Route guidance system based on digital twinning technology
Through the route guidance system of digital twin technology, the evacuation route is adjusted in real time and dynamic indicators and fill light modules are used to solve the problem of lack of guidance for emergency evacuation plans in public buildings, and achieve clear evacuation instructions and efficient escape.
Patent Information
- Application Number
- CN202510633177.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2025-09-12
AI Technical Summary
The emergency evacuation plan of the existing public building simulation system lacks a reliable guidance system combined with it, resulting in the emergency evacuation plan being unable to reliably guide trapped people inside the building to escape.
A route guidance system based on digital twin technology is adopted, including a data acquisition module, a model management module, a path planning module and a route indication module. Dynamic indicators are used to adjust the evacuation path and indicate the direction in real time at the intersection of internal passages in the building. Combined with the fill light module, it provides clear guidance in low-light or smoky environments.
It implements dynamic route guidance inside public buildings, adjusts evacuation routes based on real-time data, ensures people can escape the building clearly, and improves the reliability and efficiency of emergency evacuation.
Smart Images
Figure CN120628055A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of digital twin technology, and in particular to a route guidance system based on digital twin technology. Background Art
[0002] Digital twins are a technology system that creates a dynamic mirror image of a physical entity throughout its lifecycle in virtual space through data perception, modeling analysis, and real-time interaction. Its core goal is to achieve bidirectional mapping and collaborative optimization between the physical and digital worlds, while leveraging technologies such as artificial intelligence and the Internet of Things to enhance forecasting and decision-making capabilities.
[0003] To effectively implement refined management within public buildings, digital twin technology can be used to create virtual models of public buildings. Furthermore, through IoT technology, sensors and other data acquisition terminals can be used to acquire dynamic data about public buildings and construct dynamically changing simulation virtual models. Furthermore, digital twin-based simulation virtual models of public buildings can help managers plan emergency evacuation plans to evacuate people within public buildings during emergencies. Emergency evacuation plans need to be adjusted based on the real-time conditions within the building to ensure their reliability. However, existing public building simulation systems that output emergency evacuation plans lack the coordination of the building's internal guidance system, resulting in the inability of emergency evacuation plans to reliably guide trapped people within the building to escape along evacuation routes. Summary of the Invention
[0004] The purpose of the present invention is to provide a route guidance system based on digital twin technology to solve the problem that the emergency evacuation plan of the public building simulation system lacks a reliable guidance system combined with it.
[0005] In order to achieve the above objectives, the present invention adopts the following technical solution: a route guidance system based on digital twin technology, comprising:
[0006] Data acquisition module, which is used to collect dynamic data inside public buildings, including smoke concentration, occupant distribution and temperature;
[0007] The model management module is used to update the status of the public building digital twin model in real time based on the collected dynamic data inside the public building;
[0008] The path planning module is used to generate several evacuation routes based on the location of public building safety exits, installed exit capacity, and real-time dynamic data collected. The evacuation routes are modified in real time according to changes in dynamic data;
[0009] A route indication module, which is used to control the rotation indication direction of the dynamic indicator according to the evacuation route planned by the path planning module;
[0010] The dynamic indicator is installed at the intersection of the internal passage of the building. The dynamic indicator includes an outer ring body and an indicator arrow housing. The outer ring body is provided with a rotating shaft, which is connected to a driver. The driver is used to receive control instructions from the route indication module and control the rotation of the rotating shaft. A first green light panel is provided on one opposite side of the indicator arrow housing, a red light panel is provided on the arrow side end face of the indicator arrow housing, and a second green light panel is provided on the other side end face of the indicator arrow housing.
[0011] A red annular lamp body is provided on the surface of the outer ring body on the arrow side of the indicator arrow housing, and a green annular lamp body is provided on the surface of the other side of the outer ring body.
[0012] As a further description of the above technical solution:
[0013] A fill light module is also provided in the indicator arrow housing, which includes an electric push rod, a driving rack, a driving gear, a driven gear, a swing arm and a lamp body. The driving gear is fixedly mounted on the piston rod of the electric push rod, the driving rack is engaged with the driving gear, the driving gear is engaged with the driven gear, one end of the swing arm is fixedly mounted on the driven gear, and the lamp body is fixedly mounted on the swing arm.
[0014] As a further description of the above technical solution:
[0015] A counterweight is provided on one side of the driving rack.
[0016] As a further description of the above technical solution:
[0017] The counterweight block is a roller-shaped structure, and is rotatably mounted on the driving rack. The bottom of the counterweight block contacts the bottom surface of the inner cavity of the indicator arrow housing.
[0018] As a further description of the above technical solution:
[0019] The dynamic indicator also includes a display frame, which is fixedly installed on the top surface of the building, and symmetrically arranged display screens are provided on both sides of the display frame.
[0020] As a further description of the above technical solution:
[0021] The rotating shaft passes through the display frame.
[0022] As a further description of the above technical solution:
[0023] The route indication module includes a dynamic correction unit, which is used to generate evacuation path branches according to changes in the density of people on the evacuation path, and adjust the density of people on the evacuation path in real time so that it does not exceed a set threshold.
[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0025] 1. In the present invention, the model management module establishes a digital twin model of a public building and updates the status of the digital twin model of the public building in real time based on the dynamic data inside the public building collected by the data acquisition module. The route indication module uses the digital twin model of the public building to generate an emergency evacuation plan including several evacuation routes, and adjusts it in real time based on the dynamic data inside the public building.
[0026] 2. In this invention, a route guidance module composed of several dynamic indicators within public buildings implements dynamic route guidance for real-time, dynamically adjusted emergency evacuation plans. These dynamic indicators, located at intersections within the building, can adjust the orientation of their arrow housings in real time based on changes in the evacuation route, directing occupants to follow their evacuation routes. Unlike simple arrow guidance, dynamic indicators utilize the coordination of an outer ring and arrow housings to clearly indicate the direction to occupants in all directions of the intersection.
[0027] 3. In the present invention, under normal conditions, the lamp rotates and is housed within the indicator arrow housing. When ambient brightness falls below a set threshold or smoke concentration exceeds a set threshold, the route indication module activates the fill light module within the dynamic indicator. The piston rod of the electric actuator extends the drive rack, which in turn rotates the drive gear, which in turn rotates the driven gear. The swing arm on the driven gear rotates the lamp body, which then opens and tilts forward to illuminate the road ahead in the direction indicated by the arrow, providing route guidance. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0029] Figure 1 This is a structural diagram of a dynamic indicator in a route guidance system based on digital twin technology.
[0030] Figure 2 Schematic diagram of the state change of dynamic indicators in a route guidance system based on digital twin technology Figure 1 .
[0031] Figure 3 Schematic diagram of the state change of dynamic indicators in a route guidance system based on digital twin technology Figure 2 .
[0032] Figure 4 Schematic diagram of the state change of dynamic indicators in a route guidance system based on digital twin technology Figure 3 .
[0033] Figure 5 Schematic diagram of the structure of the fill light module in a route guidance system based on digital twin technology Figure 1 .
[0034] Figure 6 Schematic diagram of the structure of the fill light module in a route guidance system based on digital twin technology Figure 2 .
[0035] Figure 7 Schematic diagram of the structure of the fill light module in a route guidance system based on digital twin technology Figure 3 .
[0036] Legend:
[0037] 1. Dynamic indicator; 11. Outer ring body; 111. Red annular light body; 112. Green annular light body; 12. Indicator arrow housing; 121. Red light board; 122. Second green light board; 13. Rotating shaft; 2. Electric push rod; 3. Drive rack; 4. Drive gear; 5. Driven gear; 6. Swing arm; 7. Light body; 8. Counterweight; 9. Display stand. DETAILED DESCRIPTION
[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.
[0040] Example 1
[0041] See also Figure 1-4 The invention provides a technical solution: a route guidance system based on digital twin technology, comprising:
[0042] Data acquisition module, which is used to collect dynamic data inside public buildings, including smoke concentration, occupant distribution and temperature;
[0043] The model management module is used to update the status of the public building digital twin model in real time based on the collected dynamic data inside the public building;
[0044] The path planning module is used to generate several evacuation routes based on the location of public building safety exits, installed exit capacity, and real-time dynamic data collected. The evacuation routes are modified in real time according to changes in dynamic data;
[0045] A route indication module, which is used to control the rotation indication direction of the dynamic indicator 1 according to the evacuation route planned by the path planning module;
[0046] The dynamic indicator 1 is installed at the intersection of the internal passage of the building. The dynamic indicator 1 includes an outer ring body 11 and an indicator arrow housing 12. The outer ring body 11 is provided with a rotating shaft 13, which is connected to a driver. The driver is used to receive control instructions from the route indication module and control the rotation of the rotating shaft 13. A first green light panel is provided on one opposite side of the indicator arrow housing 12, a red light panel 121 is provided on the arrow-side end surface of the indicator arrow housing 12, and a second green light panel 122 is provided on the other side end surface of the indicator arrow housing 12.
[0047] A red annular lamp body 111 is provided on the surface of the outer ring body 11 on the arrow side of the indicator arrow housing 12 , and a green annular lamp body 112 is provided on the other side surface of the outer ring body 11 .
[0048] The data acquisition module includes IoT devices such as smoke concentration sensors, temperature sensors, cameras, infrared motion sensors, acoustic sensors, and air pressure sensors, which collect real-time dynamic data from within public buildings. Acoustic sensors detect cries for help and hurried footsteps, while air pressure sensors detect blockages within building passages. Combining smoke and temperature data creates a more comprehensive environmental model, and multimodal data fusion improves the accuracy of the digital twin model.
[0049] The path planning module can prioritize and adjust the path based on acoustic signals (such as people calling for help), thus implementing a "people-oriented" evacuation strategy.
[0050] The path planning module uses cameras and AI algorithms to analyze people's movements, predict possible congestion areas, and generate diversion strategies in advance within the path planning module. This upgrades "post-event response" to "pre-event prediction," reducing confusion during evacuations. The digital twin model can simulate the behavior patterns of different groups of people (such as children and the elderly) to optimize evacuation plans.
[0051] The model management module establishes a digital twin model of a public building and updates the status of the digital twin model of the public building in real time based on the dynamic data inside the public building collected by the data acquisition module. The route indication module uses the digital twin model of the public building to generate an emergency evacuation plan including several evacuation routes, and adjusts it in real time based on the dynamic data inside the public building.
[0052] For real-time, dynamically adjusted emergency evacuation plans, a route indication module consisting of several dynamic indicators 1 within public buildings implements dynamic route guidance. Dynamic indicators 1 are installed at intersections within the building's passageways. They can adjust the orientation of the indicator arrow housing 12 in real time based on changes in the evacuation route, directing occupants to move along the evacuation route.
[0053] In an emergency, people are often nervous and struggle to absorb complex information. Therefore, a dynamic indicator 1 is needed to clearly and concisely indicate evacuation and escape directions. Therefore, unlike simple arrows, the dynamic indicator 1 utilizes the outer ring 11 and the arrow housing 12 to clearly indicate directions to people in all directions at the intersection.
[0054] The working principle of dynamic indicator 1 is as follows:
[0055] 1) See Appendix Figure 2 For escaping personnel in the channels on both sides of the indicator arrow housing 12, which are perpendicular to the direction of the indicator arrow housing 12, when looking at the dynamic indicator 1, they can see the side wall of the outer ring body 11 and the indicator arrow housing 12. Through the first green light panel and the arrow direction on the indicator arrow housing 12, they can clearly confirm the escape direction;
[0056] 2) See Appendix Figure 3 For an escaping person who is in a straight line with the indicator arrow housing 12 and in the channel in front of the direction indicated by the indicator arrow housing 12, when looking at the dynamic indicator 1, he can see the red annular light body 111 on the surface of the outer ring body 11 and the red light board 121 at the end of the indicator arrow housing 12, which can clearly indicate that he should not approach the dynamic indicator 1;
[0057] 3) See Appendix Figure 4 For the escaping personnel who are in a straight line with the indicator arrow housing 12 and in the rear channel of the direction indicated by the indicator arrow housing 12, when looking at the dynamic indicator 1, they can see the green annular light body 112 on the surface of the outer ring body 11 and the second green light board 122 at the end of the indicator arrow housing 12, which can clearly indicate that they are approaching and passing the dynamic indicator 1.
[0058] The route guidance module includes a dynamic correction unit, which generates branch evacuation routes based on changes in occupant density along the evacuation route, adjusting the density in real time to ensure it does not exceed a set threshold. If a gathering of people occurs at a certain point on a single evacuation route and the evacuation rate falls below a set threshold, such as if the density exceeds three people per square meter at a certain point on the evacuation route, an additional branch evacuation route is planned in front of that point to divert people around it, improving evacuation efficiency.
[0059] Example 2
[0060] See also Figure 5-7 On the basis of the above embodiment, this embodiment further makes the following improved technical solutions: a fill light module is also provided in the indicator arrow housing 12, and the fill light module includes an electric push rod 2, a driving rack 3, a driving gear 4, a driven gear 5, a swing arm 6 and a lamp body 7. The driving gear 4 is fixedly mounted on the piston rod of the electric push rod 2, the driving rack 3 is engaged with the driving gear 4, the driving gear 4 is engaged with the driven gear 5, one end of the swing arm 6 is fixedly mounted on the driven gear 5, and the lamp body 7 is fixedly mounted on the swing arm 6.
[0061] Under normal conditions, the lamp body 7 rotates and is housed within the arrow indicator housing 12. When the ambient brightness falls below a set threshold or the smoke concentration exceeds a set threshold, the route indication module activates the fill light module within the dynamic indicator 1. The piston rod of the electric push rod 2 drives the drive rack 3 to extend, which in turn rotates the drive gear 4, which in turn drives the driven gear 5 to rotate. The swing arm 6 on the driven gear 5 drives the lamp body 7 to rotate and open. The lamp body 7 then tilts forward to illuminate the road ahead in the direction indicated by the arrow, providing route guidance.
[0062] The fill light module also includes a light intensity sensor for detecting ambient brightness. This allows the fill light module to automatically adjust the brightness and angle of the fill light based on the ambient brightness, such as in the event of a fire with dense smoke or insufficient brightness from standard lighting, to avoid glare from strong light or ineffectiveness from weak light.
[0063] The fill light module not only responds passively to smoke or low light, but also uses light intensity sensors to actively sense the environment and optimize lighting effects. It automatically controls the angle of the lamp through an algorithm to ensure that the light always covers the blind spots of the evacuation path.
[0064] Example 3
[0065] See also Figure 5-7 Based on the above embodiment, this embodiment further makes the following improved technical solution: a counterweight block 8 is provided on one side of the driving rack 3.
[0066] Under normal conditions, the weight of the fill light module is basically evenly distributed on both sides of the rotating shaft 13; but as the lamp body 7 rotates and opens, the lamp body 7 used to balance the weight approaches the rotating shaft 13 and moves downward, causing the weight balance to be broken, and the counterweight block 8 moves forward with the driving rack 3 to achieve counterweight compensation, ensuring that the driving rack 3 is hung stably.
[0067] In addition, the counterweight block 8 is a roller-shaped structure, and the counterweight block 8 is rotatably mounted on the driving rack 3 , and the bottom of the counterweight block 8 contacts the bottom surface of the inner cavity of the indicator arrow housing 12 .
[0068] On the one hand, the counterweight 8 supports the driving rack 3 to prevent the driving rack 3 from sagging, ensuring the contact between the driving rack 3 and the driving gear 4 to ensure the transmission effect, while facilitating forward movement and reducing resistance.
[0069] Example 4
[0070] This embodiment further provides the following improved technical solutions based on the above embodiments: the dynamic indicator 1 further includes a display frame 9 , which is fixedly mounted on the top surface of the building, and symmetrically arranged display screens are provided on both sides of the display frame 9 .
[0071] The display screen of display frame 9 is used to display dynamic data and other content within public buildings, enriching the displayed content. A rotating shaft 13 is inserted through display frame 9, which assists with the mounting of outer ring 11 and indicator arrow housing 12, improving the stability of the display. Multilingual support (such as switching between Chinese and English) and voice broadcast capabilities have been added to the display screen to enhance the system's universality.
[0072] Example 5
[0073] This embodiment further provides the following improved technical solutions based on the above embodiments: the route guidance system can be set up in a digital twin-driven emergency drill mode. During daily drills, the system can simulate scenarios such as fires and power outages, and the dynamic indicators switch directions according to preset scripts to test the efficiency of personnel evacuation. Drill data (such as crowd speed and bottleneck points) are automatically transmitted back to the digital twin model to optimize the actual emergency plan. Through a combination of virtual and real training, personnel's familiarity with the dynamic indicator system is improved, reducing confusion in real disasters.
[0074] Example 6
[0075] This embodiment further provides the following improved technical solution based on the above embodiment: linkage control of the route guidance system and the fire protection system.
[0076] The route guidance system is linked with the fire-fighting equipment in the building (such as automatic sprinkler systems and fire doors), channels can be closed / opened according to the fire situation, and evacuation routes can be adjusted to achieve "software and hardware collaboration" and improve the overall emergency response efficiency.
[0077] In addition, the digital twin model can simulate the status of firefighting equipment in real time to avoid path errors caused by equipment failure.
[0078] Example 7
[0079] This embodiment further provides the following improved technical solutions based on the above embodiments: a kinetic energy power generation device is embedded in the fill light module of the route guidance system to ensure that it can still operate during power outages. At the same time, a backup power supply and wireless charging module are designed to improve the reliability of the system in extreme environments.
[0080] Example 8
[0081] This embodiment further improves upon the previous embodiment by utilizing blockchain technology to implement evidence storage and traceability within the route guidance system. Key data from the evacuation process (such as route adjustment records and sensor status) is encrypted and stored using blockchain technology for post-event analysis and accountability, enhancing the system's credibility and legal compliance.
[0082] Example 8
[0083] Based on the above embodiments, this embodiment further makes the following improved technical solutions: the path planning module also includes a visualization unit and a manual intervention unit. The visualization unit includes a control center display screen for displaying a digital twin model of a public building and an evacuation path. The manual intervention unit adjusts the evacuation path based on the control instructions input by the control center display screen.
[0084] Within the digital twin model, the system calculates the optimal evacuation path in real time and simultaneously maps it to dynamic indicators in the physical space and on the large screens in the building management backend or fire command center. Through a 3D visualization interface, managers can intuitively view the real-time status of all dynamic indicators (such as direction and fault detection), achieving a closed-loop control of "virtual planning → physical execution → data feedback → dynamic optimization." Managers can manually adjust the path in the virtual model, and the physical dynamic indicators will respond immediately, such as manually blocking an area.
[0085] Furthermore, combining physical indicators with virtual information (e.g., AR glasses) can further enable multi-channel interaction. Virtual arrows and path prompts are superimposed on the user's AR device, creating a "virtual-real" navigation experience alongside physical dynamic indicators, providing more intuitive evacuation guidance.
[0086] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A route guidance system based on digital twin technology, characterized in that: include: A data acquisition module for collecting dynamic data inside public buildings, including smoke concentration, occupant distribution, and temperature; The model management module is used to update the status of the public building digital twin model in real time based on the collected dynamic data inside the public building; The path planning module is used to generate several evacuation routes based on the location of public building safety exits, installed exit capacity, and real-time dynamic data collected. The evacuation routes are modified in real time according to changes in dynamic data; a route indication module, which is used to control the rotation indication direction of the dynamic indicator according to the evacuation route planned by the path planning module; The dynamic indicator is set at the intersection of the internal passage of the building. The dynamic indicator includes an outer ring body and an indicator arrow housing. The outer ring body is provided with a rotating shaft, and the rotating shaft is connected to a driver. The driver is used to receive the control instructions of the route indication module and control the rotation of the rotating shaft. A first green light board is provided on one opposite side of the indicator arrow housing, a red light board is provided on the arrow side end face of the indicator arrow housing, and a second green light board is provided on the other side end face of the indicator arrow housing. A red annular lamp body is provided on the surface of the outer ring body on the arrow side of the indicator arrow housing, and a green annular lamp body is provided on the other side surface of the outer ring body 11.
2. A route guidance system based on digital twin technology according to claim 1, characterized in that: A fill light module is also provided in the indicator arrow housing, and the fill light module includes an electric push rod, a driving rack, a driving gear, a driven gear, a swing arm and a lamp body. The driving gear is fixedly mounted on the piston rod of the electric push rod, the driving rack is engaged with the driving gear, the driving gear is engaged with the driven gear, one end of the swing arm is fixedly mounted on the driven gear, and the lamp body is fixedly mounted on the swing arm.
3. The route guidance system based on digital twin technology according to claim 2, characterized in that: The fill light module further includes a light intensity sensor for detecting ambient brightness.
4. The route guidance system based on digital twin technology according to claim 2, characterized in that: A counterweight is provided on one side of the driving rack.
5. The route guidance system based on digital twin technology according to claim 4, characterized in that: The counterweight block is a roller-shaped structure, and the counterweight block is rotatably mounted on the driving rack, and the bottom of the counterweight block contacts the bottom surface of the inner cavity of the indicator arrow housing.
6. The route guidance system based on digital twin technology according to claim 1, characterized in that: The dynamic indicator further comprises a display frame, which is fixedly mounted on the top surface of the building, and symmetrically arranged display screens are provided on both sides of the display frame.
7. The route guidance system based on digital twin technology according to claim 6, characterized in that: The rotating shaft passes through the display frame.
8. The route guidance system based on digital twin technology according to claim 1, characterized in that: The route indication module includes a dynamic correction unit, which is used to generate evacuation path branches according to changes in the density of people on the evacuation path, and adjust the density of people on the evacuation path in real time so that it does not exceed a set threshold.
9. The route guidance system based on digital twin technology according to claim 1, characterized in that: The path planning module also includes a visualization unit and a manual intervention unit. The visualization unit includes a control center display screen for displaying a digital twin model of a public building and an evacuation path. The manual intervention unit adjusts the evacuation path based on the control instructions input by the control center display screen.