Driver's cab video monitoring system, method and train

Abstract

The present invention provides a driver's cab video monitoring system, method and train, comprising: a video monitoring camera device and a video alarm device installed in the driver's cab; the video alarm device is connected in series with the train's emergency braking loop; the video monitoring camera device is used to capture images of the driver while driving, and identify the driver's working status based on the captured images. If the driver is in a fatigued state or the driver's actions are not in compliance with the regulations, an alarm signal is sent to the video alarm device; after the video alarm device recognizes the alarm signal, an emergency braking application instruction is executed, the train's emergency braking loop is disconnected, and the train performs emergency braking.

Description

Technical Field

[0001] The present invention belongs to the technical field of driver's cab video monitoring, and in particular relates to a driver's cab video monitoring system, method and train. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Vehicles (such as rail transit trains) are required to undergo dynamic commissioning tests before leaving the factory. During this dynamic commissioning, if the driver performs operations that do not comply with safety regulations, for example, if the driver is fatigued or the driver's actions are not in accordance with regulations, this will affect the dynamic commissioning results of the entire vehicle, and it will be impossible to ensure that all vehicles leaving the factory meet safety standards.

[0004] Currently, monitoring of the driver's driving operations during dynamic debugging tests is mainly based on monitoring by management personnel or remote monitoring using camera equipment to capture images. However, the above methods cannot accurately identify the driver's driving operations. At the same time, if the driver makes an erroneous operation, the safety of dynamic debugging cannot be ensured. Summary of the Invention

[0005] In order to solve the above problems, the present invention proposes a driver's cab video monitoring system, which can improve the safety of dynamic debugging.

[0006] According to some embodiments, the present invention adopts the following technical solutions:

[0007] In a first aspect, a driver's cab video monitoring system is disclosed, comprising:

[0008] Video surveillance camera and video alarm device installed in the driver's cab;

[0009] The video alarm device is connected in series with the train emergency brake loop;

[0010] The video surveillance camera device is used to capture images of the driver while driving, and identify the driver's working status based on the captured images. If the driver is in a fatigued state or the driver's movements are not in compliance with the regulations, an alarm signal is sent to the video alarm device;

[0011] The video alarm device executes the emergency brake application instruction after identifying the alarm signal, the train emergency brake loop is disconnected, and the train performs emergency braking.

[0012] As a further technical solution, the system further includes: a video recording device installed in the driver's cab, the video recording device communicates with the video surveillance camera device, and the video recording device records the images captured by the video surveillance camera device in real time.

[0013] As a further technical solution, the system also includes a power supply device to supply power to the video surveillance camera device, the video alarm device and the video recording device respectively.

[0014] As a further technical solution, the power supply device can use vehicle-mounted AC220V, AC380V or DC110V,

[0015] As a further technical solution, the video alarm device includes two normally closed switches connected in series in the train emergency brake loop. After recognizing the alarm signal sent by the video surveillance camera device, the two normally closed switches are disconnected;

[0016] When communication is not established between the video surveillance camera device and the video alarm device, the two normally closed switches remain normally open, thereby preventing the train emergency braking safety circuit from being established.

[0017] As a further technical solution, the video surveillance camera device and the video alarm device communicate with each other via a wireless network or a wired network.

[0018] As a further technical solution, the alarm signal between the video surveillance camera device and the video alarm device is sent in the form of an electrical signal.

[0019] As a further technical solution, after the video alarm device recognizes the alarm signal, it also emits a buzzer sound to give an alarm prompt and records the alarm time information.

[0020] In a second aspect, a driver's cab video monitoring method is disclosed, comprising:

[0021] Collect images of the driver while driving and identify the driver's working status based on the collected images. If the driver is fatigued or the driver's movements are not in compliance with the regulations, an alarm signal will be sent;

[0022] After the alarm signal is recognized, the emergency brake application command is executed, the train emergency brake loop is disconnected, and the train performs emergency braking.

[0023] In a third aspect, a train is disclosed, comprising a driver's cab, wherein the driver's cab is equipped with the above-mentioned video surveillance system, and the driver's operation is monitored by using the above-mentioned video surveillance system.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The technical solution of the present invention uses image recognition technology to monitor abnormal driver operations and then provide prompts and send alarm signals to brake the train, thereby combining driver operations with train operation safety to ensure train operation safety.

[0026] The technical solution of the present invention records the entire process of the driver's operation through video. When an abnormal operation by the driver occurs, the execution time of the alarm signal is recorded, and a buzzer prompt can be given and the train emergency brake can be applied.

[0027] Advantages of additional aspects of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0030] Figure 1 This is a schematic diagram of the technical solution method flow of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall system architecture of the technical solution of the present invention;

[0032] Figure 3 This is a schematic diagram of the module structure of the driver's cab video monitoring system of the technical solution system of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] Example 1:

[0037] In this embodiment, the driver's cab video surveillance system for dynamic commissioning tests within a rail transit train factory is used as an example for illustration. However, this does not mean that the driver's cab video surveillance system provided by the present invention is only applicable to dynamic commissioning tests within a rail transit train factory. It can also be applied to video surveillance of other vehicles depending on different application scenarios.

[0038] In this embodiment, a driver's cab video monitoring system is disclosed, which consists of four parts: a video monitoring camera device installed in the driver's cab, a video alarm device, a video recording device and a power supply device.

[0039] The video surveillance camera is installed in front of the driver where it can capture the driver's upper body; the video alarm device and video recording device are placed in appropriate positions.

[0040] See attached Figure 3 As shown, the video surveillance camera device consists of a communication module, a camera module, and an image recognition and processing module; the video alarm device consists of a communication module, an emergency brake trigger module, and a buzzer alarm module; and the video recording device consists of a communication module, a video recording module, and a display module.

[0041] Its specific working principle is as follows:

[0042] The video surveillance camera device, the video alarm device, and the video recording device establish communication through their respective internal communication modules. If communication cannot be established, the two normally closed points inside the emergency brake trigger module remain disconnected. If communication is established among the three, the two normally closed points inside the emergency brake trigger module are closed. The video surveillance camera device captures the driver's status through the camera module and sends it to the image recognition processing module. The image recognition processing module analyzes the sent image information to determine whether the driver has any dangerous operations and behaviors. If so, the instruction to apply emergency braking is sent to the video alarm device through the video surveillance camera device communication module, and the emergency brake trigger module and the buzzer alarm module are triggered, so that the train applies emergency braking and sounds a buzzer alarm. At the same time, the video alarm device sends the time when the emergency brake is applied to the video recording device. The video recording device records the image information sent by the video surveillance camera device in real time. The display module in the video recording device can display the communication status between the three devices, view alarm records, and view video records.

[0043] See attached Figure 2As shown, the video alarm device is connected in series with the train emergency brake loop; the power supply device provides power to the video surveillance camera device and the video alarm and video recording device; the video surveillance camera device is placed in front of the driver to shoot the driver's upper body; when the video surveillance camera device recognizes through images that the driver is in a fatigue state (for example: yawning several times in succession) or the driver's movements are not in accordance with the norm (for example: the driver stands while driving), etc., the video alarm device will emit a buzzer prompt to give an alarm prompt and record the alarm time; the video alarm device will simultaneously execute the emergency braking command to make the train apply emergency braking.

[0044] When the video surveillance camera device does not detect any abnormal operation of the driver through image recognition, it only monitors and records the driver's operation and records it in real time through the video recording device.

[0045] The video surveillance camera device can use existing image recognition algorithms to identify the driver's status based on the collected driver pictures, and determine whether he is in a fatigued state or his movements are not in accordance with the norm.

[0046] When the video surveillance camera device detects abnormal operation of the driver through image recognition, the video surveillance camera device in the driver's cab sends an alarm signal to the video alarm device. After the video alarm device in the driver's cab recognizes the alarm signal, it will sound an alarm prompt and record information such as the alarm time.

[0047] After the video alarm device recognizes the alarm signal, it executes the emergency brake application instruction. The normally closed points K1 and K2 in the video alarm device in the driver's cab are disconnected, the train's emergency brake safety circuit is disconnected, and the train applies emergency brakes.

[0048] The communication between the video surveillance camera device and the driver's cab video alarm device is achieved through wired network communication technology.

[0049] When communication is not established between the video surveillance camera device and the driver's cab video alarm device, points K1 and K2 remain normally open, making it impossible to establish the train emergency braking safety circuit.

[0050] The above-mentioned video alarm device has a screen that can display information such as communication status, alarm signal reception status, and whether emergency braking is applied.

[0051] The communication status, alarm signal reception status, emergency brake application status and other status of the video alarm device can be displayed in the form of signal lights;

[0052] The communication between the video surveillance camera device and the video alarm device in the driver's cab is achieved through wireless network communication technology;

[0053] The above power supply device can be replaced by a vehicle-mounted AC220V, AC380V or DC110V power supply.

[0054] Example 2:

[0055] See attached Figure 1 As shown, based on the system of embodiment 1, a driver's cab video monitoring method is disclosed, including:

[0056] Collect images of the driver while driving and identify the driver's working status based on the collected images. If the driver is fatigued or the driver's movements are not in compliance with the regulations, an alarm signal will be sent;

[0057] After the alarm signal is recognized, the emergency brake application command is executed, the train emergency brake loop is disconnected, and the train performs emergency braking.

[0058] The exemplary technical solution of this embodiment can record the driver's operation in real time, identify the driver's irregular operation and issue an alarm and perform emergency braking of the train, thereby improving the safety of dynamic testing.

[0059] Example 3:

[0060] In this embodiment, a train is disclosed, which includes a driver's cab. The driver's cab is equipped with the above-mentioned video surveillance system, and the driver's operation is monitored by using the above-mentioned video surveillance system.

[0061] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0062] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.

Claims

1. A driver's cab video monitoring system, characterized by: include: Video surveillance camera and video alarm device installed in the driver's cab; The video alarm device is connected in series with the train emergency brake loop; The video surveillance camera device is used to capture images of the driver while driving, and identify the driver's working status based on the captured images. If the driver is in a fatigued state or the driver's movements are not in compliance with the regulations, an alarm signal is sent to the video alarm device; After the video alarm device recognizes the alarm signal, it executes the emergency brake application instruction, the train emergency brake loop is disconnected, and the train performs emergency braking; The video alarm device includes two normally closed switches connected in series in the train emergency brake loop. After recognizing the alarm signal sent by the video surveillance camera device, the two normally closed switches are disconnected; When communication is not established between the video surveillance camera device and the video alarm device, the two normally closed switches remain normally open, thereby preventing the train emergency braking safety circuit from being established.

2. A driver's cab video monitoring system as claimed in claim 1, characterized in that: The system further comprises: a video recording device installed in the driver's cab, the video recording device communicates with the video surveillance camera device, and the video recording device records images captured by the video surveillance camera device in real time.

3. A driver's cab video monitoring system as claimed in claim 2, characterized in that: The system also includes a power supply device, which supplies power to the video monitoring camera device, the video alarm device and the video recording device respectively.

4. A driver's cab video monitoring system as claimed in claim 3, characterized in that: The power supply device uses vehicle-mounted AC220V, AC380V or DC110V.

5. A driver's cab video monitoring system according to any one of claims 1 to 4, characterized in that: The video surveillance camera device and the video alarm device communicate with each other via a wireless network or a wired network.

6. A driver's cab video monitoring system according to any one of claims 1 to 4, characterized in that: The alarm signal between the video surveillance camera device and the video alarm device is sent in the form of an electrical signal.

7. A driver's cab video monitoring system according to any one of claims 1 to 4, characterized in that: After the video alarm device recognizes the alarm signal, it also emits a buzzer prompt to give an alarm prompt and records the alarm time information.

8. A driver's cab video monitoring method, based on the driver's cab video monitoring system according to claim 1, characterized in that: include: Collect images of the driver while driving and identify the driver's working status based on the collected images. If the driver is fatigued or the driver's movements are not in compliance with the regulations, an alarm signal will be sent; After the alarm signal is recognized, the emergency brake application command is executed, the train emergency brake loop is disconnected, and the train performs emergency braking.

9. A train, characterized in that: The train includes a driver's cab, and the driver's cab is equipped with the video monitoring system described in any one of claims 1 to 7, and the driver's operation is monitored by using the video monitoring system.

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