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

Abstract

The utility model 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 (Wireless Fidelity) module and a satellite receiving module, and the wireless transmission module further comprises a GSM (Global System for Mobile Communications) unit, 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 utility model relates to communication equipment technical field especially relates to a kind of vehicle-mounted equipment for train multi-network fusion communication transmission. BACKGROUND

[0002] Train multi-network fusion communication equipment includes main control unit (VC), wireless transmission unit, interface unit.Main control unit is the core of vehicle-mounted equipment, for processing various communication tasks and data exchange.Wireless transmission unit includes multiple communication modules, such as GSM module, public mobile communication module (such as 3G / 4G / 5G), WLAN_WIFI module and GPS / BDS satellite receiving module etc.These modules collectively realized the wireless transmission of real-time data and non-real-time data between train and ground.Interface unit includes switch circuit, controller circuit and interface circuit etc., for realizing the connection and communication between the internal subsystems of vehicle-mounted equipment.

[0003] Among them, GSM module is as the core part of railway special mobile communication system, and its stable operation has important significance for guaranteeing train safety, efficient operation.The basic structure of GSM module includes rotatable antenna, fixed shell and two wire connectors, wherein fixed shell is fixed to equipment by screw, and two wire connectors are connected by two connectors and interface unit respectively to carry out data transmission.

[0004] But train will produce vibration and impact in running process, and these vibration and impact can be conducted to connector through fixed shell, so that connector occurs periodic swing, so that connecting screw on connector loosens, causes the distance between connector and wire connector to change and loosen, so that connection contact is bad, so as to affect signal transmission reliability. Utility model content

[0005] The utility model aims at providing a kind of vehicle-mounted equipment for train multi-network fusion communication transmission, to keep the stability of GSM module connector connection under vibration, avoid loosening, improve the reliability of signal transmission.

[0006] To achieve the above object, the utility model provides a kind of vehicle-mounted equipment for train multi-network fusion communication transmission, including power module, interface module and wireless transmission module, the power module is connected with the interface module, the wireless transmission module includes WIFI module, satellite receiving module and GSM unit, the GSM unit includes shell, joint and antenna module, the joint includes connecting line, limiting frame, support frame, transverse spring group, longitudinal spring group and joint body, the limiting frame is fixed in the shell, the support frame is arranged between the limiting frame and the shell, the transverse spring group and the longitudinal spring group are arranged on the both sides of the limiting frame, the joint body is arranged on the support frame, the antenna module is connected with the joint body by the connecting line.

[0007] Wherein, the limiting frame includes limiting frame body, first spring and support rod, the support rod is slidably arranged on the 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 friction surface, and the friction surface is located on the side close to the support frame.

[0009] Wherein, the joint further includes waterproof sleeve and gland, the waterproof sleeve is fixed around the support frame, and the gland is pressed on the shell.

[0010] Wherein, the gland includes gland body and elastic buckle, the elastic buckle is fixedly connected with the gland body and matched with the clamping groove on the shell.

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

[0012] Wherein, the sealing sleeve includes support plate, sliding sleeve, lock rod and sealing ring, the support plate is fixed on the bottom of the joint body, the sliding sleeve is slidably connected with the support plate and located on the top of the support plate, the lock rod is rotatably arranged on the bottom of the sliding sleeve, and the support plate has connecting groove matched with the lock rod, and the sealing ring is arranged on one side of the sliding sleeve.

[0013] The utility model discloses a kind of vehicle-mounted equipment for train multi-network fusion communication transmission, to deal with vibration and impact problem generated in the process of operation of train, these vibrations and impacts can be conducted to joint through fixed shell, cause joint to occur periodic swing, and then lead to the loosening of connecting screw on joint.When screw loosens, the spacing between joint and flat cable joint changes, thereby causing loosening, finally leading to poor contact at connection, affect the reliability of signal transmission. To solve this problem, the utility model provides a kind of vehicle-mounted equipment solution for train multi-network fusion communication transmission.

[0014] The power module is used for power supply of the whole system, ensuring normal work of each component. The interface module is used for data exchange with other systems or devices, ensuring input and output functions of data. The wireless transmission module contains multiple sub-modules, used for realizing multi-network fusion communication transmission. Specifically, the WIFI module supports wireless communication of the train internal network and with ground stations. The satellite receiving module is used for receiving signals from satellites, ensuring accurate transmission of train position information. The GSM unit is designed for railway communication, supporting voice and data services. The unit includes a shell, a connector and an antenna module. The GSM unit is designed to consider the requirements of shock absorption and anti-loosening: a connecting plate is arranged at the bottom of the shell, used for fixing the whole unit. The connector includes connecting lines, a limiting frame, a supporting frame, a horizontal spring group, a vertical spring group and a connector body. The limiting frame is fixed inside the shell, the supporting frame is located between the limiting frame and the shell, and the horizontal and vertical spring groups are installed on both sides of the limiting frame, used for absorbing vibrations and impacts from different directions. The connector body is fixed on the supporting frame, to reduce loosening caused by vibration.

[0015] Through the structural design, the utility model effectively solves the problem of connector loosening caused by vibration and impact during train operation, improves the reliability of signal transmission, and thus guarantees the safety and efficiency of train communication. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is a structure diagram of the vehicle-mounted equipment for train multi-network fusion communication transmission of the utility model.

[0018] Figure 2 It is a structure diagram of the GSM unit of the utility model.

[0019] Figure 3 It is a top cross-sectional structure diagram of the GSM unit of the utility model.

[0020] Figure 4 It is a right side cross-sectional structure diagram of the GSM unit of the utility model.

[0021] Figure 5 It is a cross-sectional structure diagram of the GSM unit along the ball of the utility model.

[0022] Figure 6 is Figure 5 Detail A is a partial enlarged view.

[0023] Figure 7 is a structure diagram of the interface module of the utility model.

[0024] Power module 101, interface module 102, wireless transmission module 103, WIFI module 104, satellite receiving module 105, GSM unit 106, shell 107, joint 108, antenna module 109, connecting line 110, limiting frame 111, support frame 112, horizontal spring group 113, vertical spring group 114, joint body 115, limiting frame body 116, first spring 117, support rod 118, friction surface 119, waterproof sleeve 120, gland 121, gland body 122, elastic buckle 123, sealing sleeve 124, support plate 125, sliding sleeve 126, lock 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] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0026] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model. The indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as the limitation of the utility model. In addition, in the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0027] Please refer to Figures 1-7The utility model provides a kind of vehicle-mounted equipment for train multi-network fusion communication transmission, including power module 101, interface module 102 and wireless transmission module 103, the power module 101 is connected with the interface module 102, the wireless transmission WIFI module 104 includes WIFI WIFI module 104 and satellite receiving module 105, the wireless transmission WIFI module 104 further includes GSM GSM unit 106, the GSM GSM unit 106 includes shell 107, joint 108 and antenna module 109, the shell 107 bottom is provided with connecting plate, the joint 108 includes connecting line 110, limiting frame 111, support frame 112, transverse spring group 113, longitudinal spring group 114 and joint body 115, the limiting frame 111 is fixed in the shell 107, the support frame 112 is arranged between the limiting frame 111 and the shell 107, the transverse spring group 113 and the longitudinal spring group 114 are arranged in the both sides of the limiting frame 111, the joint body 115 is arranged on the support frame 112, the antenna module 109 is arranged in a side of the shell 107, and is connected with the joint body 115 by the connecting line 110.

[0028] In the embodiment, in order to deal with the vibration and impact generated during the operation of the train, these vibrations and impacts will be conducted to the joint 108 through the fixed shell 107, causing the joint 108 to periodically swing, and further causing the loosening of the connecting screw on the joint 108. When the screw is loosened, the spacing between the joint 108 and the wire joint 108 changes, causing loosening, and ultimately leading to poor contact at the connection, affecting the reliability of signal transmission. To solve this problem, the utility model provides a vehicle-mounted equipment solution for train multi-network fusion communication transmission.

[0029] The power module 101 is used for power supply of the whole system, ensuring normal work of various components. The interface module 102 is used for data exchange with other systems or devices, ensuring input and output functions of data. The wireless transmission WIFI module 104 contains multiple sub WIFI modules 104, which are used for realizing multi-network fusion communication transmission. Specifically, the WIFI WIFI module 104 supports wireless communication of the train internal network and with the ground station. The satellite receiving module 105 is used for receiving signals from satellites, ensuring accurate transmission of train position information. The GSM GSM unit 106 is specially designed for railway communication, supporting voice and data services. The GSM GSM unit 106 includes a shell 107, a joint 108 and an antenna module 109. Among them, the design of the GSM GSM unit 106 specially considers the needs of shock absorption and anti-looseness: the shell 107 is provided with a connecting plate at the bottom, which is used to fix the whole GSM unit 106. The joint 108 includes a connecting line 110, a limiting frame 111, a supporting frame 112, a transverse spring group 113, a longitudinal spring group 114 and a joint body 115. The limiting frame 111 is fixed inside the shell 107, the supporting frame 112 is located between the limiting frame 111 and the shell 107, and the transverse and longitudinal spring groups 114 are installed on both sides of the limiting frame 111, so as to absorb vibrations and impacts from different directions. The joint body 115 is fixed on the supporting frame 112 to reduce looseness caused by vibration. The antenna module 109 is installed on one side of the shell 107 and connected with the joint body 115 through the connecting line 110, so as to ensure stable and reliable signal transmission.

[0030] Through the structure design, the utility model effectively solves the problem of looseness of the joint 108 caused by vibration and impact during train operation, improves the reliability of signal transmission, and thus guarantees the safety and efficiency of train communication.

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

[0032] The supporting rod 118 is slidingly arranged on one side of the limiting frame body 116 close to the supporting frame 112, so as to adjust its position according to external vibration. The first spring 117 is arranged between the limiting frame body 116 and the supporting rod 118, which plays a buffering role, absorbs vibration energy through elastic deformation of the spring, prevents the joint 108 from loosening due to frequent vibration, and thus can buffer in the third direction, so as to further improve the impact resistance.

[0033] The supporting rod 118 has a friction surface 119 located on one side close to the supporting frame 112.

[0034] By increasing 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, preventing the support frame 112 from moving randomly without sufficient vibration energy, so that stability can be maintained without vibration in the case of low-frequency vibration, thereby improving stability.

[0035] The joint 108 also includes a waterproof sleeve 120 fixed around the support frame 112 and a gland 121 pressed on the shell 107.

[0036] The waterproof sleeve 120 is fixed around the support frame 112 to prevent water or other liquids from entering the inside of the joint 108 and protect the electrical connection from damage. The waterproof sleeve 120 can be pressed on the shell 107 by the gland 121, which ensures the close fit of the waterproof sleeve 120, thereby achieving good waterproof effect.

[0037] The gland 121 includes a gland body 122 and an elastic buckle 123 fixedly connected with the gland body 122 and matched with the clamping groove on the shell 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 it from falling off due to vibration during train operation.

[0039] The joint 108 also includes a sealing sleeve 124 arranged 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 fixed on the bottom of the joint body 115, a sliding sleeve 126 slidingly connected with the support plate 125 and located on the top of the support plate 125, a lock rod 127 rotatably arranged on the bottom of the sliding sleeve 126, and a sealing ring 128 arranged on one side of the sliding sleeve 126.

[0042] When the external cable and the connector body 115 are connected, the sliding sleeve 126 can be slid downward so that the lock rod 127 approaches the connection slot on the support rod 118. Then, when the lock rod 127 is turned to a certain angle, it can cooperate with the connection slot 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 tightly fit on 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 with the wireless transmission WIFI module 104. The signal strength detection unit 129 is used to detect signal strength. The switching unit 131 is used to switch to an alternative channel for signal transmission when the signal strength of a certain channel is below a threshold value.

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

[0045] The signal strength detection unit 129 is responsible for real-time monitoring of the signal quality of each communication channel. It assesses the signal stability in the current communication environment by continuously monitoring the changes in signal strength, which is crucial for ensuring 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 to make appropriate adjustments.

[0046] The interface unit 130, as a key part of the WIFI module 104, undertakes the important responsibility of establishing a connection with the wireless transmission WIFI module 104. Its design purpose is to ensure the establishment of a stable data link 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 switching unit 131 functions to automatically select the best signal transmission path under certain conditions. Specifically, when the signal strength of a certain communication channel drops below the preset threshold, the switching unit 131 will automatically start the switching mechanism to 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 the problem of 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 set in the placement groove, the two fourth springs 133 are set on both sides of the inertia block 134, and the ball 135 is set 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 designed to provide stable support and vibration reduction. It primarily comprises several key components: the support frame body 132, two fourth springs 133, an inertia block 134, and ball bearings 135. The support frame body 132 is designed with a slot to accommodate and guide the movement of the inertia block 134. The inertia block 134, a core component of the design, features a specialized retaining groove that mates with the ball bearings 135.

[0050] The inertia block 134 is slidably mounted within a slot on the support frame body 132. It can slide freely within a certain range, and this sliding ability is provided by two fourth springs 133 located on either side of the inertia block 134. These two springs can compress or expand in response to external forces or vibrations, thereby adjusting the position of the inertia block 134 and providing a buffering effect.

[0051] Ball bearings 135 are positioned within the slots of inertia block 134. When the device experiences vibration or impact, inertia block 134 will vibrate. In this situation, when the slots of inertia block 134 overlap with the placement slots, ball bearings 135, propelled by inertia block 134, partially extend from the slots and out of the placement slots, contacting support frame body 132. The replacement of direct sliding contact between ball bearings 135 and the frame significantly reduces friction between them, resulting in more effective vibration reduction.

[0052] The above disclosure is only a preferred embodiment of the present invention, and 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 in accordance with the claims of the present invention are still within the scope of the utility model.

Claims

1. A vehicle-mounted device for multi-network integrated communication transmission on a train, 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 multi-network integrated communication transmission on trains according to claim 1, characterized in that: The limiting frame includes 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. 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 according to claim 2, characterized in that: The support rod has a friction surface, and the friction surface is located on a side close to the support frame.

4. The on-board device for multi-network integrated communication transmission on trains according to 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 cannot be pressed against the shell through the pressure cover.

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

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

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

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