Railway platform safety gap protection device

Abstract

The utility model discloses a railroad platform safety gap protection device, and relates to the technical field of rail transit, and a laser detection assembly and a millimeter wave detection assembly are arranged on a platform door, so that the laser detection assembly can emit laser to a gap space between the platform door and a train; the laser detection assembly can generate laser point cloud data at the gap space after receiving the emitted laser, the millimeter wave detection assembly can emit millimeter waves to the gap space, and the millimeter wave detection assembly can generate millimeter wave point cloud data at the gap space after receiving the emitted millimeter waves. The data processing module can be in communication connection with the laser detection assembly and the millimeter wave detection assembly, so that the data processing module can judge whether an object invades and is detained in the clearance space or not according to the laser point cloud data; and risk judgment can be carried out on an object detained in the clearance space according to the millimeter wave point cloud data, so that the monitoring quality can be improved, and the phenomena of missing report and false report can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rail transit, and in particular to a railway platform safety gap protection device. BACKGROUND

[0002] Currently, the area between the railway platform door and the train carriage is commonly referred to as a "platform safety gap", which is a safety limit that must be strictly followed by passengers and staff, and any form of boundary crossing can have serious consequences.

[0003] In related technologies, a two-dimensional image information of the platform safety gap is usually captured by a camera, and then monitored by manual observation or directly using intelligent two-dimensional image recognition technology. However, using manual monitoring not only has high labor intensity and is prone to fatigue, but also is difficult to ensure high monitoring reliability for a long time, and has high labor costs. In addition, existing image recognition algorithms are easily affected by factors such as lighting conditions and characteristics of the measured object, and are difficult to achieve high-accuracy behavior recognition and state monitoring in complex and variable environments, thereby resulting in low monitoring quality and frequent false negatives and false positives. CONTENT OF THE UTILITY MODEL

[0004] The railway platform safety gap protection device provided by the embodiments of the present application can solve the technical problems of high cost of manual monitoring, low monitoring quality, and frequent false negatives and false positives.

[0005] In a first aspect, the embodiments of the present application provide a railway platform safety gap protection device, which comprises:

[0006] A laser detection component, which is arranged on the platform door, is configured to emit laser to the gap space between the platform door and the train, and receive reflected laser to generate laser point cloud data;

[0007] A millimeter wave detection component, which is arranged on the platform door, is configured to emit millimeter wave to the gap space between the platform door and the train, and receive reflected millimeter wave to generate millimeter wave point cloud data;

[0008] A data processing module, which is in communication connection with the laser detection component and the millimeter wave detection component, is configured to generate an alarm signal according to the laser point cloud data and the millimeter wave point cloud data.

[0009] In some embodiments, the data processing module comprises:

[0010] A power supply component, which is in electrical connection with the laser detection component and the millimeter wave detection component;

[0011] a processor electrically connected with the power component, the processor being in communication with the laser detection assembly and the millimeter wave detection assembly, and the processor being configured to generate the alarm signal based on the laser point cloud data and the millimeter wave point cloud data.

[0012] In some embodiments, the railway platform safety gap protection device comprises:

[0013] a data transmission module in communication with the data processing module;

[0014] a user terminal in communication with the data transmission module;

[0015] wherein, when the data processing module generates the alarm signal, the data transmission module is configured to transmit the alarm signal, the laser point cloud data and the millimeter wave point cloud data to the user terminal.

[0016] In some embodiments, the data transmission module comprises a network transmission chip in communication with the data processing module and the user terminal.

[0017] In some embodiments, the data transmission module comprises a storage chip, and when the alarm signal is generated, the storage chip is configured to store the laser point cloud data and the millimeter wave point cloud data.

[0018] In some embodiments, the railway platform safety gap protection device comprises a camera in communication with the data transmission module;

[0019] wherein, when the data transmission module sends the alarm signal, the data transmission module is configured to control the camera to capture the gap space between the platform door and the train, and to transmit the captured image information to the user terminal.

[0020] In some embodiments, the number of laser detection assemblies is N, N≥1; when N>1, the field angles of the plurality of laser detection assemblies complement each other, so that the field angles of the plurality of laser detection assemblies cover the gap space between the platform door and the train; and / or

[0021] the number of millimeter wave detection assemblies is M, M≥1; when M>1, the field angles of the plurality of millimeter wave detection assemblies complement each other, so that the field angles of the plurality of millimeter wave detection assemblies cover the gap space between the platform door and the train.

[0022] In some embodiments, the laser detection assembly comprises:

[0023] a first circuit board, the first circuit board being electrically connected to the data processing module;

[0024] a light source chip connected to the first circuit board, the light source chip being configured to emit laser light toward a gap between the platform door and the train;

[0025] An area array sensor is connected to the first circuit board and is used to receive laser light reflected from the gap space between the platform door and the train and generate the laser point cloud data.

[0026] In some embodiments, the laser detection assembly further comprises:

[0027] A fixing base, the fixing base being arranged on the first circuit board and having a first mounting hole and a second mounting hole, the first mounting hole being arranged toward the light source chip, and the second mounting hole being arranged toward the area array sensor;

[0028] a light source lens component, the light source lens component being disposed in the first mounting hole, and the laser light emitted from the light source chip being shaped by the light source lens component and then emitted toward the gap between the platform door and the train;

[0029] A receiving lens component is disposed in the second mounting hole, and the laser emitted from the gap space between the platform door and the train is converged by the receiving lens component and then emitted toward the area array sensor.

[0030] In some embodiments, the millimeter wave detection component includes:

[0031] a second circuit board, the second circuit board being electrically connected to the data processing module;

[0032] a millimeter wave sensor chip, wherein the millimeter wave sensor chip is connected to the second circuit board;

[0033] A transmitter and a receiver are provided on one of the second circuit board and the millimeter wave sensor chip, the transmitter is used to transmit millimeter waves to the gap space between the platform door and the train, and the receiver is used to receive millimeter waves reflected from the gap space between the platform door and the train.

[0034] The railway platform safety gap protection device according to the embodiment of the present application has at least the following beneficial effects:

[0035] By setting the laser detection assembly and the millimeter wave detection assembly on the platform door, the laser detection assembly can emit laser to the gap space between the platform door and the train, and after receiving the emitted laser, the laser detection assembly can generate laser point cloud data at the gap space, and the millimeter wave detection assembly can emit millimeter wave to the gap space, and after receiving the emitted millimeter wave, the millimeter wave detection assembly can generate millimeter wave point cloud data at the gap space, the data processing module can be in communication connection with the laser detection assembly and in communication connection with the millimeter wave detection assembly, so that the data processing module can judge whether there is an object invading and staying at the gap space according to the laser point cloud data, and the data processing module can also judge the risk of the object invading and staying at the gap space according to the millimeter wave point cloud data, and judge whether it has invasion risk, which can monitor the personnel and articles in the gap space in real time and autonomously, intelligently identify and actively alarm abnormal behaviors such as invasion and stay, without the need for manual participation, and can improve the monitoring quality and reduce the phenomenon of false negatives and false positives. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0037] Figure 1 A structural block diagram of a railway platform safety gap protection device provided by an embodiment of the present application;

[0038] Figure 2 A structural schematic diagram of a laser detection assembly provided by an embodiment of the present application.

[0039] Explanation of reference signs:

[0040] 10, laser detection assembly; 101, first circuit board; 102, light source chip; 103, area array sensor; 104, fixing seat; 1041, first mounting hole; 1042, second mounting hole; 105, light source lens component; 106, receiving lens component; 20, millimeter wave detection assembly; 30, data processing module; 301, power supply component; 302, processor; 40, data transmission module; 401, network transmission chip; 402, storage chip; 50, user terminal; 60, camera. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0042] At present, China's railway scale is huge, and a wide-ranging and reasonably structured railway network has been formed, with a total operating mileage of more than 160,000 kilometers, of which the operating mileage of high-speed rail exceeds 46,000 kilometers, ranking first in the world. Among them, the railway platform door as a key facility to ensure passenger safety and improve operational efficiency has been widely used in major train stations. With the progress of technology, the intelligent control system of the railway platform door also realizes the automatic opening and closing of the platform door, further improving the operational efficiency.

[0043] However, the existence of the railway platform door also introduces new safety risks. The space between the railway platform door and the train compartment is usually referred to as the "platform safety gap". This area may seem empty during train arrival and departure, but it actually hides a significant safety hazard. If personnel or objects inadvertently enter or stay in this area, it may cause serious harm when the train arrives or departs. First of all, for personnel, once the train starts, even if the speed is not fast, the strong traction and instantaneous airflow may suck the nearby personnel into the bottom of the train or hit them, causing serious life safety accidents. Secondly, for objects such as luggage and backpacks, if they are scratched or squeezed by the train, not only the objects themselves will be damaged, but also they may scatter due to impact, injuring other passengers or staff. In addition, during the train arrival process, due to the possible slight sway or misalignment between the train compartment and the platform, personnel or objects in this area may lose balance due to such small displacement, leading to falling or falling off the track, further exacerbating safety risks. Therefore, the area between the railway platform door and the train compartment is a safety area that passengers and staff must strictly adhere to, and any form of intrusion may cause serious harm.

[0044] In the prior art, a camera 60 is used to capture two-dimensional image information of the platform safety gap, and monitoring is performed through manual judgment or intelligent two-dimensional image recognition technology. However, using manual monitoring not only has high labor intensity and is prone to fatigue, making it difficult to ensure high monitoring reliability over a long period of time, but also has high labor costs. In addition, existing image recognition algorithms are easily affected by factors such as lighting conditions and object characteristics, making it difficult to achieve high-accuracy behavior recognition and state monitoring in complex and variable environments, resulting in low monitoring quality and frequent false positives and false negatives.

[0045] To solve the above technical problems, please refer to Figure 1The railway platform safety gap protection device provided by the embodiment of the application comprises a laser detection assembly 10, a millimeter wave detection assembly 20 and a data processing module 30. The laser detection assembly 10 and the millimeter wave detection assembly 20 can be arranged on a platform door. The laser detection assembly 10 can emit laser to the gap space between the platform door and a train. The laser detection assembly 10 can receive the emitted laser to generate laser point cloud data. The millimeter wave detection assembly 20 can emit millimeter wave to the gap space. The millimeter wave detection assembly 20 can receive the emitted millimeter wave to generate millimeter wave point cloud data. The data processing module 30 is communicatively connected with the laser detection assembly 10 and the millimeter wave detection assembly 20, so that the data processing module 30 can generate an alarm signal according to the laser point cloud data and the millimeter wave point cloud data.

[0046] Specifically, after the laser detection assembly 10 emits laser to the gap space, the objects in the gap space can reflect the laser. The laser detection assembly 10 can calculate the distance information of the measured objects according to the reflected laser. After the distance information is calibrated, the laser point cloud data is generated. That is, the two-dimensional or three-dimensional contour of the measured objects in the gap space between the platform door and the train and the distance information of the measured objects relative to the railway platform safety gap protection device can be described by the laser point cloud. The data processing module 30 can also obtain the dynamic characteristics of the measured objects, such as moving speed and action amplitude, by correlation calculation of multiple frames of point clouds, so as to judge whether there is an object invading and staying in the gap space.

[0047] The millimeter wave detection assembly 20 has the functions of moving object tracking and living body micro-motion detection. More specifically, the millimeter wave detection assembly 20 can emit millimeter wave to the gap space. The objects in the gap space can reflect the millimeter wave. The millimeter wave detection assembly 20 can generate millimeter wave point cloud data after receiving the emitted millimeter wave. The data processing module 30 can autonomously and in real time detect the position, speed and size range of the moving objects in the gap space and can also autonomously and in real time detect the micro-motion characteristics such as breathing and heart rate of the personnel in the gap space by correlation calculation of multiple frames of point clouds.

[0048] Therefore, the data processing module 30 can judge whether there is an object invading and staying in the gap space according to the laser point cloud data and can judge whether there is an invasion risk according to the millimeter wave point cloud data. The personnel and articles in the gap space can be autonomously and in real time monitored, and the abnormal behaviors such as invasion and staying can be intelligently identified and actively alarmed without human intervention. The monitoring quality can be improved, and the false negative and false positive phenomena can be reduced.

[0049] Optionally, the laser detection assembly 10 uses a near-infrared laser light source. The infrared laser is invisible to the human eye, so that the laser detection assembly 10 can normally work in the daily light environment and the dark environment, and the personnel will not be disturbed by the light, avoiding discomfort.

[0050] Optionally, the data processing module 30 can generate a pre-warning signal, a safety signal, etc. in addition to the alarm signal. The pre-warning signal indicates that there is an object in the gap space, but the object does not pose a threat to the train, for example, the intruding object is a plastic bag, paper, etc. The alarm signal indicates that a living object has intruded into the gap space, and the alarm signal can control the alarm to issue an alarm. The safety signal indicates that the object intruding into the gap space has left.

[0051] Optionally, the railway platform safety gap protection device can include an audible and visual electric alarm device. After the data processing module 30 identifies the intrusion risk, the alarm signal generated by the data processing module 30 can control the audible and visual electric alarm device to issue an alarm.

[0052] Please refer to Figure 1 In some embodiments, the data processing module 30 can include a power supply component 301 and a processor 302. The power supply component 301 can be electrically connected to the laser detection assembly 10 and the millimeter wave detection assembly 20. The processor 302 can be electrically connected to the power supply component 301. The processor 302 can be in communication with the laser detection assembly 10 and the millimeter wave detection assembly 20.

[0053] Specifically, by electrically connecting the laser detection assembly 10 and the millimeter wave detection assembly 20 to the power supply component 301 inside the data processing module 30, the laser detection assembly 10, the millimeter wave detection assembly 20, and the data processing module 30 can share the same power supply, making power supply convenient.

[0054] The processor 302 is in communication with the laser detection assembly 10 and the millimeter wave detection assembly 20, which can facilitate the reception of laser point cloud data and millimeter wave point cloud data, so that the processor 302 can generate an alarm signal based on the laser point cloud data and the millimeter wave point cloud data.

[0055] Please refer to Figure 1 In some embodiments, the railway platform safety gap protection device includes a data transmission module 40 and a user terminal 50. The data transmission module 40 can be in communication with the data processing module 30, and the user terminal 50 can be in communication with the data transmission module 40. When the data processing module 30 generates an alarm signal, the data transmission module 40 can transmit the laser point cloud data and the millimeter wave point cloud data to the user terminal 50.

[0056] Specifically, the user terminal 50 can be like a system host, server, etc., and when the data processing module 30 detects that an abnormality occurs at the gap space, such as an object or personnel intrusion, the data transmission module 40 can transmit the laser point cloud data and millimeter wave point cloud data at this time to the user terminal 50, and at the same time issue an alarm, which can remind the staff to view the laser point cloud data and millimeter wave point cloud data at the user terminal 50, so that the staff can make a judgment according to the laser point cloud data and millimeter wave point cloud data. Therefore, the data transmission module can provide laser point cloud images, millimeter wave point cloud images and living body micro-motion information in the gap space in real time according to user needs.

[0057] Referring to Figure 1 In some embodiments, the data transmission module 40 can include a network transmission chip 401, which can be in communication connection with the data processing module 30 and the user terminal 50.

[0058] Specifically, the network transmission mode of the network transmission chip 401 includes but is not limited to Ethernet, wifi, Bluetooth, ZigBee, LoRa, NB-IoT, LTE and WSN, etc. Among them, ZigBee, also known as purple bee, is a low-speed short-distance transmission wireless network protocol; LoRa is a long-distance low-power radio technology standard; NB-IoT stands for Narrow Band Internet of Things, which is Chinese for Narrow Band Internet of Things; LTE stands for Long Term Evolution, which is Chinese for Long Term Evolution; WSN stands for Wireless Sensor Networks, which is Chinese for Wireless Sensor Networks. Through the network transmission chip 401, wireless transmission of laser point cloud data and millimeter wave point cloud data can be realized, and data transmission can be very convenient.

[0059] Referring to Figure 1 In some embodiments, the data transmission module 40 can also include a storage chip 402, which can store laser point cloud data and millimeter wave point cloud data when the data processing module 30 generates an alarm signal, for the convenience of staff to view at any time.

[0060] Referring to Figure 1 In some embodiments, the railway platform safety gap protection device can include a camera 60, which can be in communication connection with the data transmission module 40, and when the data transmission module 40 sends an alarm signal, the data transmission module 40 can control the camera 60 to shoot the gap space between the platform door and the train, and transmit the photographed image information to the user terminal 50.

[0061] Optionally, when the data transmission module 40 transmits the alarm signal, the data transmission module 40 can control the camera 60 to take a picture of the gap space, and can transmit the image information, the laser point cloud data and the millimeter wave point cloud data to the user terminal 50 according to the user's demand, so that the user can view the real situation on the spot by controlling the camera 60 to take a picture.

[0062] In some embodiments, the number of laser detection assemblies 10 is N, N≥1, when N>1, the field of view angles of the plurality of laser detection assemblies 10 can complement each other, that is, the field of view angles of two adjacent laser detection assemblies 10 partially overlap, so that the field of view angles of the plurality of laser detection assemblies 10 can cover the gap space between the platform door and the train, so that the railway platform safety gap protection device has no monitoring blind area.

[0063] Similarly, the number of millimeter wave detection assemblies 20 is M, M≥1, when M>1, the field of view angles of the plurality of millimeter wave detection assemblies 20 can complement each other, that is, the field of view angles of two adjacent millimeter wave detection assemblies 20 partially overlap, so that the field of view angles of the plurality of millimeter wave detection assemblies 20 can cover the gap space between the platform door and the train, so that the railway platform safety gap protection device has no monitoring blind area.

[0064] Please refer to Figure 2 In some embodiments, the laser detection assembly 10 can include a first circuit board 101, a light source chip 102 and a surface array sensor 103, the first circuit board 101 can be electrically connected with the data processing module 30, the light source chip 102 is connected to the first circuit board 101, the light source chip 102 can emit laser to the gap space between the platform door and the train, the surface array sensor 103 can be connected to the first circuit board 101, and the surface array sensor 103 can receive the laser emitted from the gap space, and the surface array sensor 103 is used to generate laser point cloud data.

[0065] Specifically, the light source chip 102 can be welded on the first circuit board 101, the number of laser light sources on the light source chip 102 is greater than or equal to 1, and the laser light source includes but is not limited to VCSEL, EEL and the like, wherein VCSEL is the English full name of Vertical-Cavity Surface-Emitting Laser, which is the Chinese translation of vertical-cavity surface-emitting laser, EEL is the English full name of Edge-Emitting Laser, which is the Chinese translation of edge-emitting laser, and the wavelength of the laser light source includes but is not limited to 808nm, 850nm, 905nm, 940nm and the like.

[0066] The area array sensor 103 can also be welded on the first circuit board 101, and the area array sensor 103 includes but is not limited to an iToF (Indirect ToF) sensor, a dToF (Direct ToF) sensor, etc., and the area array sensor 103 can output laser point cloud data after photoelectric conversion, and laser point cloud data can be conveniently generated by receiving the emitted laser through the area array sensor 103.

[0067] Please refer to Figure 2 In some embodiments, the laser detection assembly 10 can further include a fixing seat 104, a light source lens component 105, and a receiving lens component 106, the fixing seat 104 can be arranged on the first circuit board 101, and the fixing seat 104 has a first mounting hole 1041 and a second mounting hole 1042, the first mounting hole 1041 is arranged towards the light source chip 102, and the second mounting hole 1042 is arranged towards the area array sensor 103.

[0068] The light source lens component 105 is arranged in the first mounting hole 1041, so that the light source lens component 105 can cover the light source chip 102, and the laser emitted by the light source chip 102 is shaped through the light source lens component 105 and then shot towards the gap space between the platform door and the train, the light source lens component 105 can shape the laser into a surface / line / point light source, and the energy distribution of the shaped laser beam is more uniform.

[0069] The receiving lens component 106 can be arranged in the second mounting hole 1042, so that the receiving lens component 106 can cover the area array sensor 103, and the laser emitted from the gap space is converged through the receiving lens component 106 and then shot towards the area array sensor 103, and the receiving lens component 106 can converge the laser beam to focus the laser on the sensitive area of the area array sensor 103.

[0070] Optionally, the light source lens component 105 can be a single lens, a wave mirror, or an optical diffusion sheet, etc., and the light source lens component 105 can also be a lens group composed of multiple lenses, and the lens material includes but is not limited to glass, PC (polycarbonate), PMMA (polymethyl methacrylate), etc.

[0071] Similarly, the receiving lens component 106 can also be a single lens, or a lens group composed of multiple lenses, and the receiving lens component 106 can also be additionally provided with a filter, and the filter can reduce the light intensity reaching the area array sensor 103, thereby prolonging the service life of the area array sensor 103.

[0072] In some other embodiments, the laser detection assembly 10 can have a second implementation scheme, and the laser detection assembly 10 can include a control unit, a pulse driving circuit, a laser, a transmitting light path, a receiving light path, a photoelectric device, a return signal processing circuit and a timing unit, the control unit can be connected with the pulse driving circuit, the pulse driving circuit can be connected with the laser, wherein the control unit can control the pulse driving circuit to drive the laser to generate pulsed laser, the pulsed laser is emitted to the gap space after being collimated and formed into a circular or rectangular light spot by the transmitting light path, the emitted laser is received by the photoelectric device after being converged by the receiving light path, the photoelectric device can be connected with the return signal processing circuit, the return signal processing circuit can collect the current or voltage signal output by the photoelectric device and convert it into a digital signal or an analog signal, the return signal processing circuit can also be connected with the timing unit, the timing unit converts the digital signal or the analog signal input by the return signal processing circuit into time information, and the control unit can calculate distance information according to the time information.

[0073] In some embodiments, the millimeter wave detection assembly 20 can include a second circuit board and a millimeter wave sensor chip, the second circuit board can be electrically connected with the data processing module 30, and the millimeter wave sensor chip can be connected to the second circuit board, wherein one of the second circuit board and the millimeter wave sensor chip is provided with a transmitter and a receiver, the transmitter is used to emit millimeter waves to the gap space, and the receiver is used to receive millimeter waves reflected from the gap space.

[0074] Specifically, the millimeter wave detection assembly 20 can use external transceiving antennas on the second circuit board as the transmitter and the receiver, or use transceiving antennas inside the millimeter wave sensor chip as the transmitter and the receiver, so as to reduce the failure rate.

[0075] Optionally, the sweep frequency specification of the millimeter wave sensor chip can be 24 GHz, 60 GHz or 77 GHz, and the number of transceiving antennas on the millimeter wave sensor chip can be one-to-many or many-to-many.

[0076] In the drawings of the embodiments, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “upper”, “lower”, “left”, “right” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, and for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0077] The above only describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A railway platform safety gap guard characterized by, Comprising: a laser detection assembly (10) for being arranged on a platform door, the laser detection assembly (10) is used to emit laser to the gap space between the platform door and a train, and receive reflected laser to generate laser point cloud data; a millimeter wave detection assembly (20) for being arranged on the platform door, the millimeter wave detection assembly (20) is used to emit millimeter wave to the gap space between the platform door and the train, and receive reflected millimeter wave to generate millimeter wave point cloud data; a data processing module (30) in communication connection with the laser detection assembly (10) and the millimeter wave detection assembly (20), used to generate an alarm signal according to the laser point cloud data and the millimeter wave point cloud data.

2. A railway platform safety gap guard according to claim 1, characterised in that, The data processing module (30) comprises: a power supply component (301) in electrical connection with the laser detection assembly (10) and the millimeter wave detection assembly (20); a processor (302) in electrical connection with the power supply component (301), the processor (302) is in communication connection with the laser detection assembly (10) and the millimeter wave detection assembly (20), and the processor (302) is used to generate the alarm signal according to the laser point cloud data and the millimeter wave point cloud data.

3. The railway platform safety gap guard of claim 1, wherein, The railway platform safety gap protection device comprises: a data transmission module (40) in communication connection with the data processing module (30); a user terminal (50) in communication connection with the data transmission module (40); wherein, when the data processing module (30) generates the alarm signal, the data transmission module (40) is used to transmit the alarm signal, the laser point cloud data and the millimeter wave point cloud data to the user terminal (50).

4. A railway platform safety gap guard according to claim 3, characterised in that, The data transmission module (40) comprises a network transmission chip (401) in communication connection with the data processing module (30) and the user terminal (50).

5. A railway platform safety gap guard according to claim 4, characterised in that, The data transmission module (40) comprises a storage chip (402), which is used to store the laser point cloud data and the millimeter wave point cloud data when the alarm signal is generated.

6. The railway platform safety gap guard of claim 3, wherein, The railway platform safety gap protection device comprises a camera (60) in communication connection with the data transmission module (40); wherein, when the data transmission module (40) sends the alarm signal, the data transmission module (40) is used to control the camera (60) to shoot the gap space between the platform door and the train, and transmit the shot image information to the user terminal (50).

7. The railway platform safety gap protection device according to claim 1, wherein: The number of the laser detection assemblies (10) is N, N≥1; when N>1, the field angles of the plurality of laser detection assemblies (10) are complementary to each other, so that the field angles of the plurality of laser detection assemblies (10) cover the gap space between the platform door and the train; and / or The number of the millimeter wave detection assemblies (20) is M, M≥1; when M>1, the field angles of the plurality of millimeter wave detection assemblies (20) are complementary to each other, so that the field angles of the plurality of millimeter wave detection assemblies (20) cover the gap space between the platform door and the train.

8. The railroad platform safety gap guard of claim 1, wherein, The laser detection assembly (10) comprises: a first circuit board (101) electrically connected with the data processing module (30); a light source chip (102) connected to the first circuit board (101), the light source chip (102) being configured to emit laser to the gap space between the platform door and the train; a planar array sensor (103) connected to the first circuit board (101), the planar array sensor (103) being configured to receive laser reflected from the gap space between the platform door and the train and generate the laser point cloud data.

9. A railway platform safety gap guard as claimed in claim 8, characterised in that, The laser detection assembly (10) further comprises: a fixing seat (104) provided on the first circuit board (101), the fixing seat (104) having a first mounting hole (1041) and a second mounting hole (1042), the first mounting hole (1041) being arranged towards the light source chip (102), and the second mounting hole (1042) being arranged towards the planar array sensor (103); a light source lens component (105) arranged in the first mounting hole (1041), the laser emitted from the light source chip (102) being shaped by the light source lens component (105) and then emitted to the gap space between the platform door and the train; a receiving lens component (106) arranged in the second mounting hole (1042), the laser emitted from the gap space between the platform door and the train being converged by the receiving lens component (106) and then emitted to the planar array sensor (103).

10. The railroad platform safety gap guard of claim 1, wherein, The millimeter wave detection assembly (20) comprises: a second circuit board electrically connected with the data processing module (30); a millimeter wave sensor chip connected to the second circuit board; wherein one of the second circuit board and the millimeter wave sensor chip is provided with a transmitter and a receiver, the transmitter being configured to emit millimeter wave to the gap space between the platform door and the train, and the receiver being configured to receive millimeter wave reflected from the gap space between the platform door and the train.

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