Vehicle-mounted firewall all-in-one machine

Abstract

The utility model relates to the technical field of network security equipment for rail transit, and particularly discloses a vehicle-mounted firewall all-in-one machine, which comprises a 3U machine box, the 3U machine box is of a frame structure, and a vehicle-mounted firewall board card, a vehicle-mounted firewall expansion interface card and a double backup power supply board for vehicle-mounted firewall equipment are sequentially installed in the 3U machine box; and the vehicle-mounted firewall board card, the vehicle-mounted firewall expansion interface card and the double backup power supply board for vehicle-mounted firewall equipment are all adaptively installed in corresponding guide rail grooves in the 3U machine box. The innovative integration of the overall structure reduces signal transmission loss and interference between components, improves data processing speed and accuracy, and the convenient board card connection structure design reduces equipment maintenance cost, reduces economic losses caused by equipment downtime, and the redundant power supply hot switching technology effectively avoids equipment downtime caused by power supply failure, ensuring the continuity and stability of vehicle-mounted network security protection.

Description

Technical Field

[0001] This utility model belongs to the technical field of network security equipment for rail transit, specifically relating to an integrated vehicle-mounted firewall. Background Technology

[0002] Existing firewalls are generally rack-mounted, adhering to the standard 1U rack size, and equipped with power connectors, RJ45 console ports, and RJ45 Ethernet ports. They typically use a single-power-redundant module. They have a wide range of applications and are considered standard products. Their primary function is network security protection, including restricting unauthorized access and detecting and blocking malicious data.

[0003] Current firewalls generally have the following drawbacks: their small 1U size and compact internal hardware components limit the configuration of hardware such as processors and memory, making them prone to performance bottlenecks when handling a large number of concurrent connections or complex network traffic; their compact design is not conducive to heat dissipation, as temperature changes in the vehicle environment, vibrations generated during vehicle operation, and dust can all affect heat dissipation; traditional 1U vehicle firewalls only have one power supply, and a failure of the power board can cause the vehicle to stop working, increasing safety hazards during vehicle operation. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated vehicle firewall unit to solve the problems existing in the prior art, such as limited loading space due to compact structure, poor heat dissipation, and easy failure due to single power supply mode.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An integrated vehicle firewall unit includes a 3U chassis. The 3U chassis has a frame structure and adopts a fanless natural heat dissipation design. The 3U chassis sequentially houses a vehicle firewall board, a vehicle firewall expansion interface card, and a dual backup power board for the vehicle firewall device. Each of the vehicle firewall board, expansion interface card, and dual backup power board is fitted with corresponding guide rails in the 3U chassis. The sides of each vehicle firewall board, expansion interface card, and dual backup power board are equipped with easy-to-remove pull-out locking devices, allowing for replacement in case of malfunction or damage.

[0006] According to one aspect of the present invention, the dual backup power board of the vehicle firewall device is electrically connected to an external power supply connector, and the dual backup power board of the vehicle firewall device is electrically connected to the back panel of the 3U chassis.

[0007] According to one aspect of the present invention, the vehicle firewall board is electrically connected to the backplane of the 3U chassis, and the vehicle firewall expansion interface card is also electrically connected to the backplane of the 3U chassis.

[0008] According to one aspect of this utility model, the vehicle firewall expansion interface card adopts a modular design, which can improve the adaptability of the device to different vehicle network environments by increasing the number and types of interfaces.

[0009] According to one aspect of the present invention, the dual backup power board for the vehicle firewall device adopts dual backup and hot-switching power board technology, and achieves real-time redundant backup of the power supply by equipping two power supplies to be powered on simultaneously.

[0010] According to one aspect of this utility model, the vehicle firewall board, the vehicle firewall expansion interface card, and the dual backup power board for the vehicle firewall device are all secured with anti-loosening screws after installation, and are all tightened with a torque screwdriver according to the required values.

[0011] According to one aspect of the present invention, the 3U chassis has two handles symmetrically and integrally connected at one end away from its back panel, and the bottom and top of the 3U chassis are both hollowed out.

[0012] According to one aspect of this utility model, an indicator light is integrated on the back of the dual backup power board of the vehicle firewall device, and the indicator light is directly driven by the power module and the undervoltage detection circuit. Compared with the prior art, the beneficial effects of this utility model are: This utility model adopts a modular design. By increasing the number and types of interfaces, it can improve the adaptability of the device to different vehicle network environments. The innovative integration of the overall structure reduces signal transmission loss and interference between components, and improves data processing speed and accuracy. The connection structure between the circuit board and the chassis back panel in this utility model adopts a standardized and universal connector to realize quick disassembly and assembly between the chassis and the circuit board. When the vehicle firewall circuit board has a problem, the circuit board can be replaced directly without replacing the entire vehicle firewall unit. The convenient circuit board connection structure design reduces the maintenance cost of the equipment and reduces the economic losses caused by equipment downtime. The dual backup power board for the vehicle firewall equipment in this utility model adopts dual backup and hot-switching power board technology. By equipping it with two power supplies to be powered on at the same time, real-time redundant backup of the power supply is achieved. By adopting redundant power supply hot-switching technology, the equipment downtime caused by power failure is effectively avoided, ensuring the continuity and stability of vehicle network security protection. Attached Figure Description

[0013] Figure 1 This is a front view of an integrated vehicle firewall unit according to an exemplary embodiment; Figure 2 This is one of the top views of an integrated vehicle firewall according to an exemplary embodiment; Figure 3 This is a second top view of an integrated vehicle firewall unit according to an exemplary embodiment; Figure 4 This is a three-dimensional schematic diagram of an integrated vehicle firewall according to an exemplary embodiment.

[0014] 1-3U chassis; 2-Vehicle firewall board; 3-Vehicle firewall expansion interface card; 4-Dual backup power board for vehicle firewall equipment; 5-Auxiliary puller locking device. Detailed Implementation

[0015] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0016] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0017] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] Figure 1 This is a front view of an integrated vehicle firewall unit according to an exemplary embodiment. Figure 2 This is one of the top views of an integrated vehicle firewall unit according to an exemplary embodiment. Figure 3 This is a second top view of an integrated vehicle firewall unit according to an exemplary embodiment. Figure 4 This is a three-dimensional schematic diagram of an integrated vehicle firewall according to an exemplary embodiment, with reference to... Figures 1-4 As shown, this utility model provides an integrated vehicle-mounted firewall unit, including a 3U chassis 1. The 3U chassis 1 has a frame structure, and a vehicle-mounted firewall board 2, a vehicle-mounted firewall expansion interface card 3, and a dual backup power supply board 4 for the vehicle-mounted firewall equipment are sequentially installed in the 3U chassis 1. The vehicle-mounted firewall board 2 and the vehicle-mounted firewall expansion interface card 3 can support up to 9 network interfaces for network transmission and connection, which can meet various usage scenarios of trains and realize data transmission and interaction between devices such as traction drive unit, braking unit, signal system, auxiliary transformer unit, air conditioning, doors, PIS, CCTV, etc. The 3U chassis 1 adopts a fanless design, which is suitable for the vehicle-mounted control network environment. It increases heat dissipation performance, improves equipment reliability and service life, and maintains stable equipment operation. The dual backup power board used in the vehicle firewall has indicator lights integrated on its back, which are directly driven by the power module and undervoltage detection circuit. A solid green light indicates normal main power supply operation; a green light off indicates a current power module failure, and the system has switched to backup power; a solid red light indicates undervoltage; and a flashing red light indicates a power module hardware failure (such as EMC circuit failure or DC-DC conversion failure). Furthermore, the fanless, sealed design combined with an optimized heat dissipation structure effectively reduces the internal temperature of the device, decreases the risk of hardware failure due to high temperatures, improves the reliability and stability of the device, and extends its service life. The scalable interface system design ensures that the device can meet the communication needs of different vehicle network environments, improving the efficiency and stability of network data transmission.

[0020] Furthermore, the vehicle firewall board 2, vehicle firewall expansion interface card 3, and dual backup power board 4 for the vehicle firewall equipment are all adapted and installed in the corresponding guide rail slots in the 3U chassis 1. The sides of the vehicle firewall board 2, vehicle firewall expansion interface card 3, and dual backup power board 4 are all equipped with easy-to-install pull-out locking devices 5. The connection structure between the boards and the chassis back panel uses standardized and universal connectors to achieve quick disassembly and assembly between the chassis and the boards. When the vehicle firewall board 2 malfunctions, the board can be replaced directly without replacing the entire vehicle firewall unit, thereby reducing costs and enabling sustainable development. While the procurement cost of this new type is higher than that of the 1U firewall, it offers stronger performance and richer functionality. In large-scale application scenarios, it reduces overall costs by integrating resources and reducing the number of devices, and possesses good scalability to meet long-term vehicle safety upgrade needs, avoiding the cost waste caused by frequent equipment upgrades and replacements. The convenient board connection structure design reduces equipment maintenance costs and minimizes economic losses caused by equipment downtime. The 3U chassis 1 has two handles symmetrically integrated at the end away from its back panel, and the bottom and top of the 3U chassis 1 are both perforated to improve its heat dissipation capacity.

[0021] After installation, the vehicle firewall board 2, vehicle firewall expansion interface card 3, and dual backup power board for vehicle firewall equipment 4 are all secured with anti-loosening screws and tightened to the required values ​​using a torque screwdriver.

[0022] The innovative integration of the overall structure reduces signal transmission loss and interference between components, and improves data processing speed and accuracy.

[0023] Furthermore, the dual backup power board 4 of the vehicle firewall device is electrically connected to the external power supply connector, and the dual backup power board 4 of the vehicle firewall device is electrically connected to the backplane of the 3U chassis 1; the vehicle firewall board 2 is electrically connected to the backplane of the 3U chassis 1, and the vehicle firewall expansion interface card 3 is also electrically connected to the backplane of the 3U chassis 1.

[0024] In a further embodiment, the vehicle firewall expansion interface card 3 adopts a modular design, which can improve the device's adaptability to different vehicle network environments by increasing the number and types of interfaces.

[0025] In this embodiment, the device can increase the number and type of interfaces according to the specific needs of the project or the personalized requirements of the customer, effectively solving the problem of limited number and function of traditional vehicle firewall interfaces and improving the device's adaptability to different vehicle network environments.

[0026] In a further embodiment, the dual backup power board 4 for the vehicle firewall device adopts dual backup and hot-switching power board technology, which achieves real-time redundant backup of the power supply by equipping two power supplies to be powered on simultaneously.

[0027] In this embodiment, a dual-backup, hot-swappable power board is designed so that both power sources are powered on simultaneously. When one power source fails, it can automatically and seamlessly switch to the other power source to ensure uninterrupted operation of the equipment, provide continuous and stable power support for vehicle network security, and eliminate safety hazards caused by power failure.

[0028] Professionals may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this utility model.

[0029] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the above-described apparatus and equipment can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0030] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0031] It should be understood that the sequence number of each step in the utility model content and embodiments does not absolutely mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the utility model embodiments.

Claims

1. A vehicle-mounted firewall integrated unit, comprising a 3U chassis (1), characterized in that, The 3U chassis (1) is a frame structure. The 3U chassis (1) adopts a fanless natural heat dissipation design. The 3U chassis (1) is installed in sequence with a vehicle firewall board (2), a vehicle firewall expansion interface card (3), and a dual backup power board (4) for the vehicle firewall equipment. Furthermore, the vehicle firewall board (2), vehicle firewall expansion interface card (3), and dual backup power board (4) for vehicle firewall equipment are all adapted and installed in the corresponding guide rail slots in the 3U chassis (1). The sides of the vehicle firewall board (2), vehicle firewall expansion interface card (3), and dual backup power board (4) for vehicle firewall equipment are all equipped with easy-to-remove puller locking devices (5), which can be replaced by puller locking devices (5) when the vehicle firewall board (2), vehicle firewall expansion interface card (3), and dual backup power board (4) for vehicle firewall equipment are damaged.

2. The vehicle-mounted firewall integrated unit according to claim 1, characterized in that: The dual backup power board (4) of the vehicle firewall device is electrically connected to the external power supply connector, and the dual backup power board (4) of the vehicle firewall device is electrically connected to the back panel of the 3U chassis (1).

3. The vehicle-mounted firewall integrated unit according to claim 2, characterized in that: The vehicle firewall board (2) is electrically connected to the backplane of the 3U chassis (1), and the vehicle firewall expansion interface card (3) is also electrically connected to the backplane of the 3U chassis (1).

4. The vehicle-mounted firewall integrated unit according to claim 1, characterized in that: The vehicle firewall expansion interface card (3) adopts a modular design, increasing the number and types of interfaces.

5. The vehicle-mounted firewall integrated unit according to claim 1, characterized in that: The dual backup power board (4) of the vehicle firewall equipment adopts dual backup and hot switching power board technology and is equipped with two power supplies that are powered on at the same time.

6. The vehicle-mounted firewall integrated unit according to claim 1, characterized in that: After installation, the vehicle firewall board (2), vehicle firewall expansion interface card (3), and dual backup power board (4) for vehicle firewall equipment are all secured with anti-loosening screws and tightened with a torque screwdriver according to the required values.

7. The vehicle-mounted firewall integrated unit according to claim 1, characterized in that: The 3U chassis (1) has two handles symmetrically and integrally connected at the end away from its back panel, and the bottom and top of the 3U chassis (1) are both hollowed out.

8. The vehicle-mounted firewall integrated unit according to claim 1, characterized in that: The vehicle firewall device has an indicator light integrated on the back of the dual backup power board (4), which is directly driven by the power module and the undervoltage detection circuit.

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