Vehicle-mounted equipment for train multi-network converged communication transmission

Abstract

The invention relates to the technical field of communication equipment, in particular to vehicle-mounted equipment for train multi-network convergence communication transmission, which comprises a power supply module, an interface module and a wireless transmission module, the power supply module is connected with the interface module, the wireless transmission module comprises a WIFI module and a satellite receiving module, the wireless transmission module further comprises a GSM unit, and the GSM unit is connected with the interface module. The GSM unit comprises a shell, a connector and an antenna module, the connector comprises a connecting wire, a limiting frame, a supporting frame, a transverse spring set, a longitudinal spring set and a connector body, the limiting frame is fixed in the shell, the supporting frame is arranged between the limiting frame and the shell, the transverse spring set and the longitudinal spring set are arranged on the two sides of the limiting frame, and the connector body is arranged on the supporting frame. The antenna module is arranged on one side of the shell and is connected with the connector body through the connecting line, so that the connection stability of the GSM module connector can be kept under the vibration condition, looseness is avoided, and the reliability of signal transmission is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of communication equipment, and in particular to a vehicle-mounted equipment used for multi-network integrated communication transmission in trains. Background Art

[0002] The multi-network fusion communication equipment of the train includes a main control unit (VC), a wireless transmission unit, and an interface unit. The main control unit is the core of the on-board equipment and is used to handle various communication tasks and data exchange. The wireless transmission unit includes a variety of communication modules, such as GSM modules, public network mobile communication modules (such as 3G / 4G / 5G), WLAN_WIFI modules, and GPS / BDS satellite receiving modules. These modules together realize the wireless transmission of real-time data and non-real-time data between the train and the ground. The interface unit includes switch circuits, controller circuits, and interface circuits, etc., which are used to realize the connection and communication between the subsystems inside the on-board equipment.

[0003] The GSM module is the core part of the railway-specific mobile communication system, and its stable operation is of great significance to ensure the safe and efficient operation of trains. The basic structure of the GSM module includes a rotatable antenna, a fixed shell and two cable connectors, where the fixed shell is fixed to the device by screws, and the two cable connectors are connected to the interface unit through two connectors for data transmission.

[0004] However, the train will generate vibrations and impacts during operation, and these vibrations and impacts will be transmitted to the connector through the fixed shell, causing the connector to swing periodically, loosening the connecting screws on the connector, and causing the distance between the connector and the cable connector to change and loosen, resulting in poor contact at the connection, thus affecting the reliability of signal transmission. Summary of the invention

[0005] The object of the present invention is to provide an on-board device for multi-network integrated communication transmission in trains, aiming to maintain the stability of the GSM module connector connection under vibration, avoid loosening, and improve the reliability of signal transmission.

[0006] To achieve the above-mentioned objectives, the present invention provides an on-board device for multi-network integrated communication transmission in trains, comprising a power module, an interface module and a wireless transmission module, wherein the power module is connected to the interface module, the wireless transmission module comprises a WIFI module, a satellite receiving module and a GSM unit, the GSM unit comprises a housing, a connector and an antenna module, the connector comprises a connecting line, a limit frame, a support frame, a transverse spring group, a longitudinal spring group and a connector body, the limit frame is fixed in the housing, the support frame is arranged between the limit frame and the housing, the transverse spring group and the longitudinal spring group are arranged on both sides of the limit frame, the connector body is arranged on the support frame, and the antenna module is connected to the connector body through the connecting line.

[0007] Wherein, the limiting frame comprises a limiting frame body, a first spring and a support rod, the support rod is slidably arranged on a side of the limiting frame body close to the support frame, and the first spring is arranged between the limiting frame body and the support rod.

[0008] Wherein, the support rod has a friction surface, and the friction surface is located on a side close to the support frame.

[0009] Wherein, the joint also includes a waterproof sleeve and a pressure cover, and the waterproof sleeve is fixed around the supporting frame and can be pressed against the outer shell through the pressure cover.

[0010] Wherein, the gland includes a gland body and an elastic buckle, and the elastic buckle is fixedly connected to the gland body and cooperates with a slot on the shell.

[0011] Wherein, the joint further comprises a sealing sleeve, and the sealing sleeve is arranged on the outside of the joint body.

[0012] Wherein, the sealing sleeve includes a support plate, a sliding sleeve, a locking rod and a sealing ring, the support plate is fixed at the bottom of the joint body, the sliding sleeve is slidingly connected to the support plate and is located at the top of the support plate, the locking rod is rotatably arranged at the bottom of the sliding sleeve, and a connecting groove matching the locking rod is provided on the support plate, and the sealing ring is arranged on one side of the sliding sleeve.

[0013] The present invention is an on-board device for multi-network integrated communication transmission on trains. In order to cope with the vibration and impact problems generated by the train during operation, these vibrations and impacts will be transmitted to the connector through the fixed housing, causing the connector to swing periodically, thereby causing the connecting screws on the connector to loosen. When the screws are loose, the spacing between the connector and the cable connector changes, causing looseness, and ultimately resulting in poor contact at the connection, affecting the reliability of signal transmission. In response to this problem, the present invention proposes an on-board device solution for multi-network integrated communication transmission on trains.

[0014] The power module is used to power the entire system to ensure the normal operation of each component. The interface module is used to exchange data with other systems or devices to ensure the input and output functions of data. The wireless transmission module contains multiple submodules for realizing multi-network integrated communication transmission. Specifically, the WIFI module supports the internal network of the train and wireless communication with the ground station. The satellite receiving module is used to receive signals from the satellite to ensure the accurate transmission of the train location information. The GSM unit is designed for railway communication and supports voice and data services. This unit includes a shell, a connector and an antenna module. Among them, the design of the GSM unit specifically considers the needs of shock absorption and anti-loosening: a connecting plate is provided at the bottom of the shell to fix the entire unit. The connector includes a connecting wire, a limit frame, a support frame, a transverse spring group, a longitudinal spring group and a connector body. The limit frame is fixed inside the shell, the support frame is located between the limit frame and the shell, and the transverse and longitudinal spring groups are installed on both sides of the limit frame to absorb vibration and impact from different directions. The connector body is fixed on the support frame to reduce looseness caused by vibration. The antenna module is installed on one side of the shell and is connected to the connector body through a connecting wire to ensure stable and reliable signal transmission.

[0015] Through this structural design, the present invention effectively solves the problem of loose joints caused by vibration and impact during train operation, improves the reliability of signal transmission, and thus ensures the safety and efficiency of train communications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural diagram of an on-board device for multi-network integrated communication transmission in trains according to the present invention.

[0018] Figure 2 It is a structural diagram of the GSM unit of the present invention.

[0019] Figure 3 It is a top cross-sectional structural diagram of the GSM unit of the present invention.

[0020] Figure 4 It is a right side cross-sectional structural diagram of the GSM unit of the present invention.

[0021] Figure 5 It is a cross-sectional structural diagram of the GSM unit of the present invention along the ball.

[0022] Figure 6 yes Figure 5 A partial enlargement of detail A.

[0023] Figure 7 It is a structural diagram of the interface module of the present invention.

[0024] Power module 101, interface module 102, wireless transmission module 103, WIFI module 104, satellite receiving module 105, GSM unit 106, housing 107, connector 108, antenna module 109, connecting line 110, limit frame 111, support frame 112, transverse spring group 113, longitudinal spring group 114, connector body 115, limit frame body 116, first spring 117, support rod 118, friction surface 119, waterproof cover 120, pressure cover 121, pressure cover body 122, elastic buckle 123, sealing cover 124, support plate 125, sliding cover 126, locking rod 127, sealing ring 128, signal strength detection unit 129, interface unit 130, switching unit 131, support frame body 132, fourth spring 133, inertia block 134, ball 135. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] See also Figure 1 to Figure 7The present invention provides an on-board device for multi-network integrated communication transmission of trains, comprising a power module 101, an interface module 102 and a wireless transmission module 103, wherein the power module 101 is connected to the interface module 102, the wireless transmission WIFI module 104 comprises a WIFIWIFI module 104 and a satellite receiving module 105, the wireless transmission WIFI module 104 further comprises a GSMGSM unit 106, the GSMGSM unit 106 comprises a housing 107, a connector 108 and an antenna module 109, the housing 107 is provided with a connecting plate at the bottom, the connector 108 is provided with a connecting plate, and the connecting plate 109 is provided with a connecting plate. 08 includes a connecting line 110, a limit frame 111, a support frame 112, a transverse spring group 113, a longitudinal spring group 114 and a connector body 115, the limit frame 111 is fixed in the housing 107, the support frame 112 is arranged between the limit frame 111 and the housing 107, the transverse spring group 113 and the longitudinal spring group 114 are arranged on both sides of the limit frame 111, the connector body 115 is arranged on the support frame 112, the antenna module 109 is arranged on one side of the housing 107, and is connected to the connector body 115 through the connecting line 110.

[0028] In this embodiment, in order to deal with the vibration and impact problems generated by the train during operation, these vibrations and impacts will be transmitted to the connector 108 through the fixed housing 107, causing the connector 108 to swing periodically, thereby causing the connection screws on the connector 108 to loosen. When the screws are loose, the spacing between the connector 108 and the cable connector 108 changes, causing looseness, and ultimately resulting in poor contact at the connection, affecting the reliability of signal transmission. In response to this problem, the present invention proposes a vehicle-mounted equipment solution for multi-network integrated communication transmission in trains.

[0029] The power module 101 is used to power the entire system to ensure that each component works properly. The interface module 102 is used to exchange data with other systems or devices to ensure the input and output functions of data. The wireless transmission WIFI module 104 includes multiple sub-WIFI modules 104, which are used to realize multi-network integrated communication transmission. Specifically, the WIFI WIFI module 104 supports the internal network of the train and wireless communication with the ground station. The satellite receiving module 105 is used to receive signals from the satellite to ensure accurate transmission of the train location information. The GSMGSM unit 106 is designed for railway communications and supports voice and data services. This GSM unit 106 includes a housing 107, a connector 108 and an antenna module 109. Among them, the design of the GSMGSM unit 106 specifically considers the requirements of shock absorption and anti-loosening: a connecting plate is provided at the bottom of the housing 107 to fix the entire GSM unit 106. The connector 108 includes a connecting line 110, a limit frame 111, a support frame 112, a transverse spring group 113, a longitudinal spring group 114 and a connector body 115. The limit frame 111 is fixed inside the housing 107, the support frame 112 is located between the limit frame 111 and the housing 107, and the transverse and longitudinal spring groups 114 are installed on both sides of the limit frame 111 to absorb vibration and impact from different directions. The connector body 115 is fixed on the support frame 112 to reduce looseness caused by vibration. The antenna module 109 is installed on one side of the housing 107 and is connected to the connector body 115 through the connecting line 110 to ensure stable and reliable signal transmission.

[0030] Through this structural design, the present invention effectively solves the problem of loosening of the connector 108 due to vibration and impact during train operation, improves the reliability of signal transmission, and thus ensures the safety and efficiency of train communication.

[0031] The limiting frame 111 includes a limiting frame body 116 , a first spring 117 and a support rod 118 . The support rod 118 is slidably disposed on a side of the limiting frame body 116 close to the support frame 112 . The first spring 117 is disposed between the limiting frame body 116 and the support rod 118 .

[0032] The support rod 118 is slidably disposed on one side of the limit frame body 116 close to the support frame 112, so as to adjust its position according to external vibration. The first spring 117 is disposed between the limit frame body 116 and the support rod 118, and plays a buffering role, absorbing vibration energy through elastic deformation of the spring, and preventing the joint 108 from loosening due to frequent vibration, so that buffering can be performed in the third direction to further improve the impact resistance.

[0033] The support rod 118 has a friction surface 119 , and the friction surface 119 is located at a side close to the support frame 112 .

[0034] By adding the design of the friction surface 119, a certain resistance can be generated when the support rod 118 moves, thereby improving the stability of the system and preventing the support frame 112 from moving randomly without sufficient vibration energy, so that it can remain stable without vibration in the case of low-frequency vibration, thereby improving stability.

[0035] The joint 108 further includes a waterproof sleeve 120 and a pressure cover 121 . The waterproof sleeve 120 is fixed around the support frame 112 and can be pressed against the housing 107 through the pressure cover 121 .

[0036] The waterproof cover 120 is fixed around the support frame 112 to prevent water or other liquids from entering the connector 108 and protect the electrical connection from being damaged. The waterproof cover 120 can be pressed against the housing 107 by a pressure cover 121, which ensures that the waterproof cover 120 fits tightly, thereby achieving a good waterproof effect.

[0037] The gland 121 includes a gland body 122 and an elastic buckle 123 . The elastic buckle 123 is fixedly connected to the gland body 122 and cooperates with a slot on the housing 107 .

[0038] This design not only facilitates the installation and removal of the gland 121, but also ensures the stability of the gland 121, preventing the gland 121 from falling off due to vibration during the operation of the train.

[0039] The joint 108 further includes a sealing sleeve 124 , which is disposed on the outside of the joint body 115 .

[0040] The sealing sleeve 124 is used to further enhance the waterproof performance.

[0041] The sealing sleeve 124 includes a support plate 125, a sliding sleeve 126, a locking rod 127 and a sealing ring 128. The support plate 125 is fixed to the bottom of the joint body 115. The sliding sleeve 126 is slidingly connected to the support plate 125 and is located at the top of the support plate 125. The locking rod 127 is rotatably set at the bottom of the sliding sleeve 126. A connecting groove matching the locking rod 127 is provided on the support plate 125. The sealing ring 128 is set on one side of the sliding sleeve 126.

[0042] After the external cable is connected to the connector body 115, the sliding sleeve 126 can be slid downward so that the locking rod 127 is close to the connection groove on the support rod 118, and then the locking rod 127 is rotated to a certain angle to cooperate with the connection groove to lock the position of the sliding sleeve 126. The sealing ring 128 is arranged on one side of the sliding sleeve 126. When the sliding sleeve 126 is locked, the sealing ring 128 can be tightly attached to the connected cable to form a sealed environment.

[0043] The interface module 102 includes a signal strength detection unit 129, an interface unit 130 and a switching unit 131. The interface unit 130 is used to connect to the wireless transmission WIFI module 104. The signal strength detection unit 129 is used to detect the signal strength. The switching unit 131 is used to switch to a replacement channel for signal transmission when the signal strength of a certain channel is lower than a threshold.

[0044] The interface module 102 is a complex and sophisticated component, which consists of three main parts: a signal strength detection unit 129, an interface unit 130, and a switching unit 131. These components work together to ensure high efficiency and reliability during data transmission.

[0045] The signal strength detection unit 129 is responsible for real-time monitoring of the signal quality of each communication channel. It evaluates the signal stability in the current communication environment by continuously monitoring the change of signal strength, which is crucial to ensure the quality of data transmission. When a change in signal strength is detected, the GSM unit 106 will promptly feedback information to the control system so that corresponding adjustments can be made.

[0046] As a key part of the WIFI module 104, the interface unit 130 bears the important responsibility of establishing a connection with the wireless transmission WIFI module 104. It is designed to ensure that a stable data link is established between the wireless transmission WIFI module 104 so that data can be accurately transmitted from the sending end to the receiving end. The interface unit 130 not only needs to support multiple communication protocols, but also needs to have good compatibility and scalability to adapt to different application scenarios.

[0047] The function of the switching unit 131 is to automatically select the best signal transmission path under certain conditions. Specifically, when the signal strength of a communication channel drops below a preset threshold, the switching unit 131 will automatically start the switching mechanism and select another channel with higher signal strength to continue data transmission. This not only improves the fault tolerance of the system, but also effectively avoids data loss or delay caused by signal weakening.

[0048] The support frame 112 includes a support frame body 132, two fourth springs 133, an inertia block 134 and a ball 135. The support frame body 132 is provided with a placement groove, the inertia block 134 has a clamping groove, the inertia block 134 is slidably arranged in the placement groove, the two fourth springs 133 are arranged on both sides of the inertia block 134, and the ball 135 is arranged in the clamping groove of the inertia block 134. When the inertia block 134 shakes, the ball 135 can protrude from the clamping groove to the outside of the placement groove to contact the frame to reduce friction, so that better vibration reduction can be performed.

[0049] The support frame 112 is a design for providing stable support and having a vibration reduction function. It mainly includes several key components such as a support frame body 132, two fourth springs 133, an inertia block 134 and a ball 135. A placement groove is designed on the support frame body 132, and this groove is used to accommodate and guide the movement trajectory of the inertia block 134. The inertia block 134 is one of the core components of the design, and a special card slot is provided on it, which matches the ball 135.

[0050] The inertia block 134 is slidably mounted in the placement groove on the support frame body 132, and can slide freely within a certain range, and this sliding ability is provided by two fourth springs 133 located on both sides of the inertia block 134. The two springs can be compressed or stretched according to the external force or vibration, thereby adjusting the position of the inertia block 134 and playing a buffering role.

[0051] The ball bearing 135 is arranged inside the slot of the inertia block 134. When the device encounters vibration or impact, the inertia block 134 will shake accordingly. In this case, when the slot of the inertia block 134 moves to a position that coincides with the placement slot, the ball bearing 135 will partially extend out of the placement slot under the push of the inertia block 134 and contact the support frame body 132. By replacing the direct sliding contact with the rolling contact between the ball bearing 135 and the frame, the friction between the two can be significantly reduced, thereby achieving a more effective vibration reduction effect.

[0052] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A vehicle-mounted device for multi-network integrated communication transmission in trains, comprising a power module, an interface module and a wireless transmission module, wherein the power module is connected to the interface module, the wireless transmission module comprises a WIFI module, a satellite receiving module and a GSM unit, and the GSM unit comprises a housing, a connector and an antenna module, characterized in that: The connector includes a connecting line, a limit frame, a support frame, a transverse spring group, a longitudinal spring group and a connector body. The limit frame is fixed in the shell, the support frame is arranged between the limit frame and the shell, the transverse spring group and the longitudinal spring group are arranged on both sides of the limit frame, the connector body is arranged on the support frame, and the antenna module is connected to the connector body through the connecting line.

2. The vehicle-mounted device for train multi-network integrated communication transmission according to claim 1, characterized in that: The limiting frame comprises a limiting frame body, a first spring and a support rod, the support rod is slidably arranged on a side of the limiting frame body close to the support frame, and the first spring is arranged between the limiting frame body and the support rod.

3. The vehicle-mounted device for train multi-network integrated communication transmission as claimed in claim 2, characterized in that: The support rod has a friction surface, and the friction surface is located at a side close to the support frame.

4. The vehicle-mounted device for train multi-network integrated communication transmission as claimed in claim 3, characterized in that: The joint also includes a waterproof sleeve and a pressure cover. The waterproof sleeve is fixed around the support frame and can be pressed against the outer shell through the pressure cover.

5. The vehicle-mounted device for train multi-network integrated communication transmission as claimed in claim 4, characterized in that: The gland includes a gland body and an elastic buckle. The elastic buckle is fixedly connected to the gland body and cooperates with a slot on the housing.

6. The vehicle-mounted device for multi-network integrated communication transmission in trains according to claim 5, characterized in that: The joint further comprises a sealing sleeve, and the sealing sleeve is arranged on the outside of the joint body.

7. The vehicle-mounted device for train multi-network integrated communication transmission according to claim 6, characterized in that: The sealing sleeve includes a supporting plate, a sliding sleeve, a locking rod and a sealing ring. The supporting plate is fixed at the bottom of the joint body. The sliding sleeve is slidably connected to the supporting plate and is located at the top of the supporting plate. The locking rod is rotatably arranged at the bottom of the sliding sleeve. A connecting groove matching the locking rod is provided on the supporting plate. The sealing ring is arranged on one side of the sliding sleeve.

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