Passenger emergency alarm for rail transit
By integrating design and using Bluetooth Auracast modules, the problems of barrier-free communication and high cost of emergency alarm devices for rail transit passengers have been solved, enabling convenient broadcast signal reception and flexible installation, and improving the aesthetics and space utilization of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANNAX SUZHOU RAIL SYST
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-05
AI Technical Summary
Existing emergency alarm systems for rail transit passengers suffer from problems such as insufficient barrier-free communication experience, complex and costly system deployment, large device size, and low integration.
It adopts an integrated design, integrating functional modules such as display screen, glass panel, control board module, speaker, camera component, microphone, and light sensor together, and uses Bluetooth Auracast module as wireless antenna to directly transmit audio stream to hearing aids, eliminating the need for complex antenna coil network coverage.
It enables hearing-impaired passengers to receive broadcast signals without complicated operations, reduces installation and maintenance costs, improves space utilization and aesthetics, and adapts to different vehicle layouts.
Smart Images

Figure CN224328442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vehicle alarm devices, and in particular to a passenger emergency alarm device for rail transit. Background Technology
[0002] With the development of rail transit, more and more systems are adopting digital systems, and train broadcasting systems are no exception. The passenger emergency alarm on rail transit is a core component of the train broadcasting system, and is an essential tool for communication between the driver and passengers, and between passengers and the control center.
[0003] Existing emergency alarm systems have the following technical defects:
[0004] Insufficient accessibility communication experience: Traditional alarms mainly rely on wired broadcasts or fixed speakers. Hearing-impaired passengers (such as those wearing hearing aids) have difficulty receiving train broadcast information directly and need to rely on visual cues or additional pairing devices, which is complicated to operate and cannot meet the needs of accessible passage.
[0005] The system is complex to deploy and costly: Existing solutions usually require a complex antenna coil network to be laid out in the carriage to achieve broadcast signal coverage, resulting in high installation and maintenance costs, and it is difficult to flexibly adapt to different vehicle models or carriage layouts.
[0006] Large size and low integration: Traditional alarms have a loose structure, with each functional module (such as camera, microphone, display screen, etc.) installed independently, resulting in a large overall size that affects the aesthetics of the carriage and the space utilization rate.
[0007] Therefore, there is an urgent need for a new type of emergency alarm device for rail transit passengers to solve the above problems. Utility Model Content
[0008] The purpose of this invention is to provide a passenger emergency alarm device for rail transit that is small in size, easy to install and use, aesthetically pleasing, and can improve the speed at which hearing-impaired passengers receive broadcast signals on rail transit vehicles.
[0009] To achieve the above objectives, the present invention provides the following technical solution:
[0010] An emergency alarm device for passengers in rail transit includes: a panel bracket for supporting a display screen, a glass panel, and a control board module, wherein the display screen is fixed to the back of the display area of the glass panel and connected to the control board module via an FPC flexible flat cable;
[0011] The panel bracket is mounted on the rear cover plate via an intermediate bracket;
[0012] The control board module integrates a speaker, camera assembly, microphone, light sensor, and indicator lights.
[0013] An antenna for wireless signal transmission is attached to the inside of the glass panel. The antenna selects the Bluetooth Auracast module to receive information broadcasts and simultaneously transmit audio streams to the passenger's hearing aids or Bluetooth headsets.
[0014] Preferably, the display screen and the glass panel are fixedly connected by a full-lamination method.
[0015] Preferably, the display area of the glass panel is made of transparent tempered glass, and the non-display area is a non-transparent ink layer formed by filling ink.
[0016] Preferably, the panel support is provided with an outlet hole that allows the speaker, camera assembly, microphone, and indicator light to be routed to the glass panel.
[0017] Preferably, the indicator lights include status indicator lights and intercom indicator lights, and the light sensor is an ambient light sensor.
[0018] Preferably, it also includes an emergency alarm button, which is connected to the control board module via a 2-pin plug and passes through the intermediate bracket, panel bracket, and pre-drilled holes in the glass panel to the outside of the glass panel.
[0019] Preferably, the intermediate bracket is provided with positioning posts and locking holes corresponding to the control board assembly.
[0020] Preferably, the camera assembly uses a wide-angle lens, with the lens axis arranged at a 5-15° tilt angle to the glass panel.
[0021] Preferably, the inner side of the rear cover plate 8 is provided with an EMI shielding layer.
[0022] The beneficial effects of this utility model are:
[0023] This utility model discloses a passenger emergency alarm for rail transit. It integrates a display screen, glass panel, control board module, panel bracket, antenna, speaker, camera assembly, microphone, light sensor, and indicator lights to form the alarm. Compared to existing technologies, this utility model is smaller, improving space utilization and aesthetics in the carriage. By adding a Bluetooth module as a wireless antenna, it solves the problem that hearing-impaired passengers in existing technologies need to rely on visual cues or additional pairing devices to hear broadcast information on rail transit vehicles. This allows hearing-impaired passengers to hear broadcast signals without complex operations, meeting the needs of barrier-free access. Furthermore, the design of this Bluetooth antenna eliminates the need for a complex antenna coil network to cover broadcast signals within the rail transit vehicle carriage, reducing installation and maintenance costs and enhancing the alarm's flexible application. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of a passenger emergency alarm device for rail transit according to this utility model;
[0025] Figure 2 The diagram shown is an exploded view of a passenger emergency alarm device for rail transit.
[0026] Figure 3 This is a front view of a passenger emergency alarm device for rail transit.
[0027] The components in the attached diagram are labeled as follows:
[0028] 1. Emergency alarm button; 2. Glass panel; 3. Antenna; 4. Panel bracket; 5. Speaker; 6. Camera assembly; 7. Control board module; 8. Rear cover; 9. Electrical interface; 10. Microphone; 11. Middle bracket; 12. Display screen; 13. Light sensor; 14. Status indicator light; 15. Intercom indicator light; 16. Left channel microphone; 17. Right channel microphone. Detailed Implementation
[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0030] Example:
[0031] This embodiment describes the structure of a passenger emergency alarm device for rail transit.
[0032] like Figure 1 , 2 As shown, Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of a passenger emergency alarm device for rail transit according to this utility model. Figure 2 This is an exploded view of a passenger emergency alarm device for rail transit. The passenger emergency alarm device for rail transit includes: a panel bracket 4 for supporting a display screen 12, a glass panel 2, and a control panel module 7;
[0033] The back of the glass panel 2 is partially filled with ink to form a non-transparent area, which is also a non-display area. The area without ink filling constitutes the display area. The display screen 12 is fixed to the back of the display area of the glass panel 2.
[0034] An antenna 3 is attached to the inner side of the glass panel 2 for wireless signal transmission. In a preferred embodiment, the antenna 3 selects a Bluetooth Auracast module to receive broadcast information and simultaneously transmits audio streams to passengers' hearing aids or Bluetooth headsets, enabling passengers to access the broadcast signals on the rail transit vehicle. This Bluetooth module allows a single audio source device (such as a broadcast device on the rail transit vehicle) to wirelessly transmit audio streams to multiple receiving devices, such as headsets, hearing aids, or speakers, simultaneously. Receiving devices do not need to pair with the transmitter; they only need to scan and join the Auracast broadcast channel, improving accessibility and making it more convenient and timely for passengers with hearing aids to receive broadcast information.
[0035] The panel bracket 4 is mounted on the rear cover plate 8 via the intermediate bracket 11, thereby forming a complete and sealed protective structure.
[0036] A control board module 7 is mounted on the panel bracket 4, with the intermediate bracket supporting the control board assembly. The control board module integrates data processing circuitry, a camera assembly 6, a microphone 10, a light sensor 13, indicator lights, etc. The display screen 12 is fixed to the back of the display area of the glass panel 2 and connected to the control board module 7 via an FPC flexible cable. The emergency alarm button has two wires leading out and a 2-pin connector assembled; a 2-pin socket is provided on the control board module, and the connector from the emergency alarm button is inserted into the 2-pin socket on the control board module. An electrical interface 9 is located on the control board module for external power and signal input.
[0037] The panel bracket 4 serves as the mounting carrier for the display screen 12, glass panel 2, and control board module 7. The intermediate bracket 11 is equipped with positioning posts and locking holes corresponding to the control board assembly 7 to realize the assembly of each functional component.
[0038] It also includes an emergency alarm button 1, which is used by passengers in the carriage to initiate an alarm request in an emergency. The emergency alarm button is connected to the control board module 7 via a 2-pin plug, and holes for the emergency alarm button 1 are reserved on the intermediate bracket 11, the panel bracket 4, and the glass panel 2.
[0039] The panel bracket 4 is also provided with an output hole that allows the camera component 6, indicator lights, etc. to be output to the glass panel 2, so as to display the position of each corresponding functional component on the glass panel.
[0040] In terms of usage, this passenger emergency alarm is highly integrated, smaller and lighter in overall size, and can be flexibly installed on the inner wall of the carriage or in the required location.
[0041] In the preferred embodiment, the rail transit passenger emergency alarm incorporates Bluetooth wireless technology, enabling hearing-impaired passengers (such as those wearing hearing aids) to directly receive broadcast signals from the rail transit vehicle, making signal reception more convenient. Furthermore, it eliminates the need for complex antenna coil layouts on the carriages to achieve broadcast signal coverage; the passenger emergency alarm can be directly installed in the required carriage location, offering greater flexibility and reducing installation difficulty and maintenance costs.
[0042] To enhance the convenience and aesthetics of the passenger emergency alarm system within the train carriage, this invention securely connects the display screen 12 to the glass panel 2 using a fully laminated connection. This tight fit effectively prevents dust ingress and ensures a clear display. The display screen can be an AMOLED screen, which is connected to the control board module via an FPC flexible cable. This display screen can be used to display images, videos, and other information.
[0043] like Figure 3 As shown, Figure 3 This is a front view of a passenger emergency alarm device for rail transit.
[0044] In a preferred embodiment, the camera assembly 6 has a pre-installed plug that connects to the socket of the control board module 7. The camera assembly 6 uses a wide-angle lens with the lens axis arranged at a 5-15° tilt angle to the glass panel, which can capture images of the interior of the carriage over a wide range during alarm calls.
[0045] In a preferred embodiment, microphone 10 is a patch assembly mounted on control board module 7. Due to the relatively noisy environment inside the carriage, to ensure clearer sound acquisition of passengers' voices, microphone 10 uses a digital microphone to collect passenger voices. Digital microphones offer better noise immunity compared to traditional microphones. Furthermore, to ensure the integrity of the acquired sound signal, the microphone includes a left-channel microphone 16 and a right-channel microphone 17.
[0046] In a preferred embodiment, the indicator lights are surface-mount LED beads, mounted on the control module 7. A light guide post is pre-installed on the glass panel 2, with the end of the light guide post resting against the LED bead, displaying the indicator light effect on the glass panel. The indicator lights include a status indicator light 14 and an intercom indicator light 15. The light sensor 13 is an ambient light sensor, used to adjust the panel brightness according to changes in ambient light.
[0047] In a preferred embodiment, an EMI shielding layer is provided on the inner side of the rear cover plate 8, and heat dissipation fins are provided on the outer side. The EMI shielding layer has the function of preventing external electromagnetic waves from interfering with the internal circuit of the alarm, or preventing internal signal leakage from interfering with other equipment.
[0048] This utility model discloses a passenger emergency alarm for rail transit, which is assembled using full-fit technology, integrating all functional components into the alarm. Compared with existing alarm products, the overall structure is smaller, improving space utilization and the aesthetics of the carriage. By adding a Bluetooth module as a wireless antenna, it solves the problem that in existing technologies, hearing-impaired passengers need to rely on visual cues or additional pairing devices to hear broadcast information on rail transit vehicles. This allows hearing-impaired passengers to hear broadcast signals without complicated operations, meeting the needs of barrier-free access. Moreover, the design of this Bluetooth antenna eliminates the need for a complex antenna coil network to achieve broadcast signal coverage within the rail transit vehicle carriage, reducing installation and maintenance costs and enhancing the flexible application of the alarm.
[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A passenger emergency alarm for rail transit, characterized in that, include: A panel bracket (4) is used to support the display screen (12), the glass panel (2), and the control board module (7). The display screen (12) is fixed on the back of the display area of the glass panel (2) and connected to the control board module (7) via an FPC flexible cable. The panel bracket (4) is mounted on the rear cover plate (8) via the intermediate bracket (11); The intermediate bracket (11) supports the control board module (7), which integrates a speaker (5), a camera assembly (6), a microphone (10), a light sensor (13), and an indicator light. An antenna (3) for wireless signal transmission is attached to the inner side of the glass panel (2). The antenna (3) selects the Bluetooth Auracast module to receive information broadcasts and simultaneously transmits audio streams to the passenger's hearing aids.
2. The passenger emergency alarm device for rail transit according to claim 1, characterized in that: The display screen (12) and the glass panel (2) are fixedly connected by a full-lamination method.
3. The passenger emergency alarm device for rail transit according to claim 1, characterized in that: The display area of the glass panel (2) is made of transparent tempered glass, and the non-display area is a non-transparent ink layer formed by filling ink.
4. The passenger emergency alarm device for rail transit according to claim 1, characterized in that: The intermediate bracket (11) is provided with an outlet hole that allows the camera assembly (6) and indicator light to be led out to the glass panel.
5. The passenger emergency alarm device for rail transit according to claim 1, characterized in that: The indicator lights include a status indicator light (14) and an intercom indicator light (15), and the light sensor (13) is an ambient light sensor.
6. A passenger emergency alarm device for rail transit according to claim 1, characterized in that: It also includes an emergency alarm button (1), which is connected to the control board module (7) via a 2PIN plug and passes through the holes reserved in the intermediate bracket (11), panel bracket (4), and glass panel (2) to the outside of the glass panel (2).
7. A passenger emergency alarm device for rail transit according to claim 1, characterized in that: The intermediate bracket (11) is provided with positioning posts and locking holes corresponding to the control board module (7).
8. A passenger emergency alarm device for rail transit according to claim 1, characterized in that: The camera assembly (6) uses a wide-angle lens, and the lens axis is arranged at a 5-15° tilt angle with the glass panel.
9. A passenger emergency alarm device for rail transit according to claim 1, characterized in that: An EMI shielding layer is provided on the inner side of the rear cover plate (8).