images of various three-light-position signal machines of the subway signal system include the 3D images of three-light-position signal machines showing a green light, the 3D images of three-light-position signal machines showing a yellow light, the 3D images of three-light-position signal machines showing a red light, and the 3D images of three-light-position signal machines showing a yellow light and a red light.

[0011] Furthermore, it also includes a monitoring and alarm module. The storage module, the data acquisition and transmission module, the logic processing and control module, the holographic projection device, and the train control system are all electrically connected to the monitoring and alarm module. The monitoring and alarm module is electrically connected to the power supply module.

[0012] Furthermore, the national railway signal system is the CTCS signal system.

[0013] Furthermore, the subway signal system includes the CBTC and TACS signal systems.

[0014] Furthermore, the power supply module includes a power supply unit I and a power supply unit II. The storage module, the data acquisition and transmission module, the logic processing and control module, the holographic projection device, and the monitoring and alarm module are all electrically connected to the power supply unit I and the power supply unit II respectively.

[0015] Furthermore, both the power supply unit I and the power supply unit II are 220V AC power supply devices.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a signal display system based on holographic projection technology. When a train operates on a line where national railways and subways are interconnected, it can display 3D images of five-light signal machines in the national railway signal system or 3D images of three-light signal machines in the subway signal system according to actual situations, solving the problem of inconsistent signal display methods under different standard systems. It also has the following advantages:

[0017] First, it has strong dynamics and flexibility. The display content can be adjusted in real time to adapt to temporary dispatching requirements such as tidal passenger flow and line maintenance.

[0018] Second, it has high space utilization rate. It directly forms an image in the air without a medium. There is no need to install physical signal machines, reducing the occupation of track space and lowering construction and maintenance costs.

[0019] Third, it enhances the warning effect: The three-dimensional floating image is more easily recognized by drivers and passengers, reducing the risk of human errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is a flowchart of the present invention;

[0022] Reference numerals: 1 - train control system; 2 - power supply module; 3 - storage module; 4 - data acquisition and transmission module; 5 - logic processing and control module; 6 - holographic projection device; 7 - monitoring and alarm module. DETAILED DESCRIPTION OF THE INVENTION

[0023] The present invention will be further described below in conjunction with the drawings and embodiments.

[0024] A signal display system based on holographic projection technology includes a train control system 1 and a power supply module 2; characterized in that it further includes a storage module 3, a data acquisition and transmission module 4, a logic processing and control module 5, and a holographic projection device 6; the storage module 3, the data acquisition and transmission module 4, and the holographic projection device 6 are all electrically connected to the logic processing and control module 5; the data acquisition and transmission module 4 is electrically connected to the train control system 1; the storage module 3, the data acquisition and transmission module 4, the logic processing and control module 5, and the holographic projection device 6 are all electrically connected to the power supply module 2.

[0025] The storage module 3 is used to store 3D images of signal machines, and the 3D images of signal machines include various 3D images of five-light signal machines in the national railway signal system and various 3D images of three-light signal machines in the subway signal system.

[0026] The data acquisition and transmission module 4 receives the signal opening information sent by the train control system 1 in real time and sends the signal opening information to the logic processing and control module 5; the logic processing and control module 5 feeds back the signal display status of the holographic projection device 6 to the train control system 1 through the data acquisition and transmission module 4.

[0027] The logic processing and control module 5 includes a logic processing and control unit I and a logic processing and control unit II. The logic processing and control unit I and the logic processing and control unit II respectively receive the signal opening information; when the signal opening information received by the logic processing and control unit I is the same as that received by the logic processing and control unit II, the logic processing and control module 5 retrieves the 3D signal image corresponding to the signal opening information from the storage module 3 and sends it to the holographic projection device 6, and the holographic projection device 6 displays the 3D signal image corresponding to the signal opening information; when the signal opening information received by the logic processing and control unit I is different from that received by the logic processing and control unit II, the logic processing and control module 5 retrieves the 3D signal image corresponding to the degraded signal opening information from the storage module 3 and sends it to the holographic projection device 6, and the holographic projection device 6 displays the 3D signal image corresponding to the degraded signal opening information.

[0028] Specifically, the data acquisition and transmission module 4 is electrically connected to the interlocking system of the train control system 1. The holographic projection device 6 is a prior art, and the controller of the holographic projection device 6 is electrically connected to the logic processing and control module 5.

[0029] The signal opening information is also the signal lighting information.

[0030] The logic processing and control unit I and the logic processing and control unit II receive the same signal opening information simultaneously. If the signal opening information received by the logic processing control unit I and the logic processing control unit II is different, a degraded signal is displayed. The degraded display of the signal is a safety guarantee mechanism in railways and rail transit, which means that in specific situations, the signal will degrade the originally displayable high-level signal to a low-level signal to control the running speed of the train.

[0031] The so-called logic processing and control unit I in the text is also the processing unit 1 in the appendix Figure 2 and the logic processing and control unit II is also the processing unit 2 in the appendix Figure 2 as shown.

[0032] Specifically, the 3D images of various five - light - position signal lamps of the national railway signal system include the 3D image of a five - light - position signal lamp showing a green light, the 3D image of a five - light - position signal lamp showing a yellow light, the 3D image of a five - light - position signal lamp showing two yellow lights, the 3D image of a five - light - position signal lamp showing a yellow flashing light and a yellow light, the 3D image of a five - light - position signal lamp showing a red light, the 3D image of a five - light - position signal lamp showing a green light and a yellow light, and the 3D image of a five - light - position signal lamp showing a red light and a white light.

[0033] The 3D images of various three - light - position signal lamps of the subway signal system include the 3D image of a three - light - position signal lamp showing a green light, the 3D image of a three - light - position signal lamp showing a yellow light, the 3D image of a three - light - position signal lamp showing a red light, and the 3D image of a three - light - position signal lamp showing a yellow light and a red light.

[0034] The 3D images of various five - light - position signal lamps of the national railway signal system have the following meanings:

[0035] First, the 3D image of a five - light - position signal lamp showing a green light: It permits the train to pass through the station on the main line at the specified speed, indicating that the departure and approach signal lamps are in the open state, and the turnouts on the approach are all set to the straight - through position.

[0036] Second, the 3D image of a five - light - position signal lamp showing a yellow light: It permits the train to enter the main line in the station through the straight - through position of the turnout and prepare to stop.

[0037] Third, the 3D image of a five - light - position signal lamp showing two yellow lights: It permits the train to enter the station through the lateral position of the turnout and prepare to stop.

[0038] Fourth, the 3D image of a five - light - position signal lamp showing a yellow flashing light and a yellow light: It permits the train to pass through the lateral position of a turnout No. 18 or above, enter the station and pass the next open signal lamp, and the route protected by this signal lamp passes through the straight - through position of the turnout or the lateral position of a turnout No. 18 or above. The No. 18 is the turnout number. The turnout number is a key technical parameter in the railway track system. Its value is equal to the cotangent of the frog angle. The turnout number determines the structural characteristics of the turnout and various turnout parameters, etc. Among them, the various turnout parameters include turnout lateral speed limit, turnout length and other parameters.

[0039] Fifth, the 3D image of a five - light - position signal lamp showing a red light: It prohibits the train from passing this signal lamp.

[0040] Sixth, the 3D image of a five - light - position signal lamp showing a green light and a yellow light: It permits the train to enter the station through the straight - through position of the turnout, pass the next open signal lamp and prepare to stop.

[0041] Seventh, display the 3D image of a five-light signal machine with a red light and a white light: the guiding signal. When the inbound or receiving signal machine cannot open the receiving signal due to malfunctions or other reasons, it indicates that the train enters the station or passes through at a speed not exceeding the specified speed.

[0042] The 3D images of various three-light signal machines in the subway signal system have the following meanings:

[0043] First, the 3D image of a three-light signal machine showing a green light: It means that all turnouts in the route are set to the straight direction, and the train is permitted to cross the signal machine at the normal speed.

[0044] Second, the 3D image of a three-light signal machine showing a yellow light: It means that the turnout in the route is set to the lateral direction, and the train is permitted to cross the signal machine at the corresponding restricted speed.

[0045] Third, the 3D image of a three-light signal machine showing a red light: The train is not permitted to cross the signal machine.

[0046] Fourth, the 3D image of a three-light signal machine showing a yellow light and a red light: It means that the guiding signal is open.

[0047] Preferably, it further includes a monitoring and alarm module 7; the storage module 3, the data acquisition and transmission module 4, the logic processing and control module 5, the holographic projection device 6, and the train control system 1 are all electrically connected to the monitoring and alarm module 7; the monitoring and alarm module 7 is electrically connected to the power supply module 2.

[0048] Specifically, the monitoring and alarm module 7 is electrically connected to the centralized monitoring system of the train control system 1. The monitoring and alarm module 7 monitors the working states of the storage module 3, the data acquisition and transmission module 4, the logic processing and control module 5, and the holographic projection device 6 in real time, and sends the fault information to the centralized monitoring system of the train control system 1.

[0049] Specifically, the national railway signal system is the CTCS signal system. CTCS (China Train Control System), the Chinese name is the Chinese Train Control System, which is a technical system constructed by China Railway referring to the European Train Control System and combining the actual situation in China.

[0050] Specifically, the subway signal system includes CBTC and TACS signal systems. CBTC (Communication - Based Train Control System), whose Chinese name is train automatic control system based on vehicle - to - ground communication, uses a communication network to achieve two - way communication between trains and ground equipment and realizes train operation control in urban rail transit. TACS (Train Autonomous Circumambulate System), whose Chinese name is train autonomous operation system based on vehicle - to - vehicle communication, is an evolved technology of the CBTC system. It realizes train autonomous operation, autonomous control, and autonomous protection through direct communication between vehicles.

[0051] Preferably, the power supply module 2 includes power supply unit I and power supply unit II; the storage module 3, data acquisition and transmission module 4, logic processing and control module 5, holographic projection device 6, and monitoring and alarm module 7 are all electrically connected to power supply unit I and power supply unit II respectively. When power supply unit I fails to supply power, power supply unit II supplies power; when power supply unit II fails to supply power, power supply unit I supplies power, effectively ensuring the normal power supply to the system.

[0052] Specifically, both power supply unit I and power supply unit II are 220V AC power supply devices.

[0053] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Any equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A signal display system based on holographic projection technology, comprising a train control system (1) and a power supply module (2); characterized in that, It also includes a storage module (3), a data acquisition and transmission module (4), a logic processing and control module (5), and a holographic projection device (6); the storage module (3), the data acquisition and transmission module (4), and the holographic projection device (6) are all electrically connected to the logic processing and control module (5); the data acquisition and transmission module (4) is electrically connected to the train control system (1); the storage module (3), the data acquisition and transmission module (4), the logic processing and control module (5), and the holographic projection device (6) are all electrically connected to the power supply module (2). The storage module (3) is used to store the signal lamp 3D images, and the signal lamp 3D images include various five-light-position signal lamp 3D images of national railway signal systems and various three-light-position signal lamp 3D images of subway signal systems. The data acquisition and transmission module (4) receives the signal lamp opening information sent by the train control system (1) in real time and sends the signal lamp opening information to the logic processing and control module (5); the logic processing and control module (5) feeds back the signal lamp display status of the holographic projection device (6) to the train control system (1) through the data acquisition and transmission module (4). The logic processing and control module (5) includes a logic processing and control unit I and a logic processing and control unit II, and the logic processing and control unit I and the logic processing and control unit II respectively receive the signal lamp opening information; when the signal lamp opening information received by the logic processing and control unit I and the logic processing and control unit II is the same, the logic processing and control module (5) retrieves the signal lamp 3D image corresponding to the signal lamp opening information from the storage module (3) and sends it to the holographic projection device (6), and the holographic projection device (6) displays the signal lamp 3D image corresponding to the signal lamp opening information; when the signal lamp opening information received by the logic processing and control unit I and the logic processing and control unit II is different, the logic processing and control module (5) retrieves the signal lamp 3D image corresponding to the degraded signal lamp opening information from the storage module (3) and sends it to the holographic projection device (6), and the holographic projection device (6) displays the signal lamp 3D image corresponding to the degraded signal lamp opening information.

2. The signal display system based on holographic projection technology according to claim 1, wherein The various five-light-position signal lamp 3D images of the national railway signal system include five-light-position signal lamp 3D images showing one green light, five-light-position signal lamp 3D images showing one yellow light, five-light-position signal lamp 3D images showing two yellow lights, five-light-position signal lamp 3D images showing one yellow flash and one yellow light, five-light-position signal lamp 3D images showing one red light, five-light-position signal lamp 3D images showing one green light and one yellow light, and five-light-position signal lamp 3D images showing one red light and one white light. The various three-light-position signal lamp 3D images of the subway signal system include three-light-position signal lamp 3D images showing a green light, three-light-position signal lamp 3D images showing a yellow light, three-light-position signal lamp 3D images showing a red light, and three-light-position signal lamp 3D images showing a yellow light and a red light.

3. A signal display system based on holographic projection technology according to any one of claims 1-2, characterized in that It further includes a monitoring and alarm module (7); the storage module (3), the data acquisition and transmission module (4), the logic processing and control module (5), the holographic projection device (6) and the train control system (1) are all electrically connected to the monitoring and alarm module (7); the monitoring and alarm module (7) is electrically connected to the power supply module (2).

4. A signal display system based on holographic projection technology according to claim 1, characterized in that, The national railway signal system is the CTCS signal system.

5. The signal display system based on holographic projection technology according to claim 1, wherein The subway signal system includes the CBTC and TACS signal systems.

6. The signal display system based on holographic projection technology according to claim 3, characterized in that, The power supply module (2) includes a power supply unit I and a power supply unit II; the storage module (3), the data acquisition and transmission module (4), the logic processing and control module (5), the holographic projection device (6) and the monitoring and alarm module (7) are all electrically connected to the power supply unit I and the power supply unit II respectively.

7. The signal display system based on holographic projection technology according to claim 6, wherein Both the power supply unit I and the power supply unit II are 220V AC power supply devices.

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