A communication system suitable for mobile devices

Abstract

The utility model discloses a purpose lies in the deficiency that the high cost of the communication system cable suitable for mobile equipment of prior art causes the high cost of equipment, provides a kind of communication system suitable for mobile equipment, this communication system suitable for mobile equipment, including cable, the cable winding and unwinding device of setting up with reel and reel rotary drive arrangement, cable winding and unwinding device is used to set on mobile equipment, cable winding is set on reel, mobile equipment is configured with mobile equipment side control device, one end of cable is electrically connected with mobile equipment side control device, mobile equipment reciprocating operation between the both ends of operating line, still include central control system and adapter wire device, adapter wire device is located in the middle or one end of operating line, using the communication system suitable for mobile equipment of the utility model structure, can save the input cost of cable, reduce the cost of entire equipment.

Description

Technical Field

[0001] This utility model relates to the field of communication technology for port mobile devices, and in particular to a communication system suitable for mobile devices. Background Technology

[0002] In port mobile device communication systems, equipment needs to move back and forth between two locations to transport goods from one location to another. Because the mobile devices move back and forth between these locations, the required lengths of the power cables and control signals cables vary depending on the mobile device's position. To prevent cable tangling, fiber optic composite cables or electrical cables are often laid along the equipment's movement path, connecting the mobile device's control unit to the ground power supply and control unit, providing power and transmitting control signals. The cable is wound on the drum of a cable winding and unwinding device. Because the cable winding and unwinding requires high-strength cables (e.g., high bending strength), the cables are relatively thick and expensive. In actual working scenarios, a ground control system may control multiple mobile devices at considerable distances, resulting in a large amount of cable usage and high operating costs. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing communication systems for mobile devices, which suffer from high equipment costs due to high cable costs, and to provide a communication system suitable for mobile devices.

[0004] The technical solution to the technical problem solved by this utility model is as follows: A communication system suitable for mobile devices includes a cable, a cable winding and unwinding device equipped with a drum and a drum rotation drive, the cable winding and unwinding device being mounted on the mobile device, the cable being wound around the drum, the mobile device being equipped with a mobile device-side control device, one end of the cable being electrically connected to the mobile device-side control device, the mobile device reciprocating between the two ends of the operating line, and also includes a central control system and a transfer cable device, the transfer cable device being located in the middle or at one end of the operating line, the central control system being located outside the mobile device, the other end of the cable being fixed by the transfer cable device and connected to the central control system, thereby realizing a bidirectional electrical connection between the central control system and the mobile device-side control device; The adapter cable is installed at one end of the operating line of the mobile device; The central control system is located near the adapter cable device; It also includes a substation, which is located between the central control system and the transfer cable device. The substation includes a power supply device and a central control side control device. The transfer cable device is bidirectionally connected to the power supply device and the central control side control device of the substation via cables. The substation and the central control system are bidirectionally connected to the central control system via cables. The adapter cable device includes a cable reel and a pressure plate. After the cable is wound on the cable reel, it is pressed down by the pressure plate and the pressure plate is fixed to the cable reel by the clamping bolts, thereby fixing the cable to the cable reel. The cable on the cable winding and unwinding device is a mechanically fatigue-resistant cable, and the cable between the transfer cable device and the substation is a regular cable. Two or more mobile side control devices are bidirectionally electrically connected to the central control system. At least one substation is set up. Each central control device in the substation is bidirectionally electrically connected to the central control system. Each central control device is bidirectionally electrically connected to at least one mobile side control device. Each cable connecting the central control device and the mobile side control device is fixed by a transfer cable device. A cable guide device is provided between the cable winding and unwinding device and the adapter device. The cable guide device includes a cable guide frame located below the drum. Multiple guide wheels are provided on the cable guide frame, which are arranged from top to bottom. The axles of the guide wheels are parallel. From top to bottom, the tangent points of each guide wheel and the cable are successively away from the central vertical section to form an arc. The guide wheels guide the cable from the vertical direction to the horizontal direction. It also includes a cable laying platform and a mobile device guide rail. The cable laying platform is located below the mobile device to receive the laid cables. The cable laying platform includes a table, and the length of the table is set parallel to the mobile device guide rail. The cables used are optical fibers or fiber optic cables.

[0005] The advantages and beneficial effects of this utility model are as follows: The communication system for mobile devices using the structure of this utility model can serve as a bridge connecting mobile devices with the central control system and substations because a transfer cable device is installed on the ground side. The cable wound on the cable winding device can be a composite cable with high folding resistance. Ordinary cables are used between the central control system, substation and ground-side transfer cable device to complete the power supply and electrical signal transmission. Therefore, the cost of cable investment can be saved and the cost of the entire equipment can be reduced.

[0006] Because the connecting cable device is located at one end of the mobile device's operating path, when the mobile device returns after completing its task at one end of the path, it only needs to reverse the direction of the drum to wind the cable. When it reaches the other end, the drum simply unwinds the cable. The cable does not need to bend in reverse; only the drum needs to unwind and rewind, thus preventing cable fatigue. This design is particularly suitable for scenarios using optical fiber as the cable, preventing micro-bending loss and extending the fiber's lifespan.

[0007] Because multiple substations are set up on the ground side, and each substation is equipped with a power supply device and a central control device, the power supply device can provide the required power to the equipment, and the central control device can process a group of mobile devices connected to it and the electrical signals sent by the central control system. The substation can be connected to multiple ground-side control devices and provide power to multiple ground-side control devices at the same time. Therefore, the pressure on the final control system can be reduced, and the processing speed of the final control system can be improved. Attached Figure Description

[0008] Figure 1 This is a schematic diagram illustrating the structural principle of a communication system embodiment applicable to mobile devices according to this utility model. Figure 2 This is a schematic diagram of the structure of an embodiment of the communication system of this utility model applicable to mobile devices; Figure 3 for Figure 2 A magnified view of a portion of the image; Figure 4 This is a schematic diagram of the structure of an embodiment of the adapter cable device; Figure 5 for Figure 4 Side view; Figure 6 This is a block diagram illustrating the principle of the line connection structure for a communication system suitable for mobile devices.

[0009] Explanation of reference numerals in the attached figures 1-Cables, 2-Operating lines, 3-Substation, 4-Central control system 100 - Cable winding and unwinding device, 101 - Drum, 200-Cable assembly, 300 - Cable guide device, 301 - Cable guide frame, 304 - Guide wheel, 400-Mobile Devices 500-Cable Laying Platform 600-Mobile Device Rail 800 - Adapter cable device, 801 - Cable reel, 802 - Pressure plate, 803 - Clamping bolt Detailed Implementation

[0010] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.

[0011] like Figure 1-5As shown in the figure, the communication system for mobile devices according to this embodiment includes a cable 1, a central control system 4, a substation 3, a transfer cable device 800, a mobile device-side control device, and a cable winding / unwinding device 100. The central control system and the substation are located far from the mobile device. The transfer cable device 800 is fixedly installed at one end of the mobile device's round-trip route. Preferably, the central control system and the substation are located adjacent to the transfer cable device. The central control system, the substation, the mobile device-side control device, and the mobile device are connected by a cable. The central control system is bidirectionally connected to the substation via the cable, and the substation is bidirectionally connected to the mobile device-side control device via the cable. The mobile device-side control device is bidirectionally connected to the mobile device. The mobile device-side control device collects electrical signals from the mobile device, controls the operation of the mobile device, receives instructions from the central control system, and sends electrical signals to the central control system, such as a PLC or an electrical signal acquisition device. The cable winding / unwinding device typically includes a cable drum and a drum rotation drive device. The cable is wound around the outside of the drum. Driven by the drum rotation drive device, the cable drum unwinds and rewinds the cable at a certain speed. The adapter cable is installed at one end or in the middle of the operating line 2 to fix the cable. When the reel winds up or unwinds the cable, it provides a fixed point to prevent the cable from being pulled off the substation equipment. The substation and the central control system are connected via bidirectional electrical signals through the cable. After being fixed by the adapter cable, the cable from the substation is connected to the control signal on the mobile device side. The adapter cable fixes the cable, and when the mobile device reaches the adapter cable, the cable turns or the mobile device returns. The adapter cable fixes the cable to the mobile line, providing a starting point for cable laying. The adapter cable includes a reel 801 for winding the cable and a cable fixing device for fixing the cable to the reel. The cable is wound around the reel and fixed to it by the cable fixing device. The reel itself is fixed to the operating line, but not directly to the cable. Because the cable is wound around the reel, it only loops around the reel and does not affect the cable laying direction. Preferably, the cable fixing device includes a pressure plate 802 and a clamping bolt 803. The pressure plate presses on the cable wound on the cable reel, and the length direction of the pressure plate is preferably aligned with the center line of the cable reel. The pressure plate is fixed to the cable reel by the clamping bolt. The cable located between the adapter and the control device on the mobile device side is wound on the reel of the cable winding and unwinding device. The mobile device 400 is used for loading and transporting operations, carrying the cable winding and unwinding device, and moving it along the operating line. Under the command of the control device on the mobile device side, the cable winding and unwinding device winds up and unwinds the cable according to the direction of movement of the mobile device. In the communication system for mobile devices using this utility model, only the cable located between the control device on the mobile device side and the adapter uses a high-cost fatigue-resistant cable, while the cable located between the central control system, substation, and adapter can use ordinary cable.Since the shortest distance between the central control system, substation, and mobile equipment is 3800 meters, 3800 meters of expensive cabling can be reduced for each mobile device. A port typically has 20 mobile devices, resulting in significant cost savings. In this invention, the transfer cable is fixedly installed at the end of the mobile device's round-trip route closest to the central control system and substation; this end is called the starting end. The other end is called the ending end. When the mobile device is at the starting point, the cable is wound on the drum. As the mobile device moves towards the ending point, the drum of the cable winding device rotates clockwise to release the cable, laying it along the path the mobile device has traveled. When the ending point is reached, the cable laying is complete. When the mobile device returns, the cable winding device drives the drum to rotate counterclockwise, coordinating the cable winding speed with the mobile device's movement speed. The cable is wound onto the drum as the device moves. When the mobile device reaches the starting point, it moves back in the opposite direction, and the drum of the cable winding device rotates clockwise to release the cable again. This process is repeated to dynamically connect the cable to the central control system, substation, and mobile device control devices without cable accumulation. More importantly, since only the drum's clockwise and counterclockwise rotation is involved during the mobile device's round trip, the cable itself does not need to adjust its direction. Therefore, the cable does not bend in the opposite direction, avoiding mechanical fatigue caused by repeated bending, thus improving communication stability and extending the lifespan of the entire communication system.

[0012] In this invention, due to the large number of mobile devices, a single central control system controls countless mobile devices, which places high demands on the processing capacity of the central control system. To solve this problem, it is best to set up multiple substations, and in each substation, in addition to the power supply device, at least one central control side control device is also set up. Each central control side control device is connected to the central control system via bidirectional electrical signals through a cable, and each central control side control device is connected to at least one other central control side control device via bidirectional electrical signals through a cable. The cable connecting the central control side control device and the mobile device side control device is fixed on a running line by a transfer cable device. In this way, the central control system can control multiple mobile devices separately through each central control side control device, and the central control side control device can share some functions, reducing the pressure on the central control system.

[0013] The following example illustrates the control of two sets of mobile equipment by a central control system. The two mobile equipment move between two coal yards. At the starting point of each set of mobile equipment, there is a central control system and two substations. Each set of mobile equipment is connected to one substation. Each mobile equipment has a corresponding transfer cable device, a cable winding / unwinding device, and its own mobile equipment-side control device. Each mobile equipment-side control device is connected to the central control-side control device in the substation via a cable. Each central control-side control device is wired to the central control system. The transfer cable device is fixedly located below the substation on its respective cable-laying platform; this location is called the starting point. The cable connecting the substation and the central control-side control device is stored on a reel, with a section secured by the transfer cable device. During operation, each mobile equipment moves from its starting point to its ending point. The cable winding / unwinding device on each mobile equipment unwinds the cable, laying it on the cable platform. The mobile equipment-side control device receives electrical energy from the substation and transmits electrical signals with the central control-side control device, enabling remote monitoring of multiple mobile equipment by a single central control system. This communication system is particularly suitable for scenarios where the cable is an optical fiber or fiber optic cable.

[0014] Of course, when the number of mobile devices is small, a substation may not be necessary, and the cables can be directly connected to the central control system bidirectionally after being fixed by the transfer cable device.

[0015] like Figure 2-3 As shown, to prevent cable tangling and untangling during cable deployment and retraction, a cable guide device 300 is also provided. The cable guide device 300 guides the cable, preventing large swings during deployment. Driven by the mobile equipment, it allows the cable to be smoothly laid on the ground or other platform surface along a predetermined direction. The cable guide device is fixedly mounted on the mobile equipment. The cable guide device includes a cable guide frame 301 and multiple guide wheels 304. The axles of each guide wheel are arranged in parallel, and the tangent points of each guide wheel and the cable are sequentially moved away from the center vertical cross-section, forming an arc. The cable guide device guides the cable, ensuring it is laid flat on the moving route.

[0016] Ideally, a cable routing device 200 should be installed between the cable guide frame and the drum. The cable passes through the cable routing device and enters between the two guide rollers of the guide roller group. In this way, when the cable is wound up, the cable can be neatly arranged on the surface of the drum, reducing the range of tension changes during cable unwinding and facilitating tension adjustment.

[0017] To prevent cables from being crushed or trampled, a cable-laying platform 500 and a mobile equipment guide rail 600 are provided. The cable-laying platform includes a frame, which comprises a support frame 501 and a platform 502. The platform 502 is fixedly mounted on the upper end of the support frame 501. The platform can be a flat structure or it can be composed of multiple horizontal beams arranged side by side, with the tops of each beam forming the platform. The adapter cable device is fixedly mounted below the cable-laying platform. After the cable extends tangentially to the reel above the cable-laying platform, it is laid flat on the platform.

[0018] The mobile device guide rail is located on the side of the cable-laying platform, extending along with the platform. Mobile device guide rails are installed on both sides of the cable-laying platform, and the mobile device is positioned above the top of the platform. This allows cables to be laid from above onto the cable-laying platform. The mobile device is equipped with wheels that are rotatably connected to the mobile device guide rails. The mobile device straddles the cable-laying platform. The mobile device guide rails allow it to move along the guide rails, improving the repeatability of the movement trajectory and reducing the difficulty of adjusting cable tension.

Claims

1. A communication system suitable for mobile devices, comprising a cable, a cable winding and unwinding device equipped with a spool and a spool rotation drive, the cable winding and unwinding device being mounted on the mobile device, the cable being wound around the spool, the mobile device being equipped with a mobile device-side control device, one end of the cable being electrically connected to the mobile device-side control device, and the mobile device reciprocating between the two ends of a running line, characterized in that: It also includes a central control system and a transfer cable device. The transfer cable device is located in the middle or at one end of the operating line, the central control system is located outside the mobile device, and the other end of the cable is fixed by the transfer cable device and connected to the central control system, thereby realizing a bidirectional electrical connection between the central control system and the control device on the mobile device side.

2. A communication system suitable for mobile devices as described in claim 1, characterized in that: The adapter cable is installed at one end of the operating line of the mobile device.

3. A communication system suitable for mobile devices as described in claim 2, characterized in that: The central control system is located near the adapter cable device.

4. A communication system suitable for mobile devices as described in claim 2, characterized in that: It also includes a substation located between the central control system and the transfer cable device. The substation includes a power supply device and a central control side control device. The transfer cable device is bidirectionally connected to the power supply device and the central control side control device of the substation via cables. The substation and the central control system are bidirectionally connected to the central control system via cables.

5. A communication system suitable for mobile devices as described in claim 1, characterized in that: The adapter cable device includes a cable reel and a pressure plate. After the cable is wound on the cable reel, it is pressed down by the pressure plate and the pressure plate is fixed to the cable reel by tightening bolts, thereby fixing the cable to the cable reel.

6. A communication system suitable for mobile devices as described in claim 4, characterized in that: The cable on the cable winding and unwinding device is a mechanically fatigue-resistant cable, and the cable between the transfer cable device and the substation is a regular cable.

7. A communication system suitable for mobile devices as described in claim 3, characterized in that: Two or more mobile control devices are bidirectionally electrically connected to the central control system. At least one substation is set up. Each central control device in the substation is bidirectionally electrically connected to the central control system. Each central control device is bidirectionally electrically connected to at least one mobile control device. Each cable connecting the central control device and the mobile control device is fixed by a transfer cable device.

8. A communication system suitable for mobile devices as described in claim 1, characterized in that, A cable guide device is provided between the cable winding and unwinding device and the adapter device. The cable guide device includes a cable guide frame located below the drum. Multiple guide wheels are provided on the cable guide frame, which are arranged from top to bottom. The axles of the guide wheels are arranged in parallel. From top to bottom, the tangent points of each guide wheel and the cable are successively away from the central vertical section to form an arc. The guide wheels guide the cable from the vertical direction to the horizontal direction.

9. A communication system suitable for mobile devices as described in claim 3, characterized in that, It also includes a cable laying platform and a mobile device guide rail. The cable laying platform is located below the mobile device to receive the laid cables. The cable laying platform includes a table, and the length of the table is set parallel to the mobile device guide rail.

10. A communication system suitable for mobile devices as described in claim 1, characterized in that, The cables used are optical fibers or fiber optic cables.

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